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Copy of NetServicesMin with the HTTP Client library. Includes modification for HTTP servers which send the HTTP status line in its own packet.

services/http/client/data/HTTPMap.cpp@0:18dd877d2c77, 2011-05-26 (annotated)

Committer:: andrewbonney
Date:: Thu May 26 10:02:40 2011 +0000
Revision:: 0:18dd877d2c77

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User	Revision	Line number	New contents of line
andrewbonney	0:18dd877d2c77	1
andrewbonney	0:18dd877d2c77	2	/*
andrewbonney	0:18dd877d2c77	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
andrewbonney	0:18dd877d2c77	4
andrewbonney	0:18dd877d2c77	5	Permission is hereby granted, free of charge, to any person obtaining a copy
andrewbonney	0:18dd877d2c77	6	of this software and associated documentation files (the "Software"), to deal
andrewbonney	0:18dd877d2c77	7	in the Software without restriction, including without limitation the rights
andrewbonney	0:18dd877d2c77	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
andrewbonney	0:18dd877d2c77	9	copies of the Software, and to permit persons to whom the Software is
andrewbonney	0:18dd877d2c77	10	furnished to do so, subject to the following conditions:
andrewbonney	0:18dd877d2c77	11
andrewbonney	0:18dd877d2c77	12	The above copyright notice and this permission notice shall be included in
andrewbonney	0:18dd877d2c77	13	all copies or substantial portions of the Software.
andrewbonney	0:18dd877d2c77	14
andrewbonney	0:18dd877d2c77	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
andrewbonney	0:18dd877d2c77	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
andrewbonney	0:18dd877d2c77	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
andrewbonney	0:18dd877d2c77	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
andrewbonney	0:18dd877d2c77	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
andrewbonney	0:18dd877d2c77	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
andrewbonney	0:18dd877d2c77	21	THE SOFTWARE.
andrewbonney	0:18dd877d2c77	22	*/
andrewbonney	0:18dd877d2c77	23
andrewbonney	0:18dd877d2c77	24	#include "HTTPMap.h"
andrewbonney	0:18dd877d2c77	25	#include "../../util/url.h"
andrewbonney	0:18dd877d2c77	26
andrewbonney	0:18dd877d2c77	27	//#define __DEBUG
andrewbonney	0:18dd877d2c77	28	#include "dbg/dbg.h"
andrewbonney	0:18dd877d2c77	29
andrewbonney	0:18dd877d2c77	30	HTTPMap::HTTPMap(const string& keyValueSep /= "="/, const string& pairSep /= "&"/) :
andrewbonney	0:18dd877d2c77	31	HTTPData(), Dictionary(), m_buf(), m_len(0), m_chunked(false), m_keyValueSep(keyValueSep), m_pairSep(pairSep)
andrewbonney	0:18dd877d2c77	32	{
andrewbonney	0:18dd877d2c77	33
andrewbonney	0:18dd877d2c77	34	}
andrewbonney	0:18dd877d2c77	35
andrewbonney	0:18dd877d2c77	36	HTTPMap::~HTTPMap()
andrewbonney	0:18dd877d2c77	37	{
andrewbonney	0:18dd877d2c77	38
andrewbonney	0:18dd877d2c77	39	}
andrewbonney	0:18dd877d2c77	40
andrewbonney	0:18dd877d2c77	41	void HTTPMap::clear()
andrewbonney	0:18dd877d2c77	42	{
andrewbonney	0:18dd877d2c77	43	m_buf.clear();
andrewbonney	0:18dd877d2c77	44	}
andrewbonney	0:18dd877d2c77	45
andrewbonney	0:18dd877d2c77	46	int HTTPMap::read(char* buf, int len)
