/**
* Executes the command cache:purge.
*
* Purge the cache (including permissions) and increment the asset_version number
*
* @param InputInterface $input An InputInterface instance
* @param OutputInterface $output An OutputInterface instance
*
* @return null
*/
protected function execute(InputInterface $input, OutputInterface $output)
{
$this->config->increment('assets_version', 1);
$this->cache->purge();
// Clear permissions
$this->auth->acl_clear_prefetch();
src_cache_moderators($this->db, $this->cache, $this->auth);
$this->log->add('admin', ANONYMOUS, '', 'LOG_PURGE_CACHE', time(), array());
$output->writeln($this->user->lang('PURGE_CACHE_SUCCESS'));
}
/**
* Return unique id
*
* @param string $extra Additional entropy
*
* @return string Unique id
*/
public function unique_id($extra = 'c')
{
static $dss_seeded = false;
$val = $this->config['rand_seed'] . microtime();
$val = md5($val);
$this->config['rand_seed'] = md5($this->config['rand_seed'] . $val . $extra);
if ($dss_seeded !== true && $this->config['rand_seed_last_update'] < time() - rand(1, 10)) {
$this->config->set('rand_seed_last_update', time(), true);
$this->config->set('rand_seed', $this->config['rand_seed'], true);
$dss_seeded = true;
}
return substr($val, 4, 16);
}
/**
* Creates a configuration container with a default set of values
*
* @param \src\db\driver\driver_interface $db Database connection
* @param \src\cache\driver\driver_interface $cache Cache instance
* @param string $table Configuration table name
*/
public function __construct(\src\db\driver\driver_interface $db, \src\cache\driver\driver_interface $cache, $table)
{
$this->db = $db;
$this->cache = $cache;
$this->table = $table;
if (($config = $cache->get('config')) !== false) {
$sql = 'SELECT config_name, config_value
FROM ' . $this->table . '
WHERE is_dynamic = 1';
$result = $this->db->sql_query($sql);
while ($row = $this->db->sql_fetchrow($result)) {
$config[$row['config_name']] = $row['config_value'];
}
$this->db->sql_freeresult($result);
} else {
$config = $cached_config = array();
$sql = 'SELECT config_name, config_value, is_dynamic
FROM ' . $this->table;
$result = $this->db->sql_query($sql);
while ($row = $this->db->sql_fetchrow($result)) {
if (!$row['is_dynamic']) {
$cached_config[$row['config_name']] = $row['config_value'];
}
$config[$row['config_name']] = $row['config_value'];
}
$this->db->sql_freeresult($result);
$cache->put('config', $cached_config);
}
parent::__construct($config);
}
/**
* Remove an existing config setting.
*
* @param string $config_name The name of the config setting you would
* like to remove
* @return null
*/
public function remove($config_name)
{
if (!isset($this->config[$config_name])) {
return;
}
$this->config->delete($config_name);
}
/**
* Delete all notifications older than a certain time
*
* @param int $timestamp Unix timestamp to delete all notifications that were created before
* @param bool $only_read True (default) to only prune read notifications
*/
public function prune_notifications($timestamp, $only_read = true)
{
$sql = 'DELETE FROM ' . $this->notifications_table . '
WHERE notification_time < ' . (int) $timestamp . ($only_read ? ' AND notification_read = 1' : '');
$this->db->sql_query($sql);
$this->config->set('read_notification_last_gc', time(), false);
}
/**
* Releases the lock.
*
* The lock must have been previously obtained, that is, acquire() call
* was issued and returned true.
*
* Note: Attempting to release a lock that is already released,
* that is, calling release() multiple times, is harmless.
*
* @return null
*/
public function release()
{
if ($this->locked) {
$this->config->set_atomic($this->config_name, $this->unique_id, '0', false);
$this->locked = false;
}
}
/**
* {@inheritDoc}
*/
public function run()
{
// Remove old temporary file (perhaps failed uploads?)
$last_valid_timestamp = time() - $this->max_file_age;
try {
$iterator = new \DirectoryIterator($this->plupload_upload_path);
foreach ($iterator as $file) {
if (strpos($file->getBasename(), $this->config['plupload_salt']) !== 0) {
// Skip over any non-plupload files.
continue;
}
if ($file->getMTime() < $last_valid_timestamp) {
@unlink($file->getPathname());
}
}
} catch (\UnexpectedValueException $e) {
add_log('critical', 'LOG_PLUPLOAD_TIDY_FAILED', $this->plupload_upload_path, $e->getMessage(), $e->getTraceAsString());
}
$this->config->set('plupload_last_gc', time(), true);
}
/**
* Remove post from topic and forum statistics
*
* @param $data array Contains information from the topics table about given topic
* @param &$sql_data array Populated with the SQL changes, may be empty at call time
* @return null
*/
public function remove_post_from_statistic($data, &$sql_data)
{
if ($data['post_visibility'] == ITEM_APPROVED) {
$sql_data[$this->topics_table] = (!empty($sql_data[$this->topics_table]) ? $sql_data[$this->topics_table] . ', ' : '') . 'topic_posts_approved = topic_posts_approved - 1';
$sql_data[$this->forums_table] = (!empty($sql_data[$this->forums_table]) ? $sql_data[$this->forums_table] . ', ' : '') . 'forum_posts_approved = forum_posts_approved - 1';
if ($data['post_postcount']) {
$sql_data[$this->users_table] = (!empty($sql_data[$this->users_table]) ? $sql_data[$this->users_table] . ', ' : '') . 'user_posts = user_posts - 1';
}
$this->config->increment('num_posts', -1, false);
} else {
if ($data['post_visibility'] == ITEM_UNAPPROVED || $data['post_visibility'] == ITEM_REAPPROVE) {
$sql_data[FORUMS_TABLE] = ($sql_data[FORUMS_TABLE] ? $sql_data[FORUMS_TABLE] . ', ' : '') . 'forum_posts_unapproved = forum_posts_unapproved - 1';
$sql_data[TOPICS_TABLE] = ($sql_data[TOPICS_TABLE] ? $sql_data[TOPICS_TABLE] . ', ' : '') . 'topic_posts_unapproved = topic_posts_unapproved - 1';
} else {
if ($data['post_visibility'] == ITEM_DELETED) {
$sql_data[FORUMS_TABLE] = ($sql_data[FORUMS_TABLE] ? $sql_data[FORUMS_TABLE] . ', ' : '') . 'forum_posts_softdeleted = forum_posts_softdeleted - 1';
$sql_data[TOPICS_TABLE] = ($sql_data[TOPICS_TABLE] ? $sql_data[TOPICS_TABLE] . ', ' : '') . 'topic_posts_softdeleted = topic_posts_softdeleted - 1';
}
}
}
}
protected function finalise_update()
{
$this->cache->purge();
$this->config->increment('assets_version', 1);
}
/**
* Set config attachment stat values
*
* @param $stats array Array of config key => value pairs to set.
* @return null
*/
public function set_attachment_stats($stats)
{
foreach ($stats as $key => $value) {
$this->config->set($key, $value, true);
}
}
