bool FilterLibrary::IsWritable() const
{
/*
* If wheter this is a new library, or the current library file does not
* exist, or it is a read-only file, then this library is not writable.
*/
if ( filePath.IsEmpty() )
return false;
if ( !File::Exists( filePath ) )
return false;
if ( File::IsReadOnly( filePath ) )
return false;
/*
* Do not allow rewriting the default filter collection.
*/
#ifdef __PCL_WINDOWS
// Windows filesystem is case-insensitive
if ( filePath.CompareIC( DefaultLibraryPath() ) == 0 )
#else
if ( filePath == DefaultLibraryPath() )
#endif
return false;
/*
* Attempt to create a file on the same directory where we have the current
* filter collection file. If we can create a file, then the current filter
* library is (should be) writable.
*/
try
{
String dirPath = File::ExtractDrive( filePath ) + File::ExtractDirectory( filePath );
if ( !File::DirectoryExists( dirPath ) ) // ?? cannot happen
return false;
if ( !dirPath.EndsWith( '/' ) )
dirPath += '/';
String testFileName = dirPath + "test_file";
if ( File::Exists( testFileName ) )
{
String baseName = testFileName;
unsigned i = 0;
do
testFileName = baseName + String( ++i );
while ( File::Exists( testFileName ) );
}
File f;
f.CreateForWriting( testFileName );
f.Close();
File::Remove( testFileName );
return true;
}
catch ( ... )
{
return false;
}
}
void FilterLibrary::SaveAs( const String& _filePath )
{
File f;
f.CreateForWriting( _filePath );
if ( !filters.IsEmpty() )
for ( filter_list::const_iterator i = filters.Begin(); ; )
{
f.OutText( i->ToSource() );
if ( ++i == filters.End() )
break;
f.OutTextLn( IsoString() );
}
f.Close();
filePath = _filePath;
}
bool PixInsightX11Installer::DoInstall()
{
ShowLogo();
RootRequired();
if ( !File::DirectoryExists( m_sourceDir ) )
throw Error( "The source installation directory does not exist: " + m_sourceDir );
if ( !File::DirectoryExists( m_installDesktopDir ) )
throw Error( "The desktop entry installation directory does not exist: " + m_installDesktopDir );
if ( !File::DirectoryExists( m_installIconsDir ) )
throw Error( "The application icons installation directory does not exist: " + m_installIconsDir );
if ( !File::Exists( m_sourceIcon16x16File ) ||
!File::Exists( m_sourceIcon24x24File ) ||
!File::Exists( m_sourceIcon32x32File ) ||
!File::Exists( m_sourceIcon48x48File ) ||
!File::Exists( m_sourceIcon64x64File ) ||
!File::Exists( m_sourceIcon128x128File ) ||
!File::Exists( m_sourceIcon256x256File ) )
{
throw Error( "One or more application icons are missing in the source installation directory. "
"Unpack a valid installation archive and try again." );
}
std::cout <<
"\nPixInsight will be installed with the following parameters:"
"\n"
"\nSource installation directory ... " << m_sourceDir <<
"\nPixInsight Core application ..... " << m_installDir <<
"\nApplication desktop entry ....... " << m_desktopEntryFile <<
"\nApplication icons directory ..... " << m_installIconsDir <<
"\nCreate /bin launcher script ..... " << (m_createBinLauncher ? "yes" : "no") <<
"\nRemove previous installation .... " << (m_removePrevious ? "yes" : "no") <<
"\n";
if ( !AskForConfirmation() )
return false;
std::cout << "\nPlease wait while PixInsight is being installed...\n" << std::flush;
// Backup an existing previous installation
String oldDir = RenameOldInstallationDirectory( m_installDir );
// Copy the PixInsight Core application
File::CreateDirectory( m_installDir );
CopyFiles( m_installDir, m_sourceDir );
