wmdrm/camese/wmdrmdladefaulthttpplugin/src/wmdrmdladefaultmetering.cpp
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     1 /*
       
     2 * Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  WMDRM DLA Default Metering
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <chttpformencoder.h>
       
    20 #include <httpstringconstants.h>
       
    21 #include <httperr.h>
       
    22 #include <http/rhttpheaders.h>
       
    23 #include <http/thttphdrfielditer.h>
       
    24 #include <stringpool.h>
       
    25 #include <escapeutils.h>
       
    26 #include <wmdrmdlatypes.h>
       
    27 #include <wmdrmdlauinotifier.h>
       
    28 #include "wmdrmdladefaultmetering.h"
       
    29 #include "wmdrmdladefaulthttpplugin.h"
       
    30 #include "wmdrmdladefaulthttpmanager.h"
       
    31 
       
    32 #define _LOGGING_FILE L"wmdrmdladefaulthttpplugin.txt"
       
    33 #include "logfn.h"
       
    34 
       
    35 // CONSTANTS
       
    36 _LIT8( KDefaultIdentifier, "camese" );
       
    37 
       
    38 _LIT8( KAcceptHeader8, "*/*" );
       
    39 _LIT8( KAcceptLanguageHeader8, "en-us" );
       
    40 _LIT8( KPostContentTypeHeader8, "application/x-www-form-urlencoded" );
       
    41 
       
    42 _LIT8( KDataTypeMeteringResponse, "application/vnd.ms-wmdrm.meter-resp" );
       
    43 _LIT8( KGetMeterChallengeParam8, "meterchallenge" );
       
    44 
       
    45 // ======== LOCAL FUNCTIONS ========
       
    46 
       
    47 // ======== MEMBER FUNCTIONS ========
       
    48 
       
    49 // ---------------------------------------------------------------------------
       
    50 // CWmDrmDlaDefaultMetering::ConstructL
       
    51 // ---------------------------------------------------------------------------
       
    52 //
       
    53 void CWmDrmDlaDefaultMetering::ConstructL()
       
    54     {
       
    55     LOGFN( "CWmDrmDlaDefaultMetering::ConstructL" );
       
    56     iHttpManager = CWmDrmDlaDefaultHttpManager::NewL( *this );
       
    57     iHttpManager->SetKeepAlive( ETrue );
       
    58     }
       
    59 
       
    60 // ---------------------------------------------------------------------------
       
    61 // CWmDrmDlaDefaultMetering::CWmDrmDlaDefaultMetering
       
    62 // ---------------------------------------------------------------------------
       
    63 //
       
    64 CWmDrmDlaDefaultMetering::CWmDrmDlaDefaultMetering( 
       
    65     CWmDrmDlaDefaultHttpPlugin* aPlugin ) 
       
    66     : iState( CWmDrmDlaDefaultMetering::ENotActive ), iPlugin( aPlugin )
       
    67     {
       
    68     LOGFN( "CWmDrmDlaDefaultMetering::CWmDrmDlaDefaultMetering" );
       
    69     }
       
    70 
       
    71 // ---------------------------------------------------------------------------
       
    72 // CWmDrmDlaDefaultMetering::NewL
       
    73 // ---------------------------------------------------------------------------
       
    74 //
       
    75 CWmDrmDlaDefaultMetering* CWmDrmDlaDefaultMetering::NewL(
       
    76     CWmDrmDlaDefaultHttpPlugin* aPlugin )
       
    77     {
       
    78     LOGFN( "CWmDrmDlaDefaultMetering::NewL" );
       
    79     CWmDrmDlaDefaultMetering* self 
       
    80         = new( ELeave ) CWmDrmDlaDefaultMetering( aPlugin );
       
    81     CleanupStack::PushL( self );
       
    82     self->ConstructL();
       
    83     CleanupStack::Pop( self );
       
    84     return self;
       
    85     }
       
    86 
       
    87 // ---------------------------------------------------------------------------
       
    88 // CWmDrmDlaDefaultMetering::~CWmDrmDlaDefaultMetering
       
    89 // ---------------------------------------------------------------------------
       
    90 //
       
    91 CWmDrmDlaDefaultMetering::~CWmDrmDlaDefaultMetering()
       
    92     {
       
    93     LOGFN( "CWmDrmDlaDefaultMetering::~CWmDrmDlaDefaultMetering" );
       
    94     delete iHttpManager;
       
    95     delete iFormEncoder;
       
    96     delete iMeteringResponse;
       
    97     delete iMeteringServerUrl;
       
    98     }
       
    99 
       
   100 // ---------------------------------------------------------------------------
       
