Leest de waarde van een sensor binnen een maakt deze beschikbaar via internet

Dependencies:   NTPClient_NetServices mbed

Committer:
hendrikvincent
Date:
Mon Dec 02 09:01:23 2013 +0000
Revision:
0:05ccbd4f84f1
eerste programma;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hendrikvincent 0:05ccbd4f84f1 1
hendrikvincent 0:05ccbd4f84f1 2 /*
hendrikvincent 0:05ccbd4f84f1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hendrikvincent 0:05ccbd4f84f1 4
hendrikvincent 0:05ccbd4f84f1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hendrikvincent 0:05ccbd4f84f1 6 of this software and associated documentation files (the "Software"), to deal
hendrikvincent 0:05ccbd4f84f1 7 in the Software without restriction, including without limitation the rights
hendrikvincent 0:05ccbd4f84f1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hendrikvincent 0:05ccbd4f84f1 9 copies of the Software, and to permit persons to whom the Software is
hendrikvincent 0:05ccbd4f84f1 10 furnished to do so, subject to the following conditions:
hendrikvincent 0:05ccbd4f84f1 11
hendrikvincent 0:05ccbd4f84f1 12 The above copyright notice and this permission notice shall be included in
hendrikvincent 0:05ccbd4f84f1 13 all copies or substantial portions of the Software.
hendrikvincent 0:05ccbd4f84f1 14
hendrikvincent 0:05ccbd4f84f1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hendrikvincent 0:05ccbd4f84f1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hendrikvincent 0:05ccbd4f84f1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hendrikvincent 0:05ccbd4f84f1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hendrikvincent 0:05ccbd4f84f1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hendrikvincent 0:05ccbd4f84f1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hendrikvincent 0:05ccbd4f84f1 21 THE SOFTWARE.
hendrikvincent 0:05ccbd4f84f1 22 */
hendrikvincent 0:05ccbd4f84f1 23
hendrikvincent 0:05ccbd4f84f1 24 #include "core/netservice.h"
hendrikvincent 0:05ccbd4f84f1 25 #include "HTTPClient.h"
hendrikvincent 0:05ccbd4f84f1 26 #include "../util/base64.h"
hendrikvincent 0:05ccbd4f84f1 27 #include "../util/url.h"
hendrikvincent 0:05ccbd4f84f1 28
hendrikvincent 0:05ccbd4f84f1 29 //#define __DEBUG
hendrikvincent 0:05ccbd4f84f1 30 #include "dbg/dbg.h"
hendrikvincent 0:05ccbd4f84f1 31
hendrikvincent 0:05ccbd4f84f1 32 #define HTTP_REQUEST_TIMEOUT 30000//15000
hendrikvincent 0:05ccbd4f84f1 33 #define HTTP_PORT 80
hendrikvincent 0:05ccbd4f84f1 34
hendrikvincent 0:05ccbd4f84f1 35 #define CHUNK_SIZE 256
hendrikvincent 0:05ccbd4f84f1 36
hendrikvincent 0:05ccbd4f84f1 37 HTTPClient::HTTPClient() : NetService(false) /*Not owned by the pool*/, m_meth(HTTP_GET), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL),
hendrikvincent 0:05ccbd4f84f1 38 m_watchdog(), m_timeout(0), m_pDnsReq(NULL), m_server(), m_path(),
hendrikvincent 0:05ccbd4f84f1 39 m_closed(true), m_state(HTTP_CLOSED),
hendrikvincent 0:05ccbd4f84f1 40 m_pDataOut(NULL), m_pDataIn(NULL), m_dataChunked(false), m_dataPos(0), m_dataLen(0), m_httpResponseCode(0), m_blockingResult(HTTP_PROCESSING)
hendrikvincent 0:05ccbd4f84f1 41
hendrikvincent 0:05ccbd4f84f1 42 {
hendrikvincent 0:05ccbd4f84f1 43 setTimeout(HTTP_REQUEST_TIMEOUT);
hendrikvincent 0:05ccbd4f84f1 44 m_buf = new char[CHUNK_SIZE];
hendrikvincent 0:05ccbd4f84f1 45 DBG("New HTTPClient %p\n",this);
hendrikvincent 0:05ccbd4f84f1 46 }
hendrikvincent 0:05ccbd4f84f1 47
hendrikvincent 0:05ccbd4f84f1 48 HTTPClient::~HTTPClient()
hendrikvincent 0:05ccbd4f84f1 49 {
hendrikvincent 0:05ccbd4f84f1 50 close();
hendrikvincent 0:05ccbd4f84f1 51 delete[] m_buf;
hendrikvincent 0:05ccbd4f84f1 52 }
hendrikvincent 0:05ccbd4f84f1 53
hendrikvincent 0:05ccbd4f84f1 54 void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification
hendrikvincent 0:05ccbd4f84f1 55 {
hendrikvincent 0:05ccbd4f84f1 56 if(user==NULL)
hendrikvincent 0:05ccbd4f84f1 57 {
hendrikvincent 0:05ccbd4f84f1 58 m_reqHeaders.erase("Authorization"); //Remove auth str
hendrikvincent 0:05ccbd4f84f1 59 return;
hendrikvincent 0:05ccbd4f84f1 60 }
hendrikvincent 0:05ccbd4f84f1 61 string auth = "Basic ";
hendrikvincent 0:05ccbd4f84f1 62 string decStr = user;
hendrikvincent 0:05ccbd4f84f1 63 decStr += ":";
hendrikvincent 0:05ccbd4f84f1 64 decStr += password;
hendrikvincent 0:05ccbd4f84f1 65 auth.append( Base64::encode(decStr) );
hendrikvincent 0:05ccbd4f84f1 66 DBG("Auth str is %s\n", auth.c_str());
hendrikvincent 0:05ccbd4f84f1 67 m_reqHeaders["Authorization"] = auth;
hendrikvincent 0:05ccbd4f84f1 68 }
hendrikvincent 0:05ccbd4f84f1 69
hendrikvincent 0:05ccbd4f84f1 70 //High Level setup functions
hendrikvincent 0:05ccbd4f84f1 71 HTTPResult HTTPClient::get(const char* uri, HTTPData* pDataIn) //Blocking
hendrikvincent 0:05ccbd4f84f1 72 {
hendrikvincent 0:05ccbd4f84f1 73 doGet(uri, pDataIn);
hendrikvincent 0:05ccbd4f84f1 74 return blockingProcess();
hendrikvincent 0:05ccbd4f84f1 75 }
hendrikvincent 0:05ccbd4f84f1 76
hendrikvincent 0:05ccbd4f84f1 77 HTTPResult HTTPClient::get(const char* uri, HTTPData* pDataIn, void (*pMethod)(HTTPResult)) //Non blocking
hendrikvincent 0:05ccbd4f84f1 78 {
hendrikvincent 0:05ccbd4f84f1 79 setOnResult(pMethod);
hendrikvincent 0:05ccbd4f84f1 80 doGet(uri, pDataIn);
hendrikvincent 0:05ccbd4f84f1 81 return HTTP_PROCESSING;
hendrikvincent 0:05ccbd4f84f1 82 }
hendrikvincent 0:05ccbd4f84f1 83
hendrikvincent 0:05ccbd4f84f1 84 #if 0 //For info only
hendrikvincent 0:05ccbd4f84f1 85 template<class T>
hendrikvincent 0:05ccbd4f84f1 86 HTTPResult HTTPClient::get(const char* uri, HTTPData* pDataIn, T* pItem, void (T::*pMethod)(HTTPResult)) //Non blocking
