370 lines
8.5 KiB
PHP
370 lines
8.5 KiB
PHP
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<?php
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namespace W3TC;
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/**
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* CloudFlare API
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*/
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class Extension_CloudFlare_Api {
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static private $_root_uri = 'https://api.cloudflare.com/client/v4';
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private $_email;
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private $_key;
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private $_zone_id;
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private $_timelimit_api_request;
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function __construct( $config ) {
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$this->_email = $config['email'];
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$this->_key = $config['key'];
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$this->_zone_id =
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( isset( $config['zone_id'] ) ? $config['zone_id'] : '' );
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if ( !isset( $config['timelimit_api_request'] ) ||
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$config['timelimit_api_request'] < 1 )
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$this->_timelimit_api_request = 30;
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else
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$this->_timelimit_api_request = $config['timelimit_api_request'];
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}
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/**
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* Makes external event request
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*
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* @param string $type
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* @param string $value
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* @return array
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*/
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public function external_event( $type, $value ) {
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$url = sprintf( 'https://www.cloudflare.com/ajax/external-event.html?' .
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'u=%s&tkn=%s&evnt_t=%s&evnt_v=%s',
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urlencode( $this->_email ), urlencode( $this->_key ),
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urlencode( $type ), urlencode( $value ) );
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$response = Util_Http::get( $url );
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if ( !is_wp_error( $response ) ) {
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return json_decode( $response['body'] );
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}
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return null;
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}
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/**
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* Check
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*
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* @throws Util_WpFile_FilesystemOperationException
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* @throws FileOperationException
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*/
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public function get_ip_ranges() {
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$data = array();
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$response = Util_Http::get( 'https://www.cloudflare.com/ips-v4' );
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if ( !is_wp_error( $response ) ) {
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$ip4_data = $response['body'];
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$ip4_data = explode( "\n", $ip4_data );
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$data['ip4'] = $ip4_data;
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}
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$response = Util_Http::get( 'https://www.cloudflare.com/ips-v6' );
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if ( !is_wp_error( $response ) ) {
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$ip6_data = $response['body'];
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$ip6_data = explode( "\n", $ip6_data );
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$data['ip6'] = $ip6_data;
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}
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return $data;
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}
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public function zones($page = 1) {
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return $this->_wp_remote_request_with_meta( 'GET',
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self::$_root_uri . '/zones?page=' . urlencode($page) );
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}
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public function zone($id) {
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$a = $this->_wp_remote_request( 'GET',
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self::$_root_uri . '/zones/' . $id );
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return $a;
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}
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public function zone_settings() {
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$a = $this->_wp_remote_request( 'GET',
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self::$_root_uri . '/zones/' . $this->_zone_id . '/settings' );
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$by_id = array();
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foreach ( $a as $i ) {
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$by_id[$i['id']] = $i;
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}
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return $by_id;
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}
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public function zone_setting_set( $name, $value ) {
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return $this->_wp_remote_request( 'PATCH',
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self::$_root_uri . '/zones/' . $this->_zone_id . '/settings/' . $name,
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json_encode( array( 'value' => $value ) ) );
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}
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/**
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* Prepares the analytics dashboard widget query to be performed via the CF GraphQL API
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*
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* @throws Exception
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* @return array
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*/
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public function analytics_dashboard( $start, $end, $type = 'day' ) {
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$dataset = 'httpRequests1dGroups';
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$datetime_filter = 'date';
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if($type === 'hour') {
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$dataset = 'httpRequests1hGroups';
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$datetime_filter = 'datetime';
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}
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return $this->_wp_remote_request_graphql( 'POST',
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self::$_root_uri . '/graphql',
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"{ \"query\": \"query {
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viewer {
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zones(filter: {zoneTag: \\\"" . $this->_zone_id . "\\\"}) {
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" . $dataset . "(
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orderBy: [" . $datetime_filter . "_ASC],
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limit: 100,
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filter: {
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" . $datetime_filter . "_geq: \\\"" . $start . "\\\",
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" . $datetime_filter . "_lt: \\\"" . $end . "\\\"
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}
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) {
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dimensions {
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" . $datetime_filter . "
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}
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sum {
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bytes
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cachedBytes
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cachedRequests
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pageViews
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requests
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threats
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}
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uniq {
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uniques
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}
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}
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}
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}
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}\"}"
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);
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}
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public function purge() {
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return $this->_wp_remote_request( 'DELETE',
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self::$_root_uri . '/zones/' . $this->_zone_id . '/purge_cache',
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'{"purge_everything":true}' );
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}
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/**
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* Performs the CF API request
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*
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* @throws Exception
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* @return array
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*/
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private function _wp_remote_request( $method, $url, $body = array() ) {
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if ( empty( $this->_email ) || empty( $this->_key ) ) {
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throw new \Exception('Not authenticated');
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}
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$headers = $this->_generate_wp_remote_request_headers();
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$result = wp_remote_request( $url, array(
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'method' => $method,
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'headers' => $headers,
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'timeout' => $this->_timelimit_api_request,
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'body' => $body
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) );
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if ( is_wp_error( $result ) ) {
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throw new \Exception( 'Failed to reach API endpoint' );
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}
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$response_json = @json_decode( $result['body'], true );
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if ( is_null( $response_json ) || !isset( $response_json['success'] ) ) {
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throw new \Exception(
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'Failed to reach API endpoint, got unexpected response ' .
