Donatien Garnier / HTTPClient

A HTTP Client for the mbed networking libraries

Dependents:   HTTPClient_Wifly_HelloWorld HTTPPoster HTTPClient_HelloWorld mpod_nhk_english ... more

Fork of HTTPClientLib by Donatien Garnier

HTTPClient.cpp@6:54f79436184f, 2012-06-29 (annotated)

Committer:
donatien
Date:
Fri Jun 29 10:24:38 2012 +0000
Revision:
6:54f79436184f
Parent:
5:791fc3dcb6c4
Child:
7:4e39864f7b15
Forked with right name

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 0:2ccb9960a044 24 #define __DEBUG__ 4 //Maximum verbosity
donatien 0:2ccb9960a044 25 #ifndef __MODULE__
donatien 0:2ccb9960a044 26 #define __MODULE__ "HTTPClient.cpp"
donatien 0:2ccb9960a044 27 #endif
donatien 0:2ccb9960a044 28
donatien 0:2ccb9960a044 29 #include "core/fwk.h"
donatien 0:2ccb9960a044 30
donatien 0:2ccb9960a044 31 #include "HTTPClient.h"
donatien 0:2ccb9960a044 32
donatien 0:2ccb9960a044 33 #define HTTP_REQUEST_TIMEOUT 30000
donatien 0:2ccb9960a044 34 #define HTTP_PORT 80
donatien 0:2ccb9960a044 35
donatien 0:2ccb9960a044 36 #define CHUNK_SIZE 256
donatien 0:2ccb9960a044 37
donatien 0:2ccb9960a044 38 #include <cstring>
donatien 0:2ccb9960a044 39
donatien 0:2ccb9960a044 40 HTTPClient::HTTPClient() :
donatien 0:2ccb9960a044 41 m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0)
donatien 0:2ccb9960a044 42 {
donatien 0:2ccb9960a044 43
donatien 0:2ccb9960a044 44 }
donatien 0:2ccb9960a044 45
donatien 0:2ccb9960a044 46 HTTPClient::~HTTPClient()
donatien 0:2ccb9960a044 47 {
donatien 0:2ccb9960a044 48
donatien 0:2ccb9960a044 49 }
donatien 0:2ccb9960a044 50
donatien 0:2ccb9960a044 51 #if 0
donatien 0:2ccb9960a044 52 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
donatien 0:2ccb9960a044 53 {
donatien 0:2ccb9960a044 54 m_basicAuthUser = user;
donatien 0:2ccb9960a044 55 m_basicAuthPassword = password;
donatien 0:2ccb9960a044 56 }
donatien 0:2ccb9960a044 57 #endif
donatien 0:2ccb9960a044 58
donatien 0:2ccb9960a044 59 int HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 60 {
donatien 0:2ccb9960a044 61 return connect(url, HTTP_GET, NULL, pDataIn, timeout);
donatien 0:2ccb9960a044 62 }
donatien 0:2ccb9960a044 63
donatien 0:2ccb9960a044 64 int HTTPClient::get(const char* url, char* result, size_t maxResultLen, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 65 {
donatien 0:2ccb9960a044 66 HTTPText str(result, maxResultLen);
donatien 0:2ccb9960a044 67 return get(url, &str, timeout);
donatien 0:2ccb9960a044 68 }
donatien 0:2ccb9960a044 69
donatien 0:2ccb9960a044 70 int HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 71 {
donatien 0:2ccb9960a044 72 return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 0:2ccb9960a044 73 }
donatien 0:2ccb9960a044 74
donatien 0:2ccb9960a044 75 int HTTPClient::getHTTPResponseCode()
donatien 0:2ccb9960a044 76 {
donatien 0:2ccb9960a044 77 return m_httpResponseCode;
donatien 0:2ccb9960a044 78 }
donatien 0:2ccb9960a044 79
donatien 5:791fc3dcb6c4 80 #define CHECK_CONN_ERR(ret) \
donatien 5:791fc3dcb6c4 81 do{ \
donatien 5:791fc3dcb6c4 82 if(ret != OK) { \
donatien 5:791fc3dcb6c4 83 ::close(m_sock); \
donatien 5:791fc3dcb6c4 84 ERR("Connection error (%d)", ret); \
donatien 5:791fc3dcb6c4 85 return NET_CONN; \
donatien 5:791fc3dcb6c4 86 } \
donatien 5:791fc3dcb6c4 87 } while(0)
donatien 5:791fc3dcb6c4 88
donatien 5:791fc3dcb6c4 89 #define PRTCL_ERR() \
donatien 5:791fc3dcb6c4 90 do{ \
donatien 5:791fc3dcb6c4 91 ::close(m_sock); \
donatien 5:791fc3dcb6c4 92 ERR("Protocol error"); \
donatien 5:791fc3dcb6c4 93 return NET_PROTOCOL; \
donatien 5:791fc3dcb6c4 94 } while(0)
donatien 0:2ccb9960a044 95
donatien 0:2ccb9960a044 96 int HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, uint32_t timeout) //Execute request
donatien 0:2ccb9960a044 97 {
donatien 0:2ccb9960a044 98 m_httpResponseCode = 0; //Invalidate code
donatien 0:2ccb9960a044 99 m_timeout = timeout;
donatien 0:2ccb9960a044 100
donatien 0:2ccb9960a044 101 char scheme[8];
donatien 0:2ccb9960a044 102 uint16_t port;
donatien 0:2ccb9960a044 103 char host[32];
donatien 0:2ccb9960a044 104 char path[64];
donatien 0:2ccb9960a044 105 //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?)
