author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 14 Apr 2010 16:31:08 +0300 | |
branch | RCL_3 |
changeset 10 | 73e95e652591 |
parent 8 | fa2fd8b2d6cc |
child 53 | c59bddbfd7b9 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: ConnHandler filter |
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* |
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*/ |
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// INCLUDE FILES |
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#include <http.h> |
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#include <es_sock.h> |
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#include <ApEngineConsts.h> // defines bearer types |
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#include "HttpFilterConnHandler.h" |
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#include "HttpFilterConnHandlerObserverPS.h" |
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#include <PSVariables.h> // Publish & Subscribe |
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#include "httpfiltercommonstringsext.h" |
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#include "mconnectioncallback.h" |
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// uncomment for logging |
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//#include <flogger.h> |
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//_LIT(KDir, "connFilter"); |
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//_LIT(KFile, "filtererr.txt"); |
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// EXTERNAL DATA STRUCTURES |
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// EXTERNAL FUNCTION PROTOTYPES |
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void PanicHttpFiltersConnHandler(TInt aErr = 0); |
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// CONSTANTS |
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const TInt KConnHandlerOrderOffset = 10; |
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// MACROS |
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// LOCAL CONSTANTS AND MACROS |
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// MODULE DATA STRUCTURES |
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// LOCAL FUNCTION PROTOTYPES |
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// FORWARD DECLARATIONS |
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// ============================= LOCAL FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// LocalHostCheckL |
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// If the host is a local host. Returns ETrue |
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// if the transaction request URI was for a localhost. |
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// ----------------------------------------------------------------------------- |
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// |
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TBool LocalHostCheckL(RHTTPTransaction& aTransaction) |
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{ |
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_LIT8(KLoopbackIPv4Url, "http://127.0.0.1"); |
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RHTTPRequest request = aTransaction.Request(); |
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TUriC8 uri = request.URI(); |
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TUriParser8 parserLoopBack; |
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parserLoopBack.Parse(KLoopbackIPv4Url()); |
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TInt match = parserLoopBack.Compare(uri, EUriHost); |
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if (KErrNone != match) |
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{ |
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_LIT8(KLocalHostUrl, "http://localhost"); |
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// try another compare - compare against the "localhost". |
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TUriParser8 parserLocalHost; |
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parserLocalHost.Parse(KLocalHostUrl()); |
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match = parserLocalHost.Compare(uri, EUriHost); |
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if (KErrNone == match) |
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{ |
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_LIT8(KLoopbackIPv4, "127.0.0.1"); |
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// "localhost" resolves to "::1", manually, replace with "127.0.0.1" |
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CUri8* newUri = CUri8::NewLC(uri); |
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newUri->SetComponentL(KLoopbackIPv4(), EUriHost); |
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request.SetURIL(newUri->Uri()); |
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CleanupStack::PopAndDestroy(newUri); |
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} |
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} |
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if (KErrNone == match) |
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{ |
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return ETrue; |
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} |
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return EFalse; |
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} |
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// ============================ MEMBER FUNCTIONS =============================== |
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::CHttpFilterConnHandler |
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// C++ default constructor can NOT contain any code, that |
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// might leave. |
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// ----------------------------------------------------------------------------- |
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// |
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CHttpFilterConnHandler::CHttpFilterConnHandler(RHTTPSession* aSession, MConnectionCallback* aConnCallback): |
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iConnCallback (aConnCallback) |
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{ |
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__ASSERT_DEBUG(aConnCallback != NULL, PanicHttpFiltersConnHandler()); |
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__ASSERT_DEBUG(aSession != NULL, PanicHttpFiltersConnHandler()); |
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iSession = aSession; |
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} |
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|
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|
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// ------------------------------------------------------------------------------------------ |
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// CHttpFilterConnHandler::ConstructL |
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// Symbian 2nd phase constructor can leave. |
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// ------------------------------------------------------------------------------------------ |
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// |
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void CHttpFilterConnHandler::ConstructL() |
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{ |
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// Register the filter for THTTPSessionEvent::EConnect events, |
