- checked filename's validation before sending drag info

- refactored duplicated write to drop dir code
- removed legacy member variables
- fixed code style
- fixed typo

src/lib/client/Client.cpp

@@ -21,6 +21,7 @@
 #include "client/ServerProxy.h"
 #include "synergy/Screen.h"
 #include "synergy/Clipboard.h"
+#include "synergy/DropHelper.h"
 #include "synergy/PacketStreamFilter.h"
 #include "synergy/ProtocolUtil.h"
 #include "synergy/protocol_types.h"
@@ -746,29 +747,8 @@ CClient::writeToDropDirThread(void*)
 		ARCH->sleep(.1f);
 	}
 	
-	m_fileTransferDes = m_screen->getDropTarget();
-	LOG((CLOG_DEBUG "dropping file, files=%i target=%s", m_dragFileList.size(), m_fileTransferDes.c_str()));
-
-	if (!m_fileTransferDes.empty() && m_dragFileList.size() > 0) {
-		std::fstream file;
-		CString dropTarget = m_fileTransferDes;
-#ifdef SYSAPI_WIN32
-		dropTarget.append("\\");
-#else
-		dropTarget.append("/");
-#endif
-		dropTarget.append(m_dragFileList.at(0).getFilename());
-		file.open(dropTarget.c_str(), std::ios::out | std::ios::binary);
-		if (!file.is_open()) {
-			// TODO: file open failed
-		}
-		
-		file.write(m_receivedFileData.c_str(), m_receivedFileData.size());
-		file.close();
-	}
-	else {
-		LOG((CLOG_ERR "drop file failed: drop target is empty"));
-	}
+	CDropHelper::writeToDir(m_screen->getDropTarget(), m_dragFileList,
+					m_receivedFileData);
 }
 
 void

src/lib/client/Client.h

@@ -110,9 +110,6 @@ public:
 	//! Create a new thread and use it to send file to Server
 	void				sendFileToServer(const char* filename);
 	
-	//! Set file transder destination
-	void				setFileTransferDes(CString& des) { m_fileTransferDes = des; }
-	
 	//! Send dragging file information back to server
 	void				sendDragInfo(UInt32 fileCount, CString& info, size_t size);
 	
@@ -231,8 +228,6 @@ private:
 	CCryptoOptions			m_crypto;
 	std::size_t				m_expectedFileSize;
 	CString					m_receivedFileData;
-	CString					m_fileTransferSrc;
-	CString					m_fileTransferDes;
 	CDragFileList			m_dragFileList;
 	CString					m_dragFileExt;
 	CThread*				m_sendFileThread;

src/lib/platform/MSWindowsScreen.cpp

@@ -1873,7 +1873,12 @@ CMSWindowsScreen::getDraggingFilename()
 		ShowWindow(m_dropWindow, SW_HIDE);
 
 		if (!filename.empty()) {
-			m_draggingFilename = filename;
+			if (CDragInformation::isFileValid(filename)) {
+				m_draggingFilename = filename;
+			}
+			else {
+				LOG((CLOG_DEBUG "drag file name is invalid: %s", filename.c_str()));
+			}
 		}
 
 		if (m_draggingFilename.empty()) {

src/lib/platform/OSXDragSimulator.m

@@ -82,7 +82,7 @@ fakeDragging(const char* str, int cursorX, int cursorY)
 		
 	[g_dragWindow setFrame:rect display:NO];
 	[g_dragWindow makeKeyAndOrderFront:nil];
-		[NSApp activateIgnoringOtherApps:YES];
+	[NSApp activateIgnoringOtherApps:YES];
 	
 	[g_dragView setFileExt:g_ext];
 

src/lib/platform/OSXScreen.cpp

@@ -911,12 +911,6 @@ COSXScreen::leave()
 		CString& fileList = getDraggingFilename();
 		
 		if (!m_isPrimary) {
-			// TODO: is this duplicated?
-			// fake esc key down and up
-			fakeKeyDown(kKeyEscape, 8192, 1);
-			fakeKeyUp(1);
-			fakeMouseButton(kButtonLeft, false);
-			
 			if (fileList.empty() == false) {
 				CClientApp& app = CClientApp::instance();
 				CClient* client = app.getClientPtr();

src/lib/server/Server.cpp

@@ -22,6 +22,7 @@
 #include "server/ClientProxyUnknown.h"
 #include "server/PrimaryClient.h"
 #include "synergy/IPlatformScreen.h"
+#include "synergy/DropHelper.h"
 #include "synergy/option_types.h"
 #include "synergy/protocol_types.h"
 #include "synergy/XScreen.h"
@@ -2040,31 +2041,8 @@ CServer::writeToDropDirThread(void*)
 		ARCH->sleep(.1f);
 	}
 
