Mongoose rebrand changes

PUBLISHED_FROM=50497043e8d0c10487804263cdcb1cbb260d5a26
Rename Mongoose constants: NS_ -> MG_, NSF_ -> MG_F_
2026-10-26 12:14:56 +00:00 · 2015-09-21 15:19:35 +01:00 · 2015-09-21 15:19:34 +01:00 · 2015-09-21 15:19:34 +01:00 · 2015-09-21 15:19:33 +01:00 · 2015-09-21 15:19:33 +01:00
141 changed files with 162253 additions and 9823 deletions
@@ -1,20 +0,0 @@
 language: cpp
 env:
 matrix:
  - MONGOOSE_NO_SOCKETPAIR
  - MONGOOSE_NO_FILESYSTEM
  - MONGOOSE_NO_AUTH
  - MONGOOSE_NO_DAV
  - MONGOOSE_NO_DIRECTORY_LISTING
  - MONGOOSE_NO_LOGGING
  - MONGOOSE_NO_SSI
  - MONGOOSE_NO_DL
  - MONGOOSE_NO_WEBSOCKET
 compiler:
  - gcc
  - clang
 script:
  - cd test && make
@@ -1,16 +1,16 @@
 Copyright (c) 2004-2013 Sergey Lyubka <valenok@gmail.com>
-Copyright (c) 2013 Cesanta Software Limited
+Copyright (c) 2013-2015 Cesanta Software Limited
 All rights reserved
-This code is dual-licensed: you can redistribute it and/or modify
+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 <http://www.gnu.org/licenses>.
+license, see <http://www.gnu.org/licenses/>.
-You are free to use this code under the terms of the GNU General
+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 code under a commercial
+Alternatively, you can license this software under a commercial
-license, as set out in <http://cesanta.com/>.
+license, as set out in <https://www.cesanta.com/license>.
@@ -1,86 +1,101 @@
-# <img src="http://cesanta.com/images/mongoose_logo.png" width="64" height="64"> Mongoose Web Server
+# <img src="http://www.cesanta.com/hubfs/www.cesanta.com/Images/mongoose_library.png" width="64" height="64"> Mongoose - Embedded 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.
+[![Join the chat at https://gitter.im/cesanta/mongoose](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/cesanta/mongoose?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-Mongoose is built on top of Libmongoose embedded library, which can turn
+![](https://img.shields.io/badge/license-GPL_2-green.svg "License")
 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)
+Mongoose is ideal for embedded environments, it has been designed as an open
-   * [Downloads](http://cesanta.com/mongoose.shtml)
+source platform for connecting devices and bringing them online.
-   * [Documentation](http://cesanta.com/docs.shtml)
+[Mongoose](https://www.cesanta.com/products)
 has been on the market since 2004 and attracted
 over 1 million cumulative downloads.
 It provides easy to use event-driven interface that allows to implement
 network protocols or scalable network applications  with little effort.
 Mongoose helps developers to manage the complexity of network programming
 and let them concentrate on the logic, saving time and money.
 [Download Mongoose Source Code here](http://hubs.ly/H0150FK0)
 > Nothing overdone. Nothing less. So unbelievably easy to use.
 > Just how good software should be!
 > - Pritin Tyagaraj, SAP
 # Features
- Works on Windows, Mac, UNIX/Linux, iPhone, Android eCos, QNX
+* Cross-platform: works on Linux/UNIX, QNX, eCos, Windows, Android, iPhone, etc
-and many other platforms
+* Single-threaded, asynchronous, non-blocking core with simple event-based API
- CGI, SSI, SSL, Digest auth, Websocket, WEbDAV, Resumed download,
+* Builtin protocols:
-  URL rewrite, file blacklist
+   - plain TCP, plain UDP, SSL/TLS (over TCP, one-way or two-way)
- Custom error pages, Virtual hosts, IP-based ACL, Windows service,
+   - HTTP client, HTTP server
-  HTTP/HTTPS client
+   - Websocket client, Websocket server
- Simple and clean
+   - JSON-RPC client, JSON-RPC server
-  [embedding API](https://github.com/cesanta/mongoose/blob/master/mongoose.h).
+   - MQTT client, MQTT broker
-  The source is in single
+   - CoAP client, CoAP server
-  [mongoose.c](https://github.com/cesanta/mongoose/blob/master/mongoose.c) file
+   - DNS client, DNS server, async DNS resolver
-  to make embedding easy
+* Tiny static and run-time footprint
- Extremely lightweight, has a core of under 40kB and tiny runtime footprint
+* Source code is both ISO C and ISO C++ compliant
- Asynchronous, non-blocking core supporting single- or multi-threaded usage
+* Very easy to integrate: just copy
- On the market since 2004 with over 1 million cumulative downloads
+  [mongoose.c](https://raw.githubusercontent.com/cesanta/mongoose/master/mongoose.c) and
- Stable, mature and tested, has several man-years invested
+  [mongoose.h](https://raw.githubusercontent.com/cesanta/mongoose/master/mongoose.h)
-  in continuous improvement and refinement
+  files to your build tree
 * Extensively tested and production-ready, trusted by many blue chip businesses
-# Screenshots
+# Examples & Documentation
-Download, double-click to start, run browser -- that's all!
+- [User Guide](https://docs.cesanta.com/mongoose) - Detailed User Guide and API reference
 - [examples](examples) - Collection of well-commented examples. To build any example,
 go into respective directory and type `make`
-![shot1](http://cesanta.com/images/tut_sharing/tut1.png)
+# Dashboard Example
 ![shot2](http://cesanta.com/images/tut_sharing/tut2.png)
-![shot3](http://cesanta.com/images/tut_sharing/tut3.png)
+Mongoose is often used to implement device dashboards and real-time
-![shot4](http://cesanta.com/images/tut_sharing/tut4.png)
+data exchange over Websocket. Here is a dashboard example that illustrates
 the functionality:
-# Acknowledgements
+![](http://www.cesanta.com/hubfs/www.cesanta.com/diagrams/dash_mongoose_diagram.png)
-Mongoose made better thanks to the contribution of following people:
+[Developing a new product? Contact us today to discuss how Mongoose can help
 ](https://www.cesanta.com/contact)
 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
+You are using Mongoose under
-[GNU GPL v.2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html) open
+[GPLv2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
-source licenses. The GPLv2 open source License does not generally permit
+and until you commercialize your
-incorporating this software into non-open source programs. 
+application, can continue to use Mongoose free of charge.
 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
+Once you commercialize your product, in order to comply with GPLv2
 you need to either open the source code of your product fully or
 alternatively purchase a commercial license.
 We offer [three levels of commercial licensing](https://www.cesanta.com/products):
- [SSL Wrapper](https://github.com/cesanta/ssl_wrapper) - application to
+- Mongoose Lite: cross platform integration, SSL/TLS, HTTP support
-  secure network communications
+- Mongoose: Mongoose Lite + HTTP CGI, HTTP SSI, HTTP Digest Auth,
  WebSocket support
 - Mongoose Premium: Mongoose + Plain TCP, UDP, JSON-RPC, MQTT, DNS,
  CoAP support
 [Enquire about commercial licensing here](https://www.cesanta.com/contact)
 # Mongoose Binary
 This is our easy to use web server for web developers (PHP, Ruby, Python, etc)
 and web designers. Available in three editions to suit your needs: free, pro
 (USD 5) and dev edition (from USD 8). To install, simply download, double-click
 to start and run browser - that's all!
 [Download Mongoose Binary here](https://www.cesanta.com/mongoose)
 # Other products by Cesanta
 - [Smart.js](https://github.com/cesanta/smart.js) -
    Generic, hardware independent, full-stack IoT software platform
 - [V7](https://github.com/cesanta/v7) - Embedded JavaScript engine
 - [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
@@ -1,12 +0,0 @@
 LOCAL_PATH := $(call my-dir)/../..
 include $(CLEAR_VARS)
 # To build with lua support, uncomment two lines below:
 #LUA_SOURCES := build/lua_5.2.1.c build/sqlite3.c build/lsqlite3.c
 #LUA_FLAGS := -I$(LOCAL_PATH)/build -DTHREADSAFE=1 -DSQLITE_ENABLE_FTS3 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DUSE_LUA -DUSE_LUA_SQLITE3 -DLUA_COMPAT_ALL -D"getlocaledecpoint() ='.'"
 LOCAL_CFLAGS    := -std=c99 -O2 -W -Wall -pthread -pipe $(LUA_FLAGS) $(COPT)
 LOCAL_MODULE    := mongoose
 LOCAL_SRC_FILES := examples/server.c mongoose.c $(LUA_SOURCES)
 include $(BUILD_EXECUTABLE)
@@ -1,246 +0,0 @@
 # 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.
@@ -1,27 +0,0 @@
 # 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/examples`
  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.
@@ -1,34 +0,0 @@
 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)
@@ -1,171 +0,0 @@
 # 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 <string.h>
    #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 <net_skeleton.h>`, 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_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
@@ -1,45 +0,0 @@
 # 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.
@@ -1,18 +0,0 @@
 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)
@@ -1,44 +0,0 @@
 # 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.
@@ -1,51 +0,0 @@
 # 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
 `&lt;?  ?&gt;` 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:
    <? mg.write('HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n') ?>
    <html><body>
      <span>Today is:</span> <? mg.write(os.date("%A")) ?>
    </body></html>
 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:
    <? mg.write(io.open('MY_FILE.TXT'):read('*all')) ?>
 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.
@@ -1,154 +0,0 @@
 # 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.
@@ -1,49 +0,0 @@
 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)
@@ -1,193 +0,0 @@
 # 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_munpap()`
 - 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 buy 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)
@@ -1,75 +0,0 @@
 # 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.
@@ -1,86 +0,0 @@
 # 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
@@ -0,0 +1 @@
 *.exe
@@ -1,7 +1,7 @@
 # Copyright (c) 2014 Cesanta Software
 # All rights reserved
-SUBDIRS = $(sort $(filter-out csharp/, $(dir $(wildcard */))))
+SUBDIRS = $(sort $(dir $(wildcard */)))
 X = $(SUBDIRS)
 .PHONY: $(SUBDIRS)
@@ -12,4 +12,4 @@ $(SUBDIRS):
 	@$(MAKE) -C $@
 clean:
-	for d in $(SUBDIRS) ; do $(MAKE) -C $$d clean ; done
+	for d in $(SUBDIRS) ; do $(MAKE) -C $$d clean ; done
@@ -0,0 +1,25 @@
 PROG = api_server
 SOURCES = $(PROG).c sqlite3.c db_plugin_sqlite.c ../../mongoose.c
 CFLAGS = -W -Wall -pthread $(CFLAGS_EXTRA)
 ifeq ($(OS), Windows_NT)
 else
  UNAME_S := $(shell uname -s)
  ifeq ($(UNAME_S), Linux)
    CFLAGS += -ldl -lm
  endif
 endif
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I.. /MD /Fe$@
 test: $(PROG)
 	sh unit_test.sh $$(pwd)/$(PROG)
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,104 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #include "db_plugin.h"
 static const char *s_http_port = "8000";
 static struct mg_serve_http_opts s_http_server_opts;
 static int s_sig_num = 0;
 static void *s_db_handle = NULL;
 static const char *s_db_path = "api_server.db";
 static const struct mg_str s_get_method = MG_STR("GET");
 static const struct mg_str s_put_method = MG_STR("PUT");
 static const struct mg_str s_delele_method = MG_STR("DELETE");
 static void signal_handler(int sig_num) {
  signal(sig_num, signal_handler);
  s_sig_num = sig_num;
 }
 static int has_prefix(const struct mg_str *uri, const struct mg_str *prefix) {
  return uri->len > prefix->len && memcmp(uri->p, prefix->p, prefix->len) == 0;
 }
 static int is_equal(const struct mg_str *s1, const struct mg_str *s2) {
  return s1->len == s2->len && memcmp(s1->p, s2->p, s2->len) == 0;
 }
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  static const struct mg_str api_prefix = MG_STR("/api/v1");
  struct http_message *hm = (struct http_message *) ev_data;
  struct mg_str key;
  switch (ev) {
    case MG_EV_HTTP_REQUEST:
      if (has_prefix(&hm->uri, &api_prefix)) {
        key.p = hm->uri.p + api_prefix.len;
        key.len = hm->uri.len - api_prefix.len;
        if (is_equal(&hm->method, &s_get_method)) {
          db_op(nc, hm, &key, s_db_handle, API_OP_GET);
        } else if (is_equal(&hm->method, &s_put_method)) {
          db_op(nc, hm, &key, s_db_handle, API_OP_SET);
        } else if (is_equal(&hm->method, &s_delele_method)) {
          db_op(nc, hm, &key, s_db_handle, API_OP_DEL);
        } else {
          mg_printf(nc, "%s",
                    "HTTP/1.0 501 Not Implemented\r\n"
                    "Content-Length: 0\r\n\r\n");
        }
      } else {
        mg_serve_http(nc, hm, s_http_server_opts); /* Serve static content */
      }
      break;
    default:
      break;
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  int i;
  /* Open listening socket */
  mg_mgr_init(&mgr, NULL);
  nc = mg_bind(&mgr, s_http_port, ev_handler);
  mg_set_protocol_http_websocket(nc);
  s_http_server_opts.document_root = "web_root";
  /* Parse command line arguments */
  for (i = 1; i < argc; i++) {
    if (strcmp(argv[i], "-D") == 0) {
      mgr.hexdump_file = argv[++i];
    } else if (strcmp(argv[i], "-f") == 0) {
      s_db_path = argv[++i];
    } else if (strcmp(argv[i], "-r") == 0) {
      s_http_server_opts.document_root = argv[++i];
    }
  }
  signal(SIGINT, signal_handler);
  signal(SIGTERM, signal_handler);
  /* Open database */
  if ((s_db_handle = db_open(s_db_path)) == NULL) {
    fprintf(stderr, "Cannot open DB [%s]\n", s_db_path);
    exit(EXIT_FAILURE);
  }
  /* Run event loop until signal is received */
  printf("Starting RESTful server on port %s\n", s_http_port);
  while (s_sig_num == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  /* Cleanup */
  mg_mgr_free(&mgr);
  db_close(&s_db_handle);
  printf("Exiting on signal %d\n", s_sig_num);
  return 0;
 }
@@ -0,0 +1,19 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #ifndef DB_PLUGIN_HEADER_DEFINED
 #define DB_PLUGIN_HEADER_DEFINED
 #include "../../mongoose.h"
 void *db_open(const char *db_path);
 void db_close(void **db_handle);
 enum { API_OP_GET, API_OP_SET, API_OP_DEL };
 void db_op(struct mg_connection *nc, const struct http_message *hm,
           const struct mg_str *key, void *db, int op);
 #endif /* DB_PLUGIN_HEADER_DEFINED */
@@ -0,0 +1,107 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #include "db_plugin.h"
 #include "sqlite3.h"
 void *db_open(const char *db_path) {
  sqlite3 *db = NULL;
  if (sqlite3_open_v2(db_path, &db, SQLITE_OPEN_READWRITE |
      SQLITE_OPEN_CREATE | SQLITE_OPEN_FULLMUTEX, NULL) == SQLITE_OK) {
    sqlite3_exec(db, "CREATE TABLE IF NOT EXISTS kv(key PRIMARY KEY, val);",
                 0, 0, 0);
  }
  return db;
 }
 void db_close(void **db_handle) {
  if (db_handle != NULL && *db_handle != NULL) {
    sqlite3_close(*db_handle);
    *db_handle = NULL;
  }
 }
 static void op_set(struct mg_connection *nc, const struct http_message *hm,
                   const struct mg_str *key, void *db) {
  sqlite3_stmt *stmt = NULL;
  char value[200];
  const struct mg_str *body = hm->query_string.len > 0 ?