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// Adds a filter to the session's filter queue. |
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iSession->FilterCollection().AddFilterL(*this, // The filter to add |
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THTTPSessionEvent::EConnect, // The event that triggers this filter |
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RStringF(), // The header whose presence triggers this filter, or KNullDesC to trigger on any header |
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KAnyStatusCode, // The status code that triggers this filter, or KAnyStatusCode to trigger on any status code |
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ECache - KConnHandlerOrderOffset, // The position of the filter in the queue |
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iSession->StringPool().StringF(HttpFilterCommonStringsExt::EConnHandlerFilter, |
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HttpFilterCommonStringsExt::GetTable())); //The name of the filter to add |
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136 |
|
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// Register the filter for submit events, |
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// Adds a filter to the session's filter queue. |
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iSession->FilterCollection().AddFilterL(*this, // The filter to add |
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THTTPEvent::ESubmit, // The event that triggers this filter |
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RStringF(), // The header whose presence triggers this filter, or KNullDesC to trigger on any header |
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KAnyStatusCode, // The status code that triggers this filter, or KAnyStatusCode to trigger on any status code |
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ECache - KConnHandlerOrderOffset, // The position of the filter in the queue |
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iSession->StringPool().StringF(HttpFilterCommonStringsExt::EConnHandlerFilter, |
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HttpFilterCommonStringsExt::GetTable())); //The name of the filter to add |
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146 |
|
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// Create an instance of the CHttpFilterConnHandlerObserver in order to handle "No coverage" situation |
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iObserver = CHttpFilterConnHandlerObserver::NewL(iConnCallback); |
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} |
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150 |
|
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//--------------------------------------------------------------------------------------------- |
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// Destructor |
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//---------------------------------------------------------------------------------------------- |
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// |
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CHttpFilterConnHandler::~CHttpFilterConnHandler() |
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{ |
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delete iObserver; |
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} |
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|
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// --------------------------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::InstallFilterL |
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// Two-phased constructor. This function replaces NewL. |
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// --------------------------------------------------------------------------------------------- |
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// |
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CHttpFilterConnHandler* CHttpFilterConnHandler::InstallFilterL(TAny* aParams) |
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{ |
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__ASSERT_DEBUG(aParams != NULL, PanicHttpFiltersConnHandler()); |
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TConnParams* connParams = REINTERPRET_CAST(TConnParams*, aParams); |
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__ASSERT_DEBUG(connParams->iSession != NULL, PanicHttpFiltersConnHandler()); |
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__ASSERT_DEBUG(connParams->iConnCallback != NULL, PanicHttpFiltersConnHandler()); |
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|
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CHttpFilterConnHandler* filter = new (ELeave) CHttpFilterConnHandler( connParams->iSession, connParams->iConnCallback ); |
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CleanupStack::PushL(filter); |
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filter->ConstructL(); |
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CleanupStack::Pop(filter); |
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return filter; |
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} |
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|
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// --------------------------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::MHFLoad |
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// Called when the filter is being added to the session's filter queue. |
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// --------------------------------------------------------------------------------------------- |
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// |
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void CHttpFilterConnHandler::MHFLoad(RHTTPSession, THTTPFilterHandle) |
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{ |
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++iLoadCount; |
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} |
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|
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// ---------------------------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::MHFUnload |
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// Called when the filter is being removed from a session's filter queue. |
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// ---------------------------------------------------------------------------------------------- |
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// |
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void CHttpFilterConnHandler::MHFUnload(RHTTPSession /*aSession*/, THTTPFilterHandle /*aFilterHandler*/) |
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{ |
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__ASSERT_DEBUG(iLoadCount >= 0, PanicHttpFiltersConnHandler()); |
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if (--iLoadCount) |
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{ |
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return; |
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} |
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delete this; |
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} |
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|
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// ------------------------------------------------------------------------------------------------ |
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// CHttpFilterConnHandler::MHFRunL |
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// Process a transaction event. |
