From ee43823179ee627ac16ea9da8168e5f1bf9619c0 Mon Sep 17 00:00:00 2001
From: "Jannis M. Hoffmann" <jannis.hoffmann@rwth-aachen.de>
Date: Thu, 29 Oct 2020 12:13:04 +0100
Subject: Initial commit; Stable version

---
 lib/JWebmail/Plugin/Helper.pm                | 448 +++++++++++++++++++++++++++
 lib/JWebmail/Plugin/I18N.pm                  | 212 +++++++++++++
 lib/JWebmail/Plugin/I18N2.pm                 | 185 +++++++++++
 lib/JWebmail/Plugin/INIConfig.pm             | 136 ++++++++
 lib/JWebmail/Plugin/ServerSideSessionData.pm | 147 +++++++++
 5 files changed, 1128 insertions(+)
 create mode 100644 lib/JWebmail/Plugin/Helper.pm
 create mode 100644 lib/JWebmail/Plugin/I18N.pm
 create mode 100644 lib/JWebmail/Plugin/I18N2.pm
 create mode 100644 lib/JWebmail/Plugin/INIConfig.pm
 create mode 100644 lib/JWebmail/Plugin/ServerSideSessionData.pm

(limited to 'lib/JWebmail/Plugin')

diff --git a/lib/JWebmail/Plugin/Helper.pm b/lib/JWebmail/Plugin/Helper.pm
new file mode 100644
index 0000000..5e557d1
--- /dev/null
+++ b/lib/JWebmail/Plugin/Helper.pm
@@ -0,0 +1,448 @@
+package JWebmail::Plugin::Helper;
+
+use Mojo::Base 'Mojolicious::Plugin';
+
+use POSIX qw(floor round log ceil);
+use MIME::Base64;
+use Encode;
+use Mojo::Util 'xml_escape';
+use List::Util qw(min max);
+
+use constant TRUE_RANDOM => eval { require Crypt::Random; Crypt::Random->import('makerandom_octet'); 1 };
+use constant HMAC => eval { require Digest::HMAC_MD5; Digest::HMAC_MD5->import('hmac_md5'); 1 };
+
+### filter and checks for mojo validator
+
+sub mail_line {
+    my ($v, $name, $value, @args) = @_;
+
+    my $mail_addr = qr/\w+\@\w+\.\w+/;
+    # my $unescaped_quote = qr/"(*nlb:\\)/; # greater perl version required
+    my $unescaped_quote = qr/"(?<!:\\)/;
+
+    return $value !~ /^(
+        (
+            (
+                (
+                    $unescaped_quote.*?$unescaped_quote
+                ) | (
+                    [\w\s]*
+                )
+            )
+            \s*<$mail_addr>
+        ) | (
+            $mail_addr
+        ))$
+    /xno;
+}
+
+
+sub filter_empty_upload {
+    my ($v, $name, $value) = @_;
+
+    return $value->filename ? $value : undef;
+}
+
+### template formatting functions
+
+sub print_sizes10 {
+    my $var = shift;
+    if ($var == 0) { return '0 Byte'; }
+
+    my $i = floor(((log($var)/log(10))+1e-5) / 3);
+    my $expo = $i * 3;
+
+    my @PREFIX;
+    $PREFIX[0] = 'Byte';
+    $PREFIX[1] = 'kByte';
+    $PREFIX[2] = 'MByte';
+    $PREFIX[3] = 'GByte';
+    $PREFIX[4] = 'TByte';
+    $PREFIX[5] = 'PByte';
+
+    return sprintf('%.0f %s', $var / (10**$expo), $PREFIX[$i]);
+}
+
+
+sub print_sizes2 {
+    my $var = shift;
+    if ($var == 0) { return '0 Byte'; }
+
+    my $i = floor(((log($var)/log(2))+1e-5) / 10);
+    my $expo = $i * 10;
+    my %PREFIX = (
+        0 => 'Byte',
+        1 => 'KiByte',
+        2 => 'MiByte',
+        3 => 'GiByte',
+        4 => 'TiByte',
+        5 => 'PiByte',
+    );
+    my $pref = $PREFIX{$i};
+    return round($var / (2**$expo)) . " $pref";
+}
+
+### mime type html render functions
+
+my $render_text_plain = sub {
+    my ($c, $content) = @_;
+
+    $content = xml_escape($content);
+    $content =~ s/\n/<br>/g;
+
+    return $content;
+};
+
+
+my $render_text_html = sub {
+    my $c_ = shift;
+
+    return '<iframe src="' . $c_->url_for('rawid', id => $c_->stash('id'))->query(body => 'html') . '" class=html-mail />';
+};
+
+
+our %MIME_Render_Subs = (
+    'text/plain' => $render_text_plain,
+    'text/html'  => $render_text_html,
+);
+
+
+sub mime_render {
+    my ($c, $enc, $cont) = @_;
+