-	m_fileTransferDes = m_screen->getDropTarget();
-	LOG((CLOG_DEBUG "dropping file, files=%i target=%s", m_dragFileList.size(), m_fileTransferDes.c_str()));
-
-	if (!m_fileTransferDes.empty() && m_dragFileList.size() > 0) {
-		std::fstream file;
-		CString dropTarget = m_fileTransferDes;
-#ifdef SYSAPI_WIN32
-		dropTarget.append("\\");
-#else
-		dropTarget.append("/");
-#endif
-		dropTarget.append(m_dragFileList.at(0).getFilename());
-		file.open(dropTarget.c_str(), std::ios::out | std::ios::binary);
-		if (!file.is_open()) {
-			// TODO: file open failed
-		}
-		
-		file.write(m_receivedFileData.c_str(), m_receivedFileData.size());
-		file.close();
-
-		m_dragFileList.clear();
-	}
-	else {
-		LOG((CLOG_ERR "drop file failed: drop target is empty"));
-	}
+	CDropHelper::writeToDir(m_screen->getDropTarget(), m_dragFileList,
+					m_receivedFileData);
 }
 
 bool

src/lib/server/Server.h

@@ -145,9 +145,6 @@ public:
 	//! Set the expected size of receiving file
 	void				setExpectedFileSize(CString data);
 	
-	//! Set file transder destination
-	void				setFileTransferDes(CString& des) { m_fileTransferDes = des; }
-	
 	//! Received a chunk of file data
 	void				fileChunkReceived(CString data);
 
@@ -467,8 +464,6 @@ private:
 	// file transfer
 	size_t				m_expectedFileSize;
 	CString				m_receivedFileData;
-	CString				m_fileTransferSrc;
-	CString				m_fileTransferDes;
 	CDragFileList		m_dragFileList;
 	CThread*			m_sendFileThread;
 	CThread*			m_writeToDropDirThread;

src/lib/synergy/DragInformation.cpp

@@ -86,12 +86,12 @@ CDragInformation::parseDragInfo(CDragFileList& dragFileList, UInt32 fileNum, CSt
 }
 
 CString
-CDragInformation::getDragFileExtension(CString fileName)
+CDragInformation::getDragFileExtension(CString filename)
 {
 	size_t findResult = string::npos;
-	findResult = fileName.find_last_of(".", fileName.size());
+	findResult = filename.find_last_of(".", filename.size());
 	if (findResult != string::npos) {
-		return fileName.substr(findResult + 1, fileName.size() - findResult - 1);
+		return filename.substr(findResult + 1, filename.size() - findResult - 1);
 	}
 	else {
 		return "";
@@ -112,6 +112,21 @@ CDragInformation::setupDragInfo(CDragFileList& fileList, CString& output)
 	return size;
 }
 
+bool
+CDragInformation::isFileValid(CString filename)
+{
+	bool result = false;
+	std::fstream file(filename.c_str(), ios::in|ios::binary);
+
+	if (file.is_open()) {
+		result = true;
+	}
+
+	file. close();
+
+	return result;
+}
+
 size_t
 CDragInformation::stringToNum(CString& str)
 {

src/lib/synergy/DragInformation.h

@@ -35,12 +35,14 @@ public:
 	void				setFilesize(size_t size) { m_filesize = size; }
 	
 	static void			parseDragInfo(CDragFileList& dragFileList, UInt32 fileNum, CString data);
-	static CString		getDragFileExtension(CString fileName);
-	// helper function to setuo drag info
+	static CString		getDragFileExtension(CString filename);
+	// helper function to setup drag info
 	// example: filename1,filesize1,filename2,filesize2,
 	// return file count
 	static int			setupDragInfo(CDragFileList& fileList, CString& output);
 
+	static bool			isFileValid(CString filename);
+
 private:
 	static size_t		stringToNum(CString& str);
 	static CString		getFileSize(CString& filename);

src/lib/synergy/DropHelper.cpp

@@ -0,0 +1,51 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2014 Bolton Software Ltd.
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "synergy/DropHelper.h"
+
+#include "base/Log.h"
+
+#include <fstream>
+
+void
+CDropHelper::writeToDir(const CString& destination, CDragFileList& fileList, CString& data)
+{
+	LOG((CLOG_DEBUG "dropping file, files=%i target=%s", fileList.size(), destination.c_str()));
+
+	if (!destination.empty() && fileList.size() > 0) {
+		std::fstream file;
+		CString dropTarget = destination;
+#ifdef SYSAPI_WIN32
+		dropTarget.append("\\");
+#else
+		dropTarget.append("/");
+#endif
+		dropTarget.append(fileList.at(0).getFilename());
+		file.open(dropTarget.c_str(), std::ios::out | std::ios::binary);
+		if (!file.is_open()) {
+			LOG((CLOG_DEBUG "drop file failed: can not open %s", dropTarget.c_str()));
+		}
+		
+		file.write(data.c_str(), data.size());
+		file.close();
+
+		fileList.clear();
+	}
+	else {
+		LOG((CLOG_ERR "drop file failed: drop target is empty"));
+	}
+}

src/lib/synergy/DropHelper.h

@@ -0,0 +1,27 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2014 Bolton Software Ltd.
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "synergy/DragInformation.h"
+#include "base/String.h"
+
+class CDropHelper {
+public:
+	static void			writeToDir(const CString& destination,
+							CDragFileList& fileList, CString& data);
+};