joshua Elsdon / Mbed 2 deprecated Email2Screen

Mac addr added ICRS

Dependencies:   mbed

Fork of Email2Screen by Oliver Mattos

NetServicesProxy/services/http/client/data/HTTPFile.cpp@1:b38b745d1ea8, 2013-11-20 (annotated)

Committer:
je310
Date:
Wed Nov 20 21:22:22 2013 +0000
Revision:
1:b38b745d1ea8
Parent:
0:1619a6b826d7 
This is a maced version of olivers code ICRS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Hello1024 0:1619a6b826d7 1
Hello1024 0:1619a6b826d7 2 /*
Hello1024 0:1619a6b826d7 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
Hello1024 0:1619a6b826d7 4
Hello1024 0:1619a6b826d7 5 Permission is hereby granted, free of charge, to any person obtaining a copy
Hello1024 0:1619a6b826d7 6 of this software and associated documentation files (the "Software"), to deal
Hello1024 0:1619a6b826d7 7 in the Software without restriction, including without limitation the rights
Hello1024 0:1619a6b826d7 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
Hello1024 0:1619a6b826d7 9 copies of the Software, and to permit persons to whom the Software is
Hello1024 0:1619a6b826d7 10 furnished to do so, subject to the following conditions:
Hello1024 0:1619a6b826d7 11
Hello1024 0:1619a6b826d7 12 The above copyright notice and this permission notice shall be included in
Hello1024 0:1619a6b826d7 13 all copies or substantial portions of the Software.
Hello1024 0:1619a6b826d7 14
Hello1024 0:1619a6b826d7 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
Hello1024 0:1619a6b826d7 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
Hello1024 0:1619a6b826d7 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
Hello1024 0:1619a6b826d7 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
Hello1024 0:1619a6b826d7 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
Hello1024 0:1619a6b826d7 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
Hello1024 0:1619a6b826d7 21 THE SOFTWARE.
Hello1024 0:1619a6b826d7 22 */
Hello1024 0:1619a6b826d7 23
Hello1024 0:1619a6b826d7 24 #include "HTTPFile.h"
Hello1024 0:1619a6b826d7 25
Hello1024 0:1619a6b826d7 26 //#define __DEBUG
Hello1024 0:1619a6b826d7 27 #include "dbg/dbg.h"
Hello1024 0:1619a6b826d7 28
Hello1024 0:1619a6b826d7 29 HTTPFile::HTTPFile(const char* path) : HTTPData(), m_fp(NULL), m_path(path), m_len(0), m_chunked(false)
Hello1024 0:1619a6b826d7 30 {
Hello1024 0:1619a6b826d7 31
Hello1024 0:1619a6b826d7 32 }
Hello1024 0:1619a6b826d7 33
Hello1024 0:1619a6b826d7 34 HTTPFile::~HTTPFile()
Hello1024 0:1619a6b826d7 35 {
Hello1024 0:1619a6b826d7 36 closeFile();
Hello1024 0:1619a6b826d7 37 }
Hello1024 0:1619a6b826d7 38
Hello1024 0:1619a6b826d7 39 void HTTPFile::clear()
Hello1024 0:1619a6b826d7 40 {
Hello1024 0:1619a6b826d7 41 closeFile();
Hello1024 0:1619a6b826d7 42 //Force reopening
Hello1024 0:1619a6b826d7 43 }
Hello1024 0:1619a6b826d7 44
Hello1024 0:1619a6b826d7 45 int HTTPFile::read(char* buf, int len)
Hello1024 0:1619a6b826d7 46 {
Hello1024 0:1619a6b826d7 47 if(!openFile("r")) //File does not exist, or I/O error...
Hello1024 0:1619a6b826d7 48 return 0;
Hello1024 0:1619a6b826d7 49 len = fread(buf, 1, len, m_fp);
Hello1024 0:1619a6b826d7 50 if( feof(m_fp) )
Hello1024 0:1619a6b826d7 51 {
Hello1024 0:1619a6b826d7 52 //File read completely, we can close it
Hello1024 0:1619a6b826d7 53 closeFile();
Hello1024 0:1619a6b826d7 54 }
Hello1024 0:1619a6b826d7 55 return len;
Hello1024 0:1619a6b826d7 56 }
Hello1024 0:1619a6b826d7 57