+    my $renderer = $MIME_Render_Subs{$enc};
+    return '' unless defined $renderer;
+    return $renderer->($c, $cont);
+};
+
+### session password handling
+
+use constant { S_PASSWD => 'pw', S_OTP_S3D_PW => 'otp_s3d_pw' };
+
+sub _rand_data {
+    my $len = shift;
+
+    return makerandom_octet(Length => $len, Strength => 0);
+}
+
+sub _pseudo_rand_data {
+    my $len = shift;
+
+    my $res = '';
+    for (0..$len-1) {
+        vec($res, $_, 8) = int rand 256;
+    }
+
+    return $res;
+}
+
+sub session_passwd {
+    my ($c, $passwd) = @_;
+
+    warn_cram($c);
+    warn_crypt($c);
+
+    if (defined $passwd) { # set
+        if ( HMAC && lc($c->config->{'session'}{secure} || 'none') eq 'cram' ) {
+            $c->session(S_PASSWD() => $passwd ? encode_base64(hmac_md5($passwd, $c->app->secrets->[0]), '') : '');
+        }
+        elsif (lc($c->config->{'session'}->{secure} || 'none') eq 's3d') {
+            unless ($passwd) {
+                $c->s3d(S_PASSWD, '');
+                delete $c->session->{S_OTP_S3D_PW()};
+                return;
+            }
+            die "'$passwd' contains invalid character \\n" if $passwd =~ /\n/; 
+            if (length $passwd < 20) {
+                $passwd .= "\n" . " " x (20 - length($passwd) - 1);
+            }
+            my $rand_bytes = TRUE_RANDOM ? _rand_data(length $passwd) : _pseudo_rand_data(length $passwd);
+            $c->s3d(S_PASSWD, encode_base64(encode('UTF-8', $passwd) ^ $rand_bytes, ''));
+            $c->session(S_OTP_S3D_PW, encode_base64($rand_bytes, ''));
+        }
+        else {
+            $c->session(S_PASSWD() => $passwd);
+        }
+    }
+    else { # get
+        if ( HMAC && lc($c->config->{'session'}->{secure} || 'none') eq 'cram' ) {
+            return ($c->app->secrets->[0], $c->session(S_PASSWD));
+        }
+        elsif (lc($c->config->{'session'}->{secure} || 'none') eq 's3d') {
+            my $pw = decode_base64($c->s3d(S_PASSWD) || '');
+            my $otp = decode_base64($c->session(S_OTP_S3D_PW) || '');
+            my ($res) = split "\n", decode('UTF-8', $pw ^ $otp), 2;
+            return $res;
+        }
+        else {
+            return $c->session(S_PASSWD);
+        }
+    }
+}
+
+sub warn_cram {
+    my $c = shift;
+
+    state $once = 0;
+
+    if ( !HMAC && !$once && lc($c->config->{'session'}->{secure} || 'none') eq 'cram' ) {
+        $c->log->warn("cram requires Digest::HMAC_MD5. Falling back to 'none'.");
+    }
+
+    $once = 1;
+}
+
+sub warn_crypt {
+    my $c = shift;
+
+    state $once = 0;
+
+    if ( !TRUE_RANDOM && !$once && lc($c->config->{'session'}->{secure} || 'none') eq 's3d' ) {
+        $c->log->warn("Falling back to pseudo random generation. Please install Crypt::Random");
+    }
+
+    $once = 1;
+}
+
+### pagination
+
+sub _clamp {
+    my ($x, $y, $z) = @_;
+
+    die '!($x <= $z)' unless $x <= $z;
+
+    if ($x <= $y && $y <= $z) {
+        return $y;
+    }
+
+    return $x if ($y < $x);
+    return $z if ($z < $y);
+}
+
+sub _paginate {
+    my %args = @_;
+
+    my $first_item  = $args{first_item};
+    my $page_size   = $args{page_size} || 1;
+    my $total_items = $args{total_items};
+
+    my $first_item1 = $total_items ? $first_item+1 : 0;
+
+    my $current_page = ceil($first_item/$page_size);
+    my $total_pages  = ceil($total_items/$page_size);
+
+    my $page = sub {
+        my $page_ = shift;
+        return [0, 0] unless $total_items;
+        $page_ = _clamp(0, $page_, $total_pages-1);
+        [_clamp(1, $page_*$page_size + 1, $total_items), _clamp(1, ($page_+1)*$page_size, $total_items)]
