void CPreModifierPlugin::FsReadFileSectionL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt length = 0;
TInt64 pos = 0;
TFileName filename;
TParse parse;
TBuf<256> testfilename1;
//setting up test files
testfilename1.Append(iDriveToTest);
testfilename1.Append(_L(":\\Data\\test.txt"));
filename = aRequest.Src().FullName();
err = aRequest.Read(TFsPluginRequest::ELength, length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::EPosition, pos);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
_LOG2(_L("CPreModifierPlugin::FsReadFileSectionL, file: %S"), &filename);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsReadFileSectionL, post intercept - enter"));
RFilePlugin fileplugin2(aRequest,ETrue);
//open a second file
err = fileplugin2.Open(testfilename1, EFileWrite);
_LOG3(_L("CPreModifierPlugin::FsReadFileSectionL - RFilePlugin::Open for %S returned %d"), &testfilename1, err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt64 size=0;
err = fileplugin2.Size(size);
_LOG3(_L("CPreModifierPlugin::FsReadFileSectionL - RFilePlugin::Size for %S returned %d"), &testfilename1, err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//close the second file
fileplugin2.Close();
_LOG(_L("CPreModifierPlugin::FsReadFileSectionL - post intercept - exit"));
}
else
{
User::Invariant();
}
}
/**
Delivers the request to the end of plugin thread's queue.
In certain circumstances, where the request requires priority handling
it adds it to the front of the queue.
@param aRequest: The request to be delivered
@return KErrNone
*/
EXPORT_C TInt CFsPlugin::Deliver(TFsPluginRequest& aRequest)
{
__ASSERT_ALWAYS(iThreadP != NULL, User::Panic(_L("CFsPlugin::Dispatch"),999));
TInt function = aRequest.Function();
if(function == EFsPluginOpen)
{
// Don't dispatch open requests to the plugin thread
return KPluginMessageForward;
}
if(function == EFsPluginDoRequest ||
function == EFsPluginDoControl ||
function == EFsPluginDoCancel)
{
iThreadP->DeliverFront(aRequest.Request());
}
else
{
iThreadP->DeliverBack(aRequest.Request());
}
return KErrNone;
}
/**
Handle requests to Dismount the plugin only.
This plugin is designed such that its removal is not allowed.
@internalComponent
*/
TInt CUnremovablePlugin::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt function = aRequest.Function();
if (aRequest.IsPostOperation())
{
_LOG2(_L("CUnremovablePlugin post intercept for function %d"), function);
//We should never get here
//Is it even correct to post-intercept a EFsDismountPlugin ??
User::Invariant();
}
else
{
_LOG2(_L("CUnremovablePlugin pre intercept for function %d"), function);
//If a user is trying to dismount this plugin and this plugin doesn't want
//to be dismounted then we should eb able to intecept this and return KErrAccessDenied or some
//appropriate error code.
if(iRemovable)
{
return KErrNone;
}
else
{
return KErrPermissionDenied;
}
}
return err;
}
/**
@internalComponent
*/
TInt CTestHexHook::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNotSupported;
TInt function = aRequest.Function();
iDrvNumber = aRequest.DriveNumber();
switch(function)
{
case EFsFileOpen:
err = HexFileOpen(aRequest);
break;
case EFsFileRead:
// Post intercept does nothing except prove that it is possible and that no deadlock occurs.
// plugin always calls FileRead() when receiving a EFsFileRead, and so the mesage gets completed
// by the plugin and has to be post intercepted by the plugin (if registered to post-intercept the request)
// and any plugins above it.
if (!(aRequest.IsPostOperation()))
err = HexFileRead(aRequest);
break;
default:
break;
}
return err;
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileWriteL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt length = 0;
TInt64 pos = 0;
TFileName filename;
TParse parse;
TBuf<256> testfilename1;
TBuf<256> testfilename2;
//setting up test files
testfilename1.Append(iDriveToTest);
testfilename1.Append(_L(":\\Data\\test.txt"));
testfilename2.Append(iDriveToTest);
testfilename2.Append(_L(":\\Data\\createcreate3.txt"));
err = aRequest.FileName(filename);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::ELength, length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::EPosition, pos);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
_LOG4(_L("CPreModifierPlugin::FsFileWriteL, file: %S, pos: %d, length: %d"), &filename, pos, length);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileWriteL, post intercept"));
}
else
{
User::Invariant();
}
}
/**
Validate that nobody is trying to touch the virus scanner files.
