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wp_sanitize_redirect › WordPress Function
Since2.3.0
Deprecatedn/a
› wp_sanitize_redirect ( $location )
Parameters: |
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Returns: |
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Defined at: |
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Codex: |
Sanitizes a URL for use in a redirect.
Related Functions: wp_safe_redirect, wp_validate_redirect, wp_redirect, sanitize_user_object, wpmu_admin_do_redirect
Source
function wp_sanitize_redirect( $location ) {
// Encode spaces.
$location = str_replace( ' ', '%20', $location );
$regex = '/
(
(?: [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx
| \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2
| [\xE1-\xEC][\x80-\xBF]{2}
| \xED[\x80-\x9F][\x80-\xBF]
| [\xEE-\xEF][\x80-\xBF]{2}
| \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3
| [\xF1-\xF3][\x80-\xBF]{3}
| \xF4[\x80-\x8F][\x80-\xBF]{2}
){1,40} # ...one or more times
)/x';
$location = preg_replace_callback( $regex, '_wp_sanitize_utf8_in_redirect', $location );
$location = preg_replace( '|[^a-z0-9-~+_.?#=&;,/:%!*\[\]()@]|i', '', $location );
$location = wp_kses_no_null( $location );
// Remove %0D and %0A from location.
$strip = array( '%0d', '%0a', '%0D', '%0A' );
return _deep_replace( $strip, $location );
}
/**
* URL encodes UTF-8 characters in a URL.
*
* @ignore
* @since 4.2.0
* @access private
*
* @see wp_sanitize_redirect()
*
* @param array $matches RegEx matches against the redirect location.
* @return string URL-encoded version of the first RegEx match.
*/
function _wp_sanitize_utf8_in_redirect( $matches ) {
return urlencode( $matches[0] );
}
endif;
if ( ! function_exists( 'wp_safe_redirect' ) ) :
/**
* Performs a safe (local) redirect, using wp_redirect().
*
* Checks whether the $location is using an allowed host, if it has an absolute
* path. A plugin can therefore set or remove allowed host(s) to or from the
* list.
*
* If the host is not allowed, then the redirect defaults to wp-admin on the siteurl
* instead. This prevents malicious redirects which redirect to another host,
* but only used in a few places.
*
* Note: wp_safe_redirect() does not exit automatically, and should almost always be
* followed by a call to `exit;`:
*
* wp_safe_redirect( $url );
* exit;
*
* Exiting can also be selectively manipulated by using wp_safe_redirect() as a conditional
* in conjunction with the {@see 'wp_redirect'} and {@see 'wp_redirect_status'} filters:
*
* if ( wp_safe_redirect( $url ) ) {
* exit;
* }
*
* @since 2.3.0
* @since 5.1.0 The return value from wp_redirect() is now passed on, and the `$x_redirect_by` parameter was added.
*
* @param string $location The path or URL to redirect to.
* @param int $status Optional. HTTP response status code to use. Default '302' (Moved Temporarily).
* @param string|false $x_redirect_by Optional. The application doing the redirect or false to omit. Default 'WordPress'.
* @return bool False if the redirect was canceled, true otherwise.
*/