+    };
+
+    return (
+        first_item  => $first_item1,
+        last_item   => _clamp($first_item1, $first_item + $page_size, $total_items),
+        total_items => $total_items,
+        page_size   => $page_size,
+
+        total_pages  => $total_pages,
+        current_page => $current_page + 1,
+
+        first_page => $page->(0),
+        prev_page  => $page->($current_page-1),
+        next_page  => $page->($current_page+1),
+        last_page  => $page->($total_pages-1),
+    );
+}
+
+sub paginate {
+    my $c = shift;
+    my $count = shift;
+
+    my $v = $c->validation;
+    my $start = $v->optional('start')->num(0, undef)->param // 0;
+    my $psize = $v->optional('page_size')->num(1, undef)->param // 50;
+
+    $start = _clamp(0, $start, max($count-1, 0));
+    my $end = _clamp($start, $start+$psize-1, max($count-1, 0));
+
+    $c->stash(_paginate(first_item => $start, page_size => $psize, total_items => $count));
+
+    return $start, $end;
+}
+
+### registering
+
+sub register {
+    my ($self, $app, $conf) = @_;
+
+    if (ref $conf->{import} eq 'ARRAY' and my @import = @{ $conf->{import} }) {
+        no warnings 'experimental::smartmatch';
+
+        # selective import
+        $app->helper(print_sizes10  => sub { shift; print_sizes10(@_) })
+            if 'print_sizes10' ~~ @import;
+        $app->helper(print_sizes2  => sub { shift; print_sizes2(@_) })
+            if 'print_sizes2' ~~ @import;
+        $app->helper(mime_render    => \&mime_render)
+            if 'mime_render' ~~ @import;
+        $app->helper(session_passwd => \&session_passwd)
+            if 'session_passwd' ~~ @import;
+        $app->helper(paginate => \&paginate)
+            if 'paginate' ~~ @import;
+        $app->validator->add_check(mail_line => \&mail_line)
+            if 'mail_line' ~~ @import;
+        $app->validator->add_filter(non_empty_ul => \&filter_empty_upload)
+            if 'non_empty_ul' ~~ @import;
+    }
+    elsif (!$conf->{import}) { # default imports
+        $app->helper(print_sizes10  => sub { shift; print_sizes10(@_) });
+        $app->helper(mime_render    => \&mime_render);
+        $app->helper(session_passwd => \&session_passwd);
+        $app->helper(paginate       => \&paginate);
+
+        $app->validator->add_check(mail_line => \&mail_line);
+
+        $app->validator->add_filter(non_empty_ul => \&filter_empty_upload);
+    }
+}
+
+
+1
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Helper - Functions used as helpers in controller and templates and additional validator checks and filters
+
+=head1 SYNOPSIS
+
+  use Mojo::Base 'Mojolicious';
+
+  use JWebmail::Plugin::Helper;
+
+  sub startup($self) {
+    $self->helper(mime_render => \&JWebmail::Plugin::Helper::mime_render);
+  }
+
+  # or
+
+  $app->plugin('Helper');
+
+=head1 DESCRIPTION
+
+L<JWebmail::Helper> provides useful helper functions and validator cheks and filter for
+L<JWebmail::Controller::All> and various templates.
+
+=head1 FUNCTIONS
+
+=head2 mail_line
+
+A check for validator used in mail headers for fields containing email addresses.
+
+  $app->validator->add_check(mail_line => \&JWebmail::Plugin::Helper::mail_line);
+
+  my $v = $c->validation;
+  $v->required('to', 'not_empty')->check('mail_line');
+
+=head2 filter_empty_upload
+
+A filter for validator used to filter out empty uploads.
+
+  $app->validator->add_filter(non_empty_ul => \&JWebmail::Plugin::Helper::filter_empty_upload);
+
+  my $v = $c->validation;
+  $v->required('file_upload', 'non_empty_ul');
+
+=head2 print_sizes10
+
+A helper for templates used to format byte sizes.
