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Dirk-Willem van Gulik (NXP/mbed) / Mbed 2 deprecated Bonjour

services/http/server/HTTPRequestDispatcher.cpp@5:8e53abda9900, 2010-08-14 (annotated)

Committer:: dirkx
Date:: Sat Aug 14 15:54:31 2010 +0000
Revision:: 5:8e53abda9900
Parent:: 0:355018f44c9f

Who changed what in which revision?

User	Revision	Line number	New contents of line
dirkx	0:355018f44c9f	1
dirkx	0:355018f44c9f	2	/*
dirkx	0:355018f44c9f	3	Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
dirkx	0:355018f44c9f	4
dirkx	0:355018f44c9f	5	Permission is hereby granted, free of charge, to any person obtaining a copy
dirkx	0:355018f44c9f	6	of this software and associated documentation files (the "Software"), to deal
dirkx	0:355018f44c9f	7	in the Software without restriction, including without limitation the rights
dirkx	0:355018f44c9f	8	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
dirkx	0:355018f44c9f	9	copies of the Software, and to permit persons to whom the Software is
dirkx	0:355018f44c9f	10	furnished to do so, subject to the following conditions:
dirkx	0:355018f44c9f	11
dirkx	0:355018f44c9f	12	The above copyright notice and this permission notice shall be included in
dirkx	0:355018f44c9f	13	all copies or substantial portions of the Software.
dirkx	0:355018f44c9f	14
dirkx	0:355018f44c9f	15	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
dirkx	0:355018f44c9f	16	IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
dirkx	0:355018f44c9f	17	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
dirkx	0:355018f44c9f	18	AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
dirkx	0:355018f44c9f	19	LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
dirkx	0:355018f44c9f	20	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
dirkx	0:355018f44c9f	21	THE SOFTWARE.
dirkx	0:355018f44c9f	22	*/
dirkx	0:355018f44c9f	23
dirkx	0:355018f44c9f	24	#include "HTTPRequestDispatcher.h"
dirkx	0:355018f44c9f	25	#include "HTTPRequestHandler.h"
dirkx	0:355018f44c9f	26	#include <string.h>
dirkx	0:355018f44c9f	27
dirkx	0:355018f44c9f	28	//#define __DEBUG
dirkx	0:355018f44c9f	29	#include "dbg/dbg.h"
dirkx	0:355018f44c9f	30
dirkx	0:355018f44c9f	31	HTTPRequestDispatcher::HTTPRequestDispatcher(HTTPServer* pSvr, TCPSocket* pTCPSocket) : NetService(), m_pSvr(pSvr), m_pTCPSocket(pTCPSocket), m_watchdog(), m_closed(false)
dirkx	0:355018f44c9f	32	{
dirkx	0:355018f44c9f	33	m_pTCPSocket->setOnEvent(this, &HTTPRequestDispatcher::onTCPSocketEvent);
dirkx	0:355018f44c9f	34	m_watchdog.attach_us<HTTPRequestDispatcher>(this, &HTTPRequestDispatcher::onTimeout, HTTP_REQUEST_TIMEOUT * 1000);
dirkx	0:355018f44c9f	35	}
dirkx	0:355018f44c9f	36
dirkx	0:355018f44c9f	37	HTTPRequestDispatcher::~HTTPRequestDispatcher()
dirkx	0:355018f44c9f	38	{
dirkx	0:355018f44c9f	39	close();
dirkx	0:355018f44c9f	40	}
