AOS Team / HTTPClient

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Fork of HTTPClient by Donatien Garnier

HTTPClient.cpp@9:ff30cc189191, 2012-07-11 (annotated)

Committer:
donatien
Date:
Wed Jul 11 21:25:29 2012 +0000
Revision:
9:ff30cc189191
Parent:
8:45c8da29a1cf
Child:
10:e1351de84c16
Decreased stack size use

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:2ccb9960a044 1 /* HTTPClient.cpp */
donatien 0:2ccb9960a044 2 /*
donatien 0:2ccb9960a044 3 Copyright (C) 2012 ARM Limited.
donatien 0:2ccb9960a044 4
donatien 0:2ccb9960a044 5 Permission is hereby granted, free of charge, to any person obtaining a copy of
donatien 0:2ccb9960a044 6 this software and associated documentation files (the "Software"), to deal in
donatien 0:2ccb9960a044 7 the Software without restriction, including without limitation the rights to
donatien 0:2ccb9960a044 8 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
donatien 0:2ccb9960a044 9 of the Software, and to permit persons to whom the Software is furnished to do
donatien 0:2ccb9960a044 10 so, subject to the following conditions:
donatien 0:2ccb9960a044 11
donatien 0:2ccb9960a044 12 The above copyright notice and this permission notice shall be included in all
donatien 0:2ccb9960a044 13 copies or substantial portions of the Software.
donatien 0:2ccb9960a044 14
donatien 0:2ccb9960a044 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
donatien 0:2ccb9960a044 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
donatien 0:2ccb9960a044 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
donatien 0:2ccb9960a044 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
donatien 0:2ccb9960a044 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
donatien 0:2ccb9960a044 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
donatien 0:2ccb9960a044 21 SOFTWARE.
donatien 0:2ccb9960a044 22 */
donatien 0:2ccb9960a044 23
donatien 7:4e39864f7b15 24 //Debug is disabled by default
donatien 7:4e39864f7b15 25 #if 0
donatien 0:2ccb9960a044 26 #define __DEBUG__ 4 //Maximum verbosity
donatien 0:2ccb9960a044 27 #ifndef __MODULE__
donatien 0:2ccb9960a044 28 #define __MODULE__ "HTTPClient.cpp"
donatien 0:2ccb9960a044 29 #endif
donatien 7:4e39864f7b15 30 #else
donatien 7:4e39864f7b15 31 #define __DEBUG__ 0 //Disabled
donatien 7:4e39864f7b15 32 #endif
donatien 0:2ccb9960a044 33
donatien 0:2ccb9960a044 34 #include "core/fwk.h"
donatien 0:2ccb9960a044 35
donatien 0:2ccb9960a044 36 #include "HTTPClient.h"
donatien 0:2ccb9960a044 37
donatien 0:2ccb9960a044 38 #define HTTP_REQUEST_TIMEOUT 30000
donatien 0:2ccb9960a044 39 #define HTTP_PORT 80
donatien 0:2ccb9960a044 40
donatien 0:2ccb9960a044 41 #define CHUNK_SIZE 256
donatien 0:2ccb9960a044 42
donatien 0:2ccb9960a044 43 #include <cstring>
donatien 0:2ccb9960a044 44
donatien 0:2ccb9960a044 45 HTTPClient::HTTPClient() :
donatien 7:4e39864f7b15 46 m_sock(), m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0)
donatien 0:2ccb9960a044 47 {
donatien 0:2ccb9960a044 48
donatien 0:2ccb9960a044 49 }
donatien 0:2ccb9960a044 50
donatien 0:2ccb9960a044 51 HTTPClient::~HTTPClient()
donatien 0:2ccb9960a044 52 {
donatien 0:2ccb9960a044 53
donatien 0:2ccb9960a044 54 }
donatien 0:2ccb9960a044 55
donatien 0:2ccb9960a044 56 #if 0
donatien 0:2ccb9960a044 57 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
donatien 0:2ccb9960a044 58 {
donatien 0:2ccb9960a044 59 m_basicAuthUser = user;
