A HTTP Client for the mbed networking libraries, with a longer path field and a manually editable authentication field for Supertweet.net
Fork of HTTPClient by
HTTPClient.cpp@10:e1351de84c16, 2012-07-18 (annotated)
- Committer:
- donatien
- Date:
- Wed Jul 18 15:40:04 2012 +0000
- Revision:
- 10:e1351de84c16
- Parent:
- 9:ff30cc189191
- Child:
- 11:390362de8c3f
Corrected licence headers
Who changed what in which revision?
User | Revision | Line number | New 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 | 7:4e39864f7b15 | 21 | #if 0 |
donatien | 0:2ccb9960a044 | 22 | #define __DEBUG__ 4 //Maximum verbosity |
donatien | 0:2ccb9960a044 | 23 | #ifndef __MODULE__ |
donatien | 0:2ccb9960a044 | 24 | #define __MODULE__ "HTTPClient.cpp" |
donatien | 0:2ccb9960a044 | 25 | #endif |
donatien | 7:4e39864f7b15 | 26 | #else |
donatien | 7:4e39864f7b15 | 27 | #define __DEBUG__ 0 //Disabled |
donatien | 7:4e39864f7b15 | 28 | #endif |
donatien | 0:2ccb9960a044 | 29 | |
donatien | 0:2ccb9960a044 | 30 | #include "core/fwk.h" |
donatien | 0:2ccb9960a044 | 31 | |
donatien | 0:2ccb9960a044 | 32 | #include "HTTPClient.h" |
donatien | 0:2ccb9960a044 | 33 | |
donatien | 0:2ccb9960a044 | 34 | #define HTTP_REQUEST_TIMEOUT 30000 |
donatien | 0:2ccb9960a044 | 35 | #define HTTP_PORT 80 |
donatien | 0:2ccb9960a044 | 36 | |
donatien | 0:2ccb9960a044 | 37 | #define CHUNK_SIZE 256 |
donatien | 0:2ccb9960a044 | 38 | |
donatien | 0:2ccb9960a044 | 39 | #include <cstring> |
donatien | 0:2ccb9960a044 | 40 | |
donatien | 0:2ccb9960a044 | 41 | HTTPClient::HTTPClient() : |
donatien | 7:4e39864f7b15 | 42 | m_sock(), m_basicAuthUser(NULL), m_basicAuthPassword(NULL), m_httpResponseCode(0) |
donatien | 0:2ccb9960a044 | 43 | { |
donatien | 0:2ccb9960a044 | 44 | |
donatien | 0:2ccb9960a044 | 45 | } |
donatien | 0:2ccb9960a044 | 46 | |
donatien | 0:2ccb9960a044 | 47 | HTTPClient::~HTTPClient() |
donatien | 0:2ccb9960a044 | 48 | { |
donatien | 0:2ccb9960a044 | 49 | |
donatien | 0:2ccb9960a044 | 50 | } |
donatien | 0:2ccb9960a044 | 51 | |
donatien | 0:2ccb9960a044 | 52 | #if 0 |
donatien | 0:2ccb9960a044 | 53 | void HTTPClient::basicAuth(const char* user, const char* password) //Basic Authentification |
donatien | 0:2ccb9960a044 | 54 | { |
donatien | 0:2ccb9960a044 | 55 | m_basicAuthUser = user; |
donatien | 0:2ccb9960a044 | 56 | m_basicAuthPassword = password; |
donatien | 0:2ccb9960a044 | 57 | } |
donatien | 0:2ccb9960a044 | 58 | #endif |
donatien | 0:2ccb9960a044 | 59 | |
donatien | 0:2ccb9960a044 | 60 | int HTTPClient::get(const char* url, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 61 | { |
donatien | 0:2ccb9960a044 | 62 | return connect(url, HTTP_GET, NULL, pDataIn, timeout); |
donatien | 0:2ccb9960a044 | 63 | } |
donatien | 0:2ccb9960a044 | 64 | |
donatien | 0:2ccb9960a044 | 65 | int HTTPClient::get(const char* url, char* result, size_t maxResultLen, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 66 | { |
donatien | 0:2ccb9960a044 | 67 | HTTPText str(result, maxResultLen); |
donatien | 0:2ccb9960a044 | 68 | return get(url, &str, timeout); |
donatien | 0:2ccb9960a044 | 69 | } |
donatien | 0:2ccb9960a044 | 70 | |
donatien | 0:2ccb9960a044 | 71 | int HTTPClient::post(const char* url, const IHTTPDataOut& dataOut, IHTTPDataIn* pDataIn, uint32_t timeout /*= HTTP_CLIENT_DEFAULT_TIMEOUT*/) //Blocking |
donatien | 0:2ccb9960a044 | 72 | { |
donatien | 0:2ccb9960a044 | 73 | return connect(url, HTTP_POST, (IHTTPDataOut*)&dataOut, pDataIn, timeout); |
donatien | 0:2ccb9960a044 | 74 | } |
donatien | 0:2ccb9960a044 | 75 | |
donatien | 0:2ccb9960a044 | 76 | int HTTPClient::getHTTPResponseCode() |
donatien | 0:2ccb9960a044 | 77 | { |
donatien | 0:2ccb9960a044 | 78 | return m_httpResponseCode; |
donatien | 0:2ccb9960a044 | 79 | } |
donatien | 0:2ccb9960a044 | 80 | |
donatien | 5:791fc3dcb6c4 | 81 | #define CHECK_CONN_ERR(ret) \ |