+
+  $app->helper(print_sizes10 => sub { shift; JWebmail::Plugin::Helper::print_sizes10(@_) });
+
+  %= print_sizes10 12345 # => 12 kB
+
+=head2 print_sizes2
+
+A helper for templates used to format byte sizes.
+
+  %= print_sizes10 12345 # => 12 KiB
+
+This is not registered by default.
+
+=head2 paginate
+
+A helper for calculationg page bounds.
+
+Takes the total number of items as argument.
+
+Reads in 'start' and 'page_size' query arguments.
+start is 0 based.
+
+Returns the calculated start and end points as 0 based inclusive range.
+
+Sets the stash values (all 1 based inclusive):
+
+  first_item
+  last_item
+  total_items
+  page_size
+  total_pages
+  current_page
+  first_page
+  prev_page
+  next_page
+  last_page
+
+=head2 mime_render
+
+A helper for templates used to display the content of a mail for the browser.
+The output is valid html and should not be escaped.
+
+  $app->helper(mime_render => \&JWebmail::Plugin::Helper::mime_render);
+
+  %== mime_render 'text/plain' $content
+
+=head2 session_passwd
+
+A helper used to set and get the session password. The behaivour can be altered by
+setting the config variable C<< session => {secure => 's3d'} >>.
+
+  $app->helper(session_passwd => \&JWebmail::Plugin::Helper::session_passwd);
+
+  $c->session_passwd('s3cret');
+
+Currently the following modes are supported:
+
+=over 6
+
+=item none 
+
+password is plainly stored in session cookie
+
+=item cram 
+
+challenge response authentication mechanism uses the C<< $app->secret->[0] >> as nonce.
+This is optional if Digest::HMAC_MD5 is installed.
+
+=item s3d 
+
+data is stored on the server. Additionally the password is encrypted by an one-time-pad that is stored in the user cookie.
+
+=back
+
+=head1 DEPENDENCIES
+
+Mojolicious, Crypt::Random and optianally Digest::HMAC_MD5.
+
+=head1 SEE ALSO
+
+L<JWebmail>, L<JWebmail::Controller::All>, L<Mojolicious>, L<Mojolicious::Controller>
+
+=head1 NOTICE
+
+This package is part of JWebmail.
+
+=cut
\ No newline at end of file
diff --git a/lib/JWebmail/Plugin/I18N.pm b/lib/JWebmail/Plugin/I18N.pm
new file mode 100644
index 0000000..dc10fdd
--- /dev/null
+++ b/lib/JWebmail/Plugin/I18N.pm
@@ -0,0 +1,212 @@
+package JWebmail::Plugin::I18N;
+
+use Mojo::Base 'Mojolicious::Plugin';
+
+use Mojolicious::Controller;
+use Mojo::File;
+use Mojo::Util 'monkey_patch';
+
+
+has '_language_loaded' => sub { {} };
+
+
+sub register {
+    my ($self, $app, $conf) = @_;
+
+    my $i18n_log = $app->log->context('[' . __PACKAGE__ . ']');
+
+    # config
+    # 1. what languages
+    # 2. where are the files
+    # 3. fallback language
+    #
+    # look for languages automatically
+    my $defaultLang = $conf->{default_language} || 'en';
+    my $fileLocation = $conf->{directory} && Mojo::File->new($conf->{directory})->is_abs
+                       ? $conf->{directory}
+                       : $app->home->child($conf->{directory} || 'lang');
+    my @languages = keys %{$conf->{languages} // {}};
+
+    unless (@languages) {
+        @languages = map { $_ =~ s|^.*/(..)\.lang$|$1|r } glob("$fileLocation/*.lang");
+    }
+
+    $app->defaults(lang => $defaultLang);
+    $app->defaults(languages => [@languages]);
+
+    # load languages
+    my $TXT;
+    for my $l (@languages) {
+        $TXT->{$l} = _loadi18n($fileLocation, $l, $i18n_log);
+    }
+
+    {
+        local $" = ',';
+        $i18n_log->debug("loaded languages (@languages)");
+    }
+
+    $self->_language_loaded( { map { $_ => 1 } @languages } );
+
+    # add translator as helper
+    my $i18n = sub {
+        my ($lang, $word) = @_;
+        $TXT->{$lang}{$word} || scalar(
+            local $" = ' ',
+            $lang && $word ? $app->log->debug('[' . __PACKAGE__ . "] missing translation for $lang:$word @{[ caller(2) ]}[0..2]") : (),
