Nino Der Kinderen / Mbed 2 deprecated InetTest

Embedded C project:18/12/2014

Dependencies:   DS1307 TextLCD mbed

NetServices/services/http/server/HTTPRequestDispatcher.cpp@0:8d87bc453349, 2014-12-18 (annotated)

Committer:
ninoderkinderen
Date:
Thu Dec 18 09:35:49 2014 +0000
Revision:
0:8d87bc453349
Programma embedded C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ninoderkinderen 0:8d87bc453349 1
ninoderkinderen 0:8d87bc453349 2 /*
ninoderkinderen 0:8d87bc453349 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
ninoderkinderen 0:8d87bc453349 4
ninoderkinderen 0:8d87bc453349 5 Permission is hereby granted, free of charge, to any person obtaining a copy
ninoderkinderen 0:8d87bc453349 6 of this software and associated documentation files (the "Software"), to deal
ninoderkinderen 0:8d87bc453349 7 in the Software without restriction, including without limitation the rights
ninoderkinderen 0:8d87bc453349 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
ninoderkinderen 0:8d87bc453349 9 copies of the Software, and to permit persons to whom the Software is
ninoderkinderen 0:8d87bc453349 10 furnished to do so, subject to the following conditions:
ninoderkinderen 0:8d87bc453349 11
ninoderkinderen 0:8d87bc453349 12 The above copyright notice and this permission notice shall be included in
ninoderkinderen 0:8d87bc453349 13 all copies or substantial portions of the Software.
ninoderkinderen 0:8d87bc453349 14
ninoderkinderen 0:8d87bc453349 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
ninoderkinderen 0:8d87bc453349 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
ninoderkinderen 0:8d87bc453349 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
ninoderkinderen 0:8d87bc453349 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
ninoderkinderen 0:8d87bc453349 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ninoderkinderen 0:8d87bc453349 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
ninoderkinderen 0:8d87bc453349 21 THE SOFTWARE.
ninoderkinderen 0:8d87bc453349 22 */
ninoderkinderen 0:8d87bc453349 23
ninoderkinderen 0:8d87bc453349 24 #include "core/netservice.h"
ninoderkinderen 0:8d87bc453349 25 #include "HTTPRequestDispatcher.h"
ninoderkinderen 0:8d87bc453349 26 #include "HTTPRequestHandler.h"
ninoderkinderen 0:8d87bc453349 27 #include <string.h>
ninoderkinderen 0:8d87bc453349 28
ninoderkinderen 0:8d87bc453349 29 //#define __DEBUG
ninoderkinderen 0:8d87bc453349 30 #include "dbg/dbg.h"
ninoderkinderen 0:8d87bc453349 31
ninoderkinderen 0:8d87bc453349 32 HTTPRequestDispatcher::HTTPRequestDispatcher(HTTPServer* pSvr, TCPSocket* pTCPSocket) : NetService(), m_pSvr(pSvr), m_pTCPSocket(pTCPSocket), m_watchdog(), m_closed(false)
ninoderkinderen 0:8d87bc453349 33 {
ninoderkinderen 0:8d87bc453349 34 m_pTCPSocket->setOnEvent(this, &HTTPRequestDispatcher::onTCPSocketEvent);
ninoderkinderen 0:8d87bc453349 35 m_watchdog.attach_us<HTTPRequestDispatcher>(this, &HTTPRequestDispatcher::onTimeout, HTTP_REQUEST_TIMEOUT * 1000);
ninoderkinderen 0:8d87bc453349 36 }
ninoderkinderen 0:8d87bc453349 37
ninoderkinderen 0:8d87bc453349 38 HTTPRequestDispatcher::~HTTPRequestDispatcher()
ninoderkinderen 0:8d87bc453349 39 {
ninoderkinderen 0:8d87bc453349 40 close();
ninoderkinderen 0:8d87bc453349 41 }
ninoderkinderen 0:8d87bc453349 42
ninoderkinderen 0:8d87bc453349 43 void HTTPRequestDispatcher::dispatchRequest()
