Samuel Mokrani
WebSocket client library
Websocket.cpp@25:2214f1e5d4a3, 2012-05-09 (annotated)
- Committer:
- samux
- Date:
- Wed May 09 11:45:54 2012 +0000
- Revision:
- 25:2214f1e5d4a3
- Parent:
- 24:15112fd8ad45
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| samux | 0:21fe3b05249f | 1 | #include "Websocket.h" |
| samux | 6:01a1eb7c0145 | 2 | #include <string> |
| samux | 0:21fe3b05249f | 3 | |
| samux | 24:15112fd8ad45 | 4 | //#define DEBUG |
| samux | 20:bb9d7ba48e6e | 5 | |
| samux | 6:01a1eb7c0145 | 6 | Websocket::Websocket(char * url, Wifly * wifi) { |
| samux | 9:9fa055ed54b4 | 7 | this->wifi = wifi; |
| samux | 16:d4518b50f653 | 8 | netif = WIF; |
| samux | 16:d4518b50f653 | 9 | fillFields(url); |
| samux | 6:01a1eb7c0145 | 10 | } |
| samux | 6:01a1eb7c0145 | 11 | |
| samux | 13:3b058372cad9 | 12 | |
| samux | 22:f4aac491ea26 | 13 | #ifdef TARGET_LPC1768 |
| samux | 13:3b058372cad9 | 14 | Websocket::Websocket(char * url) { |
| samux | 13:3b058372cad9 | 15 | server_ip = NULL; |
| samux | 16:d4518b50f653 | 16 | netif = ETH; |
| samux | 13:3b058372cad9 | 17 | eth_writeable = false; |
| samux | 13:3b058372cad9 | 18 | eth_readable = false; |
| samux | 13:3b058372cad9 | 19 | eth_connected = false; |
| samux | 13:3b058372cad9 | 20 | response_server_eth = false; |
| samux | 16:d4518b50f653 | 21 | new_msg = false; |
| samux | 16:d4518b50f653 | 22 | fillFields(url); |
| samux | 14:c5ac3e26998f | 23 | |
| samux | 16:d4518b50f653 | 24 | eth = new EthernetNetIf(); |
| samux | 16:d4518b50f653 | 25 | sock = new TCPSocket(); |
| samux | 14:c5ac3e26998f | 26 | |
| samux | 16:d4518b50f653 | 27 | EthernetErr ethErr = eth->setup(); |
| samux | 16:d4518b50f653 | 28 | #ifdef DEBUG |
| samux | 14:c5ac3e26998f | 29 | if (ethErr) { |
| samux | 14:c5ac3e26998f | 30 | printf("\r\nERROR %d in setup.\r\n", ethErr); |
| samux | 14:c5ac3e26998f | 31 | } |
| samux | 16:d4518b50f653 | 32 | #endif |
| samux | 14:c5ac3e26998f | 33 | |
| samux | 14:c5ac3e26998f | 34 | //we must use dnsresolver to find the ip address |
| samux | 14:c5ac3e26998f | 35 | if (server_ip == NULL) { |
| samux | 14:c5ac3e26998f | 36 | DNSResolver dr; |
| samux | 16:d4518b50f653 | 37 | server_ip = new IpAddr(); |
| samux | 17:1e339933c97a | 38 | *server_ip = dr.resolveName(ip_domain.c_str()); |
| samux | 16:d4518b50f653 | 39 | #ifdef DEBUG |
| samux | 22:f4aac491ea26 | 40 | printf("\r\nserver with dns=%d.%d.%d.%d\r\n", (*server_ip)[0], (*server_ip)[1], (*server_ip)[2], (*server_ip)[3]); |
| samux | 16:d4518b50f653 | 41 | #endif |
| samux | 16:d4518b50f653 | 42 | |
| samux | 14:c5ac3e26998f | 43 | } |
| samux | 15:79bfbc0ad6bc | 44 | |
| samux | 16:d4518b50f653 | 45 | IpAddr ipt = eth->getIp(); |
| samux | 16:d4518b50f653 | 46 | #ifdef DEBUG |
| samux | 14:c5ac3e26998f | 47 | printf("\r\nmbed IP Address is %d.%d.%d.%d\r\n", ipt[0], ipt[1], ipt[2], ipt[3]); |
| samux | 16:d4518b50f653 | 48 | #endif |
| samux | 15:79bfbc0ad6bc | 49 | |
| samux | 16:d4518b50f653 | 50 | sock->setOnEvent(this, &Websocket::onTCPSocketEvent); |
| samux | 13:3b058372cad9 | 51 | } |
| samux | 22:f4aac491ea26 | 52 | #endif //target |
| samux | 13:3b058372cad9 | 53 | |
| samux | 13:3b058372cad9 | 54 | |
| samux | 16:d4518b50f653 | 55 | void Websocket::fillFields(char * url) { |
| samux | 0:21fe3b05249f | 56 | char *res = NULL; |
| samux | 6:01a1eb7c0145 | 57 | char *res1 = NULL; |
| samux | 6:01a1eb7c0145 | 58 | |
| samux | 16:d4518b50f653 | 59 | char buf[50]; |
| samux | 0:21fe3b05249f | 60 | strcpy(buf, url); |
| samux | 6:01a1eb7c0145 | 61 | |
| samux | 0:21fe3b05249f | 62 | res = strtok(buf, ":"); |
| samux | 9:9fa055ed54b4 | 63 | if (strcmp(res, "ws")) { |
| samux | 16:d4518b50f653 | 64 | #ifdef DEBUG |
