<?php
/*
* This file is part of the JsonSchema package.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace JsonSchema\Constraints;
use JsonSchema\Entity\JsonPointer;
/**
* The ObjectConstraint Constraints, validates an object against a given schema
*
* @author Robert Schönthal <seroscho@googlemail.com>
* @author Bruno Prieto Reis <bruno.p.reis@gmail.com>
*/
class ObjectConstraint extends Constraint
{
/**
* @var array List of properties to which a default value has been applied
*/
protected $appliedDefaults = array();
/**
* {@inheritdoc}
*/
public function check(&$element, $schema = null, JsonPointer $path = null, $properties = null,
$additionalProp = null, $patternProperties = null, $appliedDefaults = array())
{
if ($element instanceof UndefinedConstraint) {
return;
}
$this->appliedDefaults = $appliedDefaults;
$matches = array();
if ($patternProperties) {
// validate the element pattern properties
$matches = $this->validatePatternProperties($element, $path, $patternProperties);
}
if ($properties) {
// validate the element properties
$this->validateProperties($element, $properties, $path);
}
// validate additional element properties & constraints
$this->validateElement($element, $matches, $schema, $path, $properties, $additionalProp);
}
public function validatePatternProperties($element, JsonPointer $path = null, $patternProperties)
{
$try = array('/', '#', '+', '~', '%');
$matches = array();
foreach ($patternProperties as $pregex => $schema) {
$delimiter = '/';
// Choose delimiter. Necessary for patterns like ^/ , otherwise you get error
foreach ($try as $delimiter) {
if (strpos($pregex, $delimiter) === false) { // safe to use
break;
}
}
// Validate the pattern before using it to test for matches
if (@preg_match($delimiter . $pregex . $delimiter . 'u', '') === false) {
$this->addError($path, 'The pattern "' . $pregex . '" is invalid', 'pregex', array('pregex' => $pregex));
continue;
}
foreach ($element as $i => $value) {
if (preg_match($delimiter . $pregex . $delimiter . 'u', $i)) {
$matches[] = $i;
$this->checkUndefined($value, $schema ?: new \stdClass(), $path, $i, in_array($i, $this->appliedDefaults));
}
}
}
return $matches;
}
/**
* Validates the element properties
*
* @param \StdClass $element Element to validate
* @param array $matches Matches from patternProperties (if any)
* @param \StdClass $schema ObjectConstraint definition
* @param JsonPointer|null $path Current test path
* @param \StdClass $properties Properties
* @param mixed $additionalProp Additional properties
*/
public function validateElement($element, $matches, $schema = null, JsonPointer $path = null,
$properties = null, $additionalProp = null)
{
$this->validateMinMaxConstraint($element, $schema, $path);
foreach ($element as $i => $value) {
$definition = $this->getProperty($properties, $i);
// no additional properties allowed
if (!in_array($i, $matches) && $additionalProp === false && $this->inlineSchemaProperty !== $i && !$definition) {
$this->addError($path, 'The property ' . $i . ' is not defined and the definition does not allow additional properties', 'additionalProp');
}
// additional properties defined
if (!in_array($i, $matches) && $additionalProp && !$definition) {
if ($additionalProp === true) {
$this->checkUndefined($value, null, $path, $i, in_array($i, $this->appliedDefaults));
} else {
$this->checkUndefined($value, $additionalProp, $path, $i, in_array($i, $this->appliedDefaults));
}
}
// property requires presence of another
$require = $this->getProperty($definition, 'requires');
if ($require && !$this->getProperty($element, $require)) {
$this->addError($path, 'The presence of the property ' . $i . ' requires that ' . $require . ' also be present', 'requires');
}
$property = $this->getProperty($element, $i, $this->factory->createInstanceFor('undefined'));
if (is_object($property)) {
$this->validateMinMaxConstraint(!($property instanceof UndefinedConstraint) ? $property : $element, $definition, $path);
}
}
}
/**
* Validates the definition properties
*
* @param \stdClass $element Element to validate
* @param \stdClass $properties Property definitions
* @param JsonPointer|null $path Path?
*/
public function validateProperties(&$element, $properties = null, JsonPointer $path = null)
{
$undefinedConstraint = $this->factory->createInstanceFor('undefined');
foreach ($properties as $i => $value) {
$property = &$this->getProperty($element, $i, $undefinedConstraint);
$definition = $this->getProperty($properties, $i);
if (is_object($definition)) {
// Undefined constraint will check for is_object() and quit if is not - so why pass it?
$this->checkUndefined($property, $definition, $path, $i, in_array($i, $this->appliedDefaults));
}
}
}
/**
* retrieves a property from an object or array
*
* @param mixed $element Element to validate
* @param string $property Property to retrieve
* @param mixed $fallback Default value if property is not found
*
* @return mixed
*/
protected function &getProperty(&$element, $property, $fallback = null)
{
if (is_array($element) && (isset($element[$property]) || array_key_exists($property, $element)) /*$this->checkMode == self::CHECK_MODE_TYPE_CAST*/) {
return $element[$property];
} elseif (is_object($element) && property_exists($element, $property)) {
return $element->$property;
}
return $fallback;
}
/**
* validating minimum and maximum property constraints (if present) against an element
*
* @param \stdClass $element Element to validate
* @param \stdClass $objectDefinition ObjectConstraint definition
* @param JsonPointer|null $path Path to test?
*/
protected function validateMinMaxConstraint($element, $objectDefinition, JsonPointer $path = null)
{
// Verify minimum number of properties
if (isset($objectDefinition->minProperties) && !is_object($objectDefinition->minProperties)) {
if ($this->getTypeCheck()->propertyCount($element) < $objectDefinition->minProperties) {
$this->addError($path, 'Must contain a minimum of ' . $objectDefinition->minProperties . ' properties', 'minProperties', array('minProperties' => $objectDefinition->minProperties));
}
}
// Verify maximum number of properties
if (isset($objectDefinition->maxProperties) && !is_object($objectDefinition->maxProperties)) {
if ($this->getTypeCheck()->propertyCount($element) > $objectDefinition->maxProperties) {
$this->addError($path, 'Must contain no more than ' . $objectDefinition->maxProperties . ' properties', 'maxProperties', array('maxProperties' => $objectDefinition->maxProperties));
}
}
}
}