eturn bool True if the pattern matches the given value, false otherwise.
*/
function rest_validate_json_schema_pattern( $pattern, $value ) {
$escaped_pattern = str_replace( '#', '\\#', $pattern );
return 1 === preg_match( '#' . $escaped_pattern . '#u', $value );
}
/**
* Finds the schema for a property using the patternProperties keyword.
*
* @since 5.6.0
*
* @param string $property The property name to check.
* @param array $args The schema array to use.
* @return array|null The schema of matching pattern property, or null if no patterns match.
*/
function rest_find_matching_pattern_property_schema( $property, $args ) {
if ( isset( $args['patternProperties'] ) ) {
foreach ( $args['patternProperties'] as $pattern => $child_schema ) {
if ( rest_validate_json_schema_pattern( $pattern, $property ) ) {
return $child_schema;
}
}
}
return null;
}
/**
* Formats a combining operation error into a WP_Error object.
*
* @since 5.6.0
*
* @param string $param The parameter name.
* @param array $error The error details.
* @return WP_Error
*/
function rest_format_combining_operation_error( $param, $error ) {
$position = $error['index'];
$reason = $error['error_object']->get_error_message();
if ( isset( $error['schema']['title'] ) ) {
$title = $error['schema']['title'];
return new WP_Error(
'rest_no_matching_schema',
/* translators: 1: Parameter, 2: Schema title, 3: Reason. */
sprintf( __( '%1$s is not a valid %2$s. Reason: %3$s' ), $param, $title, $reason ),
array( 'position' => $position )
);
}
return new WP_Error(
'rest_no_matching_schema',
/* translators: 1: Parameter, 2: Reason. */
sprintf( __( '%1$s does not match the expected format. Reason: %2$s' ), $param, $reason ),
array( 'position' => $position )
);
}
/**
* Gets the error of combining operation.
*
* @since 5.6.0
*
* @param array $value The value to validate.
* @param string $param The parameter name, used in error messages.
* @param array $errors The errors array, to search for possible error.
* @return WP_Error The combining operation error.
*/
function rest_get_combining_operation_error( $value, $param, $errors ) {
// If there is only one error, simply return it.
if ( 1 === count( $errors ) ) {
return rest_format_combining_operation_error( $param, $errors[0] );
}
// Filter out all errors related to type validation.
$filtered_errors = array();
foreach ( $errors as $error ) {
$error_code = $error['error_object']->get_error_code();
$error_data = $error['error_object']->get_error_data();
if ( 'rest_invalid_type' !== $error_code || ( isset( $error_data['param'] ) && $param !== $error_data['param'] ) ) {
$filtered_errors[] = $error;
}
}
// If there is only one error left, simply return it.
if ( 1 === count( $filtered_errors ) ) {
return rest_format_combining_operation_error( $param, $filtered_errors[0] );
}
// If there are only errors related to object validation, try choosing the most appropriate one.
if ( count( $filtered_errors ) > 1 && 'object' === $filtered_errors[0]['schema']['type'] ) {
$result = null;
$number = 0;
foreach ( $filtered_errors as $error ) {
if ( isset( $error['schema']['properties'] ) ) {
$n = count( array_intersect_key( $error['schema']['properties'], $value ) );
if ( $n > $number ) {
$result = $error;
$number = $n;
}
}
}
if ( null !== $result ) {
return rest_format_combining_operation_error( $param, $result );
}
}
// If each schema has a title, include those titles in the error message.
$schema_titles = array();
foreach ( $errors as $error ) {
if ( isset( $error['schema']['title'] ) ) {
$schema_titles[] = $error['schema']['title'];
}
}
if ( count( $schema_titles ) === count( $errors ) ) {
/* translators: 1: Parameter, 2: Schema titles. */
return new WP_Error( 'rest_no_matching_schema', wp_sprintf( __( '%1$s is not a valid %2$l.' ), $param, $schema_titles ) );
}
/* translators: %s: Parameter. */
return new WP_Error( 'rest_no_matching_schema', sprintf( __( '%s does not match any of the expected formats.' ), $param ) );
}
/**
* Finds the matching schema among the "anyOf" schemas.
*
* @since 5.6.0
*
* @param mixed $value The value to validate.
* @param array $args The schema array to use.
* @param string $param The parameter name, used in error messages.
* @return array|WP_Error The matching schema or WP_Error instance if all schemas do not match.
*/
function rest_find_any_matching_schema( $value, $args, $param ) {
$errors = array();
foreach ( $args['anyOf'] as $index => $schema ) {
if ( ! isset( $schema['type'] ) && isset( $args['type'] ) ) {
$schema['type'] = $args['type'];
}
$is_valid = rest_validate_value_from_schema( $value, $schema, $param );
if ( ! is_wp_error( $is_valid ) ) {
return $schema;
}
$errors[] = array(
'error_object' => $is_valid,
'schema' => $schema,
'index' => $index,
);
}
return rest_get_combining_operation_error( $value, $param, $errors );
}
/**
* Finds the matching schema among the "oneOf" schemas.
*
* @since 5.6.0
*
* @param mixed $value The value to validate.
* @param array $args The schema array to use.
* @param string $param The parameter name, used in error messages.
* @param bool $stop_after_first_match Optional. Whether the process should stop after the first successful match.
* @return array|WP_Error The matching schema or WP_Error instance if the number of matching schemas is not equal to one.