hendrikvincent 0:05ccbd4f84f1 87 {
hendrikvincent 0:05ccbd4f84f1 88 setOnResult(pItem, pMethod);
hendrikvincent 0:05ccbd4f84f1 89 doGet(uri, pDataIn);
hendrikvincent 0:05ccbd4f84f1 90 return HTTP_PROCESSING;
hendrikvincent 0:05ccbd4f84f1 91 }
hendrikvincent 0:05ccbd4f84f1 92 #endif
hendrikvincent 0:05ccbd4f84f1 93
hendrikvincent 0:05ccbd4f84f1 94 HTTPResult HTTPClient::post(const char* uri, const HTTPData& dataOut, HTTPData* pDataIn) //Blocking
hendrikvincent 0:05ccbd4f84f1 95 {
hendrikvincent 0:05ccbd4f84f1 96 doPost(uri, dataOut, pDataIn);
hendrikvincent 0:05ccbd4f84f1 97 return blockingProcess();
hendrikvincent 0:05ccbd4f84f1 98 }
hendrikvincent 0:05ccbd4f84f1 99
hendrikvincent 0:05ccbd4f84f1 100 HTTPResult HTTPClient::post(const char* uri, const HTTPData& dataOut, HTTPData* pDataIn, void (*pMethod)(HTTPResult)) //Non blocking
hendrikvincent 0:05ccbd4f84f1 101 {
hendrikvincent 0:05ccbd4f84f1 102 setOnResult(pMethod);
hendrikvincent 0:05ccbd4f84f1 103 doPost(uri, dataOut, pDataIn);
hendrikvincent 0:05ccbd4f84f1 104 return HTTP_PROCESSING;
hendrikvincent 0:05ccbd4f84f1 105 }
hendrikvincent 0:05ccbd4f84f1 106
hendrikvincent 0:05ccbd4f84f1 107 #if 0 //For info only
hendrikvincent 0:05ccbd4f84f1 108 template<class T>
hendrikvincent 0:05ccbd4f84f1 109 HTTPResult HTTPClient::post(const char* uri, const HTTPData& dataOut, HTTPData* pDataIn, T* pItem, void (T::*pMethod)(HTTPResult)) //Non blocking
hendrikvincent 0:05ccbd4f84f1 110 {
hendrikvincent 0:05ccbd4f84f1 111 setOnResult(pItem, pMethod);
hendrikvincent 0:05ccbd4f84f1 112 doPost(uri, dataOut, pDataIn);
hendrikvincent 0:05ccbd4f84f1 113 return HTTP_PROCESSING;
hendrikvincent 0:05ccbd4f84f1 114 }
hendrikvincent 0:05ccbd4f84f1 115 #endif
hendrikvincent 0:05ccbd4f84f1 116
hendrikvincent 0:05ccbd4f84f1 117 void HTTPClient::doGet(const char* uri, HTTPData* pDataIn)
hendrikvincent 0:05ccbd4f84f1 118 {
hendrikvincent 0:05ccbd4f84f1 119 m_meth = HTTP_GET;
hendrikvincent 0:05ccbd4f84f1 120 setup(uri, NULL, pDataIn);
hendrikvincent 0:05ccbd4f84f1 121 }
hendrikvincent 0:05ccbd4f84f1 122
hendrikvincent 0:05ccbd4f84f1 123 void HTTPClient::doPost(const char* uri, const HTTPData& dataOut, HTTPData* pDataIn)
hendrikvincent 0:05ccbd4f84f1 124 {
hendrikvincent 0:05ccbd4f84f1 125 m_meth = HTTP_POST;
hendrikvincent 0:05ccbd4f84f1 126 setup(uri, (HTTPData*) &dataOut, pDataIn);
hendrikvincent 0:05ccbd4f84f1 127 }
hendrikvincent 0:05ccbd4f84f1 128
hendrikvincent 0:05ccbd4f84f1 129 void HTTPClient::setOnResult( void (*pMethod)(HTTPResult) )
hendrikvincent 0:05ccbd4f84f1 130 {
hendrikvincent 0:05ccbd4f84f1 131 m_pCb = pMethod;
hendrikvincent 0:05ccbd4f84f1 132 m_pCbItem = NULL;
hendrikvincent 0:05ccbd4f84f1 133 m_pCbMeth = NULL;
hendrikvincent 0:05ccbd4f84f1 134 }
hendrikvincent 0:05ccbd4f84f1 135
hendrikvincent 0:05ccbd4f84f1 136 #if 0 //For info only
hendrikvincent 0:05ccbd4f84f1 137 template<class T>
hendrikvincent 0:05ccbd4f84f1 138 void HTTPClient::setOnResult( T* pItem, void (T::*pMethod)(NtpResult) )
hendrikvincent 0:05ccbd4f84f1 139 {
hendrikvincent 0:05ccbd4f84f1 140 m_pCb = NULL;
hendrikvincent 0:05ccbd4f84f1 141 m_pCbItem = (CDummy*) pItem;
hendrikvincent 0:05ccbd4f84f1 142 m_pCbMeth = (void (CDummy::*)(NtpResult)) pMethod;
hendrikvincent 0:05ccbd4f84f1 143 }
hendrikvincent 0:05ccbd4f84f1 144 #endif
hendrikvincent 0:05ccbd4f84f1 145
hendrikvincent 0:05ccbd4f84f1 146 void HTTPClient::setTimeout(int ms)
hendrikvincent 0:05ccbd4f84f1 147 {
hendrikvincent 0:05ccbd4f84f1 148 m_timeout = ms;
hendrikvincent 0:05ccbd4f84f1 149 //resetTimeout();
hendrikvincent 0:05ccbd4f84f1 150 }
hendrikvincent 0:05ccbd4f84f1 151
hendrikvincent 0:05ccbd4f84f1 152 void HTTPClient::poll() //Called by NetServices
hendrikvincent 0:05ccbd4f84f1 153 {
hendrikvincent 0:05ccbd4f84f1 154 if(m_closed)
hendrikvincent 0:05ccbd4f84f1 155 {
hendrikvincent 0:05ccbd4f84f1 156 return;
hendrikvincent 0:05ccbd4f84f1 157 }
hendrikvincent 0:05ccbd4f84f1 158 if(m_watchdog.read_ms()>m_timeout)
hendrikvincent 0:05ccbd4f84f1 159 {
hendrikvincent 0:05ccbd4f84f1 160 onTimeout();
hendrikvincent 0:05ccbd4f84f1 161 }
hendrikvincent 0:05ccbd4f84f1 162 else if(m_state == HTTP_READ_DATA_INCOMPLETE)
hendrikvincent 0:05ccbd4f84f1 163 {
hendrikvincent 0:05ccbd4f84f1 164 readData(); //Try to read more data
hendrikvincent 0:05ccbd4f84f1 165 if( m_state == HTTP_DONE )
hendrikvincent 0:05ccbd4f84f1 166 {
hendrikvincent 0:05ccbd4f84f1 167 //All data has been read, close w/ success :)
hendrikvincent 0:05ccbd4f84f1 168 DBG("Done :)!\n");
hendrikvincent 0:05ccbd4f84f1 169 onResult(HTTP_OK);
hendrikvincent 0:05ccbd4f84f1 170 close();
hendrikvincent 0:05ccbd4f84f1 171 }
hendrikvincent 0:05ccbd4f84f1 172 }
hendrikvincent 0:05ccbd4f84f1 173
hendrikvincent 0:05ccbd4f84f1 174 }
hendrikvincent 0:05ccbd4f84f1 175
hendrikvincent 0:05ccbd4f84f1 176 int HTTPClient::getHTTPResponseCode()
hendrikvincent 0:05ccbd4f84f1 177 {
hendrikvincent 0:05ccbd4f84f1 178 return m_httpResponseCode;
hendrikvincent 0:05ccbd4f84f1 179 }
hendrikvincent 0:05ccbd4f84f1 180
hendrikvincent 0:05ccbd4f84f1 181 void HTTPClient::setRequestHeader(const string& header, const string& value)
hendrikvincent 0:05ccbd4f84f1 182 {
hendrikvincent 0:05ccbd4f84f1 183 m_reqHeaders[header] = value;
hendrikvincent 0:05ccbd4f84f1 184 }
hendrikvincent 0:05ccbd4f84f1 185
hendrikvincent 0:05ccbd4f84f1 186 string& HTTPClient::getResponseHeader(const string& header)
hendrikvincent 0:05ccbd4f84f1 187 {
hendrikvincent 0:05ccbd4f84f1 188 return m_respHeaders[header];
hendrikvincent 0:05ccbd4f84f1 189 }
