Patrick Barrett / HTTPClient

Fork of wolfSSL's HTTPClient fork. Fork!

Dependencies:   CyaSSL

Dependents:   exosite_http_example exosite_http_example

Fork of HTTPClient by wolf SSL

data/HTTPMap.cpp@32:7716672463b9, 2015-01-20 (annotated)

Committer:
PBarrett
Date:
Tue Jan 20 19:40:15 2015 +0000
Revision:
32:7716672463b9
Parent:
16:1f743885e7de 
added IHTTPDataIn support to HTTPMap, remove previous content-type hack

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:2ccb9960a044 1 /* HTTPMap.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 0:2ccb9960a044 20 #include "HTTPMap.h"
donatien 0:2ccb9960a044 21
donatien 0:2ccb9960a044 22 #include <cstring>
donatien 0:2ccb9960a044 23
donatien 0:2ccb9960a044 24 #include <cctype>
donatien 0:2ccb9960a044 25
donatien 13:be61104f4e91 26 #define OK 0
donatien 13:be61104f4e91 27
PBarrett 32:7716672463b9 28 #define MIN(x,y) (((x)<(y))?(x):(y))
PBarrett 32:7716672463b9 29 #define MAX(x,y) (((x)>(y))?(x):(y))
PBarrett 32:7716672463b9 30
donatien 13:be61104f4e91 31 using std::strncpy;
PBarrett 32:7716672463b9 32 using std::memcpy;
PBarrett 32:7716672463b9 33 using std::strcmp;
PBarrett 32:7716672463b9 34 using std::strlen;
PBarrett 32:7716672463b9 35
PBarrett 32:7716672463b9 36 static char UrlDecode(char* str, size_t& offset);
PBarrett 32:7716672463b9 37 static char HexDecode(char c);
donatien 13:be61104f4e91 38
donatien 0:2ccb9960a044 39 HTTPMap::HTTPMap() : m_pos(0), m_count(0)
donatien 0:2ccb9960a044 40 {
donatien 0:2ccb9960a044 41
donatien 0:2ccb9960a044 42 }
donatien 0:2ccb9960a044 43
PBarrett 32:7716672463b9 44 HTTPMap::HTTPMap(char* str, size_t size) : m_str(str), m_size(size), m_pos(0), m_read_pos(0)
PBarrett 32:7716672463b9 45 {
PBarrett 32:7716672463b9 46
PBarrett 32:7716672463b9 47 }
PBarrett 32:7716672463b9 48
donatien 0:2ccb9960a044 49 void HTTPMap::put(const char* key, const char* value)
donatien 0:2ccb9960a044 50 {
donatien 0:2ccb9960a044 51 if(m_count >= HTTPMAP_TABLE_SIZE)
donatien 0:2ccb9960a044 52 {
donatien 0:2ccb9960a044 53 return;
donatien 0:2ccb9960a044 54 }
donatien 0:2ccb9960a044 55 m_keys[m_count] = key;
donatien 0:2ccb9960a044 56 m_values[m_count] = value;
donatien 0:2ccb9960a044 57 m_count++;
donatien 0:2ccb9960a044 58 }
donatien 0:2ccb9960a044 59
donatien 0:2ccb9960a044 60 void HTTPMap::clear()
donatien 0:2ccb9960a044 61 {
donatien 0:2ccb9960a044 62 m_count = 0;
donatien 0:2ccb9960a044 63 m_pos = 0;
donatien 0:2ccb9960a044 64 }
donatien 0:2ccb9960a044 65
donatien 16:1f743885e7de 66 /*virtual*/ void HTTPMap::readReset()
donatien 16:1f743885e7de 67 {
donatien 16:1f743885e7de 68 m_pos = 0;
donatien 16:1f743885e7de 69 }
donatien 0:2ccb9960a044 70
donatien 0:2ccb9960a044 71 /*virtual*/ int HTTPMap::read(char* buf, size_t len, size_t* pReadLen)
donatien 0:2ccb9960a044 72 {
donatien 0:2ccb9960a044 73 if(m_pos >= m_count)
donatien 0:2ccb9960a044 74 {
donatien 0:2ccb9960a044 75 *pReadLen = 0;
donatien 0:2ccb9960a044 76 m_pos = 0;
donatien 0:2ccb9960a044 77 return OK;
donatien 0:2ccb9960a044 78 }
donatien 0:2ccb9960a044 79
