From 8556d0cdf7058be2c519bd4d8e7006ea9e913527 Mon Sep 17 00:00:00 2001 From: Miodrag Milanovic Date: Sat, 10 Jan 2015 13:30:30 +0100 Subject: [PATCH] Added integral source of mongoose (nw) --- 3rdparty/mongoose/LICENSE | 16 + 3rdparty/mongoose/README.md | 88 + 3rdparty/mongoose/docs/API.md | 246 + 3rdparty/mongoose/docs/AndroidBuild.md | 27 + 3rdparty/mongoose/docs/BasicWebsite.md | 34 + 3rdparty/mongoose/docs/Embed.md | 173 + 3rdparty/mongoose/docs/FAQ.md | 45 + 3rdparty/mongoose/docs/FileSharing.md | 18 + 3rdparty/mongoose/docs/Internals.md | 44 + 3rdparty/mongoose/docs/LuaSqlite.md | 51 + 3rdparty/mongoose/docs/Options.md | 154 + 3rdparty/mongoose/docs/PhpWebsite.md | 49 + 3rdparty/mongoose/docs/ReleaseNotes.md | 193 + 3rdparty/mongoose/docs/SSL.md | 75 + 3rdparty/mongoose/docs/Usage.md | 86 + 3rdparty/mongoose/examples/Makefile | 15 + .../mongoose/examples/big_upload/Makefile | 12 + .../mongoose/examples/big_upload/big_upload.c | 84 + .../examples/cookie_authentication/Makefile | 12 + .../cookie_authentication/cookie_auth.c | 96 + .../examples/cookie_authentication/index.html | 33 + .../examples/cookie_authentication/login.html | 44 + 3rdparty/mongoose/examples/csharp/example.cs | 43 + 3rdparty/mongoose/examples/csharp/mongoose.cs | 68 + .../examples/digest_authentication/Makefile | 12 + .../digest_authentication/digest_auth.c | 36 + .../mongoose/examples/file_upload/Makefile | 20 + .../examples/file_upload/file_upload.c | 59 + .../mongoose/examples/form_submit/Makefile | 12 + .../examples/form_submit/form_submit.c | 62 + .../mongoose/examples/hello_world/Makefile | 21 + .../examples/hello_world/hello_world.c | 38 + .../mongoose/examples/http_client/Makefile | 12 + .../examples/http_client/http_client.c | 82 + .../mongoose/examples/mjpg_streamer/Makefile | 12 + .../examples/mjpg_streamer/mjpg_streamer.c | 105 + .../examples/multi_threaded_server/Makefile | 12 + .../multi_threaded_server.c | 40 + .../mongoose/examples/proxy_server/Makefile | 13 + .../examples/proxy_server/proxy_server.c | 202 + .../proxy_web_root/app1/index.html | 23 + .../proxy_web_root/app2/index.html | 37 + .../proxy_server/proxy_web_root/index.html | 29 + .../examples/proxy_server/ssl_cert.pem | 50 + .../mongoose/examples/restful_api/Makefile | 12 + .../mongoose/examples/restful_api/index.html | 66 + .../examples/restful_api/restful_api.c | 51 + 3rdparty/mongoose/examples/send_file/Makefile | 21 + .../mongoose/examples/send_file/send_file.c | 27 + .../mongoose/examples/web_server/Makefile | 12 + .../mongoose/examples/web_server/web_server.c | 491 ++ .../mongoose/examples/websocket_chat/Makefile | 12 + .../examples/websocket_chat/index.html | 98 + .../examples/websocket_chat/websocket_chat.c | 83 + .../examples/websocket_echo_server/Makefile | 12 + .../examples/websocket_echo_server/index.html | 46 + .../websocket_echo_server.c | 61 + .../examples/websocket_ssl_proxy/Makefile | 15 + .../websocket_ssl_proxy/certs/ws1_ca.pem | 49 + .../websocket_ssl_proxy/certs/ws1_client.pem | 45 + .../websocket_ssl_proxy/certs/ws1_server.pem | 45 + .../websocket_ssl_proxy/certs/ws2_ca.pem | 49 + .../websocket_ssl_proxy/certs/ws2_client.pem | 45 + .../websocket_ssl_proxy/certs/ws2_server.pem | 45 + .../websocket_ssl_proxy/net_skeleton.h | 253 + .../websocket_ssl_proxy/ssl_wrapper.c | 123 + .../websocket_ssl_proxy/ssl_wrapper.h | 34 + .../examples/websocket_ssl_proxy/ws_ssl.c | 182 + .../examples/websocket_ssl_proxy/ws_ssl.html | 50 + 3rdparty/mongoose/jni/Android.mk | 8 + 3rdparty/mongoose/mongoose.c | 5287 +++++++++++++++++ {src/lib/web => 3rdparty/mongoose}/mongoose.h | 118 +- .../mongoose/scripts/embed_binary_files.pl | 53 + 3rdparty/mongoose/test/Makefile | 21 + 3rdparty/mongoose/test/unit_test.c | 530 ++ src/lib/lib.mak | 7 +- src/lib/web/mongoose.c | 5196 ---------------- 77 files changed, 10470 insertions(+), 5260 deletions(-) create mode 100644 3rdparty/mongoose/LICENSE create mode 100644 3rdparty/mongoose/README.md create mode 100644 3rdparty/mongoose/docs/API.md create mode 100644 3rdparty/mongoose/docs/AndroidBuild.md create mode 100644 3rdparty/mongoose/docs/BasicWebsite.md create mode 100644 3rdparty/mongoose/docs/Embed.md create mode 100644 3rdparty/mongoose/docs/FAQ.md create mode 100644 3rdparty/mongoose/docs/FileSharing.md create mode 100644 3rdparty/mongoose/docs/Internals.md create mode 100644 3rdparty/mongoose/docs/LuaSqlite.md create mode 100644 3rdparty/mongoose/docs/Options.md create mode 100644 3rdparty/mongoose/docs/PhpWebsite.md create mode 100644 3rdparty/mongoose/docs/ReleaseNotes.md create mode 100644 3rdparty/mongoose/docs/SSL.md create mode 100644 3rdparty/mongoose/docs/Usage.md create mode 100644 3rdparty/mongoose/examples/Makefile create mode 100644 3rdparty/mongoose/examples/big_upload/Makefile create mode 100644 3rdparty/mongoose/examples/big_upload/big_upload.c create mode 100644 3rdparty/mongoose/examples/cookie_authentication/Makefile create mode 100644 3rdparty/mongoose/examples/cookie_authentication/cookie_auth.c create mode 100644 3rdparty/mongoose/examples/cookie_authentication/index.html create mode 100644 3rdparty/mongoose/examples/cookie_authentication/login.html create mode 100644 3rdparty/mongoose/examples/csharp/example.cs create mode 100644 3rdparty/mongoose/examples/csharp/mongoose.cs create mode 100644 3rdparty/mongoose/examples/digest_authentication/Makefile create mode 100644 3rdparty/mongoose/examples/digest_authentication/digest_auth.c create mode 100644 3rdparty/mongoose/examples/file_upload/Makefile create mode 100644 3rdparty/mongoose/examples/file_upload/file_upload.c create mode 100644 3rdparty/mongoose/examples/form_submit/Makefile create mode 100644 3rdparty/mongoose/examples/form_submit/form_submit.c create mode 100644 3rdparty/mongoose/examples/hello_world/Makefile create mode 100644 3rdparty/mongoose/examples/hello_world/hello_world.c create mode 100644 3rdparty/mongoose/examples/http_client/Makefile create mode 100644 3rdparty/mongoose/examples/http_client/http_client.c create mode 100644 3rdparty/mongoose/examples/mjpg_streamer/Makefile create mode 100644 3rdparty/mongoose/examples/mjpg_streamer/mjpg_streamer.c create mode 100644 3rdparty/mongoose/examples/multi_threaded_server/Makefile create mode 100644 3rdparty/mongoose/examples/multi_threaded_server/multi_threaded_server.c create mode 100644 3rdparty/mongoose/examples/proxy_server/Makefile create mode 100644 3rdparty/mongoose/examples/proxy_server/proxy_server.c create mode 100644 3rdparty/mongoose/examples/proxy_server/proxy_web_root/app1/index.html create mode 100644 3rdparty/mongoose/examples/proxy_server/proxy_web_root/app2/index.html create mode 100644 3rdparty/mongoose/examples/proxy_server/proxy_web_root/index.html create mode 100644 3rdparty/mongoose/examples/proxy_server/ssl_cert.pem create mode 100644 3rdparty/mongoose/examples/restful_api/Makefile create mode 100644 3rdparty/mongoose/examples/restful_api/index.html create mode 100644 3rdparty/mongoose/examples/restful_api/restful_api.c create mode 100644 3rdparty/mongoose/examples/send_file/Makefile create mode 100644 3rdparty/mongoose/examples/send_file/send_file.c create mode 100644 3rdparty/mongoose/examples/web_server/Makefile create mode 100644 3rdparty/mongoose/examples/web_server/web_server.c create mode 100644 3rdparty/mongoose/examples/websocket_chat/Makefile create mode 100644 3rdparty/mongoose/examples/websocket_chat/index.html create mode 100644 3rdparty/mongoose/examples/websocket_chat/websocket_chat.c create mode 100644 3rdparty/mongoose/examples/websocket_echo_server/Makefile create mode 100644 3rdparty/mongoose/examples/websocket_echo_server/index.html create mode 100644 3rdparty/mongoose/examples/websocket_echo_server/websocket_echo_server.c create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/Makefile create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_ca.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_client.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_server.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_ca.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_client.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_server.pem create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/net_skeleton.h create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.c create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.h create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.c create mode 100644 3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.html create mode 100644 3rdparty/mongoose/jni/Android.mk create mode 100644 3rdparty/mongoose/mongoose.c rename {src/lib/web => 3rdparty/mongoose}/mongoose.h (52%) create mode 100644 3rdparty/mongoose/scripts/embed_binary_files.pl create mode 100644 3rdparty/mongoose/test/Makefile create mode 100644 3rdparty/mongoose/test/unit_test.c delete mode 100644 src/lib/web/mongoose.c diff --git a/3rdparty/mongoose/LICENSE b/3rdparty/mongoose/LICENSE new file mode 100644 index 00000000000..08bf9ddc136 --- /dev/null +++ b/3rdparty/mongoose/LICENSE @@ -0,0 +1,16 @@ +Copyright (c) 2004-2013 Sergey Lyubka +Copyright (c) 2013 Cesanta Software Limited +All rights reserved + +This code is dual-licensed: you can redistribute it and/or modify +it under the terms of the GNU General Public License version 2 as +published by the Free Software Foundation. For the terms of this +license, see . + +You are free to use this code under the terms of the GNU General +Public License, but WITHOUT ANY WARRANTY; without even the implied +warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +See the GNU General Public License for more details. + +Alternatively, you can license this code under a commercial +license, as set out in . diff --git a/3rdparty/mongoose/README.md b/3rdparty/mongoose/README.md new file mode 100644 index 00000000000..20de33d5ee2 --- /dev/null +++ b/3rdparty/mongoose/README.md @@ -0,0 +1,88 @@ +# Mongoose Web Server + +Mongoose is the most easy to use web server on the planet. A web server of choice for Web developers (PHP, Ruby, Python, etc) and Web designers. + +Mongoose is built on top of Libmongoose embedded library, which can turn +anything into a web server in 5 minutes worth of effort and few lines of code. +Libmongoose is used to serve Web GUI on embedded devices, implement RESTful +services, RPC frameworks (e.g. JSON-RPC), handle telemetry data exchange, and +perform many other tasks in various different industries including aerospace, +manufacturing, finance, research, automotive, gaming, IT. + + + * [Mailing list](http://groups.google.com/group/mongoose-users) + * [Downloads](http://cesanta.com/products.shtml) + * [Documentation](http://cesanta.com/docs.shtml) + +Check out Fossa - our [embedded multi-protocol library](https://github.com/cesanta/fossa) with TCP,UDP,HTTP,Websocket,MQTT,DNS support, designed for Internet Of Things! + +# Features + +- Works on Windows, Mac, UNIX/Linux, iPhone, Android eCos, QNX +and many other platforms +- CGI, SSI, SSL, Digest auth, Websocket, WEbDAV, Resumed download, + URL rewrite, file blacklist +- Custom error pages, Virtual hosts, IP-based ACL, Windows service, + HTTP/HTTPS client +- Simple and clean + [embedding API](https://github.com/cesanta/mongoose/blob/master/mongoose.h). + The source is in single + [mongoose.c](https://github.com/cesanta/mongoose/blob/master/mongoose.c) file + to make embedding easy +- Extremely lightweight, has a core of under 40kB and tiny runtime footprint +- Asynchronous, non-blocking core supporting single- or multi-threaded usage +- On the market since 2004 with over 1 million cumulative downloads +- Stable, mature and tested, has several man-years invested + in continuous improvement and refinement + +# Screenshots + +Download, double-click to start, run browser -- that's all! + +![shot1](http://cesanta.com/images/tut_sharing/tut1.png) +![shot2](http://cesanta.com/images/tut_sharing/tut2.png) + +![shot3](http://cesanta.com/images/tut_sharing/tut3.png) +![shot4](http://cesanta.com/images/tut_sharing/tut4.png) + +# Acknowledgements + +Mongoose made better thanks to the contribution of following people: + +Arnout Vandecappelle, Benoît Amiaux, Boris Pek, Cody Hanson, Colin Leitner, +Daniel Oaks, Eric Bakan, Erik Oomen, Filipp Kovalev, Ger Hobbelt, +Hendrik Polczynski, Igor Okulist, Jay, Joe Mucchiello, John Safranek, +José Miguel Gonçalves, Shueng Chuan, Katerina Blinova, Konstantin Sorokin, +Marin Atanasov, Matt Healy, Mitch Hendrickson, Nigel Stewart, Pavel Khlebovich, +Sebastian Reinhard, Stefan Doehla, abadc0de, nullable.type, +T.Barmann, D.Hughes, J.C.Sloan, R.Romeo, L.E.Spencer, S.Kotay, R.M.Shorter, +W.Mar, J.Wilander, Santa from Memphis, S.Davies, C.Beck, +O.M.Vilhunen, C.Radik, G.Woodcock, M.Szczepkowski, +Eternal Lands Dev Team, T.Tollet, C.Tangerino, G.Karsai, A.Bourgett, +C.Blakemore, D.Fonaryov, T.Andrle, O.IJsselmuiden, R.Womack, M.Tomlinson, +A.Slåttå, L.Farrell, J.D.P.Ballestero, V.Albaev, B.Harker, T.Scheffel, H.Klein, +R.Merit, T.Bennett, H.Solis, A.Zincenko, M.S., S.Krul, K.Cooke, S.McCallum, +F.Morenius, and 10 others. + +# Licensing + +Mongoose is released under commercial and +[GNU GPL v.2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) open +source licenses. The GPLv2 open source License does not generally permit +incorporating this software into non-open source programs. +For those customers who do not wish to comply with the GPLv2 open +source license requirements, +[Cesanta Software](http://cesanta.com) offers a full, +royalty-free commercial license and professional support +without any of the GPL restrictions. + +# Other products by Cesanta Software: simple and effective + +- [SSL Wrapper](https://github.com/cesanta/ssl_wrapper) - application to + secure network communications +- [Frozen](https://github.com/cesanta/frozen) - JSON parser and generator +- [SLRE](https://github.com/cesanta/slre) - Super Light Regular Expression + library +- [Net Skeleton](https://github.com/cesanta/net_skeleton) - framework for + building network applications +- [SLDR](https://github.com/cesanta/sldr) - Super Light DNS Resolver diff --git a/3rdparty/mongoose/docs/API.md b/3rdparty/mongoose/docs/API.md new file mode 100644 index 00000000000..5fb61a2e018 --- /dev/null +++ b/3rdparty/mongoose/docs/API.md @@ -0,0 +1,246 @@ +# Mongoose API Reference + + struct mg_server *mg_create_server(void *server_param); + +Creates web server instance. Returns opaque instance pointer, or NULL if +there is not enough memory. `server_param`: Could be any pointer, or NULL. +This pointer will be passed +to the callback functions as `struct mg_connection::server_param` field. +A common use case is to pass `this` pointer of the C++ wrapper class +as `user_param`, to let the callback get the pointer to the C++ object. + +Note that this function doesn't make the +server instance to serve. Serving is done by `mg_poll_server()` function. +Mongoose has single-threaded, event-driven, asynchronous, non-blocking core. +When server instance is created, it contains an information about +the configuration and the state of each connection. +Server instance is capable on listening on only one port. After creation, +`struct mg_server` has a list +of active connections and configuration parameters. + +Side-effect: on UNIX, `mg_create_server()` ignores SIGPIPE signals. If custom +processing is required SIGPIPE, signal handler must be set up after +calling `mg_create_server()`. + +Important: Mongoose does not install `SIGCHLD` handler. If CGI is used, +`SIGCHLD` handler must be set up to reap CGI zombie processes. + + + void mg_destroy_server(struct mg_server **server); + +Deallocates web server instance, closes all pending connections, and makes +server pointer a NULL pointer. + + const char mg_set_option(struct mg_server *server, const char *name, + const char *value); + +Sets a particular server option. Note that at least one option, +`listening_port`, must be specified. To serve static files, `document_root` +must be specified too. If `document_root` option is left unset, Mongoose +will not access filesystem at all. `mg_set_option()` returns NULL if option was +set successfully, otherwise it returns human-readable error string. It is +allowed to call `mg_set_option()` by the same thread that does +`mg_poll_server()` (Mongoose thread) and change server configuration while it +is serving, in between `mg_poll_server()` calls. + + int mg_poll_server(struct mg_server *server, int milliseconds); + +Performs one iteration of IO loop by iterating over all +active connections, performing `select()` syscall on all sockets with a timeout +of `milliseconds`. When `select()` returns, Mongoose +does an IO for each socket that has data to be sent or received. Application +code must call `mg_poll_server()` in a loop. It is an error to have more then +one thread calling `mg_poll_server()`, `mg_set_option()` or any other function +that take `struct mg_server *` parameter. Mongoose does not +mutex-protect `struct mg_server *`, therefore only single thread +(Mongoose thread) should make Mongoose calls. + +`mg_poll_server()` calls user-specified event handler when certain events +occur. Sequence of events for the accepted connection is this: + + * `MG_AUTH` - Mongoose asks whether this connection is authorized. If event + handler returns `MG_FALSE`, then Mongoose does not serve the request but + sends authorization request to the client. If `MG_TRUE` is returned, + then Mongoose continues on with the request. + * `MG_REQUEST` - Mongoose asks event handler to serve the request. If + event handler serves the request by sending a reply, + it should return `MG_TRUE`. Otherwise, + it should return `MG_FALSE` which tells Mongoose that request is not + served and Mongoose should serve it. For example, event handler might + choose to serve only RESTful API requests with URIs that start with + certain prefix, and let Mongoose serve all static files. + If event handler decides to serve the request, but doesn't have + all the data at the moment, it should return `MG_MORE`. That tells + Mongoose to keep the connection open after callback returns. + + `mg_connection::connection_param` pointer is a placeholder to keep + user-specific data. For example, handler could decide to open a DB + connection and store DB connection handle in `connection_param`. + * `MG_POLL` is sent to every connection on every iteration of + `mg_poll_server()`. Event handler should return `MG_FALSE` to ignore + this event. If event handler returns `MG_TRUE`, then Mongoose assumes + that event handler has finished sending data, and Mongoose will + close the connection. + * `MG_HTTP_ERROR` sent when Mongoose is about to send HTTP error back + to the client. Event handler can choose to send a reply itself, in which + case event handler must return `MG_TRUE`. Otherwise, event handler must + return `MG_FALSE`. + * `MG_CLOSE` is sent when the connection is closed. This event is used + to cleanup per-connection state stored in `connection_param` + if it was allocated. Event handler return value is ignored. + +Sequence of events for the client connection is this: + + * `MG_CONNECT` sent when Mongoose has connected to the remote host. + This event is sent to the connection initiated by `mg_connect()` call. + Connection status is held in `mg_connection::status_code`: if zero, + then connection was successful, otherwise connection was not established. + User should send a request upon successful connection. + Event handler should return `MG_TRUE` if connection was successful and + HTTP request has been sent. Otherwise, it should send `MG_FALSE`. + * `MG_REPLY` is sent when response has been received from the remote host. + If event handler sends another request, then it should return `MG_TRUE`. + Otherwise it should return `MG_FALSE` and Mongoose will close the connection. + * `MG_CLOSE` same as for the accepted connection. + + +When mongoose buffers in HTTP request and successfully parses it, it sends +`MG_REQUEST` event for GET requests immediately. For POST requests, +Mongoose delays the call until the whole POST request is buffered in memory. +POST data is available to the callback as `struct mg_connection::content`, +and POST data length is in `struct mg_connection::content_len`. + +Note that websocket connections are treated the same way. Mongoose buffers +websocket frame in memory, and calls event handler when frame is fully +buffered. Frame data is available `struct mg_connection::content`, and +data length is in `struct mg_connection::content_len`, i.e. very similar to +the POST request. `struct mg_connection::is_websocket` flag indicates +whether the request is websocket or not. Also, for websocket requests, +there is `struct mg_connection::wsbits` field which contains first byte +of the websocket frame which URI handler can examine. Note that to +reply to the websocket client, `mg_websocket_write()` should be used. +To reply to the plain HTTP client, `mg_write_data()` should be used. + +Return value: number of active connections. + + + const char **mg_get_valid_option_names(void); + +Returns a NULL-terminated array of option names and their default values. +There are two entries per option in an array: an option name followed by a +default value. A default value could be NULL. A NULL name indicates an end +of the array. + + const char *mg_get_option(const struct mg_server *server, const char *name); + +Returns the value of particular configuration parameter. If +given parameter name is not valid, NULL is returned. For valid names, return +value is guaranteed to be non-NULL. If parameter is not set, zero-length string +is returned. + + void mg_wakeup_server_ex(struct mg_server *, mg_handler_t func, + const char *fmt, ...); + +Sends string message to a server. Function `func` is called for every active +connection. String message is passed in `struct mg_connection::callback_param`. +This function is designed to push data to the connected clients, and +can be called from any thread. There is a limitation on the length of +the message, currently at 8 kilobytes. + + void mg_send_status(struct mg_connection *, int status_code); + void mg_send_header(struct mg_connection *, const char *name, + const char *value); + void mg_send_data(struct mg_connection *, const void *data, int data_len); + void mg_printf_data(struct mg_connection *, const char *format, ...); + +These functions are used to construct a response to the client. HTTP response +consists of three parts: a status line, zero or more HTTP headers, +a response body. Mongoose provides functions for all three parts: + * `mg_send_status()` is used to create status line. This function can be + called zero or once. If `mg_send_status()` is not called, then Mongoose + will send status 200 (success) implicitly. + * `mg_send_header()` adds HTTP header to the response. This function could + be called zero or more times. + * `mg_send_data()` and `mg_printf_data()` are used to send data to the + client. Note that Mongoose adds `Transfer-Encoding: chunked` header + implicitly, and sends data in chunks. Therefore, it is not necessary to + set `Content-Length` header. Note that `mg_send_data()` and + `mg_printf_data()` do not send data immediately. Instead, they spool + data in memory, and Mongoose sends that data later after URI handler + returns. If data to be sent is huge, an URI handler might + send data in pieces by saving state in + `struct mg_connection::connection_param` variable and returning `0`. Then + Mongoose will call a handler repeatedly after each socket write. + + + + void mg_send_file(struct mg_connection *, const char *path); + +Tells Mongoose to serve given file. Mongoose handles file according to +it's extensions, i.e. Mongoose will invoke CGI script if `path` has CGI +extension, it'll render SSI file if `path` has SSI extension, etc. If `path` +points to a directory, Mongoose will show directory listing. If this function +is used, no calls to `mg_send*` or `mg_printf*` functions must be made, and +event handler must return `MG_MORE`. + + int mg_websocket_write(struct mg_connection* conn, int opcode, + const char *data, size_t data_len); + +Similar to `mg_write()`, but wraps the data into a websocket frame with a +given websocket `opcode`. + + const char *mg_get_header(const struct mg_connection *, const char *name); + +Get the value of particular HTTP header. This is a helper function. +It traverses http_headers array, and if the header is present in the array, +returns its value. If it is not present, NULL is returned. + + + int mg_get_var(const struct mg_connection *conn, const char *var_name, + char *buf, size_t buf_len); + +Gets HTTP form variable. Both POST buffer and query string are inspected. +Form variable is url-decoded and written to the buffer. On success, this +function returns the length of decoded variable. On error, -1 is returned if +variable not found, and -2 is returned if destination buffer is too small +to hold the variable. Destination buffer is guaranteed to be +'\0' - terminated if it is not NULL or zero length. + + int mg_parse_header(const char *hdr, const char *var_name, char *buf, + size_t buf_size); + +This function parses HTTP header and fetches given variable's value in a buffer. +A header should be like `x=123, y=345, z="other value"`. This function is +designed to parse Cookie headers, Authorization headers, and similar. Returns +the length of the fetched value, or 0 if variable not found. + + int mg_modify_passwords_file(const char *passwords_file_name, + const char *domain, + const char *user, + const char *password); + +Add, edit or delete the entry in the passwords file. +This function allows an application to manipulate .htpasswd files on the +fly by adding, deleting and changing user records. This is one of the +several ways of implementing authentication on the server side. +If password is not NULL, entry is added (or modified if already exists). +If password is NULL, entry is deleted. +Return: 1 on success, 0 on error. + + + int mg_parse_multipart(const char *buf, int buf_len, + char *var_name, int var_name_len, + char *file_name, int file_name_len, + const char **data, int *data_len); + +Parses a buffer that contains multipart form data. Stores chunk name +in a `var_name` buffer. If chunk is an uploaded file, then `file_name` +will have a file name. `data` and `data_len` will point to the chunk data. +Returns number of bytes to skip to the next chunk. + + struct mg_connection *mg_connect(struct mg_server *server, + const char *host, int port, int use_ssl); + +Create connection to the remote host. Returns `NULL` on error, non-null +if the connection has been scheduled for connection. Upon a connection, +Mongoose will send `MG_CONNECT` event to the event handler. diff --git a/3rdparty/mongoose/docs/AndroidBuild.md b/3rdparty/mongoose/docs/AndroidBuild.md new file mode 100644 index 00000000000..afd21522f55 --- /dev/null +++ b/3rdparty/mongoose/docs/AndroidBuild.md @@ -0,0 +1,27 @@ +# Mongoose Build on Android + +This is a small guide to help you run mongoose on Android. Currently it is +tested on the HTC Wildfire. If you have managed to run it on other devices +as well, please comment or drop an email in the mailing list. +Note : You dont need root access to run mongoose on Android. + +- Clone Mongoose Git repo +- Download the Android NDK from [http://developer.android.com/tools/sdk/ndk/index.html](http://developer.android.com/tools/sdk/ndk/index.html) +- Run `/path-to-ndk/ndk-build -C /path/to/mongoose` + That should generate mongoose/lib/armeabi/mongoose +- Using the adb tool (you need to have Android SDK installed for that), + push the generated mongoose binary to `/data/local` folder on device. +- From adb shell, navigate to `/data/local` and execute `./mongoose`. +- To test if the server is running fine, visit your web-browser and + navigate to `http://127.0.0.1:8080` You should see the `Index of /` page. + +![screenshot](http://cesanta.com/images/android_build.png) + + +Notes: + +- `jni` stands for Java Native Interface. Read up on Android NDK if you want + to know how to interact with the native C functions of mongoose in Android + Java applications. +- TODO: A Java application that interacts with the native binary or a + shared library. diff --git a/3rdparty/mongoose/docs/BasicWebsite.md b/3rdparty/mongoose/docs/BasicWebsite.md new file mode 100644 index 00000000000..c5c93c7760d --- /dev/null +++ b/3rdparty/mongoose/docs/BasicWebsite.md @@ -0,0 +1,34 @@ +How To Create Basic Website With Mongoose +=========================================== + +## 1. Create a directory which will contain your website files. For example, on drive `C:\`, create a directory called `my_website`: + +![screenshot](http://cesanta.com/images/tut_basic/tut1.png) + +## 2. Inside `my_website` directory, create a new file called "index". This will be the default web page shown when the website is visited. + +![screenshot](http://cesanta.com/images/tut_basic/tut2.png) + +## 3. Open index file with your favorite editor (for example, Notepad) and enter some HTML code: + +![screenshot](http://cesanta.com/images/tut_basic/tut3.png) + +## 4. Save this file as `index.html`: + +![screenshot](http://cesanta.com/images/tut_basic/tut4.png) + + +## 5. Download Mongoose executable from http://cesanta.com/mongoose.shtml and copy the executable inside `my_website` directory: + +![screenshot](http://cesanta.com/images/tut_basic/tut5.png) + +## 6. Double-click mongoose executable. An icon will appear on a system tray in the bottom right corner of the desktop: + +![screenshot](http://cesanta.com/images/tut_basic/tut6.png) + +## 7. Click on the mongoose icon and choose "Go to my address" menu: +![screenshot](http://cesanta.com/images/tut_basic/tut7.png) + +## 8. A browser will popup displaying `index.html` file. Now, you can expand your website by adding more content. + +![screenshot](http://cesanta.com/images/tut_basic/tut8.png) diff --git a/3rdparty/mongoose/docs/Embed.md b/3rdparty/mongoose/docs/Embed.md new file mode 100644 index 00000000000..28274ac66ca --- /dev/null +++ b/3rdparty/mongoose/docs/Embed.md @@ -0,0 +1,173 @@ +# Mongoose Embedding Guide + +Embedding Mongoose is done in two steps: + + 1. Copy + [mongoose.c](https://raw.github.com/cesanta/mongoose/master/mongoose.c) and + [mongoose.h](https://raw.github.com/cesanta/mongoose/master/mongoose.h) + to your application's source tree and include them in the build. + 2. Somewhere in the application code, call `mg_create_server()` to create + a server, configure it with `mg_set_option()` and loop with + `mg_poll_server()` until done. Call `mg_destroy_server()` to cleanup. + +Here's a minimal application `app.c` that embeds mongoose: + + #include "mongoose.h" + + int main(void) { + struct mg_server *server = mg_create_server(NULL, NULL); + mg_set_option(server, "document_root", "."); // Serve current directory + mg_set_option(server, "listening_port", "8080"); // Open port 8080 + + for (;;) { + mg_poll_server(server, 1000); // Infinite loop, Ctrl-C to stop + } + mg_destroy_server(&server); + + return 0; + } + +To compile it, put `mongoose.c`, `mongoose.h` and `app.c` into one +folder, start terminal on UNIX or Visual Studio command line prompt on Windows, +and run the following command: + + cc app.c mongoose.c -pthread -o app # on Unix + cl.exe app.c mongoose.c /TC /MD # on Windows + +When run, this simple application opens port 8080 and serves static files, +CGI files and lists directory content in the current working directory. + +It is possible to generate HTML page content. Mongoose can call user-defined +function when certain events occur. +That function is called _an event handler_, and it is the second parameter +to `mg_create_server()` function. Here is the example event handler function: + + int event_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + default: return MG_FALSE; + } + } + +Event handler is called by Mongoose with `struct mg_connection *` +pointer and an event number. `struct mg_connection *conn` +has all information about the request: HTTP headers, POST or websocket +data buffer, etcetera. `enum mg_event ev` tells which exactly event is sent. +For each event, an event handler returns a value which tells Mongoose how +to behave. + +The sequence of events for every connection is this: + + * `MG_AUTH` - Mongoose asks whether this connection is authorized. If event + handler returns `MG_FALSE`, then Mongoose does not serve the request but + sends authorization request to the client. If `MG_TRUE` is returned, + then Mongoose continues on with the request. + * `MG_REQUEST` - Mongoose asks event handler to serve the request. If + event handler serves the request by sending a reply, + it should return `MG_TRUE`. Otherwise, + it should return `MG_FALSE` which tells Mongoose that request is not + served and Mongoose should serve it. For example, event handler might + choose to serve only RESTful API requests with URIs that start with + certain prefix, and let Mongoose serve all static files. + If event handler decides to serve the request, but doesn't have + all the data at the moment, it should return `MG_MORE`. That tells + Mongoose to keep the connection open after callback returns. + + `mg_connection::connection_param` pointer is a placeholder to keep + user-specific data. For example, handler could decide to open a DB + connection and store DB connection handle in `connection_param`. + * `MG_POLL` is sent to every connection on every iteration of + `mg_poll_server()`. Event handler should return `MG_FALSE` to ignore + this event. If event handler returns `MG_TRUE`, then Mongoose assumes + that event handler has finished sending data, and Mongoose will + close the connection. + * `MG_HTTP_ERROR` sent when Mongoose is about to send HTTP error back + to the client. Event handler can choose to send a reply itself, in which + case event handler must return `MG_TRUE`. Otherwise, event handler must + return `MG_FALSE` + * `MG_CLOSE` is sent when the connection is closed. This event is used + to cleanup per-connection state stored in `connection_param` + if it was allocated. + +Let's extend our minimal application example and +create an URI that will be served by user's C code. The app will handle +`/hello` URI by showing a hello message. So, when app is run, +http://127.0.0.1:8080/hello will say hello, and here's the code: + + #include + #include "mongoose.h" + + static int event_handler(struct mg_connection *conn, enum mg_event ev) { + if (ev == MG_AUTH) { + return MG_TRUE; // Authorize all requests + } else if (ev == MG_REQUEST && !strcmp(conn->uri, "/hello")) { + mg_printf_data(conn, "%s", "Hello world"); + return MG_TRUE; // Mark as processed + } else { + return MG_FALSE; // Rest of the events are not processed + } + } + + int main(void) { + struct mg_server *server = mg_create_server(NULL, event_handler); + mg_set_option(server, "document_root", "."); + mg_set_option(server, "listening_port", "8080"); + + for (;;) { + mg_poll_server(server, 1000); // Infinite loop, Ctrl-C to stop + } + mg_destroy_server(&server); + + return 0; + } + +## Example code + +Mongoose source code contains number of examples, located in the +[examples](https://github.com/cesanta/mongoose/blob/master/examples/) directory. +To build any example, go to the respective directory and run `make`. + +## Compilation flags + +Below is the list of compilation flags that enable or disable certain +features. By default, some features are enabled, and could be disabled +by setting appropriate `NO_*` flag. Features that are disabled by default +could be enabled by setting appropriate `USE_*` flag. Bare bones Mongoose +is quite small, about 30 kilobytes of compiled x86 code. Each feature adds +a couple of kilobytes to the executable size, and also has some runtime penalty. + +Note that some flags start with `NS_` prefix. This is because Mongoose uses +[Net Skeleton](http://github.com/cesanta/net_skeleton) as a low-level +networking engine. If user code has `#include `, then +all Net Skeleton functions will be available too. + + + -DMONGOOSE_NO_AUTH Disable MD5 authorization support + -DMONGOOSE_NO_CGI Disable CGI support + -DMONGOOSE_NO_DAV Disable WebDAV support + (PUT, DELETE, MKCOL, PROPFIND methods) + -DMONGOOSE_NO_DIRECTORY_LISTING Disable directory listing + -DMONGOOSE_NO_FILESYSTEM Disables all file IO, serving from memory only + -DMONGOOSE_NO_LOGGING Disable access/error logging + -DMONGOOSE_NO_THREADS + -DMONGOOSE_NO_WEBSOCKET Disable WebSocket support + -DMONGOOSE_NO_USER No concept of a user on used platform. + (Platform does not provide getpwnam, setgid or setuid) + + -DMONGOOSE_USE_IDLE_TIMEOUT_SECONDS=X Idle connection timeout, default is 30 + -DMONGOOSE_USE_LUA Enable Lua scripting + -DMONGOOSE_USE_LUA_SQLITE3 Enable sqlite3 binding for Lua + -DMONGOOSE_USE_POST_SIZE_LIMIT=X POST requests larger than X will be + rejected, not set by default + -DMONGOOSE_USE_EXTRA_HTTP_HEADERS=X Append X to the HTTP headers + for static files, empty by default + + -DNS_ENABLE_DEBUG Enables debug messages on stdout, very noisy + -DNS_ENABLE_SSL Enable SSL + -DNS_ENABLE_IPV6 Enable IPv6 support + -DNS_ENABLE_HEXDUMP Enables hexdump of sent and received traffic + -DNS_STACK_SIZE=X Sets stack size to X for ns_start_thread() + -DNS_DISABLE_THREADS Disable threads support + -DNS_DISABLE_SOCKETPAIR For systems without loopback interface + -DMONGOOSE_SEND_NS_EVENTS Send Net Skeleton events to the event handler + in addition to the Mongoose events diff --git a/3rdparty/mongoose/docs/FAQ.md b/3rdparty/mongoose/docs/FAQ.md new file mode 100644 index 00000000000..5648f5a1242 --- /dev/null +++ b/3rdparty/mongoose/docs/FAQ.md @@ -0,0 +1,45 @@ +# Mongoose FAQ + +## My Antivirus Software reports Mongoose as a security threat + +Mongoose doesn't contain any malicious logic. Antivirus reports a +[false positive](http://en.wikipedia.org/wiki/Type_I_and_type_II_errors#False_positive_error). +This is when certain byte sequence in Mongoose accidentally matches +virus signature in the Antivirus database. + +## Download page doesn't work + +Please make sure Javascript is enabled in your browser, and that the +antivirus software is not blocking the download. + + +## MacOS message: "Mongoose.app is damaged and can’t be opened. You should move it to the Trash" + +This happens on newer MacOS systems. The reason for the message +is the fact Mongoose.app is not digitally signed. +Mongoose download procedure changes the app on the fly by injecting +user information in the binary, making any prior digital signature void. +Open "System Preferences" -> "Security" and set "Allow apps downloaded from" +to "Anywhere". Revert the settings once Mongoose is installed. + +## PHP doesn't work: getting empty page, or 'File not found' error + +The reason for that is wrong paths to the interpreter. Remember that with PHP, +correct interpreter is `php-cgi.exe` (`php-cgi` on UNIX). Solution: specify +full path to the PHP interpreter, e.g.: + + mongoose -cgi_interpreter /full/path/to/php-cgi + +## Mongoose fails to start + +If Mongoose exits immediately when run, this +usually indicates a syntax error in the configuration file +(named `mongoose.conf` by default) or the command-line arguments. +Syntax checking is omitted from Mongoose to keep its size low. However, +the Manual should be of help. Note: the syntax changes from time to time, +so updating the config file might be necessary after executable update. + +### Embedding with OpenSSL on Windows might fail because of calling convention + +To force Mongoose to use `__stdcall` convention, add `/Gz` compilation +flag to the Visual Studio project settings. diff --git a/3rdparty/mongoose/docs/FileSharing.md b/3rdparty/mongoose/docs/FileSharing.md new file mode 100644 index 00000000000..e21750a2e65 --- /dev/null +++ b/3rdparty/mongoose/docs/FileSharing.md @@ -0,0 +1,18 @@ +How To Share Files With Mongoose +=========================================== + +## 1. Download Mongoose executable from http://cesanta.com/mongoose.shtml and copy the executable inside the directory you want to share: + +![screenshot](http://cesanta.com/images/tut_sharing/tut1.png) + +## 2. Double-click mongoose executable. A browser will start automatically, an icon will appear on a system tray in the bottom right corner of the desktop: + +![screenshot](http://cesanta.com/images/tut_sharing/tut2.png) + +## 3. Click on the mongoose icon +![screenshot](http://cesanta.com/images/tut_sharing/tut3.png) + + +## 4. Click on "Go to my address" to launch a browser locally. Or, to access a folder from another machine, launch a browser and type in the URL: + +![screenshot](http://cesanta.com/images/tut_sharing/tut4.png) diff --git a/3rdparty/mongoose/docs/Internals.md b/3rdparty/mongoose/docs/Internals.md new file mode 100644 index 00000000000..2ecde5c849a --- /dev/null +++ b/3rdparty/mongoose/docs/Internals.md @@ -0,0 +1,44 @@ +# Mongoose Internals + +Mongoose has single-threaded, event-driven, asynchronous, non-blocking core. +`mg_create_server()` creates a web server instance. An instance is a container +for the config options and list of active connections. To do the actual +serving, user must call `mg_poll_server()`, which iterates over all +active connections, performing `select()` syscall on all sockets with a +timeout of specified number of milliseconds. When `select()` returns, Mongoose +does an IO for each socket that has data to be sent or received. Application +code must call `mg_poll_server()` in a loop. + +Mongoose server instance is designed to be used by a single thread. +It is an error to have more then +one thread calling `mg_poll_server()`, `mg_set_option()` or any other function +that take `struct mg_server *` parameter. Mongoose does not +mutex-protect `struct mg_server *`, therefore the best practice is +to call server management functions from the same thread (an IO thread). +On a multi-core systems, many server instances can be created, sharing the +same listening socket and managed by separate threads (see [multi_threaded.c](https://github.com/cesanta/mongoose/blob/master/examples/multi_threaded.c)) +example. + +It is an error to pass and store `struct mg_connection *` pointers for +later use to send data. The reason is that they can be invalidated by the +next `mg_poll_server()` call. For such a task, +there is `mg_iterate_over_connections()` API +exists, which sends a callback function to the IO thread, then IO thread +calls specified function for all active connection. + +When mongoose buffers in HTTP request and successfully parses it, it calls +appropriate URI handler immediately for GET requests. For POST requests, +Mongoose delays the call until the whole POST request is buffered in memory. +POST data is available to the callback as `struct mg_connection::content`, +and POST data length is in `struct mg_connection::content_len`. + +Note that websocket connections are treated the same way. Mongoose buffers +websocket frame in memory, and calls URI handler when frame is fully +buffered. Frame data is available `struct mg_connection::content`, and +data length is in `struct mg_connection::content_len`, i.e. very similar to +the POST request. `struct mg_connection::is_websocket` flag indicates +whether the request is websocket or not. Also, for websocket requests, +there is `struct mg_connection::wsbits` field which contains first byte +of the websocket frame which URI handler can examine. Note that to +reply to the websocket client, `mg_websocket_write()` should be used. +To reply to the plain HTTP client, `mg_write()` should be used. diff --git a/3rdparty/mongoose/docs/LuaSqlite.md b/3rdparty/mongoose/docs/LuaSqlite.md new file mode 100644 index 00000000000..18e160a3d47 --- /dev/null +++ b/3rdparty/mongoose/docs/LuaSqlite.md @@ -0,0 +1,51 @@ +# Mongoose Lua Server Pages + +Pre-built Windows and Mac mongoose binaries support Lua Server Pages +functionality. +That means it is possible to write PHP-like scripts with mongoose +using Lua programming language instead of PHP. Lua is known +for it's speed and small size. Mongoose uses Lua version 5.2.3, the +documentation for it can be found at +[Lua 5.2 reference manual](http://www.lua.org/manual/5.2/). + +To create a Lua Page, make a file that is called `ANY_NAME.lp`. For example, +`my_page.lp`. It is important to have a file +name that ends up with `.lp`, cause this is the way mongoose recognises +Lua Page file. The contents of the file, just like +with PHP, is HTML with embedded Lua code. Lua code must be enclosed within +`<? ?>` blocks, and can appear anywhere on the page. + +Mongoose does not send HTTP headers for Lua pages. Therefore, +every Lua Page must begin with HTTP status line and headers, like this: + + + + Today is: + + +Note that this example uses function `mg.write()`, which prints data to the +web page. Using function `mg.write()` is the way to generate web content from +inside Lua code. In addition to `mg.write()`, all standard library functions +are accessible from the Lua code (please check reference manual for details). +Information about the request is available via the `mg.request_info` object. +I contains request method, all headers, etcetera. Please refer to +`struct mg_request_info` definition in +[mongoose.h](https://github.com/cesanta/mongoose/blob/master/mongoose.h) +to see what is available via the `mg.request_info` object. +Check out [prime_numbers.lp](https://github.com/cesanta/mongoose/blob/master/examples/lua/prime_numbers.lp) for some example. + +Mongoose exports the following to the Lua Server Page: + + mg.write(str) -- writes string to the client + mg.onerror(msg) -- error handler, can be overridden + mg.request_info -- a table with request information + +Using Lua scripting it is easy to emulate SSI functionality. For example, +to include the content of another file, one can write: + + + +To serve a Lua Page, mongoose creates Lua context. That context is used for +all Lua blocks within the page. That means, all Lua blocks on the same page +share the same context. If one block defines a variable, for example, that +variable is visible in all following blocks. diff --git a/3rdparty/mongoose/docs/Options.md b/3rdparty/mongoose/docs/Options.md new file mode 100644 index 00000000000..116c61fb9e4 --- /dev/null +++ b/3rdparty/mongoose/docs/Options.md @@ -0,0 +1,154 @@ +# Mongoose Configuration Options + +### access\_control\_list +An Access Control List (ACL) allows restrictions to be put on the list of IP +addresses which have access to the web server. In the case of the Mongoose +web server, the ACL is a comma separated list of IP subnets, where each +subnet is prepended by either a `-` or a `+` sign. A plus sign means allow, +where a minus sign means deny. If a subnet mask is omitted, such as `-1.2.3.4`, +this means to deny only that single IP address. + +Subnet masks may vary from 0 to 32, inclusive. The default setting is to allow +all accesses. On each request the full list is traversed, and +the last match wins. Example: `$ mongoose -access_control_list -0.0.0.0/0,+192.168/16` to deny all acccesses except those from `192.168/16` subnet. Note that if the option is set, then all accesses are forbidden +by default. Thus in a previous example, `-0.0.0.0` part is not necessary. +For example, `$mongoose access_control_list +10.0.0.0/8` +means disallow all, allow subnet 10/8 only. + +To learn more about subnet masks, see the +[Wikipedia page on Subnetwork](http://en.wikipedia.org/wiki/Subnetwork) + +Default: not set, all accesses are allowed. + +### access\_log\_file +Path to a file for access logs. Either full path, or relative to the +mongoose executable. Default: not set, no query logging is done. + +### auth_domain +Authorization realm used in `.htpasswd` authorization. Default: `mydomain.com` + +### cgi_interpreter +Path to an executable to be used use as an interpreter for __all__ CGI scripts +regardless script extension. Default: not set, Mongoose looks at +[shebang line](http://en.wikipedia.org/wiki/Shebang_(Unix\). + +For example, if both PHP and perl CGIs are used, then +`#!/path/to/php-cgi.exe` and `#!/path/to/perl.exe` must be first lines of the +respective CGI scripts. Note that paths should be either full file paths, +or file paths relative to the directory where mongoose executable is located. + +If all CGIs use the same interpreter, for example they are all PHP, then +`cgi_interpreter` option can be set to the path to `php-cgi.exe` executable and +shebang line in the CGI scripts can be omitted. +**Note**: PHP scripts must use `php-cgi.exe`, not `php.exe`. + +### cgi_pattern +All files that match `cgi_pattern` are treated as CGI files. Default pattern +allows CGI files be anywhere. To restrict CGIs to a certain directory, +use `/path/to/cgi-bin/**.cgi` as a pattern. Note that **full file path** is +matched against the pattern, not the URI. + +When Mongoose starts CGI program, it creates new environment for it (in +contrast, usually child program inherits the environment from parent). Several +environment variables however are inherited from Mongoose's environment, +they are: `PATH`, `TMP`, `TEMP`, `TMPDIR`, `PERLLIB`, `MONGOOSE_CGI`. On UNIX +it is also `LD_LIBRARY_PATH`. On Windows it is also `COMSPEC`, `SYSTEMROOT`, +`SystemDrive`, `ProgramFiles`, `ProgramFiles(x86)`, `CommonProgramFiles(x86)`. + +Default: `**.cgi$|**.pl$|**.php$` + +### dav\_auth\_file +Authentication file for WebDAV mutation requests: `PUT`, `DELETE`, `MKCOL`. +The format of that file is the same as for the `.htpasswd` file +used for digest authentication. It can be created and managed by +`mongoose -A` command. Default: not set, WebDAV mutations are disallowed. + +### document_root +A directory to serve. Default: current working directory. + +### enable\_directory\_listing +Enable directory listing, either `yes` or `no`. Default: `yes`. + +### enable\_proxy +Enable proxy functionality, either `yes` or `no`. If set to `yes`, then +browsers can be configured to use Mongoose as a proxy. Default: `no`. + + +### extra\_mime\_types +Extra mime types to recognize, in form `extension1=type1,extension2=type2,...`. +Extension must include dot. Example: +`mongoose -extra_mime_types .cpp=plain/text,.java=plain/text`. Default: not set. + + +### global\_auth\_file +Path to a global passwords file, either full path or relative to the mongoose +executable. If set, per-directory `.htpasswd` files are ignored, +and all requests are authorised against that file. Use `mongoose -A` to +manage passwords, or third party utilities like +[htpasswd-generator](http://www.askapache.com/online-tools/htpasswd-generator). +Default: not set, per-directory `.htpasswd` files are respected. + +### hide\_files\_patterns +A pattern for the files to hide. Files that match the pattern will not +show up in directory listing and return `404 Not Found` if requested. Pattern +must be for a file name only, not including directory name, e.g. +`mongoose -hide_files_patterns secret.txt|even_more_secret.txt`. Default: +not set. + +### index_files +Comma-separated list of files to be treated as directory index +files. Default: `index.html,index.htm,index.cgi,index.shtml,index.php` + +### listening_port +Port to listen on. Port could be prepended by the specific IP address to bind +to, e.g. `mongoose -listening_port 127.0.0.1:8080`. Otherwise Mongoose +will bind to all addresses. To enable SSL, build Mongoose with +`-DNS_ENABLE_SSL` compilation option, and specify `listening_port` as +`ssl://PORT:SSL_CERTIFICATE.PEM`. Example SSL listener: +`mongoose -listening_port ssl://8043:ssl_cert.pem`. Note that PEM file should +be in PEM format, and must have both certificate and private key in it, +concatenated together. More than one listening port can be specified, +separated by comma, +for example `mongoose -listening_port 8080,8000`. Default: 8080. + +### run\_as\_user +Switch to given user credentials after startup. UNIX-only. This option is +required when mongoose needs to bind on privileged port on UNIX, e.g. + + $ sudo mongoose -listening_port 80 -run_as_user nobody + +Default: not set. + +### url\_rewrites +Comma-separated list of URL rewrites in the form of +`uri_pattern=file_or_directory_path`. When Mongoose receives the request, +it constructs the file name to show by combining `document_root` and the URI. +However, if the rewrite option is used and `uri_pattern` matches the +requested URI, then `document_root` is ignored. Instead, +`file_or_directory_path` is used, which should be a full path name or +a path relative to the web server's current working directory. Note that +`uri_pattern`, as all mongoose patterns, is a prefix pattern. If `uri_pattern` +is a number, then it is treated as HTTP error code, and `file_or_directory_path` +should be an URI to redirect to. Mongoose will issue `302` temporary redirect +to the specified URI with following parameters: +`?code=HTTP_ERROR_CODE&orig_uri=ORIGINAL_URI&query_string=QUERY_STRING`. + +If `uri_pattern` starts with `@` symbol, then Mongoose compares +it with the `HOST` header of the request. If they are equal, Mongoose sets +document root to `file_or_directory_path`, implementing virtual hosts support. + +Examples: + + # Redirect all accesses to `.doc` files to a special script + mongoose -url_rewrites **.doc$=/path/to/cgi-bin/handle_doc.cgi + + # Implement user home directories support + mongoose -url_rewrites /~joe/=/home/joe/,/~bill=/home/bill/ + + # Redirect 404 errors to a specific error page + mongoose -url_rewrites 404=/cgi-bin/error.cgi + + # Virtual hosts example: serve foo.com domain from different directory + mongoose -url_rewrites @foo.com=/var/www/foo.com + +Default: not set. diff --git a/3rdparty/mongoose/docs/PhpWebsite.md b/3rdparty/mongoose/docs/PhpWebsite.md new file mode 100644 index 00000000000..3b503c64c2a --- /dev/null +++ b/3rdparty/mongoose/docs/PhpWebsite.md @@ -0,0 +1,49 @@ +How To Create A PHP Website With Mongoose +=========================================== + +## 1. Create a directory which will contain your website files. For example, on drive `C:\`, create a directory called `my_website`: + +![screenshot](http://cesanta.com/images/tut_php/tut1.png) + +## 2. Inside `my_website` directory, create a new file called "index". This will be the default web page shown when the website is visited. + +![screenshot](http://cesanta.com/images/tut_php/tut2.png) + +## 3. Open index file with your favorite editor (for example, Notepad) and enter some HTML / PHP code: + +![screenshot](http://cesanta.com/images/tut_php/tut3.png) + +## 4. Save this file as `index.php`: + +![screenshot](http://cesanta.com/images/tut_php/tut4.png) + + +## 5. Download Mongoose executable from http://cesanta.com/mongoose.shtml and copy the executable inside `my_website` directory: + +![screenshot](http://cesanta.com/images/tut_php/tut5.png) + +## 6. Double-click mongoose executable. An icon will appear on a system tray in the bottom right corner of the desktop: + +![screenshot](http://cesanta.com/images/tut_php/tut6.png) + +## 7. Download PHP 5.3 zip (do NOT download PHP 5.5 cause you might have missing DLLs problem) from http://windows.php.net/download and extract it to `C:\php5` directory: +![screenshot](http://cesanta.com/images/tut_php/tut7.png) + +## 8. Click on the mongoose icon and choose "Edit Settings" menu.: +![screenshot](http://cesanta.com/images/tut_php/tut8.png) + +## 9. A settings dialog will appear. Click on `cgi_interpreter` button: + +![screenshot](http://cesanta.com/images/tut_php/tut9.png) + +## 10. Choose `C:\php5\php-cgi.exe` and click "Save Settings": + +![screenshot](http://cesanta.com/images/tut_php/tut10.png) + +## 11. Click on the mongoose icon and choose "Go to my address" menu: +![screenshot](http://cesanta.com/images/tut_php/tut11.png) + + +## 12. A browser will popup displaying `index.php`. + +![screenshot](http://cesanta.com/images/tut_php/tut12.png) diff --git a/3rdparty/mongoose/docs/ReleaseNotes.md b/3rdparty/mongoose/docs/ReleaseNotes.md new file mode 100644 index 00000000000..2b45b99a466 --- /dev/null +++ b/3rdparty/mongoose/docs/ReleaseNotes.md @@ -0,0 +1,193 @@ +# Mongoose Release Notes + +## Release 5.5, October 28 2014 + +Changes in Libmongoose library: + +- Added new API function: `mg_forward()` for proxying functionality +- Added new API function: `mg_send_file_data()` for sending file data +- Added new utility API functions: `mg_mmap() and mg_munmap()` +- Changed the way SSL settings are handled: removed `ssl_certificate` and + `ssl_ca_certificate` options, and instead made `listening_port` accept + `ssl://PORT:SSL_CERT:CA_CERT` notation +- Added ability to listen on multiple ports, see `listening_port` documentation +- Added `enable_proxy` option +- Added [cookie_authentication](https://github.com/cesanta/mongoose/tree/master/examples/cookie_authentication) example +- Added [websocket\_ssl\_proxy](https://github.com/cesanta/mongoose/tree/master/examples/websocket_ssl_proxy) example +- Added [http_client](https://github.com/cesanta/mongoose/tree/master/examples/http_client) example +- Increased default 'idle connection' timeout from 30 to 300 seconds +- Fixed MinGW build +- Refactored all examples, put each in it's own directory with dedicated build +- Many smaller bugfixed, including SSL, CGI, API, proxy, etc + +Changes in pre-compiled binaries: + +- Support for multiple listening ports +- Fixed CGI handling for scripts that specify interpreter in the hashbang line + +## Release 5.4, July 28 2014 + +Changes in Libmongoose library: + +- Added `hexdump_file` option for low-level request/reply debugging +- Added `mg_template()` API function for generating HTML pages from + templates with expansions +- Fixed `struct mg_connection::local_ip` handling, `mg_set_option()` + behavior with NULL values +- Added `mg_send_file()` call to send arbitrary file to the client +- Added `mg_terminate_ssl()` for SSL termination functionality +- Added HTTP proxy support, `enable_proxy` config option +- Added `mg_next()` for iterating over existing active connections +- Added client-side SSL auth, `ssl_ca_certificate` option +- Added `mg_wakeup_server_ex()` for pushing messages to existing connections +- Added `MG_WS_HANDSHAKE` and `MG_WS_CONNECT` events that are sent on + Websocket handshake is connection establishment, respectively +- Removed server-side Lua support +- Filesystem access, reading from socket/SSL performance improvements +- DAV PROPFIND memory leak fixed +- Added `big_upload.c` and enhanced `upload.c` example +- Added `proxy.c` example that demonstrates proxy functionality and SSE pushes +- Added `websocket2.c` example that shows simple web chat implementation + over websockets +- Various minor fixes + + +Changes in pre-compiled binaries: + +- Created HTML administration console +- When server is started, browser is started automatically +- Fixed directory listing bug when directory contains `#` character +- Removed built-in Lua Server Pages in the binary, and instead + added Mongoose + Lua developer bundle which has Lua Server Pages support. + That also solves external Lua modules loading problem. + + +## Release 5.3, March 10 2014 + +Changes in Libmongoose library: + + * Moved to the evented API. Updated API documentation is at + http://cesanta.com/docs/Embed.shtml + http://cesanta.com/docs/API.shtml + * Added `MG_LUA` event for exporting custom variables to the Lua environment + * Added virtual hosts capability, see `url_rewrites` option description at + http://cesanta.com/docs/Options.shtml + * Added mjpg serving example + * Cleaned up and documented HTTP client API, with unit tests + * Added `mg_wakeup_server()` to awaken `mg_poll_server()` + from another thread + * Moved Mongoose IO core to [https://github.com/cesanta/net_skeleton](Net Skeleton) + * Added connection hexdump functionality for developers + * Bug fixes + +Changes in pre-compiled binaries: + + * New awesome Mongoose logos by our designer Katrin - thanks Katrin! + Check them out at http://cesanta.com/products.shtml + * Added Lua Server Pages support to the free version, quick intro is at + http://cesanta.com/docs/Lua.shtml + * Added quick "Set shared directory" menu item to set `document_root` + * Added SSI support to the Pro version + * Removed SSL support from the Pro version + +## Release 5.2, Feb 1 2014 + + * Windows binary made fully UNICODE aware. In previous versions, + the presence of non-ASCII chars in document root, CGI script name, + or directory name might have broken Mongoose as stand-alone + or as Windows service. Now Mongoose works with non-ASCII paths properly. + Internally, Mongoose uses UTF8 encoding. When making WinAPI calls, + mongoose converts UTF8 strings to wide chars and calls UNICODE API. + * Enhanced authorization API by providing `mg_set_auth_handler()` and + `mg_authorize_digest()` + * Removed `mg_add_uri_handler()`, added `mg_set_request_handler()`. + There is only oneURI handler that handles all requests, just like in 4.x. + The reason for this change is to provide an ability to catch all URIs, + and at the same time signal Mongoose to continue handling specific URIs. + * Added `mg_parse_multipart()` API for file uploads. + Note that the restriction on uploading huge files still exists, + and will be eliminated in the next release. + * Allowing mongoose to bind to port 0, in which case it'll bind to any + random unused port. + * Moved `idle_timeout_ms` run-time option to compile-time flag + * Added asynchronous HTTP client, not documented yet. Documentation and + examples are coming in the next couple of weeks. Async Websocket client + is scheduled for the next release. See usage examples at `unit_test.c` + * Windows and MacOS pre-built binaries are now split to free and paid ones, + paid binaries include CGI, SSL, Lua, Sqlite, support and updates. + Linux pre-built binary includes all functionality and is free, and will + continue to be free. Source code for Windows and MacOS GUI is closed. + Disclaimer: source code for the command line stand-alone server, + as well as Mongoose library itself, will never be closed. + * Multiple bug fixes and minor enhancements + +## Release 5.1, Jan 10 2014 + + * CGI-related bugs where fixed, primarily for Windows platform + * Bugs on Windows related to UNICODE support were fixed + * Added a feature to support "error pages" through redirect. + Done using `-url_redirects` option, details are on + http://cesanta.com/docs/Options.shtml + +## Release 5.0, Jan 6 2014 + + * Internal core has been changed from blocking, thread-per-connection to + non-blocking, asynchronous, one thread for all. + * API modification for server creation and response creation. That allowed + keep-alive support for dynamic requests, boosting the embedded performance + to 100+ thousands requests per second on a single core + (as measured on my development MacBook laptop) + * Unified handling of POST requests and Websocket requests by putting a + payload into `conn->content`, `conn->content_len` attributes. + That simplified user code and eliminated the need of `mg_read()`, + since mongoose buffers all data prior to calling the callback + * keep-alive support is the default + * Dropped SSI support and throttling support + * Several configuraition parameters are gone: + * `cgi_environment` (replaced with MONGOOSE_CGI), + * `protect_uri` (not useful) + * `ssi_pattern` (SSI support is gone) + * `throttle` (throttling support is gone) + * `error_log_file` (not used) + * `enable_keep_alive` (enabled by default) + * `listening_ports` (renamed to listening_port) + * `num_threads` (core has changed to single thread) + * `put_delete_auth_file` (renamed to dav_auth_file) + * `authentication_domain` (renamed to auth_domain) + * Due to the async, non-blocking nature of the core, few restrictions + are now in place: + * user callbacks must not block + * POST and Websocket data are now buffered, and cannot be huge + * mongoose is now capable on listening on only one port + +## Release 4.1, Oct 2013 +## Release 4.0, Oct 2013 +## Release 3.8, Sep 2013 + +## Release 3.7, Feb 2 2013 + + * Added "redirect to SSL port" functionality, e.g. if you specify + `-listening_ports 8080r,8043s` + then all requests to HTTP port 8080 will be redirected to HTTPS port 8043 + * Added `mg_download()` API, an HTTP client interface! + * Lua server pages now must output HTTP headers -- full control for Lua + * Added pre-built binary for MacOS, with initial GUI support + * API change: got rid of events, moved to struct `mg_callbacks` + * Bugfixes, thanks to contributors + + +## Release 3.7, Jan 18 2013 + * Fixed source code archive (main.c was missing) + * Extended Windows GUI functionality: + * Added "Start browser" systray popup menu item + * Enhanced configuration editor + * Renamed config options: + * `put_delete_passwords_file` -> `put_delete_auth_file` + * `global_passwords_file` -> `global_auth_file` + * `select()` changed to `poll()`, to avoid big file descriptor + `FD_SET` problem on UNIX + * Couple of bugfixes, thanks to contributors + + +Eearlier release notes could be found by searching +[Mongoose mailing list](https://groups.google.com/forum/#!forum/mongoose-users) diff --git a/3rdparty/mongoose/docs/SSL.md b/3rdparty/mongoose/docs/SSL.md new file mode 100644 index 00000000000..df9b005caaa --- /dev/null +++ b/3rdparty/mongoose/docs/SSL.md @@ -0,0 +1,75 @@ +# Mongoose SSL guide + +SSL is a protocol that makes web communication secure. To enable SSL +in mongoose, 3 steps are required: + + 1. Valid certificate file must be created + 2. `ssl_certificate` options must be set to contain path to the + certificate file. + 3. `listening_ports` option must contain a port number with letter `s` + appended to it, which instructs Mongoose to use SSL for all connections + made to that port. + +Below is the `mongoose.conf` file snippet for typical SSL setup: + + document_root www_root # Serve files in www_root directory + listening_ports 80r,443s # Redirect all HTTP requests to HTTPS + ssl_certificate ssl_cert.pem # Location of certificate file + +## How to create SSL certificate file + +SSL certificate file is a text file that must contain at least two +sections: + + 1. A private key + 2. A certificate + +Both sections should be chunks of text in PEM format. When PEM file is +opened in a text editor, it looks like this: + + -----BEGIN RSA PRIVATE KEY----- + MIIEogIBAAKCAQEAwONaLOP7EdegqjRuQKSDXzvHmFMZfBufjhELhNjo5KsL4ieH + hYN0Zii2yTb63jGxKY6gH1R/r9dL8kXaJmcZrfSa3AgywnteJWg= + -----END RSA PRIVATE KEY----- + -----BEGIN CERTIFICATE----- + MIIDBjCCAe4CCQCX05m0b053QzANBgkqhkiG9w0BAQQFADBFMQswCQYDVQQGEwJB + SEGI4JSxV56lYg== + -----END CERTIFICATE----- + +Two aforementioned sections are clearly seen. Typically, those section +are bigger then in the example shown. The text between the `BEGIN` and +`END` is the text representation of binary data, a private key and a +certificate. Therefore, in order to create a certificate file, + + * private key must be converted to PEM format + * certificate must be converted to PEM format + * those two should be concatenated into a single file + +If the certificate chain in used, a chain file also needs to be +converted into PEM format and appended to the certificate file. + +## How SSL works + +SSL is a protocol that can encrypt communication between two parties. If third +party observes all messages passed by, it would be very +hard for the third party (though not impossible) to decrypt the communication. + +The idea is based on so-called public key encryption. Communicating parties +have two keys: a public key and a private key. A public key is advertised +to everybody, and it is contained in a certificate. A private key is kept +secret. Security algorithm works in a way that anybody can encrypt +a message using public key, and only private key can decrypt it. + +This is why web server needs both private key and certificate: private key +is used to decrypt incoming messages, and certificate is used to tell the +public key to the other party. When communication starts, parties exchange +their public keys, and keep private keys to themselves. Man-in-the-middle +who observes the communication is unable to decrypt the messages cause +private keys are required for decryption. + +Encryption algorithms are built on top of hard mathematical problem, which +makes it very expensive for man-in-the-middle to compute private keys. +For example, RSA algorithm is based on a mathematical problem of factorization. +It is easy to generate two very large prime numbers `P` and `Q` and make +a product `P * Q`. But given a product, it is very hard to recover these +two prime numbers - this is called factorization. diff --git a/3rdparty/mongoose/docs/Usage.md b/3rdparty/mongoose/docs/Usage.md new file mode 100644 index 00000000000..b9f7052fa09 --- /dev/null +++ b/3rdparty/mongoose/docs/Usage.md @@ -0,0 +1,86 @@ +# Mongoose User Guide + +Mongoose is small and easy to use web server built on top of +mongoose library. It is designed with maximum simplicity in mind. For example, +to share any directory, just drop mongoose executable in that directory, +double-click it (on UNIX, run it from shell) and launch a browser at +[http://localhost:8080](http://localhost:8080) Note that 'localhost' should +be changed to a machine's name if a folder is accessed from other computer. + +On Windows and Mac, Mongoose iconifies itself to the system tray when started. +Right-click on the icon to pop up a menu, where it is possible to stop +mongoose, or configure it. + +On UNIX, `mongoose` is a command line utility. Running `mongoose` in +terminal, optionally followed by configuration parameters +(`mongoose [OPTIONS]`) or configuration file name +(`mongoose [config_file_name]`) starts the +web server: + + $ mongoose -document_root /var/www # Running mongoose with cmdline options + $ mongoose /etc/my_config.txt # Running mongoose with config file + $ mongoose # Running with no parameters. This will + # serve current directory on port 8080 + +Mongoose does not detach from terminal. Pressing `Ctrl-C` keys +stops the server. + +When started, mongoose first searches for the configuration file. +If configuration file is specified explicitly in the command line, then +specified configuration file is used. +Otherwise, mongoose would search for file `mongoose.conf` in the same directory +where binary is located, and use it. Configuration file can be absent. + +Configuration file is a sequence of lines, each line containing +command line argument name and it's value. Empty lines and lines beginning +with `#` are ignored. Here is the example of `mongoose.conf` file: + + # This is a comment + document_root C:\www + listening_port 80 + ssl_certificate C:\mongoose\ssl_cert.pem + +Command line arguments are highest priority and can override +configuration file settings. For example, if `mongoose.conf` has line +`document_root /var/www`, and mongoose has been started as +`mongoose -document_root /etc`, then `/etc` directory will be used as +document root. + +Note that configuration options on the command line must start with `-`, +and their names are the same as in the config file. Exampli gratia, +the following two setups are equivalent: + + $ mongoose -listening_port 1234 -document_root /var/www + + $ cat > mongoose.conf + listening_ports 1234 + document_root /var/www + ^D + $ mongoose + +Mongoose can also be used to modify `.htpasswd` passwords file: + + $ mongoose -A .htpasswd mydomain.com user_name user_password + +Unlike other web servers, mongoose does not require CGI scripts be located in +a special directory. CGI scripts can be anywhere. CGI (and SSI) files are +recognized by the file name pattern. Mongoose uses shell-like glob +patterns. Pattern match starts at the beginning of the string, so essentially +patterns are prefix patterns. Syntax is as follows: + + ** Matches everything + * Matches everything but slash character, '/' + ? Matches any character + $ Matches the end of the string + | Matches if pattern on the left side or the right side matches. + +All other characters in the pattern match themselves. Examples: + + # Pattern Meaning + **.cgi$ Any string that ends with .cgi + /foo Any string that begins with /foo + **a$|**b$ Any string that ends with a or b + +To restrict CGI files only to `/cgi-bin/` directory, use this setting: + + $ mongoose -cgi_pattern /cgi-bin/*.cgi # Emulate /cgi-bin/ restriction diff --git a/3rdparty/mongoose/examples/Makefile b/3rdparty/mongoose/examples/Makefile new file mode 100644 index 00000000000..2964d37e9fb --- /dev/null +++ b/3rdparty/mongoose/examples/Makefile @@ -0,0 +1,15 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +SUBDIRS = $(sort $(filter-out csharp/, $(dir $(wildcard */)))) +X = $(SUBDIRS) + +.PHONY: $(SUBDIRS) + +all: $(SUBDIRS) + +$(SUBDIRS): + @$(MAKE) -C $@ + +clean: + for d in $(SUBDIRS) ; do $(MAKE) -C $$d clean ; done \ No newline at end of file diff --git a/3rdparty/mongoose/examples/big_upload/Makefile b/3rdparty/mongoose/examples/big_upload/Makefile new file mode 100644 index 00000000000..a47d188489f --- /dev/null +++ b/3rdparty/mongoose/examples/big_upload/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = big_upload +CFLAGS = -W -Wall -pthread -I../.. -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/big_upload/big_upload.c b/3rdparty/mongoose/examples/big_upload/big_upload.c new file mode 100644 index 00000000000..a756ddd3a07 --- /dev/null +++ b/3rdparty/mongoose/examples/big_upload/big_upload.c @@ -0,0 +1,84 @@ +#include +#include +#include +#include "mongoose.h" + +static int handle_request(struct mg_connection *conn) { + if (strcmp(conn->uri, "/upload") == 0) { + FILE *fp = (FILE *) conn->connection_param; + if (fp != NULL) { + fwrite(conn->content, 1, conn->content_len, fp); // Write last bits + mg_printf(conn, "HTTP/1.1 200 OK\r\n" + "Content-Type: text/plain\r\n" + "Connection: close\r\n\r\n" + "Written %ld of POST data to a temp file:\n\n", + (long) ftell(fp)); + + // Temp file will be destroyed after fclose(), do something with the + // data here -- for example, parse it and extract uploaded files. + // As an example, we just echo the whole POST buffer back to the client. + rewind(fp); + mg_send_file_data(conn, fileno(fp)); + return MG_MORE; // Tell Mongoose reply is not completed yet + } else { + mg_printf_data(conn, "%s", "Had no data to write..."); + return MG_TRUE; // Tell Mongoose we're done with this request + } + } else { + mg_printf_data(conn, "%s", + "Upload example." + "
" + "
" + "" + "
"); + return MG_TRUE; // Tell mongoose to close this connection + } +} + +// Mongoose sends MG_RECV for every received POST chunk. +// When last POST chunk is received, Mongoose sends MG_REQUEST, then MG_CLOSE. +static int handle_recv(struct mg_connection *conn) { + FILE *fp = (FILE *) conn->connection_param; + + // Open temporary file where we going to write data + if (fp == NULL && ((conn->connection_param = fp = tmpfile())) == NULL) { + return -1; // Close connection on error + } + + // Return number of bytes written to a temporary file: that is how many + // bytes we want to discard from the receive buffer + return fwrite(conn->content, 1, conn->content_len, fp); +} + +// Make sure we free all allocated resources +static int handle_close(struct mg_connection *conn) { + if (conn->connection_param != NULL) { + fclose((FILE *) conn->connection_param); + conn->connection_param = NULL; + } + return MG_TRUE; +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + case MG_REQUEST: return handle_request(conn); + case MG_RECV: return handle_recv(conn); + case MG_CLOSE: return handle_close(conn); + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + + for (;;) { + mg_poll_server(server, 1000); + } + + mg_destroy_server(&server); + return 0; +} diff --git a/3rdparty/mongoose/examples/cookie_authentication/Makefile b/3rdparty/mongoose/examples/cookie_authentication/Makefile new file mode 100644 index 00000000000..1eb0652b961 --- /dev/null +++ b/3rdparty/mongoose/examples/cookie_authentication/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = cookie_auth +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/cookie_authentication/cookie_auth.c b/3rdparty/mongoose/examples/cookie_authentication/cookie_auth.c new file mode 100644 index 00000000000..f3621faeed7 --- /dev/null +++ b/3rdparty/mongoose/examples/cookie_authentication/cookie_auth.c @@ -0,0 +1,96 @@ +// Copyright (c) 2014 Cesanta Software +// All rights reserved + +#include +#include +#include +#include "mongoose.h" + +static const char *s_login_uri = "/login.html"; +static const char *s_secret = ":-)"; // Must be known only to server + +static void generate_ssid(const char *user_name, const char *expiration_date, + char *ssid, size_t ssid_size) { + char hash[33]; + mg_md5(hash, user_name, ":", expiration_date, ":", s_secret, NULL); + snprintf(ssid, ssid_size, "%s|%s|%s", user_name, expiration_date, hash); +} + +static int check_auth(struct mg_connection *conn) { + char ssid[100], calculated_ssid[100], name[100], expire[100]; + + // Always authenticate requests to login page + if (strcmp(conn->uri, s_login_uri) == 0) { + return MG_TRUE; + } + + // Look for session ID in the Cookie. + // That session ID can be validated against the database that stores + // current active sessions. + mg_parse_header(mg_get_header(conn, "Cookie"), "ssid", ssid, sizeof(ssid)); + if (sscanf(ssid, "%[^|]|%[^|]|", name, expire) == 2) { + generate_ssid(name, expire, calculated_ssid, sizeof(calculated_ssid)); + if (strcmp(ssid, calculated_ssid) == 0) { + return MG_TRUE; // Authenticate + } + } + + // Auth failed, do NOT authenticate, redirect to login page + mg_printf(conn, "HTTP/1.1 302 Moved\r\nLocation: %s\r\n\r\n", s_login_uri); + return MG_FALSE; +} + +static int check_login_form_submission(struct mg_connection *conn) { + char name[100], password[100], ssid[100], expire[100], expire_epoch[100]; + + mg_get_var(conn, "name", name, sizeof(name)); + mg_get_var(conn, "password", password, sizeof(password)); + + // A real authentication mechanism should be employed here. + // Also, the whole site should be served through HTTPS. + if (strcmp(name, "Joe") == 0 && strcmp(password, "Doe") == 0) { + // Generate expiry date + time_t t = time(NULL) + 3600; // Valid for 1 hour + snprintf(expire_epoch, sizeof(expire_epoch), "%lu", (unsigned long) t); + strftime(expire, sizeof(expire), "%a, %d %b %Y %H:%M:%S GMT", gmtime(&t)); + generate_ssid(name, expire_epoch, ssid, sizeof(ssid)); + // Set "session id" cookie, there could be some data encoded in it. + mg_printf(conn, + "HTTP/1.1 302 Moved\r\n" + "Set-Cookie: ssid=%s; expire=\"%s\"; http-only; HttpOnly;\r\n" + "Location: /\r\n\r\n", + ssid, expire); + return MG_TRUE; + } + return MG_FALSE; +} + +static int serve_request(struct mg_connection *conn) { + if (strcmp(conn->uri, s_login_uri) == 0 && + strcmp(conn->request_method, "POST") == 0) { + return check_login_form_submission(conn); + } + return MG_FALSE; // Serve files in the document_root +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return check_auth(conn); + case MG_REQUEST: return serve_request(conn); + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + mg_set_option(server, "document_root", "."); + + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/cookie_authentication/index.html b/3rdparty/mongoose/examples/cookie_authentication/index.html new file mode 100644 index 00000000000..fc992fd03de --- /dev/null +++ b/3rdparty/mongoose/examples/cookie_authentication/index.html @@ -0,0 +1,33 @@ + + + + + WebSocket Test + + + + +
+

