Doug Anson / HTTPClient-basicAuth

Minor tweaks to support longer header key value pairs

Dependents:   Car_Bon_car_module

Fork of HTTPClient by David Smart

HTTPClient.cpp@19:bcbf0af9fac3, 2014-01-24 (annotated)

Committer:
vwochnik
Date:
Fri Jan 24 13:51:36 2014 +0000
Revision:
19:bcbf0af9fac3
Parent:
18:cf5d7427a9ec
Child:
20:4ea5255c1b04
Improve auth, add custom headers

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:2ccb9960a044 1 /* HTTPClient.cpp */
donatien 10:e1351de84c16 2 /* Copyright (C) 2012 mbed.org, MIT License
donatien 10:e1351de84c16 3 *
donatien 10:e1351de84c16 4 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
donatien 10:e1351de84c16 5 * and associated documentation files (the "Software"), to deal in the Software without restriction,
donatien 10:e1351de84c16 6 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
donatien 10:e1351de84c16 7 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
donatien 10:e1351de84c16 8 * furnished to do so, subject to the following conditions:
donatien 10:e1351de84c16 9 *
donatien 10:e1351de84c16 10 * The above copyright notice and this permission notice shall be included in all copies or
donatien 10:e1351de84c16 11 * substantial portions of the Software.
donatien 10:e1351de84c16 12 *
donatien 10:e1351de84c16 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
donatien 10:e1351de84c16 14 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
donatien 10:e1351de84c16 15 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
donatien 10:e1351de84c16 16 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
donatien 10:e1351de84c16 17 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
donatien 10:e1351de84c16 18 */
donatien 0:2ccb9960a044 19
donatien 7:4e39864f7b15 20 //Debug is disabled by default
donatien 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
donatien 0:2ccb9960a044 60 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
donatien 0:2ccb9960a044 61 {
donatien 0:2ccb9960a044 62 m_basicAuthUser = user;
donatien 0:2ccb9960a044 63 m_basicAuthPassword = password;
donatien 0:2ccb9960a044 64 }
vwochnik 19:bcbf0af9fac3 65
vwochnik 19:bcbf0af9fac3 66 void HTTPClient::customHeaders(const char **headers, size_t pairs)
vwochnik 19:bcbf0af9fac3 67 {
vwochnik 19:bcbf0af9fac3 68 m_customHeaders = headers;
vwochnik 19:bcbf0af9fac3 69 m_nCustomHeaders = pairs;
vwochnik 19:bcbf0af9fac3 70 }
vwochnik 19:bcbf0af9fac3 71
donatien 0:2ccb9960a044 72
donatien 12:89d09a6db00a 73 HTTPResult HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 74 {
donatien 0:2ccb9960a044 75 return connect(url, HTTP_GET, NULL, pDataIn, timeout);
donatien 0:2ccb9960a044 76 }
donatien 0:2ccb9960a044 77
donatien 12:89d09a6db00a 78 HTTPResult HTTPClient::get(const char* url, char* result, size_t maxResultLen, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 79 {
donatien 0:2ccb9960a044 80 HTTPText str(result, maxResultLen);
donatien 0:2ccb9960a044 81 return get(url, &str, timeout);
donatien 0:2ccb9960a044 82 }
donatien 0:2ccb9960a044 83
donatien 12:89d09a6db00a 84 HTTPResult HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 0:2ccb9960a044 85 {
donatien 0:2ccb9960a044 86 return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 0:2ccb9960a044 87 }
donatien 0:2ccb9960a044 88
donatien 16:1f743885e7de 89 HTTPResult HTTPClient::put(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 16:1f743885e7de 90 {
donatien 16:1f743885e7de 91 return connect(url, HTTP_PUT, (IHTTPDataOut*)&dataOut, pDataIn, timeout);
donatien 16:1f743885e7de 92 }
donatien 16:1f743885e7de 93
donatien 16:1f743885e7de 94 HTTPResult HTTPClient::del(const char* url, IHTTPDataIn* pDataIn, int timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking
donatien 16:1f743885e7de 95 {
donatien 16:1f743885e7de 96 return connect(url, HTTP_DELETE, NULL, pDataIn, timeout);
donatien 16:1f743885e7de 97 }
donatien 16:1f743885e7de 98
donatien 16:1f743885e7de 99
donatien 0:2ccb9960a044 100 int HTTPClient::getHTTPResponseCode()
donatien 0:2ccb9960a044 101 {
donatien 0:2ccb9960a044 102 return m_httpResponseCode;
donatien 0:2ccb9960a044 103 }
donatien 0:2ccb9960a044 104
donatien 5:791fc3dcb6c4 105 #define CHECK_CONN_ERR(ret) \
donatien 5:791fc3dcb6c4 106 do{ \
donatien 7:4e39864f7b15 107 if(ret) { \
donatien 7:4e39864f7b15 108 m_sock.close(); \
donatien 5:791fc3dcb6c4 109 ERR("Connection error (%d)", ret); \
donatien 11:390362de8c3f 110 return HTTP_CONN; \
donatien 5:791fc3dcb6c4 111 } \
donatien 5:791fc3dcb6c4 112 } while(0)
donatien 5:791fc3dcb6c4 113
donatien 5:791fc3dcb6c4 114 #define PRTCL_ERR() \
donatien 5:791fc3dcb6c4 115 do{ \
donatien 7:4e39864f7b15 116 m_sock.close(); \
donatien 5:791fc3dcb6c4 117 ERR("Protocol error"); \
donatien 11:390362de8c3f 118 return HTTP_PRTCL; \
donatien 5:791fc3dcb6c4 119 } while(0)
donatien 0:2ccb9960a044 120
donatien 12:89d09a6db00a 121 HTTPResult HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, int timeout) //Execute request
donatien 12:89d09a6db00a 122 {
donatien 0:2ccb9960a044 123 m_httpResponseCode = 0; //Invalidate code
donatien 0:2ccb9960a044 124 m_timeout = timeout;
donatien 16:1f743885e7de 125
donatien 16:1f743885e7de 126 pDataIn->writeReset();
donatien 16:1f743885e7de 127 if( pDataOut )
donatien 16:1f743885e7de 128 {
donatien 16:1f743885e7de 129 pDataOut->readReset();
donatien 16:1f743885e7de 130 }
donatien 0:2ccb9960a044 131
donatien 0:2ccb9960a044 132 char scheme[8];
donatien 0:2ccb9960a044 133 uint16_t port;
donatien 0:2ccb9960a044 134 char host[32];
donatien 0:2ccb9960a044 135 char path[64];
donatien 0:2ccb9960a044 136 //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?)
