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proc
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self
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root
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usr
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src
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litespeed-wp-plugin
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6.5.2
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litespeed-cache
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src
/
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files >> //proc/self/root/usr/src/litespeed-wp-plugin/6.5.2/litespeed-cache/src/avatar.cls.php
<?php /** * The avatar cache class * * @since 3.0 * @package LiteSpeed * @subpackage LiteSpeed/inc * @author LiteSpeed Technologies <info@litespeedtech.com> */ namespace LiteSpeed; defined('WPINC') || exit(); class Avatar extends Base { const TYPE_GENERATE = 'generate'; private $_conf_cache_ttl; private $_tb; private $_avatar_realtime_gen_dict = array(); protected $_summary; /** * Init * * @since 1.4 */ public function __construct() { if (!$this->conf(self::O_DISCUSS_AVATAR_CACHE)) { return; } Debug2::debug2('[Avatar] init'); $this->_tb = $this->cls('Data')->tb('avatar'); $this->_conf_cache_ttl = $this->conf(self::O_DISCUSS_AVATAR_CACHE_TTL); add_filter('get_avatar_url', array($this, 'crawl_avatar')); $this->_summary = self::get_summary(); } /** * Check if need db table or not * * @since 3.0 * @access public */ public function need_db() { if ($this->conf(self::O_DISCUSS_AVATAR_CACHE)) { return true; } return false; } /** * Get gravatar URL from DB and regenerate * * @since 3.0 * @access public */ public function serve_static($md5) { global $wpdb; Debug2::debug('[Avatar] is avatar request'); if (strlen($md5) !== 32) { Debug2::debug('[Avatar] wrong md5 ' . $md5); return; } $q = "SELECT url FROM `$this->_tb` WHERE md5=%s"; $url = $wpdb->get_var($wpdb->prepare($q, $md5)); if (!$url) { Debug2::debug('[Avatar] no matched url for md5 ' . $md5); return; } $url = $this->_generate($url); wp_redirect($url); exit(); } /** * Localize gravatar * * @since 3.0 * @access public */ public function crawl_avatar($url) { if (!$url) { return $url; } // Check if its already in dict or not if (!empty($this->_avatar_realtime_gen_dict[$url])) { Debug2::debug2('[Avatar] already in dict [url] ' . $url); return $this->_avatar_realtime_gen_dict[$url]; } $realpath = $this->_realpath($url); if (file_exists($realpath) && time() - filemtime($realpath) <= $this->_conf_cache_ttl) { Debug2::debug2('[Avatar] cache file exists [url] ' . $url); return $this->_rewrite($url, filemtime($realpath)); } if (!strpos($url, 'gravatar.com')) { return $url; } // Send request if (!empty($this->_summary['curr_request']) && time() - $this->_summary['curr_request'] < 300) { Debug2::debug2('[Avatar] Bypass generating due to interval limit [url] ' . $url); return $url; } // Generate immediately $this->_avatar_realtime_gen_dict[$url] = $this->_generate($url); return $this->_avatar_realtime_gen_dict[$url]; } /** * Read last time generated info * * @since 3.0 * @access public */ public function queue_count() { global $wpdb; // If var not exists, mean table not exists // todo: not true if (!$this->_tb) { return false; } $q = "SELECT COUNT(*) FROM `$this->_tb` WHERE dateline<" . (time() - $this->_conf_cache_ttl); return $wpdb->get_var($q); } /** * Get the final URL of local avatar * * Check from db also * * @since 3.0 */ private function _rewrite($url, $time = null) { return LITESPEED_STATIC_URL . '/avatar/' . $this->_filepath($url) . ($time ? '?ver=' . $time : ''); } /** * Generate realpath of the cache file * * @since 3.0 * @access private */ private function _realpath($url) { return LITESPEED_STATIC_DIR . '/avatar/' . $this->_filepath($url); } /** * Get filepath * * @since 4.0 */ private function _filepath($url) { $filename = md5($url) . '.jpg'; if (is_multisite()) { $filename = get_current_blog_id() . '/' . $filename; } return $filename; } /** * Cron generation * * @since 3.0 * @access public */ public static function cron($force = false) { global $wpdb; $_instance = self::cls(); if (!$_instance->queue_count()) { Debug2::debug('[Avatar] no queue'); return; } // For cron, need to check request interval too if (!$force) { if (!empty($_instance->_summary['curr_request']) && time() - $_instance->_summary['curr_request'] < 300) { Debug2::debug('[Avatar] curr_request too close'); return; } } $q = "SELECT url FROM `$_instance->_tb` WHERE dateline < %d ORDER BY id DESC LIMIT %d"; $q = $wpdb->prepare($q, array(time() - $_instance->_conf_cache_ttl, apply_filters('litespeed_avatar_limit', 30))); $list = $wpdb->get_results($q); Debug2::debug('[Avatar] cron job [count] ' . count($list)); foreach ($list as $v) { Debug2::debug('[Avatar] cron job [url] ' . $v->url); $_instance->_generate($v->url); } } /** * Remote generator * * @since 3.0 * @access private */ private function _generate($url) { global $wpdb; // Record the data $file = $this->_realpath($url); // Update request status self::save_summary(array('curr_request' => time())); // Generate $this->_maybe_mk_cache_folder('avatar'); $response = wp_remote_get($url, array('timeout' => 180, 'stream' => true, 'filename' => $file)); Debug2::debug('[Avatar] _generate [url] ' . $url); // Parse response data if (is_wp_error($response)) { $error_message = $response->get_error_message(); file_exists($file) && unlink($file); Debug2::debug('[Avatar] failed to get: ' . $error_message); return $url; } // Save summary data self::save_summary(array( 'last_spent' => time() - $this->_summary['curr_request'], 'last_request' => $this->_summary['curr_request'], 'curr_request' => 0, )); // Update DB $md5 = md5($url); $q = "UPDATE `$this->_tb` SET dateline=%d WHERE md5=%s"; $existed = $wpdb->query($wpdb->prepare($q, array(time(), $md5))); if (!$existed) { $q = "INSERT INTO `$this->_tb` SET url=%s, md5=%s, dateline=%d"; $wpdb->query($wpdb->prepare($q, array($url, $md5, time()))); } Debug2::debug('[Avatar] saved avatar ' . $file); return $this->_rewrite($url); } /** * Handle all request actions from main cls * * @since 3.0 * @access public */ public function handler() { $type = Router::verify_type(); switch ($type) { case self::TYPE_GENERATE: self::cron(true); break; default: break; } Admin::redirect(); } }
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