Rod Coleman / NetServSB2

Netservices modded to read fragmented HTTP respsonse/payload from special purpose server - 180 bytes only

services/http/client/data/HTTPFile.cpp@0:850eacf3e945, 2011-09-08 (annotated)

Committer:
RodColeman
Date:
Thu Sep 08 10:48:09 2011 +0000
Revision:
0:850eacf3e945
revised fixed length to 178 bytes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
RodColeman 0:850eacf3e945 1
RodColeman 0:850eacf3e945 2 /*
RodColeman 0:850eacf3e945 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
RodColeman 0:850eacf3e945 4
RodColeman 0:850eacf3e945 5 Permission is hereby granted, free of charge, to any person obtaining a copy
RodColeman 0:850eacf3e945 6 of this software and associated documentation files (the "Software"), to deal
RodColeman 0:850eacf3e945 7 in the Software without restriction, including without limitation the rights
RodColeman 0:850eacf3e945 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
RodColeman 0:850eacf3e945 9 copies of the Software, and to permit persons to whom the Software is
RodColeman 0:850eacf3e945 10 furnished to do so, subject to the following conditions:
RodColeman 0:850eacf3e945 11
RodColeman 0:850eacf3e945 12 The above copyright notice and this permission notice shall be included in
RodColeman 0:850eacf3e945 13 all copies or substantial portions of the Software.
RodColeman 0:850eacf3e945 14
RodColeman 0:850eacf3e945 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
RodColeman 0:850eacf3e945 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
RodColeman 0:850eacf3e945 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
RodColeman 0:850eacf3e945 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
RodColeman 0:850eacf3e945 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
RodColeman 0:850eacf3e945 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
RodColeman 0:850eacf3e945 21 THE SOFTWARE.
RodColeman 0:850eacf3e945 22 */
RodColeman 0:850eacf3e945 23
RodColeman 0:850eacf3e945 24 #include "HTTPFile.h"
RodColeman 0:850eacf3e945 25
RodColeman 0:850eacf3e945 26 //#define __DEBUG
RodColeman 0:850eacf3e945 27 #include "dbg/dbg.h"
RodColeman 0:850eacf3e945 28
RodColeman 0:850eacf3e945 29 HTTPFile::HTTPFile(const char* path) : HTTPData(), m_fp(NULL), m_path(path), m_len(0), m_chunked(false)
RodColeman 0:850eacf3e945 30 {
RodColeman 0:850eacf3e945 31
RodColeman 0:850eacf3e945 32 }
RodColeman 0:850eacf3e945 33
RodColeman 0:850eacf3e945 34 HTTPFile::~HTTPFile()
RodColeman 0:850eacf3e945 35 {
RodColeman 0:850eacf3e945 36 closeFile();
RodColeman 0:850eacf3e945 37 }
RodColeman 0:850eacf3e945 38
RodColeman 0:850eacf3e945 39 void HTTPFile::clear()
RodColeman 0:850eacf3e945 40 {
RodColeman 0:850eacf3e945 41 closeFile();
RodColeman 0:850eacf3e945 42 //Force reopening
RodColeman 0:850eacf3e945 43 }
RodColeman 0:850eacf3e945 44
RodColeman 0:850eacf3e945 45 int HTTPFile::read(char* buf, int len)
RodColeman 0:850eacf3e945 46 {
RodColeman 0:850eacf3e945 47 if(!openFile("r")) //File does not exist, or I/O error...
RodColeman 0:850eacf3e945 48 return 0;
RodColeman 0:850eacf3e945 49 len = fread(buf, 1, len, m_fp);
RodColeman 0:850eacf3e945 50 if( feof(m_fp) )
RodColeman 0:850eacf3e945 51 {
RodColeman 0:850eacf3e945 52 //File read completely, we can close it
RodColeman 0:850eacf3e945 53 closeFile();
RodColeman 0:850eacf3e945 54 }
RodColeman 0:850eacf3e945 55 return len;
RodColeman 0:850eacf3e945 56 }
RodColeman 0:850eacf3e945 57
