--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/installationservices/swtransactionservices/source/server/operationfunctions.cpp Tue Aug 31 15:21:33 2010 +0300
@@ -0,0 +1,205 @@
+/*
+* Copyright (c) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+*
+*/
+
+
+/**
+ @file
+ @released
+ @internalTechnology
+*/
+
+#include "operationfunctions.h"
+#include "integritytree.h"
+#include "usiflog.h"
+
+namespace Usif
+{
+
+TBool IsBinary(const TEntry& aEntry)
+ {
+ return (aEntry[0].iUid == KExecutableImageUidValue || aEntry[0].iUid == KDynamicLibraryUidValue) ? ETrue : EFalse;
+ }
+
+
+void VerifyDeletionErrorL(TInt err)
+ {
+ if (err != KErrNone && err != KErrNotFound && err != KErrPathNotFound)
+ User::Leave(err);
+ }
+
+void IntegrityDeleteFileL(const TDesC& aPath, CIntegrityTreeLeaf* aLeaf, RFs& aFs,
+ RLoader& aLoader, CFileMan& aFileMan)
+ {
+ _LIT(KSysBin, "\\sys\\bin");
+ RBuf name;
+ name.CreateL(aPath, KMaxFileName);
+ CleanupClosePushL(name);
+ name.Append(aLeaf->Name());
+
+ TEntry entry;
+ TInt err = aFs.Entry(name, entry);
+ if (err == KErrNone)
+ {
+ aFs.SetAtt(name, 0, KEntryAttReadOnly);
+ if(entry.IsDir())
+ {
+ // Make sure to append slash before calling RmDir - otherwise it deletes the parent directory
+ if (name[name.Length()-1] != KPathDelimiter)
+ {
+ name.Append(KPathDelimiter);
+ }
+ User::LeaveIfError(aFileMan.RmDir(name));
+ }
+ else
+ {
+ if ( aLeaf->Type() == EBackupFile ) // Implies a commit operation is in progress
+ {
+
+ if ( IsBinary(entry) )
+ {
+ // Forming the file name so the renamed file can be under sys/bin
+ // for special delete mechanism using RLoader::Delete
+ RBuf tmpName;
+ TParsePtrC fileName(name);
+ tmpName.CreateL(name.Length() + KSysBin.iTypeLength);
+ CleanupClosePushL(tmpName);
+
+ tmpName.Append(fileName.Drive());
+ tmpName.Append(KSysBin);
+ tmpName.Append(fileName.Path());
+ tmpName.Append(fileName.NameAndExt());
+
+ DEBUG_PRINTF3(_L("Integrity Services - Renaming %S to %S"), &name, &tmpName);
+ aFileMan.Rename(name,tmpName,CFileMan::EOverWrite);
+ User::LeaveIfError(aLoader.Delete(tmpName)); // Using RLoader delete for paged binaries
+ DEBUG_PRINTF2(_L("Integrity Services - Deleted renamed file %S"), &tmpName);
+
+ // prune the directory tree if possible
+ RemoveDirectoryTreeL(aFs, tmpName);
+ CleanupStack::PopAndDestroy(&tmpName);
+ }
+ else
+ {
+ User::LeaveIfError(aFileMan.Delete(name));
+ }
+ }
+ else
+ {
+ // Need to use RLoader Delete which can be used during deletion of Added files during Rollback
+ User::LeaveIfError(aLoader.Delete(name));
+ }
+ }
+
+ // prune the directory tree if possible
+ RemoveDirectoryTreeL(aFs, name);
+ }
+ else if(err != KErrNotFound && err != KErrPathNotFound)
+ {
+ DEBUG_PRINTF3(_L("Integrity Services - error %d removing %S"), err, &name);
+ User::Leave(err);
+ }
+ else
+ {
+
+ DEBUG_PRINTF3(_L("Integrity Services - error %d removing %S"), err, &name);
+
+ // Check for any renamed files to move it to sys/bin for special delete mechanism
+ RBuf tmpName;
+ TParsePtrC fileName(name);
+ tmpName.CreateL(name.Length() + KSysBin.iTypeLength);
+ CleanupClosePushL(tmpName);
+
+ tmpName.Append(fileName.Drive());
+ tmpName.Append(KSysBin);
+ tmpName.Append(fileName.Path());
+ tmpName.Append(fileName.NameAndExt());
+ DEBUG_PRINTF2(_L("Integrity Services - Removing %S renamed binary files if any"), &tmpName);
+
+ aLoader.Delete(tmpName);
+ // prune the directory tree if possible
+ RemoveDirectoryTreeL(aFs, tmpName);
+ CleanupStack::PopAndDestroy(&tmpName);
+ }
+
+ CleanupStack::PopAndDestroy(&name);
+ }
+
+void IntegrityRestoreFileL(const TDesC& aPath, CIntegrityTreeLeaf* aLeaf, RFs& aFs,
+ RLoader& /*aLoader*/, CFileMan& /*aFileMan*/)
+ {
+ RBuf name;
+ name.CreateL(aPath, KMaxFileName);
+ CleanupClosePushL(name);
+ name.Append(aLeaf->Name());
+
+ // find the peer file, and check it's a backup.
+ CIntegrityTreeLeaf* peer = aLeaf->Peer();
+ if (peer->Type() != EBackupFile)
+ {
+ User::Leave(KErrCorrupt);
+ }
+
+ TParsePtrC parse(peer->Journal());
+ RBuf backup;
+ backup.CreateL(parse.DriveAndPath(), KMaxFileName);
+ CleanupClosePushL(backup);
+ backup.Append(parse.Name());
+ backup.Append(KPathDelimiter);
+ backup.Append(peer->Name());
+
+ TInt err = aFs.MkDirAll(name);
+ if(err != KErrNone && err != KErrAlreadyExists)
+ {
+ User::Leave(err);
+ }
+
+ err = aFs.Rename(backup, name);
+ if (err != KErrNone)
+ {
+ VerifyDeletionErrorL(err);
+ // we may have already moved it back during a previous recovery
+ // attempt, check for its presence in the original location
+ TEntry restoredEntry;
+ User::LeaveIfError(aFs.Entry(name, restoredEntry));
+ }
+ else
+ {
+ // prune the backup directory tree if possible.
+ RemoveDirectoryTreeL(aFs, backup);
+ }
+ CleanupStack::PopAndDestroy(2, &name); // backup
+ }
+
+void RemoveDirectoryTreeL(RFs& aFs, const TDesC& aFileName)
+ {
+ TParse directory;
+ User::LeaveIfError(directory.SetNoWild(aFileName, NULL, NULL));
+ while(!directory.IsRoot())
+ {
+ // try to remove this directory
+ TInt err = aFs.RmDir(directory.DriveAndPath());
+ if(err == KErrInUse || err == KErrAccessDenied)
+ {
+ break;
+ }
+ VerifyDeletionErrorL(err);
+ // move to deleted directory's parent
+ User::LeaveIfError(directory.PopDir());
+ }
+ }
+
+} // end namespace Usif