    &hm->query_string : &hm->body;
  mg_get_http_var(body, "value", value, sizeof(value));
  if (sqlite3_prepare_v2(db, "INSERT OR REPLACE INTO kv VALUES (?, ?);",
      -1, &stmt, NULL) == SQLITE_OK) {
    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
    sqlite3_bind_text(stmt, 2, value, strlen(value), SQLITE_STATIC);
    sqlite3_step(stmt);
    sqlite3_finalize(stmt);
  }
  mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
 }
 static void op_get(struct mg_connection *nc, const struct http_message *hm,
                   const struct mg_str *key, void *db) {
  sqlite3_stmt *stmt = NULL;
  const char *data = NULL;
  int result;
  (void) hm;
  if (sqlite3_prepare_v2(db, "SELECT val FROM kv WHERE key = ?;",
      -1, &stmt, NULL) == SQLITE_OK) {
    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
    result = sqlite3_step(stmt);
    data = (char *) sqlite3_column_text(stmt, 0);
    if ((result == SQLITE_OK || result == SQLITE_ROW) && data != NULL) {
      mg_printf(nc, "HTTP/1.1 200 OK\r\n"
                "Content-Type: text/plain\r\n"
                "Content-Length: %d\r\n\r\n%s",
                (int) strlen(data), data);
    } else {
      mg_printf(nc, "%s", "HTTP/1.1 404 Not Found\r\n"
                "Content-Length: 0\r\n\r\n");
    }
    sqlite3_finalize(stmt);
  } else {
    mg_printf(nc, "%s", "HTTP/1.1 500 Server Error\r\n"
              "Content-Length: 0\r\n\r\n");
  }
 }
 static void op_del(struct mg_connection *nc, const struct http_message *hm,
                   const struct mg_str *key, void *db) {
  sqlite3_stmt *stmt = NULL;
  int result;
  (void) hm;
  if (sqlite3_prepare_v2(db, "DELETE FROM kv WHERE key = ?;",
      -1, &stmt, NULL) == SQLITE_OK) {
    sqlite3_bind_text(stmt, 1, key->p, key->len, SQLITE_STATIC);
    result = sqlite3_step(stmt);
    if (result == SQLITE_OK || result == SQLITE_ROW) {
      mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nContent-Length: 0\r\n\r\n");
    } else {
      mg_printf(nc, "%s", "HTTP/1.1 404 Not Found\r\n"
                "Content-Length: 0\r\n\r\n");
    }
    sqlite3_finalize(stmt);
  } else {
    mg_printf(nc, "%s", "HTTP/1.1 500 Server Error\r\n"
              "Content-Length: 0\r\n\r\n");
  }
 }
 void db_op(struct mg_connection *nc, const struct http_message *hm,
           const struct mg_str *key, void *db, int op) {
  switch (op) {
    case API_OP_GET: op_get(nc, hm, key, db); break;
    case API_OP_SET: op_set(nc, hm, key, db); break;
    case API_OP_DEL: op_del(nc, hm, key, db); break;
    default:
      mg_printf(nc, "%s", "HTTP/1.0 501 Not Implemented\r\n"
                "Content-Length: 0\r\n\r\n");
      break;
  }
 }
@@ -0,0 +1,35 @@
 #!/bin/sh
 PROG=$1
 PORT=${2:-8000}  # If second param is given, this is load balancer port
 DB_FILE=/tmp/_$$.db
 URL=http://127.0.0.1:$PORT/api/v1
 cleanup() {
  rm -rf $DB_FILE
  kill -9 $PID >/dev/null 2>&1
 }
 #set -x
 trap cleanup EXIT
 cleanup
 $PROG -f $DB_FILE &
 PID=$!
 #sleep 1
 curl -s -X PUT -d 'value=123' $URL/foo
 curl -s -X PUT -d 'value=success' $URL/bar/baz
 # Fetch existing key
 RESULT=$(curl -s $URL/bar/baz)
 test "$RESULT" = "success" || exit 1
 # Delete it
 curl -s -X DELETE $URL/bar/baz
 # Make sure it's deleted - GET must result in 404
 RESULT=$(curl -s -i $URL/bar/baz | head -1 | tr -d '\r')
 test "$RESULT" = "HTTP/1.1 404 Not Found" || exit 1
 exit 0
@@ -2,32 +2,37 @@
 <html lang="en">
 <head>
  <meta charset="utf-8" />
-  <title>WebSocket Test</title>
+  <title>RESTful API demo</title>
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <style type="text/css">
    body {
      background-color: #cde; margin: 0;
      padding: 0; font: 14px Helvetica, Arial, sans-serif;
    }
    * { outline: none; }
    body {
      background-color: #789; margin: 0;
      padding: 0; font: 16px/1.4 Helvetica, Arial, sans-serif;
      font: 16px/1.4 Helvetica, Arial, sans-serif;
    }
    div.content {
      width: 800px; margin: 2em auto; padding: 20px 50px;
      background-color: #fff; border-radius: 1em;
    }
    label { display: inline-block; min-width: 7em; }
-    input { border: 1px solid #ccc; padding: 0.4em; margin: 0 0 10px 0; }
+    input { border: 1px solid #ccc; padding: 0.2em; }
    a:link, a:visited { color: #69c; text-decoration: none; }
    @media (max-width: 700px) {
      body { background-color: #fff; }
-      div.content {
+      div.content { width: auto; margin: 0 auto; padding: 1em; }
        width: auto; margin: 0 auto; border-radius: 0; padding: 1em;
      }
    }
 </style>
 <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
 <script language="javascript" type="text/javascript">
  jQuery(function() {
  });
 </script>
 </head>
 <body>
  <div class="content">
-    <h1>Mongoose Cookie Base Authentication</h1>
+    <h1>API server</h1>
-    <p>This is an index page. Authentication succeeded.</p>
+  </div>
 </body>
-</html>
+</html>
@@ -0,0 +1,2 @@
 # This "makefile" is only intended to prevent errors during main makefile execution
 all:
@@ -0,0 +1,46 @@
 # Arduino Restful Client
 This example demonstrates how to use [Mongoose](https://www.cesanta.com/mongoose) to send HTTP commands from Arduino.
 Example sends free memory size and current board uptime, but it can be modified to send any user-specific data.
 At the moment this example supports [Arduino Mega 2560](http://arduino.cc/en/Main/ArduinoBoardMega2560) board (and compatible) with either W5100-based
 network shield (like [Arduino Ethernet Shield](http://arduino.cc/en/Main/ArduinoEthernetShield)) or [CC3000](http://www.ti.com/product/cc3000)-based WIFI Shield.
 ## Build and run instructions:
 ###To run with Arduino Ethernet (W5100) shield:
 1. Add (Sketch->Add file...) the following files to sketch:
     - /mongoose/mongoose.h
     - /mongoose/mongoose.c
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 3. Buils and start (in console) /Users/alex/Projects/mongoose/examples/restful_server example
 4. Make `board_ip` and `board_mac` variables suitable for your network and board
 5. Change IP address in `s_target_address` variable to IP address of host running restful_server
 6. Uncomment line `#include <Ethernet.h>`
 7. Compile and flash sketch
 8. restful_server will start to show current uptime and free memory size (with 5 seconds interval)
 ###To run with Adafruit WiFi (CC3000) shield:
 1. Add (Sketch->Add files...) the following files to sketch:
     - /mongoose/mongoose.h
     - /mongoose/mongoose.c
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 2. Import Adafruit CC3000 library for mongoose
    (select Sketch->Import Library...->Add library... and point
     /mongoose/platforms/arduino_wifi_CC3000/adafruit_CC3000_lib_mongoose folder)
 3. Buils and start (in console) /Users/alex/Projects/mongoose/examples/restful_server example
 4. Make the following variables suitable for your network
     - `board_ip`
     - `subnet_mask`
     - `gateway`
     - `dns`
     - `wlan_ssid`
     - `wlan_pwd`
     - `wlan_security`
 5. Change IP address in `s_target_address` variable to IP address of host running restful_server
 6. Uncomment line `#include <Adafruit_CC3000.h>`
 8. Compile and flash sketch
 9. restful_server will start to show current uptime and free memory size (with 5 seconds interval)
@@ -0,0 +1,141 @@
 /*
 * Copyright (c) 2015 Cesanta Software Limited
 * All rights reserved
 * 
 * Build and run instructions:
 * To run with Arduino Ethernet (W5100) shield:
 * -----------------------------------------------------------
 *  1. Add (Sketch->Add file...) the following files to sketch:
 *     - /mongoose/mongoose.h
 *     - /mongoose/mongoose.c
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 *  2. Buils and run in console /Users/alex/Projects/mongoose/examples/restful_server example
 *  3. Make board_ip and board_mac variables suitable for your network and board
 *  4. Uncomment line #include <Ethernet.h>
 *  5. Change IP address in s_target_address variable to IP address of host running restful_server
 *  6. Compile & flash sketch
 *  7. restful_server server will start to show current uptime and free memory size (with 5 second interval) 
 *
 * To run with Adafruit WiFi (CC3000) shield:
 * -----------------------------------------------------------
 *  1. Add (Sketch->Add files...) the following files to sketch:
 *     - /mongoose/mongoose.h
 *     - /mongoose/mongoose.c
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 *  2. Import Adafruit CC3000 library for mongoose (select Sketch->Import Library...->Add library... and point 
 *     /mongoose/platforms/arduino_wifi_CC3000/adafruit_CC3000_lib_mongoose folder
 *  3. Buils and run in console /Users/alex/Projects/mongoose/examples/restful_server example
 *  4. Make the following variables suitable for your network
 *     - board_ip
 *     - subnet_mask
 *     - gateway
 *     - dns 
 *     - wlan_ssid
 *     - wlan_pwd
 *     - wlan_security
 *  5. Uncomment line #include <Adafruit_CC3000.h>
 *  6. Compile & flash sketch
 *  7. restful_server server will start to show current uptime and free memory size (with 5 second interval) *
 *
 */
 //#include <Ethernet.h>
 //#include <Adafruit_CC3000.h>
 #include <SPI.h>
 #include "mongoose.h"
 // CHANGE THESE VARIABLES
 // NB: Devices with the same address must not end up on the same network.
 // Use MAC address provided by device manufacturer (e.g. on a sticker).
 // If there isn't one, use a random one from the locally administered range.
 // See http://en.wikipedia.org/wiki/MAC_address for details.
 static uint8_t board_mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
 };
 static uint8_t board_ip[] = {192, 168, 10, 177};
 #ifdef WIFI_CC3000
 static uint8_t subnet_mask[] = {255, 255, 255, 0};
 static uint8_t gateway[] = {192, 168, 10, 254};
 static uint8_t dmg_ip[] = {192, 168, 10, 254};
 static const char *wlan_ssid = "mynetwork";     
 static const char *wlan_pwd = "mypassword";
 static int wlan_security = WLAN_SEC_WPA2;
 #endif
 static const char *s_target_address = "192.168.10.3:8000";
 /////////////////////////////////////////////
 static const char *s_request = "/printcontent";
 static uint32_t IP2U32(uint8_t* iparr) {
  return ((uint32_t)iparr[0] << 24) | ((uint32_t)iparr[1] << 16) | (iparr[2] << 8) | (iparr[3]);
 }
 static int get_data_to_send(char* buf, int buf_size) {
  // Adding data to send
  // It could be any sensor data, now just put uptime & free memory size here
  return snprintf(buf, buf_size, "Uptime: %lus Free memory: %db",
                  millis()/1000, get_freememsize());
 }
 static void rfc_ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  int connect_status;
  switch (ev) {
    case NS_CONNECT:
      connect_status = * (int *) ev_data;
      if (connect_status == 0) {
        char buf[100];
        int len = get_data_to_send(buf, sizeof(buf));
        mg_printf(nc, "POST %s HTTP/1.0\r\nHost: %s\r\nContent-Lenght: %d"
                  "\r\n\r\n%s", s_request, s_target_address, len, buf);
        nc->flags |= MG_F_SEND_AND_CLOSE;
      } else {
        nc->flags |= MG_F_CLOSE_IMMEDIATELY;
      }
      break;
    default:
      break;
  }
 }
 static struct mg_mgr mgr;
 static struct mg_connection *nc;
 void setup()
 {
  Serial.begin(9600);
  Serial.println("Initialization...");
 #if defined(ETHERNET_W5100)
  avr_netinit(board_mac, board_ip);
 #elif defined(WIFI_CC3000)
  if (avr_netinit(wlan_ssid, wlan_pwd, wlan_security, IP2U32(board_ip), 
              IP2U32(subnet_mask), IP2U32(gateway), IP2U32(dmg_ip)) != 0) {
    Serial.println("Initialization error, check network settings");
    return;
  };
 #endif
  mg_mgr_init(&mgr, NULL);
  Serial.println("Initialization done");  
 }
 void loop() {
  nc = mg_connect(&mgr, s_target_address, rfc_ev_handler);
  if (nc != NULL) {
    mg_set_protocol_http_websocket(nc);
  }
  uint32_t time_to_finish = millis() + 5000;
  while (millis() < time_to_finish) {
    mg_mgr_poll(&mgr, 1000);  
  }
 }
@@ -0,0 +1,2 @@
 # This "makefile" is only intended to prevent errors during main makefile execution
 all:
@@ -0,0 +1,45 @@
 # Arduino Restful Server
 This example demonstrates how to use [Mongoose](https://www.cesanta.com/mongoose) to control Arduino
 using HTTP requests.
 Example just blinks by LED when Mongoose receives HTTP command, but it can be modified to execute any user-specific code.
 At the moment this example supports [Arduino Mega 2560](http://arduino.cc/en/Main/ArduinoBoardMega2560) board (and compatible) with either W5100-based
 network shield (like [Arduino Ethernet Shield](http://arduino.cc/en/Main/ArduinoEthernetShield)) or [CC3000](http://www.ti.com/product/cc3000)-based WIFI Shield.
 ## Build and run instructions:
 ###To run with Arduino Ethernet (W5100) shield:
 1. Add (Sketch->Add file...) the following files to sketch:
     - /mongoose/mongoose.h
     - /mongoose/mongoose.c
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 2. Make `board_ip` and `board_mac` variables suitable for your network and board
 3. Uncomment line `#include <Ethernet.h>`
 4. Compile and flash sketch
 5. Run `curl http://<board_ip/blink`
   LED attached to PIN 13 will blink and board free memory size and board uptime will be displayed.
 ###To run with Adafruit WiFi (CC3000) shield:
 1. Add (Sketch->Add files...) the following files to sketch:
     - /mongoose/mongoose.h
     - /mongoose/mongoose.c
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 2. Import Adafruit CC3000 library for mongoose
    (select Sketch->Import Library...->Add library... and point
     /mongoose/platforms/arduino_wifi_CC3000/adafruit_CC3000_lib_mongoose folder)
 3. Make the following variables suitable for your network
     - `board_ip`
     - `subnet_mask`
     - `gateway`
     - `dns`
     - `wlan_ssid`
     - `wlan_pwd`
     - `wlan_security`
 5. Uncomment line `#include <Adafruit_CC3000.h>`
 4. Compile and flash sketch
 5. Run curl `http://<board_ip/blink`
   LED attached to PIN 13 will blink and board free memory size and board uptime will be displayed.