ninoderkinderen 0:8d87bc453349 44 {
ninoderkinderen 0:8d87bc453349 45 string path;
ninoderkinderen 0:8d87bc453349 46 string meth;
ninoderkinderen 0:8d87bc453349 47 HTTP_METH methCode;
ninoderkinderen 0:8d87bc453349 48
ninoderkinderen 0:8d87bc453349 49 DBG("Dispatching req\r\n");
ninoderkinderen 0:8d87bc453349 50
ninoderkinderen 0:8d87bc453349 51 if( !getRequest(&path, &meth ) )
ninoderkinderen 0:8d87bc453349 52 {
ninoderkinderen 0:8d87bc453349 53 close();
ninoderkinderen 0:8d87bc453349 54 return; //Invalid request
ninoderkinderen 0:8d87bc453349 55 }
ninoderkinderen 0:8d87bc453349 56
ninoderkinderen 0:8d87bc453349 57 if( !meth.compare("GET") )
ninoderkinderen 0:8d87bc453349 58 {
ninoderkinderen 0:8d87bc453349 59 methCode = HTTP_GET;
ninoderkinderen 0:8d87bc453349 60 }
ninoderkinderen 0:8d87bc453349 61 else if( !meth.compare("POST") )
ninoderkinderen 0:8d87bc453349 62 {
ninoderkinderen 0:8d87bc453349 63 methCode = HTTP_POST;
ninoderkinderen 0:8d87bc453349 64 }
ninoderkinderen 0:8d87bc453349 65 else if( !meth.compare("HEAD") )
ninoderkinderen 0:8d87bc453349 66 {
ninoderkinderen 0:8d87bc453349 67 methCode = HTTP_HEAD;
ninoderkinderen 0:8d87bc453349 68 }
ninoderkinderen 0:8d87bc453349 69 else
ninoderkinderen 0:8d87bc453349 70 {
ninoderkinderen 0:8d87bc453349 71 close(); //Parse error
ninoderkinderen 0:8d87bc453349 72 return;
ninoderkinderen 0:8d87bc453349 73 }
ninoderkinderen 0:8d87bc453349 74
ninoderkinderen 0:8d87bc453349 75 DBG("Looking for a handler\r\n");
ninoderkinderen 0:8d87bc453349 76
ninoderkinderen 0:8d87bc453349 77 map< string, HTTPRequestHandler*(*)(const char*, const char*, TCPSocket*) >::iterator it;
ninoderkinderen 0:8d87bc453349 78 // it = m_pSvr->m_lpHandlers.find(rootPath); //We are friends so we can do that
ninoderkinderen 0:8d87bc453349 79 // NEW CODE START:
ninoderkinderen 0:8d87bc453349 80 int root_len = 0;
ninoderkinderen 0:8d87bc453349 81 for (it = m_pSvr->m_lpHandlers.begin(); it != m_pSvr->m_lpHandlers.end(); it++)
ninoderkinderen 0:8d87bc453349 82 {
ninoderkinderen 0:8d87bc453349 83 DBG("Checking %s...\n", (*it).first.c_str());
ninoderkinderen 0:8d87bc453349 84 root_len = (*it).first.length();
ninoderkinderen 0:8d87bc453349 85 if ( root_len &&
ninoderkinderen 0:8d87bc453349 86 !path.compare( 0, root_len, (*it).first ) &&
ninoderkinderen 0:8d87bc453349 87 (path[root_len] == '/' || path[root_len] == '\0'))
ninoderkinderen 0:8d87bc453349 88 {
ninoderkinderen 0:8d87bc453349 89 DBG("Found (%s)\n", (*it).first.c_str());
ninoderkinderen 0:8d87bc453349 90 // Found!
ninoderkinderen 0:8d87bc453349 91 break; // for
ninoderkinderen 0:8d87bc453349 92 }
ninoderkinderen 0:8d87bc453349 93 }
ninoderkinderen 0:8d87bc453349 94 // NEW CODE END
ninoderkinderen 0:8d87bc453349 95 if((it == m_pSvr->m_lpHandlers.end()) && !(m_pSvr->m_lpHandlers.empty()))
ninoderkinderen 0:8d87bc453349 96 {
ninoderkinderen 0:8d87bc453349 97 DBG("Using default handler\n");
ninoderkinderen 0:8d87bc453349 98 it = m_pSvr->m_lpHandlers.end();
ninoderkinderen 0:8d87bc453349 99 it--; //Get the last element
ninoderkinderen 0:8d87bc453349 100 if( ! (((*it).first.length() == 0) || !(*it).first.compare("/")) ) //This is not the default handler
ninoderkinderen 0:8d87bc453349 101 it = m_pSvr->m_lpHandlers.end();
ninoderkinderen 0:8d87bc453349 102 root_len = 0;
ninoderkinderen 0:8d87bc453349 103 }