| samux | 6:01a1eb7c0145 | 65 | printf("\r\nFormat error: please use: \"ws://ip-or-domain[:port]/path\"\r\n\r\n"); |
| samux | 16:d4518b50f653 | 66 | #endif |
| samux | 9:9fa055ed54b4 | 67 | } else { |
| samux | 6:01a1eb7c0145 | 68 | //ip_domain and port |
| samux | 6:01a1eb7c0145 | 69 | res = strtok(NULL, "/"); |
| samux | 6:01a1eb7c0145 | 70 | |
| samux | 6:01a1eb7c0145 | 71 | //path |
| samux | 6:01a1eb7c0145 | 72 | res1 = strtok(NULL, " "); |
| samux | 6:01a1eb7c0145 | 73 | if (res1 != NULL) { |
| samux | 17:1e339933c97a | 74 | path = res1; |
| samux | 6:01a1eb7c0145 | 75 | } |
| samux | 6:01a1eb7c0145 | 76 | |
| samux | 6:01a1eb7c0145 | 77 | //ip_domain |
| samux | 6:01a1eb7c0145 | 78 | res = strtok(res, ":"); |
| samux | 9:9fa055ed54b4 | 79 | |
| samux | 7:b15978708360 | 80 | //port |
| samux | 7:b15978708360 | 81 | res1 = strtok(NULL, " "); |
| samux | 7:b15978708360 | 82 | //port |
| samux | 7:b15978708360 | 83 | if (res1 != NULL) { |
| samux | 17:1e339933c97a | 84 | port = res1; |
| samux | 7:b15978708360 | 85 | } else { |
| samux | 17:1e339933c97a | 86 | port = "80"; |
| samux | 7:b15978708360 | 87 | } |
| samux | 9:9fa055ed54b4 | 88 | |
| samux | 6:01a1eb7c0145 | 89 | if (res != NULL) { |
| samux | 17:1e339933c97a | 90 | ip_domain = res; |
| samux | 16:d4518b50f653 | 91 | |
| samux | 6:01a1eb7c0145 | 92 | //if we use ethernet, we must decode ip address or use dnsresolver |
| samux | 22:f4aac491ea26 | 93 | #ifdef TARGET_LPC1768 |
| samux | 16:d4518b50f653 | 94 | if (netif == ETH) { |
| samux | 6:01a1eb7c0145 | 95 | strcpy(buf, res); |
| samux | 14:c5ac3e26998f | 96 | |
| samux | 6:01a1eb7c0145 | 97 | //we try to decode the ip address |
| samux | 6:01a1eb7c0145 | 98 | if (buf[0] >= '0' && buf[0] <= '9') { |
| samux | 6:01a1eb7c0145 | 99 | res = strtok(buf, "."); |
| samux | 6:01a1eb7c0145 | 100 | int i = 0; |
| samux | 6:01a1eb7c0145 | 101 | int ip[4]; |
| samux | 6:01a1eb7c0145 | 102 | while (res != NULL) { |
| samux | 6:01a1eb7c0145 | 103 | ip[i] = atoi(res); |
| samux | 6:01a1eb7c0145 | 104 | res = strtok(NULL, "."); |
| samux | 6:01a1eb7c0145 | 105 | i++; |
| samux | 6:01a1eb7c0145 | 106 | } |
| samux | 16:d4518b50f653 | 107 | server_ip = new IpAddr(ip[0], ip[1], ip[2], ip[3]); |
| samux | 16:d4518b50f653 | 108 | #ifdef DEBUG |
| samux | 16:d4518b50f653 | 109 | printf("server without dns=%i.%i.%i.%i\n",(*server_ip)[0],(*server_ip)[1],(*server_ip)[2],(*server_ip)[3]); |
| samux | 16:d4518b50f653 | 110 | #endif |
| samux | 6:01a1eb7c0145 | 111 | } |
| samux | 6:01a1eb7c0145 | 112 | } |
| samux | 22:f4aac491ea26 | 113 | #endif //target |
| samux | 0:21fe3b05249f | 114 | } |
| samux | 0:21fe3b05249f | 115 | } |
| samux | 0:21fe3b05249f | 116 | } |
| samux | 0:21fe3b05249f | 117 | |
| samux | 6:01a1eb7c0145 | 118 | |
| samux | 6:01a1eb7c0145 | 119 | bool Websocket::connect() { |
| samux | 0:21fe3b05249f | 120 | char cmd[50]; |
| samux | 16:d4518b50f653 | 121 | if (netif == WIF) { |
| samux | 6:01a1eb7c0145 | 122 | //enter in cmd mode |
| samux | 23:80bffaf28bef | 123 | wifi->exit(); |
| samux | 22:f4aac491ea26 | 124 | while (!wifi->cmdMode()) { |
| samux | 16:d4518b50f653 | 125 | #ifdef DEBUG |
| samux | 6:01a1eb7c0145 | 126 | printf("cannot enter in CMD mode\r\n"); |
| samux | 16:d4518b50f653 | 127 | #endif |
| samux | 22:f4aac491ea26 | 128 | wifi->send("a\r\n"); |
| samux | 22:f4aac491ea26 | 129 | wait(0.2); |
| samux | 6:01a1eb7c0145 | 130 | wifi->exit(); |
| samux | 22:f4aac491ea26 | 131 | if (!wifi->cmdMode()) |
| samux | 22:f4aac491ea26 | 132 | return false; |
| samux | 22:f4aac491ea26 | 133 | } |
| samux | 22:f4aac491ea26 | 134 | |
| samux | 22:f4aac491ea26 | 135 | if (!wifi->send("set comm remote 0\r\n", "AOK")) { |
| samux | 22:f4aac491ea26 | 136 | #ifdef DEBUG |
| samux | 22:f4aac491ea26 | 137 | printf("Websocket::connect(): cannot set empty remote string\r\n"); |
