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629 lines
24 KiB
629 lines
24 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This file contains functions used by the log reports
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*
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* This files lists the functions that are used during the log report generation.
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*
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* @package report_log
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* @copyright 1999 onwards Martin Dougiamas (http://dougiamas.com)
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die;
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if (!defined('REPORT_LOG_MAX_DISPLAY')) {
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define('REPORT_LOG_MAX_DISPLAY', 150); // days
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}
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require_once(__DIR__.'/lib.php');
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/**
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* This function is used to generate and display the log activity graph
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*
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* @global stdClass $CFG
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* @param stdClass $course course instance
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* @param int|stdClass $user id/object of the user whose logs are needed
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* @param string $typeormode type of logs graph needed (usercourse.png/userday.png) or the mode (today, all).
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* @param int $date timestamp in GMT (seconds since epoch)
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* @param string $logreader Log reader.
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* @return void
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*/
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function report_log_print_graph($course, $user, $typeormode, $date=0, $logreader='') {
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global $CFG, $OUTPUT;
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if (!is_object($user)) {
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$user = core_user::get_user($user);
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}
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$logmanager = get_log_manager();
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$readers = $logmanager->get_readers();
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if (empty($logreader)) {
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$reader = reset($readers);
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} else {
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$reader = $readers[$logreader];
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}
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// If reader is not a sql_internal_table_reader and not legacy store then don't show graph.
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if (!($reader instanceof \core\log\sql_internal_table_reader) && !($reader instanceof logstore_legacy\log\store)) {
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return array();
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}
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$coursecontext = context_course::instance($course->id);
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$a = new stdClass();
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$a->coursename = format_string($course->shortname, true, array('context' => $coursecontext));
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$a->username = fullname($user, true);
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if ($typeormode == 'today' || $typeormode == 'userday.png') {
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$logs = report_log_usertoday_data($course, $user, $date, $logreader);
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$title = get_string("hitsoncoursetoday", "", $a);
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} else if ($typeormode == 'all' || $typeormode == 'usercourse.png') {
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$logs = report_log_userall_data($course, $user, $logreader);
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$title = get_string("hitsoncourse", "", $a);
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}
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if (!empty($CFG->preferlinegraphs)) {
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$chart = new \core\chart_line();
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} else {
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$chart = new \core\chart_bar();
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}
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$series = new \core\chart_series(get_string("hits"), $logs['series']);
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$chart->add_series($series);
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$chart->set_title($title);
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$chart->set_labels($logs['labels']);
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$yaxis = $chart->get_yaxis(0, true);
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$yaxis->set_label(get_string("hits"));
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$yaxis->set_stepsize(max(1, round(max($logs['series']) / 10)));
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echo $OUTPUT->render($chart);
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}
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/**
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* Select all log records for a given course and user
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*
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* @param int $userid The id of the user as found in the 'user' table.
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* @param int $courseid The id of the course as found in the 'course' table.
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* @param string $coursestart unix timestamp representing course start date and time.
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* @param string $logreader log reader to use.
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* @return array
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*/
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function report_log_usercourse($userid, $courseid, $coursestart, $logreader = '') {
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global $DB;
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$logmanager = get_log_manager();
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$readers = $logmanager->get_readers();
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if (empty($logreader)) {
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$reader = reset($readers);
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} else {
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$reader = $readers[$logreader];
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}
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// If reader is not a sql_internal_table_reader and not legacy store then return.
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if (!($reader instanceof \core\log\sql_internal_table_reader) && !($reader instanceof logstore_legacy\log\store)) {
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return array();
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}
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$coursestart = (int)$coursestart; // Note: unfortunately pg complains if you use name parameter or column alias in GROUP BY.
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if ($reader instanceof logstore_legacy\log\store) {
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$logtable = 'log';
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$timefield = 'time';
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$coursefield = 'course';
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// Anonymous actions are never logged in legacy log.
