David Smart / HTTPClient Featured

Fixed custom headers and Basic authorization, added support for redirection, functional file download interface can be used for SW updates and more.

Dependents:   Sample_HTTPClient Sample_HTTPClient LWM2M_NanoService_Ethernet LWM2M_NanoService_Ethernet ... more

Fork of HTTPClient by Vincent Wochnik

More recent changes - added iCal processing.

Derivative of a derivative, however this one works when it comes to supplying Basic authorization to access a protected resource. Some additional changes to the debug interface to clean it up for consistency with many other components I have.

HTTPClient.cpp@18:cf5d7427a9ec, 2013-04-28 (annotated)

Committer:
kazushi2008
Date:
Sun Apr 28 10:04:51 2013 +0000
Revision:
18:cf5d7427a9ec
Parent:
17:8299c6440e37
Child:
19:bcbf0af9fac3
implemented basicauth function

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 16:1f743885e7de 21 #if 0
donatien 12:89d09a6db00a 22 //Enable debug
donatien 11:390362de8c3f 23 #include <cstdio>
donatien 16:1f743885e7de 24 #define DBG(x, ...) std::printf("[HTTPClient : DBG]"x"\r\n", ##__VA_ARGS__);
donatien 11:390362de8c3f 25 #define WARN(x, ...) std::printf("[HTTPClient : WARN]"x"\r\n", ##__VA_ARGS__);
donatien 11:390362de8c3f 26 #define ERR(x, ...) std::printf("[HTTPClient : ERR]"x"\r\n", ##__VA_ARGS__);
donatien 12:89d09a6db00a 27
donatien 12:89d09a6db00a 28 #else
donatien 12:89d09a6db00a 29 //Disable debug
donatien 12:89d09a6db00a 30 #define DBG(x, ...)
donatien 12:89d09a6db00a 31 #define WARN(x, ...)
donatien 12:89d09a6db00a 32 #define ERR(x, ...)
donatien 12:89d09a6db00a 33
donatien 7:4e39864f7b15 34 #endif
donatien 0:2ccb9960a044 35
donatien 0:2ccb9960a044 36 #define HTTP_PORT 80
donatien 0:2ccb9960a044 37
donatien 11:390362de8c3f 38 #define OK 0
donatien 11:390362de8c3f 39
donatien 11:390362de8c3f 40 #define MIN(x,y) (((x)<(y))?(x):(y))
donatien 11:390362de8c3f 41 #define MAX(x,y) (((x)>(y))?(x):(y))
donatien 11:390362de8c3f 42
donatien 0:2ccb9960a044 43 #define CHUNK_SIZE 256
donatien 0:2ccb9960a044 44
donatien 0:2ccb9960a044 45 #include <cstring>
donatien 0:2ccb9960a044 46
donatien 11:390362de8c3f 47 #include "HTTPClient.h"
donatien 11:390362de8c3f 48
donatien 0:2ccb9960a044 49 HTTPClient::HTTPClient() :
donatien 7:4e39864f7b15 50 m_sock(), m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0)
donatien 0:2ccb9960a044 51 {
donatien 0:2ccb9960a044 52
donatien 0:2ccb9960a044 53 }
donatien 0:2ccb9960a044 54
donatien 0:2ccb9960a044 55 HTTPClient::~HTTPClient()
donatien 0:2ccb9960a044 56 {
donatien 0:2ccb9960a044 57
donatien 0:2ccb9960a044 58 }
donatien 0:2ccb9960a044 59
stevep 17:8299c6440e37 60 #if 1
kazushi2008 18:cf5d7427a9ec 61 char auth[512];
donatien 0:2ccb9960a044 62 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
donatien 0:2ccb9960a044 63 {
donatien 0:2ccb9960a044 64 m_basicAuthUser = user;
donatien 0:2ccb9960a044 65 m_basicAuthPassword = password;
kazushi2008 18:cf5d7427a9ec 66 createauth(m_basicAuthUser, m_basicAuthPassword, auth, strlen(auth));
donatien 0:2ccb9960a044 67 }
donatien 0:2ccb9960a044 68 #endif
donatien 0:2ccb9960a044 69
donatien 12:89d09a6db00a 70 HTTPResult HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 71 {
donatien 0:2ccb9960a044 72 return connect(url, HTTP_GET, NULL, pDataIn, timeout);
donatien 0:2ccb9960a044 73 }
donatien 0:2ccb9960a044 74
donatien 12:89d09a6db00a 75 HTTPResult HTTPClient::get(const char* url, char* result, size_t maxResultLen, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 76 {
donatien 0:2ccb9960a044 77 HTTPText str(result, maxResultLen);
donatien 0:2ccb9960a044 78 return get(url, &str, timeout);
donatien 0:2ccb9960a044 79 }
donatien 0:2ccb9960a044 80
donatien 12:89d09a6db00a 81 HTTPResult HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 82 {
donatien 0:2ccb9960a044 83 return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 0:2ccb9960a044 84 }
donatien 0:2ccb9960a044 85