donatien 0:2ccb9960a044 60 m_basicAuthPassword = password;
donatien 0:2ccb9960a044 61 }
donatien 0:2ccb9960a044 62 #endif
donatien 0:2ccb9960a044 63
donatien 0:2ccb9960a044 64 int HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 65 {
donatien 0:2ccb9960a044 66 return connect(url, HTTP_GET, NULL, pDataIn, timeout);
donatien 0:2ccb9960a044 67 }
donatien 0:2ccb9960a044 68
donatien 0:2ccb9960a044 69 int HTTPClient::get(const char* url, char* result, size_t maxResultLen, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 70 {
donatien 0:2ccb9960a044 71 HTTPText str(result, maxResultLen);
donatien 0:2ccb9960a044 72 return get(url, &str, timeout);
donatien 0:2ccb9960a044 73 }
donatien 0:2ccb9960a044 74
donatien 0:2ccb9960a044 75 int HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 76 {
donatien 0:2ccb9960a044 77 return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 0:2ccb9960a044 78 }
donatien 0:2ccb9960a044 79
donatien 0:2ccb9960a044 80 int HTTPClient::getHTTPResponseCode()
donatien 0:2ccb9960a044 81 {
donatien 0:2ccb9960a044 82 return m_httpResponseCode;
donatien 0:2ccb9960a044 83 }
donatien 0:2ccb9960a044 84
donatien 5:791fc3dcb6c4 85 #define CHECK_CONN_ERR(ret) \
donatien 5:791fc3dcb6c4 86 do{ \
donatien 7:4e39864f7b15 87 if(ret) { \
donatien 7:4e39864f7b15 88 m_sock.close(); \
donatien 5:791fc3dcb6c4 89 ERR("Connection error (%d)", ret); \
donatien 5:791fc3dcb6c4 90 return NET_CONN; \
donatien 5:791fc3dcb6c4 91 } \
donatien 5:791fc3dcb6c4 92 } while(0)
donatien 5:791fc3dcb6c4 93
donatien 5:791fc3dcb6c4 94 #define PRTCL_ERR() \
donatien 5:791fc3dcb6c4 95 do{ \
donatien 7:4e39864f7b15 96 m_sock.close(); \
donatien 5:791fc3dcb6c4 97 ERR("Protocol error"); \
donatien 5:791fc3dcb6c4 98 return NET_PROTOCOL; \
donatien 5:791fc3dcb6c4 99 } while(0)
donatien 0:2ccb9960a044 100
donatien 0:2ccb9960a044 101 int HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, uint32_t timeout) //Execute request
donatien 0:2ccb9960a044 102 {
donatien 0:2ccb9960a044 103 m_httpResponseCode = 0; //Invalidate code
donatien 0:2ccb9960a044 104 m_timeout = timeout;
donatien 0:2ccb9960a044 105
donatien 0:2ccb9960a044 106 char scheme[8];
donatien 0:2ccb9960a044 107 uint16_t port;
donatien 0:2ccb9960a044 108 char host[32];
donatien 0:2ccb9960a044 109 char path[64];
donatien 0:2ccb9960a044 110 //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?)
donatien 0:2ccb9960a044 111 int ret = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path));
donatien 7:4e39864f7b15 112 if(ret)
donatien 0:2ccb9960a044 113 {
donatien 0:2ccb9960a044 114 ERR("parseURL returned %d", ret);
donatien 0:2ccb9960a044 115 return ret;
donatien 0:2ccb9960a044 116 }
donatien 0:2ccb9960a044 117
donatien 0:2ccb9960a044 118 if(port == 0) //TODO do handle HTTPS->443
donatien 0:2ccb9960a044 119 {
donatien 0:2ccb9960a044 120 port = 80;
donatien 0:2ccb9960a044 121 }
donatien 0:2ccb9960a044 122
donatien 0:2ccb9960a044 123 DBG("Scheme: %s", scheme);
donatien 0:2ccb9960a044 124 DBG("Host: %s", host);
donatien 0:2ccb9960a044 125 DBG("Port: %d", port);
donatien 0:2ccb9960a044 126 DBG("Path: %s", path);
donatien 0:2ccb9960a044 127
donatien 7:4e39864f7b15 128 //Connect
donatien 7:4e39864f7b15 129 DBG("Connecting socket to server");
donatien 7:4e39864f7b15 130 ret = m_sock.connect(host, port);
donatien 0:2ccb9960a044 131 if (ret < 0)
donatien 0:2ccb9960a044 132 {
