Fang Bao / HTTPClient

HTTPClient

Fork of HTTPClient by Donatien Garnier

HTTPClient.cpp@10:e1351de84c16, 2012-07-18 (annotated)

Committer:
donatien
Date:
Wed Jul 18 15:40:04 2012 +0000
Revision:
10:e1351de84c16
Parent:
9:ff30cc189191
Child:
11:390362de8c3f
Corrected licence headers

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:2ccb9960a044 1 /* HTTPClient.cpp */
donatien 10:e1351de84c16 2 /* Copyright (C) 2012 mbed.org, MIT License
donatien 10:e1351de84c16 3 *
donatien 10:e1351de84c16 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
donatien 10:e1351de84c16 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
donatien 10:e1351de84c16 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
donatien 10:e1351de84c16 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
donatien 10:e1351de84c16 8 * furnished to do so, subject to the following conditions:
donatien 10:e1351de84c16 9 *
donatien 10:e1351de84c16 10 * The above copyright notice and this permission notice shall be included in all copies or
donatien 10:e1351de84c16 11 * substantial portions of the Software.
donatien 10:e1351de84c16 12 *
donatien 10:e1351de84c16 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
donatien 10:e1351de84c16 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
donatien 10:e1351de84c16 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
donatien 10:e1351de84c16 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
donatien 10:e1351de84c16 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
donatien 10:e1351de84c16 18 */
donatien 0:2ccb9960a044 19
donatien 7:4e39864f7b15 20 //Debug is disabled by default
donatien 7:4e39864f7b15 21 #if 0
donatien 0:2ccb9960a044 22 #define __DEBUG__ 4 //Maximum verbosity
donatien 0:2ccb9960a044 23 #ifndef __MODULE__
donatien 0:2ccb9960a044 24 #define __MODULE__ "HTTPClient.cpp"
donatien 0:2ccb9960a044 25 #endif
donatien 7:4e39864f7b15 26 #else
donatien 7:4e39864f7b15 27 #define __DEBUG__ 0 //Disabled
donatien 7:4e39864f7b15 28 #endif
donatien 0:2ccb9960a044 29
donatien 0:2ccb9960a044 30 #include "core/fwk.h"
donatien 0:2ccb9960a044 31
donatien 0:2ccb9960a044 32 #include "HTTPClient.h"
donatien 0:2ccb9960a044 33
donatien 0:2ccb9960a044 34 #define HTTP_REQUEST_TIMEOUT 30000
donatien 0:2ccb9960a044 35 #define HTTP_PORT 80
donatien 0:2ccb9960a044 36
donatien 0:2ccb9960a044 37 #define CHUNK_SIZE 256
donatien 0:2ccb9960a044 38
donatien 0:2ccb9960a044 39 #include <cstring>
donatien 0:2ccb9960a044 40
donatien 0:2ccb9960a044 41 HTTPClient::HTTPClient() :
donatien 7:4e39864f7b15 42 m_sock(), m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0)
donatien 0:2ccb9960a044 43 {
donatien 0:2ccb9960a044 44
donatien 0:2ccb9960a044 45 }
donatien 0:2ccb9960a044 46
donatien 0:2ccb9960a044 47 HTTPClient::~HTTPClient()
donatien 0:2ccb9960a044 48 {
donatien 0:2ccb9960a044 49
donatien 0:2ccb9960a044 50 }
donatien 0:2ccb9960a044 51
donatien 0:2ccb9960a044 52 #if 0
donatien 0:2ccb9960a044 53 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
donatien 0:2ccb9960a044 54 {
donatien 0:2ccb9960a044 55 m_basicAuthUser = user;
donatien 0:2ccb9960a044 56 m_basicAuthPassword = password;
donatien 0:2ccb9960a044 57 }
donatien 0:2ccb9960a044 58 #endif
donatien 0:2ccb9960a044 59
donatien 0:2ccb9960a044 60 int HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 61 {
donatien 0:2ccb9960a044 62 return connect(url, HTTP_GET, NULL, pDataIn, timeout);