hendrikvincent 0:05ccbd4f84f1 190
hendrikvincent 0:05ccbd4f84f1 191 void HTTPClient::resetRequestHeaders()
hendrikvincent 0:05ccbd4f84f1 192 {
hendrikvincent 0:05ccbd4f84f1 193 m_reqHeaders.clear();
hendrikvincent 0:05ccbd4f84f1 194 }
hendrikvincent 0:05ccbd4f84f1 195
hendrikvincent 0:05ccbd4f84f1 196 void HTTPClient::resetTimeout()
hendrikvincent 0:05ccbd4f84f1 197 {
hendrikvincent 0:05ccbd4f84f1 198 m_watchdog.reset();
hendrikvincent 0:05ccbd4f84f1 199 m_watchdog.start();
hendrikvincent 0:05ccbd4f84f1 200 }
hendrikvincent 0:05ccbd4f84f1 201
hendrikvincent 0:05ccbd4f84f1 202 void HTTPClient::init() //Create and setup socket if needed
hendrikvincent 0:05ccbd4f84f1 203 {
hendrikvincent 0:05ccbd4f84f1 204 close(); //Remove previous elements
hendrikvincent 0:05ccbd4f84f1 205 if(!m_closed) //Already opened
hendrikvincent 0:05ccbd4f84f1 206 return;
hendrikvincent 0:05ccbd4f84f1 207 m_state = HTTP_WRITE_HEADERS;
hendrikvincent 0:05ccbd4f84f1 208 m_pTCPSocket = new TCPSocket;
hendrikvincent 0:05ccbd4f84f1 209 m_pTCPSocket->setOnEvent(this, &HTTPClient::onTCPSocketEvent);
hendrikvincent 0:05ccbd4f84f1 210 m_closed = false;
hendrikvincent 0:05ccbd4f84f1 211 m_httpResponseCode = 0;
hendrikvincent 0:05ccbd4f84f1 212 }
hendrikvincent 0:05ccbd4f84f1 213
hendrikvincent 0:05ccbd4f84f1 214 void HTTPClient::close()
hendrikvincent 0:05ccbd4f84f1 215 {
hendrikvincent 0:05ccbd4f84f1 216 if(m_closed)
hendrikvincent 0:05ccbd4f84f1 217 return;
hendrikvincent 0:05ccbd4f84f1 218 m_state = HTTP_CLOSED;
hendrikvincent 0:05ccbd4f84f1 219 //Now Request headers are kept btw requests unless resetRequestHeaders() is called
hendrikvincent 0:05ccbd4f84f1 220 //m_reqHeaders.clear(); //Clear headers for next requests
hendrikvincent 0:05ccbd4f84f1 221 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
hendrikvincent 0:05ccbd4f84f1 222 m_watchdog.stop(); //Stop timeout
hendrikvincent 0:05ccbd4f84f1 223 m_watchdog.reset();
hendrikvincent 0:05ccbd4f84f1 224 m_pTCPSocket->resetOnEvent();
hendrikvincent 0:05ccbd4f84f1 225 m_pTCPSocket->close();
hendrikvincent 0:05ccbd4f84f1 226 delete m_pTCPSocket;
hendrikvincent 0:05ccbd4f84f1 227 m_pTCPSocket = NULL;
hendrikvincent 0:05ccbd4f84f1 228 if( m_pDnsReq )
hendrikvincent 0:05ccbd4f84f1 229 {
hendrikvincent 0:05ccbd4f84f1 230 m_pDnsReq->close();
hendrikvincent 0:05ccbd4f84f1 231 delete m_pDnsReq;
hendrikvincent 0:05ccbd4f84f1 232 m_pDnsReq = NULL;
hendrikvincent 0:05ccbd4f84f1 233 }
hendrikvincent 0:05ccbd4f84f1 234 }
hendrikvincent 0:05ccbd4f84f1 235
hendrikvincent 0:05ccbd4f84f1 236 void HTTPClient::setup(const char* uri, HTTPData* pDataOut, HTTPData* pDataIn) //Setup request, make DNS Req if necessary
hendrikvincent 0:05ccbd4f84f1 237 {
hendrikvincent 0:05ccbd4f84f1 238 init(); //Initialize client in known state, create socket
hendrikvincent 0:05ccbd4f84f1 239 m_pDataOut = pDataOut;
hendrikvincent 0:05ccbd4f84f1 240 m_pDataIn = pDataIn;
hendrikvincent 0:05ccbd4f84f1 241 resetTimeout();
hendrikvincent 0:05ccbd4f84f1 242
hendrikvincent 0:05ccbd4f84f1 243 //Erase previous headers
hendrikvincent 0:05ccbd4f84f1 244 //Do NOT clear m_reqHeaders as they might have already set before connecting
hendrikvincent 0:05ccbd4f84f1 245 m_respHeaders.clear();
hendrikvincent 0:05ccbd4f84f1 246
hendrikvincent 0:05ccbd4f84f1 247 //Erase response buffer
hendrikvincent 0:05ccbd4f84f1 248 if(m_pDataIn)
hendrikvincent 0:05ccbd4f84f1 249 m_pDataIn->clear();
hendrikvincent 0:05ccbd4f84f1 250
hendrikvincent 0:05ccbd4f84f1 251 //Assert that buffers are initialized properly
hendrikvincent 0:05ccbd4f84f1 252 m_dataLen = 0;
hendrikvincent 0:05ccbd4f84f1 253 m_bufRemainingLen = 0;
hendrikvincent 0:05ccbd4f84f1 254
hendrikvincent 0:05ccbd4f84f1 255 Url url;
hendrikvincent 0:05ccbd4f84f1 256 url.fromString(uri);
hendrikvincent 0:05ccbd4f84f1 257
hendrikvincent 0:05ccbd4f84f1 258 m_path = url.getPath();
hendrikvincent 0:05ccbd4f84f1 259
hendrikvincent 0:05ccbd4f84f1 260 m_server.setName(url.getHost().c_str());
hendrikvincent 0:05ccbd4f84f1 261
hendrikvincent 0:05ccbd4f84f1 262 if( url.getPort() > 0 )
hendrikvincent 0:05ccbd4f84f1 263 {
hendrikvincent 0:05ccbd4f84f1 264 m_server.setPort( url.getPort() );
hendrikvincent 0:05ccbd4f84f1 265 }
hendrikvincent 0:05ccbd4f84f1 266 else
hendrikvincent 0:05ccbd4f84f1 267 {
hendrikvincent 0:05ccbd4f84f1 268 m_server.setPort( HTTP_PORT );
hendrikvincent 0:05ccbd4f84f1 269 }
hendrikvincent 0:05ccbd4f84f1 270
hendrikvincent 0:05ccbd4f84f1 271 DBG("URL parsed,\r\nHost: %s\r\nPort: %d\r\nPath: %s\n", url.getHost().c_str(), url.getPort(), url.getPath().c_str());
hendrikvincent 0:05ccbd4f84f1 272
hendrikvincent 0:05ccbd4f84f1 273 IpAddr ip;
hendrikvincent 0:05ccbd4f84f1 274 if( url.getHostIp(&ip) )
hendrikvincent 0:05ccbd4f84f1 275 {
hendrikvincent 0:05ccbd4f84f1 276 m_server.setIp(ip);
hendrikvincent 0:05ccbd4f84f1 277 connect();
hendrikvincent 0:05ccbd4f84f1 278 }
hendrikvincent 0:05ccbd4f84f1 279 else
hendrikvincent 0:05ccbd4f84f1 280 {
hendrikvincent 0:05ccbd4f84f1 281 DBG("DNS Query...\n");
hendrikvincent 0:05ccbd4f84f1 282 m_pDnsReq = new DNSRequest();
hendrikvincent 0:05ccbd4f84f1 283 m_pDnsReq->setOnReply(this, &HTTPClient::onDNSReply);
hendrikvincent 0:05ccbd4f84f1 284 m_pDnsReq->resolve(&m_server);
hendrikvincent 0:05ccbd4f84f1 285 DBG("HTTPClient : DNSRequest %p\n", m_pDnsReq);
hendrikvincent 0:05ccbd4f84f1 286 }
hendrikvincent 0:05ccbd4f84f1 287
hendrikvincent 0:05ccbd4f84f1 288 }
hendrikvincent 0:05ccbd4f84f1 289
hendrikvincent 0:05ccbd4f84f1 290 void HTTPClient::connect() //Start Connection
hendrikvincent 0:05ccbd4f84f1 291 {
hendrikvincent 0:05ccbd4f84f1 292 resetTimeout();
