author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 06 Jul 2010 14:07:20 +0300 | |
changeset 12 | 608f67c22514 |
parent 0 | 09774dfdd46b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006-2007 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: ?Description |
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* |
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*/ |
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#include <ezgzip.h> |
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#include <bautils.h> |
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#include <f32file.h> |
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#include "irdataprovider.h" |
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#include "irdataproviderobserver.h" |
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#include "irdebug.h" |
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#include "irhttpdataprovider.h" |
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#include "irhttprequestdata.h" |
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#include "irsettings.h" |
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_LIT( KGzXmlFile, "iSdsResponse.xml.gz" ); |
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_LIT( KXmlFile, "iSdsResponse.xml" ); |
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::NewL(MIRDataProviderObserver& aObserver) |
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// Creates instance of CIRDataProvider. |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C CIRDataProvider *CIRDataProvider::NewL( |
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MIRDataProviderObserver &aObserver ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::NewL - Entering" ); |
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CIRDataProvider *self = NewLC( aObserver ); |
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CleanupStack::Pop(self); |
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IRLOG_DEBUG( "CIRDataProvider::NewL - Exiting" ); |
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return self; |
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} |
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::NewL(MIRDataProviderObserver& aObserver) |
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// Creates instance of CIRDataProvider. |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C CIRDataProvider *CIRDataProvider::NewL( |
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MIRDataProviderObserver &aObserver, const TDesC &aFileName ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::NewL(..., &aFileName) - Entering" ); |
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CIRDataProvider *self = NewLC( aObserver, aFileName ); |
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CleanupStack::Pop(self); |
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IRLOG_DEBUG( "CIRDataProvider::NewL(..., &aFileName) - Exiting." ); |
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return self; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::~CIRDataProvider() |
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// Destructs an instance of CIRDataProvider. |
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// --------------------------------------------------------------------------- |
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// |
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CIRDataProvider::~CIRDataProvider() // destruct - virtual, so no export |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::~CIRDataProvider() - Entering" ); |
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|
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if (iHttpDataProvider) |
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{ |
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// Cancel any active transactions |
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iHttpDataProvider->CancelTransaction(); |
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// Destroy the data provider object |
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} |
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delete iHttpDataProvider; |
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if( iIRSettings ) |
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{ |
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iIRSettings->Close(); |
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} |
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if (iDataProviderTimer) |
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{ |
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iDataProviderTimer->Cancel(); // Cancel the timer |
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} |
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delete iDataProviderTimer; // Destroy the timer object |
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if( iResponseHeaders ) |
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{ |
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delete iResponseHeaders; |
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} |
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iFile.Close(); |
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iFsSession.Close(); // Close the file server session |
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IRLOG_DEBUG( "CIRDataProvider::~CIRDataProvider() - Exiting" ); |
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} |
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// General functions exported ( These are the API`s exposed )( HTTP ) |
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::IRHttpIssueRequest(TDesC8& aUri) |
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// Used to issue an Http request |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C void CIRDataProvider::IRHttpIssueRequestL( |
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CIRHttpRequestData &aRequestObject ) |
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109 |
{ |
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IRHttpCancelRequest(); |
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IRLOG_DEBUG( "CIRDataProvider::IRHttpIssueRequestL - Entering" ); |
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IRRDEBUG2("CIRDATAPROVIDER::IRHTTPISSUEREQUESTL",KNullDesC); |
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CIRHttpResponseData* newResponseHeaders = new ( ELeave ) CIRHttpResponseData; |
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delete iResponseHeaders; |
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iResponseHeaders = newResponseHeaders; |
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116 |
|
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117 |
|
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// Create or replace the file used to store xml response from iSDS |
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User::LeaveIfError(iFile.Replace( iFsSession, iXmlGzFilePath, EFileWrite )); |
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iHttpDataProvider->CancelTransaction(); |
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121 |
|
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TInt err = iHttpDataProvider->IssueHttpRequestL( aRequestObject ); |
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// Cancel the timer if active |
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iDataProviderTimer->Cancel(); |
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// Start the timer for timeout |
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iDataProviderTimer->After( iTimeOut ); |
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if ( err == KErrCouldNotConnect ) |
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128 |
{ |
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// If error in IssueHttpRequest then close the open file |
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iFile.Close(); |
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iDataProviderTimer->Cancel(); |
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iDataProviderObserver.IRHttpGeneralError( err ); |
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// Cancel any possibly pending transactions |