Mongoose Cookie Base Authentication

+

This is an index page. Authentication succeeded.

+ + \ No newline at end of file diff --git a/3rdparty/mongoose/examples/cookie_authentication/login.html b/3rdparty/mongoose/examples/cookie_authentication/login.html new file mode 100644 index 00000000000..d3ff7056573 --- /dev/null +++ b/3rdparty/mongoose/examples/cookie_authentication/login.html @@ -0,0 +1,44 @@ + + + + + WebSocket Test + + + + +
+

Mongoose Cookie Based Authentication

+

Use name "Joe", password "Doe" to login.

+
+
+ + +
+ + +
+ +
+
+ + \ No newline at end of file diff --git a/3rdparty/mongoose/examples/csharp/example.cs b/3rdparty/mongoose/examples/csharp/example.cs new file mode 100644 index 00000000000..9736c6b991d --- /dev/null +++ b/3rdparty/mongoose/examples/csharp/example.cs @@ -0,0 +1,43 @@ +// This file is part of mongoose web server project, +// https://github.com/cesanta/mongoose + +using System; + +public class Program { + static private int EventHandler(IntPtr conn_ptr, int ev) { + MongooseConnection conn = (MongooseConnection) + System.Runtime.InteropServices.Marshal.PtrToStructure( + conn_ptr , typeof(MongooseConnection)); + + if (ev == 102) { + // MG_AUTH + return 1; + } else if (ev == 103) { + // MG_REQUEST + Mongoose.send_data(conn_ptr, "Hello from C#!\n"); + Mongoose.send_data(conn_ptr, "URI: " + conn.uri + "\n"); + Mongoose.send_data(conn_ptr, "HTTP Headers:\n"); + + for (int i = 0; i < conn.num_headers; i++) { + IntPtr name = conn.http_headers[i].name; + IntPtr val = conn.http_headers[i].value; + System.Runtime.InteropServices.Marshal.PtrToStringAnsi(name); + Mongoose.send_data(conn_ptr, " " + + System.Runtime.InteropServices.Marshal.PtrToStringAnsi(name) + ": " + + System.Runtime.InteropServices.Marshal.PtrToStringAnsi(val) + "\n"); + } + return 1; + } + return 0; + } + + static void Main() { + Mongoose web_server = new Mongoose(".", "9001", + new MongooseEventHandler(EventHandler)); + + Console.WriteLine("Mongoose started, press Ctrl-C to exit."); + for (;;) { + web_server.poll(1000); + } + } +} diff --git a/3rdparty/mongoose/examples/csharp/mongoose.cs b/3rdparty/mongoose/examples/csharp/mongoose.cs new file mode 100644 index 00000000000..f0953d22d58 --- /dev/null +++ b/3rdparty/mongoose/examples/csharp/mongoose.cs @@ -0,0 +1,68 @@ +// This file is part of mongoose web server project, +// https://github.com/cesanta/mongoose + +using System; +using System.Runtime.InteropServices; + +[StructLayout(LayoutKind.Sequential)] public struct MongooseHeader { + [MarshalAs(UnmanagedType.LPTStr)] public IntPtr name; + [MarshalAs(UnmanagedType.LPTStr)] public IntPtr value; +}; + +// mongoose.h :: struct mg_connection +[StructLayout(LayoutKind.Sequential)] public struct MongooseConnection { + [MarshalAs(UnmanagedType.LPTStr)] public string request_method; + [MarshalAs(UnmanagedType.LPTStr)] public string uri; + [MarshalAs(UnmanagedType.LPTStr)] public string http_version; + [MarshalAs(UnmanagedType.LPTStr)] public string query_string; + + [MarshalAs(UnmanagedType.ByValArray,SizeConst=48)] public char[] remote_ip; + [MarshalAs(UnmanagedType.LPTStr)] public string local_ip; + [MarshalAs(UnmanagedType.U2)] public short remote_port; + [MarshalAs(UnmanagedType.U2)] public short local_port; + + [MarshalAs(UnmanagedType.SysInt)] public int num_headers; + [MarshalAs(UnmanagedType.ByValArray,SizeConst=30)] + public MongooseHeader[] http_headers; + + [MarshalAs(UnmanagedType.LPTStr)] public IntPtr content; + [MarshalAs(UnmanagedType.SysInt)] public int content_len; + + [MarshalAs(UnmanagedType.SysInt)] public int is_websocket; + [MarshalAs(UnmanagedType.SysInt)] public int status_code; + [MarshalAs(UnmanagedType.SysInt)] public int wsbits; +}; + +public delegate int MongooseEventHandler(IntPtr c, int ev); + +public class Mongoose { + public const string dll_ = "mongoose"; + private IntPtr server_; + + [DllImport(dll_)] private static extern IntPtr + mg_create_server(IntPtr user_data, MongooseEventHandler eh); + [DllImport(dll_)] private static extern int + mg_poll_server(IntPtr server, int milli); + [DllImport(dll_)] private static extern IntPtr + mg_set_option(IntPtr server, string name, string value); + [DllImport(dll_)] public static extern int + mg_send_data(IntPtr conn, string data, int length); + + public Mongoose(string document_root, + string listening_port, + MongooseEventHandler event_handler) { + server_ = mg_create_server(IntPtr.Zero, event_handler); + mg_set_option(server_, "document_root", document_root); + mg_set_option(server_, "listening_port", listening_port); + } + + public static int send_data(IntPtr conn, string data) { + return mg_send_data(conn, data, data.Length); + } + + public void poll(int milli) { + mg_poll_server(server_, milli); + } + + // TODO: add destructor and call mg_destroy_server() +} diff --git a/3rdparty/mongoose/examples/digest_authentication/Makefile b/3rdparty/mongoose/examples/digest_authentication/Makefile new file mode 100644 index 00000000000..86cd30db1d7 --- /dev/null +++ b/3rdparty/mongoose/examples/digest_authentication/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = digest_auth +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/digest_authentication/digest_auth.c b/3rdparty/mongoose/examples/digest_authentication/digest_auth.c new file mode 100644 index 00000000000..18835c729c7 --- /dev/null +++ b/3rdparty/mongoose/examples/digest_authentication/digest_auth.c @@ -0,0 +1,36 @@ +#include +#include +#include "mongoose.h" + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + + if (ev == MG_AUTH) { + int result = MG_FALSE; // Not authorized + FILE *fp; + + // To populate passwords file, do + // mongoose -A my_passwords.txt mydomain.com admin admin + if ((fp = fopen("my_passwords.txt", "r")) != NULL) { + result = mg_authorize_digest(conn, fp); + fclose(fp); + } + + return result; + } + + return MG_FALSE; +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + mg_set_option(server, "document_root", "."); + + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/file_upload/Makefile b/3rdparty/mongoose/examples/file_upload/Makefile new file mode 100644 index 00000000000..bf1e51dfc90 --- /dev/null +++ b/3rdparty/mongoose/examples/file_upload/Makefile @@ -0,0 +1,20 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = file_upload +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +all: $(PROG) + +run: $(PROG) + ./$(PROG) + +$(PROG): $(SOURCES) Makefile + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +win: + wine cl $(SOURCES) /MD /nologo /DNDEBUG /O1 /I../.. /Fe$(PROG).exe + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib *.gc* diff --git a/3rdparty/mongoose/examples/file_upload/file_upload.c b/3rdparty/mongoose/examples/file_upload/file_upload.c new file mode 100644 index 00000000000..f0c6a1a4238 --- /dev/null +++ b/3rdparty/mongoose/examples/file_upload/file_upload.c @@ -0,0 +1,59 @@ +// Copyright (c) 2004-2012 Sergey Lyubka +// This file is a part of mongoose project, http://github.com/valenok/mongoose + +#include +#include +#include "mongoose.h" + +static int send_index_page(struct mg_connection *conn) { + const char *data; + int data_len, ofs = 0; + char var_name[100], file_name[100]; + + mg_printf_data(conn, "%s", + "Upload example." + "
" + "
" + "" + "
"); + + while ((ofs = mg_parse_multipart(conn->content + ofs, conn->content_len - ofs, + var_name, sizeof(var_name), + file_name, sizeof(file_name), + &data, &data_len)) > 0) { + mg_printf_data(conn, "var: %s, file_name: %s, size: %d bytes
", + var_name, file_name, data_len); + } + + mg_printf_data(conn, "%s", ""); + + return MG_TRUE; +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + case MG_REQUEST: return send_index_page(conn); + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server; + + // Create and configure the server + server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + + // Serve request. Hit Ctrl-C to terminate the program + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + + // Cleanup, and free server instance + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/form_submit/Makefile b/3rdparty/mongoose/examples/form_submit/Makefile new file mode 100644 index 00000000000..b233f285774 --- /dev/null +++ b/3rdparty/mongoose/examples/form_submit/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = form_submit +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/form_submit/form_submit.c b/3rdparty/mongoose/examples/form_submit/form_submit.c new file mode 100644 index 00000000000..f6893114d7f --- /dev/null +++ b/3rdparty/mongoose/examples/form_submit/form_submit.c @@ -0,0 +1,62 @@ +#include +#include +#include "mongoose.h" + +static const char *html_form = + "POST example." + "
" + "Input 1:
" + "Input 2:
" + "" + "
"; + +static void send_reply(struct mg_connection *conn) { + char var1[500], var2[500]; + + if (strcmp(conn->uri, "/handle_post_request") == 0) { + // User has submitted a form, show submitted data and a variable value + // Parse form data. var1 and var2 are guaranteed to be NUL-terminated + mg_get_var(conn, "input_1", var1, sizeof(var1)); + mg_get_var(conn, "input_2", var2, sizeof(var2)); + + // Send reply to the client, showing submitted form values. + // POST data is in conn->content, data length is in conn->content_len + mg_send_header(conn, "Content-Type", "text/plain"); + mg_printf_data(conn, + "Submitted data: [%.*s]\n" + "Submitted data length: %d bytes\n" + "input_1: [%s]\n" + "input_2: [%s]\n", + conn->content_len, conn->content, + conn->content_len, var1, var2); + } else { + // Show HTML form. + mg_send_data(conn, html_form, strlen(html_form)); + } +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + if (ev == MG_REQUEST) { + send_reply(conn); + return MG_TRUE; + } else if (ev == MG_AUTH) { + return MG_TRUE; + } else { + return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + + mg_set_option(server, "listening_port", "8080"); + + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/hello_world/Makefile b/3rdparty/mongoose/examples/hello_world/Makefile new file mode 100644 index 00000000000..d1384e01723 --- /dev/null +++ b/3rdparty/mongoose/examples/hello_world/Makefile @@ -0,0 +1,21 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = hello_world +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +all: $(PROG) + +run: $(PROG) + ./$(PROG) + +$(PROG): $(SOURCES) Makefile + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +win: + wine cl $(SOURCES) /MD /nologo /DNDEBUG /O1 /I../.. /Fe$(PROG).exe + wine $(PROG).exe + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib *.gc* diff --git a/3rdparty/mongoose/examples/hello_world/hello_world.c b/3rdparty/mongoose/examples/hello_world/hello_world.c new file mode 100644 index 00000000000..95056895d02 --- /dev/null +++ b/3rdparty/mongoose/examples/hello_world/hello_world.c @@ -0,0 +1,38 @@ +// Copyright (c) 2014 Cesanta Software +// All rights reserved +// +// This example demostrates basic use of Mongoose embedded web server. +// $Date: 2014-09-09 22:20:23 UTC $ + +#include +#include +#include "mongoose.h" + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + case MG_REQUEST: + mg_printf_data(conn, "Hello! Requested URI is [%s]", conn->uri); + return MG_TRUE; + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server; + + // Create and configure the server + server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + + // Serve request. Hit Ctrl-C to terminate the program + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + + // Cleanup, and free server instance + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/http_client/Makefile b/3rdparty/mongoose/examples/http_client/Makefile new file mode 100644 index 00000000000..422948ffd67 --- /dev/null +++ b/3rdparty/mongoose/examples/http_client/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = http_client +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +unix: $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/http_client/http_client.c b/3rdparty/mongoose/examples/http_client/http_client.c new file mode 100644 index 00000000000..41eac581e90 --- /dev/null +++ b/3rdparty/mongoose/examples/http_client/http_client.c @@ -0,0 +1,82 @@ +// Copyright (c) 2014 Cesanta Software +// All rights reserved +// +// This example demostrates how to connect to the remote Web server, +// download data, process it and send back a reply. + +#include +#include + +#include "mongoose.h" + +static int s_received_signal = 0; +static struct mg_server *s_server = NULL; +static const char *s_remote_addr = "glosbe.com:80"; + +static void signal_handler(int sig_num) { + signal(sig_num, signal_handler); + s_received_signal = sig_num; +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + struct mg_connection *client, *orig; + + switch (ev) { + case MG_AUTH: + return MG_TRUE; + + case MG_CONNECT: + // Send request to the remote host. + // TODO(lsm): handle connect error here. + mg_printf(conn, "GET %s HTTP/1.0\r\nHost: %s\r\n\r\n", + "/gapi/translate?from=eng&dest=fra&format=json&phrase=cat", + s_remote_addr); + return MG_TRUE; + + case MG_REPLY: + // Send reply to the original connection + orig = (struct mg_connection *) conn->connection_param; + mg_send_status(orig, conn->status_code); + mg_send_header(orig, "Content-Type", "text/plain"); + mg_send_data(orig, conn->content, conn->content_len); + mg_send_data(orig, "", 0); // Last chunk: mark the end of reply + + // Disconnect connections + orig->connection_param = NULL; + conn->connection_param = NULL; + return MG_TRUE; + + case MG_REQUEST: + if ((client = mg_connect(s_server, s_remote_addr)) != NULL) { + // Interconnect requests + client->connection_param = conn; + conn->connection_param = client; + return MG_MORE; + } else { + mg_printf_data(conn, "%s", "cannot send API request"); + return MG_TRUE; + } + + default: + return MG_FALSE; + } +} + +int main(void) { + s_server = mg_create_server(NULL, ev_handler); + + mg_set_option(s_server, "listening_port", "8080"); + + // Setup signal handlers + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + + printf("Listening on port %s\n", mg_get_option(s_server, "listening_port")); + while (s_received_signal == 0) { + mg_poll_server(s_server, 1000); + } + mg_destroy_server(&s_server); + printf("Existing on signal %d\n", s_received_signal); + + return EXIT_SUCCESS; +} diff --git a/3rdparty/mongoose/examples/mjpg_streamer/Makefile b/3rdparty/mongoose/examples/mjpg_streamer/Makefile new file mode 100644 index 00000000000..35946c0a477 --- /dev/null +++ b/3rdparty/mongoose/examples/mjpg_streamer/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = mjpg_streamer +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/mjpg_streamer/mjpg_streamer.c b/3rdparty/mongoose/examples/mjpg_streamer/mjpg_streamer.c new file mode 100644 index 00000000000..4bac6c14838 --- /dev/null +++ b/3rdparty/mongoose/examples/mjpg_streamer/mjpg_streamer.c @@ -0,0 +1,105 @@ +#include +#include +#include +#include +#include +#include "mongoose.h" + +static void send_file(struct mg_connection *conn, const char *path) { + char buf[1024]; + struct stat st; + int n; + FILE *fp; + + if (stat(path, &st) == 0 && (fp = fopen(path, "rb")) != NULL) { + mg_printf(conn, "--w00t\r\nContent-Type: image/jpeg\r\n" + "Content-Length: %lu\r\n\r\n", (unsigned long) st.st_size); + while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) { + mg_write(conn, buf, n); + } + fclose(fp); + mg_write(conn, "\r\n", 2); + } +} + +struct conn_state { + int file_index; + time_t last_poll; +}; + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + const char **file_names = (const char **) conn->server_param; + struct conn_state *state; + time_t now = time(NULL); + + switch (ev) { + + case MG_AUTH: + return MG_TRUE; + + case MG_REQUEST: + if (strcmp(conn->uri, "/stream") != 0) { + mg_send_header(conn, "Content-Type", "text/html"); + mg_printf_data(conn, "%s", + "Go to /stream for MJPG stream"); + return MG_TRUE; + } + + mg_printf(conn, "%s", + "HTTP/1.0 200 OK\r\n" "Cache-Control: no-cache\r\n" + "Pragma: no-cache\r\nExpires: Thu, 01 Dec 1994 16:00:00 GMT\r\n" + "Connection: close\r\nContent-Type: multipart/x-mixed-replace; " + "boundary=--w00t\r\n\r\n"); + + send_file(conn, file_names[0]); + + state = (struct conn_state *) malloc(sizeof(*state)); + conn->connection_param = state; + state->file_index = 1; // First file is already sent + state->last_poll = time(NULL); + return MG_MORE; + + case MG_POLL: + state = (struct conn_state *) conn->connection_param; + + if (state != NULL && now > state->last_poll) { + if (file_names[state->file_index] != NULL) { + send_file(conn, file_names[state->file_index]); + state->file_index++; + if (file_names[state->file_index] == NULL) { + return MG_TRUE; // No more images, close connection + } + } + state->last_poll = now; + } + return MG_FALSE; + + case MG_CLOSE: + free(conn->connection_param); + conn->connection_param = NULL; + return MG_FALSE; + + default: + return MG_FALSE; + } +} + +int main(int argc, char *argv[]) { + struct mg_server *server; + + if (argc < 3) { + printf("Usage: %s image1.jpg image2.jpg ...\n", argv[0]); + return 1; + } + + server = mg_create_server(&argv[1], ev_handler); + mg_set_option(server, "listening_port", "8080"); + + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/multi_threaded_server/Makefile b/3rdparty/mongoose/examples/multi_threaded_server/Makefile new file mode 100644 index 00000000000..b85aa97a8af --- /dev/null +++ b/3rdparty/mongoose/examples/multi_threaded_server/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = multi_threaded_server +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/multi_threaded_server/multi_threaded_server.c b/3rdparty/mongoose/examples/multi_threaded_server/multi_threaded_server.c new file mode 100644 index 00000000000..30af3f10807 --- /dev/null +++ b/3rdparty/mongoose/examples/multi_threaded_server/multi_threaded_server.c @@ -0,0 +1,40 @@ +#include "mongoose.h" + +// Start a browser and hit refresh couple of times. The replies will +// come from both server instances. +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + if (ev == MG_REQUEST) { + mg_send_header(conn, "Content-Type", "text/plain"); + mg_printf_data(conn, "This is a reply from server instance # %s", + (char *) conn->server_param); + return MG_TRUE; + } else if (ev == MG_AUTH) { + return MG_TRUE; + } else { + return MG_FALSE; + } +} + +static void *serve(void *server) { + for (;;) mg_poll_server((struct mg_server *) server, 1000); + return NULL; +} + +int main(void) { + struct mg_server *server1, *server2; + + server1 = mg_create_server((void *) "1", ev_handler); + server2 = mg_create_server((void *) "2", ev_handler); + + // Make both server1 and server2 listen on the same sockets + mg_set_option(server1, "listening_port", "8080"); + mg_copy_listeners(server1, server2); + + // server1 goes to separate thread, server 2 runs in main thread. + // IMPORTANT: NEVER LET DIFFERENT THREADS HANDLE THE SAME SERVER. + mg_start_thread(serve, server1); + mg_start_thread(serve, server2); + getchar(); + + return 0; +} diff --git a/3rdparty/mongoose/examples/proxy_server/Makefile b/3rdparty/mongoose/examples/proxy_server/Makefile new file mode 100644 index 00000000000..214b8b6864e --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/Makefile @@ -0,0 +1,13 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = proxy_server +FLAGS = -I../.. -DNS_ENABLE_SSL +CFLAGS = -W -Wall -g -O0 -pthread -lssl $(FLAGS) $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +unix: $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/proxy_server/proxy_server.c b/3rdparty/mongoose/examples/proxy_server/proxy_server.c new file mode 100644 index 00000000000..cef0f24c9bb --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/proxy_server.c @@ -0,0 +1,202 @@ +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// To build and run this example: +// git clone https://github.com/cesanta/net_skeleton.git +// git clone https://github.com/cesanta/mongoose.git +// cd mongoose/examples +// make proxy +// ./proxy +// +// Configure your browser to use localhost:2014 as a proxy for all protocols +// Then, navigate to https://cesanta.com + +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#define sleep(x) Sleep((x) * 1000) +#else +#include +#endif + +#include "mongoose.h" + +static int s_received_signal = 0; +static struct mg_server *s_server = NULL; + +#define SSE_CONNECTION ((void *) 1) + +static void elog(int do_exit, const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + vfprintf(stderr, fmt, ap); + va_end(ap); + fputc('\n', stderr); + if (do_exit) exit(EXIT_FAILURE); +} + +static void signal_handler(int sig_num) { + signal(sig_num, signal_handler); + s_received_signal = sig_num; +} + +static int sse_push(struct mg_connection *conn, enum mg_event ev) { + if (ev == MG_POLL && conn->connection_param == SSE_CONNECTION) { + mg_printf(conn, "data: %s\r\n\r\n", (const char *) conn->callback_param); + } + return MG_TRUE; +} + +static void *sse_pusher_thread_func(void *param) { + while (s_received_signal == 0) { + mg_wakeup_server_ex(s_server, sse_push, "%lu %s", + (unsigned long) time(NULL), (const char *) param); + sleep(1); + } + return NULL; +} + +// Return: 1 if regular file, 2 if directory, 0 if not found +static int exists(const char *path) { + struct stat st; + return stat(path, &st) != 0 ? 0 : S_ISDIR(st.st_mode) == 0 ? 1 : 2; +} + +// Return: 1 if regular file, 2 if directory, 0 if not found +static int is_local_file(const char *uri, char *path, size_t path_len) { + snprintf(path, path_len, "%s/%s", + mg_get_option(s_server, "document_root"), uri); + return exists(path); +} + +static int try_to_serve_locally(struct mg_connection *conn) { + char path[500], buf[2000]; + int n, res; + FILE *fp = NULL; + + if ((res = is_local_file(conn->uri, path, sizeof(path))) == 2) { + strncat(path, "/index.html", sizeof(path) - strlen(path) - 1); + res = exists(path); + printf("PATH: [%s]\n", path); + } + if (res == 0) return MG_FALSE; + + if ((fp = fopen(path, "rb")) != NULL) { + printf("Serving [%s] locally \n", path); + mg_send_header(conn, "Connection", "close"); + mg_send_header(conn, "Content-Type", mg_get_mime_type(path, "text/plain")); + while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) { + mg_send_data(conn, buf, n); + } + mg_send_data(conn, "", 0); + fclose(fp); + } + return fp == NULL ? MG_FALSE : MG_TRUE; +} + +static int is_resource_present_locally(const char *uri) { + char path[500]; + return is_local_file(uri, path, sizeof(path)) || strcmp(uri, "/api/sse") == 0; +} + +static int proxy_event_handler(struct mg_connection *conn, enum mg_event ev) { + static const char target_url[] = "http://cesanta.com"; + static int target_url_size = sizeof(target_url) - 1; + const char *host; + + switch (ev) { + case MG_REQUEST: + host = mg_get_header(conn, "Host"); + printf("[%s] [%s] [%s]\n", conn->request_method, conn->uri, + host == NULL ? "" : host); + if (strstr(conn->uri, "/qqq") != NULL) s_received_signal = SIGTERM; + + // Proxied HTTPS requests use "CONNECT foo.com:443" + // Proxied HTTP requests use "GET http://..... " + // Serve requests for target_url from the local FS. + if (memcmp(conn->uri, target_url, target_url_size) == 0 && + is_resource_present_locally(conn->uri + target_url_size)) { + conn->uri += target_url_size; // Leave only path in the URI + } + + if (strcmp(conn->uri, "/api/sse") == 0) { + conn->connection_param = SSE_CONNECTION; + mg_printf(conn, "%s", "HTTP/1.0 200 OK\r\n" + "Content-Type: text/event-stream\r\n" + "Cache-Control: no-cache\r\n\r\n"); + return MG_MORE; + } + + if (host != NULL && strstr(host, "cesanta") != NULL) { + return try_to_serve_locally(conn); + } + + // Enable man-in-the-middle SSL mode for oracle.com + if (!strcmp(conn->request_method, "CONNECT") && + !strcmp(host, "oracle.com")) { + mg_terminate_ssl(conn, "ssl_cert.pem"); // MUST return MG_MORE after + return MG_MORE; + } + + return MG_FALSE; + case MG_AUTH: + return MG_TRUE; + default: + return MG_FALSE; + } +} + +static void setopt(struct mg_server *s, const char *opt, const char *val) { + const char *err_msg = mg_set_option(s, opt, val); + if (err_msg != NULL) { + elog(1, "Error setting [%s]: [%s]", opt, err_msg); + } +} + +int main(int argc, char *argv[]) { + const char *port = "2014", *dump = NULL, *root = "proxy_web_root"; + int i; + + // Parse command line options + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "-port") == 0 && i + 1 < argc) { + port = argv[++i]; + } else if (strcmp(argv[i], "-root") == 0 && i + 1 < argc) { + root = argv[++i]; + } else if (strcmp(argv[i], "-dump") == 0 && i + 1 < argc) { + dump = argv[++i]; + } else { + elog(1, "Usage: %s [-cert FILE] [-ca_cert FILE] [-port PORT]", argv[0]); + } + } + + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + + // Create and configure proxy server + s_server = mg_create_server(NULL, &proxy_event_handler); + setopt(s_server, "enable_proxy", "yes"); + setopt(s_server, "document_root", root); + setopt(s_server, "listening_port", port); + setopt(s_server, "hexdump_file", dump); + + // Start two SSE pushing threads + mg_start_thread(sse_pusher_thread_func, (void *) "sse_pusher_thread_1"); + mg_start_thread(sse_pusher_thread_func, (void *) "sse_pusher_thread_2"); + + // Start serving in the main thread + printf("Starting on port %s\n", mg_get_option(s_server, "listening_port")); + while (s_received_signal == 0) { + mg_poll_server(s_server, 1000); + } + printf("Existing on signal %d\n", s_received_signal); + mg_destroy_server(&s_server); + + return EXIT_SUCCESS; +} diff --git a/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app1/index.html b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app1/index.html new file mode 100644 index 00000000000..5b5c81677f2 --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app1/index.html @@ -0,0 +1,23 @@ + + + App1 Index + + + + +

App1 index page. Served locally from the the proxy server filesystem

+ +

image that references non-existent local resource. Forwarded to + the 'real' proxy target:

+ + +

Google logo via HTTPS (external resource, served by remote host):

+ + +

Same image via HTTP:

+ + + + diff --git a/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app2/index.html b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app2/index.html new file mode 100644 index 00000000000..28d4beadcdb --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/app2/index.html @@ -0,0 +1,37 @@ + + + App2 Index + + + + +

App2 index page. Served locally from the + the proxy's filesystem.

+

+ Following div shows proxy forwarding of websocket connection, served by + ws://echo.websocket.org: +

+ +
+ + diff --git a/3rdparty/mongoose/examples/proxy_server/proxy_web_root/index.html b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/index.html new file mode 100644 index 00000000000..d8343bf3b71 --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/proxy_web_root/index.html @@ -0,0 +1,29 @@ + + + proxy index + + + +

proxy index page.

+
    +
  • App1 - App1 root
    • +
  • App2 - App2 root
    • +
+ +

SSE pushes, done by separate threads at random times:

+
+ + + diff --git a/3rdparty/mongoose/examples/proxy_server/ssl_cert.pem b/3rdparty/mongoose/examples/proxy_server/ssl_cert.pem new file mode 100644 index 00000000000..e6045389a1a --- /dev/null +++ b/3rdparty/mongoose/examples/proxy_server/ssl_cert.pem @@ -0,0 +1,50 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEogIBAAKCAQEAwONaLOP7EdegqjRuQKSDXzvHmFMZfBufjhELhNjo5KsL4ieH +hMSGCcSV6y32hzhqR5lvTViaQez+xhc58NZRu+OUgEhodRBW/vAOjpz/xdMz5HaC +EhP3E9W1pkitVseS8B5rrgJo1BfCGai1fPav1nutPq2Kj7vMy24+g460Lonf6ln1 +di4aTIRtAqXtUU6RFpPJP35PkCXbTK65O8HJSxxt/XtfoezHCU5+UIwmZGYx46UB +Wzg3IfK6bGPSiHU3pdiTol0uMPt/GUK+x4NyZJ4/ImsNAicRwMBdja4ywHKXJehH +gXBthsVIHbL21x+4ibsg9eVM/XioTV6tW3IrdwIDAQABAoIBACFfdLutmkQFBcRN +HAJNNHmmsyr0vcUOVnXTFyYeDXV67qxrYHQlOHe6LqIpKq1Mon7O2kYMnWvooFAP +trOnsS6L+qaTYJdYg2TKjgo4ubw1hZXytyB/mdExuaMSkgMgtpia+tB5lD+V+LxN +x1DesZ+veFMO3Zluyckswt4qM5yVa04YFrt31H0E1rJfIen61lidXIKYmHHWuRxK +SadjFfbcqJ6P9ZF22BOkleg5Fm5NaxJmyQynOWaAkSZa5w1XySFfRjRfsbDr64G6 ++LSG8YtRuvfxnvUNhynVPHcpE40eiPo6v8Ho6yZKXpV5klCKciodXAORsswSoGJa +N3nnu/ECgYEA6Yb2rM3QUEPIALdL8f/OzZ1GBSdiQB2WSAxzl9pR/dLF2H+0pitS +to0830mk92ppVmRVD3JGxYDRZQ56tlFXyGaCzJBMRIcsotAhBoNbjV0i9n5bLJYf +BmjU9yvWcgsTt0tr3B0FrtYyp2tCvwHqlxvFpFdUCj2oRw2uGpkhmNkCgYEA03M6 +WxFhsix3y6eVCVvShfbLBSOqp8l0qiTEty+dgVQcWN4CO/5eyaZXKxlCG9KMmKxy +Yx+YgxZrDhfaZ0cxhHGPRKEAxM3IKwT2C8/wCaSiLWXZZpTifnSD99vtOt4wEfrG ++AghNd5kamFiM9tU0AyvhJc2vdJFuXrfeC7ntM8CgYBGDA+t4cZcbRhu7ow/OKYF +kulP3nJgHP/Y+LMrl3cEldZ2jEfZmCElVNQvfd2XwTl7injhOzvzPiKRF3jDez7D +g8w0JAxceddvttJRK9GoY4l7OoeKpjUELSnEQkf+yUfOsTbXPXVY7jMfeNL6jE6b +qN7t3qv8rmXtejMBE3G6cQKBgGR5W2BMiRSlxqKx1cKlrApV87BUe1HRCyuR3xuA +d6Item7Lx1oEi7vb242yKdSYnpApWQ06xTh83Y/Ly87JaIEbiM0+h+P8OEIg0F1a +iB+86AcUX1I8KseVy+Np0HbpfwP8GrFfA5DaRPK7pXMopEtby8cAJ1XZZaI1/ZvZ +BebHAoGAcQU9WvCkT+nIp9FpXfBybYUsvgkaizMIqp66/l3GYgYAq8p1VLGvN4v5 +ec0dW58SJrCpqsM3NP78DtEzQf9OOsk+FsjBFzDU2RkeUreyt2/nQBj/2mN/+hEy +hYN0Zii2yTb63jGxKY6gH1R/r9dL8kXaJmcZrfSa3AgywnteJWg= +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIDBjCCAe4CCQCX05m0b053QzANBgkqhkiG9w0BAQQFADBFMQswCQYDVQQGEwJB +VTETMBEGA1UECBMKU29tZS1TdGF0ZTEhMB8GA1UEChMYSW50ZXJuZXQgV2lkZ2l0 +cyBQdHkgTHRkMB4XDTA4MTIwNzEwMjUyMloXDTE4MTIwNTEwMjUyMlowRTELMAkG +A1UEBhMCQVUxEzARBgNVBAgTClNvbWUtU3RhdGUxITAfBgNVBAoTGEludGVybmV0 +IFdpZGdpdHMgUHR5IEx0ZDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB +AMDjWizj+xHXoKo0bkCkg187x5hTGXwbn44RC4TY6OSrC+Inh4TEhgnElest9oc4 +akeZb01YmkHs/sYXOfDWUbvjlIBIaHUQVv7wDo6c/8XTM+R2ghIT9xPVtaZIrVbH +kvAea64CaNQXwhmotXz2r9Z7rT6tio+7zMtuPoOOtC6J3+pZ9XYuGkyEbQKl7VFO +kRaTyT9+T5Al20yuuTvByUscbf17X6HsxwlOflCMJmRmMeOlAVs4NyHyumxj0oh1 +N6XYk6JdLjD7fxlCvseDcmSePyJrDQInEcDAXY2uMsBylyXoR4FwbYbFSB2y9tcf +uIm7IPXlTP14qE1erVtyK3cCAwEAATANBgkqhkiG9w0BAQQFAAOCAQEAW4yZdqpB +oIdiuXRosr86Sg9FiMg/cn+2OwQ0QIaA8ZBwKsc+wIIHEgXCS8J6316BGQeUvMD+ +plNe0r4GWzzmlDMdobeQ5arPRB89qd9skE6pAMdLg3FyyfEjz3A0VpskolW5VBMr +P5R7uJ1FLgH12RyAjZCWYcCRqEMOffqvyMCH6oAjyDmQOA5IssRKX/HsHntSH/HW +W7slTcP45ty1b44Nq22/ubYk0CJRQgqKOIQ3cLgPomN1jNFQbAbfVTaK1DpEysrQ +5V8a8gNW+3sVZmV6d1Mj3pN2Le62wUKuV2g6BNU7iiwcoY8HI68aRxz2hVMS+t5f +SEGI4JSxV56lYg== +-----END CERTIFICATE----- +-----BEGIN DH PARAMETERS----- +MEYCQQD+ef8hZ4XbdoyIpJyCTF2UrUEfX6mYDvxuS5O1UNYcslUqlj6JkA11e/yS +6DK8Z86W6mSj5CEk4IjbyEOECXH7AgEC +-----END DH PARAMETERS----- diff --git a/3rdparty/mongoose/examples/restful_api/Makefile b/3rdparty/mongoose/examples/restful_api/Makefile new file mode 100644 index 00000000000..97fcf3f93db --- /dev/null +++ b/3rdparty/mongoose/examples/restful_api/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = restful_api +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/restful_api/index.html b/3rdparty/mongoose/examples/restful_api/index.html new file mode 100644 index 00000000000..9051ff08ceb --- /dev/null +++ b/3rdparty/mongoose/examples/restful_api/index.html @@ -0,0 +1,66 @@ + + + + + RESTful API demo + + + + + + + +
+

RESTful API demo.

+ +

+ This page demonstrates how Mongoose web server could be used to implement + RESTful APIs. Enter numbers below, and press Submit. Browser will send + two numbers to /api/sum URI, Mongoose calclulates the sum of + two and returns the result. +

+ +
+ +
+ +
+   +
+ +
+ + diff --git a/3rdparty/mongoose/examples/restful_api/restful_api.c b/3rdparty/mongoose/examples/restful_api/restful_api.c new file mode 100644 index 00000000000..ff0ac83a9f3 --- /dev/null +++ b/3rdparty/mongoose/examples/restful_api/restful_api.c @@ -0,0 +1,51 @@ +#include +#include +#include +#include "mongoose.h" + +static const char *s_no_cache_header = + "Cache-Control: max-age=0, post-check=0, " + "pre-check=0, no-store, no-cache, must-revalidate\r\n"; + +static void handle_restful_call(struct mg_connection *conn) { + char n1[100], n2[100]; + + // Get form variables + mg_get_var(conn, "n1", n1, sizeof(n1)); + mg_get_var(conn, "n2", n2, sizeof(n2)); + + mg_printf_data(conn, "{ \"result\": %lf }", strtod(n1, NULL) + strtod(n2, NULL)); +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + case MG_REQUEST: + if (!strcmp(conn->uri, "/api/sum")) { + handle_restful_call(conn); + return MG_TRUE; + } + mg_send_file(conn, "index.html", s_no_cache_header); + return MG_MORE; + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server; + + // Create and configure the server + server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8000"); + + // Serve request. Hit Ctrl-C to terminate the program + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 1000); + } + + // Cleanup, and free server instance + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/send_file/Makefile b/3rdparty/mongoose/examples/send_file/Makefile new file mode 100644 index 00000000000..4c20d6ac4b6 --- /dev/null +++ b/3rdparty/mongoose/examples/send_file/Makefile @@ -0,0 +1,21 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = send_file +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +all: $(PROG) + +run: $(PROG) + ./$(PROG) + +$(PROG): $(SOURCES) Makefile + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +win: + wine cl $(SOURCES) /MD /nologo /DNDEBUG /O1 /I../.. /Fe$(PROG).exe + wine $(PROG).exe + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib *.gc* diff --git a/3rdparty/mongoose/examples/send_file/send_file.c b/3rdparty/mongoose/examples/send_file/send_file.c new file mode 100644 index 00000000000..345c3af694b --- /dev/null +++ b/3rdparty/mongoose/examples/send_file/send_file.c @@ -0,0 +1,27 @@ +// Copyright (c) 2014 Cesanta Software +// All rights reserved +// +// This example demostrates how to send arbitrary files to the client. + +#include "mongoose.h" + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_REQUEST: + mg_send_file(conn, "send_file.c", NULL); // Also could be a dir, or CGI + return MG_MORE; // It is important to return MG_MORE after mg_send_file! + case MG_AUTH: return MG_TRUE; + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + mg_set_option(server, "listening_port", "8080"); + + printf("Starting on port %s\n", mg_get_option(server, "listening_port")); + for (;;) mg_poll_server(server, 1000); + mg_destroy_server(&server); + + return 0; +} diff --git a/3rdparty/mongoose/examples/web_server/Makefile b/3rdparty/mongoose/examples/web_server/Makefile new file mode 100644 index 00000000000..888f2148d81 --- /dev/null +++ b/3rdparty/mongoose/examples/web_server/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = web_server +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/web_server/web_server.c b/3rdparty/mongoose/examples/web_server/web_server.c new file mode 100644 index 00000000000..8f8567af774 --- /dev/null +++ b/3rdparty/mongoose/examples/web_server/web_server.c @@ -0,0 +1,491 @@ +// Copyright (c) 2004-2013 Sergey Lyubka +// Copyright (c) 2013-2014 Cesanta Software Limited + +#undef UNICODE // Use ANSI WinAPI functions +#undef _UNICODE // Use multibyte encoding on Windows +#define _MBCS // Use multibyte encoding on Windows +#define _WIN32_WINNT 0x500 // Enable MIIM_BITMAP +#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005 +#define _XOPEN_SOURCE 600 // For PATH_MAX on linux +#undef WIN32_LEAN_AND_MEAN // Let windows.h always include winsock2.h + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "mongoose.h" + +#ifdef _WIN32 +#include +#include // For chdir() +#include +#include + +#ifndef PATH_MAX +#define PATH_MAX MAX_PATH +#endif + +#ifndef S_ISDIR +#define S_ISDIR(x) ((x) & _S_IFDIR) +#endif + +#define DIRSEP '\\' +#define snprintf _snprintf +#define vsnprintf _vsnprintf +#define sleep(x) Sleep((x) * 1000) +#define abs_path(rel, abs, abs_size) _fullpath((abs), (rel), (abs_size)) +#define SIGCHLD 0 +typedef struct _stat file_stat_t; +#define stat(x, y) _stat((x), (y)) +#else +typedef struct stat file_stat_t; +#include +#include + +#ifdef IOS +#include +#endif + +#define DIRSEP '/' +#define __cdecl +#define abs_path(rel, abs, abs_size) realpath((rel), (abs)) +#endif // _WIN32 + +#define MAX_OPTIONS 100 +#define MAX_CONF_FILE_LINE_SIZE (8 * 1024) + +#ifndef MVER +#define MVER MONGOOSE_VERSION +#endif + +static int exit_flag; +static char server_name[50]; // Set by init_server_name() +static char s_config_file[PATH_MAX]; // Set by process_command_line_arguments +static struct mg_server *server; // Set by start_mongoose() +static const char *s_default_document_root = "."; +static const char *s_default_listening_port = "8080"; +static char **s_argv = { NULL }; + +static void set_options(char *argv[]); + +#if !defined(CONFIG_FILE) +#define CONFIG_FILE "mongoose.conf" +#endif /* !CONFIG_FILE */ + +static void __cdecl signal_handler(int sig_num) { + // Reinstantiate signal handler + signal(sig_num, signal_handler); + +#ifndef _WIN32 + // Do not do the trick with ignoring SIGCHLD, cause not all OSes (e.g. QNX) + // reap zombies if SIGCHLD is ignored. On QNX, for example, waitpid() + // fails if SIGCHLD is ignored, making system() non-functional. + if (sig_num == SIGCHLD) { + do {} while (waitpid(-1, &sig_num, WNOHANG) > 0); + } else +#endif + { exit_flag = sig_num; } +} + +static void vnotify(const char *fmt, va_list ap, int must_exit) { + char msg[200]; + + vsnprintf(msg, sizeof(msg), fmt, ap); + fprintf(stderr, "%s\n", msg); + + if (must_exit) { + exit(EXIT_FAILURE); + } +} + +static void notify(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + vnotify(fmt, ap, 0); + va_end(ap); +} + +static void die(const char *fmt, ...) { + va_list ap; + va_start(ap, fmt); + vnotify(fmt, ap, 1); + va_end(ap); +} + +static void show_usage_and_exit(void) { + const char **names; + int i; + + fprintf(stderr, "Mongoose version %s (c) Sergey Lyubka, built on %s\n", + MVER, __DATE__); + fprintf(stderr, "Usage:\n"); +#if !defined(MONGOOSE_NO_AUTH) && !defined(MONGOOSE_NO_FILESYSTEM) + fprintf(stderr, " mongoose -A \n"); +#endif + fprintf(stderr, " mongoose [config_file]\n"); + fprintf(stderr, " mongoose [-option value ...]\n"); + fprintf(stderr, "\nOPTIONS:\n"); + + names = mg_get_valid_option_names(); + for (i = 0; names[i] != NULL; i += 2) { + fprintf(stderr, " -%s %s\n", + names[i], names[i + 1] == NULL ? "" : names[i + 1]); + } + exit(EXIT_FAILURE); +} + +#define EV_HANDLER NULL + +static char *sdup(const char *str) { + char *p; + if ((p = (char *) malloc(strlen(str) + 1)) != NULL) { + strcpy(p, str); + } + return p; +} + +static void set_option(char **options, const char *name, const char *value) { + int i; + + for (i = 0; i < MAX_OPTIONS - 3; i++) { + if (options[i] == NULL) { + options[i] = sdup(name); + options[i + 1] = sdup(value); + options[i + 2] = NULL; + break; + } else if (!strcmp(options[i], name)) { + free(options[i + 1]); + options[i + 1] = sdup(value); + break; + } + } + + if (i == MAX_OPTIONS - 3) { + die("%s", "Too many options specified"); + } +} + +static void process_command_line_arguments(char *argv[], char **options) { + char line[MAX_CONF_FILE_LINE_SIZE], opt[sizeof(line)], val[sizeof(line)], + *p, cpath[PATH_MAX]; + FILE *fp = NULL; + size_t i, cmd_line_opts_start = 1, line_no = 0; + + // Should we use a config file ? + if (argv[1] != NULL && argv[1][0] != '-') { + snprintf(cpath, sizeof(cpath), "%s", argv[1]); + cmd_line_opts_start = 2; + } else if ((p = strrchr(argv[0], DIRSEP)) == NULL) { + // No command line flags specified. Look where binary lives + snprintf(cpath, sizeof(cpath), "%s", CONFIG_FILE); + } else { + snprintf(cpath, sizeof(cpath), "%.*s%c%s", + (int) (p - argv[0]), argv[0], DIRSEP, CONFIG_FILE); + } + abs_path(cpath, s_config_file, sizeof(s_config_file)); + + fp = fopen(s_config_file, "r"); + + // If config file was set in command line and open failed, die + if (cmd_line_opts_start == 2 && fp == NULL) { + die("Cannot open config file %s: %s", s_config_file, strerror(errno)); + } + + // Load config file settings first + if (fp != NULL) { + fprintf(stderr, "Loading config file %s\n", s_config_file); + + // Loop over the lines in config file + while (fgets(line, sizeof(line), fp) != NULL) { + line_no++; + + // Ignore empty lines and comments + for (i = 0; isspace(* (unsigned char *) &line[i]); ) i++; + if (line[i] == '#' || line[i] == '\0') { + continue; + } + + if (sscanf(line, "%s %[^\r\n#]", opt, val) != 2) { + printf("%s: line %d is invalid, ignoring it:\n %s", + s_config_file, (int) line_no, line); + } else { + set_option(options, opt, val); + } + } + + fclose(fp); + } + + // If we're under MacOS and started by launchd, then the second + // argument is process serial number, -psn_..... + // In this case, don't process arguments at all. + if (argv[1] == NULL || memcmp(argv[1], "-psn_", 5) != 0) { + // Handle command line flags. + // They override config file and default settings. + for (i = cmd_line_opts_start; argv[i] != NULL; i += 2) { + if (argv[i][0] != '-' || argv[i + 1] == NULL) { + show_usage_and_exit(); + } + set_option(options, &argv[i][1], argv[i + 1]); + } + } +} + +static void init_server_name(void) { + const char *descr = ""; + snprintf(server_name, sizeof(server_name), "Mongoose web server v.%s%s", + MVER, descr); +} + +static int is_path_absolute(const char *path) { +#ifdef _WIN32 + return path != NULL && + ((path[0] == '\\' && path[1] == '\\') || // UNC path, e.g. \\server\dir + (isalpha(path[0]) && path[1] == ':' && path[2] == '\\')); // E.g. X:\dir +#else + return path != NULL && path[0] == '/'; +#endif +} + +static char *get_option(char **options, const char *option_name) { + int i; + + for (i = 0; options[i] != NULL; i++) + if (!strcmp(options[i], option_name)) + return options[i + 1]; + + return NULL; +} + +static void *serving_thread_func(void *param) { + struct mg_server *srv = (struct mg_server *) param; + while (exit_flag == 0) { + mg_poll_server(srv, 1000); + } + return NULL; +} + +static int path_exists(const char *path, int is_dir) { + file_stat_t st; + return path == NULL || (stat(path, &st) == 0 && + ((S_ISDIR(st.st_mode) ? 1 : 0) == is_dir)); +} + +static void verify_existence(char **options, const char *name, int is_dir) { + const char *path = get_option(options, name); + if (!path_exists(path, is_dir)) { + notify("Invalid path for %s: [%s]: (%s). Make sure that path is either " + "absolute, or it is relative to mongoose executable.", + name, path, strerror(errno)); + } +} + +static void set_absolute_path(char *options[], const char *option_name) { + char path[PATH_MAX], abs[PATH_MAX], *option_value; + const char *p; + + // Check whether option is already set + option_value = get_option(options, option_name); + + // If option is already set and it is an absolute path, + // leave it as it is -- it's already absolute. + if (option_value != NULL && !is_path_absolute(option_value)) { + // Not absolute. Use the directory where mongoose executable lives + // be the relative directory for everything. + // Extract mongoose executable directory into path. + if ((p = strrchr(s_config_file, DIRSEP)) == NULL) { + getcwd(path, sizeof(path)); + } else { + snprintf(path, sizeof(path), "%.*s", (int) (p - s_config_file), + s_config_file); + } + + strncat(path, "/", sizeof(path) - 1); + strncat(path, option_value, sizeof(path) - 1); + + // Absolutize the path, and set the option + abs_path(path, abs, sizeof(abs)); + set_option(options, option_name, abs); + } +} + +#if !defined(MONGOOSE_NO_AUTH) && !defined(MONGOOSE_NO_FILESYSTEM) +int modify_passwords_file(const char *fname, const char *domain, + const char *user, const char *pass) { + int found; + char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX]; + FILE *fp, *fp2; + + found = 0; + fp = fp2 = NULL; + + // Regard empty password as no password - remove user record. + if (pass != NULL && pass[0] == '\0') { + pass = NULL; + } + + (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname); + + // Create the file if does not exist + if ((fp = fopen(fname, "a+")) != NULL) { + fclose(fp); + } + + // Open the given file and temporary file + if ((fp = fopen(fname, "r")) == NULL) { + return 0; + } else if ((fp2 = fopen(tmp, "w+")) == NULL) { + fclose(fp); + return 0; + } + + // Copy the stuff to temporary file + while (fgets(line, sizeof(line), fp) != NULL) { + if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) { + continue; + } + + if (!strcmp(u, user) && !strcmp(d, domain)) { + found++; + if (pass != NULL) { + mg_md5(ha1, user, ":", domain, ":", pass, NULL); + fprintf(fp2, "%s:%s:%s\n", user, domain, ha1); + } + } else { + fprintf(fp2, "%s", line); + } + } + + // If new user, just add it + if (!found && pass != NULL) { + mg_md5(ha1, user, ":", domain, ":", pass, NULL); + fprintf(fp2, "%s:%s:%s\n", user, domain, ha1); + } + + // Close files + fclose(fp); + fclose(fp2); + + // Put the temp file in place of real file + remove(fname); + rename(tmp, fname); + + return 1; +} +#endif + +static void start_mongoose(int argc, char *argv[]) { + s_argv = argv; + if ((server = mg_create_server(NULL, EV_HANDLER)) == NULL) { + die("%s", "Failed to start Mongoose."); + } + +#if !defined(MONGOOSE_NO_AUTH) && !defined(MONGOOSE_NO_FILESYSTEM) + // Edit passwords file if -A option is specified + if (argc > 1 && !strcmp(argv[1], "-A")) { + if (argc != 6) { + show_usage_and_exit(); + } + exit(modify_passwords_file(argv[2], argv[3], argv[4], argv[5]) ? + EXIT_SUCCESS : EXIT_FAILURE); + } +#endif + + // Show usage if -h or --help options are specified + if (argc == 2 && (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))) { + show_usage_and_exit(); + } + set_options(argv); +} + +static void set_options(char *argv[]) { + char *options[MAX_OPTIONS]; + int i; + + options[0] = NULL; + set_option(options, "document_root", s_default_document_root); + set_option(options, "listening_port", s_default_listening_port); + + // Update config based on command line arguments + process_command_line_arguments(argv, options); + + // Make sure we have absolute paths for files and directories + // https://github.com/valenok/mongoose/issues/181 + set_absolute_path(options, "document_root"); + set_absolute_path(options, "dav_auth_file"); + set_absolute_path(options, "cgi_interpreter"); + set_absolute_path(options, "access_log_file"); + set_absolute_path(options, "global_auth_file"); + set_absolute_path(options, "ssl_certificate"); + + if (!path_exists(get_option(options, "document_root"), 1)) { + set_option(options, "document_root", s_default_document_root); + set_absolute_path(options, "document_root"); + notify("Setting document_root to [%s]", + mg_get_option(server, "document_root")); + } + + // Make extra verification for certain options + verify_existence(options, "document_root", 1); + verify_existence(options, "cgi_interpreter", 0); + verify_existence(options, "ssl_certificate", 0); + + for (i = 0; options[i] != NULL; i += 2) { + const char *msg = mg_set_option(server, options[i], options[i + 1]); + if (msg != NULL) { + notify("Failed to set option [%s] to [%s]: %s", + options[i], options[i + 1], msg); + if (!strcmp(options[i], "listening_port")) { + mg_set_option(server, "listening_port", s_default_listening_port); + notify("Setting %s to [%s]", options[i], s_default_listening_port); + } + } + free(options[i]); + free(options[i + 1]); + } + + // Change current working directory to document root. This way, + // scripts can use relative paths. + chdir(mg_get_option(server, "document_root")); + +#if 0 + // Add an ability to pass listening socket to mongoose + { + const char *env = getenv("MONGOOSE_LISTENING_SOCKET"); + if (env != NULL && atoi(env) > 0 ) { + mg_set_listening_socket(server, atoi(env)); + } + } +#endif + + // Setup signal handler: quit on Ctrl-C + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); +#ifndef _WIN32 + signal(SIGCHLD, signal_handler); +#endif +} + +int main(int argc, char *argv[]) { + init_server_name(); + start_mongoose(argc, argv); + printf("%s serving [%s] on port %s\n", + server_name, mg_get_option(server, "document_root"), + mg_get_option(server, "listening_port")); + fflush(stdout); // Needed, Windows terminals might not be line-buffered + serving_thread_func(server); + printf("Exiting on signal %d ...", exit_flag); + fflush(stdout); + mg_destroy_server(&server); + printf("%s\n", " done."); + + return EXIT_SUCCESS; +} diff --git a/3rdparty/mongoose/examples/websocket_chat/Makefile b/3rdparty/mongoose/examples/websocket_chat/Makefile new file mode 100644 index 00000000000..780276ef46b --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_chat/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = websocket_chat +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/websocket_chat/index.html b/3rdparty/mongoose/examples/websocket_chat/index.html new file mode 100644 index 00000000000..5da84d30775 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_chat/index.html @@ -0,0 +1,98 @@ + + + + + WebSocket Test + + + + + + +
+