andrewbonney	0:18dd877d2c77	47	{
andrewbonney	0:18dd877d2c77	48	memcpy( (void)buf, (void)m_buf.data(), len );
andrewbonney	0:18dd877d2c77	49	m_buf.erase(0, len); //Erase these chars
andrewbonney	0:18dd877d2c77	50	return len;
andrewbonney	0:18dd877d2c77	51	}
andrewbonney	0:18dd877d2c77	52
andrewbonney	0:18dd877d2c77	53	int HTTPMap::write(const char* buf, int len)
andrewbonney	0:18dd877d2c77	54	{
andrewbonney	0:18dd877d2c77	55	m_buf.append( buf, len );
andrewbonney	0:18dd877d2c77	56	if( ( m_chunked && !len ) \|\|
andrewbonney	0:18dd877d2c77	57	( !m_chunked && ( m_buf.length() >= m_len ) ) ) //Last chunk or EOF
andrewbonney	0:18dd877d2c77	58	{
andrewbonney	0:18dd877d2c77	59	parseString();
andrewbonney	0:18dd877d2c77	60	}
andrewbonney	0:18dd877d2c77	61	return len;
andrewbonney	0:18dd877d2c77	62	}
andrewbonney	0:18dd877d2c77	63
andrewbonney	0:18dd877d2c77	64	string HTTPMap::getDataType() //Internet media type for Content-Type header
andrewbonney	0:18dd877d2c77	65	{
andrewbonney	0:18dd877d2c77	66	return "application/x-www-form-urlencoded";
andrewbonney	0:18dd877d2c77	67	}
andrewbonney	0:18dd877d2c77	68
andrewbonney	0:18dd877d2c77	69	void HTTPMap::setDataType(const string& type) //Internet media type from Content-Type header
andrewbonney	0:18dd877d2c77	70	{
andrewbonney	0:18dd877d2c77	71	//Do not really care here
andrewbonney	0:18dd877d2c77	72	}
andrewbonney	0:18dd877d2c77	73
andrewbonney	0:18dd877d2c77	74	int HTTPMap::getDataLen() //For Content-Length header
andrewbonney	0:18dd877d2c77	75	{
andrewbonney	0:18dd877d2c77	76	//This will be called before any read occurs, so let's generate our string object
andrewbonney	0:18dd877d2c77	77	//Generate string
andrewbonney	0:18dd877d2c77	78	generateString();
andrewbonney	0:18dd877d2c77	79	return m_len;
andrewbonney	0:18dd877d2c77	80	}
andrewbonney	0:18dd877d2c77	81
andrewbonney	0:18dd877d2c77	82	bool HTTPMap::getIsChunked() //For Transfer-Encoding header
andrewbonney	0:18dd877d2c77	83	{
andrewbonney	0:18dd877d2c77	84	return false; //We don't want to chunk this
andrewbonney	0:18dd877d2c77	85	}
andrewbonney	0:18dd877d2c77	86
andrewbonney	0:18dd877d2c77	87	void HTTPMap::setIsChunked(bool chunked) //From Transfer-Encoding header
andrewbonney	0:18dd877d2c77	88	{
andrewbonney	0:18dd877d2c77	89	m_chunked = chunked;
andrewbonney	0:18dd877d2c77	90	}
andrewbonney	0:18dd877d2c77	91
andrewbonney	0:18dd877d2c77	92	void HTTPMap::setDataLen(int len) //From Content-Length header, or if the transfer is chunked, next chunk length
andrewbonney	0:18dd877d2c77	93	{
andrewbonney	0:18dd877d2c77	94	m_len += len; //Useful so that we can parse string when last byte is written if not chunked
andrewbonney	0:18dd877d2c77	95	m_buf.reserve( m_len );
andrewbonney	0:18dd877d2c77	96	}
andrewbonney	0:18dd877d2c77	97
andrewbonney	0:18dd877d2c77	98	void HTTPMap::generateString()
andrewbonney	0:18dd877d2c77	99	{
andrewbonney	0:18dd877d2c77	100	Dictionary::iterator it;
andrewbonney	0:18dd877d2c77	101	bool first = true;
andrewbonney	0:18dd877d2c77	102	while( !Dictionary::empty() )
andrewbonney	0:18dd877d2c77	103	{
andrewbonney	0:18dd877d2c77	104	if(!first)
andrewbonney	0:18dd877d2c77	105	{
andrewbonney	0:18dd877d2c77	106	m_buf.append( m_pairSep );
andrewbonney	0:18dd877d2c77	107	}