donatien 0:2ccb9960a044 106 int ret = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path));
donatien 0:2ccb9960a044 107 if(ret != OK)
donatien 0:2ccb9960a044 108 {
donatien 0:2ccb9960a044 109 ERR("parseURL returned %d", ret);
donatien 0:2ccb9960a044 110 return ret;
donatien 0:2ccb9960a044 111 }
donatien 0:2ccb9960a044 112
donatien 0:2ccb9960a044 113 if(port == 0) //TODO do handle HTTPS->443
donatien 0:2ccb9960a044 114 {
donatien 0:2ccb9960a044 115 port = 80;
donatien 0:2ccb9960a044 116 }
donatien 0:2ccb9960a044 117
donatien 0:2ccb9960a044 118 DBG("Scheme: %s", scheme);
donatien 0:2ccb9960a044 119 DBG("Host: %s", host);
donatien 0:2ccb9960a044 120 DBG("Port: %d", port);
donatien 0:2ccb9960a044 121 DBG("Path: %s", path);
donatien 0:2ccb9960a044 122
donatien 0:2ccb9960a044 123 //Now populate structure
donatien 0:2ccb9960a044 124 std::memset(&m_serverAddr, 0, sizeof(struct sockaddr_in));
donatien 0:2ccb9960a044 125
donatien 0:2ccb9960a044 126 //Resolve DNS if needed
donatien 0:2ccb9960a044 127
donatien 0:2ccb9960a044 128 DBG("Resolving DNS address or populate hard-coded IP address");
donatien 5:791fc3dcb6c4 129 struct hostent *server = ::gethostbyname(host);
donatien 0:2ccb9960a044 130 if(server == NULL)
donatien 0:2ccb9960a044 131 {
donatien 0:2ccb9960a044 132 return NET_NOTFOUND; //Fail
donatien 0:2ccb9960a044 133 }
donatien 0:2ccb9960a044 134 memcpy((char*)&m_serverAddr.sin_addr.s_addr, (char*)server->h_addr_list[0], server->h_length);
donatien 0:2ccb9960a044 135
donatien 0:2ccb9960a044 136 m_serverAddr.sin_family = AF_INET;
donatien 0:2ccb9960a044 137 m_serverAddr.sin_port = htons(port);
donatien 0:2ccb9960a044 138
donatien 0:2ccb9960a044 139 //Create socket
donatien 0:2ccb9960a044 140 DBG("Creating socket");
donatien 6:54f79436184f 141 m_sock = ::socket(AF_INET, SOCK_STREAM, 0); //TCP socket
donatien 0:2ccb9960a044 142 if (m_sock < 0)
donatien 0:2ccb9960a044 143 {
donatien 0:2ccb9960a044 144 ERR("Could not create socket");
donatien 0:2ccb9960a044 145 return NET_OOM;
donatien 0:2ccb9960a044 146 }
donatien 0:2ccb9960a044 147 DBG("Handle is %d", m_sock);
donatien 0:2ccb9960a044 148
donatien 0:2ccb9960a044 149 //Connect it
donatien 0:2ccb9960a044 150 DBG("Connecting socket to %s:%d", inet_ntoa(m_serverAddr.sin_addr), ntohs(m_serverAddr.sin_port));
donatien 5:791fc3dcb6c4 151 ret = ::connect(m_sock, (const struct sockaddr *)&m_serverAddr, sizeof(m_serverAddr));
donatien 0:2ccb9960a044 152 if (ret < 0)
donatien 0:2ccb9960a044 153 {
donatien 5:791fc3dcb6c4 154 ::close(m_sock);
donatien 0:2ccb9960a044 155 ERR("Could not connect");
donatien 0:2ccb9960a044 156 return NET_CONN;
donatien 0:2ccb9960a044 157 }
donatien 0:2ccb9960a044 158
donatien 0:2ccb9960a044 159 //Send request
donatien 0:2ccb9960a044 160 DBG("Sending request");
donatien 0:2ccb9960a044 161 char line[128];
donatien 0:2ccb9960a044 162 const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":"";
donatien 0:2ccb9960a044 163 snprintf(line, sizeof(line), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request
donatien 0:2ccb9960a044 164 ret = send(line);
donatien 0:2ccb9960a044 165 if(ret)
donatien 0:2ccb9960a044 166 {
donatien 5:791fc3dcb6c4 167 ::close(m_sock);
donatien 0:2ccb9960a044 168 ERR("Could not write request");
donatien 0:2ccb9960a044 169 return NET_CONN;
donatien 0:2ccb9960a044 170 }
donatien 0:2ccb9960a044 171
donatien 0:2ccb9960a044 172 //Send all headers
donatien 0:2ccb9960a044 173
donatien 0:2ccb9960a044 174 //Send default headers
