check_system_version()

Complexity

Conditions	12
Paths	246

Size

Total Lines	106
Code Lines	65

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
function check_system_version()
{
    // Check if curl is available.
    if (!in_array('curl', get_loaded_extensions())) {
        return '<span style="color:red">'.get_lang('ImpossibleToContactVersionServerPleaseTryAgain').'</span>';
    }

    $url = 'https://version.chamilo.org';
    $options = [
        'verify' => false,
    ];

    $urlValidated = false;

    try {
        $client = new GuzzleHttp\Client();
        $res = $client->request('GET', $url, $options);
        if ($res->getStatusCode() == '200' || $res->getStatusCode() == '301') {
            $urlValidated = true;
        }
    } catch (Exception $e) {

Consider adding a comment why this CATCH block is empty.

    }

    // the chamilo version of your installation
    $system_version = trim(api_get_configuration_value('system_version'));

    if ($urlValidated) {
        // The number of courses
        $number_of_courses = Statistics::countCourses();

        // The number of users
        $number_of_users = Statistics::countUsers();
        $number_of_active_users = Statistics::countUsers(
            null,
            null,
            null,
            true
        );

        // The number of sessions
        $number_of_sessions = SessionManager::count_sessions(api_get_current_access_url_id());
        $packager = api_get_configuration_value('packager');
        if (empty($packager)) {
            $packager = 'chamilo';
        }

        $uniqueId = '';
        $entityManager = Database::getManager();
        /** @var BranchSyncRepository $branch */
        $repository = $entityManager->getRepository('ChamiloCoreBundle:BranchSync');
        /** @var BranchSync $branch */
        $branch = $repository->getTopBranch();
        if (is_a($branch, '\Chamilo\CoreBundle\Entity\BranchSync')) {
            $uniqueId = $branch->getUniqueId();
        }

        $data = [
            'url' => api_get_path(WEB_PATH),
            'campus' => api_get_setting('siteName'),
            'contact' => api_get_setting('emailAdministrator'), // the admin's e-mail, with the only purpose of being able to contact admins to inform about critical security issues
            'version' => $system_version,
            'numberofcourses' => $number_of_courses, // to sum up into non-personal statistics - see https://version.chamilo.org/stats/
            'numberofusers' => $number_of_users, // to sum up into non-personal statistics
            'numberofactiveusers' => $number_of_active_users, // to sum up into non-personal statistics
            'numberofsessions' => $number_of_sessions,
            //The donotlistcampus setting recovery should be improved to make
            // it true by default - this does not affect numbers counting
            'donotlistcampus' => api_get_setting('donotlistcampus'),
            'organisation' => api_get_setting('Institution'),
            'language' => api_get_setting('platformLanguage'), //helps us know the spread of language usage for campuses, by main language
            'adminname' => api_get_setting('administratorName').' '.api_get_setting('administratorSurname'), //not sure this is necessary...
            'ip' => $_SERVER['REMOTE_ADDR'], //the admin's IP address, with the only purpose of trying to geolocate portals around the globe to draw a map
            // Reference to the packager system or provider through which
            // Chamilo is installed/downloaded. Packagers can change this in
            // the default config file (main/install/configuration.dist.php)
            // or in the installed config file. The default value is 'chamilo'
            'packager' => $packager,
            'unique_id' => $uniqueId,
        ];

        $version = null;
        $client = new GuzzleHttp\Client();
        $url .= '?';
        foreach ($data as $k => $v) {
            $url .= urlencode($k).'='.urlencode($v).'&';
        }
        $res = $client->request('GET', $url, $options);
        if ($res->getStatusCode() == '200') {
            $versionData = $res->getHeader('X-Chamilo-Version');
            if (isset($versionData[0])) {
                $version = trim($versionData[0]);
            }
        }

        if (version_compare($system_version, $version, '<')) {
            $output = '<span style="color:red">'.get_lang('YourVersionNotUpToDate').'<br />
                       '.get_lang('LatestVersionIs').' <b>Chamilo '.$version.'</b>.  <br />
                       '.get_lang('YourVersionIs').' <b>Chamilo '.$system_version.'</b>.  <br />'.str_replace('http://www.chamilo.org', '<a href="http://www.chamilo.org">http://www.chamilo.org</a>', get_lang('PleaseVisitOurWebsite')).'</span>';
        } else {
            $output = '<span style="color:green">'.get_lang('VersionUpToDate').': Chamilo '.$version.'</span>';
        }

        return $output;
    }

    return '<span style="color:red">'.get_lang('ImpossibleToContactVersionServerPleaseTryAgain').'</span>';
}