Websocket PubSub Demonstration

+ +

+ This page demonstrates how Mongoose web server could be used to implement + + publish–subscribe pattern. Open this page in several browser + windows. Each window initiates persistent + WebSocket + connection with Mongoose, making each browser window a websocket client. + Join a room, send messages, and see messages sent by other clients. +

+ +

+ My ID: +

+

+ Join room: +

+ +
+
+ +

+ + +

+
+ + diff --git a/3rdparty/mongoose/examples/websocket_chat/websocket_chat.c b/3rdparty/mongoose/examples/websocket_chat/websocket_chat.c new file mode 100644 index 00000000000..5ba53801017 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_chat/websocket_chat.c @@ -0,0 +1,83 @@ +// Copyright (c) 2013-2014 Cesanta Software Limited +// $Date: 2014-09-09 17:07:55 UTC $ + +#include +#include +#include +#include +#include "mongoose.h" + +static int s_signal_received = 0; +static struct mg_server *s_server = NULL; + +// Data associated with each websocket connection +struct conn_data { + int room; +}; + +static void signal_handler(int sig_num) { + signal(sig_num, signal_handler); // Reinstantiate signal handler + s_signal_received = sig_num; +} + +static void handle_websocket_message(struct mg_connection *conn) { + struct conn_data *d = (struct conn_data *) conn->connection_param; + struct mg_connection *c; + + printf("[%.*s]\n", (int) conn->content_len, conn->content); + if (conn->content_len > 5 && !memcmp(conn->content, "join ", 5)) { + // Client joined new room + d->room = conn->content[5]; + } else if (conn->content_len > 4 && !memcmp(conn->content, "msg ", 4) && + d->room != 0 && d->room != '?') { + // Client has sent a message. Push this message to all clients + // that are subscribed to the same room as client + for (c = mg_next(s_server, NULL); c != NULL; c = mg_next(s_server, c)) { + struct conn_data *d2 = (struct conn_data *) c->connection_param; + if (!c->is_websocket || d2->room != d->room) continue; + mg_websocket_printf(c, WEBSOCKET_OPCODE_TEXT, "msg %c %p %.*s", + (char) d->room, conn, + conn->content_len - 4, conn->content + 4); + } + } +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_REQUEST: + if (conn->is_websocket) { + handle_websocket_message(conn); + return MG_TRUE; + } else { + mg_send_file(conn, "index.html", NULL); // Return MG_MORE after! + return MG_MORE; + } + case MG_WS_CONNECT: + // New websocket connection. Send connection ID back to the client. + conn->connection_param = calloc(1, sizeof(struct conn_data)); + mg_websocket_printf(conn, WEBSOCKET_OPCODE_TEXT, "id %p", conn); + return MG_FALSE; + case MG_CLOSE: + free(conn->connection_param); + return MG_TRUE; + case MG_AUTH: + return MG_TRUE; + default: + return MG_FALSE; + } +} + +int main(void) { + s_server = mg_create_server(NULL, ev_handler); + mg_set_option(s_server, "listening_port", "8080"); + + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + + printf("Started on port %s\n", mg_get_option(s_server, "listening_port")); + while (s_signal_received == 0) { + mg_poll_server(s_server, 100); + } + mg_destroy_server(&s_server); + return 0; +} diff --git a/3rdparty/mongoose/examples/websocket_echo_server/Makefile b/3rdparty/mongoose/examples/websocket_echo_server/Makefile new file mode 100644 index 00000000000..f6b132dc9c6 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_echo_server/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = websocket_echo_server +CFLAGS = -W -Wall -I../.. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = $(PROG).c ../../mongoose.c + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/websocket_echo_server/index.html b/3rdparty/mongoose/examples/websocket_echo_server/index.html new file mode 100644 index 00000000000..84e7078a7cb --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_echo_server/index.html @@ -0,0 +1,46 @@ + + +WebSocket Test + + +