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str_replace( '<', '.', str_replace( '>', '.', $result['body'] ) ) );
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}
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if ( !$response_json['success'] ) {
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$errors = array();
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if ( isset( $response_json['errors'] ) ) {
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foreach ( $response_json['errors'] as $e ) {
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if ( !empty( $e['message'] ) )
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$errors[] = $e['message'];
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}
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}
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if ( empty( $errors ) )
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$errors[] = 'Request failed';
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throw new \Exception( implode( ', ', $errors ) );
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}
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if ( isset( $response_json['result'] ) ) {
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return $response_json['result'];
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}
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return array();
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}
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/**
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* Performs the CF API request with meta
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*
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* @throws Exception
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* @return array
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*/
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private function _wp_remote_request_with_meta( $method, $url, $body = array() ) {
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if ( empty( $this->_email ) || empty( $this->_key ) ) {
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throw new \Exception('Not authenticated');
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}
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$headers = $this->_generate_wp_remote_request_headers();
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$result = wp_remote_request( $url, array(
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'method' => $method,
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'headers' => $headers,
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'timeout' => $this->_timelimit_api_request,
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'body' => $body
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) );
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if ( is_wp_error( $result ) )
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throw new \Exception( 'Failed to reach API endpoint' );
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$response_json = @json_decode( $result['body'], true );
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if ( is_null( $response_json ) || !isset( $response_json['success'] ) ) {
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throw new \Exception(
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'Failed to reach API endpoint, got unexpected response ' .
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$result['body'] );
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}
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if ( !$response_json['success'] ) {
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$errors = array();
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if ( isset( $response_json['errors'] ) ) {
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foreach ( $response_json['errors'] as $e ) {
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if ( !empty( $e['message'] ) )
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$errors[] = $e['message'];
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}
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}
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if ( empty( $errors ) )
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$errors[] = 'Request failed';
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throw new \Exception( implode( ', ', $errors ) );
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}
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if ( isset( $response_json['result'] ) ) {
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return $response_json;
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}
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return array();
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}
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/**
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* Performs the CF GraphQL API request
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*
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* @throws Exception
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* @return array
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*/
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private function _wp_remote_request_graphql( $method, $url, $body ) {
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if ( empty( $this->_email ) || empty( $this->_key ) ) {
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throw new \Exception('Not authenticated');
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}
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$headers = $this->_generate_wp_remote_request_headers();
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$body = preg_replace( '/\s\s+/', ' ', $body );
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$result = wp_remote_request( $url, array(
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'method' => $method,
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'headers' => $headers,
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'timeout' => $this->_timelimit_api_request,
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'body' => $body
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) );
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if ( is_wp_error( $result ) ) {
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throw new \Exception( 'Failed to reach API endpoint' );
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}
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$response_json = @json_decode( $result['body'], true );
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if ( is_null( $response_json ) ) {
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throw new \Exception(
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'Failed to reach API endpoint, got unexpected response ' .
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str_replace( '<', '.', str_replace( '>', '.', $result['body'] ) ) );
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}
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if ( isset( $response_json['errors'] ) ) {
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$errors = array();
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foreach ( $response_json['errors'] as $e ) {
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if ( !empty( $e['message'] ) )
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$errors[] = $e['message'];
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}
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if ( empty( $errors ) )
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$errors[] = 'Request failed';
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throw new \Exception( implode( ', ', $errors ) );
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}
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if ( isset( $response_json['data'] ) ) {
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return $response_json['data'];
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}
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return array();
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}
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/**
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* Generates the appropriate request headers for CF API requests based on token or global key presence
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*
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* @since 2.2.1
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*
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* @throws Exception
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* @return array
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*/
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private function _generate_wp_remote_request_headers() {
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if ( empty( $this->_email ) || empty( $this->_key ) ) {
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throw new \Exception('Missing authentication email and/or API token / global key');
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}
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$headers = array();
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// CF API Token
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if( strlen( $this->_key ) == 40 ) {
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$headers = array(
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'Content-Type' => 'application/json',
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'Authorization' => 'Bearer ' . $this->_key
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);
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}
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// CF Legacy API Global Key
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else if ( strlen( $this->_key ) == 37 ) {
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$headers = array(
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'Content-Type' => 'application/json',
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'X-Auth-Key' => $this->_key,
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'X-Auth-Email' => $this->_email
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);
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}
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else {
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throw new \Exception('Improper API token / global key length');
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}
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return $headers;
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}
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}
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