*/
function rest_find_one_matching_schema( $value, $args, $param, $stop_after_first_match = false ) {
$matching_schemas = array();
$errors = array();
foreach ( $args['oneOf'] as $index => $schema ) {
if ( ! isset( $schema['type'] ) && isset( $args['type'] ) ) {
$schema['type'] = $args['type'];
}
$is_valid = rest_validate_value_from_schema( $value, $schema, $param );
if ( ! is_wp_error( $is_valid ) ) {
if ( $stop_after_first_match ) {
return $schema;
}
$matching_schemas[] = array(
'schema_object' => $schema,
'index' => $index,
);
} else {
$errors[] = array(
'error_object' => $is_valid,
'schema' => $schema,
'index' => $index,
);
}
}
if ( ! $matching_schemas ) {
return rest_get_combining_operation_error( $value, $param, $errors );
}
if ( count( $matching_schemas ) > 1 ) {
$schema_positions = array();
$schema_titles = array();
foreach ( $matching_schemas as $schema ) {
$schema_positions[] = $schema['index'];
if ( isset( $schema['schema_object']['title'] ) ) {
$schema_titles[] = $schema['schema_object']['title'];
}
}
// If each schema has a title, include those titles in the error message.
if ( count( $schema_titles ) === count( $matching_schemas ) ) {
return new WP_Error(
'rest_one_of_multiple_matches',
/* translators: 1: Parameter, 2: Schema titles. */
wp_sprintf( __( '%1$s matches %2$l, but should match only one.' ), $param, $schema_titles ),
array( 'positions' => $schema_positions )
);
}
return new WP_Error(
'rest_one_of_multiple_matches',
/* translators: %s: Parameter. */
sprintf( __( '%s matches more than one of the expected formats.' ), $param ),
array( 'positions' => $schema_positions )
);
}
return $matching_schemas[0]['schema_object'];
}
/**
* Checks the equality of two values, following JSON Schema semantics.
*
* Property order is ignored for objects.
*
* Values must have been previously sanitized/coerced to their native types.
*
* @since 5.7.0
*
* @param mixed $value1 The first value to check.
* @param mixed $value2 The second value to check.
* @return bool True if the values are equal or false otherwise.
*/
function rest_are_values_equal( $value1, $value2 ) {
if ( is_array( $value1 ) && is_array( $value2 ) ) {
if ( count( $value1 ) !== count( $value2 ) ) {
return false;
}
foreach ( $value1 as $index => $value ) {
if ( ! array_key_exists( $index, $value2 ) || ! rest_are_values_equal( $value, $value2[ $index ] ) ) {
return false;
}
}
return true;
}
if ( is_int( $value1 ) && is_float( $value2 )
|| is_float( $value1 ) && is_int( $value2 )
) {
return (float) $value1 === (float) $value2;
}
return $value1 === $value2;
}
/**
* Validates that the given value is a member of the JSON Schema "enum".
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args The schema array to use.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error True if the "enum" contains the value or a WP_Error instance otherwise.
*/
function rest_validate_enum( $value, $args, $param ) {
$sanitized_value = rest_sanitize_value_from_schema( $value, $args, $param );
if ( is_wp_error( $sanitized_value ) ) {
return $sanitized_value;
}
foreach ( $args['enum'] as $enum_value ) {
if ( rest_are_values_equal( $sanitized_value, $enum_value ) ) {
return true;
}
}
$encoded_enum_values = array();
foreach ( $args['enum'] as $enum_value ) {
$encoded_enum_values[] = is_scalar( $enum_value ) ? $enum_value : wp_json_encode( $enum_value );
}
if ( count( $encoded_enum_values ) === 1 ) {
/* translators: 1: Parameter, 2: Valid values. */
return new WP_Error( 'rest_not_in_enum', wp_sprintf( __( '%1$s is not %2$s.' ), $param, $encoded_enum_values[0] ) );
}
/* translators: 1: Parameter, 2: List of valid values. */
return new WP_Error( 'rest_not_in_enum', wp_sprintf( __( '%1$s is not one of %2$l.' ), $param, $encoded_enum_values ) );
}
/**
* Get all valid JSON schema properties.
*
* @since 5.6.0
*
* @return string[] All valid JSON schema properties.
*/
function rest_get_allowed_schema_keywords() {
return array(
'title',
'description',
'default',
'type',
'format',
'enum',
'items',
'properties',
'additionalProperties',
'patternProperties',
'minProperties',
'maxProperties',
'minimum',
'maximum',
'exclusiveMinimum',
'exclusiveMaximum',
'multipleOf',
'minLength',
'maxLength',
'pattern',
'minItems',
'maxItems',
'uniqueItems',
'anyOf',
'oneOf',
);
}
/**
* Validate a value based on a schema.
*
* @since 4.7.0
* @since 4.9.0 Support the "object" type.
* @since 5.2.0 Support validating "additionalProperties" against a schema.
* @since 5.3.0 Support multiple types.
* @since 5.4.0 Convert an empty string to an empty object.
* @since 5.5.0 Add the "uuid" and "hex-color" formats.
* Support the "minLength", "maxLength" and "pattern" keywords for strings.
* Support the "minItems", "maxItems" and "uniqueItems" keywords for arrays.
* Validate required properties.
* @since 5.6.0 Support the "minProperties" and "maxProperties" keywords for objects.
* Support the "multipleOf" keyword for numbers and integers.
* Support the "patternProperties" keyword for objects.
* Support the "anyOf" and "oneOf" keywords.