donatien 0:2ccb9960a044 63 }
donatien 0:2ccb9960a044 64
donatien 0:2ccb9960a044 65 int HTTPClient::get(const char* url, char* result, size_t maxResultLen, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 66 {
donatien 0:2ccb9960a044 67 HTTPText str(result, maxResultLen);
donatien 0:2ccb9960a044 68 return get(url, &str, timeout);
donatien 0:2ccb9960a044 69 }
donatien 0:2ccb9960a044 70
donatien 0:2ccb9960a044 71 int HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 72 {
donatien 0:2ccb9960a044 73 return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 0:2ccb9960a044 74 }
donatien 0:2ccb9960a044 75
donatien 0:2ccb9960a044 76 int HTTPClient::getHTTPResponseCode()
donatien 0:2ccb9960a044 77 {
donatien 0:2ccb9960a044 78 return m_httpResponseCode;
donatien 0:2ccb9960a044 79 }
donatien 0:2ccb9960a044 80
donatien 5:791fc3dcb6c4 81 #define CHECK_CONN_ERR(ret) \
donatien 5:791fc3dcb6c4 82 do{ \
donatien 7:4e39864f7b15 83 if(ret) { \
donatien 7:4e39864f7b15 84 m_sock.close(); \
donatien 5:791fc3dcb6c4 85 ERR("Connection error (%d)", ret); \
donatien 5:791fc3dcb6c4 86 return NET_CONN; \
donatien 5:791fc3dcb6c4 87 } \
donatien 5:791fc3dcb6c4 88 } while(0)
donatien 5:791fc3dcb6c4 89
donatien 5:791fc3dcb6c4 90 #define PRTCL_ERR() \
donatien 5:791fc3dcb6c4 91 do{ \
donatien 7:4e39864f7b15 92 m_sock.close(); \
donatien 5:791fc3dcb6c4 93 ERR("Protocol error"); \
donatien 5:791fc3dcb6c4 94 return NET_PROTOCOL; \
donatien 5:791fc3dcb6c4 95 } while(0)
donatien 0:2ccb9960a044 96
donatien 0:2ccb9960a044 97 int HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, uint32_t timeout) //Execute request
donatien 0:2ccb9960a044 98 {
donatien 0:2ccb9960a044 99 m_httpResponseCode = 0; //Invalidate code
donatien 0:2ccb9960a044 100 m_timeout = timeout;
donatien 0:2ccb9960a044 101
donatien 0:2ccb9960a044 102 char scheme[8];
donatien 0:2ccb9960a044 103 uint16_t port;
donatien 0:2ccb9960a044 104 char host[32];
donatien 0:2ccb9960a044 105 char path[64];
donatien 0:2ccb9960a044 106 //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?)
donatien 0:2ccb9960a044 107 int ret = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path));
donatien 7:4e39864f7b15 108 if(ret)
donatien 0:2ccb9960a044 109 {
donatien 0:2ccb9960a044 110 ERR("parseURL returned %d", ret);
donatien 0:2ccb9960a044 111 return ret;
donatien 0:2ccb9960a044 112 }
donatien 0:2ccb9960a044 113
donatien 0:2ccb9960a044 114 if(port == 0) //TODO do handle HTTPS->443
donatien 0:2ccb9960a044 115 {
donatien 0:2ccb9960a044 116 port = 80;
donatien 0:2ccb9960a044 117 }
donatien 0:2ccb9960a044 118
donatien 0:2ccb9960a044 119 DBG("Scheme: %s", scheme);
donatien 0:2ccb9960a044 120 DBG("Host: %s", host);
donatien 0:2ccb9960a044 121 DBG("Port: %d", port);
donatien 0:2ccb9960a044 122 DBG("Path: %s", path);
donatien 0:2ccb9960a044 123
donatien 7:4e39864f7b15 124 //Connect
donatien 7:4e39864f7b15 125 DBG("Connecting socket to server");
donatien 7:4e39864f7b15 126 ret = m_sock.connect(host, port);
donatien 0:2ccb9960a044 127 if (ret < 0)
donatien 0:2ccb9960a044 128 {
donatien 7:4e39864f7b15 129 m_sock.close();
donatien 0:2ccb9960a044 130 ERR("Could not connect");
donatien 0:2ccb9960a044 131 return NET_CONN;
donatien 0:2ccb9960a044 132 }
donatien 0:2ccb9960a044 133
donatien 0:2ccb9960a044 134 //Send request
donatien 0:2ccb9960a044 135 DBG("Sending request");
