1 /*

     2 * Copyright (c) 2004-2009 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 the License "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: 

    15 *

    16 */

    17 

    18 

    19 #include "pkixCertChainHelper.h"

    20 #include <pkixcertchain.h>

    21 #include <pkixvalidationresult.h>

    22 #include <unifiedcertstore.h>

    23 

    24 _LIT(KPanicCat, "CPKIXCertChainHelper");

    25 

    26 CPKIXCertChainHelper* CPKIXCertChainHelper::NewL(RFs& aFs)

    27 	{

    28 	CPKIXCertChainHelper* self = new (ELeave) CPKIXCertChainHelper();

    29 	CleanupStack::PushL(self);

    30 	self->ConstructL(aFs);

    31 	CleanupStack::Pop(self);

    32 	return self;

    33 	}

    34 	

    35 CPKIXCertChainHelper::CPKIXCertChainHelper() :

    36 	CActive(EPriorityNormal)

    37 	{

    38 	CActiveScheduler::Add(this);

    39 	}

    40 

    41 void CPKIXCertChainHelper::ConstructL(RFs& aFs)

    42 	{

    43 	iCertStore = CUnifiedCertStore::NewL(aFs, EFalse);

    44 	}

    45 

    46 CPKIXCertChainHelper::~CPKIXCertChainHelper()

    47 	{

    48 	Cancel();

    49 	delete iCertStore;

    50 	}

    51 

    52 CUnifiedCertStore& CPKIXCertChainHelper::CertStore()

    53 	{

    54 	return *iCertStore;

    55 	}

    56 

    57 void CPKIXCertChainHelper::Validate(CPKIXCertChainBase& aCertChain,

    58 									CPKIXValidationResult& aValidationResult, 

    59 									const TTime& aValidationTime,

    60 									TRequestStatus& aStatus)

    61 	{

    62 	StartValidate(aCertChain, aValidationResult, aValidationTime, NULL,

    63 				  aStatus);

    64 	}

    65 	

    66 void CPKIXCertChainHelper::Validate(CPKIXCertChainBase& aCertChain,

    67 									CPKIXValidationResult& aValidationResult, 

    68 									const TTime& aValidationTime,

    69 									const CArrayPtr<HBufC>& aInitialPolicies, 

    70 									TRequestStatus& aStatus)

    71 	{

    72 	StartValidate(aCertChain, aValidationResult, aValidationTime, &aInitialPolicies,

    73 				  aStatus);

    74 	}

    75 

    76 void CPKIXCertChainHelper::CancelValidate()

    77 	{

    78 	if (iState == EInitializeCertStore ||

    79 		iState == EValidateChain)

    80 		{

    81 		Cancel();

    82 		}

    83 	}

    84 

    85 void CPKIXCertChainHelper::StartValidate(CPKIXCertChainBase& aCertChain,

    86 										 CPKIXValidationResult& aValidationResult, 

    87 										 const TTime& aValidationTime,

    88 										 const CArrayPtr<HBufC>* aInitialPolicies, 

    89 										 TRequestStatus& aStatus)

    90 	{

    91 	__ASSERT_ALWAYS(iState == EIdle, User::Panic(KPanicCat, 1));

    92 	iCertChain = &aCertChain;

    93 	iValidationResult = &aValidationResult;

    94 	iValidationTime = aValidationTime;

    95 	iInitialPolicies = aInitialPolicies;

    96 	iClientStatus = &aStatus;

    97 	aStatus = KRequestPending;

    98 	InitializeCertStore();

    99 	}

   100 

   101 void CPKIXCertChainHelper::InitializeCertStore()

   102 	{

   103 	iState = EInitializeCertStore;

   104 	if (iCertStoreInitialized)

   105 		{

   106 		TRequestStatus* status = &iStatus;

   107 		User::RequestComplete(status, KErrNone);

   108 		}

   109 	else

   110 		{

   111 		iCertStore->Initialize(iStatus);

   112 		}

   113 	SetActive();

   114 	}

   115 

   116 void CPKIXCertChainHelper::ValidateChainL()

   117 	{

   118 	iState = EValidateChain;

   119 	if (iInitialPolicies)

   120 		{

   121 		iCertChain->ValidateL(*iValidationResult,

   122 							  iValidationTime,

   123 							  *iInitialPolicies,

   124 							  iStatus);

   125 		}

   126 	else

   127 		{

   128 		iCertChain->ValidateL(*iValidationResult,

   129 							  iValidationTime,

   130 							  iStatus);

   131 		}

   132 	SetActive();

   133 	}

   134 

   135 void CPKIXCertChainHelper::RunL()

   136 	{

   137 	User::LeaveIfError(iStatus.Int());

   138 

   139 	switch (iState)

   140 		{

   141 		case EInitializeCertStore:

   142 			iCertStoreInitialized = ETrue;

   143 			ValidateChainL();

   144 			break;

   145 

   146 		case EValidateChain:

   147 			Complete(KErrNone);

   148 			break;

   149 

   150 		default:

   151 			User::Invariant();

   152 		}

   153 	}

   154 

   155 TInt CPKIXCertChainHelper::RunError(TInt aError)

   156 	{

   157 	Complete(aError);

   158 	return KErrNone;

   159 	}

   160 

   161 void CPKIXCertChainHelper::DoCancel()

   162 	{

   163 	TInt result = KErrCancel;

   164 	

   165 	switch (iState)

   166 		{

   167 		case EInitializeCertStore:

   168 			iCertStore->CancelInitialize();

   169 			break;

   170 

   171 		case EValidateChain:

   172 			if (iStatus == KRequestPending)

   173 				{

   174 				iCertChain->CancelValidate();

   175 				}

   176 			else

   177 				{

   178 				result = iStatus.Int();

   179 				}

   180 			break;

   181 

   182 		default:

   183 			// Do nothing

   184 			break;

   185 		}

   186 

   187 	Complete(result);

   188 	}

   189 

   190 void CPKIXCertChainHelper::Complete(TInt aError)

   191 	{

   192 	iState = EIdle;

   193 	iCertChain = NULL;

   194 	iValidationResult = NULL;

   195 	iInitialPolicies = NULL;

   196 	if (iClientStatus)

   197 		{

   198 		User::RequestComplete(iClientStatus, aError);

   199 		}

   200 	}