Mongoose WebSocket Test

+ +
+ diff --git a/3rdparty/mongoose/examples/websocket_echo_server/websocket_echo_server.c b/3rdparty/mongoose/examples/websocket_echo_server/websocket_echo_server.c new file mode 100644 index 00000000000..9001a8a4c23 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_echo_server/websocket_echo_server.c @@ -0,0 +1,61 @@ +// Copyright (c) 2013-2014 Cesanta Software Limited +// $Date: 2014-09-09 17:07:55 UTC $ + +#include +#include +#include "mongoose.h" + +static void push_message(struct mg_server *server, time_t current_time) { + struct mg_connection *c; + char buf[20]; + int len = sprintf(buf, "%lu", (unsigned long) current_time); + + // Iterate over all connections, and push current time message to websocket ones. + for (c = mg_next(server, NULL); c != NULL; c = mg_next(server, c)) { + if (c->is_websocket) { + mg_websocket_write(c, 1, buf, len); + } + } +} + +static int send_reply(struct mg_connection *conn) { + if (conn->is_websocket) { + // This handler is called for each incoming websocket frame, one or more + // times for connection lifetime. + // Echo websocket data back to the client. + mg_websocket_write(conn, 1, conn->content, conn->content_len); + return conn->content_len == 4 && !memcmp(conn->content, "exit", 4) ? + MG_FALSE : MG_TRUE; + } else { + mg_send_file(conn, "index.html", NULL); + return MG_MORE; + } +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: return MG_TRUE; + case MG_REQUEST: return send_reply(conn); + default: return MG_FALSE; + } +} + +int main(void) { + struct mg_server *server = mg_create_server(NULL, ev_handler); + time_t current_timer = 0, last_timer = time(NULL); + + mg_set_option(server, "listening_port", "8080"); + + printf("Started on port %s\n", mg_get_option(server, "listening_port")); + for (;;) { + mg_poll_server(server, 100); + current_timer = time(NULL); + if (current_timer - last_timer > 0) { + last_timer = current_timer; + push_message(server, current_timer); + } + } + + mg_destroy_server(&server); + return 0; +} diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/Makefile b/3rdparty/mongoose/examples/websocket_ssl_proxy/Makefile new file mode 100644 index 00000000000..bd3f6be1297 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/Makefile @@ -0,0 +1,15 @@ +# Copyright (c) 2014 Cesanta Software +# All rights reserved + +PROG = ws_ssl +CFLAGS = -W -Wall -I../.. -I. -pthread -g -O0 $(CFLAGS_EXTRA) +SOURCES = ws_ssl.c ../../mongoose.c ssl_wrapper.c + +all: $(PROG) + +$(PROG): $(SOURCES) + $(CC) -o $(PROG) $(SOURCES) \ + -DNS_ENABLE_SSL -DSSL_WRAPPER_USE_AS_LIBRARY -lssl $(CFLAGS) + +clean: + rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_ca.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_ca.pem new file mode 100644 index 00000000000..ebc7d8fd5eb --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_ca.pem @@ -0,0 +1,49 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEowIBAAKCAQEAwizPnrCx+/kPSdEeSJFLDXrBH+cSQsSLrCm99G1hCjzqSlIk +1BhkZMEHxBaiVLky4+M/nwhjwwRHI10h6U2Or3tbPLv7z94cPf+uCx1aF7TE3Fm3 +6YnDk+CjrYVFN5GRPGOPPdFxGoc+vFvQJyAAimvchnS1ZoEQFvermwzOnKspA6gc +Px+7wnOeju9TyJuDr5ngtDXFnkcpkBNPxz3En4MJY4xJiaueafh9pIES2vSl7uP0 +J/qot9v2rdiL7nt1H1vwseeEkZhQ+NLB5e2z4psyktJcwDX7wQ6j7JnKfHeP+ixO +TUORgV4foBMVOqo//Guo92Q5HoLNK77V0y4+ZQIDAQABAoIBAGEsx+LlDs3JQQty +KjOq8uKWElyC6bKcZkIMydGvg6b6AU6ceW3jnyqFJ/vMUAUSghNmQQq3yiVo2Kks +DLKTa9sKYwisE0NeJsgoUtOhJttCTlrwU4f+t/AjtgY68f7zTLnqIV+Ql4ftM0pU +sIFEFMExZbWsZrQb1w+Hd0wrRqNEbSOfSjHeigvuw1T3GH2tSBUTGTpcoewCzy7U +PKS5pkYyiKySQQNqZTac3NHPjxdK6xxzwURZp1irKdiPdt04KHLVLX8KXelt/J0k +AeYkVbpFIeQ9rNBerMEp6uRBt+nE5mvP+xx1XPqKRxuxbMyTnBXeOM2zS/a/dBiz +fwokwcECgYEA9RSsv9AQ/AR8tt+aPEQvjhJ5pn/YbCb1DA9IDXpaq3tzacGd8JHj +3kUtb79nosu85LvSkAYmtzgfJs6xZyUkscra6q+xlsJ12QRxLzqfxcp9Y0wsdqM4 +AcOwuiPKrjkWxOQpyWPWRwbmAefLfRMekHt4Y/QY0CwhslpnsOsj3O0CgYEAytOE +8I4GBfSQfSjXwfrso++Oi75VSsl5ZeiMGihfEhYFTE8/3rEZf7nf9iFSkN3TT+7f +pFqQzddzPBZXlpVM6k1jcEjdpJizbeR8DmICpABFrZvKz1o8pQ2Yw+FYI86ih0x4 +806snMNgg/RgcVijXKFrC5joJOI+DVgwWoQyMFkCgYBxt4MkiV2oIkjf7ca6GgVa +zbXGjOGV5Umkq96J6nDxyplVw/IN8xOhScX4aP6kahaep4vfKguCzjaeIh/stS5e +lLqZVKZ5Roe6B7ag7HnAI+GkVm73KWrOXse8xui/iFvJRfkhqgJ9+HR3A9/GjD2N +Ws0Uy+lLhn6oLAya6bA9TQKBgAVfZP4aRP6TY+Bs3Io+41XUWqpI+GlqvNR+PHfU +6e/ItYs37jEv78T6X3xdlZpQxfAwG6x22a8aLetBjEBo5Aiw1Bl9VKGvidE3ZDHd +VsSRXUckAVNMyJ52pb1KktMf/h4nYGzRgLEGW+Ai8QsPlgQ2ImfEPSH8/DfORjmf +ltTBAoGBAMxIZ52DrJvuxogSOfA1MoCD6a90trkXCquvi+A/fXojZ8BHmMQshvhK +rAO7SDIV1i1Nh3jQ/oFWE8KOprqrOLO6jNTyF65vh+zk7ztGsEME9FkDhHasUiXf +t5PE9KeTChHRvIa4FGCl9We9GftE5Ii77LWMOIq22pyxYbvHQFEf +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIDlDCCAnygAwIBAgIJAIOoO+AapJ5WMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNV +BAMTA3dzMTEMMAoGA1UEChMDd3MxMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVi +bGluMB4XDTE0MDgwMzA5MTU0NVoXDTI0MDczMTA5MTU0NVowOjEMMAoGA1UEAxMD +d3MxMQwwCgYDVQQKEwN3czExCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZEdWJsaW4w +ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDCLM+esLH7+Q9J0R5IkUsN +esEf5xJCxIusKb30bWEKPOpKUiTUGGRkwQfEFqJUuTLj4z+fCGPDBEcjXSHpTY6v +e1s8u/vP3hw9/64LHVoXtMTcWbfpicOT4KOthUU3kZE8Y4890XEahz68W9AnIACK +a9yGdLVmgRAW96ubDM6cqykDqBw/H7vCc56O71PIm4OvmeC0NcWeRymQE0/HPcSf +gwljjEmJq55p+H2kgRLa9KXu4/Qn+qi32/at2Ivue3UfW/Cx54SRmFD40sHl7bPi +mzKS0lzANfvBDqPsmcp8d4/6LE5NQ5GBXh+gExU6qj/8a6j3ZDkegs0rvtXTLj5l +AgMBAAGjgZwwgZkwHQYDVR0OBBYEFL54xAgtJTW6US4Mbr4QG0yKzvaxMGoGA1Ud +IwRjMGGAFL54xAgtJTW6US4Mbr4QG0yKzvaxoT6kPDA6MQwwCgYDVQQDEwN3czEx +DDAKBgNVBAoTA3dzMTELMAkGA1UEBhMCSUUxDzANBgNVBAcTBkR1YmxpboIJAIOo +O+AapJ5WMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQADggEBAJz/RzMa9Wa2 +eEXed7ijH1gcWtgVsVT1xZo0ksFl+QJ5Be1AJpOIe8nKdzYjxPWUkofIoaGHdMLL +Uc/udRzsXncup+0mD+Yos6Cqyo9yHq7L1HbXfKYZtBXIjWHdF2+RP8j9tHfITXYI +Pb2zsQ+A6PYpp5OLGZTDAnI2qffqsmwXFNhPfFhOANrGlOjsvy1P7JDzvymj/90m +NomlO3vjxLHOf6MvedTgCB0dRcAoUWPgbxPWifjBmGBjQjA4ukMQ58wbBQgvIoCW +obrXmLCNZIkpWTw4gMRYquY880IYK/OuFNJH/dawxx/WzuVr7IdLmbFY15zf5TUb +ZpIpwqRCysg= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_client.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_client.pem new file mode 100644 index 00000000000..82e99504cb8 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_client.pem @@ -0,0 +1,45 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEpQIBAAKCAQEAwOp1RS9RnE8L5TszDPIOmpf/1pqb+ki99l/sGhqB/KZBKCuq +uoCc2VPK3PCByBE15/xJ7t691FnJfForI9DO5p2R0FPD6o357hqRsh0dJNBm0VgG +iNtLQ8lyYoE72HJbkgCAUZW4N0OBibOmvp/s3Fmr7rEjW5LmZxOtX+iULKIUZ0w6 +gJlM8G5QA1SuqndN0PbPx+RZKSXZCoJj+Nboqw03nyJUexzs+lynR9ITMziUaaVM +4rzG+P6joQAnUkDNydxo/d4tj4xaioZdKxWLYEbj2BUtOlJJydotWo2wcG85ONrT +Gw0ltR1vku1hidMm2QL30uGIL5SeqyE8TqWk4QIDAQABAoIBAQCxHtKauc45MA4g +4hCGAzvLTmETnRI2YlEfAoTYlpvf5pkOE8GFyI25r4gjACJ4GO0gWG9dBF7Pt7wZ +EwRmttEvxV3aIv5OvRnKNdSs7rQSV9D+xc4CGy1oSG1f6X2TxbMzQoiN32OqQa2O +S0Z94IFs8lu8JCDtc9tcqiFVXEmnC3RvJZOShWpsCsbmh5ue1Xed0MQQ47vt7Zt7 +I0cutvwSFJMsZkZUJp5+KjVNYo9TEJxVD3m2NJNJxBfBoRVHXNii3hUEHcTIdIAz +omtRwBU8AKgJirGIRo1h2ZFyubI8ScGOJWIiWMQvQqTHKiOaz3yUar1NSG+kFn0U +cj7s3FhdAoGBAOQbx8Jwhtp4iOkP6aW1nVTgiaTj4LMlyJZioFwgPFRIcA3oRHt9 +5SRetmgFZNvcuNw1udfeaObKmlzxwUruprwOpihgAQWJFTtOjQNrt2gsYuX4l3W6 +T46dO2W1pV+mW4A5gt0aqhLv7pCS4lpreNAqyHSPqcQWcCeiTzmp/LfDAoGBANiB +FQOTyMElR9OzKwmcGfIvnhUfJQwi5qNE3R+xXiP5x36a9HQBey5ri2lnBle0Ksr/ +G+RKoflmk1eFXVHN0w35yw0dVco//WE4vOknldNEnIT85k02ld8lDTa2Q/EJZtPH +un6zeU0Q2/4SZ/GXPssEZPlpPM7WtQzztlH3+sqLAoGBAKnhppvAgi4ippQsLa4j +29BiiSAsNiQ1d3XIbfUubL+4UvuIh7gQwp6biu1dVwgHEgWuXYHPOgDn0p51zaao +pbRYlJZtKVWeChnpHkv15NnIdL8grGwZHTbxElNlPIxHsM2GB1fzi8YeumUhf0In +2AnwUum8NIq8yzo5PxeK6ZNRAoGBAIEA2Q6ankJH/nZsCbbeJq+iI+Wd+ysyGI8s +Vz2tJ9Tz3iTYG9SLlWRhfF4/nw3fMqhmPa5Xsg+zSRQbSTGXHKz1LEISOq4aVtX5 +QscCaUnLVh//uRJE9iRSJX92NyGGYpjKJ5ubQSnkY9EOEpVnc2jwo2HhjPQKBzNC +fF53Dh5lAoGALwTN5uxrBZLPu4DtZkOosKkv4l+kzFoOjLJR4vA7ONBx2CSe9G7F +tSsH7lZS3b0mxBWjO90WhaSvtMWWrfqq8vrqmoTE795fYxNoLfCLK13W31aTDUsI +pQRJIL30MPvASbcFHN2MD2dXz2nQzY8C9lvtvap/krYiDKDU2L7+iP8= +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIC7DCCAdQCBRQHBXNHMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNVBAMTA3dzMTEM +MAoGA1UEChMDd3MxMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVibGluMB4XDTE0 +MDgwMzA5MTU0NVoXDTI0MDczMTA5MTU0NVowOjEMMAoGA1UEAxMDd3MxMQwwCgYD +VQQKEwN3czExCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZHYWx3YXkwggEiMA0GCSqG +SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDA6nVFL1GcTwvlOzMM8g6al//Wmpv6SL32 +X+waGoH8pkEoK6q6gJzZU8rc8IHIETXn/Enu3r3UWcl8Wisj0M7mnZHQU8Pqjfnu +GpGyHR0k0GbRWAaI20tDyXJigTvYcluSAIBRlbg3Q4GJs6a+n+zcWavusSNbkuZn +E61f6JQsohRnTDqAmUzwblADVK6qd03Q9s/H5FkpJdkKgmP41uirDTefIlR7HOz6 +XKdH0hMzOJRppUzivMb4/qOhACdSQM3J3Gj93i2PjFqKhl0rFYtgRuPYFS06UknJ +2i1ajbBwbzk42tMbDSW1HW+S7WGJ0ybZAvfS4YgvlJ6rITxOpaThAgMBAAEwDQYJ +KoZIhvcNAQEFBQADggEBABPLmq6zKOMY0WRjtBoSymq6f+vXeEwtWCfVejdG6RlG +/PTdCKNvp3OL7FDnmQQ+r5rMs4+Os4fX/g315QFKXu01rqxmFb2XVNhhaECdUWtK +QP6ZoVZviUiDjhK6a+05aerPCJpkGy/lz0W6gmj4qhuAQbobxb6UbzqTRYY+ZwGk ++SI3TAVCdmXFlxN/M9b0DbmkseRG8GGFmyRYyRb84vbV6zemFI++5ROUT9zXT7ey +nYfFJvAAk5jJhY5UP2aMlVWYYa4jUZrrPLoiBLUuRrp67EKGebCH9mgCIf8ztNJF +fpuvcz++LUeRyTlAGDefe+FyHGIwFzIfZn39D7CaRvM= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_server.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_server.pem new file mode 100644 index 00000000000..93ef657ec6f --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws1_server.pem @@ -0,0 +1,45 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEpAIBAAKCAQEAyal0BZKRYd+Wpxv4MB8LjjgXv/MxSN5oSAKThlCZ/AWG0FEP +d4nrBACT2xUxwo+xbYl3joiwL/eCPAp6QNKRGhvXVOnSIFVSjKZWbdX+toqK9pDS +QMDTL4ZJvK6pLZXknyHjEr0PxZh22F7iS1+C8HxBPj0Xgg/u5/+jPhFPPZ1d5elv +4cm/z+xy6RjFlA80aIeK7dcWssOsOIPjUNFfmoYgR63ScZIlUZj6j8VX9oX7fJID +jumGajDxgD2nBWFbHcGKin6bz/wZ+OIhXOCDdY7oKuMW4JiBwbfBtedkQuQYS11s +PRFFYDLoZH59Ivcu0c4F2tomE86qM8THsI910wIDAQABAoIBAG55FAQRfO8/C0rU +eavy9eOdOvV+hltC66G3N5X3BcQYSvhHz89OkJ6KqnT0MWRCT5KQIhzFKK++SWwW +2U41jCPfaKEtzlzEIQrH/MUC3Byn3OSiBWxPteFtEWv5ytgcKzg52iljxQYcNc7m +e9WKpzKS/zLXSM+JZvlVA9p2pRA88kUZ/EE5H+FW3kHj5eGNqX+cxUVpL0VKTiLv +aXWjYotpmDJW/Rn9wRQethm6Gdx3bvo+LEVlJRELNq8NM5H/tZIVRzudJOgzsw5v +3OQGhfKB6Eg/vqSFoZxX6ApXDxmtaSO83B0kK550bDVv4sBnOExGjKCzybt04tet +KtLPPoECgYEA5WUD+mFL99sCX6pzIyUVlxp9eUhVy5nvhoF6u3mvhay2XsZUY0wy ++/qVqYSZTvuvJ6JSXc4iVIX8u/gj7914805AwujepIF/8E0AaXLBMndzDE4ze5S5 +2RHI7Cy4/3AWOcQ9wFFmUdSs7/6oAkcQtvzP40hGg3J2jAEhIdCqmbMCgYEA4Q0G +BYP9XeTdh0C+BcP9B5VUEC0jerYS8VqVqriB+9JfT3InI7K08sOG2DiQQBhAHuzL +RhCECU2a9j0+u5F5JNeY5m3IhU73Lw+lOlUkMaAO6x7JJEzhXhonE7Kv8fWygr/0 +OB7yzqz+YsWdQ2VOPZ88ntlAYE65vzcaVswZY2ECgYEAr7Gt2VA6Ei0A5Wq0Yr+d +iKz2WzUG2TkelqOG8B4kTDrbNz2qFp+fERV9GWgAz9i+75lIgqZF7vzsdL96LtYv +NBLEUURwegjhh5hCb4E/7bpFOLCQh9+CdHpFrHYYfzRHIZlnPmxZ9OTyS6J85bmu +WKjLRKXvs++wUkzvJmoesDcCgYEAkTOB6xUZ5/a+J4HSGI43NylVr4owFgBbgHVd +k2SwGPXGoM+aCSJINUmKOv9jsrbyyAEntfD5/7aegLlLPGHDs82WzTWP5tLoEOkb +ReOhEpOejHy0ckNYNQrSo5bqhkZsAogu3fa52jcrejbeHJnEPWX8CtFJA9pHZeP7 +jnzo9IECgYBefHg0dymSj2xxN0XmC+S5cvQu2K/NYUpatoWvHnPiQ87wIM0AWz0O +D0ghEI+Ze57NbtSrrcTE7hY/LHrAqXGAB9XNIM5g9Pp/lM+XjzKVr1FMf4xpuHf1 +VJJRHrOU14CvMvKbgbPrL6B0d5yrYmeex7GxNw0ZVvtjCa502Eck+w== +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIC7DCCAdQCBRQHBXNGMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNVBAMTA3dzMTEM +MAoGA1UEChMDd3MxMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVibGluMB4XDTE0 +MDgwMzA5MTU0NVoXDTI0MDczMTA5MTU0NVowOjEMMAoGA1UEAxMDd3MxMQwwCgYD +VQQKEwN3czExCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZHYWx3YXkwggEiMA0GCSqG +SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDJqXQFkpFh35anG/gwHwuOOBe/8zFI3mhI +ApOGUJn8BYbQUQ93iesEAJPbFTHCj7FtiXeOiLAv94I8CnpA0pEaG9dU6dIgVVKM +plZt1f62ior2kNJAwNMvhkm8rqktleSfIeMSvQ/FmHbYXuJLX4LwfEE+PReCD+7n +/6M+EU89nV3l6W/hyb/P7HLpGMWUDzRoh4rt1xayw6w4g+NQ0V+ahiBHrdJxkiVR +mPqPxVf2hft8kgOO6YZqMPGAPacFYVsdwYqKfpvP/Bn44iFc4IN1jugq4xbgmIHB +t8G152RC5BhLXWw9EUVgMuhkfn0i9y7RzgXa2iYTzqozxMewj3XTAgMBAAEwDQYJ +KoZIhvcNAQEFBQADggEBAE20gAykuuaCoP49GnZ/Z6ZItFry4Fl6iCWBDdEsWI9R +wRNYumeaeejdFPXfSJdTT7UlrVK1WWGLQLq+ixHRDX+V9T67ou85F92H/OxbUoPr +iz/TZAEBTC1GvTJl49lsfPl1dTWH8T4Ej2hxCUvIJrkCkI2Ov4Wwef6A26USrwBt +S/CPInjCe6qkE5E8xfTDl8k5IIgMadTPhi5sbV2piBJoN4floJPqR0hdDKbgUymn +5WNSiRkuI6UIDZwQEp+A8TmFBHbSwfTGt2Sz5iI27P8J6pFvR5eRA1k57dRUWNXC +WAU1nqteP3QAjj9L3o8IO0T62scaiJX8x01gTmVVe2I= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_ca.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_ca.pem new file mode 100644 index 00000000000..9345a94a60a --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_ca.pem @@ -0,0 +1,49 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEowIBAAKCAQEAwXIMpHuTNsro2pxe6y1mu27md2Olhvfx26rO3maO0/stIC2z +G/xQatFDLIWzfKFYOT0iSEj252ENFDCw6aDRKpiaUFtXcMAWkNkkKntEyoEgE45k +rTrvpay0v0B+ojwjA1Jz/9v35cgvDwTs3vNFno5HhI0m2YF4ocTmeHJ6u0xRL/qy +atfKsfuVq5s5CXOYCXp3Ux6kJ1c22J0EdZMvS75SVjAZgRkqQpqt9L3e2ZBCEgUr +w0KwlERvpeJF+sJJOshXjfrDzvwL8IpPnGZLJNINFbSJMk5MFGcMyq/28pSZLB9E +Dh8vk5D5gUnxM60ONUy2nYPcYr5p1PLDiC8hfQIDAQABAoIBAB0Twpi6xn8W8vdh +R9c75NRJsDTD8q6d+GnXe+7sJY3xlG/gzqpnO8NCn0FC+57BNdystsl8xjgzW17s +jrsfZDFt7MwlXrhg90NgkFIeY1G5JRQrdDChykHx+t1AmYhTV8P5EdykuNd+RqyQ +RfahRJa3tkJTYUKSdoqCaU4zjwU2CSxltuJx24V+WoZE12EwewJ8HPg2XTnbsGE7 +Fnx5s29O4ItM70CC0536AY/OgfuPix5z573VQiilqqfOQkVkKa1fHd6tGpWU+3kH +X9FnhEBf9cN9tVgmaB0sCSVVrfgqSXg1EwKHqe/+FCumuesA68Q35+/K3b+QrNiR +ka2yliECgYEA+V/4pbgG/lPYvTwWhKxGXXdJmrSPgZC0mwE+fRuYkeptbIkS0pwt +/UDTXk9nttj1f1ZJ3NgQbT/1w8jpXfsCJ8VeGzL9+ADhRKWVFRlu/nyFCMXawLEV +rot7SEr8BW/m8moHgY5lYipM3dXJPk0F+KLrN60U/aNmFUtPGW802BkCgYEAxpWy +FGL2sEQ0QaRDTcqqF5faVqw+5rVGvN+EX5o26E0QWWnoo3L2c2/5X93iBl+Fqtnm +9jSIQUC3rYOawKnZ/HcIE2ergFit/p6JaV9NiLDRtDUmSzlffEGVCj0neYFsnWp5 +zcmkUyZ6fr19EmKQWfdteNBlXue32TjVlFbfUQUCgYAfMbgi0sBdNBPaqBeRBRPQ +QUm9xnRlGrrc4Oz2LWuKZS7G8uad3deK5H8MPxaUMtOS2DJpI8X6RJPzp8A5d1qv +quq4sEpAqauEMMpTV1khEGZ70HQqwnwZ12zWgDrCW1siW80QkcVw4CW5YjLITk4+ +6fJOhqInkDcG1uLQJa8QkQKBgQCfs8l4DbJ4RRGFbLXXvNGXkb68j18yqLxPrq3F +OL9JiJhKYBsAP7clVPrG9ykLmQxlP0I35D1jxMkymLD+mlo9Z/itqmTJHggnyZWW +kVdIQ3MSKuA2BNjek9tpVY8Gb2hLHFMChVRKrpo6jOclvvB5+bsnOukbLtyyq7tP +xaFohQKBgByCmlltjOBWZLFLeA1x8j3inm9zM/FAJuANbHUOZ1RwrRcNFbDv/FXm +rLPnPCaH5AwAWhVRJcNHo37Ee0s/xqe+Q4dG4xL943k+6KlopAw1SXhuXF6PnBfF +y+ArVlh9d2oWN5cBEzRddnWnKJuMi70kMzYf6dIW9s/dHbq/gFDy +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIDlDCCAnygAwIBAgIJAJDtcXU2wiJIMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNV +BAMTA3dzMjEMMAoGA1UEChMDd3MyMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVi +bGluMB4XDTE0MDgwMzA5MTU0OFoXDTI0MDczMTA5MTU0OFowOjEMMAoGA1UEAxMD +d3MyMQwwCgYDVQQKEwN3czIxCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZEdWJsaW4w +ggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDBcgyke5M2yujanF7rLWa7 +buZ3Y6WG9/Hbqs7eZo7T+y0gLbMb/FBq0UMshbN8oVg5PSJISPbnYQ0UMLDpoNEq +mJpQW1dwwBaQ2SQqe0TKgSATjmStOu+lrLS/QH6iPCMDUnP/2/flyC8PBOze80We +jkeEjSbZgXihxOZ4cnq7TFEv+rJq18qx+5WrmzkJc5gJendTHqQnVzbYnQR1ky9L +vlJWMBmBGSpCmq30vd7ZkEISBSvDQrCURG+l4kX6wkk6yFeN+sPO/Avwik+cZksk +0g0VtIkyTkwUZwzKr/bylJksH0QOHy+TkPmBSfEzrQ41TLadg9xivmnU8sOILyF9 +AgMBAAGjgZwwgZkwHQYDVR0OBBYEFLK4flD5QD/mRufsPx63xlEKM8pwMGoGA1Ud +IwRjMGGAFLK4flD5QD/mRufsPx63xlEKM8pwoT6kPDA6MQwwCgYDVQQDEwN3czIx +DDAKBgNVBAoTA3dzMjELMAkGA1UEBhMCSUUxDzANBgNVBAcTBkR1YmxpboIJAJDt +cXU2wiJIMAwGA1UdEwQFMAMBAf8wDQYJKoZIhvcNAQEFBQADggEBAEYD+CReikYr +Rzvk+/Vdi/7IcaH9CFknIdtineSIw1y98nxnbnNJqxwfNaRblbYvg6OFdUI3POuI ++rdYLCFl8z3tWqRHLkGqHSJA9xcng3jLJxz0+ctiVcekJvXaB3O6eSZjhGbmmI/s +CQhdy2zpEIVOeUq50DrSJp9CknyGu/IkaGx5GOZtkiHMrpig50CRjX1lS6qrMNYp +vB8gfuqpjsL4Ar3vg+lgMSwNWXBNHrIRPHB5VEzBEdmLFZlvueR0ooEMCklpwX/a +lFImVc6JcY1pBEkHTiTLGMpGAHG3I1aVUaWb3L+V+2ym/KNRNL5C2+1eiqql5u8m +HUaOcNC90ew= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_client.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_client.pem new file mode 100644 index 00000000000..8021de3c8a3 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_client.pem @@ -0,0 +1,45 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEpAIBAAKCAQEA0ucemqFwBFziVOgTgx4mZII4WnGDpA/rWAGHvUZOqy2dQ3Pz +woGKxBaVPAl5kxEosROVGa7dTuq5yFZ4XIGvwCKxF30vCmdGCytqq6MMp904jG32 +KikkmjCApIMGxMO4eoBHZZxiyVvKTbg9M2CRXErwnYWhFH/qGdPnuo0CEaHJA4VK +A9incT9dpeEhU30R6ajAe/je9rCj2OMLMFSMfd51L/VYfO60zDwUNY7YVIghQZgJ +e44EVGsp1pXaqaD6o3PvGY3ohw2aZjJzlJ7MJHbKV9lft98R3pklbpBzMH849cEy +Q/51L/rlfTUgCpTy7wEZpWHQNtHfu/1rhJjpNQIDAQABAoIBAQCUNIHXG/dBuZv7 +GpMLotZL7w520Co30lAJqhmfMpb5x7YpvoPffXTsUwpQBECAzqAPv7kZMT6nxF8F +n245Y5EDrd1QqlGyN9yK4Nm2/39XPygL1wITopHsIIVmFgVdpEQxIZAKoZjx8yT4 +9K1dO1Eq0CbCKzOE2lbCC51eBNUdWZIMxwC6O/j/KoIkZ/HwlG2hpUuXg8x/XawA +ZJDCoTcWHCjYP10FxKVN3vAyWM2IM44o9IbsAGEOswR4gUwRsgq6Ehc1U59XUHi+ +x30oda55I1/8xD+SfP/zk2dDPHkv/hq5+258GU/THsw2+AAexocvSIS/g9EppTEg +biFaDKzJAoGBAPqey10JeyiOlHbBjoSSa7lJYUjocQANFQ4ayOAgfNX72iyabrKF +p9sVAeO/nM00+DPrm2wWws03ScsPeh+9BDJMPRBUHfSNp7+F+oyj7PWHBEFHbyO9 +5HnYZP+1vhdG2dYPIY2gRSFXpiGn3j0M1D0w9c7Ilm8ee3krdR4E/mw3AoGBANdu +EfS1dK3+m7sEgc2+3U32z83GpuCHeUIKGPYMLI0fIb1CPpboHU9YjOFJZH9iIIdl +00JC963O3+pqLe0XbMOmBVt9QjZfhfB+AY+JHtbPgoQVLtq9X/WvW7h3xn6S971r +Crkhqay3Cs4BzsgYDYraQCTw3oq4twR9Nuy4etfzAoGAXOsG5wWe3diO/sCggFJx +Eg88vHVBgA1ZoxMXKtGgtw1bRHI1XIblRvqw6qmeDw72fvl5dEe0DbXT7C9ezemc +ZrGRaj5lpMfoS7/2trIIJrfaQgGkGRJMZUhvmcbeJW8lUJHnlMS5HLWMaKn+YZAi +GFXQrMv9ylD44mHUWD7tvV0CgYBNctPfvvCQsQ05ofgsiKa1Jbs1hmpuJCYy2MB6 +jIvjvEJ78PnhdNc8tGAJikIoDZYWN0RI+RxkDxCvDLcwGpDOkbwxVQnd1F+pwxM6 +kBhXL8kDRT5QA28hO4bk/aKN1LZeEcKMJg8C+ddXkozNoOAVgDs5TKMlCh057u41 +EmmPgwKBgQDOlYi7fPYOCy0yjHMxSrp2SZOS06AMWGbbCoGkjRtvuP+FmKSNB+LZ +pOSEPJgzjsRutKjneww4LpV6dViAyTcP5JoeQpokHf7UVo7yq2QH/iwF3zJwsC/S +OuVLkqpZzWuye/QCH5NOTfw27ye8jG8VcQW2QPbcbkLXLM7zg2yX7g== +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIC7DCCAdQCBRQHBXNJMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNVBAMTA3dzMjEM +MAoGA1UEChMDd3MyMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVibGluMB4XDTE0 +MDgwMzA5MTU0OFoXDTI0MDczMTA5MTU0OFowOjEMMAoGA1UEAxMDd3MyMQwwCgYD +VQQKEwN3czIxCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZHYWx3YXkwggEiMA0GCSqG +SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDS5x6aoXAEXOJU6BODHiZkgjhacYOkD+tY +AYe9Rk6rLZ1Dc/PCgYrEFpU8CXmTESixE5UZrt1O6rnIVnhcga/AIrEXfS8KZ0YL +K2qrowyn3TiMbfYqKSSaMICkgwbEw7h6gEdlnGLJW8pNuD0zYJFcSvCdhaEUf+oZ +0+e6jQIRockDhUoD2KdxP12l4SFTfRHpqMB7+N72sKPY4wswVIx93nUv9Vh87rTM +PBQ1jthUiCFBmAl7jgRUaynWldqpoPqjc+8ZjeiHDZpmMnOUnswkdspX2V+33xHe +mSVukHMwfzj1wTJD/nUv+uV9NSAKlPLvARmlYdA20d+7/WuEmOk1AgMBAAEwDQYJ +KoZIhvcNAQEFBQADggEBACCCAJypO9DFU6GeOH+FwE0JCLTypHoIwERWxNL7xfjg +rwVqIxwAEo+fJjL+QY7JbAb/eqKaXIBYkAF2lFc4iEmecXX/A3Aqw95AYi78o7HD +MwRPqJha9mxLcCWwjX8XK8pT152BvYFPNhi+6jd++rDRxKDfmNvgdUQ2/YW6a5Wv +zEmLDPUWRIuMQIEmOa2/JhlllDviMExTw51nbqYgCghycRvDACyQAuu8re7P6gcg +bXObNlfxcU/8Ph6MFI+2S9ODtQ4BHyuKd4kRNsYn8vV42a0h3bCYSGPk3kSIgxd7 +XijwHT/o8E9ddH2BvDv+6Nhno9C6/MbezEOIs4nlhRk= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_server.pem b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_server.pem new file mode 100644 index 00000000000..b6b48ef23f4 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/certs/ws2_server.pem @@ -0,0 +1,45 @@ +-----BEGIN RSA PRIVATE KEY----- +MIIEpQIBAAKCAQEA29iFnMf4pjty6knOt4wT0joPUlU2dGCFWxQ5Eg77Yx3Lou2a +FOzNGp7zLYH8gauOK+mgY+B9cBv8PvVtUQQKB0SKTTV8ZNKVyP3O5F2gRSJ+tHtT +FqaPfG0WPOn/f02YbOpAe6Rk+NnlJoeuBxG4uapUSq7r0mTGJQe+52y1LcMs23ID +ENBfDoUMVt5vCnF+cYK5ndeFVLyPO3JjohDH1zv3a9ECG28rtjKHLpNYFDsPJaD7 +UPuyyk3hIvfPCZoJOUlEVfpLT/lM+9oCPnq9PwIp5NqYofkuc3eKooCo7N4r4IlP +Ajktaao6b0ScNwNQB3leOIdEUFSIYy8N1JszVwIDAQABAoIBAFlIvjrGG/2m9yyf +fQyeHw6p9b8CTHNHH+G1fNgQrZe7ahBpXsJQyZueIjTBLcOb4MmEwFbPvSHiu7b2 +Bcd5VHlPJLvmlPZ9b8eJDJVCUOzC7aJu03fHfU6THwzuG42f/d9942JTiY5nL+FO +CSdl0xfUTRdnou53buFrG+TxCUPj13HP1HY6DAVzEIq1H4TZwIZo7KRRTIYpTB3P +6yvr9xsISLlnmfQ4tp2pApl5o+bHJEhr1VO6SAT/pSyShi79KmMMqYtyTmOMz7w6 +VJkre5ybnXBDN6tfMHWqdobJ4gRWK9rqf+LIZig5XQnyzkue8k+I7aPgO4xNFh56 +dkejQcECgYEA9MDCWViqpfvof+epiKzccqnIRnz1EfHdRQjiKsKGRe39+K+pyaqJ +FOOPFy3aOw6M4cFWwcdMYzKTItvzyLVhDqMzT5eup/NVqo5tPoy93XPf2qRYiTl4 +2j5wvm0RVkYEONd3pk2lbfbUmn7XQXj0+AG60SvsqErF/UhIBGec/xsCgYEA5fLC +EdiiC98kr4sVaE8G854WI+aAkStqO5YXyrnsMzRsqk8KVVYE1yCC9rYyymDBYmlx +uEW+vbWqLc8PO3v4ty3o5ff303lPMWIrvKiUldjqMjS6ncWxsQjU0bygGVgOgHO7 +c8rjiDH5M0JgWSREYUVFT5mW/5+Y1LVT8mYNlHUCgYEAhMSX6N23XGkFW3Twu2qB +/1Vohgw86OoaDNvfzDBPpFmQ3rlz0ijHSeSTd5BxBH5FICXACUgygNErjcphOSxj +JQyUxgVTQlo2y1mNm1O/nwS/lxx1xqK9ky4x/Kqvr+w1WBxSFI2kQr2V4OUTobma +sXpGvDcmnrhJJLd0EaefO6cCgYEA3Xw/S9tC8nZjqqYn34nHI16Q6tF54tpTf8Np +dT4x8Xw8cqqhRGMPVHsfSi1irKYXfwgbnienuqlBmtAHVv9pKF+TJfb7gXkmO2XY +xOYIAHGn2uYJHjCun9vmyYKLHv4/MaDH3Jd/I88mviXgEdyp9Js5UJua4utB1Rg3 +HJMJ34UCgYEAr0PpHEBMbZXZBybNU96+jRTgkrNeJpzlnMy7et2IsRAtLjZ0mpbn +NaX8i8eO+ubweqFdhOvbh7Hd0zr7BzrYcUG1e3njhtxJE1MgWL5plnLVUbIyDAm3 +iBpIHIBASNCN3sqeq+VqXvavRmeZh5O0vyLP46/kxZx0rzR/NCi9xxU= +-----END RSA PRIVATE KEY----- +-----BEGIN CERTIFICATE----- +MIIC7DCCAdQCBRQHBXNIMA0GCSqGSIb3DQEBBQUAMDoxDDAKBgNVBAMTA3dzMjEM +MAoGA1UEChMDd3MyMQswCQYDVQQGEwJJRTEPMA0GA1UEBxMGRHVibGluMB4XDTE0 +MDgwMzA5MTU0OFoXDTI0MDczMTA5MTU0OFowOjEMMAoGA1UEAxMDd3MyMQwwCgYD +VQQKEwN3czIxCzAJBgNVBAYTAklFMQ8wDQYDVQQHEwZHYWx3YXkwggEiMA0GCSqG +SIb3DQEBAQUAA4IBDwAwggEKAoIBAQDb2IWcx/imO3LqSc63jBPSOg9SVTZ0YIVb +FDkSDvtjHcui7ZoU7M0anvMtgfyBq44r6aBj4H1wG/w+9W1RBAoHRIpNNXxk0pXI +/c7kXaBFIn60e1MWpo98bRY86f9/TZhs6kB7pGT42eUmh64HEbi5qlRKruvSZMYl +B77nbLUtwyzbcgMQ0F8OhQxW3m8KcX5xgrmd14VUvI87cmOiEMfXO/dr0QIbbyu2 +Mocuk1gUOw8loPtQ+7LKTeEi988Jmgk5SURV+ktP+Uz72gI+er0/Aink2pih+S5z +d4qigKjs3ivgiU8COS1pqjpvRJw3A1AHeV44h0RQVIhjLw3UmzNXAgMBAAEwDQYJ +KoZIhvcNAQEFBQADggEBALi/RmqeXGazT/WRj9+ZqdcnbcHwK5wwr2/YkpFPJ0Hf +ZDm+2vgjDdTT6cJS6fau0M5nliYdz89aQQo1j9RSRZnzlc/2YCFXyRLCOJYaINbj +1MEUAvNDGL7xTpepK9hVkXASRkbyNXERXRKFI1N+vpKu6UorT6/osEV/qM+MFJ3s +24xE8/J3J4MirVQVt6eY6Jb+tkliOPMIugr6YQlLsqJygEWATP8Qsr81XSfcZhVq +rXzVt7QV8dO0nStMjKK5omrtEAhVnASk7w1tFHkpBF1rqXGoo9ML40RnFZ+E5zqi +iZtzp+NzzLnEnWMNs+fJpPJ96P0kbq2bQzuSBcUynq0= +-----END CERTIFICATE----- diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/net_skeleton.h b/3rdparty/mongoose/examples/websocket_ssl_proxy/net_skeleton.h new file mode 100644 index 00000000000..4d1c33fc820 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/net_skeleton.h @@ -0,0 +1,253 @@ +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// This software is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this software under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this software under a commercial +// license, as set out in . +// +// $Date: 2014-09-28 05:04:41 UTC $ + +#ifndef NS_SKELETON_HEADER_INCLUDED +#define NS_SKELETON_HEADER_INCLUDED + +#define NS_SKELETON_VERSION "2.1.0" + +#undef UNICODE // Use ANSI WinAPI functions +#undef _UNICODE // Use multibyte encoding on Windows +#define _MBCS // Use multibyte encoding on Windows +#define _INTEGRAL_MAX_BITS 64 // Enable _stati64() on Windows +#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005+ +#undef WIN32_LEAN_AND_MEAN // Let windows.h always include winsock2.h +#define _XOPEN_SOURCE 600 // For flockfile() on Linux +#define __STDC_FORMAT_MACROS // wants this for C++ +#define __STDC_LIMIT_MACROS // C++ wants that for INT64_MAX +#ifndef _LARGEFILE_SOURCE +#define _LARGEFILE_SOURCE // Enable fseeko() and ftello() functions +#endif +#define _FILE_OFFSET_BITS 64 // Enable 64-bit file offsets + +#ifdef _MSC_VER +#pragma warning (disable : 4127) // FD_SET() emits warning, disable it +#pragma warning (disable : 4204) // missing c99 support +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#ifdef _MSC_VER +#pragma comment(lib, "ws2_32.lib") // Linking with winsock library +#endif +#include +#include +#ifndef EINPROGRESS +#define EINPROGRESS WSAEINPROGRESS +#endif +#ifndef EWOULDBLOCK +#define EWOULDBLOCK WSAEWOULDBLOCK +#endif +#ifndef __func__ +#define STRX(x) #x +#define STR(x) STRX(x) +#define __func__ __FILE__ ":" STR(__LINE__) +#endif +#ifndef va_copy +#define va_copy(x,y) x = y +#endif // MINGW #defines va_copy +#define snprintf _snprintf +#define vsnprintf _vsnprintf +#define sleep(x) Sleep((x) * 1000) +#define to64(x) _atoi64(x) +typedef int socklen_t; +typedef unsigned char uint8_t; +typedef unsigned int uint32_t; +typedef unsigned short uint16_t; +typedef unsigned __int64 uint64_t; +typedef __int64 int64_t; +typedef SOCKET sock_t; +typedef struct _stati64 ns_stat_t; +#ifndef S_ISDIR +#define S_ISDIR(x) ((x) & _S_IFDIR) +#endif +#else +#include +#include +#include +#include +#include +#include +#include // For inet_pton() when NS_ENABLE_IPV6 is defined +#include +#include +#include +#define closesocket(x) close(x) +#define __cdecl +#define INVALID_SOCKET (-1) +#define to64(x) strtoll(x, NULL, 10) +typedef int sock_t; +typedef struct stat ns_stat_t; +#endif + +#ifdef NS_ENABLE_DEBUG +#define DBG(x) do { printf("%-20s ", __func__); printf x; putchar('\n'); \ + fflush(stdout); } while(0) +#else +#define DBG(x) +#endif + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0])) +#endif + +#ifdef NS_ENABLE_SSL +#ifdef __APPLE__ +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif +#include +#else +typedef void *SSL; +typedef void *SSL_CTX; +#endif + +#ifdef __cplusplus +extern "C" { +#endif // __cplusplus + +union socket_address { + struct sockaddr sa; + struct sockaddr_in sin; +#ifdef NS_ENABLE_IPV6 + struct sockaddr_in6 sin6; +#else + struct sockaddr sin6; +#endif +}; + +// Describes chunk of memory +struct ns_str { + const char *p; + size_t len; +}; + +// IO buffers interface +struct iobuf { + char *buf; + size_t len; + size_t size; +}; + +void iobuf_init(struct iobuf *, size_t initial_size); +void iobuf_free(struct iobuf *); +size_t iobuf_append(struct iobuf *, const void *data, size_t data_size); +void iobuf_remove(struct iobuf *, size_t data_size); +void iobuf_resize(struct iobuf *, size_t new_size); + +// Callback function (event handler) prototype, must be defined by user. +// Net skeleton will call event handler, passing events defined above. +struct ns_connection; +typedef void (*ns_callback_t)(struct ns_connection *, int event_num, void *evp); + +// Events. Meaning of event parameter (evp) is given in the comment. +#define NS_POLL 0 // Sent to each connection on each call to ns_mgr_poll() +#define NS_ACCEPT 1 // New connection accept()-ed. union socket_address *addr +#define NS_CONNECT 2 // connect() succeeded or failed. int *success_status +#define NS_RECV 3 // Data has benn received. int *num_bytes +#define NS_SEND 4 // Data has been written to a socket. int *num_bytes +#define NS_CLOSE 5 // Connection is closed. NULL + + +struct ns_mgr { + struct ns_connection *active_connections; + const char *hexdump_file; // Debug hexdump file path + sock_t ctl[2]; // Socketpair for mg_wakeup() + void *user_data; // User data +}; + + +struct ns_connection { + struct ns_connection *next, *prev; // ns_mgr::active_connections linkage + struct ns_connection *listener; // Set only for accept()-ed connections + struct ns_mgr *mgr; + + sock_t sock; // Socket + union socket_address sa; // Peer address + struct iobuf recv_iobuf; // Received data + struct iobuf send_iobuf; // Data scheduled for sending + SSL *ssl; + SSL_CTX *ssl_ctx; + void *user_data; // User-specific data + void *proto_data; // Application protocol-specific data + time_t last_io_time; // Timestamp of the last socket IO + ns_callback_t callback; // Event handler function + + unsigned int flags; +#define NSF_FINISHED_SENDING_DATA (1 << 0) +#define NSF_BUFFER_BUT_DONT_SEND (1 << 1) +#define NSF_SSL_HANDSHAKE_DONE (1 << 2) +#define NSF_CONNECTING (1 << 3) +#define NSF_CLOSE_IMMEDIATELY (1 << 4) +#define NSF_WANT_READ (1 << 5) +#define NSF_WANT_WRITE (1 << 6) +#define NSF_LISTENING (1 << 7) +#define NSF_UDP (1 << 8) + +#define NSF_USER_1 (1 << 20) +#define NSF_USER_2 (1 << 21) +#define NSF_USER_3 (1 << 22) +#define NSF_USER_4 (1 << 23) +#define NSF_USER_5 (1 << 24) +#define NSF_USER_6 (1 << 25) +}; + +void ns_mgr_init(struct ns_mgr *, void *user_data); +void ns_mgr_free(struct ns_mgr *); +time_t ns_mgr_poll(struct ns_mgr *, int milli); +void ns_broadcast(struct ns_mgr *, ns_callback_t, void *, size_t); + +struct ns_connection *ns_next(struct ns_mgr *, struct ns_connection *); +struct ns_connection *ns_add_sock(struct ns_mgr *, sock_t, + ns_callback_t, void *); +struct ns_connection *ns_bind(struct ns_mgr *, const char *, + ns_callback_t, void *); +struct ns_connection *ns_connect(struct ns_mgr *, const char *, + ns_callback_t, void *); + +int ns_send(struct ns_connection *, const void *buf, int len); +int ns_printf(struct ns_connection *, const char *fmt, ...); +int ns_vprintf(struct ns_connection *, const char *fmt, va_list ap); + +// Utility functions +void *ns_start_thread(void *(*f)(void *), void *p); +int ns_socketpair(sock_t [2]); +int ns_socketpair2(sock_t [2], int sock_type); // SOCK_STREAM or SOCK_DGRAM +void ns_set_close_on_exec(sock_t); +void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags); +int ns_hexdump(const void *buf, int len, char *dst, int dst_len); +int ns_avprintf(char **buf, size_t size, const char *fmt, va_list ap); +int ns_resolve(const char *domain_name, char *ip_addr_buf, size_t buf_len); + +#ifdef __cplusplus +} +#endif // __cplusplus + +#endif // NS_SKELETON_HEADER_INCLUDED diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.c b/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.c new file mode 100644 index 00000000000..969aa979345 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.c @@ -0,0 +1,123 @@ +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// This software is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this software under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this software under a commercial +// license, as set out in . +// +// $Date$ + +#include "net_skeleton.h" +#include "ssl_wrapper.h" + +static void ev_handler(struct ns_connection *nc, int ev, void *p) { + const char *target_addr = (const char *) nc->mgr->user_data; + struct ns_connection *pc = (struct ns_connection *) nc->user_data; + struct iobuf *io = &nc->recv_iobuf; + + (void) p; + switch (ev) { + case NS_ACCEPT: + // Create a connection to the target, and interlink both connections + nc->user_data = ns_connect(nc->mgr, target_addr, ev_handler, nc); + if (nc->user_data == NULL) { + nc->flags |= NSF_CLOSE_IMMEDIATELY; + } + break; + + case NS_CLOSE: + // If either connection closes, unlink them and shedule closing + if (pc != NULL) { + pc->flags |= NSF_FINISHED_SENDING_DATA; + pc->user_data = NULL; + } + nc->user_data = NULL; + break; + + case NS_RECV: + // Forward arrived data to the other connection, and discard from buffer + if (pc != NULL) { + ns_send(pc, io->buf, io->len); + iobuf_remove(io, io->len); + } + break; + + default: + break; + } +} + +void *ssl_wrapper_init(const char *local_addr, const char *target_addr, + const char **err_msg) { + struct ns_mgr *mgr = (struct ns_mgr *) calloc(1, sizeof(mgr[0])); + *err_msg = NULL; + + if (mgr == NULL) { + *err_msg = "malloc failed"; + } else { + ns_mgr_init(mgr, (void *) target_addr); + if (ns_bind(mgr, local_addr, ev_handler, NULL) == NULL) { + *err_msg = "ns_bind() failed: bad listening_port"; + ns_mgr_free(mgr); + free(mgr); + mgr = NULL; + } + } + + return mgr; +} + +void ssl_wrapper_serve(void *param, volatile int *quit) { + struct ns_mgr *mgr = (struct ns_mgr *) param; + + while (*quit == 0) { + ns_mgr_poll(mgr, 1000); + } + ns_mgr_free(mgr); + free(mgr); +} + +#ifndef SSL_WRAPPER_USE_AS_LIBRARY +static int s_received_signal = 0; + +static void signal_handler(int sig_num) { + signal(sig_num, signal_handler); + s_received_signal = sig_num; +} + +static void show_usage_and_exit(const char *prog) { + fprintf(stderr, "Usage: %s \n", prog); + exit(EXIT_FAILURE); +} + +int main(int argc, char *argv[]) { + void *wrapper; + const char *err_msg; + + if (argc != 3) { + show_usage_and_exit(argv[0]); + } + + // Setup signal handlers + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + signal(SIGPIPE, SIG_IGN); + + if ((wrapper = ssl_wrapper_init(argv[1], argv[2], &err_msg)) == NULL) { + fprintf(stderr, "Error: %s\n", err_msg); + exit(EXIT_FAILURE); + } + ssl_wrapper_serve(wrapper, &s_received_signal); + + return EXIT_SUCCESS; +} +#endif // SSL_WRAPPER_USE_AS_LIBRARY diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.h b/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.h new file mode 100644 index 00000000000..ccdf780556c --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/ssl_wrapper.h @@ -0,0 +1,34 @@ +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// This software is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this software under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this software under a commercial +// license, as set out in . +// +// $Date$ + +#ifndef SSL_WRAPPER_HEADER_INCLUDED +#define SSL_WRAPPER_HEADER_INCLUDED + +#ifdef __cplusplus +extern "C" { +#endif // __cplusplus + +void *ssl_wrapper_init(const char *listen_addr, const char *target_addr, + const char **err_msg); +void ssl_wrapper_serve(void *, volatile int *stop_marker); + +#ifdef __cplusplus +} +#endif // __cplusplus + +#endif // SSL_WRAPPER_HEADER_INCLUDED diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.c b/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.c new file mode 100644 index 00000000000..d2fceee650e --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.c @@ -0,0 +1,182 @@ +// Copyright (c) 2014 Cesanta Software +// All rights reserved +// +// This example demostrates proxying of WebSocket traffic, regardless of the +// protocol (ws:// or wss://). +// To use this example: +// 1. configure your browser to use a proxy on port 2014 +// 2. import certs/ws1_ca.pem and certs/ws2_ca.pem into the trusted +// certificates list on your browser +// 3. make && ./ws_ssl +// 4. Point your browser to http://ws_ssl.com +// A page with 4 sections should appear, showing websocket echoes + +#include "net_skeleton.h" +#include "mongoose.h" +#include "ssl_wrapper.h" + +#define S1_PEM "certs/ws1_server.pem" +#define C1_PEM "certs/ws1_client.pem" +#define CA1_PEM "certs/ws1_ca.pem" +#define S2_PEM "certs/ws2_server.pem" +#define C2_PEM "certs/ws2_client.pem" +#define CA2_PEM "certs/ws2_ca.pem" + +struct config { + const char *uri; + const char *wrapper_server_addr; + const char *wrapper_client_addr; + const char *target_addr; +}; + +static struct config s_wrappers[] = { + { + "ws1:80", + "tcp://127.0.0.1:7001", + "tcp://127.0.0.1:7001", + "tcp://127.0.0.1:9001" + }, + { + "ws1:443", + "ssl://127.0.0.1:7002:" S1_PEM, + "tcp://127.0.0.1:7002", + "tcp://127.0.0.1:9001" + }, + { + "ws2:80", + "tcp://127.0.0.1:7003", + "tcp://127.0.0.1:7003", + "ssl://127.0.0.1:9002:" C2_PEM ":" CA2_PEM + }, + { + "ws2:443", + "ssl://127.0.0.1:7004:" S2_PEM, + "tcp://127.0.0.1:7004", + "ssl://127.0.0.1:9002:" C2_PEM ":" CA2_PEM + }, +}; + +static int s_received_signal = 0; + +static void signal_handler(int sig_num) { + signal(sig_num, signal_handler); + s_received_signal = sig_num; +} + +static int ev_handler(struct mg_connection *conn, enum mg_event ev) { + int i; + + switch (ev) { + case MG_AUTH: + return MG_TRUE; + + case MG_REQUEST: + printf("==> [%s] [%s]\n", conn->request_method, conn->uri); + + if (strcmp(conn->request_method, "CONNECT") == 0) { + // Iterate over configured wrappers, see if we can use one of them + for (i = 0; i < (int) ARRAY_SIZE(s_wrappers); i++) { + if (strcmp(conn->uri, s_wrappers[i].uri) == 0) { + mg_forward(conn, s_wrappers[i].wrapper_client_addr); + return MG_MORE; + } + } + + // No suitable wrappers found. Disallow that CONNECT request. + mg_send_status(conn, 405); + return MG_TRUE; + } + + // Not a CONNECT request, serve HTML file. + mg_send_file(conn, "ws_ssl.html", NULL); + return MG_MORE; + + default: + return MG_FALSE; + } +} + +static int ws_handler(struct mg_connection *conn, enum mg_event ev) { + switch (ev) { + case MG_AUTH: + return MG_TRUE; + case