donatien 9:ff30cc189191 136 char buf[CHUNK_SIZE];
donatien 0:2ccb9960a044 137 const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":"";
donatien 9:ff30cc189191 138 snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request
donatien 9:ff30cc189191 139 ret = send(buf);
donatien 0:2ccb9960a044 140 if(ret)
donatien 0:2ccb9960a044 141 {
donatien 7:4e39864f7b15 142 m_sock.close();
donatien 0:2ccb9960a044 143 ERR("Could not write request");
donatien 0:2ccb9960a044 144 return NET_CONN;
donatien 0:2ccb9960a044 145 }
donatien 0:2ccb9960a044 146
donatien 0:2ccb9960a044 147 //Send all headers
donatien 0:2ccb9960a044 148
donatien 0:2ccb9960a044 149 //Send default headers
donatien 0:2ccb9960a044 150 DBG("Sending headers");
donatien 0:2ccb9960a044 151 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 152 {
donatien 0:2ccb9960a044 153 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 154 {
donatien 0:2ccb9960a044 155 ret = send("Transfer-Encoding: chunked\r\n");
donatien 5:791fc3dcb6c4 156 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 157 }
donatien 0:2ccb9960a044 158 else
donatien 0:2ccb9960a044 159 {
donatien 9:ff30cc189191 160 snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen());
donatien 9:ff30cc189191 161 ret = send(buf);
donatien 5:791fc3dcb6c4 162 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 163 }
donatien 0:2ccb9960a044 164 char type[48];
donatien 0:2ccb9960a044 165 if( pDataOut->getDataType(type, 48) == OK )
donatien 0:2ccb9960a044 166 {
donatien 9:ff30cc189191 167 snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type);
donatien 9:ff30cc189191 168 ret = send(buf);
donatien 5:791fc3dcb6c4 169 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 170 }
donatien 0:2ccb9960a044 171 }
donatien 9:ff30cc189191 172
donatien 0:2ccb9960a044 173 //Close headers
donatien 0:2ccb9960a044 174 DBG("Headers sent");
donatien 0:2ccb9960a044 175 ret = send("\r\n");
donatien 5:791fc3dcb6c4 176 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 177
donatien 4:c071b05ac026 178 size_t trfLen;
donatien 9:ff30cc189191 179
donatien 0:2ccb9960a044 180 //Send data (if POST)
donatien 0:2ccb9960a044 181 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 182 {
donatien 0:2ccb9960a044 183 DBG("Sending data");
donatien 0:2ccb9960a044 184 while(true)
donatien 0:2ccb9960a044 185 {
donatien 0:2ccb9960a044 186 size_t writtenLen = 0;
donatien 0:2ccb9960a044 187 pDataOut->read(buf, CHUNK_SIZE, &trfLen);
donatien 0:2ccb9960a044 188 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 189 {
donatien 0:2ccb9960a044 190 //Write chunk header
donatien 9:ff30cc189191 191 char chunkHeader[16];
donatien 9:ff30cc189191 192 snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding
donatien 9:ff30cc189191 193 ret = send(chunkHeader);
donatien 5:791fc3dcb6c4 194 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 195 }
donatien 0:2ccb9960a044 196 else if( trfLen == 0 )
donatien 0:2ccb9960a044 197 {
donatien 0:2ccb9960a044 198 break;
donatien 0:2ccb9960a044 199 }
donatien 0:2ccb9960a044 200 if( trfLen != 0 )
donatien 0:2ccb9960a044 201 {
donatien 0:2ccb9960a044 202 ret = send(buf, trfLen);
donatien 5:791fc3dcb6c4 203 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 204 }
donatien 0:2ccb9960a044 205
donatien 0:2ccb9960a044 206 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 207 {