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// ------------------------------------------------------------------------------------------------ |
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// |
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void CHttpFilterConnHandler::MHFRunL(RHTTPTransaction aTransaction, |
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const THTTPEvent& aEvent) |
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{ |
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TInt state = 0; |
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TInt gprsState = 0; |
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TInt wcdmaState = 0; |
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TApBearerType bearerType; |
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216 |
|
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if (aEvent.iStatus == THTTPEvent::ESubmit) |
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{ |
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THTTPHdrVal isNewConn; |
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RHTTPConnectionInfo connInfo = iSession->ConnectionInfo(); |
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RStringPool strPool = aTransaction.Session().StringPool(); |
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TBool ret = connInfo.Property (strPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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HttpFilterCommonStringsExt::GetTable()), isNewConn); |
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224 |
|
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if ( LocalHostCheckL(aTransaction) && !( ret && isNewConn.Type() == THTTPHdrVal::KTIntVal ) ) |
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226 |
{ |
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return; |
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} |
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229 |
|
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THTTPHdrVal callback; |
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RHTTPTransactionPropertySet propSet = aTransaction.PropertySet(); |
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RStringF callbackStr = strPool.StringF( HttpFilterCommonStringsExt::EConnectionCallback, |
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HttpFilterCommonStringsExt::GetTable() ); |
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234 |
|
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MConnectionCallback* callbackPtr = NULL; |
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236 |
|
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// this is a transaction, already forwarded to download manager |
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if( propSet.Property( callbackStr, callback ) ) |
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239 |
{ |
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callbackPtr = REINTERPRET_CAST( MConnectionCallback*, callback.Int() ); |
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} |
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// make sure it is not null |
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callbackPtr = callbackPtr ? callbackPtr : iConnCallback; |
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244 |
|
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CreateConnectionL( &bearerType, callbackPtr ); |
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246 |
|
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iObserver->SetBearerTypeAndUid(bearerType); |
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// check if "No coverage" situation exists for the GPRS bearer |
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if (bearerType == EApBearerTypeGPRS) |
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250 |
{ |
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// we sent request, so change Observer state to EActiveReady |
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iObserver->GetObserverState(state); |
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if (state == EIdle) |
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{ |
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iObserver->GetStateL(KPSUidGprsStatusValue, gprsState); |
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iObserver->GetStateL(KPSUidWcdmaStatusValue, wcdmaState); |
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if (gprsState == EPSGprsSuspend && wcdmaState == EPSWcdmaSuspend) |
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258 |
{ |
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// user sent request from "No coverage" area, so all outstanding transactions will |
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// be canceled in this case and user will be notified. |
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callbackPtr->CoverageEvent(EErrNetUnreach); |
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} |
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else |
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{ |
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iObserver->SetObserverState(EActiveReady); |
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} |
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} |
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} |
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else if(bearerType == EApBearerTypeCDMA) |
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{ |
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// we sent request, so change Observer state to EActiveReady |
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iObserver->GetObserverState(state); |
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if (state == EIdle) |
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{ |
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iObserver->GetStateL(KPSUidWcdmaStatusValue, wcdmaState); |
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iObserver->GetStateL(KPSUidGprsStatusValue, gprsState); |
0
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if (wcdmaState == EPSWcdmaSuspend && gprsState == EPSGprsSuspend) //this should not meet all the time. |
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{ |
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// user sent request from "No coverage" area, so all outstanding transactions will |
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// be canceled in this case and user will be notified. |
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callbackPtr->CoverageEvent(EErrNetUnreach); |
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} |
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else |
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{ |
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iObserver->SetObserverState(EActiveReady); |
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} |
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} |
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} |
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} |
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} |
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291 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::MHFRunError |
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// Process an error that occured while processing the transaction. |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CHttpFilterConnHandler::MHFRunError(TInt , |
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RHTTPTransaction aTransaction, |
