Suga koubou / GSwifiInterface_ap_webcam

private fork

Fork of GSwifiInterface by gs fan

GSwifi/GSwifi_httpd.cpp@16:105b56570533, 2014-03-04 (annotated)

Committer:
gsfan
Date:
Tue Mar 04 15:01:38 2014 +0000
Revision:
16:105b56570533
Parent:
15:086d1a33a197
Child:
18:20970aec3ad3
bug fix (cause of hard fault)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsfan 12:057089026a20 1 /* Copyright (C) 2013 gsfan, MIT License
gsfan 12:057089026a20 2 *
gsfan 12:057089026a20 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
gsfan 12:057089026a20 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
gsfan 12:057089026a20 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
gsfan 12:057089026a20 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
gsfan 12:057089026a20 7 * furnished to do so, subject to the following conditions:
gsfan 12:057089026a20 8 *
gsfan 12:057089026a20 9 * The above copyright notice and this permission notice shall be included in all copies or
gsfan 12:057089026a20 10 * substantial portions of the Software.
gsfan 12:057089026a20 11 *
gsfan 12:057089026a20 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
gsfan 12:057089026a20 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
gsfan 12:057089026a20 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
gsfan 12:057089026a20 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gsfan 12:057089026a20 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
gsfan 12:057089026a20 17 */
gsfan 12:057089026a20 18
gsfan 12:057089026a20 19 #include "GSwifi.h"
gsfan 12:057089026a20 20
gsfan 12:057089026a20 21 #ifdef CFG_ENABLE_HTTPD
gsfan 12:057089026a20 22
gsfan 12:057089026a20 23 int GSwifi::httpd (int port) {
gsfan 12:057089026a20 24 int i;
gsfan 12:057089026a20 25
gsfan 12:057089026a20 26 if (!isAssociated() || _state.status != STAT_READY) return -1;
gsfan 12:057089026a20 27
gsfan 12:057089026a20 28 memset(&_httpd, 0, sizeof(_httpd));
gsfan 12:057089026a20 29 for (i = 0; i < 16; i ++) {
gsfan 12:057089026a20 30 _httpd[i].mode = HTTPDMODE_REQUEST;
gsfan 12:057089026a20 31 }
gsfan 12:057089026a20 32 _handler_count = 0;
gsfan 12:057089026a20 33
gsfan 12:057089026a20 34 _httpd_cid = listen(PROTO_TCP, port);
gsfan 12:057089026a20 35 if (_httpd_cid < 0) return -1;
gsfan 12:057089026a20 36
gsfan 12:057089026a20 37 _con[_httpd_cid].protocol = PROTO_HTTPD;
gsfan 12:057089026a20 38 return _httpd_cid;
gsfan 12:057089026a20 39 }
gsfan 12:057089026a20 40
gsfan 12:057089026a20 41 void GSwifi::httpdRecvData (int cid, char c) {
gsfan 12:057089026a20 42
gsfan 12:057089026a20 43 switch (_httpd[cid].mode) {
gsfan 12:057089026a20 44 case HTTPDMODE_REQUEST:
gsfan 16:105b56570533 45 #ifndef CFG_ENABLE_RTOS
gsfan 16:105b56570533 46 if (_con[cid].buf == NULL) {
gsfan 12:057089026a20 47 _con[cid].buf = new CircBuffer<char>(CFG_DATA_SIZE);
gsfan 16:105b56570533 48 }
gsfan 16:105b56570533 49 #endif
gsfan 12:057089026a20 50 _httpd[cid].buf = _con[cid].buf;
gsfan 16:105b56570533 51 if (_httpd[cid].buf != NULL) {
gsfan 16:105b56570533 52 _httpd[cid].buf->flush();
gsfan 16:105b56570533 53 }
gsfan 15:086d1a33a197 54 _httpd[cid].keepalive = 0;