MG_REQUEST: + if (conn->is_websocket) { + // Simple websocket echo server + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, + conn->content, conn->content_len); + } else { + mg_printf_data(conn, "%s", "websocket connection expected"); + } + return MG_TRUE; + default: + return MG_FALSE; + } +} + +static void *serve_thread_func(void *param) { + struct mg_server *server = (struct mg_server *) param; + printf("Listening on port %s\n", mg_get_option(server, "listening_port")); + while (s_received_signal == 0) { + mg_poll_server(server, 1000); + } + mg_destroy_server(&server); + return NULL; +} + +static void *wrapper_thread_func(void *param) { + struct config *c = (struct config *) param; + const char *err_msg; + void *wrapper; + + wrapper = ssl_wrapper_init(c->wrapper_server_addr, c->target_addr, &err_msg); + if (wrapper == NULL) { + fprintf(stderr, "Error: %s\n", err_msg); + exit(EXIT_FAILURE); + } + //((struct ns_mgr *) wrapper)->hexdump_file = "/dev/stderr"; + ssl_wrapper_serve(wrapper, &s_received_signal); + + return NULL; +} + +int main(void) { + struct mg_server *proxy_server = mg_create_server(NULL, ev_handler); + struct mg_server *ws1_server = mg_create_server(NULL, ws_handler); + struct mg_server *ws2_server = mg_create_server(NULL, ws_handler); + size_t i; + + ((struct ns_mgr *) proxy_server)->hexdump_file = "/dev/stderr"; + + // Configure proxy server to listen on port 2014 + mg_set_option(proxy_server, "listening_port", "2014"); + //mg_set_option(proxy_server, "enable_proxy", "yes"); + + // Configure two websocket echo servers: + // ws1 is WS, listening on 9001 + // ws2 is WSS, listening on 9002 + // Note that HTML page thinks that ws1 is WSS, and ws2 is WS, + // where in reality it is vice versa and proxy server makes the decision. + mg_set_option(ws1_server, "listening_port", "tcp://127.0.0.1:9001"); + mg_set_option(ws2_server, "listening_port", + "ssl://127.0.0.1:9002:" S2_PEM ":" CA2_PEM); + + // Setup signal handlers + signal(SIGTERM, signal_handler); + signal(SIGINT, signal_handler); + + // Start SSL wrappers, each in it's own thread + for (i = 0; i < ARRAY_SIZE(s_wrappers); i++) { + ns_start_thread(wrapper_thread_func, &s_wrappers[i]); + } + + // Start websocket servers in separate threads + mg_start_thread(serve_thread_func, ws1_server); + mg_start_thread(serve_thread_func, ws2_server); + + // Finally, start proxy server in this thread: this call blocks + serve_thread_func(proxy_server); + + printf("Existing on signal %d\n", s_received_signal); + return EXIT_SUCCESS; +} diff --git a/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.html b/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.html new file mode 100644 index 00000000000..23ab2506145 --- /dev/null +++ b/3rdparty/mongoose/examples/websocket_ssl_proxy/ws_ssl.html @@ -0,0 +1,50 @@ + + + Websocket Proxy SSL Test + + + + + + + \ No newline at end of file diff --git a/3rdparty/mongoose/jni/Android.mk b/3rdparty/mongoose/jni/Android.mk new file mode 100644 index 00000000000..3a7daa061c1 --- /dev/null +++ b/3rdparty/mongoose/jni/Android.mk @@ -0,0 +1,8 @@ +LOCAL_PATH := $(call my-dir)/.. +include $(CLEAR_VARS) + +LOCAL_CFLAGS := -std=c99 -O2 -W -Wall -pthread -pipe $(COPT) +LOCAL_MODULE := mongoose +LOCAL_SRC_FILES := examples/web_server/web_server.c mongoose.c + +include $(BUILD_EXECUTABLE) diff --git a/3rdparty/mongoose/mongoose.c b/3rdparty/mongoose/mongoose.c new file mode 100644 index 00000000000..0cacdfed470 --- /dev/null +++ b/3rdparty/mongoose/mongoose.c @@ -0,0 +1,5287 @@ +// Copyright (c) 2004-2013 Sergey Lyubka +// Copyright (c) 2013-2014 Cesanta Software Limited +// All rights reserved +// +// This library is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this library under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this library under a commercial +// license, as set out in . + +#ifdef NOEMBED_NET_SKELETON +#include "net_skeleton.h" +#else +// net_skeleton start +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// This software is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this software under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this software under a commercial +// license, as set out in . +// +// $Date: 2014-09-28 05:04:41 UTC $ + +#ifndef NS_SKELETON_HEADER_INCLUDED +#define NS_SKELETON_HEADER_INCLUDED + +#define NS_SKELETON_VERSION "2.1.0" + +#undef UNICODE // Use ANSI WinAPI functions +#undef _UNICODE // Use multibyte encoding on Windows +#define _MBCS // Use multibyte encoding on Windows +#define _INTEGRAL_MAX_BITS 64 // Enable _stati64() on Windows +#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005+ +#undef WIN32_LEAN_AND_MEAN // Let windows.h always include winsock2.h +#define _XOPEN_SOURCE 600 // For flockfile() on Linux +#define __STDC_FORMAT_MACROS // wants this for C++ +#define __STDC_LIMIT_MACROS // C++ wants that for INT64_MAX +#ifndef _LARGEFILE_SOURCE +#define _LARGEFILE_SOURCE // Enable fseeko() and ftello() functions +#endif +#define _FILE_OFFSET_BITS 64 // Enable 64-bit file offsets + +#ifdef _MSC_VER +#pragma warning (disable : 4127) // FD_SET() emits warning, disable it +#pragma warning (disable : 4204) // missing c99 support +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef _WIN32 +#ifdef _MSC_VER +#pragma comment(lib, "ws2_32.lib") // Linking with winsock library +#endif +#include +#include +#ifndef EINPROGRESS +#define EINPROGRESS WSAEINPROGRESS +#endif +#ifndef EWOULDBLOCK +#define EWOULDBLOCK WSAEWOULDBLOCK +#endif +#ifndef __func__ +#define STRX(x) #x +#define STR(x) STRX(x) +#define __func__ __FILE__ ":" STR(__LINE__) +#endif +#ifndef va_copy +#define va_copy(x,y) x = y +#endif // MINGW #defines va_copy +#define snprintf _snprintf +#define vsnprintf _vsnprintf +#define sleep(x) Sleep((x) * 1000) +#define to64(x) _atoi64(x) +typedef int socklen_t; +typedef unsigned char uint8_t; +typedef unsigned int uint32_t; +typedef unsigned short uint16_t; +typedef unsigned __int64 uint64_t; +typedef __int64 int64_t; +typedef SOCKET sock_t; +typedef struct _stati64 ns_stat_t; +#ifndef S_ISDIR +#define S_ISDIR(x) ((x) & _S_IFDIR) +#endif +#else +#include +#include +#include +#include +#include +#include +#include // For inet_pton() when NS_ENABLE_IPV6 is defined +#include +#include +#include +#define closesocket(x) close(x) +#define __cdecl +#define INVALID_SOCKET (-1) +#define to64(x) strtoll(x, NULL, 10) +typedef int sock_t; +typedef struct stat ns_stat_t; +#endif + +#ifdef NS_ENABLE_DEBUG +#define DBG(x) do { printf("%-20s ", __func__); printf x; putchar('\n'); \ + fflush(stdout); } while(0) +#else +#define DBG(x) +#endif + +#ifndef ARRAY_SIZE +#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0])) +#endif + +#ifdef NS_ENABLE_SSL +#ifdef __APPLE__ +#pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif +#include +#else +typedef void *SSL; +typedef void *SSL_CTX; +#endif + +#ifdef __cplusplus +extern "C" { +#endif // __cplusplus + +union socket_address { + struct sockaddr sa; + struct sockaddr_in sin; +#ifdef NS_ENABLE_IPV6 + struct sockaddr_in6 sin6; +#else + struct sockaddr sin6; +#endif +}; + +// Describes chunk of memory +struct ns_str { + const char *p; + size_t len; +}; + +// IO buffers interface +struct iobuf { + char *buf; + size_t len; + size_t size; +}; + +void iobuf_init(struct iobuf *, size_t initial_size); +void iobuf_free(struct iobuf *); +size_t iobuf_append(struct iobuf *, const void *data, size_t data_size); +void iobuf_remove(struct iobuf *, size_t data_size); +void iobuf_resize(struct iobuf *, size_t new_size); + +// Callback function (event handler) prototype, must be defined by user. +// Net skeleton will call event handler, passing events defined above. +struct ns_connection; +typedef void (*ns_callback_t)(struct ns_connection *, int event_num, void *evp); + +// Events. Meaning of event parameter (evp) is given in the comment. +#define NS_POLL 0 // Sent to each connection on each call to ns_mgr_poll() +#define NS_ACCEPT 1 // New connection accept()-ed. union socket_address *addr +#define NS_CONNECT 2 // connect() succeeded or failed. int *success_status +#define NS_RECV 3 // Data has benn received. int *num_bytes +#define NS_SEND 4 // Data has been written to a socket. int *num_bytes +#define NS_CLOSE 5 // Connection is closed. NULL + + +struct ns_mgr { + struct ns_connection *active_connections; + const char *hexdump_file; // Debug hexdump file path + sock_t ctl[2]; // Socketpair for mg_wakeup() + void *user_data; // User data +}; + + +struct ns_connection { + struct ns_connection *next, *prev; // ns_mgr::active_connections linkage + struct ns_connection *listener; // Set only for accept()-ed connections + struct ns_mgr *mgr; + + sock_t sock; // Socket + union socket_address sa; // Peer address + struct iobuf recv_iobuf; // Received data + struct iobuf send_iobuf; // Data scheduled for sending + SSL *ssl; + SSL_CTX *ssl_ctx; + void *user_data; // User-specific data + void *proto_data; // Application protocol-specific data + time_t last_io_time; // Timestamp of the last socket IO + ns_callback_t callback; // Event handler function + + unsigned int flags; +#define NSF_FINISHED_SENDING_DATA (1 << 0) +#define NSF_BUFFER_BUT_DONT_SEND (1 << 1) +#define NSF_SSL_HANDSHAKE_DONE (1 << 2) +#define NSF_CONNECTING (1 << 3) +#define NSF_CLOSE_IMMEDIATELY (1 << 4) +#define NSF_WANT_READ (1 << 5) +#define NSF_WANT_WRITE (1 << 6) +#define NSF_LISTENING (1 << 7) +#define NSF_UDP (1 << 8) + +#define NSF_USER_1 (1 << 20) +#define NSF_USER_2 (1 << 21) +#define NSF_USER_3 (1 << 22) +#define NSF_USER_4 (1 << 23) +#define NSF_USER_5 (1 << 24) +#define NSF_USER_6 (1 << 25) +}; + +void ns_mgr_init(struct ns_mgr *, void *user_data); +void ns_mgr_free(struct ns_mgr *); +time_t ns_mgr_poll(struct ns_mgr *, int milli); +void ns_broadcast(struct ns_mgr *, ns_callback_t, void *, size_t); + +struct ns_connection *ns_next(struct ns_mgr *, struct ns_connection *); +struct ns_connection *ns_add_sock(struct ns_mgr *, sock_t, + ns_callback_t, void *); +struct ns_connection *ns_bind(struct ns_mgr *, const char *, + ns_callback_t, void *); +struct ns_connection *ns_connect(struct ns_mgr *, const char *, + ns_callback_t, void *); + +int ns_send(struct ns_connection *, const void *buf, int len); +int ns_printf(struct ns_connection *, const char *fmt, ...); +int ns_vprintf(struct ns_connection *, const char *fmt, va_list ap); + +// Utility functions +void *ns_start_thread(void *(*f)(void *), void *p); +int ns_socketpair(sock_t [2]); +int ns_socketpair2(sock_t [2], int sock_type); // SOCK_STREAM or SOCK_DGRAM +void ns_set_close_on_exec(sock_t); +void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags); +int ns_hexdump(const void *buf, int len, char *dst, int dst_len); +int ns_avprintf(char **buf, size_t size, const char *fmt, va_list ap); +int ns_resolve(const char *domain_name, char *ip_addr_buf, size_t buf_len); + +#ifdef __cplusplus +} +#endif // __cplusplus + +#endif // NS_SKELETON_HEADER_INCLUDED +// Copyright (c) 2014 Cesanta Software Limited +// All rights reserved +// +// This software is dual-licensed: you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. For the terms of this +// license, see . +// +// You are free to use this software under the terms of the GNU General +// Public License, but WITHOUT ANY WARRANTY; without even the implied +// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +// See the GNU General Public License for more details. +// +// Alternatively, you can license this software under a commercial +// license, as set out in . +// +// $Date: 2014-09-28 05:04:41 UTC $ + + +#ifndef NS_MALLOC +#define NS_MALLOC malloc +#endif + +#ifndef NS_REALLOC +#define NS_REALLOC realloc +#endif + +#ifndef NS_FREE +#define NS_FREE free +#endif + +#ifndef NS_CALLOC +#define NS_CALLOC calloc +#endif + +#define NS_CTL_MSG_MESSAGE_SIZE (8 * 1024) +#define NS_READ_BUFFER_SIZE 2048 +#define NS_UDP_RECEIVE_BUFFER_SIZE 2000 +#define NS_VPRINTF_BUFFER_SIZE 500 + +struct ctl_msg { + ns_callback_t callback; + char message[NS_CTL_MSG_MESSAGE_SIZE]; +}; + +void iobuf_resize(struct iobuf *io, size_t new_size) { + char *p; + if ((new_size > io->size || (new_size < io->size && new_size >= io->len)) && + (p = (char *) NS_REALLOC(io->buf, new_size)) != NULL) { + io->size = new_size; + io->buf = p; + } +} + +void iobuf_init(struct iobuf *iobuf, size_t initial_size) { + iobuf->len = iobuf->size = 0; + iobuf->buf = NULL; + iobuf_resize(iobuf, initial_size); +} + +void iobuf_free(struct iobuf *iobuf) { + if (iobuf != NULL) { + if (iobuf->buf != NULL) NS_FREE(iobuf->buf); + iobuf_init(iobuf, 0); + } +} + +size_t iobuf_append(struct iobuf *io, const void *buf, size_t len) { + char *p = NULL; + + assert(io != NULL); + assert(io->len <= io->size); + + if (len <= 0) { + } else if (io->len + len <= io->size) { + memcpy(io->buf + io->len, buf, len); + io->len += len; + } else if ((p = (char *) NS_REALLOC(io->buf, io->len + len)) != NULL) { + io->buf = p; + memcpy(io->buf + io->len, buf, len); + io->len += len; + io->size = io->len; + } else { + len = 0; + } + + return len; +} + +void iobuf_remove(struct iobuf *io, size_t n) { + if (n > 0 && n <= io->len) { + memmove(io->buf, io->buf + n, io->len - n); + io->len -= n; + } +} + +static size_t ns_out(struct ns_connection *nc, const void *buf, size_t len) { + if (nc->flags & NSF_UDP) { + long n = sendto(nc->sock, buf, len, 0, &nc->sa.sa, sizeof(nc->sa.sin)); + DBG(("%p %d send %ld (%d %s)", nc, nc->sock, n, errno, strerror(errno))); + return n < 0 ? 0 : n; + } else { + return iobuf_append(&nc->send_iobuf, buf, len); + } +} + +#ifndef NS_DISABLE_THREADS +void *ns_start_thread(void *(*f)(void *), void *p) { +#ifdef _WIN32 + return (void *) _beginthread((void (__cdecl *)(void *)) f, 0, p); +#else + pthread_t thread_id = (pthread_t) 0; + pthread_attr_t attr; + + (void) pthread_attr_init(&attr); + (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); + +#if defined(NS_STACK_SIZE) && NS_STACK_SIZE > 1 + (void) pthread_attr_setstacksize(&attr, NS_STACK_SIZE); +#endif + + pthread_create(&thread_id, &attr, f, p); + pthread_attr_destroy(&attr); + + return (void *) thread_id; +#endif +} +#endif // NS_DISABLE_THREADS + +static void ns_add_conn(struct ns_mgr *mgr, struct ns_connection *c) { + c->next = mgr->active_connections; + mgr->active_connections = c; + c->prev = NULL; + if (c->next != NULL) c->next->prev = c; +} + +static void ns_remove_conn(struct ns_connection *conn) { + if (conn->prev == NULL) conn->mgr->active_connections = conn->next; + if (conn->prev) conn->prev->next = conn->next; + if (conn->next) conn->next->prev = conn->prev; +} + +// Print message to buffer. If buffer is large enough to hold the message, +// return buffer. If buffer is to small, allocate large enough buffer on heap, +// and return allocated buffer. +int ns_avprintf(char **buf, size_t size, const char *fmt, va_list ap) { + va_list ap_copy; + int len; + + va_copy(ap_copy, ap); + len = vsnprintf(*buf, size, fmt, ap_copy); + va_end(ap_copy); + + if (len < 0) { + // eCos and Windows are not standard-compliant and return -1 when + // the buffer is too small. Keep allocating larger buffers until we + // succeed or out of memory. + *buf = NULL; + while (len < 0) { + if (*buf) NS_FREE(*buf); + size *= 2; + if ((*buf = (char *) NS_MALLOC(size)) == NULL) break; + va_copy(ap_copy, ap); + len = vsnprintf(*buf, size, fmt, ap_copy); + va_end(ap_copy); + } + } else if (len > (int) size) { + // Standard-compliant code path. Allocate a buffer that is large enough. + if ((*buf = (char *) NS_MALLOC(len + 1)) == NULL) { + len = -1; + } else { + va_copy(ap_copy, ap); + len = vsnprintf(*buf, len + 1, fmt, ap_copy); + va_end(ap_copy); + } + } + + return len; +} + +int ns_vprintf(struct ns_connection *nc, const char *fmt, va_list ap) { + char mem[NS_VPRINTF_BUFFER_SIZE], *buf = mem; + int len; + + if ((len = ns_avprintf(&buf, sizeof(mem), fmt, ap)) > 0) { + ns_out(nc, buf, len); + } + if (buf != mem && buf != NULL) { + NS_FREE(buf); + } + + return len; +} + +int ns_printf(struct ns_connection *conn, const char *fmt, ...) { + int len; + va_list ap; + va_start(ap, fmt); + len = ns_vprintf(conn, fmt, ap); + va_end(ap); + return len; +} + +static void hexdump(struct ns_connection *nc, const char *path, + int num_bytes, int ev) { + const struct iobuf *io = ev == NS_SEND ? &nc->send_iobuf : &nc->recv_iobuf; + FILE *fp; + char *buf, src[60], dst[60]; + int buf_size = num_bytes * 5 + 100; + + if ((fp = fopen(path, "a")) != NULL) { + ns_sock_to_str(nc->sock, src, sizeof(src), 3); + ns_sock_to_str(nc->sock, dst, sizeof(dst), 7); + fprintf(fp, "%lu %p %s %s %s %d\n", (unsigned long) time(NULL), + nc->user_data, src, + ev == NS_RECV ? "<-" : ev == NS_SEND ? "->" : + ev == NS_ACCEPT ? "" : "XX", + dst, num_bytes); + if (num_bytes > 0 && (buf = (char *) NS_MALLOC(buf_size)) != NULL) { + ns_hexdump(io->buf + (ev == NS_SEND ? 0 : io->len) - + (ev == NS_SEND ? 0 : num_bytes), num_bytes, buf, buf_size); + fprintf(fp, "%s", buf); + NS_FREE(buf); + } + fclose(fp); + } +} + +static void ns_call(struct ns_connection *nc, int ev, void *p) { + if (nc->mgr->hexdump_file != NULL && ev != NS_POLL) { + int len = (ev == NS_RECV || ev == NS_SEND) ? * (int *) p : 0; + hexdump(nc, nc->mgr->hexdump_file, len, ev); + } + + nc->callback(nc, ev, p); +} + +static void ns_destroy_conn(struct ns_connection *conn) { + closesocket(conn->sock); + iobuf_free(&conn->recv_iobuf); + iobuf_free(&conn->send_iobuf); +#ifdef NS_ENABLE_SSL + if (conn->ssl != NULL) { + SSL_free(conn->ssl); + } + if (conn->ssl_ctx != NULL) { + SSL_CTX_free(conn->ssl_ctx); + } +#endif + NS_FREE(conn); +} + +static void ns_close_conn(struct ns_connection *conn) { + DBG(("%p %d", conn, conn->flags)); + ns_call(conn, NS_CLOSE, NULL); + ns_remove_conn(conn); + ns_destroy_conn(conn); +} + +void ns_set_close_on_exec(sock_t sock) { +#ifdef _WIN32 + (void) SetHandleInformation((HANDLE) sock, HANDLE_FLAG_INHERIT, 0); +#else + fcntl(sock, F_SETFD, FD_CLOEXEC); +#endif +} + +static void ns_set_non_blocking_mode(sock_t sock) { +#ifdef _WIN32 + unsigned long on = 1; + ioctlsocket(sock, FIONBIO, &on); +#else + int flags = fcntl(sock, F_GETFL, 0); + fcntl(sock, F_SETFL, flags | O_NONBLOCK); +#endif +} + +#ifndef NS_DISABLE_SOCKETPAIR +int ns_socketpair2(sock_t sp[2], int sock_type) { + union socket_address sa; + sock_t sock; + socklen_t len = sizeof(sa.sin); + int ret = 0; + + sp[0] = sp[1] = INVALID_SOCKET; + + (void) memset(&sa, 0, sizeof(sa)); + sa.sin.sin_family = AF_INET; + sa.sin.sin_port = htons(0); + sa.sin.sin_addr.s_addr = htonl(0x7f000001); + + if ((sock = socket(AF_INET, sock_type, 0)) != INVALID_SOCKET && + !bind(sock, &sa.sa, len) && + (sock_type == SOCK_DGRAM || !listen(sock, 1)) && + !getsockname(sock, &sa.sa, &len) && + (sp[0] = socket(AF_INET, sock_type, 0)) != INVALID_SOCKET && + !connect(sp[0], &sa.sa, len) && + (sock_type == SOCK_STREAM || + (!getsockname(sp[0], &sa.sa, &len) && !connect(sock, &sa.sa, len))) && + (sp[1] = (sock_type == SOCK_DGRAM ? sock : + accept(sock, &sa.sa, &len))) != INVALID_SOCKET) { + ns_set_close_on_exec(sp[0]); + ns_set_close_on_exec(sp[1]); + ret = 1; + } else { + if (sp[0] != INVALID_SOCKET) closesocket(sp[0]); + if (sp[1] != INVALID_SOCKET) closesocket(sp[1]); + sp[0] = sp[1] = INVALID_SOCKET; + } + if (sock_type != SOCK_DGRAM) closesocket(sock); + + return ret; +} + +int ns_socketpair(sock_t sp[2]) { + return ns_socketpair2(sp, SOCK_STREAM); +} +#endif // NS_DISABLE_SOCKETPAIR + +// TODO(lsm): use non-blocking resolver +static int ns_resolve2(const char *host, struct in_addr *ina) { + struct hostent *he; + if ((he = gethostbyname(host)) == NULL) { + DBG(("gethostbyname(%s) failed: %s", host, strerror(errno))); + } else { + memcpy(ina, he->h_addr_list[0], sizeof(*ina)); + return 1; + } + return 0; +} + +// Resolve FDQN "host", store IP address in the "ip". +// Return > 0 (IP address length) on success. +int ns_resolve(const char *host, char *buf, size_t n) { + struct in_addr ad; + return ns_resolve2(host, &ad) ? snprintf(buf, n, "%s", inet_ntoa(ad)) : 0; +} + +// Address format: [PROTO://][IP_ADDRESS:]PORT[:CERT][:CA_CERT] +static int ns_parse_address(const char *str, union socket_address *sa, + int *proto, int *use_ssl, char *cert, char *ca) { + unsigned int a, b, c, d, port; + int n = 0, len = 0; + char host[200]; +#ifdef NS_ENABLE_IPV6 + char buf[100]; +#endif + + // MacOS needs that. If we do not zero it, subsequent bind() will fail. + // Also, all-zeroes in the socket address means binding to all addresses + // for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT). + memset(sa, 0, sizeof(*sa)); + sa->sin.sin_family = AF_INET; + + *proto = SOCK_STREAM; + *use_ssl = 0; + cert[0] = ca[0] = '\0'; + + if (memcmp(str, "ssl://", 6) == 0) { + str += 6; + *use_ssl = 1; + } else if (memcmp(str, "udp://", 6) == 0) { + str += 6; + *proto = SOCK_DGRAM; + } else if (memcmp(str, "tcp://", 6) == 0) { + str += 6; + } + + if (sscanf(str, "%u.%u.%u.%u:%u%n", &a, &b, &c, &d, &port, &len) == 5) { + // Bind to a specific IPv4 address, e.g. 192.168.1.5:8080 + sa->sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d); + sa->sin.sin_port = htons((uint16_t) port); +#ifdef NS_ENABLE_IPV6 + } else if (sscanf(str, "[%99[^]]]:%u%n", buf, &port, &len) == 2 && + inet_pton(AF_INET6, buf, &sa->sin6.sin6_addr)) { + // IPv6 address, e.g. [3ffe:2a00:100:7031::1]:8080 + sa->sin6.sin6_family = AF_INET6; + sa->sin6.sin6_port = htons((uint16_t) port); +#endif + } else if (sscanf(str, "%199[^ :]:%u%n", host, &port, &len) == 2) { + sa->sin.sin_port = htons((uint16_t) port); + ns_resolve2(host, &sa->sin.sin_addr); + } else if (sscanf(str, "%u%n", &port, &len) == 1) { + // If only port is specified, bind to IPv4, INADDR_ANY + sa->sin.sin_port = htons((uint16_t) port); + } + + if (*use_ssl && (sscanf(str + len, ":%99[^:]:%99[^:]%n", cert, ca, &n) == 2 || + sscanf(str + len, ":%99[^:]%n", cert, &n) == 1)) { + len += n; + } + + return port < 0xffff && str[len] == '\0' ? len : 0; +} + +// 'sa' must be an initialized address to bind to +static sock_t ns_open_listening_socket(union socket_address *sa, int proto) { + socklen_t sa_len = (sa->sa.sa_family == AF_INET) ? + sizeof(sa->sin) : sizeof(sa->sin6); + sock_t sock = INVALID_SOCKET; +#ifndef _WIN32 + int on = 1; +#endif + + if ((sock = socket(sa->sa.sa_family, proto, 0)) != INVALID_SOCKET && +#ifndef _WIN32 + // SO_RESUSEADDR is not enabled on Windows because the semantics of + // SO_REUSEADDR on UNIX and Windows is different. On Windows, + // SO_REUSEADDR allows to bind a socket to a port without error even if + // the port is already open by another program. This is not the behavior + // SO_REUSEADDR was designed for, and leads to hard-to-track failure + // scenarios. Therefore, SO_REUSEADDR was disabled on Windows. + !setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &on, sizeof(on)) && +#endif + !bind(sock, &sa->sa, sa_len) && + (proto == SOCK_DGRAM || listen(sock, SOMAXCONN) == 0)) { + ns_set_non_blocking_mode(sock); + // In case port was set to 0, get the real port number + (void) getsockname(sock, &sa->sa, &sa_len); + } else if (sock != INVALID_SOCKET) { + closesocket(sock); + sock = INVALID_SOCKET; + } + + return sock; +} + +#ifdef NS_ENABLE_SSL +// Certificate generation script is at +// https://github.com/cesanta/net_skeleton/blob/master/scripts/gen_certs.sh + +static int ns_use_ca_cert(SSL_CTX *ctx, const char *cert) { + if (ctx == NULL) { + return -1; + } else if (cert == NULL || cert[0] == '\0') { + return 0; + } + SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER | SSL_VERIFY_FAIL_IF_NO_PEER_CERT, 0); + return SSL_CTX_load_verify_locations(ctx, cert, NULL) == 1 ? 0 : -2; +} + +static int ns_use_cert(SSL_CTX *ctx, const char *pem_file) { + if (ctx == NULL) { + return -1; + } else if (pem_file == NULL || pem_file[0] == '\0') { + return 0; + } else if (SSL_CTX_use_certificate_file(ctx, pem_file, 1) == 0 || + SSL_CTX_use_PrivateKey_file(ctx, pem_file, 1) == 0) { + return -2; + } else { + SSL_CTX_set_mode(ctx, SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER); + SSL_CTX_use_certificate_chain_file(ctx, pem_file); + return 0; + } +} +#endif // NS_ENABLE_SSL + +struct ns_connection *ns_bind(struct ns_mgr *srv, const char *str, + ns_callback_t callback, void *user_data) { + union socket_address sa; + struct ns_connection *nc = NULL; + int use_ssl, proto; + char cert[100], ca_cert[100]; + sock_t sock; + + ns_parse_address(str, &sa, &proto, &use_ssl, cert, ca_cert); + if (use_ssl && cert[0] == '\0') return NULL; + + if ((sock = ns_open_listening_socket(&sa, proto)) == INVALID_SOCKET) { + } else if ((nc = ns_add_sock(srv, sock, callback, NULL)) == NULL) { + closesocket(sock); + } else { + nc->sa = sa; + nc->flags |= NSF_LISTENING; + nc->user_data = user_data; + nc->callback = callback; + + if (proto == SOCK_DGRAM) { + nc->flags |= NSF_UDP; + } + +#ifdef NS_ENABLE_SSL + if (use_ssl) { + nc->ssl_ctx = SSL_CTX_new(SSLv23_server_method()); + if (ns_use_cert(nc->ssl_ctx, cert) != 0 || + ns_use_ca_cert(nc->ssl_ctx, ca_cert) != 0) { + ns_close_conn(nc); + nc = NULL; + } + } +#endif + + DBG(("%p sock %d/%d ssl %p %p", nc, sock, proto, nc->ssl_ctx, nc->ssl)); + } + + return nc; +} + +static struct ns_connection *accept_conn(struct ns_connection *ls) { + struct ns_connection *c = NULL; + union socket_address sa; + socklen_t len = sizeof(sa); + sock_t sock = INVALID_SOCKET; + + // NOTE(lsm): on Windows, sock is always > FD_SETSIZE + if ((sock = accept(ls->sock, &sa.sa, &len)) == INVALID_SOCKET) { + } else if ((c = ns_add_sock(ls->mgr, sock, ls->callback, + ls->user_data)) == NULL) { + closesocket(sock); +#ifdef NS_ENABLE_SSL + } else if (ls->ssl_ctx != NULL && + ((c->ssl = SSL_new(ls->ssl_ctx)) == NULL || + SSL_set_fd(c->ssl, sock) != 1)) { + DBG(("SSL error")); + ns_close_conn(c); + c = NULL; +#endif + } else { + c->listener = ls; + c->proto_data = ls->proto_data; + ns_call(c, NS_ACCEPT, &sa); + DBG(("%p %d %p %p", c, c->sock, c->ssl_ctx, c->ssl)); + } + + return c; +} + +static int ns_is_error(int n) { + return n == 0 || + (n < 0 && errno != EINTR && errno != EINPROGRESS && + errno != EAGAIN && errno != EWOULDBLOCK +#ifdef _WIN32 + && WSAGetLastError() != WSAEINTR && WSAGetLastError() != WSAEWOULDBLOCK +#endif + ); +} + +void ns_sock_to_str(sock_t sock, char *buf, size_t len, int flags) { + union socket_address sa; + socklen_t slen = sizeof(sa); + + if (buf != NULL && len > 0) { + buf[0] = '\0'; + memset(&sa, 0, sizeof(sa)); + if (flags & 4) { + getpeername(sock, &sa.sa, &slen); + } else { + getsockname(sock, &sa.sa, &slen); + } + if (flags & 1) { +#if defined(NS_ENABLE_IPV6) + inet_ntop(sa.sa.sa_family, sa.sa.sa_family == AF_INET ? + (void *) &sa.sin.sin_addr : + (void *) &sa.sin6.sin6_addr, buf, len); +#elif defined(_WIN32) + // Only Windoze Vista (and newer) have inet_ntop() + strncpy(buf, inet_ntoa(sa.sin.sin_addr), len); +#else + inet_ntop(sa.sa.sa_family, (void *) &sa.sin.sin_addr, buf,(socklen_t)len); +#endif + } + if (flags & 2) { + snprintf(buf + strlen(buf), len - (strlen(buf) + 1), "%s%d", + flags & 1 ? ":" : "", (int) ntohs(sa.sin.sin_port)); + } + } +} + +int ns_hexdump(const void *buf, int len, char *dst, int dst_len) { + const unsigned char *p = (const unsigned char *) buf; + char ascii[17] = ""; + int i, idx, n = 0; + + for (i = 0; i < len; i++) { + idx = i % 16; + if (idx == 0) { + if (i > 0) n += snprintf(dst + n, dst_len - n, " %s\n", ascii); + n += snprintf(dst + n, dst_len - n, "%04x ", i); + } + n += snprintf(dst + n, dst_len - n, " %02x", p[i]); + ascii[idx] = p[i] < 0x20 || p[i] > 0x7e ? '.' : p[i]; + ascii[idx + 1] = '\0'; + } + + while (i++ % 16) n += snprintf(dst + n, dst_len - n, "%s", " "); + n += snprintf(dst + n, dst_len - n, " %s\n\n", ascii); + + return n; +} + +#ifdef NS_ENABLE_SSL +static int ns_ssl_err(struct ns_connection *conn, int res) { + int ssl_err = SSL_get_error(conn->ssl, res); + if (ssl_err == SSL_ERROR_WANT_READ) conn->flags |= NSF_WANT_READ; + if (ssl_err == SSL_ERROR_WANT_WRITE) conn->flags |= NSF_WANT_WRITE; + return ssl_err; +} +#endif + +static void ns_read_from_socket(struct ns_connection *conn) { + char buf[NS_READ_BUFFER_SIZE]; + int n = 0; + + if (conn->flags & NSF_CONNECTING) { + int ok = 1, ret; + socklen_t len = sizeof(ok); + + ret = getsockopt(conn->sock, SOL_SOCKET, SO_ERROR, (char *) &ok, &len); + (void) ret; +#ifdef NS_ENABLE_SSL + if (ret == 0 && ok == 0 && conn->ssl != NULL) { + int res = SSL_connect(conn->ssl); + int ssl_err = ns_ssl_err(conn, res); + if (res == 1) { + conn->flags |= NSF_SSL_HANDSHAKE_DONE; + } else if (ssl_err == SSL_ERROR_WANT_READ || + ssl_err == SSL_ERROR_WANT_WRITE) { + return; // Call us again + } else { + ok = 1; + } + } +#endif + conn->flags &= ~NSF_CONNECTING; + DBG(("%p ok=%d", conn, ok)); + if (ok != 0) { + conn->flags |= NSF_CLOSE_IMMEDIATELY; + } + ns_call(conn, NS_CONNECT, &ok); + return; + } + +#ifdef NS_ENABLE_SSL + if (conn->ssl != NULL) { + if (conn->flags & NSF_SSL_HANDSHAKE_DONE) { + // SSL library may have more bytes ready to read then we ask to read. + // Therefore, read in a loop until we read everything. Without the loop, + // we skip to the next select() cycle which can just timeout. + while ((n = SSL_read(conn->ssl, buf, sizeof(buf))) > 0) { + DBG(("%p %d <- %d bytes (SSL)", conn, conn->flags, n)); + iobuf_append(&conn->recv_iobuf, buf, n); + ns_call(conn, NS_RECV, &n); + } + ns_ssl_err(conn, n); + } else { + int res = SSL_accept(conn->ssl); + int ssl_err = ns_ssl_err(conn, res); + if (res == 1) { + conn->flags |= NSF_SSL_HANDSHAKE_DONE; + } else if (ssl_err == SSL_ERROR_WANT_READ || + ssl_err == SSL_ERROR_WANT_WRITE) { + return; // Call us again + } else { + conn->flags |= NSF_CLOSE_IMMEDIATELY; + } + return; + } + } else +#endif + { + while ((n = (int) recv(conn->sock, buf, sizeof(buf), 0)) > 0) { + DBG(("%p %d <- %d bytes (PLAIN)", conn, conn->flags, n)); + iobuf_append(&conn->recv_iobuf, buf, n); + ns_call(conn, NS_RECV, &n); + } + } + + if (ns_is_error(n)) { + conn->flags |= NSF_CLOSE_IMMEDIATELY; + } +} + +static void ns_write_to_socket(struct ns_connection *conn) { + struct iobuf *io = &conn->send_iobuf; + int n = 0; + +#ifdef NS_ENABLE_SSL + if (conn->ssl != NULL) { + n = SSL_write(conn->ssl, io->buf, io->len); + if (n <= 0) { + int ssl_err = ns_ssl_err(conn, n); + if (ssl_err == SSL_ERROR_WANT_READ || ssl_err == SSL_ERROR_WANT_WRITE) { + return; // Call us again + } else { + conn->flags |= NSF_CLOSE_IMMEDIATELY; + } + } + } else +#endif + { n = (int) send(conn->sock, io->buf, io->len, 0); } + + DBG(("%p %d -> %d bytes", conn, conn->flags, n)); + + ns_call(conn, NS_SEND, &n); + if (ns_is_error(n)) { + conn->flags |= NSF_CLOSE_IMMEDIATELY; + } else if (n > 0) { + iobuf_remove(io, n); + } +} + +int ns_send(struct ns_connection *conn, const void *buf, int len) { + return (int) ns_out(conn, buf, len); +} + +static void ns_handle_udp(struct ns_connection *ls) { + struct ns_connection nc; + char buf[NS_UDP_RECEIVE_BUFFER_SIZE]; + int n; + socklen_t s_len = sizeof(nc.sa); + + memset(&nc, 0, sizeof(nc)); + n = recvfrom(ls->sock, buf, sizeof(buf), 0, &nc.sa.sa, &s_len); + if (n <= 0) { + DBG(("%p recvfrom: %s", ls, strerror(errno))); + } else { + nc.mgr = ls->mgr; + nc.recv_iobuf.buf = buf; + nc.recv_iobuf.len = nc.recv_iobuf.size = n; + nc.sock = ls->sock; + nc.callback = ls->callback; + nc.user_data = ls->user_data; + nc.proto_data = ls->proto_data; + nc.mgr = ls->mgr; + nc.listener = ls; + nc.flags = NSF_UDP; + DBG(("%p %d bytes received", ls, n)); + ns_call(&nc, NS_RECV, &n); + } +} + +static void ns_add_to_set(sock_t sock, fd_set *set, sock_t *max_fd) { + if (sock != INVALID_SOCKET) { + FD_SET(sock, set); + if (*max_fd == INVALID_SOCKET || sock > *max_fd) { + *max_fd = sock; + } + } +} + +time_t ns_mgr_poll(struct ns_mgr *mgr, int milli) { + struct ns_connection *conn, *tmp_conn; + struct timeval tv; + fd_set read_set, write_set; + sock_t max_fd = INVALID_SOCKET; + time_t current_time = time(NULL); + + FD_ZERO(&read_set); + FD_ZERO(&write_set); + ns_add_to_set(mgr->ctl[1], &read_set, &max_fd); + + for (conn = mgr->active_connections; conn != NULL; conn = tmp_conn) { + tmp_conn = conn->next; + if (!(conn->flags & (NSF_LISTENING | NSF_CONNECTING))) { + ns_call(conn, NS_POLL, ¤t_time); + } + if (conn->flags & NSF_CLOSE_IMMEDIATELY) { + ns_close_conn(conn); + } else { + if (!(conn->flags & NSF_WANT_WRITE)) { + //DBG(("%p read_set", conn)); + ns_add_to_set(conn->sock, &read_set, &max_fd); + } + if (((conn->flags & NSF_CONNECTING) && !(conn->flags & NSF_WANT_READ)) || + (conn->send_iobuf.len > 0 && !(conn->flags & NSF_CONNECTING) && + !(conn->flags & NSF_BUFFER_BUT_DONT_SEND))) { + //DBG(("%p write_set", conn)); + ns_add_to_set(conn->sock, &write_set, &max_fd); + } + } + } + + tv.tv_sec = milli / 1000; + tv.tv_usec = (milli % 1000) * 1000; + + if (select((int) max_fd + 1, &read_set, &write_set, NULL, &tv) > 0) { + // select() might have been waiting for a long time, reset current_time + // now to prevent last_io_time being set to the past. + current_time = time(NULL); + + // Read wakeup messages + if (mgr->ctl[1] != INVALID_SOCKET && + FD_ISSET(mgr->ctl[1], &read_set)) { + struct ctl_msg ctl_msg; + int len = (int) recv(mgr->ctl[1], (char *) &ctl_msg, sizeof(ctl_msg), 0); + send(mgr->ctl[1], ctl_msg.message, 1, 0); + if (len >= (int) sizeof(ctl_msg.callback) && ctl_msg.callback != NULL) { + struct ns_connection *c; + for (c = ns_next(mgr, NULL); c != NULL; c = ns_next(mgr, c)) { + ctl_msg.callback(c, NS_POLL, ctl_msg.message); + } + } + } + + for (conn = mgr->active_connections; conn != NULL; conn = tmp_conn) { + tmp_conn = conn->next; + if (FD_ISSET(conn->sock, &read_set)) { + if (conn->flags & NSF_LISTENING) { + if (conn->flags & NSF_UDP) { + ns_handle_udp(conn); + } else { + // We're not looping here, and accepting just one connection at + // a time. The reason is that eCos does not respect non-blocking + // flag on a listening socket and hangs in a loop. + accept_conn(conn); + } + } else { + conn->last_io_time = current_time; + ns_read_from_socket(conn); + } + } + + if (FD_ISSET(conn->sock, &write_set)) { + if (conn->flags & NSF_CONNECTING) { + ns_read_from_socket(conn); + } else if (!(conn->flags & NSF_BUFFER_BUT_DONT_SEND)) { + conn->last_io_time = current_time; + ns_write_to_socket(conn); + } + } + } + } + + for (conn = mgr->active_connections; conn != NULL; conn = tmp_conn) { + tmp_conn = conn->next; + if ((conn->flags & NSF_CLOSE_IMMEDIATELY) || + (conn->send_iobuf.len == 0 && + (conn->flags & NSF_FINISHED_SENDING_DATA))) { + ns_close_conn(conn); + } + } + + return current_time; +} + +struct ns_connection *ns_connect(struct ns_mgr *mgr, const char *address, + ns_callback_t callback, void *user_data) { + sock_t sock = INVALID_SOCKET; + struct ns_connection *nc = NULL; + union socket_address sa; + char cert[100], ca_cert[100]; + int rc, use_ssl, proto; + + ns_parse_address(address, &sa, &proto, &use_ssl, cert, ca_cert); + if ((sock = socket(AF_INET, proto, 0)) == INVALID_SOCKET) { + return NULL; + } + ns_set_non_blocking_mode(sock); + rc = (proto == SOCK_DGRAM) ? 