<?php

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/**

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* The cloudflare CDN class.

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*

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* @since 2.1

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* @package LiteSpeed

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* @subpackage LiteSpeed/src/cdn

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* @author LiteSpeed Technologies <info@litespeedtech.com>

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*/

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namespace LiteSpeed\CDN;

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use LiteSpeed\Base;

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use LiteSpeed\Debug2;

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use LiteSpeed\Router;

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use LiteSpeed\Admin;

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use LiteSpeed\Admin_Display;

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

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/**

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* Class Cloudflare

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*

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* @since 2.1

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*/

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class Cloudflare extends Base {

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const TYPE_PURGE_ALL = 'purge_all';

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const TYPE_GET_DEVMODE = 'get_devmode';

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const TYPE_SET_DEVMODE_ON = 'set_devmode_on';

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const TYPE_SET_DEVMODE_OFF = 'set_devmode_off';

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const ITEM_STATUS = 'status';

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/**

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* Update zone&name based on latest settings

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*

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* @since 3.0

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* @access public

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*/

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public function try_refresh_zone() {

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

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return;

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}

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$zone = $this->fetch_zone();

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if ($zone) {

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$this->cls('Conf')->update(self::O_CDN_CLOUDFLARE_NAME, $zone['name']);

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$this->cls('Conf')->update(self::O_CDN_CLOUDFLARE_ZONE, $zone['id']);

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Debug2::debug("[Cloudflare] Get zone successfully \t\t[ID] " . $zone['id']);

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} else {

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$this->cls('Conf')->update(self::O_CDN_CLOUDFLARE_ZONE, '');

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Debug2::debug('[Cloudflare] ❌ Get zone failed, clean zone');

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}

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}

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/**

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* Get Cloudflare development mode

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*

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* @since 1.7.2

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* @access private

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* @param bool $show_msg Whether to show success/error message.

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*/

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private function get_devmode( $show_msg = true ) {

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Debug2::debug('[Cloudflare] get_devmode');

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$zone = $this->zone();

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if (!$zone) {

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return;

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}

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$url = 'https://api.cloudflare.com/client/v4/zones/' . $zone . '/settings/development_mode';

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$res = $this->cloudflare_call($url, 'GET', false, $show_msg);

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if (!$res) {

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return;

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}

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Debug2::debug('[Cloudflare] get_devmode result ', $res);

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// Make sure is array: #992174

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$curr_status = self::get_option(self::ITEM_STATUS, array());

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if ( ! is_array( $curr_status ) ) {

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$curr_status = array();

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}

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$curr_status['devmode'] = $res['value'];

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$curr_status['devmode_expired'] = (int) $res['time_remaining'] + time();

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// update status

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self::update_option(self::ITEM_STATUS, $curr_status);

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}

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/**

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* Set Cloudflare development mode

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*

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* @since 1.7.2

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* @access private

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* @param string $type The type of development mode to set (on/off).

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*/

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private function set_devmode( $type ) {

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Debug2::debug('[Cloudflare] set_devmode');

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$zone = $this->zone();

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if (!$zone) {

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return;

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}

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$url = 'https://api.cloudflare.com/client/v4/zones/' . $zone . '/settings/development_mode';

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$new_val = self::TYPE_SET_DEVMODE_ON === $type ? 'on' : 'off';

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$data = array( 'value' => $new_val );

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$res = $this->cloudflare_call($url, 'PATCH', $data);

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if (!$res) {

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return;

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}

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$res = $this->get_devmode(false);

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if ($res) {

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$msg = sprintf(__('Notified Cloudflare to set development mode to %s successfully.', 'litespeed-cache'), strtoupper($new_val));

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Admin_Display::success($msg);

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}

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}

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/**

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* Shortcut to purge Cloudflare

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*

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* @since 7.1

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* @access public

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* @param string|bool $reason The reason for purging, or false if none.

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*/

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public static function purge_all( $reason = false ) {

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if ($reason) {

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Debug2::debug('[Cloudflare] purge call because: ' . $reason);

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}

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self::cls()->purge_all_private();

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}

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/**

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* Purge Cloudflare cache

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*

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* @since 1.7.2

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* @access private

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*/

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private function purge_all_private() {

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Debug2::debug('[Cloudflare] purge_all_private');

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$cf_on = $this->conf(self::O_CDN_CLOUDFLARE);

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if (!$cf_on) {

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$msg = __('Cloudflare API is set to off.', 'litespeed-cache');

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Admin_Display::error($msg);

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return;

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}

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$zone = $this->zone();

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if (!$zone) {

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return;

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}

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$url = 'https://api.cloudflare.com/client/v4/zones/' . $zone . '/purge_cache';

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$data = array( 'purge_everything' => true );

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$res = $this->cloudflare_call($url, 'DELETE', $data);

