C:/xampp/htdocs/moodle/lib/plagiarismlib.php

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<?php

// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.



if (!defined('MOODLE_INTERNAL')) {
    die('Direct access to this script is forbidden.');    
}

function plagiarism_get_links($linkarray) {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    $output = '';
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $output .= $plagiarismplugin->get_links($linkarray);
    }
    return $output;
}

function plagiarism_get_file_results($cmid, $userid, $file) {
    global $CFG;
    $allresults = array();
    if (empty($CFG->enableplagiarism)) {
        return $allresults;
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $allresults[] = $plagiarismplugin->get_file_results($cmid, $userid, $file);
    }
    return $allresults;
}

function plagiarism_save_form_elements($data) {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $plagiarismplugin->save_form_elements($data);
    }
}

function plagiarism_get_form_elements_module($mform, $context) {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $plagiarismplugin->get_form_elements_module($mform, $context);
    }
}
function plagiarism_update_status($course, $cm) {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    $output = '';
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $output .= $plagiarismplugin->update_status($course, $cm);
    }
    return $output;
}

function plagiarism_print_disclosure($cmid) {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    $output = '';
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $output .= $plagiarismplugin->print_disclosure($cmid);
    }
    return $output;
}
function plagiarism_cron() {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return '';
    }
    $plagiarismplugins = plagiarism_load_available_plugins();
    foreach($plagiarismplugins as $plugin => $dir) {
        require_once($dir.'/lib.php');
        $plagiarismclass = "plagiarism_plugin_$plugin";
        $plagiarismplugin = new $plagiarismclass;
        $plagiarismplugin->cron();
    }
}
function plagiarism_load_available_plugins() {
    global $CFG;
    if (empty($CFG->enableplagiarism)) {
        return array();
    }
    $plagiarismplugins = get_plugin_list('plagiarism');
    $availableplugins = array();
    foreach($plagiarismplugins as $plugin => $dir) {
        //check this plugin is enabled and a lib file exists.
        if (get_config('plagiarism', $plugin."_use") && file_exists($dir."/lib.php")) {
            require_once($dir.'/lib.php');
            $plagiarismclass = "plagiarism_plugin_$plugin";
            if (class_exists($plagiarismclass)) {
                $availableplugins[$plugin] = $dir;
            }
        }
    }
    return $availableplugins;
}