| samux | 22:f4aac491ea26 | 138 | #endif |
| samux | 22:f4aac491ea26 | 139 | return false; |
| samux | 6:01a1eb7c0145 | 140 | } |
| samux | 6:01a1eb7c0145 | 141 | |
| samux | 6:01a1eb7c0145 | 142 | //open the connection |
| samux | 17:1e339933c97a | 143 | sprintf(cmd, "open %s %s\r\n", ip_domain.c_str(), port.c_str()); |
| samux | 25:2214f1e5d4a3 | 144 | if (!wifi->send(cmd, "OPEN")) { |
| samux | 25:2214f1e5d4a3 | 145 | if (wifi->send(cmd, "nected")) { |
| samux | 22:f4aac491ea26 | 146 | #ifdef DEBUG |
| samux | 25:2214f1e5d4a3 | 147 | printf("will try to close the conn\r\n"); |
| samux | 22:f4aac491ea26 | 148 | #endif |
| samux | 25:2214f1e5d4a3 | 149 | if (!wifi->send("close\r", "CLOS")) { |
| samux | 25:2214f1e5d4a3 | 150 | return false; |
| samux | 25:2214f1e5d4a3 | 151 | } |
| samux | 25:2214f1e5d4a3 | 152 | if (!wifi->send(cmd, "OPEN")) |
| samux | 25:2214f1e5d4a3 | 153 | return false; |
| samux | 25:2214f1e5d4a3 | 154 | } else { |
| samux | 22:f4aac491ea26 | 155 | return false; |
| samux | 22:f4aac491ea26 | 156 | } |
| samux | 22:f4aac491ea26 | 157 | } |
| samux | 6:01a1eb7c0145 | 158 | |
| samux | 6:01a1eb7c0145 | 159 | //send websocket HTTP header |
| samux | 17:1e339933c97a | 160 | sprintf(cmd, "GET /%s HTTP/1.1\r\n", path.c_str()); |
| samux | 22:f4aac491ea26 | 161 | wifi->send(cmd); |
| samux | 22:f4aac491ea26 | 162 | wifi->send("Upgrade: websocket\r\n"); |
| samux | 22:f4aac491ea26 | 163 | wifi->send("Connection: Upgrade\r\n"); |
| samux | 17:1e339933c97a | 164 | sprintf(cmd, "Host: %s:%s\r\n", ip_domain.c_str(), port.c_str()); |
| samux | 22:f4aac491ea26 | 165 | wifi->send(cmd); |
| samux | 22:f4aac491ea26 | 166 | wifi->send("Origin: null\r\n"); |
| samux | 22:f4aac491ea26 | 167 | wifi->send("Sec-WebSocket-Key: L159VM0TWUzyDxwJEIEzjw==\r\n"); |
| samux | 22:f4aac491ea26 | 168 | if (!wifi->send("Sec-WebSocket-Version: 13\r\n\r\n", "DdLWT/1JcX+nQFHebYP+rqEx5xI=")) |
| samux | 22:f4aac491ea26 | 169 | return false; |
| samux | 6:01a1eb7c0145 | 170 | |
| samux | 22:f4aac491ea26 | 171 | wifi->flush(); |
| samux | 22:f4aac491ea26 | 172 | |
| samux | 22:f4aac491ea26 | 173 | //printf("\r\nip_domain: %s\r\npath: /%s\r\nport: %s\r\n\r\n",this->ip_domain.c_str(), this->path.c_str(), this->port.c_str()); |
| samux | 6:01a1eb7c0145 | 174 | return true; |
| samux | 22:f4aac491ea26 | 175 | } |
| samux | 22:f4aac491ea26 | 176 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 177 | else if (netif == ETH) { |
| samux | 17:1e339933c97a | 178 | Host server (*server_ip, atoi(port.c_str())); |
| samux | 16:d4518b50f653 | 179 | sock->close(); |
| samux | 16:d4518b50f653 | 180 | TCPSocketErr bindErr = sock->connect(server); |
| samux | 6:01a1eb7c0145 | 181 | if (bindErr) { |
| samux | 16:d4518b50f653 | 182 | #ifdef DEBUG |
| samux | 14:c5ac3e26998f | 183 | printf("\r\nERROR binderr: %d\r\n", bindErr); |
| samux | 16:d4518b50f653 | 184 | #endif |
| samux | 6:01a1eb7c0145 | 185 | return false; |
| samux | 6:01a1eb7c0145 | 186 | } |
| samux | 6:01a1eb7c0145 | 187 | |
| samux | 6:01a1eb7c0145 | 188 | Timer tmr; |
| samux | 6:01a1eb7c0145 | 189 | tmr.start(); |
| samux | 15:79bfbc0ad6bc | 190 | |
| samux | 14:c5ac3e26998f | 191 | Timer stop; |
| samux | 14:c5ac3e26998f | 192 | stop.start(); |
| samux | 0:21fe3b05249f | 193 | |
| samux | 14:c5ac3e26998f | 194 | int i = 0; |
| samux | 6:01a1eb7c0145 | 195 | while (true) { |
| samux | 6:01a1eb7c0145 | 196 | Net::poll(); |
| samux | 15:79bfbc0ad6bc | 197 | if (stop.read() > 3) |
| samux | 14:c5ac3e26998f | 198 | return false; |
| samux | 22:f4aac491ea26 | 199 | if (tmr.read() > 0.05) { |
| samux | 6:01a1eb7c0145 | 200 | tmr.reset(); |
| samux | 6:01a1eb7c0145 | 201 | if (eth_connected) { |
| samux | 6:01a1eb7c0145 | 202 | switch (i) { |