donatien 0:2ccb9960a044 175 DBG("Sending headers");
donatien 0:2ccb9960a044 176 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 177 {
donatien 0:2ccb9960a044 178 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 179 {
donatien 0:2ccb9960a044 180 ret = send("Transfer-Encoding: chunked\r\n");
donatien 5:791fc3dcb6c4 181 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 182 }
donatien 0:2ccb9960a044 183 else
donatien 0:2ccb9960a044 184 {
donatien 0:2ccb9960a044 185 snprintf(line, sizeof(line), "Content-Length: %d\r\n", pDataOut->getDataLen());
donatien 0:2ccb9960a044 186 ret = send(line);
donatien 5:791fc3dcb6c4 187 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 188 }
donatien 0:2ccb9960a044 189 char type[48];
donatien 0:2ccb9960a044 190 if( pDataOut->getDataType(type, 48) == OK )
donatien 0:2ccb9960a044 191 {
donatien 0:2ccb9960a044 192 snprintf(line, sizeof(line), "Content-Type: %s\r\n", type);
donatien 0:2ccb9960a044 193 ret = send(line);
donatien 5:791fc3dcb6c4 194 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 195 }
donatien 0:2ccb9960a044 196 }
donatien 0:2ccb9960a044 197
donatien 0:2ccb9960a044 198 //Close headers
donatien 0:2ccb9960a044 199 DBG("Headers sent");
donatien 0:2ccb9960a044 200 ret = send("\r\n");
donatien 5:791fc3dcb6c4 201 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 202
donatien 4:c071b05ac026 203 char buf[CHUNK_SIZE];
donatien 4:c071b05ac026 204 size_t trfLen;
donatien 4:c071b05ac026 205
donatien 0:2ccb9960a044 206 //Send data (if POST)
donatien 0:2ccb9960a044 207 if( (method == HTTP_POST) && (pDataOut != NULL) )
donatien 0:2ccb9960a044 208 {
donatien 0:2ccb9960a044 209 DBG("Sending data");
donatien 0:2ccb9960a044 210 while(true)
donatien 0:2ccb9960a044 211 {
donatien 0:2ccb9960a044 212 size_t writtenLen = 0;
donatien 0:2ccb9960a044 213 pDataOut->read(buf, CHUNK_SIZE, &trfLen);
donatien 0:2ccb9960a044 214 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 215 {
donatien 0:2ccb9960a044 216 //Write chunk header
donatien 0:2ccb9960a044 217 snprintf(line, sizeof(line), "%X\r\n", trfLen); //In hex encoding
donatien 0:2ccb9960a044 218 ret = send(line);
donatien 5:791fc3dcb6c4 219 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 220 }
donatien 0:2ccb9960a044 221 else if( trfLen == 0 )
donatien 0:2ccb9960a044 222 {
donatien 0:2ccb9960a044 223 break;
donatien 0:2ccb9960a044 224 }
donatien 0:2ccb9960a044 225 if( trfLen != 0 )
donatien 0:2ccb9960a044 226 {
donatien 0:2ccb9960a044 227 ret = send(buf, trfLen);
donatien 5:791fc3dcb6c4 228 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 229 }
donatien 0:2ccb9960a044 230
donatien 0:2ccb9960a044 231 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 232 {
donatien 0:2ccb9960a044 233 ret = send("\r\n"); //Chunk-terminating CRLF
donatien 5:791fc3dcb6c4 234 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 235 }
donatien 0:2ccb9960a044 236 else
donatien 0:2ccb9960a044 237 {
donatien 0:2ccb9960a044 238 writtenLen += trfLen;
donatien 0:2ccb9960a044 239 if( writtenLen >= pDataOut->getDataLen() )
donatien 0:2ccb9960a044 240 {
donatien 0:2ccb9960a044 241 break;
donatien 0:2ccb9960a044 242 }
donatien 0:2ccb9960a044 243 }
donatien 0:2ccb9960a044 244
donatien 0:2ccb9960a044 245 if( trfLen == 0 )
donatien 0:2ccb9960a044 246 {
donatien 0:2ccb9960a044 247 break;
donatien 0:2ccb9960a044 248 }
donatien 0:2ccb9960a044 249 }
donatien 0:2ccb9960a044 250
donatien 0:2ccb9960a044 251 }
