realtimenetprots/sipfw/ProfileAgent/ProxyResolver/src/CProxyResolveActor.cpp
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     1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 // Name        : CProxyResolveActor.cpp
       
    15 // Part of     : ProxyResolver
       
    16 // Version     : SIP/4.0
       
    17 //
       
    18 
       
    19 
       
    20 
       
    21 #include "CProxyResolveActor.h"
       
    22 #include "CProxyResolvingQueue.h"
       
    23 #include "CProxyQuery.h"
       
    24 #include <nifman.h>
       
    25 
       
    26 
       
    27 // -----------------------------------------------------------------------------
       
    28 // CProxyResolveActor::NewL
       
    29 // -----------------------------------------------------------------------------
       
    30 //
       
    31 CProxyResolveActor* CProxyResolveActor::NewL()
       
    32     {
       
    33     CProxyResolveActor* self = CProxyResolveActor::NewLC();
       
    34     CleanupStack::Pop( self );
       
    35     return self;
       
    36     }
       
    37     
       
    38 // -----------------------------------------------------------------------------
       
    39 // CProxyResolveActor::NewLC
       
    40 // -----------------------------------------------------------------------------
       
    41 //
       
    42 CProxyResolveActor* CProxyResolveActor::NewLC()
       
    43     {
       
    44     CProxyResolveActor* self = new( ELeave )CProxyResolveActor();
       
    45     CleanupStack::PushL( self );
       
    46     self->ConstructL();
       
    47     return self;
       
    48     }
       
    49     
       
    50 // -----------------------------------------------------------------------------
       
    51 // CProxyResolveActor::~CProxyResolveActor
       
    52 // -----------------------------------------------------------------------------
       
    53 //
       
    54 CProxyResolveActor::~CProxyResolveActor()
       
    55     {
       
    56     Cancel();
       
    57     if ( iCurrentQuery )
       
    58         {
       
    59         delete iCurrentQuery;       
       
    60         }
       
    61     delete iRequestQueue;
       
    62     // close socket server
       
    63     iServer.Close();
       
    64 
       
    65     }
       
    66 
       
    67 // -----------------------------------------------------------------------------
       
    68 // CProxyResolveActor::ConstructL
       
    69 // -----------------------------------------------------------------------------
       
    70 //
       
    71 void CProxyResolveActor::ConstructL ()
       
    72     {
       
    73     iRequestQueue = CProxyResolvingQueue::NewL();
       
    74     // connect the socket server
       
    75     User::LeaveIfError( iServer.Connect() );
       
    76     }
       
    77     
       
    78     
       
    79 // -----------------------------------------------------------------------------
       
    80 // CProxyResolveActor::CProxyResolveActor
       
    81 // -----------------------------------------------------------------------------
       
    82 //
       
    83 CProxyResolveActor::CProxyResolveActor()
       
    84     : CActive( EPriorityStandard )
       
    85     {
       
    86     CActiveScheduler::Add( this );  
       
    87     }
       
    88     
       
    89     
       
    90 // -----------------------------------------------------------------------------
       
    91 // CProxyResolveActor::ResolveProxyL
       
    92 // -----------------------------------------------------------------------------
       
    93 //
       
    94 void CProxyResolveActor::ResolveProxyL( TUint&                     aRequestId, 
       
    95                                         TUint32                    aIapId, 
       
    96                                         MSIPProxyResolverObserver& aObserver )
       
    97     {
       
    98     CProxyQuery* query = CProxyQuery::NewL( iRequestQueue->NextRequestId(), 
       
    99                                             aIapId, aObserver, *this, 
       
   100                                             iServer );
       
   101     
       
   102     // add the query to the queue
       
   103     iRequestQueue->AddQuery( *query );
       
   104         
       
   105     // and return the ID to the user
       
   106     aRequestId = query->RequestId();    
       
   107     }
       
   108 
       
   109 
       
   110 // -----------------------------------------------------------------------------
       
   111 // void CProxyResolveActor::ConnectionReady(CProxyQuery* aQuery)
       
   112 //
       
   113 // Callback from CProxyQuery, indicating that opening RConnection for
       
   114 // this query is successful and completed
       
   115 //
       
   116 // -----------------------------------------------------------------------------
       
   117 //  
       
   118 void CProxyResolveActor::ConnectionReady( CProxyQuery* aQuery )
       
   119     {
       
   120     if( !IsActive() )
       
   121         {
       
   122         iCurrentQuery = aQuery;
       
   123         // detach this query from the queue (but do not delete)
       
   124         iRequestQueue->DetachByRequestId( aQuery->RequestId() );
       
   125         // perform the actual query
       
   126         PerformDHCPQuery(); 
       
   127         }
       
   128     }
       
   129 
       
   130 // -----------------------------------------------------------------------------
       
   131 // void CProxyResolveActor::PerformDHCPQuery()
       
   132 //
       
   133 // Perform the actual DHCP query using RConnection API call (Ioctl)
       
   134 //
       
   135 // -----------------------------------------------------------------------------
       
   136 //
       
   137 void CProxyResolveActor::PerformDHCPQuery()
       
   138     {
       
   139     if ( iCurrentQuery && !IsActive() )  
       
   140         {   
       
   141          //Make sure that the connection has been opened for this Query object
       
   142          if (iCurrentQuery->ConnectionOpened())
       
   143             {
       
   144             iCurrentQuery->Connection().Ioctl( KCOLConfiguration, 
       
   145                                                iCurrentQuery->CurrentQueryType(),
       
