policymanagement/policyengine/policyengineserver/src/SettingEnforcementManager.cpp
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     1 /*
       
     2 * Copyright (c) 2002-2004 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: Implementation of policymanagement components
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 
       
    21 #include "SettingEnforcementManager.h"
       
    22 #include "PolicyEngineServer.h"
       
    23 #include "EMailEnforcement.h"
       
    24 #include "CommsDatEnforcement.h"
       
    25 #include "IMEnforcement.h"
       
    26 #include "datasyncmlenforcement.h"
       
    27 #include "ElementBase.h"
       
    28 #include "PolicyStorage.h"
       
    29 #include "elements.h"
       
    30 #include "DataTypes.h"
       
    31 
       
    32 #include "XACMLconstants.h"
       
    33 #include "ErrorCodes.h"
       
    34 #include "debug.h"
       
    35 
       
    36 // EXTERNAL DATA STRUCTURES
       
    37 // EXTERNAL FUNCTION PROTOTYPES
       
    38 // CONSTANTS
       
    39 // MACROS
       
    40 // LOCAL CONSTANTS AND MACROS
       
    41 // MODULE DATA STRUCTURES
       
    42 // LOCAL FUNCTION PROTOTYPES
       
    43 
       
    44 
       
    45 // ==================== LOCAL FUNCTIONS ====================
       
    46 
       
    47 // ================= MEMBER FUNCTIONS =======================
       
    48 
       
    49 // -----------------------------------------------------------------------------
       
    50 // CSettingEnforcementManager::CSettingEnforcementManager()
       
    51 // -----------------------------------------------------------------------------
       
    52 //
       
    53 
       
    54 CSettingEnforcementManager::CSettingEnforcementManager()
       
    55 	: CActive( EPriorityLow)
       
    56 {
       
    57 }
       
    58 
       
    59 // -----------------------------------------------------------------------------
       
    60 // CSettingEnforcementManager::~CSettingEnforcementManager()
       
    61 // -----------------------------------------------------------------------------
       
    62 //
       
    63 CSettingEnforcementManager::~CSettingEnforcementManager()
       
    64 {
       
    65 	iEnforcementElements.ResetAndDestroy();
       
    66 	iEnforcementElements.Close();
       
    67 
       
    68 	iValidEditorsForSetting.ResetAndDestroy();
       
    69 	iValidEditorsForSetting.Close();
       
    70 	
       
    71 	delete iActiveEnforcementBase;
       
    72 }
       
    73 
       
    74 // -----------------------------------------------------------------------------
       
    75 // CSettingEnforcementManager::NewL()
       
    76 // -----------------------------------------------------------------------------
       
    77 //
       
    78 CSettingEnforcementManager* CSettingEnforcementManager::NewL()
       
    79 {
       
    80 	return new (ELeave) CSettingEnforcementManager();
       
    81 }
       
    82 
       
    83 // -----------------------------------------------------------------------------
       
    84 // CSettingEnforcementManager::StartEnforcementSessionL()
       
    85 // -----------------------------------------------------------------------------
       
    86 //		
       
    87 void CSettingEnforcementManager::StartEnforcementSessionL( TRequestStatus& aRequestStatus, const TCertInfo& aCertInfo)
       
    88 {
       
    89 	//reset context
       
    90 	iEnforcementElements.ResetAndDestroy();
       
    91 	iValidEditorsForSetting.ResetAndDestroy();
       
    92 
       
    93 	iExternalRequestStatus = &aRequestStatus;
       
    94 	aRequestStatus = KRequestPending;
       
    95 	
       
    96 	iCertInfo = aCertInfo;
       
    97 	
       
    98 	//Add object to active scheduler
       
    99 	if ( !IsAdded())
       
   100 	{
       
   101 		CActiveScheduler::Add( this);
       
   102 	}
       
   103 }
       
   104 
       
   105 // -----------------------------------------------------------------------------
       
   106 // CSettingEnforcementManager::AddModifiedElementL()
       
   107 // -----------------------------------------------------------------------------
       
   108 //
       
   109 void CSettingEnforcementManager::AddModifiedElementL( const CElementBase* aElement)
       
   110 {
       
   111 	using namespace PolicyLanguage::Constants;
       
   112 
       
   113 	__ASSERT_ALWAYS( aElement, User::Panic( Panics::SettingEnforcementManagerPanic, KErrAbort));
       
   114 
       
   115 	HBufC8 * elementName = aElement->ExternalId();
       
   116 	
       
   117 	//If element has external id
       
   118 	if ( elementName)
       
