diff options
Diffstat (limited to 'src/civetweb/examples')
39 files changed, 4669 insertions, 0 deletions
diff --git a/src/civetweb/examples/README.md b/src/civetweb/examples/README.md new file mode 100644 index 000000000..cf5495977 --- /dev/null +++ b/src/civetweb/examples/README.md @@ -0,0 +1,13 @@ + +Examples +===== + +Two examples show how to embed civetweb into a C ([embedded_c](https://github.com/civetweb/civetweb/tree/master/examples/embedded_c)) or a C++ ([embedded_cpp](https://github.com/civetweb/civetweb/tree/master/examples/embedded_cpp)) application. +The C++ wrapper only offers a subset of the full C API, thus the C example is more complete than the C++ example. These examples were not designed with security in mind, but to show how the API can be used in principle. For more information, see the [documentation](https://github.com/civetweb/civetweb/tree/master/docs). Some examples can also be found in the [test](https://github.com/civetweb/civetweb/tree/master/test) folder (but they are less documented and adapted to the needs of the test framework). + +In addition, there is one example how to configure a HTTPS server, to comply with modern security standards ([https](https://github.com/civetweb/civetweb/tree/master/examples/https)). It does not hold any source, but only a configuration file and some documentation how to use it. + +Some no longer maintained examples can be found in the ["obsolete"](https://github.com/civetweb/civetweb/tree/master/examples/_obsolete) folder. It is not guaranteed that they work in the current version - they are kept for reference, but might be removed in the future. + +All examples are subject to the MIT license (unless noted otherwise) - they come without warranty of any kind. + diff --git a/src/civetweb/examples/_obsolete/chat/Makefile b/src/civetweb/examples/_obsolete/chat/Makefile new file mode 100644 index 000000000..e8d12be69 --- /dev/null +++ b/src/civetweb/examples/_obsolete/chat/Makefile @@ -0,0 +1,40 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = chat +SRC = chat.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a +SSL_CERT = ssl_cert.pem + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) $(SSL_CERT) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib + cp $(TOP)/$(CIVETWEB_LIB) . + +$(SSL_CERT): + cp $(TOP)/resources/$(SSL_CERT) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) $(SSL_CERT) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/chat/chat.c b/src/civetweb/examples/_obsolete/chat/chat.c new file mode 100644 index 000000000..ad146183b --- /dev/null +++ b/src/civetweb/examples/_obsolete/chat/chat.c @@ -0,0 +1,403 @@ +// This file is part of the Civetweb project, http://code.google.com/p/civetweb +// It implements an online chat server. For more details, +// see the documentation on the project web site. +// To test the application, +// 1. type "make" in the directory where this file lives +// 2. point your browser to http://127.0.0.1:8081 + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <time.h> +#include <stdarg.h> +#include <pthread.h> + +#include "civetweb.h" + +#define MAX_USER_LEN 20 +#define MAX_MESSAGE_LEN 100 +#define MAX_MESSAGES 5 +#define MAX_SESSIONS 2 +#define SESSION_TTL 120 + +static const char *authorize_url = "/authorize"; +static const char *login_url = "/login.html"; +static const char *ajax_reply_start = + "HTTP/1.1 200 OK\r\n" + "Cache: no-cache\r\n" + "Content-Type: application/x-javascript\r\n" + "\r\n"; + +// Describes single message sent to a chat. If user is empty (0 length), +// the message is then originated from the server itself. +struct message { + long id; // Message ID + char user[MAX_USER_LEN]; // User that have sent the message + char text[MAX_MESSAGE_LEN]; // Message text + time_t timestamp; // Message timestamp, UTC +}; + +// Describes web session. +struct session { + char session_id[33]; // Session ID, must be unique + char random[20]; // Random data used for extra user validation + char user[MAX_USER_LEN]; // Authenticated user + time_t expire; // Expiration timestamp, UTC +}; + +static struct message messages[MAX_MESSAGES]; // Ringbuffer for messages +static struct session sessions[MAX_SESSIONS]; // Current sessions +static long last_message_id; + +// Protects messages, sessions, last_message_id +static pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER; + +// Get session object for the connection. Caller must hold the lock. +static struct session *get_session(const struct mg_connection *conn) +{ + int i; + const char *cookie = mg_get_header(conn, "Cookie"); + char session_id[33]; + time_t now = time(NULL); + mg_get_cookie(cookie, "session", session_id, sizeof(session_id)); + for (i = 0; i < MAX_SESSIONS; i++) { + if (sessions[i].expire != 0 && + sessions[i].expire > now && + strcmp(sessions[i].session_id, session_id) == 0) { + break; + } + } + return i == MAX_SESSIONS ? NULL : &sessions[i]; +} + +static void get_qsvar(const struct mg_request_info *request_info, + const char *name, char *dst, size_t dst_len) +{ + const char *qs = request_info->query_string; + mg_get_var(qs, strlen(qs == NULL ? "" : qs), name, dst, dst_len); +} + +// Get a get of messages with IDs greater than last_id and transform them +// into a JSON string. Return that string to the caller. The string is +// dynamically allocated, caller must free it. If there are no messages, +// NULL is returned. +static char *messages_to_json(long last_id) +{ + const struct message *message; + int max_msgs, len; + char buf[sizeof(messages)]; // Large enough to hold all messages + + // Read-lock the ringbuffer. Loop over all messages, making a JSON string. + pthread_rwlock_rdlock(&rwlock); + len = 0; + max_msgs = sizeof(messages) / sizeof(messages[0]); + // If client is too far behind, return all messages. + if (last_message_id - last_id > max_msgs) { + last_id = last_message_id - max_msgs; + } + for (; last_id < last_message_id; last_id++) { + message = &messages[last_id % max_msgs]; + if (message->timestamp == 0) { + break; + } + // buf is allocated on stack and hopefully is large enough to hold all + // messages (it may be too small if the ringbuffer is full and all + // messages are large. in this case asserts will trigger). + len += snprintf(buf + len, sizeof(buf) - len, + "{user: '%s', text: '%s', timestamp: %lu, id: %ld},", + message->user, message->text, message->timestamp, message->id); + assert(len > 0); + assert((size_t) len < sizeof(buf)); + } + pthread_rwlock_unlock(&rwlock); + + return len == 0 ? NULL : strdup(buf); +} + +// If "callback" param is present in query string, this is JSONP call. +// Return 1 in this case, or 0 if "callback" is not specified. +// Wrap an output in Javascript function call. +static int handle_jsonp(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + char cb[64]; + + get_qsvar(request_info, "callback", cb, sizeof(cb)); + if (cb[0] != '\0') { + mg_printf(conn, "%s(", cb); + } + + return cb[0] == '\0' ? 0 : 1; +} + +// A handler for the /ajax/get_messages endpoint. +// Return a list of messages with ID greater than requested. +static void ajax_get_messages(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + char last_id[32], *json; + int is_jsonp; + + mg_printf(conn, "%s", ajax_reply_start); + is_jsonp = handle_jsonp(conn, request_info); + + get_qsvar(request_info, "last_id", last_id, sizeof(last_id)); + if ((json = messages_to_json(strtoul(last_id, NULL, 10))) != NULL) { + mg_printf(conn, "[%s]", json); + free(json); + } + + if (is_jsonp) { + mg_printf(conn, "%s", ")"); + } +} + +// Allocate new message. Caller must hold the lock. +static struct message *new_message(void) +{ + static int size = sizeof(messages) / sizeof(messages[0]); + struct message *message = &messages[last_message_id % size]; + message->id = last_message_id++; + message->timestamp = time(0); + return message; +} + +static void my_strlcpy(char *dst, const char *src, size_t len) +{ + strncpy(dst, src, len); + dst[len - 1] = '\0'; +} + +// A handler for the /ajax/send_message endpoint. +static void ajax_send_message(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + struct message *message; + struct session *session; + char text[sizeof(message->text) - 1]; + int is_jsonp; + + mg_printf(conn, "%s", ajax_reply_start); + is_jsonp = handle_jsonp(conn, request_info); + + get_qsvar(request_info, "text", text, sizeof(text)); + if (text[0] != '\0') { + // We have a message to store. Write-lock the ringbuffer, + // grab the next message and copy data into it. + pthread_rwlock_wrlock(&rwlock); + message = new_message(); + // TODO(lsm): JSON-encode all text strings + session = get_session(conn); + assert(session != NULL); + my_strlcpy(message->text, text, sizeof(text)); + my_strlcpy(message->user, session->user, sizeof(message->user)); + pthread_rwlock_unlock(&rwlock); + } + + mg_printf(conn, "%s", text[0] == '\0' ? "false" : "true"); + + if (is_jsonp) { + mg_printf(conn, "%s", ")"); + } +} + +// Redirect user to the login form. In the cookie, store the original URL +// we came from, so that after the authorization we could redirect back. +static void redirect_to_login(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + mg_printf(conn, "HTTP/1.1 302 Found\r\n" + "Set-Cookie: original_url=%s\r\n" + "Location: %s\r\n\r\n", + request_info->uri, login_url); +} + +// Return 1 if username/password is allowed, 0 otherwise. +static int check_password(const char *user, const char *password) +{ + // In production environment we should ask an authentication system + // to authenticate the user. + // Here however we do trivial check that user and password are not empty + return (user[0] && password[0]); +} + +// Allocate new session object +static struct session *new_session(void) +{ + int i; + time_t now = time(NULL); + pthread_rwlock_wrlock(&rwlock); + for (i = 0; i < MAX_SESSIONS; i++) { + if (sessions[i].expire == 0 || sessions[i].expire < now) { + sessions[i].expire = time(0) + SESSION_TTL; + break; + } + } + pthread_rwlock_unlock(&rwlock); + return i == MAX_SESSIONS ? NULL : &sessions[i]; +} + +// Generate session ID. buf must be 33 bytes in size. +// Note that it is easy to steal session cookies by sniffing traffic. +// This is why all communication must be SSL-ed. +static void generate_session_id(char *buf, const char *random, + const char *user) +{ + mg_md5(buf, random, user, NULL); +} + +static void send_server_message(const char *fmt, ...) +{ + va_list ap; + struct message *message; + + pthread_rwlock_wrlock(&rwlock); + message = new_message(); + message->user[0] = '\0'; // Empty user indicates server message + va_start(ap, fmt); + vsnprintf(message->text, sizeof(message->text), fmt, ap); + va_end(ap); + + pthread_rwlock_unlock(&rwlock); +} + +// A handler for the /authorize endpoint. +// Login page form sends user name and password to this endpoint. +static void authorize(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + char user[MAX_USER_LEN], password[MAX_USER_LEN]; + struct session *session; + + // Fetch user name and password. + get_qsvar(request_info, "user", user, sizeof(user)); + get_qsvar(request_info, "password", password, sizeof(password)); + + if (check_password(user, password) && (session = new_session()) != NULL) { + // Authentication success: + // 1. create new session + // 2. set session ID token in the cookie + // 3. remove original_url from the cookie - not needed anymore + // 4. redirect client back to the original URL + // + // The most secure way is to stay HTTPS all the time. However, just to + // show the technique, we redirect to HTTP after the successful + // authentication. The danger of doing this is that session cookie can + // be stolen and an attacker may impersonate the user. + // Secure application must use HTTPS all the time. + my_strlcpy(session->user, user, sizeof(session->user)); + snprintf(session->random, sizeof(session->random), "%d", rand()); + generate_session_id(session->session_id, session->random, session->user); + send_server_message("<%s> joined", session->user); + mg_printf(conn, "HTTP/1.1 302 Found\r\n" + "Set-Cookie: session=%s; max-age=3600; http-only\r\n" // Session ID + "Set-Cookie: user=%s\r\n" // Set user, needed by Javascript code + "Set-Cookie: original_url=/; max-age=0\r\n" // Delete original_url + "Location: /\r\n\r\n", + session->session_id, session->user); + } else { + // Authentication failure, redirect to login. + redirect_to_login(conn, request_info); + } +} + +// Return 1 if request is authorized, 0 otherwise. +static int is_authorized(const struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + struct session *session; + char valid_id[33]; + int authorized = 0; + + // Always authorize accesses to login page and to authorize URI + if (!strcmp(request_info->uri, login_url) || + !strcmp(request_info->uri, authorize_url)) { + return 1; + } + + pthread_rwlock_rdlock(&rwlock); + if ((session = get_session(conn)) != NULL) { + generate_session_id(valid_id, session->random, session->user); + if (strcmp(valid_id, session->session_id) == 0) { + session->expire = time(0) + SESSION_TTL; + authorized = 1; + } + } + pthread_rwlock_unlock(&rwlock); + + return authorized; +} + +static void redirect_to_ssl(struct mg_connection *conn, + const struct mg_request_info *request_info) +{ + const char *p, *host = mg_get_header(conn, "Host"); + if (host != NULL && (p = strchr(host, ':')) != NULL) { + mg_printf(conn, "HTTP/1.1 302 Found\r\n" + "Location: https://%.*s:8082/%s:8082\r\n\r\n", + (int) (p - host), host, request_info->uri); + } else { + mg_printf(conn, "%s", "HTTP/1.1 500 Error\r\n\r\nHost: header is not set"); + } +} + +static int begin_request_handler(struct mg_connection *conn) +{ + const struct mg_request_info *request_info = mg_get_request_info(conn); + int processed = 1; + + if (!request_info->is_ssl) { + redirect_to_ssl(conn, request_info); + } else if (!is_authorized(conn, request_info)) { + redirect_to_login(conn, request_info); + } else if (strcmp(request_info->uri, authorize_url) == 0) { + authorize(conn, request_info); + } else if (strcmp(request_info->uri, "/ajax/get_messages") == 0) { + ajax_get_messages(conn, request_info); + } else if (strcmp(request_info->uri, "/ajax/send_message") == 0) { + ajax_send_message(conn, request_info); + } else { + // No suitable handler found, mark as not processed. Civetweb will + // try to serve the request. + processed = 0; + } + return processed; +} + +static const char *options[] = { + "document_root", "html", + "listening_ports", "8081,8082s", + "ssl_certificate", "ssl_cert.pem", + "num_threads", "5", + NULL +}; + +int main(void) +{ + struct mg_callbacks callbacks; + struct mg_context *ctx; + + // Initialize random number generator. It will be used later on for + // the session identifier creation. + srand((unsigned) time(0)); + + // Setup and start Civetweb + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.begin_request = begin_request_handler; + if ((ctx = mg_start(&callbacks, NULL, options)) == NULL) { + printf("%s\n", "Cannot start chat server, fatal exit"); + exit(EXIT_FAILURE); + } + + // Wait until enter is pressed, then exit + printf("Chat server started on ports %s, press enter to quit.\n", + mg_get_option(ctx, "listening_ports")); + getchar(); + mg_stop(ctx); + printf("%s\n", "Chat server stopped."); + + return EXIT_SUCCESS; +} + +// vim:ts=2:sw=2:et diff --git a/src/civetweb/examples/_obsolete/docroot/favicon.ico b/src/civetweb/examples/_obsolete/docroot/favicon.ico Binary files differnew file mode 100644 index 000000000..2179aba89 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/favicon.ico diff --git a/src/civetweb/examples/_obsolete/docroot/index.html b/src/civetweb/examples/_obsolete/docroot/index.html new file mode 100644 index 000000000..c85bec992 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/index.html @@ -0,0 +1,73 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr"> + <!