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<?php |
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declare(strict_types=1); |
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namespace Casbin; |
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use Casbin\Exceptions\CasbinException; |
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use Casbin\Util\Util; |
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/** |
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* Enforcer = ManagementEnforcer + RBAC API. |
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* |
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* @author [email protected] |
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*/ |
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class Enforcer extends ManagementEnforcer |
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{ |
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/** |
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* Gets the roles that a user has. |
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* |
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* @param string $name |
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* @param string ...$domain |
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* @return string[] |
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*/ |
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public function getRolesForUser(string $name, string ...$domain): array |
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{ |
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return $this->model['g']['g']->rm->getRoles($name, ...$domain); |
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} |
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/** |
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* Gets the users that has a role. |
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* |
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* @param string $name |
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* @param string ...$domain |
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* |
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* @return string[] |
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*/ |
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public function getUsersForRole(string $name, string ...$domain): array |
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{ |
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return $this->model['g']['g']->rm->getUsers($name, ...$domain); |
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} |
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/** |
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* Determines whether a user has a role. |
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* |
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* @param string $name |
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* @param string $role |
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* @param string ...$domain |
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* |
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* @return bool |
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*/ |
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public function hasRoleForUser(string $name, string $role, string ...$domain): bool |
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{ |
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$roles = $this->getRolesForUser($name, ...$domain); |
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return in_array($role, $roles, true); |
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} |
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/** |
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* Adds a role for a user. |
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* returns false if the user already has the role (aka not affected). |
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* |
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* @param string $user |
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* @param string $role |
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* @param string ...$domain |
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* @return bool |
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*/ |
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public function addRoleForUser(string $user, string $role, string ...$domain): bool |
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{ |
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return $this->addGroupingPolicy(...array_merge([$user, $role], $domain)); |
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} |
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/** |
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* @param string $user |
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* @param string[] $roles |
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* @param string ...$domain |
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* |
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* @return bool |
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*/ |
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public function addRolesForUser(string $user, array $roles, string ...$domain): bool |
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{ |
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return $this->addGroupingPolicies( |
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array_map(function ($role) use ($user, $domain) { |
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return array_merge([$user, $role], $domain); |
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}, $roles) |
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); |
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} |
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/** |
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* Deletes a role for a user. |
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* returns false if the user does not have the role (aka not affected). |
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* |
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* @param string $user |
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* @param string $role |
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* @param string ...$domain |
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* |
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* @return bool |
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*/ |
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public function deleteRoleForUser(string $user, string $role, string ...$domain): bool |
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{ |
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return $this->removeGroupingPolicy(...array_merge([$user, $role], $domain)); |
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} |
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/** |
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* Deletes all roles for a user. |
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* Returns false if the user does not have any roles (aka not affected). |
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* |
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* @param string $user |