   119 	{
       
   120 		//and if element is enforcement element
       
   121 		if ( CEmailEnforcement::ValidEnforcementElement( *elementName) ||
       
   122 			 CCommsDatEnforcement::ValidEnforcementElement( *elementName) ||
       
   123 			 CDataSyncMLEnforcement::ValidEnforcementElement( *elementName) ||
       
   124 			 CImEnforcement::ValidEnforcementElement(*elementName))	
       
   125 		{
       
   126 			iEnforcementElements.AppendL( elementName->Alloc());
       
   127 		}
       
   128 	}
       
   129 }
       
   130 
       
   131 // -----------------------------------------------------------------------------
       
   132 // CSettingEnforcementManager::ExecuteEnforcementSessionL()
       
   133 // -----------------------------------------------------------------------------
       
   134 //
       
   135 void CSettingEnforcementManager::ExecuteEnforcementSessionL()
       
   136 {
       
   137 	//Reset operation state
       
   138 	iOperationCounter = 0;
       
   139 	iOperationState = 0;
       
   140 
       
   141 	//Start scheduling
       
   142 	SetActive();
       
   143 	TRequestStatus * status = &iStatus;
       
   144 	User::RequestComplete( status, KErrNone);
       
   145 }
       
   146 
       
   147 // -----------------------------------------------------------------------------
       
   148 // CSettingEnforcementManager::CommitChanges()
       
   149 // -----------------------------------------------------------------------------
       
   150 //
       
   151 void CSettingEnforcementManager::CommitChanges()
       
   152 {
       
   153 	//Commit changes....
       
   154 }
       
   155 
       
   156 // -----------------------------------------------------------------------------
       
   157 // CSettingEnforcementManager::EndEnforcementSessionL()
       
   158 // -----------------------------------------------------------------------------
       
   159 //
       
   160 void CSettingEnforcementManager::EndEnforcementSession( TBool aFlushSettings)
       
   161 {
       
   162 	//finish active enforcement base
       
   163 	if ( iActiveEnforcementBase)
       
   164 	{
       
   165 		iActiveEnforcementBase->FinishEnforcementL( aFlushSettings);
       
   166 		delete iActiveEnforcementBase;
       
   167 		iActiveEnforcementBase = 0;
       
   168 	}
       
   169 
       
   170 	//destroy editor list (this must be valid until FinishEnforcementL is called for enforcementbase)
       
   171 	iValidEditorsForSetting.ResetAndDestroy();
       
   172 }
       
   173 	
       
   174 // -----------------------------------------------------------------------------
       
   175 // CSettingEnforcementManager::RunL()
       
   176 // -----------------------------------------------------------------------------
       
   177 //
       
   178 void CSettingEnforcementManager::RunL()
       
   179 {
       
   180 	using namespace PolicyLanguage::Constants;
       
   181 
       
   182 	if ( iStatus.Int() != KErrNone)
       
   183 	{
       
   184 		User::RequestComplete( iExternalRequestStatus, iStatus.Int());
       
   185 		return;
       
   186 	}
       
   187 
       
   188 
       
   189 	if ( iOperationCounter < iEnforcementElements.Count())
       
   190 	{
       
   191 		TBool requested = ETrue;
       
   192 		TInt requestStatus = KErrNone;
       
   193 
       
   194 		switch ( iOperationState )
       
   195 		{
       
   196 			case 0:
       
   197 			if ( iOperationState == 0)
       
   198 			{
       
   199 				//reset arrays and get new editors for setting
       
   200 				iValidEditorsForSetting.ResetAndDestroy();
       
   201 
       
   202 				iActivelementName = iEnforcementElements[ iOperationCounter];
       
   203 				TUint32 elementId = CPolicyStorage::PolicyStorage()->MapRealIdL( *iActivelementName, EFalse );
       
   204 			
       
   205 				if ( elementId != 0)
       
   206 				{
       
   207 					ResolveValidEditorsForSettingL( elementId);
       
   208 				}
       
   209 			
       
   210 				requested = EFalse;
       
   211 				iOperationState++;
       
   212 	
       
   213 				//select active enforment base
       
   214 				__ASSERT_ALWAYS( iActivelementName, User::Panic( Panics::SettingEnforcementManagerPanic, KErrAbort));
       
   215 				SetActiveEnforcementBaseL( *iActivelementName);
       
   216 			}
       
   217 			break;
       
   218 			case 1:
       
   219 			if ( iOperationState == 1)
       
   220 			{
       
   221 				if ( iActiveEnforcementBase->InitReady())
       
   222 				{
       
   223 					requested = EFalse;
       
   224 					iOperationState++;
       
   225 				}
       
   226 				else
       
   227 				{
       
   228 					iActiveEnforcementBase->InitEnforcementL( iStatus);
       
   229 				}
       
   230 			}
       
   231 			break;
       
   232 			case 2:
       
   233 			if ( iOperationState == 2)
       
   234 			{
       
   235 				if ( iActiveEnforcementBase->EnforcementReady())
       
   236 				{
       
   237 					//when enforcement is ready...
       
