HTTPRequestHandler.h

00001 
00002 /*
00003 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
00004  
00005 Permission is hereby granted, free of charge, to any person obtaining a copy
00006 of this software and associated documentation files (the "Software"), to deal
00007 in the Software without restriction, including without limitation the rights
00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00009 copies of the Software, and to permit persons to whom the Software is
00010 furnished to do so, subject to the following conditions:
00011  
00012 The above copyright notice and this permission notice shall be included in
00013 all copies or substantial portions of the Software.
00014  
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00018 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00019 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00020 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00021 THE SOFTWARE.
00022 */
00023 
00024 /**
00025 HTTP Request Handler header file.
00026 */
00027 
00028 #ifndef HTTP_REQUEST_HANDLER_H
00029 #define HTTP_REQUEST_HANDLER_H
00030 
00031 #include "api/TCPSocket.h"
00032 //#include "HTTPServer.h"
00033 
00034 #include "mbed.h"
00035 #include "core/netservice.h"
00036 
00037 #include <string>
00038 using std::string;
00039 
00040 #include <map>
00041 using std::map;
00042 
00043 ///HTTP Server's generic request handler
00044 class HTTPRequestHandler : public NetService
00045 {
00046 public:
00047   ///Instantiated by the HTTP Server
00048   HTTPRequestHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket);
00049   virtual ~HTTPRequestHandler();
00050 
00051 //protected:
00052   virtual void doGet() = 0;
00053   virtual void doPost() = 0;
00054   virtual void doHead() = 0;
00055   
00056   virtual void onReadable() = 0; //Data has been read
00057   virtual void onWriteable() = 0; //Data has been written & buf is free
00058   virtual void onTimeout(); //Connection has timed out
00059   virtual void onClose() = 0; //Connection is closing
00060   
00061   virtual void close(); //Close socket and destroy data
00062 
00063 protected:  
00064   map<string, string>& reqHeaders() /*const*/;
00065   string& path() /*const*/;
00066   int dataLen() const;
00067   int readData(char* buf, int len);
00068   string& rootPath() /*const*/;
00069   
00070   void setErrCode(int errc);
00071   void setContentLen(int len);
00072   
00073   map<string, string>& respHeaders();
00074   int writeData(const char* buf, int len);
00075   
00076   void setTimeout(int ms);
00077   void resetTimeout();
00078 
00079 private:
00080   void readHeaders(); //Called at instanciation
00081   void writeHeaders(); //Called at the first writeData call
00082   void onTCPSocketEvent(TCPSocketEvent e);
00083    
00084   TCPSocket* m_pTCPSocket;
00085   map<string, string> m_reqHeaders;
00086   map<string, string> m_respHeaders;
00087   string m_rootPath;
00088   string m_path;
00089   int m_errc; //Response code
00090   
00091   Timeout m_watchdog;
00092   int m_timeout;
00093   
00094   bool m_closed;
00095   bool m_headersSent;
00096   
00097   int readLine(char* str, int maxLen);
00098 
00099 };
00100 
00101 #endif