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* @param string ...$domain |
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* |
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* @return bool |
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* @throws CasbinException |
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*/ |
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public function deleteRolesForUser(string $user, string ...$domain): bool |
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{ |
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if (count($domain) > 1) { |
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throw new CasbinException('error: domain should be 1 parameter'); |
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} |
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return $this->removeFilteredGroupingPolicy(0, ...array_merge([$user, ''], $domain)); |
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} |
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/** |
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* Deletes a user. |
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* Returns false if the user does not exist (aka not affected). |
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* |
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* @param string $user |
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* |
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* @return bool |
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*/ |
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public function deleteUser(string $user): bool |
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{ |
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$res1 = $this->removeFilteredGroupingPolicy(0, $user); |
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$res2 = $this->removeFilteredPolicy(0, $user); |
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return $res1 || $res2; |
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} |
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/** |
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* Deletes a role. |
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* @param string $role |
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* @return bool |
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*/ |
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public function deleteRole(string $role): bool |
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{ |
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$res1 = $this->removeFilteredGroupingPolicy(1, $role); |
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$res2 = $this->removeFilteredPolicy(0, $role); |
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return $res1 || $res2; |
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} |
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/** |
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* Deletes a permission. |
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* Returns false if the permission does not exist (aka not affected). |
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* |
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* @param string ...$permission |
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* |
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* @return bool |
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*/ |
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public function deletePermission(string ...$permission): bool |
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{ |
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return $this->removeFilteredPolicy(1, ...$permission); |
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} |
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/** |
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* Adds a permission for a user or role. |
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* Returns false if the user or role already has the permission (aka not affected). |
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* |
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* @param string $user |
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* @param string ...$permission |
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* |
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* @return bool |
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*/ |
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public function addPermissionForUser(string $user, string ...$permission): bool |
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{ |
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$params = array_merge([$user], $permission); |
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return $this->addPolicy(...$params); |
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} |
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/** |
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* AddPermissionsForUser adds multiple permissions for a user or role. |
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* Returns false if the user or role already has one of the permissions (aka not affected). |
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* |
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* @param string $user |
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* @param array ...$permissions |
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* @return bool |
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*/ |
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public function addPermissionsForUser(string $user, array ...$permissions): bool |
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{ |
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$rules = []; |
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foreach ($permissions as $permission) { |
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$rules[] = array_merge([$user], $permission); |
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} |
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return $this->addPolicies($rules); |
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} |
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/** |
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* Deletes a permission for a user or role. |
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* Returns false if the user or role does not have the permission (aka not affected). |
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* |
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* @param string $user |
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* @param string ...$permission |
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* |
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* @return bool |
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*/ |
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public function deletePermissionForUser(string $user, string ...$permission): bool |
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{ |
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$params = array_merge([$user], $permission); |
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return $this->removePolicy(...$params); |
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} |
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/** |
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* Deletes permissions for a user or role. |
