package NGCP::Panel::Controller::Security;
use Sipwise::Base;

BEGIN { extends 'Catalyst::Controller'; }

use XML::LibXML;
use URI::Encode;
use NGCP::Panel::Utils::Navigation;
use NGCP::Panel::Utils::XMLDispatcher;
use NGCP::Panel::Utils::DateTime;

sub auto :Does(ACL) :ACLDetachTo('/denied_page') :AllowedRole(admin) {
    my ($self, $c) = @_;
    $c->log->debug(__PACKAGE__ . '::auto');
    NGCP::Panel::Utils::Navigation::check_redirect_chain(c => $c);
    return 1;
}

sub root :PathPart('/') :CaptureArgs(0) {
    my ( $self, $c ) = @_;
}

sub index :Chained('/') :PathPart('security') :Args(0) {
    my ( $self, $c ) = @_;
    my $dispatcher = NGCP::Panel::Utils::XMLDispatcher->new;
    my $xml_parser = XML::LibXML->new();

    my $ip_xml = <<'EOF';
<?xml version="1.0" ?>
<methodCall>
    <methodName>htable.dump</methodName>
    <params>
        <param><value><string>ipban</string></value></param>
    </params>
</methodCall>
EOF

    my $ip_res = $dispatcher->dispatch($c, "loadbalancer", 1, 1, $ip_xml);

    my @ips = ();
    for my $host (grep {$$_[1]} @$ip_res) {
        my $xmlDoc = $xml_parser->parse_string($host->[2]);
        @ips = map { { ip => $_->to_literal } }
                    $xmlDoc->findnodes('//member/value/string');
    }


    my $user_xml = <<'EOF';
<?xml version="1.0" ?>
<methodCall>
    <methodName>htable.dump</methodName>
    <params>
        <param><value><string>auth</string></value></param>
    </params>
</methodCall>
EOF

    my $user_res = $dispatcher->dispatch($c, "loadbalancer", 1, 1, $user_xml);
    my @users = ();
    my $usr = {};
    for my $host (grep {$$_[1]} @$user_res) {
        my $xmlDoc = $xml_parser->parse_string($host->[2]);
        my $username = '';
        my $key = '';
        foreach my $node ($xmlDoc->findnodes('//member')) {
            my $name = $node->findvalue('./name');
            my $value = $node->findvalue('./value/string') ||
                        $node->findvalue('./value/int');
            if ($name eq 'name') {
                $value =~ m/(?<user>.*)::(?<key>.*)/;
                $username = $+{user};
                $key = $+{key};
            } elsif ($name eq 'value' && $username && $key) {
                # there souldn't be any other keys
                $key eq 'auth_count' and $usr->{$username}->{auth_count} = $value;
                $key eq 'last_auth' and $usr->{$username}->{last_auth} = $value;
            }
        }
    }

    for my $key (keys %{ $usr }) {
        push @users, {
            username => $key,
            auth_count => $usr->{$key}->{auth_count},
            last_auth => NGCP::Panel::Utils::DateTime::epoch_local($usr->{$key}->{last_auth}),
        } if($usr->{$key}->{auth_count} >= $c->config->{security}->{failed_auth_attempts});
    }

    $c->stash(
        template => 'security/list.tt',
        banned_ips => \@ips,
        banned_users => \@users,
    );
}

sub ip_base :Chained('/') :PathPart('security/ip') :CaptureArgs(1) {
    my ( $self, $c, $ip ) = @_;
    my $decoder = URI::Encode->new;
    $c->stash->{ip} = $decoder->decode($ip);
}

sub ip_unban :Chained('ip_base') :PathPart('unban') :Args(0) {
    my ( $self, $c ) = @_;
    my $dispatcher = NGCP::Panel::Utils::XMLDispatcher->new;
    my $ip = $c->stash->{ip};

    my $xml = <<"EOF";
<?xml version="1.0" ?>
<methodCall>
    <methodName>htable.delete</methodName>
    <params>
        <param><value><string>ipban</string></value></param>
        <param><value><string>$ip</string></value></param>
    </params>
</methodCall>
EOF

    $dispatcher->dispatch($c, "loadbalancer", 1, 1, $xml);
    NGCP::Panel::Utils::Message->info(
        c    => $c,
        data => { ip => $ip },
        desc => $c->loc('IP successfully unbanned'),
    );
    NGCP::Panel::Utils::Navigation::back_or($c, $c->uri_for('/security'));
}

sub user_base :Chained('/') :PathPart('security/user') :CaptureArgs(1) {
    my ( $self, $c, $user ) = @_;
    my $decoder = URI::Encode->new;
    $c->stash->{user} = $decoder->decode($user);
}

sub user_unban :Chained('user_base') :PathPart('unban') :Args(0) {
    my ( $self, $c ) = @_;
    my $dispatcher = NGCP::Panel::Utils::XMLDispatcher->new;
    my $user = $c->stash->{user};

    my @keys = ($user.'::auth_count', $user.'::last_auth');
    foreach my $key (@keys) {
        my $xml = <<"EOF";
<?xml version="1.0" ?>
<methodCall>
    <methodName>htable.delete</methodName>
    <params>
        <param><value><string>auth</string></value></param>
        <param><value><string>$key</string></value></param>
    </params>
</methodCall>
EOF

        $dispatcher->dispatch($c, "loadbalancer", 1, 1, $xml);
    }
    NGCP::Panel::Utils::Message->info(
        c    => $c,
        data => { user => $user },
        desc => $c->loc('User successfully unbanned'),
    );
    NGCP::Panel::Utils::Navigation::back_or($c, $c->uri_for('/security'));
}

__PACKAGE__->meta->make_immutable;

1;

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