   146                                                iStatus, 
       
   147                                                iCurrentQuery->GetBuf() );      
       
   148             SetActive();
       
   149             }
       
   150         }
       
   151     }
       
   152 
       
   153 
       
   154 // -----------------------------------------------------------------------------
       
   155 // CProxyResolveActor::RunL
       
   156 // -----------------------------------------------------------------------------
       
   157 //
       
   158 void CProxyResolveActor::RunL()
       
   159     {
       
   160     TInt err = iStatus.Int();
       
   161     
       
   162     switch( err )
       
   163         {
       
   164         case KErrNone: 
       
   165             {
       
   166             // store results of this query
       
   167             iCurrentQuery->AddResultsL();            
       
   168             //make a new query (SIP addresses or domain names)
       
   169             iCurrentQuery->SetNextIndex();
       
   170             PerformDHCPQuery();        
       
   171             return;        
       
   172             }
       
   173             
       
   174         case KErrCancel: // ignore the cancel error code
       
   175             break;
       
   176         
       
   177         default: 
       
   178             {
       
   179             if ( iCurrentQuery->CurrentQueryType() == KConnGetSipServerDomain )
       
   180                 {
       
   181                 // Completed domain names. Now try IP addresses.
       
   182                 // Note: index is already 0.
       
   183                 iCurrentQuery->SetQueryType( KConnGetSipServerAddr );
       
   184                 PerformDHCPQuery();                                
       
   185                 return;        
       
   186                 }
       
   187             else
       
   188                 {
       
   189                 // No more data available, send results to the owner
       
   190                 iCurrentQuery->ResolvingRequestComplete();           
       
   191                 }
       
   192             }
       
   193             break;
       
   194         }
       
   195     
       
   196     // Finally, delete this CProxyQuery and process the next one
       
   197     delete iCurrentQuery;
       
   198     iCurrentQuery = NULL;
       
   199     ResolveNext();
       
   200     }
       
   201 
       
   202 // -----------------------------------------------------------------------------
       
   203 // CProxyResolveActor::ResolveNext
       
   204 // Delete the current query and process the next one with opened RConnection
       
   205 // -----------------------------------------------------------------------------
       
   206 //
       
   207 void CProxyResolveActor::ResolveNext()
       
   208     {
       
   209     if(!IsActive())
       
   210         {
       
   211         if ( iCurrentQuery )
       
   212             {
       
   213             delete iCurrentQuery; 
       
   214             iCurrentQuery = NULL;
       
   215             }
       
   216             
       
   217         // get next CProxyQuery object, whose RConnection is opened
       
   218         iCurrentQuery = iRequestQueue->NextReadyQuery();
       
   219         PerformDHCPQuery();
       
   220         }
       
   221     }
       
   222 
       
   223 // -----------------------------------------------------------------------------
       
   224 // CProxyResolveActor::RunError
       
   225 // -----------------------------------------------------------------------------
       
   226 //
       
   227 TInt CProxyResolveActor::RunError( TInt aError )
       
   228     {
       
   229     TInt err = KErrNone;
       
   230     // delete the query, as RunL leaved with aError.
       
   231     if ( iCurrentQuery )
       
   232         {
       
   233         iCurrentQuery->ResolvingRequestFailed( aError );
       
   234         delete iCurrentQuery ; 
       
   235         iCurrentQuery  = NULL;
       
   236         }
       
   237     if( aError == KErrNoMemory )
       
   238         {
       
   239         err = aError;
       
   240         }
       
   241     ResolveNext();
       
   242     return err;
       
   243     }
       
   244 
       
   245 // -----------------------------------------------------------------------------
       
   246 // CProxyResolveActor::CancelById
       
   247 // -----------------------------------------------------------------------------
       
   248 //                     
       
   249 void CProxyResolveActor::CancelById( TUint aRequestId )
       
   250     {
       
   251     if ( iCurrentQuery && iCurrentQuery->RequestId() == aRequestId )
       
   252         {
       
   253         Cancel();
       
   254         iRequestQueue->DetachByRequestId( aRequestId );
       
   255         delete iCurrentQuery;
       
   256         iCurrentQuery = NULL;
       
   257         ResolveNext();
       
   258         }
       
   259     else
       
   260         {
       
   261         iRequestQueue->DeleteByRequestId( aRequestId );
       
   262         }
       
   263     }
       
   264 
       
   265 // -----------------------------------------------------------------------------
       
   266 // CProxyResolveActor::DoCancel
       
   267 // -----------------------------------------------------------------------------
       
   268 //  
       
   269 void CProxyResolveActor::DoCancel()
       
   270     {   
       
   271     // if iCurrentQuery is not null, request has been issued for 
       
   272     // the iCurrentQuery, do the cancel action
       
   273     if ( iCurrentQuery )
       
   274         {
       
   275         iCurrentQuery->Connection().CancelIoctl(); 
       
   276         }
       
   277     }
       
   278 
       
   279 // -----------------------------------------------------------------------------
       
   280 // CProxyResolveActor::ErrorOccured
       
   281 // Callback from CProxyQuery, indicating that opening RConnection failed
       
   282 //
       
   283 // -----------------------------------------------------------------------------
       
   284 //  
       
   285 void CProxyResolveActor::ErrorOccured( TInt aError, CProxyQuery* aQuery )
       
   286     {
       
   287     aQuery->ResolvingRequestFailed( aError );
       
   288     iRequestQueue->DeleteByRequestId( aQuery->RequestId() );
       
   289     }