donatien 0:2ccb9960a044 80 //URL encode
donatien 0:2ccb9960a044 81 char* out = buf;
donatien 0:2ccb9960a044 82 const char* in = m_keys[m_pos];
donatien 0:2ccb9960a044 83 if( (m_pos != 0) && (out - buf < len - 1) )
donatien 0:2ccb9960a044 84 {
donatien 0:2ccb9960a044 85 *out='&';
donatien 0:2ccb9960a044 86 out++;
donatien 0:2ccb9960a044 87 }
donatien 0:2ccb9960a044 88
donatien 0:2ccb9960a044 89 while( (*in != '\0') && (out - buf < len - 3) )
donatien 0:2ccb9960a044 90 {
donatien 0:2ccb9960a044 91 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~')
donatien 0:2ccb9960a044 92 {
donatien 0:2ccb9960a044 93 *out = *in;
donatien 0:2ccb9960a044 94 out++;
donatien 0:2ccb9960a044 95 }
donatien 0:2ccb9960a044 96 else if( *in == ' ' )
donatien 0:2ccb9960a044 97 {
donatien 0:2ccb9960a044 98 *out='+';
donatien 0:2ccb9960a044 99 out++;
donatien 0:2ccb9960a044 100 }
donatien 0:2ccb9960a044 101 else
donatien 0:2ccb9960a044 102 {
donatien 0:2ccb9960a044 103 char hex[] = "0123456789abcdef";
donatien 0:2ccb9960a044 104 *out='%';
donatien 0:2ccb9960a044 105 out++;
donatien 0:2ccb9960a044 106 *out=hex[(*in>>4)&0xf];
donatien 0:2ccb9960a044 107 out++;
donatien 0:2ccb9960a044 108 *out=hex[(*in)&0xf];
donatien 0:2ccb9960a044 109 out++;
donatien 0:2ccb9960a044 110 }
donatien 0:2ccb9960a044 111 in++;
donatien 0:2ccb9960a044 112 }
donatien 0:2ccb9960a044 113
donatien 0:2ccb9960a044 114 if( out - buf < len - 1 )
donatien 0:2ccb9960a044 115 {
donatien 0:2ccb9960a044 116 *out='=';
donatien 0:2ccb9960a044 117 out++;
donatien 0:2ccb9960a044 118 }
donatien 0:2ccb9960a044 119
donatien 0:2ccb9960a044 120 in = m_values[m_pos];
donatien 0:2ccb9960a044 121 while( (*in != '\0') && (out - buf < len - 3) )
donatien 0:2ccb9960a044 122 {
donatien 0:2ccb9960a044 123 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~')
donatien 0:2ccb9960a044 124 {
donatien 0:2ccb9960a044 125 *out = *in;
donatien 0:2ccb9960a044 126 out++;
donatien 0:2ccb9960a044 127 }
donatien 0:2ccb9960a044 128 else if( *in == ' ' )
donatien 0:2ccb9960a044 129 {
donatien 0:2ccb9960a044 130 *out='+';
donatien 0:2ccb9960a044 131 out++;
donatien 0:2ccb9960a044 132 }
donatien 0:2ccb9960a044 133 else
donatien 0:2ccb9960a044 134 {
donatien 0:2ccb9960a044 135 char hex[] = "0123456789abcdef";
donatien 0:2ccb9960a044 136 *out='%';
donatien 0:2ccb9960a044 137 out++;
donatien 0:2ccb9960a044 138 *out=hex[(*in>>4)&0xf];
donatien 0:2ccb9960a044 139 out++;
donatien 0:2ccb9960a044 140 *out=hex[(*in)&0xf];
donatien 0:2ccb9960a044 141 out++;
donatien 0:2ccb9960a044 142 }
donatien 0:2ccb9960a044 143 in++;
donatien 0:2ccb9960a044 144 }
donatien 0:2ccb9960a044 145
donatien 0:2ccb9960a044 146 *pReadLen = out - buf;
donatien 0:2ccb9960a044 147
donatien 0:2ccb9960a044 148 m_pos++;
donatien 0:2ccb9960a044 149 return OK;
donatien 0:2ccb9960a044 150 }
donatien 0:2ccb9960a044 151
donatien 0:2ccb9960a044 152 /*virtual*/ int HTTPMap::getDataType(char* type, size_t maxTypeLen) //Internet media type for Content-Type header
donatien 0:2ccb9960a044 153 {