   101 // CWmDrmDlaDefaultMetering::SupportedMeteringCertificateL
       
   102 // ---------------------------------------------------------------------------
       
   103 //
       
   104 TBool CWmDrmDlaDefaultMetering::SupportedMeteringCertificateL( 
       
   105     const TDesC8& aCertificate,
       
   106     CWmDrmDlaUiNotifier*& aUiNotifier )
       
   107     {
       
   108     LOGFN( "CWmDrmDlaDefaultMetering::SupportedMeteringCertificateL" );
       
   109     
       
   110     TBool supported( iPlugin->Supported( aCertificate, KDefaultIdentifier ) );
       
   111     if ( supported )
       
   112         {
       
   113         iPlugin->InitializeUiNotifierL();
       
   114         aUiNotifier = iPlugin->UiNotifier();
       
   115         }
       
   116     LOG2( "supported: %d", supported );     
       
   117     return supported;
       
   118     }
       
   119 
       
   120 // ---------------------------------------------------------------------------
       
   121 // CWmDrmDlaDefaultMetering::ProcessMeteringChallenge
       
   122 // ---------------------------------------------------------------------------
       
   123 //
       
   124 void CWmDrmDlaDefaultMetering::ProcessMeteringChallenge( 
       
   125     const TDesC8& aMeteringChallenge, 
       
   126     const TDesC& aUrl, 
       
   127     TRequestStatus& aStatus )
       
   128     {
       
   129     TInt err( KErrNone );
       
   130     
       
   131     LOGFNR( "CWmDrmDlaDefaultMetering::ProcessMeteringChallenge", err );
       
   132     
       
   133     iPlugin->UiNotifier()->SetProgress( EProcessingMeteringChallenge );
       
   134     aStatus = KRequestPending;
       
   135     iClientStatus = &aStatus;
       
   136     
       
   137     delete iMeteringServerUrl;
       
   138     iMeteringServerUrl = NULL;
       
   139     iMeteringServerUrl = aUrl.Alloc();
       
   140     if ( !iMeteringServerUrl )
       
   141         {
       
   142         CompleteClientRequest( KErrNoMemory );
       
   143         return;
       
   144         }
       
   145     
       
   146     TRAP( err, ProcessMeteringChallengeL( aMeteringChallenge ) );
       
   147     if ( err )
       
   148         {
       
   149         CompleteClientRequest( err );
       
   150         return;
       
   151         }
       
   152     iState = CWmDrmDlaDefaultMetering::ESendingMeteringChallenge;
       
   153     }
       
   154 
       
   155 // ---------------------------------------------------------------------------
       
   156 // CWmDrmDlaDefaultMetering::GetMeteringResponse
       
   157 // ---------------------------------------------------------------------------
       
   158 //
       
   159 void CWmDrmDlaDefaultMetering::GetMeteringResponse( 
       
   160     HBufC8*& aResponse, 
       
   161     TRequestStatus& aStatus )
       
   162     {
       
   163     TInt err( KErrNone );
       
   164     
       
   165     LOGFNR( "CWmDrmDlaDefaultMetering::GetMeteringResponse", err );
       
   166         
       
   167     aStatus = KRequestPending;
       
   168     iClientStatus = &aStatus;
       
   169     
       
   170     if ( iMeteringResponse )
       
   171         {
       
   172         aResponse = iMeteringResponse->Alloc();
       
   173         if ( !aResponse )
       
   174             {
       
   175             err = KErrNoMemory;
       
   176             }
       
   177         }
       
   178     else
       
   179         {
       
   180         aResponse = NULL;
       
   181         }
       
   182     CompleteClientRequest( err );
       
   183     }
       
   184 
       
   185 // ---------------------------------------------------------------------------
       
   186 // CWmDrmDlaDefaultMetering::MeteringFinished
       
   187 // ---------------------------------------------------------------------------
       
   188 //
       
   189 void CWmDrmDlaDefaultMetering::MeteringFinished()
       
   190     {
       
   191     LOGFN( "CWmDrmDlaDefaultMetering::MeteringFinished" );
       
   192     iPlugin->UiNotifier()->SetProgress( EIdle );
       
   193     }
       
   194 
       
   195 // ---------------------------------------------------------------------------
       
   196 // CWmDrmDlaDefaultMetering::CancelMetering
       
   197 // ---------------------------------------------------------------------------
       
   198 //
       
   199 void CWmDrmDlaDefaultMetering::CancelMetering()
       
   200     {
       
   201     LOGFN( "CWmDrmDlaDefaultMetering::CancelMetering" );
       
   202     iHttpManager->Stop();
       