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_value_from_schema( $value, $args, $param = '' ) {
if ( isset( $args['anyOf'] ) ) {
$matching_schema = rest_find_any_matching_schema( $value, $args, $param );
if ( is_wp_error( $matching_schema ) ) {
return $matching_schema;
}
if ( ! isset( $args['type'] ) && isset( $matching_schema['type'] ) ) {
$args['type'] = $matching_schema['type'];
}
}
if ( isset( $args['oneOf'] ) ) {
$matching_schema = rest_find_one_matching_schema( $value, $args, $param );
if ( is_wp_error( $matching_schema ) ) {
return $matching_schema;
}
if ( ! isset( $args['type'] ) && isset( $matching_schema['type'] ) ) {
$args['type'] = $matching_schema['type'];
}
}
$allowed_types = array( 'array', 'object', 'string', 'number', 'integer', 'boolean', 'null' );
if ( ! isset( $args['type'] ) ) {
/* translators: %s: Parameter. */
_doing_it_wrong( __FUNCTION__, sprintf( __( 'The "type" schema keyword for %s is required.' ), $param ), '5.5.0' );
}
if ( is_array( $args['type'] ) ) {
$best_type = rest_handle_multi_type_schema( $value, $args, $param );
if ( ! $best_type ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: List of types. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, implode( ',', $args['type'] ) ),
array( 'param' => $param )
);
}
$args['type'] = $best_type;
}
if ( ! in_array( $args['type'], $allowed_types, true ) ) {
_doing_it_wrong(
__FUNCTION__,
/* translators: 1: Parameter, 2: The list of allowed types. */
wp_sprintf( __( 'The "type" schema keyword for %1$s can only be one of the built-in types: %2$l.' ), $param, $allowed_types ),
'5.5.0'
);
}
switch ( $args['type'] ) {
case 'null':
$is_valid = rest_validate_null_value_from_schema( $value, $param );
break;
case 'boolean':
$is_valid = rest_validate_boolean_value_from_schema( $value, $param );
break;
case 'object':
$is_valid = rest_validate_object_value_from_schema( $value, $args, $param );
break;
case 'array':
$is_valid = rest_validate_array_value_from_schema( $value, $args, $param );
break;
case 'number':
$is_valid = rest_validate_number_value_from_schema( $value, $args, $param );
break;
case 'string':
$is_valid = rest_validate_string_value_from_schema( $value, $args, $param );
break;
case 'integer':
$is_valid = rest_validate_integer_value_from_schema( $value, $args, $param );
break;
default:
$is_valid = true;
break;
}
if ( is_wp_error( $is_valid ) ) {
return $is_valid;
}
if ( ! empty( $args['enum'] ) ) {
$enum_contains_value = rest_validate_enum( $value, $args, $param );
if ( is_wp_error( $enum_contains_value ) ) {
return $enum_contains_value;
}
}
/*
* The "format" keyword should only be applied to strings. However, for backward compatibility,
* we allow the "format" keyword if the type keyword was not specified, or was set to an invalid value.
*/
if ( isset( $args['format'] )
&& ( ! isset( $args['type'] ) || 'string' === $args['type'] || ! in_array( $args['type'], $allowed_types, true ) )
) {
switch ( $args['format'] ) {
case 'hex-color':
if ( ! rest_parse_hex_color( $value ) ) {
return new WP_Error( 'rest_invalid_hex_color', __( 'Invalid hex color.' ) );
}
break;
case 'date-time':
if ( ! rest_parse_date( $value ) ) {
return new WP_Error( 'rest_invalid_date', __( 'Invalid date.' ) );
}
break;
case 'email':
if ( ! is_email( $value ) ) {
return new WP_Error( 'rest_invalid_email', __( 'Invalid email address.' ) );
}
break;
case 'ip':
if ( ! rest_is_ip_address( $value ) ) {
/* translators: %s: IP address. */
return new WP_Error( 'rest_invalid_ip', sprintf( __( '%s is not a valid IP address.' ), $param ) );
}
break;
case 'uuid':
if ( ! wp_is_uuid( $value ) ) {
/* translators: %s: The name of a JSON field expecting a valid UUID. */
return new WP_Error( 'rest_invalid_uuid', sprintf( __( '%s is not a valid UUID.' ), $param ) );
}
break;
}
}
return true;
}
/**
* Validates a null value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_null_value_from_schema( $value, $param ) {
if ( null !== $value ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'null' ),
array( 'param' => $param )
);
}
return true;
}
/**
* Validates a boolean value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_boolean_value_from_schema( $value, $param ) {
if ( ! rest_is_boolean( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'boolean' ),
array( 'param' => $param )
);
}
return true;
}
/**
* Validates an object value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_object_value_from_schema( $value, $args, $param ) {
if ( ! rest_is_object( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'object' ),
array( 'param' => $param )
);
}
$value = rest_sanitize_object( $value );
if ( isset( $args['required'] ) && is_array( $args['required'] ) ) { // schema version 4
foreach ( $args['required'] as $name ) {
if ( ! array_key_exists( $name, $value ) ) {
return new WP_Error(
'rest_property_required',
/* translators: 1: Property of an object, 2: Parameter. */
sprintf( __( '%1$s is a required property of %2$s.' ), $name, $param )
);
}
}
} elseif ( isset( $args['properties'] ) ) { // schema version 3
foreach ( $args['properties'] as $name => $property ) {
if ( isset( $property['required'] ) && true === $property['required'] && ! array_key_exists( $name, $value ) ) {
return new WP_Error(
'rest_property_required',
/* translators: 1: Property of an object, 2: Parameter. */
sprintf( __( '%1$s is a required property of %2$s.' ), $name, $param )
);
}
}
}
foreach ( $value as $property => $v ) {
if ( isset( $args['properties'][ $property ] ) ) {
$is_valid = rest_validate_value_from_schema( $v, $args['properties'][ $property ], $param . '[' . $property . ']' );
if ( is_wp_error( $is_valid ) ) {
return $is_valid;
}
continue;
}
$pattern_property_schema = rest_find_matching_pattern_property_schema( $property, $args );
if ( null !== $pattern_property_schema ) {
$is_valid = rest_validate_value_from_schema( $v, $pattern_property_schema, $param . '[' . $property . ']' );
