--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/applayerpluginsandutils/httpprotocolplugins/filters/Authentication.h	Tue Feb 02 01:09:52 2010 +0200
@@ -0,0 +1,179 @@
+// Copyright (c) 2001-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "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:
+//
+
+#ifndef __AUTHENTICATION_H__
+#define __AUTHENTICATION_H__
+
+
+/** Authentication Filter provides a response the http server challenge
+    WWW-Authenticate: challenge realm.
+
+	challenge currently supported is: "basic"
+*/
+
+// System includes
+#include <http/cauthenticationfilterinterface.h>
+#include <http/mhttpfilter.h>
+#include "timerlogger.h"
+
+// Forward declarations
+class MHTTPAuthenticationCallback;
+class CMD5;
+
+//##ModelId=3A3A17590238
+class CAuthenticationFilter : public CAuthenticationFilterInterface, public MHTTPFilter
+	{
+public:
+	static CAuthenticationFilterInterface* InstallFilterL(TAny* aAuthenticationParams);	
+	// Destructor
+	//##ModelId=3B1E68290061
+	~CAuthenticationFilter();
+
+public:	// Methods from MHTTPFilterBase
+
+	// @see MHTTPFilterBase::MHFRunL
+	//##ModelId=3B1E682801E6
+	virtual void MHFRunL(RHTTPTransaction aTransaction, const THTTPEvent& aEvent);
+
+	// @see MHTTPFilterBase::MHFSessionRunL
+	virtual void MHFSessionRunL(const THTTPSessionEvent& aEvent);
+
+	// @see MHTTPFilterBase::MHFRunError
+	//##ModelId=3B1E682702AD
+	virtual TInt MHFRunError(TInt aError, RHTTPTransaction aTransaction,
+							 const THTTPEvent& aEvent);
+
+	// @see MHTTPFilterBase::MHFSessionRunError
+	virtual TInt MHFSessionRunError(TInt aError, const THTTPSessionEvent& aEvent);
+
+public:	// Methods from MHTTPFilter
+
+	// @see MHTTPFilter::MHFUnload
+	//##ModelId=3B1E68270072
+	virtual void MHFUnload(RHTTPSession aSession, THTTPFilterHandle aHandle);
+
+	// @see MHTTPFilter::MHFLoad
+	//##ModelId=3B1E68260229
+	virtual void MHFLoad(RHTTPSession aSession, THTTPFilterHandle aHandle);
+
+ private:
+	// Constructor
+	//##ModelId=3B1E68260107
+	CAuthenticationFilter(MHTTPAuthenticationCallback* aCallback);
+	// For 2 phase construction. Also installs the filter.
+	//##ModelId=3B1E682503D6
+	void ConstructL(RHTTPSession aSession);
+	
+	// Function to handle Submit events. We need to remove any
+	// username and password from the URI.
+	//##ModelId=3B1E6825006F
+	void SubmitL(RHTTPTransaction aTransaction);
+
+	// Provides a central point for all Tranaction handling
+	//##ModelId=3B1E6824033F
+	void HandleTransactionL(RHTTPTransaction aTransaction);
+
+	// Search list for matching credentials
+	//##ModelId=3B1E68240186
+	TInt FindCredentials(const RString& aRealm, TInt aAuthType, 
+						 const TUriC8& aURI) const;
+
+	// Searches list for credentials that can be used with this URI
+	// without knowing the realm.
+	//##ModelId=3BA6004600A7
+	TInt FindCredentialsForURI(const TUriC8& aURI) const;
+
+	// Finds the header part with the stringest authentication that
+	// we support.
+	//##ModelId=3BA600460007
+	TInt FindHeaderPartToUseL(RHTTPTransaction aTransaction) const;
+
+	// Set Basic Auth
+	//##ModelId=3B1E6823030B
+	void EncodeBasicAuthL(const RString& aUsername,const RString& aPW,
+						  RHTTPTransaction& aTransaction);
+	
+	// Set Digest Auth
+	//##ModelId=3B1E682300BC
+	void EncodeDigestAuthL(const RString& aUsername,const RString& aPW,
+						   RHTTPTransaction& aTransaction, TInt headerPart,
+						   const THTTPHdrVal& aRequestUri);
+
+	/**Digest helper functions
+		See RFC2617 for details of what these mean */
+	//@{
+	// Calculate H(A1). See section 3.2.2.2
+	//##ModelId=3BA600450237
+	TInt HA1L(const RString& aUsername,const RString& aPW,
+			 const RString& aRealm, TDes8& aResult);
+
+	
+	// Calculate H(A2). See section 3.2.2.3
+	//##ModelId=3BA600450178
+	TInt HA2L(const RStringF& aMethod, const RString& aRequestUri, TDes8& aResult);
+
+	// Calculate a hash and in the form of a 32 character hex result.
+	//##ModelId=3BA6004500C4
+	void Hash(const TDesC8& aMessage, TDes8& aHash);
+
+	//##ModelId=3BA600450056
+	void GenerateCNonce(TDes8& aNonce);
+
+	//##ModelId=3BA6004403A8
+	TBool FindAuth(const TDesC8& aQop) const;
+	//@}
+	
+   	__DECLARE_PERFORMANCE_LOG
+	// Container for holding an internal storage of credentials
+	class TCredentials
+		{
+	public:
+		RStringToken iRealm;	//< Realm used - there may be multiple for each host
+		RStringToken iUser;		//< username
+		RStringToken iPassword; //< password
+		RStringTokenF iURI;		//< uri
+		TInt iAuthType;			//< basic or digest or ??
+		TInt iID;				//< to associate credentials with transactions
+		};
+
+	// callback for getting username/pw from external source
+	//##ModelId=3B1E6823008A
+	MHTTPAuthenticationCallback*       iCallback;
+	// internal list of valid credentials
+	//##ModelId=3B1E6823004E
+	RArray<TCredentials>              iCredentials;
+	// local copy
+	//##ModelId=3B1E68230012
+	RStringPool                        iStringPool;
+	
+	// A reference count to make sure we delete at the right time.
+	//##ModelId=3B1E682203D4
+	TInt iLoadCount;
+
+	// The next free credential ID
+	//##ModelId=3BA600440394
+	TInt iNextID;
+
+	// The digest calculator
+	//##ModelId=3BA600440380
+	CMD5* iMD5Calculator;
+
+	// A seed for random numbers, used for client nonces.
+	//##ModelId=3BA600440362
+	TInt64 iSeed;
+	};
+
+
+#endif //__AUTHENTICATION_H_