@internalComponent
@return A value depending on whethe the virus scanner files are
being fiddled with.
@param aDriveNum The drive number of the request which called into
the test virus scanning hook.
@param aName The full pathname of the file being accessed by the
request to the file server hook.
*/
TInt CTestVirusHook::ValidateRequest(TFsPluginRequest& aRequest, TFileName& aFileName)
{
TInt driveNumber = aRequest.DriveNumber();
TInt err = GetName(&aRequest, aFileName);
if(err != KErrNone)
return(err);
if (driveNumber == EDriveC)
{
TInt r = aFileName.Find(_L("\\virusdef.txt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the virus definition file.
return KErrAccessDenied;
}
r = aFileName.Find(_L("\\system\\libs\\t_vshook.pxt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the this dll
return KErrAccessDenied;
}
r = aFileName.Find(_L("\\sys\\bin\\t_vshook.pxt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the this dll
return KErrAccessDenied;
}
}
return KErrNone;
}
/**
Handle requests
@internalComponent
*/
TInt CTemplatePlugin::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt function = aRequest.Function();
if (aRequest.IsPostOperation())
{
_LOG2(_L("CTemplatePlugin post intercept for function %d"), function);
}
else
{
_LOG2(_L("CTemplatePlugin pre intercept for function %d"), function);
}
return err;
}
void CPreModifierPlugin::FsDirReadOneL(TFsPluginRequest& aRequest)
{
TFileName name;
TInt err = aRequest.FileName(name);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsDirReadOneL, post intercept"));
}
else
{
User::Invariant();
}
}
void CPreModifierPlugin::FsRenameL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TFileName oldfilename;
TFileName newfilename;
oldfilename = aRequest.Src().FullName();
newfilename = aRequest.Dest().FullName();
TBuf<256> testfilename1;
//setting up test files
testfilename1.Append(iDriveToTest);
testfilename1.Append(_L(":\\Data\\test.txt"));
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsRenameL, post intercept"));
RFilePlugin fileplugin2(aRequest);
//open a second file
err = fileplugin2.Open(testfilename1, EFileWrite);
_LOG3(_L("CPreModifierPlugin::FsRenameL, RFilePlugin::Open for %S returned %d"), &testfilename1, err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt64 size=0;
err = fileplugin2.Size(size);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//close the second file
fileplugin2.Close();
_LOG2(_L("CPreModifierPlugin::FsRenameL, RFilePlugin::Close to the second file returned %d"), err);
}
else
{
User::Invariant();
}
}
void CPreModifierPlugin::FsFileTempL(TFsPluginRequest& aRequest)
{
TBuf<256> testfilename1;
//setting up test files
testfilename1.Append(iDriveToTest);
testfilename1.Append(_L(":\\Data\\"));
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileTempL, post intercept"));
RFilePlugin fileplugin(aRequest);
TInt err = fileplugin.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//write to the newly created temp file
TBuf8<64> wbuffer;
wbuffer.Copy(_L8("TestTestTest"));
err = fileplugin.Write(0, wbuffer);
_LOG2(_L("CPreModifierPlugin::FsFileTempL, RFilePlugin::Write to the newly created temp file returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt length = wbuffer.Length();
HBufC8* tempBuf = HBufC8::NewMaxLC(length);
TPtr8 tempBufPtr((TUint8 *)tempBuf->Des().Ptr(), length, length);
err = fileplugin.Read(0, tempBufPtr);
_LOG2(_L("CPreModifierPlugin::FsFileTempL, RFilePlugin::Read returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
//testing the correct thing has been written to the drive
err = wbuffer.Compare(tempBufPtr);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
CleanupStack::PopAndDestroy();
}
else
{
User::Invariant();
}