donatien 16:1f743885e7de 86 HTTPResult HTTPClient::put(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 16:1f743885e7de 87 {
donatien 16:1f743885e7de 88 return connect(url, HTTP_PUT, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 16:1f743885e7de 89 }
donatien 16:1f743885e7de 90
donatien 16:1f743885e7de 91 HTTPResult HTTPClient::del(const char* url, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 16:1f743885e7de 92 {
donatien 16:1f743885e7de 93 return connect(url, HTTP_DELETE, NULL, pDataIn, timeout);
donatien 16:1f743885e7de 94 }
donatien 16:1f743885e7de 95
donatien 16:1f743885e7de 96
donatien 0:2ccb9960a044 97 int HTTPClient::getHTTPResponseCode()
donatien 0:2ccb9960a044 98 {
donatien 0:2ccb9960a044 99 return m_httpResponseCode;
donatien 0:2ccb9960a044 100 }
donatien 0:2ccb9960a044 101
donatien 5:791fc3dcb6c4 102 #define CHECK_CONN_ERR(ret) \
donatien 5:791fc3dcb6c4 103 do{ \
donatien 7:4e39864f7b15 104 if(ret) { \
donatien 7:4e39864f7b15 105 m_sock.close(); \
donatien 5:791fc3dcb6c4 106 ERR("Connection error (%d)", ret); \
donatien 11:390362de8c3f 107 return HTTP_CONN; \
donatien 5:791fc3dcb6c4 108 } \
donatien 5:791fc3dcb6c4 109 } while(0)
donatien 5:791fc3dcb6c4 110
donatien 5:791fc3dcb6c4 111 #define PRTCL_ERR() \
donatien 5:791fc3dcb6c4 112 do{ \
donatien 7:4e39864f7b15 113 m_sock.close(); \
donatien 5:791fc3dcb6c4 114 ERR("Protocol error"); \
donatien 11:390362de8c3f 115 return HTTP_PRTCL; \
donatien 5:791fc3dcb6c4 116 } while(0)
donatien 0:2ccb9960a044 117
donatien 12:89d09a6db00a 118 HTTPResult HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, int timeout) //Execute request
donatien 12:89d09a6db00a 119 {
donatien 0:2ccb9960a044 120 m_httpResponseCode = 0; //Invalidate code
donatien 0:2ccb9960a044 121 m_timeout = timeout;
donatien 16:1f743885e7de 122
donatien 16:1f743885e7de 123 pDataIn->writeReset();
donatien 16:1f743885e7de 124 if( pDataOut )
donatien 16:1f743885e7de 125 {
donatien 16:1f743885e7de 126 pDataOut->readReset();
donatien 16:1f743885e7de 127 }
donatien 0:2ccb9960a044 128
donatien 0:2ccb9960a044 129 char scheme[8];
donatien 0:2ccb9960a044 130 uint16_t port;
donatien 0:2ccb9960a044 131 char host[32];
donatien 0:2ccb9960a044 132 char path[64];
donatien 0:2ccb9960a044 133 //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?)
donatien 11:390362de8c3f 134 HTTPResult res = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path));
donatien 11:390362de8c3f 135 if(res != HTTP_OK)
donatien 0:2ccb9960a044 136 {
donatien 11:390362de8c3f 137 ERR("parseURL returned %d", res);
donatien 11:390362de8c3f 138 return res;
donatien 0:2ccb9960a044 139 }
donatien 0:2ccb9960a044 140
donatien 0:2ccb9960a044 141 if(port == 0) //TODO do handle HTTPS->443
donatien 0:2ccb9960a044 142 {
donatien 0:2ccb9960a044 143 port = 80;
donatien 0:2ccb9960a044 144 }
donatien 0:2ccb9960a044 145
donatien 0:2ccb9960a044 146 DBG("Scheme: %s", scheme);
donatien 0:2ccb9960a044 147 DBG("Host: %s", host);
donatien 0:2ccb9960a044 148 DBG("Port: %d", port);
donatien 0:2ccb9960a044 149 DBG("Path: %s", path);
donatien 0:2ccb9960a044 150
donatien 7:4e39864f7b15 151 //Connect
donatien 7:4e39864f7b15 152 DBG("Connecting socket to server");
donatien 11:390362de8c3f 153 int ret = m_sock.connect(host, port);
donatien 0:2ccb9960a044 154 if (ret < 0)
donatien 0:2ccb9960a044 155 {
donatien 7:4e39864f7b15 156 m_sock.close();
donatien 0:2ccb9960a044 157 ERR("Could not connect");
donatien 11:390362de8c3f 158 return HTTP_CONN;
donatien 0:2ccb9960a044 159 }
donatien 0:2ccb9960a044 160
donatien 0:2ccb9960a044 161 //Send request
donatien 0:2ccb9960a044 162 DBG("Sending request");
donatien 9:ff30cc189191 163 char buf[CHUNK_SIZE];
donatien 16:1f743885e7de 164 const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":(method==HTTP_PUT)?"PUT":(method==HTTP_DELETE)?"DELETE":"";
kazushi2008 18:cf5d7427a9ec 165 if((!m_basicAuthUser)&&(!strlen(m_basicAuthUser))){
kazushi2008 18:cf5d7427a9ec 166 snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request
kazushi2008 18:cf5d7427a9ec 167 } else {