| samux | 6:01a1eb7c0145 | 203 | case 0: |
| samux | 17:1e339933c97a | 204 | sprintf(cmd, "GET /%s HTTP/1.1\r\n", path.c_str()); |
| samux | 16:d4518b50f653 | 205 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 206 | i++; |
| samux | 6:01a1eb7c0145 | 207 | break; |
| samux | 6:01a1eb7c0145 | 208 | case 1: |
| samux | 17:1e339933c97a | 209 | sprintf(cmd, "Host: %s:%s\r\n", ip_domain.c_str(), port.c_str()); |
| samux | 16:d4518b50f653 | 210 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 211 | i++; |
| samux | 6:01a1eb7c0145 | 212 | break; |
| samux | 6:01a1eb7c0145 | 213 | case 2: |
| samux | 6:01a1eb7c0145 | 214 | sprintf(cmd, "Upgrade: WebSocket\r\n"); |
| samux | 16:d4518b50f653 | 215 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 216 | i++; |
| samux | 6:01a1eb7c0145 | 217 | break; |
| samux | 6:01a1eb7c0145 | 218 | case 3: |
| samux | 22:f4aac491ea26 | 219 | sprintf(cmd, "Origin: null\r\n"); |
| samux | 16:d4518b50f653 | 220 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 221 | i++; |
| samux | 6:01a1eb7c0145 | 222 | break; |
| samux | 6:01a1eb7c0145 | 223 | case 4: |
| samux | 6:01a1eb7c0145 | 224 | sprintf(cmd, "Connection: Upgrade\r\n"); |
| samux | 16:d4518b50f653 | 225 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 226 | i++; |
| samux | 6:01a1eb7c0145 | 227 | break; |
| samux | 6:01a1eb7c0145 | 228 | case 5: |
| samux | 22:f4aac491ea26 | 229 | sprintf(cmd, "Sec-WebSocket-Key: L159VM0TWUzyDxwJEIEzjw==\r\n"); |
| samux | 16:d4518b50f653 | 230 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 231 | i++; |
| samux | 6:01a1eb7c0145 | 232 | break; |
| samux | 6:01a1eb7c0145 | 233 | case 6: |
| samux | 22:f4aac491ea26 | 234 | sprintf(cmd, "Sec-WebSocket-Version: 13\r\n\r\n"); |
| samux | 16:d4518b50f653 | 235 | sock->send(cmd, strlen(cmd)); |
| samux | 6:01a1eb7c0145 | 236 | i++; |
| samux | 6:01a1eb7c0145 | 237 | break; |
| samux | 6:01a1eb7c0145 | 238 | case 7: |
| samux | 9:9fa055ed54b4 | 239 | if (response_server_eth) |
| samux | 9:9fa055ed54b4 | 240 | i++; |
| samux | 9:9fa055ed54b4 | 241 | else |
| samux | 9:9fa055ed54b4 | 242 | break; |
| samux | 9:9fa055ed54b4 | 243 | |
| samux | 6:01a1eb7c0145 | 244 | default: |
| samux | 6:01a1eb7c0145 | 245 | break; |
| samux | 6:01a1eb7c0145 | 246 | } |
| samux | 6:01a1eb7c0145 | 247 | } |
| samux | 22:f4aac491ea26 | 248 | if (i==8) { |
| samux | 22:f4aac491ea26 | 249 | #ifdef DEBUG |
| samux | 17:1e339933c97a | 250 | printf("\r\nip_domain: %s\r\npath: /%s\r\nport: %s\r\n\r\n",this->ip_domain.c_str(), this->path.c_str(), this->port.c_str()); |
| samux | 22:f4aac491ea26 | 251 | #endif |
| samux | 6:01a1eb7c0145 | 252 | return true; |
| samux | 6:01a1eb7c0145 | 253 | } |
| samux | 6:01a1eb7c0145 | 254 | } |
| samux | 6:01a1eb7c0145 | 255 | } |
| samux | 0:21fe3b05249f | 256 | } |
| samux | 22:f4aac491ea26 | 257 | #endif //target |
| samux | 16:d4518b50f653 | 258 | //the program shouldn't be here |
| samux | 16:d4518b50f653 | 259 | return false; |
| samux | 0:21fe3b05249f | 260 | } |
| samux | 0:21fe3b05249f | 261 | |
| samux | 22:f4aac491ea26 | 262 | void Websocket::sendLength(uint32_t len) { |
| samux | 22:f4aac491ea26 | 263 | if (len < 126) { |
| samux | 22:f4aac491ea26 | 264 | sendChar(len | (1<<7)); |
| samux | 22:f4aac491ea26 | 265 | } else if (len < 65535) { |
| samux | 22:f4aac491ea26 | 266 | sendChar(126 | (1<<7)); |
| samux | 23:80bffaf28bef | 267 | sendChar((len >> 8) & 0xff); |
| samux | 22:f4aac491ea26 | 268 | sendChar(len & 0xff); |
| samux | 22:f4aac491ea26 | 269 | } else { |
| samux | 22:f4aac491ea26 | 270 | sendChar(127 | (1<<7)); |
| samux | 22:f4aac491ea26 | 271 | for (int i = 0; i < 8; i++) { |
| samux | 22:f4aac491ea26 | 272 | sendChar((len >> i*8) & 0xff); |