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsDirReadPackedL(TFsPluginRequest& aRequest)
{
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsDirReadPackedL, post intercept"));
}
else
{
User::Invariant();
}
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileSubCloseL(TFsPluginRequest& aRequest)
{
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileSubCloseL, post intercept"));
}
else
{
User::Invariant();
}
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileRenameL(TFsPluginRequest& aRequest)
{
TFileName oldfilename, newfilename;
TParse parse;
oldfilename = aRequest.Src().FullName();
newfilename = aRequest.Dest().FullName();
parse.Set(oldfilename, NULL, NULL);
TPtrC extension(parse.Ext());
_LOG3(_L("CPreModifierPlugin::FsFileRenameL, old name: %S, new name: %S"), &oldfilename, &newfilename);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileRenameL, post intercept"));
if (extension.CompareF(_L(".tst")) == 0)
{
TBuf8<32> tempBuf = (_L8("Rename Post Intercept"));
RFilePlugin fileplugin(aRequest);
TInt err = fileplugin.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = fileplugin.Write(20, tempBuf);
_LOG2(_L("CPreModifierPlugin::FsFileRenameL, FileWrite returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
}
}
else
{
User::Invariant();
}
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileUnLockL(TFsPluginRequest& aRequest)
{
TInt length = 0;
TInt64 pos = 0;
TFileName filename;
TParse parse;
TInt err = aRequest.FileName(filename);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::ELength, length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::EPosition, pos);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
//TPtrC extension(parse.Ext());
_LOG4(_L("CPreModifierPlugin::FsFileUnLockL, file: %S, pos: %d, length: %d"), &filename, pos, length);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileUnLockL, post intercept"));
}
else
{
User::Invariant();
}
}
/**
@internalTechnology
@prototype
@deprecated
Pushes a msgop, dispatches it and waits for it to complete
*/
TInt CFsPlugin::DispatchOperation(TFsPluginRequest& aRequest, TDes8& aDes, TInt64 aPos, TInt aFunction)
{
if (aRequest.Function() != EFsFileRead && aRequest.Function() != EFsFileWrite)
return KErrNotSupported;
if (aFunction != EFsFileRead && aFunction != EFsFileWrite)
return KErrNotSupported;
CFsMessageRequest& msgRequest = * (CFsMessageRequest*) aRequest.Request();
TInt len = aDes.Length();
if (len <= 0)
return CFsRequest::EReqActionComplete;
TUint8* ptr = (TUint8*) aDes.Ptr();
TInt r = msgRequest.PushOperation(
aPos, len, ptr,
0, // aOffset
Complete, // callback
0, // next state
aFunction);
if (r != KErrNone)
return r;
CFsPlugin* plugin = this;
FsPluginManager::ReadLockChain();
FsPluginManager::NextPlugin(plugin, &msgRequest);
msgRequest.iCurrentPlugin = plugin;
msgRequest.Dispatch();
FsPluginManager::UnlockChain();
iThreadP->OperationLockWait();
aDes.SetLength(len);
return msgRequest.LastError(); // KErrNone;
}
/**
@internalComponent
*/
TInt CTestVirusHook::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNotSupported;
TInt function = aRequest.Function();
iDrvNumber = aRequest.DriveNumber();
switch(function)
{
case EFsFileOpen:
err = VsFileOpen(aRequest);
break;
case EFsFileSubClose:
VsFileClose(aRequest);
break;
case EFsFileRename:
case EFsRename:
case EFsReplace:
err = VsFileRename(aRequest);
break;
case EFsDelete:
err = VsFileDelete(aRequest);
break;
case EFsReadFileSection:
err = VsReadFileSection(aRequest);
break;
default:
break;
}
return err;
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileSetSizeL(TFsPluginRequest& aRequest)
{
TFileName filename;
TParse parse;
TInt err = aRequest.FileName(filename);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