if ( is_wp_error( $is_valid ) ) {
return $is_valid;
}
continue;
}
if ( isset( $args['additionalProperties'] ) ) {
if ( false === $args['additionalProperties'] ) {
return new WP_Error(
'rest_additional_properties_forbidden',
/* translators: %s: Property of an object. */
sprintf( __( '%1$s is not a valid property of Object.' ), $property )
);
}
if ( is_array( $args['additionalProperties'] ) ) {
$is_valid = rest_validate_value_from_schema( $v, $args['additionalProperties'], $param . '[' . $property . ']' );
if ( is_wp_error( $is_valid ) ) {
return $is_valid;
}
}
}
}
if ( isset( $args['minProperties'] ) && count( $value ) < $args['minProperties'] ) {
return new WP_Error(
'rest_too_few_properties',
sprintf(
/* translators: 1: Parameter, 2: Number. */
_n(
'%1$s must contain at least %2$s property.',
'%1$s must contain at least %2$s properties.',
$args['minProperties']
),
$param,
number_format_i18n( $args['minProperties'] )
)
);
}
if ( isset( $args['maxProperties'] ) && count( $value ) > $args['maxProperties'] ) {
return new WP_Error(
'rest_too_many_properties',
sprintf(
/* translators: 1: Parameter, 2: Number. */
_n(
'%1$s must contain at most %2$s property.',
'%1$s must contain at most %2$s properties.',
$args['maxProperties']
),
$param,
number_format_i18n( $args['maxProperties'] )
)
);
}
return true;
}
/**
* Validates an array value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_array_value_from_schema( $value, $args, $param ) {
if ( ! rest_is_array( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'array' ),
array( 'param' => $param )
);
}
$value = rest_sanitize_array( $value );
if ( isset( $args['items'] ) ) {
foreach ( $value as $index => $v ) {
$is_valid = rest_validate_value_from_schema( $v, $args['items'], $param . '[' . $index . ']' );
if ( is_wp_error( $is_valid ) ) {
return $is_valid;
}
}
}
if ( isset( $args['minItems'] ) && count( $value ) < $args['minItems'] ) {
return new WP_Error(
'rest_too_few_items',
sprintf(
/* translators: 1: Parameter, 2: Number. */
_n(
'%1$s must contain at least %2$s item.',
'%1$s must contain at least %2$s items.',
$args['minItems']
),
$param,
number_format_i18n( $args['minItems'] )
)
);
}
if ( isset( $args['maxItems'] ) && count( $value ) > $args['maxItems'] ) {
return new WP_Error(
'rest_too_many_items',
sprintf(
/* translators: 1: Parameter, 2: Number. */
_n(
'%1$s must contain at most %2$s item.',
'%1$s must contain at most %2$s items.',
$args['maxItems']
),
$param,
number_format_i18n( $args['maxItems'] )
)
);
}
if ( ! empty( $args['uniqueItems'] ) && ! rest_validate_array_contains_unique_items( $value ) ) {
/* translators: %s: Parameter. */
return new WP_Error( 'rest_duplicate_items', sprintf( __( '%s has duplicate items.' ), $param ) );
}
return true;
}
/**
* Validates a number value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_number_value_from_schema( $value, $args, $param ) {
if ( ! is_numeric( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, $args['type'] ),
array( 'param' => $param )
);
}
if ( isset( $args['multipleOf'] ) && fmod( $value, $args['multipleOf'] ) !== 0.0 ) {
return new WP_Error(
'rest_invalid_multiple',
/* translators: 1: Parameter, 2: Multiplier. */
sprintf( __( '%1$s must be a multiple of %2$s.' ), $param, $args['multipleOf'] )
);
}
if ( isset( $args['minimum'] ) && ! isset( $args['maximum'] ) ) {
if ( ! empty( $args['exclusiveMinimum'] ) && $value <= $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
/* translators: 1: Parameter, 2: Minimum number. */
sprintf( __( '%1$s must be greater than %2$d' ), $param, $args['minimum'] )
);
}
if ( empty( $args['exclusiveMinimum'] ) && $value < $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
/* translators: 1: Parameter, 2: Minimum number. */
sprintf( __( '%1$s must be greater than or equal to %2$d' ), $param, $args['minimum'] )
);
}
}
if ( isset( $args['maximum'] ) && ! isset( $args['minimum'] ) ) {
if ( ! empty( $args['exclusiveMaximum'] ) && $value >= $args['maximum'] ) {
return new WP_Error(
'rest_out_of_bounds',
/* translators: 1: Parameter, 2: Maximum number. */
sprintf( __( '%1$s must be less than %2$d' ), $param, $args['maximum'] )
);
}
if ( empty( $args['exclusiveMaximum'] ) && $value > $args['maximum'] ) {
return new WP_Error(
'rest_out_of_bounds',
/* translators: 1: Parameter, 2: Maximum number. */
sprintf( __( '%1$s must be less than or equal to %2$d' ), $param, $args['maximum'] )
);
}
}
if ( isset( $args['minimum'], $args['maximum'] ) ) {
if ( ! empty( $args['exclusiveMinimum'] ) && ! empty( $args['exclusiveMaximum'] ) ) {
if ( $value >= $args['maximum'] || $value <= $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
sprintf(
/* translators: 1: Parameter, 2: Minimum number, 3: Maximum number. */
__( '%1$s must be between %2$d (exclusive) and %3$d (exclusive)' ),
$param,
$args['minimum'],
$args['maximum']
)
);
}
}
if ( ! empty( $args['exclusiveMinimum'] ) && empty( $args['exclusiveMaximum'] ) ) {
if ( $value > $args['maximum'] || $value <= $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
sprintf(
/* translators: 1: Parameter, 2: Minimum number, 3: Maximum number. */
__( '%1$s must be between %2$d (exclusive) and %3$d (inclusive)' ),
$param,
$args['minimum'],
$args['maximum']
)
);
}
}
if ( ! empty( $args['exclusiveMaximum'] ) && empty( $args['exclusiveMinimum'] ) ) {
if ( $value >= $args['maximum'] || $value < $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
sprintf(
/* translators: 1: Parameter, 2: Minimum number, 3: Maximum number. */
__( '%1$s must be between %2$d (inclusive) and %3$d (exclusive)' ),
$param,
$args['minimum'],
$args['maximum']
)
);
}
}
if ( empty( $args['exclusiveMinimum'] ) && empty( $args['exclusiveMaximum'] ) ) {
if ( $value > $args['maximum'] || $value < $args['minimum'] ) {
return new WP_Error(
'rest_out_of_bounds',
sprintf(
