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134 lines
3.4 KiB
PHP
134 lines
3.4 KiB
PHP
<?php
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/**
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* Prevents calls to the Credits API.
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* Prevents calls to Gravatar.com.
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*
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* @package FAIR
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*/
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namespace FAIR\Credits;
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use WP_Error;
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const WP_CORE_LATEST_MAJOR_RELEASE = '6.8';
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const JSON_BASE = __DIR__ . '/json/';
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/**
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* Bootstrap.
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*/
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function bootstrap() {
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add_filter( 'pre_http_request', __NAMESPACE__ . '\\replace_credits_api', 10, 3 );
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}
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/**
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* Replace versions 1.0 and 1.1 of the Credits API with local file copies.
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*
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* @param bool|array $value Filtered value, or false to proceed.
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* @param array $parsed_args The request's arguments.
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* @param string $url The request's URL.
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* @return bool|array|WP_Error Replaced value, false to proceed, or WP_Error on failure.
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*/
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function replace_credits_api( $response, array $parsed_args, string $url ) {
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if ( strpos( $url, 'api.wordpress.org/core/credits/' ) === false ) {
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return $response;
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}
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$major_version = get_major_version( $url );
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if ( is_wp_error( $major_version ) ) {
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return $major_version;
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}
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$credits = get_credits( $major_version );
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if ( is_wp_error( $credits ) ) {
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return $credits;
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}
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// Credits API 1.0 returns a serialized value rather than JSON.
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if ( strpos( $url, 'credits/1.0' ) !== false ) {
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$credits = serialize( json_decode( $credits, true ) );
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}
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return get_response( $credits );
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}
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/**
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* Get the major version from the URL.
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*
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* Falls back to the currently installed major version if the version is not found in the URL.
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*
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* @param string $url The request's URL.
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* @return string|WP_Error The major version string, or WP_Error on failure.
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*/
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function get_major_version( string $url ) {
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// wp_get_wp_version() was introduced in 6.7.
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$wp_version = function_exists( 'wp_get_wp_version' ) ? wp_get_wp_version() : $GLOBALS['wp_version'];
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$version_parts = explode( '.', $wp_version );
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$installed_major = $version_parts[0] . '.' . $version_parts[1];
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$query = parse_url( $url, PHP_URL_QUERY );
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if ( ! is_string( $query ) ) {
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return $installed_major;
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}
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parse_str( $query, $params );
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if ( ! isset( $params['version'] ) ) {
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return $installed_major;
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}
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// Only the X.X major version is used by the Credits API.
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if ( ! preg_match( '/^([0-9]+\.[0-9])/', $params['version'], $matches ) ) {
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return new WP_Error(
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'invalid_version',
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sprintf(
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/* translators: %s: The version string. */
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__( '%s is not a valid version string.', 'fair' ),
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$params['version']
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)
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);
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}
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return $matches[1];
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}
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/**
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* Get the credits for a WordPress major version.
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*
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* @param string $major_version The WordPress major version string.
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* @return string|WP_Error The credits in JSON format, or WP_Error on failure.
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*/
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function get_credits( string $major_version ) {
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$file = JSON_BASE . $major_version . '.json';
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if ( file_exists( $file ) ) {
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return trim( file_get_contents( $file ) );
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}
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// The Credits API always falls back to the latest major version.
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$fallback_file = JSON_BASE . WP_CORE_LATEST_MAJOR_RELEASE . '.json';
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if ( file_exists( $fallback_file ) ) {
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return trim( file_get_contents( $fallback_file ) );
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}
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return new WP_Error(
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'no_credits_found',
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__( 'No credits could be found.', 'fair' )
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);
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}
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/**
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* Get a fake response.
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*
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* @param string $body The response's body.
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* @return array The response.
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*/
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function get_response( string $body ) : array {
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return [
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'response' => [
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'code' => 200,
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'message' => 'OK',
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],
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'body' => $body,
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'headers' => [],
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'cookies' => [],
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'http_response_code' => 200,
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];
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}
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