From f6ca336621ef08da783c3a133bece40ce411d16a Mon Sep 17 00:00:00 2001
From: Oleg Korshul <Oleg.Korshul@onlyoffice.com>
Date: Wed, 28 May 2025 23:27:08 +0300
Subject: [PATCH] Fix bug 73852

---
 ChromiumBasedEditors/lib/src/fileconverter.h |  7 +++
 ChromiumBasedEditors/lib/src/filelocker.cpp  | 51 +++++++++++++++++---
 ChromiumBasedEditors/lib/src/filelocker.h    |  2 +
 3 files changed, 54 insertions(+), 6 deletions(-)

diff --git a/ChromiumBasedEditors/lib/src/fileconverter.h b/ChromiumBasedEditors/lib/src/fileconverter.h
index 1a01a846..6d6888ea 100644
--- a/ChromiumBasedEditors/lib/src/fileconverter.h
+++ b/ChromiumBasedEditors/lib/src/fileconverter.h
@@ -611,8 +611,12 @@ public:
 			}
 		}
 
+		bool bIsCopied = false;
 		if (sLocalFilePath != sDestinationPath)
+		{
 			NSFile::CFileBinary::Copy(sLocalFilePath, sDestinationPath);
+			bIsCopied = true;
+		}
 
 		bool bIsTestFile = true;
 		if (!NSFile::CFileBinary::Exists(sDestinationPath))
@@ -636,6 +640,9 @@ public:
 			return 0;
 		}
 
+		if (bIsCopied && (m_oInfo.m_nCurrentFileFormat == AVS_OFFICESTUDIO_FILE_CROSSPLATFORM_PDF || m_oInfo.m_nCurrentFileFormat == AVS_OFFICESTUDIO_FILE_CROSSPLATFORM_PDFA))
+			NSSystem::CFileLocker::RemoveRestrictionFlags(sDestinationPath);
+
 		std::wstring sNameInfo = m_oInfo.m_sRecoveryDir + L"/asc_name.info";
 		if (NSFile::CFileBinary::Exists(sNameInfo))
 			NSFile::CFileBinary::Remove(sNameInfo);
diff --git a/ChromiumBasedEditors/lib/src/filelocker.cpp b/ChromiumBasedEditors/lib/src/filelocker.cpp
index 2938c464..c9594656 100644
--- a/ChromiumBasedEditors/lib/src/filelocker.cpp
+++ b/ChromiumBasedEditors/lib/src/filelocker.cpp
@@ -186,6 +186,7 @@ namespace NSSystem
 
 #include <fcntl.h>
 #include <unistd.h>
+#include <sys/stat.h>
 
 namespace NSSystem
 {
@@ -536,19 +537,19 @@ namespace NSSystem
 
 	CFileLocker* CFileLocker::Create(const std::wstring& file)
 	{
-    #ifdef _WIN32
+	#ifdef _WIN32
 		return new NSSystem::CFileLockerWin(file);
-    #endif
+	#endif
 
-    #ifdef _LINUX
-    #ifndef _MAC
+	#ifdef _LINUX
+	#ifndef _MAC
 		if (IsLocalFile(file))
 			return new NSSystem::CFileLockerFCNTL(file);
 		else
 			return new NSSystem::CFileLockerGIO(file);
-    #else
+	#else
 		return new NSSystem::CFileLockerEmpty(file);
-    #endif
+	#endif
     #endif
 
 		// ERROR!!!
@@ -572,4 +573,42 @@ namespace NSSystem
 	{
 		return CHandlesMonitor::Instance().IsExist(file);
 	}
+
+	bool CFileLocker::RemoveRestrictionFlags(const std::wstring& file)
+	{
+#ifdef _LINUX
+		std::wstring fileA = U_TO_UTF8(file);
+		struct stat fileStat;
+		if (stat(fileA.c_str, &fileStat) != 0)
+		{
+			return false;
+		}
+
+		if (fileStat.st_mode & S_IWUSR)
+			return true;
+
+		if (chmod(filename, fileStat.st_mode | S_IWUSR) != 0)
+		{
+			return false;
+		}
+		return true;
+#else
+		DWORD attrs = GetFileAttributesW(file.c_str());
+		if (attrs == INVALID_FILE_ATTRIBUTES)
+		{
+			return false;
+		}
+
+		if (0 == (attrs & FILE_ATTRIBUTE_READONLY))
+			return true;
+
+		if (!SetFileAttributesW(file.c_str(), attrs &= ~FILE_ATTRIBUTE_READONLY))
+		{
+			return false;
+		}
+
+		return true;
+#endif
+
+	}
 }
diff --git a/ChromiumBasedEditors/lib/src/filelocker.h b/ChromiumBasedEditors/lib/src/filelocker.h
index 2eb87e29..83af91bf 100644
--- a/ChromiumBasedEditors/lib/src/filelocker.h
+++ b/ChromiumBasedEditors/lib/src/filelocker.h
@@ -68,6 +68,8 @@ namespace NSSystem
 		static CFileLocker* Create(const std::wstring& file);
 
 		static bool IsHandled(const std::wstring& file);
+
+		static bool RemoveRestrictionFlags(const std::wstring& file);
 	};
 }