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if ($res) {

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$msg = __('Notified Cloudflare to purge all successfully.', 'litespeed-cache');

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Admin_Display::success($msg);

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}

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}

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/**

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* Get current Cloudflare zone from cfg

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*

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* @since 1.7.2

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* @access private

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*/

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private function zone() {

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$zone = $this->conf(self::O_CDN_CLOUDFLARE_ZONE);

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if (!$zone) {

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$msg = __('No available Cloudflare zone', 'litespeed-cache');

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Admin_Display::error($msg);

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return false;

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}

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return $zone;

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}

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/**

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* Get Cloudflare zone settings

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*

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* @since 1.7.2

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* @access private

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*/

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private function fetch_zone() {

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$kw = $this->conf(self::O_CDN_CLOUDFLARE_NAME);

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$url = 'https://api.cloudflare.com/client/v4/zones?status=active&match=all';

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// Try exact match first

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if ($kw && false !== strpos($kw, '.')) {

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$zones = $this->cloudflare_call($url . '&name=' . $kw, 'GET', false, false);

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if ($zones) {

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Debug2::debug('[Cloudflare] fetch_zone exact matched');

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return $zones[0];

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}

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}

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// Can't find, try to get default one

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$zones = $this->cloudflare_call($url, 'GET', false, false);

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if (!$zones) {

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Debug2::debug('[Cloudflare] fetch_zone no zone');

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return false;

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}

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if (!$kw) {

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Debug2::debug('[Cloudflare] fetch_zone no set name, use first one by default');

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return $zones[0];

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}

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foreach ($zones as $v) {

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if (false !== strpos($v['name'], $kw)) {

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Debug2::debug('[Cloudflare] fetch_zone matched ' . $kw . ' [name] ' . $v['name']);

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return $v;

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}

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}

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// Can't match current name, return default one

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Debug2::debug('[Cloudflare] fetch_zone failed match name, use first one by default');

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return $zones[0];

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}

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/**

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* Cloudflare API

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*

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* @since 1.7.2

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* @access private

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* @param string $url The API URL to call.

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* @param string $method The HTTP method to use (GET, POST, etc.).

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* @param array|bool $data The data to send with the request, or false if none.

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* @param bool $show_msg Whether to show success/error message.

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*/

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private function cloudflare_call( $url, $method = 'GET', $data = false, $show_msg = true ) {

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Debug2::debug("[Cloudflare] cloudflare_call \t\t[URL] $url");

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if (strlen($this->conf(self::O_CDN_CLOUDFLARE_KEY)) === 40) {

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$headers = array(

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'Content-Type' => 'application/json',

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'Authorization' => 'Bearer ' . $this->conf(self::O_CDN_CLOUDFLARE_KEY),

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);

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} else {

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$headers = array(

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'Content-Type' => 'application/json',

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'X-Auth-Email' => $this->conf(self::O_CDN_CLOUDFLARE_EMAIL),

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'X-Auth-Key' => $this->conf(self::O_CDN_CLOUDFLARE_KEY),

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);

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}

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$wp_args = array(

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'method' => $method,

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'headers' => $headers,

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);

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if ($data) {

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if (is_array($data)) {

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$data = wp_json_encode($data);

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}

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$wp_args['body'] = $data;

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}

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$resp = wp_remote_request($url, $wp_args);

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if (is_wp_error($resp)) {

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Debug2::debug('[Cloudflare] error in response');

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if ($show_msg) {

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$msg = __('Failed to communicate with Cloudflare', 'litespeed-cache');

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Admin_Display::error($msg);

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}

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return false;

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}

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$result = wp_remote_retrieve_body($resp);

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$json = \json_decode($result, true);

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if ($json && $json['success'] && $json['result']) {

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Debug2::debug('[Cloudflare] cloudflare_call called successfully');

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if ($show_msg) {

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$msg = __('Communicated with Cloudflare successfully.', 'litespeed-cache');

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Admin_Display::success($msg);

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}

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return $json['result'];

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}

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Debug2::debug("[Cloudflare] cloudflare_call called failed: $result");

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if ($show_msg) {

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$msg = __('Failed to communicate with Cloudflare', 'litespeed-cache');

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Admin_Display::error($msg);

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}

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return false;

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}

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/**

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* Handle all request actions from main cls

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*

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* @since 1.7.2

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* @access public

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*/

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public function handler() {

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$type = Router::verify_type();

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switch ($type) {

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case self::TYPE_PURGE_ALL:

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$this->purge_all_private();

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break;

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case self::TYPE_GET_DEVMODE:

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$this->get_devmode();

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break;

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case self::TYPE_SET_DEVMODE_ON:

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case self::TYPE_SET_DEVMODE_OFF:

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$this->set_devmode($type);

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break;

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default:

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break;

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}

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Admin::redirect();

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}

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}

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