gsfan 12:057089026a20 55 if ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
gsfan 16:105b56570533 56 if (_httpd[cid].buf != NULL) {
gsfan 16:105b56570533 57 _httpd[cid].buf->queue(c);
gsfan 16:105b56570533 58 }
gsfan 12:057089026a20 59 _httpd[cid].mode = HTTPDMODE_REQUEST_STR;
gsfan 12:057089026a20 60 }
gsfan 12:057089026a20 61 break;
gsfan 12:057089026a20 62 case HTTPDMODE_REQUEST_STR:
gsfan 12:057089026a20 63 switch (c) {
gsfan 12:057089026a20 64 case 0:
gsfan 12:057089026a20 65 case 0x0d: // CR
gsfan 12:057089026a20 66 break;
gsfan 12:057089026a20 67 case 0x0a: // LF
gsfan 12:057089026a20 68 if (httpdParseRequest(cid)) {
gsfan 12:057089026a20 69 _httpd[cid].mode = HTTPDMODE_REQUEST_STR;
gsfan 12:057089026a20 70 } else {
gsfan 12:057089026a20 71 _httpd[cid].mode = HTTPDMODE_HEADER;
gsfan 12:057089026a20 72 }
gsfan 12:057089026a20 73 _httpd[cid].enter = 0;
gsfan 12:057089026a20 74 break;
gsfan 12:057089026a20 75 default:
gsfan 16:105b56570533 76 if (_httpd[cid].buf != NULL) {
gsfan 16:105b56570533 77 _httpd[cid].buf->queue(c);
gsfan 16:105b56570533 78 }
gsfan 12:057089026a20 79 break;
gsfan 12:057089026a20 80 }
gsfan 12:057089026a20 81 break;
gsfan 12:057089026a20 82 case HTTPDMODE_HEADER:
gsfan 12:057089026a20 83 switch (c) {
gsfan 12:057089026a20 84 case 0:
gsfan 12:057089026a20 85 case 0x0d: // CR
gsfan 12:057089026a20 86 break;
gsfan 12:057089026a20 87 case 0x0a: // LF
gsfan 16:105b56570533 88 if (_httpd[cid].buf != NULL && _httpd[cid].buf->available() == 0) {
gsfan 12:057089026a20 89 // if ((_httpd[cid].enter == 0x0d && c == 0x0a) || (_httpd[cid].enter == 0x0a && c == 0x0a)) {
gsfan 12:057089026a20 90 if (_httpd[cid].enter == 0x0a && c == 0x0a) {
gsfan 12:057089026a20 91 _httpd[cid].buf->flush();
gsfan 12:057089026a20 92 #ifdef CFG_ENABLE_WEBSOCKET
gsfan 12:057089026a20 93 if (_httpd[cid].websocket) {
gsfan 15:086d1a33a197 94 INFO("MODE_WEBSOCKET_BEGIN");
gsfan 15:086d1a33a197 95 _httpd[cid].mode = HTTPDMODE_WEBSOCKET_BEGIN;
gsfan 12:057089026a20 96 } else
gsfan 12:057089026a20 97 #endif
gsfan 12:057089026a20 98 if (_httpd[cid].length) {
gsfan 12:057089026a20 99 INFO("MODE_BODY");
gsfan 12:057089026a20 100 _httpd[cid].mode = HTTPDMODE_BODY;
gsfan 12:057089026a20 101 } else {
gsfan 12:057089026a20 102 INFO("MODE_ENTER");
gsfan 12:057089026a20 103 _httpd[cid].mode = HTTPDMODE_ENTER;
gsfan 12:057089026a20 104 _con[cid].received = true;
gsfan 12:057089026a20 105 }
gsfan 12:057089026a20 106 }
gsfan 12:057089026a20 107 _httpd[cid].buf->flush();
gsfan 12:057089026a20 108 _httpd[cid].enter = c;
gsfan 12:057089026a20 109 break;
gsfan 12:057089026a20 110 }
gsfan 12:057089026a20 111
gsfan 12:057089026a20 112 httpdParseHeader(cid);
gsfan 12:057089026a20 113 _httpd[cid].enter = c;
gsfan 12:057089026a20 114 break;
gsfan 12:057089026a20 115 default:
gsfan 16:105b56570533 116 if (_httpd[cid].buf != NULL) {
gsfan 16:105b56570533 117 _httpd[cid].buf->queue(c);
gsfan 16:105b56570533 118 }
gsfan 12:057089026a20 119 _httpd[cid].enter = 0;
gsfan 12:057089026a20 120 break;
gsfan 12:057089026a20 121 }
gsfan 12:057089026a20 122 break;
gsfan 12:057089026a20 123 case HTTPDMODE_BODY:
gsfan 16:105b56570533 124 if (_httpd[cid].buf != NULL) {