donatien 0:2ccb9960a044 154 strncpy(type, "application/x-www-form-urlencoded", maxTypeLen-1);
donatien 0:2ccb9960a044 155 type[maxTypeLen-1] = '\0';
donatien 0:2ccb9960a044 156 return OK;
donatien 0:2ccb9960a044 157 }
donatien 0:2ccb9960a044 158
donatien 0:2ccb9960a044 159 /*virtual*/ bool HTTPMap::getIsChunked() //For Transfer-Encoding header
donatien 0:2ccb9960a044 160 {
donatien 0:2ccb9960a044 161 return false; ////Data is computed one key/value pair at a time
donatien 0:2ccb9960a044 162 }
donatien 0:2ccb9960a044 163
donatien 0:2ccb9960a044 164 /*virtual*/ size_t HTTPMap::getDataLen() //For Content-Length header
donatien 0:2ccb9960a044 165 {
donatien 0:2ccb9960a044 166 size_t count = 0;
donatien 0:2ccb9960a044 167 for(size_t i = 0; i< m_count; i++)
donatien 0:2ccb9960a044 168 {
donatien 0:2ccb9960a044 169 //URL encode
donatien 0:2ccb9960a044 170 const char* in = m_keys[i];
donatien 0:2ccb9960a044 171 if( i != 0 )
donatien 0:2ccb9960a044 172 {
donatien 0:2ccb9960a044 173 count++;
donatien 0:2ccb9960a044 174 }
donatien 0:2ccb9960a044 175
donatien 0:2ccb9960a044 176 while( (*in != '\0') )
donatien 0:2ccb9960a044 177 {
donatien 0:2ccb9960a044 178 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~')
donatien 0:2ccb9960a044 179 {
donatien 0:2ccb9960a044 180 count++;
donatien 0:2ccb9960a044 181 }
donatien 0:2ccb9960a044 182 else if( *in == ' ' )
donatien 0:2ccb9960a044 183 {
donatien 0:2ccb9960a044 184 count++;
donatien 0:2ccb9960a044 185 }
donatien 0:2ccb9960a044 186 else
donatien 0:2ccb9960a044 187 {
donatien 0:2ccb9960a044 188 count+=3;
donatien 0:2ccb9960a044 189 }
donatien 0:2ccb9960a044 190 in++;
donatien 0:2ccb9960a044 191 }
donatien 0:2ccb9960a044 192
donatien 0:2ccb9960a044 193 count ++;
donatien 0:2ccb9960a044 194
donatien 0:2ccb9960a044 195 in = m_values[i];
donatien 0:2ccb9960a044 196 while( (*in != '\0') )
donatien 0:2ccb9960a044 197 {
donatien 0:2ccb9960a044 198 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~')
donatien 0:2ccb9960a044 199 {
donatien 0:2ccb9960a044 200 count++;
donatien 0:2ccb9960a044 201 }
donatien 0:2ccb9960a044 202 else if( *in == ' ' )
donatien 0:2ccb9960a044 203 {
donatien 0:2ccb9960a044 204 count++;
donatien 0:2ccb9960a044 205 }
donatien 0:2ccb9960a044 206 else
donatien 0:2ccb9960a044 207 {
donatien 0:2ccb9960a044 208 count+=3;
donatien 0:2ccb9960a044 209 }
donatien 0:2ccb9960a044 210 in++;
donatien 0:2ccb9960a044 211 }
donatien 0:2ccb9960a044 212 }
donatien 0:2ccb9960a044 213 return count;
donatien 0:2ccb9960a044 214 }
PBarrett 32:7716672463b9 215
PBarrett 32:7716672463b9 216
PBarrett 32:7716672463b9 217 /*virtual*/ void HTTPMap::writeReset()
PBarrett 32:7716672463b9 218 {
PBarrett 32:7716672463b9 219 m_pos = 0;
PBarrett 32:7716672463b9 220 }
PBarrett 32:7716672463b9 221
PBarrett 32:7716672463b9 222 /*virtual*/ int HTTPMap::write(const char* buf, size_t len)
PBarrett 32:7716672463b9 223 {
PBarrett 32:7716672463b9 224 size_t writeLen = MIN(len, m_size - 1 - m_pos);
PBarrett 32:7716672463b9 225 memcpy(m_str + m_pos, buf, writeLen);
PBarrett 32:7716672463b9 226 m_pos += writeLen;