-- This file is part of the Civetweb project, + http://sourceforge.net/projects/civetweb/ --> + <head> + <title>Civetweb chat server</title> + <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> + <link type="text/css" rel="stylesheet" href="style.css"/> + <script src="jquery.js"></script> + <script src="main.js"></script> + </head> + + <body> + <div id="header"> + <div id="logo"></div> + <div class="rounded infobox help-message" id="motd"> + Chat room implemented using + <a href="http://sourceforge.net/projects/civetweb/" target="_blank">Civetweb</a> + embeddable web server. + This application was written for educational purposes demonstrating + how web interface could be decoupled from the business logic. Not a + single line of HTML is generated by the server, instead, server + gives data to the client in JSON format. + </div> + </div> + <div> + + <div id="middle"> + <div><center><span id="error" class="rounded"></span><center></div> + + <div id="menu"> + <div class="menu-item left-rounded menu-item-selected" + name="chat">Chat</div> + <div class="menu-item left-rounded" name="settings">Settings</div> + </div> + + <div id="content" class="rounded"> + + <div id="chat" class="main"> + <div class="chat-window"> + <span class="top-rounded chat-title">Main room</span> + <div class="bottom-rounded chat-content"> + <div class="message-list" id="mml"> + </div> + <input type="text" size="40" class="message-input"></input> + <span class="help-message"> + Type your message here and press enter</span> + </div> + </div> + </div> + + <div id="settings" class="hidden main"> + <div> + <span class="top-rounded chat-title">Settings</span> + <div class="bottom-rounded chat-content"> + <table> + <tr><td>Max messages to display:</td><td>blah blah</td></tr> + <tr><td>Text color:</td><td>blah blah</td></tr> + </table> + </div> + </div> + </div> + + </div> + </div> + + <div id="footer"> + Copyright © 2004-2010 by Sergey Lyubka + </div> + + </body> +</html> diff --git a/src/civetweb/examples/_obsolete/docroot/jquery.js b/src/civetweb/examples/_obsolete/docroot/jquery.js new file mode 100644 index 000000000..7c2430802 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/jquery.js @@ -0,0 +1,154 @@ +/*! + * jQuery JavaScript Library v1.4.2 + * http://jquery.com/ + * + * Copyright 2010, John Resig + * Dual licensed under the MIT or GPL Version 2 licenses. + * http://jquery.org/license + * + * Includes Sizzle.js + * http://sizzlejs.com/ + * Copyright 2010, The Dojo Foundation + * Released under the MIT, BSD, and GPL Licenses. + * + * Date: Sat Feb 13 22:33:48 2010 -0500 + */ +(function(A,w){function ma(){if(!c.isReady){try{s.documentElement.doScroll("left")}catch(a){setTimeout(ma,1);return}c.ready()}}function Qa(a,b){b.src?c.ajax({url:b.src,async:false,dataType:"script"}):c.globalEval(b.text||b.textContent||b.innerHTML||"");b.parentNode&&b.parentNode.removeChild(b)}function X(a,b,d,f,e,j){var i=a.length;if(typeof b==="object"){for(var o in b)X(a,o,b[o],f,e,d);return a}if(d!==w){f=!j&&f&&c.isFunction(d);for(o=0;o<i;o++)e(a[o],b,f?d.call(a[o],o,e(a[o],b)):d,j);return a}return i? 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f==="string"?f:f+"px")}});A.jQuery=A.$=c})(window); diff --git a/src/civetweb/examples/_obsolete/docroot/login.html b/src/civetweb/examples/_obsolete/docroot/login.html new file mode 100644 index 000000000..2b09f01c5 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/login.html @@ -0,0 +1,43 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" + "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr"> + <!-- This file is part of the Civetweb project, + http://sourceforge.net/projects/civetweb/ --> + <head> + <title>Civetweb chat: login</title> + <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/> + <!-- + Note that this page is self-sufficient, it does not load any other + CSS or Javascript file. This is done so because only this page is + allowed for non-authorized users. If we want to load other files + from the frontend, we need to change backend code to allow those + for non-authorized users. See chat.c :: must_authorize() function. + --> + </head> + + <script> + window.onload = function() { + // Set correct action for the login form. We assume that the SSL port + // is the next one to insecure one. + var httpsPort = location.protocol.match(/https/) ? location.port : + parseInt(location.port) + 1; + document.forms[0].action = 'https://' + location.hostname + ':' + + httpsPort + '/authorize'; + }; + </script> + + <body> + <center> + <h2>Civetweb chat server login</h2> + <div style="max-width: 30em;"> + Username and password can be any non-empty strings. + </div> + <br/> + <form> + <input type="text" name="user"></input><br/> + <input type="text" name="password"></input><br/> + <input type="submit" value="Login"></input> + </form> + </center> + </body> +</html> diff --git a/src/civetweb/examples/_obsolete/docroot/logo.png b/src/civetweb/examples/_obsolete/docroot/logo.png Binary files differnew file mode 100644 index 000000000..8a47c0ab8 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/logo.png diff --git a/src/civetweb/examples/_obsolete/docroot/main.js b/src/civetweb/examples/_obsolete/docroot/main.js new file mode 100644 index 000000000..d4af86ddb --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/main.js @@ -0,0 +1,107 @@ +// This file is part of Civetweb project, +// http://sourceforge.net/projects/civetweb/ + +var chat = { + // Backend URL, string. + // 'http://backend.address.com' or '' if backend is the same as frontend + backendUrl: '', + maxVisibleMessages: 10, + errorMessageFadeOutTimeoutMs: 2000, + errorMessageFadeOutTimer: null, + lastMessageId: 0, + getMessagesIntervalMs: 1000, +}; + +chat.normalizeText = function(text) { + return text.replace('<', '<').replace('>', '>'); +}; + +chat.refresh = function(data) { + + if (data === undefined) { + return; + } + + $.each(data, function(index, entry) { + var row = $('<div>').addClass('message-row').appendTo('#mml'); + var timestamp = (new Date(entry.timestamp * 1000)).toLocaleTimeString(); + $('<span>') + .addClass('message-timestamp') + .html('[' + timestamp + ']') + .prependTo(row); + $('<span>') + .addClass('message-user') + .addClass(entry.user ? '' : 'message-user-server') + .html(chat.normalizeText((entry.user || '[server]') + ':')) + .appendTo(row); + $('<span>') + .addClass('message-text') + .addClass(entry.user ? '' : 'message-text-server') + .html(chat.normalizeText(entry.text)) + .appendTo(row); + chat.lastMessageId = Math.max(chat.lastMessageId, entry.id) + 1; + }); + + // Keep only chat.maxVisibleMessages, delete older ones. + while ($('#mml').children().length > chat.maxVisibleMessages) { + $('#mml div:first-child').remove(); + } +}; + +chat.getMessages = function(enter_loop) { + $.ajax({ + dataType: 'jsonp', + url: chat.backendUrl + '/ajax/get_messages', + data: {last_id: chat.lastMessageId}, + success: chat.refresh, + error: function() { + }, + }); + if (enter_loop) { + window.setTimeout('chat.getMessages(true)', chat.getMessagesIntervalMs); + } +}; + +chat.handleMenuItemClick = function(ev) { + $('.menu-item').removeClass('menu-item-selected'); // Deselect menu buttons + $(this).addClass('menu-item-selected'); // Select clicked button + $('.main').addClass('hidden'); // Hide all main windows + $('#' + $(this).attr('name')).removeClass('hidden'); // Show main window +}; + +chat.showError = function(message) { + $('#error').html(message).fadeIn('fast'); + window.clearTimeout(chat.errorMessageFadeOutTimer); + chat.errorMessageFadeOutTimer = window.setTimeout(function() { + $('#error').fadeOut('slow'); + }, chat.errorMessageFadeOutTimeoutMs); +}; + +chat.handleMessageInput = function(ev) { + var input = ev.target; + if (ev.keyCode != 13 || !input.value) + return; + //input.disabled = true; + $.ajax({ + dataType: 'jsonp', + url: chat.backendUrl + '/ajax/send_message', + data: {text: input.value}, + success: function(ev) { + input.value = ''; + input.disabled = false; + chat.getMessages(false); + }, + error: function(ev) { + chat.showError('Error sending message'); + input.disabled = false; + }, + }); +}; + +$(document).ready(function() { + $('.menu-item').click(chat.handleMenuItemClick); + $('.message-input').keypress(chat.handleMessageInput); + chat.getMessages(true); +}); + +// vim:ts=2:sw=2:et diff --git a/src/civetweb/examples/_obsolete/docroot/prime_numbers.lp b/src/civetweb/examples/_obsolete/docroot/prime_numbers.lp new file mode 100644 index 000000000..0c71bb824 --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/prime_numbers.lp @@ -0,0 +1,46 @@ +HTTP/1.0 200 OK +Content-Type: text/html + +<html> + <p>Prime numbers from 0 to 100, calculated by Lua:</p> + <? + function is_prime(n) + if n <= 0 then return false end + if n <= 2 then return true end + if (n % 2 == 0) then return false end + for i = 3, n / 2, 2 do + if (n % i == 0) then return false end + end + return true + end + + for i = 1, 100 do + if is_prime(i) then mg.write('<span>' .. i .. '</span> ') end + end + + ?> + + <p>Reading POST data from Lua (click submit):</p> + <form method="POST" ><input type="text" name="t1"/><input type="submit"></form> + + <pre> + POST data: [<? + local post_data = '' + if mg.request_info.request_method == 'POST' then + post_data = mg.read() + end + mg.write(post_data) + ?>] + request method: [<? mg.write(mg.request_info.request_method) ?>] + IP/port: [<? mg.write(mg.request_info.remote_ip, ':', + mg.request_info.remote_port) ?>] + URI: [<? mg.write(mg.request_info.uri) ?>] + HTTP version [<? mg.write(mg.request_info.http_version) ?>] + HEADERS: + <? + for name, value in pairs(mg.request_info.http_headers) do + mg.write(name, ':', value, '\n') + end + ?> +</pre> +</html> diff --git a/src/civetweb/examples/_obsolete/docroot/style.css b/src/civetweb/examples/_obsolete/docroot/style.css new file mode 100644 index 000000000..716351d2d --- /dev/null +++ b/src/civetweb/examples/_obsolete/docroot/style.css @@ -0,0 +1,154 @@ +/* + * vim:ts=2:sw=2:et:ai + */ + +body { + font: 13px Arial; margin: 0.5em 1em; +} + +#logo { + background: url('logo.png') no-repeat ; + width: 160px; + height: 40px; + float: left; +} + +td { + text-align: left; +} + +#motd { + margin-left: 170px; +} + +.infobox { + background: #eed; + padding: 1px 1em; +} + +.help-message { + color: #aaa; +} + +#middle { + margin: 0.5em 0; +} + +#error { + background: #c44; + color: white; + font-weight: bold; +} + +#content, .menu-item-selected, .chat-title, .chat-content { + background: #c3d9ff; +} + +#content { + overflow: hidden; + min-height: 7em; + padding: 1em; +} + +.chat-title { + padding: 1px 1ex; +} + +.chat-content { + padding: 1ex; +} + +.chat-window { +} + +.message-row { + margin: 2px; + border-bottom: 1px solid #bbb; +} + +.message-timestamp { + color: #484; +} + +.message-user { + margin-left: 0.5em; + font-weight: bold; +} + +.message-text { + margin-left: 0.5em; +} + +.message-user-server { + color: purple; +} + +.message-text-server { + font-style: italic; +} + +.main { + padding: 0.5em; + background: #f0fcff; +} + +#menu { + margin-top: 1em; + min-width: 7em; + float: left; +} + +#footer { + position: fixed; + bottom: 0; + right: 0; + color: #ccc; + padding: 0.5em; +} + +.section { + clear: both; +} + +.hidden { + display: none; +} + +.menu-item { + cursor: pointer; + padding: 0.1em 0.5em; +} + +.menu-item-selected { + font-weight: bold; +} + +.message-list { + min-height: 1em; + background: white; + margin: 0.5em 0; +} + +.rounded { + border-radius: 6px; + -moz-border-radius: 6px; + -webkit-border-radius: 6px; +} + +.left-rounded { + border-radius: 6px 0 0 6px; + -moz-border-radius: 6px 0 0 6px; + -webkit-border-radius: 6px 0 0 6px; +} + +.bottom-rounded { + border-radius: 0 0 6px 6px; + -moz-border-radius: 0 0 6px 6px; + -webkit-border-radius: 0 0 6px 6px; +} + +.top-rounded { + border-radius: 6px 6px 0 0; + -moz-border-radius: 6px 6px 0 0; + -webkit-border-radius: 6px 6px 0 0; +} diff --git a/src/civetweb/examples/_obsolete/hello/Makefile b/src/civetweb/examples/_obsolete/hello/Makefile new file mode 100644 index 000000000..4424e3b58 --- /dev/null +++ b/src/civetweb/examples/_obsolete/hello/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = hello +SRC = hello.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/hello/hello.c b/src/civetweb/examples/_obsolete/hello/hello.c new file mode 100644 index 000000000..39253c1ad --- /dev/null +++ b/src/civetweb/examples/_obsolete/hello/hello.c @@ -0,0 +1,53 @@ +#include <stdio.h> +#include <string.h> +#include "civetweb.h" + +// This function will be called by civetweb on every new request. +static int begin_request_handler(struct mg_connection *conn) +{ + const struct mg_request_info *request_info = mg_get_request_info(conn); + char content[100]; + + // Prepare the message we're going to send + int content_length = snprintf(content, sizeof(content), + "Hello from civetweb! Remote port: %d", + request_info->remote_port); + + // Send HTTP reply to the client + mg_printf(conn, + "HTTP/1.1 200 OK\r\n" + "Content-Type: text/plain\r\n" + "Content-Length: %d\r\n" // Always set Content-Length + "\r\n" + "%s", + content_length, content); + + // Returning non-zero tells civetweb that our function has replied to + // the client, and civetweb should not send client any more data. + return 1; +} + +int main(void) +{ + struct mg_context *ctx; + struct mg_callbacks callbacks; + + // List of options. Last element must be NULL. + const char *options[] = {"listening_ports", "8080", NULL}; + + // Prepare callbacks structure. We have only one callback, the rest are NULL. + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.begin_request = begin_request_handler; + + // Start the web server. + ctx = mg_start(&callbacks, NULL, options); + + // Wait until user hits "enter". Server is running in separate thread. + // Navigating to http://localhost:8080 will invoke begin_request_handler(). + getchar(); + + // Stop the server. + mg_stop(ctx); + + return 0; +} diff --git a/src/civetweb/examples/_obsolete/lua/lua_dll.c b/src/civetweb/examples/_obsolete/lua/lua_dll.c new file mode 100644 index 000000000..79e6b97c0 --- /dev/null +++ b/src/civetweb/examples/_obsolete/lua/lua_dll.c @@ -0,0 +1,21 @@ +#include <stdio.h> + +#include "lua.h" +#include "lauxlib.h" + +static int smile(lua_State *L) +{ + (void) L; // Unused + printf("%s\n", ":-)"); + return 0; +} + +int LUA_API luaopen_lua_dll(lua_State *L) +{ + static const struct luaL_Reg api[] = { + {"smile", smile}, + {NULL, NULL}, + }; + luaL_openlib(L, "lua_dll", api, 0); + return 1; +} diff --git a/src/civetweb/examples/_obsolete/post/Makefile b/src/civetweb/examples/_obsolete/post/Makefile new file mode 100644 index 000000000..6e504f437 --- /dev/null +++ b/src/civetweb/examples/_obsolete/post/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = post +SRC = post.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/post/post.c b/src/civetweb/examples/_obsolete/post/post.c new file mode 100644 index 000000000..3c5c68c8d --- /dev/null +++ b/src/civetweb/examples/_obsolete/post/post.c @@ -0,0 +1,58 @@ +#include <stdio.h> +#include <string.h> +#include "civetweb.