kazushi2008 18:cf5d7427a9ec 168 //printf("auth: %s\r\n", auth);
kazushi2008 18:cf5d7427a9ec 169 snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n%s\r\n", meth, path, host, auth); //Write request with basic auth
kazushi2008 18:cf5d7427a9ec 170 }
donatien 9:ff30cc189191 171 ret = send(buf);
donatien 0:2ccb9960a044 172 if(ret)
donatien 0:2ccb9960a044 173 {
donatien 7:4e39864f7b15 174 m_sock.close();
donatien 0:2ccb9960a044 175 ERR("Could not write request");
donatien 11:390362de8c3f 176 return HTTP_CONN;
donatien 0:2ccb9960a044 177 }
donatien 0:2ccb9960a044 178
donatien 0:2ccb9960a044 179 //Send all headers
donatien 0:2ccb9960a044 180
donatien 0:2ccb9960a044 181 //Send default headers
donatien 0:2ccb9960a044 182 DBG("Sending headers");
donatien 16:1f743885e7de 183 if( pDataOut != NULL )
donatien 0:2ccb9960a044 184 {
donatien 0:2ccb9960a044 185 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 186 {
donatien 0:2ccb9960a044 187 ret = send("Transfer-Encoding: chunked\r\n");
donatien 5:791fc3dcb6c4 188 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 189 }
donatien 0:2ccb9960a044 190 else
donatien 0:2ccb9960a044 191 {
donatien 9:ff30cc189191 192 snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen());
donatien 9:ff30cc189191 193 ret = send(buf);
donatien 5:791fc3dcb6c4 194 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 195 }
donatien 0:2ccb9960a044 196 char type[48];
donatien 11:390362de8c3f 197 if( pDataOut->getDataType(type, 48) == HTTP_OK )
donatien 0:2ccb9960a044 198 {
donatien 9:ff30cc189191 199 snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type);
donatien 9:ff30cc189191 200 ret = send(buf);
donatien 5:791fc3dcb6c4 201 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 202 }
donatien 0:2ccb9960a044 203 }
donatien 9:ff30cc189191 204
donatien 0:2ccb9960a044 205 //Close headers
donatien 0:2ccb9960a044 206 DBG("Headers sent");
donatien 0:2ccb9960a044 207 ret = send("\r\n");
donatien 5:791fc3dcb6c4 208 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 209
donatien 4:c071b05ac026 210 size_t trfLen;
donatien 9:ff30cc189191 211
donatien 16:1f743885e7de 212 //Send data (if available)
donatien 16:1f743885e7de 213 if( pDataOut != NULL )
donatien 0:2ccb9960a044 214 {
donatien 0:2ccb9960a044 215 DBG("Sending data");
donatien 0:2ccb9960a044 216 while(true)
donatien 0:2ccb9960a044 217 {
donatien 0:2ccb9960a044 218 size_t writtenLen = 0;
donatien 0:2ccb9960a044 219 pDataOut->read(buf, CHUNK_SIZE, &trfLen);
donatien 0:2ccb9960a044 220 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 221 {
donatien 0:2ccb9960a044 222 //Write chunk header
donatien 9:ff30cc189191 223 char chunkHeader[16];
donatien 9:ff30cc189191 224 snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding
donatien 9:ff30cc189191 225 ret = send(chunkHeader);
donatien 5:791fc3dcb6c4 226 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 227 }
donatien 0:2ccb9960a044 228 else if( trfLen == 0 )
donatien 0:2ccb9960a044 229 {
donatien 0:2ccb9960a044 230 break;
donatien 0:2ccb9960a044 231 }
donatien 0:2ccb9960a044 232 if( trfLen != 0 )
donatien 0:2ccb9960a044 233 {
donatien 0:2ccb9960a044 234 ret = send(buf, trfLen);
donatien 5:791fc3dcb6c4 235 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 236 }
donatien 0:2ccb9960a044 237
donatien 0:2ccb9960a044 238 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 239 {
donatien 0:2ccb9960a044 240 ret = send("\r\n"); //Chunk-terminating CRLF
donatien 5:791fc3dcb6c4 241 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 242 }
donatien 0:2ccb9960a044 243 else
donatien 0:2ccb9960a044 244 {
donatien 0:2ccb9960a044 245 writtenLen += trfLen;
donatien 0:2ccb9960a044 246 if( writtenLen >= pDataOut->getDataLen() )
donatien 0:2ccb9960a044 247 {
donatien 0:2ccb9960a044 248 break;
donatien 0:2ccb9960a044 249 }
donatien 0:2ccb9960a044 250 }
donatien 0:2ccb9960a044 251
donatien 0:2ccb9960a044 252 if( trfLen == 0 )
donatien 0:2ccb9960a044 253 {
donatien 0:2ccb9960a044 254 break;
donatien 0:2ccb9960a044 255 }