   238 					requested = EFalse;
       
   239 					iOperationState = 0;
       
   240 					iOperationCounter++;
       
   241 				}
       
   242 				else
       
   243 				{
       
   244 					//and the next rounds are dedicated for doing enforcement until enforcement is ready
       
   245 					iActiveEnforcementBase->DoEnforcementL( iStatus);
       
   246 				}
       
   247 			}
       
   248 			break;
       
   249 		}
       
   250 
       
   251 		//Continue scheduling...
       
   252 		SetActive();
       
   253 		if ( !requested )
       
   254 		{
       
   255 			TRequestStatus * status = &iStatus;
       
   256 			User::RequestComplete( status, requestStatus);
       
   257 		}
       
   258 	}
       
   259 	else
       
   260 	{
       
   261 		User::RequestComplete( iExternalRequestStatus, KErrNone);
       
   262 	}
       
   263 }
       
   264 
       
   265 // -----------------------------------------------------------------------------
       
   266 // CSettingEnforcementManager::RunError()
       
   267 // -----------------------------------------------------------------------------
       
   268 //
       
   269 TInt CSettingEnforcementManager::RunError( TInt aError)
       
   270 {
       
   271 	RDEBUG_2("	**** ERROR, CSettingEnforcementManager::RunError( %d )", aError );
       
   272 	//Complete external request with error value
       
   273 	User::RequestComplete( iExternalRequestStatus, aError);
       
   274 	
       
   275 	return KErrNone;
       
   276 }
       
   277 
       
   278 // -----------------------------------------------------------------------------
       
   279 // CSettingEnforcementManager::DoCancel()
       
   280 // -----------------------------------------------------------------------------
       
   281 //
       
   282 void CSettingEnforcementManager::DoCancel()
       
   283 {
       
   284 	RunError( KErrAbort);
       
   285 }
       
   286 
       
   287 
       
   288 // -----------------------------------------------------------------------------
       
   289 // CSettingEnforcementManager::SetActiveEnforcementBaseL()
       
   290 // -----------------------------------------------------------------------------
       
   291 //
       
   292 
       
   293 void CSettingEnforcementManager::SetActiveEnforcementBaseL(  const TDesC8& aEnforcementId)
       
   294 {	
       
   295 	//delete old enforcement base
       
   296 	delete iActiveEnforcementBase;
       
   297 	iActiveEnforcementBase = 0;
       
   298 
       
   299 	//and if element is enforcement element
       
   300 	iActiveEnforcementBase = CEmailEnforcement::NewL( aEnforcementId);
       
   301 
       
   302 		
       
   303 	if ( !iActiveEnforcementBase)
       
   304 	{
       
   305 		iActiveEnforcementBase = CCommsDatEnforcement::NewL( aEnforcementId);
       
   306 	}
       
   307 
       
   308 	if ( !iActiveEnforcementBase)
       
   309 	{
       
   310 		iActiveEnforcementBase = CDataSyncMLEnforcement::NewL( aEnforcementId);
       
   311 	}
       
   312 
       
   313 	if ( !iActiveEnforcementBase)
       
   314 	{
       
   315 		iActiveEnforcementBase = CImEnforcement::NewL( aEnforcementId);
       
   316 	}
       
   317 	
       
   318 	if ( iActiveEnforcementBase )
       
   319 	{
       
   320 		iActiveEnforcementBase->AccessRightList( iValidEditorsForSetting);
       
   321 		iActiveEnforcementBase->SetSessionCertificate( iCertInfo );
       
   322 	}
       
   323 }
       
   324 
       
   325 
       
   326 
       
   327 
       
   328 // -----------------------------------------------------------------------------
       
   329 // CSettingEnforcementManager::ResolveValidEditorsForSettingL()
       
   330 // -----------------------------------------------------------------------------
       
   331 //
       
   332 void CSettingEnforcementManager::ResolveValidEditorsForSettingL( TUint32 iElementId)
       