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 int begin_request_handler(struct mg_connection *conn) +{ + const struct mg_request_info *ri = mg_get_request_info(conn); + char post_data[1024], input1[sizeof(post_data)], input2[sizeof(post_data)]; + int post_data_len; + + if (!strcmp(ri->uri, "/handle_post_request")) { + // User has submitted a form, show submitted data and a variable value + post_data_len = mg_read(conn, post_data, sizeof(post_data)); + + // Parse form data. input1 and input2 are guaranteed to be NUL-terminated + mg_get_var(post_data, post_data_len, "input_1", input1, sizeof(input1)); + mg_get_var(post_data, post_data_len, "input_2", input2, sizeof(input2)); + + // Send reply to the client, showing submitted form values. + mg_printf(conn, "HTTP/1.0 200 OK\r\n" + "Content-Type: text/plain\r\n\r\n" + "Submitted data: [%.*s]\n" + "Submitted data length: %d bytes\n" + "input_1: [%s]\n" + "input_2: [%s]\n", + post_data_len, post_data, post_data_len, input1, input2); + } else { + // Show HTML form. + mg_printf(conn, "HTTP/1.0 200 OK\r\n" + "Content-Length: %d\r\n" + "Content-Type: text/html\r\n\r\n%s", + (int) strlen(html_form), html_form); + } + return 1; // Mark request as processed +} + +int main(void) +{ + struct mg_context *ctx; + const char *options[] = {"listening_ports", "8080", NULL}; + struct mg_callbacks callbacks; + + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.begin_request = begin_request_handler; + ctx = mg_start(&callbacks, NULL, options); + getchar(); // Wait until user hits "enter" + mg_stop(ctx); + + return 0; +} diff --git a/src/civetweb/examples/_obsolete/upload/Makefile b/src/civetweb/examples/_obsolete/upload/Makefile new file mode 100644 index 000000000..9c6270fb2 --- /dev/null +++ b/src/civetweb/examples/_obsolete/upload/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = upload +SRC = upload.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/upload/upload.c b/src/civetweb/examples/_obsolete/upload/upload.c new file mode 100644 index 000000000..56c4be4f3 --- /dev/null +++ b/src/civetweb/examples/_obsolete/upload/upload.c @@ -0,0 +1,110 @@ +/* Copyright (c) 2014 the Civetweb developers + * Copyright (c) 2004-2012 Sergey Lyubka + * This file is a part of civetweb project, http://github.com/bel2125/civetweb + */ + +/* This example is deprecated and no longer maintained. + * All relevant parts have been merged into the embedded_c example. */ + + +#ifdef _WIN32 +#ifndef _CRT_SECURE_NO_WARNINGS +#define _CRT_SECURE_NO_WARNINGS +#endif +#include <windows.h> +#include <io.h> +#define strtoll strtol +typedef __int64 int64_t; +#else +#include <inttypes.h> +#include <unistd.h> +#endif /* !_WIN32 */ + +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <stdlib.h> + +#include "civetweb.h" + + +/* callback: used to generate all content */ +static int begin_request_handler(struct mg_connection *conn) +{ + const char * tempPath = "."; +#ifdef _WIN32 + const char * env = getenv("TEMP"); + if (!env) env = getenv("TMP"); + if (env) tempPath = env; +#else + tempPath = "/tmp"; +#endif + + if (!strcmp(mg_get_request_info(conn)->uri, "/handle_post_request")) { + + mg_printf(conn, "%s", "HTTP/1.0 200 OK\r\n\r\n"); + mg_upload(conn, tempPath); + } else { + /* Show HTML form. */ + /* See http://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1 */ + static const char *html_form = + "<html><body>Upload example." + "" + /* enctype="multipart/form-data" */ + "<form method=\"POST\" action=\"/handle_post_request\" " + " enctype=\"multipart/form-data\">" + "<input type=\"file\" name=\"file\" /> <br/>" + "<input type=\"file\" name=\"file2\" /> <br/>" + "<input type=\"submit\" value=\"Upload\" />" + "</form>" + "" + "</body></html>"; + + mg_printf(conn, "HTTP/1.0 200 OK\r\n" + "Content-Length: %d\r\n" + "Content-Type: text/html\r\n\r\n%s", + (int) strlen(html_form), html_form); + } + + /* Mark request as processed */ + return 1; +} + + +/* callback: called after uploading a file is completed */ +static void upload_handler(struct mg_connection *conn, const char *path) +{ + mg_printf(conn, "Saved [%s]", path); +} + + +/* Main program: Set callbacks and start the server. */ +int main(void) +{ + /* Test server will use this port */ + const char * PORT = "8080"; + + /* Startup options for the server */ + struct mg_context *ctx; + const char *options[] = { + "listening_ports", PORT, + NULL}; + struct mg_callbacks callbacks; + + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.begin_request = begin_request_handler; + callbacks.upload = upload_handler; + + /* Display a welcome message */ + printf("File upload demo.\n"); + printf("Open http://localhost:%s/ in your browser.\n\n", PORT); + + /* Start the server */ + ctx = mg_start(&callbacks, NULL, options); + + /* Wait until thr user hits "enter", then stop the server */ + getchar(); + mg_stop(ctx); + + return 0; +} diff --git a/src/civetweb/examples/_obsolete/websocket/Makefile b/src/civetweb/examples/_obsolete/websocket/Makefile new file mode 100644 index 000000000..3d6549297 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = websocket +SRC = WebSockCallbacks.c websocket.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib WITH_WEBSOCKET=1 + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.c b/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.c new file mode 100644 index 000000000..bb81fb0cc --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.c @@ -0,0 +1,225 @@ +/* This example uses deprecated interfaces: global websocket callbacks. + They have been superseeded by URI specific callbacks. + See examples/embedded_c for an up to date example. + */ + +#include <assert.h> +#include <stdlib.h> +#include <time.h> +#include <string.h> +#include "WebSockCallbacks.h" + +#ifdef _WIN32 +#include <windows.h> +#define mg_sleep(x) Sleep(x) +#else +#include <unistd.h> +#include <pthread.h> +#define mg_sleep(x) usleep((x)*1000) +#endif + + +static void +send_to_all_websockets(struct mg_context *ctx, const char *data, int data_len) +{ + + int i; + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + + mg_lock_context(ctx); + for (i = 0; i < MAX_NUM_OF_WEBSOCKS; i++) { + if (ws_ctx->socketList[i] + && (ws_ctx->socketList[i]->webSockState == 2)) { + mg_websocket_write(ws_ctx->socketList[i]->conn, + WEBSOCKET_OPCODE_TEXT, + data, + data_len); + } + } + mg_unlock_context(ctx); +} + + +void +websocket_ready_handler(struct mg_connection *conn, void *_ignored) +{ + + int i; + const struct mg_request_info *rq = mg_get_request_info(conn); + struct mg_context *ctx = mg_get_context(conn); + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + tWebSockInfo *wsock = malloc(sizeof(tWebSockInfo)); + assert(wsock); + wsock->webSockState = 0; + mg_set_user_connection_data(conn, wsock); + + mg_lock_context(ctx); + for (i = 0; i < MAX_NUM_OF_WEBSOCKS; i++) { + if (0 == ws_ctx->socketList[i]) { + ws_ctx->socketList[i] = wsock; + wsock->conn = conn; + wsock->webSockState = 1; + break; + } + } + printf("\nNew websocket attached: %s:%u\n", + rq->remote_addr, + rq->remote_port); + mg_unlock_context(ctx); +} + + +static void +websocket_done(tWebSockContext *ws_ctx, tWebSockInfo *wsock) +{ + + int i; + + if (wsock) { + wsock->webSockState = 99; + for (i = 0; i < MAX_NUM_OF_WEBSOCKS; i++) { + if (wsock == ws_ctx->socketList[i]) { + ws_ctx->socketList[i] = 0; + break; + } + } + printf("\nClose websocket attached: %s:%u\n", + mg_get_request_info(wsock->conn)->remote_addr, + mg_get_request_info(wsock->conn)->remote_port); + free(wsock); + } +} + + +int +websocket_data_handler(struct mg_connection *conn, + int flags, + char *data, + size_t data_len, + void *_ignored) +{ + + const struct mg_request_info *rq = mg_get_request_info(conn); + tWebSockInfo *wsock = (tWebSockInfo *)rq->conn_data; + struct mg_context *ctx = mg_get_context(conn); + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + char msg[128]; + + mg_lock_context(ctx); + if (flags == 136) { + // close websock + websocket_done(ws_ctx, wsock); + mg_set_user_connection_data(conn, NULL); + mg_unlock_context(ctx); + return 1; + } + if (((data_len >= 5) && (data_len < 100) && (flags == 129)) + || (flags == 130)) { + + // init command + if ((wsock->webSockState == 1) && (!memcmp(data, "init ", 5))) { + char *chk; + unsigned long gid; + memcpy(msg, data + 5, data_len - 5); + msg[data_len - 5] = 0; + gid = strtoul(msg, &chk, 10); + wsock->initId = gid; + if (gid > 0 && chk != NULL && *chk == 0) { + wsock->webSockState = 2; + } + mg_unlock_context(ctx); + return 1; + } + + // chat message + if ((wsock->webSockState == 2) && (!memcmp(data, "msg ", 4))) { + send_to_all_websockets(ctx, data, data_len); + mg_unlock_context(ctx); + return 1; + } + } + + // keep alive + if ((data_len == 4) && !memcmp(data, "ping", 4)) { + mg_unlock_context(ctx); + return 1; + } + + mg_unlock_context(ctx); + return 0; +} + + +void +connection_close_handler(const struct mg_connection *conn, void *_ignored) +{ + + const struct mg_request_info *rq = mg_get_request_info(conn); + tWebSockInfo *wsock = (tWebSockInfo *)rq->conn_data; + struct mg_context *ctx = mg_get_context(conn); + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + + mg_lock_context(ctx); + websocket_done(ws_ctx, wsock); + mg_set_user_connection_data(conn, NULL); + mg_unlock_context(ctx); +} + + +static void * +eventMain(void *arg) +{ + + char msg[256]; + struct mg_context *ctx = (struct mg_context *)arg; + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + + ws_ctx->runLoop = 1; + while (ws_ctx->runLoop) { + time_t t = time(0); + struct tm *timestr = localtime(&t); + strftime(msg, sizeof(msg), "title %c", timestr); + send_to_all_websockets(ctx, msg, strlen(msg)); + + mg_sleep(1000); + } + + return NULL; +} + + +void +websock_send_broadcast(struct mg_context *ctx, const char *data, int data_len) +{ + + char buffer[260]; + + if (data_len <= 256) { + strcpy(buffer, "msg "); + memcpy(buffer + 4, data, data_len); + + send_to_all_websockets(ctx, buffer, data_len + 4); + } +} + + +void +websock_init_lib(const struct mg_context *ctx) +{ + + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + memset(ws_ctx, 0, sizeof(*ws_ctx)); + /* todo: use mg_start_thread_id instead of mg_start_thread */ + mg_start_thread(eventMain, (void *)ctx); +} + + +void +websock_exit_lib(const struct mg_context *ctx) +{ + + tWebSockContext *ws_ctx = (tWebSockContext *)mg_get_user_data(ctx); + ws_ctx->runLoop = 0; + /* todo: wait for the thread instead of a timeout */ + mg_sleep(2000); +} diff --git a/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.h b/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.h new file mode 100644 index 000000000..f44821daf --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket/WebSockCallbacks.h @@ -0,0 +1,44 @@ + +#ifndef WEBSOCKCALLBACKS_H_INCLUDED +#define WEBSOCKCALLBACKS_H_INCLUDED + +#include "civetweb.h" + +#ifdef __cplusplus +extern "C" { +#endif + +typedef struct tWebSockInfo { + int webSockState; + unsigned long initId; + struct mg_connection *conn; +} tWebSockInfo; + +#define MAX_NUM_OF_WEBSOCKS (256) +typedef struct tWebSockContext { + int runLoop; + void *thread_id; + tWebSockInfo *socketList[MAX_NUM_OF_WEBSOCKS]; +} tWebSockContext; + + +void websock_init_lib(const struct mg_context *ctx); +void websock_exit_lib(const struct mg_context *ctx); + +void +websock_send_broadcast(struct mg_context *ctx, const char *data, int data_len); + +void websocket_ready_handler(struct mg_connection *conn, void *_ignored); +int websocket_data_handler(struct mg_connection *conn, + int flags, + char *data, + size_t data_len, + void *_ignored); +void connection_close_handler(const struct mg_connection *conn, void *_ignored); + + +#ifdef __cplusplus +} +#endif + +#endif
\ No newline at end of file diff --git a/src/civetweb/examples/_obsolete/websocket/websock.htm b/src/civetweb/examples/_obsolete/websocket/websock.htm new file mode 100644 index 000000000..4ff3a5fae --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket/websock.htm @@ -0,0 +1,55 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+<head>
+ <title>Test</title>
+ <script type='text/javascript' language="javascript">
+ <!--
+ var connection;
+ var keepAlive = false;
+
+ function webSockKeepAlive() {
+ if (keepAlive) {
+ connection.send('ping'); // Send the message 'ping' to the server
+ setTimeout("webSockKeepAlive()", 10000);
+ }
+ }
+
+ function load() {
+ connection = new WebSocket("ws://127.0.0.1/MyWebSock");
+
+ connection.onopen = function () {
+ var send = "init " + Math.round(Math.random()*4294967294+1);
+ console.log('Client: ' + send);
+ connection.send(send);
+ keepAlive = true;
+ webSockKeepAlive();
+ };
+
+ connection.onerror = function (error) {
+ keepAlive = false;
+ connection.close();
+ console.log('WebSocket error: ' + error);
+ alert("WebSocket error");
+ };
+
+ connection.onmessage = function (e) {
+ console.log('Server: ' + e.data);
+ if (e.data.substring(0,5) == "title") {window.document.title = e.data.substring(6);}
+ else if (e.data.substring(0,3) == "msg") {
+ var msgStr = document.getElementById('msg');
+ msgStr.innerHTML = msgStr.innerHTML + e.data.substring(4);
+ }
+ };
+ }
+ //-->
+ </script>
+
+</head>
+<body onload="load()">
+ <input type="button" onclick="connection.send('msg A');" value="A"></button>
+ <input type="button" onclick="connection.send('msg B');" value="B"></button>
+ <input type="button" onclick="connection.send('msg C');" value="C"></button>
+ <input type="button" onclick="connection.send('msg D');" value="D"></button>
+ <b id="msg"></b>
+</body>
+</html>
\ No newline at end of file diff --git a/src/civetweb/examples/_obsolete/websocket/websocket.c b/src/civetweb/examples/_obsolete/websocket/websocket.c new file mode 100644 index 000000000..3aadf98b8 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket/websocket.c @@ -0,0 +1,65 @@ +/* This example uses deprecated interfaces: global websocket callbacks. + They have been superseeded by URI specific callbacks. + See examples/embedded_c for an up to date example. + */ + +#include <stdio.h> +#include <ctype.h> +#include <string.h> + +#include "civetweb.h" +#include "WebSockCallbacks.h" + +int +main(void) +{ + struct mg_context *ctx = 0; + struct mg_callbacks callback_funcs = {0}; + tWebSockContext ws_ctx; + char inbuf[4]; + + const char *server_options[] = { + /* document_root: The path to the test function websock.htm */ + "document_root", + "../../examples/websocket", + + /* port: use http standard to match websocket url in websock.htm: + ws://127.0.0.1/MyWebSock */ + /* if the port is changed here, it needs to be changed in + websock.htm as well */ + "listening_ports", + "80", + + NULL}; + + callback_funcs.init_context = websock_init_lib; + callback_funcs.exit_context = websock_exit_lib; + + ctx = mg_start(&callback_funcs, &ws_ctx, server_options); + + mg_set_websocket_handler(ctx, + "/MyWebSock", + NULL, + websocket_ready_handler, + websocket_data_handler, + connection_close_handler, + NULL); + + printf("Connect to localhost:%s/websock.htm\n", + mg_get_option(ctx, "listening_ports")); + + puts("Enter an (ASCII) character or * to exit:"); + for (;;) { + fgets(inbuf, sizeof(inbuf), stdin); + + if (inbuf[0] == '*') { + break; + } + inbuf[0] = toupper(inbuf[0]); + websock_send_broadcast(ctx, inbuf, 1); + } + + mg_stop(ctx); + + return 0; +} diff --git a/src/civetweb/examples/_obsolete/websocket_client/Makefile b/src/civetweb/examples/_obsolete/websocket_client/Makefile new file mode 100644 index 000000000..e3ef13468 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/Makefile @@ -0,0 +1,37 @@ +# +# Copyright (c) 2014 Jordan Shelley +# https://github.com/jshelley +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = websocket_client +SRC = websocket_client.