/**
* Re-syncs if a user can access a mention,
*
* - for example if they loose or gain access to a board, this will correct
* the viewing of the mention table. Since this can be a large job it is run
* as a scheduled immediate task
*/
public function user_access_mentions()
{
global $modSettings;
$db = database();
$user_access_mentions = @unserialize($modSettings['user_access_mentions']);
// This should be set only because of an immediate scheduled task, so higher priority
if (!empty($user_access_mentions)) {
foreach ($user_access_mentions as $member => $begin) {
// Just to stay on the safe side...
if (empty($member)) {
continue;
}
require_once SUBSDIR . '/Boards.subs.php';
require_once SUBSDIR . '/Mentions.subs.php';
require_once SUBSDIR . '/Members.subs.php';
$user_see_board = memberQuerySeeBoard($member);
$limit = 100;
// We need to repeat this twice: once to find the boards the user can access,
// once for those he cannot access
foreach (array('can', 'cannot') as $can) {
// Let's always start from the begin
$start = $begin;
while (true) {
// Find all the mentions that this user can or cannot see
$request = $db->query('', '
SELECT mnt.id_mention, m.id_board
FROM {db_prefix}log_mentions as mnt
LEFT JOIN {db_prefix}messages AS m ON (m.id_msg = mnt.id_msg)
LEFT JOIN {db_prefix}boards AS b ON (b.id_board = m.id_board)
WHERE mnt.id_member = {int:current_member}
AND mnt.mention_type IN ({array_string:mention_types})
AND {raw:user_see_board}
LIMIT {int:start}, {int:limit}', array('current_member' => $member, 'mention_types' => array('men', 'like', 'rlike'), 'user_see_board' => ($can == 'can' ? '' : 'NOT ') . $user_see_board, 'start' => $start, 'limit' => $limit));
$mentions = array();
$remove = array();
while ($row = $db->fetch_assoc($request)) {
if (empty($row['id_board'])) {
$remove[] = $row['id_mention'];
} else {
$mentions[] = $row['id_mention'];
}
}
$db->free_result($request);
if (!empty($remove)) {
removeMentions($remove);
}
// If we found something toggle them and increment the start for the next round
if (!empty($mentions)) {
toggleMentionsAccessibility($mentions, $can == 'can');
} else {
break;
}
// Next batch
$start += $limit;
}
}
// Drop the member
unset($user_access_mentions[$member]);
// And save everything for the next run
updateSettings(array('user_access_mentions' => serialize($user_access_mentions)));
// Count helps keep things correct
countUserMentions(false, '', $member);
// Run this only once for each user, it may be quite heavy, let's split up the load
break;
}
// If there are no more users, scheduleTaskImmediate can be stopped
if (empty($user_access_mentions)) {
removeScheduleTaskImmediate('user_access_mentions', false);
}
return true;
} else {
// Checks 10 users at a time, the scheduled task is set to run once per hour, so 240 users a day
// @todo <= I know you like it Spuds! :P It may be necessary to set it to something higher.