| samux | 22:f4aac491ea26 | 273 | } |
| samux | 6:01a1eb7c0145 | 274 | } |
| samux | 0:21fe3b05249f | 275 | } |
| samux | 0:21fe3b05249f | 276 | |
| samux | 22:f4aac491ea26 | 277 | void Websocket::sendChar(uint8_t c) { |
| samux | 22:f4aac491ea26 | 278 | if (netif == WIF) { |
| samux | 22:f4aac491ea26 | 279 | wifi->putc(c); |
| samux | 22:f4aac491ea26 | 280 | } |
| samux | 22:f4aac491ea26 | 281 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 282 | else if (netif == ETH) { |
| samux | 22:f4aac491ea26 | 283 | Net::poll(); |
| samux | 22:f4aac491ea26 | 284 | sock->send((const char *)&c, 1); |
| samux | 22:f4aac491ea26 | 285 | } |
| samux | 22:f4aac491ea26 | 286 | #endif |
| samux | 22:f4aac491ea26 | 287 | } |
| samux | 22:f4aac491ea26 | 288 | |
| samux | 22:f4aac491ea26 | 289 | void Websocket::sendOpcode(uint8_t opcode) { |
| samux | 22:f4aac491ea26 | 290 | sendChar(0x80 | (opcode & 0x0f)); |
| samux | 22:f4aac491ea26 | 291 | } |
| samux | 22:f4aac491ea26 | 292 | |
| samux | 22:f4aac491ea26 | 293 | void Websocket::sendMask() { |
| samux | 22:f4aac491ea26 | 294 | for (int i = 0; i < 4; i++) { |
| samux | 22:f4aac491ea26 | 295 | sendChar(0); |
| samux | 22:f4aac491ea26 | 296 | } |
| samux | 22:f4aac491ea26 | 297 | } |
| samux | 22:f4aac491ea26 | 298 | |
| samux | 22:f4aac491ea26 | 299 | void Websocket::send(char * str) { |
| samux | 22:f4aac491ea26 | 300 | sendOpcode(0x01); |
| samux | 22:f4aac491ea26 | 301 | sendLength(strlen(str)); |
| samux | 22:f4aac491ea26 | 302 | sendMask(); |
| samux | 22:f4aac491ea26 | 303 | if (netif == WIF) { |
| samux | 25:2214f1e5d4a3 | 304 | wifi->send(str, NULL); |
| samux | 22:f4aac491ea26 | 305 | } |
| samux | 22:f4aac491ea26 | 306 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 307 | else if (netif == ETH) { |
| samux | 22:f4aac491ea26 | 308 | Net::poll(); |
| samux | 22:f4aac491ea26 | 309 | sock->send(str, strlen(str)); |
| samux | 22:f4aac491ea26 | 310 | } |
| samux | 22:f4aac491ea26 | 311 | #endif //target |
| samux | 22:f4aac491ea26 | 312 | } |
| samux | 22:f4aac491ea26 | 313 | |
| samux | 22:f4aac491ea26 | 314 | |
| samux | 22:f4aac491ea26 | 315 | |
| samux | 6:01a1eb7c0145 | 316 | bool Websocket::read(char * message) { |
| samux | 0:21fe3b05249f | 317 | int i = 0; |
| samux | 22:f4aac491ea26 | 318 | int length_buffer = 0; |
| samux | 23:80bffaf28bef | 319 | uint64_t len_msg; |
| samux | 22:f4aac491ea26 | 320 | char opcode = 0; |
| samux | 22:f4aac491ea26 | 321 | char mask[4] = {0, 0, 0, 0}; |
| samux | 22:f4aac491ea26 | 322 | Timer tmr; |
| samux | 6:01a1eb7c0145 | 323 | |
| samux | 16:d4518b50f653 | 324 | if (netif == WIF) { |
| samux | 22:f4aac491ea26 | 325 | length_buffer = wifi->readable(); |
| samux | 22:f4aac491ea26 | 326 | |
| samux | 22:f4aac491ea26 | 327 | if (length_buffer > 1) { |
| samux | 22:f4aac491ea26 | 328 | // read the opcode |
| samux | 22:f4aac491ea26 | 329 | tmr.start(); |
| samux | 22:f4aac491ea26 | 330 | while (true) { |
| samux | 22:f4aac491ea26 | 331 | if (tmr.read() > 3) { |
| samux | 22:f4aac491ea26 | 332 | return false; |
| samux | 22:f4aac491ea26 | 333 | } |
| samux | 22:f4aac491ea26 | 334 | if (wifi->readable()) { |
| samux | 22:f4aac491ea26 | 335 | opcode = wifi->getc(); |
| samux | 22:f4aac491ea26 | 336 | } |
| samux | 22:f4aac491ea26 | 337 | if (opcode == 0x81) { |
| samux | 22:f4aac491ea26 | 338 | break; |
| samux | 22:f4aac491ea26 | 339 | } |
| samux | 22:f4aac491ea26 | 340 | } |
| samux | 22:f4aac491ea26 | 341 | #ifdef DEBUG |
| samux | 22:f4aac491ea26 | 342 | printf("opcode: 0x%X\r\n", opcode); |
| samux | 22:f4aac491ea26 | 343 | #endif |
| samux | 22:f4aac491ea26 | 344 | len_msg = wifi->getc() & 0x7f; |
| samux | 22:f4aac491ea26 | 345 | if (len_msg == 126) { |
| samux | 23:80bffaf28bef | 346 | len_msg = (wifi->getc() << 8); |