@@ -0,0 +1,133 @@
 /*
 * Copyright (c) 2015 Cesanta Software Limited
 * All rights reserved
 * 
 * Build and run instructions:
 * To run with Arduino Ethernet (W5100) shield:
 * -----------------------------------------------------------
 *  1. Add (Sketch->Add file...) the following files to sketch:
 *     - /mongoose/mongoose.h
 *     - /mongoose/mongoose.c
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 *  2. Make board_ip and board_mac variables suitable for your network and board
 *  3. Uncomment line #include <Ethernet.h>
 *  4. Compile & flash sketch
 *  5. Run curl http://<board_ip/blink
 *     LED attached to PIN 13 will blink and board free memory size and uptime will responsed
 *
 * To run with Adafruit WiFi (CC3000) shield:
 * -----------------------------------------------------------
 *  1. Add (Sketch->Add files...) the following files to sketch:
 *     - /mongoose/mongoose.h
 *     - /mongoose/mongoose.c
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.h
 *     - /mongoose/platforms/arduino_ethernet_W5100/avrsupport.cpp
 *  2. Import Adafruit CC3000 library for mongoose (select Sketch->Import Library...->Add library... and point 
 *     /mongoose/platforms/arduino_wifi_CC3000/adafruit_CC3000_lib_mongoose folder
 *  3. Make the following variables suitable for your network
 *     - board_ip
 *     - subnet_mask
 *     - gateway
 *     - dns 
 *     - wlan_ssid
 *     - wlan_pwd
 *     - wlan_security
 *  5. Uncomment line #include <Adafruit_CC3000.h>
 *  4. Compile & flash sketch
 *  5. Run curl http://<board_ip/blink
 *     LED attached to PIN 13 will blink and board free memory size and uptime will responsed
 *
 */
 //#include <Ethernet.h>
 //#include <Adafruit_CC3000.h>
 #include <SPI.h>
 #include "mongoose.h"
 // CHANGE THESE VARIABLES
 // NB: Devices with the same address must not end up on the same network.
 // Use MAC address provided by device manufacturer (e.g. on a sticker).
 // If there isn't one, use a random one from the locally administered range.
 // See http://en.wikipedia.org/wiki/MAC_address for details.
 static uint8_t board_mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
 };
 static uint8_t board_ip[] = {192, 168, 10, 8};
 #ifdef WIFI_CC3000
 static uint8_t subnet_mask[] = {255, 255, 255, 0};
 static uint8_t gateway[] = {192, 168, 10, 254};
 static uint8_t dmg_ip[] = {192, 168, 10, 254};
 static const char *wlan_ssid = "mynetwork";     
 static const char *wlan_pwd = "mypassword";
 static int wlan_security = WLAN_SEC_WPA2;
 #endif
 ///////////////////////////////////////////////
 static const char *s_http_port = "60000";
 static uint32_t IP2U32(uint8_t* iparr) {
  return ((uint32_t)iparr[0] << 24) | ((uint32_t)iparr[1] << 16) | (iparr[2] << 8) | (iparr[3]);
 }
 static void rfs_ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct http_message *hm = (struct http_message *) ev_data;
  char buf[100];
  int clen;
  switch (ev) {
    case NS_HTTP_REQUEST:      
      if (mg_vcmp(&hm->uri, "/blink") == 0) {
        blink(1, 500);
      }
      clen = snprintf(buf, sizeof(buf),
                      "Free memory size: %d Uptime: %d",
                      (int)get_freememsize(), (int)time(NULL));
      mg_printf_http_chunk(nc, "HTTP/1.1 200 OK\r\n"
                               "Content-Length: %d\r\n"
                               "Transfer-Encoding: chunked\r\n\r\n"
                               "%s",
                               clen, buf);
      mg_send_http_chunk(nc, "", 0);
      break;
    case NS_SEND:
      nc->flags |= MG_F_CLOSE_IMMEDIATELY;
      break;
    default:
      break;
  }
 }
 static struct mg_connection *nc;
 static struct mg_mgr mgr;
 void setup() {
  Serial.begin(9600);
  Serial.println("Initialization...");
 #if defined(ETHERNET_W5100)
  avr_netinit(board_mac, board_ip);
 #elif defined(WIFI_CC3000)
  if (avr_netinit(wlan_ssid, wlan_pwd, wlan_security, IP2U32(board_ip), 
              IP2U32(subnet_mask), IP2U32(gateway), IP2U32(dmg_ip)) != 0) {
    Serial.println("Initialization error, check network settings");
    return;
  };
 #endif
  mg_mgr_init(&mgr, NULL);
  nc = mg_bind(&mgr, s_http_port, rfs_ev_handler);
  mg_set_protocol_http_websocket(nc);
  Serial.println("Initialization done");
 }
 void loop() {
  mg_mgr_poll(&mgr, 1000);
 }
@@ -1,12 +0,0 @@
 # 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
@@ -1,84 +0,0 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #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",
                   "<html><body>Upload example."
                   "<form method=\"POST\" action=\"/upload\" "
                   "  enctype=\"multipart/form-data\">"
                   "<input type=\"file\" name=\"file\" /> <br/>"
                   "<input type=\"submit\" value=\"Upload\" />"
                   "</form></body></html>");
    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;
 }
@@ -0,0 +1,4 @@
 PROG = captive_dns_server
 MODULE_CFLAGS=-DMG_ENABLE_DNS_SERVER
 include ../rules.mk
@@ -0,0 +1,82 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 /*
 * Try it out with:
 * $ dig -t A www.google.com -4 @localhost -p 5533
 */
 #include "../../mongoose.h"
 #include <stdio.h>
 static int s_exit_flag = 0;
 static in_addr_t s_our_ip_addr;
 static const char *s_listening_addr = "udp://:5533";
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct mg_dmg_message *msg;
  struct mg_dmg_resource_record *rr;
  struct mg_dmg_reply reply;
  int i;
  switch (ev) {
    case MG_DNS_MESSAGE:
      msg = (struct mg_dmg_message *) ev_data;
      reply = mg_dmg_create_reply(&nc->send_mbuf, msg);
      for (i = 0; i < msg->num_questions; i++) {
        rr = &msg->questions[i];
        if (rr->rtype == MG_DNS_A_RECORD) {
          mg_dmg_reply_record(&reply, rr, NULL, rr->rtype, 3600,
                              &s_our_ip_addr, 4);
        }
      }
      /*
       * We don't set the error flag even if there were no answers
       * maching the MG_DNS_A_RECORD query type.
       * This indicates that we have (syntetic) answers for MG_DNS_A_RECORD.
       * See http://goo.gl/QWvufr for a distinction between NXDOMAIN and NODATA.
       */
      mg_dmg_send_reply(nc, &reply);
      break;
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  int i;
  mg_mgr_init(&mgr, NULL);
  s_our_ip_addr = inet_addr("127.0.0.1");
  /* Parse command line arguments */
  for (i = 1; i < argc; i++) {
    if (strcmp(argv[i], "-D") == 0) {
      mgr.hexdump_file = argv[++i];
    } else if (strcmp(argv[i], "-l") == 0 && i + 1 < argc) {
      s_listening_addr = argv[++i];
    } else {
      s_our_ip_addr = inet_addr(argv[i]);
    }
  }
  fprintf(stderr, "Listening on '%s'\n", s_listening_addr);
  if ((nc = mg_bind(&mgr, s_listening_addr, ev_handler)) == NULL) {
    fprintf(stderr, "cannot bind to socket\n");
    exit(1);
  }
  mg_set_protocol_dns(nc);
  while (s_exit_flag == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,14 @@
 PROG = coap_client
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. $(CFLAGS_EXTRA) -DMG_ENABLE_COAP
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,72 @@
 /*
 * Copyright (c) 2015 Cesanta Software Limited
 * All rights reserved
 *
 * This program sends CoAP CON-message to server (coap.me by default) 
 * and waits for answer.
 */
 #include "mongoose.h"
 static int s_time_to_exit = 0;
 static char* s_default_address = "udp://coap.me:5683";
 static void coap_handler(struct mg_connection *nc, int ev, void *p) {
  switch (ev) {
    case MG_EV_CONNECT: {
      struct mg_coap_message cm;
      uint32_t res;
      memset(&cm, 0, sizeof(cm));
      cm.msg_id = 1;
      cm.msg_type = MG_COAP_MSG_CON;
      printf("Sending CON...\n");
      res = mg_coap_send_message(nc, &cm);
      if (res == 0) {
        printf("Sent CON with msg_id = %d\n", cm.msg_id);
      } else {
        printf("Error: %d\n", res);
        s_time_to_exit = 1;
      }
      break;
    }
    case MG_EV_COAP_ACK:
    case MG_EV_COAP_RST:  {
      struct mg_coap_message *cm = (struct mg_coap_message *)p;
      printf("ACK/RST for message with msg_id = %d received\n",
             cm->msg_id);
      s_time_to_exit = 1;
      break;
    }
  }
 }
 int main(int argc, char* argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  char *address = s_default_address;
  if (argc > 1) {
    address = argv[1];
  }
  printf("Using %s as CoAP server\n", address); 
  mg_mgr_init(&mgr, 0);
  nc = mg_connect(&mgr, address, coap_handler);
  if (nc == NULL) {
    printf("Unable to connect to %s\n", address);
    return -1;
  }
  mg_set_protocol_coap(nc);
  while (!s_time_to_exit) {
    mg_mgr_poll(&mgr, 1);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,14 @@
 PROG = coap_server
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. $(CFLAGS_EXTRA) -DMG_ENABLE_COAP
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,73 @@
 /*
 * Copyright (c) 2015 Cesanta Software Limited
 * All rights reserved
 *
 * This program listens on 5683 for CoAP messages, 
 * sends ACK is nessesary and dump everything received.
 * It is possible to use ../coap_client to send message.
 */
 #include "mongoose.h"
 static char* s_default_address = "udp://:5683";
 static int s_sig_received = 0;
 static void signal_handler(int sig_num) {
  signal(sig_num, signal_handler); 
  s_sig_received = sig_num;
 }
 static void coap_handler(struct mg_connection *nc, int ev, void *p) {
  switch (ev) {
    case MG_EV_COAP_CON: {
      uint32_t res;
      struct mg_coap_message *cm = (struct mg_coap_message *)p;
      printf("CON with msg_id = %d received\n", cm->msg_id);
      res = mg_coap_send_ack(nc, cm->msg_id);
      if (res == 0) {
        printf("Successfully sent ACK for message with msg_id = %d\n",
               cm->msg_id);
      } else {
        printf("Error: %d\n", res);
      }
      break;
    }
    case MG_EV_COAP_NOC:
    case MG_EV_COAP_ACK:
    case MG_EV_COAP_RST:  {
      struct mg_coap_message *cm = (struct mg_coap_message *)p;
      printf("ACK/RST/NOC with msg_id = %d received\n",
             cm->msg_id);
      break;
    }
  }
 }
 int main() {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  signal(SIGTERM, signal_handler);
  signal(SIGINT, signal_handler);
  mg_mgr_init(&mgr, 0);
  nc = mg_bind(&mgr, s_default_address, coap_handler);
  if (nc == NULL) {
    printf("Unable to start listener at %s\n", s_default_address);
    return -1;
  }
  printf("Listening for CoAP messages at %s\n", s_default_address); 
  mg_set_protocol_coap(nc);
  while (!s_sig_received) {
    mg_mgr_poll(&mgr, 1);
  }
  printf("Exiting on signal %d\n", s_sig_received);
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -1,12 +0,0 @@
 # 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
@@ -1,96 +0,0 @@
 // Copyright (c) 2014 Cesanta Software
 // All rights reserved
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
 #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;
 }
@@ -1,44 +0,0 @@
 <!DOCTYPE html>
 <html lang="en">
 <head>
  <meta charset="utf-8" />
  <title>WebSocket Test</title>
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <style type="text/css">
    body {
      background-color: #cde; margin: 0;
      padding: 0; font: 14px Helvetica, Arial, sans-serif;
    }
    * { outline: none; }
    div.content {
      width: 800px; margin: 2em auto; padding: 20px 50px;
      background-color: #fff; border-radius: 1em;
    }
    label { display: inline-block; min-width: 7em; }
    input { border: 1px solid #ccc; padding: 0.4em; margin: 0 0 10px 0; }
    a:link, a:visited { color: #69c; text-decoration: none; }
    @media (max-width: 700px) {
      body { background-color: #fff; }
      div.content {
        width: auto; margin: 0 auto; border-radius: 0; padding: 1em;
      }
    }
 </style>
 <body>
  <div class="content">
    <h1>Mongoose Cookie Based Authentication</h1>
    <p>Use name "Joe", password "Doe" to login.</p>
    <form method="POST">
      <div>
        <label>Name:</label>
        <input type="text" name="name"/>
      </div><div>
        <label>Password:</label>
        <input type="password" name="password"/>
      </div><div>
        <input type="submit" value="Login"/>
      </div>
    </form>
 </body>
 </html>
@@ -1,43 +0,0 @@
 // 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);
 		}
  }
 }
@@ -1,68 +0,0 @@
 // 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()
 }
@@ -1,12 +0,0 @@
 # 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
@@ -1,36 +0,0 @@
 #include <stdio.h>
 #include <string.h>
 #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;
 }
@@ -1,20 +0,0 @@
 # 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*
@@ -1,59 +0,0 @@
 // Copyright (c) 2004-2012 Sergey Lyubka
 // This file is a part of mongoose project, http://github.com/valenok/mongoose
 #include <stdio.h>
 #include <string.h>
 #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",
                 "<html><body>Upload example."
                 "<form method=\"POST\" action=\"/handle_post_request\" "
                 "  enctype=\"multipart/form-data\">"
                 "<input type=\"file\" name=\"file\" /> <br/>"
                 "<input type=\"submit\" value=\"Upload\" />"
                 "</form>");
  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<br>",
                   var_name, file_name, data_len);
  }
  mg_printf_data(conn, "%s", "</body></html>");
  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;
 }
@@ -1,12 +0,0 @@
 # 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
@@ -1,62 +0,0 @@
 #include <stdio.h>
 #include <string.h>
 #include "mongoose.h"
 static const char *html_form =
  "<html><body>POST example."
  "<form method=\"POST\" action=\"/handle_post_request\">"
  "Input 1: <input type=\"text\" name=\"input_1\" /> <br/>"
  "Input 2: <input type=\"text\" name=\"input_2\" /> <br/>"
  "<input type=\"submit\" />"
  "</form></body></html>";
 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;
 }
@@ -1,21 +0,0 @@
 # 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*
@@ -1,38 +0,0 @@
 // 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 <stdio.h>
 #include <string.h>
 #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;
 }
@@ -1,12 +1,14 @@
 # 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
 CFLAGS = -W -Wall -I../.. -DMG_ENABLE_SSL -lssl -lcrypto -pthread $(CFLAGS_EXTRA)
-unix: $(SOURCES)
+all: $(PROG)
-	$(CC) -o $(PROG) $(SOURCES) $(CFLAGS)
+
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
-	rm -rf $(PROG) *.exe *.dSYM *.obj *.exp .*o *.lib
+	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -1,82 +1,70 @@
-// Copyright (c) 2014 Cesanta Software
+/*
-// All rights reserved
+ * Copyright (c) 2014 Cesanta Software Limited
-//
+ * All rights reserved
-// This example demostrates how to connect to the remote Web server,
+ *
-// download data, process it and send back a reply.
+ * This program fetches HTTP URLs.