donatien 0:2ccb9960a044 252
donatien 0:2ccb9960a044 253 //Receive response
donatien 0:2ccb9960a044 254 DBG("Receiving response");
donatien 4:c071b05ac026 255 ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes
donatien 5:791fc3dcb6c4 256 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 257
donatien 0:2ccb9960a044 258 buf[trfLen] = '\0';
donatien 0:2ccb9960a044 259
donatien 0:2ccb9960a044 260 char* crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 261 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 262 {
donatien 5:791fc3dcb6c4 263 PRTCL_ERR();
donatien 0:2ccb9960a044 264 }
donatien 0:2ccb9960a044 265
donatien 4:c071b05ac026 266 int crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 267 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 268
donatien 0:2ccb9960a044 269 //Parse HTTP response
donatien 0:2ccb9960a044 270 if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
donatien 0:2ccb9960a044 271 {
donatien 0:2ccb9960a044 272 //Cannot match string, error
donatien 0:2ccb9960a044 273 ERR("Not a correct HTTP answer : %s\n", buf);
donatien 5:791fc3dcb6c4 274 PRTCL_ERR();
donatien 0:2ccb9960a044 275 }
donatien 0:2ccb9960a044 276
donatien 0:2ccb9960a044 277 if(m_httpResponseCode != 200)
donatien 0:2ccb9960a044 278 {
donatien 0:2ccb9960a044 279 //Cannot match string, error
donatien 0:2ccb9960a044 280 WARN("Response code %d", m_httpResponseCode);
donatien 5:791fc3dcb6c4 281 PRTCL_ERR();
donatien 0:2ccb9960a044 282 }
donatien 0:2ccb9960a044 283
donatien 0:2ccb9960a044 284 DBG("Reading headers");
donatien 0:2ccb9960a044 285
donatien 4:c071b05ac026 286 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 287 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 288
donatien 4:c071b05ac026 289 size_t recvContentLength = 0;
donatien 4:c071b05ac026 290 bool recvChunked = false;
donatien 0:2ccb9960a044 291 //Now get headers
donatien 0:2ccb9960a044 292 while( true )
donatien 0:2ccb9960a044 293 {
donatien 0:2ccb9960a044 294 crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 295 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 296 {
donatien 4:c071b05ac026 297 if( trfLen < CHUNK_SIZE - 1 )
donatien 0:2ccb9960a044 298 {
donatien 0:2ccb9960a044 299 size_t newTrfLen;
donatien 0:2ccb9960a044 300 ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 301 trfLen += newTrfLen;
donatien 0:2ccb9960a044 302 buf[trfLen] = '\0';
donatien 4:c071b05ac026 303 DBG("Read %d chars; In buf: [%s]", newTrfLen, buf);
donatien 5:791fc3dcb6c4 304 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 305 continue;
donatien 0:2ccb9960a044 306 }
donatien 0:2ccb9960a044 307 else
donatien 0:2ccb9960a044 308 {
donatien 5:791fc3dcb6c4 309 PRTCL_ERR();
donatien 0:2ccb9960a044 310 }
donatien 0:2ccb9960a044 311 }
donatien 0:2ccb9960a044 312
donatien 0:2ccb9960a044 313 crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 314
donatien 0:2ccb9960a044 315 if(crlfPos == 0) //End of headers
donatien 0:2ccb9960a044 316 {
donatien 0:2ccb9960a044 317 DBG("Headers read");
donatien 4:c071b05ac026 318 memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 319 trfLen -= 2;
donatien 0:2ccb9960a044 320 break;
donatien 0:2ccb9960a044 321 }
donatien 0:2ccb9960a044 322
donatien 0:2ccb9960a044 323 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 324
donatien 4:c071b05ac026 325 char key[32];
donatien 4:c071b05ac026 326 char value[32];
donatien 0:2ccb9960a044 327
donatien 4:c071b05ac026 328 key[31] = '\0';