donatien 0:2ccb9960a044 256 }
donatien 0:2ccb9960a044 257
donatien 0:2ccb9960a044 258 }
donatien 9:ff30cc189191 259
donatien 0:2ccb9960a044 260 //Receive response
donatien 0:2ccb9960a044 261 DBG("Receiving response");
donatien 4:c071b05ac026 262 ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes
donatien 5:791fc3dcb6c4 263 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 264
donatien 0:2ccb9960a044 265 buf[trfLen] = '\0';
donatien 0:2ccb9960a044 266
donatien 0:2ccb9960a044 267 char* crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 268 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 269 {
donatien 5:791fc3dcb6c4 270 PRTCL_ERR();
donatien 0:2ccb9960a044 271 }
donatien 0:2ccb9960a044 272
donatien 4:c071b05ac026 273 int crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 274 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 275
donatien 0:2ccb9960a044 276 //Parse HTTP response
donatien 0:2ccb9960a044 277 if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
donatien 0:2ccb9960a044 278 {
donatien 0:2ccb9960a044 279 //Cannot match string, error
donatien 0:2ccb9960a044 280 ERR("Not a correct HTTP answer : %s\n", buf);
donatien 5:791fc3dcb6c4 281 PRTCL_ERR();
donatien 0:2ccb9960a044 282 }
donatien 0:2ccb9960a044 283
donatien 16:1f743885e7de 284 if( (m_httpResponseCode < 200) || (m_httpResponseCode >= 300) )
donatien 0:2ccb9960a044 285 {
donatien 16:1f743885e7de 286 //Did not return a 2xx code; TODO fetch headers/(&data?) anyway and implement a mean of writing/reading headers
donatien 0:2ccb9960a044 287 WARN("Response code %d", m_httpResponseCode);
donatien 5:791fc3dcb6c4 288 PRTCL_ERR();
donatien 0:2ccb9960a044 289 }
donatien 0:2ccb9960a044 290
donatien 0:2ccb9960a044 291 DBG("Reading headers");
donatien 0:2ccb9960a044 292
donatien 4:c071b05ac026 293 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 294 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 295
donatien 4:c071b05ac026 296 size_t recvContentLength = 0;
donatien 4:c071b05ac026 297 bool recvChunked = false;
donatien 0:2ccb9960a044 298 //Now get headers
donatien 0:2ccb9960a044 299 while( true )
donatien 0:2ccb9960a044 300 {
donatien 0:2ccb9960a044 301 crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 302 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 303 {
donatien 4:c071b05ac026 304 if( trfLen < CHUNK_SIZE - 1 )
donatien 0:2ccb9960a044 305 {
donatien 0:2ccb9960a044 306 size_t newTrfLen;
donatien 0:2ccb9960a044 307 ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 308 trfLen += newTrfLen;
donatien 0:2ccb9960a044 309 buf[trfLen] = '\0';
donatien 4:c071b05ac026 310 DBG("Read %d chars; In buf: [%s]", newTrfLen, buf);
donatien 5:791fc3dcb6c4 311 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 312 continue;
donatien 0:2ccb9960a044 313 }
donatien 0:2ccb9960a044 314 else
donatien 0:2ccb9960a044 315 {
donatien 5:791fc3dcb6c4 316 PRTCL_ERR();
donatien 0:2ccb9960a044 317 }
donatien 0:2ccb9960a044 318 }
donatien 0:2ccb9960a044 319
donatien 0:2ccb9960a044 320 crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 321
donatien 0:2ccb9960a044 322 if(crlfPos == 0) //End of headers
donatien 0:2ccb9960a044 323 {
donatien 0:2ccb9960a044 324 DBG("Headers read");
donatien 4:c071b05ac026 325 memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 326 trfLen -= 2;
donatien 0:2ccb9960a044 327 break;
donatien 0:2ccb9960a044 328 }
donatien 0:2ccb9960a044 329
donatien 0:2ccb9960a044 330 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 331
donatien 4:c071b05ac026 332 char key[32];
donatien 4:c071b05ac026 333 char value[32];
donatien 0:2ccb9960a044 334
donatien 4:c071b05ac026 335 key[31] = '\0';
donatien 4:c071b05ac026 336 value[31] = '\0';
donatien 4:c071b05ac026 337
donatien 4:c071b05ac026 338 int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value);
donatien 0:2ccb9960a044 339 if ( n == 2 )
donatien 0:2ccb9960a044 340 {
donatien 0:2ccb9960a044 341 DBG("Read header : %s: %s\n", key, value);