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$nonanonymous = '';
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} else {
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$logtable = $reader->get_internal_log_table_name();
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$timefield = 'timecreated';
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$coursefield = 'courseid';
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$nonanonymous = 'AND anonymous = 0';
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}
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$params = array();
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$courseselect = '';
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if ($courseid) {
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$courseselect = "AND $coursefield = :courseid";
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$params['courseid'] = $courseid;
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}
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$params['userid'] = $userid;
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return $DB->get_records_sql("SELECT FLOOR(($timefield - $coursestart)/" . DAYSECS . ") AS day, COUNT(*) AS num
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FROM {" . $logtable . "}
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WHERE userid = :userid
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AND $timefield > $coursestart $courseselect $nonanonymous
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GROUP BY FLOOR(($timefield - $coursestart)/" . DAYSECS .")", $params);
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}
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/**
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* Select all log records for a given course, user, and day
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*
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* @param int $userid The id of the user as found in the 'user' table.
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* @param int $courseid The id of the course as found in the 'course' table.
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* @param string $daystart unix timestamp of the start of the day for which the logs needs to be retrived
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* @param string $logreader log reader to use.
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* @return array
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*/
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function report_log_userday($userid, $courseid, $daystart, $logreader = '') {
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global $DB;
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$logmanager = get_log_manager();
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$readers = $logmanager->get_readers();
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if (empty($logreader)) {
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$reader = reset($readers);
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} else {
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$reader = $readers[$logreader];
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}
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// If reader is not a sql_internal_table_reader and not legacy store then return.
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if (!($reader instanceof \core\log\sql_internal_table_reader) && !($reader instanceof logstore_legacy\log\store)) {
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return array();
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}
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$daystart = (int)$daystart; // Note: unfortunately pg complains if you use name parameter or column alias in GROUP BY.
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if ($reader instanceof logstore_legacy\log\store) {
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$logtable = 'log';
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$timefield = 'time';
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$coursefield = 'course';
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// Anonymous actions are never logged in legacy log.
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$nonanonymous = '';
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} else {
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$logtable = $reader->get_internal_log_table_name();
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$timefield = 'timecreated';
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$coursefield = 'courseid';
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$nonanonymous = 'AND anonymous = 0';
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}
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$params = array('userid' => $userid);
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$courseselect = '';
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if ($courseid) {
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$courseselect = "AND $coursefield = :courseid";
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$params['courseid'] = $courseid;
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}
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return $DB->get_records_sql("SELECT FLOOR(($timefield - $daystart)/" . HOURSECS . ") AS hour, COUNT(*) AS num
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FROM {" . $logtable . "}
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WHERE userid = :userid
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AND $timefield > $daystart $courseselect $nonanonymous
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GROUP BY FLOOR(($timefield - $daystart)/" . HOURSECS . ") ", $params);
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}
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/**
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* This function is used to generate and display Mnet selector form
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*
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* @global stdClass $USER
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* @global stdClass $CFG
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* @global stdClass $SITE
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* @global moodle_database $DB
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* @global core_renderer $OUTPUT
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* @global stdClass $SESSION
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* @uses CONTEXT_SYSTEM
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* @uses COURSE_MAX_COURSES_PER_DROPDOWN
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* @uses CONTEXT_COURSE
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* @uses SEPARATEGROUPS
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* @param int $hostid host id
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* @param stdClass $course course instance
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* @param int $selecteduser id of the selected user
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* @param string $selecteddate Date selected
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* @param string $modname course_module->id
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* @param string $modid number or 'site_errors'
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* @param string $modaction an action as recorded in the logs
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* @param int $selectedgroup Group to display
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* @param int $showcourses whether to show courses if we're over our limit.
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* @param int $showusers whether to show users if we're over our limit.
