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accesslib.php	267.25 KB	-rw-rw-r--
adminlib.php	391.73 KB	-rw-rw-r--
authlib.php	42.17 KB	-rw-r--r--
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blocklib.php	99.84 KB	-rw-rw-r--
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cacert.pem	239.21 KB	-rw-r--r--
cacert.txt	811 B	-rw-r--r--
clilib.php	9.57 KB	-rw-r--r--
completionlib.php	57.62 KB	-rw-rw-r--
componentlib.class.php	29.2 KB	-rw-r--r--
components.json	3.51 KB	-rw-rw-r--
conditionlib.php	1.11 KB	-rw-r--r--
configonlylib.php	6.48 KB	-rw-r--r--
cookies.js	2.37 KB	-rw-r--r--
cronlib.php	15.06 KB	-rw-rw-r--
csslib.php	6.81 KB	-rw-r--r--
csvlib.class.php	17.71 KB	-rw-r--r--
customcheckslib.php	1.5 KB	-rw-r--r--
dataformatlib.php	1.79 KB	-rw-r--r--
datalib.php	71.86 KB	-rw-r--r--
ddllib.php	4.71 KB	-rw-r--r--
default.ttf	502.23 KB	-rw-r--r--
deprecatedlib.php	109.54 KB	-rw-rw-r--
dmllib.php	12.2 KB	-rw-r--r--
dtllib.php	2.58 KB	-rw-r--r--
editorlib.php	6.43 KB	-rw-r--r--
emptyfile.php	809 B	-rw-r--r--
enrollib.php	119.69 KB	-rw-rw-r--
environmentlib.php	57.34 KB	-rw-r--r--
excellib.class.php	30.29 KB	-rw-r--r--
externallib.php	60.49 KB	-rw-rw-r--
filelib.php	198.24 KB	-rw-rw-r--
filterlib.php	59.46 KB	-rw-r--r--
flickrclient.php	10.1 KB	-rw-r--r--
flickrlib.php	52.39 KB	-rw-r--r--
formslib.php	143.82 KB	-rw-rw-r--
gdlib.php	17.67 KB	-rw-r--r--
googleapi.php	16.83 KB	-rw-rw-r--
gradelib.php	60.98 KB	-rw-rw-r--
graphlib.php	83.1 KB	-rw-r--r--
grouplib.php	47.99 KB	-rw-rw-r--
index.html	1 B	-rw-r--r--
installlib.php	18.06 KB	-rw-rw-r--
javascript-static.js	43.13 KB	-rw-rw-r--
javascript.php	4.09 KB	-rw-r--r--
jslib.php	4.21 KB	-rw-r--r--
jssourcemap.php	2.41 KB	-rw-r--r--
ldaplib.php	18.25 KB	-rw-r--r--
lexer.php	15.92 KB	-rw-r--r--
licenselib.php	12.53 KB	-rw-r--r--
listlib.php	22.53 KB	-rw-r--r--
mathslib.php	4.47 KB	-rw-r--r--
messagelib.php	33.52 KB	-rw-rw-r--
modinfolib.php	120.36 KB	-rw-rw-r--
moodlelib.php	377.09 KB	-rw-rw-r--
myprofilelib.php	18.06 KB	-rw-r--r--
navigationlib.php	249.36 KB	-rw-rw-r--
oauthlib.php	24.56 KB	-rw-r--r--
odslib.class.php	57.36 KB	-rw-r--r--
outputactions.php	7.11 KB	-rw-r--r--
outputcomponents.php	160.86 KB	-rw-rw-r--
outputfactories.php	18.11 KB	-rw-r--r--
outputfragmentrequirementslib....	4.28 KB	-rw-r--r--
outputlib.php	94.67 KB	-rw-rw-r--
outputrenderers.php	209.04 KB	-rw-rw-r--
outputrequirementslib.php	86.36 KB	-rw-rw-r--
pagelib.php	77.61 KB	-rw-rw-r--
pdflib.php	9.23 KB	-rw-r--r--
phpminimumversionlib.php	3.08 KB	-rw-r--r--
plagiarismlib.php	8.15 KB	-rw-rw-r--
portfoliolib.php	53.57 KB	-rw-rw-r--
questionlib.php	88.9 KB	-rw-rw-r--
recaptchalib_v2.php	6.39 KB	-rw-r--r--
requirejs.php	6.9 KB	-rw-r--r--
resourcelib.php	8.91 KB	-rw-r--r--
rsslib.php	17.84 KB	-rw-r--r--
searchlib.php	17.95 KB	-rw-r--r--
sessionlib.php	6.97 KB	-rw-r--r--
setup.php	39.13 KB	-rw-rw-r--
setuplib.php	77.18 KB	-rw-rw-r--
soaplib.php	5.23 KB	-rw-r--r--
statslib.php	67.65 KB	-rw-r--r--
tablelib.php	75.93 KB	-rw-rw-r--
thirdpartylibs.xml	9.44 KB	-rw-rw-r--
tokeniserlib.php	16.48 KB	-rw-r--r--
upgrade.txt	120.5 KB	-rw-rw-r--
upgradelib.php	101.95 KB	-rw-rw-r--
uploadlib.php	1.9 KB	-rw-r--r--
validateurlsyntax.php	23.05 KB	-rw-r--r--
wasmlib.php	4.29 KB	-rw-r--r--
webdavlib.php	68.75 KB	-rw-r--r--
weblib.php	125.18 KB	-rw-rw-r--
wiki_to_markdown.php	13.12 KB	-rw-r--r--
womenslib.php	1021 B	-rw-r--r--
wordlist.txt	1.23 KB	-rw-r--r--
xhtml.xsl	223 B	-rw-r--r--
xmlize.php	8.85 KB	-rw-r--r--
xsendfilelib.php	2.59 KB	-rw-r--r--

