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Dependencies:   NTPClient_NetServices mbed

NetServices/services/http/client/data/HTTPFile.cpp@0:05ccbd4f84f1, 2013-12-02 (annotated)

Committer:
hendrikvincent
Date:
Mon Dec 02 09:01:23 2013 +0000
Revision:
0:05ccbd4f84f1
eerste programma;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hendrikvincent 0:05ccbd4f84f1 1
hendrikvincent 0:05ccbd4f84f1 2 /*
hendrikvincent 0:05ccbd4f84f1 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hendrikvincent 0:05ccbd4f84f1 4
hendrikvincent 0:05ccbd4f84f1 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hendrikvincent 0:05ccbd4f84f1 6 of this software and associated documentation files (the "Software"), to deal
hendrikvincent 0:05ccbd4f84f1 7 in the Software without restriction, including without limitation the rights
hendrikvincent 0:05ccbd4f84f1 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hendrikvincent 0:05ccbd4f84f1 9 copies of the Software, and to permit persons to whom the Software is
hendrikvincent 0:05ccbd4f84f1 10 furnished to do so, subject to the following conditions:
hendrikvincent 0:05ccbd4f84f1 11
hendrikvincent 0:05ccbd4f84f1 12 The above copyright notice and this permission notice shall be included in
hendrikvincent 0:05ccbd4f84f1 13 all copies or substantial portions of the Software.
hendrikvincent 0:05ccbd4f84f1 14
hendrikvincent 0:05ccbd4f84f1 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hendrikvincent 0:05ccbd4f84f1 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hendrikvincent 0:05ccbd4f84f1 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hendrikvincent 0:05ccbd4f84f1 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hendrikvincent 0:05ccbd4f84f1 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hendrikvincent 0:05ccbd4f84f1 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hendrikvincent 0:05ccbd4f84f1 21 THE SOFTWARE.
hendrikvincent 0:05ccbd4f84f1 22 */
hendrikvincent 0:05ccbd4f84f1 23
hendrikvincent 0:05ccbd4f84f1 24 #include "HTTPFile.h"
hendrikvincent 0:05ccbd4f84f1 25
hendrikvincent 0:05ccbd4f84f1 26 //#define __DEBUG
hendrikvincent 0:05ccbd4f84f1 27 #include "dbg/dbg.h"
hendrikvincent 0:05ccbd4f84f1 28
hendrikvincent 0:05ccbd4f84f1 29 HTTPFile::HTTPFile(const char* path) : HTTPData(), m_fp(NULL), m_path(path), m_len(0), m_chunked(false)
hendrikvincent 0:05ccbd4f84f1 30 {
hendrikvincent 0:05ccbd4f84f1 31
hendrikvincent 0:05ccbd4f84f1 32 }
hendrikvincent 0:05ccbd4f84f1 33
hendrikvincent 0:05ccbd4f84f1 34 HTTPFile::~HTTPFile()
hendrikvincent 0:05ccbd4f84f1 35 {
hendrikvincent 0:05ccbd4f84f1 36 closeFile();
hendrikvincent 0:05ccbd4f84f1 37 }
hendrikvincent 0:05ccbd4f84f1 38
hendrikvincent 0:05ccbd4f84f1 39 void HTTPFile::clear()
hendrikvincent 0:05ccbd4f84f1 40 {
hendrikvincent 0:05ccbd4f84f1 41 closeFile();
hendrikvincent 0:05ccbd4f84f1 42 //Force reopening
hendrikvincent 0:05ccbd4f84f1 43 }
hendrikvincent 0:05ccbd4f84f1 44
hendrikvincent 0:05ccbd4f84f1 45 int HTTPFile::read(char* buf, int len)
hendrikvincent 0:05ccbd4f84f1 46 {
hendrikvincent 0:05ccbd4f84f1 47 if(!openFile("r")) //File does not exist, or I/O error...
hendrikvincent 0:05ccbd4f84f1 48 return 0;
hendrikvincent 0:05ccbd4f84f1 49 len = fread(buf, 1, len, m_fp);
hendrikvincent 0:05ccbd4f84f1 50 if( feof(m_fp) )
hendrikvincent 0:05ccbd4f84f1 51 {
hendrikvincent 0:05ccbd4f84f1 52 //File read completely, we can close it
hendrikvincent 0:05ccbd4f84f1 53 closeFile();
hendrikvincent 0:05ccbd4f84f1 54 }
hendrikvincent 0:05ccbd4f84f1 55 return len;
hendrikvincent 0:05ccbd4f84f1 56 }
hendrikvincent 0:05ccbd4f84f1 57
hendrikvincent 0:05ccbd4f84f1 58 int HTTPFile::write(const char* buf, int len)
hendrikvincent 0:05ccbd4f84f1 59 {
hendrikvincent 0:05ccbd4f84f1 60 if(!openFile("w")) //File does not exist, or I/O error...
