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137 lines
4.8 KiB
137 lines
4.8 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* This script removes previous tasks from disk to clear space.
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* Configure the date on lines 22-23 to change the dates after/before which
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* to delete.
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* This works based on sessions dates (it will not delete tasks from
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* base courses).
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* This script should be located inside the tests/scripts/ folder to work
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* @author Paul Patrocinio <ppatrocino@icpna.edu.pe>
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* @author Percy Santiago <psantiago@icpna.edu.pe>
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* @author Yannick Warnier <yannick.warnier@beeznest.com>
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*/
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die('Remove the "die()" statement on line '.__LINE__.' to execute this script'.PHP_EOL);
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if (PHP_SAPI !== 'cli') {
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die('This script can only be executed from the command line');
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}
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require_once __DIR__.'/../../public/main/inc/global.inc.php';
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// Dates
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$expiryDate = '2015-06-01'; //session start date must be < to be considered
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$fromDate = '2011-01-01'; //session start date must be > to be considered
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$sessionCourses = array();
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$coursesCodes = array();
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$coursesDirs = array();
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if (!$conexion = mysql_connect($_configuration['db_host'], $_configuration['db_user'], $_configuration['db_password'])) {
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echo 'Could not connect to database';
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exit;
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}
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if (!mysql_select_db($_configuration['main_database'], $conexion)) {
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echo 'Could not select database '.$_configuration['main_database'];
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exit;
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}
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echo "[".time()."] Querying sessions\n";
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$sql = "SELECT id FROM session where access_start_date < '$expiryDate' AND access_start_date > '$fromDate'";
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$res = mysql_query($sql, $conexion);
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if ($res === false) {
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}
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$countSessions = mysql_num_rows($res);
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$sql = "SELECT count(*) FROM session";
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$resc = mysql_query($sql, $conexion);
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if ($resc === false) {
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}
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$countAllSessions = mysql_result($resc, 0, 0);
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echo "[".time()."] Found $countSessions sessions between $fromDate and $expiryDate on a total of $countAllSessions sessions."."\n";
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while ($session = mysql_fetch_assoc($res)) {
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$sql2 = "SELECT c.id AS cid, c.code as ccode, c.directory as cdir
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FROM course c, session_rel_course s
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WHERE s.id_session = ".$session['id']."
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AND s.course_code = c.code";
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$res2 = mysql_query($sql2, $conexion); //Database::query($sql2);
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if ($res2 === false) {
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die("Error querying courses for session ".$session['id'].": ".mysql_error($res2)."\n");
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}
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if (mysql_num_rows($res2) > 0) {
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while ($course = mysql_fetch_assoc($res2)) {
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$sessionCourses[$session['id']] = $course['cid'];
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//$_SESSION['session_course'] = $sessionCourses;
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if (empty($coursesCodes[$course['cid']])) {
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$coursesCodes[$course['cid']] = $course['ccode'];
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}
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if (empty($coursesDirs[$course['cid']])) {
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$coursesDirs[$course['cid']] = $course['cdir'];
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}
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}
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}
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}
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echo "[".time()."] Filled courses arrays. Now checking tasks...\n";
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/**
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* Locate and destroy the expired tasks
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*/
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//$sessionCourse = $_SESSION['session_course'];
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$totalSize = 0;
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foreach ($sessionCourses as $sid => $cid) {
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// Check if a folder already exists in this session
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// Folders are exclusive to sessions. If a folder already exists in
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// another session, you will not be allowed to create the same folder in
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// another session. As such, folders belong to one and only one session.
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$sql = "SELECT id, url FROM c_student_publication
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WHERE filetype = 'folder'
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AND c_id = $cid
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AND session_id = $sid
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AND active = 1
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AND url LIKE '%ALP%'";
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$resCarpetas = mysql_query($sql, $conexion); //Database::query($sql);
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if (mysql_num_rows($resCarpetas) > 0) {
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while ($rowDemo = mysql_fetch_assoc($resCarpetas)) {
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$carpetaAlpElimina = $_configuration['root_sys'].'courses/'.$coursesDirs[$cid].'/work'.$rowDemo['url'];
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//echo "rm -rf ".$carpetaAlpElimina."\n";
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$size = folderSize($carpetaAlpElimina);
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$totalSize += $size;
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echo "Freeing $size of a total $totalSize bytes in $carpetaAlpElimina\n";
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exec('rm -rf '.$carpetaAlpElimina);
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}
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$sqldel = "DELETE FROM c_student_publication
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WHERE
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c_id = $cid
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AND session_id = $sid AND active = 1;";
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$resdel = mysql_query($sqldel);
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if ($resdel === false) {
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echo "Error querying sessions";
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}
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}
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}
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echo "[".time()."] Deleted tasks from $countSessions sessions between $fromDate and $expiryDate on a total of $countAllSessions sessions."."\n";
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/**
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* Helper function to calculate size of a folder
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* @author See php.net comments on filesize()
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*/
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function folderSize($dir) {
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$size = 0;
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$contents = glob(rtrim($dir, '/').'/*', GLOB_NOSORT);
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foreach ($contents as $contents_value) {
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if (is_file($contents_value)) {
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$size += filesize($contents_value);
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} else {
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$size += folderSize($contents_value);
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}
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}
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return $size;
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}
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