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* Returns false if the user or role does not have any permissions (aka not affected). |
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* |
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* @param string $user |
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* |
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* @return bool |
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*/ |
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public function deletePermissionsForUser(string $user): bool |
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{ |
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return $this->removeFilteredPolicy(0, $user); |
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} |
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/** |
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* Gets permissions for a user or role. |
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* |
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* @param string $user |
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* @param string ...$domain |
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* |
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* @return array |
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*/ |
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public function getPermissionsForUser(string $user, string ...$domain): array |
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{ |
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$permission = []; |
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foreach ($this->model['p'] as $ptype => $assertion) { |
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$args = []; |
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$args[0] = $user; |
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foreach ($assertion->tokens as $i => $token) { |
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if ($token == sprintf('%s_dom', $ptype)) { |
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$args[$i] = $domain[0]; |
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break; |
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} |
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} |
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$perm = $this->getFilteredPolicy(0, ...$args); |
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$permission = array_merge($permission, $perm); |
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} |
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return $permission; |
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} |
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/** |
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* Determines whether a user has a permission. |
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* |
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* @param string $user |
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* @param string ...$permission |
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* |
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* @return bool |
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*/ |
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public function hasPermissionForUser(string $user, string ...$permission): bool |
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{ |
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$params = array_merge([$user], $permission); |
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return $this->hasPolicy($params); |
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} |
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/** |
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* Gets implicit roles that a user has. |
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* Compared to getRolesForUser(), this function retrieves indirect roles besides direct roles. |
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* For example: |
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* g, alice, role:admin |
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* g, role:admin, role:user. |
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* |
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* getRolesForUser("alice") can only get: ["role:admin"]. |
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* But getImplicitRolesForUser("alice") will get: ["role:admin", "role:user"]. |
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* |
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* @param string $name |
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* @param string ...$domain |
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* |
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* @return array |
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*/ |
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public function getImplicitRolesForUser(string $name, string ...$domain): array |
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{ |
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$res = []; |
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$roleSet = []; |
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$roleSet[$name] = true; |
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$q = []; |
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$q[] = $name; |
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for (; count($q) > 0;) { |
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$name = $q[0]; |
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$q = array_slice($q, 1); |
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foreach ($this->rmMap as $rm) { |
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$roles = $rm->getRoles($name, ...$domain); |
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foreach ($roles as $r) { |
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if (!isset($roleSet[$r])) { |
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$res[] = $r; |
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$q[] = $r; |
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$roleSet[$r] = true; |
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} |
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} |
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} |
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} |
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return $res; |
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} |
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/** |
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* GetImplicitUsersForRole gets implicit users for a role. |
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* |
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* @param string $name |
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* @param string ...$domain |
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* @return array |
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*/ |
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public function getImplicitUsersForRole(string $name, string ...$domain): array |
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{ |
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$res = []; |
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$roleSet = []; |