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const THTTPEvent& ) |
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{ |
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aTransaction.Cancel(); |
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return KErrNone; |
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} |
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304 |
|
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::MHFSessionRunL |
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// Process a session event. |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpFilterConnHandler::MHFSessionRunL(const THTTPSessionEvent& aEvent) |
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{ |
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TApBearerType bearerType; |
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|
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if (aEvent.iStatus == THTTPSessionEvent::EConnect) |
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{ |
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CreateConnectionL(&bearerType, iConnCallback ); |
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} |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::MHFSessionRunError |
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// Called when MHFRunL leaves from a session event. |
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// ----------------------------------------------------------------------------- |
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// |
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TInt CHttpFilterConnHandler::MHFSessionRunError(TInt aError, const THTTPSessionEvent& /*aEvent*/) |
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{ |
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return aError; |
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} |
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|
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::GetObserver |
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// Access method |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpFilterConnHandler::GetObserver(CHttpFilterConnHandlerObserver*& aObserver) |
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{ |
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aObserver = iObserver; |
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} |
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|
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|
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// ----------------------------------------------------------------------------- |
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// CHttpFilterConnHandler::CreateConnection |
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// Function to handle Submit events. |
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// Set proxy properties (EUseProxy and EProxyAddress) in order to get connected throught |
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// proxy when a new HTTP session will be in effect. The Proxy data will be taken from |
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// the CommDb if a new connection has been used. |
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// ----------------------------------------------------------------------------- |
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// |
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void CHttpFilterConnHandler::CreateConnectionL( |
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TApBearerType* bearerType, |
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MConnectionCallback* aCallbackPtr ) |
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{ |
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RStringPool stringPool = iSession->StringPool(); |
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RHTTPConnectionInfo connInfo = iSession->ConnectionInfo(); |
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|
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// pointer to RConnection typecasted as TInt |
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TInt connectionPtr = 0; |
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// handle to the socket server |
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TInt sockSvrHandle = 0; |
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// flag of a new connection |
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TBool newConn = ETrue; |
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|
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TInt error = aCallbackPtr->CreateConnection(&connectionPtr, &sockSvrHandle, &newConn, bearerType); |
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|
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// Possible causes to leave are: KErrCommsLineFail (NW_STAT_CONN_FAILED), KErrCancel (NW_STAT_CANCELLED) |
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if (error != KErrNone) |
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{ |
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User::LeaveIfError( error ); |
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} |
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|
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// Remove the properties if they were set before, before setting them again |
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connInfo.RemoveProperty(stringPool.StringF(HTTP::EHttpSocketConnection, |
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RHTTPSession::GetTable())); |
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connInfo.RemoveProperty(stringPool.StringF(HTTP::EHttpSocketServ, |
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RHTTPSession::GetTable())); |
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connInfo.RemoveProperty(stringPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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HttpFilterCommonStringsExt::GetTable())); |
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|
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|
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// Add the properties only if there is valid connection and socket server handler |
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if (connectionPtr != NULL && sockSvrHandle != 0) |
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{ |
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connInfo.SetPropertyL(stringPool.StringF(HTTP::EHttpSocketConnection, |
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RHTTPSession::GetTable()), THTTPHdrVal(connectionPtr)); |
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// Set socket server handle |
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connInfo.SetPropertyL(stringPool.StringF(HTTP::EHttpSocketServ, |
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RHTTPSession::GetTable()), THTTPHdrVal((TInt)sockSvrHandle)); |
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// Set aNewConn flag |
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connInfo.SetPropertyL(stringPool.StringF(HttpFilterCommonStringsExt::EHttpNewConnFlag, |
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HttpFilterCommonStringsExt::GetTable()), THTTPHdrVal((TBool)newConn)); |
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} |
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} |
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|
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// End of File |
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395 |