PBarrett 32:7716672463b9 227 m_str[m_pos] = '\0';
PBarrett 32:7716672463b9 228 return OK;
PBarrett 32:7716672463b9 229 }
PBarrett 32:7716672463b9 230
PBarrett 32:7716672463b9 231 /*virtual*/ void HTTPMap::setDataType(const char* type) //Internet media type from Content-Type header
PBarrett 32:7716672463b9 232 {
PBarrett 32:7716672463b9 233
PBarrett 32:7716672463b9 234 }
PBarrett 32:7716672463b9 235
PBarrett 32:7716672463b9 236 /*virtual*/ void HTTPMap::setIsChunked(bool chunked) //From Transfer-Encoding header
PBarrett 32:7716672463b9 237 {
PBarrett 32:7716672463b9 238
PBarrett 32:7716672463b9 239 }
PBarrett 32:7716672463b9 240
PBarrett 32:7716672463b9 241 /*virtual*/ void HTTPMap::setDataLen(size_t len) //From Content-Length header, or if the transfer is chunked, next chunk length
PBarrett 32:7716672463b9 242 {
PBarrett 32:7716672463b9 243
PBarrett 32:7716672463b9 244 }
PBarrett 32:7716672463b9 245
PBarrett 32:7716672463b9 246
PBarrett 32:7716672463b9 247 bool HTTPMap::pop(char*& key, char*& value)
PBarrett 32:7716672463b9 248 {
PBarrett 32:7716672463b9 249 size_t j = m_read_pos;
PBarrett 32:7716672463b9 250
PBarrett 32:7716672463b9 251 key = &m_str[m_read_pos];
PBarrett 32:7716672463b9 252 while(m_read_pos < m_size && m_str[m_read_pos] != '=' && m_str[m_read_pos] != '\0')
PBarrett 32:7716672463b9 253 {
PBarrett 32:7716672463b9 254 m_str[j++] = UrlDecode(m_str, m_read_pos);
PBarrett 32:7716672463b9 255 m_read_pos++;
PBarrett 32:7716672463b9 256 }
PBarrett 32:7716672463b9 257
PBarrett 32:7716672463b9 258 if(m_read_pos >= m_size || m_str[m_read_pos] == '\0')
PBarrett 32:7716672463b9 259 {
PBarrett 32:7716672463b9 260 key = NULL;
PBarrett 32:7716672463b9 261 value = NULL;
PBarrett 32:7716672463b9 262 return false;
PBarrett 32:7716672463b9 263 }
PBarrett 32:7716672463b9 264
PBarrett 32:7716672463b9 265 m_str[j++] = '\0';
PBarrett 32:7716672463b9 266 j = ++m_read_pos;
PBarrett 32:7716672463b9 267 value = &m_str[m_read_pos];
PBarrett 32:7716672463b9 268
PBarrett 32:7716672463b9 269 while(m_read_pos < m_size-1 && m_str[m_read_pos] != '&' && m_str[m_read_pos] != '\0')
PBarrett 32:7716672463b9 270 {
PBarrett 32:7716672463b9 271 m_str[j++] = UrlDecode(m_str, m_read_pos);
PBarrett 32:7716672463b9 272 m_read_pos++;
PBarrett 32:7716672463b9 273 }
PBarrett 32:7716672463b9 274
PBarrett 32:7716672463b9 275 m_str[j++] = '\0';
PBarrett 32:7716672463b9 276
PBarrett 32:7716672463b9 277 return true;
PBarrett 32:7716672463b9 278 }
PBarrett 32:7716672463b9 279
PBarrett 32:7716672463b9 280
PBarrett 32:7716672463b9 281 bool HTTPMap::get(const char* key, char* val_buf, const size_t max)
PBarrett 32:7716672463b9 282 {
PBarrett 32:7716672463b9 283 size_t i, j = m_read_pos;
PBarrett 32:7716672463b9 284
PBarrett 32:7716672463b9 285 while(j < m_size && m_str[j] != '\0')
PBarrett 32:7716672463b9 286 {
PBarrett 32:7716672463b9 287 i = 0;
PBarrett 32:7716672463b9 288 while(key[i] == m_str[j] && j < m_size && m_str[j] != '=' && m_str[j] != '\0')
PBarrett 32:7716672463b9 289 {
PBarrett 32:7716672463b9 290 i++;