/* translators: 1: Parameter, 2: Minimum number, 3: Maximum number. */
__( '%1$s must be between %2$d (inclusive) and %3$d (inclusive)' ),
$param,
$args['minimum'],
$args['maximum']
)
);
}
}
}
return true;
}
/**
* Validates a string value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_string_value_from_schema( $value, $args, $param ) {
if ( ! is_string( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'string' ),
array( 'param' => $param )
);
}
if ( isset( $args['minLength'] ) && mb_strlen( $value ) < $args['minLength'] ) {
return new WP_Error(
'rest_too_short',
sprintf(
/* translators: 1: Parameter, 2: Number of characters. */
_n(
'%1$s must be at least %2$s character long.',
'%1$s must be at least %2$s characters long.',
$args['minLength']
),
$param,
number_format_i18n( $args['minLength'] )
)
);
}
if ( isset( $args['maxLength'] ) && mb_strlen( $value ) > $args['maxLength'] ) {
return new WP_Error(
'rest_too_long',
sprintf(
/* translators: 1: Parameter, 2: Number of characters. */
_n(
'%1$s must be at most %2$s character long.',
'%1$s must be at most %2$s characters long.',
$args['maxLength']
),
$param,
number_format_i18n( $args['maxLength'] )
)
);
}
if ( isset( $args['pattern'] ) && ! rest_validate_json_schema_pattern( $args['pattern'], $value ) ) {
return new WP_Error(
'rest_invalid_pattern',
/* translators: 1: Parameter, 2: Pattern. */
sprintf( __( '%1$s does not match pattern %2$s.' ), $param, $args['pattern'] )
);
}
return true;
}
/**
* Validates an integer value based on a schema.
*
* @since 5.7.0
*
* @param mixed $value The value to validate.
* @param array $args Schema array to use for validation.
* @param string $param The parameter name, used in error messages.
* @return true|WP_Error
*/
function rest_validate_integer_value_from_schema( $value, $args, $param ) {
$is_valid_number = rest_validate_number_value_from_schema( $value, $args, $param );
if ( is_wp_error( $is_valid_number ) ) {
return $is_valid_number;
}
if ( ! rest_is_integer( $value ) ) {
return new WP_Error(
'rest_invalid_type',
/* translators: 1: Parameter, 2: Type name. */
sprintf( __( '%1$s is not of type %2$s.' ), $param, 'integer' ),
array( 'param' => $param )
);
}
return true;
}
/**
* Sanitize a value based on a schema.
*
* @since 4.7.0
* @since 5.5.0 Added the `$param` parameter.
* @since 5.6.0 Support the "anyOf" and "oneOf" keywords.
* @since 5.9.0 Added `text-field` and `textarea-field` formats.
*
* @param mixed $value The value to sanitize.
* @param array $args Schema array to use for sanitization.
* @param string $param The parameter name, used in error messages.
* @return mixed|WP_Error The sanitized value or a WP_Error instance if the value cannot be safely sanitized.
*/
function rest_sanitize_value_from_schema( $value, $args, $param = '' ) {
if ( isset( $args['anyOf'] ) ) {
$matching_schema = rest_find_any_matching_schema( $value, $args, $param );
if ( is_wp_error( $matching_schema ) ) {
return $matching_schema;
}
if ( ! isset( $args['type'] ) ) {
$args['type'] = $matching_schema['type'];
}
$value = rest_sanitize_value_from_schema( $value, $matching_schema, $param );
}
if ( isset( $args['oneOf'] ) ) {
$matching_schema = rest_find_one_matching_schema( $value, $args, $param );
if ( is_wp_error( $matching_schema ) ) {
return $matching_schema;
}
if ( ! isset( $args['type'] ) ) {
$args['type'] = $matching_schema['type'];
}
$value = rest_sanitize_value_from_schema( $value, $matching_schema, $param );
}
$allowed_types = array( 'array', 'object', 'string', 'number', 'integer', 'boolean', 'null' );
if ( ! isset( $args['type'] ) ) {
/* translators: %s: Parameter. */
_doing_it_wrong( __FUNCTION__, sprintf( __( 'The "type" schema keyword for %s is required.' ), $param ), '5.5.0' );
}
if ( is_array( $args['type'] ) ) {
$best_type = rest_handle_multi_type_schema( $value, $args, $param );
if ( ! $best_type ) {
return null;
}
$args['type'] = $best_type;
}
if ( ! in_array( $args['type'], $allowed_types, true ) ) {
_doing_it_wrong(
__FUNCTION__,
/* translators: 1: Parameter, 2: The list of allowed types. */
wp_sprintf( __( 'The "type" schema keyword for %1$s can only be one of the built-in types: %2$l.' ), $param, $allowed_types ),
'5.5.0'
);
}
if ( 'array' === $args['type'] ) {
$value = rest_sanitize_array( $value );
if ( ! empty( $args['items'] ) ) {
foreach ( $value as $index => $v ) {
$value[ $index ] = rest_sanitize_value_from_schema( $v, $args['items'], $param . '[' . $index . ']' );
}
}
if ( ! empty( $args['uniqueItems'] ) && ! rest_validate_array_contains_unique_items( $value ) ) {
/* translators: %s: Parameter. */
return new WP_Error( 'rest_duplicate_items', sprintf( __( '%s has duplicate items.' ), $param ) );
}
return $value;
}
if ( 'object' === $args['type'] ) {
$value = rest_sanitize_object( $value );
foreach ( $value as $property => $v ) {
if ( isset( $args['properties'][ $property ] ) ) {
$value[ $property ] = rest_sanitize_value_from_schema( $v, $args['properties'][ $property ], $param . '[' . $property . ']' );
continue;
}
$pattern_property_schema = rest_find_matching_pattern_property_schema( $property, $args );
if ( null !== $pattern_property_schema ) {
$value[ $property ] = rest_sanitize_value_from_schema( $v, $pattern_property_schema, $param . '[' . $property . ']' );
continue;
}
if ( isset( $args['additionalProperties'] ) ) {
if ( false === $args['additionalProperties'] ) {
unset( $value[ $property ] );
} elseif ( is_array( $args['additionalProperties'] ) ) {
$value[ $property ] = rest_sanitize_value_from_schema( $v, $args['additionalProperties'], $param . '[' . $property . ']' );
}
}
}
return $value;
}
if ( 'null' === $args['type'] ) {
return null;
}
if ( 'integer' === $args['type'] ) {
return (int) $value;
}
if ( 'number' === $args['type'] ) {
return (float) $value;
}
if ( 'boolean' === $args['type'] ) {
return rest_sanitize_boolean( $value );
}
// This behavior matches rest_validate_value_from_schema().