ninoderkinderen 0:8d87bc453349 104 if(it == m_pSvr->m_lpHandlers.end())
ninoderkinderen 0:8d87bc453349 105 {
ninoderkinderen 0:8d87bc453349 106 DBG("No handler found\n");
ninoderkinderen 0:8d87bc453349 107 close(); //No handler found
ninoderkinderen 0:8d87bc453349 108 return;
ninoderkinderen 0:8d87bc453349 109 }
ninoderkinderen 0:8d87bc453349 110
ninoderkinderen 0:8d87bc453349 111 DBG("Handler found.\r\n");
ninoderkinderen 0:8d87bc453349 112
ninoderkinderen 0:8d87bc453349 113 //HTTPRequestHandler* pHdlr = (*it).second(rootPath.c_str(), subPath.c_str(), m_pTCPSocket);
ninoderkinderen 0:8d87bc453349 114 //NEW CODE 1 LINE:
ninoderkinderen 0:8d87bc453349 115 HTTPRequestHandler* pHdlr = (*it).second((*it).first.c_str(), path.c_str() + root_len, m_pTCPSocket);
ninoderkinderen 0:8d87bc453349 116 m_pTCPSocket = NULL; //We don't own it anymore
ninoderkinderen 0:8d87bc453349 117
ninoderkinderen 0:8d87bc453349 118 switch(methCode)
ninoderkinderen 0:8d87bc453349 119 {
ninoderkinderen 0:8d87bc453349 120 case HTTP_GET:
ninoderkinderen 0:8d87bc453349 121 pHdlr->doGet();
ninoderkinderen 0:8d87bc453349 122 break;
ninoderkinderen 0:8d87bc453349 123 case HTTP_POST:
ninoderkinderen 0:8d87bc453349 124 pHdlr->doPost();
ninoderkinderen 0:8d87bc453349 125 break;
ninoderkinderen 0:8d87bc453349 126 case HTTP_HEAD:
ninoderkinderen 0:8d87bc453349 127 pHdlr->doHead();
ninoderkinderen 0:8d87bc453349 128 break;
ninoderkinderen 0:8d87bc453349 129 }
ninoderkinderen 0:8d87bc453349 130
ninoderkinderen 0:8d87bc453349 131 DBG("Req handled (or being handled)\r\n");
ninoderkinderen 0:8d87bc453349 132 close();
ninoderkinderen 0:8d87bc453349 133 }
ninoderkinderen 0:8d87bc453349 134
ninoderkinderen 0:8d87bc453349 135 void HTTPRequestDispatcher::close() //Close socket and destroy data
ninoderkinderen 0:8d87bc453349 136 {
ninoderkinderen 0:8d87bc453349 137 if(m_closed)
ninoderkinderen 0:8d87bc453349 138 return;
ninoderkinderen 0:8d87bc453349 139 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
ninoderkinderen 0:8d87bc453349 140 m_watchdog.detach();
ninoderkinderen 0:8d87bc453349 141 if(m_pTCPSocket) //m_pTCPSocket Should only be destroyed if ownership not passed to an handler
ninoderkinderen 0:8d87bc453349 142 {
ninoderkinderen 0:8d87bc453349 143 m_pTCPSocket->resetOnEvent();
ninoderkinderen 0:8d87bc453349 144 m_pTCPSocket->close();
ninoderkinderen 0:8d87bc453349 145 delete m_pTCPSocket; //This fn might have been called by this socket (through an event), so DO NOT DESTROY IT HERE
ninoderkinderen 0:8d87bc453349 146 }
ninoderkinderen 0:8d87bc453349 147 NetService::close();
ninoderkinderen 0:8d87bc453349 148 }
ninoderkinderen 0:8d87bc453349 149
ninoderkinderen 0:8d87bc453349 150
ninoderkinderen 0:8d87bc453349 151 void HTTPRequestDispatcher::onTimeout() //Connection has timed out
ninoderkinderen 0:8d87bc453349 152 {
ninoderkinderen 0:8d87bc453349 153 close();
ninoderkinderen 0:8d87bc453349 154 }
ninoderkinderen 0:8d87bc453349 155
ninoderkinderen 0:8d87bc453349 156 bool HTTPRequestDispatcher::getRequest(string* path, string* meth)
ninoderkinderen 0:8d87bc453349 157 {
ninoderkinderen 0:8d87bc453349 158 char req[128];
ninoderkinderen 0:8d87bc453349 159 char c_path[128];
ninoderkinderen 0:8d87bc453349 160 char c_meth[128];
ninoderkinderen 0:8d87bc453349 161 const int maxLen = 128;
ninoderkinderen 0:8d87bc453349 162 char* p = req;
