Customized HTTPClient
Fork of HTTPClient by
HTTPClient.cpp@9:ff30cc189191, 2012-07-11 (annotated)
- Committer:
- donatien
- Date:
- Wed Jul 11 21:25:29 2012 +0000
- Revision:
- 9:ff30cc189191
- Parent:
- 8:45c8da29a1cf
- Child:
- 10:e1351de84c16
Decreased stack size use
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
donatien | 0:2ccb9960a044 | 1 | /* HTTPClient.cpp */ |
donatien | 0:2ccb9960a044 | 2 | /* |
donatien | 0:2ccb9960a044 | 3 | Copyright (C) 2012 ARM Limited. |
donatien | 0:2ccb9960a044 | 4 | |
donatien | 0:2ccb9960a044 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy of |
donatien | 0:2ccb9960a044 | 6 | this software and associated documentation files (the "Software"), to deal in |
donatien | 0:2ccb9960a044 | 7 | the Software without restriction, including without limitation the rights to |
donatien | 0:2ccb9960a044 | 8 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies |
donatien | 0:2ccb9960a044 | 9 | of the Software, and to permit persons to whom the Software is furnished to do |
donatien | 0:2ccb9960a044 | 10 | so, subject to the following conditions: |
donatien | 0:2ccb9960a044 | 11 | |
donatien | 0:2ccb9960a044 | 12 | The above copyright notice and this permission notice shall be included in all |
donatien | 0:2ccb9960a044 | 13 | copies or substantial portions of the Software. |
donatien | 0:2ccb9960a044 | 14 | |
donatien | 0:2ccb9960a044 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
donatien | 0:2ccb9960a044 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
donatien | 0:2ccb9960a044 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
donatien | 0:2ccb9960a044 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
donatien | 0:2ccb9960a044 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
donatien | 0:2ccb9960a044 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
donatien | 0:2ccb9960a044 | 21 | SOFTWARE. |
donatien | 0:2ccb9960a044 | 22 | */ |
donatien | 0:2ccb9960a044 | 23 | |
donatien | 7:4e39864f7b15 | 24 | //Debug is disabled by default |
donatien | 7:4e39864f7b15 | 25 | #if 0 |
donatien | 0:2ccb9960a044 | 26 | #define __DEBUG__ 4 //Maximum verbosity |
donatien | 0:2ccb9960a044 | 27 | #ifndef __MODULE__ |
donatien | 0:2ccb9960a044 | 28 | #define __MODULE__ "HTTPClient.cpp" |
donatien | 0:2ccb9960a044 | 29 | #endif |
donatien | 7:4e39864f7b15 | 30 | #else |
donatien | 7:4e39864f7b15 | 31 | #define __DEBUG__ 0 //Disabled |
donatien | 7:4e39864f7b15 | 32 | #endif |
donatien | 0:2ccb9960a044 | 33 | |
donatien | 0:2ccb9960a044 | 34 | #include "core/fwk.h" |
donatien | 0:2ccb9960a044 | 35 | |
donatien | 0:2ccb9960a044 | 36 | #include "HTTPClient.h" |
donatien | 0:2ccb9960a044 | 37 | |
donatien | 0:2ccb9960a044 | 38 | #define HTTP_REQUEST_TIMEOUT 30000 |
donatien | 0:2ccb9960a044 | 39 | #define HTTP_PORT 80 |
donatien | 0:2ccb9960a044 | 40 | |
donatien | 0:2ccb9960a044 | 41 | #define CHUNK_SIZE 256 |
donatien | 0:2ccb9960a044 | 42 | |
donatien | 0:2ccb9960a044 | 43 | #include <cstring> |
donatien | 0:2ccb9960a044 | 44 | |
donatien | 0:2ccb9960a044 | 45 | HTTPClient::HTTPClient() : |
donatien | 7:4e39864f7b15 | 46 | m_sock(), m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0) |
donatien | 0:2ccb9960a044 | 47 | { |
donatien | 0:2ccb9960a044 | 48 | |
donatien | 0:2ccb9960a044 | 49 | } |
donatien | 0:2ccb9960a044 | 50 | |
donatien | 0:2ccb9960a044 | 51 | HTTPClient::~HTTPClient() |
donatien | 0:2ccb9960a044 | 52 | { |
donatien | 0:2ccb9960a044 | 53 | |
donatien | 0:2ccb9960a044 | 54 | } |
donatien | 0:2ccb9960a044 | 55 | |
donatien | 0:2ccb9960a044 | 56 | #if 0 |
donatien | 0:2ccb9960a044 | 57 | void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification |
donatien | 0:2ccb9960a044 | 58 | { |
donatien | 0:2ccb9960a044 | 59 | m_basicAuthUser = user; |
donatien | 0:2ccb9960a044 | 60 | m_basicAuthPassword = password; |
donatien | 0:2ccb9960a044 | 61 | } |
donatien | 0:2ccb9960a044 | 62 | #endif |
donatien | 0:2ccb9960a044 | 63 | |