if ( isset( $args['format'] )
&& ( ! isset( $args['type'] ) || 'string' === $args['type'] || ! in_array( $args['type'], $allowed_types, true ) )
) {
switch ( $args['format'] ) {
case 'hex-color':
return (string) sanitize_hex_color( $value );
case 'date-time':
return sanitize_text_field( $value );
case 'email':
// sanitize_email() validates, which would be unexpected.
return sanitize_text_field( $value );
case 'uri':
return sanitize_url( $value );
case 'ip':
return sanitize_text_field( $value );
case 'uuid':
return sanitize_text_field( $value );
case 'text-field':
return sanitize_text_field( $value );
case 'textarea-field':
return sanitize_textarea_field( $value );
}
}
if ( 'string' === $args['type'] ) {
return (string) $value;
}
return $value;
}
/**
* Append result of internal request to REST API for purpose of preloading data to be attached to a page.
* Expected to be called in the context of `array_reduce`.
*
* @since 5.0.0
*
* @param array $memo Reduce accumulator.
* @param string $path REST API path to preload.
* @return array Modified reduce accumulator.
*/
function rest_preload_api_request( $memo, $path ) {
/*
* array_reduce() doesn't support passing an array in PHP 5.2,
* so we need to make sure we start with one.
*/
if ( ! is_array( $memo ) ) {
$memo = array();
}
if ( empty( $path ) ) {
return $memo;
}
$method = 'GET';
if ( is_array( $path ) && 2 === count( $path ) ) {
$method = end( $path );
$path = reset( $path );
if ( ! in_array( $method, array( 'GET', 'OPTIONS' ), true ) ) {
$method = 'GET';
}
}
$path = untrailingslashit( $path );
if ( empty( $path ) ) {
$path = '/';
}
$path_parts = parse_url( $path );
if ( false === $path_parts ) {
return $memo;
}
$request = new WP_REST_Request( $method, $path_parts['path'] );
if ( ! empty( $path_parts['query'] ) ) {
parse_str( $path_parts['query'], $query_params );
$request->set_query_params( $query_params );
}
$response = rest_do_request( $request );
if ( 200 === $response->status ) {
$server = rest_get_server();
/** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */
$response = apply_filters( 'rest_post_dispatch', rest_ensure_response( $response ), $server, $request );
$embed = $request->has_param( '_embed' ) ? rest_parse_embed_param( $request['_embed'] ) : false;
$data = (array) $server->response_to_data( $response, $embed );
if ( 'OPTIONS' === $method ) {
$memo[ $method ][ $path ] = array(
'body' => $data,
'headers' => $response->headers,
);
} else {
$memo[ $path ] = array(
'body' => $data,
'headers' => $response->headers,
);
}
}
return $memo;
}
/**
* Parses the "_embed" parameter into the list of resources to embed.
*
* @since 5.4.0
*
* @param string|array $embed Raw "_embed" parameter value.
* @return true|string[] Either true to embed all embeds, or a list of relations to embed.
*/
function rest_parse_embed_param( $embed ) {
if ( ! $embed || 'true' === $embed || '1' === $embed ) {
return true;
}
$rels = wp_parse_list( $embed );
if ( ! $rels ) {
return true;
}
return $rels;
}
/**
* Filters the response to remove any fields not available in the given context.
*
* @since 5.5.0
* @since 5.6.0 Support the "patternProperties" keyword for objects.
* Support the "anyOf" and "oneOf" keywords.
*
* @param array|object $response_data The response data to modify.
* @param array $schema The schema for the endpoint used to filter the response.
* @param string $context The requested context.
* @return array|object The filtered response data.
*/
function rest_filter_response_by_context( $response_data, $schema, $context ) {
if ( isset( $schema['anyOf'] ) ) {
$matching_schema = rest_find_any_matching_schema( $response_data, $schema, '' );
if ( ! is_wp_error( $matching_schema ) ) {
if ( ! isset( $schema['type'] ) ) {
$schema['type'] = $matching_schema['type'];
}
$response_data = rest_filter_response_by_context( $response_data, $matching_schema, $context );
}
}
if ( isset( $schema['oneOf'] ) ) {
$matching_schema = rest_find_one_matching_schema( $response_data, $schema, '', true );
if ( ! is_wp_error( $matching_schema ) ) {
if ( ! isset( $schema['type'] ) ) {
$schema['type'] = $matching_schema['type'];
}
$response_data = rest_filter_response_by_context( $response_data, $matching_schema, $context );
}
}
if ( ! is_array( $response_data ) && ! is_object( $response_data ) ) {
return $response_data;
}
if ( isset( $schema['type'] ) ) {
$type = $schema['type'];
} elseif ( isset( $schema['properties'] ) ) {
$type = 'object'; // Back compat if a developer accidentally omitted the type.