donatien 0:2ccb9960a044 342 if( !strcmp(key, "Content-Length") )
donatien 0:2ccb9960a044 343 {
donatien 0:2ccb9960a044 344 sscanf(value, "%d", &recvContentLength);
donatien 0:2ccb9960a044 345 pDataIn->setDataLen(recvContentLength);
donatien 0:2ccb9960a044 346 }
donatien 0:2ccb9960a044 347 else if( !strcmp(key, "Transfer-Encoding") )
donatien 0:2ccb9960a044 348 {
donatien 0:2ccb9960a044 349 if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") )
donatien 0:2ccb9960a044 350 {
donatien 0:2ccb9960a044 351 recvChunked = true;
donatien 0:2ccb9960a044 352 pDataIn->setIsChunked(true);
donatien 0:2ccb9960a044 353 }
donatien 0:2ccb9960a044 354 }
donatien 0:2ccb9960a044 355 else if( !strcmp(key, "Content-Type") )
donatien 0:2ccb9960a044 356 {
donatien 0:2ccb9960a044 357 pDataIn->setDataType(value);
donatien 0:2ccb9960a044 358 }
donatien 0:2ccb9960a044 359
donatien 4:c071b05ac026 360 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 361 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 362
donatien 0:2ccb9960a044 363 }
donatien 0:2ccb9960a044 364 else
donatien 0:2ccb9960a044 365 {
donatien 0:2ccb9960a044 366 ERR("Could not parse header");
donatien 5:791fc3dcb6c4 367 PRTCL_ERR();
donatien 0:2ccb9960a044 368 }
donatien 0:2ccb9960a044 369
donatien 0:2ccb9960a044 370 }
donatien 0:2ccb9960a044 371
donatien 0:2ccb9960a044 372 //Receive data
donatien 0:2ccb9960a044 373 DBG("Receiving data");
donatien 0:2ccb9960a044 374 while(true)
donatien 0:2ccb9960a044 375 {
donatien 0:2ccb9960a044 376 size_t readLen = 0;
donatien 0:2ccb9960a044 377
donatien 0:2ccb9960a044 378 if( recvChunked )
donatien 0:2ccb9960a044 379 {
donatien 0:2ccb9960a044 380 //Read chunk header
donatien 14:2744e0c0e527 381 bool foundCrlf;
donatien 14:2744e0c0e527 382 do
donatien 0:2ccb9960a044 383 {
donatien 14:2744e0c0e527 384 foundCrlf = false;
donatien 14:2744e0c0e527 385 crlfPos=0;
donatien 14:2744e0c0e527 386 buf[trfLen]=0;
donatien 14:2744e0c0e527 387 if(trfLen >= 2)
donatien 0:2ccb9960a044 388 {
donatien 14:2744e0c0e527 389 for(; crlfPos < trfLen - 2; crlfPos++)
donatien 14:2744e0c0e527 390 {
donatien 14:2744e0c0e527 391 if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' )
donatien 14:2744e0c0e527 392 {
donatien 14:2744e0c0e527 393 foundCrlf = true;
donatien 14:2744e0c0e527 394 break;
donatien 14:2744e0c0e527 395 }
donatien 14:2744e0c0e527 396 }
donatien 0:2ccb9960a044 397 }
donatien 14:2744e0c0e527 398 if(!foundCrlf) //Try to read more
donatien 0:2ccb9960a044 399 {
donatien 14:2744e0c0e527 400 if( trfLen < CHUNK_SIZE )
donatien 14:2744e0c0e527 401 {
donatien 14:2744e0c0e527 402 size_t newTrfLen;
donatien 14:2744e0c0e527 403 ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 14:2744e0c0e527 404 trfLen += newTrfLen;
donatien 14:2744e0c0e527 405 CHECK_CONN_ERR(ret);
donatien 14:2744e0c0e527 406 continue;
donatien 14:2744e0c0e527 407 }
donatien 14:2744e0c0e527 408 else
donatien 14:2744e0c0e527 409 {
donatien 14:2744e0c0e527 410 PRTCL_ERR();
donatien 14:2744e0c0e527 411 }
donatien 0:2ccb9960a044 412 }
donatien 14:2744e0c0e527 413 } while(!foundCrlf);
donatien 0:2ccb9960a044 414 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 415 int n = sscanf(buf, "%x", &readLen);
donatien 0:2ccb9960a044 416 if(n!=1)
donatien 0:2ccb9960a044 417 {
donatien 15:5ad07f90e895 418 ERR("Could not read chunk length");
donatien 5:791fc3dcb6c4 419 PRTCL_ERR();
donatien 0:2ccb9960a044 420 }
donatien 0:2ccb9960a044 421
donatien 4:c071b05ac026 422 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more
donatien 0:2ccb9960a044 423 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 424
donatien 0:2ccb9960a044 425 if( readLen == 0 )
donatien 0:2ccb9960a044 426 {
donatien 0:2ccb9960a044 427 //Last chunk
donatien 0:2ccb9960a044 428 break;
donatien 0:2ccb9960a044 429 }
donatien 0:2ccb9960a044 430 }
donatien 0:2ccb9960a044 431 else
donatien 0:2ccb9960a044 432 {
donatien 0:2ccb9960a044 433 readLen = recvContentLength;
donatien 0:2ccb9960a044 434 }
donatien 0:2ccb9960a044 435