hendrikvincent 0:05ccbd4f84f1 293 DBG("Connecting...\n");
hendrikvincent 0:05ccbd4f84f1 294 m_pTCPSocket->connect(m_server);
hendrikvincent 0:05ccbd4f84f1 295 }
hendrikvincent 0:05ccbd4f84f1 296
hendrikvincent 0:05ccbd4f84f1 297 #define MIN(a,b) ((a)<(b)?(a):(b))
hendrikvincent 0:05ccbd4f84f1 298 #define ABS(a) (((a)>0)?(a):0)
hendrikvincent 0:05ccbd4f84f1 299 int HTTPClient::tryRead() //Try to read data from tcp packet and put in the HTTPData object
hendrikvincent 0:05ccbd4f84f1 300 {
hendrikvincent 0:05ccbd4f84f1 301 int len = 0;
hendrikvincent 0:05ccbd4f84f1 302 int readLen;
hendrikvincent 0:05ccbd4f84f1 303 do
hendrikvincent 0:05ccbd4f84f1 304 {
hendrikvincent 0:05ccbd4f84f1 305 if(m_state == HTTP_READ_DATA_INCOMPLETE) //First try to complete buffer copy
hendrikvincent 0:05ccbd4f84f1 306 {
hendrikvincent 0:05ccbd4f84f1 307 readLen = m_bufRemainingLen;
hendrikvincent 0:05ccbd4f84f1 308 /* if (readLen == 0)
hendrikvincent 0:05ccbd4f84f1 309 {
hendrikvincent 0:05ccbd4f84f1 310 m_state = HTTP_READ_DATA;
hendrikvincent 0:05ccbd4f84f1 311 continue;
hendrikvincent 0:05ccbd4f84f1 312 }*/
hendrikvincent 0:05ccbd4f84f1 313 }
hendrikvincent 0:05ccbd4f84f1 314 else
hendrikvincent 0:05ccbd4f84f1 315 {
hendrikvincent 0:05ccbd4f84f1 316 readLen = m_pTCPSocket->recv(m_buf, MIN(ABS(m_dataLen-m_dataPos),CHUNK_SIZE));
hendrikvincent 0:05ccbd4f84f1 317 if(readLen < 0) //Error
hendrikvincent 0:05ccbd4f84f1 318 {
hendrikvincent 0:05ccbd4f84f1 319 return readLen;
hendrikvincent 0:05ccbd4f84f1 320 }
hendrikvincent 0:05ccbd4f84f1 321
hendrikvincent 0:05ccbd4f84f1 322 DBG("%d bytes read\n", readLen);
hendrikvincent 0:05ccbd4f84f1 323
hendrikvincent 0:05ccbd4f84f1 324 m_pBufRemaining = m_buf;
hendrikvincent 0:05ccbd4f84f1 325 }
hendrikvincent 0:05ccbd4f84f1 326 if (readLen == 0)
hendrikvincent 0:05ccbd4f84f1 327 {
hendrikvincent 0:05ccbd4f84f1 328 m_state = HTTP_READ_DATA;
hendrikvincent 0:05ccbd4f84f1 329 return len;
hendrikvincent 0:05ccbd4f84f1 330 }
hendrikvincent 0:05ccbd4f84f1 331
hendrikvincent 0:05ccbd4f84f1 332 DBG("Trying to write %d bytes\n", readLen);
hendrikvincent 0:05ccbd4f84f1 333
hendrikvincent 0:05ccbd4f84f1 334 int writtenLen = m_pDataIn->write(m_pBufRemaining, readLen);
hendrikvincent 0:05ccbd4f84f1 335 m_dataPos += writtenLen;
hendrikvincent 0:05ccbd4f84f1 336
hendrikvincent 0:05ccbd4f84f1 337 DBG("%d bytes written\n", writtenLen);
hendrikvincent 0:05ccbd4f84f1 338
hendrikvincent 0:05ccbd4f84f1 339 if(writtenLen<readLen) //Data was not completely written
hendrikvincent 0:05ccbd4f84f1 340 {
hendrikvincent 0:05ccbd4f84f1 341 m_pBufRemaining += writtenLen;
hendrikvincent 0:05ccbd4f84f1 342 m_bufRemainingLen = readLen - writtenLen;
hendrikvincent 0:05ccbd4f84f1 343 m_state = HTTP_READ_DATA_INCOMPLETE;
hendrikvincent 0:05ccbd4f84f1 344 return len + writtenLen;
hendrikvincent 0:05ccbd4f84f1 345 }
hendrikvincent 0:05ccbd4f84f1 346 else
hendrikvincent 0:05ccbd4f84f1 347 {
hendrikvincent 0:05ccbd4f84f1 348 m_state = HTTP_READ_DATA;
hendrikvincent 0:05ccbd4f84f1 349 }
hendrikvincent 0:05ccbd4f84f1 350 len += readLen;
hendrikvincent 0:05ccbd4f84f1 351 } while(readLen>0);
hendrikvincent 0:05ccbd4f84f1 352
hendrikvincent 0:05ccbd4f84f1 353 return len;
hendrikvincent 0:05ccbd4f84f1 354 }
hendrikvincent 0:05ccbd4f84f1 355
hendrikvincent 0:05ccbd4f84f1 356 void HTTPClient::readData() //Data has been read
hendrikvincent 0:05ccbd4f84f1 357 {
hendrikvincent 0:05ccbd4f84f1 358 if(m_pDataIn == NULL) //Nothing to read (in HEAD for instance, not supported now)
hendrikvincent 0:05ccbd4f84f1 359 {
hendrikvincent 0:05ccbd4f84f1 360 m_state = HTTP_DONE;
hendrikvincent 0:05ccbd4f84f1 361 return;
hendrikvincent 0:05ccbd4f84f1 362 }
hendrikvincent 0:05ccbd4f84f1 363 DBG("Reading response...\n");
hendrikvincent 0:05ccbd4f84f1 364 int len = 0;
hendrikvincent 0:05ccbd4f84f1 365 do
hendrikvincent 0:05ccbd4f84f1 366 {
hendrikvincent 0:05ccbd4f84f1 367 if(m_dataChunked && (m_state != HTTP_READ_DATA_INCOMPLETE))
hendrikvincent 0:05ccbd4f84f1 368 {
hendrikvincent 0:05ccbd4f84f1 369 if(m_dataLen==0)
hendrikvincent 0:05ccbd4f84f1 370 {
hendrikvincent 0:05ccbd4f84f1 371 DBG("Reading chunk length...\n");
hendrikvincent 0:05ccbd4f84f1 372 //New block
hendrikvincent 0:05ccbd4f84f1 373 static char chunkHeader[16];
hendrikvincent 0:05ccbd4f84f1 374 //We use m_dataPos to retain the read position in chunkHeader, it has been set to 0 before the first call of readData()
hendrikvincent 0:05ccbd4f84f1 375 m_dataPos += readLine(chunkHeader + m_dataPos, ABS(16 - m_dataPos));
hendrikvincent 0:05ccbd4f84f1 376 if( m_dataPos > 0 )
hendrikvincent 0:05ccbd4f84f1 377 {
hendrikvincent 0:05ccbd4f84f1 378 if( chunkHeader[strlen(chunkHeader)-1] == 0x0d )
hendrikvincent 0:05ccbd4f84f1 379 {
hendrikvincent 0:05ccbd4f84f1 380 sscanf(chunkHeader, "%x%*[^\r\n]", &m_dataLen);
hendrikvincent 0:05ccbd4f84f1 381 DBG("Chunk length is %d\n", m_dataLen);
hendrikvincent 0:05ccbd4f84f1 382 m_dataPos = 0;
hendrikvincent 0:05ccbd4f84f1 383 }
hendrikvincent 0:05ccbd4f84f1 384 else
hendrikvincent 0:05ccbd4f84f1 385 {
hendrikvincent 0:05ccbd4f84f1 386 //Wait for end of line
hendrikvincent 0:05ccbd4f84f1 387 DBG("Wait for CRLF\n");
hendrikvincent 0:05ccbd4f84f1 388 return;
hendrikvincent 0:05ccbd4f84f1 389 }
hendrikvincent 0:05ccbd4f84f1 390 }
hendrikvincent 0:05ccbd4f84f1 391 else
hendrikvincent 0:05ccbd4f84f1 392 {
hendrikvincent 0:05ccbd4f84f1 393 DBG("Wait for data\n");
hendrikvincent 0:05ccbd4f84f1 394 //Wait for data
hendrikvincent 0:05ccbd4f84f1 395 return;
hendrikvincent 0:05ccbd4f84f1 396 }
hendrikvincent 0:05ccbd4f84f1 397 }
