natplugins/natptraversalcontroller/src/cnatbindingstunandcrlfrefresher.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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: 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "natfwstunbinding.h"
       
    20 #include "cnatbindingstunandcrlfrefresher.h"
       
    21 #include "cudpcrlfsender.h"
       
    22 #include "cnatbinding.h"
       
    23 
       
    24 // -----------------------------------------------------------------------------
       
    25 // CNATBindingSTUNAndCRLFRefresher::NewL
       
    26 // -----------------------------------------------------------------------------
       
    27 //
       
    28 CNATBindingSTUNAndCRLFRefresher* CNATBindingSTUNAndCRLFRefresher::NewL(
       
    29     CDeltaTimer& aDeltaTimer,
       
    30     TInt aRefreshInterval,
       
    31     MNATBindingRefresherObserver& aObserver,
       
    32     CNATBinding& aNATBinding,
       
    33     RSocket& aSocket,
       
    34     const TInetAddr& aAddr,
       
    35     MNATTraversalSocketManager& aSocketManager)
       
    36     {
       
    37     CNATBindingSTUNAndCRLFRefresher* self =
       
    38         CNATBindingSTUNAndCRLFRefresher::NewLC(
       
    39             aDeltaTimer,aRefreshInterval,aObserver,aNATBinding,aSocket,
       
    40             aAddr,aSocketManager);
       
    41     CleanupStack::Pop(self);
       
    42     return self;
       
    43     }
       
    44 
       
    45 // -----------------------------------------------------------------------------
       
    46 // CNATBindingSTUNAndCRLFRefresher::NewLC
       
    47 // -----------------------------------------------------------------------------
       
    48 //
       
    49 CNATBindingSTUNAndCRLFRefresher* CNATBindingSTUNAndCRLFRefresher::NewLC(
       
    50     CDeltaTimer& aDeltaTimer,
       
    51     TInt aRefreshInterval,
       
    52     MNATBindingRefresherObserver& aObserver,
       
    53     CNATBinding& aNATBinding,
       
    54     RSocket& aSocket,
       
    55     const TInetAddr& aAddr,
       
    56     MNATTraversalSocketManager& aSocketManager)
       
    57     {
       
    58     CNATBindingSTUNAndCRLFRefresher* self =
       
    59         new(ELeave)CNATBindingSTUNAndCRLFRefresher(aDeltaTimer,
       
    60                                                    aRefreshInterval,
       
    61                                                    aObserver,
       
    62                                                    aNATBinding);
       
    63     CleanupStack::PushL(self);
       
    64     self->ConstructL(aSocket,aAddr,aSocketManager);
       
    65     return self;
       
    66     }
       
    67 
       
    68 // -----------------------------------------------------------------------------
       
    69 // CNATBindingSTUNAndCRLFRefresher::CNATBindingSTUNAndCRLFRefresher
       
    70 // -----------------------------------------------------------------------------
       
    71 //
       
    72 CNATBindingSTUNAndCRLFRefresher::CNATBindingSTUNAndCRLFRefresher(
       
    73     CDeltaTimer& aDeltaTimer,
       
    74     TInt aRefreshInterval,
       
    75     MNATBindingRefresherObserver& aObserver,
       
    76     CNATBinding& aNATBinding)
       
    77     : CNATBindingSTUNRefresher(aDeltaTimer,aRefreshInterval,
       
    78                                aObserver,aNATBinding)
       
    79     {
       
    80     }
       
    81 
       
    82 // -----------------------------------------------------------------------------
       
    83 // CNATBindingSTUNAndCRLFRefresher::ConstructL
       
    84 // -----------------------------------------------------------------------------
       
    85 //
       
    86 void CNATBindingSTUNAndCRLFRefresher::ConstructL(
       
    87     RSocket& aSocket,
       
    88     const TInetAddr& aAddr,
       
    89     MNATTraversalSocketManager& aSocketManager)
       
    90     {
       
    91     iCRLFSender = new(ELeave)CUdpCRLFSender(aSocket,aAddr,*this,aSocketManager);
       
    92     }
       
    93 
       
    94 // -----------------------------------------------------------------------------
       
    95 // CNATBindingSTUNAndCRLFRefresher::~CNATBindingSTUNAndCRLFRefresher
       
    96 // -----------------------------------------------------------------------------
       
    97 //
       
    98 CNATBindingSTUNAndCRLFRefresher::~CNATBindingSTUNAndCRLFRefresher()
       
    99     {
       
   100     delete iCRLFSender;
       
   101     }
       
   102 
       
   103 // -----------------------------------------------------------------------------
       
   104 // CNATBindingSTUNAndCRLFRefresher::NATBindingRefreshComplete
       
   105 // From MNATBindingRefresherObserver
       
   106 // -----------------------------------------------------------------------------
       
   107 //
       
   108 void CNATBindingSTUNAndCRLFRefresher::NATBindingRefreshComplete(
       
   109     TInt aCompletionCode)
       
   110     {
       
   111     if (aCompletionCode == KErrNone)
       
   112         {
       
   113         CSTUNBinding* stunBinding = iNATBinding.Binding();
       
   114         if (stunBinding)
       
   115             {
       
   116             TRAPD(err,iNATBinding.SendSTUNRequestL())
       
   117             if (err)
       
   118                 {
       
   119                 iObserver.NATBindingRefreshComplete(err);
       
   120                 }
       
   121             }
       
   122         else
       
   123             {
       
   124             iObserver.NATBindingRefreshComplete(KErrNotFound);
       
   125             }
       
   126         }
       
   127     else
       
   128         {
       
   129         iObserver.NATBindingRefreshComplete(aCompletionCode);
       
   130         }
       
   131     }
       
   132 
       
   133 // -----------------------------------------------------------------------------
       
   134 // CNATBindingSTUNAndCRLFRefresher::RefreshTimerExpiredL
       
   135 // From CNATBindingRefresher
       
   136 // -----------------------------------------------------------------------------
       
   137 //
       
   138 void CNATBindingSTUNAndCRLFRefresher::RefreshTimerExpiredL()
       
   139     {
       
   140     // First send the CRLF burst and when that completes
       
   141     // send the STUN request (see NATBindingRefreshComplete).
       
   142     iCRLFSender->Cancel();
       
   143     iCRLFSender->CCRLFSender::Send();
       
   144     }
       
   145 
       
   146 // -----------------------------------------------------------------------------
       
   147 // CNATBindingSTUNAndCRLFRefresher::CancelRefresh
       
   148 // From CNATBindingRefresher
       
   149 // -----------------------------------------------------------------------------
       
   150 //
       
   151 void CNATBindingSTUNAndCRLFRefresher::CancelRefresh()
       
   152     {
       
   153     iCRLFSender->Cancel();
       
   154 
       
   155     CSTUNBinding* stunBinding = iNATBinding.Binding();
       
   156     if (stunBinding)
       
   157         {
       
   158         stunBinding->CancelRequest();
       
   159         }
       
   160     }