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iHttpDataProvider->CancelTransaction(); |
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} |
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136 |
|
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IRLOG_DEBUG( "CIRDataProvider::IRHttpIssueRequestL - Exiting." ); |
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} |
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139 |
|
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140 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::IRHttpCancelRequest() |
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// Used to cancel a request |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C void CIRDataProvider::IRHttpCancelRequest() |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::IRHttpCancelRequest - Entering" ); |
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// Cancel the timer if active |
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iDataProviderTimer->Cancel(); |
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// Cancel any possibly pending transactions |
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iHttpDataProvider->CancelTransaction(); |
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// Close the file handle used to store the xml response |
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iFile.Close(); |
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IRLOG_DEBUG( "CIRDataProvider::IRHttpCancelRequest - Exiting." ); |
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} |
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157 |
|
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158 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::ReleaseResources() |
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// Used to release the resources held by the IRHttpDataProvider |
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// --------------------------------------------------------------------------- |
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// |
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EXPORT_C void CIRDataProvider::ReleaseResources() |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::ReleaseResources - Entering" ); |
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// Release the resources held by the IRHttpDataProvider |
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iHttpDataProvider->ReleaseResources(); |
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IRLOG_DEBUG( "CIRDataProvider::ReleaseResources - Exiting" ); |
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} |
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171 |
|
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172 |
|
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//These are the callback functions used by CIRHttpDataProvider to |
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//provide the CIRDataProvider with the data after processing the |
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//HTTP request. |
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176 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::HttpEventComplete() |
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// Used to Indicate to the observer that the request event has completed |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::HttpEventComplete() |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpEventComplete - Entering" ); |
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iFile.Close(); |
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iDataProviderTimer->Cancel(); |
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187 |
|
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// unzip the gz file |
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TRAP_IGNORE( UnzipFileL( iXmlFilePath ) ); |
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// delete the original gz file |
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BaflUtils::DeleteFile( iFsSession, iXmlGzFilePath ); |
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// Need to take a member to a local variable, as the IRHttpDataReceived may initiate |
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// an IRHttpIssueRequestL() call, causing the headers to be replaced with empty ones, and |
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// causing crashes. |
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CIRHttpResponseData* currentHeaders = iResponseHeaders; |
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iResponseHeaders = NULL; // prevents the destructor to delete in case something streange happens. |
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iDataProviderObserver.IRHttpDataReceived( iXmlFilePath,*currentHeaders ); |
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|
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delete currentHeaders; |
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IRLOG_DEBUG( "CIRDataProvider::HttpEventComplete - Exiting." ); |
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} |
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|
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|
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void CIRDataProvider::ExtractHeaderValue(const TDesC8& aHeaderData,const |
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TDesC8& aHeaderName,const TDesC8& aDelimeter,TDes8& aHolder) const |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::ExtractHeaderValue - Entering" ); |
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TInt position = aHeaderData.Find(aHeaderName); |
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if( position >= 0) |
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{ |
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TPtrC8 headerValue = aHeaderData.Mid(position); |
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TInt delimeterPosition = headerValue.Find(aDelimeter); |
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if( delimeterPosition != KErrNotFound ) |
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{ |
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delimeterPosition++; |
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TPtrC8 value = headerValue.Mid(delimeterPosition); |
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aHolder.Copy(value); |
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aHolder.TrimAll(); |
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} |
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} |
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IRLOG_DEBUG( "CIRDataProvider::ExtractHeaderValue - Exiting." ); |
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} |
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223 |
|
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224 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::HttpHeaderReceived( const TDesC8& aHeaderData ) |
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// Used by CIRHttpDataProvider to indicate that an HTTP header is received. |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::HttpHeaderReceived( const TDesC8& aHeaderData ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpHeaderReceived - Entering." ); |
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_LIT8(KDelim,":"); |
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_LIT8(KContentType,"Content-Type"); |
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ExtractHeaderValue(aHeaderData,KContentType,KDelim,iResponseHeaders-> |
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iContentType); |
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_LIT8(KMaxAge,"max-age"); |
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_LIT8(KDelimEqual,"="); |
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ExtractHeaderValue(aHeaderData,KMaxAge,KDelimEqual,iResponseHeaders-> |
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iMaxAge); |
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_LIT8(KContentLength,"Content-Length"); |
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ExtractHeaderValue(aHeaderData,KContentLength,KDelim,iResponseHeaders-> |
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iContentLength); |