hendrikvincent 0:05ccbd4f84f1 398 }
hendrikvincent 0:05ccbd4f84f1 399
hendrikvincent 0:05ccbd4f84f1 400 //Proper data recovery
hendrikvincent 0:05ccbd4f84f1 401 len = tryRead();
hendrikvincent 0:05ccbd4f84f1 402 if(len<0) //Error
hendrikvincent 0:05ccbd4f84f1 403 {
hendrikvincent 0:05ccbd4f84f1 404 onResult(HTTP_CONN);
hendrikvincent 0:05ccbd4f84f1 405 return;
hendrikvincent 0:05ccbd4f84f1 406 }
hendrikvincent 0:05ccbd4f84f1 407
hendrikvincent 0:05ccbd4f84f1 408 if(len>0)
hendrikvincent 0:05ccbd4f84f1 409 resetTimeout();
hendrikvincent 0:05ccbd4f84f1 410
hendrikvincent 0:05ccbd4f84f1 411 if(m_state == HTTP_READ_DATA_INCOMPLETE)
hendrikvincent 0:05ccbd4f84f1 412 return;
hendrikvincent 0:05ccbd4f84f1 413
hendrikvincent 0:05ccbd4f84f1 414 //Chunk Tail
hendrikvincent 0:05ccbd4f84f1 415 if(m_dataChunked)
hendrikvincent 0:05ccbd4f84f1 416 {
hendrikvincent 0:05ccbd4f84f1 417 if(m_dataPos >= m_dataLen)
hendrikvincent 0:05ccbd4f84f1 418 {
hendrikvincent 0:05ccbd4f84f1 419 DBG("Chunk read, wait for CRLF\n");
hendrikvincent 0:05ccbd4f84f1 420 char chunkTail[3];
hendrikvincent 0:05ccbd4f84f1 421 m_dataPos += readLine(chunkTail, 3);
hendrikvincent 0:05ccbd4f84f1 422 }
hendrikvincent 0:05ccbd4f84f1 423
hendrikvincent 0:05ccbd4f84f1 424 if(m_dataPos >= m_dataLen + 1) //1 == strlen("\n"),
hendrikvincent 0:05ccbd4f84f1 425 {
hendrikvincent 0:05ccbd4f84f1 426 DBG("End of chunk\n");
hendrikvincent 0:05ccbd4f84f1 427 if(m_dataLen==0)
hendrikvincent 0:05ccbd4f84f1 428 {
hendrikvincent 0:05ccbd4f84f1 429 DBG("End of file\n");
hendrikvincent 0:05ccbd4f84f1 430 //End of file
hendrikvincent 0:05ccbd4f84f1 431 m_state = HTTP_DONE; //Done
hendrikvincent 0:05ccbd4f84f1 432 }
hendrikvincent 0:05ccbd4f84f1 433 m_dataLen = 0;
hendrikvincent 0:05ccbd4f84f1 434 m_dataPos = 0;
hendrikvincent 0:05ccbd4f84f1 435 }
hendrikvincent 0:05ccbd4f84f1 436 }
hendrikvincent 0:05ccbd4f84f1 437
hendrikvincent 0:05ccbd4f84f1 438 } while(len>0);
hendrikvincent 0:05ccbd4f84f1 439
hendrikvincent 0:05ccbd4f84f1 440
hendrikvincent 0:05ccbd4f84f1 441 if(!m_dataChunked && (m_dataPos >= m_dataLen)) //All Data has been received
hendrikvincent 0:05ccbd4f84f1 442 {
hendrikvincent 0:05ccbd4f84f1 443 DBG("End of file\n");
hendrikvincent 0:05ccbd4f84f1 444 m_state = HTTP_DONE; //Done
hendrikvincent 0:05ccbd4f84f1 445 }
hendrikvincent 0:05ccbd4f84f1 446 }
hendrikvincent 0:05ccbd4f84f1 447
hendrikvincent 0:05ccbd4f84f1 448 void HTTPClient::writeData() //Data has been written & buf is free
hendrikvincent 0:05ccbd4f84f1 449 {
hendrikvincent 0:05ccbd4f84f1 450 if(m_pDataOut == NULL) //Nothing to write (in POST for instance)
hendrikvincent 0:05ccbd4f84f1 451 {
hendrikvincent 0:05ccbd4f84f1 452 m_dataLen = 0; //Reset Data Length
hendrikvincent 0:05ccbd4f84f1 453 m_state = HTTP_READ_HEADERS;
hendrikvincent 0:05ccbd4f84f1 454 return;
hendrikvincent 0:05ccbd4f84f1 455 }
hendrikvincent 0:05ccbd4f84f1 456 int len = m_pDataOut->read(m_buf, CHUNK_SIZE);
hendrikvincent 0:05ccbd4f84f1 457 if( m_dataChunked )
hendrikvincent 0:05ccbd4f84f1 458 {
hendrikvincent 0:05ccbd4f84f1 459 //Write chunk header
hendrikvincent 0:05ccbd4f84f1 460 char chunkHeader[16];
hendrikvincent 0:05ccbd4f84f1 461 sprintf(chunkHeader, "%d\r\n", len);
hendrikvincent 0:05ccbd4f84f1 462 int ret = m_pTCPSocket->send(chunkHeader, strlen(chunkHeader));
hendrikvincent 0:05ccbd4f84f1 463 if(ret < 0)//Error
hendrikvincent 0:05ccbd4f84f1 464 {
hendrikvincent 0:05ccbd4f84f1 465 onResult(HTTP_CONN);
hendrikvincent 0:05ccbd4f84f1 466 return;
hendrikvincent 0:05ccbd4f84f1 467 }
hendrikvincent 0:05ccbd4f84f1 468 }
hendrikvincent 0:05ccbd4f84f1 469 m_pTCPSocket->send(m_buf, len);
hendrikvincent 0:05ccbd4f84f1 470 m_dataPos+=len;
hendrikvincent 0:05ccbd4f84f1 471 if( m_dataChunked )
hendrikvincent 0:05ccbd4f84f1 472 {
hendrikvincent 0:05ccbd4f84f1 473 m_pTCPSocket->send("\r\n", 2); //Chunk-terminating CRLF
hendrikvincent 0:05ccbd4f84f1 474 }
hendrikvincent 0:05ccbd4f84f1 475 if( ( !m_dataChunked && (m_dataPos >= m_dataLen) )
hendrikvincent 0:05ccbd4f84f1 476 || ( m_dataChunked && !len ) ) //All Data has been sent
hendrikvincent 0:05ccbd4f84f1 477 {
hendrikvincent 0:05ccbd4f84f1 478 m_dataLen = 0; //Reset Data Length
hendrikvincent 0:05ccbd4f84f1 479 m_state = HTTP_READ_HEADERS; //Wait for resp
hendrikvincent 0:05ccbd4f84f1 480 }
hendrikvincent 0:05ccbd4f84f1 481 }
hendrikvincent 0:05ccbd4f84f1 482
hendrikvincent 0:05ccbd4f84f1 483 void HTTPClient::onTCPSocketEvent(TCPSocketEvent e)
hendrikvincent 0:05ccbd4f84f1 484 {
hendrikvincent 0:05ccbd4f84f1 485 DBG("Event %d in HTTPClient::onTCPSocketEvent()\n", e);
hendrikvincent 0:05ccbd4f84f1 486
hendrikvincent 0:05ccbd4f84f1 487 if(m_closed)
hendrikvincent 0:05ccbd4f84f1 488 {
hendrikvincent 0:05ccbd4f84f1 489 DBG("WARN: Discarded\n");
hendrikvincent 0:05ccbd4f84f1 490 return;
hendrikvincent 0:05ccbd4f84f1 491 }
hendrikvincent 0:05ccbd4f84f1 492
hendrikvincent 0:05ccbd4f84f1 493 switch(e)
hendrikvincent 0:05ccbd4f84f1 494 {
hendrikvincent 0:05ccbd4f84f1 495 case TCPSOCKET_READABLE: //Incoming data
hendrikvincent 0:05ccbd4f84f1 496 resetTimeout();
hendrikvincent 0:05ccbd4f84f1 497 switch(m_state)
hendrikvincent 0:05ccbd4f84f1 498 {
hendrikvincent 0:05ccbd4f84f1 499 case HTTP_READ_HEADERS:
hendrikvincent 0:05ccbd4f84f1 500 if( !readHeaders() )
hendrikvincent 0:05ccbd4f84f1 501 {
hendrikvincent 0:05ccbd4f84f1 502 return; //Connection has been closed or incomplete data
hendrikvincent 0:05ccbd4f84f1 503 }
hendrikvincent 0:05ccbd4f84f1 504 if( m_pDataIn )
hendrikvincent 0:05ccbd4f84f1 505 {
hendrikvincent 0:05ccbd4f84f1 506 //Data chunked?