donatien 7:4e39864f7b15 133 m_sock.close();
donatien 0:2ccb9960a044 134 ERR("Could not connect");
donatien 0:2ccb9960a044 135 return NET_CONN;
donatien 0:2ccb9960a044 136 }
donatien 0:2ccb9960a044 137
donatien 0:2ccb9960a044 138 //Send request
donatien 0:2ccb9960a044 139 DBG("Sending request");
donatien 9:ff30cc189191 140 char buf[CHUNK_SIZE];
donatien 0:2ccb9960a044 141 const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":"";
donatien 9:ff30cc189191 142 snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request
donatien 9:ff30cc189191 143 ret = send(buf);
donatien 0:2ccb9960a044 144 if(ret)
donatien 0:2ccb9960a044 145 {
donatien 7:4e39864f7b15 146 m_sock.close();
donatien 0:2ccb9960a044 147 ERR("Could not write request");
donatien 0:2ccb9960a044 148 return NET_CONN;
donatien 0:2ccb9960a044 149 }
donatien 0:2ccb9960a044 150
donatien 0:2ccb9960a044 151 //Send all headers
donatien 0:2ccb9960a044 152
donatien 0:2ccb9960a044 153 //Send default headers
donatien 0:2ccb9960a044 154 DBG("Sending headers");
donatien 0:2ccb9960a044 155 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 156 {
donatien 0:2ccb9960a044 157 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 158 {
donatien 0:2ccb9960a044 159 ret = send("Transfer-Encoding: chunked\r\n");
donatien 5:791fc3dcb6c4 160 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 161 }
donatien 0:2ccb9960a044 162 else
donatien 0:2ccb9960a044 163 {
donatien 9:ff30cc189191 164 snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen());
donatien 9:ff30cc189191 165 ret = send(buf);
donatien 5:791fc3dcb6c4 166 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 167 }
donatien 0:2ccb9960a044 168 char type[48];
donatien 0:2ccb9960a044 169 if( pDataOut->getDataType(type, 48) == OK )
donatien 0:2ccb9960a044 170 {
donatien 9:ff30cc189191 171 snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type);
donatien 9:ff30cc189191 172 ret = send(buf);
donatien 5:791fc3dcb6c4 173 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 174 }
donatien 0:2ccb9960a044 175 }
donatien 9:ff30cc189191 176
donatien 0:2ccb9960a044 177 //Close headers
donatien 0:2ccb9960a044 178 DBG("Headers sent");
donatien 0:2ccb9960a044 179 ret = send("\r\n");
donatien 5:791fc3dcb6c4 180 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 181
donatien 4:c071b05ac026 182 size_t trfLen;
donatien 9:ff30cc189191 183
donatien 0:2ccb9960a044 184 //Send data (if POST)
donatien 0:2ccb9960a044 185 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 186 {
donatien 0:2ccb9960a044 187 DBG("Sending data");
donatien 0:2ccb9960a044 188 while(true)
donatien 0:2ccb9960a044 189 {
donatien 0:2ccb9960a044 190 size_t writtenLen = 0;
donatien 0:2ccb9960a044 191 pDataOut->read(buf, CHUNK_SIZE, &trfLen);
donatien 0:2ccb9960a044 192 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 193 {
donatien 0:2ccb9960a044 194 //Write chunk header
donatien 9:ff30cc189191 195 char chunkHeader[16];
donatien 9:ff30cc189191 196 snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding
donatien 9:ff30cc189191 197 ret = send(chunkHeader);
donatien 5:791fc3dcb6c4 198 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 199 }
donatien 0:2ccb9960a044 200 else if( trfLen == 0 )
donatien 0:2ccb9960a044 201 {
donatien 0:2ccb9960a044 202 break;
donatien 0:2ccb9960a044 203 }
donatien 0:2ccb9960a044 204 if( trfLen != 0 )
donatien 0:2ccb9960a044 205 {