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_LIT8(KExpires,"Expires"); |
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ExtractHeaderValue(aHeaderData,KExpires,KDelim,iResponseHeaders->iExpires); |
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IRLOG_DEBUG( "CIRDataProvider::HttpHeaderReceived - Exiting." ); |
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} |
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|
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249 |
|
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void CIRDataProvider::HttpDateHeaderReceived(const TDesC8 &aHeader, |
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const TTime& aTime ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpDateHeaderReceived - Entering." ); |
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_LIT8(KDate,"Date"); |
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_LIT8(KLastModified,"Last-Modified"); |
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TInt position = aHeader.Find(KDate); |
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if( position != KErrNotFound ) |
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{ |
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iResponseHeaders->iDate = aTime; |
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//find the difference between device time and response time |
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//and storing the offset |
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SetOffsetSeconds( aTime ); |
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return ; |
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} |
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position = aHeader.Find(KLastModified); |
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if( position != KErrNotFound ) |
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{ |
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iResponseHeaders->iLastModified = aTime; |
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} |
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IRLOG_DEBUG( "CIRDataProvider::HttpDateHeaderReceived - Exiting." ); |
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} |
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272 |
|
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273 |
|
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274 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::HttpBodyReceived( const TDesC8& aBodyData ) |
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// Used by CIRHttpDataProvider to indicate that an HTTP response body |
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// is received. |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::HttpBodyReceived( const TDesC8 &aBodyData ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpBodyReceived - Entering" ); |
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TInt FileWritePos = 0; |
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iFile.Seek( ESeekEnd, FileWritePos ); |
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iFile.Write( FileWritePos, aBodyData ); |
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IRLOG_DEBUG( "CIRDataProvider::HttpBodyReceived - Exiting." ); |
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} |
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289 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::HttpTransactionError(TInt aErrCode) |
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// Used by CIRHttpDataProvider to indicate that a HTTP Transaction error |
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// has occured. |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::HttpTransactionError( TInt aErrCode ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpTransactionError - Entering" ); |
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iFile.Close(); |
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iDataProviderTimer->Cancel(); |
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iDataProviderObserver.IRHttpGeneralError( aErrCode ); |
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// Cancel any possibly pending transactions |
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iHttpDataProvider->CancelTransaction(); |
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IRLOG_DEBUG( "CIRDataProvider::HttpTransactionError - Exiting." ); |
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} |
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306 |
|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::HttpResponseCodeRecieved(TInt aResponseCode) |
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// Used by CIRHttpDataProvider to indicate to the iSDS Client that a |
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// 304 Not Changed response received |
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// Note: Implemented in version 0.2 |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::HttpResponseCodeRecieved( TInt aResponseCode ) |
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315 |
{ |
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IRLOG_DEBUG( "CIRDataProvider::HttpResponseCodeRecieved - Entering" ); |
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iDataProviderObserver.IRHttpResponseCodeReceived( aResponseCode, *iResponseHeaders ); |
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IRLOG_DEBUG( "CIRDataProvider::HttpResponseCodeRecieved- Exiting" ); |
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} |
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// constructor support |
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// don't export these, because used only by functions in this DLL |
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::CIRDataProvider(MIRDataProviderObserver& aObserver): |
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// iDataProviderObserver(aObserver) |
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// Default Constructor |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::TimerExpired() |
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{ |
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IRLOG_INFO( "CIRDataProvider::TimerExpired - Entering" ); |
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IRHttpCancelRequest(); |
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HttpTransactionError( KDataProviderTimeout ); |
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IRLOG_INFO( "CIRDataProvider::TimerExpired - Exiting" ); |
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} |
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|
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|
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|
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CIRDataProvider::CIRDataProvider( MIRDataProviderObserver &aObserver ): |
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iDataProviderObserver( aObserver ) // first-phase C++ constructor |
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{ |
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IRLOG_INFO( "CIRDataProvider::CIRDataProvider" ); |
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// Definition not required |
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} |
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|
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// --------------------------------------------------------------------------- |
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// void CIRDataProvider::ConstructL() |
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// 2nd Phase construction |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::ConstructL() // second-phase constructor |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::ConstructL - Entering" ); |
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ConstructL( KGzXmlFile ); |
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iHttpDataProvider->iSetNonUAProfUserAgent = EFalse; |
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IRLOG_DEBUG( "CIRDataProvider::ConstructL - Exiting" ); |
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} |
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|