hendrikvincent 0:05ccbd4f84f1 507 if(m_respHeaders["Transfer-Encoding"].find("chunked")!=string::npos)
hendrikvincent 0:05ccbd4f84f1 508 {
hendrikvincent 0:05ccbd4f84f1 509 m_dataChunked = true;
hendrikvincent 0:05ccbd4f84f1 510 m_dataPos = 0;
hendrikvincent 0:05ccbd4f84f1 511 m_dataLen = 0;
hendrikvincent 0:05ccbd4f84f1 512 DBG("Encoding is chunked, Content-Type is %s\n", m_respHeaders["Content-Type"].c_str() );
hendrikvincent 0:05ccbd4f84f1 513 }
hendrikvincent 0:05ccbd4f84f1 514 else
hendrikvincent 0:05ccbd4f84f1 515 {
hendrikvincent 0:05ccbd4f84f1 516 m_dataChunked = false;
hendrikvincent 0:05ccbd4f84f1 517 int len = 0;
hendrikvincent 0:05ccbd4f84f1 518 //DBG("Preparing read... len = %s\n", m_respHeaders["Content-Length"].c_str());
hendrikvincent 0:05ccbd4f84f1 519 sscanf(m_respHeaders["Content-Length"].c_str(), "%d", &len);
hendrikvincent 0:05ccbd4f84f1 520 m_pDataIn->setDataLen( len );
hendrikvincent 0:05ccbd4f84f1 521 m_dataPos = 0;
hendrikvincent 0:05ccbd4f84f1 522 m_dataLen = len;
hendrikvincent 0:05ccbd4f84f1 523 DBG("Content-Length is %d, Content-Type is %s\n", len, m_respHeaders["Content-Type"].c_str() );
hendrikvincent 0:05ccbd4f84f1 524 }
hendrikvincent 0:05ccbd4f84f1 525 m_pDataIn->setDataType( m_respHeaders["Content-Type"] );
hendrikvincent 0:05ccbd4f84f1 526 }
hendrikvincent 0:05ccbd4f84f1 527 case HTTP_READ_DATA:
hendrikvincent 0:05ccbd4f84f1 528 readData();
hendrikvincent 0:05ccbd4f84f1 529 break;
hendrikvincent 0:05ccbd4f84f1 530 case HTTP_READ_DATA_INCOMPLETE:
hendrikvincent 0:05ccbd4f84f1 531 break; //We need to handle previously received data first
hendrikvincent 0:05ccbd4f84f1 532 default:
hendrikvincent 0:05ccbd4f84f1 533 //Should not receive data now, req is not complete
hendrikvincent 0:05ccbd4f84f1 534 onResult(HTTP_PRTCL);
hendrikvincent 0:05ccbd4f84f1 535 }
hendrikvincent 0:05ccbd4f84f1 536 //All data has been read, close w/ success :)
hendrikvincent 0:05ccbd4f84f1 537 if( m_state == HTTP_DONE )
hendrikvincent 0:05ccbd4f84f1 538 {
hendrikvincent 0:05ccbd4f84f1 539 DBG("Done :)!\n");
hendrikvincent 0:05ccbd4f84f1 540 onResult(HTTP_OK);
hendrikvincent 0:05ccbd4f84f1 541 }
hendrikvincent 0:05ccbd4f84f1 542 break;
hendrikvincent 0:05ccbd4f84f1 543 case TCPSOCKET_CONNECTED:
hendrikvincent 0:05ccbd4f84f1 544 case TCPSOCKET_WRITEABLE: //We can send data
hendrikvincent 0:05ccbd4f84f1 545 resetTimeout();
hendrikvincent 0:05ccbd4f84f1 546 switch(m_state)
hendrikvincent 0:05ccbd4f84f1 547 {
hendrikvincent 0:05ccbd4f84f1 548 case HTTP_WRITE_HEADERS:
hendrikvincent 0:05ccbd4f84f1 549 //Update headers fields according to m_pDataOut
hendrikvincent 0:05ccbd4f84f1 550 if( m_pDataOut )
hendrikvincent 0:05ccbd4f84f1 551 {
hendrikvincent 0:05ccbd4f84f1 552 //Data is chunked?
hendrikvincent 0:05ccbd4f84f1 553 if(m_pDataOut->getIsChunked())
hendrikvincent 0:05ccbd4f84f1 554 {
hendrikvincent 0:05ccbd4f84f1 555 m_dataChunked = true;
hendrikvincent 0:05ccbd4f84f1 556 m_reqHeaders.erase("Content-Length");
hendrikvincent 0:05ccbd4f84f1 557 m_reqHeaders["Transfer-Encoding"] = "chunked";
hendrikvincent 0:05ccbd4f84f1 558 }
hendrikvincent 0:05ccbd4f84f1 559 else
hendrikvincent 0:05ccbd4f84f1 560 {
hendrikvincent 0:05ccbd4f84f1 561 m_dataChunked = false;
hendrikvincent 0:05ccbd4f84f1 562 char c_len[16] = "0";
hendrikvincent 0:05ccbd4f84f1 563 int len = m_pDataOut->getDataLen();
hendrikvincent 0:05ccbd4f84f1 564 sprintf(c_len, "%d", len);
hendrikvincent 0:05ccbd4f84f1 565 m_dataPos = 0;
hendrikvincent 0:05ccbd4f84f1 566 m_dataLen = len;
hendrikvincent 0:05ccbd4f84f1 567 m_reqHeaders.erase("Transfer-Encoding");
hendrikvincent 0:05ccbd4f84f1 568 m_reqHeaders["Content-Length"] = string(c_len);
hendrikvincent 0:05ccbd4f84f1 569 }
hendrikvincent 0:05ccbd4f84f1 570 string type = m_pDataOut->getDataType();
hendrikvincent 0:05ccbd4f84f1 571 if(!type.empty())
hendrikvincent 0:05ccbd4f84f1 572 {
hendrikvincent 0:05ccbd4f84f1 573 m_reqHeaders["Content-Type"] = type;
hendrikvincent 0:05ccbd4f84f1 574 }
hendrikvincent 0:05ccbd4f84f1 575 else
hendrikvincent 0:05ccbd4f84f1 576 {
hendrikvincent 0:05ccbd4f84f1 577 m_reqHeaders.erase("Content-Type");
hendrikvincent 0:05ccbd4f84f1 578 }
hendrikvincent 0:05ccbd4f84f1 579 }
hendrikvincent 0:05ccbd4f84f1 580 if( !writeHeaders() )
hendrikvincent 0:05ccbd4f84f1 581 {
hendrikvincent 0:05ccbd4f84f1 582 return; //Connection has been closed
hendrikvincent 0:05ccbd4f84f1 583 }
hendrikvincent 0:05ccbd4f84f1 584 break; //Wait for writeable event before sending payload
hendrikvincent 0:05ccbd4f84f1 585 case HTTP_WRITE_DATA:
hendrikvincent 0:05ccbd4f84f1 586 writeData();
hendrikvincent 0:05ccbd4f84f1 587 break;
hendrikvincent 0:05ccbd4f84f1 588 }
hendrikvincent 0:05ccbd4f84f1 589 //Otherwise request has been sent, now wait for resp
hendrikvincent 0:05ccbd4f84f1 590 break;
hendrikvincent 0:05ccbd4f84f1 591 case TCPSOCKET_CONTIMEOUT:
hendrikvincent 0:05ccbd4f84f1 592 case TCPSOCKET_CONRST:
hendrikvincent 0:05ccbd4f84f1 593 case TCPSOCKET_CONABRT:
hendrikvincent 0:05ccbd4f84f1 594 case TCPSOCKET_ERROR:
hendrikvincent 0:05ccbd4f84f1 595 DBG("Connection error.\n");
hendrikvincent 0:05ccbd4f84f1 596 onResult(HTTP_CONN);
hendrikvincent 0:05ccbd4f84f1 597 case TCPSOCKET_DISCONNECTED:
hendrikvincent 0:05ccbd4f84f1 598 //There might still be some data available for reading
hendrikvincent 0:05ccbd4f84f1 599 //So if we are in a reading state, do not close the socket yet
hendrikvincent 0:05ccbd4f84f1 600 if( (m_state != HTTP_READ_DATA_INCOMPLETE) && (m_state != HTTP_DONE) && (m_state != HTTP_CLOSED) )
hendrikvincent 0:05ccbd4f84f1 601 {
hendrikvincent 0:05ccbd4f84f1 602 onResult(HTTP_CONN);
hendrikvincent 0:05ccbd4f84f1 603 }
hendrikvincent 0:05ccbd4f84f1 604 DBG("Connection closed by remote host.\n");
hendrikvincent 0:05ccbd4f84f1 605 break;
hendrikvincent 0:05ccbd4f84f1 606 }
hendrikvincent 0:05ccbd4f84f1 607 }
hendrikvincent 0:05ccbd4f84f1 608
hendrikvincent 0:05ccbd4f84f1 609 void HTTPClient::onDNSReply(DNSReply r)
hendrikvincent 0:05ccbd4f84f1 610 {
hendrikvincent 0:05ccbd4f84f1 611 if(m_closed)
hendrikvincent 0:05ccbd4f84f1 612 {
hendrikvincent 0:05ccbd4f84f1 613 DBG("WARN: Discarded\n");
hendrikvincent 0:05ccbd4f84f1 614 return;
hendrikvincent 0:05ccbd4f84f1 615 }
hendrikvincent 0:05ccbd4f84f1 616
hendrikvincent 0:05ccbd4f84f1 617 if( r != DNS_FOUND )
hendrikvincent 0:05ccbd4f84f1 618 {
hendrikvincent 0:05ccbd4f84f1 619 DBG("Could not resolve hostname.\n");
hendrikvincent 0:05ccbd4f84f1 620 onResult(HTTP_DNS);
hendrikvincent 0:05ccbd4f84f1 621 return;
hendrikvincent 0:05ccbd4f84f1 622 }
hendrikvincent 0:05ccbd4f84f1 623
hendrikvincent 0:05ccbd4f84f1 624 DBG("DNS Resolved to %d.%d.%d.%d.\n",m_server.getIp()[0],m_server.getIp()[1],m_server.getIp()[2],m_server.getIp()[3]);
hendrikvincent 0:05ccbd4f84f1 625 //If no error, m_server has been updated by m_pDnsReq so we're set to go !