donatien 11:390362de8c3f 137 HTTPResult res = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path));
donatien 11:390362de8c3f 138 if(res != HTTP_OK)
donatien 0:2ccb9960a044 139 {
donatien 11:390362de8c3f 140 ERR("parseURL returned %d", res);
donatien 11:390362de8c3f 141 return res;
donatien 0:2ccb9960a044 142 }
donatien 0:2ccb9960a044 143
donatien 0:2ccb9960a044 144 if(port == 0) //TODO do handle HTTPS->443
donatien 0:2ccb9960a044 145 {
donatien 0:2ccb9960a044 146 port = 80;
donatien 0:2ccb9960a044 147 }
donatien 0:2ccb9960a044 148
donatien 0:2ccb9960a044 149 DBG("Scheme: %s", scheme);
donatien 0:2ccb9960a044 150 DBG("Host: %s", host);
donatien 0:2ccb9960a044 151 DBG("Port: %d", port);
donatien 0:2ccb9960a044 152 DBG("Path: %s", path);
donatien 0:2ccb9960a044 153
donatien 7:4e39864f7b15 154 //Connect
donatien 7:4e39864f7b15 155 DBG("Connecting socket to server");
donatien 11:390362de8c3f 156 int ret = m_sock.connect(host, port);
donatien 0:2ccb9960a044 157 if (ret < 0)
donatien 0:2ccb9960a044 158 {
donatien 7:4e39864f7b15 159 m_sock.close();
donatien 0:2ccb9960a044 160 ERR("Could not connect");
donatien 11:390362de8c3f 161 return HTTP_CONN;
donatien 0:2ccb9960a044 162 }
donatien 0:2ccb9960a044 163
donatien 0:2ccb9960a044 164 //Send request
donatien 0:2ccb9960a044 165 DBG("Sending request");
donatien 9:ff30cc189191 166 char buf[CHUNK_SIZE];
donatien 16:1f743885e7de 167 const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":(method==HTTP_PUT)?"PUT":(method==HTTP_DELETE)?"DELETE":"";
vwochnik 19:bcbf0af9fac3 168 snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request
donatien 9:ff30cc189191 169 ret = send(buf);
donatien 0:2ccb9960a044 170 if(ret)
donatien 0:2ccb9960a044 171 {
donatien 7:4e39864f7b15 172 m_sock.close();
donatien 0:2ccb9960a044 173 ERR("Could not write request");
donatien 11:390362de8c3f 174 return HTTP_CONN;
donatien 0:2ccb9960a044 175 }
vwochnik 19:bcbf0af9fac3 176
vwochnik 19:bcbf0af9fac3 177 // send authorization
vwochnik 19:bcbf0af9fac3 178 if ((!m_basicAuthUser) && (!m_basicAuthPass)) {
vwochnik 19:bcbf0af9fac3 179 strcpy(buf, "Authorization: ");
vwochnik 19:bcbf0af9fac3 180 createauth(m_basicAuthUser, m_basicAuthPass, buf+strlen(buf), sizeof(buf)-strlen(buf));
vwochnik 19:bcbf0af9fac3 181 strcat(buf, "\r\n");
vwochnik 19:bcbf0af9fac3 182
vwochnik 19:bcbf0af9fac3 183 ret = send(buf);
vwochnik 19:bcbf0af9fac3 184 if(ret)
vwochnik 19:bcbf0af9fac3 185 {
vwochnik 19:bcbf0af9fac3 186 m_sock.close();
vwochnik 19:bcbf0af9fac3 187 ERR("Could not write request");
vwochnik 19:bcbf0af9fac3 188 return HTTP_CONN;
vwochnik 19:bcbf0af9fac3 189 }
vwochnik 19:bcbf0af9fac3 190 }
donatien 0:2ccb9960a044 191
donatien 0:2ccb9960a044 192 //Send all headers
vwochnik 19:bcbf0af9fac3 193 for (size_t nh = 0; nh < m_nCustomHeaders; ++nh) {
vwochnik 19:bcbf0af9fac3 194 snprintf(buf, sizeof(buf), "%s: %s\r\n", m_customHeaders[nh], m_customHeaders[nh+1]);
vwochnik 19:bcbf0af9fac3 195 ret = send(buf);
vwochnik 19:bcbf0af9fac3 196 if(ret)
vwochnik 19:bcbf0af9fac3 197 {
vwochnik 19:bcbf0af9fac3 198 m_sock.close();
vwochnik 19:bcbf0af9fac3 199 ERR("Could not write request");
vwochnik 19:bcbf0af9fac3 200 return HTTP_CONN;
vwochnik 19:bcbf0af9fac3 201 }
vwochnik 19:bcbf0af9fac3 202 }
donatien 0:2ccb9960a044 203
donatien 0:2ccb9960a044 204 //Send default headers
donatien 0:2ccb9960a044 205 DBG("Sending headers");
donatien 16:1f743885e7de 206 if( pDataOut != NULL )
donatien 0:2ccb9960a044 207 {
donatien 0:2ccb9960a044 208 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 209 {
donatien 0:2ccb9960a044 210 ret = send("Transfer-Encoding: chunked\r\n");
donatien 5:791fc3dcb6c4 211 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 212 }
donatien 0:2ccb9960a044 213 else
donatien 0:2ccb9960a044 214 {