donatien | 0:2ccb9960a044 | 64 | int HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 65 | { |
donatien | 0:2ccb9960a044 | 66 | return connect(url, HTTP_GET, NULL, pDataIn, timeout); |
donatien | 0:2ccb9960a044 | 67 | } |
donatien | 0:2ccb9960a044 | 68 | |
donatien | 0:2ccb9960a044 | 69 | int HTTPClient::get(const char* url, char* result, size_t maxResultLen, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 70 | { |
donatien | 0:2ccb9960a044 | 71 | HTTPText str(result, maxResultLen); |
donatien | 0:2ccb9960a044 | 72 | return get(url, &str, timeout); |
donatien | 0:2ccb9960a044 | 73 | } |
donatien | 0:2ccb9960a044 | 74 | |
donatien | 0:2ccb9960a044 | 75 | int HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 76 | { |
donatien | 0:2ccb9960a044 | 77 | return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout); |
donatien | 0:2ccb9960a044 | 78 | } |
donatien | 0:2ccb9960a044 | 79 | |
donatien | 0:2ccb9960a044 | 80 | int HTTPClient::getHTTPResponseCode() |
donatien | 0:2ccb9960a044 | 81 | { |
donatien | 0:2ccb9960a044 | 82 | return m_httpResponseCode; |
donatien | 0:2ccb9960a044 | 83 | } |
donatien | 0:2ccb9960a044 | 84 | |
donatien | 5:791fc3dcb6c4 | 85 | #define CHECK_CONN_ERR(ret) \ |
donatien | 5:791fc3dcb6c4 | 86 | do{ \ |
donatien | 7:4e39864f7b15 | 87 | if(ret) { \ |
donatien | 7:4e39864f7b15 | 88 | m_sock.close(); \ |
donatien | 5:791fc3dcb6c4 | 89 | ERR("Connection error (%d)", ret); \ |
donatien | 5:791fc3dcb6c4 | 90 | return NET_CONN; \ |
donatien | 5:791fc3dcb6c4 | 91 | } \ |
donatien | 5:791fc3dcb6c4 | 92 | } while(0) |
donatien | 5:791fc3dcb6c4 | 93 | |
donatien | 5:791fc3dcb6c4 | 94 | #define PRTCL_ERR() \ |
donatien | 5:791fc3dcb6c4 | 95 | do{ \ |
donatien | 7:4e39864f7b15 | 96 | m_sock.close(); \ |
donatien | 5:791fc3dcb6c4 | 97 | ERR("Protocol error"); \ |
donatien | 5:791fc3dcb6c4 | 98 | return NET_PROTOCOL; \ |
donatien | 5:791fc3dcb6c4 | 99 | } while(0) |
donatien | 0:2ccb9960a044 | 100 | |
donatien | 0:2ccb9960a044 | 101 | int HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, uint32_t timeout) //Execute request |
donatien | 0:2ccb9960a044 | 102 | { |
donatien | 0:2ccb9960a044 | 103 | m_httpResponseCode = 0; //Invalidate code |
donatien | 0:2ccb9960a044 | 104 | m_timeout = timeout; |
donatien | 0:2ccb9960a044 | 105 | |
donatien | 0:2ccb9960a044 | 106 | char scheme[8]; |
donatien | 0:2ccb9960a044 | 107 | uint16_t port; |
donatien | 0:2ccb9960a044 | 108 | char host[32]; |
donatien | 0:2ccb9960a044 | 109 | char path[64]; |
donatien | 0:2ccb9960a044 | 110 | //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?) |
donatien | 0:2ccb9960a044 | 111 | int ret = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path)); |
donatien | 7:4e39864f7b15 | 112 | if(ret) |
donatien | 0:2ccb9960a044 | 113 | { |
donatien | 0:2ccb9960a044 | 114 | ERR("parseURL returned %d", ret); |
donatien | 0:2ccb9960a044 | 115 | return ret; |
donatien | 0:2ccb9960a044 | 116 | } |
donatien | 0:2ccb9960a044 | 117 | |
donatien | 0:2ccb9960a044 | 118 | if(port == 0) //TODO do handle HTTPS->443 |
donatien | 0:2ccb9960a044 | 119 | { |
donatien | 0:2ccb9960a044 | 120 | port = 80; |
donatien | 0:2ccb9960a044 | 121 | } |
donatien | 0:2ccb9960a044 | 122 | |
donatien | 0:2ccb9960a044 | 123 | DBG("Scheme: %s", scheme); |
donatien | 0:2ccb9960a044 | 124 | DBG("Host: %s", host); |
donatien | 0:2ccb9960a044 | 125 | DBG("Port: %d", port); |
donatien | 0:2ccb9960a044 | 126 | DBG("Path: %s", path); |
donatien | 0:2ccb9960a044 | 127 | |
donatien | 7:4e39864f7b15 | 128 | //Connect |
donatien | 7:4e39864f7b15 | 129 | DBG("Connecting socket to server"); |
donatien | 7:4e39864f7b15 | 130 | ret = m_sock.connect(host, port); |
donatien | 0:2ccb9960a044 | 131 | if (ret < 0) |
donatien | 0:2ccb9960a044 | 132 | { |
donatien | 7:4e39864f7b15 | 133 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 134 | ERR("Could not connect"); |
donatien | 0:2ccb9960a044 | 135 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 136 | } |
donatien | 0:2ccb9960a044 | 137 | |
