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/*
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Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "HTTPFile.h"
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HTTPFile::HTTPFile(const char* path) : HTTPData(), m_fp(NULL), m_path(path), m_len(0), m_chunked(false)
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{
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}
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HTTPFile::~HTTPFile()
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{
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closeFile();
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}
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void HTTPFile::clear()
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{
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closeFile();
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//Force reopening
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}
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int HTTPFile::read(char* buf, int len)
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{
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if(!openFile("r")) //File does not exist, or I/O error...
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return 0;
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len = fread(buf, 1, len, m_fp);
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if( feof(m_fp) )
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{
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//File read completely, we can close it
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closeFile();
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}
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return len;
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}
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int HTTPFile::write(const char* buf, int len)
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{
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if(!openFile("w")) //File does not exist, or I/O error...
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return 0;
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len = fwrite(buf, 1, len, m_fp);
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if( (!m_chunked && (ftell(m_fp) >= m_len)) ||
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(m_chunked && !len) )
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{
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//File received completely, we can close it
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closeFile();
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}
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return len;
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}
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string HTTPFile::getDataType() //Internet media type for Content-Type header
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{
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return ""; //Unknown
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}
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void HTTPFile::setDataType(const string& type) //Internet media type from Content-Type header
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{
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//Do not really care here
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}
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bool HTTPFile::getIsChunked() //For Transfer-Encoding header
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{
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return false;
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}
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void HTTPFile::setIsChunked(bool chunked) //From Transfer-Encoding header
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{
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m_chunked = chunked;
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}
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int HTTPFile::getDataLen() //For Content-Length header
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{
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return m_len;
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}
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void HTTPFile::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
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{
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if(!m_chunked)
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m_len = len; //Useful so that we can close file when last byte is written
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}
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bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
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{
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if(m_fp)
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return true;
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m_fp = fopen(m_path.c_str(), mode);
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if(m_fp && mode[0]=='r')
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{
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//Seek EOF to get length
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fseek(m_fp, 0, SEEK_END);
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m_len = ftell(m_fp);
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fseek(m_fp, 0, SEEK_SET); //Goto SOF
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}
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if(!m_fp)
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return false;
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return true;
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}
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void HTTPFile::closeFile()
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{
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if(m_fp)
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fclose(m_fp);
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}
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