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib WITH_WEBSOCKET=1 + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/websocket_client/ssl/server.crt b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.crt new file mode 100644 index 000000000..a26359abf --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.crt @@ -0,0 +1,13 @@ +-----BEGIN CERTIFICATE----- +MIICATCCAWoCCQC2BCIqIvgSUTANBgkqhkiG9w0BAQUFADBFMQswCQYDVQQGEwJB +VTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0 +cyBQdHkgTHRkMB4XDTE0MDgyMTEyMzAwMVoXDTI0MDgxODEyMzAwMVowRTELMAkG +A1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0 +IFdpZGdpdHMgUHR5IEx0ZDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA9k9s +gH22BCo9neTeB/YnilK7n0sMe0+pjS9KSWhU59Q4w8hqPrW0tuYikIDd0wVggkJF +BZNg4WPoulTdwXsgNBeG88q2wnNtUosXTS+KQTQBSiQof9Ay9GHQtgxnogI1zIXb +HOppyyG5zre8a/X6fzDOnFc4iJMBwxTAnjCqObkCAwEAATANBgkqhkiG9w0BAQUF +AAOBgQBX9V46VUVsB9P9fb8sFuMx2ezFE42ynEeJPrKRrof+dFYbjvR1OUZFSLCy +aZKwVH7iCnVBJiU12JxO7PR3L6ob3FYPyNHQWYq1/IFUvqBRagehldj5H8iFeEDz +Wtz2+p1rUyVxcSUqTjobaji0aC8lzPZio0nd1KKM6A92/adHyQ== +-----END CERTIFICATE----- diff --git a/src/civetweb/examples/_obsolete/websocket_client/ssl/server.csr b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.csr new file mode 100644 index 000000000..4d4723b24 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.csr @@ -0,0 +1,11 @@ +-----BEGIN CERTIFICATE REQUEST----- +MIIBhDCB7gIBADBFMQswCQYDVQQGEwJBVTETMBEGA1UECAwKU29tZS1TdGF0ZTEh +MB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0cyBQdHkgTHRkMIGfMA0GCSqGSIb3DQEB +AQUAA4GNADCBiQKBgQD2T2yAfbYEKj2d5N4H9ieKUrufSwx7T6mNL0pJaFTn1DjD +yGo+tbS25iKQgN3TBWCCQkUFk2DhY+i6VN3BeyA0F4bzyrbCc21SixdNL4pBNAFK +JCh/0DL0YdC2DGeiAjXMhdsc6mnLIbnOt7xr9fp/MM6cVziIkwHDFMCeMKo5uQID +AQABoAAwDQYJKoZIhvcNAQEFBQADgYEA1EOFwyFJ2NAnRNktZCy5yVcLx9C78HoC +oHPPCOElu0VDIqe6ZecYdaqWbYlhGE0+isbOQn2CwHOeBGN8mIDsNUYzVEpsEfgg +9OK873LpE5pf4mdjSiRBXkk/h8BxuqkcKi+Qx+qEE7+dH2nK5aKeIHVvbLyfGOch +9I85q+msBNE= +-----END CERTIFICATE REQUEST----- diff --git a/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key new file mode 100644 index 000000000..f09cc38cb --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key @@ -0,0 +1,15 @@ +-----BEGIN RSA PRIVATE KEY----- +MIICXQIBAAKBgQD2T2yAfbYEKj2d5N4H9ieKUrufSwx7T6mNL0pJaFTn1DjDyGo+ +tbS25iKQgN3TBWCCQkUFk2DhY+i6VN3BeyA0F4bzyrbCc21SixdNL4pBNAFKJCh/ +0DL0YdC2DGeiAjXMhdsc6mnLIbnOt7xr9fp/MM6cVziIkwHDFMCeMKo5uQIDAQAB +AoGAYwospr3lomcZv5N3c9wWqhf6OWMD8dFma87IIBxDh7Rd3tuHXQ/TSnffDhvD +FkbjN31OI5/PJNH3knTtdg78MywPloE4jYsbt4+fEaW7Fzww2nU61N1p+mYk5d/b +SCTAHhGzF9g9ZMw25CCUFGjDU2z+Ty6my22Euxhk2Qq8tMECQQD9ZYIxWkPhywDW +pX3v70dqIv7411hEYpuL/ZJl26UCmQsj4HPtXQCraQksVPs74WY5aTtd6MAV9V3M +UnErHO5/AkEA+NdG2MmfBOBPusDB/WwQaUPiCWGITS9llGTR2JXbvDqmKgL1+UTG +o27sLNIFCrF1wejpyRGqwjcObFYR0yKrxwJBAOB2uPuK4DL1psp9Uq/mIDbOxVod +OF1rlCpP9w0vol5Iv+uJ+mc7SUqOAsg4h0yl/+2/YA1yDiXlcq96IDF2sXUCQGAv +Nh9Nr72+xpK1N0axopZNuu1NWdYb3/PAFKzXIBxdvyS2CEXVo8JAeeHJPFGpzo6p +bNRfk9WGWnjdu/4UhLkCQQCekR9zpIpzdJiPYCd6XMya+TPCDYlOQL1jlnJIRa2V +BEOz0rSpzXAGh0PyCB/kMneyVk87LWn8joE6179RoUfv +-----END RSA PRIVATE KEY----- diff --git a/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key.orig b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key.orig new file mode 100644 index 000000000..58e5653ca --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.key.orig @@ -0,0 +1,18 @@ +-----BEGIN RSA PRIVATE KEY----- +Proc-Type: 4,ENCRYPTED +DEK-Info: DES-EDE3-CBC,89778A6427F05D4A + +4aXqO/8oCHVfMLB+a1DfjbXyEddjbd7nB+YVFLPKy68Tam9PRTvC1zRHBet59ll0 +1w7R8tXR6/xH7HRhBeqDHCcuvBhtw3xGxtXWv54WBFhzuq7TvKOAaCFl++cw/JHq +PCS0rAaYnqF2MAgMi7QBjZKmHFHL43Gy60VfOrB0mmOdxqqXA0NBFC2uEd7Z/MAx +S2A85bNJJKQaWEeDThP1u0OOlNCq99lkLJ31jiOH7ntdL0/vqcbZ+PUtdPLwAG4L +1GUHuiC2v5FvDlPiejMk2dvrxCNpcu2e3tQKHpg2KcsTVrpB7EVzRSazln4HywUZ +EJfBvxqqrS7plImZgj4LXSnln0JPuBb+aHnhKIFvisjYSwqDGJnnp/OaD7YdRhYh +UCcL011Ge+yUbRipeAmHdtJlSUSdB14KWq+WdIX/KgCRGx06QZm9s1PBLH+fww+I +EL3A/LFX0a5KUHkCp29akYYv9bUYaQ79Nt7BlaEON+/SW3pJMbGr+nx8aqogr0Yo +SJ/Zz5TSDBhecRjbCDGkT6DizVZ8cbm2xl8QLBd0H+ZA6uYMgfpAOJGrJx3Nm4Lv +prEApgFtjSrsQDGYHAcmDMW1UWOVHuNp7BSvwUze9Ftnzr/jlpdzES2rhgMyGhg1 +0Szbsfs3vgw4iM83LFJXza07GQJzF8gRF79dY5JiQX/sOKUprA6Lofk631jE0G8r +3z59cxblaq9y7EgFsE944Gk7/HIEimBRiqIZzGVJVukD0itynQ+XmYTdbyH1lpvi +c0ZheZPUoGwUW9RYy+nle5gEDFyZWXcCAuJasQvDBXt//r/bso3ZpA== +-----END RSA PRIVATE KEY----- diff --git a/src/civetweb/examples/_obsolete/websocket_client/ssl/server.pem b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.pem new file mode 100644 index 000000000..300834e39 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/ssl/server.pem @@ -0,0 +1,28 @@ +-----BEGIN CERTIFICATE----- +MIICATCCAWoCCQC2BCIqIvgSUTANBgkqhkiG9w0BAQUFADBFMQswCQYDVQQGEwJB +VTETMBEGA1UECAwKU29tZS1TdGF0ZTEhMB8GA1UECgwYSW50ZXJuZXQgV2lkZ2l0 +cyBQdHkgTHRkMB4XDTE0MDgyMTEyMzAwMVoXDTI0MDgxODEyMzAwMVowRTELMAkG +A1UEBhMCQVUxEzARBgNVBAgMClNvbWUtU3RhdGUxITAfBgNVBAoMGEludGVybmV0 +IFdpZGdpdHMgUHR5IEx0ZDCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEA9k9s +gH22BCo9neTeB/YnilK7n0sMe0+pjS9KSWhU59Q4w8hqPrW0tuYikIDd0wVggkJF +BZNg4WPoulTdwXsgNBeG88q2wnNtUosXTS+KQTQBSiQof9Ay9GHQtgxnogI1zIXb +HOppyyG5zre8a/X6fzDOnFc4iJMBwxTAnjCqObkCAwEAATANBgkqhkiG9w0BAQUF +AAOBgQBX9V46VUVsB9P9fb8sFuMx2ezFE42ynEeJPrKRrof+dFYbjvR1OUZFSLCy +aZKwVH7iCnVBJiU12JxO7PR3L6ob3FYPyNHQWYq1/IFUvqBRagehldj5H8iFeEDz +Wtz2+p1rUyVxcSUqTjobaji0aC8lzPZio0nd1KKM6A92/adHyQ== +-----END CERTIFICATE----- +-----BEGIN RSA PRIVATE KEY----- +MIICXQIBAAKBgQD2T2yAfbYEKj2d5N4H9ieKUrufSwx7T6mNL0pJaFTn1DjDyGo+ +tbS25iKQgN3TBWCCQkUFk2DhY+i6VN3BeyA0F4bzyrbCc21SixdNL4pBNAFKJCh/ +0DL0YdC2DGeiAjXMhdsc6mnLIbnOt7xr9fp/MM6cVziIkwHDFMCeMKo5uQIDAQAB +AoGAYwospr3lomcZv5N3c9wWqhf6OWMD8dFma87IIBxDh7Rd3tuHXQ/TSnffDhvD +FkbjN31OI5/PJNH3knTtdg78MywPloE4jYsbt4+fEaW7Fzww2nU61N1p+mYk5d/b +SCTAHhGzF9g9ZMw25CCUFGjDU2z+Ty6my22Euxhk2Qq8tMECQQD9ZYIxWkPhywDW +pX3v70dqIv7411hEYpuL/ZJl26UCmQsj4HPtXQCraQksVPs74WY5aTtd6MAV9V3M +UnErHO5/AkEA+NdG2MmfBOBPusDB/WwQaUPiCWGITS9llGTR2JXbvDqmKgL1+UTG +o27sLNIFCrF1wejpyRGqwjcObFYR0yKrxwJBAOB2uPuK4DL1psp9Uq/mIDbOxVod +OF1rlCpP9w0vol5Iv+uJ+mc7SUqOAsg4h0yl/+2/YA1yDiXlcq96IDF2sXUCQGAv +Nh9Nr72+xpK1N0axopZNuu1NWdYb3/PAFKzXIBxdvyS2CEXVo8JAeeHJPFGpzo6p +bNRfk9WGWnjdu/4UhLkCQQCekR9zpIpzdJiPYCd6XMya+TPCDYlOQL1jlnJIRa2V +BEOz0rSpzXAGh0PyCB/kMneyVk87LWn8joE6179RoUfv +-----END RSA PRIVATE KEY----- diff --git a/src/civetweb/examples/_obsolete/websocket_client/websocket_client.c b/src/civetweb/examples/_obsolete/websocket_client/websocket_client.c new file mode 100644 index 000000000..158ad7d85 --- /dev/null +++ b/src/civetweb/examples/_obsolete/websocket_client/websocket_client.c @@ -0,0 +1,421 @@ +/* +* Copyright (c) 2014-2016 the Civetweb developers +* Copyright (c) 2014 Jordan Shelley +* https://github.com/jshelley +* License http://opensource.org/licenses/mit-license.php MIT License +*/ + +/* This example is superseeded by other examples, and no longer + * actively maintained. + * See examples/embedded_c for an up to date example. + */ + +// Simple example program on how to use websocket client embedded C interface. +#ifdef _WIN32 +#include <windows.h> +#define sleep(x) Sleep(1000 * (x)) +#else +#include <unistd.h> +#endif + +#include <assert.h> +#include <string.h> +#include "civetweb.h" + +#define DOCUMENT_ROOT "." +#define PORT "8888" +#define SSL_CERT "./ssl/server.pem" + +const char *websocket_welcome_msg = "websocket welcome\n"; +const size_t websocket_welcome_msg_len = 18 /* strlen(websocket_welcome_msg) */; +const char *websocket_acknowledge_msg = "websocket msg ok\n"; +const size_t websocket_acknowledge_msg_len = + 17 /* strlen(websocket_acknowledge_msg) */; +const char *websocket_goodbye_msg = "websocket bye\n"; +const size_t websocket_goodbye_msg_len = 14 /* strlen(websocket_goodbye_msg) */; + + +/*************************************************************************************/ +/* WEBSOCKET SERVER */ +/*************************************************************************************/ +#if defined(MG_LEGACY_INTERFACE) +int +websock_server_connect(const struct mg_connection *conn) +#else +int +websocket_server_connect(const struct mg_connection *conn, void *_ignored) +#endif +{ + printf("Server: Websocket connected\n"); + return 0; /* return 0 to accept every connection */ +} + + +#if defined(MG_LEGACY_INTERFACE) +void +websocket_server_ready(struct mg_connection *conn) +#else +void +websocket_server_ready(struct mg_connection *conn, void *_ignored) +#endif +{ + printf("Server: Websocket ready\n"); + + /* Send websocket welcome message */ + mg_lock_connection(conn); + mg_websocket_write(conn, + WEBSOCKET_OPCODE_TEXT, + websocket_welcome_msg, + websocket_welcome_msg_len); + mg_unlock_connection(conn); +} + + +#if defined(MG_LEGACY_INTERFACE) +int +websocket_server_data(struct mg_connection *conn, + int bits, + char *data, + size_t data_len) +#else +int +websocket_server_data(struct mg_connection *conn, + int bits, + char *data, + size_t data_len, + void *_ignored) +#endif +{ + printf("Server: Got %lu bytes from the client\n", (unsigned long)data_len); + printf("Server received data from client: "); + fwrite(data, 1, data_len, stdout); + printf("\n"); + + if (data_len < 3 || 0 != memcmp(data, "bye", 3)) { + /* Send websocket acknowledge message */ + mg_lock_connection(conn); + mg_websocket_write(conn, + WEBSOCKET_OPCODE_TEXT, + websocket_acknowledge_msg, + websocket_acknowledge_msg_len); + mg_unlock_connection(conn); + } else { + /* Send websocket acknowledge message */ + mg_lock_connection(conn); + mg_websocket_write(conn, + WEBSOCKET_OPCODE_TEXT, + websocket_goodbye_msg, + websocket_goodbye_msg_len); + mg_unlock_connection(conn); + } + + return 1; /* return 1 to keep the connetion open */ +} + + +#if defined(MG_LEGACY_INTERFACE) +void +websocket_server_connection_close(const struct mg_connection *conn) +#else +void +websocket_server_connection_close(const struct mg_connection *conn, + void *_ignored) +#endif +{ + printf("Server: Close connection\n"); + + /* Can not send a websocket goodbye message here - the connection is already + * closed */ +} + + +struct mg_context * +start_websocket_server() +{ + const char *options[] = {"document_root", + DOCUMENT_ROOT, + "ssl_certificate", + SSL_CERT, + "listening_ports", + PORT, + "request_timeout_ms", + "5000", + 0}; + struct mg_callbacks callbacks; + struct mg_context *ctx; + + memset(&callbacks, 0, sizeof(callbacks)); + +#if defined(MG_LEGACY_INTERFACE) + /* Obsolete: */ + callbacks.websocket_connect = websock_server_connect; + callbacks.websocket_ready = websocket_server_ready; + callbacks.websocket_data = websocket_server_data; + callbacks.connection_close = websocket_server_connection_close; + + ctx = mg_start(&callbacks, 0, options); +#else + /* New interface: */ + ctx = mg_start(&callbacks, 0, options); + + mg_set_websocket_handler(ctx, + "/websocket", + websocket_server_connect, + websocket_server_ready, + websocket_server_data, + websocket_server_connection_close, + NULL); +#endif + + return ctx; +} + + +/*************************************************************************************/ +/* WEBSOCKET CLIENT */ +/*************************************************************************************/ +struct tclient_data { + void *data; + size_t len; + int closed; +}; + +static int +websocket_client_data_handler(struct mg_connection *conn, + int flags, + char *data, + size_t data_len, + void *user_data) +{ + struct mg_context *ctx = mg_get_context(conn); + struct tclient_data *pclient_data = + (struct tclient_data *)mg_get_user_data(ctx); + + printf("Client received data from server: "); + fwrite(data, 1, data_len, stdout); + printf("\n"); + + pclient_data->data = malloc(data_len); + assert(pclient_data->data != NULL); + memcpy(pclient_data->data, data, data_len); + pclient_data->len = data_len; + + return 1; +} + +static void +websocket_client_close_handler(const struct mg_connection *conn, + void *user_data) +{ + struct mg_context *ctx = mg_get_context(conn); + struct tclient_data *pclient_data = + (struct tclient_data *)mg_get_user_data(ctx); + + printf("Client: Close handler\n"); + pclient_data->closed++; +} + + +int +main(int argc, char *argv[]) +{ + struct mg_context *ctx = NULL; + struct tclient_data client1_data = {NULL, 0, 0}; + struct tclient_data client2_data = {NULL, 0, 0}; + struct tclient_data client3_data = {NULL, 0, 0}; + struct mg_connection *newconn1 = NULL; + struct mg_connection *newconn2 = NULL; + struct mg_connection *newconn3 = NULL; + char ebuf[100] = {0}; + + assert(websocket_welcome_msg_len == strlen(websocket_welcome_msg)); + + /* First set up a websocket server */ + ctx = start_websocket_server(); + assert(ctx != NULL); + printf("Server init\n\n"); + + /* Then connect a first client */ + newconn1 = mg_connect_websocket_client("localhost", + atoi(PORT), + 0, + ebuf, + sizeof(ebuf), + "/websocket", + NULL, + websocket_client_data_handler, + websocket_client_close_handler, + &client1_data); + + if (newconn1 == NULL) { + printf("Error: %s", ebuf); + return 1; + } + + sleep(1); /* Should get the websocket welcome message */ + assert(client1_data.closed == 0); + assert(client2_data.closed == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + assert(client1_data.data != NULL); + assert(client1_data.len == websocket_welcome_msg_len); + assert(!memcmp(client1_data.data, + websocket_welcome_msg, + websocket_welcome_msg_len)); + free(client1_data.data); + client1_data.data = NULL; + client1_data.len = 0; + + mg_websocket_client_write(newconn1, WEBSOCKET_OPCODE_TEXT, "data1", 5); + + sleep(1); /* Should get the acknowledge message */ + assert(client1_data.closed == 0); + assert(client2_data.closed == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + assert(client1_data.data != NULL); + assert(client1_data.len == websocket_acknowledge_msg_len); + assert(!memcmp(client1_data.data, + websocket_acknowledge_msg, + websocket_acknowledge_msg_len)); + free(client1_data.data); + client1_data.data = NULL; + client1_data.len = 0; + + /* Now connect a second client */ + newconn2 = mg_connect_websocket_client("localhost", + atoi(PORT), + 0, + ebuf, + sizeof(ebuf), + "/websocket", + NULL, + websocket_client_data_handler, + websocket_client_close_handler, + &client2_data); + + if (newconn2 == NULL) { + printf("Error: %s", ebuf); + return 1; + } + + sleep(1); /* Client 2 should get the websocket welcome message */ + assert(client1_data.closed == 0); + assert(client2_data.closed == 0); + assert(client1_data.data == NULL); + assert(client1_data.len == 0); + assert(client2_data.data != NULL); + assert(client2_data.len == websocket_welcome_msg_len); + assert(!memcmp(client2_data.data, + websocket_welcome_msg, + websocket_welcome_msg_len)); + free(client2_data.data); + client2_data.data = NULL; + client2_data.len = 0; + + mg_websocket_client_write(newconn1, WEBSOCKET_OPCODE_TEXT, "data2", 5); + + sleep(1); /* Should get the acknowledge message */ + assert(client1_data.closed == 0); + assert(client2_data.closed == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + assert(client1_data.data != NULL); + assert(client1_data.len == websocket_acknowledge_msg_len); + assert(!memcmp(client1_data.data, + websocket_acknowledge_msg, + websocket_acknowledge_msg_len)); + free(client1_data.data); + client1_data.data = NULL; + client1_data.len = 0; + + mg_websocket_client_write(newconn1, WEBSOCKET_OPCODE_TEXT, "bye", 3); + + sleep(1); /* Should get the goodbye message */ + assert(client1_data.closed == 0); + assert(client2_data.closed == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + assert(client1_data.data != NULL); + assert(client1_data.len == websocket_goodbye_msg_len); + assert(!memcmp(client1_data.data, + websocket_goodbye_msg, + websocket_goodbye_msg_len)); + free(client1_data.data); + client1_data.data = NULL; + client1_data.len = 0; + + mg_close_connection(newconn1); + + sleep(1); /* Won't get any message */ + assert(client1_data.closed == 1); + assert(client2_data.closed == 0); + assert(client1_data.data == NULL); + assert(client1_data.len == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + + mg_websocket_client_write(newconn2, WEBSOCKET_OPCODE_TEXT, "bye", 3); + + sleep(1); /* Should get the goodbye message */ + assert(client1_data.closed == 1); + assert(client2_data.closed == 0); + assert(client1_data.data == NULL); + assert(client1_data.len == 0); + assert(client2_data.data != NULL); + assert(client2_data.len == websocket_goodbye_msg_len); + assert(!memcmp(client2_data.data, + websocket_goodbye_msg, + websocket_goodbye_msg_len)); + free(client2_data.data); + client2_data.data = NULL; + client2_data.len = 0; + + mg_close_connection(newconn2); + + sleep(1); /* Won't get any message */ + assert(client1_data.closed == 1); + assert(client2_data.closed == 1); + assert(client1_data.data == NULL); + assert(client1_data.len == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + + /* Connect client 3 */ + newconn3 = mg_connect_websocket_client("localhost", + atoi(PORT), + 0, + ebuf, + sizeof(ebuf), + "/websocket", + NULL, + websocket_client_data_handler, + websocket_client_close_handler, + &client3_data); + + sleep(1); /* Client 3 should get the websocket welcome message */ + assert(client1_data.closed == 1); + assert(client2_data.closed == 1); + assert(client3_data.closed == 0); + assert(client1_data.data == NULL); + assert(client1_data.len == 0); + assert(client2_data.data == NULL); + assert(client2_data.len == 0); + assert(client3_data.data != NULL); + assert(client3_data.len == websocket_welcome_msg_len); + assert(!memcmp(client3_data.data, + websocket_welcome_msg, + websocket_welcome_msg_len)); + free(client3_data.data); + client3_data.data = NULL; + client3_data.len = 0; + + mg_stop(ctx); + printf("Server shutdown\n"); + + sleep(10); + + assert(client3_data.closed == 1); + + return 0; +} diff --git a/src/civetweb/examples/_obsolete/ws_server/Makefile b/src/civetweb/examples/_obsolete/ws_server/Makefile new file mode 100644 index 000000000..60d9dbedb --- /dev/null +++ b/src/civetweb/examples/_obsolete/ws_server/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = ws_server +SRC = ws_server.