donatien 0:2ccb9960a044 206 ret = send(buf, trfLen);
donatien 5:791fc3dcb6c4 207 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 208 }
donatien 0:2ccb9960a044 209
donatien 0:2ccb9960a044 210 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 211 {
donatien 0:2ccb9960a044 212 ret = send("\r\n"); //Chunk-terminating CRLF
donatien 5:791fc3dcb6c4 213 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 214 }
donatien 0:2ccb9960a044 215 else
donatien 0:2ccb9960a044 216 {
donatien 0:2ccb9960a044 217 writtenLen += trfLen;
donatien 0:2ccb9960a044 218 if( writtenLen >= pDataOut->getDataLen() )
donatien 0:2ccb9960a044 219 {
donatien 0:2ccb9960a044 220 break;
donatien 0:2ccb9960a044 221 }
donatien 0:2ccb9960a044 222 }
donatien 0:2ccb9960a044 223
donatien 0:2ccb9960a044 224 if( trfLen == 0 )
donatien 0:2ccb9960a044 225 {
donatien 0:2ccb9960a044 226 break;
donatien 0:2ccb9960a044 227 }
donatien 0:2ccb9960a044 228 }
donatien 0:2ccb9960a044 229
donatien 0:2ccb9960a044 230 }
donatien 9:ff30cc189191 231
donatien 0:2ccb9960a044 232 //Receive response
donatien 0:2ccb9960a044 233 DBG("Receiving response");
donatien 4:c071b05ac026 234 ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes
donatien 5:791fc3dcb6c4 235 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 236
donatien 0:2ccb9960a044 237 buf[trfLen] = '\0';
donatien 0:2ccb9960a044 238
donatien 0:2ccb9960a044 239 char* crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 240 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 241 {
donatien 5:791fc3dcb6c4 242 PRTCL_ERR();
donatien 0:2ccb9960a044 243 }
donatien 0:2ccb9960a044 244
donatien 4:c071b05ac026 245 int crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 246 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 247
donatien 0:2ccb9960a044 248 //Parse HTTP response
donatien 0:2ccb9960a044 249 if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
donatien 0:2ccb9960a044 250 {
donatien 0:2ccb9960a044 251 //Cannot match string, error
donatien 0:2ccb9960a044 252 ERR("Not a correct HTTP answer : %s\n", buf);
donatien 5:791fc3dcb6c4 253 PRTCL_ERR();
donatien 0:2ccb9960a044 254 }
donatien 0:2ccb9960a044 255
donatien 0:2ccb9960a044 256 if(m_httpResponseCode != 200)
donatien 0:2ccb9960a044 257 {
donatien 0:2ccb9960a044 258 //Cannot match string, error
donatien 0:2ccb9960a044 259 WARN("Response code %d", m_httpResponseCode);
donatien 5:791fc3dcb6c4 260 PRTCL_ERR();
donatien 0:2ccb9960a044 261 }
donatien 0:2ccb9960a044 262
donatien 0:2ccb9960a044 263 DBG("Reading headers");
donatien 0:2ccb9960a044 264
donatien 4:c071b05ac026 265 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 266 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 267
donatien 4:c071b05ac026 268 size_t recvContentLength = 0;
donatien 4:c071b05ac026 269 bool recvChunked = false;
donatien 0:2ccb9960a044 270 //Now get headers
donatien 0:2ccb9960a044 271 while( true )
donatien 0:2ccb9960a044 272 {
donatien 0:2ccb9960a044 273 crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 274 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 275 {
donatien 4:c071b05ac026 276 if( trfLen < CHUNK_SIZE - 1 )
donatien 0:2ccb9960a044 277 {
donatien 0:2ccb9960a044 278 size_t newTrfLen;
donatien 0:2ccb9960a044 279 ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 280 trfLen += newTrfLen;
donatien 0:2ccb9960a044 281 buf[trfLen] = '\0';
donatien 4:c071b05ac026 282 DBG("Read %d chars; In buf: [%s]", newTrfLen, buf);