dirkx	0:355018f44c9f	41
dirkx	0:355018f44c9f	42	void HTTPRequestDispatcher::dispatchRequest()
dirkx	0:355018f44c9f	43	{
dirkx	0:355018f44c9f	44	string path;
dirkx	0:355018f44c9f	45	string meth;
dirkx	0:355018f44c9f	46	HTTP_METH methCode;
dirkx	0:355018f44c9f	47
dirkx	0:355018f44c9f	48	DBG("Dispatching req\r\n");
dirkx	0:355018f44c9f	49
dirkx	0:355018f44c9f	50	if( !getRequest(&path, &meth ) )
dirkx	0:355018f44c9f	51	{
dirkx	0:355018f44c9f	52	close();
dirkx	0:355018f44c9f	53	return; //Invalid request
dirkx	0:355018f44c9f	54	}
dirkx	0:355018f44c9f	55
dirkx	0:355018f44c9f	56	if( !meth.compare("GET") )
dirkx	0:355018f44c9f	57	{
dirkx	0:355018f44c9f	58	methCode = HTTP_GET;
dirkx	0:355018f44c9f	59	}
dirkx	0:355018f44c9f	60	else if( !meth.compare("POST") )
dirkx	0:355018f44c9f	61	{
dirkx	0:355018f44c9f	62	methCode = HTTP_POST;
dirkx	0:355018f44c9f	63	}
dirkx	0:355018f44c9f	64	else if( !meth.compare("HEAD") )
dirkx	0:355018f44c9f	65	{
dirkx	0:355018f44c9f	66	methCode = HTTP_HEAD;
dirkx	0:355018f44c9f	67	}
dirkx	0:355018f44c9f	68	else
dirkx	0:355018f44c9f	69	{
dirkx	0:355018f44c9f	70	close(); //Parse error
dirkx	0:355018f44c9f	71	return;
dirkx	0:355018f44c9f	72	}
dirkx	0:355018f44c9f	73
dirkx	0:355018f44c9f	74	DBG("Looking for a handler\r\n");
dirkx	0:355018f44c9f	75
dirkx	0:355018f44c9f	76	map< string, HTTPRequestHandler()(const char, const char, TCPSocket*) >::iterator it;
dirkx	0:355018f44c9f	77	// it = m_pSvr->m_lpHandlers.find(rootPath); //We are friends so we can do that
dirkx	0:355018f44c9f	78	// NEW CODE START:
dirkx	0:355018f44c9f	79	int root_len = 0;
dirkx	0:355018f44c9f	80	for (it = m_pSvr->m_lpHandlers.begin(); it != m_pSvr->m_lpHandlers.end(); it++)
dirkx	0:355018f44c9f	81	{
dirkx	0:355018f44c9f	82	DBG("Checking %s...\n", (*it).first.c_str());
dirkx	0:355018f44c9f	83	root_len = (*it).first.length();
dirkx	0:355018f44c9f	84	if ( root_len &&
dirkx	0:355018f44c9f	85	!path.compare( 0, root_len, (*it).first ) &&
dirkx	0:355018f44c9f	86	(path[root_len] == '/' \|\| path[root_len] == '\0'))
dirkx	0:355018f44c9f	87	{
dirkx	0:355018f44c9f	88	DBG("Found (%s)\n", (*it).first.c_str());
dirkx	0:355018f44c9f	89	// Found!
dirkx	0:355018f44c9f	90	break; // for
dirkx	0:355018f44c9f	91	}
dirkx	0:355018f44c9f	92	}
dirkx	0:355018f44c9f	93	// NEW CODE END
dirkx	0:355018f44c9f	94	if((it == m_pSvr->m_lpHandlers.end()) && !(m_pSvr->m_lpHandlers.empty()))
dirkx	0:355018f44c9f	95	{
dirkx	0:355018f44c9f	96	DBG("Using default handler\n");
dirkx	0:355018f44c9f	97	it = m_pSvr->m_lpHandlers.end();
dirkx	0:355018f44c9f	98	it--; //Get the last element
dirkx	0:355018f44c9f	99	if( ! (((it).first.length() == 0) \|\| !(it).first.compare("/")) ) //This is not the default handler
dirkx	0:355018f44c9f	100	it = m_pSvr->m_lpHandlers.end();
dirkx	0:355018f44c9f	101	root_len = 0;
dirkx	0:355018f44c9f	102	}