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl -DMG_LEGACY_INTERFACE=1 +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib WITH_WEBSOCKET=1 + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/_obsolete/ws_server/docroot/index.html b/src/civetweb/examples/_obsolete/ws_server/docroot/index.html new file mode 100644 index 000000000..f1d1af3eb --- /dev/null +++ b/src/civetweb/examples/_obsolete/ws_server/docroot/index.html @@ -0,0 +1,316 @@ +<!DOCTYPE html> +<html> + +<head> + <meta charset='UTF-8'> + + <title>Websocket Meters</title> + <!-- + Version 0.1 Contributed by William Greathouse 9-Sep-2013 + Simple demo of WebSocket connection use. Not a great example of web coding, + but it is functional. + + The meter displays are adapted from CSS-TRICKS Progress Bars by Chris Coyier + at http://css-tricks.com/css3-progress-bars/ + --> + <style> + body { + background: #222; + } + h1 { + color: white; + text-align: center; + } + button { + width: 225px; + height: 30px; + margin: auto 10px; + background-color: #ccc; + -moz-border-radius: 5px; + -webkit-border-radius: 5px; + border-radius:6px; + color: blue; + font-size: 20px; + } + button:hover { + background-color: #888; + } + button:hover:disabled { + background-color: #ccc; + } + button:disabled { + color: lightgray; + } + + .button_container { + width:550px; + display:block; + margin-left:auto; + margin-right:auto; + } + + .meter { + height: 20px; /* Can be anything */ + position: relative; + background: #555; + -moz-border-radius: 25px; + -webkit-border-radius: 25px; + border-radius: 25px; + padding: 10px; + -webkit-box-shadow: inset 0 -1px 1px rgba(255,255,255,0.3); + -moz-box-shadow : inset 0 -1px 1px rgba(255,255,255,0.3); + box-shadow : inset 0 -1px 1px rgba(255,255,255,0.3); + } + .meter > span { + display: block; + height: 100%; + -webkit-border-top-right-radius: 20px; + -webkit-border-bottom-right-radius: 20px; + -moz-border-radius-topright: 20px; + -moz-border-radius-bottomright: 20px; + border-top-right-radius: 20px; + border-bottom-right-radius: 20px; + -webkit-border-top-left-radius: 20px; + -webkit-border-bottom-left-radius: 20px; + -moz-border-radius-topleft: 20px; + -moz-border-radius-bottomleft: 20px; + border-top-left-radius: 20px; + border-bottom-left-radius: 20px; + background-color: rgb(43,194,83); + background-image: -webkit-gradient( + linear, + left bottom, + left top, + color-stop(0, rgb(43,194,83)), + color-stop(1, rgb(84,240,84)) + ); + background-image: -moz-linear-gradient( + center bottom, + rgb(43,194,83) 37%, + rgb(84,240,84) 69% + ); + -webkit-box-shadow: + inset 0 2px 9px rgba(255,255,255,0.3), + inset 0 -2px 6px rgba(0,0,0,0.4); + -moz-box-shadow: + inset 0 2px 9px rgba(255,255,255,0.3), + inset 0 -2px 6px rgba(0,0,0,0.4); + box-shadow: + inset 0 2px 9px rgba(255,255,255,0.3), + inset 0 -2px 6px rgba(0,0,0,0.4); + position: relative; + overflow: hidden; + } + .meter > span:after, .animate > span > span { + content: ""; + position: absolute; + top: 0; left: 0; bottom: 0; right: 0; + background-image: + -webkit-gradient(linear, 0 0, 100% 100%, + color-stop(.25, rgba(255, 255, 255, .2)), + color-stop(.25, transparent), color-stop(.5, transparent), + color-stop(.5, rgba(255, 255, 255, .2)), + color-stop(.75, rgba(255, 255, 255, .2)), + color-stop(.75, transparent), to(transparent) + ); + background-image: + -moz-linear-gradient( + -45deg, + rgba(255, 255, 255, .2) 25%, + transparent 25%, + transparent 50%, + rgba(255, 255, 255, .2) 50%, + rgba(255, 255, 255, .2) 75%, + transparent 75%, + transparent + ); + z-index: 1; + -webkit-background-size: 50px 50px; + -moz-background-size: 50px 50px; + -webkit-animation: move 2s linear infinite; + -webkit-border-top-right-radius: 20px; + -webkit-border-bottom-right-radius: 20px; + -moz-border-radius-topright: 20px; + -moz-border-radius-bottomright: 20px; + border-top-right-radius: 20px; + border-bottom-right-radius: 20px; + -webkit-border-top-left-radius: 20px; + -webkit-border-bottom-left-radius: 20px; + -moz-border-radius-topleft: 20px; + -moz-border-radius-bottomleft: 20px; + border-top-left-radius: 20px; + border-bottom-left-radius: 20px; + overflow: hidden; + } + + .animate > span:after { + display: none; + } + + @-webkit-keyframes move { + 0% { + background-position: 0 0; + } + 100% { + background-position: 50px 50px; + } + } + + .orange > span { + background-color: #f1a165; + background-image: -moz-linear-gradient(top, #f1a165, #f36d0a); + background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0, #f1a165),color-stop(1, #f36d0a)); + background-image: -webkit-linear-gradient(#f1a165, #f36d0a); + } + + .red > span { + background-color: #f0a3a3; + background-image: -moz-linear-gradient(top, #f0a3a3, #f42323); + background-image: -webkit-gradient(linear,left top,left bottom,color-stop(0, #f0a3a3),color-stop(1, #f42323)); + background-image: -webkit-linear-gradient(#f0a3a3, #f42323); + } + + .nostripes > span > span, .nostripes > span:after { + -webkit-animation: none; + background-image: none; + } + + #output { + background-color: #ccc; + height: 240px; + overflow-y: auto; + } + + </style> +</head> + +<body> + <div id="page_wrap"> + + <h1>Meter Updates via WebSocket</h1> + + <p/> + + <div class="meter"> + <span id="meter1" style="width: 25%"></span> + </div> + + <p/> + + <div class="meter orange nostripes"> + <span id="meter2" style="width: 33.3%"></span> + </div> + + <p/> + + <div class="meter red"> + <span id="meter3" style="width: 80%"></span> + </div> + + <p/> + + </div> + <div class="button_container"> + <div> + <button id="connection" onclick="toggleConnection(this)">WebSocket Connect</button> + <button id="update" disabled onclick="toggleUpdate(this)">Disable Update</button> + </div> + </div> + <p/> + <div id="output"></div> + +</body> + +<script language="javascript" type="text/javascript"> + var connection; // websocket connection + + function writeToScreen (message) { + var div = document.createElement('div'); + var output = document.getElementById('output'); + div.innerHTML = message; + output.appendChild(div); + output.scrollTop = output.scrollHeight; + } + + function ws_connect() { + // check for websocket support + // for Internet Explorer < 10 there are options for websocket support that + // could be integrated into production code, but for now, we are expecting + // browser support to be present for this demo + if ('WebSocket' in window) { + + writeToScreen('Connecting'); + connection = new WebSocket('ws://' + window.location.host + '/meters'); + connection.onopen = function(ev) { + document.getElementById("connection").innerHTML = "WebSocket Disconnect"; + document.getElementById("update").disabled=false; + document.getElementById("update").innerHTML = "Disable Update"; + writeToScreen('CONNECTED'); + var message = 'update on'; + writeToScreen('SENT: ' + message); + connection.send(message); + }; + + connection.onclose = function(ev) { + document.getElementById("update").disabled=true; + document.getElementById("update").innerHTML = "Enable Update"; + document.getElementById("connection").innerHTML = "WebSocket Connect"; + writeToScreen('DISCONNECTED'); + }; + + connection.onmessage = function(ev) { + if (ev.data.substr(0,5) == "meter") + { + var target = ev.data.split(":")[0]; + var meter = document.getElementById(target); + var data = ev.data.split(":")[1].split(","); + var percent = (data[0]*100)/data[1]; + meter.style.width = percent+"%"; + } + else + writeToScreen('RECEIVED: ' + ev.data); + }; + + connection.onerror = function(ev) { + alert("WebSocket error"); + }; + + } else { + alert("WebSocket is not available!!!\n" + + "Demo will not function."); + } + } + + // user connect/disconnect + function toggleConnection(el) { + var tag=el.innerHTML; + if (tag == "WebSocket Connect") + { + ws_connect(); + } + else + { + connection.close(); + } + } + + // user turn updates on/off + function toggleUpdate(el) { + var tag=el.innerHTML; + var message; + if (tag == "Enable Update") + { + message = 'update on'; + el.innerHTML = "Disable Update"; + } + else + { + message = 'update off'; + el.innerHTML = "Enable Update"; + } + writeToScreen('SENT: ' + message); + connection.send(message); + } +</script> + +</html> diff --git a/src/civetweb/examples/_obsolete/ws_server/ws_server.c b/src/civetweb/examples/_obsolete/ws_server/ws_server.c new file mode 100644 index 000000000..575a26a69 --- /dev/null +++ b/src/civetweb/examples/_obsolete/ws_server/ws_server.c @@ -0,0 +1,271 @@ +// Copyright (c) 2004-2012 Sergey Lyubka +// This file is a part of civetweb project, http://github.com/bel2125/civetweb +// +// v 0.1 Contributed by William Greathouse 9-Sep-2013 + +#include <stdio.h> +#include <string.h> +#include <time.h> +#include <unistd.h> + +#include "civetweb.h" + +// simple structure for keeping track of websocket connection +struct ws_connection { + struct mg_connection *conn; + int update; + int closing; +}; + +// time base and structure periodic updates to client for demo +#define BASETIME 100000 /* 0.1 seconds */ +struct progress { + int limit; + int increment; + int period; + int value; +}; + +// up to 16 independent client connections +#define CONNECTIONS 16 +static struct ws_connection ws_conn[CONNECTIONS]; + + +// ws_server_thread() +// Simple demo server thread. Sends periodic updates to connected clients +static void *ws_server_thread(void *parm) +{ + int wsd = (long)parm; + struct mg_connection *conn = ws_conn[wsd].conn; + int timer = 0; + char tstr[32]; + int i; + struct progress meter[] = { + /* first meter 0 to 1000, by 5 every 0.1 second */ + { 1000, 5, 1, 0 }, + /* second meter 0 to 500, by 10 every 0.5 second */ + { 500, 10, 5, 0 }, + /* third meter 0 to 100, by 10 every 1.0 second */ + { 100, 10, 10, 0}, + /* end of list */ + { 0, 0, 0, 0} + }; + + fprintf(stderr, "ws_server_thread %d\n", wsd); + + /* Send initial meter updates */ + for (i=0; meter[i].period != 0; i++) { + if (meter[i].value >= meter[i].limit) + meter[i].value = 0; + if (meter[i].value >= meter[i].limit) + meter[i].value = meter[i].limit; + sprintf(tstr, "meter%d:%d,%d", i+1, + meter[i].value, meter[i].limit); + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, tstr, strlen(tstr)); + } + + /* While the connection is open, send periodic updates */ + while(!ws_conn[wsd].closing) { + usleep(100000); /* 0.1 second */ + timer++; + + /* Send meter updates */ + if (ws_conn[wsd].update) { + for (i=0; meter[i].period != 0; i++) { + if (timer%meter[i].period == 0) { + if (meter[i].value >= meter[i].limit) + meter[i].value = 0; + else + meter[i].value += meter[i].increment; + if (meter[i].value >= meter[i].limit) + meter[i].value = meter[i].limit; + // if we are closing, server should not send new data + if (!ws_conn[wsd].closing) { + sprintf(tstr, "meter%d:%d,%d", i+1, + meter[i].value, meter[i].limit); + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, tstr, strlen(tstr)); + } + } + } + } + + /* Send periodic PING to assure websocket remains connected, except if we are closing */ + if (timer%100 == 0 && !ws_conn[wsd].closing) + mg_websocket_write(conn, WEBSOCKET_OPCODE_PING, NULL, 0); + } + + fprintf(stderr, "ws_server_thread %d exiting\n", wsd); + + // reset connection information to allow reuse by new client + ws_conn[wsd].conn = NULL; + ws_conn[wsd].update = 0; + ws_conn[wsd].closing = 2; + + return NULL; +} + +// websocket_connect_handler() +// On new client connection, find next available server connection and store +// new connection information. If no more server connections are available +// tell civetweb to not accept the client request. +static int websocket_connect_handler(const struct mg_connection *conn) +{ + int i; + + fprintf(stderr, "connect handler\n"); + + for(i=0; i < CONNECTIONS; ++i) { + if (ws_conn[i].conn == NULL) { + fprintf(stderr, "...prep for server %d\n", i); + ws_conn[i].conn = (struct mg_connection *)conn; + ws_conn[i].closing = 0; + ws_conn[i].update = 0; + break; + } + } + if (i >= CONNECTIONS) { + fprintf(stderr, "Refused connection: Max connections exceeded\n"); + return 1; + } + + return 0; +} + +// websocket_ready_handler() +// Once websocket negotiation is complete, start a server for the connection +static void websocket_ready_handler(struct mg_connection *conn) +{ + int i; + + fprintf(stderr, "ready handler\n"); + + for(i=0; i < CONNECTIONS; ++i) { + if (ws_conn[i].conn == conn) { + fprintf(stderr, "...start server %d\n", i); + mg_start_thread(ws_server_thread, (void *)(long)i); + break; + } + } +} + +// websocket_close_handler() +// When websocket is closed, tell the associated server to shut down +static void websocket_close_handler(struct mg_connection *conn) +{ + int i; + + //fprintf(stderr, "close handler\n"); /* called for every close, not just websockets */ + + for(i=0; i < CONNECTIONS; ++i) { + if (ws_conn[i].conn == conn) { + fprintf(stderr, "...close server %d\n", i); + ws_conn[i].closing = 1; + } + } +} + +// Arguments: +// flags: first byte of websocket frame, see websocket RFC, +// http://tools.ietf.org/html/rfc6455, section 5.2 +// data, data_len: payload data. Mask, if any, is already applied. +static int websocket_data_handler(struct mg_connection *conn, int flags, + char *data, size_t data_len) +{ + int i; + int wsd; + + for(i=0; i < CONNECTIONS; ++i) { + if (ws_conn[i].conn == conn) { + wsd = i; + break; + } + } + if (i >= CONNECTIONS) { + fprintf(stderr, "Received websocket data from unknown connection\n"); + return 1; + } + + if (flags & 0x80) { + flags &= 0x7f; + switch (flags) { + case WEBSOCKET_OPCODE_CONTINUATION: + fprintf(stderr, "CONTINUATION...