donatien 5:791fc3dcb6c4 283 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 284 continue;
donatien 0:2ccb9960a044 285 }
donatien 0:2ccb9960a044 286 else
donatien 0:2ccb9960a044 287 {
donatien 5:791fc3dcb6c4 288 PRTCL_ERR();
donatien 0:2ccb9960a044 289 }
donatien 0:2ccb9960a044 290 }
donatien 0:2ccb9960a044 291
donatien 0:2ccb9960a044 292 crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 293
donatien 0:2ccb9960a044 294 if(crlfPos == 0) //End of headers
donatien 0:2ccb9960a044 295 {
donatien 0:2ccb9960a044 296 DBG("Headers read");
donatien 4:c071b05ac026 297 memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 298 trfLen -= 2;
donatien 0:2ccb9960a044 299 break;
donatien 0:2ccb9960a044 300 }
donatien 0:2ccb9960a044 301
donatien 0:2ccb9960a044 302 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 303
donatien 4:c071b05ac026 304 char key[32];
donatien 4:c071b05ac026 305 char value[32];
donatien 0:2ccb9960a044 306
donatien 4:c071b05ac026 307 key[31] = '\0';
donatien 4:c071b05ac026 308 value[31] = '\0';
donatien 4:c071b05ac026 309
donatien 4:c071b05ac026 310 int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value);
donatien 0:2ccb9960a044 311 if ( n == 2 )
donatien 0:2ccb9960a044 312 {
donatien 0:2ccb9960a044 313 DBG("Read header : %s: %s\n", key, value);
donatien 0:2ccb9960a044 314 if( !strcmp(key, "Content-Length") )
donatien 0:2ccb9960a044 315 {
donatien 0:2ccb9960a044 316 sscanf(value, "%d", &recvContentLength);
donatien 0:2ccb9960a044 317 pDataIn->setDataLen(recvContentLength);
donatien 0:2ccb9960a044 318 }
donatien 0:2ccb9960a044 319 else if( !strcmp(key, "Transfer-Encoding") )
donatien 0:2ccb9960a044 320 {
donatien 0:2ccb9960a044 321 if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") )
donatien 0:2ccb9960a044 322 {
donatien 0:2ccb9960a044 323 recvChunked = true;
donatien 0:2ccb9960a044 324 pDataIn->setIsChunked(true);
donatien 0:2ccb9960a044 325 }
donatien 0:2ccb9960a044 326 }
donatien 0:2ccb9960a044 327 else if( !strcmp(key, "Content-Type") )
donatien 0:2ccb9960a044 328 {
donatien 0:2ccb9960a044 329 pDataIn->setDataType(value);
donatien 0:2ccb9960a044 330 }
donatien 0:2ccb9960a044 331
donatien 4:c071b05ac026 332 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 333 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 334
donatien 0:2ccb9960a044 335 }
donatien 0:2ccb9960a044 336 else
donatien 0:2ccb9960a044 337 {
donatien 0:2ccb9960a044 338 ERR("Could not parse header");
donatien 5:791fc3dcb6c4 339 PRTCL_ERR();
donatien 0:2ccb9960a044 340 }
donatien 0:2ccb9960a044 341
donatien 0:2ccb9960a044 342 }
donatien 0:2ccb9960a044 343
donatien 0:2ccb9960a044 344 //Receive data
donatien 0:2ccb9960a044 345 DBG("Receiving data");
donatien 0:2ccb9960a044 346 while(true)
donatien 0:2ccb9960a044 347 {
donatien 0:2ccb9960a044 348 size_t readLen = 0;
donatien 0:2ccb9960a044 349
donatien 0:2ccb9960a044 350 if( recvChunked )
donatien 0:2ccb9960a044 351 {
donatien 0:2ccb9960a044 352 //Read chunk header
donatien 0:2ccb9960a044 353 crlfPos=0;
donatien 0:2ccb9960a044 354 for(crlfPos++; crlfPos < trfLen - 2; crlfPos++)
donatien 0:2ccb9960a044 355 {
donatien 0:2ccb9960a044 356 if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' )
donatien 0:2ccb9960a044 357 {
donatien 0:2ccb9960a044 358 break;
donatien 0:2ccb9960a044 359 }
donatien 0:2ccb9960a044 360 }