hendrikvincent 0:05ccbd4f84f1 61 return 0;
hendrikvincent 0:05ccbd4f84f1 62 len = fwrite(buf, 1, len, m_fp);
hendrikvincent 0:05ccbd4f84f1 63 DBG("Written %d bytes in %d\n", len, m_fp);
hendrikvincent 0:05ccbd4f84f1 64 if( (!m_chunked && (ftell(m_fp) >= m_len)) ||
hendrikvincent 0:05ccbd4f84f1 65 (m_chunked && !len) )
hendrikvincent 0:05ccbd4f84f1 66 {
hendrikvincent 0:05ccbd4f84f1 67 //File received completely, we can close it
hendrikvincent 0:05ccbd4f84f1 68 closeFile();
hendrikvincent 0:05ccbd4f84f1 69 }
hendrikvincent 0:05ccbd4f84f1 70 return len;
hendrikvincent 0:05ccbd4f84f1 71 }
hendrikvincent 0:05ccbd4f84f1 72
hendrikvincent 0:05ccbd4f84f1 73 string HTTPFile::getDataType() //Internet media type for Content-Type header
hendrikvincent 0:05ccbd4f84f1 74 {
hendrikvincent 0:05ccbd4f84f1 75 return ""; //Unknown
hendrikvincent 0:05ccbd4f84f1 76 }
hendrikvincent 0:05ccbd4f84f1 77
hendrikvincent 0:05ccbd4f84f1 78 void HTTPFile::setDataType(const string& type) //Internet media type from Content-Type header
hendrikvincent 0:05ccbd4f84f1 79 {
hendrikvincent 0:05ccbd4f84f1 80 //Do not really care here
hendrikvincent 0:05ccbd4f84f1 81 }
hendrikvincent 0:05ccbd4f84f1 82
hendrikvincent 0:05ccbd4f84f1 83 bool HTTPFile::getIsChunked() //For Transfer-Encoding header
hendrikvincent 0:05ccbd4f84f1 84 {
hendrikvincent 0:05ccbd4f84f1 85 return false;
hendrikvincent 0:05ccbd4f84f1 86 }
hendrikvincent 0:05ccbd4f84f1 87
hendrikvincent 0:05ccbd4f84f1 88 void HTTPFile::setIsChunked(bool chunked) //From Transfer-Encoding header
hendrikvincent 0:05ccbd4f84f1 89 {
hendrikvincent 0:05ccbd4f84f1 90 m_chunked = chunked;
hendrikvincent 0:05ccbd4f84f1 91 }
hendrikvincent 0:05ccbd4f84f1 92
hendrikvincent 0:05ccbd4f84f1 93 int HTTPFile::getDataLen() //For Content-Length header
hendrikvincent 0:05ccbd4f84f1 94 {
hendrikvincent 0:05ccbd4f84f1 95 return m_len;
hendrikvincent 0:05ccbd4f84f1 96 }
hendrikvincent 0:05ccbd4f84f1 97
hendrikvincent 0:05ccbd4f84f1 98 void HTTPFile::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
hendrikvincent 0:05ccbd4f84f1 99 {
hendrikvincent 0:05ccbd4f84f1 100 if(!m_chunked)
hendrikvincent 0:05ccbd4f84f1 101 m_len = len; //Useful so that we can close file when last byte is written
hendrikvincent 0:05ccbd4f84f1 102 }
hendrikvincent 0:05ccbd4f84f1 103
hendrikvincent 0:05ccbd4f84f1 104 bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
hendrikvincent 0:05ccbd4f84f1 105 {
hendrikvincent 0:05ccbd4f84f1 106 if(m_fp)
hendrikvincent 0:05ccbd4f84f1 107 return true;
hendrikvincent 0:05ccbd4f84f1 108
hendrikvincent 0:05ccbd4f84f1 109 m_fp = fopen(m_path.c_str(), mode);
hendrikvincent 0:05ccbd4f84f1 110 if(m_fp && mode[0]=='r')
hendrikvincent 0:05ccbd4f84f1 111 {
hendrikvincent 0:05ccbd4f84f1 112 //Seek EOF to get length
hendrikvincent 0:05ccbd4f84f1 113 fseek(m_fp, 0, SEEK_END);
hendrikvincent 0:05ccbd4f84f1 114 m_len = ftell(m_fp);
hendrikvincent 0:05ccbd4f84f1 115 fseek(m_fp, 0, SEEK_SET); //Goto SOF
hendrikvincent 0:05ccbd4f84f1 116 }
hendrikvincent 0:05ccbd4f84f1 117
hendrikvincent 0:05ccbd4f84f1 118 DBG("fd = %d\n", m_fp);
hendrikvincent 0:05ccbd4f84f1 119
hendrikvincent 0:05ccbd4f84f1 120 if(!m_fp)
hendrikvincent 0:05ccbd4f84f1 121 return false;
hendrikvincent 0:05ccbd4f84f1 122
hendrikvincent 0:05ccbd4f84f1 123 return true;
hendrikvincent 0:05ccbd4f84f1 124 }
hendrikvincent 0:05ccbd4f84f1 125
hendrikvincent 0:05ccbd4f84f1 126 void HTTPFile::closeFile()
hendrikvincent 0:05ccbd4f84f1 127 {
hendrikvincent 0:05ccbd4f84f1 128 if(m_fp)
hendrikvincent 0:05ccbd4f84f1 129 fclose(m_fp);
hendrikvincent 0:05ccbd4f84f1 130 }