   203     CompleteClientRequest( KErrCancel );
       
   204     }
       
   205 
       
   206 // ---------------------------------------------------------------------------
       
   207 // CWmDrmDlaDefaultHttpPlugin::SetIapId
       
   208 // ---------------------------------------------------------------------------
       
   209 //
       
   210 void CWmDrmDlaDefaultMetering::SetIapId( TInt aIapId )
       
   211     {
       
   212     LOGFN( "CWmDrmDlaDefaultMetering::SetIapId" );
       
   213     LOG2( "aIapId: %d", aIapId );
       
   214     iHttpManager->SetIapId( aIapId );
       
   215     }
       
   216 
       
   217 // ----------------------------------------------------------------------------
       
   218 // CWmDrmDlaDefaultMetering::OnGetUsernamePasswordL
       
   219 // From MHttpManagerObserver
       
   220 // This function is called when using HTTPS authentication. Authentication is 
       
   221 // not currently used in the Camese project
       
   222 // ----------------------------------------------------------------------------
       
   223 //
       
   224 TBool CWmDrmDlaDefaultMetering::OnGetUsernamePasswordL(
       
   225     HBufC8*& /*aUsername*/,
       
   226     HBufC8*& /*aPassword*/)
       
   227     {
       
   228     LOGFN( "CWmDrmDlaDefaultMetering::OnGetUsernamePasswordL" );
       
   229     return EFalse;
       
   230     }
       
   231 
       
   232 // ----------------------------------------------------------------------------
       
   233 // CWmDrmDlaDefaultMetering::OnResponseHeadersL
       
   234 // From MHttpManagerObserver
       
   235 // ----------------------------------------------------------------------------
       
   236 //
       
   237 void CWmDrmDlaDefaultMetering::OnResponseHeadersL(
       
   238     const RHTTPResponse& /*aResponse*/,
       
   239     const RHTTPHeaders& aHeaders,
       
   240     const RStringPool& aStringPool,
       
   241     TInt aHttpStatus )
       
   242     {
       
   243     LOGFN( "CWmDrmDlaDefaultMetering::OnResponseHeadersL" );
       
   244     LOG2( "iState: %d", iState );
       
   245     LOG2( "aHttpStatus: %d", aHttpStatus );
       
   246     if ( aHttpStatus == HTTPStatus::EOk )
       
   247         {
       
   248         RStringF contentTypeNameStr 
       
   249             = aStringPool.StringF( HTTP::EContentType, 
       
   250                                    RHTTPSession::GetTable() );
       
   251 
       
   252         // read the first part of content-type field
       
   253         THTTPHdrVal contentTypeVal;
       
   254         if( !aHeaders.GetField( contentTypeNameStr, 0, contentTypeVal ) )
       
   255             {
       
   256             //Metering
       
   257             if ( iState == 
       
   258                         CWmDrmDlaDefaultMetering::ESendingMeteringChallenge &&
       
   259                  contentTypeVal.StrF().DesC().MatchF( 
       
   260                          KDataTypeMeteringResponse ) != KErrNotFound )
       
   261                 {
       
   262                 iHttpStatus = HTTPStatus::EOk;
       
   263                 }
       
   264             else
       
   265                 {
       
   266                 iHttpStatus = KErrHttpDecodeContentType;
       
   267                 }
       
   268             }
       
   269         else
       
   270             {
       
   271             iHttpStatus = KErrHttpDecodeContentType;
       
   272             }
       
   273         contentTypeNameStr.Close();
       
   274         }
       
   275     else
       
   276         {
       
   277         iHttpStatus = aHttpStatus;
       
   278         }
       
   279     }
       
   280 
       
   281 // ----------------------------------------------------------------------------
       
   282 // CWmDrmDlaDefaultMetering::OnResponseBodyDataL
       
   283 // From MHttpManagerObserver
       
   284 // ----------------------------------------------------------------------------
       
   285 //
       
   286 void CWmDrmDlaDefaultMetering::OnResponseBodyDataL( const TPtrC8 aDataChunk )
       
   287     {
       
   288     LOGFN( "CWmDrmDlaDefaultMetering::OnResponseBodyDataL" );
       
   289     LOG2( "iState: %d", iState );
       
   290     LOG2( "iHttpStatus: %d", iHttpStatus );
       
   291     if ( iHttpStatus == HTTPStatus::EOk && 
       
   292          iState == CWmDrmDlaDefaultMetering::ESendingMeteringChallenge )
       
   293         {
       
   294         if ( !iMeteringResponse )
       
   295             {
       
   296             iMeteringResponse = HBufC8::NewL( aDataChunk.Length() );
       