-
+ */
 #include <signal.h>
 #include <stdlib.h>
 #include "mongoose.h"
-static int s_received_signal = 0;
+static int s_exit_flag = 0;
-static struct mg_server *s_server = NULL;
+static int s_show_headers = 0;
-static const char *s_remote_addr = "glosbe.com:80";
+static const char *s_show_headers_opt = "--show-headers";
-static void signal_handler(int sig_num) {
+static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
-  signal(sig_num, signal_handler);
+  struct http_message *hm = (struct http_message *) ev_data;
  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:
+    case MG_EV_CONNECT:
-      return MG_TRUE;
+      if (* (int *) ev_data != 0) {
-
+        fprintf(stderr, "connect() failed: %s\n", strerror(* (int *) ev_data));
-    case MG_CONNECT:
+        s_exit_flag = 1;
      // 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;
      }
-
+      break;
    case MG_EV_HTTP_REPLY:
      nc->flags |= MG_F_CLOSE_IMMEDIATELY;
      if (s_show_headers) {
        fwrite(hm->message.p, 1, hm->message.len, stdout);
      } else {
        fwrite(hm->body.p, 1, hm->body.len, stdout);
      }
      putchar('\n');
      s_exit_flag = 1;
      break;
    default:
-      return MG_FALSE;
+      break;
  }
 }
-int main(void) {
+int main(int argc, char *argv[]) {
-  s_server = mg_create_server(NULL, ev_handler);
+  struct mg_mgr mgr;
  int i;
-  mg_set_option(s_server, "listening_port", "8080");
+  mg_mgr_init(&mgr, NULL);
-  // Setup signal handlers
+  /* Process command line arguments */
-  signal(SIGTERM, signal_handler);
+  for (i = 1; i < argc; i++) {
-  signal(SIGINT, signal_handler);
+    if (strcmp(argv[i], s_show_headers_opt) == 0) {
-
+      s_show_headers = 1;
-  printf("Listening on port %s\n", mg_get_option(s_server, "listening_port"));
+    } else if (strcmp(argv[i], "--hexdump") == 0 && i + 1 < argc) {
-  while (s_received_signal == 0) {
+      mgr.hexdump_file = argv[++i];
-    mg_poll_server(s_server, 1000);
+    } else {
      break;
    }
  }
  mg_destroy_server(&s_server);
  printf("Existing on signal %d\n", s_received_signal);
-  return EXIT_SUCCESS;
+  if (i + 1 != argc) {
    fprintf(stderr, "Usage: %s [%s] [--hexdump <file>] <URL>\n",
            argv[0], s_show_headers_opt);
    exit(EXIT_FAILURE);
  }
  mg_connect_http(&mgr, ev_handler, argv[i], NULL, NULL);
  while (s_exit_flag == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,14 @@
 PROG = json_rpc_server
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -pthread $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,67 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 *
 * To test this server, do
 *   $ curl -d '{"id":1,method:"sum",params:[22,33]}' 127.0.0.1:8000
 */
 #include "mongoose.h"
 static const char *s_http_port = "8000";
 static int rpc_sum(char *buf, int len, struct mg_rpc_request *req) {
  double sum = 0;
  int i;
  if (req->params[0].type != JSON_TYPE_ARRAY) {
    return mg_rpc_create_std_error(buf, len, req,
                                   JSON_RPC_INVALID_PARAMS_ERROR);
  }
  for (i = 0; i < req->params[0].num_desc; i++) {
    if (req->params[i + 1].type != JSON_TYPE_NUMBER) {
      return mg_rpc_create_std_error(buf, len, req,
                                     JSON_RPC_INVALID_PARAMS_ERROR);
    }
    sum += strtod(req->params[i + 1].ptr, NULL);
  }
  return mg_rpc_create_reply(buf, len, req, "f", sum);
 }
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct http_message *hm = (struct http_message *) ev_data;
  static const char *methods[] = { "sum", NULL };
  static mg_rpc_handler_t handlers[] = { rpc_sum, NULL };
  char buf[100];
  switch (ev) {
    case MG_EV_HTTP_REQUEST:
      mg_rpc_dispatch(hm->body.p, hm->body.len, buf, sizeof(buf),
                      methods, handlers);
      mg_printf(nc, "HTTP/1.0 200 OK\r\nContent-Length: %d\r\n"
                "Content-Type: application/json\r\n\r\n%s",
                (int) strlen(buf), buf);
      nc->flags |= MG_F_SEND_AND_CLOSE;
      break;
    default:
      break;
  }
 }
 int main(void) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  mg_mgr_init(&mgr, NULL);
  nc = mg_bind(&mgr, s_http_port, ev_handler);
  mg_set_protocol_http_websocket(nc);
  printf("Starting JSON-RPC server on port %s\n", s_http_port);
  for (;;) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,10 @@
 FROM cesanta/mongoose
 COPY load_balancer.c /mongoose/
 WORKDIR /mongoose
 RUN mkdir /mongoose/certs; \
    sed -i 's:#include "../../mongoose.h":#include "mongoose.h":' load_balancer.c; \
    cc load_balancer.c mongoose.c -o load_balancer -W -Wall -pthread -DMG_ENABLE_SSL -lssl -lcrypto
 EXPOSE 8000
 VOLUME ["/mongoose/certs"]
 ENTRYPOINT ["/mongoose/load_balancer"]
@@ -0,0 +1,39 @@
 # To build with SSL under windows, do:
 # wine make load_balancer.exe SSL=openssl  # OpenSSL build
 # wine make load_balancer.exe SSL=krypton  # Krypton build
 PROG = load_balancer
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -pthread $(CFLAGS_EXTRA)
 ifeq ($(SSL), openssl)
  OPENSSL_PATH = ./openssl-0.9.8
  CFLAGS_EXTRA += -DMG_ENABLE_SSL -I$(OPENSSL_PATH)/include
 	CFLAGS_EXTRA += /link /libpath:$(OPENSSL_PATH)/lib ssleay32.lib libeay32.lib
 endif
 ifeq ($(SSL), krypton)
 	KRYPTON_PATH = ../../../krypton
  CFLAGS_EXTRA += -DMG_ENABLE_SSL $(KRYPTON_PATH)/krypton.c -I$(KRYPTON_PATH)
 endif
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I.. /MD /Fe$@ /DMG_ENABLE_THREADS advapi32.lib $(CFLAGS_EXTRA)
 test: $(PROG)
 	$(MAKE) -C ../api_server
 	sh unit_test.sh $$(pwd)/$(PROG)
 docker-build:
 	docker build -t cesanta/load_balancer .
 docker-push:
 	docker push cesanta/load_balancer
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,44 @@
 # Mongoose-based HTTP load balancer
 ## Configuration
 Load balancer is configured with command-line flags.
 ### Global flags
 * `-p port` – TCP port to listen on. Default: 8000.
 * `-l log_file` – path to the log file. Default: none.
 * `-s ssl_cert` – path to SSL certificate. Default: none.
 ### Backend configuration
 Main flag is `-b uri_prefix host_port` – it adds a new backend for a given
 URI prefix. Example: `-b /stuff/ 127.0.0.1:8080` will route all requests that
 start with '/stuff/' to a backend at port 8080 on localhost. There is a special
 syntax for `uri_prefix` that allows you to change the URIs that get passed to
 backends:
 * `-b /stuff/=/ 127.0.0.1:8080` – for '/stuff/thing' backend will see '/thing'.
 * `-b /stuff/=/other/ 127.0.0.1:8080` – '/stuff/thing' => '/other/thing'.
 Also there are few per-backend flags that can be placed before `-b` and apply
 only to the next backend:
 * `-r` – instead of proxying requests load balancer will reply with 302 
 redirect.
 * `-v vhost` – match not only URI prefix but 'Host:' header as well.
 ### Example
 ```
 load_balancer -s path/to/cert.pem \
  -v example.com -b /site/=/ 127.0.0.1:8080 \
  -b /static/ 127.0.0.1:8081 \
  -b /static/ 127.0.0.1:8082
 ``` 
 In this example requests to 'example.com/site/' will be forwarded to the
 backend on port 8080 with '/site' prefix stripped off and requests to
 '/static/' on any virtual host will be balanced in round-robin fashion between
 backends on ports 8081 and 8082.
@@ -0,0 +1,637 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #include "../../mongoose.h"
 #include <sys/queue.h>
 #define MAX_IDLE_CONNS 5
 #define CONN_IDLE_TIMEOUT 30
 struct http_backend;
 struct be_conn {
  struct http_backend *be;
  struct mg_connection *nc;
  time_t idle_deadline;
  STAILQ_ENTRY(be_conn) conns;
 };
 STAILQ_HEAD(be_conn_list_head, be_conn);
 struct http_backend {
  const char *vhost;      /* NULL if any host */
  const char *uri_prefix; /* URI prefix, e.g. "/api/v1/", "/static/" */
  const char *uri_prefix_replacement; /* if not NULL, will replace uri_prefix in
                                         requests to backends */
  const char *host_port;              /* Backend address */
  int redirect;                       /* if true redirect instead of proxy */
  int usage_counter; /* Number of times this backend was chosen */
  struct be_conn_list_head conns;
  int num_conns;
 };
 struct peer {
  struct mg_connection *nc;
  int64_t body_len;  /* Size of the HTTP body to forward */
  int64_t body_sent; /* Number of bytes already forwarded */
  struct {
    /* Headers have been sent, no more headers. */
    unsigned int headers_sent : 1;
    unsigned int keep_alive : 1;
  } flags;
 };
 struct conn_data {
  struct be_conn *be_conn; /* Chosen backend */
  struct peer client;      /* Client peer */
  struct peer backend;     /* Backend peer */
  time_t last_activity;
 };
 static const char *s_error_500 = "HTTP/1.1 500 Failed\r\n";
 static const char *s_content_len_0 = "Content-Length: 0\r\n";
 static const char *s_connection_close = "Connection: close\r\n";
 static const char *s_http_port = "8000";
 static struct http_backend s_vhost_backends[100], s_default_backends[100];
 static int s_num_vhost_backends = 0, s_num_default_backends = 0;
 static int s_sig_num = 0;
 static int s_backend_keepalive = 0;
 static FILE *s_log_file = NULL;
 #ifdef MG_ENABLE_SSL
 const char *s_ssl_cert = NULL;
 #endif
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data);
 static void write_log(const char *fmt, ...);
 static void signal_handler(int sig_num) {
  signal(sig_num, signal_handler);
  s_sig_num = sig_num;
 }
 static void send_http_err(struct mg_connection *nc, const char *err_line) {
  mg_printf(nc, "%s%s%s\r\n", err_line, s_content_len_0, s_connection_close);
 }
 static void respond_with_error(struct conn_data *conn, const char *err_line) {
  struct mg_connection *nc = conn->client.nc;
  int headers_sent = conn->client.flags.headers_sent;
 #ifdef DEBUG
  write_log("conn=%p nc=%p respond_with_error %d\n", conn, nc, headers_sent);
 #endif
  if (nc == NULL) return;
  if (!headers_sent) {
    send_http_err(nc, err_line);
    conn->client.flags.headers_sent = 1;
  }
  nc->flags |= MG_F_SEND_AND_CLOSE;
 }
 static int has_prefix(const struct mg_str *uri, const char *prefix) {
  size_t prefix_len = strlen(prefix);
  return uri->len >= prefix_len && memcmp(uri->p, prefix, prefix_len) == 0;
 }
 static int matches_vhost(const struct mg_str *host, const char *vhost) {
  size_t vhost_len;
  if (vhost == NULL) {
    return 1;
  }
  vhost_len = strlen(vhost);
  return host->len == vhost_len && memcmp(host->p, vhost, vhost_len) == 0;
 }
 static void write_log(const char *fmt, ...) {
  va_list ap;
  if (s_log_file != NULL) {
    va_start(ap, fmt);
    vfprintf(s_log_file, fmt, ap);
    fflush(s_log_file);
    va_end(ap);
  }
 }
 static struct http_backend *choose_backend_from_list(
    struct http_message *hm, struct http_backend *backends, int num_backends) {
  int i;
  struct mg_str vhost = {"", 0};
  const struct mg_str *host = mg_get_http_header(hm, "host");
  if (host != NULL) vhost = *host;
  const char *vhost_end = vhost.p;
  while (vhost_end < vhost.p + vhost.len && *vhost_end != ':') {
    vhost_end++;
  }
  vhost.len = vhost_end - vhost.p;
  struct http_backend *chosen = NULL;
  for (i = 0; i < num_backends; i++) {
    struct http_backend *be = &backends[i];
    if (has_prefix(&hm->uri, be->uri_prefix) &&
        matches_vhost(&vhost, be->vhost) &&
        (chosen == NULL ||
         /* Prefer most specific URI prefixes */
         strlen(be->uri_prefix) > strlen(chosen->uri_prefix) ||
         /* Among prefixes of the same length chose the least used. */
         (strlen(be->uri_prefix) == strlen(chosen->uri_prefix) &&
          be->usage_counter < chosen->usage_counter))) {
      chosen = be;
    }
  }
  return chosen;
 }
 static struct http_backend *choose_backend(struct http_message *hm) {
  struct http_backend *chosen =
      choose_backend_from_list(hm, s_vhost_backends, s_num_vhost_backends);
  /* Nothing was chosen for this vhost, look for vhost == NULL backends. */
  if (chosen == NULL) {
    chosen = choose_backend_from_list(hm, s_default_backends,
                                      s_num_default_backends);
  }
  if (chosen != NULL) chosen->usage_counter++;
  return chosen;
 }
 static void forward_body(struct peer *src, struct peer *dst) {
  struct mbuf *src_io = &src->nc->recv_mbuf;
  if (src->body_sent < src->body_len) {
    size_t to_send = src->body_len - src->body_sent;
    if (src_io->len < to_send) {
      to_send = src_io->len;
    }
    mg_send(dst->nc, src_io->buf, to_send);
    src->body_sent += to_send;
    mbuf_remove(src_io, to_send);
  }
 #ifdef DEBUG
  write_log("forward_body %p (ka=%d) -> %p sent %d of %d\n", src->nc,
            src->flags.keep_alive, dst->nc, src->body_sent, src->body_len);
 #endif
 }
 static void forward(struct conn_data *conn, struct http_message *hm,
                    struct peer *src_peer, struct peer *dst_peer) {
  struct mg_connection *src = src_peer->nc;
  struct mg_connection *dst = dst_peer->nc;
  struct mbuf *io = &src->recv_mbuf;
  int i;
  int is_request = (src_peer == &conn->client);
  src_peer->body_len = hm->body.len;
  struct http_backend *be = conn->be_conn->be;
  if (is_request) {
    /* Write rewritten request line. */
    size_t trim_len = strlen(be->uri_prefix);
    mg_printf(dst, "%.*s%s%.*s\r\n", (int) (hm->uri.p - io->buf), io->buf,
              be->uri_prefix_replacement,
              (int) (hm->proto.p + hm->proto.len - (hm->uri.p + trim_len)),
              hm->uri.p + trim_len);
  } else {
    /* Reply line goes without modification */
    mg_printf(dst, "%.*s %d %.*s\r\n", (int) hm->proto.len, hm->proto.p,
              (int) hm->resp_code, (int) hm->resp_status_msg.len,
              hm->resp_status_msg.p);
  }
  /* Headers. */
  for (i = 0; i < MG_MAX_HTTP_HEADERS && hm->header_names[i].len > 0; i++) {
    struct mg_str hn = hm->header_names[i];
    struct mg_str hv = hm->header_values[i];
 #ifdef MG_ENABLE_SSL
    /*
     * If we terminate SSL and backend redirects to local HTTP port,
     * strip protocol to let client use HTTPS.
     * TODO(lsm): web page content may also contain local HTTP references,
     * they need to be rewritten too.
     */
    if (mg_vcasecmp(&hn, "Location") == 0 && s_ssl_cert != NULL) {
      size_t hlen = strlen(be->host_port);
      const char *hp = be->host_port, *p = memchr(hp, ':', hlen);
      if (p == NULL) {
        p = hp + hlen;
      }
      if (mg_ncasecmp(hv.p, "http://", 7) == 0 &&
          mg_ncasecmp(hv.p + 7, hp, (p - hp)) == 0) {
        mg_printf(dst, "Location: %.*s\r\n", (int) (hv.len - (7 + (p - hp))),
                  hv.p + 7 + (p - hp));
        continue;
      }
    }
 #endif
    /* We always rewrite the connection header depending on the settings. */
    if (mg_vcasecmp(&hn, "Connection") == 0) continue;
    mg_printf(dst, "%.*s: %.*s\r\n", (int) hn.len, hn.p, (int) hv.len, hv.p);
  }
  /* Emit the connection header. */
  const char *connection_mode = "close";
  if (dst_peer == &conn->backend) {
    if (s_backend_keepalive) connection_mode = "keep-alive";
  } else {
    if (conn->client.flags.keep_alive) connection_mode = "keep-alive";
  }
  mg_printf(dst, "Connection: %s\r\n", connection_mode);
  mg_printf(dst, "%s", "\r\n");
  mbuf_remove(io, hm->body.p - hm->message.p); /* We've forwarded headers */
  dst_peer->flags.headers_sent = 1;
  forward_body(src_peer, dst_peer);
 }
 struct be_conn *get_conn(struct http_backend *be) {
  if (STAILQ_EMPTY(&be->conns)) return NULL;
  struct be_conn *result = STAILQ_FIRST(&be->conns);
  STAILQ_REMOVE_HEAD(&be->conns, conns);
  be->num_conns--;
  return result;
 }
 /*
 * choose_backend parses incoming HTTP request and routes it to the appropriate
 * backend. It assumes that clients don't do HTTP pipelining, handling only
 * one request request for each connection. To give a hint to backend about
 * this it inserts "Connection: close" header into each forwarded request.