   333 {
       
   334 	using namespace PolicyLanguage::NativeLanguage::Functions;
       
   335 	using namespace PolicyLanguage::Constants;
       
   336 
       
   337 	//get and reserve element
       
   338 	CElementBase * policyElement = CPolicyStorage::PolicyStorage()->GetEditableElementL( iElementId);
       
   339 	
       
   340 	if ( policyElement == NULL)
       
   341 	{
       
   342 		return;	
       
   343 	}
       
   344 	
       
   345 	if ( policyElement->ElementType() != EPolicy)
       
   346 	{
       
   347 		return;
       
   348 	}
       
   349 	
       
   350 	TElementReserver policyReserver( policyElement);
       
   351 	CPolicyStorage::PolicyStorage()->CheckElementL( policyElement);
       
   352 
       
   353 
       
   354 	//Find Subjectmatch element, they determines who has right to modifie settings	
       
   355 	RElementArray rules;	
       
   356 	policyElement->FindAttributesL( ERule, rules);
       
   357 	CleanupClosePushL( rules);
       
   358 	
       
   359 	for ( TInt j(0); j < rules.Count(); j++)
       
   360 	{
       
   361 		CRule* rule = (CRule*)rules[ j];
       
   362 		TElementReserver ruleReserver( rule);
       
   363 		CPolicyStorage::PolicyStorage()->CheckElementL( rule);
       
   364 		
       
   365 		if ( rule->Effect() == EPermit)
       
   366 		{
       
   367 			//Find Subjectmatch element, they determines who has right to modifie settings	
       
   368 			RElementArray attributes;	
       
   369 			rule->FindAttributesL( ESubjectMatch, attributes);
       
   370 			CleanupClosePushL( attributes);
       
   371 	
       
   372 
       
   373 			for ( TInt i(0); i < attributes.Count(); i++)
       
   374 			{
       
   375 				CElementBase * element = attributes[i];
       
   376 	
       
   377 				if ( element->ElementType() == ESubjectMatch )
       
   378 				{
       
   379 					TElementReserver elementReserver( attributes[i]);
       
   380 					CPolicyStorage::PolicyStorage()->CheckElementL( element);
       
   381 		
       
   382 					CMatchObject* subjectMatch = (CMatchObject*)element;
       
   383 																
       
   384 					//Search TrustedSubjectMatch attributes													
       
   385 					if ( *subjectMatch->MatchId() == TrustedSubjectMatch )
       
   386 					{
       
   387 						//and add valid editors (Trusted subjects) to valid editors list...
       
   388 						if ( subjectMatch->AttributeDesignator()->GetAttributeid() == PolicyEngineXACML::KTrustedSubject )
       
   389 						{
       
   390 							iValidEditorsForSetting.AppendL( subjectMatch->AttributeValue()->Data()->Value().AllocL());
       
   391 						}
       
   392 					}		
       
   393 				
       
   394 					elementReserver.Release();
       
   395 				}
       
   396 			}
       
   397 			
       
   398 			CleanupStack::PopAndDestroy( &attributes);
       
   399 		}
       
   400 		
       
   401 		ruleReserver.Release();			
       
   402 	}
       
   403 
       
   404 	policyReserver.Release();
       
   405 	CleanupStack::PopAndDestroy( &rules);
       
   406 	
       
   407 }
       
   408 
       
   409 
       
   410 
       
   411 
       
   412 // -----------------------------------------------------------------------------
       
   413 // CSettingEnforcementManager::SessionCertificate()
       
   414 // -----------------------------------------------------------------------------
       
   415 //
       
   416 TCertInfo& CSettingEnforcementManager::SessionCertificate()
       
   417 {
       
   418 	return iCertInfo;
       
   419 }
       
   420 
       
   421 // -----------------------------------------------------------------------------
       
   422 // CEnforcementBase::SetSessionCertificate()
       
   423 // -----------------------------------------------------------------------------
       
   424 //
       
   425 void CEnforcementBase::SetSessionCertificate( TCertInfo& aCertInfo)
       
   426 {
       
   427 	iCertInfo = &aCertInfo;
       
   428 }
       
   429 
       
   430 
       
   431 // -----------------------------------------------------------------------------
       
   432 // CEnforcementBase::SetSessionCertificate()
       
   433 // -----------------------------------------------------------------------------
       
   434 //
       
   435 TCertInfo& CEnforcementBase::SessionCertificate()
       
   436 {
       
   437 	return *iCertInfo;
       
   438 }
       
   439 
       
   440 
       
   441 
       
   442 
       
   443 
       
   444 
       
   445