donatien 4:c071b05ac026 329 value[31] = '\0';
donatien 4:c071b05ac026 330
donatien 4:c071b05ac026 331 int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value);
donatien 0:2ccb9960a044 332 if ( n == 2 )
donatien 0:2ccb9960a044 333 {
donatien 0:2ccb9960a044 334 DBG("Read header : %s: %s\n", key, value);
donatien 0:2ccb9960a044 335 if( !strcmp(key, "Content-Length") )
donatien 0:2ccb9960a044 336 {
donatien 0:2ccb9960a044 337 sscanf(value, "%d", &recvContentLength);
donatien 0:2ccb9960a044 338 pDataIn->setDataLen(recvContentLength);
donatien 0:2ccb9960a044 339 }
donatien 0:2ccb9960a044 340 else if( !strcmp(key, "Transfer-Encoding") )
donatien 0:2ccb9960a044 341 {
donatien 0:2ccb9960a044 342 if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") )
donatien 0:2ccb9960a044 343 {
donatien 0:2ccb9960a044 344 recvChunked = true;
donatien 0:2ccb9960a044 345 pDataIn->setIsChunked(true);
donatien 0:2ccb9960a044 346 }
donatien 0:2ccb9960a044 347 }
donatien 0:2ccb9960a044 348 else if( !strcmp(key, "Content-Type") )
donatien 0:2ccb9960a044 349 {
donatien 0:2ccb9960a044 350 pDataIn->setDataType(value);
donatien 0:2ccb9960a044 351 }
donatien 0:2ccb9960a044 352
donatien 4:c071b05ac026 353 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 354 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 355
donatien 0:2ccb9960a044 356 }
donatien 0:2ccb9960a044 357 else
donatien 0:2ccb9960a044 358 {
donatien 0:2ccb9960a044 359 ERR("Could not parse header");
donatien 5:791fc3dcb6c4 360 PRTCL_ERR();
donatien 0:2ccb9960a044 361 }
donatien 0:2ccb9960a044 362
donatien 0:2ccb9960a044 363 }
donatien 0:2ccb9960a044 364
donatien 0:2ccb9960a044 365 //Receive data
donatien 0:2ccb9960a044 366 DBG("Receiving data");
donatien 0:2ccb9960a044 367 while(true)
donatien 0:2ccb9960a044 368 {
donatien 0:2ccb9960a044 369 size_t readLen = 0;
donatien 0:2ccb9960a044 370
donatien 0:2ccb9960a044 371 if( recvChunked )
donatien 0:2ccb9960a044 372 {
donatien 0:2ccb9960a044 373 //Read chunk header
donatien 0:2ccb9960a044 374 crlfPos=0;
donatien 0:2ccb9960a044 375 for(crlfPos++; crlfPos < trfLen - 2; crlfPos++)
donatien 0:2ccb9960a044 376 {
donatien 0:2ccb9960a044 377 if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' )
donatien 0:2ccb9960a044 378 {
donatien 0:2ccb9960a044 379 break;
donatien 0:2ccb9960a044 380 }
donatien 0:2ccb9960a044 381 }
donatien 0:2ccb9960a044 382 if(crlfPos >= trfLen - 2) //Try to read more
donatien 0:2ccb9960a044 383 {
donatien 0:2ccb9960a044 384 if( trfLen < CHUNK_SIZE )
donatien 0:2ccb9960a044 385 {
donatien 0:2ccb9960a044 386 size_t newTrfLen;
donatien 0:2ccb9960a044 387 ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 388 trfLen += newTrfLen;
donatien 5:791fc3dcb6c4 389 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 390 continue;
donatien 0:2ccb9960a044 391 }
donatien 0:2ccb9960a044 392 else
donatien 0:2ccb9960a044 393 {
donatien 5:791fc3dcb6c4 394 PRTCL_ERR();
donatien 0:2ccb9960a044 395 }
donatien 0:2ccb9960a044 396 }
donatien 0:2ccb9960a044 397 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 398 int n = sscanf(buf, "%x", &readLen);
donatien 0:2ccb9960a044 399 if(n!=1)
donatien 0:2ccb9960a044 400 {
donatien 0:2ccb9960a044 401 ERR("Could not read chunk length");
donatien 5:791fc3dcb6c4 402 PRTCL_ERR();
donatien 0:2ccb9960a044 403 }
donatien 0:2ccb9960a044 404
donatien 4:c071b05ac026 405 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more