0 : connect(sock, &sa.sa, sizeof(sa.sin)); + + if (rc != 0 && ns_is_error(rc)) { + closesocket(sock); + return NULL; + } else if ((nc = ns_add_sock(mgr, sock, callback, user_data)) == NULL) { + closesocket(sock); + return NULL; + } + + nc->sa = sa; // Important, cause UDP conns will use sendto() + nc->flags = (proto == SOCK_DGRAM) ? NSF_UDP : NSF_CONNECTING; + +#ifdef NS_ENABLE_SSL + if (use_ssl) { + if ((nc->ssl_ctx = SSL_CTX_new(SSLv23_client_method())) == NULL || + ns_use_cert(nc->ssl_ctx, cert) != 0 || + ns_use_ca_cert(nc->ssl_ctx, ca_cert) != 0 || + (nc->ssl = SSL_new(nc->ssl_ctx)) == NULL) { + ns_close_conn(nc); + return NULL; + } else { + SSL_set_fd(nc->ssl, sock); + } + } +#endif + + return nc; +} + +struct ns_connection *ns_add_sock(struct ns_mgr *s, sock_t sock, + ns_callback_t callback, void *user_data) { + struct ns_connection *conn; + if ((conn = (struct ns_connection *) NS_MALLOC(sizeof(*conn))) != NULL) { + memset(conn, 0, sizeof(*conn)); + ns_set_non_blocking_mode(sock); + ns_set_close_on_exec(sock); + conn->sock = sock; + conn->user_data = user_data; + conn->callback = callback; + conn->mgr = s; + conn->last_io_time = time(NULL); + ns_add_conn(s, conn); + DBG(("%p %d", conn, sock)); + } + return conn; +} + +struct ns_connection *ns_next(struct ns_mgr *s, struct ns_connection *conn) { + return conn == NULL ? s->active_connections : conn->next; +} + +void ns_broadcast(struct ns_mgr *mgr, ns_callback_t cb,void *data, size_t len) { + struct ctl_msg ctl_msg; + if (mgr->ctl[0] != INVALID_SOCKET && data != NULL && + len < sizeof(ctl_msg.message)) { + ctl_msg.callback = cb; + memcpy(ctl_msg.message, data, len); + send(mgr->ctl[0], (char *) &ctl_msg, + offsetof(struct ctl_msg, message) + len, 0); + recv(mgr->ctl[0], (char *) &len, 1, 0); + } +} + +void ns_mgr_init(struct ns_mgr *s, void *user_data) { + memset(s, 0, sizeof(*s)); + s->ctl[0] = s->ctl[1] = INVALID_SOCKET; + s->user_data = user_data; + +#ifdef _WIN32 + { WSADATA data; WSAStartup(MAKEWORD(2, 2), &data); } +#else + // Ignore SIGPIPE signal, so if client cancels the request, it + // won't kill the whole process. + signal(SIGPIPE, SIG_IGN); +#endif + +#ifndef NS_DISABLE_SOCKETPAIR + do { + ns_socketpair2(s->ctl, SOCK_DGRAM); + } while (s->ctl[0] == INVALID_SOCKET); +#endif + +#ifdef NS_ENABLE_SSL + {static int init_done; if (!init_done) { SSL_library_init(); init_done++; }} +#endif +} + +void ns_mgr_free(struct ns_mgr *s) { + struct ns_connection *conn, *tmp_conn; + + DBG(("%p", s)); + if (s == NULL) return; + // Do one last poll, see https://github.com/cesanta/mongoose/issues/286 + ns_mgr_poll(s, 0); + + if (s->ctl[0] != INVALID_SOCKET) closesocket(s->ctl[0]); + if (s->ctl[1] != INVALID_SOCKET) closesocket(s->ctl[1]); + s->ctl[0] = s->ctl[1] = INVALID_SOCKET; + + for (conn = s->active_connections; conn != NULL; conn = tmp_conn) { + tmp_conn = conn->next; + ns_close_conn(conn); + } +} +// net_skeleton end +#endif // NOEMBED_NET_SKELETON + +#include + +#ifdef _WIN32 //////////////// Windows specific defines and includes +#include // For _lseeki64 +#include // For _mkdir +#ifndef S_ISDIR +#define S_ISDIR(x) ((x) & _S_IFDIR) +#endif +#ifdef stat +#undef stat +#endif +#ifdef lseek +#undef lseek +#endif +#ifdef popen +#undef popen +#endif +#ifdef pclose +#undef pclose +#endif +#define stat(x, y) mg_stat((x), (y)) +#define fopen(x, y) mg_fopen((x), (y)) +#define open(x, y, z) mg_open((x), (y), (z)) +#define close(x) _close(x) +#define fileno(x) _fileno(x) +#define lseek(x, y, z) _lseeki64((x), (y), (z)) +#define read(x, y, z) _read((x), (y), (z)) +#define write(x, y, z) _write((x), (y), (z)) +#define popen(x, y) _popen((x), (y)) +#define pclose(x) _pclose(x) +#define mkdir(x, y) _mkdir(x) +#define rmdir(x) _rmdir(x) +#define strdup(x) _strdup(x) +#ifndef __func__ +#define STRX(x) #x +#define STR(x) STRX(x) +#define __func__ __FILE__ ":" STR(__LINE__) +#endif +/* MINGW has adopted the MSVC formatting for 64-bit ints as of gcc 4.4 till 4.8*/ +#if (defined(__MINGW32__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4 && __GNUC_MINOR__ < 8))) || defined(_MSC_VER) +#define INT64_FMT "I64d" +#else +#define INT64_FMT "lld" +#endif +#define flockfile(x) ((void) (x)) +#define funlockfile(x) ((void) (x)) +typedef struct _stati64 file_stat_t; +typedef HANDLE process_id_t; + +#else ////////////// UNIX specific defines and includes + +#if !defined(MONGOOSE_NO_FILESYSTEM) &&\ + (!defined(MONGOOSE_NO_DAV) || !defined(MONGOOSE_NO_DIRECTORY_LISTING)) +#include +#endif +#if !defined(MONGOOSE_NO_FILESYSTEM) && !defined(MONGOOSE_NO_DL) +#include +#endif +#include +#include +#if !defined(O_BINARY) +#define O_BINARY 0 +#endif +#define INT64_FMT PRId64 +typedef struct stat file_stat_t; +typedef pid_t process_id_t; +#endif //////// End of platform-specific defines and includes + +#include "mongoose.h" + +#define MAX_REQUEST_SIZE 16384 +#define IOBUF_SIZE 8192 +#define MAX_PATH_SIZE 8192 +#define DEFAULT_CGI_PATTERN "**.cgi$|**.pl$|**.php$" +#define CGI_ENVIRONMENT_SIZE 8192 +#define MAX_CGI_ENVIR_VARS 64 +#define ENV_EXPORT_TO_CGI "MONGOOSE_CGI" +#define PASSWORDS_FILE_NAME ".htpasswd" + +#ifndef MONGOOSE_USE_WEBSOCKET_PING_INTERVAL +#define MONGOOSE_USE_WEBSOCKET_PING_INTERVAL 5 +#endif + +// Extra HTTP headers to send in every static file reply +#if !defined(MONGOOSE_USE_EXTRA_HTTP_HEADERS) +#define MONGOOSE_USE_EXTRA_HTTP_HEADERS "" +#endif + +#ifndef MONGOOSE_POST_SIZE_LIMIT +#define MONGOOSE_POST_SIZE_LIMIT 0 +#endif + +#ifndef MONGOOSE_IDLE_TIMEOUT_SECONDS +#define MONGOOSE_IDLE_TIMEOUT_SECONDS 300 +#endif + +#if defined(NS_DISABLE_SOCKETPAIR) && !defined(MONGOOSE_NO_CGI) +#define MONGOOSE_NO_CGI +#endif + +#ifdef MONGOOSE_NO_FILESYSTEM +#define MONGOOSE_NO_AUTH +#if !defined(MONGOOSE_NO_CGI) +#define MONGOOSE_NO_CGI +#endif +#define MONGOOSE_NO_DAV +#define MONGOOSE_NO_DIRECTORY_LISTING +#define MONGOOSE_NO_LOGGING +#define MONGOOSE_NO_SSI +#define MONGOOSE_NO_DL +#endif + +struct vec { + const char *ptr; + int len; +}; + +// For directory listing and WevDAV support +struct dir_entry { + struct connection *conn; + char *file_name; + file_stat_t st; +}; + +// NOTE(lsm): this enum shoulds be in sync with the config_options. +enum { + ACCESS_CONTROL_LIST, +#ifndef MONGOOSE_NO_FILESYSTEM + ACCESS_LOG_FILE, +#ifndef MONGOOSE_NO_AUTH + AUTH_DOMAIN, +#endif +#ifndef MONGOOSE_NO_CGI + CGI_INTERPRETER, + CGI_PATTERN, +#endif + DAV_AUTH_FILE, + DOCUMENT_ROOT, +#ifndef MONGOOSE_NO_DIRECTORY_LISTING + ENABLE_DIRECTORY_LISTING, +#endif +#endif + ENABLE_PROXY, + EXTRA_MIME_TYPES, +#if !defined(MONGOOSE_NO_FILESYSTEM) && !defined(MONGOOSE_NO_AUTH) + GLOBAL_AUTH_FILE, +#endif +#ifndef MONGOOSE_NO_FILESYSTEM + HIDE_FILES_PATTERN, + HEXDUMP_FILE, + INDEX_FILES, +#endif + LISTENING_PORT, +#ifndef _WIN32 + RUN_AS_USER, +#endif +#ifndef MONGOOSE_NO_SSI + SSI_PATTERN, +#endif + URL_REWRITES, + NUM_OPTIONS +}; + +static const char *static_config_options[] = { + "access_control_list", NULL, +#ifndef MONGOOSE_NO_FILESYSTEM + "access_log_file", NULL, +#ifndef MONGOOSE_NO_AUTH + "auth_domain", "mydomain.com", +#endif +#ifndef MONGOOSE_NO_CGI + "cgi_interpreter", NULL, + "cgi_pattern", DEFAULT_CGI_PATTERN, +#endif + "dav_auth_file", NULL, + "document_root", NULL, +#ifndef MONGOOSE_NO_DIRECTORY_LISTING + "enable_directory_listing", "yes", +#endif +#endif + "enable_proxy", NULL, + "extra_mime_types", NULL, +#if !defined(MONGOOSE_NO_FILESYSTEM) && !defined(MONGOOSE_NO_AUTH) + "global_auth_file", NULL, +#endif +#ifndef MONGOOSE_NO_FILESYSTEM + "hide_files_patterns", NULL, + "hexdump_file", NULL, + "index_files","index.html,index.htm,index.shtml,index.cgi,index.php", +#endif + "listening_port", NULL, +#ifndef _WIN32 + "run_as_user", NULL, +#endif +#ifndef MONGOOSE_NO_SSI + "ssi_pattern", "**.shtml$|**.shtm$", +#endif + "url_rewrites", NULL, + NULL +}; + +struct mg_server { + struct ns_mgr ns_mgr; + union socket_address lsa; // Listening socket address + mg_handler_t event_handler; + char *config_options[NUM_OPTIONS]; +}; + +// Local endpoint representation +union endpoint { + int fd; // Opened regular local file + struct ns_connection *nc; // CGI or proxy->target connection +}; + +enum endpoint_type { + EP_NONE, EP_FILE, EP_CGI, EP_USER, EP_PUT, EP_CLIENT, EP_PROXY +}; + +#define MG_HEADERS_SENT NSF_USER_1 +#define MG_LONG_RUNNING NSF_USER_2 +#define MG_CGI_CONN NSF_USER_3 +#define MG_PROXY_CONN NSF_USER_4 +#define MG_PROXY_DONT_PARSE NSF_USER_5 + +struct connection { + struct ns_connection *ns_conn; // NOTE(lsm): main.c depends on this order + struct mg_connection mg_conn; + struct mg_server *server; + union endpoint endpoint; + enum endpoint_type endpoint_type; + char *path_info; + char *request; + int64_t num_bytes_recv; // Total number of bytes received + int64_t cl; // Reply content length, for Range support + int request_len; // Request length, including last \r\n after last header +}; + +#define MG_CONN_2_CONN(c) ((struct connection *) ((char *) (c) - \ + offsetof(struct connection, mg_conn))) + +static void open_local_endpoint(struct connection *conn, int skip_user); +static void close_local_endpoint(struct connection *conn); +static void mg_ev_handler(struct ns_connection *nc, int ev, void *p); + +static const struct { + const char *extension; + size_t ext_len; + const char *mime_type; +} static_builtin_mime_types[] = { + {".html", 5, "text/html"}, + {".htm", 4, "text/html"}, + {".shtm", 5, "text/html"}, + {".shtml", 6, "text/html"}, + {".css", 4, "text/css"}, + {".js", 3, "application/javascript"}, + {".ico", 4, "image/x-icon"}, + {".gif", 4, "image/gif"}, + {".jpg", 4, "image/jpeg"}, + {".jpeg", 5, "image/jpeg"}, + {".png", 4, "image/png"}, + {".svg", 4, "image/svg+xml"}, + {".txt", 4, "text/plain"}, + {".torrent", 8, "application/x-bittorrent"}, + {".wav", 4, "audio/x-wav"}, + {".mp3", 4, "audio/x-mp3"}, + {".mid", 4, "audio/mid"}, + {".m3u", 4, "audio/x-mpegurl"}, + {".ogg", 4, "application/ogg"}, + {".ram", 4, "audio/x-pn-realaudio"}, + {".xml", 4, "text/xml"}, + {".json", 5, "application/json"}, + {".xslt", 5, "application/xml"}, + {".xsl", 4, "application/xml"}, + {".ra", 3, "audio/x-pn-realaudio"}, + {".doc", 4, "application/msword"}, + {".exe", 4, "application/octet-stream"}, + {".zip", 4, "application/x-zip-compressed"}, + {".xls", 4, "application/excel"}, + {".tgz", 4, "application/x-tar-gz"}, + {".tar", 4, "application/x-tar"}, + {".gz", 3, "application/x-gunzip"}, + {".arj", 4, "application/x-arj-compressed"}, + {".rar", 4, "application/x-rar-compressed"}, + {".rtf", 4, "application/rtf"}, + {".pdf", 4, "application/pdf"}, + {".swf", 4, "application/x-shockwave-flash"}, + {".mpg", 4, "video/mpeg"}, + {".webm", 5, "video/webm"}, + {".mpeg", 5, "video/mpeg"}, + {".mov", 4, "video/quicktime"}, + {".mp4", 4, "video/mp4"}, + {".m4v", 4, "video/x-m4v"}, + {".asf", 4, "video/x-ms-asf"}, + {".avi", 4, "video/x-msvideo"}, + {".bmp", 4, "image/bmp"}, + {".ttf", 4, "application/x-font-ttf"}, + {NULL, 0, NULL} +}; + +#ifndef MONGOOSE_NO_THREADS +void *mg_start_thread(void *(*f)(void *), void *p) { + return ns_start_thread(f, p); +} +#endif // MONGOOSE_NO_THREADS + +#ifndef MONGOOSE_NO_MMAP +#ifdef _WIN32 +static void *mmap(void *addr, int64_t len, int prot, int flags, int fd, + int offset) { + HANDLE fh = (HANDLE) _get_osfhandle(fd); + HANDLE mh = CreateFileMapping(fh, 0, PAGE_READONLY, 0, 0, 0); + void *p = MapViewOfFile(mh, FILE_MAP_READ, 0, 0, (size_t) len); + CloseHandle(mh); + return p; +} +#define munmap(x, y) UnmapViewOfFile(x) +#define MAP_FAILED NULL +#define MAP_PRIVATE 0 +#define PROT_READ 0 +#else +#include +#endif + +void *mg_mmap(FILE *fp, size_t size) { + void *p = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fileno(fp), 0); + return p == MAP_FAILED ? NULL : p; +} + +void mg_munmap(void *p, size_t size) { + munmap(p, size); +} +#endif // MONGOOSE_NO_MMAP + +#if defined(_WIN32) && !defined(MONGOOSE_NO_FILESYSTEM) +// Encode 'path' which is assumed UTF-8 string, into UNICODE string. +// wbuf and wbuf_len is a target buffer and its length. +static void to_wchar(const char *path, wchar_t *wbuf, size_t wbuf_len) { + char buf[MAX_PATH_SIZE * 2], buf2[MAX_PATH_SIZE * 2], *p; + + strncpy(buf, path, sizeof(buf)); + buf[sizeof(buf) - 1] = '\0'; + + // Trim trailing slashes. Leave backslash for paths like "X:\" + p = buf + strlen(buf) - 1; + while (p > buf && p[-1] != ':' && (p[0] == '\\' || p[0] == '/')) *p-- = '\0'; + + // Convert to Unicode and back. If doubly-converted string does not + // match the original, something is fishy, reject. + memset(wbuf, 0, wbuf_len * sizeof(wchar_t)); + MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len); + WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2), + NULL, NULL); + if (strcmp(buf, buf2) != 0) { + wbuf[0] = L'\0'; + } +} + +static int mg_stat(const char *path, file_stat_t *st) { + wchar_t wpath[MAX_PATH_SIZE]; + to_wchar(path, wpath, ARRAY_SIZE(wpath)); + DBG(("[%ls] -> %d", wpath, _wstati64(wpath, st))); + return _wstati64(wpath, st); +} + +static FILE *mg_fopen(const char *path, const char *mode) { + wchar_t wpath[MAX_PATH_SIZE], wmode[10]; + to_wchar(path, wpath, ARRAY_SIZE(wpath)); + to_wchar(mode, wmode, ARRAY_SIZE(wmode)); + return _wfopen(wpath, wmode); +} + +static int mg_open(const char *path, int flag, int mode) { + wchar_t wpath[MAX_PATH_SIZE]; + to_wchar(path, wpath, ARRAY_SIZE(wpath)); + return _wopen(wpath, flag, mode); +} +#endif // _WIN32 && !MONGOOSE_NO_FILESYSTEM + +// A helper function for traversing a comma separated list of values. +// It returns a list pointer shifted to the next value, or NULL if the end +// of the list found. +// Value is stored in val vector. If value has form "x=y", then eq_val +// vector is initialized to point to the "y" part, and val vector length +// is adjusted to point only to "x". +static const char *next_option(const char *list, struct vec *val, + struct vec *eq_val) { + if (list == NULL || *list == '\0') { + // End of the list + list = NULL; + } else { + val->ptr = list; + if ((list = strchr(val->ptr, ',')) != NULL) { + // Comma found. Store length and shift the list ptr + val->len = list - val->ptr; + list++; + } else { + // This value is the last one + list = val->ptr + strlen(val->ptr); + val->len = list - val->ptr; + } + + if (eq_val != NULL) { + // Value has form "x=y", adjust pointers and lengths + // so that val points to "x", and eq_val points to "y". + eq_val->len = 0; + eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len); + if (eq_val->ptr != NULL) { + eq_val->ptr++; // Skip over '=' character + eq_val->len = val->ptr + val->len - eq_val->ptr; + val->len = (eq_val->ptr - val->ptr) - 1; + } + } + } + + return list; +} + +// Like snprintf(), but never returns negative value, or a value +// that is larger than a supplied buffer. +static int mg_vsnprintf(char *buf, size_t buflen, const char *fmt, va_list ap) { + int n; + if (buflen < 1) return 0; + n = vsnprintf(buf, buflen, fmt, ap); + if (n < 0) { + n = 0; + } else if (n >= (int) buflen) { + n = (int) buflen - 1; + } + buf[n] = '\0'; + return n; +} + +static int mg_snprintf(char *buf, size_t buflen, const char *fmt, ...) { + va_list ap; + int n; + va_start(ap, fmt); + n = mg_vsnprintf(buf, buflen, fmt, ap); + va_end(ap); + return n; +} + +// Check whether full request is buffered. Return: +// -1 if request is malformed +// 0 if request is not yet fully buffered +// >0 actual request length, including last \r\n\r\n +static int get_request_len(const char *s, int buf_len) { + const unsigned char *buf = (unsigned char *) s; + int i; + + for (i = 0; i < buf_len; i++) { + // Control characters are not allowed but >=128 are. + // Abort scan as soon as one malformed character is found. + if (!isprint(buf[i]) && buf[i] != '\r' && buf[i] != '\n' && buf[i] < 128) { + return -1; + } else if (buf[i] == '\n' && i + 1 < buf_len && buf[i + 1] == '\n') { + return i + 2; + } else if (buf[i] == '\n' && i + 2 < buf_len && buf[i + 1] == '\r' && + buf[i + 2] == '\n') { + return i + 3; + } + } + + return 0; +} + +// Skip the characters until one of the delimiters characters found. +// 0-terminate resulting word. Skip the rest of the delimiters if any. +// Advance pointer to buffer to the next word. Return found 0-terminated word. +static char *skip(char **buf, const char *delimiters) { + char *p, *begin_word, *end_word, *end_delimiters; + + begin_word = *buf; + end_word = begin_word + strcspn(begin_word, delimiters); + end_delimiters = end_word + strspn(end_word, delimiters); + + for (p = end_word; p < end_delimiters; p++) { + *p = '\0'; + } + + *buf = end_delimiters; + + return begin_word; +} + +// Parse HTTP headers from the given buffer, advance buffer to the point +// where parsing stopped. +static void parse_http_headers(char **buf, struct mg_connection *ri) { + size_t i; + + for (i = 0; i < ARRAY_SIZE(ri->http_headers); i++) { + ri->http_headers[i].name = skip(buf, ": "); + ri->http_headers[i].value = skip(buf, "\r\n"); + if (ri->http_headers[i].name[0] == '\0') + break; + ri->num_headers = i + 1; + } +} + +static const char *status_code_to_str(int status_code) { + switch (status_code) { + + case 100: return "Continue"; + case 101: return "Switching Protocols"; + case 102: return "Processing"; + + case 200: return "OK"; + case 201: return "Created"; + case 202: return "Accepted"; + case 203: return "Non-Authoritative Information"; + case 204: return "No Content"; + case 205: return "Reset Content"; + case 206: return "Partial Content"; + case 207: return "Multi-Status"; + case 208: return "Already Reported"; + case 226: return "IM Used"; + + case 300: return "Multiple Choices"; + case 301: return "Moved Permanently"; + case 302: return "Found"; + case 303: return "See Other"; + case 304: return "Not Modified"; + case 305: return "Use Proxy"; + case 306: return "Switch Proxy"; + case 307: return "Temporary Redirect"; + case 308: return "Permanent Redirect"; + + case 400: return "Bad Request"; + case 401: return "Unauthorized"; + case 402: return "Payment Required"; + case 403: return "Forbidden"; + case 404: return "Not Found"; + case 405: return "Method Not Allowed"; + case 406: return "Not Acceptable"; + case 407: return "Proxy Authentication Required"; + case 408: return "Request Timeout"; + case 409: return "Conflict"; + case 410: return "Gone"; + case 411: return "Length Required"; + case 412: return "Precondition Failed"; + case 413: return "Payload Too Large"; + case 414: return "URI Too Long"; + case 415: return "Unsupported Media Type"; + case 416: return "Requested Range Not Satisfiable"; + case 417: return "Expectation Failed"; + case 418: return "I\'m a teapot"; + case 422: return "Unprocessable Entity"; + case 423: return "Locked"; + case 424: return "Failed Dependency"; + case 426: return "Upgrade Required"; + case 428: return "Precondition Required"; + case 429: return "Too Many Requests"; + case 431: return "Request Header Fields Too Large"; + case 451: return "Unavailable For Legal Reasons"; + + case 500: return "Internal Server Error"; + case 501: return "Not Implemented"; + case 502: return "Bad Gateway"; + case 503: return "Service Unavailable"; + case 504: return "Gateway Timeout"; + case 505: return "HTTP Version Not Supported"; + case 506: return "Variant Also Negotiates"; + case 507: return "Insufficient Storage"; + case 508: return "Loop Detected"; + case 510: return "Not Extended"; + case 511: return "Network Authentication Required"; + + default: return "Server Error"; + } +} + +static int call_user(struct connection *conn, enum mg_event ev) { + return conn != NULL && conn->server != NULL && + conn->server->event_handler != NULL ? + conn->server->event_handler(&conn->mg_conn, ev) : MG_FALSE; +} + +static void send_http_error(struct connection *conn, int code, + const char *fmt, ...) { + const char *message = status_code_to_str(code); + const char *rewrites = conn->server->config_options[URL_REWRITES]; + char headers[200], body[200]; + struct vec a, b; + va_list ap; + int body_len, headers_len, match_code; + + conn->mg_conn.status_code = code; + + // Invoke error handler if it is set + if (call_user(conn, MG_HTTP_ERROR) == MG_TRUE) { + close_local_endpoint(conn); + return; + } + + // Handle error code rewrites + while ((rewrites = next_option(rewrites, &a, &b)) != NULL) { + if ((match_code = atoi(a.ptr)) > 0 && match_code == code) { + struct mg_connection *c = &conn->mg_conn; + c->status_code = 302; + mg_printf(c, "HTTP/1.1 %d Moved\r\n" + "Location: %.*s?code=%d&orig_uri=%s&query_string=%s\r\n\r\n", + c->status_code, b.len, b.ptr, code, c->uri, + c->query_string == NULL ? "" : c->query_string); + close_local_endpoint(conn); + return; + } + } + + body_len = mg_snprintf(body, sizeof(body), "%d %s\n", code, message); + if (fmt != NULL) { + va_start(ap, fmt); + body_len += mg_vsnprintf(body + body_len, sizeof(body) - body_len, fmt, ap); + va_end(ap); + } + if ((code >= 300 && code <= 399) || code == 204) { + // 3xx errors do not have body + body_len = 0; + } + headers_len = mg_snprintf(headers, sizeof(headers), + "HTTP/1.1 %d %s\r\nContent-Length: %d\r\n" + "Content-Type: text/plain\r\n\r\n", + code, message, body_len); + ns_send(conn->ns_conn, headers, headers_len); + ns_send(conn->ns_conn, body, body_len); + close_local_endpoint(conn); // This will write to the log file +} + +static void write_chunk(struct connection *conn, const char *buf, int len) { + char chunk_size[50]; + int n = mg_snprintf(chunk_size, sizeof(chunk_size), "%X\r\n", len); + ns_send(conn->ns_conn, chunk_size, n); + ns_send(conn->ns_conn, buf, len); + ns_send(conn->ns_conn, "\r\n", 2); +} + +size_t mg_printf(struct mg_connection *conn, const char *fmt, ...) { + struct connection *c = MG_CONN_2_CONN(conn); + va_list ap; + + va_start(ap, fmt); + ns_vprintf(c->ns_conn, fmt, ap); + va_end(ap); + + return c->ns_conn->send_iobuf.len; +} + +static void ns_forward(struct ns_connection *from, struct ns_connection *to) { + DBG(("%p -> %p %lu bytes", from, to, (unsigned long)from->recv_iobuf.len)); + ns_send(to, from->recv_iobuf.buf, from->recv_iobuf.len); + iobuf_remove(&from->recv_iobuf, from->recv_iobuf.len); +} + +#ifndef MONGOOSE_NO_CGI +#ifdef _WIN32 +struct threadparam { + sock_t s; + HANDLE hPipe; +}; + +static int wait_until_ready(sock_t sock, int for_read) { + fd_set set; + FD_ZERO(&set); + FD_SET(sock, &set); + select(sock + 1, for_read ? &set : 0, for_read ? 0 : &set, 0, 0); + return 1; +} + +static void *push_to_stdin(void *arg) { + struct threadparam *tp = (struct threadparam *)arg; + int n, sent, stop = 0; + DWORD k; + char buf[IOBUF_SIZE]; + + while (!stop && wait_until_ready(tp->s, 1) && + (n = recv(tp->s, buf, sizeof(buf), 0)) > 0) { + if (n == -1 && GetLastError() == WSAEWOULDBLOCK) continue; + for (sent = 0; !stop && sent < n; sent += k) { + if (!WriteFile(tp->hPipe, buf + sent, n - sent, &k, 0)) stop = 1; + } + } + DBG(("%s", "FORWARED EVERYTHING TO CGI")); + CloseHandle(tp->hPipe); + NS_FREE(tp); + _endthread(); + return NULL; +} + +static void *pull_from_stdout(void *arg) { + struct threadparam *tp = (struct threadparam *)arg; + int k = 0, stop = 0; + DWORD n, sent; + char buf[IOBUF_SIZE]; + + while (!stop && ReadFile(tp->hPipe, buf, sizeof(buf), &n, NULL)) { + for (sent = 0; !stop && sent < n; sent += k) { + if (wait_until_ready(tp->s, 0) && + (k = send(tp->s, buf + sent, n - sent, 0)) <= 0) stop = 1; + } + } + DBG(("%s", "EOF FROM CGI")); + CloseHandle(tp->hPipe); + shutdown(tp->s, 2); // Without this, IO thread may get truncated data + closesocket(tp->s); + NS_FREE(tp); + _endthread(); + return NULL; +} + +static void spawn_stdio_thread(sock_t sock, HANDLE hPipe, + void *(*func)(void *)) { + struct threadparam *tp = (struct threadparam *)NS_MALLOC(sizeof(*tp)); + if (tp != NULL) { + tp->s = sock; + tp->hPipe = hPipe; + mg_start_thread(func, tp); + } +} + +static void abs_path(const char *utf8_path, char *abs_path, size_t len) { + wchar_t buf[MAX_PATH_SIZE], buf2[MAX_PATH_SIZE]; + to_wchar(utf8_path, buf, ARRAY_SIZE(buf)); + GetFullPathNameW(buf, ARRAY_SIZE(buf2), buf2, NULL); + WideCharToMultiByte(CP_UTF8, 0, buf2, wcslen(buf2) + 1, abs_path, len, 0, 0); +} + +static process_id_t start_process(char *interp, const char *cmd, + const char *env, const char *envp[], + const char *dir, sock_t sock) { + STARTUPINFOW si; + PROCESS_INFORMATION pi; + HANDLE a[2], b[2], me = GetCurrentProcess(); + wchar_t wcmd[MAX_PATH_SIZE], full_dir[MAX_PATH_SIZE]; + char buf[MAX_PATH_SIZE], buf4[MAX_PATH_SIZE], buf5[MAX_PATH_SIZE], + cmdline[MAX_PATH_SIZE], *p; + DWORD flags = DUPLICATE_CLOSE_SOURCE | DUPLICATE_SAME_ACCESS; + FILE *fp; + + memset(&si, 0, sizeof(si)); + memset(&pi, 0, sizeof(pi)); + + si.cb = sizeof(si); + si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW; + si.wShowWindow = SW_HIDE; + si.hStdError = GetStdHandle(STD_ERROR_HANDLE); + + CreatePipe(&a[0], &a[1], NULL, 0); + CreatePipe(&b[0], &b[1], NULL, 0); + DuplicateHandle(me, a[0], me, &si.hStdInput, 0, TRUE, flags); + DuplicateHandle(me, b[1], me, &si.hStdOutput, 0, TRUE, flags); + + if (interp == NULL && (fp = fopen(cmd, "r")) != NULL) { + buf[0] = buf[1] = '\0'; + fgets(buf, sizeof(buf), fp); + buf[sizeof(buf) - 1] = '\0'; + if (buf[0] == '#' && buf[1] == '!') { + interp = buf + 2; + for (p = interp + strlen(interp) - 1; + isspace(* (uint8_t *) p) && p > interp; p--) *p = '\0'; + } + fclose(fp); + } + + if (interp != NULL) { + abs_path(interp, buf4, ARRAY_SIZE(buf4)); + interp = buf4; + } + abs_path(dir, buf5, ARRAY_SIZE(buf5)); + to_wchar(dir, full_dir, ARRAY_SIZE(full_dir)); + mg_snprintf(cmdline, sizeof(cmdline), "%s%s\"%s\"", + interp ? interp : "", interp ? " " : "", cmd); + to_wchar(cmdline, wcmd, ARRAY_SIZE(wcmd)); + + if (CreateProcessW(NULL, wcmd, NULL, NULL, TRUE, CREATE_NEW_PROCESS_GROUP, + (void *) env, full_dir, &si, &pi) != 0) { + spawn_stdio_thread(sock, a[1], push_to_stdin); + spawn_stdio_thread(sock, b[0], pull_from_stdout); + } else { + CloseHandle(a[1]); + CloseHandle(b[0]); + closesocket(sock); + } + DBG(("CGI command: [%ls] -> %p", wcmd, pi.hProcess)); + + // Not closing a[0] and b[1] because we've used DUPLICATE_CLOSE_SOURCE + CloseHandle(si.hStdOutput); + CloseHandle(si.hStdInput); + //CloseHandle(pi.hThread); + //CloseHandle(pi.hProcess); + + return pi.hProcess; +} +#else +static process_id_t start_process(const char *interp, const char *cmd, + const char *env, const char *envp[], + const char *dir, sock_t sock) { + char buf[500]; + process_id_t pid = fork(); + (void) env; + + if (pid == 0) { + (void) chdir(dir); + (void) dup2(sock, 0); + (void) dup2(sock, 1); + closesocket(sock); + + // After exec, all signal handlers are restored to their default values, + // with one exception of SIGCHLD. According to POSIX.1-2001 and Linux's + // implementation, SIGCHLD's handler will leave unchanged after exec + // if it was set to be ignored. Restore it to default action. + signal(SIGCHLD, SIG_DFL); + + if (interp == NULL) { + execle(cmd, cmd, (char *) 0, envp); // Using (char *) 0 to avoid warning + } else { + execle(interp, interp, cmd, (char *) 0, envp); + } + snprintf(buf, sizeof(buf), "Status: 500\r\n\r\n" + "500 Server Error: %s%s%s: %s", interp == NULL ? "" : interp, + interp == NULL ? "" : " ", cmd, strerror(errno)); + send(1, buf, strlen(buf), 0); + exit(EXIT_FAILURE); // exec call failed + } + + return pid; +} +#endif // _WIN32 + +// This structure helps to create an environment for the spawned CGI program. +// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings, +// last element must be NULL. +// However, on Windows there is a requirement that all these VARIABLE=VALUE\0 +// strings must reside in a contiguous buffer. The end of the buffer is +// marked by two '\0' characters. +// We satisfy both worlds: we create an envp array (which is vars), all +// entries are actually pointers inside buf. +struct cgi_env_block { + struct mg_connection *conn; + char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer + const char *vars[MAX_CGI_ENVIR_VARS]; // char *envp[] + int len; // Space taken + int nvars; // Number of variables in envp[] +}; + +// Append VARIABLE=VALUE\0 string to the buffer, and add a respective +// pointer into the vars array. +static char *addenv(struct cgi_env_block *block, const char *fmt, ...) { + int n, space; + char *added; + va_list ap; + + // Calculate how much space is left in the buffer + space = sizeof(block->buf) - block->len - 2; + assert(space >= 0); + + // Make a pointer to the free space int the buffer + added = block->buf + block->len; + + // Copy VARIABLE=VALUE\0 string into the free space + va_start(ap, fmt); + n = mg_vsnprintf(added, (size_t) space, fmt, ap); + va_end(ap); + + // Make sure we do not overflow buffer and the envp array + if (n > 0 && n + 1 < space && + block->nvars < (int) ARRAY_SIZE(block->vars) - 2) { + // Append a pointer to the added string into the envp array + block->vars[block->nvars++] = added; + // Bump up used length counter. Include \0 terminator + block->len += n + 1; + } + + return added; +} + +static void addenv2(struct cgi_env_block *blk, const char *name) { + const char *s; + if ((s = getenv(name)) != NULL) addenv(blk, "%s=%s", name, s); +} + +static void prepare_cgi_environment(struct connection *conn, + const char *prog, + struct cgi_env_block *blk) { + struct mg_connection *ri = &conn->mg_conn; + const char *s, *slash; + char *p, **opts = conn->server->config_options; + int i; + + blk->len = blk->nvars = 0; + blk->conn = ri; + + if ((s = getenv("SERVER_NAME")) != NULL) { + addenv(blk, "SERVER_NAME=%s", s); + } else { + addenv(blk, "SERVER_NAME=%s", ri->local_ip); + } + addenv(blk, "SERVER_ROOT=%s", opts[DOCUMENT_ROOT]); + addenv(blk, "DOCUMENT_ROOT=%s", opts[DOCUMENT_ROOT]); + addenv(blk, "SERVER_SOFTWARE=%s/%s", "Mongoose", MONGOOSE_VERSION); + + // Prepare the environment block + addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1"); + addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1"); + addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP + + // TODO(lsm): fix this for IPv6 case + //addenv(blk, "SERVER_PORT=%d", ri->remote_port); + + addenv(blk, "REQUEST_METHOD=%s", ri->request_method); + addenv(blk, "REMOTE_ADDR=%s", ri->remote_ip); + addenv(blk, "REMOTE_PORT=%d", ri->remote_port); + addenv(blk, "REQUEST_URI=%s%s%s", ri->uri, + ri->query_string == NULL ? "" : "?", + ri->query_string == NULL ? "" : ri->query_string); + + // SCRIPT_NAME + if (conn->path_info != NULL) { + addenv(blk, "SCRIPT_NAME=%.*s", + (int) (strlen(ri->uri) - strlen(conn->path_info)), ri->uri); + addenv(blk, "PATH_INFO=%s", conn->path_info); + } else { + s = strrchr(prog, '/'); + slash = strrchr(ri->uri, '/'); + addenv(blk, "SCRIPT_NAME=%.*s%s", + slash == NULL ? 0 : (int) (slash - ri->uri), ri->uri, + s == NULL ? prog : s); + } + + addenv(blk, "SCRIPT_FILENAME=%s", prog); + addenv(blk, "PATH_TRANSLATED=%s", prog); + addenv(blk, "HTTPS=%s", conn->ns_conn->ssl != NULL ? "on" : "off"); + + if ((s = mg_get_header(ri, "Content-Type")) != NULL) + addenv(blk, "CONTENT_TYPE=%s", s); + + if (ri->query_string != NULL) + addenv(blk, "QUERY_STRING=%s", ri->query_string); + + if ((s = mg_get_header(ri, "Content-Length")) != NULL) + addenv(blk, "CONTENT_LENGTH=%s", s); + + addenv2(blk, "PATH"); + addenv2(blk, "TMP"); + addenv2(blk, "TEMP"); + addenv2(blk, "TMPDIR"); + addenv2(blk, "PERLLIB"); + addenv2(blk, ENV_EXPORT_TO_CGI); + +#if defined(_WIN32) + addenv2(blk, "COMSPEC"); + addenv2(blk, "SYSTEMROOT"); + addenv2(blk, "SystemDrive"); + addenv2(blk, "ProgramFiles"); + addenv2(blk, "ProgramFiles(x86)"); + addenv2(blk, "CommonProgramFiles(x86)"); +#else + addenv2(blk, "LD_LIBRARY_PATH"); +#endif // _WIN32 + + // Add all headers as HTTP_* variables + for (i = 0; i < ri->num_headers; i++) { + p = addenv(blk, "HTTP_%s=%s", + ri->http_headers[i].name, ri->http_headers[i].value); + + // Convert variable name into uppercase, and change - to _ + for (; *p != '=' && *p != '\0'; p++) { + if (*p == '-') + *p = '_'; + *p = (char) toupper(* (unsigned char *) p); + } + } + + blk->vars[blk->nvars++] = NULL; + blk->buf[blk->len++] = '\0'; + + assert(blk->nvars < (int) ARRAY_SIZE(blk->vars)); + assert(blk->len > 0); + assert(blk->len < (int) sizeof(blk->buf)); +} + +static const char cgi_status[] = "HTTP/1.1 200 OK\r\n"; + +static void open_cgi_endpoint(struct connection *conn, const char *prog) { + struct cgi_env_block blk; + char dir[MAX_PATH_SIZE]; + const char *p; + sock_t fds[2]; + + prepare_cgi_environment(conn, prog, &blk); + // CGI must be executed in its own directory. 'dir' must point to the + // directory containing executable program, 'p' must point to the + // executable program name relative to 'dir'. + if ((p = strrchr(prog, '/')) == NULL) { + mg_snprintf(dir, sizeof(dir), "%s", "."); + } else { + mg_snprintf(dir, sizeof(dir), "%.*s", (int) (p - prog), prog); + } + + // Try to create socketpair in a loop until success. ns_socketpair() + // can be interrupted by a signal and fail. + // TODO(lsm): use sigaction to restart interrupted syscall + do { + ns_socketpair(fds); + } while (fds[0] == INVALID_SOCKET); + + if (start_process(conn->server->config_options[CGI_INTERPRETER], + prog, blk.buf, blk.vars, dir, fds[1]) != 0) { + conn->endpoint_type = EP_CGI; + conn->endpoint.nc = ns_add_sock(&conn->server->ns_mgr, fds[0], + mg_ev_handler, conn); + conn->endpoint.nc->flags |= MG_CGI_CONN; + ns_send(conn->ns_conn, cgi_status, sizeof(cgi_status) - 1); + conn->mg_conn.status_code = 200; + conn->ns_conn->flags |= NSF_BUFFER_BUT_DONT_SEND; + // Pass POST data to the CGI process + conn->endpoint.nc->send_iobuf = conn->ns_conn->recv_iobuf; + iobuf_init(&conn->ns_conn->recv_iobuf, 0); + } else { + closesocket(fds[0]); + send_http_error(conn, 500, "start_process(%s) failed", prog); + } + +#ifndef _WIN32 + closesocket(fds[1]); // On Windows, CGI stdio thread closes that socket +#endif +} + +static void on_cgi_data(struct ns_connection *nc) { + struct connection *conn = (struct connection *) nc->user_data; + const char *status = "500"; + struct mg_connection c; + + if (!conn) return; + + // Copy CGI data from CGI socket to the client send buffer + ns_forward(nc, conn->ns_conn); + + // If reply has not been parsed yet, parse it + if (conn->ns_conn->flags & NSF_BUFFER_BUT_DONT_SEND) { + struct iobuf *io = &conn->ns_conn->send_iobuf; + int s_len = sizeof(cgi_status) - 1; + int len = get_request_len(io->buf + s_len, io->len - s_len); + char buf[MAX_REQUEST_SIZE], *s = buf; + + if (len == 0) return; + + if (len < 0 || len > (int) sizeof(buf)) { + len = io->len; + iobuf_remove(io, io->len); + send_http_error(conn, 500, "CGI program sent malformed headers: [%.*s]", + len, io->buf); + } else { + memset(&c, 0, sizeof(c)); + memcpy(buf, io->buf + s_len, len); + buf[len - 1] = '\0'; + parse_http_headers(&s, &c); + if (mg_get_header(&c, "Location") != NULL) { + status = "302"; + } else if ((status = (char *) mg_get_header(&c, "Status")) == NULL) { + status = "200"; + } + memcpy(io->buf + 9, status, 3); + conn->mg_conn.status_code = atoi(status); + } + conn->ns_conn->flags &= ~NSF_BUFFER_BUT_DONT_SEND; + } +} +#endif // !MONGOOSE_NO_CGI + +static char *mg_strdup(const char *str) { + char *copy = (char *) NS_MALLOC(strlen(str) + 1); + if (copy != NULL) { + strcpy(copy, str); + } + return copy; +} + +static int isbyte(int n) { + return n >= 0 && n <= 255; +} + +static int parse_net(const char *spec, uint32_t *net, uint32_t *mask) { + int n, a, b, c, d, slash = 32, len = 0; + + if ((sscanf(spec, "%d.%d.%d.%d/%d%n", &a, &b, &c, &d, &slash, &n) == 5 || + sscanf(spec, "%d.%d.%d.%d%n", &a, &b, &c, &d, &n) == 4) && + isbyte(a) && isbyte(b) && isbyte(c) && isbyte(d) && + slash >= 0 && slash < 33) { + len = n; + *net = ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8) | d; + *mask = slash ? 