+            '',
+        )
+    };
+    $app->helper( l => sub { my $c = shift; $i18n->($c->stash->{lang}, shift) } );
+
+    # rewrite url
+    $app->hook(before_dispatch => sub { $self->read_language_hook(@_) });
+
+    # patch url_for
+    my $mojo_url_for = Mojolicious::Controller->can('url_for');
+    my $i18n_url_for = sub {
+        my $c = shift;
+        my $url = $mojo_url_for->($c, @_);
+
+        my $args = (ref $_[0] eq 'HASH' and $_[0]) || (ref $_[1] eq 'HASH' and $_[1]) || do { my %x = @_[(@_ % 2) .. $#_]; \%x };
+        my $lang = $args->{lang} // $c->stash->{lang};
+
+        if ( $lang && (ref $_[0] eq 'HASH' || !ref $_[0] && ($_[0]//'') !~ m![:@/.]!) ) {
+            unshift @{ $url->path->parts }, $lang
+                if ($url->path->parts->[0] // '') ne $lang;
+            $url = $url->to_abs(Mojo::URL->new('/'));
+        }
+
+        return $url;
+    };
+    monkey_patch 'Mojolicious::Controller', url_for => $i18n_url_for;
+
+    0
+}
+
+
+sub read_language_hook {
+    my $self = shift;
+    my $c = shift;
+
+    # URL detection
+    if (my $path = $c->req->url->path) {
+
+        my $part = $path->parts->[0];
+
+        if ( $part && $self->_language_loaded->{$part} ) {
+            # Ignore static files
+            return if $c->res->code;
+
+            $c->app->log->debug('[' . __PACKAGE__ . "] Found language $part in URL $path");
+
+            # Save lang in stash
+            $c->stash(lang => $part);
+
+            if ( @{ $path->parts } == 1 && !$path->trailing_slash ) {
+                return $c->redirect_to($c->req->url->path->trailing_slash(1)); # default controller adds language back
+            }
+
+            # Clean path
+            shift @{$path->parts};
+            $path->trailing_slash(0);
+        }
+    }
+}
+
+
+sub _loadi18n {
+
+    my $langsubdir = shift;
+    my $lang = shift;
+    my $log = shift;
+
+    my $langFile = "$langsubdir/$lang.lang";
+    my $TXT;
+
+    if ( -f $langFile ) {
+        $TXT = Config::Tiny->read($langFile, 'utf8')->{'_'};
+        if ($@ || !defined $TXT) {
+            $log->error("error reading file $langFile: $@");
+        }
+    }
+    else {
+        $log->warn("language file $langFile does not exist!");
+    }
+    return $TXT;
+}
+
+
+1
+
+__END__
+
+=encoding utf8 
+
+=head1 NAME
+
+JWebmail::Plugin::I18N - Custom Made I18N Support Inspired by Mojolicious::Plugin::I18N
+
+=head1 SYNOPSIS
+
+  $app->plugin('I18N', {
+    languages => [qw(en de es)],
+    default_language => 'en',
+    directory => '/path/to/language/files/',
+  })
+
+  # in your controller
+  $c->l('hello')
+
+  # in your templates
+  <%= l 'hello' %>
+
+  @@ de.lang
+  login = anmelden
+  userid = nuzerkennung
+  passwd = passwort
+  failed = fehlgeschlagen
+  about = über
+
+  example.com/de/myroute # $c->stash('lang') eq 'de'
+  example.com/myroute    # $c->stash('lang') eq $defaultLanguage
+
+  # on example.com/de/myroute
+  url_for('my_other_route') #=> example.com/de/my_other_route
+
+  url_for('my_other_route', lang => 'es') #=> example.com/es/my_other_route
+
+=head1 DESCRIPTION
+
+L<JWebmail::Plugin::I18N> provides I18N support.
+
+The language will be taken from the first path segment of the url.
+Be carefult with colliding routes.
+
+Mojolicious::Controller::url_for is patched so that the current language will be kept for
+router named urls.
+
+=head1 OPTIONS
+
+=head2 default_language
+
+The default language when no other information is provided.
+
+=head2 directory
+
+Directory to look for language files.
+
+=head2 languages
+
+List of allowed languages.
+Files of the pattern "$lang.lang" will be looked for.
+
+=head1 HELPERS
+
+=head2 l
+
+This is used for your translations.