donatien 0:2ccb9960a044 436 DBG("Retrieving %d bytes", readLen);
donatien 0:2ccb9960a044 437
donatien 0:2ccb9960a044 438 do
donatien 0:2ccb9960a044 439 {
donatien 0:2ccb9960a044 440 pDataIn->write(buf, MIN(trfLen, readLen));
donatien 0:2ccb9960a044 441 if( trfLen > readLen )
donatien 0:2ccb9960a044 442 {
donatien 0:2ccb9960a044 443 memmove(buf, &buf[readLen], trfLen - readLen);
donatien 0:2ccb9960a044 444 trfLen -= readLen;
donatien 0:2ccb9960a044 445 readLen = 0;
donatien 0:2ccb9960a044 446 }
donatien 0:2ccb9960a044 447 else
donatien 0:2ccb9960a044 448 {
donatien 0:2ccb9960a044 449 readLen -= trfLen;
donatien 0:2ccb9960a044 450 }
donatien 0:2ccb9960a044 451
donatien 0:2ccb9960a044 452 if(readLen)
donatien 0:2ccb9960a044 453 {
donatien 0:2ccb9960a044 454 ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen);
donatien 5:791fc3dcb6c4 455 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 456 }
donatien 0:2ccb9960a044 457 } while(readLen);
donatien 0:2ccb9960a044 458
donatien 0:2ccb9960a044 459 if( recvChunked )
donatien 0:2ccb9960a044 460 {
donatien 0:2ccb9960a044 461 if(trfLen < 2)
donatien 0:2ccb9960a044 462 {
donatien 0:2ccb9960a044 463 size_t newTrfLen;
donatien 0:2ccb9960a044 464 //Read missing chars to find end of chunk
donatien 14:2744e0c0e527 465 ret = recv(buf + trfLen, 2 - trfLen, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 5:791fc3dcb6c4 466 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 467 trfLen += newTrfLen;
donatien 0:2ccb9960a044 468 }
donatien 0:2ccb9960a044 469 if( (buf[0] != '\r') || (buf[1] != '\n') )
donatien 0:2ccb9960a044 470 {
donatien 0:2ccb9960a044 471 ERR("Format error");
donatien 5:791fc3dcb6c4 472 PRTCL_ERR();
donatien 0:2ccb9960a044 473 }
donatien 0:2ccb9960a044 474 memmove(buf, &buf[2], trfLen - 2);
donatien 0:2ccb9960a044 475 trfLen -= 2;
donatien 0:2ccb9960a044 476 }
donatien 0:2ccb9960a044 477 else
donatien 0:2ccb9960a044 478 {
donatien 0:2ccb9960a044 479 break;
donatien 0:2ccb9960a044 480 }
donatien 0:2ccb9960a044 481
donatien 0:2ccb9960a044 482 }
donatien 0:2ccb9960a044 483
donatien 7:4e39864f7b15 484 m_sock.close();
donatien 0:2ccb9960a044 485 DBG("Completed HTTP transaction");
donatien 0:2ccb9960a044 486
donatien 11:390362de8c3f 487 return HTTP_OK;
donatien 0:2ccb9960a044 488 }
donatien 0:2ccb9960a044 489
donatien 11:390362de8c3f 490 HTTPResult HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure
donatien 0:2ccb9960a044 491 {
donatien 0:2ccb9960a044 492 DBG("Trying to read between %d and %d bytes", minLen, maxLen);
donatien 0:2ccb9960a044 493 size_t readLen = 0;
donatien 12:89d09a6db00a 494
donatien 12:89d09a6db00a 495 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 496 {
donatien 12:89d09a6db00a 497 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 498 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 499 }
donatien 12:89d09a6db00a 500
donatien 7:4e39864f7b15 501 int ret;
donatien 7:4e39864f7b15 502 while(readLen < maxLen)
donatien 0:2ccb9960a044 503 {
donatien 7:4e39864f7b15 504 if(readLen < minLen)
donatien 0:2ccb9960a044 505 {
donatien 12:89d09a6db00a 506 DBG("Trying to read at most %d bytes [Blocking]", minLen - readLen);
donatien 13:be61104f4e91 507 m_sock.set_blocking(false, m_timeout);
donatien 12:89d09a6db00a 508 ret = m_sock.receive_all(buf + readLen, minLen - readLen);
donatien 0:2ccb9960a044 509 }
donatien 7:4e39864f7b15 510 else
donatien 7:4e39864f7b15 511 {
donatien 12:89d09a6db00a 512 DBG("Trying to read at most %d bytes [Not blocking]", maxLen - readLen);
donatien 13:be61104f4e91 513 m_sock.set_blocking(false, 0);
donatien 12:89d09a6db00a 514 ret = m_sock.receive(buf + readLen, maxLen - readLen);
donatien 7:4e39864f7b15 515 }
donatien 7:4e39864f7b15 516
donatien 0:2ccb9960a044 517 if( ret > 0)
donatien 0:2ccb9960a044 518 {
donatien 0:2ccb9960a044 519 readLen += ret;
donatien 0:2ccb9960a044 520 }
donatien 0:2ccb9960a044 521 else if( ret == 0 )
donatien 0:2ccb9960a044 522 {
donatien 7:4e39864f7b15 523 break;
donatien 7:4e39864f7b15 524 }
