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First step: AutoIP compiled in and working

services/http/server/HTTPRequestDispatcher.cpp@0:55a05330f8cc, 2010-06-18 (annotated)

Committer:: darran
Date:: Fri Jun 18 09:11:35 2010 +0000
Revision:: 0:55a05330f8cc
Child:: 1:4218cacaf696

Who changed what in which revision?

User	Revision	Line number	New contents of line
darran	0:55a05330f8cc	1
darran	0:55a05330f8cc	2	/*
darran	0:55a05330f8cc	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
darran	0:55a05330f8cc	4
darran	0:55a05330f8cc	5	Permission is hereby granted, free of charge, to any person obtaining a copy
darran	0:55a05330f8cc	6	of this software and associated documentation files (the "Software"), to deal
darran	0:55a05330f8cc	7	in the Software without restriction, including without limitation the rights
darran	0:55a05330f8cc	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
darran	0:55a05330f8cc	9	copies of the Software, and to permit persons to whom the Software is
darran	0:55a05330f8cc	10	furnished to do so, subject to the following conditions:
darran	0:55a05330f8cc	11
darran	0:55a05330f8cc	12	The above copyright notice and this permission notice shall be included in
darran	0:55a05330f8cc	13	all copies or substantial portions of the Software.
darran	0:55a05330f8cc	14
darran	0:55a05330f8cc	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
darran	0:55a05330f8cc	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
darran	0:55a05330f8cc	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
darran	0:55a05330f8cc	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
darran	0:55a05330f8cc	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
darran	0:55a05330f8cc	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
darran	0:55a05330f8cc	21	THE SOFTWARE.
darran	0:55a05330f8cc	22	*/
darran	0:55a05330f8cc	23
darran	0:55a05330f8cc	24	#include "HTTPRequestDispatcher.h"
darran	0:55a05330f8cc	25	#include "HTTPRequestHandler.h"
darran	0:55a05330f8cc	26	#include <string.h>
darran	0:55a05330f8cc	27
darran	0:55a05330f8cc	28	//#define __DEBUG
darran	0:55a05330f8cc	29	#include "dbg/dbg.h"
darran	0:55a05330f8cc	30
darran	0:55a05330f8cc	31	HTTPRequestDispatcher::HTTPRequestDispatcher(HTTPServer* pSvr, TCPSocket* pTCPSocket) : NetService(), m_pSvr(pSvr), m_pTCPSocket(pTCPSocket), m_watchdog(), m_closed(false)
darran	0:55a05330f8cc	32	{
darran	0:55a05330f8cc	33	m_pTCPSocket->setOnEvent(this, &HTTPRequestDispatcher::onTCPSocketEvent);
darran	0:55a05330f8cc	34	m_watchdog.attach_us<HTTPRequestDispatcher>(this, &HTTPRequestDispatcher::onTimeout, HTTP_REQUEST_TIMEOUT * 1000);
darran	0:55a05330f8cc	35	}
darran	0:55a05330f8cc	36
darran	0:55a05330f8cc	37	HTTPRequestDispatcher::~HTTPRequestDispatcher()
darran	0:55a05330f8cc	38	{
darran	0:55a05330f8cc	39	close();
darran	0:55a05330f8cc	40	}
darran	0:55a05330f8cc	41
darran	0:55a05330f8cc	42	void HTTPRequestDispatcher::dispatchRequest()
darran	0:55a05330f8cc	43	{
darran	0:55a05330f8cc	44	string rootPath;
darran	0:55a05330f8cc	45	string subPath;
darran	0:55a05330f8cc	46	string meth;
darran	0:55a05330f8cc	47	HTTP_METH methCode;
darran	0:55a05330f8cc	48
darran	0:55a05330f8cc	49	DBG("\r\nDispatching req\r\n");
darran	0:55a05330f8cc	50
darran	0:55a05330f8cc	51	if( !getRequest(&rootPath, &subPath, &meth ) )
darran	0:55a05330f8cc	52	{
darran	0:55a05330f8cc	53	close();
darran	0:55a05330f8cc	54	return; //Invalid request
darran	0:55a05330f8cc	55	}
darran	0:55a05330f8cc	56
darran	0:55a05330f8cc	57	if( !meth.compare("GET") )
darran	0:55a05330f8cc	58	{
darran	0:55a05330f8cc	59	methCode = HTTP_GET;
darran	0:55a05330f8cc	60	}
darran	0:55a05330f8cc	61	else if( !meth.compare("POST") )
darran	0:55a05330f8cc	62	{
darran	0:55a05330f8cc	63	methCode = HTTP_POST;
