260 lines
9.2 KiB
PHP
260 lines
9.2 KiB
PHP
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<?php
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namespace ShortPixel;
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if ( ! defined( 'ABSPATH' ) ) {
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exit; // Exit if accessed directly.
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}
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use ShortPixel\ShortPixelLogger\ShortPixelLogger as Log;
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use ShortPixel\Notices\NoticeController as Notices;
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// @todo Clean up unused lines in this file. (cloudflare)
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class CloudFlareAPI {
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private $email; // $_cloudflareEmail
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private $authkey; // $_cloudflareAuthKey
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private $zone_id; // $_cloudflareZoneID
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private $token;
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private $setup_done = false;
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private $config_ok = false;
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private $use_token = false;
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private $cf_exists = true;
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private $api_url = 'https://api.cloudflare.com/client/v4/zones/';
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/*public function __construct($cloudflareEmail, $cloudflareAuthKey, $cloudflareZoneID) {
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$this->set_up($cloudflareEmail, $cloudflareAuthKey, $cloudflareZoneID);
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$this->set_up_required_hooks();
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} */
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public function __construct()
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{
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add_action('shortpixel/image/optimised', array( $this, 'check_cloudflare' ), 10 );
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add_action('shortpixel/image/before_restore', array($this, 'check_cloudflare'), 10);
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}
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public function setup()
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{
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$this->email = \wpSPIO()->settings()->cloudflareEmail;
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$this->authkey = \wpSPIO()->settings()->cloudflareAuthKey;
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$this->zone_id = (defined('SHORTPIXEL_CFZONE') ) ? SHORTPIXEL_CFZONE : \wpSPIO()->settings()->cloudflareZoneID;
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$this->token = (defined('SHORTPIXEL_CFTOKEN') ) ? SHORTPIXEL_CFTOKEN : \wpSPIO()->settings()->cloudflareToken;
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if (! empty($this->token) && ! empty($this->zone_id))
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{
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$this->use_token = true;
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$this->config_ok = true;
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}
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elseif(! empty($this->email) && ! empty($this->authkey) && ! empty($this->zone_id))
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{
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$this->config_ok = true;
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}
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if (empty($this->zone_id))
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{
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//Log::addWarn('CF - ZoneID setting is obligatory');
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}
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$this->setup_done = true;
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}
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public function check_cloudflare($imageObj)
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{
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if (! $this->setup_done)
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$this->setup();
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if ($this->config_ok)
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{
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if (! function_exists('curl_init'))
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{
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Log::addWarn('Cloudflare Config OK, but no CURL to request');
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}
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else
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$this->start_cloudflare_cache_purge_process($imageObj);
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}
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}
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/**
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* @desc Start the process of purging all cache for image URL (includes all the image sizes/thumbnails)f1
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*
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* @param $image_id - WordPress image media ID
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*/
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private function start_cloudflare_cache_purge_process( $imageItem ) {
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// Fetch CloudFlare API credentials
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/*$cloudflare_auth_email = $this->_cloudflareEmail;
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$cloudflare_auth_key = $this->_cloudflareAuthKey;
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$cloudflare_zone_id = $this->_cloudflareZoneID; */
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// Fetch all WordPress install possible thumbnail sizes ( this will not return the full size option )
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$fetch_images_sizes = get_intermediate_image_sizes();
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$purge_array = array();
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$prepare_request_info = array();
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// if full image size tag is missing, we need to add it
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if ( ! in_array( 'full', $fetch_images_sizes ) ) {
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$fetch_images_sizes[] = 'full';
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}
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/*
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if ( $imageItem->getType() == 'media' ) {
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// The item is a Media Library item, fetch the URL for each image size
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foreach ( $fetch_images_sizes as $size ) {
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// 0 - url; 1 - width; 2 - height
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$image_attributes = wp_get_attachment_image_src( $image_id, $size );
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// Append to the list
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array_push( $purge_array, $image_attributes[0] );
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}
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} else {
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// The item is a Custom Media item
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$fs = \wpSPIO()->filesystem();
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$item = $fs->getImage( $image_id, 'custom' );
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$item_url = $fs->pathToUrl( $item );
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array_push( $purge_array, $item_url );
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}
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*/
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$fs = \wpSPIO()->filesystem();
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$image_paths[] = $imageItem->getURL();
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if ($imageItem->getWebp() !== false)
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$image_paths[] = $fs->pathToUrl($imageItem->getWebp());
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if ($imageItem->getAvif() !== false)
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$image_paths[] = $fs->pathToUrl($imageItem->getAvif());
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if ($imageItem->get('type') == 'media')
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{
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if ($imageItem->hasOriginal())
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{