} else {
return $response_data;
}
$is_array_type = 'array' === $type || ( is_array( $type ) && in_array( 'array', $type, true ) );
$is_object_type = 'object' === $type || ( is_array( $type ) && in_array( 'object', $type, true ) );
if ( $is_array_type && $is_object_type ) {
if ( rest_is_array( $response_data ) ) {
$is_object_type = false;
} else {
$is_array_type = false;
}
}
$has_additional_properties = $is_object_type && isset( $schema['additionalProperties'] ) && is_array( $schema['additionalProperties'] );
foreach ( $response_data as $key => $value ) {
$check = array();
if ( $is_array_type ) {
$check = isset( $schema['items'] ) ? $schema['items'] : array();
} elseif ( $is_object_type ) {
if ( isset( $schema['properties'][ $key ] ) ) {
$check = $schema['properties'][ $key ];
} else {
$pattern_property_schema = rest_find_matching_pattern_property_schema( $key, $schema );
if ( null !== $pattern_property_schema ) {
$check = $pattern_property_schema;
} elseif ( $has_additional_properties ) {
$check = $schema['additionalProperties'];
}
}
}
if ( ! isset( $check['context'] ) ) {
continue;
}
if ( ! in_array( $context, $check['context'], true ) ) {
if ( $is_array_type ) {
// All array items share schema, so there's no need to check each one.
$response_data = array();
break;
}
if ( is_object( $response_data ) ) {
unset( $response_data->$key );
} else {
unset( $response_data[ $key ] );
}
} elseif ( is_array( $value ) || is_object( $value ) ) {
$new_value = rest_filter_response_by_context( $value, $check, $context );
if ( is_object( $response_data ) ) {
$response_data->$key = $new_value;
} else {
$response_data[ $key ] = $new_value;
}
}
}
return $response_data;
}
/**
* Sets the "additionalProperties" to false by default for all object definitions in the schema.
*
* @since 5.5.0
* @since 5.6.0 Support the "patternProperties" keyword.
*
* @param array $schema The schema to modify.
* @return array The modified schema.
*/
function rest_default_additional_properties_to_false( $schema ) {
$type = (array) $schema['type'];
if ( in_array( 'object', $type, true ) ) {
if ( isset( $schema['properties'] ) ) {
foreach ( $schema['properties'] as $key => $child_schema ) {
$schema['properties'][ $key ] = rest_default_additional_properties_to_false( $child_schema );
}
}
if ( isset( $schema['patternProperties'] ) ) {
foreach ( $schema['patternProperties'] as $key => $child_schema ) {
$schema['patternProperties'][ $key ] = rest_default_additional_properties_to_false( $child_schema );
}
}
if ( ! isset( $schema['additionalProperties'] ) ) {
$schema['additionalProperties'] = false;
}
}
if ( in_array( 'array', $type, true ) ) {
if ( isset( $schema['items'] ) ) {
$schema['items'] = rest_default_additional_properties_to_false( $schema['items'] );
}
}
return $schema;
}
/**
* Gets the REST API route for a post.
*
* @since 5.5.0
*
* @param int|WP_Post $post Post ID or post object.
* @return string The route path with a leading slash for the given post,
* or an empty string if there is not a route.
*/
function rest_get_route_for_post( $post ) {
$post = get_post( $post );
if ( ! $post instanceof WP_Post ) {
return '';
}
$post_type_route = rest_get_route_for_post_type_items( $post->post_type );
if ( ! $post_type_route ) {
return '';
}
$route = sprintf( '%s/%d', $post_type_route, $post->ID );
/**
* Filters the REST API route for a post.
*
* @since 5.5.0
*
* @param string $route The route path.
* @param WP_Post $post The post object.
*/
return apply_filters( 'rest_route_for_post', $route, $post );
}
/**
* Gets the REST API route for a post type.
*
* @since 5.9.0
*
* @param string $post_type The name of a registered post type.
* @return string The route path with a leading slash for the given post type,
* or an empty string if there is not a route.
*/
function rest_get_route_for_post_type_items( $post_type ) {
$post_type = get_post_type_object( $post_type );
if ( ! $post_type ) {
return '';
}
if ( ! $post_type->show_in_rest ) {
return '';
}
$namespace = ! empty( $post_type->rest_namespace ) ? $post_type->rest_namespace : 'wp/v2';
$rest_base = ! empty( $post_type->rest_base ) ? $post_type->rest_base : $post_type->name;
$route = sprintf( '/%s/%s', $namespace, $rest_base );
/**
* Filters the REST API route for a post type.
*
* @since 5.9.0
*
* @param string $route The route path.
* @param WP_Post_Type $post_type The post type object.
*/
return apply_filters( 'rest_route_for_post_type_items', $route, $post_type );
}
/**
* Gets the REST API route for a term.
*
* @since 5.5.0
*
* @param int|WP_Term $term Term ID or term object.
* @return string The route path with a leading slash for the given term,
* or an empty string if there is not a route.
*/
function rest_get_route_for_term( $term ) {
$term = get_term( $term );
if ( ! $term instanceof WP_Term ) {
return '';
}
$taxonomy_route = rest_get_route_for_taxonomy_items( $term->taxonomy );
if ( ! $taxonomy_route ) {
return '';
}
$route = sprintf( '%s/%d', $taxonomy_route, $term->term_id );
/**
* Filters the REST API route for a term.
*
* @since 5.5.0
*
* @param string $route The route path.
* @param WP_Term $term The term object.
*/
return apply_filters( 'rest_route_for_term', $route, $term );
}
/**
* Gets the REST API route for a taxonomy.
*
* @since 5.9.0
*
* @param string $taxonomy Name of taxonomy.
* @return string The route path with a leading slash for the given taxonomy.
*/
function rest_get_route_for_taxonomy_items( $taxonomy ) {
$taxonomy = get_taxonomy( $taxonomy );
if ( ! $taxonomy ) {
return '';
}
if ( ! $taxonomy->show_in_rest ) {
return '';
}
$namespace = ! empty( $taxonomy->rest_namespace ) ? $taxonomy->rest_namespace : 'wp/v2';
$rest_base = ! empty( $taxonomy->rest_base ) ? $taxonomy->rest_base : $taxonomy->name;
$route = sprintf( '/%s/%s', $namespace, $rest_base );
/**
* Filters the REST API route for a taxonomy.