RodColeman 0:850eacf3e945 58 int HTTPFile::write(const char* buf, int len)
RodColeman 0:850eacf3e945 59 {
RodColeman 0:850eacf3e945 60 if(!openFile("w")) //File does not exist, or I/O error...
RodColeman 0:850eacf3e945 61 return 0;
RodColeman 0:850eacf3e945 62 len = fwrite(buf, 1, len, m_fp);
RodColeman 0:850eacf3e945 63 DBG("Written %d bytes in %d\n", len, m_fp);
RodColeman 0:850eacf3e945 64 if( (!m_chunked && (ftell(m_fp) >= m_len)) ||
RodColeman 0:850eacf3e945 65 (m_chunked && !len) )
RodColeman 0:850eacf3e945 66 {
RodColeman 0:850eacf3e945 67 //File received completely, we can close it
RodColeman 0:850eacf3e945 68 closeFile();
RodColeman 0:850eacf3e945 69 }
RodColeman 0:850eacf3e945 70 return len;
RodColeman 0:850eacf3e945 71 }
RodColeman 0:850eacf3e945 72
RodColeman 0:850eacf3e945 73 string HTTPFile::getDataType() //Internet media type for Content-Type header
RodColeman 0:850eacf3e945 74 {
RodColeman 0:850eacf3e945 75 return ""; //Unknown
RodColeman 0:850eacf3e945 76 }
RodColeman 0:850eacf3e945 77
RodColeman 0:850eacf3e945 78 void HTTPFile::setDataType(const string& type) //Internet media type from Content-Type header
RodColeman 0:850eacf3e945 79 {
RodColeman 0:850eacf3e945 80 //Do not really care here
RodColeman 0:850eacf3e945 81 }
RodColeman 0:850eacf3e945 82
RodColeman 0:850eacf3e945 83 bool HTTPFile::getIsChunked() //For Transfer-Encoding header
RodColeman 0:850eacf3e945 84 {
RodColeman 0:850eacf3e945 85 return false;
RodColeman 0:850eacf3e945 86 }
RodColeman 0:850eacf3e945 87
RodColeman 0:850eacf3e945 88 void HTTPFile::setIsChunked(bool chunked) //From Transfer-Encoding header
RodColeman 0:850eacf3e945 89 {
RodColeman 0:850eacf3e945 90 m_chunked = chunked;
RodColeman 0:850eacf3e945 91 }
RodColeman 0:850eacf3e945 92
RodColeman 0:850eacf3e945 93 int HTTPFile::getDataLen() //For Content-Length header
RodColeman 0:850eacf3e945 94 {
RodColeman 0:850eacf3e945 95 return m_len;
RodColeman 0:850eacf3e945 96 }
RodColeman 0:850eacf3e945 97
RodColeman 0:850eacf3e945 98 void HTTPFile::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
RodColeman 0:850eacf3e945 99 {
RodColeman 0:850eacf3e945 100 if(!m_chunked)
RodColeman 0:850eacf3e945 101 m_len = len; //Useful so that we can close file when last byte is written
RodColeman 0:850eacf3e945 102 }
RodColeman 0:850eacf3e945 103
RodColeman 0:850eacf3e945 104 bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
RodColeman 0:850eacf3e945 105 {
RodColeman 0:850eacf3e945 106 if(m_fp)
RodColeman 0:850eacf3e945 107 return true;
RodColeman 0:850eacf3e945 108
RodColeman 0:850eacf3e945 109 m_fp = fopen(m_path.c_str(), mode);
RodColeman 0:850eacf3e945 110 if(m_fp && mode[0]=='r')
RodColeman 0:850eacf3e945 111 {
RodColeman 0:850eacf3e945 112 //Seek EOF to get length
RodColeman 0:850eacf3e945 113 fseek(m_fp, 0, SEEK_END);
RodColeman 0:850eacf3e945 114 m_len = ftell(m_fp);
RodColeman 0:850eacf3e945 115 fseek(m_fp, 0, SEEK_SET); //Goto SOF
RodColeman 0:850eacf3e945 116 }
RodColeman 0:850eacf3e945 117
RodColeman 0:850eacf3e945 118 DBG("fd = %d\n", m_fp);
RodColeman 0:850eacf3e945 119
RodColeman 0:850eacf3e945 120 if(!m_fp)
RodColeman 0:850eacf3e945 121 return false;
RodColeman 0:850eacf3e945 122
RodColeman 0:850eacf3e945 123 return true;
RodColeman 0:850eacf3e945 124 }
RodColeman 0:850eacf3e945 125
RodColeman 0:850eacf3e945 126 void HTTPFile::closeFile()
RodColeman 0:850eacf3e945 127 {
RodColeman 0:850eacf3e945 128 if(m_fp)
RodColeman 0:850eacf3e945 129 fclose(m_fp);
RodColeman 0:850eacf3e945 130 }