0xffffffffU << (32 - slash) : 0; + } + + return len; +} + +// Verify given socket address against the ACL. +// Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed. +static int check_acl(const char *acl, uint32_t remote_ip) { + int allowed, flag; + uint32_t net, mask; + struct vec vec; + + // If any ACL is set, deny by default + allowed = acl == NULL ? '+' : '-'; + + while ((acl = next_option(acl, &vec, NULL)) != NULL) { + flag = vec.ptr[0]; + if ((flag != '+' && flag != '-') || + parse_net(&vec.ptr[1], &net, &mask) == 0) { + return -1; + } + + if (net == (remote_ip & mask)) { + allowed = flag; + } + } + + return allowed == '+'; +} + +// Protect against directory disclosure attack by removing '..', +// excessive '/' and '\' characters +static void remove_double_dots_and_double_slashes(char *s) { + char *p = s; + + while (*s != '\0') { + *p++ = *s++; + if (s[-1] == '/' || s[-1] == '\\') { + // Skip all following slashes, backslashes and double-dots + while (s[0] != '\0') { + if (s[0] == '/' || s[0] == '\\') { s++; } + else if (s[0] == '.' && s[1] == '.') { s += 2; } + else { break; } + } + } + } + *p = '\0'; +} + +int mg_url_decode(const char *src, int src_len, char *dst, + int dst_len, int is_form_url_encoded) { + int i, j, a, b; +#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W') + + for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) { + if (src[i] == '%' && i < src_len - 2 && + isxdigit(* (const unsigned char *) (src + i + 1)) && + isxdigit(* (const unsigned char *) (src + i + 2))) { + a = tolower(* (const unsigned char *) (src + i + 1)); + b = tolower(* (const unsigned char *) (src + i + 2)); + dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b)); + i += 2; + } else if (is_form_url_encoded && src[i] == '+') { + dst[j] = ' '; + } else { + dst[j] = src[i]; + } + } + + dst[j] = '\0'; // Null-terminate the destination + + return i >= src_len ? j : -1; +} + +static int is_valid_http_method(const char *s) { + return !strcmp(s, "GET") || !strcmp(s, "POST") || !strcmp(s, "HEAD") || + !strcmp(s, "CONNECT") || !strcmp(s, "PUT") || !strcmp(s, "DELETE") || + !strcmp(s, "OPTIONS") || !strcmp(s, "PROPFIND") || !strcmp(s, "MKCOL"); +} + +// Parse HTTP request, fill in mg_request structure. +// This function modifies the buffer by NUL-terminating +// HTTP request components, header names and header values. +// Note that len must point to the last \n of HTTP headers. +static int parse_http_message(char *buf, int len, struct mg_connection *ri) { + int is_request, n; + + // Reset the connection. Make sure that we don't touch fields that are + // set elsewhere: remote_ip, remote_port, server_param + ri->request_method = ri->uri = ri->http_version = ri->query_string = NULL; + ri->num_headers = ri->status_code = ri->is_websocket = ri->content_len = 0; + + buf[len - 1] = '\0'; + + // RFC says that all initial whitespaces should be ingored + while (*buf != '\0' && isspace(* (unsigned char *) buf)) { + buf++; + } + ri->request_method = skip(&buf, " "); + ri->uri = skip(&buf, " "); + ri->http_version = skip(&buf, "\r\n"); + + // HTTP message could be either HTTP request or HTTP response, e.g. + // "GET / HTTP/1.0 ...." or "HTTP/1.0 200 OK ..." + is_request = is_valid_http_method(ri->request_method); + if ((is_request && memcmp(ri->http_version, "HTTP/", 5) != 0) || + (!is_request && memcmp(ri->request_method, "HTTP/", 5) != 0)) { + len = -1; + } else { + if (is_request) { + ri->http_version += 5; + } else { + ri->status_code = atoi(ri->uri); + } + parse_http_headers(&buf, ri); + + if ((ri->query_string = strchr(ri->uri, '?')) != NULL) { + *(char *) ri->query_string++ = '\0'; + } + n = (int) strlen(ri->uri); + mg_url_decode(ri->uri, n, (char *) ri->uri, n + 1, 0); + if (*ri->uri == '/' || *ri->uri == '.') { + remove_double_dots_and_double_slashes((char *) ri->uri); + } + } + + return len; +} + +static int lowercase(const char *s) { + return tolower(* (const unsigned char *) s); +} + +static int mg_strcasecmp(const char *s1, const char *s2) { + int diff; + + do { + diff = lowercase(s1++) - lowercase(s2++); + } while (diff == 0 && s1[-1] != '\0'); + + return diff; +} + +static int mg_strncasecmp(const char *s1, const char *s2, size_t len) { + int diff = 0; + + if (len > 0) + do { + diff = lowercase(s1++) - lowercase(s2++); + } while (diff == 0 && s1[-1] != '\0' && --len > 0); + + return diff; +} + +// Return HTTP header value, or NULL if not found. +const char *mg_get_header(const struct mg_connection *ri, const char *s) { + int i; + + for (i = 0; i < ri->num_headers; i++) + if (!mg_strcasecmp(s, ri->http_headers[i].name)) + return ri->http_headers[i].value; + + return NULL; +} + +// Perform case-insensitive match of string against pattern +int mg_match_prefix(const char *pattern, int pattern_len, const char *str) { + const char *or_str; + int len, res, i = 0, j = 0; + + if ((or_str = (const char *) memchr(pattern, '|', pattern_len)) != NULL) { + res = mg_match_prefix(pattern, or_str - pattern, str); + return res > 0 ? res : mg_match_prefix(or_str + 1, + (pattern + pattern_len) - (or_str + 1), str); + } + + for (; i < pattern_len; i++, j++) { + if (pattern[i] == '?' && str[j] != '\0') { + continue; + } else if (pattern[i] == '$') { + return str[j] == '\0' ? j : -1; + } else if (pattern[i] == '*') { + i++; + if (pattern[i] == '*') { + i++; + len = (int) strlen(str + j); + } else { + len = (int) strcspn(str + j, "/"); + } + if (i == pattern_len) { + return j + len; + } + do { + res = mg_match_prefix(pattern + i, pattern_len - i, str + j + len); + } while (res == -1 && len-- > 0); + return res == -1 ? -1 : j + res + len; + } else if (lowercase(&pattern[i]) != lowercase(&str[j])) { + return -1; + } + } + return j; +} + +// This function prints HTML pages, and expands "{{something}}" blocks +// inside HTML by calling appropriate callback functions. +// Note that {{@path/to/file}} construct outputs embedded file's contents, +// which provides SSI-like functionality. +void mg_template(struct mg_connection *conn, const char *s, + struct mg_expansion *expansions) { + int i, j, pos = 0, inside_marker = 0; + + for (i = 0; s[i] != '\0'; i++) { + if (inside_marker == 0 && !memcmp(&s[i], "{{", 2)) { + if (i > pos) { + mg_send_data(conn, &s[pos], i - pos); + } + pos = i; + inside_marker = 1; + } + if (inside_marker == 1 && !memcmp(&s[i], "}}", 2)) { + for (j = 0; expansions[j].keyword != NULL; j++) { + const char *kw = expansions[j].keyword; + if ((int) strlen(kw) == i - (pos + 2) && + memcmp(kw, &s[pos + 2], i - (pos + 2)) == 0) { + expansions[j].handler(conn); + pos = i + 2; + break; + } + } + inside_marker = 0; + } + } + if (i > pos) { + mg_send_data(conn, &s[pos], i - pos); + } +} + +#ifndef MONGOOSE_NO_FILESYSTEM +static int must_hide_file(struct connection *conn, const char *path) { + const char *pw_pattern = "**" PASSWORDS_FILE_NAME "$"; + const char *pattern = conn->server->config_options[HIDE_FILES_PATTERN]; + return mg_match_prefix(pw_pattern, strlen(pw_pattern), path) > 0 || + (pattern != NULL && mg_match_prefix(pattern, strlen(pattern), path) > 0); +} + +// Return 1 if real file has been found, 0 otherwise +static int convert_uri_to_file_name(struct connection *conn, char *buf, + size_t buf_len, file_stat_t *st) { + struct vec a, b; + const char *rewrites = conn->server->config_options[URL_REWRITES]; + const char *root = conn->server->config_options[DOCUMENT_ROOT]; +#ifndef MONGOOSE_NO_CGI + const char *cgi_pat = conn->server->config_options[CGI_PATTERN]; + char *p; +#endif + const char *uri = conn->mg_conn.uri; + const char *domain = mg_get_header(&conn->mg_conn, "Host"); + int match_len, root_len = root == NULL ? 0 : strlen(root); + + // Perform virtual hosting rewrites + if (rewrites != NULL && domain != NULL) { + const char *colon = strchr(domain, ':'); + int domain_len = colon == NULL ? (int) strlen(domain) : colon - domain; + + while ((rewrites = next_option(rewrites, &a, &b)) != NULL) { + if (a.len > 1 && a.ptr[0] == '@' && a.len == domain_len + 1 && + mg_strncasecmp(a.ptr + 1, domain, domain_len) == 0) { + root = b.ptr; + root_len = b.len; + break; + } + } + } + + // No filesystem access + if (root == NULL || root_len == 0) return 0; + + // Handle URL rewrites + mg_snprintf(buf, buf_len, "%.*s%s", root_len, root, uri); + rewrites = conn->server->config_options[URL_REWRITES]; // Re-initialize! + while ((rewrites = next_option(rewrites, &a, &b)) != NULL) { + if ((match_len = mg_match_prefix(a.ptr, a.len, uri)) > 0) { + mg_snprintf(buf, buf_len, "%.*s%s", (int) b.len, b.ptr, uri + match_len); + break; + } + } + + if (stat(buf, st) == 0) return 1; + +#ifndef MONGOOSE_NO_CGI + // Support PATH_INFO for CGI scripts. + for (p = buf + strlen(root) + 2; *p != '\0'; p++) { + if (*p == '/') { + *p = '\0'; + if (mg_match_prefix(cgi_pat, strlen(cgi_pat), buf) > 0 && + !stat(buf, st)) { + DBG(("!!!! [%s]", buf)); + *p = '/'; + conn->path_info = mg_strdup(p); + *p = '\0'; + return 1; + } + *p = '/'; + } + } +#endif + + return 0; +} +#endif // MONGOOSE_NO_FILESYSTEM + +static int should_keep_alive(const struct mg_connection *conn) { + struct connection *c = MG_CONN_2_CONN(conn); + const char *method = conn->request_method; + const char *http_version = conn->http_version; + const char *header = mg_get_header(conn, "Connection"); + return method != NULL && + (!strcmp(method, "GET") || c->endpoint_type == EP_USER) && + ((header != NULL && !mg_strcasecmp(header, "keep-alive")) || + (header == NULL && http_version && !strcmp(http_version, "1.1"))); +} + +size_t mg_write(struct mg_connection *c, const void *buf, int len) { + struct connection *conn = MG_CONN_2_CONN(c); + ns_send(conn->ns_conn, buf, len); + return conn->ns_conn->send_iobuf.len; +} + +void mg_send_status(struct mg_connection *c, int status) { + if (c->status_code == 0) { + c->status_code = status; + mg_printf(c, "HTTP/1.1 %d %s\r\n", status, status_code_to_str(status)); + } +} + +void mg_send_header(struct mg_connection *c, const char *name, const char *v) { + if (c->status_code == 0) { + c->status_code = 200; + mg_printf(c, "HTTP/1.1 %d %s\r\n", 200, status_code_to_str(200)); + } + mg_printf(c, "%s: %s\r\n", name, v); +} + +static void terminate_headers(struct mg_connection *c) { + struct connection *conn = MG_CONN_2_CONN(c); + if (!(conn->ns_conn->flags & MG_HEADERS_SENT)) { + mg_send_header(c, "Transfer-Encoding", "chunked"); + mg_write(c, "\r\n", 2); + conn->ns_conn->flags |= MG_HEADERS_SENT; + } +} + +size_t mg_send_data(struct mg_connection *c, const void *data, int data_len) { + struct connection *conn = MG_CONN_2_CONN(c); + terminate_headers(c); + write_chunk(MG_CONN_2_CONN(c), (const char *) data, data_len); + return conn->ns_conn->send_iobuf.len; +} + +size_t mg_printf_data(struct mg_connection *c, const char *fmt, ...) { + struct connection *conn = MG_CONN_2_CONN(c); + va_list ap; + int len; + char mem[IOBUF_SIZE], *buf = mem; + + terminate_headers(c); + + va_start(ap, fmt); + len = ns_avprintf(&buf, sizeof(mem), fmt, ap); + va_end(ap); + + if (len >= 0) { + write_chunk((struct connection *) conn, buf, len); + } + if (buf != mem && buf != NULL) { + NS_FREE(buf); + } + return conn->ns_conn->send_iobuf.len; +} + +#if !defined(MONGOOSE_NO_WEBSOCKET) || !defined(MONGOOSE_NO_AUTH) +static int is_big_endian(void) { + static const int n = 1; + return ((char *) &n)[0] == 0; +} +#endif + +#ifndef MONGOOSE_NO_WEBSOCKET +// START OF SHA-1 code +// Copyright(c) By Steve Reid +#define SHA1HANDSOFF +#if defined(__sun) +#include "solarisfixes.h" +#endif + +union char64long16 { unsigned char c[64]; uint32_t l[16]; }; + +#define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits)))) + +static uint32_t blk0(union char64long16 *block, int i) { + // Forrest: SHA expect BIG_ENDIAN, swap if LITTLE_ENDIAN + if (!is_big_endian()) { + block->l[i] = (rol(block->l[i], 24) & 0xFF00FF00) | + (rol(block->l[i], 8) & 0x00FF00FF); + } + return block->l[i]; +} + +/* Avoid redefine warning (ARM /usr/include/sys/ucontext.h define R0~R4) */ +#undef blk +#undef R0 +#undef R1 +#undef R2 +#undef R3 +#undef R4 + +#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \ + ^block->l[(i+2)&15]^block->l[i&15],1)) +#define R0(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk0(block, i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R1(v,w,x,y,z,i) z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30); +#define R2(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30); +#define R3(v,w,x,y,z,i) z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30); +#define R4(v,w,x,y,z,i) z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30); + +typedef struct { + uint32_t state[5]; + uint32_t count[2]; + unsigned char buffer[64]; +} SHA1_CTX; + +static void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]) { + uint32_t a, b, c, d, e; + union char64long16 block[1]; + + memcpy(block, buffer, 64); + a = state[0]; + b = state[1]; + c = state[2]; + d = state[3]; + e = state[4]; + R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3); + R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7); + R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11); + R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15); + R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19); + R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23); + R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27); + R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31); + R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35); + R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39); + R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43); + R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47); + R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51); + R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55); + R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59); + R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63); + R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67); + R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71); + R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75); + R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79); + state[0] += a; + state[1] += b; + state[2] += c; + state[3] += d; + state[4] += e; + // Erase working structures. The order of operations is important, + // used to ensure that compiler doesn't optimize those out. + memset(block, 0, sizeof(block)); + a = b = c = d = e = 0; + (void) a; (void) b; (void) c; (void) d; (void) e; +} + +static void SHA1Init(SHA1_CTX *context) { + context->state[0] = 0x67452301; + context->state[1] = 0xEFCDAB89; + context->state[2] = 0x98BADCFE; + context->state[3] = 0x10325476; + context->state[4] = 0xC3D2E1F0; + context->count[0] = context->count[1] = 0; +} + +static void SHA1Update(SHA1_CTX *context, const unsigned char *data, + uint32_t len) { + uint32_t i, j; + + j = context->count[0]; + if ((context->count[0] += len << 3) < j) + context->count[1]++; + context->count[1] += (len>>29); + j = (j >> 3) & 63; + if ((j + len) > 63) { + memcpy(&context->buffer[j], data, (i = 64-j)); + SHA1Transform(context->state, context->buffer); + for ( ; i + 63 < len; i += 64) { + SHA1Transform(context->state, &data[i]); + } + j = 0; + } + else i = 0; + memcpy(&context->buffer[j], &data[i], len - i); +} + +static void SHA1Final(unsigned char digest[20], SHA1_CTX *context) { + unsigned i; + unsigned char finalcount[8], c; + + for (i = 0; i < 8; i++) { + finalcount[i] = (unsigned char)((context->count[(i >= 4 ? 0 : 1)] + >> ((3-(i & 3)) * 8) ) & 255); + } + c = 0200; + SHA1Update(context, &c, 1); + while ((context->count[0] & 504) != 448) { + c = 0000; + SHA1Update(context, &c, 1); + } + SHA1Update(context, finalcount, 8); + for (i = 0; i < 20; i++) { + digest[i] = (unsigned char) + ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255); + } + memset(context, '\0', sizeof(*context)); + memset(&finalcount, '\0', sizeof(finalcount)); +} +// END OF SHA1 CODE + +static void base64_encode(const unsigned char *src, int src_len, char *dst) { + static const char *b64 = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + int i, j, a, b, c; + + for (i = j = 0; i < src_len; i += 3) { + a = src[i]; + b = i + 1 >= src_len ? 0 : src[i + 1]; + c = i + 2 >= src_len ? 0 : src[i + 2]; + + dst[j++] = b64[a >> 2]; + dst[j++] = b64[((a & 3) << 4) | (b >> 4)]; + if (i + 1 < src_len) { + dst[j++] = b64[(b & 15) << 2 | (c >> 6)]; + } + if (i + 2 < src_len) { + dst[j++] = b64[c & 63]; + } + } + while (j % 4 != 0) { + dst[j++] = '='; + } + dst[j++] = '\0'; +} + +static void send_websocket_handshake(struct mg_connection *conn, + const char *key) { + static const char *magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; + char buf[500], sha[20], b64_sha[sizeof(sha) * 2]; + SHA1_CTX sha_ctx; + + mg_snprintf(buf, sizeof(buf), "%s%s", key, magic); + SHA1Init(&sha_ctx); + SHA1Update(&sha_ctx, (unsigned char *) buf, strlen(buf)); + SHA1Final((unsigned char *) sha, &sha_ctx); + base64_encode((unsigned char *) sha, sizeof(sha), b64_sha); + mg_snprintf(buf, sizeof(buf), "%s%s%s", + "HTTP/1.1 101 Switching Protocols\r\n" + "Upgrade: websocket\r\n" + "Connection: Upgrade\r\n" + "Sec-WebSocket-Accept: ", b64_sha, "\r\n\r\n"); + + mg_write(conn, buf, strlen(buf)); +} + +static int deliver_websocket_frame(struct connection *conn) { + // Having buf unsigned char * is important, as it is used below in arithmetic + unsigned char *buf = (unsigned char *) conn->ns_conn->recv_iobuf.buf; + int i, len, buf_len = conn->ns_conn->recv_iobuf.len, frame_len = 0, + mask_len = 0, header_len = 0, data_len = 0, buffered = 0; + + if (buf_len >= 2) { + len = buf[1] & 127; + mask_len = buf[1] & 128 ? 4 : 0; + if (len < 126 && buf_len >= mask_len) { + data_len = len; + header_len = 2 + mask_len; + } else if (len == 126 && buf_len >= 4 + mask_len) { + header_len = 4 + mask_len; + data_len = ((((int) buf[2]) << 8) + buf[3]); + } else if (buf_len >= 10 + mask_len) { + header_len = 10 + mask_len; + data_len = (int) (((uint64_t) htonl(* (uint32_t *) &buf[2])) << 32) + + htonl(* (uint32_t *) &buf[6]); + } + } + + frame_len = header_len + data_len; + buffered = frame_len > 0 && frame_len <= buf_len; + + if (buffered) { + conn->mg_conn.content_len = data_len; + conn->mg_conn.content = (char *) buf + header_len; + conn->mg_conn.wsbits = buf[0]; + + // Apply mask if necessary + if (mask_len > 0) { + for (i = 0; i < data_len; i++) { + buf[i + header_len] ^= (buf + header_len - mask_len)[i % 4]; + } + } + + // Call the handler and remove frame from the iobuf + if (call_user(conn, MG_REQUEST) == MG_FALSE) { + conn->ns_conn->flags |= NSF_FINISHED_SENDING_DATA; + } + iobuf_remove(&conn->ns_conn->recv_iobuf, frame_len); + } + + return buffered; +} + +size_t mg_websocket_write(struct mg_connection *conn, int opcode, + const char *data, size_t data_len) { + unsigned char mem[4192], *copy = mem; + size_t copy_len = 0; + + if (data_len + 10 > sizeof(mem) && + (copy = (unsigned char *) NS_MALLOC(data_len + 10)) == NULL) { + return 0; + } + + copy[0] = 0x80 + (opcode & 0x0f); + + // Frame format: http://tools.ietf.org/html/rfc6455#section-5.2 + if (data_len < 126) { + // Inline 7-bit length field + copy[1] = data_len; + memcpy(copy + 2, data, data_len); + copy_len = 2 + data_len; + } else if (data_len <= 0xFFFF) { + // 16-bit length field + copy[1] = 126; + * (uint16_t *) (copy + 2) = (uint16_t) htons((uint16_t) data_len); + memcpy(copy + 4, data, data_len); + copy_len = 4 + data_len; + } else { + // 64-bit length field + copy[1] = 127; + const uint32_t hi = htonl((uint32_t) ((uint64_t) data_len >> 32)); + const uint32_t lo = htonl(data_len & 0xffffffff); + memcpy(copy+2,&hi,sizeof(hi)); + memcpy(copy+6,&lo,sizeof(lo)); + memcpy(copy + 10, data, data_len); + copy_len = 10 + data_len; + } + + if (copy_len > 0) { + mg_write(conn, copy, copy_len); + } + if (copy != mem) { + NS_FREE(copy); + } + + // If we send closing frame, schedule a connection to be closed after + // data is drained to the client. + if (opcode == WEBSOCKET_OPCODE_CONNECTION_CLOSE) { + MG_CONN_2_CONN(conn)->ns_conn->flags |= NSF_FINISHED_SENDING_DATA; + } + + return MG_CONN_2_CONN(conn)->ns_conn->send_iobuf.len; +} + +size_t mg_websocket_printf(struct mg_connection *conn, int opcode, + const char *fmt, ...) { + char mem[4192], *buf = mem; + va_list ap; + int len; + + va_start(ap, fmt); + if ((len = ns_avprintf(&buf, sizeof(mem), fmt, ap)) > 0) { + mg_websocket_write(conn, opcode, buf, len); + } + va_end(ap); + + if (buf != mem && buf != NULL) { + NS_FREE(buf); + } + + return MG_CONN_2_CONN(conn)->ns_conn->send_iobuf.len; +} + +static void send_websocket_handshake_if_requested(struct mg_connection *conn) { + const char *ver = mg_get_header(conn, "Sec-WebSocket-Version"), + *key = mg_get_header(conn, "Sec-WebSocket-Key"); + if (ver != NULL && key != NULL) { + conn->is_websocket = 1; + if (call_user(MG_CONN_2_CONN(conn), MG_WS_HANDSHAKE) == MG_FALSE) { + send_websocket_handshake(conn, key); + } + call_user(MG_CONN_2_CONN(conn), MG_WS_CONNECT); + } +} + +static void ping_idle_websocket_connection(struct connection *conn, time_t t) { + if (t - conn->ns_conn->last_io_time > MONGOOSE_USE_WEBSOCKET_PING_INTERVAL) { + mg_websocket_write(&conn->mg_conn, WEBSOCKET_OPCODE_PING, "", 0); + } +} +#else +#define ping_idle_websocket_connection(conn, t) +#endif // !MONGOOSE_NO_WEBSOCKET + +static void write_terminating_chunk(struct connection *conn) { + mg_write(&conn->mg_conn, "0\r\n\r\n", 5); +} + +static int call_request_handler(struct connection *conn) { + int result; + conn->mg_conn.content = conn->ns_conn->recv_iobuf.buf; + if ((result = call_user(conn, MG_REQUEST)) == MG_TRUE) { + if (conn->ns_conn->flags & MG_HEADERS_SENT) { + write_terminating_chunk(conn); + } + close_local_endpoint(conn); + } + return result; +} + +const char *mg_get_mime_type(const char *path, const char *default_mime_type) { + const char *ext; + size_t i, path_len; + + path_len = strlen(path); + + for (i = 0; static_builtin_mime_types[i].extension != NULL; i++) { + ext = path + (path_len - static_builtin_mime_types[i].ext_len); + if (path_len > static_builtin_mime_types[i].ext_len && + mg_strcasecmp(ext, static_builtin_mime_types[i].extension) == 0) { + return static_builtin_mime_types[i].mime_type; + } + } + + return default_mime_type; +} + +#ifndef MONGOOSE_NO_FILESYSTEM +// Convert month to the month number. Return -1 on error, or month number +static int get_month_index(const char *s) { + static const char *month_names[] = { + "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" + }; + int i; + + for (i = 0; i < (int) ARRAY_SIZE(month_names); i++) + if (!strcmp(s, month_names[i])) + return i; + + return -1; +} + +static int num_leap_years(int year) { + return year / 4 - year / 100 + year / 400; +} + +// Parse UTC date-time string, and return the corresponding time_t value. +static time_t parse_date_string(const char *datetime) { + static const unsigned short days_before_month[] = { + 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 + }; + char month_str[32]; + int second, minute, hour, day, month, year, leap_days, days; + time_t result = (time_t) 0; + + if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d", + &day, month_str, &year, &hour, &minute, &second) == 6) || + (sscanf(datetime, "%d %3s %d %d:%d:%d", + &day, month_str, &year, &hour, &minute, &second) == 6) || + (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d", + &day, month_str, &year, &hour, &minute, &second) == 6) || + (sscanf(datetime, "%d-%3s-%d %d:%d:%d", + &day, month_str, &year, &hour, &minute, &second) == 6)) && + year > 1970 && + (month = get_month_index(month_str)) != -1) { + leap_days = num_leap_years(year) - num_leap_years(1970); + year -= 1970; + days = year * 365 + days_before_month[month] + (day - 1) + leap_days; + result = days * 24 * 3600 + hour * 3600 + minute * 60 + second; + } + + return result; +} + +// Look at the "path" extension and figure what mime type it has. +// Store mime type in the vector. +static void get_mime_type(const struct mg_server *server, const char *path, + struct vec *vec) { + struct vec ext_vec, mime_vec; + const char *list, *ext; + size_t path_len; + + path_len = strlen(path); + + // Scan user-defined mime types first, in case user wants to + // override default mime types. + list = server->config_options[EXTRA_MIME_TYPES]; + while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) { + // ext now points to the path suffix + ext = path + path_len - ext_vec.len; + if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) { + *vec = mime_vec; + return; + } + } + + vec->ptr = mg_get_mime_type(path, "text/plain"); + vec->len = strlen(vec->ptr); +} + +static const char *suggest_connection_header(const struct mg_connection *conn) { + return should_keep_alive(conn) ? "keep-alive" : "close"; +} + +static void construct_etag(char *buf, size_t buf_len, const file_stat_t *st) { + mg_snprintf(buf, buf_len, "\"%lx.%" INT64_FMT "\"", + (unsigned long) st->st_mtime, (int64_t) st->st_size); +} + +// Return True if we should reply 304 Not Modified. +static int is_not_modified(const struct connection *conn, + const file_stat_t *stp) { + char etag[64]; + const char *ims = mg_get_header(&conn->mg_conn, "If-Modified-Since"); + const char *inm = mg_get_header(&conn->mg_conn, "If-None-Match"); + construct_etag(etag, sizeof(etag), stp); + return (inm != NULL && !mg_strcasecmp(etag, inm)) || + (ims != NULL && stp->st_mtime <= parse_date_string(ims)); +} + +// For given directory path, substitute it to valid index file. +// Return 0 if index file has been found, -1 if not found. +// If the file is found, it's stats is returned in stp. +static int find_index_file(struct connection *conn, char *path, + size_t path_len, file_stat_t *stp) { + const char *list = conn->server->config_options[INDEX_FILES]; + file_stat_t st; + struct vec filename_vec; + size_t n = strlen(path), found = 0; + + // The 'path' given to us points to the directory. Remove all trailing + // directory separator characters from the end of the path, and + // then append single directory separator character. + while (n > 0 && path[n - 1] == '/') { + n--; + } + path[n] = '/'; + + // Traverse index files list. For each entry, append it to the given + // path and see if the file exists. If it exists, break the loop + while ((list = next_option(list, &filename_vec, NULL)) != NULL) { + + // Ignore too long entries that may overflow path buffer + if (filename_vec.len > (int) (path_len - (n + 2))) + continue; + + // Prepare full path to the index file + strncpy(path + n + 1, filename_vec.ptr, filename_vec.len); + path[n + 1 + filename_vec.len] = '\0'; + + //DBG(("[%s]", path)); + + // Does it exist? + if (!stat(path, &st)) { + // Yes it does, break the loop + *stp = st; + found = 1; + break; + } + } + + // If no index file exists, restore directory path + if (!found) { + path[n] = '\0'; + } + + return found; +} + +static int parse_range_header(const char *header, int64_t *a, int64_t *b) { + return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b); +} + +static void gmt_time_string(char *buf, size_t buf_len, time_t *t) { + strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t)); +} + +static void open_file_endpoint(struct connection *conn, const char *path, + file_stat_t *st, const char *extra_headers) { + char date[64], lm[64], etag[64], range[64], headers[1000]; + const char *msg = "OK", *hdr; + time_t curtime = time(NULL); + int64_t r1, r2; + struct vec mime_vec; + int n; + + conn->endpoint_type = EP_FILE; + ns_set_close_on_exec(conn->endpoint.fd); + conn->mg_conn.status_code = 200; + + get_mime_type(conn->server, path, &mime_vec); + conn->cl = st->st_size; + range[0] = '\0'; + + // If Range: header specified, act accordingly + r1 = r2 = 0; + hdr = mg_get_header(&conn->mg_conn, "Range"); + if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0 && + r1 >= 0 && r2 >= 0) { + conn->mg_conn.status_code = 206; + conn->cl = n == 2 ? (r2 > conn->cl ? conn->cl : r2) - r1 + 1: conn->cl - r1; + mg_snprintf(range, sizeof(range), "Content-Range: bytes " + "%" INT64_FMT "-%" INT64_FMT "/%" INT64_FMT "\r\n", + r1, r1 + conn->cl - 1, (int64_t) st->st_size); + msg = "Partial Content"; + lseek(conn->endpoint.fd, r1, SEEK_SET); + } + + // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to + // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3 + gmt_time_string(date, sizeof(date), &curtime); + gmt_time_string(lm, sizeof(lm), &st->st_mtime); + construct_etag(etag, sizeof(etag), st); + + n = mg_snprintf(headers, sizeof(headers), + "HTTP/1.1 %d %s\r\n" + "Date: %s\r\n" + "Last-Modified: %s\r\n" + "Etag: %s\r\n" + "Content-Type: %.*s\r\n" + "Content-Length: %" INT64_FMT "\r\n" + "Connection: %s\r\n" + "Accept-Ranges: bytes\r\n" + "%s%s%s\r\n", + conn->mg_conn.status_code, msg, date, lm, etag, + (int) mime_vec.len, mime_vec.ptr, conn->cl, + suggest_connection_header(&conn->mg_conn), + range, extra_headers == NULL ? "" : extra_headers, + MONGOOSE_USE_EXTRA_HTTP_HEADERS); + ns_send(conn->ns_conn, headers, n); + + if (!strcmp(conn->mg_conn.request_method, "HEAD")) { + conn->ns_conn->flags |= NSF_FINISHED_SENDING_DATA; + close(conn->endpoint.fd); + conn->endpoint_type = EP_NONE; + } +} + +void mg_send_file_data(struct mg_connection *c, int fd) { + struct connection *conn = MG_CONN_2_CONN(c); + conn->endpoint_type = EP_FILE; + conn->endpoint.fd = fd; + ns_set_close_on_exec(conn->endpoint.fd); +} +#endif // MONGOOSE_NO_FILESYSTEM + +static void call_request_handler_if_data_is_buffered(struct connection *conn) { +#ifndef MONGOOSE_NO_WEBSOCKET + if (conn->mg_conn.is_websocket) { + do { } while (deliver_websocket_frame(conn)); + } else +#endif + if (conn->num_bytes_recv >= (conn->cl + conn->request_len) && + call_request_handler(conn) == MG_FALSE) { + open_local_endpoint(conn, 1); + } +} + +#if !defined(MONGOOSE_NO_DIRECTORY_LISTING) || !defined(MONGOOSE_NO_DAV) + +#ifdef _WIN32 +struct dirent { + char d_name[MAX_PATH_SIZE]; +}; + +typedef struct DIR { + HANDLE handle; + WIN32_FIND_DATAW info; + struct dirent result; +} DIR; + +// Implementation of POSIX opendir/closedir/readdir for Windows. +static DIR *opendir(const char *name) { + DIR *dir = NULL; + wchar_t wpath[MAX_PATH_SIZE]; + DWORD attrs; + + if (name == NULL) { + SetLastError(ERROR_BAD_ARGUMENTS); + } else if ((dir = (DIR *) NS_MALLOC(sizeof(*dir))) == NULL) { + SetLastError(ERROR_NOT_ENOUGH_MEMORY); + } else { + to_wchar(name, wpath, ARRAY_SIZE(wpath)); + attrs = GetFileAttributesW(wpath); + if (attrs != 0xFFFFFFFF && + ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) { + (void) wcscat(wpath, L"\\*"); + dir->handle = FindFirstFileW(wpath, &dir->info); + dir->result.d_name[0] = '\0'; + } else { + NS_FREE(dir); + dir = NULL; + } + } + + return dir; +} + +static int closedir(DIR *dir) { + int result = 0; + + if (dir != NULL) { + if (dir->handle != INVALID_HANDLE_VALUE) + result = FindClose(dir->handle) ? 0 : -1; + + NS_FREE(dir); + } else { + result = -1; + SetLastError(ERROR_BAD_ARGUMENTS); + } + + return result; +} + +static struct dirent *readdir(DIR *dir) { + struct dirent *result = 0; + + if (dir) { + if (dir->handle != INVALID_HANDLE_VALUE) { + result = &dir->result; + (void) WideCharToMultiByte(CP_UTF8, 0, + dir->info.cFileName, -1, result->d_name, + sizeof(result->d_name), NULL, NULL); + + if (!FindNextFileW(dir->handle, &dir->info)) { + (void) FindClose(dir->handle); + dir->handle = INVALID_HANDLE_VALUE; + } + + } else { + SetLastError(ERROR_FILE_NOT_FOUND); + } + } else { + SetLastError(ERROR_BAD_ARGUMENTS); + } + + return result; +} +#endif // _WIN32 POSIX opendir/closedir/readdir implementation + +static int scan_directory(struct connection *conn, const char *dir, + struct dir_entry **arr) { + char path[MAX_PATH_SIZE]; + struct dir_entry *p; + struct dirent *dp; + int arr_size = 0, arr_ind = 0, inc = 100; + DIR *dirp; + + *arr = NULL; + if ((dirp = (opendir(dir))) == NULL) return 0; + + while ((dp = readdir(dirp)) != NULL) { + // Do not show current dir and hidden files + if (!strcmp(dp->d_name, ".") || + !strcmp(dp->d_name, "..") || + must_hide_file(conn, dp->d_name)) { + continue; + } + mg_snprintf(path, sizeof(path), "%s%c%s", dir, '/', dp->d_name); + + // Resize the array if nesessary + if (arr_ind >= arr_size) { + if ((p = (struct dir_entry *) + NS_REALLOC(*arr, (inc + arr_size) * sizeof(**arr))) != NULL) { + // Memset new chunk to zero, otherwize st_mtime will have garbage which + // can make strftime() segfault, see + // http://code.google.com/p/mongoose/issues/detail?id=79 + memset(p + arr_size, 0, sizeof(**arr) * inc); + + *arr = p; + arr_size += inc; + } + } + + if (arr_ind < arr_size) { + (*arr)[arr_ind].conn = conn; + (*arr)[arr_ind].file_name = strdup(dp->d_name); + stat(path, &(*arr)[arr_ind].st); + arr_ind++; + } + } + closedir(dirp); + + return arr_ind; +} + +int mg_url_encode(const char *src, size_t s_len, char *dst, size_t dst_len) { + static const char *dont_escape = "._-$,;~()"; + static const char *hex = "0123456789abcdef"; + size_t i = 0, j = 0; + + for (i = j = 0; dst_len > 0 && i < s_len && j + 2 < dst_len - 1; i++, j++) { + if (isalnum(* (const unsigned char *) (src + i)) || + strchr(dont_escape, * (const unsigned char *) (src + i)) != NULL) { + dst[j] = src[i]; + } else if (j + 3 < dst_len) { + dst[j] = '%'; + dst[j + 1] = hex[(* (const unsigned char *) (src + i)) >> 4]; + dst[j + 2] = hex[(* (const unsigned char *) (src + i)) & 0xf]; + j += 2; + } + } + + dst[j] = '\0'; + return j; +} +#endif // !NO_DIRECTORY_LISTING || !MONGOOSE_NO_DAV + +#ifndef MONGOOSE_NO_DIRECTORY_LISTING + +static void print_dir_entry(const struct dir_entry *de) { + char size[64], mod[64], href[MAX_PATH_SIZE * 3]; + int64_t fsize = de->st.st_size; + int is_dir = S_ISDIR(de->st.st_mode); + const char *slash = is_dir ? "/" : ""; + + if (is_dir) { + mg_snprintf(size, sizeof(size), "%s", "[DIRECTORY]"); + } else { + // We use (signed) cast below because MSVC 6 compiler cannot + // convert unsigned __int64 to double. + if (fsize < 1024) { + mg_snprintf(size, sizeof(size), "%d", (int) fsize); + } else if (fsize < 0x100000) { + mg_snprintf(size, sizeof(size), "%.1fk", (double) fsize / 1024.0); + } else if (fsize < 0x40000000) { + mg_snprintf(size, sizeof(size), "%.1fM", (double) fsize / 1048576); + } else { + mg_snprintf(size, sizeof(size), "%.1fG", (double) fsize / 1073741824); + } + } + strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.st_mtime)); + mg_url_encode(de->file_name, strlen(de->file_name), href, sizeof(href)); + mg_printf_data(&de->conn->mg_conn, + "%s%s" + " %s  %s\n", + href, slash, de->file_name, slash, mod, size); +} + +// Sort directory entries by size, or name, or modification time. +// On windows, __cdecl specification is needed in case if project is built +// with __stdcall convention. qsort always requires __cdels callback. +static int __cdecl compare_dir_entries(const void *p1, const void *p2) { + const struct dir_entry *a = (const struct dir_entry *) p1, + *b = (const struct dir_entry *) p2; + const char *qs = a->conn->mg_conn.query_string ? + a->conn->mg_conn.query_string : "na"; + int cmp_result = 0; + + if (S_ISDIR(a->st.st_mode) && !S_ISDIR(b->st.st_mode)) { + return -1; // Always put directories on top + } else if (!S_ISDIR(a->st.st_mode) && S_ISDIR(b->st.st_mode)) { + return 1; // Always put directories on top + } else if (*qs == 'n') { + cmp_result = strcmp(a->file_name, b->file_name); + } else if (*qs == 's') { + cmp_result = a->st.st_size == b->st.st_size ? 0 : + a->st.st_size > b->st.st_size ? 1 : -1; + } else if (*qs == 'd') { + cmp_result = a->st.st_mtime == b->st.st_mtime ? 0 : + a->st.st_mtime > b->st.st_mtime ? 1 : -1; + } + + return qs[1] == 'd' ? -cmp_result : cmp_result; +} + +static void send_directory_listing(struct connection *conn, const char *dir) { + struct dir_entry *arr = NULL; + int i, num_entries, sort_direction = conn->mg_conn.query_string != NULL && + conn->mg_conn.query_string[1] == 'd' ? 'a' : 'd'; + + mg_send_header(&conn->mg_conn, "Transfer-Encoding", "chunked"); + mg_send_header(&conn->mg_conn, "Content-Type", "text/html; charset=utf-8"); + + mg_printf_data(&conn->mg_conn, + "Index of %s" + "" + "