dirkx	0:355018f44c9f	103	if(it == m_pSvr->m_lpHandlers.end())
dirkx	0:355018f44c9f	104	{
dirkx	0:355018f44c9f	105	DBG("No handler found\n");
dirkx	0:355018f44c9f	106	close(); //No handler found
dirkx	0:355018f44c9f	107	return;
dirkx	0:355018f44c9f	108	}
dirkx	0:355018f44c9f	109
dirkx	0:355018f44c9f	110	DBG("Handler found.\r\n");
dirkx	0:355018f44c9f	111
dirkx	0:355018f44c9f	112	//HTTPRequestHandler* pHdlr = (*it).second(rootPath.c_str(), subPath.c_str(), m_pTCPSocket);
dirkx	0:355018f44c9f	113	//NEW CODE 1 LINE:
dirkx	0:355018f44c9f	114	HTTPRequestHandler* pHdlr = (it).second((it).first.c_str(), path.c_str() + root_len, m_pTCPSocket);
dirkx	0:355018f44c9f	115	m_pTCPSocket = NULL; //We don't own it anymore
dirkx	0:355018f44c9f	116
dirkx	0:355018f44c9f	117	switch(methCode)
dirkx	0:355018f44c9f	118	{
dirkx	0:355018f44c9f	119	case HTTP_GET:
dirkx	0:355018f44c9f	120	pHdlr->doGet();
dirkx	0:355018f44c9f	121	break;
dirkx	0:355018f44c9f	122	case HTTP_POST:
dirkx	0:355018f44c9f	123	pHdlr->doPost();
dirkx	0:355018f44c9f	124	break;
dirkx	0:355018f44c9f	125	case HTTP_HEAD:
dirkx	0:355018f44c9f	126	pHdlr->doHead();
dirkx	0:355018f44c9f	127	break;
dirkx	0:355018f44c9f	128	}
dirkx	0:355018f44c9f	129
dirkx	0:355018f44c9f	130	DBG("Req handled (or being handled)\r\n");
dirkx	0:355018f44c9f	131	close();
dirkx	0:355018f44c9f	132	}
dirkx	0:355018f44c9f	133
dirkx	0:355018f44c9f	134	void HTTPRequestDispatcher::close() //Close socket and destroy data
dirkx	0:355018f44c9f	135	{
dirkx	0:355018f44c9f	136	if(m_closed)
dirkx	0:355018f44c9f	137	return;
dirkx	0:355018f44c9f	138	m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
dirkx	0:355018f44c9f	139	m_watchdog.detach();
dirkx	0:355018f44c9f	140	if(m_pTCPSocket) //m_pTCPSocket Should only be destroyed if ownership not passed to an handler
dirkx	0:355018f44c9f	141	{
dirkx	0:355018f44c9f	142	m_pTCPSocket->resetOnEvent();
dirkx	0:355018f44c9f	143	m_pTCPSocket->close();
dirkx	0:355018f44c9f	144	delete m_pTCPSocket; //This fn might have been called by this socket (through an event), so DO NOT DESTROY IT HERE
dirkx	0:355018f44c9f	145	}
dirkx	0:355018f44c9f	146	NetService::close();
dirkx	0:355018f44c9f	147	}
dirkx	0:355018f44c9f	148
dirkx	0:355018f44c9f	149
dirkx	0:355018f44c9f	150	void HTTPRequestDispatcher::onTimeout() //Connection has timed out
dirkx	0:355018f44c9f	151	{
dirkx	0:355018f44c9f	152	close();
dirkx	0:355018f44c9f	153	}
dirkx	0:355018f44c9f	154
dirkx	0:355018f44c9f	155	bool HTTPRequestDispatcher::getRequest(string* path, string* meth)
dirkx	0:355018f44c9f	156	{
dirkx	0:355018f44c9f	157	char req[128];
dirkx	0:355018f44c9f	158	char c_path[128];
dirkx	0:355018f44c9f	159	char c_meth[128];
dirkx	0:355018f44c9f	160	const int maxLen = 128;
dirkx	0:355018f44c9f	161	char* p = req;
dirkx	0:355018f44c9f	162	//Read Line
dirkx	0:355018f44c9f	163	int ret;