 */
 static int connect_backend(struct conn_data *conn, struct http_message *hm) {
  struct mg_connection *nc = conn->client.nc;
  struct http_backend *be = choose_backend(hm);
  write_log("%.*s %.*s backend=%s\n", (int) hm->method.len, hm->method.p,
            (int) hm->uri.len, hm->uri.p, be->host_port);
  if (be == NULL) return 0;
  if (be->redirect != 0) {
    mg_printf(nc, "HTTP/1.1 302 Found\r\nLocation: %s\r\n\r\n", be->host_port);
    return 1;
  }
  struct be_conn *bec = get_conn(be);
  if (bec != NULL) {
    bec->nc->handler = ev_handler;
 #ifdef DEBUG
    write_log("conn=%p to %p (%s) reusing bec=%p\n", conn, be, be->host_port,
              bec);
 #endif
  } else {
    bec = malloc(sizeof(*conn->be_conn));
    memset(bec, 0, sizeof(*bec));
    bec->nc = mg_connect(nc->mgr, be->host_port, ev_handler);
 #ifdef DEBUG
    write_log("conn=%p new conn to %p (%s) bec=%p\n", conn, be, be->host_port,
              bec);
 #endif
    if (bec->nc == NULL) {
      free(bec);
      write_log("Connection to [%s] failed\n", be->host_port);
      return 0;
    }
  }
  bec->be = be;
  conn->be_conn = bec;
  conn->backend.nc = bec->nc;
  conn->backend.nc->user_data = conn;
  mg_set_protocol_http_websocket(conn->backend.nc);
  return 1;
 }
 static int is_keep_alive(struct http_message *hm) {
  const struct mg_str *connection_header = mg_get_http_header(hm, "Connection");
  if (connection_header == NULL) {
    /* HTTP/1.1 connections are keep-alive by default. */
    if (mg_vcasecmp(&hm->proto, "HTTP/1.1") != 0) return 0;
  } else if (mg_vcasecmp(connection_header, "keep-alive") != 0) {
    return 0;
  }
  // We must also have Content-Length.
  return mg_get_http_header(hm, "Content-Length") != NULL;
 }
 static void idle_backend_handler(struct mg_connection *nc, int ev,
                                 void *ev_data) {
  (void) ev_data; /* Unused. */
  struct be_conn *bec = nc->user_data;
  const time_t now = time(NULL);
 #ifdef DEBUG
  write_log("%d idle bec=%p nc=%p ev=%d deadline=%d\n", now, bec, nc, ev,
            bec->idle_deadline);
 #endif
  switch (ev) {
    case MG_EV_POLL: {
      if (bec->idle_deadline > 0 && now > bec->idle_deadline) {
 #ifdef DEBUG
        write_log("bec=%p nc=%p closing due to idleness\n", bec, bec->nc);
 #endif
        bec->nc->flags |= MG_F_CLOSE_IMMEDIATELY;
      }
      break;
    }
    case MG_EV_CLOSE: {
 #ifdef DEBUG
      write_log("bec=%p closed\n", bec);
 #endif
      if (bec->idle_deadline > 0) {
        STAILQ_REMOVE(&bec->be->conns, bec, be_conn, conns);
      }
      free(bec);
      break;
    }
  }
 }
 void release_backend(struct conn_data *conn) {
  /* Disassociate the backend, put back on the pool. */
  struct be_conn *bec = conn->be_conn;
  conn->be_conn = NULL;
  if (bec->nc == NULL) {
    free(bec);
    memset(&conn->backend, 0, sizeof(conn->backend));
    return;
  }
  struct http_backend *be = bec->be;
  bec->nc->user_data = bec;
  bec->nc->handler = idle_backend_handler;
  if (conn->backend.flags.keep_alive) {
    bec->idle_deadline = time(NULL) + CONN_IDLE_TIMEOUT;
    STAILQ_INSERT_TAIL(&be->conns, bec, conns);
 #ifdef DEBUG
    write_log("bec=%p becoming idle\n", bec);
 #endif
    be->num_conns++;
    while (be->num_conns > MAX_IDLE_CONNS) {
      bec = STAILQ_FIRST(&be->conns);
      STAILQ_REMOVE_HEAD(&be->conns, conns);
      be->num_conns--;
      bec->idle_deadline = 0;
      bec->nc->flags = MG_F_CLOSE_IMMEDIATELY;
 #ifdef DEBUG
      write_log("bec=%p evicted\n", bec);
 #endif
    }
  } else {
    bec->idle_deadline = 0;
    bec->nc->flags |= MG_F_CLOSE_IMMEDIATELY;
  }
  memset(&conn->backend, 0, sizeof(conn->backend));
 }
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct conn_data *conn = (struct conn_data *) nc->user_data;
  const time_t now = time(NULL);
 #ifdef DEBUG
  write_log("%d conn=%p nc=%p ev=%d ev_data=%p bec=%p bec_nc=%p\n", now, conn,
            nc, ev, ev_data, conn != NULL ? conn->be_conn : NULL,
            conn != NULL && conn->be_conn != NULL ? conn->be_conn->nc : NULL);
 #endif
  if (conn == NULL) {
    if (ev == MG_EV_ACCEPT) {
      conn = calloc(1, sizeof(*conn));
      if (conn == NULL) {
        send_http_err(nc, s_error_500);
      } else {
        memset(conn, 0, sizeof(*conn));
        nc->user_data = conn;
        conn->client.nc = nc;
        conn->client.body_len = -1;
        conn->backend.body_len = -1;
        conn->last_activity = now;
      }
      return;
    } else {
      nc->flags |= MG_F_CLOSE_IMMEDIATELY;
      return;
    }
  }
  if (ev != MG_EV_POLL) conn->last_activity = now;
  switch (ev) {
    case MG_EV_HTTP_REQUEST: { /* From client */
      assert(conn != NULL);
      assert(conn->be_conn == NULL);
      struct http_message *hm = (struct http_message *) ev_data;
      conn->client.flags.keep_alive = is_keep_alive(hm);
      if (!connect_backend(conn, hm)) {
        respond_with_error(conn, s_error_500);
        break;
      }
      if (conn->backend.nc == NULL) {
        /* This is a redirect, we're done. */
        conn->client.nc->flags |= MG_F_SEND_AND_CLOSE;
        break;
      }
      forward(conn, hm, &conn->client, &conn->backend);
      break;
    }
    case MG_EV_CONNECT: { /* To backend */
      assert(conn != NULL);
      assert(conn->be_conn != NULL);
      int status = *(int *) ev_data;
      if (status != 0) {
        write_log("Error connecting to %s: %d (%s)\n",
                  conn->be_conn->be->host_port, status, strerror(status));
        /* TODO(lsm): mark backend as defunct, try it later on */
        respond_with_error(conn, s_error_500);
        conn->be_conn->nc = NULL;
        release_backend(conn);
        break;
      }
      break;
    }
    case MG_EV_HTTP_REPLY: { /* From backend */
      assert(conn != NULL);
      struct http_message *hm = (struct http_message *) ev_data;
      conn->backend.flags.keep_alive = s_backend_keepalive && is_keep_alive(hm);
      forward(conn, hm, &conn->backend, &conn->client);
      release_backend(conn);
      if (!conn->client.flags.keep_alive) {
        conn->client.nc->flags |= MG_F_SEND_AND_CLOSE;
      } else {
 #ifdef DEBUG
        write_log("conn=%p remains open\n", conn);
 #endif
      }
      break;
    }
    case MG_EV_POLL: {
      assert(conn != NULL);
      if (now - conn->last_activity > CONN_IDLE_TIMEOUT &&
          conn->backend.nc == NULL /* not waiting for backend */) {
 #ifdef DEBUG
        write_log("conn=%p has been idle for too long\n", conn);
        conn->client.nc->flags |= MG_F_SEND_AND_CLOSE;
 #endif
      }
      break;
    }
    case MG_EV_CLOSE: {
      assert(conn != NULL);
      if (nc == conn->client.nc) {
 #ifdef DEBUG
        write_log("conn=%p nc=%p client closed, body_sent=%d\n", conn, nc,
                  conn->backend.body_sent);
 #endif
        conn->client.nc = NULL;
        if (conn->backend.nc != NULL) {
          conn->backend.nc->flags |= MG_F_CLOSE_IMMEDIATELY;
        }
      } else if (nc == conn->backend.nc) {
 #ifdef DEBUG
        write_log("conn=%p nc=%p backend closed\n", conn, nc);
 #endif
        conn->backend.nc = NULL;
        if (conn->client.nc != NULL &&
            (conn->backend.body_len < 0 ||
             conn->backend.body_sent < conn->backend.body_len)) {
          write_log("Backend %s disconnected.\n", conn->be_conn->be->host_port);
          respond_with_error(conn, s_error_500);
        }
      }
      if (conn->client.nc == NULL && conn->backend.nc == NULL) {
        free(conn);
      }
      break;
    }
  }
 }
 static void print_usage_and_exit(const char *prog_name) {
  fprintf(stderr,
          "Usage: %s [-D debug_dump_file] [-p http_port] [-l log] [-k]"
 #if MG_ENABLE_SSL
          "[-s ssl_cert] "
 #endif
          "<[-r] [-v vhost] -b uri_prefix[=replacement] host_port> ... \n",
          prog_name);
  exit(EXIT_FAILURE);
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  int i, redirect = 0;
  const char *vhost = NULL;
  mg_mgr_init(&mgr, NULL);
  /* Parse command line arguments */
  for (i = 1; i < argc; i++) {
    if (strcmp(argv[i], "-D") == 0) {
      mgr.hexdump_file = argv[i + 1];
      i++;
    } else if (strcmp(argv[i], "-k") == 0) {
      s_backend_keepalive = 1;
    } else if (strcmp(argv[i], "-l") == 0 && i + 1 < argc) {
      if (strcmp(argv[i + 1], "-") == 0) {
        s_log_file = stdout;
      } else {
        s_log_file = fopen(argv[i + 1], "a");
        if (s_log_file == NULL) {
          perror("fopen");
          exit(EXIT_FAILURE);
        }
      }
      i++;
    } else if (strcmp(argv[i], "-p") == 0) {
      s_http_port = argv[i + 1];
      i++;
    } else if (strcmp(argv[i], "-r") == 0 && i + 1 < argc) {
      redirect = 1;
    } else if (strcmp(argv[i], "-v") == 0 && i + 1 < argc) {
      if (strcmp(argv[i + 1], "") == 0) {
        vhost = NULL;
      } else {
        vhost = argv[i + 1];
      }
      i++;
    } else if (strcmp(argv[i], "-b") == 0 && i + 2 < argc) {
      struct http_backend *be =
          vhost != NULL ? &s_vhost_backends[s_num_vhost_backends++]
                        : &s_default_backends[s_num_default_backends++];
      STAILQ_INIT(&be->conns);
      char *r = NULL;
      be->vhost = vhost;
      be->uri_prefix = argv[i + 1];
      be->host_port = argv[i + 2];
      be->redirect = redirect;
      be->uri_prefix_replacement = be->uri_prefix;
      if ((r = strchr(be->uri_prefix, '=')) != NULL) {
        *r = '\0';
        be->uri_prefix_replacement = r + 1;
      }
      printf(
          "Adding backend for %s%s : %s "
          "[redirect=%d,prefix_replacement=%s]\n",
          be->vhost == NULL ? "" : be->vhost, be->uri_prefix, be->host_port,
          be->redirect, be->uri_prefix_replacement);
      vhost = NULL;
      redirect = 0;
      i += 2;
 #ifdef MG_ENABLE_SSL
    } else if (strcmp(argv[i], "-s") == 0 && i + 1 < argc) {
      s_ssl_cert = argv[++i];
 #endif
    } else {
      print_usage_and_exit(argv[0]);
    }
  }
  /* Open listening socket */
  if ((nc = mg_bind(&mgr, s_http_port, ev_handler)) == NULL) {
    fprintf(stderr, "mg_bind(%s) failed\n", s_http_port);
    exit(EXIT_FAILURE);
  }
 #if MG_ENABLE_SSL
  if (s_ssl_cert != NULL) {
    const char *err_str = mg_set_ssl(nc, s_ssl_cert, NULL);
    if (err_str != NULL) {
      fprintf(stderr, "Error loading SSL cert: %s\n", err_str);
      exit(1);
    }
  }
 #endif
  mg_set_protocol_http_websocket(nc);
  if (s_num_vhost_backends + s_num_default_backends == 0) {
    print_usage_and_exit(argv[0]);
  }
  signal(SIGINT, signal_handler);
  signal(SIGTERM, signal_handler);
  /* Run event loop until signal is received */
  printf("Starting LB on port %s\n", s_http_port);
  while (s_sig_num == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  /* Cleanup */
  mg_mgr_free(&mgr);
  printf("Exiting on signal %d\n", s_sig_num);
  return EXIT_SUCCESS;
 }
@@ -0,0 +1,21 @@
 #!/bin/sh
 PROG=$1
 PORT=8002
 cleanup() {
  kill -9 $PID >/dev/null 2>&1
 }
 #set -x
 trap cleanup EXIT
 cleanup
 $PROG -p $PORT -b /api/ 127.0.0.1:8000 &
 PID=$!
 # Perform api_server unit test through the load balancer by passing
 # load balancer port to the unit test script
 (cd ../api_server && make && sh unit_test.sh ./api_server $PORT)
 exit $?
@@ -1,12 +0,0 @@
 # 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
@@ -1,105 +0,0 @@
 #include <sys/stat.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include <time.h>
 #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 <a href=/stream>/stream</a> 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;
 }
@@ -0,0 +1,14 @@
 PROG = mqtt_broker
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -pthread -DMG_ENABLE_SSL -DMG_ENABLE_MQTT_BROKER -lssl -lcrypto $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /DMG_ENABLE_SSL /DMG_ENABLE_MQTT_BROKER /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,43 @@
 /*
 * 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 <http://www.gnu.org/licenses/>.
 *
 * 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 <https://www.cesanta.com/license>.
 */
 #include "../../mongoose.h"
 int main(void) {
  struct mg_mgr mgr;
  const char *address = "0.0.0.0:1883";
  struct mg_connection *nc;
  struct mg_mqtt_broker brk;
  mg_mgr_init(&mgr, NULL);
  mg_mqtt_broker_init(&brk, NULL);
  if ((nc = mg_bind(&mgr, address, mg_mqtt_broker)) == NULL) {
    fprintf(stderr, "mg_bind(%s) failed\n", address);
    exit(EXIT_FAILURE);
  }
  nc->user_data = &brk;
  /*
   * TODO: Add a HTTP status page that shows current sessions
   * and subscriptions
   */
  for(;;) {
    mg_mgr_poll(&mgr, 1000);
  }
 }
@@ -0,0 +1,14 @@
 PROG = mqtt_client
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -pthread -DMG_ENABLE_SSL -lssl -lcrypto $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /DMG_ENABLE_SSL /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,86 @@
 /*
 * 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 <http://www.gnu.org/licenses/>.