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$originalFile = $imageItem->getOriginalFile();
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$image_paths[] = $originalFile->getURL();
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if ($originalFile->getWebp() !== false)
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$image_paths[] = $fs->pathToUrl($originalFile->getWebp());
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if ($originalFile->getAvif() !== false)
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$image_paths[] = $fs->pathToUrl($originalFile->getAvif());
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}
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if (count($imageItem->get('thumbnails')) > 0)
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{
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foreach($imageItem->get('thumbnails') as $thumbObj)
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{
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$image_paths[] = $thumbObj->getURL();
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if ($thumbObj->getWebp() !== false)
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$image_paths[] = $fs->pathToUrl($thumbObj->getWebp());
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if ($thumbObj->getAvif() !== false)
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$image_paths[] = $fs->pathToUrl($thumbObj->getAvif());
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}
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}
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}
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if ( ! empty( $image_paths ) ) {
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//$prepare_request_info['files'] = $image_url_for_purge;
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// Encode the data into JSON before send
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$dispatch_purge_info = function_exists('wp_json_encode') ? wp_json_encode( $prepare_request_info ) : json_encode( $prepare_request_info );
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// Set headers for remote API to authenticate for the request
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/* $dispatch_header = array(
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'X-Auth-Email: ' . $cloudflare_auth_email,
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'X-Auth-Key: ' . $cloudflare_auth_key,
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'Content-Type: application/json'
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); */
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$response = $this->delete_url_cache_request_action($image_paths);
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// Start the process of cache purge
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/* $request_response = $this->delete_url_cache_request_action( "https://api.cloudflare.com/client/v4/zones/" . $cloudflare_zone_id . "/purge_cache", $dispatch_purge_info, $dispatch_header ); */
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} else {
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// No use in running the process
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}
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}
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/**
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* @desc Send a delete cache request to CloudFlare for specified URL(s)
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* Implements -> https://api.cloudflare.com/#zone-purge-files-by-url
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* @return array|mixed|object - Request response as decoded JSON
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*/
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private function delete_url_cache_request_action( $files ) {
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$request_url = $this->api_url . $this->zone_id . '/purge_cache';
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$postfields = array('files' => $files);
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return $this->doRequest($request_url, $postfields);
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}
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private function addAuth($headers)
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{
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if ($this->use_token)
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{
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$headers['authorization'] = 'Authorization: Bearer ' . $this->token;
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}
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else
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{
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$headers['x-auth-email'] = 'X-Auth-Email: ' . $this->email;
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$headers['x-auth-key'] = 'X-Auth-Key: ' . $this->authkey;
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}
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return $headers;
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}
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/**
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* @param $url String . Api Url to target with zone_id and acton
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* @param $postfields Array . Fields for POST
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* @param $headers Valid HTTP headers to add.
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*/
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private function doRequest($url, $postfields, $headers = array())
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{
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if(!function_exists('curl_init'))
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{ return false; }
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$curl_connection = curl_init();
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$default_headers =
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array('content_type' => 'Content-Type: application/json');
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$default_headers = $this->addAuth($default_headers);
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$headers = wp_parse_args($headers, $default_headers);
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$headers = array_filter(array_values($headers));
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$postfields = wp_json_encode($postfields);
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curl_setopt( $curl_connection, CURLOPT_URL, $url );
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curl_setopt( $curl_connection, CURLOPT_CUSTOMREQUEST, "POST" );
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curl_setopt( $curl_connection, CURLOPT_POSTFIELDS, $postfields);
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curl_setopt( $curl_connection, CURLOPT_RETURNTRANSFER, true );
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curl_setopt( $curl_connection, CURLOPT_HTTPHEADER, $headers );
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curl_setopt( $curl_connection, CURLOPT_CONNECTTIMEOUT, 5); // in seconds!
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curl_setopt( $curl_connection, CURLOPT_TIMEOUT, 10); // in seconds!
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curl_setopt( $curl_connection, CURLOPT_USERAGENT, '"User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.87 Safari/537.36"' );
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$request_response = curl_exec( $curl_connection );
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$result = json_decode( $request_response, true );
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curl_close( $curl_connection );
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if ( ! is_array( $result ) ) {
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Log::addWarn( 'ShortPixel - CloudFlare: The CloudFlare API is not responding correctly', $result);
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} elseif ( isset( $result['success'] ) && isset( $result['errors'] ) && false === (bool) $result['success'] ) {
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Log::addWarn( 'ShortPixel - CloudFlare, Error messages: '
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. (isset($result['errors']['message']) ? $result['errors']['message'] : json_encode($result['errors'])) );
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} else {
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Log::addInfo('ShortPixel - CloudFlare successfully requested clear cache for: ', array($postfields));
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}
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return $result;
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}
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}
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$c = new CloudFlareAPI(); // monitor hook.
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