mirror of
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294 lines
9.4 KiB
PHP
294 lines
9.4 KiB
PHP
<?php
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/**
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* @link http://www.yiiframework.com/
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* @copyright Copyright (c) 2008 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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namespace yii\rbac;
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use yii\base\Component;
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use yii\base\InvalidArgumentException;
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use yii\base\InvalidConfigException;
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use yii\base\InvalidValueException;
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/**
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* BaseManager is a base class implementing [[ManagerInterface]] for RBAC management.
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*
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* For more details and usage information on DbManager, see the [guide article on security authorization](guide:security-authorization).
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*
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* @property Role[] $defaultRoleInstances Default roles. The array is indexed by the role names. This property
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* is read-only.
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* @property string[] $defaultRoles Default roles. Note that the type of this property differs in getter and
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* setter. See [[getDefaultRoles()]] and [[setDefaultRoles()]] for details.
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*
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @since 2.0
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*/
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abstract class BaseManager extends Component implements ManagerInterface
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{
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/**
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* @var array a list of role names that are assigned to every user automatically without calling [[assign()]].
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* Note that these roles are applied to users, regardless of their state of authentication.
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*/
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protected $defaultRoles = [];
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/**
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* Returns the named auth item.
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* @param string $name the auth item name.
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* @return Item the auth item corresponding to the specified name. Null is returned if no such item.
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*/
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abstract protected function getItem($name);
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/**
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* Returns the items of the specified type.
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* @param int $type the auth item type (either [[Item::TYPE_ROLE]] or [[Item::TYPE_PERMISSION]]
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* @return Item[] the auth items of the specified type.
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*/
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abstract protected function getItems($type);
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/**
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* Adds an auth item to the RBAC system.
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* @param Item $item the item to add
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* @return bool whether the auth item is successfully added to the system
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* @throws \Exception if data validation or saving fails (such as the name of the role or permission is not unique)
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*/
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abstract protected function addItem($item);
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/**
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* Adds a rule to the RBAC system.
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* @param Rule $rule the rule to add
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* @return bool whether the rule is successfully added to the system
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* @throws \Exception if data validation or saving fails (such as the name of the rule is not unique)
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*/
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abstract protected function addRule($rule);
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/**
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* Removes an auth item from the RBAC system.
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* @param Item $item the item to remove
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* @return bool whether the role or permission is successfully removed
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* @throws \Exception if data validation or saving fails (such as the name of the role or permission is not unique)
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*/
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abstract protected function removeItem($item);
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/**
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* Removes a rule from the RBAC system.
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* @param Rule $rule the rule to remove
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* @return bool whether the rule is successfully removed
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* @throws \Exception if data validation or saving fails (such as the name of the rule is not unique)
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*/
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abstract protected function removeRule($rule);
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/**
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* Updates an auth item in the RBAC system.
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* @param string $name the name of the item being updated
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* @param Item $item the updated item
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* @return bool whether the auth item is successfully updated
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* @throws \Exception if data validation or saving fails (such as the name of the role or permission is not unique)
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*/
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abstract protected function updateItem($name, $item);
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/**
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* Updates a rule to the RBAC system.