| samux | 23:80bffaf28bef | 347 | len_msg += wifi->getc(); |
| samux | 22:f4aac491ea26 | 348 | } else if (len_msg == 127) { |
| samux | 22:f4aac491ea26 | 349 | len_msg = 0; |
| samux | 22:f4aac491ea26 | 350 | for (int i = 0; i < 8; i++) { |
| samux | 23:80bffaf28bef | 351 | len_msg += (wifi->getc() << (7-i)*8); |
| samux | 22:f4aac491ea26 | 352 | } |
| samux | 22:f4aac491ea26 | 353 | } |
| samux | 23:80bffaf28bef | 354 | if (len_msg == 0) { |
| samux | 22:f4aac491ea26 | 355 | return false; |
| samux | 22:f4aac491ea26 | 356 | } |
| samux | 22:f4aac491ea26 | 357 | #ifdef DEBUG |
| samux | 23:80bffaf28bef | 358 | printf("length: %lld\r\n", len_msg); |
| samux | 22:f4aac491ea26 | 359 | #endif |
| samux | 22:f4aac491ea26 | 360 | if ((len_msg & 0x80)) { |
| samux | 23:80bffaf28bef | 361 | #ifdef DEBUG |
| samux | 23:80bffaf28bef | 362 | printf("will read mask\r\n"); |
| samux | 23:80bffaf28bef | 363 | #endif |
| samux | 23:80bffaf28bef | 364 | for (int i = 0; i < 4; i++) { |
| samux | 22:f4aac491ea26 | 365 | mask[i] = wifi->getc(); |
| samux | 23:80bffaf28bef | 366 | #ifdef DEBUG |
| samux | 23:80bffaf28bef | 367 | printf("mask[%d]: %d\r\n", i, mask[i]); |
| samux | 23:80bffaf28bef | 368 | #endif |
| samux | 23:80bffaf28bef | 369 | } |
| samux | 23:80bffaf28bef | 370 | } else { |
| samux | 23:80bffaf28bef | 371 | #ifdef DEBUG |
| samux | 23:80bffaf28bef | 372 | printf("len not 0x80\r\n"); |
| samux | 23:80bffaf28bef | 373 | #endif |
| samux | 22:f4aac491ea26 | 374 | } |
| samux | 23:80bffaf28bef | 375 | } else { |
| samux | 16:d4518b50f653 | 376 | return false; |
| samux | 23:80bffaf28bef | 377 | } |
| samux | 15:79bfbc0ad6bc | 378 | |
| samux | 22:f4aac491ea26 | 379 | |
| samux | 22:f4aac491ea26 | 380 | for (i = 0; i < len_msg; i++) { |
| samux | 22:f4aac491ea26 | 381 | message[i] = wifi->getc() ^ mask[i % 4]; |
| samux | 15:79bfbc0ad6bc | 382 | } |
| samux | 16:d4518b50f653 | 383 | |
| samux | 22:f4aac491ea26 | 384 | message[len_msg] = 0; |
| samux | 22:f4aac491ea26 | 385 | return true; |
| samux | 22:f4aac491ea26 | 386 | } |
| samux | 22:f4aac491ea26 | 387 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 388 | else if (netif == ETH) { |
| samux | 16:d4518b50f653 | 389 | |
| samux | 22:f4aac491ea26 | 390 | uint32_t index = 0; |
| samux | 15:79bfbc0ad6bc | 391 | Net::poll(); |
| samux | 9:9fa055ed54b4 | 392 | |
| samux | 16:d4518b50f653 | 393 | if (new_msg) { |
| samux | 22:f4aac491ea26 | 394 | tmr.start(); |
| samux | 22:f4aac491ea26 | 395 | // read the opcode |
| samux | 22:f4aac491ea26 | 396 | while (true) { |
| samux | 22:f4aac491ea26 | 397 | if (tmr.read() > 3) { |
| samux | 22:f4aac491ea26 | 398 | return false; |
| samux | 22:f4aac491ea26 | 399 | } |
| samux | 22:f4aac491ea26 | 400 | opcode = eth_rx[index++]; |
| samux | 22:f4aac491ea26 | 401 | if (opcode == 0x81) { |
| samux | 22:f4aac491ea26 | 402 | break; |
| samux | 22:f4aac491ea26 | 403 | } |
| samux | 22:f4aac491ea26 | 404 | } |
| samux | 22:f4aac491ea26 | 405 | #ifdef DEBUG |
| samux | 22:f4aac491ea26 | 406 | printf("opcode: 0x%X\r\n", opcode); |
| samux | 22:f4aac491ea26 | 407 | #endif |
| samux | 22:f4aac491ea26 | 408 | |
| samux | 22:f4aac491ea26 | 409 | len_msg = eth_rx[index++] & 0x7f; |
| samux | 22:f4aac491ea26 | 410 | if (len_msg == 126) { |
| samux | 23:80bffaf28bef | 411 | len_msg = (eth_rx[index++] << 8); |
| samux | 23:80bffaf28bef | 412 | len_msg += eth_rx[index++]; |
| samux | 22:f4aac491ea26 | 413 | } else if (len_msg == 127) { |
| samux | 22:f4aac491ea26 | 414 | len_msg = 0; |
| samux | 22:f4aac491ea26 | 415 | for (int i = 0; i < 8; i++) { |
| samux | 23:80bffaf28bef | 416 | len_msg += eth_rx[index++] << (7-i)*8; |
| samux | 22:f4aac491ea26 | 417 | } |
| samux | 22:f4aac491ea26 | 418 | } |