   297             }
       
   298         else
       
   299             {
       
   300             iMeteringResponse 
       
   301                 = iMeteringResponse->ReAllocL( iMeteringResponse->Length() + 
       
   302                                                aDataChunk.Length() );
       
   303             }
       
   304         iMeteringResponse->Des().Append( aDataChunk );
       
   305         }
       
   306     }
       
   307 
       
   308 // ----------------------------------------------------------------------------
       
   309 // CWmDrmDlaDefaultMetering::OnTransactionComplete
       
   310 // From MHttpManagerObserver
       
   311 // ----------------------------------------------------------------------------
       
   312 //
       
   313 void CWmDrmDlaDefaultMetering::OnTransactionComplete( TInt aSystemError )
       
   314     {
       
   315     LOGFN( "CWmDrmDlaDefaultMetering::OnTransactionComplete" );
       
   316     LOG2( "iState: %d", iState );
       
   317     LOG2( "aSystemError: %d", aSystemError );
       
   318     LOG2( "iHttpStatus: %d", iHttpStatus );
       
   319     if ( iHttpStatus == HTTPStatus::EOk && !aSystemError )
       
   320         {
       
   321         CompleteClientRequest( aSystemError );
       
   322         }
       
   323     else if ( iHttpStatus != HTTPStatus::EOk )
       
   324         {
       
   325         CompleteClientRequest( KErrCommsBreak );
       
   326         }
       
   327     else
       
   328         {
       
   329         CompleteClientRequest( aSystemError );
       
   330         }
       
   331     iState = CWmDrmDlaDefaultMetering::ENotActive;
       
   332     }
       
   333 
       
   334 // ----------------------------------------------------------------------------
       
   335 // CWmDrmDlaDefaultMetering::CompleteClientRequest
       
   336 // ----------------------------------------------------------------------------
       
   337 //
       
   338 void CWmDrmDlaDefaultMetering::CompleteClientRequest( TInt aError )
       
   339     {
       
   340     LOGFN( "CWmDrmDlaDefaultMetering::CompleteClientRequest" );
       
   341     LOG2( "aError: %d", aError );
       
   342     if ( iClientStatus )
       
   343         {
       
   344         User::RequestComplete( iClientStatus, aError );
       
   345         iClientStatus = NULL;
       
   346         }
       
   347     }
       
   348 
       
   349 // ---------------------------------------------------------------------------
       
   350 // CWmDrmDlaDefaultMetering::ProcessMeteringChallengeL
       
   351 // ---------------------------------------------------------------------------
       
   352 //
       
   353 void CWmDrmDlaDefaultMetering::ProcessMeteringChallengeL( 
       
   354     const TDesC8& aMeteringChallenge )
       
   355     {
       
   356     LOGFN( "CWmDrmDlaDefaultMetering::ProcessMeteringChallengeL" );
       
   357     // Make an 8-bit URI of the challenge URL.
       
   358     HBufC8* meteringServerUrl8( 
       
   359             EscapeUtils::ConvertFromUnicodeToUtf8L( *iMeteringServerUrl ) );
       
   360     CleanupStack::PushL( meteringServerUrl8 );
       
   361     TUriParser8 uri;
       
   362     User::LeaveIfError( uri.Parse( *meteringServerUrl8 ) );
       
   363     
       
   364     // POST the DrmHeader status to the server
       
   365     // Set headers
       
   366     RArray< CWmDrmDlaDefaultHttpManager::THeader > headers;
       
   367     CleanupClosePushL( headers );
       
   368 
       
   369     headers.AppendL( CWmDrmDlaDefaultHttpManager::THeader( HTTP::EAccept,
       
   370                                                            KAcceptHeader8 ) );
       
   371     headers.AppendL( 
       
   372             CWmDrmDlaDefaultHttpManager::THeader( HTTP::EAcceptLanguage, 
       
   373                                                   KAcceptLanguageHeader8 ) );
       
   374     headers.AppendL( 
       
   375             CWmDrmDlaDefaultHttpManager::THeader( HTTP::EContentType, 
       
   376                                                   KPostContentTypeHeader8 ) );
       
   377     
       
   378     // Set POST contents
       
   379     delete iFormEncoder;
       
   380     iFormEncoder = NULL;
       
   381     iFormEncoder = CHTTPFormEncoder::NewL();
       
   382     iFormEncoder->AddFieldL( KGetMeterChallengeParam8, aMeteringChallenge );
       
   383 
       
   384     iHttpManager->Post( *meteringServerUrl8, headers, iFormEncoder );
       
   385 
       
   386     CleanupStack::PopAndDestroy( 2, meteringServerUrl8 ); //headers, 
       
   387                                                           //meteringServerUrl8
       
   388     }