dirkx	0:355018f44c9f	164	int len = 0;
dirkx	0:355018f44c9f	165	for(int i = 0; i < maxLen - 1; i++)
dirkx	0:355018f44c9f	166	{
dirkx	0:355018f44c9f	167	ret = m_pTCPSocket->recv(p, 1);
dirkx	0:355018f44c9f	168	if(!ret)
dirkx	0:355018f44c9f	169	{
dirkx	0:355018f44c9f	170	break;
dirkx	0:355018f44c9f	171	}
dirkx	0:355018f44c9f	172	if( (len > 1) && (p-1)=='\r' && p=='\n' )
dirkx	0:355018f44c9f	173	{
dirkx	0:355018f44c9f	174	p--;
dirkx	0:355018f44c9f	175	len-=2;
dirkx	0:355018f44c9f	176	break;
dirkx	0:355018f44c9f	177	}
dirkx	0:355018f44c9f	178	else if( *p=='\n' )
dirkx	0:355018f44c9f	179	{
dirkx	0:355018f44c9f	180	len--;
dirkx	0:355018f44c9f	181	break;
dirkx	0:355018f44c9f	182	}
dirkx	0:355018f44c9f	183	p++;
dirkx	0:355018f44c9f	184	len++;
dirkx	0:355018f44c9f	185	}
dirkx	0:355018f44c9f	186	*p = 0;
dirkx	0:355018f44c9f	187
dirkx	0:355018f44c9f	188	DBG("Parsing request : %s\r\n", req);
dirkx	0:355018f44c9f	189
dirkx	0:355018f44c9f	190	ret = sscanf(req, "%s %s HTTP/%d.%d", c_meth, c_path);
dirkx	0:355018f44c9f	191	if(ret !=2)
dirkx	0:355018f44c9f	192	return false;
dirkx	0:355018f44c9f	193
dirkx	0:355018f44c9f	194	*meth = string(c_meth);
dirkx	0:355018f44c9f	195	// NEW CODE (old code removed):
dirkx	0:355018f44c9f	196	*path = string(c_path);
dirkx	0:355018f44c9f	197	return true;
dirkx	0:355018f44c9f	198	}
dirkx	0:355018f44c9f	199
dirkx	0:355018f44c9f	200
dirkx	0:355018f44c9f	201
dirkx	0:355018f44c9f	202	void HTTPRequestDispatcher::onTCPSocketEvent(TCPSocketEvent e)
dirkx	0:355018f44c9f	203	{
dirkx	0:355018f44c9f	204
dirkx	0:355018f44c9f	205	DBG("\r\nEvent %d\r\n", e);
dirkx	0:355018f44c9f	206
dirkx	0:355018f44c9f	207	if(m_closed)
dirkx	0:355018f44c9f	208	{
dirkx	0:355018f44c9f	209	DBG("\r\nWARN: Discarded\r\n");
dirkx	0:355018f44c9f	210	return;
dirkx	0:355018f44c9f	211	}
dirkx	0:355018f44c9f	212
dirkx	0:355018f44c9f	213	switch(e)
dirkx	0:355018f44c9f	214	{
dirkx	0:355018f44c9f	215	case TCPSOCKET_READABLE:
dirkx	0:355018f44c9f	216	m_watchdog.detach();
dirkx	0:355018f44c9f	217	m_pTCPSocket->resetOnEvent();
dirkx	0:355018f44c9f	218	//Req arrived, dispatch :
dirkx	0:355018f44c9f	219	dispatchRequest();
dirkx	0:355018f44c9f	220	break;
dirkx	0:355018f44c9f	221	case TCPSOCKET_CONTIMEOUT:
dirkx	0:355018f44c9f	222	case TCPSOCKET_CONRST:
dirkx	0:355018f44c9f	223	case TCPSOCKET_CONABRT:
dirkx	0:355018f44c9f	224	case TCPSOCKET_ERROR:
dirkx	0:355018f44c9f	225	case TCPSOCKET_DISCONNECTED:
dirkx	0:355018f44c9f	226	close();
dirkx	0:355018f44c9f	227	break;
dirkx	0:355018f44c9f	228	}
dirkx	0:355018f44c9f	229
dirkx	0:355018f44c9f	230	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	21 Jul 2010
Imports:	99
Forks:	0
Commits:	6
Dependents:	0
Dependencies:	1
Followers:	8

services/http/server/HTTPRequestDispatcher.cpp@5:8e53abda9900, 2010-08-14 (annotated)

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