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* @param string $name the name of the rule being updated
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* @param Rule $rule the updated rule
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* @return bool whether the rule is successfully updated
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* @throws \Exception if data validation or saving fails (such as the name of the rule is not unique)
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*/
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abstract protected function updateRule($name, $rule);
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/**
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* {@inheritdoc}
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*/
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public function createRole($name)
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{
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$role = new Role();
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$role->name = $name;
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return $role;
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}
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/**
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* {@inheritdoc}
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*/
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public function createPermission($name)
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{
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$permission = new Permission();
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$permission->name = $name;
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return $permission;
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}
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/**
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* {@inheritdoc}
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*/
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public function add($object)
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{
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if ($object instanceof Item) {
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if ($object->ruleName && $this->getRule($object->ruleName) === null) {
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$rule = \Yii::createObject($object->ruleName);
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$rule->name = $object->ruleName;
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$this->addRule($rule);
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}
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return $this->addItem($object);
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} elseif ($object instanceof Rule) {
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return $this->addRule($object);
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}
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throw new InvalidArgumentException('Adding unsupported object type.');
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}
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/**
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* {@inheritdoc}
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*/
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public function remove($object)
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{
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if ($object instanceof Item) {
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return $this->removeItem($object);
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} elseif ($object instanceof Rule) {
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return $this->removeRule($object);
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}
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throw new InvalidArgumentException('Removing unsupported object type.');
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}
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/**
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* {@inheritdoc}
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*/
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public function update($name, $object)
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{
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if ($object instanceof Item) {
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if ($object->ruleName && $this->getRule($object->ruleName) === null) {
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$rule = \Yii::createObject($object->ruleName);
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$rule->name = $object->ruleName;
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$this->addRule($rule);
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}
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return $this->updateItem($name, $object);
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} elseif ($object instanceof Rule) {
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return $this->updateRule($name, $object);
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}
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throw new InvalidArgumentException('Updating unsupported object type.');
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}
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/**
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* {@inheritdoc}
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*/
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public function getRole($name)
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{
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$item = $this->getItem($name);
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return $item instanceof Item && $item->type == Item::TYPE_ROLE ? $item : null;
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}
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/**
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* {@inheritdoc}
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*/
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public function getPermission($name)
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{
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$item = $this->getItem($name);
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return $item instanceof Item && $item->type == Item::TYPE_PERMISSION ? $item : null;
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}
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/**
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* {@inheritdoc}
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*/
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public function getRoles()
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{
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return $this->getItems(Item::TYPE_ROLE);
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}
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/**
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* Set default roles
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* @param string[]|\Closure $roles either array of roles or a callable returning it
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* @throws InvalidArgumentException when $roles is neither array nor Closure
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* @throws InvalidValueException when Closure return is not an array
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* @since 2.0.14
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*/
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public function setDefaultRoles($roles)
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{
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if (is_array($roles)) {
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$this->defaultRoles = $roles;
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} elseif ($roles instanceof \Closure) {
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$roles = call_user_func($roles);
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if (!is_array($roles)) {
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throw new InvalidValueException('Default roles closure must return an array');
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}
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$this->defaultRoles = $roles;
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} else {
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throw new InvalidArgumentException('Default roles must be either an array or a callable');
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}
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}
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/**
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* Get default roles
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* @return string[] default roles
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* @since 2.0.14
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*/
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public function getDefaultRoles()
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{
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return $this->defaultRoles;
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}
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/**
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* Returns defaultRoles as array of Role objects.
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* @since 2.0.12
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* @return Role[] default roles. The array is indexed by the role names
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*/
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public function getDefaultRoleInstances()
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{
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$result = [];
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foreach ($this->defaultRoles as $roleName) {
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$result[$roleName] = $this->createRole($roleName);
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}
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return $result;
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}
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/**
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* {@inheritdoc}
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*/
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public function getPermissions()
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{
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return $this->getItems(Item::TYPE_PERMISSION);
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}
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/**
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* Executes the rule associated with the specified auth item.
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*
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* If the item does not specify a rule, this method will return true. Otherwise, it will
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* return the value of [[Rule::execute()]].
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*
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* @param string|int $user the user ID. This should be either an integer or a string representing
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* the unique identifier of a user. See [[\yii\web\User::id]].
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* @param Item $item the auth item that needs to execute its rule
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* @param array $params parameters passed to [[CheckAccessInterface::checkAccess()]] and will be passed to the rule
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* @return bool the return value of [[Rule::execute()]]. If the auth item does not specify a rule, true will be returned.
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* @throws InvalidConfigException if the auth item has an invalid rule.
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*/
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protected function executeRule($user, $item, $params)
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{
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if ($item->ruleName === null) {
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return true;
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}
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$rule = $this->getRule($item->ruleName);
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if ($rule instanceof Rule) {
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return $rule->execute($user, $item, $params);
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}
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throw new InvalidConfigException("Rule not found: {$item->ruleName}");
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}
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/**
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* Checks whether array of $assignments is empty and [[defaultRoles]] property is empty as well.
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*
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* @param Assignment[] $assignments array of user's assignments
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* @return bool whether array of $assignments is empty and [[defaultRoles]] property is empty as well
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* @since 2.0.11
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*/
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protected function hasNoAssignments(array $assignments)
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{
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return empty($assignments) && empty($this->defaultRoles);
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}
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}
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