donatien | 5:791fc3dcb6c4 | 82 | do{ \ |
donatien | 7:4e39864f7b15 | 83 | if(ret) { \ |
donatien | 7:4e39864f7b15 | 84 | m_sock.close(); \ |
donatien | 5:791fc3dcb6c4 | 85 | ERR("Connection error (%d)", ret); \ |
donatien | 5:791fc3dcb6c4 | 86 | return NET_CONN; \ |
donatien | 5:791fc3dcb6c4 | 87 | } \ |
donatien | 5:791fc3dcb6c4 | 88 | } while(0) |
donatien | 5:791fc3dcb6c4 | 89 | |
donatien | 5:791fc3dcb6c4 | 90 | #define PRTCL_ERR() \ |
donatien | 5:791fc3dcb6c4 | 91 | do{ \ |
donatien | 7:4e39864f7b15 | 92 | m_sock.close(); \ |
donatien | 5:791fc3dcb6c4 | 93 | ERR("Protocol error"); \ |
donatien | 5:791fc3dcb6c4 | 94 | return NET_PROTOCOL; \ |
donatien | 5:791fc3dcb6c4 | 95 | } while(0) |
donatien | 0:2ccb9960a044 | 96 | |
donatien | 0:2ccb9960a044 | 97 | int HTTPClient::connect(const char* url, HTTP_METH method, IHTTPDataOut* pDataOut, IHTTPDataIn* pDataIn, uint32_t timeout) //Execute request |
donatien | 0:2ccb9960a044 | 98 | { |
donatien | 0:2ccb9960a044 | 99 | m_httpResponseCode = 0; //Invalidate code |
donatien | 0:2ccb9960a044 | 100 | m_timeout = timeout; |
donatien | 0:2ccb9960a044 | 101 | |
donatien | 0:2ccb9960a044 | 102 | char scheme[8]; |
donatien | 0:2ccb9960a044 | 103 | uint16_t port; |
donatien | 0:2ccb9960a044 | 104 | char host[32]; |
donatien | 0:2ccb9960a044 | 105 | char path[64]; |
donatien | 0:2ccb9960a044 | 106 | //First we need to parse the url (http[s]://host[:port][/[path]]) -- HTTPS not supported (yet?) |
donatien | 0:2ccb9960a044 | 107 | int ret = parseURL(url, scheme, sizeof(scheme), host, sizeof(host), &port, path, sizeof(path)); |
donatien | 7:4e39864f7b15 | 108 | if(ret) |
donatien | 0:2ccb9960a044 | 109 | { |
donatien | 0:2ccb9960a044 | 110 | ERR("parseURL returned %d", ret); |
donatien | 0:2ccb9960a044 | 111 | return ret; |
donatien | 0:2ccb9960a044 | 112 | } |
donatien | 0:2ccb9960a044 | 113 | |
donatien | 0:2ccb9960a044 | 114 | if(port == 0) //TODO do handle HTTPS->443 |
donatien | 0:2ccb9960a044 | 115 | { |
donatien | 0:2ccb9960a044 | 116 | port = 80; |
donatien | 0:2ccb9960a044 | 117 | } |
donatien | 0:2ccb9960a044 | 118 | |
donatien | 0:2ccb9960a044 | 119 | DBG("Scheme: %s", scheme); |
donatien | 0:2ccb9960a044 | 120 | DBG("Host: %s", host); |
donatien | 0:2ccb9960a044 | 121 | DBG("Port: %d", port); |
donatien | 0:2ccb9960a044 | 122 | DBG("Path: %s", path); |
donatien | 0:2ccb9960a044 | 123 | |
donatien | 7:4e39864f7b15 | 124 | //Connect |
donatien | 7:4e39864f7b15 | 125 | DBG("Connecting socket to server"); |
donatien | 7:4e39864f7b15 | 126 | ret = m_sock.connect(host, port); |
donatien | 0:2ccb9960a044 | 127 | if (ret < 0) |
donatien | 0:2ccb9960a044 | 128 | { |
donatien | 7:4e39864f7b15 | 129 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 130 | ERR("Could not connect"); |
donatien | 0:2ccb9960a044 | 131 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 132 | } |
donatien | 0:2ccb9960a044 | 133 | |
donatien | 0:2ccb9960a044 | 134 | //Send request |
donatien | 0:2ccb9960a044 | 135 | DBG("Sending request"); |
donatien | 9:ff30cc189191 | 136 | char buf[CHUNK_SIZE]; |
donatien | 0:2ccb9960a044 | 137 | const char* meth = (method==HTTP_GET)?"GET":(method==HTTP_POST)?"POST":""; |
donatien | 9:ff30cc189191 | 138 | snprintf(buf, sizeof(buf), "%s %s HTTP/1.1\r\nHost: %s\r\n", meth, path, host); //Write request |
donatien | 9:ff30cc189191 | 139 | ret = send(buf); |
donatien | 0:2ccb9960a044 | 140 | if(ret) |
donatien | 0:2ccb9960a044 | 141 | { |
donatien | 7:4e39864f7b15 | 142 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 143 | ERR("Could not write request"); |
donatien | 0:2ccb9960a044 | 144 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 145 | } |
donatien | 0:2ccb9960a044 | 146 | |
donatien | 0:2ccb9960a044 | 147 | //Send all headers |
donatien | 0:2ccb9960a044 | 148 | |
donatien | 0:2ccb9960a044 | 149 | //Send default headers |