donatien | 0:2ccb9960a044 | 138 | //Send request |
donatien | 0:2ccb9960a044 | 139 | DBG("Sending request"); |
donatien | 9:ff30cc189191 | 140 | char buf[CHUNK_SIZE]; |
donatien | 0:2ccb9960a044 | 141 | const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":""; |
donatien | 9:ff30cc189191 | 142 | snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request |
donatien | 9:ff30cc189191 | 143 | ret = send(buf); |
donatien | 0:2ccb9960a044 | 144 | if(ret) |
donatien | 0:2ccb9960a044 | 145 | { |
donatien | 7:4e39864f7b15 | 146 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 147 | ERR("Could not write request"); |
donatien | 0:2ccb9960a044 | 148 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 149 | } |
donatien | 0:2ccb9960a044 | 150 | |
donatien | 0:2ccb9960a044 | 151 | //Send all headers |
donatien | 0:2ccb9960a044 | 152 | |
donatien | 0:2ccb9960a044 | 153 | //Send default headers |
donatien | 0:2ccb9960a044 | 154 | DBG("Sending headers"); |
donatien | 0:2ccb9960a044 | 155 | if( (method == HTTP_POST) && (pDataOut != NULL) ) |
donatien | 0:2ccb9960a044 | 156 | { |
donatien | 0:2ccb9960a044 | 157 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 158 | { |
donatien | 0:2ccb9960a044 | 159 | ret = send("Transfer-Encoding: chunked\r\n"); |
donatien | 5:791fc3dcb6c4 | 160 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 161 | } |
donatien | 0:2ccb9960a044 | 162 | else |
donatien | 0:2ccb9960a044 | 163 | { |
donatien | 9:ff30cc189191 | 164 | snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen()); |
donatien | 9:ff30cc189191 | 165 | ret = send(buf); |
donatien | 5:791fc3dcb6c4 | 166 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 167 | } |
donatien | 0:2ccb9960a044 | 168 | char type[48]; |
donatien | 0:2ccb9960a044 | 169 | if( pDataOut->getDataType(type, 48) == OK ) |
donatien | 0:2ccb9960a044 | 170 | { |
donatien | 9:ff30cc189191 | 171 | snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type); |
donatien | 9:ff30cc189191 | 172 | ret = send(buf); |
donatien | 5:791fc3dcb6c4 | 173 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 174 | } |
donatien | 0:2ccb9960a044 | 175 | } |
donatien | 9:ff30cc189191 | 176 | |
donatien | 0:2ccb9960a044 | 177 | //Close headers |
donatien | 0:2ccb9960a044 | 178 | DBG("Headers sent"); |
donatien | 0:2ccb9960a044 | 179 | ret = send("\r\n"); |
donatien | 5:791fc3dcb6c4 | 180 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 181 | |
donatien | 4:c071b05ac026 | 182 | size_t trfLen; |
donatien | 9:ff30cc189191 | 183 | |
donatien | 0:2ccb9960a044 | 184 | //Send data (if POST) |
donatien | 0:2ccb9960a044 | 185 | if( (method == HTTP_POST) && (pDataOut != NULL) ) |
donatien | 0:2ccb9960a044 | 186 | { |
donatien | 0:2ccb9960a044 | 187 | DBG("Sending data"); |
donatien | 0:2ccb9960a044 | 188 | while(true) |
donatien | 0:2ccb9960a044 | 189 | { |
donatien | 0:2ccb9960a044 | 190 | size_t writtenLen = 0; |
donatien | 0:2ccb9960a044 | 191 | pDataOut->read(buf, CHUNK_SIZE, &trfLen); |
donatien | 0:2ccb9960a044 | 192 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 193 | { |
donatien | 0:2ccb9960a044 | 194 | //Write chunk header |
donatien | 9:ff30cc189191 | 195 | char chunkHeader[16]; |
donatien | 9:ff30cc189191 | 196 | snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding |
donatien | 9:ff30cc189191 | 197 | ret = send(chunkHeader); |
donatien | 5:791fc3dcb6c4 | 198 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 199 | } |
donatien | 0:2ccb9960a044 | 200 | else if( trfLen == 0 ) |
donatien | 0:2ccb9960a044 | 201 | { |
donatien | 0:2ccb9960a044 | 202 | break; |
donatien | 0:2ccb9960a044 | 203 | } |
donatien | 0:2ccb9960a044 | 204 | if( trfLen != 0 ) |
donatien | 0:2ccb9960a044 | 205 | { |
donatien | 0:2ccb9960a044 | 206 | ret = send(buf, trfLen); |
donatien | 5:791fc3dcb6c4 | 207 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 208 | } |
donatien | 0:2ccb9960a044 | 209 | |
donatien | 0:2ccb9960a044 | 210 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 211 | { |