| samux | 23:80bffaf28bef | 419 | if (len_msg == 0) { |
| samux | 16:d4518b50f653 | 420 | return false; |
| samux | 16:d4518b50f653 | 421 | } |
| samux | 22:f4aac491ea26 | 422 | #ifdef DEBUG |
| samux | 23:80bffaf28bef | 423 | printf("length: %lld\r\n", len_msg); |
| samux | 22:f4aac491ea26 | 424 | #endif |
| samux | 22:f4aac491ea26 | 425 | if ((len_msg & 0x80)) { |
| samux | 22:f4aac491ea26 | 426 | for (int i = 0; i < 4; i++) |
| samux | 22:f4aac491ea26 | 427 | mask[i] = eth_rx[index++]; |
| samux | 16:d4518b50f653 | 428 | } |
| samux | 22:f4aac491ea26 | 429 | |
| samux | 22:f4aac491ea26 | 430 | for (i = 0; i < len_msg; i++) { |
| samux | 22:f4aac491ea26 | 431 | message[i] = eth_rx[index++] ^ mask[i % 4]; |
| samux | 22:f4aac491ea26 | 432 | } |
| samux | 22:f4aac491ea26 | 433 | |
| samux | 22:f4aac491ea26 | 434 | message[len_msg] = 0; |
| samux | 16:d4518b50f653 | 435 | new_msg = false; |
| samux | 16:d4518b50f653 | 436 | return true; |
| samux | 9:9fa055ed54b4 | 437 | } |
| samux | 16:d4518b50f653 | 438 | return false; |
| samux | 0:21fe3b05249f | 439 | } |
| samux | 22:f4aac491ea26 | 440 | #endif //target |
| samux | 22:f4aac491ea26 | 441 | //the program shouldn't be here |
| samux | 16:d4518b50f653 | 442 | return false; |
| samux | 0:21fe3b05249f | 443 | } |
| samux | 0:21fe3b05249f | 444 | |
| samux | 6:01a1eb7c0145 | 445 | bool Websocket::close() { |
| samux | 23:80bffaf28bef | 446 | sendOpcode(0x08); |
| samux | 23:80bffaf28bef | 447 | sendLength(0); |
| samux | 23:80bffaf28bef | 448 | sendMask(); |
| samux | 16:d4518b50f653 | 449 | if (netif == WIF) { |
| samux | 25:2214f1e5d4a3 | 450 | |
| samux | 23:80bffaf28bef | 451 | wait(0.25); |
| samux | 19:ca8c5ad59850 | 452 | if (!wifi->cmdMode()) { |
| samux | 16:d4518b50f653 | 453 | #ifdef DEBUG |
| samux | 9:9fa055ed54b4 | 454 | printf("Websocket::close: cannot enter in cmd mode\r\n"); |
| samux | 16:d4518b50f653 | 455 | #endif |
| samux | 9:9fa055ed54b4 | 456 | return false; |
| samux | 9:9fa055ed54b4 | 457 | } |
| samux | 23:80bffaf28bef | 458 | wait(0.25); |
| samux | 6:01a1eb7c0145 | 459 | |
| samux | 25:2214f1e5d4a3 | 460 | wifi->send("close\r", NULL); |
| samux | 6:01a1eb7c0145 | 461 | |
| samux | 9:9fa055ed54b4 | 462 | if (!wifi->exit()) |
| samux | 9:9fa055ed54b4 | 463 | return false; |
| samux | 22:f4aac491ea26 | 464 | } |
| samux | 22:f4aac491ea26 | 465 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 466 | else if (netif == ETH) { |
| samux | 23:80bffaf28bef | 467 | #ifdef TARGET_LPC1768 |
| samux | 23:80bffaf28bef | 468 | Net::poll(); |
| samux | 23:80bffaf28bef | 469 | #endif //target |
| samux | 16:d4518b50f653 | 470 | |
| samux | 16:d4518b50f653 | 471 | if (sock->close()) |
| samux | 9:9fa055ed54b4 | 472 | return false; |
| samux | 16:d4518b50f653 | 473 | return true; |
| samux | 9:9fa055ed54b4 | 474 | } |
| samux | 22:f4aac491ea26 | 475 | #endif //target |
| samux | 16:d4518b50f653 | 476 | //the program shouldn't be here |
| samux | 16:d4518b50f653 | 477 | return false; |
| samux | 0:21fe3b05249f | 478 | } |
| samux | 0:21fe3b05249f | 479 | |
| samux | 0:21fe3b05249f | 480 | |
| samux | 0:21fe3b05249f | 481 | |
| samux | 6:01a1eb7c0145 | 482 | bool Websocket::connected() { |
| samux | 16:d4518b50f653 | 483 | if (netif == WIF) { |
| samux | 6:01a1eb7c0145 | 484 | char str[10]; |
| samux | 6:01a1eb7c0145 | 485 | |
| samux | 22:f4aac491ea26 | 486 | // we have to wait at least 0.25s to enter in cmd mode whan we was sending tcp packets |
| samux | 6:01a1eb7c0145 | 487 | wait(0.25); |
| samux | 19:ca8c5ad59850 | 488 | if (!wifi->cmdMode()) { |
| samux | 16:d4518b50f653 | 489 | #ifdef DEBUG |
| samux | 6:01a1eb7c0145 | 490 | printf("Websocket::connected: cannot enter in cmd mode\r\n"); |
| samux | 16:d4518b50f653 | 491 | #endif |