donatien 9:ff30cc189191 215 snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen());
donatien 9:ff30cc189191 216 ret = send(buf);
donatien 5:791fc3dcb6c4 217 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 218 }
donatien 0:2ccb9960a044 219 char type[48];
donatien 11:390362de8c3f 220 if( pDataOut->getDataType(type, 48) == HTTP_OK )
donatien 0:2ccb9960a044 221 {
donatien 9:ff30cc189191 222 snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type);
donatien 9:ff30cc189191 223 ret = send(buf);
donatien 5:791fc3dcb6c4 224 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 225 }
donatien 0:2ccb9960a044 226 }
donatien 9:ff30cc189191 227
donatien 0:2ccb9960a044 228 //Close headers
donatien 0:2ccb9960a044 229 DBG("Headers sent");
donatien 0:2ccb9960a044 230 ret = send("\r\n");
donatien 5:791fc3dcb6c4 231 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 232
donatien 4:c071b05ac026 233 size_t trfLen;
donatien 9:ff30cc189191 234
donatien 16:1f743885e7de 235 //Send data (if available)
donatien 16:1f743885e7de 236 if( pDataOut != NULL )
donatien 0:2ccb9960a044 237 {
donatien 0:2ccb9960a044 238 DBG("Sending data");
donatien 0:2ccb9960a044 239 while(true)
donatien 0:2ccb9960a044 240 {
donatien 0:2ccb9960a044 241 size_t writtenLen = 0;
donatien 0:2ccb9960a044 242 pDataOut->read(buf, CHUNK_SIZE, &trfLen);
donatien 0:2ccb9960a044 243 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 244 {
donatien 0:2ccb9960a044 245 //Write chunk header
donatien 9:ff30cc189191 246 char chunkHeader[16];
donatien 9:ff30cc189191 247 snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding
donatien 9:ff30cc189191 248 ret = send(chunkHeader);
donatien 5:791fc3dcb6c4 249 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 250 }
donatien 0:2ccb9960a044 251 else if( trfLen == 0 )
donatien 0:2ccb9960a044 252 {
donatien 0:2ccb9960a044 253 break;
donatien 0:2ccb9960a044 254 }
donatien 0:2ccb9960a044 255 if( trfLen != 0 )
donatien 0:2ccb9960a044 256 {
donatien 0:2ccb9960a044 257 ret = send(buf, trfLen);
donatien 5:791fc3dcb6c4 258 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 259 }
donatien 0:2ccb9960a044 260
donatien 0:2ccb9960a044 261 if( pDataOut->getIsChunked() )
donatien 0:2ccb9960a044 262 {
donatien 0:2ccb9960a044 263 ret = send("\r\n"); //Chunk-terminating CRLF
donatien 5:791fc3dcb6c4 264 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 265 }
donatien 0:2ccb9960a044 266 else
donatien 0:2ccb9960a044 267 {
donatien 0:2ccb9960a044 268 writtenLen += trfLen;
donatien 0:2ccb9960a044 269 if( writtenLen >= pDataOut->getDataLen() )
donatien 0:2ccb9960a044 270 {
donatien 0:2ccb9960a044 271 break;
donatien 0:2ccb9960a044 272 }
donatien 0:2ccb9960a044 273 }
donatien 0:2ccb9960a044 274
donatien 0:2ccb9960a044 275 if( trfLen == 0 )
donatien 0:2ccb9960a044 276 {
donatien 0:2ccb9960a044 277 break;
donatien 0:2ccb9960a044 278 }
donatien 0:2ccb9960a044 279 }
donatien 0:2ccb9960a044 280
donatien 0:2ccb9960a044 281 }
donatien 9:ff30cc189191 282
donatien 0:2ccb9960a044 283 //Receive response
donatien 0:2ccb9960a044 284 DBG("Receiving response");
donatien 4:c071b05ac026 285 ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes
donatien 5:791fc3dcb6c4 286 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 287
donatien 0:2ccb9960a044 288 buf[trfLen] = '\0';
donatien 0:2ccb9960a044 289
donatien 0:2ccb9960a044 290 char* crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 291 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 292 {
donatien 5:791fc3dcb6c4 293 PRTCL_ERR();
donatien 0:2ccb9960a044 294 }
donatien 0:2ccb9960a044 295
donatien 4:c071b05ac026 296 int crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 297 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 298
donatien 0:2ccb9960a044 299 //Parse HTTP response
