SafeMode: Restart goes into safe mode again

Looks like the XRestartManager keeps all command line arguments when
restarting, so it also keeps --safe-mode.

Solution is to add a flag file when restarting from safe mode,
to prevent going into safe mode again.

Change-Id: I9820d3ccbddf98b0bf6132f254c989f52ea5e808
Reviewed-on: https://gerrit.libreoffice.org/31913
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
Tested-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

desktop/source/app/app.cxx

@@ -560,7 +560,10 @@ void Desktop::Init()
 
     // Check whether safe mode is enabled
     CommandLineArgs& rCmdLine = GetCommandLineArgs();
-    if (rCmdLine.IsSafeMode() || sfx2::SafeMode::hasFlag())
+    // Check if we are restarting from safe mode - in that case we don't want to enter it again
+    if (sfx2::SafeMode::hasRestartFlag())
+        sfx2::SafeMode::removeRestartFlag();
+    else if (rCmdLine.IsSafeMode() || sfx2::SafeMode::hasFlag())
         Application::EnableSafeMode();
 
     // When we are in SafeMode we need to do changes before the configuration

include/sfx2/safemode.hxx

@@ -40,9 +40,31 @@ public:
      */
     static bool removeFlag();
 
+    /**
+     * Write a flag to the user profile indicating that we are currently restarting from safe mode -
+     * that means we don't want to enter safe mode again.
+     *
+     * @return Whether the file could be written successfully
+     */
+    static bool putRestartFlag();
+
+    /**
+     * Check the existence of the restart flag file.
+     *
+     * @return Whether the restart flag file exists
+     */
+    static bool hasRestartFlag();
+
+    /**
+     * Remove the restart flag file.
+     *
+     * @return Whether the flag file could be removed successfully
+     */
+    static bool removeRestartFlag();
+
 private:
     /** Returns the path of the safe mode flag file.*/
-    static OUString getFileName();
+    static OUString getFilePath(const OUString& sFilename);
 };
 
 }

sfx2/source/safemode/safemode.cxx

@@ -20,7 +20,7 @@ namespace sfx2 {
 
 bool SafeMode::putFlag()
 {
-    File safeModeFile(getFileName());
+    File safeModeFile(getFilePath("safemode"));
     if (safeModeFile.open(osl_File_OpenFlag_Create) == FileBase::E_None)
     {
         safeModeFile.close();
@@ -30,7 +30,7 @@ bool SafeMode::putFlag()
 }
 bool SafeMode::hasFlag()
 {
-    File safeModeFile(getFileName());
+    File safeModeFile(getFilePath("safemode"));
     if (safeModeFile.open(osl_File_OpenFlag_Read) == FileBase::E_None)
     {
         safeModeFile.close();
@@ -40,17 +40,42 @@ bool SafeMode::hasFlag()
 }
 bool SafeMode::removeFlag()
 {
-    return File::remove(getFileName()) == FileBase::E_None;
+    return File::remove(getFilePath("safemode")) == FileBase::E_None;
 }
 
-OUString SafeMode::getFileName()
+bool SafeMode::putRestartFlag()
+{
+    File restartFile(getFilePath("safemode_restart"));
+    if (restartFile.open(osl_File_OpenFlag_Create) == FileBase::E_None)
+    {
+        restartFile.close();
+        return true;
+    }
+    return false;
+}
+bool SafeMode::hasRestartFlag()
+{
+    File restartFile(getFilePath("safemode_restart"));
+    if (restartFile.open(osl_File_OpenFlag_Read) == FileBase::E_None)
+    {
+        restartFile.close();
+        return true;
+    }
+    return false;
+}
+bool SafeMode::removeRestartFlag()
+{
+    return File::remove(getFilePath("safemode_restart")) == FileBase::E_None;
+}
+
+OUString SafeMode::getFilePath(const OUString& sFilename)
 {
     OUString url("${$BRAND_BASE_DIR/" LIBO_ETC_FOLDER "/" SAL_CONFIGFILE("bootstrap") ":UserInstallation}/");
     rtl::Bootstrap::expandMacros(url);
 
     OUString aProfilePath;
     FileBase::getSystemPathFromFileURL(url, aProfilePath);
-    FileBase::getAbsoluteFileURL(url, "safemode", aProfilePath);
+    FileBase::getAbsoluteFileURL(url, sFilename, aProfilePath);
     return aProfilePath;
 }
 

svx/source/dialog/SafeModeDialog.cxx

@@ -326,6 +326,7 @@ IMPL_LINK(SafeModeDialog, DialogBtnHdl, Button*, pBtn, void)
     }
     else if (pBtn == mpBtnRestart.get())
     {
+        sfx2::SafeMode::putRestartFlag();
         Close();
         applyChanges();
     }