donatien | 0:2ccb9960a044 | 150 | DBG("Sending headers"); |
donatien | 0:2ccb9960a044 | 151 | if( (method == HTTP_POST) && (pDataOut != NULL) ) |
donatien | 0:2ccb9960a044 | 152 | { |
donatien | 0:2ccb9960a044 | 153 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 154 | { |
donatien | 0:2ccb9960a044 | 155 | ret = send("Transfer-Encoding: chunked\r\n"); |
donatien | 5:791fc3dcb6c4 | 156 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 157 | } |
donatien | 0:2ccb9960a044 | 158 | else |
donatien | 0:2ccb9960a044 | 159 | { |
donatien | 9:ff30cc189191 | 160 | snprintf(buf, sizeof(buf), "Content-Length: %d\r\n", pDataOut->getDataLen()); |
donatien | 9:ff30cc189191 | 161 | ret = send(buf); |
donatien | 5:791fc3dcb6c4 | 162 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 163 | } |
donatien | 0:2ccb9960a044 | 164 | char type[48]; |
donatien | 0:2ccb9960a044 | 165 | if( pDataOut->getDataType(type, 48) == OK ) |
donatien | 0:2ccb9960a044 | 166 | { |
donatien | 9:ff30cc189191 | 167 | snprintf(buf, sizeof(buf), "Content-Type: %s\r\n", type); |
donatien | 9:ff30cc189191 | 168 | ret = send(buf); |
donatien | 5:791fc3dcb6c4 | 169 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 170 | } |
donatien | 0:2ccb9960a044 | 171 | } |
donatien | 9:ff30cc189191 | 172 | |
donatien | 0:2ccb9960a044 | 173 | //Close headers |
donatien | 0:2ccb9960a044 | 174 | DBG("Headers sent"); |
donatien | 0:2ccb9960a044 | 175 | ret = send("\r\n"); |
donatien | 5:791fc3dcb6c4 | 176 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 177 | |
donatien | 4:c071b05ac026 | 178 | size_t trfLen; |
donatien | 9:ff30cc189191 | 179 | |
donatien | 0:2ccb9960a044 | 180 | //Send data (if POST) |
donatien | 0:2ccb9960a044 | 181 | if( (method == HTTP_POST) && (pDataOut != NULL) ) |
donatien | 0:2ccb9960a044 | 182 | { |
donatien | 0:2ccb9960a044 | 183 | DBG("Sending data"); |
donatien | 0:2ccb9960a044 | 184 | while(true) |
donatien | 0:2ccb9960a044 | 185 | { |
donatien | 0:2ccb9960a044 | 186 | size_t writtenLen = 0; |
donatien | 0:2ccb9960a044 | 187 | pDataOut->read(buf, CHUNK_SIZE, &trfLen); |
donatien | 0:2ccb9960a044 | 188 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 189 | { |
donatien | 0:2ccb9960a044 | 190 | //Write chunk header |
donatien | 9:ff30cc189191 | 191 | char chunkHeader[16]; |
donatien | 9:ff30cc189191 | 192 | snprintf(chunkHeader, sizeof(chunkHeader), "%X\r\n", trfLen); //In hex encoding |
donatien | 9:ff30cc189191 | 193 | ret = send(chunkHeader); |
donatien | 5:791fc3dcb6c4 | 194 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 195 | } |
donatien | 0:2ccb9960a044 | 196 | else if( trfLen == 0 ) |
donatien | 0:2ccb9960a044 | 197 | { |
donatien | 0:2ccb9960a044 | 198 | break; |
donatien | 0:2ccb9960a044 | 199 | } |
donatien | 0:2ccb9960a044 | 200 | if( trfLen != 0 ) |
donatien | 0:2ccb9960a044 | 201 | { |
donatien | 0:2ccb9960a044 | 202 | ret = send(buf, trfLen); |
donatien | 5:791fc3dcb6c4 | 203 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 204 | } |
donatien | 0:2ccb9960a044 | 205 | |
donatien | 0:2ccb9960a044 | 206 | if( pDataOut->getIsChunked() ) |
donatien | 0:2ccb9960a044 | 207 | { |
donatien | 0:2ccb9960a044 | 208 | ret = send("\r\n"); //Chunk-terminating CRLF |
donatien | 5:791fc3dcb6c4 | 209 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 210 | } |
donatien | 0:2ccb9960a044 | 211 | else |
donatien | 0:2ccb9960a044 | 212 | { |
donatien | 0:2ccb9960a044 | 213 | writtenLen += trfLen; |
donatien | 0:2ccb9960a044 | 214 | if( writtenLen >= pDataOut->getDataLen() ) |
donatien | 0:2ccb9960a044 | 215 | { |
donatien | 0:2ccb9960a044 | 216 | break; |
donatien | 0:2ccb9960a044 | 217 | } |
donatien | 0:2ccb9960a044 | 218 | } |
donatien | 0:2ccb9960a044 | 219 | |
donatien | 0:2ccb9960a044 | 220 | if( trfLen == 0 ) |
donatien | 0:2ccb9960a044 | 221 | { |
donatien | 0:2ccb9960a044 | 222 | break; |
donatien | 0:2ccb9960a044 | 223 | } |
