HttpText.cpp

00001 /*
00002  * HttpText.cpp
00003  *
00004  *  Created on: Aug 16, 2016
00005  *      Author: Faheem Inayat
00006  * Created for: Renesas Electronics America HQ, Santa Clara, CA, USA
00007  * 
00008  * Copyright (c) 2016 Renesas Electronics America (REA) and Faheem Inayat
00009  */
00010 
00011 /* Copyright (C) 2012 mbed.org, MIT License
00012  *
00013  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00014  * and associated documentation files (the "Software"), to deal in the Software without restriction,
00015  * including without limitation the rights to use, copy, modify, merge, publish, distribute,
00016  * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
00017  * furnished to do so, subject to the following conditions:
00018  *
00019  * The above copyright notice and this permission notice shall be included in all copies or
00020  * substantial portions of the Software.
00021  *
00022  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00023  * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00024  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00025  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00026  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00027  */
00028 
00029 #include "HttpText.h"
00030 
00031 #include <cstring>
00032 
00033 #define OK 0
00034 
00035 using std::memcpy;
00036 using std::strncpy;
00037 using std::strlen;
00038 
00039 #define MIN(x,y) (((x)<(y))?(x):(y))
00040 
00041 HttpText::HttpText ( char* str )
00042         : m_str ( str ), m_pos ( 0 )
00043 {
00044     m_size = strlen ( str ) + 1;
00045     m_isChunked = false;
00046 }
00047 
00048 HttpText::HttpText ( char* str, size_t size )
00049         : m_str ( str ), m_size ( size ), m_pos ( 0 )
00050 {
00051     m_isChunked = false;
00052 }
00053 
00054 HttpText::~HttpText ()
00055 {
00056 }
00057 
00058 HttpText::HttpText ( const HttpText & )
00059 {
00060     m_str = NULL;
00061     m_pos = 0;
00062     m_size = 0;
00063     m_isChunked = false;
00064 }
00065 
00066 //IHTTPDataIn
00067 void HttpText::readReset ()
00068 {
00069     m_pos = 0;
00070 }
00071 
00072 int HttpText::read ( char* buf, size_t len, size_t* pReadLen )
00073 {
00074     *pReadLen = MIN( len, m_size - 1 - m_pos );
00075     memcpy ( buf, m_str + m_pos, *pReadLen );
00076     m_pos += *pReadLen;
00077     return OK;
00078 }
00079 
00080 int HttpText::getDataType ( char* type, size_t maxTypeLen ) //Internet media type for Content-Type header
00081 {
00082     strncpy ( type, "text/plain", maxTypeLen - 1 );
00083     type [ maxTypeLen - 1 ] = '\0';
00084     return OK;
00085 }
00086 
00087 bool HttpText::getIsChunked () //For Transfer-Encoding header
00088 {
00089     return m_isChunked;
00090 }
00091 
00092 size_t HttpText::getDataLen () //For Content-Length header
00093 {
00094     return m_size - 1;
00095 }
00096 
00097 //IHTTPDataOut
00098 void HttpText::writeReset ()
00099 {
00100     m_pos = 0;
00101 }
00102 
00103 int HttpText::write ( const char* buf, size_t len )
00104 {
00105     size_t writeLen = MIN( len, m_size - 1 - m_pos );
00106     memcpy ( m_str + m_pos, buf, writeLen );
00107     m_pos += writeLen;
00108     m_str [ m_pos ] = '\0';
00109     return OK;
00110 }
00111 
00112 void HttpText::setDataType ( const char * ) //Internet media type from Content-Type header
00113 {
00114 
00115 }
00116 
00117 void HttpText::setIsChunked ( bool chunked ) //From Transfer-Encoding header
00118 {
00119     m_isChunked = chunked;
00120 }
00121 
00122 void HttpText::setDataLen ( size_t ) //From Content-Length header, or if the transfer is chunked, next chunk length
00123 {
00124 //    m_pos = len;
00125 }
00126