\n"); + break; + case WEBSOCKET_OPCODE_TEXT: + fprintf(stderr, "TEXT: %-.*s\n", (int)data_len, data); + /*** interpret data as commands here ***/ + if (strncmp("update on", data, data_len)== 0) { + /* turn on updates */ + ws_conn[wsd].update = 1; + /* echo back */ + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, data, data_len); + } else if (strncmp("update off", data, data_len)== 0) { + /* turn off updates */ + ws_conn[wsd].update = 0; + /* echo back */ + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, data, data_len); + } + break; + case WEBSOCKET_OPCODE_BINARY: + fprintf(stderr, "BINARY...\n"); + break; + case WEBSOCKET_OPCODE_CONNECTION_CLOSE: + fprintf(stderr, "CLOSE...\n"); + /* If client initiated close, respond with close message in acknowlegement */ + if (!ws_conn[wsd].closing) { + mg_websocket_write(conn, WEBSOCKET_OPCODE_CONNECTION_CLOSE, data, data_len); + ws_conn[wsd].closing = 1; /* we should not send addional messages when close requested/acknowledged */ + } + return 0; /* time to close the connection */ + break; + case WEBSOCKET_OPCODE_PING: + /* client sent PING, respond with PONG */ + mg_websocket_write(conn, WEBSOCKET_OPCODE_PONG, data, data_len); + break; + case WEBSOCKET_OPCODE_PONG: + /* received PONG to our PING, no action */ + break; + default: + fprintf(stderr, "Unknown flags: %02x\n", flags); + break; + } + } + + return 1; /* keep connection open */ +} + + +int main(void) +{ + char server_name[40]; + struct mg_context *ctx; + struct mg_callbacks callbacks; + const char *options[] = { + "listening_ports", "8080", + "document_root", "docroot", + NULL + }; + + /* get simple greeting for the web server */ + snprintf(server_name, sizeof(server_name), + "Civetweb websocket server v. %s", + mg_version()); + + memset(&callbacks, 0, sizeof(callbacks)); + callbacks.websocket_connect = websocket_connect_handler; + callbacks.websocket_ready = websocket_ready_handler; + callbacks.websocket_data = websocket_data_handler; + callbacks.connection_close = websocket_close_handler; + + ctx = mg_start(&callbacks, NULL, options); + + /* show the greeting and some basic information */ + printf("%s started on port(s) %s with web root [%s]\n", + server_name, mg_get_option(ctx, "listening_ports"), + mg_get_option(ctx, "document_root")); + + getchar(); // Wait until user hits "enter" + mg_stop(ctx); + + return 0; +} diff --git a/src/civetweb/examples/embedded_c/Makefile b/src/civetweb/examples/embedded_c/Makefile new file mode 100644 index 000000000..93d6379db --- /dev/null +++ b/src/civetweb/examples/embedded_c/Makefile @@ -0,0 +1,37 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = embedded_c +SRC = embedded_c.c + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) -DUSE_WEBSOCKET -DUSE_IPV6 +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) -lcrypto -lssl -DUSE_SSL_DH=1 + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) WITH_IPV6=1 WITH_WEBSOCKET=1 COPT='-DNO_SSL_DL=1' clean lib + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean + diff --git a/src/civetweb/examples/embedded_c/embedded_c.c b/src/civetweb/examples/embedded_c/embedded_c.c new file mode 100644 index 000000000..34a361e85 --- /dev/null +++ b/src/civetweb/examples/embedded_c/embedded_c.c @@ -0,0 +1,1089 @@ +/* +* Copyright (c) 2013-2017 the CivetWeb developers +* Copyright (c) 2013 No Face Press, LLC +* License http://opensource.org/licenses/mit-license.php MIT License +*/ + +/* Simple example program on how to use CivetWeb embedded into a C program. */ +#ifdef _WIN32 +#include <windows.h> +#else +#include <unistd.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include "civetweb.h" + + +#define DOCUMENT_ROOT "." +#ifdef NO_SSL +#ifdef USE_IPV6 +#define PORT "[::]:8888,8884" +#else +#define PORT "8888,8884" +#endif +#else +#ifdef USE_IPV6 +#define PORT "[::]:8888r,[::]:8843s,8884" +#else +#define PORT "8888r,8843s,8884" +#endif +#endif +#define EXAMPLE_URI "/example" +#define EXIT_URI "/exit" +int exitNow = 0; + + +int +ExampleHandler(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is an example text from a C handler</h2>"); + mg_printf( + conn, + "<p>To see a page from the A handler <a href=\"A\">click A</a></p>"); + mg_printf(conn, + "<p>To see a page from the A handler <a href=\"A/A\">click " + "A/A</a></p>"); + mg_printf(conn, + "<p>To see a page from the A/B handler <a " + "href=\"A/B\">click A/B</a></p>"); + mg_printf(conn, + "<p>To see a page from the B handler (0) <a " + "href=\"B\">click B</a></p>"); + mg_printf(conn, + "<p>To see a page from the B handler (1) <a " + "href=\"B/A\">click B/A</a></p>"); + mg_printf(conn, + "<p>To see a page from the B handler (2) <a " + "href=\"B/B\">click B/B</a></p>"); + mg_printf(conn, + "<p>To see a page from the *.foo handler <a " + "href=\"xy.foo\">click xy.foo</a></p>"); + mg_printf(conn, + "<p>To see a page from the close handler <a " + "href=\"close\">click close</a></p>"); + mg_printf(conn, + "<p>To see a page from the FileHandler handler <a " + "href=\"form\">click form</a> (the starting point of the " + "<b>form</b> test)</p>"); + mg_printf(conn, + "<p>To see a page from the CookieHandler handler <a " + "href=\"cookie\">click cookie</a></p>"); + mg_printf(conn, + "<p>To see a page from the PostResponser handler <a " + "href=\"postresponse\">click post response</a></p>"); + mg_printf(conn, + "<p>To see an example for parsing files on the fly <a " + "href=\"on_the_fly_form\">click form</a> (form for " + "uploading files)</p>"); + +#ifdef USE_WEBSOCKET + mg_printf(conn, + "<p>To test the websocket handler <a href=\"/websocket\">click " + "websocket</a></p>"); +#endif + + mg_printf(conn, + "<p>To test the authentication handler <a href=\"/auth\">click " + "auth</a></p>"); + + mg_printf(conn, "<p>To exit <a href=\"%s\">click exit</a></p>", EXIT_URI); + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +ExitHandler(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/plain\r\nConnection: close\r\n\r\n"); + mg_printf(conn, "Server will shut down.\n"); + mg_printf(conn, "Bye!\n"); + exitNow = 1; + return 1; +} + + +int +AHandler(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the A handler!!!</h2>"); + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +ABHandler(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the AB handler!!!</h2>"); + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +BXHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the BX handler %p!!!</h2>", cbdata); + mg_printf(conn, "<p>The actual uri is %s</p>", req_info->local_uri); + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +FooHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the Foo handler!!!</h2>"); + mg_printf(conn, + "<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>", + req_info->request_method, + req_info->local_uri, + req_info->http_version); + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +CloseHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, + "<h2>This handler will close the connection in a second</h2>"); +#ifdef _WIN32 + Sleep(1000); +#else + sleep(1); +#endif + mg_printf(conn, "bye"); + printf("CloseHandler: close connection\n"); + mg_close_connection(conn); + printf("CloseHandler: wait 10 sec\n"); +#ifdef _WIN32 + Sleep(10000); +#else + sleep(10); +#endif + printf("CloseHandler: return from function\n"); + return 1; +} + + +int +FileHandler(struct mg_connection *conn, void *cbdata) +{ + /* In this handler, we ignore the req_info and send the file "fileName". */ + const char *fileName = (const char *)cbdata; + + mg_send_file(conn, fileName); + return 1; +} + + +int +field_found(const char *key, + const char *filename, + char *path, + size_t pathlen, + void *user_data) +{ + struct mg_connection *conn = (struct mg_connection *)user_data; + + mg_printf(conn, "\r\n\r\n%s:\r\n", key); + + if (filename && *filename) { +#ifdef _WIN32 + _snprintf(path, pathlen, "D:\\tmp\\%s", filename); +#else + snprintf(path, pathlen, "/tmp/%s", filename); +#endif + return FORM_FIELD_STORAGE_STORE; + } + return FORM_FIELD_STORAGE_GET; +} + + +int +field_get(const char *key, const char *value, size_t valuelen, void *user_data) +{ + struct mg_connection *conn = (struct mg_connection *)user_data; + + if (key[0]) { + mg_printf(conn, "%s = ", key); + } + mg_write(conn, value, valuelen); + + return 0; +} + + +int +field_stored(const char *path, long long file_size, void *user_data) +{ + struct mg_connection *conn = (struct mg_connection *)user_data; + + mg_printf(conn, + "stored as %s (%lu bytes)\r\n\r\n", + path, + (unsigned long)file_size); + + return 0; +} + + +int +FormHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + int ret; + struct mg_form_data_handler fdh = {field_found, field_get, field_stored, 0}; + + /* It would be possible to check the request info here before calling + * mg_handle_form_request. */ + (void)req_info; + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/plain\r\nConnection: close\r\n\r\n"); + fdh.user_data = (void *)conn; + + /* Call the form handler */ + mg_printf(conn, "Form data:"); + ret = mg_handle_form_request(conn, &fdh); + mg_printf(conn, "\r\n%i fields found", ret); + + return 1; +} + + +int +FileUploadForm(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + + mg_printf(conn, "<!DOCTYPE html>\n"); + mg_printf(conn, "<html>\n<head>\n"); + mg_printf(conn, "<meta charset=\"UTF-8\">\n"); + mg_printf(conn, "<title>File upload</title>\n"); + mg_printf(conn, "</head>\n<body>\n"); + mg_printf(conn, + "<form action=\"%s\" method=\"POST\" " + "enctype=\"multipart/form-data\">\n", + (const char *)cbdata); + mg_printf(conn, "<input type=\"file\" name=\"filesin\" multiple>\n"); + mg_printf(conn, "<input type=\"submit\" value=\"Submit\">\n"); + mg_printf(conn, "</form>\n</body>\n</html>\n"); + return 1; +} + +#define MD5_STATIC static +#include "../src/md5.inl" + +struct tfile_checksum { + char name[128]; + unsigned long long length; + md5_state_t chksum; +}; + +#define MAX_FILES (10) + +struct tfiles_checksums { + int index; + struct tfile_checksum file[MAX_FILES]; +}; + + +int +field_disp_read_on_the_fly(const char *key, + const char *filename, + char *path, + size_t pathlen, + void *user_data) +{ + struct tfiles_checksums *context = (struct tfiles_checksums *)user_data; + + (void)key; + (void)path; + (void)pathlen; + + if (context->index < MAX_FILES) { + context->index++; + strncpy(context->file[context->index - 1].name, filename, 128); + context->file[context->index - 1].name[127] = 0; + context->file[context->index - 1].length = 0; + md5_init(&(context->file[context->index - 1].chksum)); + return FORM_FIELD_STORAGE_GET; + } + return FORM_FIELD_STORAGE_ABORT; +} + + +int +field_get_checksum(const char *key, + const char *value, + size_t valuelen, + void *user_data) +{ + struct tfiles_checksums *context = (struct tfiles_checksums *)user_data; + (void)key; + + context->file[context->index - 1].length += valuelen; + md5_append(&(context->file[context->index - 1].chksum), + (const md5_byte_t *)value, + valuelen); + + return 0; +} + + +int +CheckSumHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + int i, j, ret; + struct tfiles_checksums chksums; + md5_byte_t digest[16]; + struct mg_form_data_handler fdh = {field_disp_read_on_the_fly, + field_get_checksum, + 0, + (void *)&chksums}; + + /* It would be possible to check the request info here before calling + * mg_handle_form_request. */ + (void)req_info; + + memset(&chksums, 0, sizeof(chksums)); + + mg_printf(conn, + "HTTP/1.1 200 OK\r\n" + "Content-Type: text/plain\r\n" + "Connection: close\r\n\r\n"); + + /* Call the form handler */ + mg_printf(conn, "File checksums:"); + ret = mg_handle_form_request(conn, &fdh); + for (i = 0; i < chksums.index; i++) { + md5_finish(&(chksums.file[i].chksum), digest); + /* Visual Studio 2010+ support llu */ + mg_printf(conn, + "\r\n%s %llu ", + chksums.file[i].name, + chksums.file[i].length); + for (j = 0; j < 16; j++) { + mg_printf(conn, "%02x", (unsigned int)digest[j]); + } + } + mg_printf(conn, "\r\n%i files\r\n", ret); + + return 1; +} + + +int +CookieHandler(struct mg_connection *conn, void *cbdata) +{ + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + const char *cookie = mg_get_header(conn, "Cookie"); + char first_str[64], count_str[64]; + int count; + + (void)mg_get_cookie(cookie, "first", first_str, sizeof(first_str)); + (void)mg_get_cookie(cookie, "count", count_str, sizeof(count_str)); + + mg_printf(conn, "HTTP/1.1 200 OK\r\nConnection: close\r\n"); + if (first_str[0] == 0) { + time_t t = time(0); + struct tm *ptm = localtime(&t); + mg_printf(conn, + "Set-Cookie: first=%04i-%02i-%02iT%02i:%02i:%02i\r\n", + ptm->tm_year + 1900, + ptm->tm_mon + 1, + ptm->tm_mday, + ptm->tm_hour, + ptm->tm_min, + ptm->tm_sec); + } + count = (count_str[0] == 0) ? 0 : atoi(count_str); + mg_printf(conn, "Set-Cookie: count=%i\r\n", count + 1); + mg_printf(conn, "Content-Type: text/html\r\n\r\n"); + + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the CookieHandler.</h2>"); + mg_printf(conn, "<p>The actual uri is %s</p>", req_info->local_uri); + + if (first_str[0] == 0) { + mg_printf(conn, "<p>This is the first time, you opened this page</p>"); + } else { + mg_printf(conn, "<p>You opened this page %i times before.</p>", count); + mg_printf(conn, "<p>You first opened this page on %s.</p>", first_str); + } + + mg_printf(conn, "</body></html>\n"); + return 1; +} + + +int +PostResponser(struct mg_connection *conn, void *cbdata) +{ + long long r_total = 0; + int r, s; + + char buf[2048]; + + const struct mg_request_info *ri = mg_get_request_info(conn); + + if (strcmp(ri->request_method, "POST")) { + char buf[1024]; + int ret = mg_get_request_link(conn, buf, sizeof(buf)); + + mg_printf(conn, + "HTTP/1.1 405 Method Not Allowed\r\nConnection: close\r\n"); + mg_printf(conn, "Content-Type: text/plain\r\n\r\n"); + mg_printf(conn, + "%s method not allowed in the POST handler\n", + ri->request_method); + if (ret >= 0) { + mg_printf(conn, + "use a web tool to send a POST request to %s\n", + buf); + } + return 1; + } + + if (ri->content_length >= 0) { + /* We know the content length in advance */ + } else { + /* We must read until we find the end (chunked encoding + * or connection close), indicated my mg_read returning 0 */ + } + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nConnection: " + "close\r\nTransfer-Encoding: chunked\r\n"); + mg_printf(conn, "Content-Type: text/plain\r\n\r\n"); + + r = mg_read(conn, buf, sizeof(buf)); + while (r > 0) { + r_total += r; + s = mg_send_chunk(conn, buf, r); + if (r != s) { + /* Send error */ + break; + } + r = mg_read(conn, buf, sizeof(buf)); + } + mg_printf(conn, "0\r\n"); + + return 1; +} + + +int +AuthStartHandler(struct mg_connection *conn, void *cbdata) +{ + static unsigned long long firstload = 0; + const char *passfile = "password_example_file.txt"; + const char *realm = "password_example"; + const char *user = "user"; + char passwd[64]; + + if (firstload == 0) { + + /* Set a random password (4 digit number - bad idea from a security + * point of view, but this is an API demo, not a security tutorial), + * and store it in some directory within the document root (extremely + * bad idea, but this is still not a security tutorial). + * The reason we create a new password every time the server starts + * is just for demonstration - we don't want the browser to store the + * password, so when we repeat the test we start with a new password. + */ + firstload = (unsigned long long)time(NULL); + sprintf(passwd, "%04u", (unsigned int)(firstload % 10000)); + mg_modify_passwords_file(passfile, realm, user, passwd); + + /* Just tell the user the new password generated for this test. */ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + + mg_printf(conn, "<!DOCTYPE html>\n"); + mg_printf(conn, "<html>\n<head>\n"); + mg_printf(conn, "<meta charset=\"UTF-8\">\n"); + mg_printf(conn, "<title>Auth handlerexample</title>\n"); + mg_printf(conn, "</head>\n"); + + mg_printf(conn, "<body>\n"); + mg_printf(conn, + "<p>The first time you visit this page, it's free!