cimexportresponsedecoder.cpp

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
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// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
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#include <Pegasus/Common/Config.h>
#include <iostream>
#include <Pegasus/Common/Constants.h>
#include <Pegasus/Common/XmlParser.h>
#include <Pegasus/Common/XmlReader.h>
#include <Pegasus/Common/System.h>
#include <Pegasus/Common/XmlWriter.h>
#include <Pegasus/Common/HTTPMessage.h>
#include <Pegasus/Common/CIMMessage.h>
#include <Pegasus/Common/Exception.h>
#include "CIMExportResponseDecoder.h"

// l10n
#include <Pegasus/Common/MessageLoader.h>

PEGASUS_USING_STD;

PEGASUS_NAMESPACE_BEGIN

CIMExportResponseDecoder::CIMExportResponseDecoder(
   MessageQueue* outputQueue,
   MessageQueue* encoderQueue,
   ClientAuthenticator* authenticator)
   :
   MessageQueue(PEGASUS_QUEUENAME_EXPORTRESPDECODER),
   _outputQueue(outputQueue),
   _encoderQueue(encoderQueue),
   _authenticator(authenticator)
{
    PEG_METHOD_ENTER (TRC_EXPORT_CLIENT, "CIMExportResponseDecoder::CIMExportResponseDecoder()");
    PEG_METHOD_EXIT();
}

CIMExportResponseDecoder::~CIMExportResponseDecoder()
{
    PEG_METHOD_ENTER (TRC_EXPORT_CLIENT, "CIMExportResponseDecoder::~CIMExportResponseDecoder()");
    _outputQueue.release();
    _encoderQueue.release();
    _authenticator.release();
    PEG_METHOD_EXIT();
}

void  CIMExportResponseDecoder::setEncoderQueue(MessageQueue* encoderQueue)
{
   PEG_METHOD_ENTER (TRC_EXPORT_CLIENT, "CIMExportResponseDecoder::setEncoderQueue()");
   _encoderQueue.release();
   _encoderQueue.reset(encoderQueue);
   PEG_METHOD_EXIT();
}


void CIMExportResponseDecoder::handleEnqueue()
{
   PEG_METHOD_ENTER (TRC_EXPORT_CLIENT, "CIMExportResponseDecoder::handleEnqueue()");
   Message* message = dequeue();

   PEGASUS_ASSERT(message != 0);
   
   switch (message->getType())
   {
      case HTTP_MESSAGE:
      {
         HTTPMessage* httpMessage = (HTTPMessage*)message;
         _handleHTTPMessage(httpMessage);
         break;
      }
      
      default:
         PEGASUS_ASSERT(0);
         break;
   }

   delete message;
   PEG_METHOD_EXIT();
}

void CIMExportResponseDecoder::_handleHTTPMessage(HTTPMessage* httpMessage)
{
    PEG_METHOD_ENTER (TRC_EXPORT_CLIENT,
        "CIMExportResponseDecoder::_handleHTTPMessage()");

    //
    //  Parse the HTTP CIM Export response message
    //
    ClientExceptionMessage* exceptionMessage;
    char* content;
    Array<HTTPHeader> headers;
    Uint32 contentLength;
    Uint32 statusCode;
    String reasonPhrase;
    Boolean cimReconnect;
    Boolean valid;
    HTTPExportResponseDecoder::parseHTTPHeaders(httpMessage, exceptionMessage,
        headers, contentLength, statusCode, reasonPhrase, cimReconnect, valid);

    //
    //  Return exception on any parse errors from the HTTP export response
    //  message
    //
    if (!valid)
    {
        _outputQueue->enqueue(exceptionMessage);
        PEG_METHOD_EXIT();
        return;
    }

   try
   {
       if (_authenticator->checkResponseHeaderForChallenge(headers))
       {
          //
          // Get the original request, put that in the encoder's queue for
          // re-sending with authentication challenge response.
          //

          Message* reqMessage = _authenticator->releaseRequestMessage();

          if (cimReconnect == true)
          {
              reqMessage->setCloseConnect(cimReconnect);
              _outputQueue->enqueue(reqMessage);
          }
          else
          {
              _encoderQueue->enqueue(reqMessage);
          }


          PEG_METHOD_EXIT();
          return;
       }
       else
       {
          //
          // Received a valid/error response from the server.
          // We do not need the original request message anymore, hence delete
          // the request message by getting the handle from the ClientAuthenticator.
          //
          Message* reqMessage = _authenticator->releaseRequestMessage();
          delete reqMessage;
       }
    }
    catch(InvalidAuthHeader& e)
    {
        AutoPtr<CIMClientMalformedHTTPException> malformedHTTPException(
            new CIMClientMalformedHTTPException(e.getMessage()));
        AutoPtr<ClientExceptionMessage> response(
            new ClientExceptionMessage(malformedHTTPException.get()));

        malformedHTTPException.release();

        response->setCloseConnect(cimReconnect);
        _outputQueue->enqueue(response.release());
        PEG_METHOD_EXIT();
        return;
    }

    //
    //  Validate the HTTP headers in the export response message
    //
    HTTPExportResponseDecoder::validateHTTPHeaders(httpMessage, headers,
        contentLength, statusCode, cimReconnect, reasonPhrase, content,
        exceptionMessage, valid);

    //
    //  Return exception on any errors in the HTTP headers in the export
    //  response message
    //
    if (!valid)
    {
        _outputQueue->enqueue(exceptionMessage);
        PEG_METHOD_EXIT();
        return;
    }

    //
    //  Decode the export response message
    //
    Message* responseMessage;
    HTTPExportResponseDecoder::decodeExportResponse(content, cimReconnect,
        responseMessage);
    _outputQueue->enqueue(responseMessage);

    PEG_METHOD_EXIT();
}

PEGASUS_NAMESPACE_END