donatien 0:2ccb9960a044 300 if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
donatien 0:2ccb9960a044 301 {
donatien 0:2ccb9960a044 302 //Cannot match string, error
donatien 0:2ccb9960a044 303 ERR("Not a correct HTTP answer : %s\n", buf);
donatien 5:791fc3dcb6c4 304 PRTCL_ERR();
donatien 0:2ccb9960a044 305 }
donatien 0:2ccb9960a044 306
donatien 16:1f743885e7de 307 if( (m_httpResponseCode < 200) || (m_httpResponseCode >= 300) )
donatien 0:2ccb9960a044 308 {
donatien 16:1f743885e7de 309 //Did not return a 2xx code; TODO fetch headers/(&data?) anyway and implement a mean of writing/reading headers
donatien 0:2ccb9960a044 310 WARN("Response code %d", m_httpResponseCode);
donatien 5:791fc3dcb6c4 311 PRTCL_ERR();
donatien 0:2ccb9960a044 312 }
donatien 0:2ccb9960a044 313
donatien 0:2ccb9960a044 314 DBG("Reading headers");
donatien 0:2ccb9960a044 315
donatien 4:c071b05ac026 316 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 317 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 318
donatien 4:c071b05ac026 319 size_t recvContentLength = 0;
donatien 4:c071b05ac026 320 bool recvChunked = false;
donatien 0:2ccb9960a044 321 //Now get headers
donatien 0:2ccb9960a044 322 while( true )
donatien 0:2ccb9960a044 323 {
donatien 0:2ccb9960a044 324 crlfPtr = strstr(buf, "\r\n");
donatien 0:2ccb9960a044 325 if(crlfPtr == NULL)
donatien 0:2ccb9960a044 326 {
donatien 4:c071b05ac026 327 if( trfLen < CHUNK_SIZE - 1 )
donatien 0:2ccb9960a044 328 {
donatien 0:2ccb9960a044 329 size_t newTrfLen;
donatien 0:2ccb9960a044 330 ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 0:2ccb9960a044 331 trfLen += newTrfLen;
donatien 0:2ccb9960a044 332 buf[trfLen] = '\0';
donatien 4:c071b05ac026 333 DBG("Read %d chars; In buf: [%s]", newTrfLen, buf);
donatien 5:791fc3dcb6c4 334 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 335 continue;
donatien 0:2ccb9960a044 336 }
donatien 0:2ccb9960a044 337 else
donatien 0:2ccb9960a044 338 {
donatien 5:791fc3dcb6c4 339 PRTCL_ERR();
donatien 0:2ccb9960a044 340 }
donatien 0:2ccb9960a044 341 }
donatien 0:2ccb9960a044 342
donatien 0:2ccb9960a044 343 crlfPos = crlfPtr - buf;
donatien 0:2ccb9960a044 344
donatien 0:2ccb9960a044 345 if(crlfPos == 0) //End of headers
donatien 0:2ccb9960a044 346 {
donatien 0:2ccb9960a044 347 DBG("Headers read");
donatien 4:c071b05ac026 348 memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 349 trfLen -= 2;
donatien 0:2ccb9960a044 350 break;
donatien 0:2ccb9960a044 351 }
donatien 0:2ccb9960a044 352
donatien 0:2ccb9960a044 353 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 354
donatien 4:c071b05ac026 355 char key[32];
donatien 4:c071b05ac026 356 char value[32];
donatien 0:2ccb9960a044 357
donatien 4:c071b05ac026 358 key[31] = '\0';
donatien 4:c071b05ac026 359 value[31] = '\0';
donatien 4:c071b05ac026 360
donatien 4:c071b05ac026 361 int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value);
donatien 0:2ccb9960a044 362 if ( n == 2 )
donatien 0:2ccb9960a044 363 {
donatien 0:2ccb9960a044 364 DBG("Read header : %s: %s\n", key, value);
donatien 0:2ccb9960a044 365 if( !strcmp(key, "Content-Length") )
donatien 0:2ccb9960a044 366 {
donatien 0:2ccb9960a044 367 sscanf(value, "%d", &recvContentLength);
donatien 0:2ccb9960a044 368 pDataIn->setDataLen(recvContentLength);
donatien 0:2ccb9960a044 369 }
donatien 0:2ccb9960a044 370 else if( !strcmp(key, "Transfer-Encoding") )
donatien 0:2ccb9960a044 371 {
donatien 0:2ccb9960a044 372 if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") )
donatien 0:2ccb9960a044 373 {
donatien 0:2ccb9960a044 374 recvChunked = true;
donatien 0:2ccb9960a044 375 pDataIn->setIsChunked(true);
donatien 0:2ccb9960a044 376 }
donatien 0:2ccb9960a044 377 }
donatien 0:2ccb9960a044 378 else if( !strcmp(key, "Content-Type") )
donatien 0:2ccb9960a044 379 {
donatien 0:2ccb9960a044 380 pDataIn->setDataType(value);