donatien 0:2ccb9960a044 208 ret = send("\r\n"); //Chunk-terminating CRLF
donatien 5:791fc3dcb6c4 209 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 210 }
donatien 0:2ccb9960a044 211 else
donatien 0:2ccb9960a044 212 {
donatien 0:2ccb9960a044 213 writtenLen += trfLen;
donatien 0:2ccb9960a044 214 if( writtenLen >= pDataOut->getDataLen() )
donatien 0:2ccb9960a044 215 {
donatien 0:2ccb9960a044 216 break;
donatien 0:2ccb9960a044 217 }
donatien 0:2ccb9960a044 218 }
donatien 0:2ccb9960a044 219
donatien 0:2ccb9960a044 220 if( trfLen == 0 )
donatien 0:2ccb9960a044 221 {
donatien 0:2ccb9960a044 222 break;
donatien 0:2ccb9960a044 223 }
donatien 0:2ccb9960a044 224 }
donatien 0:2ccb9960a044 225
donatien 0:2ccb9960a044 226 }
donatien 9:ff30cc189191 227
donatien 0:2ccb9960a044 228 //Receive response
donatien 0:2ccb9960a044 229 DBG("Receiving response");
donatien 4:c071b05ac026 230 ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes
donatien 5:791fc3dcb6c4 231 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 232
donatien 0:2ccb9960a044 233 buf[trfLen] = '\0';
donatien 0:2ccb9960a044 234
donatien 0:2ccb9960a044 235 char* crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 236 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 237 {
donatien 5:791fc3dcb6c4 238 PRTCL_ERR();
donatien 0:2ccb9960a044 239 }
donatien 0:2ccb9960a044 240
donatien 4:c071b05ac026 241 int crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 242 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 243
donatien 0:2ccb9960a044 244 //Parse HTTP response
donatien 0:2ccb9960a044 245 if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
donatien 0:2ccb9960a044 246 {
donatien 0:2ccb9960a044 247 //Cannot match string, error
donatien 0:2ccb9960a044 248 ERR("Not a correct HTTP answer : %s\n", buf);
donatien 5:791fc3dcb6c4 249 PRTCL_ERR();
donatien 0:2ccb9960a044 250 }
donatien 0:2ccb9960a044 251
donatien 0:2ccb9960a044 252 if(m_httpResponseCode != 200)
donatien 0:2ccb9960a044 253 {
donatien 0:2ccb9960a044 254 //Cannot match string, error
donatien 0:2ccb9960a044 255 WARN("Response code %d", m_httpResponseCode);
donatien 5:791fc3dcb6c4 256 PRTCL_ERR();
donatien 0:2ccb9960a044 257 }
donatien 0:2ccb9960a044 258
donatien 0:2ccb9960a044 259 DBG("Reading headers");
donatien 0:2ccb9960a044 260
donatien 4:c071b05ac026 261 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 262 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 263
donatien 4:c071b05ac026 264 size_t recvContentLength = 0;
donatien 4:c071b05ac026 265 bool recvChunked = false;
donatien 0:2ccb9960a044 266 //Now get headers
donatien 0:2ccb9960a044 267 while( true )
donatien 0:2ccb9960a044 268 {
donatien 0:2ccb9960a044 269 crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 270 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 271 {
donatien 4:c071b05ac026 272 if( trfLen < CHUNK_SIZE - 1 )
donatien 0:2ccb9960a044 273 {
donatien 0:2ccb9960a044 274 size_t newTrfLen;
donatien 0:2ccb9960a044 275 ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 276 trfLen += newTrfLen;
donatien 0:2ccb9960a044 277 buf[trfLen] = '\0';
donatien 4:c071b05ac026 278 DBG("Read %d chars; In buf: [%s]", newTrfLen, buf);
donatien 5:791fc3dcb6c4 279 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 280 continue;
donatien 0:2ccb9960a044 281 }
donatien 0:2ccb9960a044 282 else
donatien 0:2ccb9960a044 283 {