darran	0:55a05330f8cc	64	}
darran	0:55a05330f8cc	65	else if( !meth.compare("HEAD") )
darran	0:55a05330f8cc	66	{
darran	0:55a05330f8cc	67	methCode = HTTP_HEAD;
darran	0:55a05330f8cc	68	}
darran	0:55a05330f8cc	69	else
darran	0:55a05330f8cc	70	{
darran	0:55a05330f8cc	71	close(); //Parse error
darran	0:55a05330f8cc	72	return;
darran	0:55a05330f8cc	73	}
darran	0:55a05330f8cc	74
darran	0:55a05330f8cc	75	DBG("\r\nLooking for a handler\r\n");
darran	0:55a05330f8cc	76
darran	0:55a05330f8cc	77	map< string, HTTPRequestHandler()(const char, const char, TCPSocket*) >::iterator it;
darran	0:55a05330f8cc	78	it = m_pSvr->m_lpHandlers.find(rootPath); //We are friends so we can do that
darran	0:55a05330f8cc	79	if(it == m_pSvr->m_lpHandlers.end())
darran	0:55a05330f8cc	80	{
darran	0:55a05330f8cc	81	it = m_pSvr->m_lpHandlers.find(""); //Use default handler if it exists
darran	0:55a05330f8cc	82	}
darran	0:55a05330f8cc	83	if(it == m_pSvr->m_lpHandlers.end())
darran	0:55a05330f8cc	84	{
darran	0:55a05330f8cc	85	close(); //No handler found
darran	0:55a05330f8cc	86	return;
darran	0:55a05330f8cc	87	}
darran	0:55a05330f8cc	88
darran	0:55a05330f8cc	89	DBG("\r\nHandler found.\r\n");
darran	0:55a05330f8cc	90
darran	0:55a05330f8cc	91	HTTPRequestHandler* pHdlr = (*it).second(rootPath.c_str(), subPath.c_str(), m_pTCPSocket);
darran	0:55a05330f8cc	92	m_pTCPSocket = NULL; //We don't own it anymore
darran	0:55a05330f8cc	93
darran	0:55a05330f8cc	94	switch(methCode)
darran	0:55a05330f8cc	95	{
darran	0:55a05330f8cc	96	case HTTP_GET:
darran	0:55a05330f8cc	97	pHdlr->doGet();
darran	0:55a05330f8cc	98	break;
darran	0:55a05330f8cc	99	case HTTP_POST:
darran	0:55a05330f8cc	100	pHdlr->doPost();
darran	0:55a05330f8cc	101	break;
darran	0:55a05330f8cc	102	case HTTP_HEAD:
darran	0:55a05330f8cc	103	pHdlr->doHead();
darran	0:55a05330f8cc	104	break;
darran	0:55a05330f8cc	105	}
darran	0:55a05330f8cc	106
darran	0:55a05330f8cc	107	DBG("\r\nReq handled (or being handled)\r\n");
darran	0:55a05330f8cc	108	close();
darran	0:55a05330f8cc	109	}
darran	0:55a05330f8cc	110
darran	0:55a05330f8cc	111	void HTTPRequestDispatcher::close() //Close socket and destroy data
darran	0:55a05330f8cc	112	{
darran	0:55a05330f8cc	113	if(m_closed)
darran	0:55a05330f8cc	114	return;
darran	0:55a05330f8cc	115	m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
darran	0:55a05330f8cc	116	m_watchdog.detach();
darran	0:55a05330f8cc	117	if(m_pTCPSocket) //m_pTCPSocket Should only be destroyed if ownership not passed to an handler
darran	0:55a05330f8cc	118	{
darran	0:55a05330f8cc	119	m_pTCPSocket->resetOnEvent();
darran	0:55a05330f8cc	120	m_pTCPSocket->close();
darran	0:55a05330f8cc	121	delete m_pTCPSocket; //This fn might have been called by this socket (through an event), so DO NOT DESTROY IT HERE
darran	0:55a05330f8cc	122	}
darran	0:55a05330f8cc	123	NetService::close();
darran	0:55a05330f8cc	124	}
darran	0:55a05330f8cc	125
darran	0:55a05330f8cc	126
darran	0:55a05330f8cc	127	void HTTPRequestDispatcher::onTimeout() //Connection has timed out
darran	0:55a05330f8cc	128	{
darran	0:55a05330f8cc	129	close();
darran	0:55a05330f8cc	130	}
darran	0:55a05330f8cc	131
darran	0:55a05330f8cc	132	bool HTTPRequestDispatcher::getRequest(string* rootPath, string* subPath, string* meth)
darran	0:55a05330f8cc	133	{
darran	0:55a05330f8cc	134	char req[128];
darran	0:55a05330f8cc	135	char c_path[128];
darran	0:55a05330f8cc	136	char c_meth[128];
darran	0:55a05330f8cc	137	const int maxLen = 128;
darran	0:55a05330f8cc	138	char* p = req;
darran	0:55a05330f8cc	139	//Read Line
darran	0:55a05330f8cc	140	int ret;
darran	0:55a05330f8cc	141	int len = 0;
darran	0:55a05330f8cc	142	for(int i = 0; i < maxLen - 1; i++)
darran	0:55a05330f8cc	143	{
darran	0:55a05330f8cc	144	ret = m_pTCPSocket->recv(p, 1);