gsfan 16:105b56570533 125 _httpd[cid].buf->queue(c);
gsfan 16:105b56570533 126 if (_httpd[cid].buf->available() >= _httpd[cid].length) {
gsfan 16:105b56570533 127 _httpd[cid].mode = HTTPDMODE_ENTER;
gsfan 16:105b56570533 128 _con[cid].received = true;
gsfan 16:105b56570533 129 }
gsfan 12:057089026a20 130 }
gsfan 12:057089026a20 131 break;
gsfan 12:057089026a20 132 #ifdef CFG_ENABLE_WEBSOCKET
gsfan 12:057089026a20 133 case HTTPDMODE_WEBSOCKET:
gsfan 12:057089026a20 134 case HTTPDMODE_WEBSOCKET_MASK:
gsfan 12:057089026a20 135 case HTTPDMODE_WEBSOCKET_BODY:
gsfan 12:057089026a20 136 wsRecvData(cid, c);
gsfan 12:057089026a20 137 break;
gsfan 12:057089026a20 138 #endif
gsfan 12:057089026a20 139 }
gsfan 12:057089026a20 140 }
gsfan 12:057089026a20 141
gsfan 12:057089026a20 142 void GSwifi::httpdPoll () {
gsfan 12:057089026a20 143 for (int cid = 0; cid < 16; cid ++) {
gsfan 12:057089026a20 144 if (isConnected(cid) && _con[cid].protocol == PROTO_HTTPD) {
gsfan 12:057089026a20 145
gsfan 12:057089026a20 146 if (_httpd[cid].mode == HTTPDMODE_ENTER) {
gsfan 12:057089026a20 147 int i = httpdGetHandler(_httpd[cid].uri);
gsfan 12:057089026a20 148 if (i >= 0) {
gsfan 12:057089026a20 149 if (_httpd_handler[i].dir) {
gsfan 12:057089026a20 150 // file
gsfan 12:057089026a20 151 httpdFile(cid, _httpd_handler[i].dir);
gsfan 12:057089026a20 152 } else
gsfan 15:086d1a33a197 153 if (_httpd_handler[i].func && !_httpd_handler[i].ws) {
gsfan 12:057089026a20 154 // cgi
gsfan 12:057089026a20 155 _httpd_handler[i].func(cid);
gsfan 12:057089026a20 156 // _httpd[cid].keepalive = 0;
gsfan 12:057089026a20 157 } else {
gsfan 12:057089026a20 158 httpdError(cid, 403);
gsfan 12:057089026a20 159 }
gsfan 12:057089026a20 160 } else {
gsfan 12:057089026a20 161 httpdError(cid, 404);
gsfan 12:057089026a20 162 }
gsfan 12:057089026a20 163
gsfan 12:057089026a20 164 if (_httpd[cid].keepalive) {
gsfan 12:057089026a20 165 DBG("keepalive %d", _httpd[cid].keepalive);
gsfan 12:057089026a20 166 _httpd[cid].keepalive --;
gsfan 12:057089026a20 167 } else {
gsfan 12:057089026a20 168 close(cid);
gsfan 12:057089026a20 169 }
gsfan 12:057089026a20 170 _httpd[cid].mode = HTTPDMODE_REQUEST;
gsfan 12:057089026a20 171 #ifdef CFG_ENABLE_WEBSOCKET
gsfan 12:057089026a20 172 } else
gsfan 15:086d1a33a197 173 if (_httpd[cid].mode == HTTPDMODE_WEBSOCKET_BEGIN) {
gsfan 15:086d1a33a197 174 wsAccept(cid);
gsfan 15:086d1a33a197 175 _httpd[cid].mode = HTTPDMODE_WEBSOCKET;
gsfan 15:086d1a33a197 176 } else
gsfan 12:057089026a20 177 if (_httpd[cid].mode == HTTPDMODE_WEBSOCKET_ENTER) {
gsfan 12:057089026a20 178 wsParseRequest(cid);
gsfan 12:057089026a20 179 _httpd[cid].mode = HTTPDMODE_WEBSOCKET;
gsfan 12:057089026a20 180 #endif
gsfan 12:057089026a20 181 }
gsfan 12:057089026a20 182
gsfan 15:086d1a33a197 183 } // PROTO_HTTPD
gsfan 15:086d1a33a197 184 } // for
gsfan 12:057089026a20 185 }
gsfan 12:057089026a20 186
gsfan 12:057089026a20 187 int GSwifi::httpdParseRequest (int cid) {
gsfan 12:057089026a20 188 int i, j, len;
gsfan 12:057089026a20 189 char buf[CFG_CMD_SIZE];
gsfan 12:057089026a20 190
gsfan 16:105b56570533 191 if (_httpd[cid].buf == NULL) return 0;