donatien 5:791fc3dcb6c4 284 PRTCL_ERR();
donatien 0:2ccb9960a044 285 }
donatien 0:2ccb9960a044 286 }
donatien 0:2ccb9960a044 287
donatien 0:2ccb9960a044 288 crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 289
donatien 0:2ccb9960a044 290 if(crlfPos == 0) //End of headers
donatien 0:2ccb9960a044 291 {
donatien 0:2ccb9960a044 292 DBG("Headers read");
donatien 4:c071b05ac026 293 memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 294 trfLen -= 2;
donatien 0:2ccb9960a044 295 break;
donatien 0:2ccb9960a044 296 }
donatien 0:2ccb9960a044 297
donatien 0:2ccb9960a044 298 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 299
donatien 4:c071b05ac026 300 char key[32];
donatien 4:c071b05ac026 301 char value[32];
donatien 0:2ccb9960a044 302
donatien 4:c071b05ac026 303 key[31] = '\0';
donatien 4:c071b05ac026 304 value[31] = '\0';
donatien 4:c071b05ac026 305
donatien 4:c071b05ac026 306 int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value);
donatien 0:2ccb9960a044 307 if ( n == 2 )
donatien 0:2ccb9960a044 308 {
donatien 0:2ccb9960a044 309 DBG("Read header : %s: %s\n", key, value);
donatien 0:2ccb9960a044 310 if( !strcmp(key, "Content-Length") )
donatien 0:2ccb9960a044 311 {
donatien 0:2ccb9960a044 312 sscanf(value, "%d", &recvContentLength);
donatien 0:2ccb9960a044 313 pDataIn->setDataLen(recvContentLength);
donatien 0:2ccb9960a044 314 }
donatien 0:2ccb9960a044 315 else if( !strcmp(key, "Transfer-Encoding") )
donatien 0:2ccb9960a044 316 {
donatien 0:2ccb9960a044 317 if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") )
donatien 0:2ccb9960a044 318 {
donatien 0:2ccb9960a044 319 recvChunked = true;
donatien 0:2ccb9960a044 320 pDataIn->setIsChunked(true);
donatien 0:2ccb9960a044 321 }
donatien 0:2ccb9960a044 322 }
donatien 0:2ccb9960a044 323 else if( !strcmp(key, "Content-Type") )
donatien 0:2ccb9960a044 324 {
donatien 0:2ccb9960a044 325 pDataIn->setDataType(value);
donatien 0:2ccb9960a044 326 }
donatien 0:2ccb9960a044 327
donatien 4:c071b05ac026 328 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 329 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 330
donatien 0:2ccb9960a044 331 }
donatien 0:2ccb9960a044 332 else
donatien 0:2ccb9960a044 333 {
donatien 0:2ccb9960a044 334 ERR("Could not parse header");
donatien 5:791fc3dcb6c4 335 PRTCL_ERR();
donatien 0:2ccb9960a044 336 }
donatien 0:2ccb9960a044 337
donatien 0:2ccb9960a044 338 }
donatien 0:2ccb9960a044 339
donatien 0:2ccb9960a044 340 //Receive data
donatien 0:2ccb9960a044 341 DBG("Receiving data");
donatien 0:2ccb9960a044 342 while(true)
donatien 0:2ccb9960a044 343 {
donatien 0:2ccb9960a044 344 size_t readLen = 0;
donatien 0:2ccb9960a044 345
donatien 0:2ccb9960a044 346 if( recvChunked )
donatien 0:2ccb9960a044 347 {
donatien 0:2ccb9960a044 348 //Read chunk header
donatien 0:2ccb9960a044 349 crlfPos=0;
donatien 0:2ccb9960a044 350 for(crlfPos++; crlfPos < trfLen - 2; crlfPos++)
donatien 0:2ccb9960a044 351 {
donatien 0:2ccb9960a044 352 if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' )
donatien 0:2ccb9960a044 353 {
donatien 0:2ccb9960a044 354 break;
donatien 0:2ccb9960a044 355 }
donatien 0:2ccb9960a044 356 }
donatien 0:2ccb9960a044 357 if(crlfPos >= trfLen - 2) //Try to read more
donatien 0:2ccb9960a044 358 {
donatien 0:2ccb9960a044 359 if( trfLen < CHUNK_SIZE )
donatien 0:2ccb9960a044 360 {
donatien 0:2ccb9960a044 361 size_t newTrfLen;