hendrikvincent 0:05ccbd4f84f1 626 m_pDnsReq->close();
hendrikvincent 0:05ccbd4f84f1 627 delete m_pDnsReq;
hendrikvincent 0:05ccbd4f84f1 628 m_pDnsReq = NULL;
hendrikvincent 0:05ccbd4f84f1 629 connect();
hendrikvincent 0:05ccbd4f84f1 630 }
hendrikvincent 0:05ccbd4f84f1 631
hendrikvincent 0:05ccbd4f84f1 632 void HTTPClient::onResult(HTTPResult r) //Called when exchange completed or on failure
hendrikvincent 0:05ccbd4f84f1 633 {
hendrikvincent 0:05ccbd4f84f1 634 if(m_pCbItem && m_pCbMeth)
hendrikvincent 0:05ccbd4f84f1 635 (m_pCbItem->*m_pCbMeth)(r);
hendrikvincent 0:05ccbd4f84f1 636 else if(m_pCb)
hendrikvincent 0:05ccbd4f84f1 637 m_pCb(r);
hendrikvincent 0:05ccbd4f84f1 638 m_blockingResult = r; //Blocking mode
hendrikvincent 0:05ccbd4f84f1 639 close(); //FIXME:Remove suppl. close() calls
hendrikvincent 0:05ccbd4f84f1 640 }
hendrikvincent 0:05ccbd4f84f1 641
hendrikvincent 0:05ccbd4f84f1 642 void HTTPClient::onTimeout() //Connection has timed out
hendrikvincent 0:05ccbd4f84f1 643 {
hendrikvincent 0:05ccbd4f84f1 644 DBG("Timed out.\n");
hendrikvincent 0:05ccbd4f84f1 645 onResult(HTTP_TIMEOUT);
hendrikvincent 0:05ccbd4f84f1 646 close();
hendrikvincent 0:05ccbd4f84f1 647 }
hendrikvincent 0:05ccbd4f84f1 648
hendrikvincent 0:05ccbd4f84f1 649 //Headers
hendrikvincent 0:05ccbd4f84f1 650
hendrikvincent 0:05ccbd4f84f1 651 //TODO: Factorize w/ HTTPRequestHandler in a single HTTPHeader class
hendrikvincent 0:05ccbd4f84f1 652
hendrikvincent 0:05ccbd4f84f1 653 HTTPResult HTTPClient::blockingProcess() //Called in blocking mode, calls Net::poll() until return code is available
hendrikvincent 0:05ccbd4f84f1 654 {
hendrikvincent 0:05ccbd4f84f1 655 //Disable callbacks
hendrikvincent 0:05ccbd4f84f1 656 m_pCb = NULL;
hendrikvincent 0:05ccbd4f84f1 657 m_pCbItem = NULL;
hendrikvincent 0:05ccbd4f84f1 658 m_pCbMeth = NULL;
hendrikvincent 0:05ccbd4f84f1 659 m_blockingResult = HTTP_PROCESSING;
hendrikvincent 0:05ccbd4f84f1 660 do
hendrikvincent 0:05ccbd4f84f1 661 {
hendrikvincent 0:05ccbd4f84f1 662 Net::poll();
hendrikvincent 0:05ccbd4f84f1 663 } while(m_blockingResult == HTTP_PROCESSING);
hendrikvincent 0:05ccbd4f84f1 664 Net::poll(); //Necessary for cleanup
hendrikvincent 0:05ccbd4f84f1 665 return m_blockingResult;
hendrikvincent 0:05ccbd4f84f1 666 }
hendrikvincent 0:05ccbd4f84f1 667
hendrikvincent 0:05ccbd4f84f1 668 bool HTTPClient::readHeaders()
hendrikvincent 0:05ccbd4f84f1 669 {
hendrikvincent 0:05ccbd4f84f1 670 static char* line = m_buf;
hendrikvincent 0:05ccbd4f84f1 671 static char key[128];
hendrikvincent 0:05ccbd4f84f1 672 static char value[128];
hendrikvincent 0:05ccbd4f84f1 673 if(!m_dataLen) //No incomplete header in buffer, this is the first time we read data
hendrikvincent 0:05ccbd4f84f1 674 {
hendrikvincent 0:05ccbd4f84f1 675 if( readLine(line, 128) > 0 )
hendrikvincent 0:05ccbd4f84f1 676 {
hendrikvincent 0:05ccbd4f84f1 677 //Check RC
hendrikvincent 0:05ccbd4f84f1 678 m_httpResponseCode = 0;
hendrikvincent 0:05ccbd4f84f1 679 if( sscanf(line, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 )
hendrikvincent 0:05ccbd4f84f1 680 {
hendrikvincent 0:05ccbd4f84f1 681 //Cannot match string, error
hendrikvincent 0:05ccbd4f84f1 682 DBG("Not a correct HTTP answer : %s\n", line);
hendrikvincent 0:05ccbd4f84f1 683 onResult(HTTP_PRTCL);
hendrikvincent 0:05ccbd4f84f1 684 close();
hendrikvincent 0:05ccbd4f84f1 685 return false;
hendrikvincent 0:05ccbd4f84f1 686 }
hendrikvincent 0:05ccbd4f84f1 687
hendrikvincent 0:05ccbd4f84f1 688 if(m_httpResponseCode != 200)
hendrikvincent 0:05ccbd4f84f1 689 {
hendrikvincent 0:05ccbd4f84f1 690 DBG("Response: error code %d\n", m_httpResponseCode);
hendrikvincent 0:05ccbd4f84f1 691 HTTPResult res = HTTP_ERROR;
hendrikvincent 0:05ccbd4f84f1 692 switch(m_httpResponseCode)
hendrikvincent 0:05ccbd4f84f1 693 {
hendrikvincent 0:05ccbd4f84f1 694 case 404:
hendrikvincent 0:05ccbd4f84f1 695 res = HTTP_NOTFOUND;
hendrikvincent 0:05ccbd4f84f1 696 break;
hendrikvincent 0:05ccbd4f84f1 697 case 403:
hendrikvincent 0:05ccbd4f84f1 698 res = HTTP_REFUSED;
hendrikvincent 0:05ccbd4f84f1 699 break;
hendrikvincent 0:05ccbd4f84f1 700 default:
hendrikvincent 0:05ccbd4f84f1 701 res = HTTP_ERROR;
hendrikvincent 0:05ccbd4f84f1 702 }
hendrikvincent 0:05ccbd4f84f1 703 onResult(res);
hendrikvincent 0:05ccbd4f84f1 704 close();
hendrikvincent 0:05ccbd4f84f1 705 return false;
hendrikvincent 0:05ccbd4f84f1 706 }
hendrikvincent 0:05ccbd4f84f1 707 DBG("Response OK\n");
hendrikvincent 0:05ccbd4f84f1 708 }
hendrikvincent 0:05ccbd4f84f1 709 else
hendrikvincent 0:05ccbd4f84f1 710 {
hendrikvincent 0:05ccbd4f84f1 711 //Empty packet, weird!