gsfan 12:057089026a20 192 for (len = 0; len < sizeof(buf); len++) {
gsfan 12:057089026a20 193 if (_httpd[cid].buf->dequeue(&buf[len]) == false) break;
gsfan 12:057089026a20 194 }
gsfan 12:057089026a20 195 buf[len] = 0;
gsfan 12:057089026a20 196
gsfan 12:057089026a20 197 if (strnicmp(buf, "GET ", 4) == 0) {
gsfan 12:057089026a20 198 _httpd[cid].req = REQ_HTTPGET;
gsfan 12:057089026a20 199 j = 4;
gsfan 12:057089026a20 200 } else
gsfan 12:057089026a20 201 if (strnicmp(buf, "POST ", 5) == 0) {
gsfan 12:057089026a20 202 _httpd[cid].req = REQ_HTTPPOST;
gsfan 12:057089026a20 203 j = 5;
gsfan 12:057089026a20 204 } else {
gsfan 12:057089026a20 205 return -1;
gsfan 12:057089026a20 206 }
gsfan 12:057089026a20 207
gsfan 12:057089026a20 208 if (_httpd[cid].uri == NULL)
gsfan 12:057089026a20 209 _httpd[cid].uri = (char*)malloc(CFG_CMD_SIZE);
gsfan 12:057089026a20 210
gsfan 12:057089026a20 211 for (i = 0; i < len - j; i ++) {
gsfan 12:057089026a20 212 _httpd[cid].uri[i] = buf[i + j];
gsfan 12:057089026a20 213 if (buf[i + j] == ' ' || i >= CFG_CMD_SIZE - 1) {
gsfan 12:057089026a20 214 _httpd[cid].uri[i] = 0;
gsfan 12:057089026a20 215 INFO("URI %d '%s'", _httpd[cid].req, _httpd[cid].uri);
gsfan 12:057089026a20 216 _httpd[cid].mode = HTTPDMODE_HEADER;
gsfan 12:057089026a20 217 _httpd[cid].buf->flush();
gsfan 12:057089026a20 218 _httpd[cid].length = 0;
gsfan 12:057089026a20 219 _httpd[cid].n = 0;
gsfan 12:057089026a20 220 _httpd[cid].filename = NULL;
gsfan 12:057089026a20 221 _httpd[cid].querystring = NULL;
gsfan 12:057089026a20 222 #ifdef CFG_ENABLE_WEBSOCKET
gsfan 12:057089026a20 223 _httpd[cid].websocket = 0;
gsfan 12:057089026a20 224 #endif
gsfan 12:057089026a20 225 break;
gsfan 12:057089026a20 226 }
gsfan 12:057089026a20 227 }
gsfan 12:057089026a20 228
gsfan 12:057089026a20 229 i = httpdGetHandler(_httpd[cid].uri);
gsfan 12:057089026a20 230 if (i >= 0) {
gsfan 12:057089026a20 231 _httpd[cid].filename = &_httpd[cid].uri[strlen(_httpd_handler[i].uri)];
gsfan 12:057089026a20 232 for (i = 0; i < strlen(_httpd[cid].filename); i ++) {
gsfan 12:057089026a20 233 if (_httpd[cid].filename[i] == '?') {
gsfan 12:057089026a20 234 _httpd[cid].filename[i] = 0;
gsfan 12:057089026a20 235 _httpd[cid].querystring = _httpd[cid].filename + i + 1;
gsfan 12:057089026a20 236 break;
gsfan 12:057089026a20 237 }
gsfan 12:057089026a20 238 }
gsfan 12:057089026a20 239 INFO("FILE '%s' QUERY '%s'", _httpd[cid].filename, _httpd[cid].querystring);
gsfan 12:057089026a20 240 }
gsfan 12:057089026a20 241 return 0;
gsfan 12:057089026a20 242 }
gsfan 12:057089026a20 243
gsfan 12:057089026a20 244 #define HEADER_TABLE_NUM 5
gsfan 12:057089026a20 245 int GSwifi::httpdParseHeader (int cid) {
gsfan 12:057089026a20 246 int i;
gsfan 12:057089026a20 247 char buf[CFG_CMD_SIZE];
gsfan 12:057089026a20 248 static const struct HEADER_TABLE {
gsfan 12:057089026a20 249 const char header[24];
gsfan 12:057089026a20 250 void (GSwifi::*func)(int id, const char*);
gsfan 12:057089026a20 251 } header_table[HEADER_TABLE_NUM] = {
gsfan 12:057089026a20 252 {"Content-Length:", &GSwifi::reqContentLength},
gsfan 12:057089026a20 253 {"Connection:", &GSwifi::reqConnection},