donatien | 0:2ccb9960a044 | 212 | ret = send("\r\n"); //Chunk-terminating CRLF |
donatien | 5:791fc3dcb6c4 | 213 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 214 | } |
donatien | 0:2ccb9960a044 | 215 | else |
donatien | 0:2ccb9960a044 | 216 | { |
donatien | 0:2ccb9960a044 | 217 | writtenLen += trfLen; |
donatien | 0:2ccb9960a044 | 218 | if( writtenLen >= pDataOut->getDataLen() ) |
donatien | 0:2ccb9960a044 | 219 | { |
donatien | 0:2ccb9960a044 | 220 | break; |
donatien | 0:2ccb9960a044 | 221 | } |
donatien | 0:2ccb9960a044 | 222 | } |
donatien | 0:2ccb9960a044 | 223 | |
donatien | 0:2ccb9960a044 | 224 | if( trfLen == 0 ) |
donatien | 0:2ccb9960a044 | 225 | { |
donatien | 0:2ccb9960a044 | 226 | break; |
donatien | 0:2ccb9960a044 | 227 | } |
donatien | 0:2ccb9960a044 | 228 | } |
donatien | 0:2ccb9960a044 | 229 | |
donatien | 0:2ccb9960a044 | 230 | } |
donatien | 9:ff30cc189191 | 231 | |
donatien | 0:2ccb9960a044 | 232 | //Receive response |
donatien | 0:2ccb9960a044 | 233 | DBG("Receiving response"); |
donatien | 4:c071b05ac026 | 234 | ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes |
donatien | 5:791fc3dcb6c4 | 235 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 236 | |
donatien | 0:2ccb9960a044 | 237 | buf[trfLen] = '\0'; |
donatien | 0:2ccb9960a044 | 238 | |
donatien | 0:2ccb9960a044 | 239 | char* crlfPtr = strstr(buf, "\r\n"); |
donatien | 0:2ccb9960a044 | 240 | if(crlfPtr == NULL) |
donatien | 0:2ccb9960a044 | 241 | { |
donatien | 5:791fc3dcb6c4 | 242 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 243 | } |
donatien | 0:2ccb9960a044 | 244 | |
donatien | 4:c071b05ac026 | 245 | int crlfPos = crlfPtr - buf; |
donatien | 0:2ccb9960a044 | 246 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 247 | |
donatien | 0:2ccb9960a044 | 248 | //Parse HTTP response |
donatien | 0:2ccb9960a044 | 249 | if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 ) |
donatien | 0:2ccb9960a044 | 250 | { |
donatien | 0:2ccb9960a044 | 251 | //Cannot match string, error |
donatien | 0:2ccb9960a044 | 252 | ERR("Not a correct HTTP answer : %s\n", buf); |
donatien | 5:791fc3dcb6c4 | 253 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 254 | } |
donatien | 0:2ccb9960a044 | 255 | |
donatien | 0:2ccb9960a044 | 256 | if(m_httpResponseCode != 200) |
donatien | 0:2ccb9960a044 | 257 | { |
donatien | 0:2ccb9960a044 | 258 | //Cannot match string, error |
donatien | 0:2ccb9960a044 | 259 | WARN("Response code %d", m_httpResponseCode); |
donatien | 5:791fc3dcb6c4 | 260 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 261 | } |
donatien | 0:2ccb9960a044 | 262 | |
donatien | 0:2ccb9960a044 | 263 | DBG("Reading headers"); |
donatien | 0:2ccb9960a044 | 264 | |
donatien | 4:c071b05ac026 | 265 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 266 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 267 | |
donatien | 4:c071b05ac026 | 268 | size_t recvContentLength = 0; |
donatien | 4:c071b05ac026 | 269 | bool recvChunked = false; |
donatien | 0:2ccb9960a044 | 270 | //Now get headers |
donatien | 0:2ccb9960a044 | 271 | while( true ) |
donatien | 0:2ccb9960a044 | 272 | { |
donatien | 0:2ccb9960a044 | 273 | crlfPtr = strstr(buf, "\r\n"); |
donatien | 0:2ccb9960a044 | 274 | if(crlfPtr == NULL) |
donatien | 0:2ccb9960a044 | 275 | { |
donatien | 4:c071b05ac026 | 276 | if( trfLen < CHUNK_SIZE - 1 ) |
donatien | 0:2ccb9960a044 | 277 | { |
donatien | 0:2ccb9960a044 | 278 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 279 | ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen); |
donatien | 0:2ccb9960a044 | 280 | trfLen += newTrfLen; |
donatien | 0:2ccb9960a044 | 281 | buf[trfLen] = '\0'; |
donatien | 4:c071b05ac026 | 282 | DBG("Read %d chars; In buf: [%s]", newTrfLen, buf); |
donatien | 5:791fc3dcb6c4 | 283 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 284 | continue; |
donatien | 0:2ccb9960a044 | 285 | } |
donatien | 0:2ccb9960a044 | 286 | else |
donatien | 0:2ccb9960a044 | 287 | { |