donatien 0:2ccb9960a044 381 }
donatien 0:2ccb9960a044 382
donatien 4:c071b05ac026 383 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well
donatien 0:2ccb9960a044 384 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 385
donatien 0:2ccb9960a044 386 }
donatien 0:2ccb9960a044 387 else
donatien 0:2ccb9960a044 388 {
donatien 0:2ccb9960a044 389 ERR("Could not parse header");
donatien 5:791fc3dcb6c4 390 PRTCL_ERR();
donatien 0:2ccb9960a044 391 }
donatien 0:2ccb9960a044 392
donatien 0:2ccb9960a044 393 }
donatien 0:2ccb9960a044 394
donatien 0:2ccb9960a044 395 //Receive data
donatien 0:2ccb9960a044 396 DBG("Receiving data");
donatien 0:2ccb9960a044 397 while(true)
donatien 0:2ccb9960a044 398 {
donatien 0:2ccb9960a044 399 size_t readLen = 0;
donatien 0:2ccb9960a044 400
donatien 0:2ccb9960a044 401 if( recvChunked )
donatien 0:2ccb9960a044 402 {
donatien 0:2ccb9960a044 403 //Read chunk header
donatien 14:2744e0c0e527 404 bool foundCrlf;
donatien 14:2744e0c0e527 405 do
donatien 0:2ccb9960a044 406 {
donatien 14:2744e0c0e527 407 foundCrlf = false;
donatien 14:2744e0c0e527 408 crlfPos=0;
donatien 14:2744e0c0e527 409 buf[trfLen]=0;
donatien 14:2744e0c0e527 410 if(trfLen >= 2)
donatien 0:2ccb9960a044 411 {
donatien 14:2744e0c0e527 412 for(; crlfPos < trfLen - 2; crlfPos++)
donatien 14:2744e0c0e527 413 {
donatien 14:2744e0c0e527 414 if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' )
donatien 14:2744e0c0e527 415 {
donatien 14:2744e0c0e527 416 foundCrlf = true;
donatien 14:2744e0c0e527 417 break;
donatien 14:2744e0c0e527 418 }
donatien 14:2744e0c0e527 419 }
donatien 0:2ccb9960a044 420 }
donatien 14:2744e0c0e527 421 if(!foundCrlf) //Try to read more
donatien 0:2ccb9960a044 422 {
donatien 14:2744e0c0e527 423 if( trfLen < CHUNK_SIZE )
donatien 14:2744e0c0e527 424 {
donatien 14:2744e0c0e527 425 size_t newTrfLen;
donatien 14:2744e0c0e527 426 ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 14:2744e0c0e527 427 trfLen += newTrfLen;
donatien 14:2744e0c0e527 428 CHECK_CONN_ERR(ret);
donatien 14:2744e0c0e527 429 continue;
donatien 14:2744e0c0e527 430 }
donatien 14:2744e0c0e527 431 else
donatien 14:2744e0c0e527 432 {
donatien 14:2744e0c0e527 433 PRTCL_ERR();
donatien 14:2744e0c0e527 434 }
donatien 0:2ccb9960a044 435 }
donatien 14:2744e0c0e527 436 } while(!foundCrlf);
donatien 0:2ccb9960a044 437 buf[crlfPos] = '\0';
donatien 0:2ccb9960a044 438 int n = sscanf(buf, "%x", &readLen);
donatien 0:2ccb9960a044 439 if(n!=1)
donatien 0:2ccb9960a044 440 {
donatien 15:5ad07f90e895 441 ERR("Could not read chunk length");
donatien 5:791fc3dcb6c4 442 PRTCL_ERR();
donatien 0:2ccb9960a044 443 }
donatien 0:2ccb9960a044 444
donatien 4:c071b05ac026 445 memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more
donatien 0:2ccb9960a044 446 trfLen -= (crlfPos + 2);
donatien 0:2ccb9960a044 447
donatien 0:2ccb9960a044 448 if( readLen == 0 )
donatien 0:2ccb9960a044 449 {
donatien 0:2ccb9960a044 450 //Last chunk
donatien 0:2ccb9960a044 451 break;
donatien 0:2ccb9960a044 452 }
donatien 0:2ccb9960a044 453 }
donatien 0:2ccb9960a044 454 else
donatien 0:2ccb9960a044 455 {
donatien 0:2ccb9960a044 456 readLen = recvContentLength;
donatien 0:2ccb9960a044 457 }
donatien 0:2ccb9960a044 458
donatien 0:2ccb9960a044 459 DBG("Retrieving %d bytes", readLen);
donatien 0:2ccb9960a044 460
donatien 0:2ccb9960a044 461 do
donatien 0:2ccb9960a044 462 {
donatien 0:2ccb9960a044 463 pDataIn->write(buf, MIN(trfLen, readLen));
donatien 0:2ccb9960a044 464 if( trfLen > readLen )
donatien 0:2ccb9960a044 465 {
donatien 0:2ccb9960a044 466 memmove(buf, &buf[readLen], trfLen - readLen);
donatien 0:2ccb9960a044 467 trfLen -= readLen;
donatien 0:2ccb9960a044 468 readLen = 0;
donatien 0:2ccb9960a044 469 }
donatien 0:2ccb9960a044 470 else
donatien 0:2ccb9960a044 471 {
