#!/usr/local/cpanel/3rdparty/bin/perl

# cpanel - scripts/litespeed-check                 Copyright 2022 cPanel, L.L.C.
#                                                           All rights reserved.
# copyright@cpanel.net                                         http://cpanel.net
# This code is subject to the cPanel license. Unauthorized copying is prohibited

use strict;
use warnings;

use Whostmgr::LiteSpeed ();

# Make sure we get exactly the args we want, with a little flexibility for calling --help, -h, -HELP, etc.
exit script() unless caller;

sub script {
    my $args_ok = 0;
    foreach my $arg (@ARGV) {
        if ( $arg =~ m/^-{1,2}h/i ) {
            show_usage();
            return 0;
        }
        elsif ( $arg eq '--run' ) {
            $args_ok = 1;
        }
        else {
            print "Unknown arguments passed.\n";
            show_usage(1);
            return 1;
        }
    }
    if ( $args_ok != 1 ) {
        show_usage();
        return 1;
    }

    # Allow for manual override of this automated check
    my $disable_touchfile = '/var/cpanel/disable_auto_lsws';

    if ( -e $disable_touchfile ) {
        print "Skipping automatic check for LiteSpeed Web Server license due to existence of $disable_touchfile\n";
        return 0;
    }

    my $handler            = Whostmgr::LiteSpeed->new();
    my $has_active_license = 0;

    # Retrieve the license from the store server
    my ( $rc, $serial_no ) = $handler->get_litespeed_license();

    # If there is no active license available, there is no need to continue, otherwise we'll save the serial number from the license server
    if ( $rc == 1 ) {
        $has_active_license = 1;
    }
    else {
        # No active license exists, no need to carry on
        print "No license found for LiteSpeed Web Server in cPanel Store.\n";
        return 0;
    }

    # If it's installed (at least in some fashion) we need to check to see if it's using the right license.
    # For example, if they are using a TRIAL key, or expired key, we want to replace it with the latest available
    # If it's not installed and we have a valid serial, install LS with the serial
    my $is_installed = $handler->is_litespeed_installed();
    if ($is_installed) {
        my ( $rc, $stdout, $stderr ) = $handler->ensure_using_latest_license($serial_no);
        if ( $rc == 1 ) {
            print "Successfully installed new license on existing install:\n$stdout\n";
            my ( $rc2, $stdout2, $stderr2 ) = $handler->lsws_cmd('SWITCH_TO_LSWS');
            if ( $rc2 == 1 ) {
                print "Successfully ensured LiteSpeed Web Server is the default.\n";
            }
            else {
                print "There was a problem trying to enable LiteSpeed Web Server:\n$stdout2\n$stderr2\n";
            }
        }
        elsif ( $rc == 2 ) {
            print "Valid license already in place on existing install\n";
        }
        else {
            print "Failed to install new license on existing install:\n$stdout\n$stderr\n";
        }
    }
    else {
        if ( $handler->install_litespeed( { 'quiet' => 1, 'license_key' => $serial_no } ) ) {
            print "Successfully installed LiteSpeed Web Server with new license.\n";
        }
    }
    return 0;
}
###[ Functions ]########################################################################################################

sub show_usage {
    my ($use_stderr) = @_;
    my $out_fh = ( $use_stderr ? \*STDERR : \*STDOUT );
    print $out_fh <<EOF;
This script checks to see if there is a LiteSpeed license available for the server it is run on in the cPanel Store,
and if so, ensures LiteSpeed is installed and running with a valid paid license, using the one from the store if not
already in place.

Usage:
    scripts/litespeed-check <--help|--run>

    --help  : Show this output
    --run   : Actually run the check for LiteSpeed license and installation

EOF
    return;
}