public function validate_callback( $address, $request, $param ) {
$errors = new \WP_Error();
$address = (array) $address;
$validation_util = new ValidationUtils();
$schema = $this->get_properties();
// The flow is Validate -> Sanitize -> Re-Validate
// First validation step is to ensure fields match their schema, then we sanitize to put them in the
// correct format, and finally the second validation step is to ensure the correctly-formatted values
// match what we expect (postcode etc.).
foreach ( $address as $key => $value ) {
if ( is_wp_error( rest_validate_value_from_schema( $value, $schema[ $key ], $key ) ) ) {
$errors->add(
'invalid_' . $key,
sprintf(
/* translators: %s: field name */
__( 'Invalid %s provided.', 'woocommerce' ),
$key
)
);
}
}
// This condition will be true if any validation errors were encountered, e.g. wrong type supplied or invalid
// option in enum fields.
if ( $errors->has_errors() ) {
return $errors;
}
$address = $this->sanitize_callback( $address, $request, $param );
if ( ! empty( $address['country'] ) && ! in_array( $address['country'], array_keys( wc()->countries->get_countries() ), true ) ) {
$errors->add(
'invalid_country',
sprintf(
/* translators: %s valid country codes */
__( 'Invalid country code provided. Must be one of: %s', 'woocommerce' ),
implode( ', ', array_keys( wc()->countries->get_countries() ) )
)
);
return $errors;
}
if ( ! empty( $address['state'] ) && ! $validation_util->validate_state( $address['state'], $address['country'] ) ) {
$errors->add(
'invalid_state',
sprintf(
/* translators: %1$s given state, %2$s valid states */
__( 'The provided state (%1$s) is not valid. Must be one of: %2$s', 'woocommerce' ),
esc_html( $address['state'] ),
implode( ', ', array_keys( $validation_util->get_states_for_country( $address['country'] ) ) )
)
);
}
if ( ! empty( $address['postcode'] ) && ! \WC_Validation::is_postcode( $address['postcode'], $address['country'] ) ) {
$errors->add(
'invalid_postcode',
__( 'The provided postcode / ZIP is not valid', 'woocommerce' )
);
}
if ( ! empty( $address['phone'] ) && ! \WC_Validation::is_phone( $address['phone'] ) ) {
$errors->add(
'invalid_phone',
__( 'The provided phone number is not valid', 'woocommerce' )
);
}
// Get additional field keys here as we need to know if they are present in the address for validation.
$additional_keys = array_keys( $this->get_additional_address_fields_schema() );
foreach ( array_keys( $address ) as $key ) {
// Skip email here it will be validated in BillingAddressSchema.
if ( 'email' === $key ) {
continue;
}
$properties = $this->get_properties();
// Only run specific validation on properties that are defined in the schema and present in the address.
// This is for partial address pushes when only part of a customer address is sent.
// Full schema address validation still happens later, so empty, required values are disallowed.
if ( empty( $properties[ $key ] ) || empty( $address[ $key ] ) ) {
continue;
}
$result = rest_validate_value_from_schema( $address[ $key ], $properties[ $key ], $key );
// Check if a field is in the list of additional fields then validate the value against the custom validation rules defined for it.
// Skip additional validation if the schema validation failed.
if ( true === $result && in_array( $key, $additional_keys, true ) ) {
$result = $this->additional_fields_controller->validate_field( $key, $address[ $key ] );
}
if ( is_wp_error( $result ) && $result->has_errors() ) {
$errors->merge_from( $result );
}
}
$result = $this->additional_fields_controller->validate_fields_for_location( $address, 'address', 'billing_address' === $this->title ? 'billing' : 'shipping' );
if ( is_wp_error( $result ) && $result->has_errors() ) {
$errors->merge_from( $result );
}
return $errors->has_errors( $errors ) ? $errors : true;
}