*
* @since 5.9.0
*
* @param string $route The route path.
* @param WP_Taxonomy $taxonomy The taxonomy object.
*/
return apply_filters( 'rest_route_for_taxonomy_items', $route, $taxonomy );
}
/**
* Gets the REST route for the currently queried object.
*
* @since 5.5.0
*
* @return string The REST route of the resource, or an empty string if no resource identified.
*/
function rest_get_queried_resource_route() {
if ( is_singular() ) {
$route = rest_get_route_for_post( get_queried_object() );
} elseif ( is_category() || is_tag() || is_tax() ) {
$route = rest_get_route_for_term( get_queried_object() );
} elseif ( is_author() ) {
$route = '/wp/v2/users/' . get_queried_object_id();
} else {
$route = '';
}
/**
* Filters the REST route for the currently queried object.
*
* @since 5.5.0
*
* @param string $link The route with a leading slash, or an empty string.
*/
return apply_filters( 'rest_queried_resource_route', $route );
}
/**
* Retrieves an array of endpoint arguments from the item schema and endpoint method.
*
* @since 5.6.0
*
* @param array $schema The full JSON schema for the endpoint.
* @param string $method Optional. HTTP method of the endpoint. The arguments for `CREATABLE` endpoints are
* checked for required values and may fall-back to a given default, this is not done
* on `EDITABLE` endpoints. Default WP_REST_Server::CREATABLE.
* @return array The endpoint arguments.
*/
function rest_get_endpoint_args_for_schema( $schema, $method = WP_REST_Server::CREATABLE ) {
$schema_properties = ! empty( $schema['properties'] ) ? $schema['properties'] : array();
$endpoint_args = array();
$valid_schema_properties = rest_get_allowed_schema_keywords();
$valid_schema_properties = array_diff( $valid_schema_properties, array( 'default', 'required' ) );
foreach ( $schema_properties as $field_id => $params ) {
// Arguments specified as `readonly` are not allowed to be set.
if ( ! empty( $params['readonly'] ) ) {
continue;
}
$endpoint_args[ $field_id ] = array(
'validate_callback' => 'rest_validate_request_arg',
'sanitize_callback' => 'rest_sanitize_request_arg',
);
if ( WP_REST_Server::CREATABLE === $method && isset( $params['default'] ) ) {
$endpoint_args[ $field_id ]['default'] = $params['default'];
}
if ( WP_REST_Server::CREATABLE === $method && ! empty( $params['required'] ) ) {
$endpoint_args[ $field_id ]['required'] = true;
}
foreach ( $valid_schema_properties as $schema_prop ) {
if ( isset( $params[ $schema_prop ] ) ) {
$endpoint_args[ $field_id ][ $schema_prop ] = $params[ $schema_prop ];
}
}
// Merge in any options provided by the schema property.
if ( isset( $params['arg_options'] ) ) {
// Only use required / default from arg_options on CREATABLE endpoints.
if ( WP_REST_Server::CREATABLE !== $method ) {
$params['arg_options'] = array_diff_key(
$params['arg_options'],
array(
'required' => '',
'default' => '',
)
);
}
$endpoint_args[ $field_id ] = array_merge( $endpoint_args[ $field_id ], $params['arg_options'] );
}
}
return $endpoint_args;
}
/**
* Converts an error to a response object.
*
* This iterates over all error codes and messages to change it into a flat
* array. This enables simpler client behavior, as it is represented as a
* list in JSON rather than an object/map.
*
* @since 5.7.0
*
* @param WP_Error $error WP_Error instance.
*
* @return WP_REST_Response List of associative arrays with code and message keys.
*/
function rest_convert_error_to_response( $error ) {
$status = array_reduce(
$error->get_all_error_data(),
static function ( $status, $error_data ) {
return is_array( $error_data ) && isset( $error_data['status'] ) ? $error_data['status'] : $status;
},
500
);
$errors = array();
foreach ( (array) $error->errors as $code => $messages ) {
$all_data = $error->get_all_error_data( $code );
$last_data = array_pop( $all_data );
foreach ( (array) $messages as $message ) {
$formatted = array(
'code' => $code,
'message' => $message,
'data' => $last_data,
);
if ( $all_data ) {
$formatted['additional_data'] = $all_data;
}
$errors[] = $formatted;
}
}
$data = $errors[0];
if ( count( $errors ) > 1 ) {
// Remove the primary error.
array_shift( $errors );
$data['additional_errors'] = $errors;
}
return new WP_REST_Response( $data, $status );
}
/**
* Checks whether a REST API endpoint request is currently being handled.
*
* This may be a standalone REST API request, or an internal request dispatched from within a regular page load.
*
* @since 6.5.0
*
* @global WP_REST_Server $wp_rest_server REST server instance.
*
* @return bool True if a REST endpoint request is currently being handled, false otherwise.
*/
function wp_is_rest_endpoint() {
/* @var WP_REST_Server $wp_rest_server */
global $wp_rest_server;
// Check whether this is a standalone REST request.
$is_rest_endpoint = wp_is_serving_rest_request();
if ( ! $is_rest_endpoint ) {
// Otherwise, check whether an internal REST request is currently being handled.
$is_rest_endpoint = isset( $wp_rest_server )
&& $wp_rest_server->is_dispatching();
}
/**
* Filters whether a REST endpoint request is currently being handled.
*
* This may be a standalone REST API request, or an internal request dispatched from within a regular page load.
*
* @since 6.5.0
*
* @param bool $is_request_endpoint Whether a REST endpoint request is currently being handled.
*/
return (bool) apply_filters( 'wp_is_rest_endpoint', $is_rest_endpoint );
}
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