<?php

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/**

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* The localization class.

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*

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* @since 3.3

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*/

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namespace LiteSpeed;

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defined('WPINC') || exit();

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class Localization extends Base

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{

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const LOG_TAG = '🛍️';

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/**

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* Init optimizer

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*

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* @since 3.0

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* @access protected

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*/

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public function init()

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{

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add_filter('litespeed_buffer_finalize', array($this, 'finalize'), 23); // After page optm

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}

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/**

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* Localize Resources

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*

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* @since 3.3

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*/

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public function serve_static($uri)

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{

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$url = base64_decode($uri);

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if (!$this->conf(self::O_OPTM_LOCALIZE)) {

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// wp_redirect( $url );

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exit('Not supported');

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}

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if (substr($url, -3) !== '.js') {

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// wp_redirect( $url );

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// exit( 'Not supported ' . $uri );

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}

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$match = false;

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$domains = $this->conf(self::O_OPTM_LOCALIZE_DOMAINS);

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foreach ($domains as $v) {

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if (!$v || strpos($v, '#') === 0) {

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continue;

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}

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$type = 'js';

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$domain = $v;

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// Try to parse space split value

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if (strpos($v, ' ')) {

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$v = explode(' ', $v);

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if (!empty($v[1])) {

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$type = strtolower($v[0]);

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$domain = $v[1];

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}

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}

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if (strpos($domain, 'https://') !== 0) {

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continue;

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}

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if ($type != 'js') {

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continue;

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}

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// if ( strpos( $url, $domain ) !== 0 ) {

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if ($url != $domain) {

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continue;

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}

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$match = true;

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break;

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}

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if (!$match) {

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// wp_redirect( $url );

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exit('Not supported2');

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}

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header('Content-Type: application/javascript');

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// Generate

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$this->_maybe_mk_cache_folder('localres');

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$file = $this->_realpath($url);

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self::debug('localize [url] ' . $url);

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$response = wp_remote_get($url, array('timeout' => 180, 'stream' => true, 'filename' => $file));

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// Parse response data

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if (is_wp_error($response)) {

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$error_message = $response->get_error_message();

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file_exists($file) && unlink($file);

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self::debug('failed to get: ' . $error_message);

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wp_redirect($url);

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exit();

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}

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$url = $this->_rewrite($url);

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wp_redirect($url);

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exit();

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}

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/**

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* Get the final URL of local avatar

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*

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* @since 4.5

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*/

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private function _rewrite($url)

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{

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return LITESPEED_STATIC_URL . '/localres/' . $this->_filepath($url);

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}

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/**

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* Generate realpath of the cache file

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*

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* @since 4.5

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* @access private

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*/

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private function _realpath($url)

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{

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return LITESPEED_STATIC_DIR . '/localres/' . $this->_filepath($url);

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}

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/**

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* Get filepath

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*

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* @since 4.5

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*/

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private function _filepath($url)

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{

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$filename = md5($url) . '.js';

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if (is_multisite()) {

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$filename = get_current_blog_id() . '/' . $filename;

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}

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return $filename;

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}

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/**

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* Localize JS/Fonts

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*

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* @since 3.3

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* @access public

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*/

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public function finalize($content)

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{

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if (is_admin()) {

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return $content;

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}

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if (!$this->conf(self::O_OPTM_LOCALIZE)) {

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return $content;

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}

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$domains = $this->conf(self::O_OPTM_LOCALIZE_DOMAINS);

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if (!$domains) {

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return $content;

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}

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foreach ($domains as $v) {

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if (!$v || strpos($v, '#') === 0) {

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continue;

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}

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$type = 'js';

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$domain = $v;

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// Try to parse space split value

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if (strpos($v, ' ')) {

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$v = explode(' ', $v);

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if (!empty($v[1])) {

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$type = strtolower($v[0]);

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$domain = $v[1];

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}

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}

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if (strpos($domain, 'https://') !== 0) {

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continue;

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}

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if ($type != 'js') {

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continue;

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}

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$content = str_replace($domain, LITESPEED_STATIC_URL . '/localres/' . base64_encode($domain), $content);

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}

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return $content;

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}

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}

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