http://mbed.org/users/okini3939/notebook/node_websocket/

Dependencies:   EthernetNetIf mbed MbedJSONValue

Committer:
okini3939
Date:
Wed Nov 02 02:56:07 2011 +0000
Revision:
0:236a084b1d6b

        

Who changed what in which revision?

UserRevisionLine numberNew contents of line
okini3939 0:236a084b1d6b 1 /**
okini3939 0:236a084b1d6b 2 * @author Samuel Mokrani
okini3939 0:236a084b1d6b 3 *
okini3939 0:236a084b1d6b 4 * @section LICENSE
okini3939 0:236a084b1d6b 5 *
okini3939 0:236a084b1d6b 6 * Copyright (c) 2011 mbed
okini3939 0:236a084b1d6b 7 *
okini3939 0:236a084b1d6b 8 * Permission is hereby granted, free of charge, to any person obtaining a copy
okini3939 0:236a084b1d6b 9 * of this software and associated documentation files (the "Software"), to deal
okini3939 0:236a084b1d6b 10 * in the Software without restriction, including without limitation the rights
okini3939 0:236a084b1d6b 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
okini3939 0:236a084b1d6b 12 * copies of the Software, and to permit persons to whom the Software is
okini3939 0:236a084b1d6b 13 * furnished to do so, subject to the following conditions:
okini3939 0:236a084b1d6b 14 *
okini3939 0:236a084b1d6b 15 * The above copyright notice and this permission notice shall be included in
okini3939 0:236a084b1d6b 16 * all copies or substantial portions of the Software.
okini3939 0:236a084b1d6b 17 *
okini3939 0:236a084b1d6b 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
okini3939 0:236a084b1d6b 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
okini3939 0:236a084b1d6b 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
okini3939 0:236a084b1d6b 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
okini3939 0:236a084b1d6b 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
okini3939 0:236a084b1d6b 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
okini3939 0:236a084b1d6b 24 * THE SOFTWARE.
okini3939 0:236a084b1d6b 25 *
okini3939 0:236a084b1d6b 26 * @section DESCRIPTION
okini3939 0:236a084b1d6b 27 * Simple websocket client
okini3939 0:236a084b1d6b 28 *
okini3939 0:236a084b1d6b 29 */
okini3939 0:236a084b1d6b 30 /*
okini3939 0:236a084b1d6b 31 * modify by Suga
okini3939 0:236a084b1d6b 32 */
okini3939 0:236a084b1d6b 33
okini3939 0:236a084b1d6b 34 #ifndef WEBSOCKET_H
okini3939 0:236a084b1d6b 35 #define WEBSOCKET_H
okini3939 0:236a084b1d6b 36
okini3939 0:236a084b1d6b 37 //#define WIFLY
okini3939 0:236a084b1d6b 38 //#define ETH_SETUP
okini3939 0:236a084b1d6b 39
okini3939 0:236a084b1d6b 40 #include "mbed.h"
okini3939 0:236a084b1d6b 41 #ifdef WIFLY
okini3939 0:236a084b1d6b 42 #include "Wifly.h"
okini3939 0:236a084b1d6b 43 #endif
okini3939 0:236a084b1d6b 44 #include <string>
okini3939 0:236a084b1d6b 45
okini3939 0:236a084b1d6b 46 #include "EthernetNetIf.h"
okini3939 0:236a084b1d6b 47 #include "TCPSocket.h"
okini3939 0:236a084b1d6b 48 //#include "dnsresolve.h"
okini3939 0:236a084b1d6b 49 #include "DNSRequest.h"
okini3939 0:236a084b1d6b 50
okini3939 0:236a084b1d6b 51 /** Websocket client Class.
okini3939 0:236a084b1d6b 52 *
okini3939 0:236a084b1d6b 53 * Warning: you must use a wifi module (Wifly RN131-C) or an ethernet network to use this class
okini3939 0:236a084b1d6b 54 *
okini3939 0:236a084b1d6b 55 * Example (wifi network):
okini3939 0:236a084b1d6b 56 * @code
okini3939 0:236a084b1d6b 57 * #include "mbed.h"
okini3939 0:236a084b1d6b 58 * #include "Wifly.h"
okini3939 0:236a084b1d6b 59 * #include "Websocket.h"
okini3939 0:236a084b1d6b 60 *
okini3939 0:236a084b1d6b 61 * Serial pc(USBTX, USBRX);
