125 lines
4 KiB
PHP
125 lines
4 KiB
PHP
<?php
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class Jetpack_Data {
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/**
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* Gets locally stored token
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*
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* @return object|false
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*/
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public static function get_access_token( $user_id = false ) {
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if ( $user_id ) {
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if ( !$tokens = Jetpack_Options::get_option( 'user_tokens' ) ) {
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return false;
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}
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if ( $user_id === JETPACK_MASTER_USER ) {
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if ( !$user_id = Jetpack_Options::get_option( 'master_user' ) ) {
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return false;
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}
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}
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if ( !isset( $tokens[$user_id] ) || !$token = $tokens[$user_id] ) {
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return false;
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}
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$token_chunks = explode( '.', $token );
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if ( empty( $token_chunks[1] ) || empty( $token_chunks[2] ) ) {
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return false;
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}
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if ( $user_id != $token_chunks[2] ) {
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return false;
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}
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$token = "{$token_chunks[0]}.{$token_chunks[1]}";
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} else {
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$token = Jetpack_Options::get_option( 'blog_token' );
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if ( empty( $token ) ) {
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return false;
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}
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}
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return (object) array(
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'secret' => $token,
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'external_user_id' => (int) $user_id,
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);
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}
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/**
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* This function mirrors Jetpack_Data::is_usable_domain() in the WPCOM codebase.
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*
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* @param $domain
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* @param array $extra
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*
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* @return bool|WP_Error
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*/
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public static function is_usable_domain( $domain, $extra = array() ) {
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// If it's empty, just fail out.
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if ( ! $domain ) {
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return new WP_Error( 'fail_domain_empty', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is empty.', 'jetpack' ), $domain ) );
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}
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// None of the explicit localhosts.
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$forbidden_domains = array(
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'wordpress.com',
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'localhost',
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'localhost.localdomain',
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'127.0.0.1',
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'local.wordpress.dev', // VVV
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'local.wordpress-trunk.dev', // VVV
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'src.wordpress-develop.dev', // VVV
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'build.wordpress-develop.dev', // VVV
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);
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if ( in_array( $domain, $forbidden_domains ) ) {
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return new WP_Error( 'fail_domain_forbidden', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is in the forbidden array.', 'jetpack' ), $domain ) );
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}
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// No .dev or .local domains
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if ( preg_match( '#\.(dev|local)$#i', $domain ) ) {
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return new WP_Error( 'fail_domain_tld', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it uses an invalid top level domain.', 'jetpack' ), $domain ) );
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}
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// No WPCOM subdomains
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if ( preg_match( '#\.wordpress\.com$#i', $domain ) ) {
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return new WP_Error( 'fail_subdomain_wpcom', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is a subdomain of WordPress.com.', 'jetpack' ), $domain ) );
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}
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// If PHP was compiled without support for the Filter module (very edge case)
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if ( ! function_exists( 'filter_var' ) ) {
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// Just pass back true for now, and let wpcom sort it out.
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return true;
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}
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// Check the IP to make sure it's pingable.
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$ip = gethostbyname( $domain );
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// Doing this again as I was getting some false positives when gethostbyname() flaked out and returned the domain.
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$ip = filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) ? $ip : gethostbyname( $ip );
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if ( ! filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE | FILTER_FLAG_IPV4 ) && ! self::php_bug_66229_check( $ip ) ) {
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return new WP_Error( 'fail_domain_bad_ip_range', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as its IP `%2$s` is either invalid, or in a reserved or private range.', 'jetpack' ), $domain, $ip ) );
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}
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return true;
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}
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/**
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* Returns true if the IP address passed in should not be in a reserved range, even if PHP says that it is.
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* See: https://bugs.php.net/bug.php?id=66229 and https://github.com/php/php-src/commit/d1314893fd1325ca6aa0831101896e31135a2658
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*
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* This function mirrors Jetpack_Data::php_bug_66229_check() in the WPCOM codebase.
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*/
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public static function php_bug_66229_check( $ip ) {
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if ( ! filter_var( $ip, FILTER_VALIDATE_IP ) ) {
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return false;
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}
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$ip_arr = array_map( 'intval', explode( '.', $ip ) );
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if ( 128 == $ip_arr[0] && 0 == $ip_arr[1] ) {
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return true;
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}
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if ( 191 == $ip_arr[0] && 255 == $ip_arr[1] ) {
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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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