</p>\n"); + mg_printf(conn, + "<p>Next time, use username \"%s\" and password \"%s\"</p>\n", + user, + passwd); + mg_printf(conn, "</body>\n</html>\n"); + + return 1; + } + + if (mg_check_digest_access_authentication(conn, realm, passfile) <= 0) { + /* No valid authorization */ + mg_send_digest_access_authentication_request(conn, realm); + return 1; + } + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + + mg_printf(conn, "<!DOCTYPE html>\n"); + mg_printf(conn, "<html>\n<head>\n"); + mg_printf(conn, "<meta charset=\"UTF-8\">\n"); + mg_printf(conn, "<title>Auth handlerexample</title>\n"); + mg_printf(conn, "</head>\n"); + + mg_printf(conn, "<body>\n"); + mg_printf(conn, "<p>This is the password protected contents</p>\n"); + mg_printf(conn, "</body>\n</html>\n"); + + return 1; +} + + +int +WebSocketStartHandler(struct mg_connection *conn, void *cbdata) +{ + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + + mg_printf(conn, "<!DOCTYPE html>\n"); + mg_printf(conn, "<html>\n<head>\n"); + mg_printf(conn, "<meta charset=\"UTF-8\">\n"); + mg_printf(conn, "<title>Embedded websocket example</title>\n"); + +#ifdef USE_WEBSOCKET + /* mg_printf(conn, "<script type=\"text/javascript\"><![CDATA[\n"); ... + * xhtml style */ + mg_printf(conn, "<script>\n"); + mg_printf( + conn, + "function load() {\n" + " var wsproto = (location.protocol === 'https:') ? 'wss:' : 'ws:';\n" + " connection = new WebSocket(wsproto + '//' + window.location.host + " + "'/websocket');\n" + " websock_text_field = " + "document.getElementById('websock_text_field');\n" + " connection.onmessage = function (e) {\n" + " websock_text_field.innerHTML=e.data;\n" + " }\n" + " connection.onerror = function (error) {\n" + " alert('WebSocket error');\n" + " connection.close();\n" + " }\n" + "}\n"); + /* mg_printf(conn, "]]></script>\n"); ... xhtml style */ + mg_printf(conn, "</script>\n"); + mg_printf(conn, "</head>\n<body onload=\"load()\">\n"); + mg_printf( + conn, + "<div id='websock_text_field'>No websocket connection yet</div>\n"); +#else + mg_printf(conn, "</head>\n<body>\n"); + mg_printf(conn, "Example not compiled with USE_WEBSOCKET\n"); +#endif + mg_printf(conn, "</body>\n</html>\n"); + + return 1; +} + + +#ifdef USE_WEBSOCKET + +/* MAX_WS_CLIENTS defines how many clients can connect to a websocket at the + * same time. The value 5 is very small and used here only for demonstration; + * it can be easily tested to connect more than MAX_WS_CLIENTS clients. + * A real server should use a much higher number, or better use a dynamic list + * of currently connected websocket clients. */ +#define MAX_WS_CLIENTS (5) + +struct t_ws_client { + struct mg_connection *conn; + int state; +} static ws_clients[MAX_WS_CLIENTS]; + + +#define ASSERT(x) \ + { \ + if (!(x)) { \ + fprintf(stderr, \ + "Assertion failed in line %u\n", \ + (unsigned)__LINE__); \ + } \ + } + + +int +WebSocketConnectHandler(const struct mg_connection *conn, void *cbdata) +{ + struct mg_context *ctx = mg_get_context(conn); + int reject = 1; + int i; + + mg_lock_context(ctx); + for (i = 0; i < MAX_WS_CLIENTS; i++) { + if (ws_clients[i].conn == NULL) { + ws_clients[i].conn = (struct mg_connection *)conn; + ws_clients[i].state = 1; + mg_set_user_connection_data(ws_clients[i].conn, + (void *)(ws_clients + i)); + reject = 0; + break; + } + } + mg_unlock_context(ctx); + + fprintf(stdout, + "Websocket client %s\r\n\r\n", + (reject ? "rejected" : "accepted")); + return reject; +} + + +void +WebSocketReadyHandler(struct mg_connection *conn, void *cbdata) +{ + const char *text = "Hello from the websocket ready handler"; + struct t_ws_client *client = mg_get_user_connection_data(conn); + + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, text, strlen(text)); + fprintf(stdout, "Greeting message sent to websocket client\r\n\r\n"); + ASSERT(client->conn == conn); + ASSERT(client->state == 1); + + client->state = 2; +} + + +int +WebsocketDataHandler(struct mg_connection *conn, + int bits, + char *data, + size_t len, + void *cbdata) +{ + struct t_ws_client *client = mg_get_user_connection_data(conn); + ASSERT(client->conn == conn); + ASSERT(client->state >= 1); + + fprintf(stdout, "Websocket got %lu bytes of ", (unsigned long)len); + switch (((unsigned char)bits) & 0x0F) { + case WEBSOCKET_OPCODE_CONTINUATION: + fprintf(stdout, "continuation"); + break; + case WEBSOCKET_OPCODE_TEXT: + fprintf(stdout, "text"); + break; + case WEBSOCKET_OPCODE_BINARY: + fprintf(stdout, "binary"); + break; + case WEBSOCKET_OPCODE_CONNECTION_CLOSE: + fprintf(stdout, "close"); + break; + case WEBSOCKET_OPCODE_PING: + fprintf(stdout, "ping"); + break; + case WEBSOCKET_OPCODE_PONG: + fprintf(stdout, "pong"); + break; + default: + fprintf(stdout, "unknown(%1xh)", ((unsigned char)bits) & 0x0F); + break; + } + fprintf(stdout, " data:\r\n"); + fwrite(data, len, 1, stdout); + fprintf(stdout, "\r\n\r\n"); + + return 1; +} + + +void +WebSocketCloseHandler(const struct mg_connection *conn, void *cbdata) +{ + struct mg_context *ctx = mg_get_context(conn); + struct t_ws_client *client = mg_get_user_connection_data(conn); + ASSERT(client->conn == conn); + ASSERT(client->state >= 1); + + mg_lock_context(ctx); + client->state = 0; + client->conn = NULL; + mg_unlock_context(ctx); + + fprintf(stdout, + "Client droped from the set of webserver connections\r\n\r\n"); +} + + +void +InformWebsockets(struct mg_context *ctx) +{ + static unsigned long cnt = 0; + char text[32]; + int i; + + sprintf(text, "%lu", ++cnt); + + mg_lock_context(ctx); + for (i = 0; i < MAX_WS_CLIENTS; i++) { + if (ws_clients[i].state == 2) { + mg_websocket_write(ws_clients[i].conn, + WEBSOCKET_OPCODE_TEXT, + text, + strlen(text)); + } + } + mg_unlock_context(ctx); +} +#endif + + +#ifdef USE_SSL_DH +#include "openssl/ssl.h" +#include "openssl/dh.h" +#include "openssl/ec.h" +#include "openssl/evp.h" +#include "openssl/ecdsa.h" + +DH * +get_dh2236() +{ + static unsigned char dh2236_p[] = { + 0x0E, 0x97, 0x6E, 0x6A, 0x88, 0x84, 0xD2, 0xD7, 0x55, 0x6A, 0x17, 0xB7, + 0x81, 0x9A, 0x98, 0xBC, 0x7E, 0xD1, 0x6A, 0x44, 0xB1, 0x18, 0xE6, 0x25, + 0x3A, 0x62, 0x35, 0xF0, 0x41, 0x91, 0xE2, 0x16, 0x43, 0x9D, 0x8F, 0x7D, + 0x5D, 0xDA, 0x85, 0x47, 0x25, 0xC4, 0xBA, 0x68, 0x0A, 0x87, 0xDC, 0x2C, + 0x33, 0xF9, 0x75, 0x65, 0x17, 0xCB, 0x8B, 0x80, 0xFE, 0xE0, 0xA8, 0xAF, + 0xC7, 0x9E, 0x82, 0xBE, 0x6F, 0x1F, 0x00, 0x04, 0xBD, 0x69, 0x50, 0x8D, + 0x9C, 0x3C, 0x41, 0x69, 0x21, 0x4E, 0x86, 0xC8, 0x2B, 0xCC, 0x07, 0x4D, + 0xCF, 0xE4, 0xA2, 0x90, 0x8F, 0x66, 0xA9, 0xEF, 0xF7, 0xFC, 0x6F, 0x5F, + 0x06, 0x22, 0x00, 0xCB, 0xCB, 0xC3, 0x98, 0x3F, 0x06, 0xB9, 0xEC, 0x48, + 0x3B, 0x70, 0x6E, 0x94, 0xE9, 0x16, 0xE1, 0xB7, 0x63, 0x2E, 0xAB, 0xB2, + 0xF3, 0x84, 0xB5, 0x3D, 0xD7, 0x74, 0xF1, 0x6A, 0xD1, 0xEF, 0xE8, 0x04, + 0x18, 0x76, 0xD2, 0xD6, 0xB0, 0xB7, 0x71, 0xB6, 0x12, 0x8F, 0xD1, 0x33, + 0xAB, 0x49, 0xAB, 0x09, 0x97, 0x35, 0x9D, 0x4B, 0xBB, 0x54, 0x22, 0x6E, + 0x1A, 0x33, 0x18, 0x02, 0x8A, 0xF4, 0x7C, 0x0A, 0xCE, 0x89, 0x75, 0x2D, + 0x10, 0x68, 0x25, 0xA9, 0x6E, 0xCD, 0x97, 0x49, 0xED, 0xAE, 0xE6, 0xA7, + 0xB0, 0x07, 0x26, 0x25, 0x60, 0x15, 0x2B, 0x65, 0x88, 0x17, 0xF2, 0x5D, + 0x2C, 0xF6, 0x2A, 0x7A, 0x8C, 0xAD, 0xB6, 0x0A, 0xA2, 0x57, 0xB0, 0xC1, + 0x0E, 0x5C, 0xA8, 0xA1, 0x96, 0x58, 0x9A, 0x2B, 0xD4, 0xC0, 0x8A, 0xCF, + 0x91, 0x25, 0x94, 0xB4, 0x14, 0xA7, 0xE4, 0xE2, 0x1B, 0x64, 0x5F, 0xD2, + 0xCA, 0x70, 0x46, 0xD0, 0x2C, 0x95, 0x6B, 0x9A, 0xFB, 0x83, 0xF9, 0x76, + 0xE6, 0xD4, 0xA4, 0xA1, 0x2B, 0x2F, 0xF5, 0x1D, 0xE4, 0x06, 0xAF, 0x7D, + 0x22, 0xF3, 0x04, 0x30, 0x2E, 0x4C, 0x64, 0x12, 0x5B, 0xB0, 0x55, 0x3E, + 0xC0, 0x5E, 0x56, 0xCB, 0x99, 0xBC, 0xA8, 0xD9, 0x23, 0xF5, 0x57, 0x40, + 0xF0, 0x52, 0x85, 0x9B, + }; + static unsigned char dh2236_g[] = { + 0x02, + }; + DH *dh; + + if ((dh = DH_new()) == NULL) + return (NULL); + dh->p = BN_bin2bn(dh2236_p, sizeof(dh2236_p), NULL); + dh->g = BN_bin2bn(dh2236_g, sizeof(dh2236_g), NULL); + if ((dh->p == NULL) || (dh->g == NULL)) { + DH_free(dh); + return (NULL); + } + return (dh); +} +#endif + + +#ifndef NO_SSL +int +init_ssl(void *ssl_context, void *user_data) +{ + /* Add application specific SSL initialization */ + struct ssl_ctx_st *ctx = (struct ssl_ctx_st *)ssl_context; + +#ifdef USE_SSL_DH + /* example from https://github.com/civetweb/civetweb/issues/347 */ + DH *dh = get_dh2236(); + if (!dh) + return -1; + if (1 != SSL_CTX_set_tmp_dh(ctx, dh)) + return -1; + DH_free(dh); + + EC_KEY *ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); + if (!ecdh) + return -1; + if (1 != SSL_CTX_set_tmp_ecdh(ctx, ecdh)) + return -1; + EC_KEY_free(ecdh); + + printf("ECDH ciphers initialized\n"); +#endif + return 0; +} +#endif + + +int +log_message(const struct mg_connection *conn, const char *message) +{ + puts(message); + return 1; +} + + +int +main(int argc, char *argv[]) +{ + const char *options[] = { + "document_root", + DOCUMENT_ROOT, + "listening_ports", + PORT, + "request_timeout_ms", + "10000", + "error_log_file", + "error.log", +#ifdef USE_WEBSOCKET + "websocket_timeout_ms", + "3600000", +#endif +#ifndef NO_SSL + "ssl_certificate", + "../../resources/cert/server.pem", + "ssl_protocol_version", + "3", + "ssl_cipher_list", +#ifdef USE_SSL_DH + "ECDHE-RSA-AES256-GCM-SHA384:DES-CBC3-SHA:AES128-SHA:AES128-GCM-SHA256", +#else + "DES-CBC3-SHA:AES128-SHA:AES128-GCM-SHA256", +#endif +#endif + "enable_auth_domain_check", + "no", + 0}; + struct mg_callbacks callbacks; + struct mg_context *ctx; + struct mg_server_ports ports[32]; + int port_cnt, n; + int err = 0; + +/* Check if libcivetweb has been built with all required features. */ +#ifdef USE_IPV6 + if (!mg_check_feature(8)) { + fprintf(stderr, + "Error: Embedded example built with IPv6 support, " + "but civetweb library build without.\n"); + err = 1; + } +#endif +#ifdef USE_WEBSOCKET + if (!mg_check_feature(16)) { + fprintf(stderr, + "Error: Embedded example built with websocket support, " + "but civetweb library build without.\n"); + err = 1; + } +#endif +#ifndef NO_SSL + if (!mg_check_feature(2)) { + fprintf(stderr, + "Error: Embedded example built with SSL support, " + "but civetweb library build without.\n"); + err = 1; + } +#endif + if (err) { + fprintf(stderr, "Cannot start CivetWeb - inconsistent build.\n"); + return EXIT_FAILURE; + } + + /* Start CivetWeb web server */ + memset(&callbacks, 0, sizeof(callbacks)); +#ifndef NO_SSL + callbacks.init_ssl = init_ssl; +#endif + callbacks.log_message = log_message; + ctx = mg_start(&callbacks, 0, options); + + /* Check return value: */ + if (ctx == NULL) { + fprintf(stderr, "Cannot start CivetWeb - mg_start failed.\n"); + return EXIT_FAILURE; + } + + /* Add handler EXAMPLE_URI, to explain the example */ + mg_set_request_handler(ctx, EXAMPLE_URI, ExampleHandler, 0); + mg_set_request_handler(ctx, EXIT_URI, ExitHandler, 0); + + /* Add handler for /A* and special handler for /A/B */ + mg_set_request_handler(ctx, "/A", AHandler, 0); + mg_set_request_handler(ctx, "/A/B", ABHandler, 0); + + /* Add handler for /B, /B/A, /B/B but not for /B* */ + mg_set_request_handler(ctx, "/B$", BXHandler, (void *)0); + mg_set_request_handler(ctx, "/B/A$", BXHandler, (void *)1); + mg_set_request_handler(ctx, "/B/B$", BXHandler, (void *)2); + + /* Add handler for all files with .foo extention */ + mg_set_request_handler(ctx, "**.foo$", FooHandler, 0); + + /* Add handler for /close extention */ + mg_set_request_handler(ctx, "/close", CloseHandler, 0); + + /* Add handler for /form (serve a file outside the document root) */ + mg_set_request_handler(ctx, + "/form", + FileHandler, + (void *)"../../test/form.html"); + + /* Add handler for form data */ + mg_set_request_handler(ctx, + "/handle_form.embedded_c.example.callback", + FormHandler, + (void *)0); + + /* Add a file upload handler for parsing files on the fly */ + mg_set_request_handler(ctx, + "/on_the_fly_form", + FileUploadForm, + (void *)"/on_the_fly_form.md5.callback"); + mg_set_request_handler(ctx, + "/on_the_fly_form.md5.callback", + CheckSumHandler, + (void *)0); + + /* Add handler for /cookie example */ + mg_set_request_handler(ctx, "/cookie", CookieHandler, 0); + + /* Add handler for /postresponse example */ + mg_set_request_handler(ctx, "/postresponse", PostResponser, 0); + + /* Add HTTP site to open a websocket connection */ + mg_set_request_handler(ctx, "/websocket", WebSocketStartHandler, 0); + + /* Add HTTP site with auth */ + mg_set_request_handler(ctx, "/auth", AuthStartHandler, 0); + + +#ifdef USE_WEBSOCKET + /* WS site for the websocket connection */ + mg_set_websocket_handler(ctx, + "/websocket", + WebSocketConnectHandler, + WebSocketReadyHandler, + WebsocketDataHandler, + WebSocketCloseHandler, + 0); +#endif + + /* List all listening ports */ + memset(ports, 0, sizeof(ports)); + port_cnt = mg_get_server_ports(ctx, 32, ports); + printf("\n%i listening ports:\n\n", port_cnt); + + for (n = 0; n < port_cnt && n < 32; n++) { + const char *proto = ports[n].is_ssl ? "https" : "http"; + const char *host; + + if ((ports[n].protocol & 1) == 1) { + /* IPv4 */ + host = "127.0.0.1"; + printf("Browse files at %s://%s:%i/\n", proto, host, ports[n].port); + printf("Run example at %s://%s:%i%s\n", + proto, + host, + ports[n].port, + EXAMPLE_URI); + printf( + "Exit at %s://%s:%i%s\n", proto, host, ports[n].port, EXIT_URI); + printf("\n"); + } + + if ((ports[n].protocol & 2) == 2) { + /* IPv6 */ + host = "[::1]"; + printf("Browse files at %s://%s:%i/\n", proto, host, ports[n].port); + printf("Run example at %s://%s:%i%s\n", + proto, + host, + ports[n].port, + EXAMPLE_URI); + printf( + "Exit at %s://%s:%i%s\n", proto, host, ports[n].port, EXIT_URI); + printf("\n"); + } + } + + /* Wait until the server should be closed */ + while (!exitNow) { +#ifdef _WIN32 + Sleep(1000); +#else + sleep(1); +#endif +#ifdef USE_WEBSOCKET + InformWebsockets(ctx); +#endif + } + + /* Stop the server */ + mg_stop(ctx); + printf("Server stopped.\n"); + printf("Bye!