donatien 0:2ccb9960a044 406 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 407
donatien 0:2ccb9960a044 408 if( readLen == 0 )
donatien 0:2ccb9960a044 409 {
donatien 0:2ccb9960a044 410 //Last chunk
donatien 0:2ccb9960a044 411 break;
donatien 0:2ccb9960a044 412 }
donatien 0:2ccb9960a044 413 }
donatien 0:2ccb9960a044 414 else
donatien 0:2ccb9960a044 415 {
donatien 0:2ccb9960a044 416 readLen = recvContentLength;
donatien 0:2ccb9960a044 417 }
donatien 0:2ccb9960a044 418
donatien 0:2ccb9960a044 419 DBG("Retrieving %d bytes", readLen);
donatien 0:2ccb9960a044 420
donatien 0:2ccb9960a044 421 do
donatien 0:2ccb9960a044 422 {
donatien 0:2ccb9960a044 423 pDataIn->write(buf, MIN(trfLen, readLen));
donatien 0:2ccb9960a044 424 if( trfLen > readLen )
donatien 0:2ccb9960a044 425 {
donatien 0:2ccb9960a044 426 memmove(buf, &buf[readLen], trfLen - readLen);
donatien 0:2ccb9960a044 427 trfLen -= readLen;
donatien 0:2ccb9960a044 428 readLen = 0;
donatien 0:2ccb9960a044 429 }
donatien 0:2ccb9960a044 430 else
donatien 0:2ccb9960a044 431 {
donatien 0:2ccb9960a044 432 readLen -= trfLen;
donatien 0:2ccb9960a044 433 }
donatien 0:2ccb9960a044 434
donatien 0:2ccb9960a044 435 if(readLen)
donatien 0:2ccb9960a044 436 {
donatien 0:2ccb9960a044 437 ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen);
donatien 5:791fc3dcb6c4 438 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 439 }
donatien 0:2ccb9960a044 440 } while(readLen);
donatien 0:2ccb9960a044 441
donatien 0:2ccb9960a044 442 if( recvChunked )
donatien 0:2ccb9960a044 443 {
donatien 0:2ccb9960a044 444 if(trfLen < 2)
donatien 0:2ccb9960a044 445 {
donatien 0:2ccb9960a044 446 size_t newTrfLen;
donatien 0:2ccb9960a044 447 //Read missing chars to find end of chunk
donatien 0:2ccb9960a044 448 ret = recv(buf, 2 - trfLen, CHUNK_SIZE, &newTrfLen);
donatien 5:791fc3dcb6c4 449 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 450 trfLen += newTrfLen;
donatien 0:2ccb9960a044 451 }
donatien 0:2ccb9960a044 452 if( (buf[0] != '\r') || (buf[1] != '\n') )
donatien 0:2ccb9960a044 453 {
donatien 0:2ccb9960a044 454 ERR("Format error");
donatien 5:791fc3dcb6c4 455 PRTCL_ERR();
donatien 0:2ccb9960a044 456 }
donatien 0:2ccb9960a044 457 memmove(buf, &buf[2], trfLen - 2);
donatien 0:2ccb9960a044 458 trfLen -= 2;
donatien 0:2ccb9960a044 459 }
donatien 0:2ccb9960a044 460 else
donatien 0:2ccb9960a044 461 {
donatien 0:2ccb9960a044 462 break;
donatien 0:2ccb9960a044 463 }
donatien 0:2ccb9960a044 464
donatien 0:2ccb9960a044 465 }
donatien 0:2ccb9960a044 466
donatien 5:791fc3dcb6c4 467 ::close(m_sock);
donatien 0:2ccb9960a044 468 DBG("Completed HTTP transaction");
donatien 0:2ccb9960a044 469
donatien 0:2ccb9960a044 470 return OK;
donatien 0:2ccb9960a044 471 }
donatien 0:2ccb9960a044 472
donatien 0:2ccb9960a044 473 int HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure
donatien 0:2ccb9960a044 474 {
donatien 0:2ccb9960a044 475 DBG("Trying to read between %d and %d bytes", minLen, maxLen);
donatien 0:2ccb9960a044 476 size_t readLen = 0;
donatien 0:2ccb9960a044 477 while(readLen < minLen)
donatien 0:2ccb9960a044 478 {
donatien 0:2ccb9960a044 479 //Wait for socket to be readable
donatien 0:2ccb9960a044 480 //Creating FS set
donatien 0:2ccb9960a044 481 fd_set socksSet;
donatien 0:2ccb9960a044 482 FD_ZERO(&socksSet);
donatien 0:2ccb9960a044 483 FD_SET(m_sock, &socksSet);
donatien 0:2ccb9960a044 484 struct timeval t_val;
donatien 0:2ccb9960a044 485 t_val.tv_sec = m_timeout / 1000;