Code Editor : sessionlib.php

<?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/>.

/**
 * @package    core
 * @subpackage session
 * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
 * @copyright  2008, 2009 Petr Skoda  {@link http://skodak.org}
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

/**
 * Makes sure that $USER->sesskey exists, if $USER itself exists. It sets a new sesskey
 * if one does not already exist, but does not overwrite existing sesskeys. Returns the
 * sesskey string if $USER exists, or boolean false if not.
 *
 * @uses $USER
 * @return string
 */
function sesskey() {
    // note: do not use $USER because it may not be initialised yet
    if (empty($_SESSION['USER']->sesskey)) {
        if (!isset($_SESSION['USER'])) {
            // This should never happen,
            // do not mess with session and globals here,
            // let any checks fail instead!
            return false;
        }
        $_SESSION['USER']->sesskey = random_string(10);
    }

return $_SESSION['USER']->sesskey;
}

/**
 * Check the sesskey and return true of false for whether it is valid.
 * (You might like to imagine this function is called sesskey_is_valid().)
 *
 * Every script that lets the user perform a significant action (that is,
 * changes data in the database) should check the sesskey before doing the action.
 * Depending on your code flow, you may want to use the {@link require_sesskey()}
 * helper function.
 *
 * @param string $sesskey The sesskey value to check (optional). Normally leave this blank
 *      and this function will do required_param('sesskey', ...).
 * @return bool whether the sesskey sent in the request matches the one stored in the session.
 */
function confirm_sesskey($sesskey=NULL) {
    global $USER;

if (!empty($USER->ignoresesskey)) {
        return true;
    }

if (empty($sesskey)) {
        $sesskey = required_param('sesskey', PARAM_RAW);  // Check script parameters
    }

return (sesskey() === $sesskey);
}

/**
 * Check the session key using {@link confirm_sesskey()},
 * and cause a fatal error if it does not match.
 */
function require_sesskey() {
    if (!confirm_sesskey()) {
        print_error('invalidsesskey');
    }
}

/**
 * Determine wether the secure flag should be set on cookies
 * @return bool
 */
function is_moodle_cookie_secure() {
    global $CFG;

if (!isset($CFG->cookiesecure)) {
        return false;
    }
    if (!is_https() and empty($CFG->sslproxy)) {
        return false;
    }
    return !empty($CFG->cookiesecure);
}