+
+  $c->l('hello')
+  $app->helper('hello')->()
+
+=cut
\ No newline at end of file
diff --git a/lib/JWebmail/Plugin/I18N2.pm b/lib/JWebmail/Plugin/I18N2.pm
new file mode 100644
index 0000000..53813de
--- /dev/null
+++ b/lib/JWebmail/Plugin/I18N2.pm
@@ -0,0 +1,185 @@
+package JWebmail::Plugin::I18N2;
+
+use Mojo::Base 'Mojolicious::Plugin';
+
+use Mojolicious::Controller;
+use Mojo::File;
+use Mojo::Util 'monkey_patch';
+
+
+has '_language_loaded' => sub { {} };
+
+
+sub register {
+    my ($self, $app, $conf) = @_;
+
+    my $i18n_log = $app->log->context('[' . __PACKAGE__ . ']');
+
+    # config
+    # 1. what languages
+    # 2. where are the files
+    # 3. fallback language
+    #
+    # look for languages automatically
+    my $defaultLang = $conf->{default_language} || 'en';
+    my $fileLocation = $conf->{directory} && Mojo::File->new($conf->{directory})->is_abs
+                       ? $conf->{directory}
+                       : $app->home->child($conf->{directory} || 'lang');
+    my @languages = keys %{$conf->{languages} // {}};
+
+    unless (@languages) {
+        @languages = map { $_ =~ s|^.*/(..)\.lang$|$1|r } glob("$fileLocation/*.lang");
+    }
+
+    $app->defaults(languages => [@languages]);
+
+    # load languages
+    my $TXT;
+    for my $l (@languages) {
+        $TXT->{$l} = _loadi18n($fileLocation, $l, $i18n_log);
+    }
+
+    {
+        local $" = ',';
+        $i18n_log->debug("loaded languages (@languages)");
+    }
+
+    $self->_language_loaded( { map { $_ => 1 } @languages } );
+
+    # add translator as helper
+    my $i18n = sub {
+        my ($lang, $word) = @_;
+        $TXT->{$lang}{$word} || scalar(
+            local $" = ' ',
+            $lang && $word ? $app->log->debug('[' . __PACKAGE__ . "] missing translation for $lang:$word @{[ caller(2) ]}[0..2]") : (),
+            '',
+        )
+    };
+    $app->helper( l => sub { my $c = shift; $i18n->($c->stash->{lang}, shift) } );
+
+    $app->hook(before_dispatch => sub {
+        my $c = shift;
+        unshift @{ $c->req->url->path->parts }, ''
+            unless $self->_language_loaded->{$c->req->url->path->parts->[0] || ''};
+    });
+
+    # patch url_for
+    my $mojo_url_for = Mojolicious::Controller->can('url_for');
+    my $i18n_url_for = sub {
+        my $c = shift;
+        if (ref $_[0] eq 'HASH') {
+            $_[0]->{lang} ||= $c->stash('lang');
+        }
+        elsif (ref $_[1] eq 'HASH') {
+            $_[1]->{lang} ||= $c->stash('lang');
+        }
+        elsif (@_) {
+            push @_, lang => $c->stash('lang');
+        }
+        else {
+            @_ = {lang => $c->stash('lang')};
+        }
+        return $mojo_url_for->($c, @_);
+    };
+    monkey_patch 'Mojolicious::Controller', url_for => $i18n_url_for;
+
+    return $app->routes->any('/:lang' => {lang => 'en'});
+}
+
+
+sub _loadi18n {
+
+    my $langsubdir = shift;
+    my $lang = shift;
+    my $log = shift;
+
+    my $langFile = "$langsubdir/$lang.lang";
+    my $TXT;
+
+    if ( -f $langFile ) {
+        $TXT = Config::Tiny->read($langFile, 'utf8')->{'_'};
+        if ($@ || !defined $TXT) {
+            $log->error("error reading file $langFile: $@");
+        }
+    }
+    else {
+        $log->warn("language file $langFile does not exist!");
+    }
+    return $TXT;
+}
+
+
+1
+
+__END__
+
+=encoding utf8 
+
+=head1 NAME
+
+JWebmail::Plugin::I18N2 - Custom Made I18N Support an alternative to JWebmail::Plugin::I18N
+
+=head1 SYNOPSIS
+
+  $app->plugin('I18N2', {
+    languages => [qw(en de es)],
+    default_language => 'en',
+    directory => '/path/to/language/files/',
+  })
+
+  # in your controller
+  $c->l('hello')
+
+  # in your templates
+  <%= l 'hello' %>
+
+  @@ de.lang
+  login = anmelden
+  userid = nuzerkennung
+  passwd = passwort
+  failed = fehlgeschlagen
+  about = über
+
+  example.com/de/myroute # $c->stash('lang') eq 'de'
+  example.com/myroute    # $c->stash('lang') eq $defaultLanguage
+
+  # on example.com/de/myroute
+  url_for('my_other_route') #=> example.com/de/my_other_route
+
+  url_for('my_other_route', lang => 'es') #=> example.com/es/my_other_route
+
+=head1 DESCRIPTION
+
+L<JWebmail::Plugin::I18N2> provides I18N support.