_LOG2(_L("CPreModifierPlugin::FsFileSetSizeL, file: %S"), &filename);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileSetSizeL, post intercept"));
}
else
{
User::Invariant();
}
}
/**
@prototype
@deprecated
@see RFilePlugin::Read
*/
EXPORT_C TInt CFsPlugin::FileRead(TFsPluginRequest& aRequest, TDes8& aDes, TInt64 aPos)
{
CFileShare* share;
CFileCB* file;
GetFileFromScratch((CFsMessageRequest*) aRequest.Request(), share, file);
TInt64 fileSize = file->CachedSize64();
if (aPos > fileSize)
aPos = fileSize;
TInt len = aDes.Length();
if (aPos >= fileSize)
len = 0;
if (aPos + len > fileSize)
// filesize - pos shall of TInt size
// Hence to suppress warning
len = (TInt)(fileSize - aPos);
aDes.SetLength(len);
return DispatchOperation(aRequest, aDes, aPos, EFsFileRead);
}
/** @prototype */
EXPORT_C TInt CFsPlugin::ClientRead(TFsPluginRequest& aRequest, TDes8& aDes, TInt aOffset)
{
CFsMessageRequest& msgRequest = * (CFsMessageRequest*) aRequest.Request();
TMsgOperation& currentOperation = msgRequest.CurrentOperation();
TInt r = KErrNone;
if (currentOperation.iClientRequest)
{
r = msgRequest.Read(0, aDes, aOffset);
}
else
{
TInt len = aDes.Length();
if (len > (currentOperation.iReadWriteArgs.iTotalLength - aOffset))
return KErrArgument;
aDes.Copy ( (TUint8*) currentOperation.iReadWriteArgs.iData + aOffset, len );
currentOperation.iReadWriteArgs.iOffset = aOffset + len;
}
return r;
}
/**
Handle requests
@internalComponent
*/
TInt CExclusiveAccessPlugin::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt function = aRequest.Function();
switch(function)
{
case EFsFileRead:
err = FsFileReadL(aRequest);
break;
case EFsFileWrite:
err = FsFileWriteL(aRequest);
break;
default:
//Only registered for Read/Write
break;
}
return err;
}
/**
Handle requests
@internalComponent
*/
TInt CStacked3Plugin::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt function = aRequest.Function();
switch(function)
{
case EFsFileRead:
break;
case EFsFileWrite:
TRAP(err, FsFileWriteL(aRequest));
break;
default:
break;
}
return err;
}
/**
@internalComponent
*/
void CPreModifierPlugin::FsFileLockL(TFsPluginRequest& aRequest)
{
TInt length = 0;
TInt64 pos = 0;
TFileName filename;
TParse parse;
TInt err = aRequest.FileName(filename);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::ELength, length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::EPosition, pos);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
TPtrC extension(parse.Ext());
_LOG4(_L("CPreModifierPlugin::FsFileLockL, file: %S, pos: %d, length: %d"), &filename, pos, length);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileLockL, post intercept"));
// Request read from post interception
if (extension.CompareF(_L(".lockread")) == 0)
{
length = 10;
HBufC8* tempBuf = HBufC8::NewMaxLC(length);
TPtr8 tempBufPtr((TUint8 *)tempBuf->Des().Ptr(), length, length);
_LOG(_L("CPreModifierPlugin::FsFileLockL , calling AdoptFromClient in post intercept"));
RFilePlugin fileplugin(aRequest);
TInt err = fileplugin.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
_LOG2(_L("CPreModifierPlugin::FsFileLockL, Adopt returned %d"), err);
err = fileplugin.Read(pos, tempBufPtr, length);
_LOG2(_L("CPreModifierPlugin::FsFileLockL, FileRead returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
CleanupStack::PopAndDestroy();
}
// Request close from post interception
if(extension.CompareF(_L(".lockclose")) == 0)
{
_LOG(_L("CPreModifierPlugin::FsFileLockL, file = *.lockclose post intercept "));
RFilePlugin fileplugin(aRequest);
TInt err = fileplugin.AdoptFromClient();
_LOG2(_L("CPreModifierPlugin::FsFileLockL ,Open %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
_LOG(_L("CPreModifierPlugin::FsFileLockL, Close"));