donatien 0:2ccb9960a044 486 t_val.tv_usec = (m_timeout - (t_val.tv_sec * 1000)) * 1000;
donatien 5:791fc3dcb6c4 487 int ret = ::select(FD_SETSIZE, &socksSet, NULL, NULL, &t_val);
donatien 0:2ccb9960a044 488 if(ret <= 0 || !FD_ISSET(m_sock, &socksSet))
donatien 0:2ccb9960a044 489 {
donatien 0:2ccb9960a044 490 WARN("Timeout");
donatien 0:2ccb9960a044 491 return NET_TIMEOUT; //Timeout
donatien 0:2ccb9960a044 492 }
donatien 0:2ccb9960a044 493
donatien 5:791fc3dcb6c4 494 ret = ::recv(m_sock, buf + readLen, maxLen - readLen, 0);
donatien 0:2ccb9960a044 495 if( ret > 0)
donatien 0:2ccb9960a044 496 {
donatien 0:2ccb9960a044 497 readLen += ret;
donatien 0:2ccb9960a044 498 continue;
donatien 0:2ccb9960a044 499 }
donatien 0:2ccb9960a044 500 else if( ret == 0 )
donatien 0:2ccb9960a044 501 {
donatien 0:2ccb9960a044 502 WARN("Connection was closed by server");
donatien 0:2ccb9960a044 503 return NET_CLOSED; //Connection was closed by server
donatien 0:2ccb9960a044 504 }
donatien 0:2ccb9960a044 505 else
donatien 0:2ccb9960a044 506 {
donatien 0:2ccb9960a044 507 ERR("Connection error (recv returned %d)", ret);
donatien 0:2ccb9960a044 508 return NET_CONN;
donatien 0:2ccb9960a044 509 }
donatien 0:2ccb9960a044 510 }
donatien 0:2ccb9960a044 511 *pReadLen = readLen;
donatien 0:2ccb9960a044 512 DBG("Read %d bytes", readLen);
donatien 0:2ccb9960a044 513 return OK;
donatien 0:2ccb9960a044 514 }
donatien 0:2ccb9960a044 515
donatien 0:2ccb9960a044 516 int HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure
donatien 0:2ccb9960a044 517 {
donatien 0:2ccb9960a044 518 if(len == 0)
donatien 0:2ccb9960a044 519 {
donatien 0:2ccb9960a044 520 len = strlen(buf);
donatien 0:2ccb9960a044 521 }
donatien 0:2ccb9960a044 522 DBG("Trying to write %d bytes", len);
donatien 0:2ccb9960a044 523 size_t writtenLen = 0;
donatien 0:2ccb9960a044 524 while(writtenLen < len)
donatien 0:2ccb9960a044 525 {
donatien 0:2ccb9960a044 526 //Wait for socket to be writeable
donatien 0:2ccb9960a044 527 //Creating FS set
donatien 0:2ccb9960a044 528 fd_set socksSet;
donatien 0:2ccb9960a044 529 FD_ZERO(&socksSet);
donatien 0:2ccb9960a044 530 FD_SET(m_sock, &socksSet);
donatien 0:2ccb9960a044 531 struct timeval t_val;
donatien 0:2ccb9960a044 532 t_val.tv_sec = m_timeout / 1000;
donatien 0:2ccb9960a044 533 t_val.tv_usec = (m_timeout - (t_val.tv_sec * 1000)) * 1000;
donatien 5:791fc3dcb6c4 534 int ret = ::select(FD_SETSIZE, NULL, &socksSet, NULL, &t_val);
donatien 0:2ccb9960a044 535 if(ret <= 0 || !FD_ISSET(m_sock, &socksSet))
donatien 0:2ccb9960a044 536 {
donatien 0:2ccb9960a044 537 WARN("Timeout");
donatien 0:2ccb9960a044 538 return NET_TIMEOUT; //Timeout
donatien 0:2ccb9960a044 539 }
donatien 0:2ccb9960a044 540
donatien 5:791fc3dcb6c4 541 ret = ::send(m_sock, buf + writtenLen, len - writtenLen, 0);
donatien 0:2ccb9960a044 542 if( ret > 0)
donatien 0:2ccb9960a044 543 {
donatien 0:2ccb9960a044 544 writtenLen += ret;
donatien 0:2ccb9960a044 545 continue;
donatien 0:2ccb9960a044 546 }
donatien 0:2ccb9960a044 547 else if( ret == 0 )
donatien 0:2ccb9960a044 548 {
donatien 0:2ccb9960a044 549 WARN("Connection was closed by server");
donatien 0:2ccb9960a044 550 return NET_CLOSED; //Connection was closed by server
donatien 0:2ccb9960a044 551 }
donatien 0:2ccb9960a044 552 else
donatien 0:2ccb9960a044 553 {
donatien 0:2ccb9960a044 554 ERR("Connection error (recv returned %d)", ret);
donatien 0:2ccb9960a044 555 return NET_CONN;
donatien 0:2ccb9960a044 556 }
donatien 0:2ccb9960a044 557 }