// Application launcher script on /bin
if ( m_createBinLauncher )
{
File f;
f.CreateForWriting( m_binLauncherFile );
#ifdef __PCL_FREEBSD
f.OutTextLn( "#!/usr/local/bin/bash" );
#else
f.OutTextLn( "#!/bin/bash" );
#endif
f.OutTextLn( m_installDir.ToUTF8() + "/bin/PixInsight.sh $*" );
f.Close();
// Make it executable
IsoString binLauncherFile8 = m_binLauncherFile.ToUTF8();
if ( chmod( binLauncherFile8.c_str(), S_IRUSR|S_IWUSR|S_IXUSR |
S_IRGRP |S_IXGRP |
S_IROTH |S_IXOTH ) != 0 ) // rwxr-xr-x
throw Error( "Failed to chmod the /bin launcher script: " + m_binLauncherFile );
}
// Write the desktop entry file
{
File f;
f.CreateForWriting( m_desktopEntryFile );
f.OutTextLn( "[Desktop Entry]" );
f.OutTextLn( "Encoding=UTF-8" );
f.OutTextLn( "Name=PixInsight" );
f.OutTextLn( "GenericName=Image Processing Software" );
f.OutTextLn( "Comment=Advanced image processing platform" );
f.OutTextLn( "Exec=" + m_installDir.ToUTF8() + "/bin/PixInsight.sh %F" );
f.OutTextLn( "Terminal=false" );
f.OutTextLn( "MultipleArgs=true" );
f.OutTextLn( "Type=Application" );
f.OutTextLn( "Icon=" + m_installDir.ToUTF8() + "/bin/pixinsight-icon.256.png" );
f.OutTextLn( "Categories=Application;Graphics;ImageProcessing;RasterGraphics;Photography;Astronomy;" );
f.OutTextLn( "MimeType=image/fits;application/fits;"
"image/tiff;application/tiff;image/tif;application/tif;"
"image/png;application/png;application/x-png;"
"image/jpeg;application/jpeg;image/jpg;application/jpg;" );
f.Close();
}
// Copy application icons
if ( File::DirectoryExists( m_installIconsDir + "/16x16/apps" ) )
CopyFile( m_installIconsDir + "/16x16/apps/PixInsight.png", m_sourceIcon16x16File );
if ( File::DirectoryExists( m_installIconsDir + "/24x24/apps" ) )
CopyFile( m_installIconsDir + "/24x24/apps/PixInsight.png", m_sourceIcon24x24File );
if ( File::DirectoryExists( m_installIconsDir + "/32x32/apps" ) )
CopyFile( m_installIconsDir + "/32x32/apps/PixInsight.png", m_sourceIcon32x32File );
if ( File::DirectoryExists( m_installIconsDir + "/48x48/apps" ) )
CopyFile( m_installIconsDir + "/48x48/apps/PixInsight.png", m_sourceIcon48x48File );
if ( File::DirectoryExists( m_installIconsDir + "/64x64/apps" ) )
CopyFile( m_installIconsDir + "/64x64/apps/PixInsight.png", m_sourceIcon64x64File );
if ( File::DirectoryExists( m_installIconsDir + "/128x128/apps" ) )
CopyFile( m_installIconsDir + "/128x128/apps/PixInsight.png", m_sourceIcon128x128File );
if ( File::DirectoryExists( m_installIconsDir + "/256x256/apps" ) )
CopyFile( m_installIconsDir + "/256x256/apps/PixInsight.png", m_sourceIcon256x256File );
// If requested, remove a previous installation.
if ( !oldDir.IsEmpty() )
if ( m_removePrevious )
{
RemoveDirectory( oldDir );
std::cout << "\n* Previous PixInsight installation removed.\n";
}
else
{
std::cout <<
"\n* A previous PixInsight installation has been left on the following directory:"
"\n" << oldDir << "\n";
}
// Set the setuid and setgid bits of the main updater program. The updater
// requires elevated privileges.
String updaterFilePath = m_installDir + "/bin/PixInsightUpdater";
IsoString updaterFilePath8 = updaterFilePath.ToUTF8();
if ( chmod( updaterFilePath8.c_str(), S_IRUSR|S_IWUSR|S_IXUSR |
S_IRGRP |S_IXGRP |
S_IROTH |S_IXOTH |
S_ISUID|S_ISGID ) != 0 ) // rwsr-xr-x
throw Error( "Failed to set the setuid/setgid bits of the updater program: " + updaterFilePath );
std::cout << "\n* PixInsight installation completed.\n\n";
return true;
}