donatien | 0:2ccb9960a044 | 224 | } |
donatien | 0:2ccb9960a044 | 225 | |
donatien | 0:2ccb9960a044 | 226 | } |
donatien | 9:ff30cc189191 | 227 | |
donatien | 0:2ccb9960a044 | 228 | //Receive response |
donatien | 0:2ccb9960a044 | 229 | DBG("Receiving response"); |
donatien | 4:c071b05ac026 | 230 | ret = recv(buf, CHUNK_SIZE - 1, CHUNK_SIZE - 1, &trfLen); //Read n bytes |
donatien | 5:791fc3dcb6c4 | 231 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 232 | |
donatien | 0:2ccb9960a044 | 233 | buf[trfLen] = '\0'; |
donatien | 0:2ccb9960a044 | 234 | |
donatien | 0:2ccb9960a044 | 235 | char* crlfPtr = strstr(buf, "\r\n"); |
donatien | 0:2ccb9960a044 | 236 | if(crlfPtr == NULL) |
donatien | 0:2ccb9960a044 | 237 | { |
donatien | 5:791fc3dcb6c4 | 238 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 239 | } |
donatien | 0:2ccb9960a044 | 240 | |
donatien | 4:c071b05ac026 | 241 | int crlfPos = crlfPtr - buf; |
donatien | 0:2ccb9960a044 | 242 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 243 | |
donatien | 0:2ccb9960a044 | 244 | //Parse HTTP response |
donatien | 0:2ccb9960a044 | 245 | if( sscanf(buf, "HTTP/%*d.%*d %d %*[^\r\n]", &m_httpResponseCode) != 1 ) |
donatien | 0:2ccb9960a044 | 246 | { |
donatien | 0:2ccb9960a044 | 247 | //Cannot match string, error |
donatien | 0:2ccb9960a044 | 248 | ERR("Not a correct HTTP answer : %s\n", buf); |
donatien | 5:791fc3dcb6c4 | 249 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 250 | } |
donatien | 0:2ccb9960a044 | 251 | |
donatien | 0:2ccb9960a044 | 252 | if(m_httpResponseCode != 200) |
donatien | 0:2ccb9960a044 | 253 | { |
donatien | 0:2ccb9960a044 | 254 | //Cannot match string, error |
donatien | 0:2ccb9960a044 | 255 | WARN("Response code %d", m_httpResponseCode); |
donatien | 5:791fc3dcb6c4 | 256 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 257 | } |
donatien | 0:2ccb9960a044 | 258 | |
donatien | 0:2ccb9960a044 | 259 | DBG("Reading headers"); |
donatien | 0:2ccb9960a044 | 260 | |
donatien | 4:c071b05ac026 | 261 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 262 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 263 | |
donatien | 4:c071b05ac026 | 264 | size_t recvContentLength = 0; |
donatien | 4:c071b05ac026 | 265 | bool recvChunked = false; |
donatien | 0:2ccb9960a044 | 266 | //Now get headers |
donatien | 0:2ccb9960a044 | 267 | while( true ) |
donatien | 0:2ccb9960a044 | 268 | { |
donatien | 0:2ccb9960a044 | 269 | crlfPtr = strstr(buf, "\r\n"); |
donatien | 0:2ccb9960a044 | 270 | if(crlfPtr == NULL) |
donatien | 0:2ccb9960a044 | 271 | { |
donatien | 4:c071b05ac026 | 272 | if( trfLen < CHUNK_SIZE - 1 ) |
donatien | 0:2ccb9960a044 | 273 | { |
donatien | 0:2ccb9960a044 | 274 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 275 | ret = recv(buf + trfLen, 1, CHUNK_SIZE - trfLen - 1, &newTrfLen); |
donatien | 0:2ccb9960a044 | 276 | trfLen += newTrfLen; |
donatien | 0:2ccb9960a044 | 277 | buf[trfLen] = '\0'; |
donatien | 4:c071b05ac026 | 278 | DBG("Read %d chars; In buf: [%s]", newTrfLen, buf); |
donatien | 5:791fc3dcb6c4 | 279 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 280 | continue; |
donatien | 0:2ccb9960a044 | 281 | } |
donatien | 0:2ccb9960a044 | 282 | else |
donatien | 0:2ccb9960a044 | 283 | { |
donatien | 5:791fc3dcb6c4 | 284 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 285 | } |
donatien | 0:2ccb9960a044 | 286 | } |
donatien | 0:2ccb9960a044 | 287 | |
donatien | 0:2ccb9960a044 | 288 | crlfPos = crlfPtr - buf; |
donatien | 0:2ccb9960a044 | 289 | |
donatien | 0:2ccb9960a044 | 290 | if(crlfPos == 0) //End of headers |
donatien | 0:2ccb9960a044 | 291 | { |
donatien | 0:2ccb9960a044 | 292 | DBG("Headers read"); |
donatien | 4:c071b05ac026 | 293 | memmove(buf, &buf[2], trfLen - 2 + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 294 | trfLen -= 2; |
donatien | 0:2ccb9960a044 | 295 | break; |