andrewbonney	0:18dd877d2c77	108	else
andrewbonney	0:18dd877d2c77	109	{
andrewbonney	0:18dd877d2c77	110	first = false;
andrewbonney	0:18dd877d2c77	111	}
andrewbonney	0:18dd877d2c77	112	it = Dictionary::begin();
andrewbonney	0:18dd877d2c77	113	m_buf.append( Url::encode( (*it).first ) );
andrewbonney	0:18dd877d2c77	114	m_buf.append( m_keyValueSep );
andrewbonney	0:18dd877d2c77	115	m_buf.append( Url::encode( (*it).second ) );
andrewbonney	0:18dd877d2c77	116	Dictionary::erase(it); //Free memory as we process data
andrewbonney	0:18dd877d2c77	117	}
andrewbonney	0:18dd877d2c77	118	m_len = m_buf.length();
andrewbonney	0:18dd877d2c77	119	DBG("\r\nData [len %d]:\r\n%s\r\n", m_len, m_buf.c_str());
andrewbonney	0:18dd877d2c77	120	}
andrewbonney	0:18dd877d2c77	121
andrewbonney	0:18dd877d2c77	122	void HTTPMap::parseString()
andrewbonney	0:18dd877d2c77	123	{
andrewbonney	0:18dd877d2c77	124	string key;
andrewbonney	0:18dd877d2c77	125	string value;
andrewbonney	0:18dd877d2c77	126
andrewbonney	0:18dd877d2c77	127	int pos = 0;
andrewbonney	0:18dd877d2c77	128
andrewbonney	0:18dd877d2c77	129	int key_pos;
andrewbonney	0:18dd877d2c77	130	int key_len;
andrewbonney	0:18dd877d2c77	131
andrewbonney	0:18dd877d2c77	132	int value_pos;
andrewbonney	0:18dd877d2c77	133	int value_len;
andrewbonney	0:18dd877d2c77	134
andrewbonney	0:18dd877d2c77	135	bool eof = false;
andrewbonney	0:18dd877d2c77	136	while(!eof)
andrewbonney	0:18dd877d2c77	137	{
andrewbonney	0:18dd877d2c77	138	key_pos = pos;
andrewbonney	0:18dd877d2c77	139	value_pos = m_buf.find(m_keyValueSep, pos);
andrewbonney	0:18dd877d2c77	140	if(value_pos < 0)
andrewbonney	0:18dd877d2c77	141	{
andrewbonney	0:18dd877d2c77	142	//Parse error, break
andrewbonney	0:18dd877d2c77	143	break;
andrewbonney	0:18dd877d2c77	144	}
andrewbonney	0:18dd877d2c77	145
andrewbonney	0:18dd877d2c77	146	key_len = value_pos - key_pos;
andrewbonney	0:18dd877d2c77	147
andrewbonney	0:18dd877d2c77	148	value_pos+= m_keyValueSep.length();
andrewbonney	0:18dd877d2c77	149
andrewbonney	0:18dd877d2c77	150	pos = m_buf.find( m_pairSep, value_pos );
andrewbonney	0:18dd877d2c77	151	if(pos < 0) //Not found
andrewbonney	0:18dd877d2c77	152	{
andrewbonney	0:18dd877d2c77	153	pos = m_buf.length();
andrewbonney	0:18dd877d2c77	154	eof = true;
andrewbonney	0:18dd877d2c77	155	}
andrewbonney	0:18dd877d2c77	156
andrewbonney	0:18dd877d2c77	157	value_len = pos - value_pos;
andrewbonney	0:18dd877d2c77	158
andrewbonney	0:18dd877d2c77	159	pos += m_pairSep.length();
andrewbonney	0:18dd877d2c77	160
andrewbonney	0:18dd877d2c77	161	//Append elenent
andrewbonney	0:18dd877d2c77	162	Dictionary::operator[]( Url::decode( m_buf.substr(key_pos, key_len) ) ) = Url::decode( m_buf.substr(value_pos, value_len) );
andrewbonney	0:18dd877d2c77	163	}
andrewbonney	0:18dd877d2c77	164
andrewbonney	0:18dd877d2c77	165	m_buf.clear(); //Free data
andrewbonney	0:18dd877d2c77	166
andrewbonney	0:18dd877d2c77	167	}

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Type:	Library
Created:	26 May 2011
Imports:	33
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

services/http/client/data/HTTPMap.cpp@0:18dd877d2c77, 2011-05-26 (annotated)

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