mirror of
https://github.com/moodle/moodle.git
synced 2025-02-21 18:08:02 +01:00
367a75fae4
Major tasks undertaken in this patch: * New format_text argument, overflowdiv. * New page layout Report. * Review of all format_text calls. * Added support for the report layout to all themes. * Changed forum post display from tables to divs.
285 lines
8.6 KiB
PHP
Executable File
285 lines
8.6 KiB
PHP
Executable File
<?php
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/**
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* Spam Cleaner
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*
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* Helps an admin to clean up spam in Moodle
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*
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* @authors Dongsheng Cai, Martin Dougiamas, Amr Hourani
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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*/
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// List of known spammy keywords, please add more here
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/////////////////////////////////////////////////////////////////////////////////
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require_once('../../../config.php');
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require_once($CFG->libdir.'/adminlib.php');
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// Configuration
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$autokeywords = array(
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"<img",
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"fuck",
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"casino",
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"porn",
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"xxx",
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"cialis",
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"viagra",
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"poker",
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"warcraft"
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);
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$keyword = optional_param('keyword', '', PARAM_RAW);
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$autodetect = optional_param('autodetect', '', PARAM_RAW);
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$del = optional_param('del', '', PARAM_RAW);
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$delall = optional_param('delall', '', PARAM_RAW);
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$ignore = optional_param('ignore', '', PARAM_RAW);
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$reset = optional_param('reset', '', PARAM_RAW);
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$id = optional_param('id', '', PARAM_INT);
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require_login();
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admin_externalpage_setup('reportspamcleaner');
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// Delete one user
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if (!empty($del) && confirm_sesskey() && ($id != $USER->id)) {
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if (isset($SESSION->users_result[$id])) {
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$user = $SESSION->users_result[$id];
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if (delete_user($user)) {
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unset($SESSION->users_result[$id]);
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echo json_encode(true);
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} else {
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echo json_encode(false);
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}
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} else {
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echo json_encode(false);
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}
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exit;
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}
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// Delete lots of users
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if (!empty($delall) && confirm_sesskey()) {
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if (!empty($SESSION->users_result)) {
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foreach ($SESSION->users_result as $userid => $user) {
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if ($userid != $USER->id) {
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if (delete_user($user)) {
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unset($SESSION->users_result[$userid]);
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}
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}
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}
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}
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echo json_encode(true);
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exit;
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}
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if (!empty($ignore)) {
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unset($SESSION->users_result[$id]);
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echo json_encode(true);
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exit;
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}
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$PAGE->requires->js_init_call('M.report_spamcleaner.init', array(me()), true);
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$strings = Array('spaminvalidresult','spamdeleteallconfirm','spamcannotdelete','spamdeleteconfirm');
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$PAGE->requires->strings_for_js($strings, 'report_spamcleaner');
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echo $OUTPUT->header();
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// Print headers and things
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echo $OUTPUT->box(get_string('spamcleanerintro', 'report_spamcleaner'));
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echo $OUTPUT->box_start(); // The forms section at the top
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?>
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<div class="mdl-align">
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<form method="post" action="index.php">
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<div>
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<input type="text" name="keyword" id="keyword_el" value="<?php p($keyword) ?>" />
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<input type="hidden" name="sesskey" value="<?php echo sesskey();?>" />
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<input type="submit" value="<?php echo get_string('spamsearch', 'report_spamcleaner')?>" />
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</div>
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</form>
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<p><?php echo get_string('spameg', 'report_spamcleaner');?></p>
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<hr />
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<form method="post" action="index.php">
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<div>
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<input type="submit" name="autodetect" value="<?php echo get_string('spamauto', 'report_spamcleaner');?>" />
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</div>
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</form>
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</div>
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<?php
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echo $OUTPUT->box_end();
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echo '<div id="result" class="mdl-align">';
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// Print list of resulting profiles
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if (!empty($keyword)) { // Use the keyword(s) supplied by the user
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$keywords = explode(',', $keyword);
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foreach ($keywords as $key => $keyword) {
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$keywords[$key] = trim($keyword);
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}
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search_spammers($keywords);
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} else if (!empty($autodetect)) { // Use the inbuilt keyword list to detect users
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search_spammers($autokeywords);
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}
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echo '</div>';
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/////////////////////////////////////////////////////////////////////////////////
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/// Functions
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function search_spammers($keywords) {
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global $CFG, $USER, $DB, $OUTPUT;
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if (!is_array($keywords)) {
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$keywords = array($keywords); // Make it into an array
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}
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$params = array('userid'=>$USER->id);
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$keywordfull = array();