donatien 0:2ccb9960a044 361 if(crlfPos >= trfLen - 2) //Try to read more
donatien 0:2ccb9960a044 362 {
donatien 0:2ccb9960a044 363 if( trfLen < CHUNK_SIZE )
donatien 0:2ccb9960a044 364 {
donatien 0:2ccb9960a044 365 size_t newTrfLen;
donatien 0:2ccb9960a044 366 ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 367 trfLen += newTrfLen;
donatien 5:791fc3dcb6c4 368 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 369 continue;
donatien 0:2ccb9960a044 370 }
donatien 0:2ccb9960a044 371 else
donatien 0:2ccb9960a044 372 {
donatien 5:791fc3dcb6c4 373 PRTCL_ERR();
donatien 0:2ccb9960a044 374 }
donatien 0:2ccb9960a044 375 }
donatien 0:2ccb9960a044 376 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 377 int n = sscanf(buf, "%x", &readLen);
donatien 0:2ccb9960a044 378 if(n!=1)
donatien 0:2ccb9960a044 379 {
donatien 0:2ccb9960a044 380 ERR("Could not read chunk length");
donatien 5:791fc3dcb6c4 381 PRTCL_ERR();
donatien 0:2ccb9960a044 382 }
donatien 0:2ccb9960a044 383
donatien 4:c071b05ac026 384 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more
donatien 0:2ccb9960a044 385 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 386
donatien 0:2ccb9960a044 387 if( readLen == 0 )
donatien 0:2ccb9960a044 388 {
donatien 0:2ccb9960a044 389 //Last chunk
donatien 0:2ccb9960a044 390 break;
donatien 0:2ccb9960a044 391 }
donatien 0:2ccb9960a044 392 }
donatien 0:2ccb9960a044 393 else
donatien 0:2ccb9960a044 394 {
donatien 0:2ccb9960a044 395 readLen = recvContentLength;
donatien 0:2ccb9960a044 396 }
donatien 0:2ccb9960a044 397
donatien 0:2ccb9960a044 398 DBG("Retrieving %d bytes", readLen);
donatien 0:2ccb9960a044 399
donatien 0:2ccb9960a044 400 do
donatien 0:2ccb9960a044 401 {
donatien 0:2ccb9960a044 402 pDataIn->write(buf, MIN(trfLen, readLen));
donatien 0:2ccb9960a044 403 if( trfLen > readLen )
donatien 0:2ccb9960a044 404 {
donatien 0:2ccb9960a044 405 memmove(buf, &buf[readLen], trfLen - readLen);
donatien 0:2ccb9960a044 406 trfLen -= readLen;
donatien 0:2ccb9960a044 407 readLen = 0;
donatien 0:2ccb9960a044 408 }
donatien 0:2ccb9960a044 409 else
donatien 0:2ccb9960a044 410 {
donatien 0:2ccb9960a044 411 readLen -= trfLen;
donatien 0:2ccb9960a044 412 }
donatien 0:2ccb9960a044 413
donatien 0:2ccb9960a044 414 if(readLen)
donatien 0:2ccb9960a044 415 {
donatien 0:2ccb9960a044 416 ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen);
donatien 5:791fc3dcb6c4 417 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 418 }
donatien 0:2ccb9960a044 419 } while(readLen);
donatien 0:2ccb9960a044 420
donatien 0:2ccb9960a044 421 if( recvChunked )
donatien 0:2ccb9960a044 422 {
donatien 0:2ccb9960a044 423 if(trfLen < 2)
donatien 0:2ccb9960a044 424 {
donatien 0:2ccb9960a044 425 size_t newTrfLen;
donatien 0:2ccb9960a044 426 //Read missing chars to find end of chunk
donatien 0:2ccb9960a044 427 ret = recv(buf, 2 - trfLen, CHUNK_SIZE, &newTrfLen);
donatien 5:791fc3dcb6c4 428 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 429 trfLen += newTrfLen;
donatien 0:2ccb9960a044 430 }
donatien 0:2ccb9960a044 431 if( (buf[0] != '\r') || (buf[1] != '\n') )
donatien 0:2ccb9960a044 432 {
donatien 0:2ccb9960a044 433 ERR("Format error");
donatien 5:791fc3dcb6c4 434 PRTCL_ERR();
donatien 0:2ccb9960a044 435 }
donatien 0:2ccb9960a044 436 memmove(buf, &buf[2], trfLen - 2);
donatien 0:2ccb9960a044 437 trfLen -= 2;
donatien 0:2ccb9960a044 438 }
donatien 0:2ccb9960a044 439 else
donatien 0:2ccb9960a044 440 {
