init repo

ActiveX/ASCOfficePPTXFile/PathHelpers.h

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+/*
+ * (c) Copyright Ascensio System SIA 2010-2014
+ *
+ * This program is a free software product. You can redistribute it and/or 
+ * modify it under the terms of the GNU Affero General Public License (AGPL) 
+ * version 3 as published by the Free Software Foundation. In accordance with 
+ * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect 
+ * that Ascensio System SIA expressly excludes the warranty of non-infringement
+ * of any third-party rights.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the implied 
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For 
+ * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
+ *
+ * You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia,
+ * EU, LV-1021.
+ *
+ * The  interactive user interfaces in modified source and object code versions
+ * of the Program must display Appropriate Legal Notices, as required under 
+ * Section 5 of the GNU AGPL version 3.
+ *
+ * Pursuant to Section 7(b) of the License you must retain the original Product
+ * logo when distributing the program. Pursuant to Section 7(e) we decline to
+ * grant you any rights under trademark law for use of our trademarks.
+ *
+ * All the Product's GUI elements, including illustrations and icon sets, as
+ * well as technical writing content are licensed under the terms of the
+ * Creative Commons Attribution-ShareAlike 4.0 International. See the License
+ * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
+ *
+ */
+ #pragma once
+
+#include <atlutil.h>
+#include <atlstr.h>
+
+namespace PathHelpers
+{
+	static inline BOOL UnescapeURL (LPCWSTR szStringIn, LPWSTR szStringOut, LPDWORD pdwStrLen, DWORD dwMaxLength)
+	{
+		ATLENSURE(szStringIn != NULL);
+		ATLENSURE(szStringOut != NULL);
+		
+		BOOL bRet = FALSE;
+
+		int nSrcLen =	(int) wcslen(szStringIn);
+		int nCnt	=	WideCharToMultiByte(CP_ACP, 0, szStringIn, nSrcLen, NULL, 0, NULL, NULL); 
+		if (nCnt != 0)
+		{
+			nCnt++;
+			CHeapPtr<char> szIn;
+
+			char szInBuf[ATL_URL_MAX_URL_LENGTH];
+			char *pszIn = szInBuf;
+
+			if (nCnt <= 0)
+			{
+				return FALSE;
+			}
+
+			
+			if (nCnt > ATL_URL_MAX_URL_LENGTH)
+			{
+				if (!szIn.AllocateBytes(nCnt))
+				{
+					
+					return FALSE;
+				}
+				pszIn = szIn;
+			}
+
+			nCnt = WideCharToMultiByte(CP_ACP, 0, szStringIn, nSrcLen, pszIn, nCnt, NULL, NULL); 
+			ATLASSERT( nCnt != 0 );
+
+			pszIn[nCnt] = '\0';
+
+			char szOutBuf[ATL_URL_MAX_URL_LENGTH];
+			char *pszOut = szOutBuf;
+			CHeapPtr<char> szTmp;
+
+			
+			if (dwMaxLength > ATL_URL_MAX_URL_LENGTH)
+			{
+				if (!szTmp.AllocateBytes(dwMaxLength))
+				{
+					
+					return FALSE;
+				}
+				pszOut = szTmp;
+			}
+
+			DWORD dwStrLen = 0;
+			bRet = AtlUnescapeUrl(pszIn, pszOut, &dwStrLen, dwMaxLength);
+
+			if (bRet != FALSE)
+			{
+				
+				
+				_ATLTRY
+				{
+					Checked::wmemcpy_s(szStringOut, dwMaxLength, CA2W( pszOut ), dwStrLen);
+				}
+				_ATLCATCHALL()
+				{
+					bRet = FALSE;
+				}
+			}
+			if (pdwStrLen)
+			{
+				*pdwStrLen = dwStrLen;
+			}
+		}
+
+		return bRet;
+	}
+
+	static inline CString ResourceFileSystemPath (const CString& toPath)
+	{
+		CString sPathName	=	toPath;			
+
+		int lIndex			=	-1;		
+		lIndex				=	sPathName.Find(_T("file:///"));
+		if (0 == lIndex)
+			sPathName		=	sPathName.Mid(8);
+
+		lIndex				=	sPathName.Find(_T("file://"));
+		if (0 == lIndex)
+			sPathName		=	sPathName.Mid(7);
+
+		lIndex				=	sPathName.Find(_T("file:\\"));
+		if (0 == lIndex)
+			sPathName		=	sPathName.Mid(6);
+
+		DWORD dwLength		=	0;
+		CString filePath;
+
+		if (UnescapeURL (sPathName, filePath.GetBuffer(4096), &dwLength, 4096))
+			sPathName		=	filePath;
+
+		filePath.ReleaseBuffer();
+
+		return sPathName;
+	}
+
+	static inline CString ResourceFileSystemPathXml (const CString& toPath)
+	{
+		CString sPathName	=	ResourceFileSystemPath (toPath);			
+
+		sPathName.Replace ( _T("&"),  _T("&amp;") );
+		sPathName.Replace ( _T("'"),  _T("&apos;") );
+		sPathName.Replace ( _T("<"),  _T("&lt;") );
+		sPathName.Replace ( _T(">"),  _T("&gt;") );
+		sPathName.Replace ( _T("\""), _T("&quot;") );
+
+		return sPathName;
+	}
+}