+
+The language will be taken from the first path segment of the url.
+Be carefult with colliding routes.
+
+Mojolicious::Controller::url_for is patched so that the current language will be kept for
+router named urls.
+
+=head1 OPTIONS
+
+=head2 default_language
+
+The default language when no other information is provided.
+
+=head2 directory
+
+Directory to look for language files.
+
+=head2 languages
+
+List of allowed languages.
+Files of the pattern "$lang.lang" will be looked for.
+
+=head1 HELPERS
+
+=head2 l
+
+This is used for your translations.
+
+  $c->l('hello')
+  $app->helper('hello')->()
+
+=cut
\ No newline at end of file
diff --git a/lib/JWebmail/Plugin/INIConfig.pm b/lib/JWebmail/Plugin/INIConfig.pm
new file mode 100644
index 0000000..fe0fb1a
--- /dev/null
+++ b/lib/JWebmail/Plugin/INIConfig.pm
@@ -0,0 +1,136 @@
+package JWebmail::Plugin::INIConfig;
+use Mojo::Base 'Mojolicious::Plugin::Config';
+
+use List::Util 'all';
+
+use Config::Tiny;
+
+
+sub parse {
+    my ($self, $content, $file, $conf, $app) = @_;
+
+    my $ct = Config::Tiny->new;
+    my $config = $ct->read_string($content, 'utf8');
+    die qq{Can't parse config "$file": } . $ct->errstr unless defined $config;
+
+    $config = _process_config($config) unless $conf->{flat};
+
+    return $config;
+}
+
+
+sub _process_config {
+    my $val_prev = shift;
+    my %val = %$val_prev;
+
+    # arrayify section with number keys
+    for my $key (keys %val) {
+        if (keys %{$val{$key}} && all { $_ =~ /\d+/} keys %{$val{$key}}) {
+            my $tmp = $val{$key};
+            $val{$key} = [];
+
+            for (keys %$tmp) {
+                $val{$key}[$_] = $tmp->{$_};
+            }
+        }
+    }
+
+    # merge top section
+    my $top_section = $val{'_'};
+    delete $val{'_'};
+    for (keys %$top_section) {
+        $val{$_} = $top_section->{$_} unless $val{$_};
+    }
+
+    # make implicit nesting explicit
+    for my $key (grep { $_ =~ /^\w+(::\w+)+$/} keys %val) {
+
+        my @sections = split m/::/, $key;
+        my $x = \%val;
+        my $y;
+        for (@sections) {
+            $x->{$_} = {} unless ref $x->{$_};# eq 'HASH';
+            $y = $x;
+            $x = $x->{$_};
+        }
+        # merge
+        if (ref $val{$key} eq 'ARRAY') {
+            $y->{$sections[-1]} = [];
+            $x = $y->{$sections[-1]};
+            for ( keys @{ $val{$key} } ) {
+                $x->[$_] = $val{$key}[$_];
+            }
+        }
+        else {
+            for ( keys %{ $val{$key} } ) {
+                $x->{$_} = $val{$key}{$_};
+            }
+        }
+        delete $val{$key};
+    }
+
+    return \%val
+}
+
+
+1
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+INIConfig - Reads in ini config files.
+
+=head1 SYNOPSIS
+
+  $app->plugin('INIConfig');
+
+  @@ my_app.conf
+
+  # global section
+  key = val ; line comment
+  [section]
+  other_key = other_val
+  [other::section]
+  0 = key1
+  1 = key2
+  2 = key3
+
+=head1 DESCRIPTION
+
+INI configuration is simple with limited nesting and propper comments.
+For more precise specification on the syntax see the Config::Tiny documentation
+on metacpan.
+
+=head1 OPTIONS
+
+=head2 default
+
+Sets default configuration values.