donatien 0:2ccb9960a044 441 break;
donatien 0:2ccb9960a044 442 }
donatien 0:2ccb9960a044 443
donatien 0:2ccb9960a044 444 }
donatien 0:2ccb9960a044 445
donatien 7:4e39864f7b15 446 m_sock.close();
donatien 0:2ccb9960a044 447 DBG("Completed HTTP transaction");
donatien 0:2ccb9960a044 448
donatien 0:2ccb9960a044 449 return OK;
donatien 0:2ccb9960a044 450 }
donatien 0:2ccb9960a044 451
donatien 0:2ccb9960a044 452 int HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure
donatien 0:2ccb9960a044 453 {
donatien 0:2ccb9960a044 454 DBG("Trying to read between %d and %d bytes", minLen, maxLen);
donatien 0:2ccb9960a044 455 size_t readLen = 0;
donatien 7:4e39864f7b15 456
donatien 7:4e39864f7b15 457 int ret;
donatien 7:4e39864f7b15 458 while(readLen < maxLen)
donatien 0:2ccb9960a044 459 {
donatien 7:4e39864f7b15 460 if(readLen < minLen)
donatien 0:2ccb9960a044 461 {
donatien 7:4e39864f7b15 462 ret = m_sock.receive(buf + readLen, minLen - readLen, m_timeout);
donatien 0:2ccb9960a044 463 }
donatien 7:4e39864f7b15 464 else
donatien 7:4e39864f7b15 465 {
donatien 7:4e39864f7b15 466 ret = m_sock.receive(buf + readLen, maxLen - readLen, 0);
donatien 7:4e39864f7b15 467 }
donatien 7:4e39864f7b15 468
donatien 0:2ccb9960a044 469 if( ret > 0)
donatien 0:2ccb9960a044 470 {
donatien 0:2ccb9960a044 471 readLen += ret;
donatien 0:2ccb9960a044 472 continue;
donatien 0:2ccb9960a044 473 }
donatien 0:2ccb9960a044 474 else if( ret == 0 )
donatien 0:2ccb9960a044 475 {
donatien 7:4e39864f7b15 476 break;
donatien 7:4e39864f7b15 477 }
donatien 7:4e39864f7b15 478 else
donatien 7:4e39864f7b15 479 {
donatien 7:4e39864f7b15 480 ERR("Connection error (recv returned %d)", ret);
donatien 7:4e39864f7b15 481 *pReadLen = readLen;
donatien 7:4e39864f7b15 482 return NET_CONN;
donatien 7:4e39864f7b15 483 }
donatien 7:4e39864f7b15 484 }
donatien 7:4e39864f7b15 485 DBG("Read %d bytes", readLen);
donatien 7:4e39864f7b15 486 *pReadLen = readLen;
donatien 7:4e39864f7b15 487 return OK;
donatien 7:4e39864f7b15 488 }
donatien 7:4e39864f7b15 489
donatien 7:4e39864f7b15 490 int HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure
donatien 7:4e39864f7b15 491 {
donatien 7:4e39864f7b15 492 if(len == 0)
donatien 7:4e39864f7b15 493 {
donatien 7:4e39864f7b15 494 len = strlen(buf);
donatien 7:4e39864f7b15 495 }
donatien 7:4e39864f7b15 496 DBG("Trying to write %d bytes", len);
donatien 7:4e39864f7b15 497 size_t writtenLen = 0;
donatien 7:4e39864f7b15 498
donatien 7:4e39864f7b15 499 int ret;
donatien 7:4e39864f7b15 500 do
donatien 7:4e39864f7b15 501 {
donatien 7:4e39864f7b15 502 ret = m_sock.send(buf + writtenLen, len - writtenLen, m_timeout);
donatien 7:4e39864f7b15 503 if(ret > 0)
donatien 7:4e39864f7b15 504 {
donatien 7:4e39864f7b15 505 writtenLen += ret;
donatien 7:4e39864f7b15 506 }
donatien 7:4e39864f7b15 507 else if( ret == 0 )
donatien 7:4e39864f7b15 508 {
donatien 0:2ccb9960a044 509 WARN("Connection was closed by server");
donatien 0:2ccb9960a044 510 return NET_CLOSED; //Connection was closed by server
donatien 0:2ccb9960a044 511 }
donatien 0:2ccb9960a044 512 else
donatien 0:2ccb9960a044 513 {
donatien 0:2ccb9960a044 514 ERR("Connection error (recv returned %d)", ret);
donatien 0:2ccb9960a044 515 return NET_CONN;
donatien 0:2ccb9960a044 516 }
donatien 7:4e39864f7b15 517 } while(writtenLen < len);
donatien 7:4e39864f7b15 518
donatien 0:2ccb9960a044 519 DBG("Written %d bytes", writtenLen);