 *
 * 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 <https://www.cesanta.com/license>.
 */
 #include "mongoose.h"
 struct mg_mqtt_topic_expression topic_expressions[] = {
  {"/stuff", 0}
 };
 static void ev_handler(struct mg_connection *nc, int ev, void *p) {
  struct mg_mqtt_message *msg = (struct mg_mqtt_message *)p;
  (void) nc;
 #if 0
  if (ev != MG_EV_POLL)
    printf("USER HANDLER GOT %d\n", ev);
 #endif
  switch (ev) {
    case MG_EV_CONNECT:
      mg_set_protocol_mqtt(nc);
      mg_send_mqtt_handshake(nc, "dummy");
      break;
    case MG_EV_MQTT_CONNACK:
      if (msg->connack_ret_code != MG_EV_MQTT_CONNACK_ACCEPTED) {
        printf("Got mqtt connection error: %d\n", msg->connack_ret_code);
        exit(1);
      }
      printf("Subscribing to '/stuff'\n");
      mg_mqtt_subscribe(nc, topic_expressions, sizeof(topic_expressions)/sizeof(*topic_expressions), 42);
      break;
    case MG_EV_MQTT_PUBACK:
      printf("Message publishing acknowledged (msg_id: %d)\n", msg->message_id);
      break;
    case MG_EV_MQTT_SUBACK:
      printf("Subscription acknowledged, forwarding to '/test'\n");
      break;
    case MG_EV_MQTT_PUBLISH:
      {
 #if 0
        char hex[1024] = {0};
        mg_hexdump(nc->recv_mbuf.buf, msg->payload.len, hex, sizeof(hex));
        printf("Got incoming message %s:\n%s", msg->topic, hex);
 #else
        printf("Got incoming message %s: %.*s\n", msg->topic, (int)msg->payload.len, msg->payload.p);
 #endif
        printf("Forwarding to /test\n");
        mg_mqtt_publish(nc, "/test", 65, MG_MQTT_QOS(0), msg->payload.p, msg->payload.len);
      }
      break;
    case MG_EV_CLOSE:
      printf("Connection closed\n");
      exit(1);
  }
 }
 int main(void) {
  struct mg_mgr mgr;
  const char *address = "localhost:1883";
  mg_mgr_init(&mgr, NULL);
  if (mg_connect(&mgr, address, ev_handler) == NULL) {
    fprintf(stderr, "mg_connect(%s) failed\n", address);
    exit(EXIT_FAILURE);
  }
  for(;;) {
    mg_mgr_poll(&mgr, 1000);
  }
 }
@@ -1,12 +0,0 @@
 # 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
@@ -1,40 +0,0 @@
 #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;
 }
@@ -0,0 +1,18 @@
 PROG = multithreaded_restful_server
 SOURCES = $(PROG).c ../../mongoose.c
 APP_FLAGS = -DMG_ENABLE_THREADS $(CFLAGS_EXTRA)
 ifeq ($(OS), Windows_NT)
 APP_FLAGS += advapi32.lib
 endif
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ -W -Wall -I../.. -pthread $(APP_FLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@ $(APP_FLAGS)
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,52 @@
 // Copyright (c) 2015 Cesanta Software Limited
 // All rights reserved
 // This example shows how to handle long, blocking requests by
 // handing off computation to different threads. Here, each
 // request spawns a new thread. In a production scenario, a thread
 // pools can be used for efficiency, if required.
 // Long computation is simulated by sleeping for a random interval.
 #include "mongoose.h"
 static const char *s_http_port = "8000";
 static void ev_handler(struct mg_connection *c, int ev, void *p) {
  if (ev == MG_EV_HTTP_REQUEST) {
    struct http_message *hm = (struct http_message *) p;
    char reply[100];
    /* Simulate long calculation */
    sleep(3);
    /* Send the reply */
    snprintf(reply, sizeof(reply), "{ \"uri\": \"%.*s\" }\n",
             (int) hm->uri.len, hm->uri.p);
    mg_printf(c, "HTTP/1.1 200 OK\r\n"
              "Content-Type: application/json\r\n"
              "Content-Length: %d\r\n"
              "\r\n"
              "%s",
              (int) strlen(reply), reply);
  }
 }
 int main(void) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  mg_mgr_init(&mgr, NULL);
  nc = mg_bind(&mgr, s_http_port, ev_handler);
  mg_set_protocol_http_websocket(nc);
  /* For each new connection, execute ev_handler in a separate thread */
  mg_enable_multithreading(nc);
  printf("Starting multi-threaded server on port %s\n", s_http_port);
  for (;;) {
    mg_mgr_poll(&mgr, 3000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,14 @@
 PROG = nc
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -pthread -DMG_ENABLE_SSL -DMG_ENABLE_THREADS -lssl -lcrypto $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /DMG_ENABLE_SSL /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,140 @@
 // 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 <http://www.gnu.org/licenses/>.
 //
 // 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 <https://www.cesanta.com/license>.
 //
 // $Date: 2014-09-28 05:04:41 UTC $
 // This file implements "netcat" utility with SSL and traffic hexdump.
 #include "mongoose.h"
 static sig_atomic_t 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_name) {
  fprintf(stderr, "%s\n", "Copyright (c) 2014 CESANTA SOFTWARE");
  fprintf(stderr, "%s\n", "Usage:");
  fprintf(stderr, "  %s\n [-d debug_file] [-l] [tcp|ssl]://[ip:]port[:cert][:ca_cert]",
          prog_name);
  fprintf(stderr, "%s\n", "Examples:");
  fprintf(stderr, "  %s\n -d hexdump.txt ssl://google.com:443", prog_name);
  fprintf(stderr, "  %s\n -l ssl://443:ssl_cert.pem", prog_name);
  fprintf(stderr, "  %s\n -l tcp://8080", prog_name);
  exit(EXIT_FAILURE);
 }
 static void on_stdin_read(struct mg_connection *nc, int ev, void *p) {
  int ch = * (int *) p;
  (void) ev;
  if (ch < 0) {
    // EOF is received from stdin. Schedule the connection to close
    nc->flags |= MG_F_SEND_AND_CLOSE;
    if (nc->send_mbuf.len <= 0) {
      nc->flags |= MG_F_CLOSE_IMMEDIATELY;
    }
  } else {
    // A character is received from stdin. Send it to the connection.
    unsigned char c = (unsigned char) ch;
    mg_send(nc, &c, 1);
  }
 }
 static void *stdio_thread_func(void *param) {
  struct mg_mgr *mgr = (struct mg_mgr *) param;
  int ch;
  // Read stdin until EOF character by character, sending them to the mgr
  while ((ch = getchar()) != EOF) {
    mg_broadcast(mgr, on_stdin_read, &ch, sizeof(ch));
  }
  s_received_signal = 1;
  return NULL;
 }
 static void ev_handler(struct mg_connection *nc, int ev, void *p) {
  (void) p;
  switch (ev) {
    case MG_EV_ACCEPT:
    case MG_EV_CONNECT:
      mg_start_thread(stdio_thread_func, nc->mgr);
      break;
    case MG_EV_CLOSE:
      s_received_signal = 1;
      break;
    case MG_EV_RECV:
      fwrite(nc->recv_mbuf.buf, 1, nc->recv_mbuf.len, stdout);
      mbuf_remove(&nc->recv_mbuf, nc->recv_mbuf.len);
      break;
    default:
      break;
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  int i, is_listening = 0;
  const char *address = NULL;
  mg_mgr_init(&mgr, NULL);
  // Parse command line options
  for (i = 1; i < argc && argv[i][0] == '-'; i++) {
    if (strcmp(argv[i], "-l") == 0) {
      is_listening = 1;
    } else if (strcmp(argv[i], "-d") == 0 && i + 1 < argc) {
      mgr.hexdump_file = argv[++i];
    } else {
      show_usage_and_exit(argv[0]);
    }
  }
  if (i + 1 == argc) {
    address = argv[i];
  } else {
    show_usage_and_exit(argv[0]);
  }
  signal(SIGTERM, signal_handler);
  signal(SIGINT, signal_handler);
  signal(SIGPIPE, SIG_IGN);
  if (is_listening) {
    if (mg_bind(&mgr, address, ev_handler) == NULL) {
      fprintf(stderr, "mg_bind(%s) failed\n", address);
      exit(EXIT_FAILURE);
    }
  } else if (mg_connect(&mgr, address, ev_handler) == NULL) {
    fprintf(stderr, "mg_connect(%s) failed\n", address);
    exit(EXIT_FAILURE);
  }
  while (s_received_signal == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return EXIT_SUCCESS;
 }
@@ -1,13 +0,0 @@
 # 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
@@ -1,212 +0,0 @@
 // 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 <sys/stat.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #ifdef _WIN32
 #define sleep(x) Sleep((x) * 1000)
 #else
 #include <unistd.h>
 #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 *cert = NULL, *ca_cert = NULL, *port = "2014";
  const char *mitm = NULL, *dump = NULL, *root = "proxy_web_root";
  int i;
  // Parse command line options
  for (i = 1; i < argc; i++) {
    if (strcmp(argv[i], "-ca_cert") == 0 && i + 1 < argc) {
      ca_cert = argv[++i];
    } else if (strcmp(argv[i], "-cert") == 0 && i + 1 < argc) {
      cert = argv[++i];
    } else if (strcmp(argv[i], "-port") == 0 && i + 1 < argc) {
      port = argv[++i];
    } else if (strcmp(argv[i], "-mitm") == 0 && i + 1 < argc) {
      mitm = 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, "ssl_certificate",     cert);
  setopt(s_server, "ssl_ca_certificate",  ca_cert);
  setopt(s_server, "hexdump_file",        dump);
  setopt(s_server, "ssl_mitm_certs",      mitm);
  // 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;
 }
@@ -1,23 +0,0 @@
 <html>
 <head>
  <title>App1 Index</title>
  <style>
    img { height: 40px; }
  </style>
 </head>
 <body>
  <h1>App1 index page. Served locally from the the proxy server filesystem</h1>
  <p>image that references non-existent local resource. Forwarded to
    the 'real' proxy target:</p>
    <img src="http://cesanta.com/images/logo.png" />
  <p>Google logo via HTTPS (external resource, served by remote host):</p>
  <img src="https://www.google.ie/images/srpr/logo11w.png" />
  <p>Same image via HTTP:</p>
  <img src="http://www.google.ie/images/srpr/logo11w.png" />
 </body>
 </html>
@@ -1,37 +0,0 @@
 <html>
 <head>
  <title>App2 Index</title>
  <meta charset="utf-8">
  <script>
  window.onload = function() {
    // Using secure websocket connection, wss://
    var ws = new WebSocket('wss://echo.websocket.org');
    var div = document.getElementById('events');
    ws.onmessage = function(ev) {
      var el = document.createElement('div');
      el.innerHTML = 'websocket message: ' + ev.data;
      div.appendChild(el);
      // Keep only last 5 messages in the list
      while (div.childNodes.length > 5) div.removeChild(div.firstChild);
    };
    // Send random stuff to the websocket connection periodically.
    // websocket server much echo that stuff back.
    window.setInterval(function() {
      var d = new Date();
      ws.send(d.toString());
    }, 1000);
  };
  </script>
 </head>
 <body>
  <h1>App2 index page. Served locally from the
    the proxy's filesystem.</h1>
  <p>
    Following div shows proxy forwarding of websocket connection, served by
    ws://echo.websocket.org:
  </p>
  <div id="events"></div>
 </body>
 </html>
@@ -1,29 +0,0 @@
 <html>
 <head>
  <title> proxy index </title>
  <script type="text/javascript">
  window.onload = function() {
    var es = new EventSource("/api/sse");
    var div = document.getElementById('events');
    es.onmessage = function(ev) {
      var el = document.createElement('div');
      el.innerHTML = 'sse message: ' + ev.data;
      div.appendChild(el);
      // Keep only last 5 messages in the list
      while (div.childNodes.length > 5) div.removeChild(div.firstChild);
    };
  };
  </script>
 </head>
 <body>
  <h1> proxy index page.</h1>
  <ul>
    <li><a href="app1">App1</a> - App1 root</li>
    <li><a href="app2">App2</a> - App2 root</li>
  </ul>
  <h2>SSE pushes, done by separate threads at random times:</h2>
  <div id="events"></div>
 </body>
 </html>
@@ -1,50 +0,0 @@
 -----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
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 Yx+YgxZrDhfaZ0cxhHGPRKEAxM3IKwT2C8/wCaSiLWXZZpTifnSD99vtOt4wEfrG
 +AghNd5kamFiM9tU0AyvhJc2vdJFuXrfeC7ntM8CgYBGDA+t4cZcbRhu7ow/OKYF
 kulP3nJgHP/Y+LMrl3cEldZ2jEfZmCElVNQvfd2XwTl7injhOzvzPiKRF3jDez7D
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 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
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 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-----
@@ -0,0 +1,14 @@
 PROG = publish_subscribe
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -DMG_ENABLE_THREADS -pthread $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,112 @@
 // 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 <http://www.gnu.org/licenses/>.
 //
 // 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 <https://www.cesanta.com/license>.
 //
 // $Date: 2014-09-28 05:04:41 UTC $
 #include "mongoose.h"
 static void *stdin_thread(void *param) {
  int ch, sock = * (int *) param;
  while ((ch = getchar()) != EOF) {
    unsigned char c = (unsigned char) ch;
    send(sock, &c, 1, 0);  // Forward all types characters to the socketpair
  }
  return NULL;
 }
 static void server_handler(struct mg_connection *nc, int ev, void *p) {
  (void) p;
  if (ev == MG_EV_RECV) {
    // Push received message to all ncections
    struct mbuf *io = &nc->recv_mbuf;
    struct mg_connection *c;
    for (c = mg_next(nc->mgr, NULL); c != NULL; c = mg_next(nc->mgr, c)) {
      mg_send(c, io->buf, io->len);
    }
    mbuf_remove(io, io->len);
  }
 }
 static void client_handler(struct mg_connection *conn, int ev, void *p) {
  struct mbuf *io = &conn->recv_mbuf;
  (void) p;
  if (ev == MG_EV_CONNECT) {
    if (conn->flags & MG_F_CLOSE_IMMEDIATELY) {
      printf("%s\n", "Error connecting to server!");
      exit(EXIT_FAILURE);
    }
    printf("%s\n", "Connected to server. Type a message and press enter.");
  } else if (ev == MG_EV_RECV) {
    if (conn->flags & MG_F_USER_1) {
      // Received data from the stdin, forward it to the server
      struct mg_connection *c = (struct mg_connection *) conn->user_data;
      mg_send(c, io->buf, io->len);
      mbuf_remove(io, io->len);
    } else {
      // Received data from server connection, print it
      fwrite(io->buf, io->len, 1, stdout);
      mbuf_remove(io, io->len);
    }
  } else if (ev == MG_EV_CLOSE) {
    // Connection has closed, most probably cause server has stopped
    exit(EXIT_SUCCESS);
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  if (argc != 3) {
    fprintf(stderr, "Usage: %s <port> <client|server>\n", argv[0]);
    exit(EXIT_FAILURE);
  } else if (strcmp(argv[2], "client") == 0) {
    int fds[2];
    struct mg_connection *ioconn, *server_conn;
    mg_mgr_init(&mgr, NULL);
    // Connect to the pubsub server
    server_conn = mg_connect(&mgr, argv[1], client_handler);
    if (server_conn == NULL) {
      fprintf(stderr, "Cannot connect to port %s\n", argv[1]);
      exit(EXIT_FAILURE);
    }
    // Create a socketpair and give one end to the thread that reads stdin
    mg_socketpair(fds, SOCK_STREAM);
    mg_start_thread(stdin_thread, &fds[1]);
    // The other end of a pair goes inside the server
    ioconn = mg_add_sock(&mgr, fds[0], client_handler);
    ioconn->flags |= MG_F_USER_1;    // Mark this so we know this is a stdin
    ioconn->user_data = server_conn;
  } else {
    // Server code path
    mg_mgr_init(&mgr, NULL);
    mg_bind(&mgr, argv[1], server_handler);
    printf("Starting pubsub server on port %s\n", argv[1]);
  }
  for (;;) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return EXIT_SUCCESS;
 }
@@ -0,0 +1,18 @@
 NS=../../mongoose.c
 FLAGS = ../../mongoose.c -I../..