okini3939 0:236a084b1d6b 62 * Wifly * wifly;
okini3939 0:236a084b1d6b 63 * Websocket * ws;
okini3939 0:236a084b1d6b 64 *
okini3939 0:236a084b1d6b 65 * int main()
okini3939 0:236a084b1d6b 66 * {
okini3939 0:236a084b1d6b 67 * wifly = new Wifly(p9, p10, p20, "network", "password", true);
okini3939 0:236a084b1d6b 68 * ws = new Websocket("ws://ip_domain/path", wifly);
okini3939 0:236a084b1d6b 69 *
okini3939 0:236a084b1d6b 70 * if(wifly->join())
okini3939 0:236a084b1d6b 71 * {
okini3939 0:236a084b1d6b 72 * if(ws->connect())
okini3939 0:236a084b1d6b 73 * {
okini3939 0:236a084b1d6b 74 * pc.printf("ws connected\r\n");
okini3939 0:236a084b1d6b 75 * while(1)
okini3939 0:236a084b1d6b 76 * {
okini3939 0:236a084b1d6b 77 * wait(0.1);
okini3939 0:236a084b1d6b 78 * ws->send("test");
okini3939 0:236a084b1d6b 79 * }
okini3939 0:236a084b1d6b 80 * }
okini3939 0:236a084b1d6b 81 * else
okini3939 0:236a084b1d6b 82 * pc.printf("ws not connected\r\n");
okini3939 0:236a084b1d6b 83 * }
okini3939 0:236a084b1d6b 84 * else
okini3939 0:236a084b1d6b 85 * pc.printf("join network failed\r\n");
okini3939 0:236a084b1d6b 86 *
okini3939 0:236a084b1d6b 87 * }
okini3939 0:236a084b1d6b 88 * @endcode
okini3939 0:236a084b1d6b 89 *
okini3939 0:236a084b1d6b 90 *
okini3939 0:236a084b1d6b 91 *
okini3939 0:236a084b1d6b 92 * Example (ethernet network):
okini3939 0:236a084b1d6b 93 * @code
okini3939 0:236a084b1d6b 94 * #include "mbed.h"
okini3939 0:236a084b1d6b 95 * #include "Websocket.h"
okini3939 0:236a084b1d6b 96 *
okini3939 0:236a084b1d6b 97 * Serial pc(USBTX, USBRX);
okini3939 0:236a084b1d6b 98 * Websocket * ws;
okini3939 0:236a084b1d6b 99 *
okini3939 0:236a084b1d6b 100 * int main()
okini3939 0:236a084b1d6b 101 * {
okini3939 0:236a084b1d6b 102 * ws = new Websocket("ws://ip_domain/path");
okini3939 0:236a084b1d6b 103 *
okini3939 0:236a084b1d6b 104 * if(ws->connect())
okini3939 0:236a084b1d6b 105 * {
okini3939 0:236a084b1d6b 106 * pc.printf("ws connected\r\n");
okini3939 0:236a084b1d6b 107 * while(1)
okini3939 0:236a084b1d6b 108 * {
okini3939 0:236a084b1d6b 109 * wait(0.1);
okini3939 0:236a084b1d6b 110 * ws->send("test");
okini3939 0:236a084b1d6b 111 * }
okini3939 0:236a084b1d6b 112 * }
okini3939 0:236a084b1d6b 113 * else
okini3939 0:236a084b1d6b 114 * pc.printf("ws not connected\r\n");
okini3939 0:236a084b1d6b 115 * }
okini3939 0:236a084b1d6b 116 * @endcode
okini3939 0:236a084b1d6b 117 */
okini3939 0:236a084b1d6b 118 class Websocket
okini3939 0:236a084b1d6b 119 {
okini3939 0:236a084b1d6b 120 public:
okini3939 0:236a084b1d6b 121 /**
okini3939 0:236a084b1d6b 122 * Constructor
okini3939 0:236a084b1d6b 123 *
okini3939 0:236a084b1d6b 124 * @param url The Websocket url in the form "ws://ip_domain[:port]/path" (by default: port = 80)
okini3939 0:236a084b1d6b 125 * @param wifi pointer to a wifi module (the communication will be establish by this module)
okini3939 0:236a084b1d6b 126 */
okini3939 0:236a084b1d6b 127 #ifdef WIFLY
okini3939 0:236a084b1d6b 128 Websocket(char * url, Wifly * wifi);
okini3939 0:236a084b1d6b 129 #endif
okini3939 0:236a084b1d6b 130
okini3939 0:236a084b1d6b 131 /**
okini3939 0:236a084b1d6b 132 * Constructor for an ethernet communication
okini3939 0:236a084b1d6b 133 *
okini3939 0:236a084b1d6b 134 * @param url The Websocket url in the form "ws://ip_domain[:port]/path" (by default: port = 80)
okini3939 0:236a084b1d6b 135 */
okini3939 0:236a084b1d6b 136 Websocket(char * url, EthernetNetIf *e);
okini3939 0:236a084b1d6b 137
okini3939 0:236a084b1d6b 138 /**
okini3939 0:236a084b1d6b 139 * Connect to the websocket url