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* @param string $logformat Format of the logs (downloadascsv, showashtml, downloadasods, downloadasexcel)
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* @return void
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*/
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function report_log_print_mnet_selector_form($hostid, $course, $selecteduser=0, $selecteddate='today',
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$modname="", $modid=0, $modaction='', $selectedgroup=-1, $showcourses=0, $showusers=0, $logformat='showashtml') {
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global $USER, $CFG, $SITE, $DB, $OUTPUT, $SESSION;
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require_once $CFG->dirroot.'/mnet/peer.php';
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$mnet_peer = new mnet_peer();
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$mnet_peer->set_id($hostid);
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$sql = "SELECT DISTINCT course, hostid, coursename FROM {mnet_log}";
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$courses = $DB->get_records_sql($sql);
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$remotecoursecount = count($courses);
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// first check to see if we can override showcourses and showusers
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$numcourses = $remotecoursecount + $DB->count_records('course');
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if ($numcourses < COURSE_MAX_COURSES_PER_DROPDOWN && !$showcourses) {
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$showcourses = 1;
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}
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$sitecontext = context_system::instance();
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// Context for remote data is always SITE
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// Groups for remote data are always OFF
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if ($hostid == $CFG->mnet_localhost_id) {
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$context = context_course::instance($course->id);
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/// Setup for group handling.
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if ($course->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
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$selectedgroup = -1;
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$showgroups = false;
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} else if ($course->groupmode) {
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$showgroups = true;
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} else {
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$selectedgroup = 0;
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$showgroups = false;
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}
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if ($selectedgroup === -1) {
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if (isset($SESSION->currentgroup[$course->id])) {
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$selectedgroup = $SESSION->currentgroup[$course->id];
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} else {
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$selectedgroup = groups_get_all_groups($course->id, $USER->id);
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if (is_array($selectedgroup)) {
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$selectedgroup = array_shift(array_keys($selectedgroup));
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$SESSION->currentgroup[$course->id] = $selectedgroup;
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} else {
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$selectedgroup = 0;
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}
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}
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}
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} else {
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$context = $sitecontext;
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}
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// Get all the possible users
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$users = array();
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// Define limitfrom and limitnum for queries below
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// If $showusers is enabled... don't apply limitfrom and limitnum
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$limitfrom = empty($showusers) ? 0 : '';
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$limitnum = empty($showusers) ? COURSE_MAX_USERS_PER_DROPDOWN + 1 : '';
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// If looking at a different host, we're interested in all our site users
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if ($hostid == $CFG->mnet_localhost_id && $course->id != SITEID) {
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$courseusers = get_enrolled_users($context, '', $selectedgroup, 'u.id, ' . get_all_user_name_fields(true, 'u'),
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null, $limitfrom, $limitnum);
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} else {
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// this may be a lot of users :-(
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$courseusers = $DB->get_records('user', array('deleted'=>0), 'lastaccess DESC', 'id, ' . get_all_user_name_fields(true),
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$limitfrom, $limitnum);
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}
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if (count($courseusers) < COURSE_MAX_USERS_PER_DROPDOWN && !$showusers) {
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$showusers = 1;
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}
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if ($showusers) {
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if ($courseusers) {
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foreach ($courseusers as $courseuser) {
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$users[$courseuser->id] = fullname($courseuser, has_capability('moodle/site:viewfullnames', $context));
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}
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}
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$users[$CFG->siteguest] = get_string('guestuser');
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}
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// Get all the hosts that have log records
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$sql = "select distinct
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h.id,
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h.name
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from
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{mnet_host} h,
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{mnet_log} l
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where
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h.id = l.hostid
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order by
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h.name";
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if ($hosts = $DB->get_records_sql($sql)) {
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foreach($hosts as $host) {
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$hostarray[$host->id] = $host->name;