donatien 0:2ccb9960a044 362 ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 363 trfLen += newTrfLen;
donatien 5:791fc3dcb6c4 364 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 365 continue;
donatien 0:2ccb9960a044 366 }
donatien 0:2ccb9960a044 367 else
donatien 0:2ccb9960a044 368 {
donatien 5:791fc3dcb6c4 369 PRTCL_ERR();
donatien 0:2ccb9960a044 370 }
donatien 0:2ccb9960a044 371 }
donatien 0:2ccb9960a044 372 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 373 int n = sscanf(buf, "%x", &readLen);
donatien 0:2ccb9960a044 374 if(n!=1)
donatien 0:2ccb9960a044 375 {
donatien 0:2ccb9960a044 376 ERR("Could not read chunk length");
donatien 5:791fc3dcb6c4 377 PRTCL_ERR();
donatien 0:2ccb9960a044 378 }
donatien 0:2ccb9960a044 379
donatien 4:c071b05ac026 380 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more
donatien 0:2ccb9960a044 381 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 382
donatien 0:2ccb9960a044 383 if( readLen == 0 )
donatien 0:2ccb9960a044 384 {
donatien 0:2ccb9960a044 385 //Last chunk
donatien 0:2ccb9960a044 386 break;
donatien 0:2ccb9960a044 387 }
donatien 0:2ccb9960a044 388 }
donatien 0:2ccb9960a044 389 else
donatien 0:2ccb9960a044 390 {
donatien 0:2ccb9960a044 391 readLen = recvContentLength;
donatien 0:2ccb9960a044 392 }
donatien 0:2ccb9960a044 393
donatien 0:2ccb9960a044 394 DBG("Retrieving %d bytes", readLen);
donatien 0:2ccb9960a044 395
donatien 0:2ccb9960a044 396 do
donatien 0:2ccb9960a044 397 {
donatien 0:2ccb9960a044 398 pDataIn->write(buf, MIN(trfLen, readLen));
donatien 0:2ccb9960a044 399 if( trfLen > readLen )
donatien 0:2ccb9960a044 400 {
donatien 0:2ccb9960a044 401 memmove(buf, &buf[readLen], trfLen - readLen);
donatien 0:2ccb9960a044 402 trfLen -= readLen;
donatien 0:2ccb9960a044 403 readLen = 0;
donatien 0:2ccb9960a044 404 }
donatien 0:2ccb9960a044 405 else
donatien 0:2ccb9960a044 406 {
donatien 0:2ccb9960a044 407 readLen -= trfLen;
donatien 0:2ccb9960a044 408 }
donatien 0:2ccb9960a044 409
donatien 0:2ccb9960a044 410 if(readLen)
donatien 0:2ccb9960a044 411 {
donatien 0:2ccb9960a044 412 ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen);
donatien 5:791fc3dcb6c4 413 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 414 }
donatien 0:2ccb9960a044 415 } while(readLen);
donatien 0:2ccb9960a044 416
donatien 0:2ccb9960a044 417 if( recvChunked )
donatien 0:2ccb9960a044 418 {
donatien 0:2ccb9960a044 419 if(trfLen < 2)
donatien 0:2ccb9960a044 420 {
donatien 0:2ccb9960a044 421 size_t newTrfLen;
donatien 0:2ccb9960a044 422 //Read missing chars to find end of chunk
donatien 0:2ccb9960a044 423 ret = recv(buf, 2 - trfLen, CHUNK_SIZE, &newTrfLen);
donatien 5:791fc3dcb6c4 424 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 425 trfLen += newTrfLen;
donatien 0:2ccb9960a044 426 }
donatien 0:2ccb9960a044 427 if( (buf[0] != '\r') || (buf[1] != '\n') )
donatien 0:2ccb9960a044 428 {
donatien 0:2ccb9960a044 429 ERR("Format error");
donatien 5:791fc3dcb6c4 430 PRTCL_ERR();
donatien 0:2ccb9960a044 431 }
donatien 0:2ccb9960a044 432 memmove(buf, &buf[2], trfLen - 2);
donatien 0:2ccb9960a044 433 trfLen -= 2;
donatien 0:2ccb9960a044 434 }
donatien 0:2ccb9960a044 435 else
donatien 0:2ccb9960a044 436 {
donatien 0:2ccb9960a044 437 break;
donatien 0:2ccb9960a044 438 }
donatien 0:2ccb9960a044 439
donatien 0:2ccb9960a044 440 }
donatien 0:2ccb9960a044 441
donatien 7:4e39864f7b15 442 m_sock.close();