Hello1024 0:1619a6b826d7 58 int HTTPFile::write(const char* buf, int len)
Hello1024 0:1619a6b826d7 59 {
Hello1024 0:1619a6b826d7 60 if(!openFile("w")) //File does not exist, or I/O error...
Hello1024 0:1619a6b826d7 61 return 0;
Hello1024 0:1619a6b826d7 62 len = fwrite(buf, 1, len, m_fp);
Hello1024 0:1619a6b826d7 63 DBG("Written %d bytes in %d\n", len, m_fp);
Hello1024 0:1619a6b826d7 64 if( (!m_chunked && (ftell(m_fp) >= m_len)) ||
Hello1024 0:1619a6b826d7 65 (m_chunked && !len) )
Hello1024 0:1619a6b826d7 66 {
Hello1024 0:1619a6b826d7 67 //File received completely, we can close it
Hello1024 0:1619a6b826d7 68 closeFile();
Hello1024 0:1619a6b826d7 69 }
Hello1024 0:1619a6b826d7 70 return len;
Hello1024 0:1619a6b826d7 71 }
Hello1024 0:1619a6b826d7 72
Hello1024 0:1619a6b826d7 73 string HTTPFile::getDataType() //Internet media type for Content-Type header
Hello1024 0:1619a6b826d7 74 {
Hello1024 0:1619a6b826d7 75 return ""; //Unknown
Hello1024 0:1619a6b826d7 76 }
Hello1024 0:1619a6b826d7 77
Hello1024 0:1619a6b826d7 78 void HTTPFile::setDataType(const string& type) //Internet media type from Content-Type header
Hello1024 0:1619a6b826d7 79 {
Hello1024 0:1619a6b826d7 80 //Do not really care here
Hello1024 0:1619a6b826d7 81 }
Hello1024 0:1619a6b826d7 82
Hello1024 0:1619a6b826d7 83 bool HTTPFile::getIsChunked() //For Transfer-Encoding header
Hello1024 0:1619a6b826d7 84 {
Hello1024 0:1619a6b826d7 85 return false;
Hello1024 0:1619a6b826d7 86 }
Hello1024 0:1619a6b826d7 87
Hello1024 0:1619a6b826d7 88 void HTTPFile::setIsChunked(bool chunked) //From Transfer-Encoding header
Hello1024 0:1619a6b826d7 89 {
Hello1024 0:1619a6b826d7 90 m_chunked = chunked;
Hello1024 0:1619a6b826d7 91 }
Hello1024 0:1619a6b826d7 92
Hello1024 0:1619a6b826d7 93 int HTTPFile::getDataLen() //For Content-Length header
Hello1024 0:1619a6b826d7 94 {
Hello1024 0:1619a6b826d7 95 return m_len;
Hello1024 0:1619a6b826d7 96 }
Hello1024 0:1619a6b826d7 97
Hello1024 0:1619a6b826d7 98 void HTTPFile::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
Hello1024 0:1619a6b826d7 99 {
Hello1024 0:1619a6b826d7 100 if(!m_chunked)
Hello1024 0:1619a6b826d7 101 m_len = len; //Useful so that we can close file when last byte is written
Hello1024 0:1619a6b826d7 102 }
Hello1024 0:1619a6b826d7 103
Hello1024 0:1619a6b826d7 104 bool HTTPFile::openFile(const char* mode) //true on success, false otherwise
Hello1024 0:1619a6b826d7 105 {
Hello1024 0:1619a6b826d7 106 if(m_fp)
Hello1024 0:1619a6b826d7 107 return true;
Hello1024 0:1619a6b826d7 108
Hello1024 0:1619a6b826d7 109 m_fp = fopen(m_path.c_str(), mode);
Hello1024 0:1619a6b826d7 110 if(m_fp && mode[0]=='r')
Hello1024 0:1619a6b826d7 111 {
Hello1024 0:1619a6b826d7 112 //Seek EOF to get length
Hello1024 0:1619a6b826d7 113 fseek(m_fp, 0, SEEK_END);
Hello1024 0:1619a6b826d7 114 m_len = ftell(m_fp);
Hello1024 0:1619a6b826d7 115 fseek(m_fp, 0, SEEK_SET); //Goto SOF
Hello1024 0:1619a6b826d7 116 }
Hello1024 0:1619a6b826d7 117
Hello1024 0:1619a6b826d7 118 DBG("fd = %d\n", m_fp);
Hello1024 0:1619a6b826d7 119
Hello1024 0:1619a6b826d7 120 if(!m_fp)
Hello1024 0:1619a6b826d7 121 return false;
Hello1024 0:1619a6b826d7 122
Hello1024 0:1619a6b826d7 123 return true;
Hello1024 0:1619a6b826d7 124 }
Hello1024 0:1619a6b826d7 125
Hello1024 0:1619a6b826d7 126 void HTTPFile::closeFile()
Hello1024 0:1619a6b826d7 127 {
Hello1024 0:1619a6b826d7 128 if(m_fp)
Hello1024 0:1619a6b826d7 129 fclose(m_fp);
Hello1024 0:1619a6b826d7 130 }