+
+=head2 ext
+
+Sets file extension defaults to '.conf'.
+
+=head2 file
+
+Sets file name default '$app->moniker'.
+
+=head2 flat
+
+Keep configuration to exactly two nesting levels for all
+and disable auto array conversion.
+
+=head1 METHODS
+
+=head2 parse
+
+overrides the parse method of Mojolicious::Plugin::Config
+
+=head1 DEPENDENCIES
+
+Config::Tiny
+
+=cut
\ No newline at end of file
diff --git a/lib/JWebmail/Plugin/ServerSideSessionData.pm b/lib/JWebmail/Plugin/ServerSideSessionData.pm
new file mode 100644
index 0000000..9890358
--- /dev/null
+++ b/lib/JWebmail/Plugin/ServerSideSessionData.pm
@@ -0,0 +1,147 @@
+package JWebmail::Plugin::ServerSideSessionData;
+
+use Mojo::Base 'Mojolicious::Plugin';
+
+use Mojo::JSON qw(decode_json encode_json);
+use Mojo::File;
+
+use constant {
+    S_KEY => 's3d.key',
+};
+
+
+has '_session_directory';
+sub session_directory { my $self = shift; @_ ? $self->_session_directory(Mojo::File->new(@_)) : $self->_session_directory }
+
+has 'expiration';
+has 'cleanup_interval';
+
+has '_cleanup';
+sub cleanup {
+    my $self = shift;
+    if (@_) {
+        return $self->_cleanup(@_);
+    }
+    else {
+        if ($self->_cleanup < time) {
+            return 0;
+        }
+        else {
+            $self->_cleanup(time + $self->cleanup_interval);
+            return 1;
+        }
+    }
+}
+
+
+sub s3d {
+    my $self = shift;
+    my $c = shift;
+
+    # cleanup old sessions
+    if ($self->cleanup) {
+        my $t = time;
+        for ($self->session_directory->list->each) {
+            if ( $_->stat->mtime + $self->expiration < $t ) {
+                $_->remove;
+            }
+        }
+    }
+
+    my $file = $self->session_directory->child($c->session(S_KEY) || $c->req->request_id . $$);
+
+    if (-e $file) {
+        if ($file->stat->mtime + $self->expiration < time) {
+            $file->remove;
+        }
+        else {
+            $file->touch;
+        }
+    }
+    my $data = decode_json($file->slurp) if (-s $file);
+
+    my ($key, $val) = @_;
+
+    if (defined $val) { # set
+        unless (-e $file) {
+            $c->session(S_KEY, $file->basename);
+        }
+        $data = ref $data ? $data : {};
+        $data->{$key} = $val;
+
+        #$file->spurt(encode_json $data);
+        open(my $f, '>', $file) or die "$!";
+        chmod 0600, $f;
+        $f->say(encode_json $data);
+        close($f);
+    }
+    else { # get
+        return defined $key ? $data->{$key} : $data;
+    }
+};
+
+
+sub register {
+    my ($self, $app, $conf) = @_;
+
+    $self->session_directory($conf->{directory} || "/tmp/" . $app->moniker);
+    $self->expiration($conf->{expiration} || $app->sessions->default_expiration);
+    $self->cleanup_interval($conf->{cleanup_interval} || $self->expiration);
+    $self->cleanup(time + $self->cleanup_interval);
+
+    unless (-d $self->session_directory) {
+        mkdir($self->session_directory)
+            or $! ? die "failed to create directory: $!" : 1;
+    }
+
+    $app->helper( s3d => sub { $self->s3d(@_) } );
+}
+
+
+1
+
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+ServeSideSessionData - Stores session data on the server (alias SSSD or S3D)
+
+=head1 SYNOPSIS
+
+  $app->plugin('ServeSideSessionData');
+
+  $c->s3d(data => 'Hello, S3D');
+  $c->s3d('data');
+
+=head1 DESCRIPTION
+
+Store data temporarily on the server.
+The only protetction on the server are struct user access rights.
+
+=head1 OPTIONS
+
+=head2 directory
+
+default C<< 'tmp/' . $app->moniker >>
+
+=head2 expiration
+
+default session expiration
+
+=head2 cleanup_interval
+
+default session expiration
+
+=head1 HELPERS
+
+=head2 s3d
+
+Stores and retrieves values.
+
+  $c->s3d(data => 'Hello, S3D');
+  $c->s3d('data');
+  $c->s3d->{data};
+
+=cut
\ No newline at end of file
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