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1 // Copyright (c) 1998-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #include "UE_STD.H" |
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17 |
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18 #include <pbe.h> |
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19 |
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20 #ifndef __TOOLS2__ |
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21 #include "pbencryptor.h" |
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22 #endif |
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23 |
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24 |
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25 EXPORT_C CSecureStore* CSecureStore::NewL(CStreamStore& aHost,const CPBEncryptSet& aKey) |
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26 /** |
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27 Instantiates a secure store. |
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28 |
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29 @leave KErrNoMemory |
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30 @param aHost The stream store acting as host for the secure store's streams. |
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31 @param aKey A Password Based Encryption Object used to generate decryption and encryption |
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32 handling objects. Ownership of this object remains with the caller who should delete it when it is no longer needed. |
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33 |
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34 @return A pointer to the new secure store object. |
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35 */ |
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36 { |
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37 return new(ELeave) CSecureStore(aHost,aKey); |
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38 } |
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39 |
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40 EXPORT_C CSecureStore* CSecureStore::NewLC(CStreamStore& aHost,const CPBEncryptSet& aKey) |
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41 /** |
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42 Instantiates a secure store and pushes a pointer to the object onto the cleanup stack. |
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43 |
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44 @leave KErrNoMemory |
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45 @param aHost The stream store acting as host for the secure store's streams. |
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46 @param aKey A Password Based Encryption Object used to generate decryption and encryption |
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47 handling objects. Ownership of this object remains with the caller who should delete it when it is no longer needed. |
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48 |
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49 @return A pointer to the new secure store object. |
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50 */ |
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51 { |
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52 CSecureStore* store=NewL(aHost,aKey); |
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53 CleanupStack::PushL(store); |
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54 return store; |
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55 } |
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56 |
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57 // Not exported |
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58 CSecureStore::CSecureStore(CStreamStore& aHost,const CPBEncryptSet& aKey) |
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59 : iHost(&aHost), |
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60 iKey(aKey) |
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61 {} |
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62 |
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63 // |
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64 // Open a stream for reading from the buffer at anId. |
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65 // |
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66 EXPORT_C MStreamBuf* CSecureStore::DoReadL(TStreamId anId) const |
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67 { |
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68 HDecryptFilter* filter=new(ELeave) HDecryptFilter; |
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69 CleanupDeletePushL(filter); |
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70 RStoreReadStream stream; |
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71 stream.OpenLC(Host(),anId); |
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72 |
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73 CPBDecryptor* decryptor=iKey.NewDecryptLC(); |
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74 filter->SetL(stream.Source(),decryptor,filter->ERead|filter->EAttached); |
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75 |
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76 CleanupStack::Pop(3, filter); // decryptor, stream, filter |
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77 return filter; |
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78 } |
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79 |
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80 // Determine key type and create appropriate encryptor |
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81 void CSecureStore::setEncryptFilterL(HEncryptFilter& aFilter, RStoreWriteStream& aStream) |
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82 { |
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83 CPBEncryptor* encryptor=iKey.NewEncryptLC(); |
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84 aFilter.SetL(aStream.Sink(),encryptor,aFilter.EWrite|aFilter.EAttached); |
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85 CleanupStack::Pop(encryptor); |
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86 } |
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87 |
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88 // |
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89 // Create a new buffer and open a stream for writing to it. |
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90 // |
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91 EXPORT_C MStreamBuf* CSecureStore::DoCreateL(TStreamId& anId) |
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92 { |
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93 HEncryptFilter* filter=new(ELeave) HEncryptFilter; |
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94 CleanupDeletePushL(filter); |
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95 RStoreWriteStream stream; |
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96 anId=stream.CreateLC(Host()); |
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97 setEncryptFilterL(*filter, stream); |
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98 CleanupStack::Pop(2); // stream, filter |
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99 return filter; |
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100 } |
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101 |
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102 EXPORT_C TStreamId CSecureStore::DoExtendL() |
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103 { |
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104 return Host().ExtendL(); |
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105 } |
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106 |
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107 EXPORT_C void CSecureStore::DoDeleteL(TStreamId anId) |
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108 { |
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109 Host().DeleteL(anId); |
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110 } |
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111 |
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112 EXPORT_C MStreamBuf* CSecureStore::DoWriteL(TStreamId anId) |
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113 { |
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114 HEncryptFilter* filter=new(ELeave) HEncryptFilter; |
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115 CleanupDeletePushL(filter); |
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116 RStoreWriteStream stream; |
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117 stream.OpenLC(Host(), anId); |
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118 setEncryptFilterL(*filter, stream); |
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119 CleanupStack::Pop(2); // stream, filter |
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120 return filter; |
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121 } |
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122 |
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123 EXPORT_C MStreamBuf* CSecureStore::DoReplaceL(TStreamId anId) |
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124 { |
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125 HEncryptFilter* filter=new(ELeave) HEncryptFilter; |
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126 CleanupDeletePushL(filter); |
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127 RStoreWriteStream stream; |
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128 stream.ReplaceLC(Host(), anId); |
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129 setEncryptFilterL(*filter, stream); |
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130 CleanupStack::Pop(2); // stream, filter |
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131 return filter; |
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132 } |
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133 |
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134 EXPORT_C void CSecureStore::DoCommitL() |
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135 { |
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136 Host().CommitL(); |
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137 } |
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138 |
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139 EXPORT_C void CSecureStore::DoRevertL() |
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140 { |
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141 Host().RevertL(); |
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142 } |