donatien | 5:791fc3dcb6c4 | 288 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 289 | } |
donatien | 0:2ccb9960a044 | 290 | } |
donatien | 0:2ccb9960a044 | 291 | |
donatien | 0:2ccb9960a044 | 292 | crlfPos = crlfPtr - buf; |
donatien | 0:2ccb9960a044 | 293 | |
donatien | 0:2ccb9960a044 | 294 | if(crlfPos == 0) //End of headers |
donatien | 0:2ccb9960a044 | 295 | { |
donatien | 0:2ccb9960a044 | 296 | DBG("Headers read"); |
donatien | 4:c071b05ac026 | 297 | memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 298 | trfLen -= 2; |
donatien | 0:2ccb9960a044 | 299 | break; |
donatien | 0:2ccb9960a044 | 300 | } |
donatien | 0:2ccb9960a044 | 301 | |
donatien | 0:2ccb9960a044 | 302 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 303 | |
donatien | 4:c071b05ac026 | 304 | char key[32]; |
donatien | 4:c071b05ac026 | 305 | char value[32]; |
donatien | 0:2ccb9960a044 | 306 | |
donatien | 4:c071b05ac026 | 307 | key[31] = '\0'; |
donatien | 4:c071b05ac026 | 308 | value[31] = '\0'; |
donatien | 4:c071b05ac026 | 309 | |
donatien | 4:c071b05ac026 | 310 | int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value); |
donatien | 0:2ccb9960a044 | 311 | if ( n == 2 ) |
donatien | 0:2ccb9960a044 | 312 | { |
donatien | 0:2ccb9960a044 | 313 | DBG("Read header : %s: %s\n", key, value); |
donatien | 0:2ccb9960a044 | 314 | if( !strcmp(key, "Content-Length") ) |
donatien | 0:2ccb9960a044 | 315 | { |
donatien | 0:2ccb9960a044 | 316 | sscanf(value, "%d", &recvContentLength); |
donatien | 0:2ccb9960a044 | 317 | pDataIn->setDataLen(recvContentLength); |
donatien | 0:2ccb9960a044 | 318 | } |
donatien | 0:2ccb9960a044 | 319 | else if( !strcmp(key, "Transfer-Encoding") ) |
donatien | 0:2ccb9960a044 | 320 | { |
donatien | 0:2ccb9960a044 | 321 | if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") ) |
donatien | 0:2ccb9960a044 | 322 | { |
donatien | 0:2ccb9960a044 | 323 | recvChunked = true; |
donatien | 0:2ccb9960a044 | 324 | pDataIn->setIsChunked(true); |
donatien | 0:2ccb9960a044 | 325 | } |
donatien | 0:2ccb9960a044 | 326 | } |
donatien | 0:2ccb9960a044 | 327 | else if( !strcmp(key, "Content-Type") ) |
donatien | 0:2ccb9960a044 | 328 | { |
donatien | 0:2ccb9960a044 | 329 | pDataIn->setDataType(value); |
donatien | 0:2ccb9960a044 | 330 | } |
donatien | 0:2ccb9960a044 | 331 | |
donatien | 4:c071b05ac026 | 332 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 333 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 334 | |
donatien | 0:2ccb9960a044 | 335 | } |
donatien | 0:2ccb9960a044 | 336 | else |
donatien | 0:2ccb9960a044 | 337 | { |
donatien | 0:2ccb9960a044 | 338 | ERR("Could not parse header"); |
donatien | 5:791fc3dcb6c4 | 339 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 340 | } |
donatien | 0:2ccb9960a044 | 341 | |
donatien | 0:2ccb9960a044 | 342 | } |
donatien | 0:2ccb9960a044 | 343 | |
donatien | 0:2ccb9960a044 | 344 | //Receive data |
donatien | 0:2ccb9960a044 | 345 | DBG("Receiving data"); |
donatien | 0:2ccb9960a044 | 346 | while(true) |
donatien | 0:2ccb9960a044 | 347 | { |
donatien | 0:2ccb9960a044 | 348 | size_t readLen = 0; |
donatien | 0:2ccb9960a044 | 349 | |
donatien | 0:2ccb9960a044 | 350 | if( recvChunked ) |
donatien | 0:2ccb9960a044 | 351 | { |
donatien | 0:2ccb9960a044 | 352 | //Read chunk header |
donatien | 0:2ccb9960a044 | 353 | crlfPos=0; |
donatien | 0:2ccb9960a044 | 354 | for(crlfPos++; crlfPos < trfLen - 2; crlfPos++) |
donatien | 0:2ccb9960a044 | 355 | { |
donatien | 0:2ccb9960a044 | 356 | if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' ) |
donatien | 0:2ccb9960a044 | 357 | { |
donatien | 0:2ccb9960a044 | 358 | break; |
donatien | 0:2ccb9960a044 | 359 | } |
donatien | 0:2ccb9960a044 | 360 | } |
donatien | 0:2ccb9960a044 | 361 | if(crlfPos >= trfLen - 2) //Try to read more |
donatien | 0:2ccb9960a044 | 362 | { |
donatien | 0:2ccb9960a044 | 363 | if( trfLen < CHUNK_SIZE ) |
donatien | 0:2ccb9960a044 | 364 | { |
