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HTTPMap.cpp
00001 /* HTTPMap.cpp */ 00002 /* Copyright (C) 2012 mbed.org, MIT License 00003 * 00004 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00005 * and associated documentation files (the "Software"), to deal in the Software without restriction, 00006 * including without limitation the rights to use, copy, modify, merge, publish, distribute, 00007 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 00008 * furnished to do so, subject to the following conditions: 00009 * 00010 * The above copyright notice and this permission notice shall be included in all copies or 00011 * substantial portions of the Software. 00012 * 00013 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00014 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00015 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00016 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00017 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00018 */ 00019 00020 #include "HTTPMap.h" 00021 00022 #include <cstring> 00023 00024 #include <cctype> 00025 00026 #define OK 0 00027 00028 using std::strncpy; 00029 00030 HTTPMap::HTTPMap() : m_pos(0), m_count(0) 00031 { 00032 00033 } 00034 00035 void HTTPMap::put(const char* key, const char* value) 00036 { 00037 if(m_count >= HTTPMAP_TABLE_SIZE) 00038 { 00039 return; 00040 } 00041 m_keys[m_count] = key; 00042 m_values[m_count] = value; 00043 m_count++; 00044 } 00045 00046 void HTTPMap::clear() 00047 { 00048 m_count = 0; 00049 m_pos = 0; 00050 } 00051 00052 /*virtual*/ void HTTPMap::readReset() 00053 { 00054 m_pos = 0; 00055 } 00056 00057 /*virtual*/ int HTTPMap::read(char* buf, size_t len, size_t* pReadLen) 00058 { 00059 if(m_pos >= m_count) 00060 { 00061 *pReadLen = 0; 00062 m_pos = 0; 00063 return OK; 00064 } 00065 00066 //URL encode 00067 char* out = buf; 00068 const char* in = m_keys[m_pos]; 00069 if( (m_pos != 0) && ((size_t)(out - buf) < len - 1) ) 00070 { 00071 *out='&'; 00072 out++; 00073 } 00074 00075 while( (*in != '\0') && ((size_t)(out - buf) < len - 3) ) 00076 { 00077 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~') 00078 { 00079 *out = *in; 00080 out++; 00081 } 00082 else if( *in == ' ' ) 00083 { 00084 *out='+'; 00085 out++; 00086 } 00087 else 00088 { 00089 char hex[] = "0123456789abcdef"; 00090 *out='%'; 00091 out++; 00092 *out=hex[(*in>>4)&0xf]; 00093 out++; 00094 *out=hex[(*in)&0xf]; 00095 out++; 00096 } 00097 in++; 00098 } 00099 00100 if( (size_t)(out - buf) < len - 1 ) 00101 { 00102 *out='='; 00103 out++; 00104 } 00105 00106 in = m_values[m_pos]; 00107 while( (*in != '\0') && ((size_t)(out - buf) < len - 3) ) 00108 { 00109 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~') 00110 { 00111 *out = *in; 00112 out++; 00113 } 00114 else if( *in == ' ' ) 00115 { 00116 *out='+'; 00117 out++; 00118 } 00119 else 00120 { 00121 char hex[] = "0123456789abcdef"; 00122 *out='%'; 00123 out++; 00124 *out=hex[(*in>>4)&0xf]; 00125 out++; 00126 *out=hex[(*in)&0xf]; 00127 out++; 00128 } 00129 in++; 00130 } 00131 00132 *pReadLen = out - buf; 00133 00134 m_pos++; 00135 return OK; 00136 } 00137 00138 /*virtual*/ int HTTPMap::getDataType(char* type, size_t maxTypeLen) //Internet media type for Content-Type header 00139 { 00140 strncpy(type, "application/x-www-form-urlencoded", maxTypeLen-1); 00141 type[maxTypeLen-1] = '\0'; 00142 return OK; 00143 } 00144 00145 /*virtual*/ bool HTTPMap::getIsChunked() //For Transfer-Encoding header 00146 { 00147 return false; ////Data is computed one key/value pair at a time 00148 } 00149 00150 /*virtual*/ size_t HTTPMap::getDataLen() //For Content-Length header 00151 { 00152 size_t count = 0; 00153 for(size_t i = 0; i< m_count; i++) 00154 { 00155 //URL encode 00156 const char* in = m_keys[i]; 00157 if( i != 0 ) 00158 { 00159 count++; 00160 } 00161 00162 while( (*in != '\0') ) 00163 { 00164 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~') 00165 { 00166 count++; 00167 } 00168 else if( *in == ' ' ) 00169 { 00170 count++; 00171 } 00172 else 00173 { 00174 count+=3; 00175 } 00176 in++; 00177 } 00178 00179 count ++; 00180 00181 in = m_values[i]; 00182 while( (*in != '\0') ) 00183 { 00184 if (std::isalnum(*in) || *in == '-' || *in == '_' || *in == '.' || *in == '~') 00185 { 00186 count++; 00187 } 00188 else if( *in == ' ' ) 00189 { 00190 count++; 00191 } 00192 else 00193 { 00194 count+=3; 00195 } 00196 in++; 00197 } 00198 } 00199 return count; 00200 }
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