--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/cache/inc/HttpCacheUtil.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,304 @@
+/*
+* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Definition of CHttpCacheUtil
+*
+*/
+
+#ifndef CHTTPCACHEUTIL_H
+#define CHTTPCACHEUTIL_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <f32file.h>
+#include <http/rhttpheaders.h>
+
+// CONSTANTS
+enum TCacheLoadMethod
+    {
+    EMethodGet,
+    EMethodConnect,
+    EMethodDelete,
+    EMethodHead,
+    EMethodOptions,
+    EMethodPut,
+    EMethodPost,
+    EMethodTrace,
+    };
+
+const TInt KCacheVersionNumber = 1;
+//make 16 subdirectories named 0 through F for organizing cached files
+const TUint32 KCacheSubdirCount = 16;
+_LIT( KHttpCacheHeaderExt, ".h" );
+
+//#define __CACHELOG__
+
+// MACROS
+
+// DATA TYPES
+
+// FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+class RHTTPHeaders;
+class RHTTPTransaction;
+class MHTTPDataSupplier;
+class RStringPool;
+class CHttpCacheEntry;
+
+// CLASS DECLARATION
+
+/**
+*
+*  @lib
+*  @since 3.1
+*/
+class HttpCacheUtil
+    {
+    public:
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void SetEntryOnTransL( CHttpCacheEntry& aEntry, RHTTPTransaction& aTrans, RStringF& aCacheEntryStr );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static CHttpCacheEntry* EntryOnTransL( RHTTPTransaction& aTrans, RStringF& aCacheEntryStr );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC8* HeadersToBufferLC( RHTTPHeaders& aHttpHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void BufferToHeadersL( const TDesC8& aHeaderStr, RHTTPHeaders& aHttpHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC8* BodyToBufferL( MHTTPDataSupplier& aBodySupplier );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC8* MergeHeadersLC( const TDesC8& aCachedHeaderStr, RHTTPHeaders& aResponseHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC8* AddHeaderLC( const TDesC8& aName, const TDesC8& aValue, const TDesC8& aHeaders );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC8* HeaderFieldFromBufferLC( const TDesC8& aHeaders, const TDesC8& aKey );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TCacheLoadMethod MethodFromStr( RStringF aMethodStr, RStringPool aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool ProtectedEntry( RHTTPHeaders& aHttpHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool CacheTimeIsFresh( const RHTTPHeaders& aRequestHeaders, const RHTTPHeaders& aCachedHeaders,
+            RStringPool aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void AddValidationHeaders( const RHTTPHeaders aCachedHeaders, RHTTPHeaders& aRequestHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool OperatorCacheContent( const TDesC8& aOpDomain, const TDesC8& aUrl );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool VSSCacheContent( const TDesC8& aUrl, const HBufC8* aWhiteList );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool PragmaNoCache( RHTTPTransaction& aTrans );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void GetHeaderFileName( const TDesC& aBodyFileName, TDes& aHeaderFileName );
+        
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void AdjustExpirationTimeL( RHTTPHeaders& aResponseHeaders, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @param
+        * @return
+        */
+        static TBool CacheNeedsUpdateL( RHTTPHeaders& aResponseHeader, const TDesC8& aCachedHeaderStr, RStringPool& aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TBool IsCacheable( RHTTPTransaction& aTrans, TUint aMaxSize, TBool& aProtectedEntry );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TInt GetCacheControls( const RHTTPHeaders& aHeaders, TInt64* aMaxAge, TInt64* aMinFresh, TInt64* aMaxStale, TBool* aMustRevalidate,
+            TBool* aNoCache, TBool* aNoStore, RStringPool aStrP );
+
+    /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static HBufC* GenerateNameLC(const TDesC8& aUrl, const TDesC& aBaseDir );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void WriteLog( TInt aLogLevel, TPtrC aBuf, TInt aAny = 0xffff );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void WriteUrlToLog( TInt aLogLevel, const TDesC8& aUrl, TInt aAny = 0xffff );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static void WriteUrlToLog( TInt aLogLevel, const TDesC& aTxt, const TDesC8& aUrl, TInt aAny = 0xffff );
+
+    private:
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TInt64 Freshness( const RHTTPHeaders& aHeaders, TTime aResponseTime, RStringPool aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TInt64 Age( const RHTTPHeaders& aHeaders, TTime aRequestTime, TTime aResponseTime, RStringPool aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TInt GetCacheControlDirective( const RHTTPHeaders& aHeaders, TInt aIndex, RStringF& aDirective, TInt64* aDirectiveValue,
+            char** aExtraValue, RStringPool aStrP );
+
+        /**
+        *
+        * @since 3.1
+        * @param
+        * @return
+        */
+        static TInt ExtractCacheControlDirectiveValue( RStringPool aStrP, RStringF& aDirective,  TDesC8& aValue, TInt64* aDirectiveValue,
+            char** aExtraValue );
+    };
+
+#endif      // CHTTPCACHEUTIL_H
+
+// End of File