 CFLAGS=-W -Wall -DMG_ENABLE_THREADS -pthread $(CFLAGS_EXTRA)
 PROGS = device_side cloud_side
 all: $(PROGS)
 device_side: Makefile device_side.c $(NS)
 	$(CC) device_side.c $(FLAGS) -o $@ $(CFLAGS)
 cloud_side: Makefile cloud_side.c $(NS)
 	$(CC) cloud_side.c $(FLAGS) -o $@ $(CFLAGS)
 device_side.exe: Makefile device_side.c $(NS)
 	cl device_side.c $(FLAGS) /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROGS)
@@ -0,0 +1,72 @@
 = Raspberry Pi camera/LED demo
 == Overview
 The link:/[demo] consists of web app providing access to a webcam and a LED attached to a RaspberryPi.
 The device is assumed to have a limited bandwidth towards the server hosting the web app.
 == Objective
 The demo shows how to use websockets to communicate bidirectionally with an embedded device using standard protocols.
 It also shows that it's possible to use Smart.c to develop also the cloud endpoint and expose WebSocket and RESTful APIs
 easy to integreate with modern web stacks.
 == How it works
 image::docs/arch.png[]
 There are two components, once with runs on the device (`device_side`) and one that runs on a stronger machine
 and with more bandwidth (`cloud_side`).
 The device app connects to the cloud app via websocket and sends a new jpeg frame as fast as the underlying `raspistill` camera
 grabbing application can handle. The device automatically attempts reconnecting.
 The cloud side serves the webapp static pages and serves an MPJEG image on `/mpjg`.
 The MPJEG image handler blocks all the clients until a JPEG frame arrives via websocket
 and then every client will recieve a copy of the frame.
 The web app can turn on and off the LED via a RESTful api accessible via the `/api` handler.
 == Installation
 === Server side
 ----
 git clone https://github.com/cesanta/mongoose
 cd mongoose/examples/web_demo
 make cloud_side && ./cloud_side 0.0.0.0:8080
 ----
 === Raspberry Pi
 The instructions provided here are tailored for the Raspbian distribution.
 ==== Dependencies
 jpegoptim::
 apt-get install jpegoptim
 camera::
 run raspi-config and enable camera
 ==== LED
 In order to access the led on your link:http://www.qdh.org.uk/wordpress/?page_id=15[HotPi]
 board you need to export the gpio pins:
 ----
 for i in 22 23 24; do
  echo $i >/sys/class/gpio/export
  echo out >/sys/class/gpio/gpio$i/direction
  chgrp pi /sys/class/gpio/gpio$i/value
 done
 ----
 ==== Build and run
 ----
 git clone https://github.com/cesanta/mongoose
 cd mongoose/examples/web_demo
 make device_side && ./device_side yourserver:8080
 ----
@@ -0,0 +1,143 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 /*
 * This is the cloud endpoint of the Raspberry Pi camera/LED example
 * of the Mongoose networking library.
 * It is a simple web server, serving both static files, a REST API handler,
 * and a WebSocket handler.
 */
 #include "mongoose.h"
 static struct mg_serve_http_opts web_root_opts;
 /*
 * Forwards the jpeg frame data to all open mjpeg connections.
 *
 * Incoming messages follow a very simple binary frame format:
 * 4 bytes: timestamp (in network byte order)
 * n bytes: jpeg payload
 *
 * The timestamp is used to compute a lag.
 * It's done in a quite stupid way as it requires the device clock
 * to be synchronized with the cloud endpoint.
 */
 static void push_frame_to_clients(struct mg_mgr *mgr,
                                  const struct websocket_message *wm) {
  struct mg_connection *nc;
  /*
   * mjpeg connections are tagged with the MG_F_USER_2 flag so we can find them
   * my scanning the connection list provided by the mongoose manager.
   */
  for (nc = mg_next(mgr, NULL); nc != NULL; nc = mg_next(mgr, nc)) {
    if (!(nc->flags & MG_F_USER_2)) continue;  // Ignore un-marked requests
    mg_printf(nc, "--w00t\r\nContent-Type: image/jpeg\r\n"
              "Content-Length: %lu\r\n\r\n", (unsigned long) wm->size);
    mg_send(nc, wm->data, wm->size);
    mg_send(nc, "\r\n", 2);
    printf("Image pushed to %p\n", nc);
  }
 }
 /*
 * Forwards API payload to the device, by scanning through
 * all the connections to find those that are tagged as WebSocket.
 */
 static void send_command_to_the_device(struct mg_mgr *mgr,
                                       const struct mg_str *cmd) {
  struct mg_connection *nc;
  for (nc = mg_next(mgr, NULL); nc != NULL; nc = mg_next(mgr, nc)) {
    if (!(nc->flags & MG_F_IS_WEBSOCKET)) continue;  // Ignore non-websocket requests
    mg_send_websocket_frame(nc, WEBSOCKET_OP_TEXT, cmd->p, cmd->len);
    printf("Sent API command [%.*s] to %p\n", (int) cmd->len, cmd->p, nc);
  }
 }
 /*
 * Main event handler. Receives data events and dispatches to
 * the appropriate handler function.
 *
 * 1. RESTful API requests are handled by send_command_to_the_device.
 * 2. requests to /mpeg are established and left open waiting for data to arrive
 *    from WebSocket.
 * 3. WebSocket frames are handled by push_frame_to_clients.
 * 4. All other connections are passed to the mg_serve_http handler
 *    which serves static files.
 */
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct websocket_message *wm = (struct websocket_message *) ev_data;
  struct http_message *hm = (struct http_message *) ev_data;
  switch (ev) {
    case MG_EV_HTTP_REQUEST:
      if (mg_vcmp(&hm->uri, "/mjpg") == 0) {
        nc->flags |= MG_F_USER_2;   /* Set a mark on image requests */
        mg_printf(nc, "%s",
                "HTTP/1.0 200 OK\r\n"
                "Cache-Control: no-cache\r\n"
                "Pragma: no-cache\r\n"
                "Expires: Thu, 01 Dec 1994 16:00:00 GMT\r\n"
                "Connection: close\r\n"
                "Content-Type: multipart/x-mixed-replace; "
                "boundary=--w00t\r\n\r\n");
      } else if (mg_vcmp(&hm->uri, "/api") == 0 && hm->body.len > 0) {
        /*
         * RESTful API call. HTTP message body should be a JSON message.
         * We should parse it and take appropriate action.
         * In our case, simply forward that call to the device.
         */
        printf("API CALL: [%.*s] [%.*s]\n", (int) hm->method.len, hm->method.p,
               (int) hm->body.len, hm->body.p);
        send_command_to_the_device(nc->mgr, &hm->body);
        mg_printf(nc, "HTTP/1.0 200 OK\nContent-Length: 0\n\n");
      } else {
        /* Delegate to the static web server handler for all other paths. */
        mg_serve_http(nc, hm, web_root_opts);
      }
      break;
    case MG_EV_WEBSOCKET_FRAME:
      printf("Got websocket frame, size %lu\n", (unsigned long) wm->size);
      push_frame_to_clients(nc->mgr, wm);
      break;
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  if (argc != 2) {
    fprintf(stderr, "Usage: %s <listening_addr>\n", argv[0]);
    exit(EXIT_FAILURE);
  }
  printf("Listening on: [%s]\n", argv[1]);
  mg_mgr_init(&mgr, NULL);
  /*
   * mg_bind() creates a listening connection on a given ip:port and
   * with an attached event handler.
   * The event handler will only trigger TCP events until the http
   * protocol handler is installed.
   */
  if ((nc = mg_bind(&mgr, argv[1], ev_handler)) == NULL) {
    fprintf(stderr, "Error binding to %s\n", argv[1]);
    exit(EXIT_FAILURE);
  }
  mg_set_protocol_http_websocket(nc);
  web_root_opts.document_root =  "./web_root";
  /*
   * We explicitly hand over control to the Mongoose manager
   * in this event loop and we can easily multiplex other activities.
   */
  for(;;) {
    mg_mgr_poll(&mgr, 1000);
  }
  return EXIT_SUCCESS;
 }
@@ -0,0 +1,168 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 /*
 * This is the device endpoint of the Raspberry Pi camera/LED example
 * of the Mongoose networking library.
 * It is a simple websocket client, sending jpeg frames obtained from the
 * RPi camera and receiving JSON commands through the same WebSocket channel
 */
 #include <unistd.h>
 #include "mongoose.h"
 static int s_poll_interval_ms = 100;
 static int s_still_period = 100;
 static int s_vertical_flip = 0;
 static int s_width = 320;
 static int s_height = 180;
 static const char *s_mjpg_file = "/var/run/shm/cam.jpg";
 static struct mg_connection *client;
 /*
 * Check if there is a new image available and
 * send it to the cloud endpoint if the send buffer is not too full.
 * The image is moved in a new file by the jpeg optimizer function;
 * this ensures that we will detect a new frame when raspistill writes
 * it's output file.
 */
 static void send_mjpg_frame(struct mg_connection *nc, const char *file_path) {
  static int skipped_frames = 0;
  struct stat st;
  FILE *fp;
  /* Check file modification time. */
  if (stat(file_path, &st) == 0) {
    /* Skip the frame if there is too much unsent data. */
    if (nc->send_mbuf.len > 256) skipped_frames++;
    /* Read new mjpg frame into a buffer */
    fp = fopen(file_path, "rb");
    char buf[st.st_size];
    fread(buf, 1, sizeof(buf), fp);
    fclose(fp);
    /*
     * Delete the file so we can detect when raspistill creates a new one.
     * mtime granularity is only 1s.
     */
    unlink(file_path);
    /* Send those buffer through the websocket connection */
    mg_send_websocket_frame(nc, WEBSOCKET_OP_BINARY, buf, sizeof(buf));
    printf("Sent mjpg frame, %lu bytes after skippping %d frames\n", (unsigned long) sizeof(buf), skipped_frames);
    skipped_frames = 0;
  }
 }
 /*
 * Turn on or off the LED.
 * The LED in this example is an RGB led, so all the colors have to be set.
 */
 static void set_led(int v) {
  char cmd[512];
  snprintf(cmd, sizeof(cmd), "for i in 22 23 24; do"
           " echo %d >/sys/class/gpio/gpio$i/value; done", v);
  system(cmd);
 }
 /*
 * Parse control JSON and perform command:
 * for now only LED on/off is supported.
 */
 static void perform_control_command(const char* data, size_t len) {
  struct json_token toks[200], *onoff;
  parse_json(data, len, toks, sizeof(toks));
  onoff = find_json_token(toks, "onoff");
  set_led(strncmp("[\"on\"]", onoff->ptr, onoff->len) == 0);
 }
 /* Main event handler. Sends websocket frames and receives control commands */
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct websocket_message *wm = (struct websocket_message *) ev_data;
  switch (ev) {
    case MG_EV_CONNECT:
      printf("Reconnect: %s\n", * (int *) ev_data == 0 ? "ok" : "failed");
      if (* (int *) ev_data == 0) {
        /*
         * Tune the tcp send buffer size, so that we can skip frames
         * when the connection is congested. This helps maintaining a
         * reasonable latency.
         */
        int sndbuf_size = 512;
        if(setsockopt(nc->sock, SOL_SOCKET, SO_SNDBUF,
                      (void *) &sndbuf_size, sizeof(int)) == -1) {
          perror("failed to tune TCP send buffer size\n");
        }
        mg_send_websocket_handshake(nc, "/stream", NULL);
      }
      break;
    case MG_EV_CLOSE:
      printf("Connection %p closed\n", nc);
      client = NULL;
      break;
    case MG_EV_POLL:
      send_mjpg_frame(nc, s_mjpg_file);
      break;
    case MG_EV_WEBSOCKET_FRAME:
      printf("Got control command: [%.*s]\n", (int) wm->size, wm->data);
      perform_control_command((const char*)wm->data, wm->size);
      break;
  }
 }
 /*
 * This thread regenerates s_mjpg_file every s_poll_interval_ms milliseconds.
 * It is Raspberry PI specific, change this function on other systems.
 */
 static void *generate_mjpg_data_thread_func(void *param) {
  char cmd[400];
  (void) param;
  snprintf(cmd, sizeof(cmd), "raspistill -w %d -h %d -n -q 100 -tl %d "
                "-t 999999999 -v %s -o %s >/dev/null 2>&1", s_width, s_height,
                s_still_period, s_vertical_flip ? "-vf" : "", s_mjpg_file);
  for(;;) {
    int ret = system(cmd);
    if (WIFSIGNALED(ret)) exit(1);
    sleep(1);
  }
  return NULL;
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  char *addr = argv[1];
  if (argc < 2) {
    fprintf(stderr, "Usage: %s <server_address>\n", argv[0]);
    exit(EXIT_FAILURE);
  }
  /* Start separate thread that generates MJPG data */
  mg_start_thread(generate_mjpg_data_thread_func, NULL);
  printf("Streaming [%s] to [%s]\n", s_mjpg_file, addr);
  mg_mgr_init(&mgr, NULL);
  for(;;) {
    mg_mgr_poll(&mgr, s_poll_interval_ms);
    /* Reconnect if disconnected */
    if (!client) {
      sleep(1); /* limit reconnections frequency */
      printf("Reconnecting to %s...\n", addr);
      client = mg_connect(&mgr, addr, ev_handler);
      if (client) mg_set_protocol_http_websocket(client);
    }
  }
  return EXIT_SUCCESS;
 }
@@ -0,0 +1,533 @@
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 </head>
 <body class="article">
 <div id="header">
 <h1>Raspberry Pi camera/LED demo</h1>
 </div>
 <div id="content">
 <div class="sect1">
 <h2 id="_overview">Overview</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>The <a href="/">demo</a> consists of web app providing access to a webcam and a LED attached to a RaspberryPi.
 The device is assumed to have a limited bandwidth towards the server hosting the web app.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_objective">Objective</h2>
 <div class="sectionbody">
 <div class="paragraph">
 <p>The demo shows how to use websockets to communicate bidirectionally with an embedded device using standard protocols.</p>
 </div>
 <div class="paragraph">
 <p>It also shows that it&#8217;s possible to use Smart.c to develop also the cloud endpoint and expose WebSocket and RESTful APIs
 easy to integreate with modern web stacks.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_how_it_works">How it works</h2>
 <div class="sectionbody">
 <div class="imageblock">
 <div class="content">
 <img src="docs/arch.png" alt="arch">
 </div>
 </div>
 <div class="paragraph">
 <p>There are two components, once with runs on the device (<code>device_side</code>) and one that runs on a stronger machine
 and with more bandwidth (<code>cloud_side</code>).</p>
 </div>
 <div class="paragraph">
 <p>The device app connects to the cloud app via websocket and sends a new jpeg frame as fast as the underlying <code>raspistill</code> camera
 grabbing application can handle. The device automatically attempts reconnecting.</p>
 </div>
 <div class="paragraph">
 <p>The cloud side serves the webapp static pages and serves an MPJEG image on <code>/mpjg</code>.