donatien 0:2ccb9960a044 520 return OK;
donatien 0:2ccb9960a044 521 }
donatien 0:2ccb9960a044 522
donatien 0:2ccb9960a044 523 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 524 {
donatien 0:2ccb9960a044 525 char* schemePtr = (char*) url;
donatien 0:2ccb9960a044 526 char* hostPtr = (char*) strstr(url, "://");
donatien 0:2ccb9960a044 527 if(hostPtr == NULL)
donatien 0:2ccb9960a044 528 {
donatien 0:2ccb9960a044 529 WARN("Could not find host");
donatien 0:2ccb9960a044 530 return NET_INVALID; //URL is invalid
donatien 0:2ccb9960a044 531 }
donatien 0:2ccb9960a044 532
donatien 0:2ccb9960a044 533 if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 534 {
donatien 0:2ccb9960a044 535 WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1);
donatien 0:2ccb9960a044 536 return NET_TOOSMALL;
donatien 0:2ccb9960a044 537 }
donatien 0:2ccb9960a044 538 memcpy(scheme, schemePtr, hostPtr - schemePtr);
donatien 0:2ccb9960a044 539 scheme[hostPtr - schemePtr] = '\0';
donatien 0:2ccb9960a044 540
donatien 0:2ccb9960a044 541 hostPtr+=3;
donatien 0:2ccb9960a044 542
donatien 0:2ccb9960a044 543 size_t hostLen = 0;
donatien 0:2ccb9960a044 544
donatien 0:2ccb9960a044 545 char* portPtr = strchr(hostPtr, ':');
donatien 0:2ccb9960a044 546 if( portPtr != NULL )
donatien 0:2ccb9960a044 547 {
donatien 0:2ccb9960a044 548 hostLen = portPtr - hostPtr;
donatien 0:2ccb9960a044 549 portPtr++;
donatien 8:45c8da29a1cf 550 if( sscanf(portPtr, "%hu", port) != 1)
donatien 0:2ccb9960a044 551 {
donatien 0:2ccb9960a044 552 WARN("Could not find port");
donatien 0:2ccb9960a044 553 return NET_INVALID;
donatien 0:2ccb9960a044 554 }
donatien 0:2ccb9960a044 555 }
donatien 0:2ccb9960a044 556 else
donatien 0:2ccb9960a044 557 {
donatien 0:2ccb9960a044 558 *port=0;
donatien 0:2ccb9960a044 559 }
donatien 0:2ccb9960a044 560 char* pathPtr = strchr(hostPtr, '/');
donatien 0:2ccb9960a044 561 if( hostLen == 0 )
donatien 0:2ccb9960a044 562 {
donatien 0:2ccb9960a044 563 hostLen = pathPtr - hostPtr;
donatien 0:2ccb9960a044 564 }
donatien 0:2ccb9960a044 565
donatien 0:2ccb9960a044 566 if( maxHostLen < hostLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 567 {
donatien 0:2ccb9960a044 568 WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1);
donatien 0:2ccb9960a044 569 return NET_TOOSMALL;
donatien 0:2ccb9960a044 570 }
donatien 0:2ccb9960a044 571 memcpy(host, hostPtr, hostLen);
donatien 0:2ccb9960a044 572 host[hostLen] = '\0';
donatien 0:2ccb9960a044 573
donatien 0:2ccb9960a044 574 size_t pathLen;
donatien 0:2ccb9960a044 575 char* fragmentPtr = strchr(hostPtr, '#');
donatien 0:2ccb9960a044 576 if(fragmentPtr != NULL)
donatien 0:2ccb9960a044 577 {
donatien 0:2ccb9960a044 578 pathLen = fragmentPtr - pathPtr;
donatien 0:2ccb9960a044 579 }
donatien 0:2ccb9960a044 580 else
donatien 0:2ccb9960a044 581 {
donatien 0:2ccb9960a044 582 pathLen = strlen(pathPtr);
donatien 0:2ccb9960a044 583 }
donatien 0:2ccb9960a044 584
donatien 0:2ccb9960a044 585 if( maxPathLen < pathLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 586 {
donatien 0:2ccb9960a044 587 WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1);
donatien 0:2ccb9960a044 588 return NET_TOOSMALL;
donatien 0:2ccb9960a044 589 }
donatien 0:2ccb9960a044 590 memcpy(path, pathPtr, pathLen);
donatien 0:2ccb9960a044 591 path[pathLen] = '\0';
donatien 0:2ccb9960a044 592
donatien 0:2ccb9960a044 593 return OK;
donatien 0:2ccb9960a044 594 }