1 /* |
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2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the License "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include "scrhelpercommon.h" |
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20 #include "scrhelperserver.h" |
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21 #include <e32cmn.h> |
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22 #include <e32debug.h> |
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23 #include <usif/scr/scrcommon.h> |
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24 |
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25 using namespace Usif; |
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26 |
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27 static const TUint scrHelperRangeCount = 2; |
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28 |
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29 static const TInt scrHelperRanges[scrHelperRangeCount] = |
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30 { |
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31 0, // Range-0 - 0 to EBaseSession-1. Not used. |
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32 CScsServer::EBaseSession, // Range-1 - EBaseSession to KMaxTInt inclusive. |
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33 }; |
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34 |
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35 static const TUint8 scrHelperElementsIndex[scrHelperRangeCount] = |
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36 { |
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37 CPolicyServer::ENotSupported, // Range 0 is not supported. |
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38 0, // Range 1 must come from the SCR Server. |
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39 }; |
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40 |
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41 static const CPolicyServer::TPolicyElement scrHelperElements[] = |
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42 { |
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43 {_INIT_SECURITY_POLICY_S0(KUidScrServer.iUid), CPolicyServer::EFailClient} |
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44 }; |
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45 |
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46 static const CPolicyServer::TPolicy scrHelperPolicy = |
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47 { |
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48 CPolicyServer::EAlwaysPass, // Allow all connections |
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49 scrHelperRangeCount, |
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50 scrHelperRanges, |
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51 scrHelperElementsIndex, |
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52 scrHelperElements, |
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53 }; |
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54 |
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55 ///////////////////// |
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56 // CScrHelperServer |
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57 ///////////////////// |
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58 |
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59 CScrHelperServer::CScrHelperServer() |
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60 : CScsServer(ScrHelperServerVersion(), scrHelperPolicy) |
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61 { |
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62 // empty |
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63 } |
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64 |
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65 CScrHelperServer::~CScrHelperServer() |
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66 { |
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67 iFs.Close(); |
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68 } |
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69 |
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70 CScrHelperServer* CScrHelperServer::NewLC() |
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71 { |
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72 CScrHelperServer* self = new(ELeave) CScrHelperServer(); |
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73 CleanupStack::PushL(self); |
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74 self->ConstructL(); |
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75 return self; |
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76 } |
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77 |
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78 void CScrHelperServer::ConstructL() |
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79 { |
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80 User::LeaveIfError(iFs.Connect()); |
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81 User::LeaveIfError(iFs.ShareProtected()); |
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82 |
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83 StartL(KScrHelperServerName); |
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84 CScsServer::ConstructL(KScrHelperServerShutdownPeriod); |
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85 } |
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86 |
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87 CScsSession* CScrHelperServer::DoNewSessionL(const RMessage2& aMessage) |
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88 /** |
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89 Implement CScsServer by allocating a new instance of CScrHelperSession. |
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90 |
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91 @param aMessage Standard server-side handle to message. |
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92 @return New instance of the SCR Helper session class which is owned by the caller. |
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93 */ |
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94 { |
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95 DEBUG_PRINTF(_L8("SCR Helper session creation!")); |
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96 return CScrHelperSession::NewL(*this, aMessage); |
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97 } |
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98 |
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99 inline RFs& CScrHelperServer::FileServer() |
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100 { |
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101 return iFs; |
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102 } |
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103 |
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104 ///////////////////// |
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105 // CScrHelperSession |
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106 ///////////////////// |
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107 |
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108 CScrHelperSession::CScrHelperSession(CScrHelperServer& aServer) |
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109 : CScsSession(aServer) |
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110 { |
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111 // empty |
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112 } |
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113 |
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114 CScrHelperSession::~CScrHelperSession() |
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115 { |
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116 // empty |
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117 } |
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118 |
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119 CScrHelperSession* CScrHelperSession::NewL(CScrHelperServer &aServer, const RMessage2& aMessage) |
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120 /** |
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121 Factory function allocates new instance of CScrSession. |