donatien | 0:2ccb9960a044 | 296 | } |
donatien | 0:2ccb9960a044 | 297 | |
donatien | 0:2ccb9960a044 | 298 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 299 | |
donatien | 4:c071b05ac026 | 300 | char key[32]; |
donatien | 4:c071b05ac026 | 301 | char value[32]; |
donatien | 0:2ccb9960a044 | 302 | |
donatien | 4:c071b05ac026 | 303 | key[31] = '\0'; |
donatien | 4:c071b05ac026 | 304 | value[31] = '\0'; |
donatien | 4:c071b05ac026 | 305 | |
donatien | 4:c071b05ac026 | 306 | int n = sscanf(buf, "%31[^:]: %31[^\r\n]", key, value); |
donatien | 0:2ccb9960a044 | 307 | if ( n == 2 ) |
donatien | 0:2ccb9960a044 | 308 | { |
donatien | 0:2ccb9960a044 | 309 | DBG("Read header : %s: %s\n", key, value); |
donatien | 0:2ccb9960a044 | 310 | if( !strcmp(key, "Content-Length") ) |
donatien | 0:2ccb9960a044 | 311 | { |
donatien | 0:2ccb9960a044 | 312 | sscanf(value, "%d", &recvContentLength); |
donatien | 0:2ccb9960a044 | 313 | pDataIn->setDataLen(recvContentLength); |
donatien | 0:2ccb9960a044 | 314 | } |
donatien | 0:2ccb9960a044 | 315 | else if( !strcmp(key, "Transfer-Encoding") ) |
donatien | 0:2ccb9960a044 | 316 | { |
donatien | 0:2ccb9960a044 | 317 | if( !strcmp(value, "Chunked") || !strcmp(value, "chunked") ) |
donatien | 0:2ccb9960a044 | 318 | { |
donatien | 0:2ccb9960a044 | 319 | recvChunked = true; |
donatien | 0:2ccb9960a044 | 320 | pDataIn->setIsChunked(true); |
donatien | 0:2ccb9960a044 | 321 | } |
donatien | 0:2ccb9960a044 | 322 | } |
donatien | 0:2ccb9960a044 | 323 | else if( !strcmp(key, "Content-Type") ) |
donatien | 0:2ccb9960a044 | 324 | { |
donatien | 0:2ccb9960a044 | 325 | pDataIn->setDataType(value); |
donatien | 0:2ccb9960a044 | 326 | } |
donatien | 0:2ccb9960a044 | 327 | |
donatien | 4:c071b05ac026 | 328 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2) + 1); //Be sure to move NULL-terminating char as well |
donatien | 0:2ccb9960a044 | 329 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 330 | |
donatien | 0:2ccb9960a044 | 331 | } |
donatien | 0:2ccb9960a044 | 332 | else |
donatien | 0:2ccb9960a044 | 333 | { |
donatien | 0:2ccb9960a044 | 334 | ERR("Could not parse header"); |
donatien | 5:791fc3dcb6c4 | 335 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 336 | } |
donatien | 0:2ccb9960a044 | 337 | |
donatien | 0:2ccb9960a044 | 338 | } |
donatien | 0:2ccb9960a044 | 339 | |
donatien | 0:2ccb9960a044 | 340 | //Receive data |
donatien | 0:2ccb9960a044 | 341 | DBG("Receiving data"); |
donatien | 0:2ccb9960a044 | 342 | while(true) |
donatien | 0:2ccb9960a044 | 343 | { |
donatien | 0:2ccb9960a044 | 344 | size_t readLen = 0; |
donatien | 0:2ccb9960a044 | 345 | |
donatien | 0:2ccb9960a044 | 346 | if( recvChunked ) |
donatien | 0:2ccb9960a044 | 347 | { |
donatien | 0:2ccb9960a044 | 348 | //Read chunk header |
donatien | 0:2ccb9960a044 | 349 | crlfPos=0; |
donatien | 0:2ccb9960a044 | 350 | for(crlfPos++; crlfPos < trfLen - 2; crlfPos++) |
donatien | 0:2ccb9960a044 | 351 | { |
donatien | 0:2ccb9960a044 | 352 | if( buf[crlfPos] == '\r' && buf[crlfPos + 1] == '\n' ) |
donatien | 0:2ccb9960a044 | 353 | { |
donatien | 0:2ccb9960a044 | 354 | break; |
donatien | 0:2ccb9960a044 | 355 | } |
donatien | 0:2ccb9960a044 | 356 | } |
donatien | 0:2ccb9960a044 | 357 | if(crlfPos >= trfLen - 2) //Try to read more |
donatien | 0:2ccb9960a044 | 358 | { |
donatien | 0:2ccb9960a044 | 359 | if( trfLen < CHUNK_SIZE ) |
donatien | 0:2ccb9960a044 | 360 | { |
donatien | 0:2ccb9960a044 | 361 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 362 | ret = recv(buf + trfLen, 0, CHUNK_SIZE - trfLen - 1, &newTrfLen); |
donatien | 0:2ccb9960a044 | 363 | trfLen += newTrfLen; |
donatien | 5:791fc3dcb6c4 | 364 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 365 | continue; |
donatien | 0:2ccb9960a044 | 366 | } |
donatien | 0:2ccb9960a044 | 367 | else |
donatien | 0:2ccb9960a044 | 368 | { |