okini3939 0:236a084b1d6b 140 *
okini3939 0:236a084b1d6b 141 *@return true if the connection is established, false otherwise
okini3939 0:236a084b1d6b 142 */
okini3939 0:236a084b1d6b 143 bool connect();
okini3939 0:236a084b1d6b 144
okini3939 0:236a084b1d6b 145 /**
okini3939 0:236a084b1d6b 146 * Send a string according to the websocket format: 00 str ff
okini3939 0:236a084b1d6b 147 *
okini3939 0:236a084b1d6b 148 * @param str string to be sent
okini3939 0:236a084b1d6b 149 */
okini3939 0:236a084b1d6b 150 void send(char * str);
okini3939 0:236a084b1d6b 151
okini3939 0:236a084b1d6b 152 /**
okini3939 0:236a084b1d6b 153 * Read a websocket message
okini3939 0:236a084b1d6b 154 *
okini3939 0:236a084b1d6b 155 * @param message pointer to the string to be read (null if drop frame)
okini3939 0:236a084b1d6b 156 *
okini3939 0:236a084b1d6b 157 * @return true if a string has been read, false otherwise
okini3939 0:236a084b1d6b 158 */
okini3939 0:236a084b1d6b 159 bool read(char * message);
okini3939 0:236a084b1d6b 160
okini3939 0:236a084b1d6b 161 /**
okini3939 0:236a084b1d6b 162 * To see if there is a websocket connection active
okini3939 0:236a084b1d6b 163 *
okini3939 0:236a084b1d6b 164 * @return true if there is a connection active
okini3939 0:236a084b1d6b 165 */
okini3939 0:236a084b1d6b 166 bool connected();
okini3939 0:236a084b1d6b 167
okini3939 0:236a084b1d6b 168 /**
okini3939 0:236a084b1d6b 169 * Close the websocket connection
okini3939 0:236a084b1d6b 170 *
okini3939 0:236a084b1d6b 171 * @return true if the connection has been closed, false otherwise
okini3939 0:236a084b1d6b 172 */
okini3939 0:236a084b1d6b 173 bool close();
okini3939 0:236a084b1d6b 174
okini3939 0:236a084b1d6b 175 /**
okini3939 0:236a084b1d6b 176 * Accessor: get path from the websocket url
okini3939 0:236a084b1d6b 177 *
okini3939 0:236a084b1d6b 178 * @return path
okini3939 0:236a084b1d6b 179 */
okini3939 0:236a084b1d6b 180 std::string getPath();
okini3939 0:236a084b1d6b 181
okini3939 0:236a084b1d6b 182 enum Type {
okini3939 0:236a084b1d6b 183 WIF,
okini3939 0:236a084b1d6b 184 ETH
okini3939 0:236a084b1d6b 185 };
okini3939 0:236a084b1d6b 186
okini3939 0:236a084b1d6b 187
okini3939 0:236a084b1d6b 188 private:
okini3939 0:236a084b1d6b 189
okini3939 0:236a084b1d6b 190
okini3939 0:236a084b1d6b 191 void fillFields(char * url);
okini3939 0:236a084b1d6b 192 void isr_dns (DNSReply r);
okini3939 0:236a084b1d6b 193
okini3939 0:236a084b1d6b 194 std::string ip_domain;
okini3939 0:236a084b1d6b 195 std::string path;
okini3939 0:236a084b1d6b 196 std::string port;
okini3939 0:236a084b1d6b 197
okini3939 0:236a084b1d6b 198 #ifdef WIFLY
okini3939 0:236a084b1d6b 199 Wifly * wifi;
okini3939 0:236a084b1d6b 200 #endif
okini3939 0:236a084b1d6b 201
okini3939 0:236a084b1d6b 202 void onTCPSocketEvent(TCPSocketEvent e);
okini3939 0:236a084b1d6b 203 bool eth_connected;
okini3939 0:236a084b1d6b 204 bool eth_readable;
okini3939 0:236a084b1d6b 205 bool eth_writeable;
okini3939 0:236a084b1d6b 206 char eth_rx[512];
okini3939 0:236a084b1d6b 207 bool response_server_eth;
okini3939 0:236a084b1d6b 208 bool new_msg;
okini3939 0:236a084b1d6b 209 int dns_status;
okini3939 0:236a084b1d6b 210
okini3939 0:236a084b1d6b 211 EthernetNetIf * eth;
okini3939 0:236a084b1d6b 212 TCPSocket * sock;
okini3939 0:236a084b1d6b 213 IpAddr * server_ip;
okini3939 0:236a084b1d6b 214
okini3939 0:236a084b1d6b 215 Type netif;
okini3939 0:236a084b1d6b 216
okini3939 0:236a084b1d6b 217
okini3939 0:236a084b1d6b 218 };
okini3939 0:236a084b1d6b 219
okini3939 0:236a084b1d6b 220 #endif