donatien 7:4e39864f7b15 525 else
donatien 7:4e39864f7b15 526 {
donatien 12:89d09a6db00a 527 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 528 {
donatien 12:89d09a6db00a 529 ERR("Connection error (recv returned %d)", ret);
donatien 12:89d09a6db00a 530 *pReadLen = readLen;
donatien 12:89d09a6db00a 531 return HTTP_CONN;
donatien 12:89d09a6db00a 532 }
donatien 12:89d09a6db00a 533 else
donatien 12:89d09a6db00a 534 {
donatien 12:89d09a6db00a 535 break;
donatien 12:89d09a6db00a 536 }
donatien 12:89d09a6db00a 537 }
donatien 12:89d09a6db00a 538
donatien 12:89d09a6db00a 539 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 540 {
donatien 12:89d09a6db00a 541 break;
donatien 7:4e39864f7b15 542 }
donatien 7:4e39864f7b15 543 }
donatien 7:4e39864f7b15 544 DBG("Read %d bytes", readLen);
donatien 7:4e39864f7b15 545 *pReadLen = readLen;
donatien 11:390362de8c3f 546 return HTTP_OK;
donatien 7:4e39864f7b15 547 }
donatien 7:4e39864f7b15 548
donatien 11:390362de8c3f 549 HTTPResult HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure
donatien 7:4e39864f7b15 550 {
donatien 7:4e39864f7b15 551 if(len == 0)
donatien 7:4e39864f7b15 552 {
donatien 7:4e39864f7b15 553 len = strlen(buf);
donatien 7:4e39864f7b15 554 }
donatien 7:4e39864f7b15 555 DBG("Trying to write %d bytes", len);
donatien 7:4e39864f7b15 556 size_t writtenLen = 0;
donatien 12:89d09a6db00a 557
donatien 12:89d09a6db00a 558 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 559 {
donatien 12:89d09a6db00a 560 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 561 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 562 }
donatien 7:4e39864f7b15 563
donatien 13:be61104f4e91 564 m_sock.set_blocking(false, m_timeout);
donatien 12:89d09a6db00a 565 int ret = m_sock.send_all(buf, len);
donatien 12:89d09a6db00a 566 if(ret > 0)
donatien 7:4e39864f7b15 567 {
donatien 12:89d09a6db00a 568 writtenLen += ret;
donatien 12:89d09a6db00a 569 }
donatien 12:89d09a6db00a 570 else if( ret == 0 )
donatien 12:89d09a6db00a 571 {
donatien 12:89d09a6db00a 572 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 573 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 574 }
donatien 12:89d09a6db00a 575 else
donatien 12:89d09a6db00a 576 {
donatien 12:89d09a6db00a 577 ERR("Connection error (send returned %d)", ret);
donatien 12:89d09a6db00a 578 return HTTP_CONN;
donatien 12:89d09a6db00a 579 }
donatien 7:4e39864f7b15 580
donatien 0:2ccb9960a044 581 DBG("Written %d bytes", writtenLen);
donatien 11:390362de8c3f 582 return HTTP_OK;
donatien 0:2ccb9960a044 583 }
donatien 0:2ccb9960a044 584
donatien 11:390362de8c3f 585 HTTPResult 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 586 {
donatien 0:2ccb9960a044 587 char* schemePtr = (char*) url;
donatien 0:2ccb9960a044 588 char* hostPtr = (char*) strstr(url, "://");
donatien 0:2ccb9960a044 589 if(hostPtr == NULL)
donatien 0:2ccb9960a044 590 {
donatien 0:2ccb9960a044 591 WARN("Could not find host");
donatien 11:390362de8c3f 592 return HTTP_PARSE; //URL is invalid
donatien 0:2ccb9960a044 593 }
donatien 0:2ccb9960a044 594
donatien 0:2ccb9960a044 595 if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 596 {
donatien 0:2ccb9960a044 597 WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1);
donatien 11:390362de8c3f 598 return HTTP_PARSE;
donatien 0:2ccb9960a044 599 }
donatien 0:2ccb9960a044 600 memcpy(scheme, schemePtr, hostPtr - schemePtr);
donatien 0:2ccb9960a044 601 scheme[hostPtr - schemePtr] = '\0';
donatien 0:2ccb9960a044 602
donatien 0:2ccb9960a044 603 hostPtr+=3;
donatien 0:2ccb9960a044 604
donatien 0:2ccb9960a044 605 size_t hostLen = 0;
donatien 0:2ccb9960a044 606
donatien 0:2ccb9960a044 607 char* portPtr = strchr(hostPtr, ':');
donatien 0:2ccb9960a044 608 if( portPtr != NULL )
donatien 0:2ccb9960a044 609 {
donatien 0:2ccb9960a044 610 hostLen = portPtr - hostPtr;
donatien 0:2ccb9960a044 611 portPtr++;
donatien 8:45c8da29a1cf 612 if( sscanf(portPtr, "%hu", port) != 1)
donatien 0:2ccb9960a044 613 {
donatien 0:2ccb9960a044 614 WARN("Could not find port");
