132 lines
3.6 KiB
PHP
132 lines
3.6 KiB
PHP
<?php
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namespace Activitypub;
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use WP_Error;
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use Activitypub\Collection\Users;
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/**
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* ActivityPub HTTP Class
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*
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* @author Matthias Pfefferle
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*/
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class Http {
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/**
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* Send a POST Request with the needed HTTP Headers
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*
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* @param string $url The URL endpoint
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* @param string $body The Post Body
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* @param int $user_id The WordPress User-ID
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*
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* @return array|WP_Error The POST Response or an WP_ERROR
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*/
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public static function post( $url, $body, $user_id ) {
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\do_action( 'activitypub_pre_http_post', $url, $body, $user_id );
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$date = \gmdate( 'D, d M Y H:i:s T' );
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$digest = Signature::generate_digest( $body );
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$signature = Signature::generate_signature( $user_id, 'post', $url, $date, $digest );
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$wp_version = \get_bloginfo( 'version' );
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/**
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* Filter the HTTP headers user agent.
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*
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* @param string $user_agent The user agent string.
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*/
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$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
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$args = array(
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'timeout' => 100,
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'limit_response_size' => 1048576,
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'redirection' => 3,
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'user-agent' => "$user_agent; ActivityPub",
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'headers' => array(
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'Accept' => 'application/activity+json',
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'Content-Type' => 'application/activity+json',
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'Digest' => $digest,
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'Signature' => $signature,
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'Date' => $date,
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),
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'body' => $body,
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);
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$response = \wp_safe_remote_post( $url, $args );
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$code = \wp_remote_retrieve_response_code( $response );
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if ( $code >= 400 ) {
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$response = new WP_Error( $code, __( 'Failed HTTP Request', 'activitypub' ), array( 'status' => $code ) );
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}
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\do_action( 'activitypub_safe_remote_post_response', $response, $url, $body, $user_id );
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return $response;
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}
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/**
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* Send a GET Request with the needed HTTP Headers
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*
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* @param string $url The URL endpoint
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* @param int $user_id The WordPress User-ID
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*
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* @return array|WP_Error The GET Response or an WP_ERROR
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*/
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public static function get( $url ) {
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\do_action( 'activitypub_pre_http_get', $url );
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$date = \gmdate( 'D, d M Y H:i:s T' );
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$signature = Signature::generate_signature( Users::APPLICATION_USER_ID, 'get', $url, $date );
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$wp_version = \get_bloginfo( 'version' );
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/**
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* Filter the HTTP headers user agent.
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*
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* @param string $user_agent The user agent string.
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*/
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$user_agent = \apply_filters( 'http_headers_useragent', 'WordPress/' . $wp_version . '; ' . \get_bloginfo( 'url' ) );
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$args = array(
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'timeout' => apply_filters( 'activitypub_remote_get_timeout', 100 ),
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'limit_response_size' => 1048576,
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'redirection' => 3,
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'user-agent' => "$user_agent; ActivityPub",
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'headers' => array(
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'Accept' => 'application/activity+json',
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'Content-Type' => 'application/activity+json',
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'Signature' => $signature,
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'Date' => $date,
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),
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);
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$response = \wp_safe_remote_get( $url, $args );
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$code = \wp_remote_retrieve_response_code( $response );
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if ( $code >= 400 ) {
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$response = new WP_Error( $code, __( 'Failed HTTP Request', 'activitypub' ), array( 'status' => $code ) );
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}
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\do_action( 'activitypub_safe_remote_get_response', $response, $url );
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return $response;
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}
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/**
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* Check for URL for Tombstone.
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*
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* @param string $url The URL to check.
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*
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* @return bool True if the URL is a tombstone.
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*/
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public static function is_tombstone( $url ) {
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\do_action( 'activitypub_pre_http_is_tombstone', $url );
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$response = \wp_safe_remote_get( $url );
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$code = \wp_remote_retrieve_response_code( $response );
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if ( in_array( (int) $code, array( 404, 410 ), true ) ) {
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return true;
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}
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return false;
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}
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}
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