donatien | 5:791fc3dcb6c4 | 369 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 370 | } |
donatien | 0:2ccb9960a044 | 371 | } |
donatien | 0:2ccb9960a044 | 372 | buf[crlfPos] = '\0'; |
donatien | 0:2ccb9960a044 | 373 | int n = sscanf(buf, "%x", &readLen); |
donatien | 0:2ccb9960a044 | 374 | if(n!=1) |
donatien | 0:2ccb9960a044 | 375 | { |
donatien | 0:2ccb9960a044 | 376 | ERR("Could not read chunk length"); |
donatien | 5:791fc3dcb6c4 | 377 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 378 | } |
donatien | 0:2ccb9960a044 | 379 | |
donatien | 4:c071b05ac026 | 380 | memmove(buf, &buf[crlfPos+2], trfLen - (crlfPos + 2)); //Not need to move NULL-terminating char any more |
donatien | 0:2ccb9960a044 | 381 | trfLen -= (crlfPos + 2); |
donatien | 0:2ccb9960a044 | 382 | |
donatien | 0:2ccb9960a044 | 383 | if( readLen == 0 ) |
donatien | 0:2ccb9960a044 | 384 | { |
donatien | 0:2ccb9960a044 | 385 | //Last chunk |
donatien | 0:2ccb9960a044 | 386 | break; |
donatien | 0:2ccb9960a044 | 387 | } |
donatien | 0:2ccb9960a044 | 388 | } |
donatien | 0:2ccb9960a044 | 389 | else |
donatien | 0:2ccb9960a044 | 390 | { |
donatien | 0:2ccb9960a044 | 391 | readLen = recvContentLength; |
donatien | 0:2ccb9960a044 | 392 | } |
donatien | 0:2ccb9960a044 | 393 | |
donatien | 0:2ccb9960a044 | 394 | DBG("Retrieving %d bytes", readLen); |
donatien | 0:2ccb9960a044 | 395 | |
donatien | 0:2ccb9960a044 | 396 | do |
donatien | 0:2ccb9960a044 | 397 | { |
donatien | 0:2ccb9960a044 | 398 | pDataIn->write(buf, MIN(trfLen, readLen)); |
donatien | 0:2ccb9960a044 | 399 | if( trfLen > readLen ) |
donatien | 0:2ccb9960a044 | 400 | { |
donatien | 0:2ccb9960a044 | 401 | memmove(buf, &buf[readLen], trfLen - readLen); |
donatien | 0:2ccb9960a044 | 402 | trfLen -= readLen; |
donatien | 0:2ccb9960a044 | 403 | readLen = 0; |
donatien | 0:2ccb9960a044 | 404 | } |
donatien | 0:2ccb9960a044 | 405 | else |
donatien | 0:2ccb9960a044 | 406 | { |
donatien | 0:2ccb9960a044 | 407 | readLen -= trfLen; |
donatien | 0:2ccb9960a044 | 408 | } |
donatien | 0:2ccb9960a044 | 409 | |
donatien | 0:2ccb9960a044 | 410 | if(readLen) |
donatien | 0:2ccb9960a044 | 411 | { |
donatien | 0:2ccb9960a044 | 412 | ret = recv(buf, 1, CHUNK_SIZE - trfLen - 1, &trfLen); |
donatien | 5:791fc3dcb6c4 | 413 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 414 | } |
donatien | 0:2ccb9960a044 | 415 | } while(readLen); |
donatien | 0:2ccb9960a044 | 416 | |
donatien | 0:2ccb9960a044 | 417 | if( recvChunked ) |
donatien | 0:2ccb9960a044 | 418 | { |
donatien | 0:2ccb9960a044 | 419 | if(trfLen < 2) |
donatien | 0:2ccb9960a044 | 420 | { |
donatien | 0:2ccb9960a044 | 421 | size_t newTrfLen; |
donatien | 0:2ccb9960a044 | 422 | //Read missing chars to find end of chunk |
donatien | 0:2ccb9960a044 | 423 | ret = recv(buf, 2 - trfLen, CHUNK_SIZE, &newTrfLen); |
donatien | 5:791fc3dcb6c4 | 424 | CHECK_CONN_ERR(ret); |
donatien | 0:2ccb9960a044 | 425 | trfLen += newTrfLen; |
donatien | 0:2ccb9960a044 | 426 | } |
donatien | 0:2ccb9960a044 | 427 | if( (buf[0] != '\r') || (buf[1] != '\n') ) |
donatien | 0:2ccb9960a044 | 428 | { |
donatien | 0:2ccb9960a044 | 429 | ERR("Format error"); |
donatien | 5:791fc3dcb6c4 | 430 | PRTCL_ERR(); |
donatien | 0:2ccb9960a044 | 431 | } |
donatien | 0:2ccb9960a044 | 432 | memmove(buf, &buf[2], trfLen - 2); |
donatien | 0:2ccb9960a044 | 433 | trfLen -= 2; |
donatien | 0:2ccb9960a044 | 434 | } |
donatien | 0:2ccb9960a044 | 435 | else |
donatien | 0:2ccb9960a044 | 436 | { |
donatien | 0:2ccb9960a044 | 437 | break; |
donatien | 0:2ccb9960a044 | 438 | } |
donatien | 0:2ccb9960a044 | 439 | |
donatien | 0:2ccb9960a044 | 440 | } |
donatien | 0:2ccb9960a044 | 441 | |
donatien | 7:4e39864f7b15 | 442 | m_sock.close(); |
donatien | 0:2ccb9960a044 | 443 | DBG("Completed HTTP transaction"); |
donatien | 0:2ccb9960a044 | 444 | |
donatien | 0:2ccb9960a044 | 445 | return OK; |
donatien | 0:2ccb9960a044 | 446 | } |