hendrikvincent 0:05ccbd4f84f1 712 DBG("Empty packet!\n");
hendrikvincent 0:05ccbd4f84f1 713 onResult(HTTP_PRTCL);
hendrikvincent 0:05ccbd4f84f1 714 close();
hendrikvincent 0:05ccbd4f84f1 715 return false;
hendrikvincent 0:05ccbd4f84f1 716 }
hendrikvincent 0:05ccbd4f84f1 717 }
hendrikvincent 0:05ccbd4f84f1 718 bool incomplete = false;
hendrikvincent 0:05ccbd4f84f1 719 while( true )
hendrikvincent 0:05ccbd4f84f1 720 {
hendrikvincent 0:05ccbd4f84f1 721 int readLen = readLine(line + m_dataLen, 128 - m_dataLen, &incomplete);
hendrikvincent 0:05ccbd4f84f1 722 m_dataLen = 0;
hendrikvincent 0:05ccbd4f84f1 723 if( readLen <= 2 ) //if == 1 or 2, it is an empty line = end of headers
hendrikvincent 0:05ccbd4f84f1 724 {
hendrikvincent 0:05ccbd4f84f1 725 DBG("All headers read.\n");
hendrikvincent 0:05ccbd4f84f1 726 m_state = HTTP_READ_DATA;
hendrikvincent 0:05ccbd4f84f1 727 break;
hendrikvincent 0:05ccbd4f84f1 728 }
hendrikvincent 0:05ccbd4f84f1 729 else if( incomplete == true )
hendrikvincent 0:05ccbd4f84f1 730 {
hendrikvincent 0:05ccbd4f84f1 731 m_dataLen = readLen;//Sets data length available in buffer
hendrikvincent 0:05ccbd4f84f1 732 return false;
hendrikvincent 0:05ccbd4f84f1 733 }
hendrikvincent 0:05ccbd4f84f1 734 //DBG("Header : %s\n", line);
hendrikvincent 0:05ccbd4f84f1 735 int n = sscanf(line, "%[^:] : %[^\r\n]", key, value);
hendrikvincent 0:05ccbd4f84f1 736 if ( n == 2 )
hendrikvincent 0:05ccbd4f84f1 737 {
hendrikvincent 0:05ccbd4f84f1 738 DBG("Read header : %s: %s\n", key, value);
hendrikvincent 0:05ccbd4f84f1 739 m_respHeaders[key] = value;
hendrikvincent 0:05ccbd4f84f1 740 }
hendrikvincent 0:05ccbd4f84f1 741 //TODO: Impl n==1 case (part 2 of previous header)
hendrikvincent 0:05ccbd4f84f1 742 }
hendrikvincent 0:05ccbd4f84f1 743
hendrikvincent 0:05ccbd4f84f1 744 return true;
hendrikvincent 0:05ccbd4f84f1 745 }
hendrikvincent 0:05ccbd4f84f1 746
hendrikvincent 0:05ccbd4f84f1 747 bool HTTPClient::writeHeaders() //Called at the first writeData call
hendrikvincent 0:05ccbd4f84f1 748 {
hendrikvincent 0:05ccbd4f84f1 749 static char* line = m_buf;
hendrikvincent 0:05ccbd4f84f1 750 const char* HTTP_METH_STR[] = {"GET", "POST", "HEAD"};
hendrikvincent 0:05ccbd4f84f1 751
hendrikvincent 0:05ccbd4f84f1 752 //Req
hendrikvincent 0:05ccbd4f84f1 753 sprintf(line, "%s %s HTTP/1.1\r\nHost: %s\r\n", HTTP_METH_STR[m_meth], m_path.c_str(), m_server.getName()); //Write request
hendrikvincent 0:05ccbd4f84f1 754 m_pTCPSocket->send(line, strlen(line));
hendrikvincent 0:05ccbd4f84f1 755 DBG("Request: %s\n", line);
hendrikvincent 0:05ccbd4f84f1 756
hendrikvincent 0:05ccbd4f84f1 757 DBG("Writing headers:\n");
hendrikvincent 0:05ccbd4f84f1 758 map<string,string>::iterator it;
hendrikvincent 0:05ccbd4f84f1 759 for( it = m_reqHeaders.begin(); it != m_reqHeaders.end(); it++ )
hendrikvincent 0:05ccbd4f84f1 760 {
hendrikvincent 0:05ccbd4f84f1 761 sprintf(line, "%s: %s\r\n", (*it).first.c_str(), (*it).second.c_str() );
hendrikvincent 0:05ccbd4f84f1 762 DBG("\r\n%s", line);
hendrikvincent 0:05ccbd4f84f1 763 m_pTCPSocket->send(line, strlen(line));
hendrikvincent 0:05ccbd4f84f1 764 }
hendrikvincent 0:05ccbd4f84f1 765 m_pTCPSocket->send("\r\n",2); //End of head
hendrikvincent 0:05ccbd4f84f1 766 m_state = HTTP_WRITE_DATA;
hendrikvincent 0:05ccbd4f84f1 767 return true;
hendrikvincent 0:05ccbd4f84f1 768 }
hendrikvincent 0:05ccbd4f84f1 769
hendrikvincent 0:05ccbd4f84f1 770 int HTTPClient::readLine(char* str, int maxLen, bool* pIncomplete /* = NULL*/)
hendrikvincent 0:05ccbd4f84f1 771 {
hendrikvincent 0:05ccbd4f84f1 772 int ret;
hendrikvincent 0:05ccbd4f84f1 773 int len = 0;
hendrikvincent 0:05ccbd4f84f1 774 if(pIncomplete)
hendrikvincent 0:05ccbd4f84f1 775 *pIncomplete = false;
hendrikvincent 0:05ccbd4f84f1 776 for(int i = 0; i < maxLen - 1; i++)
hendrikvincent 0:05ccbd4f84f1 777 {
hendrikvincent 0:05ccbd4f84f1 778 ret = m_pTCPSocket->recv(str, 1);
hendrikvincent 0:05ccbd4f84f1 779 if(ret != 1)
hendrikvincent 0:05ccbd4f84f1 780 {
hendrikvincent 0:05ccbd4f84f1 781 if(pIncomplete)
hendrikvincent 0:05ccbd4f84f1 782 *pIncomplete = true;
hendrikvincent 0:05ccbd4f84f1 783 break;
hendrikvincent 0:05ccbd4f84f1 784 }
hendrikvincent 0:05ccbd4f84f1 785 if( (len > 1) && *(str-1)=='\r' && *str=='\n' )
hendrikvincent 0:05ccbd4f84f1 786 {
hendrikvincent 0:05ccbd4f84f1 787 break;
hendrikvincent 0:05ccbd4f84f1 788 }
hendrikvincent 0:05ccbd4f84f1 789 else if( *str=='\n' )
hendrikvincent 0:05ccbd4f84f1 790 {
hendrikvincent 0:05ccbd4f84f1 791 break;
hendrikvincent 0:05ccbd4f84f1 792 }
hendrikvincent 0:05ccbd4f84f1 793 str++;
hendrikvincent 0:05ccbd4f84f1 794 len++;
hendrikvincent 0:05ccbd4f84f1 795 }
hendrikvincent 0:05ccbd4f84f1 796 *str = 0;
hendrikvincent 0:05ccbd4f84f1 797 return len;
hendrikvincent 0:05ccbd4f84f1 798 }