donatien 11:390362de8c3f 615 return HTTP_PARSE;
donatien 0:2ccb9960a044 616 }
donatien 0:2ccb9960a044 617 }
donatien 0:2ccb9960a044 618 else
donatien 0:2ccb9960a044 619 {
donatien 0:2ccb9960a044 620 *port=0;
donatien 0:2ccb9960a044 621 }
donatien 0:2ccb9960a044 622 char* pathPtr = strchr(hostPtr, '/');
donatien 0:2ccb9960a044 623 if( hostLen == 0 )
donatien 0:2ccb9960a044 624 {
donatien 0:2ccb9960a044 625 hostLen = pathPtr - hostPtr;
donatien 0:2ccb9960a044 626 }
donatien 0:2ccb9960a044 627
donatien 0:2ccb9960a044 628 if( maxHostLen < hostLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 629 {
donatien 0:2ccb9960a044 630 WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1);
donatien 11:390362de8c3f 631 return HTTP_PARSE;
donatien 0:2ccb9960a044 632 }
donatien 0:2ccb9960a044 633 memcpy(host, hostPtr, hostLen);
donatien 0:2ccb9960a044 634 host[hostLen] = '\0';
donatien 0:2ccb9960a044 635
donatien 0:2ccb9960a044 636 size_t pathLen;
donatien 0:2ccb9960a044 637 char* fragmentPtr = strchr(hostPtr, '#');
donatien 0:2ccb9960a044 638 if(fragmentPtr != NULL)
donatien 0:2ccb9960a044 639 {
donatien 0:2ccb9960a044 640 pathLen = fragmentPtr - pathPtr;
donatien 0:2ccb9960a044 641 }
donatien 0:2ccb9960a044 642 else
donatien 0:2ccb9960a044 643 {
donatien 0:2ccb9960a044 644 pathLen = strlen(pathPtr);
donatien 0:2ccb9960a044 645 }
donatien 0:2ccb9960a044 646
donatien 0:2ccb9960a044 647 if( maxPathLen < pathLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 648 {
donatien 0:2ccb9960a044 649 WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1);
donatien 11:390362de8c3f 650 return HTTP_PARSE;
donatien 0:2ccb9960a044 651 }
donatien 0:2ccb9960a044 652 memcpy(path, pathPtr, pathLen);
donatien 0:2ccb9960a044 653 path[pathLen] = '\0';
donatien 0:2ccb9960a044 654
donatien 11:390362de8c3f 655 return HTTP_OK;
donatien 0:2ccb9960a044 656 }
kazushi2008 18:cf5d7427a9ec 657
kazushi2008 18:cf5d7427a9ec 658 void HTTPClient::createauth (const char *user, const char *pwd, char *buf, int len) {
kazushi2008 18:cf5d7427a9ec 659 char tmp[80];
kazushi2008 18:cf5d7427a9ec 660
kazushi2008 18:cf5d7427a9ec 661 strncpy(buf, "Authorization: Basic ", 21);//len);
kazushi2008 18:cf5d7427a9ec 662 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
kazushi2008 18:cf5d7427a9ec 663 base64enc(tmp, strlen(tmp), &buf[strlen(buf)], len - strlen(buf));
kazushi2008 18:cf5d7427a9ec 664 }
kazushi2008 18:cf5d7427a9ec 665
kazushi2008 18:cf5d7427a9ec 666 // Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
kazushi2008 18:cf5d7427a9ec 667 int HTTPClient::base64enc(const char *input, unsigned int length, char *output, int len) {
kazushi2008 18:cf5d7427a9ec 668 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
kazushi2008 18:cf5d7427a9ec 669 unsigned int c, c1, c2, c3;
kazushi2008 18:cf5d7427a9ec 670
kazushi2008 18:cf5d7427a9ec 671 if (len < ((((length-1)/3)+1)<<2)) return -1;
kazushi2008 18:cf5d7427a9ec 672 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
kazushi2008 18:cf5d7427a9ec 673 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
kazushi2008 18:cf5d7427a9ec 674 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
kazushi2008 18:cf5d7427a9ec 675 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
kazushi2008 18:cf5d7427a9ec 676
kazushi2008 18:cf5d7427a9ec 677 c = ((c1 & 0xFC) >> 2);
kazushi2008 18:cf5d7427a9ec 678 output[j+0] = base64[c];
kazushi2008 18:cf5d7427a9ec 679 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
kazushi2008 18:cf5d7427a9ec 680 output[j+1] = base64[c];
kazushi2008 18:cf5d7427a9ec 681 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
kazushi2008 18:cf5d7427a9ec 682 output[j+2] = (length>i+1)?base64[c]:'=';
kazushi2008 18:cf5d7427a9ec 683 c = (c3 & 0x3F);
kazushi2008 18:cf5d7427a9ec 684 output[j+3] = (length>i+2)?base64[c]:'=';
kazushi2008 18:cf5d7427a9ec 685 }
kazushi2008 18:cf5d7427a9ec 686 output[(((length-1)/3)+1)<<2] = '\0';
kazushi2008 18:cf5d7427a9ec 687 return 0;
kazushi2008 18:cf5d7427a9ec 688 }