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}
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}
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$hostarray[$CFG->mnet_localhost_id] = $SITE->fullname;
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asort($hostarray);
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$dropdown = array();
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foreach($hostarray as $hostid => $name) {
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$courses = array();
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$sites = array();
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if ($CFG->mnet_localhost_id == $hostid) {
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if (has_capability('report/log:view', $sitecontext) && $showcourses) {
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if ($ccc = $DB->get_records("course", null, "fullname","id,shortname,fullname,category")) {
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foreach ($ccc as $cc) {
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if ($cc->id == SITEID) {
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$sites["$hostid/$cc->id"] = format_string($cc->fullname).' ('.get_string('site').')';
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} else {
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$courses["$hostid/$cc->id"] = format_string(get_course_display_name_for_list($cc));
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}
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}
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}
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}
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} else {
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if (has_capability('report/log:view', $sitecontext) && $showcourses) {
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$sql = "SELECT DISTINCT course, coursename FROM {mnet_log} where hostid = ?";
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if ($ccc = $DB->get_records_sql($sql, array($hostid))) {
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foreach ($ccc as $cc) {
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if (1 == $cc->course) { // TODO: this might be wrong - site course may have another id
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$sites["$hostid/$cc->course"] = $cc->coursename.' ('.get_string('site').')';
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} else {
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$courses["$hostid/$cc->course"] = $cc->coursename;
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}
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}
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}
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}
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}
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asort($courses);
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$dropdown[] = array($name=>($sites + $courses));
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}
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$activities = array();
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$selectedactivity = "";
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$modinfo = get_fast_modinfo($course);
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if (!empty($modinfo->cms)) {
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$section = 0;
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$thissection = array();
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foreach ($modinfo->cms as $cm) {
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if (!$cm->uservisible || !$cm->has_view()) {
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continue;
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}
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if ($cm->sectionnum > 0 and $section <> $cm->sectionnum) {
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$activities[] = $thissection;
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$thissection = array();
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}
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$section = $cm->sectionnum;
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$modname = strip_tags($cm->get_formatted_name());
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if (core_text::strlen($modname) > 55) {
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$modname = core_text::substr($modname, 0, 50)."...";
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}
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if (!$cm->visible) {
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$modname = "(".$modname.")";
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}
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$key = get_section_name($course, $cm->sectionnum);
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if (!isset($thissection[$key])) {
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$thissection[$key] = array();
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}
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$thissection[$key][$cm->id] = $modname;
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if ($cm->id == $modid) {
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$selectedactivity = "$cm->id";
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}
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}
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if (!empty($thissection)) {
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$activities[] = $thissection;
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}
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}
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if (has_capability('report/log:view', $sitecontext) && !$course->category) {
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$activities["site_errors"] = get_string("siteerrors");
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if ($modid === "site_errors") {
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$selectedactivity = "site_errors";
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}
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}
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$strftimedate = get_string("strftimedate");
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$strftimedaydate = get_string("strftimedaydate");
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asort($users);
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// Prepare the list of action options.
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$actions = array(
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'view' => get_string('view'),
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'add' => get_string('add'),
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'update' => get_string('update'),
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'delete' => get_string('delete'),
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'-view' => get_string('allchanges')
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);
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// Get all the possible dates
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// Note that we are keeping track of real (GMT) time and user time
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// User time is only used in displays - all calcs and passing is GMT
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$timenow = time(); // GMT
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// What day is it now for the user, and when is midnight that day (in GMT).