}
}
else
{
User::Invariant();
}
}
/**
Handle requests
@internalComponent
*/
TInt CPreModifierPlugin::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNone;
TInt function = aRequest.Function();
switch(function)
{
case EFsFileRead:
TRAP(err, FsFileReadL(aRequest));
break;
case EFsFileWrite:
TRAP(err, FsFileWriteL(aRequest));
break;
case EFsFileRename:
TRAP(err, FsFileRenameL(aRequest));
break;
case EFsFileCreate:
TRAP(err, FsFileCreateL(aRequest));
break;
case EFsFileSize:
TRAP(err, FsFileSizeL(aRequest));
break;
case EFsFileSetSize:
TRAP(err, FsFileSetSizeL(aRequest));
break;
case EFsFileLock:
TRAP(err, FsFileLockL(aRequest));
break;
case EFsFileUnLock:
TRAP(err, FsFileUnLockL(aRequest));
break;
case EFsFileSeek:
TRAP(err, FsFileSeekL(aRequest));
break;
case EFsDirReadOne:
TRAP(err,FsDirReadOneL(aRequest));
break;
case EFsDirReadPacked:
TRAP(err,FsDirReadPackedL(aRequest));
break;
case EFsFileOpen:
TRAP(err, FsFileOpenL(aRequest));
break;
case EFsFileReplace:
TRAP(err, FsFileReplaceL(aRequest));
break;
case EFsReadFileSection:
TRAP(err, FsReadFileSectionL(aRequest));
break;
case EFsFileSubClose:
TRAP(err, FsFileSubCloseL(aRequest));
break;
case EFsDirOpen:
TRAP(err, FsDirOpenL(aRequest));
break;
case EFsFileTemp:
TRAP(err, FsFileTempL(aRequest));
break;
case EFsDelete:
TRAP(err, FsDeleteL(aRequest));
break;
case EFsReplace:
TRAP(err, FsReplaceL(aRequest));
break;
case EFsRename:
TRAP(err, FsRenameL(aRequest));
break;
case EFsEntry:
TRAP(err, FsEntryL(aRequest));
break;
case EFsSetEntry:
TRAP(err, FsSetEntryL(aRequest));
break;
default:
break;
}
return err;
}
/*Test to ensure that when a file has been opened for exclusive access,
* i.e. readonly, that froma plugin we can still read from it
*/
TInt CExclusiveAccessPlugin::FsFileReadL(TFsPluginRequest& aRequest)
{
if(!aRequest.IsPostOperation()) // pre-operation
{
RFilePlugin file(aRequest);
TInt err = file.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TInt64 pos;
err = aRequest.Read(TFsPluginRequest::EPosition, pos); // get pos
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TInt length;
err = aRequest.Read(TFsPluginRequest::ELength, length); //get length
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
if(length>265)
length=256;
//we should check that this file is in fact registered as read only?
//if not.. User::Invariant()?
TEntry entry;
RFsPlugin rfsplugin(aRequest);
err = rfsplugin.Connect();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TFileName fileName;
err = aRequest.FileName(fileName);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
err = rfsplugin.Entry(fileName, entry);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
//can we read a readonly file? - should be fine.
TBuf8<256> data;
err = file.Read(pos,data,length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
file.Close();
rfsplugin.Close();
}
return KErrNone;
}
void CPreModifierPlugin::FsReplaceL(TFsPluginRequest& aRequest)
{
TFileName oldfilename;
TFileName newfilename;
oldfilename = aRequest.Src().FullName();
newfilename = aRequest.Dest().FullName();
TBuf<256> testfilename1;
//setting up test files
testfilename1.Append(iDriveToTest);
testfilename1.Append(_L(":\\Data\\test.txt"));
if (aRequest.IsPostOperation())
{
//STF: Is this code going to get called - the pre-operation completes early?
_LOG(_L("CPreModifierPlugin::FsReplaceL, post intercept"));
//We should check that the name has changed here.
RFilePlugin file(aRequest);
TInt err = file.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt compare = oldfilename.Compare(newfilename);
if(compare != 0) //is equal
{
//User::Leave(compare);
//It wont be equal as the name is coming from the request aint it.
//Pointless comparison then eh?