donatien 0:2ccb9960a044 472 readLen -= trfLen;
donatien 0:2ccb9960a044 473 }
donatien 0:2ccb9960a044 474
donatien 0:2ccb9960a044 475 if(readLen)
donatien 0:2ccb9960a044 476 {
donatien 0:2ccb9960a044 477 ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen);
donatien 5:791fc3dcb6c4 478 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 479 }
donatien 0:2ccb9960a044 480 } while(readLen);
donatien 0:2ccb9960a044 481
donatien 0:2ccb9960a044 482 if( recvChunked )
donatien 0:2ccb9960a044 483 {
donatien 0:2ccb9960a044 484 if(trfLen < 2)
donatien 0:2ccb9960a044 485 {
donatien 0:2ccb9960a044 486 size_t newTrfLen;
donatien 0:2ccb9960a044 487 //Read missing chars to find end of chunk
donatien 14:2744e0c0e527 488 ret = recv(buf + trfLen, 2 - trfLen, CHUNK_SIZE - trfLen - 1, &newTrfLen);
donatien 5:791fc3dcb6c4 489 CHECK_CONN_ERR(ret);
donatien 0:2ccb9960a044 490 trfLen += newTrfLen;
donatien 0:2ccb9960a044 491 }
donatien 0:2ccb9960a044 492 if( (buf[0] != '\r') || (buf[1] != '\n') )
donatien 0:2ccb9960a044 493 {
donatien 0:2ccb9960a044 494 ERR("Format error");
donatien 5:791fc3dcb6c4 495 PRTCL_ERR();
donatien 0:2ccb9960a044 496 }
donatien 0:2ccb9960a044 497 memmove(buf, &buf[2], trfLen - 2);
donatien 0:2ccb9960a044 498 trfLen -= 2;
donatien 0:2ccb9960a044 499 }
donatien 0:2ccb9960a044 500 else
donatien 0:2ccb9960a044 501 {
donatien 0:2ccb9960a044 502 break;
donatien 0:2ccb9960a044 503 }
donatien 0:2ccb9960a044 504
donatien 0:2ccb9960a044 505 }
donatien 0:2ccb9960a044 506
donatien 7:4e39864f7b15 507 m_sock.close();
donatien 0:2ccb9960a044 508 DBG("Completed HTTP transaction");
donatien 0:2ccb9960a044 509
donatien 11:390362de8c3f 510 return HTTP_OK;
donatien 0:2ccb9960a044 511 }
donatien 0:2ccb9960a044 512
donatien 11:390362de8c3f 513 HTTPResult HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure
donatien 0:2ccb9960a044 514 {
donatien 0:2ccb9960a044 515 DBG("Trying to read between %d and %d bytes", minLen, maxLen);
donatien 0:2ccb9960a044 516 size_t readLen = 0;
donatien 12:89d09a6db00a 517
donatien 12:89d09a6db00a 518 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 519 {
donatien 12:89d09a6db00a 520 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 521 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 522 }
donatien 12:89d09a6db00a 523
donatien 7:4e39864f7b15 524 int ret;
donatien 7:4e39864f7b15 525 while(readLen < maxLen)
donatien 0:2ccb9960a044 526 {
donatien 7:4e39864f7b15 527 if(readLen < minLen)
donatien 0:2ccb9960a044 528 {
donatien 12:89d09a6db00a 529 DBG("Trying to read at most %d bytes [Blocking]", minLen - readLen);
donatien 13:be61104f4e91 530 m_sock.set_blocking(false, m_timeout);
donatien 12:89d09a6db00a 531 ret = m_sock.receive_all(buf + readLen, minLen - readLen);
donatien 0:2ccb9960a044 532 }
donatien 7:4e39864f7b15 533 else
donatien 7:4e39864f7b15 534 {
donatien 12:89d09a6db00a 535 DBG("Trying to read at most %d bytes [Not blocking]", maxLen - readLen);
donatien 13:be61104f4e91 536 m_sock.set_blocking(false, 0);
donatien 12:89d09a6db00a 537 ret = m_sock.receive(buf + readLen, maxLen - readLen);
donatien 7:4e39864f7b15 538 }
donatien 7:4e39864f7b15 539
donatien 0:2ccb9960a044 540 if( ret > 0)
donatien 0:2ccb9960a044 541 {
donatien 0:2ccb9960a044 542 readLen += ret;
donatien 0:2ccb9960a044 543 }
donatien 0:2ccb9960a044 544 else if( ret == 0 )
donatien 0:2ccb9960a044 545 {
donatien 7:4e39864f7b15 546 break;
donatien 7:4e39864f7b15 547 }
donatien 7:4e39864f7b15 548 else
donatien 7:4e39864f7b15 549 {
donatien 12:89d09a6db00a 550 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 551 {
donatien 12:89d09a6db00a 552 ERR("Connection error (recv returned %d)", ret);
donatien 12:89d09a6db00a 553 *pReadLen = readLen;
donatien 12:89d09a6db00a 554 return HTTP_CONN;
donatien 12:89d09a6db00a 555 }