donatien | 0:2ccb9960a044 | 365 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 366 | ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen); |
donatien | 0:2ccb9960a044 | 367 | trfLen += newTrfLen; |
donatien | 5:791fc3dcb6c4 | 368 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 369 | continue; |
donatien | 0:2ccb9960a044 | 370 | } |
donatien | 0:2ccb9960a044 | 371 | else |
donatien | 0:2ccb9960a044 | 372 | { |
donatien | 5:791fc3dcb6c4 | 373 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 374 | } |
donatien | 0:2ccb9960a044 | 375 | } |
donatien | 0:2ccb9960a044 | 376 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 377 | int n = sscanf(buf, "%x", &readLen); |
donatien | 0:2ccb9960a044 | 378 | if(n!=1) |
donatien | 0:2ccb9960a044 | 379 | { |
donatien | 0:2ccb9960a044 | 380 | ERR("Could not read chunk length"); |
donatien | 5:791fc3dcb6c4 | 381 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 382 | } |
donatien | 0:2ccb9960a044 | 383 | |
donatien | 4:c071b05ac026 | 384 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more |
donatien | 0:2ccb9960a044 | 385 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 386 | |
donatien | 0:2ccb9960a044 | 387 | if( readLen == 0 ) |
donatien | 0:2ccb9960a044 | 388 | { |
donatien | 0:2ccb9960a044 | 389 | //Last chunk |
donatien | 0:2ccb9960a044 | 390 | break; |
donatien | 0:2ccb9960a044 | 391 | } |
donatien | 0:2ccb9960a044 | 392 | } |
donatien | 0:2ccb9960a044 | 393 | else |
donatien | 0:2ccb9960a044 | 394 | { |
donatien | 0:2ccb9960a044 | 395 | readLen = recvContentLength; |
donatien | 0:2ccb9960a044 | 396 | } |
donatien | 0:2ccb9960a044 | 397 | |
donatien | 0:2ccb9960a044 | 398 | DBG("Retrieving %d bytes", readLen); |
donatien | 0:2ccb9960a044 | 399 | |
donatien | 0:2ccb9960a044 | 400 | do |
donatien | 0:2ccb9960a044 | 401 | { |
donatien | 0:2ccb9960a044 | 402 | pDataIn->write(buf, MIN(trfLen, readLen)); |
donatien | 0:2ccb9960a044 | 403 | if( trfLen > readLen ) |
donatien | 0:2ccb9960a044 | 404 | { |
donatien | 0:2ccb9960a044 | 405 | memmove(buf, &buf[readLen], trfLen - readLen); |
donatien | 0:2ccb9960a044 | 406 | trfLen -= readLen; |
donatien | 0:2ccb9960a044 | 407 | readLen = 0; |
donatien | 0:2ccb9960a044 | 408 | } |
donatien | 0:2ccb9960a044 | 409 | else |
donatien | 0:2ccb9960a044 | 410 | { |
donatien | 0:2ccb9960a044 | 411 | readLen -= trfLen; |
donatien | 0:2ccb9960a044 | 412 | } |
donatien | 0:2ccb9960a044 | 413 | |
donatien | 0:2ccb9960a044 | 414 | if(readLen) |
donatien | 0:2ccb9960a044 | 415 | { |
donatien | 0:2ccb9960a044 | 416 | ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen); |
donatien | 5:791fc3dcb6c4 | 417 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 418 | } |
donatien | 0:2ccb9960a044 | 419 | } while(readLen); |
donatien | 0:2ccb9960a044 | 420 | |
donatien | 0:2ccb9960a044 | 421 | if( recvChunked ) |
donatien | 0:2ccb9960a044 | 422 | { |
donatien | 0:2ccb9960a044 | 423 | if(trfLen < 2) |
donatien | 0:2ccb9960a044 | 424 | { |
donatien | 0:2ccb9960a044 | 425 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 426 | //Read missing chars to find end of chunk |
donatien | 0:2ccb9960a044 | 427 | ret = recv(buf, 2 - trfLen, CHUNK_SIZE, &newTrfLen); |
donatien | 5:791fc3dcb6c4 | 428 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 429 | trfLen += newTrfLen; |
donatien | 0:2ccb9960a044 | 430 | } |
donatien | 0:2ccb9960a044 | 431 | if( (buf[0] != '\r') || (buf[1] != '\n') ) |
donatien | 0:2ccb9960a044 | 432 | { |
donatien | 0:2ccb9960a044 | 433 | ERR("Format error"); |
donatien | 5:791fc3dcb6c4 | 434 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 435 | } |
donatien | 0:2ccb9960a044 | 436 | memmove(buf, &buf[2], trfLen - 2); |
donatien | 0:2ccb9960a044 | 437 | trfLen -= 2; |
donatien | 0:2ccb9960a044 | 438 | } |
donatien | 0:2ccb9960a044 | 439 | else |
donatien | 0:2ccb9960a044 | 440 | { |
donatien | 0:2ccb9960a044 | 441 | break; |
donatien | 0:2ccb9960a044 | 442 | } |
donatien | 0:2ccb9960a044 | 443 | |
donatien | 0:2ccb9960a044 | 444 | } |
donatien | 0:2ccb9960a044 | 445 | |