donatien | 0:2ccb9960a044 | 447 | |
donatien | 0:2ccb9960a044 | 448 | int HTTPClient::recv(char* buf, size_t minLen, size_t maxLen, size_t* pReadLen) //0 on success, err code on failure |
donatien | 0:2ccb9960a044 | 449 | { |
donatien | 0:2ccb9960a044 | 450 | DBG("Trying to read between %d and %d bytes", minLen, maxLen); |
donatien | 0:2ccb9960a044 | 451 | size_t readLen = 0; |
donatien | 7:4e39864f7b15 | 452 | |
donatien | 7:4e39864f7b15 | 453 | int ret; |
donatien | 7:4e39864f7b15 | 454 | while(readLen < maxLen) |
donatien | 0:2ccb9960a044 | 455 | { |
donatien | 7:4e39864f7b15 | 456 | if(readLen < minLen) |
donatien | 0:2ccb9960a044 | 457 | { |
donatien | 7:4e39864f7b15 | 458 | ret = m_sock.receive(buf + readLen, minLen - readLen, m_timeout); |
donatien | 0:2ccb9960a044 | 459 | } |
donatien | 7:4e39864f7b15 | 460 | else |
donatien | 7:4e39864f7b15 | 461 | { |
donatien | 7:4e39864f7b15 | 462 | ret = m_sock.receive(buf + readLen, maxLen - readLen, 0); |
donatien | 7:4e39864f7b15 | 463 | } |
donatien | 7:4e39864f7b15 | 464 | |
donatien | 0:2ccb9960a044 | 465 | if( ret > 0) |
donatien | 0:2ccb9960a044 | 466 | { |
donatien | 0:2ccb9960a044 | 467 | readLen += ret; |
donatien | 0:2ccb9960a044 | 468 | continue; |
donatien | 0:2ccb9960a044 | 469 | } |
donatien | 0:2ccb9960a044 | 470 | else if( ret == 0 ) |
donatien | 0:2ccb9960a044 | 471 | { |
donatien | 7:4e39864f7b15 | 472 | break; |
donatien | 7:4e39864f7b15 | 473 | } |
donatien | 7:4e39864f7b15 | 474 | else |
donatien | 7:4e39864f7b15 | 475 | { |
donatien | 7:4e39864f7b15 | 476 | ERR("Connection error (recv returned %d)", ret); |
donatien | 7:4e39864f7b15 | 477 | *pReadLen = readLen; |
donatien | 7:4e39864f7b15 | 478 | return NET_CONN; |
donatien | 7:4e39864f7b15 | 479 | } |
donatien | 7:4e39864f7b15 | 480 | } |
donatien | 7:4e39864f7b15 | 481 | DBG("Read %d bytes", readLen); |
donatien | 7:4e39864f7b15 | 482 | *pReadLen = readLen; |
donatien | 7:4e39864f7b15 | 483 | return OK; |
donatien | 7:4e39864f7b15 | 484 | } |
donatien | 7:4e39864f7b15 | 485 | |
donatien | 7:4e39864f7b15 | 486 | int HTTPClient::send(char* buf, size_t len) //0 on success, err code on failure |
donatien | 7:4e39864f7b15 | 487 | { |
donatien | 7:4e39864f7b15 | 488 | if(len == 0) |
donatien | 7:4e39864f7b15 | 489 | { |
donatien | 7:4e39864f7b15 | 490 | len = strlen(buf); |
donatien | 7:4e39864f7b15 | 491 | } |
donatien | 7:4e39864f7b15 | 492 | DBG("Trying to write %d bytes", len); |
donatien | 7:4e39864f7b15 | 493 | size_t writtenLen = 0; |
donatien | 7:4e39864f7b15 | 494 | |
donatien | 7:4e39864f7b15 | 495 | int ret; |
donatien | 7:4e39864f7b15 | 496 | do |
donatien | 7:4e39864f7b15 | 497 | { |
donatien | 7:4e39864f7b15 | 498 | ret = m_sock.send(buf + writtenLen, len - writtenLen, m_timeout); |
donatien | 7:4e39864f7b15 | 499 | if(ret > 0) |
donatien | 7:4e39864f7b15 | 500 | { |
donatien | 7:4e39864f7b15 | 501 | writtenLen += ret; |
donatien | 7:4e39864f7b15 | 502 | } |
donatien | 7:4e39864f7b15 | 503 | else if( ret == 0 ) |
donatien | 7:4e39864f7b15 | 504 | { |
donatien | 0:2ccb9960a044 | 505 | WARN("Connection was closed by server"); |
donatien | 0:2ccb9960a044 | 506 | return NET_CLOSED; //Connection was closed by server |
donatien | 0:2ccb9960a044 | 507 | } |
donatien | 0:2ccb9960a044 | 508 | else |
donatien | 0:2ccb9960a044 | 509 | { |
donatien | 0:2ccb9960a044 | 510 | ERR("Connection error (recv returned %d)", ret); |
donatien | 0:2ccb9960a044 | 511 | return NET_CONN; |
donatien | 0:2ccb9960a044 | 512 | } |
donatien | 7:4e39864f7b15 | 513 | } while(writtenLen < len); |
donatien | 7:4e39864f7b15 | 514 | |
donatien | 0:2ccb9960a044 | 515 | DBG("Written %d bytes", writtenLen); |
donatien | 0:2ccb9960a044 | 516 | return OK; |
donatien | 0:2ccb9960a044 | 517 | } |
donatien | 0:2ccb9960a044 | 518 | |
donatien | 0:2ccb9960a044 | 519 | 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 | 520 | { |