$limit = 10;
$current_check = !empty($modSettings['mentions_member_check']) ? $modSettings['mentions_member_check'] : 0;
require_once SUBSDIR . '/Members.subs.php';
require_once SUBSDIR . '/Mentions.subs.php';
// Grab users with mentions
$request = $db->query('', '
SELECT COUNT(DISTINCT(id_member))
FROM {db_prefix}log_mentions
WHERE id_member > {int:last_id_member}
AND mention_type IN ({array_string:mention_types})', array('last_id_member' => $current_check, 'mention_types' => array('men', 'like', 'rlike')));
list($remaining) = $db->fetch_row($request);
$db->free_result($request);
if ($remaining == 0) {
$current_check = 0;
}
// Grab users with mentions
$request = $db->query('', '
SELECT DISTINCT(id_member) as id_member
FROM {db_prefix}log_mentions
WHERE id_member > {int:last_id_member}
AND mention_type IN ({array_string:mention_types})
LIMIT {int:limit}', array('last_id_member' => $current_check, 'mention_types' => array('men', 'like', 'rlike'), 'limit' => $limit));
// Remember where we are
updateSettings(array('mentions_member_check' => $current_check + $limit));
while ($row = $db->fetch_assoc($request)) {
// Rebuild 'query_see_board', a lot of code duplication... :(
$user_see_board = memberQuerySeeBoard($row['id_member']);
// Find out if this user cannot see something that was supposed to be able to see
$request2 = $db->query('', '
SELECT mnt.id_mention
FROM {db_prefix}log_mentions as mnt
LEFT JOIN {db_prefix}messages AS m ON (m.id_msg = mnt.id_msg)
LEFT JOIN {db_prefix}boards AS b ON (b.id_board = m.id_board)
WHERE mnt.id_member = {int:current_member}
AND mnt.mention_type IN ({array_string:mention_types})
AND {raw:user_see_board}
AND status < 0
LIMIT 1', array('current_member' => $row['id_member'], 'mention_types' => array('men', 'like', 'rlike'), 'user_see_board' => 'NOT ' . $user_see_board));
// One row of results is enough: scheduleTaskImmediate!
if ($db->num_rows($request2) == 1) {
if (!empty($modSettings['user_access_mentions'])) {
$modSettings['user_access_mentions'] = @unserialize($modSettings['user_access_mentions']);
} else {
$modSettings['user_access_mentions'] = array();
}
// But if the member is already on the list, let's skip it
if (!isset($modSettings['user_access_mentions'][$row['id_member']])) {
$modSettings['user_access_mentions'][$row['id_member']] = 0;
updateSettings(array('user_access_mentions' => serialize(array_unique($modSettings['user_access_mentions']))));
scheduleTaskImmediate('user_access_mentions');
}
}
$db->free_result($request2);
}
$db->free_result($request);
return true;
}
}
/**
* Calls the supplied task_name so that it is executed.
*
* - Logs that the task was executed with success or if it failed
*
* @package ScheduledTasks
* @param int $id_task specific id of the task to run, used for logging
* @param string $task_name name of the task, class name, function name, method in ScheduledTask.class
*/
function run_this_task($id_task, $task_name)
{
global $time_start, $modSettings;
// Let's start logging the task and saying we failed it
$log_task_id = logTask(0, $id_task);
// The method must exist in ScheduledTask class, or we are wasting our time.
// Actually for extendability sake, we need to have other ways, so:
// A simple procedural function?
if (strpos($task_name, '::') === false && function_exists($task_name)) {
$method = $task_name;
// Do the task...
$completed = $method();
} else {
// It may be a custom one
if (strpos($task_name, '::') !== false) {
$call = explode('::', $task_name);
$task_object = new $call[0]();
$method = $call[1];
} else {
$task_object = new Scheduled_Task();
$method = $task_name;
}
if (method_exists($task_object, $method)) {
// Try to stop a timeout, this would be bad...
@set_time_limit(300);
if (function_exists('apache_reset_timeout')) {
@apache_reset_timeout();
}
// Do the task...
$completed = $task_object->{$method}();
}
}
// Log that we did it ;)
if ($completed) {
// Taking care of scheduleTaskImmediate having a maximum of 10 "fast" executions
$scheduleTaskImmediate = @unserialize($modSettings['scheduleTaskImmediate']);
if (!empty($scheduleTaskImmediate) && isset($scheduleTaskImmediate[$task_name])) {
$scheduleTaskImmediate[$task_name]++;
if ($scheduleTaskImmediate[$task_name] > 9) {
removeScheduleTaskImmediate($task_name, false);
} else {
updateSettings(array('scheduleTaskImmediate' => serialize($scheduleTaskImmediate)));
}
}
$total_time = round(microtime(true) - $time_start, 3);
// If the task ended successfully, then log the proper time taken to complete
logTask($log_task_id, $id_task, $total_time);
}
}