donatien 0:2ccb9960a044 558 DBG("Written %d bytes", writtenLen);
donatien 0:2ccb9960a044 559 return OK;
donatien 0:2ccb9960a044 560 }
donatien 0:2ccb9960a044 561
donatien 0:2ccb9960a044 562 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 563 {
donatien 0:2ccb9960a044 564 char* schemePtr = (char*) url;
donatien 0:2ccb9960a044 565 char* hostPtr = (char*) strstr(url, "://");
donatien 0:2ccb9960a044 566 if(hostPtr == NULL)
donatien 0:2ccb9960a044 567 {
donatien 0:2ccb9960a044 568 WARN("Could not find host");
donatien 0:2ccb9960a044 569 return NET_INVALID; //URL is invalid
donatien 0:2ccb9960a044 570 }
donatien 0:2ccb9960a044 571
donatien 0:2ccb9960a044 572 if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 573 {
donatien 0:2ccb9960a044 574 WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1);
donatien 0:2ccb9960a044 575 return NET_TOOSMALL;
donatien 0:2ccb9960a044 576 }
donatien 0:2ccb9960a044 577 memcpy(scheme, schemePtr, hostPtr - schemePtr);
donatien 0:2ccb9960a044 578 scheme[hostPtr - schemePtr] = '\0';
donatien 0:2ccb9960a044 579
donatien 0:2ccb9960a044 580 hostPtr+=3;
donatien 0:2ccb9960a044 581
donatien 0:2ccb9960a044 582 size_t hostLen = 0;
donatien 0:2ccb9960a044 583
donatien 0:2ccb9960a044 584 char* portPtr = strchr(hostPtr, ':');
donatien 0:2ccb9960a044 585 if( portPtr != NULL )
donatien 0:2ccb9960a044 586 {
donatien 0:2ccb9960a044 587 hostLen = portPtr - hostPtr;
donatien 0:2ccb9960a044 588 portPtr++;
donatien 0:2ccb9960a044 589 if( sscanf(portPtr, "%d", &port) != 1)
donatien 0:2ccb9960a044 590 {
donatien 0:2ccb9960a044 591 WARN("Could not find port");
donatien 0:2ccb9960a044 592 return NET_INVALID;
donatien 0:2ccb9960a044 593 }
donatien 0:2ccb9960a044 594 }
donatien 0:2ccb9960a044 595 else
donatien 0:2ccb9960a044 596 {
donatien 0:2ccb9960a044 597 *port=0;
donatien 0:2ccb9960a044 598 }
donatien 0:2ccb9960a044 599 char* pathPtr = strchr(hostPtr, '/');
donatien 0:2ccb9960a044 600 if( hostLen == 0 )
donatien 0:2ccb9960a044 601 {
donatien 0:2ccb9960a044 602 hostLen = pathPtr - hostPtr;
donatien 0:2ccb9960a044 603 }
donatien 0:2ccb9960a044 604
donatien 0:2ccb9960a044 605 if( maxHostLen < hostLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 606 {
donatien 0:2ccb9960a044 607 WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1);
donatien 0:2ccb9960a044 608 return NET_TOOSMALL;
donatien 0:2ccb9960a044 609 }
donatien 0:2ccb9960a044 610 memcpy(host, hostPtr, hostLen);
donatien 0:2ccb9960a044 611 host[hostLen] = '\0';
donatien 0:2ccb9960a044 612
donatien 0:2ccb9960a044 613 size_t pathLen;
donatien 0:2ccb9960a044 614 char* fragmentPtr = strchr(hostPtr, '#');
donatien 0:2ccb9960a044 615 if(fragmentPtr != NULL)
donatien 0:2ccb9960a044 616 {
donatien 0:2ccb9960a044 617 pathLen = fragmentPtr - pathPtr;
donatien 0:2ccb9960a044 618 }
donatien 0:2ccb9960a044 619 else
donatien 0:2ccb9960a044 620 {
donatien 0:2ccb9960a044 621 pathLen = strlen(pathPtr);
donatien 0:2ccb9960a044 622 }
donatien 0:2ccb9960a044 623
donatien 0:2ccb9960a044 624 if( maxPathLen < pathLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 625 {
donatien 0:2ccb9960a044 626 WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1);
donatien 0:2ccb9960a044 627 return NET_TOOSMALL;
donatien 0:2ccb9960a044 628 }
donatien 0:2ccb9960a044 629 memcpy(path, pathPtr, pathLen);
donatien 0:2ccb9960a044 630 path[pathLen] = '\0';
donatien 0:2ccb9960a044 631
donatien 0:2ccb9960a044 632 return OK;
donatien 0:2ccb9960a044 633 }