PBarrett 32:7716672463b9 291 j++;
PBarrett 32:7716672463b9 292 }
PBarrett 32:7716672463b9 293
PBarrett 32:7716672463b9 294 if(m_str[j] == '=')
PBarrett 32:7716672463b9 295 {
PBarrett 32:7716672463b9 296 j++;
PBarrett 32:7716672463b9 297 i = 0;
PBarrett 32:7716672463b9 298 while(i < max-1 && j < m_size && m_str[j] != '&' && m_str[j] != '\0')
PBarrett 32:7716672463b9 299 {
PBarrett 32:7716672463b9 300 val_buf[i++] = UrlDecode(m_str, j);
PBarrett 32:7716672463b9 301 j++;
PBarrett 32:7716672463b9 302 }
PBarrett 32:7716672463b9 303
PBarrett 32:7716672463b9 304 val_buf[i] = '\0';
PBarrett 32:7716672463b9 305
PBarrett 32:7716672463b9 306 return true;
PBarrett 32:7716672463b9 307 }
PBarrett 32:7716672463b9 308
PBarrett 32:7716672463b9 309 while(j < m_size && m_str[j] != '&' && m_str[j] != '\0')
PBarrett 32:7716672463b9 310 {
PBarrett 32:7716672463b9 311 val_buf[i++] = UrlDecode(m_str, j);
PBarrett 32:7716672463b9 312 j++;
PBarrett 32:7716672463b9 313 }
PBarrett 32:7716672463b9 314
PBarrett 32:7716672463b9 315 if(m_str[j] == '&')
PBarrett 32:7716672463b9 316 j++;
PBarrett 32:7716672463b9 317
PBarrett 32:7716672463b9 318 }
PBarrett 32:7716672463b9 319
PBarrett 32:7716672463b9 320 return false;
PBarrett 32:7716672463b9 321 }
PBarrett 32:7716672463b9 322
PBarrett 32:7716672463b9 323 static char UrlDecode(char* str, size_t& offset)
PBarrett 32:7716672463b9 324 {
PBarrett 32:7716672463b9 325 char c;
PBarrett 32:7716672463b9 326
PBarrett 32:7716672463b9 327 if(str[offset] == '%')
PBarrett 32:7716672463b9 328 {
PBarrett 32:7716672463b9 329 c = HexDecode(str[offset+2]) | (HexDecode(str[offset+1]) << 4);
PBarrett 32:7716672463b9 330 offset+=2;
PBarrett 32:7716672463b9 331
PBarrett 32:7716672463b9 332 if (c == 0)
PBarrett 32:7716672463b9 333 {
PBarrett 32:7716672463b9 334 return 0x1A; // SUB
PBarrett 32:7716672463b9 335 }
PBarrett 32:7716672463b9 336
PBarrett 32:7716672463b9 337 return c;
PBarrett 32:7716672463b9 338 }
PBarrett 32:7716672463b9 339 else if(str[offset] == '+')
PBarrett 32:7716672463b9 340 {
PBarrett 32:7716672463b9 341 return ' ';
PBarrett 32:7716672463b9 342 }
PBarrett 32:7716672463b9 343 else
PBarrett 32:7716672463b9 344 {
PBarrett 32:7716672463b9 345 return str[offset];
PBarrett 32:7716672463b9 346 }
PBarrett 32:7716672463b9 347 }
PBarrett 32:7716672463b9 348 static char HexDecode(char c)
PBarrett 32:7716672463b9 349 {
PBarrett 32:7716672463b9 350 if(c >= '0' && c <= '9')
PBarrett 32:7716672463b9 351 {
PBarrett 32:7716672463b9 352 return c - '0';
PBarrett 32:7716672463b9 353 }
PBarrett 32:7716672463b9 354 else if(c >= 'A' && c <= 'F')
PBarrett 32:7716672463b9 355 {
PBarrett 32:7716672463b9 356 return(c - ('A' - 0xA));
PBarrett 32:7716672463b9 357 }
PBarrett 32:7716672463b9 358 else if(c >= 'a' && c <= 'f')
PBarrett 32:7716672463b9 359 {
PBarrett 32:7716672463b9 360 return(c - ('a' - 0xA));
PBarrett 32:7716672463b9 361 }
PBarrett 32:7716672463b9 362 else
PBarrett 32:7716672463b9 363 {
PBarrett 32:7716672463b9 364 return 0x00;
PBarrett 32:7716672463b9 365 }
PBarrett 32:7716672463b9 366 }