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foreach ($keywords as $keyword) {
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$keywordfull[] = $DB->sql_like('description', ':descpat', false);
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$params['descpat'] = "%$keyword%";
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$keywordfull2[] = $DB->sql_like('p.summary', ':sumpat', false);
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$params['sumpat'] = "%$keyword%";
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}
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$conditions = '( '.implode(' OR ', $keywordfull).' )';
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$conditions2 = '( '.implode(' OR ', $keywordfull2).' )';
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$sql = "SELECT * FROM {user} WHERE deleted = 0 AND id <> :userid AND $conditions"; // Exclude oneself
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$sql2 = "SELECT u.*, p.summary FROM {user} AS u, {post} AS p WHERE $conditions2 AND u.deleted = 0 AND u.id=p.userid AND u.id <> :userid";
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$spamusers_desc = $DB->get_recordset_sql($sql);
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$spamusers_blog = $DB->get_recordset_sql($sql2);
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$keywordlist = implode(', ', $keywords);
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echo $OUTPUT->box(get_string('spamresult', 'report_spamcleaner').s($keywordlist)).' ...';
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print_user_list(array($spamusers_desc, $spamusers_blog), $keywords);
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}
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function print_user_list($users_rs, $keywords) {
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global $CFG, $SESSION;
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// reset session everytime this function is called
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$SESSION->users_result = array();
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$count = 0;
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foreach ($users_rs as $rs){
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foreach ($rs as $user) {
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if (!$count) {
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echo '<table border="1" width="100%" id="data-grid"><tr><th> </th><th>'.get_string('user','admin').'</th><th>'.get_string('spamdesc', 'report_spamcleaner').'</th><th>'.get_string('spamoperation', 'report_spamcleaner').'</th></tr>';
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}
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$count++;
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filter_user($user, $keywords, $count);
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}
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}
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if (!$count) {
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echo get_string('spamcannotfinduser', 'report_spamcleaner');
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} else {
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echo '</table>';
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echo '<div class="mld-align">
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<button id="removeall_btn">'.get_string('spamdeleteall', 'report_spamcleaner').'</button>
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</div>';
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}
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}
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function filter_user($user, $keywords, $count) {
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global $CFG;
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$image_search = false;
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if (in_array('<img', $keywords)) {
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$image_search = true;
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}
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if (isset($user->summary)) {
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$user->description = '<h3>'.get_string('spamfromblog', 'report_spamcleaner').'</h3>'.$user->summary;
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unset($user->summary);
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}
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if (preg_match('#<img.*src=[\"\']('.$CFG->wwwroot.')#', $user->description, $matches)
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&& $image_search) {
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$result = false;
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foreach ($keywords as $keyword) {
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if (preg_match('#'.$keyword.'#', $user->description)
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&& ($keyword != '<img')) {
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$result = true;
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}
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}
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if ($result) {
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echo print_user_entry($user, $keywords, $count);
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} else {
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unset($user);
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}
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} else {
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echo print_user_entry($user, $keywords, $count);
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}
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}
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function print_user_entry($user, $keywords, $count) {
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global $SESSION, $CFG;
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$smalluserobject = new stdClass(); // All we need to delete them later
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$smalluserobject->id = $user->id;
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$smalluserobject->email = $user->email;
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$smalluserobject->auth = $user->auth;
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$smalluserobject->firstname = $user->firstname;
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$smalluserobject->lastname = $user->lastname;
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$smalluserobject->username = $user->username;
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if (empty($SESSION->users_result[$user->id])) {
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$SESSION->users_result[$user->id] = $smalluserobject;
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$html = '<tr valign="top" id="row-'.$user->id.'" class="result-row">';
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$html .= '<td width="10">'.$count.'</td>';
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$html .= '<td width="30%" align="left"><a href="'.$CFG->wwwroot."/user/view.php?course=1&id=".$user->id.'" title="'.s($user->username).'">'.fullname($user).'</a>';
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$html .= "<ul>";
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$profile_set = array('city'=>true, 'country'=>true, 'email'=>true);
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foreach ($profile_set as $key=>$value) {
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if (isset($user->$key)){
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$html .= '<li>'.$user->$key.'</li>';
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}
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}
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$html .= "</ul>";
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$html .= '</td>';
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foreach ($keywords as $keyword) {
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$user->description = highlight($keyword, $user->description);
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}
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if (!isset($user->descriptionformat)) {
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$user->descriptionformat = FORMAT_MOODLE;
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}
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$html .= '<td align="left">'.format_text($user->description, $user->descriptionformat, array('overflowdiv'=>true)).'</td>';
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$html .= '<td width="100px" align="center">';
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$html .= '<button onclick="M.report_spamcleaner.del_user(this,'.$user->id.')">'.get_string('deleteuser', 'admin').'</button><br />';
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$html .= '<button onclick="M.report_spamcleaner.ignore_user(this,'.$user->id.')">'.get_string('ignore', 'admin').'</button>';
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$html .= '</td>';
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$html .= '</tr>';
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return $html;
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} else {
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return null;
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}
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}
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echo $OUTPUT->footer();
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