donatien 12:89d09a6db00a 556 else
donatien 12:89d09a6db00a 557 {
donatien 12:89d09a6db00a 558 break;
donatien 12:89d09a6db00a 559 }
donatien 12:89d09a6db00a 560 }
donatien 12:89d09a6db00a 561
donatien 12:89d09a6db00a 562 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 563 {
donatien 12:89d09a6db00a 564 break;
donatien 7:4e39864f7b15 565 }
donatien 7:4e39864f7b15 566 }
donatien 7:4e39864f7b15 567 DBG("Read %d bytes", readLen);
donatien 7:4e39864f7b15 568 *pReadLen = readLen;
donatien 11:390362de8c3f 569 return HTTP_OK;
donatien 7:4e39864f7b15 570 }
donatien 7:4e39864f7b15 571
donatien 11:390362de8c3f 572 HTTPResult HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure
donatien 7:4e39864f7b15 573 {
donatien 7:4e39864f7b15 574 if(len == 0)
donatien 7:4e39864f7b15 575 {
donatien 7:4e39864f7b15 576 len = strlen(buf);
donatien 7:4e39864f7b15 577 }
donatien 7:4e39864f7b15 578 DBG("Trying to write %d bytes", len);
donatien 7:4e39864f7b15 579 size_t writtenLen = 0;
donatien 12:89d09a6db00a 580
donatien 12:89d09a6db00a 581 if(!m_sock.is_connected())
donatien 12:89d09a6db00a 582 {
donatien 12:89d09a6db00a 583 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 584 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 585 }
donatien 7:4e39864f7b15 586
donatien 13:be61104f4e91 587 m_sock.set_blocking(false, m_timeout);
donatien 12:89d09a6db00a 588 int ret = m_sock.send_all(buf, len);
donatien 12:89d09a6db00a 589 if(ret > 0)
donatien 7:4e39864f7b15 590 {
donatien 12:89d09a6db00a 591 writtenLen += ret;
donatien 12:89d09a6db00a 592 }
donatien 12:89d09a6db00a 593 else if( ret == 0 )
donatien 12:89d09a6db00a 594 {
donatien 12:89d09a6db00a 595 WARN("Connection was closed by server");
donatien 12:89d09a6db00a 596 return HTTP_CLOSED; //Connection was closed by server
donatien 12:89d09a6db00a 597 }
donatien 12:89d09a6db00a 598 else
donatien 12:89d09a6db00a 599 {
donatien 12:89d09a6db00a 600 ERR("Connection error (send returned %d)", ret);
donatien 12:89d09a6db00a 601 return HTTP_CONN;
donatien 12:89d09a6db00a 602 }
donatien 7:4e39864f7b15 603
donatien 0:2ccb9960a044 604 DBG("Written %d bytes", writtenLen);
donatien 11:390362de8c3f 605 return HTTP_OK;
donatien 0:2ccb9960a044 606 }
donatien 0:2ccb9960a044 607
donatien 11:390362de8c3f 608 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 609 {
donatien 0:2ccb9960a044 610 char* schemePtr = (char*) url;
donatien 0:2ccb9960a044 611 char* hostPtr = (char*) strstr(url, "://");
donatien 0:2ccb9960a044 612 if(hostPtr == NULL)
donatien 0:2ccb9960a044 613 {
donatien 0:2ccb9960a044 614 WARN("Could not find host");
donatien 11:390362de8c3f 615 return HTTP_PARSE; //URL is invalid
donatien 0:2ccb9960a044 616 }
donatien 0:2ccb9960a044 617
donatien 0:2ccb9960a044 618 if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 619 {
donatien 0:2ccb9960a044 620 WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1);
donatien 11:390362de8c3f 621 return HTTP_PARSE;
donatien 0:2ccb9960a044 622 }
donatien 0:2ccb9960a044 623 memcpy(scheme, schemePtr, hostPtr - schemePtr);
donatien 0:2ccb9960a044 624 scheme[hostPtr - schemePtr] = '\0';
donatien 0:2ccb9960a044 625
donatien 0:2ccb9960a044 626 hostPtr+=3;
donatien 0:2ccb9960a044 627
donatien 0:2ccb9960a044 628 size_t hostLen = 0;
donatien 0:2ccb9960a044 629
donatien 0:2ccb9960a044 630 char* portPtr = strchr(hostPtr, ':');
donatien 0:2ccb9960a044 631 if( portPtr != NULL )
donatien 0:2ccb9960a044 632 {
donatien 0:2ccb9960a044 633 hostLen = portPtr - hostPtr;
donatien 0:2ccb9960a044 634 portPtr++;
donatien 8:45c8da29a1cf 635 if( sscanf(portPtr, "%hu", port) != 1)
donatien 0:2ccb9960a044 636 {
donatien 0:2ccb9960a044 637 WARN("Could not find port");
donatien 11:390362de8c3f 638 return HTTP_PARSE;
donatien 0:2ccb9960a044 639 }
donatien 0:2ccb9960a044 640 }