gsfan 12:057089026a20 254 {"Upgrade: websocket", &GSwifi::reqUpgrade},
gsfan 12:057089026a20 255 {"Sec-WebSocket-Version:", &GSwifi::reqWebSocketVersion},
gsfan 12:057089026a20 256 {"Sec-WebSocket-Key:", &GSwifi::reqWebSocketKey},
gsfan 12:057089026a20 257 };
gsfan 16:105b56570533 258
gsfan 16:105b56570533 259 if (_httpd[cid].buf == NULL) return 0;
gsfan 12:057089026a20 260 for (i = 0; i < sizeof(buf); i++) {
gsfan 12:057089026a20 261 if (_httpd[cid].buf->dequeue(&buf[i]) == false) break;
gsfan 12:057089026a20 262 }
gsfan 12:057089026a20 263 buf[i] = 0;
gsfan 12:057089026a20 264
gsfan 12:057089026a20 265 for (i = 0; i < HEADER_TABLE_NUM; i ++) {
gsfan 12:057089026a20 266 if (strnicmp(buf, header_table[i].header, strlen(header_table[i].header)) == 0) {
gsfan 12:057089026a20 267 DBG("parse header %d '%s'\r\n", i, buf);
gsfan 12:057089026a20 268 if (header_table[i].func != NULL) {
gsfan 12:057089026a20 269 (this->*(header_table[i].func))(cid, buf);
gsfan 12:057089026a20 270 }
gsfan 12:057089026a20 271 return 0;
gsfan 12:057089026a20 272 }
gsfan 12:057089026a20 273 }
gsfan 12:057089026a20 274
gsfan 12:057089026a20 275 return -1;
gsfan 12:057089026a20 276 }
gsfan 12:057089026a20 277
gsfan 12:057089026a20 278 void GSwifi::reqContentLength (int cid, const char *buf) {
gsfan 12:057089026a20 279 _httpd[cid].length = atoi(&buf[16]);
gsfan 12:057089026a20 280 }
gsfan 12:057089026a20 281
gsfan 12:057089026a20 282 void GSwifi::reqConnection (int cid, const char *buf) {
gsfan 15:086d1a33a197 283 if (strnicmp(&buf[12], "Keep-Alive", 10) == 0) {
gsfan 15:086d1a33a197 284 if (_httpd[cid].keepalive == 0)
gsfan 15:086d1a33a197 285 _httpd[cid].keepalive = CFG_HTTPD_KEEPALIVE;
gsfan 12:057089026a20 286 } else {
gsfan 12:057089026a20 287 _httpd[cid].keepalive = 0;
gsfan 12:057089026a20 288 }
gsfan 12:057089026a20 289 }
gsfan 12:057089026a20 290
gsfan 12:057089026a20 291 #ifdef CFG_ENABLE_WEBSOCKET
gsfan 12:057089026a20 292 void GSwifi::reqUpgrade (int cid, const char *buf) {
gsfan 12:057089026a20 293 if (! _httpd[cid].websocket) _httpd[cid].websocket = 1;
gsfan 12:057089026a20 294 }
gsfan 12:057089026a20 295
gsfan 12:057089026a20 296 void GSwifi::reqWebSocketVersion (int cid, const char *buf) {
gsfan 12:057089026a20 297 _httpd[cid].websocket = atoi(&buf[23]);
gsfan 12:057089026a20 298 }
gsfan 12:057089026a20 299
gsfan 12:057089026a20 300 void GSwifi::reqWebSocketKey (int cid, const char *buf) {
gsfan 12:057089026a20 301 if (_httpd[cid].websocket_key == NULL) {
gsfan 12:057089026a20 302 _httpd[cid].websocket_key = (char*)malloc(30);
gsfan 12:057089026a20 303 }
gsfan 12:057089026a20 304 strncpy(_httpd[cid].websocket_key, &buf[19], 30);
gsfan 12:057089026a20 305 }
gsfan 12:057089026a20 306 #else
gsfan 12:057089026a20 307 void GSwifi::reqUpgrade (int cid, const char *buf) {
gsfan 12:057089026a20 308 }
gsfan 12:057089026a20 309 void GSwifi::reqWebSocketVersion (int cid, const char *buf) {
gsfan 12:057089026a20 310 }
gsfan 12:057089026a20 311 void GSwifi::reqWebSocketKey (int cid, const char *buf) {
gsfan 12:057089026a20 312 }
gsfan 12:057089026a20 313 #endif
gsfan 12:057089026a20 314
gsfan 12:057089026a20 315 #endif