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122 |
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123 @param aServer SCR Helper Server object. |
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124 @param aMessage Standard server-side handle to message. Not used. |
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125 @return Newly created instance of CScrHelperSession which is owned by the caller. |
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126 */ |
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127 { |
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128 (void)aMessage; // Make the compiler happy in release mode |
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129 CScrHelperSession* self = new (ELeave) CScrHelperSession(aServer); |
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130 CleanupStack::PushL(self); |
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131 self->ConstructL(); |
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132 CleanupStack::Pop(self); |
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133 return self; |
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134 } |
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135 |
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136 TBool CScrHelperSession::DoServiceL(TInt aFunction, const RMessage2& aMessage) |
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137 { |
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138 TScrHelperServerMessages f = static_cast<TScrHelperServerMessages>(aFunction); |
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139 RFs& fs = static_cast<CScrHelperServer*>(&iServer)->FileServer(); |
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140 |
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141 switch (f) |
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142 { |
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143 case EGetDatabaseFileHandle: |
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144 GetFileHandleL(fs, aMessage, KScrDatabaseFilePath); |
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145 break; |
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146 case EGetJournalFileHandle: |
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147 GetFileHandleL(fs, aMessage, KScrJournalFilePath); |
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148 break; |
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149 default: |
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150 User::Leave(KErrNotSupported); |
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151 } |
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152 //RMessage2 object is closed by both TransferToClient() and SCS framework. |
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153 //return EFalse to prevent SCS to close the message object. |
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154 return EFalse; |
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155 } |
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156 |
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157 void CopyDbFromROMToSystemL(RFs& aFs, const TDesC& aTargetPath) |
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158 { |
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159 CFileMan* fileManager = CFileMan::NewL(aFs); |
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160 CleanupStack::PushL(fileManager); |
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161 User::LeaveIfError(fileManager->Copy(KScrDbRomPath, aTargetPath, 0)); |
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162 |
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163 // Reset the read-only attribute on the copied file |
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164 User::LeaveIfError(aFs.SetAtt(aTargetPath, 0, KEntryAttReadOnly)); |
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165 CleanupStack::PopAndDestroy(fileManager); |
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166 } |
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167 |
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168 void CScrHelperSession::GetFileHandleL(RFs& aFs, const RMessage2& aMessage, const TDesC& aFileName) |
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169 { |
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170 DEBUG_PRINTF2(_L("Returning file handle of %S."), &aFileName); |
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171 RBuf filePath; |
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172 filePath.CreateL(aFileName.Length()); |
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173 filePath.CleanupClosePushL(); |
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174 filePath.Copy(aFileName); |
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175 filePath[0] = aFs.GetSystemDriveChar(); |
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176 TInt err = aFs.MkDirAll(filePath); |
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177 if(KErrNone != err && KErrAlreadyExists != err) |
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178 { |
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179 DEBUG_PRINTF3(_L("An error (%d) occured while making all directories of %S."), err, &filePath); |
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180 User::Leave(err); |
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181 } |
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182 |
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183 RFile file; |
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184 TEntry entry; |
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185 |
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186 if(KErrNone == aFs.Entry(filePath, entry)) |
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187 { // The file exists, just open it. |
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188 User::LeaveIfError(file.Open(aFs, filePath, EFileShareAny|EFileWrite)); |
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189 } |
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190 else |
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191 { // The file doesn't exist. First, check if the requested file is database or journal file. |
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192 if(KScrDatabaseFilePath() == aFileName) |
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193 { // This is the database file. Copy the default one into the requested location. |
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194 DEBUG_PRINTF(_L8("SCR database file doesn't exist. It is being copied from ROM")); |
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195 CopyDbFromROMToSystemL(aFs, filePath); |
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196 // Then, open the file. |
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197 User::LeaveIfError(file.Open(aFs, filePath, EFileShareAny|EFileWrite)); |
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198 } |
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199 else |
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200 { // This is the journal file, simply create an empty file. |
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201 User::LeaveIfError(file.Create(aFs, filePath, EFileShareAny|EFileWrite)); |
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202 } |
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203 } |
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204 CleanupStack::PopAndDestroy(&filePath); |
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205 CleanupClosePushL(file); |
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206 |
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207 // Store the RFile handle into the package buffer in slot 0 and complete the message with the RFs handle |
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208 User::LeaveIfError(file.TransferToClient(aMessage, 0)); |
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209 ASSERT(aMessage.IsNull()); // The message should have been completed |
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210 |
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211 CleanupStack::PopAndDestroy(&file); |
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212 } |
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