donatien 0:2ccb9960a044 443 DBG("Completed HTTP transaction");
donatien 0:2ccb9960a044 444
donatien 0:2ccb9960a044 445 return OK;
donatien 0:2ccb9960a044 446 }
donatien 0:2ccb9960a044 447
donatien 0:2ccb9960a044 448 int HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure
donatien 0:2ccb9960a044 449 {
donatien 0:2ccb9960a044 450 DBG("Trying to read between %d and %d bytes", minLen, maxLen);
donatien 0:2ccb9960a044 451 size_t readLen = 0;
donatien 7:4e39864f7b15 452
donatien 7:4e39864f7b15 453 int ret;
donatien 7:4e39864f7b15 454 while(readLen < maxLen)
donatien 0:2ccb9960a044 455 {
donatien 7:4e39864f7b15 456 if(readLen < minLen)
donatien 0:2ccb9960a044 457 {
donatien 7:4e39864f7b15 458 ret = m_sock.receive(buf + readLen, minLen - readLen, m_timeout);
donatien 0:2ccb9960a044 459 }
donatien 7:4e39864f7b15 460 else
donatien 7:4e39864f7b15 461 {
donatien 7:4e39864f7b15 462 ret = m_sock.receive(buf + readLen, maxLen - readLen, 0);
donatien 7:4e39864f7b15 463 }
donatien 7:4e39864f7b15 464
donatien 0:2ccb9960a044 465 if( ret > 0)
donatien 0:2ccb9960a044 466 {
donatien 0:2ccb9960a044 467 readLen += ret;
donatien 0:2ccb9960a044 468 continue;
donatien 0:2ccb9960a044 469 }
donatien 0:2ccb9960a044 470 else if( ret == 0 )
donatien 0:2ccb9960a044 471 {
donatien 7:4e39864f7b15 472 break;
donatien 7:4e39864f7b15 473 }
donatien 7:4e39864f7b15 474 else
donatien 7:4e39864f7b15 475 {
donatien 7:4e39864f7b15 476 ERR("Connection error (recv returned %d)", ret);
donatien 7:4e39864f7b15 477 *pReadLen = readLen;
donatien 7:4e39864f7b15 478 return NET_CONN;
donatien 7:4e39864f7b15 479 }
donatien 7:4e39864f7b15 480 }
donatien 7:4e39864f7b15 481 DBG("Read %d bytes", readLen);
donatien 7:4e39864f7b15 482 *pReadLen = readLen;
donatien 7:4e39864f7b15 483 return OK;
donatien 7:4e39864f7b15 484 }
donatien 7:4e39864f7b15 485
donatien 7:4e39864f7b15 486 int HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure
donatien 7:4e39864f7b15 487 {
donatien 7:4e39864f7b15 488 if(len == 0)
donatien 7:4e39864f7b15 489 {
donatien 7:4e39864f7b15 490 len = strlen(buf);
donatien 7:4e39864f7b15 491 }
donatien 7:4e39864f7b15 492 DBG("Trying to write %d bytes", len);
donatien 7:4e39864f7b15 493 size_t writtenLen = 0;
donatien 7:4e39864f7b15 494
donatien 7:4e39864f7b15 495 int ret;
donatien 7:4e39864f7b15 496 do
donatien 7:4e39864f7b15 497 {
donatien 7:4e39864f7b15 498 ret = m_sock.send(buf + writtenLen, len - writtenLen, m_timeout);
donatien 7:4e39864f7b15 499 if(ret > 0)
donatien 7:4e39864f7b15 500 {
donatien 7:4e39864f7b15 501 writtenLen += ret;
donatien 7:4e39864f7b15 502 }
donatien 7:4e39864f7b15 503 else if( ret == 0 )
donatien 7:4e39864f7b15 504 {
donatien 0:2ccb9960a044 505 WARN("Connection was closed by server");
donatien 0:2ccb9960a044 506 return NET_CLOSED; //Connection was closed by server
donatien 0:2ccb9960a044 507 }
donatien 0:2ccb9960a044 508 else
donatien 0:2ccb9960a044 509 {
donatien 0:2ccb9960a044 510 ERR("Connection error (recv returned %d)", ret);
donatien 0:2ccb9960a044 511 return NET_CONN;
donatien 0:2ccb9960a044 512 }
donatien 7:4e39864f7b15 513 } while(writtenLen < len);
donatien 7:4e39864f7b15 514
donatien 0:2ccb9960a044 515 DBG("Written %d bytes", writtenLen);
donatien 0:2ccb9960a044 516 return OK;
donatien 0:2ccb9960a044 517 }
donatien 0:2ccb9960a044 518