| samux | 0:21fe3b05249f | 492 | return false; |
| samux | 3:9b00db719afa | 493 | } |
| samux | 6:01a1eb7c0145 | 494 | wait(0.25); |
| samux | 6:01a1eb7c0145 | 495 | |
| samux | 25:2214f1e5d4a3 | 496 | wifi->send("show c\r\n", NULL, str); |
| samux | 22:f4aac491ea26 | 497 | #ifdef DEBUG |
| samux | 22:f4aac491ea26 | 498 | printf("Websocket::connected: str: %s\r\n", str); |
| samux | 22:f4aac491ea26 | 499 | #endif |
| samux | 6:01a1eb7c0145 | 500 | |
| samux | 6:01a1eb7c0145 | 501 | if (str[3] == '1') { |
| samux | 6:01a1eb7c0145 | 502 | if (!wifi->exit()) { |
| samux | 16:d4518b50f653 | 503 | #ifdef DEBUG |
| samux | 6:01a1eb7c0145 | 504 | printf("Websocket::connected: cannot exit\r\n"); |
| samux | 16:d4518b50f653 | 505 | #endif |
| samux | 6:01a1eb7c0145 | 506 | return false; |
| samux | 6:01a1eb7c0145 | 507 | } |
| samux | 6:01a1eb7c0145 | 508 | return true; |
| samux | 6:01a1eb7c0145 | 509 | } |
| samux | 16:d4518b50f653 | 510 | if (!wifi->exit()) { |
| samux | 16:d4518b50f653 | 511 | #ifdef DEBUG |
| samux | 6:01a1eb7c0145 | 512 | printf("Websocket::connected: cannot exit\r\n"); |
| samux | 16:d4518b50f653 | 513 | #endif |
| samux | 16:d4518b50f653 | 514 | } |
| samux | 6:01a1eb7c0145 | 515 | return false; |
| samux | 22:f4aac491ea26 | 516 | } |
| samux | 22:f4aac491ea26 | 517 | #ifdef TARGET_LPC1768 |
| samux | 22:f4aac491ea26 | 518 | else if (netif == ETH) { |
| samux | 6:01a1eb7c0145 | 519 | return eth_connected; |
| samux | 16:d4518b50f653 | 520 | } |
| samux | 22:f4aac491ea26 | 521 | #endif //target |
| samux | 16:d4518b50f653 | 522 | //the program shouldn't be here |
| samux | 16:d4518b50f653 | 523 | return false; |
| samux | 6:01a1eb7c0145 | 524 | } |
| samux | 6:01a1eb7c0145 | 525 | |
| samux | 23:80bffaf28bef | 526 | |
| samux | 22:f4aac491ea26 | 527 | std::string Websocket::getPath() { |
| samux | 17:1e339933c97a | 528 | return path; |
| samux | 17:1e339933c97a | 529 | } |
| samux | 17:1e339933c97a | 530 | |
| samux | 6:01a1eb7c0145 | 531 | |
| samux | 6:01a1eb7c0145 | 532 | |
| samux | 6:01a1eb7c0145 | 533 | |
| samux | 22:f4aac491ea26 | 534 | #ifdef TARGET_LPC1768 |
| samux | 6:01a1eb7c0145 | 535 | void Websocket::onTCPSocketEvent(TCPSocketEvent e) { |
| samux | 9:9fa055ed54b4 | 536 | if (e == TCPSOCKET_CONNECTED) { |
| samux | 9:9fa055ed54b4 | 537 | eth_connected = true; |
| samux | 16:d4518b50f653 | 538 | #ifdef DEBUG |
| samux | 9:9fa055ed54b4 | 539 | printf("TCP Socket Connected\r\n"); |
| samux | 16:d4518b50f653 | 540 | #endif |
| samux | 12:1f6b9451a608 | 541 | } else if (e == TCPSOCKET_WRITEABLE) { |
| samux | 12:1f6b9451a608 | 542 | } else if (e == TCPSOCKET_READABLE) { |
| samux | 16:d4518b50f653 | 543 | int len = sock->recv(eth_rx, 512); |
| samux | 9:9fa055ed54b4 | 544 | eth_rx[len] = 0; |
| samux | 16:d4518b50f653 | 545 | new_msg = true; |
| samux | 9:9fa055ed54b4 | 546 | if (!response_server_eth) { |
| samux | 9:9fa055ed54b4 | 547 | string checking; |
| samux | 9:9fa055ed54b4 | 548 | size_t found = string::npos; |
| samux | 9:9fa055ed54b4 | 549 | checking = eth_rx; |
| samux | 22:f4aac491ea26 | 550 | found = checking.find("DdLWT/1JcX+nQFHebYP+rqEx5xI="); |
| samux | 9:9fa055ed54b4 | 551 | if (found != string::npos) |
| samux | 9:9fa055ed54b4 | 552 | response_server_eth = true; |
| samux | 9:9fa055ed54b4 | 553 | } |
| samux | 12:1f6b9451a608 | 554 | } else { |
| samux | 16:d4518b50f653 | 555 | #ifdef DEBUG |
| samux | 9:9fa055ed54b4 | 556 | printf("TCP Socket Fail\r\n"); |
| samux | 16:d4518b50f653 | 557 | #endif |
| samux | 9:9fa055ed54b4 | 558 | eth_connected = false; |
| samux | 0:21fe3b05249f | 559 | } |
| samux | 6:01a1eb7c0145 | 560 | } |
| samux | 22:f4aac491ea26 | 561 | #endif //target |
| samux | 6:01a1eb7c0145 | 562 | |
| samux | 6:01a1eb7c0145 | 563 |