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// --------------------------------------------------------------------------- |
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// void CIRDataProvider::ConstructL(TDesC& aFilePath) |
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// 2nd Phase construction |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::ConstructL( const TDesC &aFileName ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::ConstructL(const TDesC &aFileName) - Entering" ); |
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iHttpDataProvider = CIRHttpDataProvider::NewL( *this ); |
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iDataProviderTimer = CIRDataProviderTimer::NewL( EPriorityHigh, *this ); |
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User::LeaveIfError(iFsSession.Connect()); |
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iIRSettings = CIRSettings::OpenL(); |
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iXmlGzFilePath = iIRSettings->PrivatePath(); |
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iXmlFilePath = iXmlGzFilePath; |
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iXmlGzFilePath.Append( aFileName ); |
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iXmlFilePath.Append( KXmlFile ); |
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iTimeOut = iIRSettings->GetTimeOut(); |
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iHttpDataProvider->iSetNonUAProfUserAgent = ETrue; |
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IRLOG_DEBUG( "CIRDataProvider::ConstructL(const TDesC &aFileName) - Exiting." ); |
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} |
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|
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|
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|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::NewLC(MIRDataProviderObserver& aObserver) |
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// Creates instance of CIRDataProvider. |
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// --------------------------------------------------------------------------- |
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// |
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CIRDataProvider *CIRDataProvider::NewLC( MIRDataProviderObserver &aObserver ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::NewLC - Entering." ); |
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CIRDataProvider *self = new( ELeave )CIRDataProvider( aObserver ); |
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CleanupStack::PushL( self ); |
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self->ConstructL(); |
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IRLOG_DEBUG( "CIRDataProvider::NewLC - Exiting." ); |
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return self; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::NewLC(MIRDataProviderObserver& aObserver) |
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// Creates instance of CIRDataProvider. |
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// --------------------------------------------------------------------------- |
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// |
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CIRDataProvider *CIRDataProvider::NewLC( MIRDataProviderObserver &aObserver, |
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const TDesC &aFileName ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::NewLC - Entering." ); |
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CIRDataProvider *self = new( ELeave )CIRDataProvider( aObserver ); |
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CleanupStack::PushL( self ); |
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self->ConstructL( aFileName ); |
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IRLOG_DEBUG( "CIRDataProvider::NewLC - Exiting." ); |
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return self; |
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} |
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|
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EXPORT_C CIRHttpDataProvider* CIRDataProvider::GetHttpDataProvider() |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::GetHttpDataProvider" ); |
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return iHttpDataProvider; |
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} |
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|
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::SetOffsetSeconds( const TTime& aTime ) |
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// Stores the offset between device time and response header in settings |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::SetOffsetSeconds( const TTime& aTime ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::SetOffsetSeconds - Entering" ); |
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TTime currenttime; |
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//calculates the current time |
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currenttime.UniversalTime(); |
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//finds offset from isds response |
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TTimeIntervalSeconds offsetseconds; |
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//Find offset from isds response |
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TInt err = currenttime.SecondsFrom(aTime,offsetseconds); |
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if( err ) |
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{ |
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//if error offsetseconds is set to zero |
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offsetseconds = 0; |
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} |
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//storing the offset value in setting |
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TRAP_IGNORE( iIRSettings->SetTimeCorrectionL(offsetseconds.Int()) ) |
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IRLOG_DEBUG( "CIRDataProvider::SetOffsetSeconds - Exiting." ); |
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} |
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|
12
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// --------------------------------------------------------------------------- |
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// CIRDataProvider::UnzipFileL |
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// --------------------------------------------------------------------------- |
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// |
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void CIRDataProvider::UnzipFileL( const TDesC& aOutputFile ) |
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{ |
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IRLOG_DEBUG( "CIRDataProvider::UnzipFileL - Enter." ); |
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RFile outputFile; |
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CleanupClosePushL( outputFile ); |
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User::LeaveIfError( outputFile.Replace( iFsSession, aOutputFile, |
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EFileStream | EFileWrite | EFileShareExclusive ) ); |
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CEZGZipToFile* gZip = |
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CEZGZipToFile::NewLC( iFsSession, iXmlGzFilePath, outputFile ); |
0
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while ( gZip->InflateL() ) |
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{ |
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// unzip the gz file, quit when finish |
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} |
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CleanupStack::PopAndDestroy( gZip ); |
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CleanupStack::PopAndDestroy( &outputFile ); |
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IRLOG_DEBUG( "CIRDataProvider::UnzipFileL - Exit." ); |
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} |