init III

Perl OTRS/Kernel/System/VirtualFS/FS.pm

@@ -0,0 +1,239 @@
+# --
+# Copyright (C) 2001-2019 OTRS AG, https://otrs.com/
+# --
+# This software comes with ABSOLUTELY NO WARRANTY. For details, see
+# the enclosed file COPYING for license information (GPL). If you
+# did not receive this file, see https://www.gnu.org/licenses/gpl-3.0.txt.
+# --
+
+package Kernel::System::VirtualFS::FS;
+
+use strict;
+use warnings;
+
+our @ObjectDependencies = (
+    'Kernel::Config',
+    'Kernel::System::Log',
+    'Kernel::System::Main',
+);
+
+sub new {
+    my ( $Type, %Param ) = @_;
+
+    # allocate new hash for object
+    my $Self = {};
+    bless( $Self, $Type );
+
+    # get data dir
+    $Self->{DataDir}    = $Kernel::OM->Get('Kernel::Config')->Get('Home') . '/var/virtualfs';
+    $Self->{Permission} = '660';
+
+    # create data dir
+    if ( !-d $Self->{DataDir} ) {
+        mkdir $Self->{DataDir} || die $!;
+    }
+
+    # check write permissions
+    if ( !-w $Self->{DataDir} ) {
+
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'notice',
+            Message  => "Can't write $Self->{DataDir}! try: \$OTRS_HOME/bin/otrs.SetPermissions.pl!",
+        );
+        die "Can't write $Self->{DataDir}! try: \$OTRS_HOME/bin/otrs.SetPermissions.pl!";
+    }
+
+    # config (not used right now)
+    $Self->{Compress} = 0;
+    $Self->{Crypt}    = 0;
+
+    return $Self;
+}
+
+sub Read {
+    my ( $Self, %Param ) = @_;
+
+    # check needed stuff
+    for (qw(BackendKey Mode)) {
+        if ( !$Param{$_} ) {
+            $Kernel::OM->Get('Kernel::System::Log')->Log(
+                Priority => 'error',
+                Message  => "Need $_!",
+            );
+            return;
+        }
+    }
+
+    my $Attributes = $Self->_BackendKeyParse(%Param);
+
+    my $Content = $Kernel::OM->Get('Kernel::System::Main')->FileRead(
+        Directory => $Self->{DataDir} . $Attributes->{DataDir},
+        Filename  => $Attributes->{Filename},
+        Mode      => $Param{Mode},
+    );
+
+    # uncompress (in case)
+    if ( $Attributes->{Compress} ) {
+
+        # $Content = ...
+    }
+
+    # decrypt (in case)
+    if ( $Attributes->{Crypt} ) {
+
+        # $Content = ...
+    }
+
+    return if !$Content;
+    return $Content;
+}
+
+sub Write {
+    my ( $Self, %Param ) = @_;
+
+    # check needed stuff
+    for (qw(Content Filename Mode)) {
+        if ( !$Param{$_} ) {
+            $Kernel::OM->Get('Kernel::System::Log')->Log(
+                Priority => 'error',
+                Message  => "Need $_!",
+            );
+            return;
+        }
+    }
+
+    # compress (in case)
+    if ( $Self->{Compress} ) {
+
+        # $Param{Content} = ...
+    }
+
+    # crypt (in case)
+    if ( $Self->{Crypt} ) {
+
+        # $Param{Content} = ...
+    }
+
+    # get main object
+    my $MainObject = $Kernel::OM->Get('Kernel::System::Main');
+
+    my $MD5 = $MainObject->FilenameCleanUp(
+        Filename => $Param{Filename},
+        Type     => 'MD5',
+    );
+
+    my $DataDir = '';
+    my @Dirs    = $Self->_SplitDir( Filename => $MD5 );
+
+    DIRECTORY:
+    for my $Dir (@Dirs) {
+
+        $DataDir .= '/' . $Dir;
+
+        next DIRECTORY if -e $Self->{DataDir} . $DataDir;
+        next DIRECTORY if mkdir $Self->{DataDir} . $DataDir;
+
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => "Can't create $Self->{DataDir}$DataDir: $!",
+        );
+
+        return;
+    }
+
+    # write article to fs
+    my $Filename = $MainObject->FileWrite(
+        Directory  => $Self->{DataDir} . $DataDir,
+        Filename   => $MD5,
+        Mode       => $Param{Mode},
+        Content    => $Param{Content},
+        Permission => $Self->{Permission},
+    );
+
+    return if !$Filename;
+
+    my $BackendKey = $Self->_BackendKeyGenerate(
+        Filename => $Filename,
+        DataDir  => $DataDir,
+        Compress => $Self->{Compress},
+        Crypt    => $Self->{Crypt},
+        Mode     => $Param{Mode},
+    );
+
+    return $BackendKey;
+}
+
+sub Delete {
+    my ( $Self, %Param ) = @_;
+
+    # check needed stuff
+    if ( !$Param{BackendKey} ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => "Need $_!",
+        );
+        return;
+    }
+
+    my $Attributes = $Self->_BackendKeyParse(%Param);
+
+    return $Kernel::OM->Get('Kernel::System::Main')->FileDelete(
+        Directory => $Self->{DataDir} . $Attributes->{DataDir},
+        Filename  => $Attributes->{Filename},
+    );
+}
+
+sub _BackendKeyGenerate {
+    my ( $Self, %Param ) = @_;
+
+    my $BackendKey = '';
+    for my $Key ( sort keys %Param ) {
+        $BackendKey .= "$Key=$Param{$Key};";
+    }
+
+    return $BackendKey;
+}
+
+sub _BackendKeyParse {
+    my ( $Self, %Param ) = @_;
+
+    # check needed stuff
+    if ( !$Param{BackendKey} ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => "Need $_!",
+        );
+        return;
+    }
+
+    my @Pairs = split /;/, $Param{BackendKey};
+
+    my %Attributes;
+    for my $Pair (@Pairs) {
+        my ( $Key, $Value ) = split /=/, $Pair;
+        $Attributes{$Key} = $Value;
+    }
+
+    return \%Attributes;
+}
+
+sub _SplitDir {
+    my ( $Self, %Param ) = @_;
+
+    # check needed stuff
+    if ( !$Param{Filename} ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'error',
+            Message  => "Need $_!",
+        );
+        return;
+    }
+
+    my @Dir;
+    $Dir[0] = substr $Param{Filename}, 0, 2;
+    $Dir[1] = substr $Param{Filename}, 2, 2;
+
+    return ( $Dir[0], $Dir[1] );
+}
+
+1;