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$timemidnight = $today = usergetmidnight($timenow);
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// Put today up the top of the list
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$dates = array(
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"0" => get_string('alldays'),
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"$timemidnight" => get_string("today").", ".userdate($timenow, $strftimedate)
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);
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if (!$course->startdate or ($course->startdate > $timenow)) {
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$course->startdate = $course->timecreated;
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}
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$numdates = 1;
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while ($timemidnight > $course->startdate and $numdates < 365) {
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$timemidnight = $timemidnight - 86400;
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$timenow = $timenow - 86400;
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$dates["$timemidnight"] = userdate($timenow, $strftimedaydate);
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$numdates++;
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}
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if ($selecteddate === "today") {
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$selecteddate = $today;
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}
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echo "<form class=\"logselectform\" action=\"$CFG->wwwroot/report/log/index.php\" method=\"get\">\n";
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echo "<div>\n";//invisible fieldset here breaks wrapping
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echo "<input type=\"hidden\" name=\"chooselog\" value=\"1\" />\n";
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echo "<input type=\"hidden\" name=\"showusers\" value=\"$showusers\" />\n";
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echo "<input type=\"hidden\" name=\"showcourses\" value=\"$showcourses\" />\n";
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if (has_capability('report/log:view', $sitecontext) && $showcourses) {
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$cid = empty($course->id)? '1' : $course->id;
|
|
echo html_writer::label(get_string('selectacoursesite'), 'menuhost_course', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($dropdown, "host_course", $hostid.'/'.$cid);
|
|
} else {
|
|
$courses = array();
|
|
$courses[$course->id] = get_course_display_name_for_list($course) . ((empty($course->category)) ? ' ('.get_string('site').') ' : '');
|
|
echo html_writer::label(get_string('selectacourse'), 'menuid', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($courses,"id",$course->id, false);
|
|
if (has_capability('report/log:view', $sitecontext)) {
|
|
$a = new stdClass();
|
|
$a->url = "$CFG->wwwroot/report/log/index.php?chooselog=0&group=$selectedgroup&user=$selecteduser"
|
|
."&id=$course->id&date=$selecteddate&modid=$selectedactivity&showcourses=1&showusers=$showusers";
|
|
print_string('logtoomanycourses','moodle',$a);
|
|
}
|
|
}
|
|
|
|
if ($showgroups) {
|
|
if ($cgroups = groups_get_all_groups($course->id)) {
|
|
foreach ($cgroups as $cgroup) {
|
|
$groups[$cgroup->id] = $cgroup->name;
|
|
}
|
|
}
|
|
else {
|
|
$groups = array();
|
|
}
|
|
echo html_writer::label(get_string('selectagroup'), 'menugroup', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($groups, "group", $selectedgroup, get_string("allgroups"));
|
|
}
|
|
|
|
if ($showusers) {
|
|
echo html_writer::label(get_string('participantslist'), 'menuuser', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($users, "user", $selecteduser, get_string("allparticipants"));
|
|
}
|
|
else {
|
|
$users = array();
|
|
if (!empty($selecteduser)) {
|
|
$user = $DB->get_record('user', array('id'=>$selecteduser));
|
|
$users[$selecteduser] = fullname($user);
|
|
}
|
|
else {
|
|
$users[0] = get_string('allparticipants');
|
|
}
|
|
echo html_writer::label(get_string('participantslist'), 'menuuser', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($users, "user", $selecteduser, false);
|
|
$a = new stdClass();
|
|
$a->url = "$CFG->wwwroot/report/log/index.php?chooselog=0&group=$selectedgroup&user=$selecteduser"
|
|
."&id=$course->id&date=$selecteddate&modid=$selectedactivity&showusers=1&showcourses=$showcourses";
|
|
print_string('logtoomanyusers','moodle',$a);
|
|
}
|
|
|
|
echo html_writer::label(get_string('date'), 'menudate', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($dates, "date", $selecteddate, false);
|
|
echo html_writer::label(get_string('showreports'), 'menumodid', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($activities, "modid", $selectedactivity, get_string("allactivities"));
|
|
echo html_writer::label(get_string('actions'), 'menumodaction', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($actions, 'modaction', $modaction, get_string("allactions"));
|
|
|
|
$logformats = array('showashtml' => get_string('displayonpage'),
|
|
'downloadascsv' => get_string('downloadtext'),
|
|
'downloadasods' => get_string('downloadods'),
|
|
'downloadasexcel' => get_string('downloadexcel'));
|
|
echo html_writer::label(get_string('logsformat', 'report_log'), 'menulogformat', false, array('class' => 'accesshide'));
|
|
echo html_writer::select($logformats, 'logformat', $logformat, false);
|
|
echo '<input type="submit" value="'.get_string('gettheselogs').'" />';
|
|
echo '</div>';
|
|
echo '</form>';
|
|
}
|
|
|
|
/**
|
|
* Fetch logs since the start of the courses and structure in series and labels to be sent to Chart API.