}
file.Close();
RFilePlugin fileplugin2(aRequest);
//open a second file
err = fileplugin2.Open(testfilename1, EFileWrite);
_LOG3(_L("CPreModifierPlugin::FsReplaceL, RFilePlugin::Open for %S returned %d"), &testfilename1, err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt64 size=0;
err =fileplugin2.Size(size);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//close the second file
fileplugin2.Close();
_LOG2(_L("CPreModifierPlugin::FsReplaceL, RFilePlugin::Close to the second file returned %d"), err);
}
else
{
User::Invariant();
}
}
void CPreModifierPlugin::FsFileReplaceL(TFsPluginRequest& aRequest)
{
TFileName filename;
TParse parse;
filename = aRequest.Src().FullName();
TUint mode;
TInt err = aRequest.Read(TFsPluginRequest::EMode, mode);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
TPtrC extension(parse.Ext());
_LOG2(_L("CPreModifierPlugin::FsFileReplaceL, file: %S"), &filename);
if (aRequest.IsPostOperation())
{
_LOG(_L("CPreModifierPlugin::FsFileReplaceL, post intercept"));
if ((extension.CompareF(_L(".tst")) == 0) && (aRequest.Message().Int1() != 0))
{
//write to the newly replaced file
TBuf8<64> wbuffer;
wbuffer.Copy(_L8("TestTestTest"));
RFilePlugin fileplugin(aRequest);
TInt err = fileplugin.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = fileplugin.Write(0, wbuffer);
_LOG2(_L("CPreModifierPlugin::FsFileReplaceL, RFilePlugin::Write to the newly created file returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
TInt length = wbuffer.Length();
HBufC8* tempBuf = HBufC8::NewMaxLC(length);
TPtr8 tempBufPtr((TUint8 *)tempBuf->Des().Ptr(), length, length);
err = fileplugin.Read(0, tempBufPtr);
_LOG2(_L("CPreModifierPlugin::FsFileReplaceL, RFilePlugin::Read returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRe
//testing the correct thing has been written to the drive
err = wbuffer.Compare(tempBufPtr);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
CleanupStack::PopAndDestroy();
}
}
else
{
User::Invariant();
}
}
/*Test to ensure that when a file has been opened for exclusive access,
* i.e. readonly, that from a plugin we can still write to it regardless
*/
TInt CExclusiveAccessPlugin::FsFileWriteL(TFsPluginRequest& aRequest)
{
if(!aRequest.IsPostOperation()) // pre-operation
{
//Make sure that the file is read only.
RFilePlugin file(aRequest);
TInt err = file.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
RFsPlugin rfsplugin(aRequest);
err = rfsplugin.Connect();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TEntry entry;
err = rfsplugin.Entry(aRequest.Src().FullName(), entry);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
// if(!entry.IsReadOnly())
// {
// //this test should only being being used for read only files.
// User::Invariant();
// }
TInt64 pos;
err = aRequest.Read(TFsPluginRequest::EPosition, pos); //get pos
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TInt length;
err = aRequest.Read(TFsPluginRequest::ELength, length); //get length
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
TBuf8<1024> data;
err = aRequest.Read(TFsPluginRequest::EData, data); //get data to write
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
//Now test that we can actually write to this read-only file
//Should pass, kerrnone.
err = file.Write(pos,data,length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
return err;
file.Close();
//We've performed the efsfilewrite, so return kerrcompletion.
return KErrCompletion;
}
return KErrNone;
}
/**
@internalComponent
*/
void CStacked3Plugin::FsFileWriteL(TFsPluginRequest& aRequest)
{
TInt length = 0;
TInt64 pos = 0;
TFileName filename;
TParse parse;
TInt err = aRequest.FileName(filename);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::ELength, length);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
err = aRequest.Read(TFsPluginRequest::EPosition, pos);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
parse.Set(filename, NULL, NULL);
_LOG4(_L("CStacked3Plugin::FsFileWriteL, file: %S, pos: %d, length: %d"), &filename, pos, length);
if (aRequest.IsPostOperation())
{
_LOG(_L("CStacked3Plugin::FsFileWriteL, post intercept"));
}
else
{
_LOG(_L("CStacked3Plugin::FsFileWriteL, pre intercept"));
//set up test data for plugin
TBuf8<20> wbuffer;
wbuffer.Copy(_L8("HELLO WORLD SYMBIAN"));
TInt length = wbuffer.Length();
HBufC8* tempBuf = HBufC8::NewMaxLC(length);
TPtr8 tempBufPtr((TUint8 *)tempBuf->Des().Ptr(), length, length);
RFilePlugin fileplugin(aRequest);
err = fileplugin.AdoptFromClient();
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//write to file
err = fileplugin.Write(pos, wbuffer);
_LOG2(_L("CStacked3Plugin::FsFileWriteL, RFilePlugin::Write returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//read from file
err = fileplugin.Read(pos, tempBufPtr);
_LOG2(_L("CStackedPlugin::FsFileWriteL, RFilePlugin::Read returned %d"), err);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
//testing the correct thing has been written to the drive
err = wbuffer.Compare(tempBufPtr);
iLastError = err;
iLineNumber = __LINE__;
if(err!=KErrNone)
User::Leave(err); //trapped in DoRequestL
fileplugin.Close();
CleanupStack::PopAndDestroy();
// send request down the stack
User::Leave(KErrCompletion);
}
}