darran	0:55a05330f8cc	145	if(!ret)
darran	0:55a05330f8cc	146	{
darran	0:55a05330f8cc	147	break;
darran	0:55a05330f8cc	148	}
darran	0:55a05330f8cc	149	if( (len > 1) && (p-1)=='\r' && p=='\n' )
darran	0:55a05330f8cc	150	{
darran	0:55a05330f8cc	151	p--;
darran	0:55a05330f8cc	152	len-=2;
darran	0:55a05330f8cc	153	break;
darran	0:55a05330f8cc	154	}
darran	0:55a05330f8cc	155	else if( *p=='\n' )
darran	0:55a05330f8cc	156	{
darran	0:55a05330f8cc	157	len--;
darran	0:55a05330f8cc	158	break;
darran	0:55a05330f8cc	159	}
darran	0:55a05330f8cc	160	p++;
darran	0:55a05330f8cc	161	len++;
darran	0:55a05330f8cc	162	}
darran	0:55a05330f8cc	163	*p = 0;
darran	0:55a05330f8cc	164
darran	0:55a05330f8cc	165	DBG("\r\nParsing request : %s\r\n", req);
darran	0:55a05330f8cc	166
darran	0:55a05330f8cc	167	ret = sscanf(req, "%s %s HTTP/%d.%d", c_meth, c_path);
darran	0:55a05330f8cc	168	if(ret !=2)
darran	0:55a05330f8cc	169	return false;
darran	0:55a05330f8cc	170
darran	0:55a05330f8cc	171	*meth = string(c_meth);
darran	0:55a05330f8cc	172	*subPath = string(c_path);
darran	0:55a05330f8cc	173
darran	0:55a05330f8cc	174	c_path[0]= '/';
darran	0:55a05330f8cc	175	if(!strchr(c_path+1, '/'))
darran	0:55a05330f8cc	176	{
darran	0:55a05330f8cc	177	//Not found, so this is the root path
darran	0:55a05330f8cc	178	c_path[1]=0;
darran	0:55a05330f8cc	179	*rootPath = string(c_path);
darran	0:55a05330f8cc	180	}
darran	0:55a05330f8cc	181	else
darran	0:55a05330f8cc	182	{
darran	0:55a05330f8cc	183	ret = sscanf(req, "%s /%[^/ ]/%s HTTP/%d.%d", c_path+1);
darran	0:55a05330f8cc	184	if(ret !=1)
darran	0:55a05330f8cc	185	{
darran	0:55a05330f8cc	186	//This is the root path
darran	0:55a05330f8cc	187	DBG("Default path\n");
darran	0:55a05330f8cc	188	}
darran	0:55a05330f8cc	189	*rootPath = string(c_path);
darran	0:55a05330f8cc	190	subPath->erase(0,rootPath->length());
darran	0:55a05330f8cc	191	}
darran	0:55a05330f8cc	192
darran	0:55a05330f8cc	193
darran	0:55a05330f8cc	194	DBG("\r\nParse OK :\r\nRoot Path: %s\r\nSub Path: %s\r\nMethod: %s\r\n", rootPath->c_str(), subPath->c_str(), meth->c_str());
darran	0:55a05330f8cc	195
darran	0:55a05330f8cc	196	return true;
darran	0:55a05330f8cc	197
darran	0:55a05330f8cc	198	}
darran	0:55a05330f8cc	199
darran	0:55a05330f8cc	200
darran	0:55a05330f8cc	201	void HTTPRequestDispatcher::onTCPSocketEvent(TCPSocketEvent e)
darran	0:55a05330f8cc	202	{
darran	0:55a05330f8cc	203
darran	0:55a05330f8cc	204	DBG("\r\nEvent %d\r\n", e);
darran	0:55a05330f8cc	205
darran	0:55a05330f8cc	206	if(m_closed)
darran	0:55a05330f8cc	207	{
darran	0:55a05330f8cc	208	DBG("\r\nWARN: Discarded\r\n");
darran	0:55a05330f8cc	209	return;
darran	0:55a05330f8cc	210	}
darran	0:55a05330f8cc	211
darran	0:55a05330f8cc	212	switch(e)
darran	0:55a05330f8cc	213	{
darran	0:55a05330f8cc	214	case TCPSOCKET_READABLE:
darran	0:55a05330f8cc	215	m_watchdog.detach();
darran	0:55a05330f8cc	216	m_pTCPSocket->resetOnEvent();
darran	0:55a05330f8cc	217	//Req arrived, dispatch :
darran	0:55a05330f8cc	218	dispatchRequest();
darran	0:55a05330f8cc	219	break;
darran	0:55a05330f8cc	220	case TCPSOCKET_CONTIMEOUT:
darran	0:55a05330f8cc	221	case TCPSOCKET_CONRST:
darran	0:55a05330f8cc	222	case TCPSOCKET_CONABRT:
darran	0:55a05330f8cc	223	case TCPSOCKET_ERROR:
darran	0:55a05330f8cc	224	case TCPSOCKET_DISCONNECTED:
darran	0:55a05330f8cc	225	close();
darran	0:55a05330f8cc	226	break;
darran	0:55a05330f8cc	227	}
darran	0:55a05330f8cc	228
darran	0:55a05330f8cc	229	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	18 Jun 2010
Imports:	7
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	1
Followers:	1

services/http/server/HTTPRequestDispatcher.cpp@0:55a05330f8cc, 2010-06-18 (annotated)

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