donatien 0:2ccb9960a044 519 int HTTPClient::parseURL(const char* url, char* scheme, size_t maxSchemeLen, char* host, size_t maxHostLen, uint16_t* port, char* path, size_t maxPathLen) //Parse URL
donatien 0:2ccb9960a044 520 {
donatien 0:2ccb9960a044 521 char* schemePtr = (char*) url;
donatien 0:2ccb9960a044 522 char* hostPtr = (char*) strstr(url, "://");
donatien 0:2ccb9960a044 523 if(hostPtr == NULL)
donatien 0:2ccb9960a044 524 {
donatien 0:2ccb9960a044 525 WARN("Could not find host");
donatien 0:2ccb9960a044 526 return NET_INVALID; //URL is invalid
donatien 0:2ccb9960a044 527 }
donatien 0:2ccb9960a044 528
donatien 0:2ccb9960a044 529 if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 530 {
donatien 0:2ccb9960a044 531 WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1);
donatien 0:2ccb9960a044 532 return NET_TOOSMALL;
donatien 0:2ccb9960a044 533 }
donatien 0:2ccb9960a044 534 memcpy(scheme, schemePtr, hostPtr - schemePtr);
donatien 0:2ccb9960a044 535 scheme[hostPtr - schemePtr] = '\0';
donatien 0:2ccb9960a044 536
donatien 0:2ccb9960a044 537 hostPtr+=3;
donatien 0:2ccb9960a044 538
donatien 0:2ccb9960a044 539 size_t hostLen = 0;
donatien 0:2ccb9960a044 540
donatien 0:2ccb9960a044 541 char* portPtr = strchr(hostPtr, ':');
donatien 0:2ccb9960a044 542 if( portPtr != NULL )
donatien 0:2ccb9960a044 543 {
donatien 0:2ccb9960a044 544 hostLen = portPtr - hostPtr;
donatien 0:2ccb9960a044 545 portPtr++;
donatien 8:45c8da29a1cf 546 if( sscanf(portPtr, "%hu", port) != 1)
donatien 0:2ccb9960a044 547 {
donatien 0:2ccb9960a044 548 WARN("Could not find port");
donatien 0:2ccb9960a044 549 return NET_INVALID;
donatien 0:2ccb9960a044 550 }
donatien 0:2ccb9960a044 551 }
donatien 0:2ccb9960a044 552 else
donatien 0:2ccb9960a044 553 {
donatien 0:2ccb9960a044 554 *port=0;
donatien 0:2ccb9960a044 555 }
donatien 0:2ccb9960a044 556 char* pathPtr = strchr(hostPtr, '/');
donatien 0:2ccb9960a044 557 if( hostLen == 0 )
donatien 0:2ccb9960a044 558 {
donatien 0:2ccb9960a044 559 hostLen = pathPtr - hostPtr;
donatien 0:2ccb9960a044 560 }
donatien 0:2ccb9960a044 561
donatien 0:2ccb9960a044 562 if( maxHostLen < hostLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 563 {
donatien 0:2ccb9960a044 564 WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1);
donatien 0:2ccb9960a044 565 return NET_TOOSMALL;
donatien 0:2ccb9960a044 566 }
donatien 0:2ccb9960a044 567 memcpy(host, hostPtr, hostLen);
donatien 0:2ccb9960a044 568 host[hostLen] = '\0';
donatien 0:2ccb9960a044 569
donatien 0:2ccb9960a044 570 size_t pathLen;
donatien 0:2ccb9960a044 571 char* fragmentPtr = strchr(hostPtr, '#');
donatien 0:2ccb9960a044 572 if(fragmentPtr != NULL)
donatien 0:2ccb9960a044 573 {
donatien 0:2ccb9960a044 574 pathLen = fragmentPtr - pathPtr;
donatien 0:2ccb9960a044 575 }
donatien 0:2ccb9960a044 576 else
donatien 0:2ccb9960a044 577 {
donatien 0:2ccb9960a044 578 pathLen = strlen(pathPtr);
donatien 0:2ccb9960a044 579 }
donatien 0:2ccb9960a044 580
donatien 0:2ccb9960a044 581 if( maxPathLen < pathLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 582 {
donatien 0:2ccb9960a044 583 WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1);
donatien 0:2ccb9960a044 584 return NET_TOOSMALL;
donatien 0:2ccb9960a044 585 }
donatien 0:2ccb9960a044 586 memcpy(path, pathPtr, pathLen);
donatien 0:2ccb9960a044 587 path[pathLen] = '\0';
donatien 0:2ccb9960a044 588
donatien 0:2ccb9960a044 589 return OK;
donatien 0:2ccb9960a044 590 }