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