|
|
*
|
|
* @param stdClass $course the course object
|
|
* @param stdClass $user user object
|
|
* @param string $logreader the log reader where the logs are.
|
|
* @return array structured array to be sent to chart API, split in two indexes (series and labels).
|
|
*/
|
|
function report_log_userall_data($course, $user, $logreader) {
|
|
global $CFG;
|
|
$site = get_site();
|
|
$timenow = time();
|
|
$logs = [];
|
|
if ($course->id == $site->id) {
|
|
$courseselect = 0;
|
|
} else {
|
|
$courseselect = $course->id;
|
|
}
|
|
|
|
$maxseconds = REPORT_LOG_MAX_DISPLAY * 3600 * 24; // Seconds.
|
|
if ($timenow - $course->startdate > $maxseconds) {
|
|
$course->startdate = $timenow - $maxseconds;
|
|
}
|
|
|
|
if (!empty($CFG->loglifetime)) {
|
|
$maxseconds = $CFG->loglifetime * 3600 * 24; // Seconds.
|
|
if ($timenow - $course->startdate > $maxseconds) {
|
|
$course->startdate = $timenow - $maxseconds;
|
|
}
|
|
}
|
|
|
|
$timestart = $coursestart = usergetmidnight($course->startdate);
|
|
|
|
$i = 0;
|
|
$logs['series'][$i] = 0;
|
|
$logs['labels'][$i] = 0;
|
|
while ($timestart < $timenow) {
|
|
$timefinish = $timestart + 86400;
|
|
$logs['labels'][$i] = userdate($timestart, "%a %d %b");
|
|
$logs['series'][$i] = 0;
|
|
$i++;
|
|
$timestart = $timefinish;
|
|
}
|
|
$rawlogs = report_log_usercourse($user->id, $courseselect, $coursestart, $logreader);
|
|
|
|
foreach ($rawlogs as $rawlog) {
|
|
if (isset($logs['labels'][$rawlog->day])) {
|
|
$logs['series'][$rawlog->day] = $rawlog->num;
|
|
}
|
|
}
|
|
|
|
return $logs;
|
|
}
|
|
|
|
/**
|
|
* Fetch logs of the current day and structure in series and labels to be sent to Chart API.
|
|
*
|
|
* @param stdClass $course the course object
|
|
* @param stdClass $user user object
|
|
* @param int $date A time of a day (in GMT).
|
|
* @param string $logreader the log reader where the logs are.
|
|
* @return array $logs structured array to be sent to chart API, split in two indexes (series and labels).
|
|
*/
|
|
function report_log_usertoday_data($course, $user, $date, $logreader) {
|
|
$site = get_site();
|
|
$logs = [];
|
|
|
|
if ($course->id == $site->id) {
|
|
$courseselect = 0;
|
|
} else {
|
|
$courseselect = $course->id;
|
|
}
|
|
|
|
if ($date) {
|
|
$daystart = usergetmidnight($date);
|
|
} else {
|
|
$daystart = usergetmidnight(time());
|
|
}
|
|
|
|
for ($i = 0; $i <= 23; $i++) {
|
|
$hour = $daystart + $i * 3600;
|
|
$logs['series'][$i] = 0;
|
|
$logs['labels'][$i] = userdate($hour, "%H:00");
|
|
}
|
|
|
|
$rawlogs = report_log_userday($user->id, $courseselect, $daystart, $logreader);
|
|
|
|
foreach ($rawlogs as $rawlog) {
|
|
if (isset($logs['labels'][$rawlog->hour])) {
|
|
$logs['series'][$rawlog->hour] = $rawlog->num;
|
|
}
|
|
}
|
|
|
|
return $logs;
|
|
}
|
|
|