Changes made for RPC

HTTPConnection.h

Committer:
leihen
Date:
2013-05-28
Revision:
3:d6224049b3bf
Parent:
2:8653bbcf7e58
Child:
4:d065642c32cc

File content as of revision 3:d6224049b3bf:

/* HTTPConnection.h */
/*
Copyright (c) 2013 Henry Leinen (henry[dot]leinen [at] online [dot] de)
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef __HTTPConnection_H__
#define __HTTPConnection_H__

#include "mbed.h"
#include "TCPSocketConnection.h"

#include <string>
#include <map>

class HTTPServer;

/** Type HTTPRequestType enumerates request types
*/
typedef enum 
{
    HTTP_RT_GET,        /*!< GET request */
    HTTP_RT_POST,       /*!< POST request */
    HTTP_RT_PUT,        /*!< PUT request */
    HTTP_RT_OPTIONS,    /*!< OPTIONS request */
    HTTP_RT_HEAD,       /*!< HEAD request */
    HTTP_RT_DELETE,     /*!< DELETE request */
    HTTP_RT_TRACE,      /*!< TRACE request */
    HTTP_RT_CONNECT     /*!< CONNECT request */
} HTTPRequestType;


/** class HTTPConnection, encapsulates one connection being made throught the HTTPServer
 *
 */
class HTTPConnection {
    public:
        
        /** HTTPMessage contains all the details of the request received by external HTTP client.
        */
        typedef struct 
        {
            /** Specifies the request type received
            */
            HTTPRequestType             request;
            /** The uri associated with the request.
            */
            std::string                 uri;
            /** Contains the HTTP/1.1 or HTTP/1.0 version requested by client.
            */
            std::string                 version;
            /** Map of headers provided by the client in the form <HeaderName>:<HeaderValue>
            */
            std::map<std::string, std::string>    headers;
        } HTTPMessage;
        /** Public constructor for HTTPConnection objects.
         *
         */
        HTTPConnection ();
        
        /** Destructor for HTTPConnection objects.
        *
        */
        ~HTTPConnection();
        
        /** Query if this connection is already closed and can be deleted.
        @returns true, if connection is closed.
        */
        bool is_closed();
        
        /** Polling function for the connection.
        * @returns -1 if connection is not required anymore. In the current version of this library this should be the normal case. This may change in future versions.
        */
        int poll();
    
    protected:
        
        /** Function to close this connection. To be called from internally.
        */
        void close();

        friend class HTTPServer;
                        
        TCPSocketConnection m_Tcp;
        HTTPMessage m_Msg;
        int parse(char *buffer);
        int parseHeader(char *buffer);
        int receiveHeaders(const char* buffer, int nBuffSize);
        int receiveLine(char* szLine, int nMaxLen, int nTimeout = -1, char szLineTerm = '\n');

};

#endif // __HTTPConnection_H__