ninoderkinderen 0:8d87bc453349 163 //Read Line
ninoderkinderen 0:8d87bc453349 164 int ret;
ninoderkinderen 0:8d87bc453349 165 int len = 0;
ninoderkinderen 0:8d87bc453349 166 for(int i = 0; i < maxLen - 1; i++)
ninoderkinderen 0:8d87bc453349 167 {
ninoderkinderen 0:8d87bc453349 168 ret = m_pTCPSocket->recv(p, 1);
ninoderkinderen 0:8d87bc453349 169 if(!ret)
ninoderkinderen 0:8d87bc453349 170 {
ninoderkinderen 0:8d87bc453349 171 break;
ninoderkinderen 0:8d87bc453349 172 }
ninoderkinderen 0:8d87bc453349 173 if( (len > 1) && *(p-1)=='\r' && *p=='\n' )
ninoderkinderen 0:8d87bc453349 174 {
ninoderkinderen 0:8d87bc453349 175 p--;
ninoderkinderen 0:8d87bc453349 176 len-=2;
ninoderkinderen 0:8d87bc453349 177 break;
ninoderkinderen 0:8d87bc453349 178 }
ninoderkinderen 0:8d87bc453349 179 else if( *p=='\n' )
ninoderkinderen 0:8d87bc453349 180 {
ninoderkinderen 0:8d87bc453349 181 len--;
ninoderkinderen 0:8d87bc453349 182 break;
ninoderkinderen 0:8d87bc453349 183 }
ninoderkinderen 0:8d87bc453349 184 p++;
ninoderkinderen 0:8d87bc453349 185 len++;
ninoderkinderen 0:8d87bc453349 186 }
ninoderkinderen 0:8d87bc453349 187 *p = 0;
ninoderkinderen 0:8d87bc453349 188
ninoderkinderen 0:8d87bc453349 189 DBG("Parsing request : %s\r\n", req);
ninoderkinderen 0:8d87bc453349 190
ninoderkinderen 0:8d87bc453349 191 ret = sscanf(req, "%s %s HTTP/%*d.%*d", c_meth, c_path);
ninoderkinderen 0:8d87bc453349 192 if(ret !=2)
ninoderkinderen 0:8d87bc453349 193 return false;
ninoderkinderen 0:8d87bc453349 194
ninoderkinderen 0:8d87bc453349 195 *meth = string(c_meth);
ninoderkinderen 0:8d87bc453349 196 // NEW CODE (old code removed):
ninoderkinderen 0:8d87bc453349 197 *path = string(c_path);
ninoderkinderen 0:8d87bc453349 198 return true;
ninoderkinderen 0:8d87bc453349 199 }
ninoderkinderen 0:8d87bc453349 200
ninoderkinderen 0:8d87bc453349 201
ninoderkinderen 0:8d87bc453349 202
ninoderkinderen 0:8d87bc453349 203 void HTTPRequestDispatcher::onTCPSocketEvent(TCPSocketEvent e)
ninoderkinderen 0:8d87bc453349 204 {
ninoderkinderen 0:8d87bc453349 205
ninoderkinderen 0:8d87bc453349 206 DBG("\r\nEvent %d\r\n", e);
ninoderkinderen 0:8d87bc453349 207
ninoderkinderen 0:8d87bc453349 208 if(m_closed)
ninoderkinderen 0:8d87bc453349 209 {
ninoderkinderen 0:8d87bc453349 210 DBG("\r\nWARN: Discarded\r\n");
ninoderkinderen 0:8d87bc453349 211 return;
ninoderkinderen 0:8d87bc453349 212 }
ninoderkinderen 0:8d87bc453349 213
ninoderkinderen 0:8d87bc453349 214 switch(e)
ninoderkinderen 0:8d87bc453349 215 {
ninoderkinderen 0:8d87bc453349 216 case TCPSOCKET_READABLE:
ninoderkinderen 0:8d87bc453349 217 m_watchdog.detach();
ninoderkinderen 0:8d87bc453349 218 m_pTCPSocket->resetOnEvent();
ninoderkinderen 0:8d87bc453349 219 //Req arrived, dispatch :
ninoderkinderen 0:8d87bc453349 220 dispatchRequest();
ninoderkinderen 0:8d87bc453349 221 break;
ninoderkinderen 0:8d87bc453349 222 case TCPSOCKET_CONTIMEOUT:
ninoderkinderen 0:8d87bc453349 223 case TCPSOCKET_CONRST:
ninoderkinderen 0:8d87bc453349 224 case TCPSOCKET_CONABRT:
ninoderkinderen 0:8d87bc453349 225 case TCPSOCKET_ERROR:
ninoderkinderen 0:8d87bc453349 226 case TCPSOCKET_DISCONNECTED:
ninoderkinderen 0:8d87bc453349 227 close();
ninoderkinderen 0:8d87bc453349 228 break;
ninoderkinderen 0:8d87bc453349 229 }
ninoderkinderen 0:8d87bc453349 230
ninoderkinderen 0:8d87bc453349 231 }