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<?php
/**
* WPSEO plugin file.
*
* @package WPSEO\Admin
*/
/**
* Implements server-side user input validation.
*
* @since 12.0
*/
class Yoast_Input_Validation {
/**
* The error descriptions.
*
* @since 12.1
*
* @var array<string, string>
*/
private static $error_descriptions = [];
/**
* Check whether an option group is a Yoast SEO setting.
*
* The normal pattern is 'yoast' . $option_name . 'options'.
*
* @since 12.0
*
* @param string $group_name The option group name.
*
* @return bool Whether or not it's an Yoast SEO option group.
*/
public static function is_yoast_option_group_name( $group_name ) {
return ( strpos( $group_name, 'yoast' ) !== false );
}
/**
* Adds an error message to the document title when submitting a settings
* form and errors are returned.
*
* Uses the WordPress `admin_title` filter in the WPSEO_Option subclasses.
*
* @since 12.0
*
* @param string $admin_title The page title, with extra context added.
*
* @return string The modified or original admin title.
*/
public static function add_yoast_admin_document_title_errors( $admin_title ) {
$errors = get_settings_errors();
$error_count = 0;
foreach ( $errors as $error ) {
// For now, filter the admin title only in the Yoast SEO settings pages.
if ( self::is_yoast_option_group_name( $error['setting'] ) && $error['code'] !== 'settings_updated' ) {
++$error_count;
}
}
if ( $error_count > 0 ) {
return sprintf(
/* translators: %1$s: amount of errors, %2$s: the admin page title */
_n( 'The form contains %1$s error. %2$s', 'The form contains %1$s errors. %2$s', $error_count, 'wordpress-seo' ),
number_format_i18n( $error_count ),
$admin_title,
);
}
return $admin_title;
}
/**
* Checks whether a specific form input field was submitted with an invalid value.
*
* @since 12.1
*
* @param string $error_code Must be the same slug-name used for the field variable and for `add_settings_error()`.
*
* @return bool Whether or not the submitted input field contained an invalid value.
*/
public static function yoast_form_control_has_error( $error_code ) {
$errors = get_settings_errors();
foreach ( $errors as $error ) {
if ( $error['code'] === $error_code ) {
return true;
}
}
return false;
}
/**
* Sets the error descriptions.
*
* @since 12.1
* @deprecated 23.3
* @codeCoverageIgnore
*
* @param array<string, string> $descriptions An associative array of error descriptions.
* For each entry, the key must be the setting variable.
*
* @return void
*/
public static function set_error_descriptions( $descriptions = [] ) { // @phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable, Generic.CodeAnalysis.UnusedFunctionParameter.Found -- Needed for BC.
_deprecated_function( __METHOD__, 'Yoast SEO 23.3' );
}
/**
* Gets all the error descriptions.
*
* @since 12.1
* @deprecated 23.3
* @codeCoverageIgnore
*
* @return array<string, string> An associative array of error descriptions.
*/
public static function get_error_descriptions() {
_deprecated_function( __METHOD__, 'Yoast SEO 23.3' );
return [];
}
/**
* Gets a specific error description.
*
* @since 12.1
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string|null The error description.
*/
public static function get_error_description( $error_code ) {
if ( ! isset( self::$error_descriptions[ $error_code ] ) ) {
return null;
}
return self::$error_descriptions[ $error_code ];
}
/**
* Gets the aria-invalid HTML attribute based on the submitted invalid value.
*
* @since 12.1
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string The aria-invalid HTML attribute or empty string.
*/
public static function get_the_aria_invalid_attribute( $error_code ) {
if ( self::yoast_form_control_has_error( $error_code ) ) {
return ' aria-invalid="true"';
}
return '';
}
/**
* Gets the aria-describedby HTML attribute based on the submitted invalid value.
*
* @since 12.1
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string The aria-describedby HTML attribute or empty string.
*/
public static function get_the_aria_describedby_attribute( $error_code ) {
if ( self::yoast_form_control_has_error( $error_code ) && self::get_error_description( $error_code ) ) {
return ' aria-describedby="' . esc_attr( $error_code ) . '-error-description"';
}
return '';
}
/**
* Gets the error description wrapped in a HTML paragraph.
*
* @since 12.1
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string The error description HTML or empty string.
*/
public static function get_the_error_description( $error_code ) {
$error_description = self::get_error_description( $error_code );
if ( self::yoast_form_control_has_error( $error_code ) && $error_description ) {
return '<p id="' . esc_attr( $error_code ) . '-error-description" class="yoast-input-validation__error-description">' . $error_description . '</p>';
}
return '';
}
/**
* Adds the submitted invalid value to the WordPress `$wp_settings_errors` global.
*
* @since 12.1
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
* @param string $dirty_value The submitted invalid value.
*
* @return void
*/
public static function add_dirty_value_to_settings_errors( $error_code, $dirty_value ) {
global $wp_settings_errors;
if ( ! is_array( $wp_settings_errors ) ) {
return;
}
foreach ( $wp_settings_errors as $index => $error ) {
if ( $error['code'] === $error_code ) {
// phpcs:ignore WordPress.WP.GlobalVariablesOverride -- This is a deliberate action.
$wp_settings_errors[ $index ]['yoast_dirty_value'] = $dirty_value;
}
}
}
/**
* Gets an invalid submitted value.
*
* @since 12.1
* @deprecated 23.3
* @codeCoverageIgnore
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string The submitted invalid input field value.
*/
public static function get_dirty_value( $error_code ) { // @phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable, Generic.CodeAnalysis.UnusedFunctionParameter.Found -- Needed for BC.
_deprecated_function( __METHOD__, 'Yoast SEO 23.3' );
return '';
}
/**
* Gets a specific invalid value message.
*
* @since 12.1
* @deprecated 23.3
* @codeCoverageIgnore
*
* @param string $error_code Code of the error set via `add_settings_error()`, normally the variable name.
*
* @return string The error invalid value message or empty string.
*/
public static function get_dirty_value_message( $error_code ) { // @phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable, Generic.CodeAnalysis.UnusedFunctionParameter.Found -- Needed for BC.
_deprecated_function( __METHOD__, 'Yoast SEO 23.3' );
return '';
}
}