donatien 0:2ccb9960a044 641 else
donatien 0:2ccb9960a044 642 {
donatien 0:2ccb9960a044 643 *port=0;
donatien 0:2ccb9960a044 644 }
donatien 0:2ccb9960a044 645 char* pathPtr = strchr(hostPtr, '/');
donatien 0:2ccb9960a044 646 if( hostLen == 0 )
donatien 0:2ccb9960a044 647 {
donatien 0:2ccb9960a044 648 hostLen = pathPtr - hostPtr;
donatien 0:2ccb9960a044 649 }
donatien 0:2ccb9960a044 650
donatien 0:2ccb9960a044 651 if( maxHostLen < hostLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 652 {
donatien 0:2ccb9960a044 653 WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1);
donatien 11:390362de8c3f 654 return HTTP_PARSE;
donatien 0:2ccb9960a044 655 }
donatien 0:2ccb9960a044 656 memcpy(host, hostPtr, hostLen);
donatien 0:2ccb9960a044 657 host[hostLen] = '\0';
donatien 0:2ccb9960a044 658
donatien 0:2ccb9960a044 659 size_t pathLen;
donatien 0:2ccb9960a044 660 char* fragmentPtr = strchr(hostPtr, '#');
donatien 0:2ccb9960a044 661 if(fragmentPtr != NULL)
donatien 0:2ccb9960a044 662 {
donatien 0:2ccb9960a044 663 pathLen = fragmentPtr - pathPtr;
donatien 0:2ccb9960a044 664 }
donatien 0:2ccb9960a044 665 else
donatien 0:2ccb9960a044 666 {
donatien 0:2ccb9960a044 667 pathLen = strlen(pathPtr);
donatien 0:2ccb9960a044 668 }
donatien 0:2ccb9960a044 669
donatien 0:2ccb9960a044 670 if( maxPathLen < pathLen + 1 ) //including NULL-terminating char
donatien 0:2ccb9960a044 671 {
donatien 0:2ccb9960a044 672 WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1);
donatien 11:390362de8c3f 673 return HTTP_PARSE;
donatien 0:2ccb9960a044 674 }
donatien 0:2ccb9960a044 675 memcpy(path, pathPtr, pathLen);
donatien 0:2ccb9960a044 676 path[pathLen] = '\0';
donatien 0:2ccb9960a044 677
donatien 11:390362de8c3f 678 return HTTP_OK;
donatien 0:2ccb9960a044 679 }
kazushi2008 18:cf5d7427a9ec 680
kazushi2008 18:cf5d7427a9ec 681 void HTTPClient::createauth (const char *user, const char *pwd, char *buf, int len) {
kazushi2008 18:cf5d7427a9ec 682 char tmp[80];
kazushi2008 18:cf5d7427a9ec 683
kazushi2008 18:cf5d7427a9ec 684 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
kazushi2008 18:cf5d7427a9ec 685 base64enc(tmp, strlen(tmp), &buf[strlen(buf)], len - strlen(buf));
kazushi2008 18:cf5d7427a9ec 686 }
kazushi2008 18:cf5d7427a9ec 687
kazushi2008 18:cf5d7427a9ec 688 // Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
kazushi2008 18:cf5d7427a9ec 689 int HTTPClient::base64enc(const char *input, unsigned int length, char *output, int len) {
kazushi2008 18:cf5d7427a9ec 690 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
kazushi2008 18:cf5d7427a9ec 691 unsigned int c, c1, c2, c3;
kazushi2008 18:cf5d7427a9ec 692
kazushi2008 18:cf5d7427a9ec 693 if (len < ((((length-1)/3)+1)<<2)) return -1;
kazushi2008 18:cf5d7427a9ec 694 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
kazushi2008 18:cf5d7427a9ec 695 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
kazushi2008 18:cf5d7427a9ec 696 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
kazushi2008 18:cf5d7427a9ec 697 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
kazushi2008 18:cf5d7427a9ec 698
kazushi2008 18:cf5d7427a9ec 699 c = ((c1 & 0xFC) >> 2);
kazushi2008 18:cf5d7427a9ec 700 output[j+0] = base64[c];
kazushi2008 18:cf5d7427a9ec 701 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
kazushi2008 18:cf5d7427a9ec 702 output[j+1] = base64[c];
kazushi2008 18:cf5d7427a9ec 703 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
kazushi2008 18:cf5d7427a9ec 704 output[j+2] = (length>i+1)?base64[c]:'=';
kazushi2008 18:cf5d7427a9ec 705 c = (c3 & 0x3F);
kazushi2008 18:cf5d7427a9ec 706 output[j+3] = (length>i+2)?base64[c]:'=';
kazushi2008 18:cf5d7427a9ec 707 }
kazushi2008 18:cf5d7427a9ec 708 output[(((length-1)/3)+1)<<2] = '\0';
kazushi2008 18:cf5d7427a9ec 709 return 0;
kazushi2008 18:cf5d7427a9ec 710 }