donatien | 7:4e39864f7b15 | 446 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 447 | DBG("Completed HTTP transaction"); |
donatien | 0:2ccb9960a044 | 448 | |
donatien | 0:2ccb9960a044 | 449 | return OK; |
donatien | 0:2ccb9960a044 | 450 | } |
donatien | 0:2ccb9960a044 | 451 | |
donatien | 0:2ccb9960a044 | 452 | int HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure |
donatien | 0:2ccb9960a044 | 453 | { |
donatien | 0:2ccb9960a044 | 454 | DBG("Trying to read between %d and %d bytes", minLen, maxLen); |
donatien | 0:2ccb9960a044 | 455 | size_t readLen = 0; |
donatien | 7:4e39864f7b15 | 456 | |
donatien | 7:4e39864f7b15 | 457 | int ret; |
donatien | 7:4e39864f7b15 | 458 | while(readLen < maxLen) |
donatien | 0:2ccb9960a044 | 459 | { |
donatien | 7:4e39864f7b15 | 460 | if(readLen < minLen) |
donatien | 0:2ccb9960a044 | 461 | { |
donatien | 7:4e39864f7b15 | 462 | ret = m_sock.receive(buf + readLen, minLen - readLen, m_timeout); |
donatien | 0:2ccb9960a044 | 463 | } |
donatien | 7:4e39864f7b15 | 464 | else |
donatien | 7:4e39864f7b15 | 465 | { |
donatien | 7:4e39864f7b15 | 466 | ret = m_sock.receive(buf + readLen, maxLen - readLen, 0); |
donatien | 7:4e39864f7b15 | 467 | } |
donatien | 7:4e39864f7b15 | 468 | |
donatien | 0:2ccb9960a044 | 469 | if( ret > 0) |
donatien | 0:2ccb9960a044 | 470 | { |
donatien | 0:2ccb9960a044 | 471 | readLen += ret; |
donatien | 0:2ccb9960a044 | 472 | continue; |
donatien | 0:2ccb9960a044 | 473 | } |
donatien | 0:2ccb9960a044 | 474 | else if( ret == 0 ) |
donatien | 0:2ccb9960a044 | 475 | { |
donatien | 7:4e39864f7b15 | 476 | break; |
donatien | 7:4e39864f7b15 | 477 | } |
donatien | 7:4e39864f7b15 | 478 | else |
donatien | 7:4e39864f7b15 | 479 | { |
donatien | 7:4e39864f7b15 | 480 | ERR("Connection error (recv returned %d)", ret); |
donatien | 7:4e39864f7b15 | 481 | *pReadLen = readLen; |
donatien | 7:4e39864f7b15 | 482 | return NET_CONN; |
donatien | 7:4e39864f7b15 | 483 | } |
donatien | 7:4e39864f7b15 | 484 | } |
donatien | 7:4e39864f7b15 | 485 | DBG("Read %d bytes", readLen); |
donatien | 7:4e39864f7b15 | 486 | *pReadLen = readLen; |
donatien | 7:4e39864f7b15 | 487 | return OK; |
donatien | 7:4e39864f7b15 | 488 | } |
donatien | 7:4e39864f7b15 | 489 | |
donatien | 7:4e39864f7b15 | 490 | int HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure |
donatien | 7:4e39864f7b15 | 491 | { |
donatien | 7:4e39864f7b15 | 492 | if(len == 0) |
donatien | 7:4e39864f7b15 | 493 | { |
donatien | 7:4e39864f7b15 | 494 | len = strlen(buf); |
donatien | 7:4e39864f7b15 | 495 | } |
donatien | 7:4e39864f7b15 | 496 | DBG("Trying to write %d bytes", len); |
donatien | 7:4e39864f7b15 | 497 | size_t writtenLen = 0; |
donatien | 7:4e39864f7b15 | 498 | |
donatien | 7:4e39864f7b15 | 499 | int ret; |
donatien | 7:4e39864f7b15 | 500 | do |
donatien | 7:4e39864f7b15 | 501 | { |
donatien | 7:4e39864f7b15 | 502 | ret = m_sock.send(buf + writtenLen, len - writtenLen, m_timeout); |
donatien | 7:4e39864f7b15 | 503 | if(ret > 0) |
donatien | 7:4e39864f7b15 | 504 | { |
donatien | 7:4e39864f7b15 | 505 | writtenLen += ret; |
donatien | 7:4e39864f7b15 | 506 | } |
donatien | 7:4e39864f7b15 | 507 | else if( ret == 0 ) |
donatien | 7:4e39864f7b15 | 508 | { |
donatien | 0:2ccb9960a044 | 509 | WARN("Connection was closed by server"); |
donatien | 0:2ccb9960a044 | 510 | return NET_CLOSED; //Connection was closed by server |
donatien | 0:2ccb9960a044 | 511 | } |
donatien | 0:2ccb9960a044 | 512 | else |
donatien | 0:2ccb9960a044 | 513 | { |
donatien | 0:2ccb9960a044 | 514 | ERR("Connection error (recv returned %d)", ret); |
donatien | 0:2ccb9960a044 | 515 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 516 | } |
donatien | 7:4e39864f7b15 | 517 | } while(writtenLen < len); |
donatien | 7:4e39864f7b15 | 518 | |
donatien | 0:2ccb9960a044 | 519 | DBG("Written %d bytes", writtenLen); |
donatien | 0:2ccb9960a044 | 520 | return OK; |
donatien | 0:2ccb9960a044 | 521 | } |
donatien | 0:2ccb9960a044 | 522 | |