 The MPJEG image handler blocks all the clients until a JPEG frame arrives via websocket
 and then every client will recieve a copy of the frame.</p>
 </div>
 <div class="paragraph">
 <p>The web app can turn on and off the LED via a RESTful api accessible via the <code>/api</code> handler.</p>
 </div>
 </div>
 </div>
 <div class="sect1">
 <h2 id="_installation">Installation</h2>
 <div class="sectionbody">
 <div class="sect2">
 <h3 id="_server_side">Server side</h3>
 <div class="listingblock">
 <div class="content">
 <pre>git clone https://github.com/cesanta/mongoose
 cd mongoose/examples/web_demo
 make cloud_side &amp;&amp; ./cloud_side 0.0.0.0:8080</pre>
 </div>
 </div>
 </div>
 <div class="sect2">
 <h3 id="_raspberry_pi">Raspberry Pi</h3>
 <div class="paragraph">
 <p>The instructions provided here are tailored for the Raspbian distribution.</p>
 </div>
 <div class="sect3">
 <h4 id="_dependencies">Dependencies</h4>
 <div class="dlist">
 <dl>
 <dt class="hdlist1">jpegoptim</dt>
 <dd>
 <p>apt-get install jpegoptim</p>
 </dd>
 <dt class="hdlist1">camera</dt>
 <dd>
 <p>run raspi-config and enable camera</p>
 </dd>
 </dl>
 </div>
 </div>
 <div class="sect3">
 <h4 id="_led">LED</h4>
 <div class="paragraph">
 <p>In order to access the led on your <a href="http://www.qdh.org.uk/wordpress/?page_id=15">HotPi</a>
 board you need to export the gpio pins:</p>
 </div>
 <div class="listingblock">
 <div class="content">
 <pre>for i in 22 23 24; do
  echo $i &gt;/sys/class/gpio/export
  echo out &gt;/sys/class/gpio/gpio$i/direction
  chgrp pi /sys/class/gpio/gpio$i/value
 done</pre>
 </div>
 </div>
 </div>
 <div class="sect3">
 <h4 id="_build_and_run">Build and run</h4>
 <div class="listingblock">
 <div class="content">
 <pre>git clone https://github.com/cesanta/mongoose
 cd mongoose/examples/web_demo
 make device_side &amp;&amp; ./device_side yourserver:8080</pre>
 </div>
 </div>
 </div>
 </div>
 </div>
 </div>
 </div>
 <div id="footer">
 <div id="footer-text">
 Last updated 2014-11-03 21:30:06 GMT
 </div>
 </div>
 </body>
 </html>
@@ -0,0 +1 @@
 ../../docs/arch.png
@@ -0,0 +1,15 @@
 /*
 * Framework7 0.9.6
 * Full Featured HTML Framework For Building iOS 7 Apps
 *
 * http://www.idangero.us/framework7
 *
 * Copyright 2014, Vladimir Kharlampidi
 * The iDangero.us
 * http://www.idangero.us/
 *
 * Licensed under MIT
 *
 * Released on: September 13, 2014
 */
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@@ -0,0 +1,18 @@
 /*
 * Framework7 0.9.6
 * Full Featured HTML Framework For Building iOS 7 Apps
 *
 * http://www.idangero.us/framework7
 *
 * Copyright 2014, Vladimir Kharlampidi
 * The iDangero.us
 * http://www.idangero.us/
 *
 * Licensed under MIT
 *
 * Released on: September 13, 2014
 */
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class="item-after"><a href="#" class="close-notification"><span></span></a></div>':"")+"</div>"+(a.subtitle?'<div class="item-subtitle">'+a.subtitle+"</div>":"")+(a.message?'<div class="item-text">'+a.message+"</div>":"")+"</div></div></li>",v.innerHTML=c;var e=n(v).children();e.on("click",function(b){var c=!1;n(b.target).is(".close-notification")||n(b.target).parents(".close-notification").length>0?c=!0:(a.onClick&&a.onClick(b,e[0]),a.closeOnClick&&(c=!0)),c&&l.closeNotification(e[0])}),a.onClose&&e.data("f7NotificationOnClose",function(){a.onClose(e[0])}),a.additionalClass&&e.addClass(a.additionalClass),a.hold&&setTimeout(function(){e.length>0&&l.closeNotification(e[0])},a.hold),d.prepend(e[0]),b.show();var f=e.height();e.css("marginTop",-f+"px"),e.transition(0);{e[0].clientLeft}return e.transition(""),e.css("marginTop","0px"),b.transform("translate3d(0, 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@@ -0,0 +1,108 @@
 <!DOCTYPE html>
 <html>
  <head>
    <!-- Required meta tags-->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <link rel="stylesheet" href="framework7.min.css">
    <title>Smart.c mjpg example</title>
    <style type="text/css">
     .image img {
       display: block;
       margin-left: auto;
       margin-right: auto;
     }
    </style>
  </head>
  <body>
    <!-- Status bar overlay for full screen mode (PhoneGap) -->
    <div class="statusbar-overlay"></div>
    <!-- Views -->
    <div class="views">
      <!-- Your main view, should have "view-main" class -->
      <div class="view view-main">
        <!-- Top Navbar-->
        <div class="navbar">
          <div class="navbar-inner">
            <!-- We need cool sliding animation on title element, so we have additional "sliding" class -->
            <div class="left">
              <a href="docs/docs/doc.html" class="link" onclick="location='docs/docs/doc.html'">
                <span>About</span>
              </a>
            </div>
            <div class="center sliding">Remote Camera</div>
            <div class="right sliding">
              <a href="https://github.com/cesanta/mongoose/tree/master/examples/raspberry_pi_mjpeg_led" class="link" onclick="location='https://github.com/cesanta/mongoose/tree/master/examples/raspberry_pi_mjpeg_led'">
                <span>Github</span>
                <i class="icon icon-next"></i>
              </a>
            </div>
          </div>
        </div>
        <!-- Pages container, because we use fixed-through navbar and toolbar, it has additional appropriate classes-->
        <div class="pages navbar-through toolbar-through">
          <!-- Page, "data-page" contains page name -->
          <div data-page="index" class="page">
            <!-- Scrollable page content -->
            <div class="page-content">
              <div class="content-block-title">Camera View</div>
              <div class="content-block image">
                <img src="/mjpg">
              </div>
              <div class="content-block-title">Device Control</div>
              <div class="list-block">
                <form action="/api" method="GET" enctype="application/json"
                      id="form-control">
                  <ul>
                    <!-- Switch (Checkbox) -->
                    <li>
                      <div class="item-content">
                        <div class="item-inner">
                          <div class="item-title label">LED on/off</div>
                          <div class="item-input">
                            <label class="label-switch">
                              <input type="checkbox" name="onoff">
                              <div class="checkbox"></div>
                            </label>
                          </div>
                        </div>
                      </div>
                    </li>
                  </ul>
                </form>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <script type="text/javascript" src="framework7.min.js"></script>
    <script type="text/javascript">
      var myApp = new Framework7({
        pushState: true,
        swipePanel: 'left',
        // ... other parameters
      });
      Dom7(document).on('change', '#form-control', function(ev) {
        var data = myApp.formToJSON('#form-control');
        var json = JSON.stringify(data);
        Dom7.ajax({
          url: '/api',
          method: 'POST',
          contentType: 'application/json',
          data: json
        });
      });
    </script>
  </body>
 </html>
@@ -1,12 +0,0 @@
 # 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
@@ -1,51 +0,0 @@
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #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;
 }
@@ -0,0 +1,14 @@
 PROG = restful_client
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. -pthread $(CFLAGS_EXTRA)
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /Fe$@
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -0,0 +1,56 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #include "mongoose.h"
 /* RESTful server host and request URI */
 static const char *s_target_address = "ajax.googleapis.com:80";
 static const char *s_request = "/ajax/services/search/web?v=1.0&q=cesanta";
 static int s_exit_flag = 0;
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct http_message *hm = (struct http_message *) ev_data;
  int connect_status;
  switch (ev) {
    case MG_EV_CONNECT:
      connect_status = * (int *) ev_data;
      if (connect_status == 0) {
        printf("Connected to %s, sending request...\n", s_target_address);
        mg_printf(nc, "GET %s HTTP/1.0\r\nHost: %s\r\n\r\n",
                  s_request, s_target_address);
      } else {
        printf("Error connecting to %s: %s\n",
               s_target_address, strerror(connect_status));
        s_exit_flag = 1;
      }
      break;
    case MG_EV_HTTP_REPLY:
      printf("Got reply:\n%.*s\n", (int) hm->body.len, hm->body.p);
      nc->flags |= MG_F_SEND_AND_CLOSE;
      s_exit_flag = 1;
      break;
    default:
      break;
  }
 }
 int main(void) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  mg_mgr_init(&mgr, NULL);
  nc = mg_connect(&mgr, s_target_address, ev_handler);
  mg_set_protocol_http_websocket(nc);
  printf("Starting RESTful client against %s\n", s_target_address);
  while (s_exit_flag == 0) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
@@ -0,0 +1,20 @@
 PROG = restful_server
 SOURCES = $(PROG).c ../../mongoose.c
 CFLAGS = -W -Wall -I../.. $(CFLAGS_EXTRA)
 ifeq ($(SSL), openssl)
 	CFLAGS += -DMG_ENABLE_SSL -lssl -lcrypto -lcrypto
 else ifeq ($(SSL), krypton)
 	CFLAGS += -DMG_ENABLE_SSL ../../../krypton/krypton.c
 endif
 all: $(PROG)
 $(PROG): $(SOURCES)
 	$(CC) $(SOURCES) -o $@ $(CFLAGS)
 $(PROG).exe: $(SOURCES)
 	cl $(SOURCES) /I../.. /MD /DMG_ENABLE_THREADS /Fe$@ advapi32.lib
 clean:
 	rm -rf *.gc* *.dSYM *.exe *.obj *.o a.out $(PROG)
@@ -5,10 +5,11 @@
  <title>RESTful API demo</title>
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <style type="text/css">
-    * { outline: none; font: 16px/1.4 Helvetica, Arial, sans-serif; }
+    * { outline: none; }
    body {
-      background-color: #cde; margin: 0;
+      background-color: #789; margin: 0;
      padding: 0; font: 16px/1.4 Helvetica, Arial, sans-serif;
      font: 16px/1.4 Helvetica, Arial, sans-serif;
    }
    div.content {
      width: 800px; margin: 2em auto; padding: 20px 50px;
@@ -23,13 +24,13 @@
    }
 </style>
-<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
+<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
 <script language="javascript" type="text/javascript">
  jQuery(function() {
    $(document).on('keyup', '#n1, #n2', function() {
      $.ajax({
-        url: '/api/sum',
+        url: '/api/v1/sum',
        method: 'POST',
        dataType: 'json',
        data: { n1: $('#n1').val(), n2: $('#n2').val() },
@@ -47,10 +48,10 @@
    <h1>RESTful API demo.</h1>
    <p>
-      This page demonstrates how Mongoose web server could be used to implement
+      This page demonstrates how Mongoose could be used to implement
-      RESTful APIs. Enter numbers below, and press Submit. Browser will send
+      RESTful APIs. Start typing numbers into the text fields below.
-      two numbers to <tt>/api/sum</tt> URI, Mongoose calclulates the sum of
+      Browser sends two numbers to <tt>/api/v1/sum</tt> URI.
-      two and returns the result.
+      Web server calclulates the sum and returns the result.
    </p>
    <div>
@@ -0,0 +1,122 @@
 /*
 * Copyright (c) 2014 Cesanta Software Limited
 * All rights reserved
 */
 #include "mongoose.h"
 static const char *s_http_port = "8000";
 static struct mg_serve_http_opts s_http_server_opts;
 static void handle_sum_call(struct mg_connection *nc, struct http_message *hm) {
  char n1[100], n2[100];
  double result;
  /* Get form variables */
  mg_get_http_var(&hm->body, "n1", n1, sizeof(n1));
  mg_get_http_var(&hm->body, "n2", n2, sizeof(n2));
  /* Send headers */
  mg_printf(nc, "%s", "HTTP/1.1 200 OK\r\nTransfer-Encoding: chunked\r\n\r\n");
  /* Compute the result and send it back as a JSON object */
  result = strtod(n1, NULL) + strtod(n2, NULL);
  mg_printf_http_chunk(nc, "{ \"result\": %lf }", result);
  mg_send_http_chunk(nc, "", 0);  /* Send empty chunk, the end of response */
 }
 static void ev_handler(struct mg_connection *nc, int ev, void *ev_data) {
  struct http_message *hm = (struct http_message *) ev_data;
  switch (ev) {
    case MG_EV_HTTP_REQUEST:
      if (mg_vcmp(&hm->uri, "/api/v1/sum") == 0) {
        handle_sum_call(nc, hm);                    /* Handle RESTful call */
      } else if (mg_vcmp(&hm->uri, "/printcontent") == 0) {
        char buf[100] = {0};
        memcpy(buf, hm->body.p,
               sizeof(buf) - 1 < hm->body.len? sizeof(buf) - 1 : hm->body.len);
        printf("%s\n", buf);
      } else {
        mg_serve_http(nc, hm, s_http_server_opts);  /* Serve static content */
      }
      break;
    default:
      break;
  }
 }
 int main(int argc, char *argv[]) {
  struct mg_mgr mgr;
  struct mg_connection *nc;
  int i;
  char *cp;
 #ifdef MG_ENABLE_SSL
  const char *ssl_cert = NULL;
 #endif
  mg_mgr_init(&mgr, NULL);
  /* Process command line options to customize HTTP server */
  for (i = 1; i < argc; i++) {
    if (strcmp(argv[i], "-D") == 0 && i + 1 < argc) {
      mgr.hexdump_file = argv[++i];
    } else if (strcmp(argv[i], "-d") == 0 && i + 1 < argc) {
      s_http_server_opts.document_root = argv[++i];
    } else if (strcmp(argv[i], "-p") == 0 && i + 1 < argc) {
      s_http_port = argv[++i];
    } else if (strcmp(argv[i], "-a") == 0 && i + 1 < argc) {
      s_http_server_opts.auth_domain = argv[++i];
    } else if (strcmp(argv[i], "-P") == 0 && i + 1 < argc) {
      s_http_server_opts.global_auth_file = argv[++i];
    } else if (strcmp(argv[i], "-p") == 0 && i + 1 < argc) {
      s_http_server_opts.per_directory_auth_file = argv[++i];
    } else if (strcmp(argv[i], "-r") == 0 && i + 1 < argc) {
      s_http_server_opts.url_rewrites = argv[++i];
 #ifndef MG_DISABLE_CGI
    } else if (strcmp(argv[i], "-i") == 0 && i + 1 < argc) {
      s_http_server_opts.cgi_interpreter = argv[++i];
 #endif
 #ifdef MG_ENABLE_SSL
    } else if (strcmp(argv[i], "-s") == 0 && i + 1 < argc) {
      ssl_cert = argv[++i];
 #endif
    }
  }
  /* Set HTTP server options */
  nc = mg_bind(&mgr, s_http_port, ev_handler);
  if (nc == NULL) {
    fprintf(stderr, "Error starting server on port %s\n", s_http_port);
    exit(1);
  }
 #ifdef MG_ENABLE_SSL
  if (ssl_cert != NULL) {
    const char *err_str = mg_set_ssl(nc, ssl_cert, NULL);
    if (err_str != NULL) {
      fprintf(stderr, "Error loading SSL cert: %s\n", err_str);
      exit(1);
    }
  }
 #endif
  mg_set_protocol_http_websocket(nc);
  s_http_server_opts.document_root = ".";
  s_http_server_opts.enable_directory_listing = "yes";
  /* Use current binary directory as document root */
  if (argc > 0 && ((cp = strrchr(argv[0], '/')) != NULL ||
      (cp = strrchr(argv[0], '/')) != NULL)) {
    *cp = '\0';
    s_http_server_opts.document_root = argv[0];
  }
  printf("Starting RESTful server on port %s\n", s_http_port);
  for (;;) {
    mg_mgr_poll(&mgr, 1000);
  }
  mg_mgr_free(&mgr);
  return 0;
 }
		`@@ -0,0 +1,2 @@`
							`# This "makefile" is only intended to prevent errors during main makefile execution`
							`all:`