/**
 * Sets a moodle cookie with a weakly encrypted username
 *
 * @param string $username to encrypt and place in a cookie, '' means delete current cookie
 * @return void
 */
function set_moodle_cookie($username) {
    global $CFG;

if (NO_MOODLE_COOKIES) {
        return;
    }

if (empty($CFG->rememberusername)) {
        // erase current and do not store permanent cookies
        $username = '';
    }

if ($username === 'guest') {
        // keep previous cookie in case of guest account login
        return;
    }

$cookiename = 'MOODLEID1_'.$CFG->sessioncookie;

$cookiesecure = is_moodle_cookie_secure();

// Delete old cookie.
    setcookie($cookiename, '', time() - HOURSECS, $CFG->sessioncookiepath, $CFG->sessioncookiedomain, $cookiesecure, $CFG->cookiehttponly);

if ($username !== '') {
        // Set username cookie for 60 days.
        setcookie($cookiename, rc4encrypt($username), time() + (DAYSECS * 60), $CFG->sessioncookiepath, $CFG->sessioncookiedomain, $cookiesecure, $CFG->cookiehttponly);
    }
}

/**
 * Gets a moodle cookie with a weakly encrypted username
 *
 * @return string username
 */
function get_moodle_cookie() {
    global $CFG;

if (NO_MOODLE_COOKIES) {
        return '';
    }

if (empty($CFG->rememberusername)) {
        return '';
    }

$cookiename = 'MOODLEID1_'.$CFG->sessioncookie;

if (empty($_COOKIE[$cookiename])) {
        return '';
    } else {
        $username = rc4decrypt($_COOKIE[$cookiename]);
        if ($username === 'guest' or $username === 'nobody') {
            // backwards compatibility - we do not set these cookies any more
            $username = '';
        }
        return $username;
    }
}

/**
 * Sets up current user and course environment (lang, etc.) in cron.
 * Do not use outside of cron script!
 *
 * @param stdClass $user full user object, null means default cron user (admin),
 *                 value 'reset' means reset internal static caches.
 * @param stdClass $course full course record, null means $SITE
 * @param bool $leavepagealone If specified, stops it messing with global page object
 * @return void
 */
function cron_setup_user($user = null, $course = null, $leavepagealone = false) {
    global $CFG, $SITE, $PAGE;

if (!CLI_SCRIPT && !$leavepagealone) {
        throw new coding_exception('Function cron_setup_user() cannot be used in normal requests!');
    }

static $cronuser    = NULL;
    static $cronsession = NULL;

if ($user === 'reset') {
        $cronuser = null;
        $cronsession = null;
        \core\session\manager::init_empty_session();
        return;
    }

if (empty($cronuser)) {
        /// ignore admins timezone, language and locale - use site default instead!
        $cronuser = get_admin();
        $cronuser->timezone = $CFG->timezone;
        $cronuser->lang     = '';
        $cronuser->theme    = '';
        unset($cronuser->description);

$cronsession = new stdClass();
    }

if (!$user) {
        // Cached default cron user (==modified admin for now).
        \core\session\manager::init_empty_session();
        \core\session\manager::set_user($cronuser);
        $GLOBALS['SESSION'] = $cronsession;

} else {
        // Emulate real user session - needed for caps in cron.
        if ($GLOBALS['USER']->id != $user->id) {
            \core\session\manager::init_empty_session();
            \core\session\manager::set_user($user);
        }
    }

// TODO MDL-19774 relying on global $PAGE in cron is a bad idea.
    // Temporary hack so that cron does not give fatal errors.
    if (!$leavepagealone) {
        $PAGE = new moodle_page();
        if ($course) {
            $PAGE->set_course($course);
        } else {
            $PAGE->set_course($SITE);
        }
    }

// TODO: it should be possible to improve perf by caching some limited number of users here ;-)

}

${this.title}

Code Editor : sessionlib.php