donatien | 0:2ccb9960a044 | 521 | char* schemePtr = (char*) url; |
donatien | 0:2ccb9960a044 | 522 | char* hostPtr = (char*) strstr(url, "://"); |
donatien | 0:2ccb9960a044 | 523 | if(hostPtr == NULL) |
donatien | 0:2ccb9960a044 | 524 | { |
donatien | 0:2ccb9960a044 | 525 | WARN("Could not find host"); |
donatien | 0:2ccb9960a044 | 526 | return NET_INVALID; //URL is invalid |
donatien | 0:2ccb9960a044 | 527 | } |
donatien | 0:2ccb9960a044 | 528 | |
donatien | 0:2ccb9960a044 | 529 | if( maxSchemeLen < hostPtr - schemePtr + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 530 | { |
donatien | 0:2ccb9960a044 | 531 | WARN("Scheme str is too small (%d >= %d)", maxSchemeLen, hostPtr - schemePtr + 1); |
donatien | 0:2ccb9960a044 | 532 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 533 | } |
donatien | 0:2ccb9960a044 | 534 | memcpy(scheme, schemePtr, hostPtr - schemePtr); |
donatien | 0:2ccb9960a044 | 535 | scheme[hostPtr - schemePtr] = '\0'; |
donatien | 0:2ccb9960a044 | 536 | |
donatien | 0:2ccb9960a044 | 537 | hostPtr+=3; |
donatien | 0:2ccb9960a044 | 538 | |
donatien | 0:2ccb9960a044 | 539 | size_t hostLen = 0; |
donatien | 0:2ccb9960a044 | 540 | |
donatien | 0:2ccb9960a044 | 541 | char* portPtr = strchr(hostPtr, ':'); |
donatien | 0:2ccb9960a044 | 542 | if( portPtr != NULL ) |
donatien | 0:2ccb9960a044 | 543 | { |
donatien | 0:2ccb9960a044 | 544 | hostLen = portPtr - hostPtr; |
donatien | 0:2ccb9960a044 | 545 | portPtr++; |
donatien | 8:45c8da29a1cf | 546 | if( sscanf(portPtr, "%hu", port) != 1) |
donatien | 0:2ccb9960a044 | 547 | { |
donatien | 0:2ccb9960a044 | 548 | WARN("Could not find port"); |
donatien | 0:2ccb9960a044 | 549 | return NET_INVALID; |
donatien | 0:2ccb9960a044 | 550 | } |
donatien | 0:2ccb9960a044 | 551 | } |
donatien | 0:2ccb9960a044 | 552 | else |
donatien | 0:2ccb9960a044 | 553 | { |
donatien | 0:2ccb9960a044 | 554 | *port=0; |
donatien | 0:2ccb9960a044 | 555 | } |
donatien | 0:2ccb9960a044 | 556 | char* pathPtr = strchr(hostPtr, '/'); |
donatien | 0:2ccb9960a044 | 557 | if( hostLen == 0 ) |
donatien | 0:2ccb9960a044 | 558 | { |
donatien | 0:2ccb9960a044 | 559 | hostLen = pathPtr - hostPtr; |
donatien | 0:2ccb9960a044 | 560 | } |
donatien | 0:2ccb9960a044 | 561 | |
donatien | 0:2ccb9960a044 | 562 | if( maxHostLen < hostLen + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 563 | { |
donatien | 0:2ccb9960a044 | 564 | WARN("Host str is too small (%d >= %d)", maxHostLen, hostLen + 1); |
donatien | 0:2ccb9960a044 | 565 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 566 | } |
donatien | 0:2ccb9960a044 | 567 | memcpy(host, hostPtr, hostLen); |
donatien | 0:2ccb9960a044 | 568 | host[hostLen] = '\0'; |
donatien | 0:2ccb9960a044 | 569 | |
donatien | 0:2ccb9960a044 | 570 | size_t pathLen; |
donatien | 0:2ccb9960a044 | 571 | char* fragmentPtr = strchr(hostPtr, '#'); |
donatien | 0:2ccb9960a044 | 572 | if(fragmentPtr != NULL) |
donatien | 0:2ccb9960a044 | 573 | { |
donatien | 0:2ccb9960a044 | 574 | pathLen = fragmentPtr - pathPtr; |
donatien | 0:2ccb9960a044 | 575 | } |
donatien | 0:2ccb9960a044 | 576 | else |
donatien | 0:2ccb9960a044 | 577 | { |
donatien | 0:2ccb9960a044 | 578 | pathLen = strlen(pathPtr); |
donatien | 0:2ccb9960a044 | 579 | } |
donatien | 0:2ccb9960a044 | 580 | |
donatien | 0:2ccb9960a044 | 581 | if( maxPathLen < pathLen + 1 ) //including NULL-terminating char |
donatien | 0:2ccb9960a044 | 582 | { |
donatien | 0:2ccb9960a044 | 583 | WARN("Path str is too small (%d >= %d)", maxPathLen, pathLen + 1); |
donatien | 0:2ccb9960a044 | 584 | return NET_TOOSMALL; |
donatien | 0:2ccb9960a044 | 585 | } |
donatien | 0:2ccb9960a044 | 586 | memcpy(path, pathPtr, pathLen); |
donatien | 0:2ccb9960a044 | 587 | path[pathLen] = '\0'; |
donatien | 0:2ccb9960a044 | 588 | |
donatien | 0:2ccb9960a044 | 589 | return OK; |
donatien | 0:2ccb9960a044 | 590 | } |