\n"); + + return EXIT_SUCCESS; +} diff --git a/src/civetweb/examples/embedded_cpp/Makefile b/src/civetweb/examples/embedded_cpp/Makefile new file mode 100644 index 000000000..65adf98bb --- /dev/null +++ b/src/civetweb/examples/embedded_cpp/Makefile @@ -0,0 +1,36 @@ +# +# Copyright (c) 2013 No Face Press, LLC +# License http://opensource.org/licenses/mit-license.php MIT License +# + +#This makefile is used to test the other Makefiles + + +PROG = embedded_cpp +SRC = embedded_cpp.cpp + +TOP = ../.. +CIVETWEB_LIB = libcivetweb.a + +CFLAGS = -I$(TOP)/include $(COPT) +LIBS = -lpthread + +include $(TOP)/resources/Makefile.in-os + +ifeq ($(TARGET_OS),LINUX) + LIBS += -ldl +endif + +all: $(PROG) + +$(PROG): $(CIVETWEB_LIB) $(SRC) + $(CXX) -o $@ $(CFLAGS) $(LDFLAGS) $(SRC) $(CIVETWEB_LIB) $(LIBS) + +$(CIVETWEB_LIB): + $(MAKE) -C $(TOP) clean lib WITH_CPP=1 + cp $(TOP)/$(CIVETWEB_LIB) . + +clean: + rm -f $(CIVETWEB_LIB) $(PROG) + +.PHONY: all clean diff --git a/src/civetweb/examples/embedded_cpp/embedded_cpp.cpp b/src/civetweb/examples/embedded_cpp/embedded_cpp.cpp new file mode 100644 index 000000000..d45a573cf --- /dev/null +++ b/src/civetweb/examples/embedded_cpp/embedded_cpp.cpp @@ -0,0 +1,432 @@ +/* Copyright (c) 2013-2017 the Civetweb developers + * Copyright (c) 2013 No Face Press, LLC + * License http://opensource.org/licenses/mit-license.php MIT License + */ + +// Simple example program on how to use Embedded C++ interface. + +#include "CivetServer.h" +#include <cstring> + +#ifdef _WIN32 +#include <windows.h> +#else +#include <unistd.h> +#endif + +#define DOCUMENT_ROOT "." +#define PORT "8081" +#define EXAMPLE_URI "/example" +#define EXIT_URI "/exit" +bool exitNow = false; + +class ExampleHandler : public CivetHandler +{ + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/html\r\nConnection: close\r\n\r\n"); + mg_printf(conn, "<html><body>\r\n"); + mg_printf(conn, + "<h2>This is an example text from a C++ handler</h2>\r\n"); + mg_printf(conn, + "<p>To see a page from the A handler <a " + "href=\"a\">click here</a></p>\r\n"); + mg_printf(conn, + "<p>To see a page from the A handler with a parameter " + "<a href=\"a?param=1\">click here</a></p>\r\n"); + mg_printf(conn, + "<p>To see a page from the A/B handler <a " + "href=\"a/b\">click here</a></p>\r\n"); + mg_printf(conn, + "<p>To see a page from the *.foo handler <a " + "href=\"xy.foo\">click here</a></p>\r\n"); + mg_printf(conn, + "<p>To see a page from the WebSocket handler <a " + "href=\"ws\">click here</a></p>\r\n"); + mg_printf(conn, + "<p>To exit <a href=\"%s\">click here</a></p>\r\n", + EXIT_URI); + mg_printf(conn, "</body></html>\r\n"); + return true; + } +}; + +class ExitHandler : public CivetHandler +{ + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/plain\r\nConnection: close\r\n\r\n"); + mg_printf(conn, "Bye!\n"); + exitNow = true; + return true; + } +}; + +class AHandler : public CivetHandler +{ + private: + bool + handleAll(const char *method, + CivetServer *server, + struct mg_connection *conn) + { + std::string s = ""; + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/html\r\nConnection: close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the A handler for \"%s\" !</h2>", method); + if (CivetServer::getParam(conn, "param", s)) { + mg_printf(conn, "<p>param set to %s</p>", s.c_str()); + } else { + mg_printf(conn, "<p>param not set</p>"); + } + mg_printf(conn, "</body></html>\n"); + return true; + } + + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + return handleAll("GET", server, conn); + } + bool + handlePost(CivetServer *server, struct mg_connection *conn) + { + return handleAll("POST", server, conn); + } +}; + +class ABHandler : public CivetHandler +{ + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/html\r\nConnection: close\r\n\r\n"); + mg_printf(conn, "<html><body>"); + mg_printf(conn, "<h2>This is the AB handler!!!</h2>"); + mg_printf(conn, "</body></html>\n"); + return true; + } +}; + +class FooHandler : public CivetHandler +{ + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/html\r\nConnection: close\r\n\r\n"); + + mg_printf(conn, "<html><body>\n"); + mg_printf(conn, "<h2>This is the Foo GET handler!!!</h2>\n"); + mg_printf(conn, + "<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n", + req_info->request_method, + req_info->request_uri, + req_info->http_version); + mg_printf(conn, "</body></html>\n"); + + return true; + } + bool + handlePost(CivetServer *server, struct mg_connection *conn) + { + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + long long rlen, wlen; + long long nlen = 0; + long long tlen = req_info->content_length; + char buf[1024]; + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: " + "text/html\r\nConnection: close\r\n\r\n"); + + mg_printf(conn, "<html><body>\n"); + mg_printf(conn, "<h2>This is the Foo POST handler!!!</h2>\n"); + mg_printf(conn, + "<p>The request was:<br><pre>%s %s HTTP/%s</pre></p>\n", + req_info->request_method, + req_info->request_uri, + req_info->http_version); + mg_printf(conn, "<p>Content Length: %li</p>\n", (long)tlen); + mg_printf(conn, "<pre>\n"); + + while (nlen < tlen) { + rlen = tlen - nlen; + if (rlen > sizeof(buf)) { + rlen = sizeof(buf); + } + rlen = mg_read(conn, buf, (size_t)rlen); + if (rlen <= 0) { + break; + } + wlen = mg_write(conn, buf, (size_t)rlen); + if (wlen != rlen) { + break; + } + nlen += wlen; + } + + mg_printf(conn, "\n</pre>\n"); + mg_printf(conn, "</body></html>\n"); + + return true; + } + + #define fopen_recursive fopen + + bool + handlePut(CivetServer *server, struct mg_connection *conn) + { + /* Handler may access the request info using mg_get_request_info */ + const struct mg_request_info *req_info = mg_get_request_info(conn); + long long rlen, wlen; + long long nlen = 0; + long long tlen = req_info->content_length; + FILE * f; + char buf[1024]; + int fail = 0; + +#ifdef _WIN32 + _snprintf(buf, sizeof(buf), "D:\\somewhere\\%s\\%s", req_info->remote_user, req_info->local_uri); + buf[sizeof(buf)-1] = 0; + if (strlen(buf)>255) { + /* Windows will not work with path > 260 (MAX_PATH), unless we use + * the unicode API. However, this is just an example code: A real + * code will probably never store anything to D:\\somewhere and + * must be adapted to the specific needs anyhow. */ + fail = 1; + f = NULL; + } else { + f = fopen_recursive(buf, "wb"); + } +#else + snprintf(buf, sizeof(buf), "~/somewhere/%s/%s", req_info->remote_user, req_info->local_uri); + buf[sizeof(buf)-1] = 0; + if (strlen(buf)>1020) { + /* The string is too long and probably truncated. Make sure an + * UTF-8 string is never truncated between the UTF-8 code bytes. + * This example code must be adapted to the specific needs. */ + fail = 1; + f = NULL; + } else { + f = fopen_recursive(buf, "w"); + } +#endif + + if (!f) { + fail = 1; + } else { + while (nlen < tlen) { + rlen = tlen - nlen; + if (rlen > sizeof(buf)) { + rlen = sizeof(buf); + } + rlen = mg_read(conn, buf, (size_t)rlen); + if (rlen <= 0) { + fail = 1; + break; + } + wlen = fwrite(buf, 1, (size_t)rlen, f); + if (wlen != rlen) { + fail = 1; + break; + } + nlen += wlen; + } + fclose(f); + } + + if (fail) { + mg_printf(conn, + "HTTP/1.1 409 Conflict\r\n" + "Content-Type: text/plain\r\n" + "Connection: close\r\n\r\n"); + } else { + mg_printf(conn, + "HTTP/1.1 201 Created\r\n" + "Content-Type: text/plain\r\n" + "Connection: close\r\n\r\n"); + } + + return true; + } +}; + +class WsStartHandler : public CivetHandler +{ + public: + bool + handleGet(CivetServer *server, struct mg_connection *conn) + { + + mg_printf(conn, + "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: " + "close\r\n\r\n"); + + mg_printf(conn, "<!DOCTYPE html>\n"); + mg_printf(conn, "<html>\n<head>\n"); + mg_printf(conn, "<meta charset=\"UTF-8\">\n"); + mg_printf(conn, "<title>Embedded websocket example</title>\n"); + +#ifdef USE_WEBSOCKET + /* mg_printf(conn, "<script type=\"text/javascript\"><![CDATA[\n"); ... + * xhtml style */ + mg_printf(conn, "<script>\n"); + mg_printf( + conn, + "var i=0\n" + "function load() {\n" + " var wsproto = (location.protocol === 'https:') ? 'wss:' : 'ws:';\n" + " connection = new WebSocket(wsproto + '//' + window.location.host + " + "'/websocket');\n" + " websock_text_field = " + "document.getElementById('websock_text_field');\n" + " connection.onmessage = function (e) {\n" + " websock_text_field.innerHTML=e.data;\n" + " i=i+1;" + " connection.send(i);\n" + " }\n" + " connection.onerror = function (error) {\n" + " alert('WebSocket error');\n" + " connection.close();\n" + " }\n" + "}\n"); + /* mg_printf(conn, "]]></script>\n"); ... xhtml style */ + mg_printf(conn, "</script>\n"); + mg_printf(conn, "</head>\n<body onload=\"load()\">\n"); + mg_printf( + conn, + "<div id='websock_text_field'>No websocket connection yet</div>\n"); +#else + mg_printf(conn, "</head>\n<body>\n"); + mg_printf(conn, "Example not compiled with USE_WEBSOCKET\n"); +#endif + mg_printf(conn, "</body>\n</html>\n"); + + return 1; +} +}; + + +#ifdef USE_WEBSOCKET +class WebSocketHandler : public CivetWebSocketHandler { + + virtual bool handleConnection(CivetServer *server, + const struct mg_connection *conn) { + printf("WS connected\n"); + return true; + } + + virtual void handleReadyState(CivetServer *server, + struct mg_connection *conn) { + printf("WS ready\n"); + + const char *text = "Hello from the websocket ready handler"; + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, text, strlen(text)); + } + + virtual bool handleData(CivetServer *server, + struct mg_connection *conn, + int bits, + char *data, + size_t data_len) { + printf("WS got %lu bytes: ", (long unsigned)data_len); + fwrite(data, 1, data_len, stdout); + printf("\n"); + + mg_websocket_write(conn, WEBSOCKET_OPCODE_TEXT, data, data_len); + return (data_len<4); + } + + virtual void handleClose(CivetServer *server, + const struct mg_connection *conn) { + printf("WS closed\n"); + } +}; +#endif + + +int +main(int argc, char *argv[]) +{ + const char *options[] = { + "document_root", DOCUMENT_ROOT, "listening_ports", PORT, 0}; + + std::vector<std::string> cpp_options; + for (int i=0; i<(sizeof(options)/sizeof(options[0])-1); i++) { + cpp_options.push_back(options[i]); + } + + // CivetServer server(options); // <-- C style start + CivetServer server(cpp_options); // <-- C++ style start + + ExampleHandler h_ex; + server.addHandler(EXAMPLE_URI, h_ex); + + ExitHandler h_exit; + server.addHandler(EXIT_URI, h_exit); + + AHandler h_a; + server.addHandler("/a", h_a); + + ABHandler h_ab; + server.addHandler("/a/b", h_ab); + + WsStartHandler h_ws; + server.addHandler("/ws", h_ws); + +#ifdef NO_FILES + /* This handler will handle "everything else", including + * requests to files. If this handler is installed, + * NO_FILES should be set. */ + FooHandler h_foo; + server.addHandler("", h_foo); + + printf("See a page from the \"all\" handler at http://localhost:%s/\n", PORT); +#else + FooHandler h_foo; + server.addHandler("**.foo", h_foo); + printf("Browse files at http://localhost:%s/\n", PORT); +#endif + +#ifdef USE_WEBSOCKET + WebSocketHandler h_websocket; + server.addWebSocketHandler("/websocket", h_websocket); + printf("Run websocket example at http://localhost:%s/ws\n", PORT); +#endif + + printf("Run example at http://localhost:%s%s\n", PORT, EXAMPLE_URI); + printf("Exit at http://localhost:%s%s\n", PORT, EXIT_URI); + + while (!exitNow) { +#ifdef _WIN32 + Sleep(1000); +#else + sleep(1); +#endif + } + + printf("Bye!\n"); + + return 0; +} diff --git a/src/civetweb/examples/https/README.md b/src/civetweb/examples/https/README.md new file mode 100644 index 000000000..7b18b4724 --- /dev/null +++ b/src/civetweb/examples/https/README.md @@ -0,0 +1,15 @@ +HTTPS Server configuration example +==== + +This directory contains an example [`civetweb.conf`](civetweb.conf) configuration file for a secure HTTPS server. You can run a HTTPS server without most of the options there - only `ssl_certificate` and one port (e.g., `443s`) in `listening_ports` is required. The default settings will work, but not comply with up to date security standards. It is somewhat debatable what "up to date security" means - you can use the following web sites to run tests: + +- https://securityheaders.io +- https://www.htbridge.com/ssl +- https://www.htbridge.com/websec +- https://www.ssllabs.com/ssltest/analyze.html / https://www.qualys.com/forms/freescan/ +- probably there are some more ... let me know! + +Instructions to run the test and to adapt the configuration can be found [`civetweb.conf`](civetweb.conf). You can test this configuration directly with the standalone server, or you can take the settings and add it into your embedding code. + +Note: I do not take any warranty or liability for this configuration, or for the content of any linked web site. + diff --git a/src/civetweb/examples/https/civetweb.conf b/src/civetweb/examples/https/civetweb.conf new file mode 100644 index 000000000..cd10eddab --- /dev/null +++ b/src/civetweb/examples/https/civetweb.conf @@ -0,0 +1,86 @@ +# Instructions to run (on Linux) to reproduce test results: +# +# 1) copy civetweb executable here (examples/https directory) +# 2) sudo ./civetweb +# +# Instructions to adapt to your own server: +# +# 1) generate your own server cert +# 2) generate at least one backup server cert +# in case you want a self signed cert, you can use the script +# in resources/cert for both steps +# 3) copy the content of the *.pin files into the Public-Key-Pins +# header config (the base64 encoded certificate hash) +# 4) set the document root, and all other required http server settings +# 5) Run the tests from the three websites below. They will tell you +# also what clients are compatible with your settings. The settings +# here are very strict and lock out most older clients/browsers. +# You will find some hints for fine tuning there as well. +# 6) If you know all your clients, and give them client certificates in +# advance, you can significantly improve security by setting +# "ssl_verify_peer" to "yes" and specifying a client cert (directory) +# using "ssl_ca_file/path". This will lock out all clients without a +# proper certificate. Don't use it for your public home page, but +# consider it for your private remote access server. +# 7) run civetweb, like above - or better create your own start script +# You are welcome to share your thoughts and experience on GitHub +# (or Google groups) - see README.md in CivetWeb main directory + +# Don't run as super user, switch back to a regular user +run_as_user user + +# The standard HTTP port 80 should redirect to the standard HTTPS port 443 +listening_ports 80r,443s + +# Don't forget to set the document root and domain +#document_root tdb +#authentication_domain mydomain.com + +# Set the a certificate +ssl_certificate ../../resources/cert/server.pem + +# Require a client cert for your private server (see above) +#ssl_verify_peer yes +#ssl_ca_file ../../resources/cert/client.pem + +# Enforce TLS1.2 and some strong cipher(s) +ssl_protocol_version 4 +ssl_cipher_list ECDH+AESGCM+AES256:!aNULL:!MD5:!DSS + +# Tell all browsers to access this site only as HTTPS for the next 180 days +strict_transport_security_max_age 15552000 + +# Set some HTTP security header, see https://securityheaders.io +additional_header Content-Security-Policy: script-src 'self' +additional_header X-Frame-Options: SAMEORIGIN +additional_header X-Xss-Protection: 1; mode=block +additional_header X-Content-Type-Options: nosniff +additional_header Referrer-Policy: same-origin +additional_header Public-Key-Pins: pin-sha256="uz1UTAPen+xb+UoQqkVlEx4H653LbMjfRJcZx5OrjbI="; pin-sha256="pf3px1MBPmlTGAPoiHWqaSJ9L9Z+DKfwgsU7LfLnmsk="; max-age=7776000 +#additional_header Expect-CT: max-age=86400,report-uri="https://mydomain.com/report" + + +# Ratings from 2017-09-03 (tests performed later may require more +# strict security settings) +# +# Headers rated A+ from https://securityheaders.io/ +# +# SSL rated B from https://www.htbridge.com/ssl when using a self signed +# certificate, but no other weaknesses for modern browsers. +# Site remarks some older TLS versions and some weaker ciphers are not +# supported (but that's accessibility, not security). +# +# HTTPS rated A+ from https://www.htbridge.com/websec/ when using a self +# signed certificate, generated with make_certs.sh in resources/cert/ +# and adding the server.pin and server_bkup.pin content into the +# Public-Key-Pins header above. +# +# A rating of "T / If trust issues are ignored: A" (ignoring self-signed cert) +# from https://www.ssllabs.com/ssltest/, https://www.qualys.com/forms/freescan/ +# (Note: this test is runs with reverse DNS name, while all others use the +# IP address). +# +# Note: This settings are very strict and prevent some older but still common +# versions of major browsers to access this site. The test web sites will give +# you an overview. Test, before you use this settings. + |
