class.jetpack-data.php
| 1 | <?php |
| 2 | |
| 3 | class Jetpack_Data { |
| 4 | /** |
| 5 | * Gets locally stored token |
| 6 | * |
| 7 | * @return object|false |
| 8 | */ |
| 9 | public static function get_access_token( $user_id = false ) { |
| 10 | if ( $user_id ) { |
| 11 | if ( !$tokens = Jetpack_Options::get_option( 'user_tokens' ) ) { |
| 12 | return false; |
| 13 | } |
| 14 | if ( $user_id === JETPACK_MASTER_USER ) { |
| 15 | if ( !$user_id = Jetpack_Options::get_option( 'master_user' ) ) { |
| 16 | return false; |
| 17 | } |
| 18 | } |
| 19 | if ( !isset( $tokens[$user_id] ) || !$token = $tokens[$user_id] ) { |
| 20 | return false; |
| 21 | } |
| 22 | $token_chunks = explode( '.', $token ); |
| 23 | if ( empty( $token_chunks[1] ) || empty( $token_chunks[2] ) ) { |
| 24 | return false; |
| 25 | } |
| 26 | if ( $user_id != $token_chunks[2] ) { |
| 27 | return false; |
| 28 | } |
| 29 | $token = "{$token_chunks[0]}.{$token_chunks[1]}"; |
| 30 | } else { |
| 31 | $token = Jetpack_Options::get_option( 'blog_token' ); |
| 32 | if ( empty( $token ) ) { |
| 33 | return false; |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | return (object) array( |
| 38 | 'secret' => $token, |
| 39 | 'external_user_id' => (int) $user_id, |
| 40 | ); |
| 41 | } |
| 42 | |
| 43 | /** |
| 44 | * This function mirrors Jetpack_Data::is_usable_domain() in the WPCOM codebase. |
| 45 | * |
| 46 | * @param $domain |
| 47 | * @param array $extra |
| 48 | * |
| 49 | * @return bool|WP_Error |
| 50 | */ |
| 51 | public static function is_usable_domain( $domain, $extra = array() ) { |
| 52 | |
| 53 | // If it's empty, just fail out. |
| 54 | if ( ! $domain ) { |
| 55 | return new WP_Error( 'fail_domain_empty', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is empty.', 'jetpack' ), $domain ) ); |
| 56 | } |
| 57 | |
| 58 | // None of the explicit localhosts. |
| 59 | $forbidden_domains = array( |
| 60 | 'wordpress.com', |
| 61 | 'localhost', |
| 62 | 'localhost.localdomain', |
| 63 | '127.0.0.1', |
| 64 | 'local.wordpress.dev', // VVV |
| 65 | 'local.wordpress-trunk.dev', // VVV |
| 66 | 'src.wordpress-develop.dev', // VVV |
| 67 | 'build.wordpress-develop.dev', // VVV |
| 68 | ); |
| 69 | if ( in_array( $domain, $forbidden_domains ) ) { |
| 70 | return new WP_Error( 'fail_domain_forbidden', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is in the forbidden array.', 'jetpack' ), $domain ) ); |
| 71 | } |
| 72 | |
| 73 | // No .dev or .local domains |
| 74 | if ( preg_match( '#\.(dev|local)$#i', $domain ) ) { |
| 75 | return new WP_Error( 'fail_domain_tld', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it uses an invalid top level domain.', 'jetpack' ), $domain ) ); |
| 76 | } |
| 77 | |
| 78 | // No WPCOM subdomains |
| 79 | if ( preg_match( '#\.wordpress\.com$#i', $domain ) ) { |
| 80 | return new WP_Error( 'fail_subdomain_wpcom', sprintf( __( 'Domain `%1$s` just failed is_usable_domain check as it is a subdomain of WordPress.com.', 'jetpack' ), $domain ) ); |
| 81 | } |
| 82 | |
| 83 | // If PHP was compiled without support for the Filter module (very edge case) |
| 84 | if ( ! function_exists( 'filter_var' ) ) { |
| 85 | // Just pass back true for now, and let wpcom sort it out. |
| 86 | return true; |
| 87 | } |
| 88 | |
| 89 | // Check the IP to make sure it's pingable. |
| 90 | $ip = gethostbyname( $domain ); |
| 91 | |
| 92 | // Doing this again as I was getting some false positives when gethostbyname() flaked out and returned the domain. |
| 93 | $ip = filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) ? $ip : gethostbyname( $ip ); |
| 94 | |
| 95 | 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( $ip ) ) { |
| 96 | return new WP_Error( 'fail_domain_bad_ip_range', sprintf( __( 'Domain `%1$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 ) ); |
| 97 | } |
| 98 | |
| 99 | return true; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Returns true if the IP address passed in should not be in a reserved range, even if PHP says that it is. |
| 104 | * See: https://bugs.php.net/bug.php?id=66229 and https://github.com/php/php-src/commit/d1314893fd1325ca6aa0831101896e31135a2658 |
| 105 | * |
| 106 | * This function mirrors Jetpack_Data::php_bug_66229_check() in the WPCOM codebase. |
| 107 | */ |
| 108 | public static function php_bug_66229_check( $ip ) { |
| 109 | if ( ! filter_var( $ip, FILTER_VALIDATE_IP ) ) { |
| 110 | return false; |
| 111 | } |
| 112 | |
| 113 | $ip_arr = array_map( 'intval', explode( '.', $ip ) ); |
| 114 | |
| 115 | if ( 128 == $ip_arr[0] && 0 == $ip_arr[1] ) { |
| 116 | return true; |
| 117 | } |
| 118 | |
| 119 | if ( 191 == $ip_arr[0] && 255 == $ip_arr[1] ) { |
| 120 | return true; |
| 121 | } |
| 122 | |
| 123 | return false; |
| 124 | } |
| 125 | } |
| 126 |