donatien | 0:2ccb9960a044 | 523 | int HTTPClient::parseURL(const char* url, char* scheme, size_t maxSchemeLen, char* host, size_t maxHostLen, uint16_t* port, char* path, size_t maxPathLen) //Parse URL |
donatien | 0:2ccb9960a044 | 524 | { |
donatien | 0:2ccb9960a044 | 525 | char* schemePtr = (char*) url; |
donatien | 0:2ccb9960a044 | 526 | char* hostPtr = (char*) strstr(url, "://"); |
donatien | 0:2ccb9960a044 | 527 | if(hostPtr == NULL) |
donatien | 0:2ccb9960a044 | 528 | { |
donatien | 0:2ccb9960a044 | 529 | WARN("Could not find host"); |
donatien | 0:2ccb9960a044 | 530 | return NET_INVALID; //URL is invalid |
donatien | 0:2ccb9960a044 | 531 | } |
donatien | 0:2ccb9960a044 | 532 | |
donatien | 0:2ccb9960a044 | 533 | if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 534 | { |
donatien | 0:2ccb9960a044 | 535 | WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1); |
donatien | 0:2ccb9960a044 | 536 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 537 | } |
donatien | 0:2ccb9960a044 | 538 | memcpy(scheme, schemePtr, hostPtr - schemePtr); |
donatien | 0:2ccb9960a044 | 539 | scheme[hostPtr - schemePtr] = '\0'; |
donatien | 0:2ccb9960a044 | 540 | |
donatien | 0:2ccb9960a044 | 541 | hostPtr+=3; |
donatien | 0:2ccb9960a044 | 542 | |
donatien | 0:2ccb9960a044 | 543 | size_t hostLen = 0; |
donatien | 0:2ccb9960a044 | 544 | |
donatien | 0:2ccb9960a044 | 545 | char* portPtr = strchr(hostPtr, ':'); |
donatien | 0:2ccb9960a044 | 546 | if( portPtr != NULL ) |
donatien | 0:2ccb9960a044 | 547 | { |
donatien | 0:2ccb9960a044 | 548 | hostLen = portPtr - hostPtr; |
donatien | 0:2ccb9960a044 | 549 | portPtr++; |
donatien | 8:45c8da29a1cf | 550 | if( sscanf(portPtr, "%hu", port) != 1) |
donatien | 0:2ccb9960a044 | 551 | { |
donatien | 0:2ccb9960a044 | 552 | WARN("Could not find port"); |
donatien | 0:2ccb9960a044 | 553 | return NET_INVALID; |
donatien | 0:2ccb9960a044 | 554 | } |
donatien | 0:2ccb9960a044 | 555 | } |
donatien | 0:2ccb9960a044 | 556 | else |
donatien | 0:2ccb9960a044 | 557 | { |
donatien | 0:2ccb9960a044 | 558 | *port=0; |
donatien | 0:2ccb9960a044 | 559 | } |
donatien | 0:2ccb9960a044 | 560 | char* pathPtr = strchr(hostPtr, '/'); |
donatien | 0:2ccb9960a044 | 561 | if( hostLen == 0 ) |
donatien | 0:2ccb9960a044 | 562 | { |
donatien | 0:2ccb9960a044 | 563 | hostLen = pathPtr - hostPtr; |
donatien | 0:2ccb9960a044 | 564 | } |
donatien | 0:2ccb9960a044 | 565 | |
donatien | 0:2ccb9960a044 | 566 | if( maxHostLen < hostLen + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 567 | { |
donatien | 0:2ccb9960a044 | 568 | WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1); |
donatien | 0:2ccb9960a044 | 569 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 570 | } |
donatien | 0:2ccb9960a044 | 571 | memcpy(host, hostPtr, hostLen); |
donatien | 0:2ccb9960a044 | 572 | host[hostLen] = '\0'; |
donatien | 0:2ccb9960a044 | 573 | |
donatien | 0:2ccb9960a044 | 574 | size_t pathLen; |
donatien | 0:2ccb9960a044 | 575 | char* fragmentPtr = strchr(hostPtr, '#'); |
donatien | 0:2ccb9960a044 | 576 | if(fragmentPtr != NULL) |
donatien | 0:2ccb9960a044 | 577 | { |
donatien | 0:2ccb9960a044 | 578 | pathLen = fragmentPtr - pathPtr; |
donatien | 0:2ccb9960a044 | 579 | } |
donatien | 0:2ccb9960a044 | 580 | else |
donatien | 0:2ccb9960a044 | 581 | { |
donatien | 0:2ccb9960a044 | 582 | pathLen = strlen(pathPtr); |
donatien | 0:2ccb9960a044 | 583 | } |
donatien | 0:2ccb9960a044 | 584 | |
donatien | 0:2ccb9960a044 | 585 | if( maxPathLen < pathLen + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 586 | { |
donatien | 0:2ccb9960a044 | 587 | WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1); |
donatien | 0:2ccb9960a044 | 588 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 589 | } |
donatien | 0:2ccb9960a044 | 590 | memcpy(path, pathPtr, pathLen); |
donatien | 0:2ccb9960a044 | 591 | path[pathLen] = '\0'; |
donatien | 0:2ccb9960a044 | 592 | |
donatien | 0:2ccb9960a044 | 593 | return OK; |
donatien | 0:2ccb9960a044 | 594 | } |