Index of %s

"
+              ""
+              ""
+              ""
+              "",
+              conn->mg_conn.uri, conn->mg_conn.uri,
+              sort_direction, sort_direction, sort_direction);
+
+  num_entries = scan_directory(conn, dir, &arr);
+  qsort(arr, num_entries, sizeof(arr[0]), compare_dir_entries);
+  for (i = 0; i < num_entries; i++) {
+    print_dir_entry(&arr[i]);
+    NS_FREE(arr[i].file_name);
+  }
+  NS_FREE(arr);
+
+  write_terminating_chunk(conn);
+  close_local_endpoint(conn);
+}
+#endif  // MONGOOSE_NO_DIRECTORY_LISTING
+
+#ifndef MONGOOSE_NO_DAV
+static void print_props(struct connection *conn, const char *uri,
+                        file_stat_t *stp) {
+  char mtime[64];
+
+  gmt_time_string(mtime, sizeof(mtime), &stp->st_mtime);
+  mg_printf(&conn->mg_conn,
+      ""
+       "%s"
+       ""
+        ""
+         "%s"
+         "%" INT64_FMT ""
+         "%s"
+        ""
+        "HTTP/1.1 200 OK"
+       ""
+      "\n",
+      uri, S_ISDIR(stp->st_mode) ? "" : "",
+      (int64_t) stp->st_size, mtime);
+}
+
+static void handle_propfind(struct connection *conn, const char *path,
+                            file_stat_t *stp, int exists) {
+  static const char header[] = "HTTP/1.1 207 Multi-Status\r\n"
+    "Connection: close\r\n"
+    "Content-Type: text/xml; charset=utf-8\r\n\r\n"
+    ""
+    "\n";
+  static const char footer[] = "";
+  const char *depth = mg_get_header(&conn->mg_conn, "Depth");
+#ifdef MONGOOSE_NO_DIRECTORY_LISTING
+  const char *list_dir = "no";
+#else
+  const char *list_dir = conn->server->config_options[ENABLE_DIRECTORY_LISTING];
+#endif
+
+  conn->mg_conn.status_code = 207;
+
+  // Print properties for the requested resource itself
+  if (!exists) {
+    conn->mg_conn.status_code = 404;
+    mg_printf(&conn->mg_conn, "%s", "HTTP/1.1 404 Not Found\r\n\r\n");
+  } else if (S_ISDIR(stp->st_mode) && mg_strcasecmp(list_dir, "yes") != 0) {
+    conn->mg_conn.status_code = 403;
+    mg_printf(&conn->mg_conn, "%s",
+              "HTTP/1.1 403 Directory Listing Denied\r\n\r\n");
+  } else {
+    ns_send(conn->ns_conn, header, sizeof(header) - 1);
+    print_props(conn, conn->mg_conn.uri, stp);
+
+    if (S_ISDIR(stp->st_mode) &&
+             (depth == NULL || strcmp(depth, "0") != 0)) {
+      struct dir_entry *arr = NULL;
+      int i, num_entries = scan_directory(conn, path, &arr);
+
+      for (i = 0; i < num_entries; i++) {
+        char buf[MAX_PATH_SIZE * 3];
+        struct dir_entry *de = &arr[i];
+        mg_url_encode(de->file_name, strlen(de->file_name), buf, sizeof(buf));
+        print_props(conn, buf, &de->st);
+        NS_FREE(de->file_name);
+      }
+      NS_FREE(arr);
+    }
+    ns_send(conn->ns_conn, footer, sizeof(footer) - 1);
+  }
+
+  close_local_endpoint(conn);
+}
+
+static void handle_mkcol(struct connection *conn, const char *path) {
+  int status_code = 500;
+
+  if (conn->mg_conn.content_len > 0) {
+    status_code = 415;
+  } else if (!mkdir(path, 0755)) {
+    status_code = 201;
+  } else if (errno == EEXIST) {
+    status_code = 405;
+  } else if (errno == EACCES) {
+    status_code = 403;
+  } else if (errno == ENOENT) {
+    status_code = 409;
+  }
+  send_http_error(conn, status_code, NULL);
+}
+
+static int remove_directory(const char *dir) {
+  char path[MAX_PATH_SIZE];
+  struct dirent *dp;
+  file_stat_t st;
+  DIR *dirp;
+
+  if ((dirp = opendir(dir)) == NULL) return 0;
+
+  while ((dp = readdir(dirp)) != NULL) {
+    if (!strcmp(dp->d_name, ".") || !strcmp(dp->d_name, "..")) continue;
+    mg_snprintf(path, sizeof(path), "%s%c%s", dir, '/', dp->d_name);
+    stat(path, &st);
+    if (S_ISDIR(st.st_mode)) {
+      remove_directory(path);
+    } else {
+      remove(path);
+    }
+  }
+  closedir(dirp);
+  rmdir(dir);
+
+  return 1;
+}
+
+static void handle_delete(struct connection *conn, const char *path) {
+  file_stat_t st;
+
+  if (stat(path, &st) != 0) {
+    send_http_error(conn, 404, NULL);
+  } else if (S_ISDIR(st.st_mode)) {
+    remove_directory(path);
+    send_http_error(conn, 204, NULL);
+  } else if (remove(path) == 0) {
+    send_http_error(conn, 204, NULL);
+  } else {
+    send_http_error(conn, 423, NULL);
+  }
+}
+
+// For a given PUT path, create all intermediate subdirectories
+// for given path. Return 0 if the path itself is a directory,
+// or -1 on error, 1 if OK.
+static int put_dir(const char *path) {
+  char buf[MAX_PATH_SIZE];
+  const char *s, *p;
+  file_stat_t st;
+
+  // Create intermediate directories if they do not exist
+  for (s = p = path + 1; (p = strchr(s, '/')) != NULL; s = ++p) {
+    if (p - path >= (int) sizeof(buf)) return -1; // Buffer overflow
+    memcpy(buf, path, p - path);
+    buf[p - path] = '\0';
+    if (stat(buf, &st) != 0 && mkdir(buf, 0755) != 0) return -1;
+    if (p[1] == '\0') return 0;  // Path is a directory itself
+  }
+
+  return 1;
+}
+
+static void handle_put(struct connection *conn, const char *path) {
+  file_stat_t st;
+  const char *range, *cl_hdr = mg_get_header(&conn->mg_conn, "Content-Length");
+  int64_t r1, r2;
+  int rc;
+
+  conn->mg_conn.status_code = !stat(path, &st) ? 200 : 201;
+  if ((rc = put_dir(path)) == 0) {
+    mg_printf(&conn->mg_conn, "HTTP/1.1 %d OK\r\n\r\n",
+              conn->mg_conn.status_code);
+    close_local_endpoint(conn);
+  } else if (rc == -1) {
+    send_http_error(conn, 500, "put_dir: %s", strerror(errno));
+  } else if (cl_hdr == NULL) {
+    send_http_error(conn, 411, NULL);
+  } else if ((conn->endpoint.fd =
+              open(path, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, 0644)) < 0) {
+    send_http_error(conn, 500, "open(%s): %s", path, strerror(errno));
+  } else {
+    DBG(("PUT [%s] %lu", path, (unsigned long) conn->ns_conn->recv_iobuf.len));
+    conn->endpoint_type = EP_PUT;
+    ns_set_close_on_exec(conn->endpoint.fd);
+    range = mg_get_header(&conn->mg_conn, "Content-Range");
+    conn->cl = to64(cl_hdr);
+    r1 = r2 = 0;
+    if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
+      conn->mg_conn.status_code = 206;
+      lseek(conn->endpoint.fd, r1, SEEK_SET);
+      conn->cl = r2 > r1 ? r2 - r1 + 1: conn->cl - r1;
+    }
+    mg_printf(&conn->mg_conn, "HTTP/1.1 %d OK\r\nContent-Length: 0\r\n\r\n",
+              conn->mg_conn.status_code);
+  }
+}
+
+static void forward_put_data(struct connection *conn) {
+  struct iobuf *io = &conn->ns_conn->recv_iobuf;
+  size_t k = conn->cl < (int64_t) io->len ? conn->cl : (int64_t) io->len;   // To write
+  int n = write(conn->endpoint.fd, io->buf, k);   // Write them!
+  if (n > 0) {
+    iobuf_remove(io, n);
+    conn->cl -= n;
+  }
+  if (conn->cl <= 0) {
+    close_local_endpoint(conn);
+  }
+}
+#endif //  MONGOOSE_NO_DAV
+
+static void send_options(struct connection *conn) {
+  conn->mg_conn.status_code = 200;
+  mg_printf(&conn->mg_conn, "%s",
+            "HTTP/1.1 200 OK\r\nAllow: GET, POST, HEAD, CONNECT, PUT, "
+            "DELETE, OPTIONS, PROPFIND, MKCOL\r\nDAV: 1\r\n\r\n");
+  close_local_endpoint(conn);
+}
+
+#ifndef MONGOOSE_NO_AUTH
+void mg_send_digest_auth_request(struct mg_connection *c) {
+  struct connection *conn = MG_CONN_2_CONN(c);
+  c->status_code = 401;
+  mg_printf(c,
+            "HTTP/1.1 401 Unauthorized\r\n"
+            "WWW-Authenticate: Digest qop=\"auth\", "
+            "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
+            conn->server->config_options[AUTH_DOMAIN],
+            (unsigned long) time(NULL));
+  close_local_endpoint(conn);
+}
+
+// Use the global passwords file, if specified by auth_gpass option,
+// or search for .htpasswd in the requested directory.
+static FILE *open_auth_file(struct connection *conn, const char *path,
+                            int is_directory) {
+  char name[MAX_PATH_SIZE];
+  const char *p, *gpass = conn->server->config_options[GLOBAL_AUTH_FILE];
+  FILE *fp = NULL;
+
+  if (gpass != NULL) {
+    // Use global passwords file
+    fp = fopen(gpass, "r");
+  } else if (is_directory) {
+    mg_snprintf(name, sizeof(name), "%s%c%s", path, '/', PASSWORDS_FILE_NAME);
+    fp = fopen(name, "r");
+  } else {
+    // Try to find .htpasswd in requested directory.
+    if ((p = strrchr(path, '/')) == NULL) p = path;
+    mg_snprintf(name, sizeof(name), "%.*s%c%s",
+                (int) (p - path), path, '/', PASSWORDS_FILE_NAME);
+    fp = fopen(name, "r");
+  }
+
+  return fp;
+}
+
+#if !defined(HAVE_MD5) && !defined(MONGOOSE_NO_AUTH)
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.	This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ */
+
+typedef struct MD5Context {
+  uint32_t buf[4];
+  uint32_t bits[2];
+  unsigned char in[64];
+} MD5_CTX;
+
+static void byteReverse(unsigned char *buf, unsigned longs) {
+  uint32_t t;
+
+  // Forrest: MD5 expect LITTLE_ENDIAN, swap if BIG_ENDIAN
+  if (is_big_endian()) {
+    do {
+      t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+        ((unsigned) buf[1] << 8 | buf[0]);
+      * (uint32_t *) buf = t;
+      buf += 4;
+    } while (--longs);
+  }
+}
+
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+#define MD5STEP(f, w, x, y, z, data, s) \
+  ( w += f(x, y, z) + data,  w = w<>(32-s),  w += x )
+
+// Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
+// initialization constants.
+static void MD5Init(MD5_CTX *ctx) {
+  ctx->buf[0] = 0x67452301;
+  ctx->buf[1] = 0xefcdab89;
+  ctx->buf[2] = 0x98badcfe;
+  ctx->buf[3] = 0x10325476;
+
+  ctx->bits[0] = 0;
+  ctx->bits[1] = 0;
+}
+
+static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
+  register uint32_t a, b, c, d;
+
+  a = buf[0];
+  b = buf[1];
+  c = buf[2];
+  d = buf[3];
+
+  MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+  MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+  MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+  MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+  MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+  MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+  MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+  MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+  MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+  MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+  MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+  MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+  MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+  MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+  MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+  MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+  MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+  MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+  MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+  MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+  MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+  MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+  MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+  MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+  MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+  MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+  MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+  MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+  MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+  MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+  MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+  MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+  MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+  MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+  MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+  MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+  MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+  MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+  MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+  MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+  MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+  MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+  MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+  MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+  MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+  MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+  MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+  MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+  MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+  MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+  MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+  MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+  MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+  MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+  MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+  MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+  MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+  MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+  MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+  MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+  MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+  MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+  MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+  MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+  buf[0] += a;
+  buf[1] += b;
+  buf[2] += c;
+  buf[3] += d;
+}
+
+static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
+  uint32_t t;
+
+  t = ctx->bits[0];
+  if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
+    ctx->bits[1]++;
+  ctx->bits[1] += len >> 29;
+
+  t = (t >> 3) & 0x3f;
+
+  if (t) {
+    unsigned char *p = (unsigned char *) ctx->in + t;
+
+    t = 64 - t;
+    if (len < t) {
+      memcpy(p, buf, len);
+      return;
+    }
+    memcpy(p, buf, t);
+    byteReverse(ctx->in, 16);
+    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+    buf += t;
+    len -= t;
+  }
+
+  while (len >= 64) {
+    memcpy(ctx->in, buf, 64);
+    byteReverse(ctx->in, 16);
+    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+    buf += 64;
+    len -= 64;
+  }
+
+  memcpy(ctx->in, buf, len);
+}
+
+static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
+  unsigned count;
+  unsigned char *p;
+  uint32_t *a;
+
+  count = (ctx->bits[0] >> 3) & 0x3F;
+
+  p = ctx->in + count;
+  *p++ = 0x80;
+  count = 64 - 1 - count;
+  if (count < 8) {
+    memset(p, 0, count);
+    byteReverse(ctx->in, 16);
+    MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+    memset(ctx->in, 0, 56);
+  } else {
+    memset(p, 0, count - 8);
+  }
+  byteReverse(ctx->in, 14);
+
+  a = (uint32_t *)ctx->in;
+  a[14] = ctx->bits[0];
+  a[15] = ctx->bits[1];
+
+  MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+  byteReverse((unsigned char *) ctx->buf, 4);
+  memcpy(digest, ctx->buf, 16);
+  memset((char *) ctx, 0, sizeof(*ctx));
+}
+#endif // !HAVE_MD5
+
+
+
+// Stringify binary data. Output buffer must be twice as big as input,
+// because each byte takes 2 bytes in string representation
+static void bin2str(char *to, const unsigned char *p, size_t len) {
+  static const char *hex = "0123456789abcdef";
+
+  for (; len--; p++) {
+    *to++ = hex[p[0] >> 4];
+    *to++ = hex[p[0] & 0x0f];
+  }
+  *to = '\0';
+}
+
+// Return stringified MD5 hash for list of strings. Buffer must be 33 bytes.
+char *mg_md5(char buf[33], ...) {
+  unsigned char hash[16];
+  const char *p;
+  va_list ap;
+  MD5_CTX ctx;
+
+  MD5Init(&ctx);
+
+  va_start(ap, buf);
+  while ((p = va_arg(ap, const char *)) != NULL) {
+    MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
+  }
+  va_end(ap);
+
+  MD5Final(hash, &ctx);
+  bin2str(buf, hash, sizeof(hash));
+  return buf;
+}
+
+// Check the user's password, return 1 if OK
+static int check_password(const char *method, const char *ha1, const char *uri,
+                          const char *nonce, const char *nc, const char *cnonce,
+                          const char *qop, const char *response) {
+  char ha2[32 + 1], expected_response[32 + 1];
+
+#if 0
+  // Check for authentication timeout
+  if ((unsigned long) time(NULL) - (unsigned long) to64(nonce) > 3600 * 2) {
+    return 0;
+  }
+#endif
+
+  mg_md5(ha2, method, ":", uri, NULL);
+  mg_md5(expected_response, ha1, ":", nonce, ":", nc,
+      ":", cnonce, ":", qop, ":", ha2, NULL);
+
+  return mg_strcasecmp(response, expected_response) == 0 ? MG_TRUE : MG_FALSE;
+}
+
+
+// Authorize against the opened passwords file. Return 1 if authorized.
+int mg_authorize_digest(struct mg_connection *c, FILE *fp) {
+  struct connection *conn = MG_CONN_2_CONN(c);
+  const char *hdr;
+  char line[256], f_user[256], ha1[256], f_domain[256], user[100], nonce[100],
+       uri[MAX_REQUEST_SIZE], cnonce[100], resp[100], qop[100], nc[100];
+
+  if (c == NULL || fp == NULL) return 0;
+  if ((hdr = mg_get_header(c, "Authorization")) == NULL ||
+      mg_strncasecmp(hdr, "Digest ", 7) != 0) return 0;
+  if (!mg_parse_header(hdr, "username", user, sizeof(user))) return 0;
+  if (!mg_parse_header(hdr, "cnonce", cnonce, sizeof(cnonce))) return 0;
+  if (!mg_parse_header(hdr, "response", resp, sizeof(resp))) return 0;
+  if (!mg_parse_header(hdr, "uri", uri, sizeof(uri))) return 0;
+  if (!mg_parse_header(hdr, "qop", qop, sizeof(qop))) return 0;
+  if (!mg_parse_header(hdr, "nc", nc, sizeof(nc))) return 0;
+  if (!mg_parse_header(hdr, "nonce", nonce, sizeof(nonce))) return 0;
+
+  while (fgets(line, sizeof(line), fp) != NULL) {
+    if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) == 3 &&
+        !strcmp(user, f_user) &&
+        // NOTE(lsm): due to a bug in MSIE, we do not compare URIs
+        !strcmp(conn->server->config_options[AUTH_DOMAIN], f_domain))
+      return check_password(c->request_method, ha1, uri,
+                            nonce, nc, cnonce, qop, resp);
+  }
+  return MG_FALSE;
+}
+
+
+// Return 1 if request is authorised, 0 otherwise.
+static int is_authorized(struct connection *conn, const char *path,
+                         int is_directory) {
+  FILE *fp;
+  int authorized = MG_TRUE;
+
+  if ((fp = open_auth_file(conn, path, is_directory)) != NULL) {
+    authorized = mg_authorize_digest(&conn->mg_conn, fp);
+    fclose(fp);
+  }
+
+  return authorized;
+}
+
+static int is_authorized_for_dav(struct connection *conn) {
+  const char *auth_file = conn->server->config_options[DAV_AUTH_FILE];
+  const char *method = conn->mg_conn.request_method;
+  FILE *fp;
+  int authorized = MG_FALSE;
+
+  // If dav_auth_file is not set, allow non-authorized PROPFIND
+  if (method != NULL && !strcmp(method, "PROPFIND") && auth_file == NULL) {
+    authorized = MG_TRUE;
+  } else if (auth_file != NULL && (fp = fopen(auth_file, "r")) != NULL) {
+    authorized = mg_authorize_digest(&conn->mg_conn, fp);
+    fclose(fp);
+  }
+
+  return authorized;
+}
+
+static int is_dav_request(const struct connection *conn) {
+  const char *s = conn->mg_conn.request_method;
+  return !strcmp(s, "PUT") || !strcmp(s, "DELETE") ||
+    !strcmp(s, "MKCOL") || !strcmp(s, "PROPFIND");
+}
+#endif // MONGOOSE_NO_AUTH
+
+static int parse_header(const char *str, int str_len, const char *var_name,
+                        char *buf, size_t buf_size) {
+  int ch = ' ', ch1 = ',', len = 0, n = strlen(var_name);
+  const char *p, *end = str + str_len, *s = NULL;
+
+  if (buf != NULL && buf_size > 0) buf[0] = '\0';
+
+  // Find where variable starts
+  for (s = str; s != NULL && s + n < end; s++) {
+    if ((s == str || s[-1] == ch || s[-1] == ch1) && s[n] == '=' &&
+        !memcmp(s, var_name, n)) break;
+  }
+
+  if (s != NULL && &s[n + 1] < end) {
+    s += n + 1;
+    if (*s == '"' || *s == '\'') ch = ch1 = *s++;
+    p = s;
+    while (p < end && p[0] != ch && p[0] != ch1 && len < (int) buf_size) {
+      if (ch == ch1 && p[0] == '\\' && p[1] == ch) p++;
+      buf[len++] = *p++;
+    }
+    if (len >= (int) buf_size || (ch != ' ' && *p != ch)) {
+      len = 0;
+    } else {
+      if (len > 0 && s[len - 1] == ',') len--;
+      if (len > 0 && s[len - 1] == ';') len--;
+      buf[len] = '\0';
+    }
+  }
+
+  return len;
+}
+
+int mg_parse_header(const char *s, const char *var_name, char *buf,
+                    size_t buf_size) {
+  return parse_header(s, s == NULL ? 0 : strlen(s), var_name, buf, buf_size);
+}
+
+#ifndef MONGOOSE_NO_SSI
+static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
+
+static void send_file_data(struct mg_connection *conn, FILE *fp) {
+  char buf[IOBUF_SIZE];
+  int n;
+  while ((n = fread(buf, 1, sizeof(buf), fp)) > 0) {
+    mg_write(conn, buf, n);
+  }
+}
+
+static void do_ssi_include(struct mg_connection *conn, const char *ssi,
+                           char *tag, int include_level) {
+  char file_name[IOBUF_SIZE], path[MAX_PATH_SIZE], *p;
+  char **opts = (MG_CONN_2_CONN(conn))->server->config_options;
+  FILE *fp;
+
+  // sscanf() is safe here, since send_ssi_file() also uses buffer
+  // of size MG_BUF_LEN to get the tag. So strlen(tag) is always < MG_BUF_LEN.
+  if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
+    // File name is relative to the webserver root
+    mg_snprintf(path, sizeof(path), "%s%c%s",
+                opts[DOCUMENT_ROOT], '/', file_name);
+  } else if (sscanf(tag, " abspath=\"%[^\"]\"", file_name) == 1) {
+    // File name is relative to the webserver working directory
+    // or it is absolute system path
+    mg_snprintf(path, sizeof(path), "%s", file_name);
+  } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1 ||
+             sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
+    // File name is relative to the currect document
+    mg_snprintf(path, sizeof(path), "%s", ssi);
+    if ((p = strrchr(path, '/')) != NULL) {
+      p[1] = '\0';
+    }
+    mg_snprintf(path + strlen(path), sizeof(path) - strlen(path), "%s",
+                file_name);
+  } else {
+    mg_printf(conn, "Bad SSI #include: [%s]", tag);
+    return;
+  }
+
+  if ((fp = fopen(path, "rb")) == NULL) {
+    mg_printf(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
+              tag, path, strerror(errno));
+  } else {
+    ns_set_close_on_exec(fileno(fp));
+    if (mg_match_prefix(opts[SSI_PATTERN], strlen(opts[SSI_PATTERN]),
+        path) > 0) {
+      send_ssi_file(conn, path, fp, include_level + 1);
+    } else {
+      send_file_data(conn, fp);
+    }
+    fclose(fp);
+  }
+}
+
+#ifndef MONGOOSE_NO_POPEN
+static void do_ssi_exec(struct mg_connection *conn, char *tag) {
+  char cmd[IOBUF_SIZE];
+  FILE *fp;
+
+  if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
+    mg_printf(conn, "Bad SSI #exec: [%s]", tag);
+  } else if ((fp = popen(cmd, "r")) == NULL) {
+    mg_printf(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(errno));
+  } else {
+    send_file_data(conn, fp);
+    pclose(fp);
+  }
+}
+#endif // !MONGOOSE_NO_POPEN
+
+static void send_ssi_file(struct mg_connection *conn, const char *path,
+                          FILE *fp, int include_level) {
+  char buf[IOBUF_SIZE];
+  int ch, offset, len, in_ssi_tag;
+
+  if (include_level > 10) {
+    mg_printf(conn, "SSI #include level is too deep (%s)", path);
+    return;
+  }
+
+  in_ssi_tag = len = offset = 0;
+  while ((ch = fgetc(fp)) != EOF) {
+    if (in_ssi_tag && ch == '>') {
+      in_ssi_tag = 0;
+      buf[len++] = (char) ch;
+      buf[len] = '\0';
+      assert(len <= (int) sizeof(buf));
+      if (len < 6 || memcmp(buf, "
NameModifiedSize