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$roleSet[$name] = true; |
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$q = []; |
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$q[] = $name; |
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for (; count($q) > 0;) { |
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$name = $q[0]; |
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$q = array_slice($q, 1); |
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foreach ($this->rmMap as $rm) { |
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$roles = $rm->getUsers($name, ...$domain); |
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foreach ($roles as $r) { |
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if (!isset($roleSet[$r])) { |
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$res[] = $r; |
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$q[] = $r; |
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$roleSet[$r] = true; |
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} |
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} |
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} |
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} |
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return $res; |
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} |
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/** |
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* GetImplicitResourcesForUser returns all policies that user obtaining in domain |
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* |
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* @param string $user |
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* @param string ...$domain |
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* @return array |
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*/ |
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public function getImplicitResourcesForUser(string $user, string ...$domain): array |
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{ |
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$permissions = $this->getImplicitPermissionsForUser($user, ...$domain); |
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$res = []; |
357
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3 |
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foreach ($permissions as $permission) { |
358
|
3 |
|
if ($permission[0] == $user) { |
359
|
3 |
|
$res[] = $permission; |
360
|
3 |
|
continue; |
361
|
|
|
} |
362
|
3 |
|
$resLocal = [[$user]]; |
363
|
3 |
|
$tokensLength = count($permission); |
364
|
3 |
|
$t = [[]]; |
365
|
3 |
|
foreach (array_slice($permission, 1) as $token) { |
366
|
3 |
|
$tokens = $this->getImplicitUsersForRole($token, ...$domain); |
367
|
3 |
|
$tokens[] = $token; |
368
|
3 |
|
$t[] = $tokens; |
369
|
|
|
} |
370
|
|
|
|
371
|
3 |
|
for ($i = 1; $i < $tokensLength; $i++) { |
372
|
3 |
|
$n = []; |
373
|
3 |
|
foreach ($t[$i] as $tokens) { |
374
|
3 |
|
foreach ($resLocal as $policy) { |
375
|
3 |
|
$temp = []; |
376
|
3 |
|
$temp = array_merge($temp, $policy); |
377
|
3 |
|
$temp[] = $tokens; |
378
|
3 |
|
$n[] = $temp; |
379
|
|
|
} |
380
|
|
|
} |
381
|
3 |
|
$resLocal = $n; |
382
|
|
|
} |
383
|
3 |
|
$res = array_merge($res, $resLocal); |
384
|
|
|
} |
385
|
3 |
|
return $res; |
386
|
|
|
} |
387
|
|
|
|
388
|
|
|
/** |
389
|
|
|
* Gets implicit permissions for a user or role. |
390
|
|
|
* Compared to getPermissionsForUser(), this function retrieves permissions for inherited roles. |
391
|
|
|
* For example: |
392
|
|
|
* p, admin, data1, read |
393
|
|
|
* p, alice, data2, read |
394
|
|
|
* g, alice, admin. |
395
|
|
|
* |
396
|
|
|
* getPermissionsForUser("alice") can only get: [["alice", "data2", "read"]]. |
|
|
|
|
397
|
|
|
* But getImplicitPermissionsForUser("alice") will get: [["admin", "data1", "read"], ["alice", "data2", "read"]]. |
398
|
|
|
* |
399
|
|
|
* @param string $user |
|
|
|
|
400
|
|
|
* @param string ...$domain |
|
|
|
|
401
|
|
|
* |
402
|
|
|
* @return array |
403
|
|
|
* @throws CasbinException |
404
|
|
|
*/ |
405
|
6 |
|
public function getImplicitPermissionsForUser(string $user, string ...$domain): array |
406
|
|
|
{ |
407
|
6 |
|
$roles = array_merge( |
408
|
6 |
|
[$user], |
409
|
6 |
|
$this->getImplicitRolesForUser($user, ...$domain) |
410
|
2 |
|
); |
411
|
|
|
|
412
|
6 |
|
$len = \count($domain); |
413
|
6 |
|
if ($len > 1) { |
414
|
|
|
throw new CasbinException('error: domain should be 1 parameter'); |
415
|
|
|
} |
416
|
|
|
|
417
|
6 |
|
$res = []; |
418
|
6 |
|
foreach ($roles as $role) { |
419
|
6 |
|
if (1 == $len) { |
420
|
3 |
|
$permissions = $this->getPermissionsForUserInDomain($role, $domain[0]); |
421
|
|
|
} else { |
422
|
6 |
|
$permissions = $this->getPermissionsForUser($role); |
423
|
|
|
} |
424
|
|
|
|
425
|
6 |
|
$res = array_merge($res, $permissions); |
426
|
|
|
} |
427
|
|
|
|
428
|
6 |
|
return $res; |
429
|
|
|
} |
430
|
|
|
|
431
|
|
|
/** |
432
|
|
|
* Gets implicit users for a permission. |
433
|
|
|
* For example: |
434
|
|
|
* p, admin, data1, read |
435
|
|
|
* p, bob, data1, read |
436
|
|
|
* g, alice, admin |
437
|
|
|
* getImplicitUsersForPermission("data1", "read") will get: ["alice", "bob"]. |
438
|
|
|
* Note: only users will be returned, roles (2nd arg in "g") will be excluded. |
439
|
|
|
* |
440
|
|
|
* @param string ...$permission |
|
|
|
|
441
|
|
|
* |
442
|
|
|
* @return array |
443
|
|
|
* @throws CasbinException |
444
|
|
|
*/ |
445
|
3 |
|
public function getImplicitUsersForPermission(string ...$permission): array |
446
|
|
|
{ |
447
|
3 |
|
$pSubjects = $this->getAllSubjects(); |
448
|
3 |
|
$gInherit = $this->model->getValuesForFieldInPolicyAllTypes("g", 1); |
449
|
3 |
|
$gSubjects = $this->model->getValuesForFieldInPolicyAllTypes("g", 0); |
450
|
|
|
|
451
|
3 |
|
$subjects = array_merge($pSubjects, $gSubjects); |
452
|
3 |
|
Util::ArrayRemoveDuplicates($subjects); |
453
|
|
|
|
454
|
3 |
|
$subjects = array_diff($subjects, $gInherit); |
455
|
|
|
|
456
|
3 |
|
$res = []; |
457
|
3 |
|
foreach ($subjects as $user) { |
458
|
3 |
|
$req = $permission; |
459
|
3 |
|
array_unshift($req, $user); |
460
|
3 |
|
$allowed = $this->enforce(...$req); |
461
|
|
|
|
462
|
3 |
|
if ($allowed) { |
463
|
3 |
|
$res[] = $user; |
464
|
|
|
} |
465
|
|
|
} |
466
|
|
|
|
467
|
3 |
|
return $res; |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
/** |
471
|
|
|
* GetAllUsersByDomain would get all users associated with the domain. |
472
|
|
|
* |
473
|
|
|
* @param string $domain |
|
|
|
|
474
|
|
|
* @return string[] |
|
|
|
|
475
|
|
|
*/ |
476
|
3 |
|
public function getAllUsersByDomain(string $domain): array |
477
|
|
|
{ |
478
|
3 |
|
$m = []; |
479
|
3 |
|
$g = $this->model['g']['g']; |
480
|
3 |
|
$p = $this->model['p']['p']; |
481
|
3 |
|
$users = []; |
482
|
3 |
|
$index = $this->getDomainIndex('p'); |
483
|
|
|
|
484
|
1 |
|
$getUser = function (int $index, array $policies, string $domain, array $m): array { |
485
|
3 |
|
if (count($policies) == 0 || count($policies[0]) <= $index) { |
486
|
|
|
return []; |
487
|
|
|
} |
488
|
3 |
|
$res = []; |
489
|
3 |
|
foreach ($policies as $policy) { |
490
|
3 |
|
$ok = isset($m[$policy[0]]); |
491
|
3 |
|
if ($policy[$index] == $domain && !$ok) { |
492
|
3 |
|
$res[] = $policy[0]; |
493
|
3 |
|
$m[$policy[0]] = []; |
494
|
|
|
} |
495
|
|
|
} |
496
|
3 |
|
return $res; |
497
|
3 |
|
}; |
498
|
|
|
|
499
|
3 |
|
$users = array_merge($users, $getUser(2, $g->policy, $domain, $m)); |
500
|
3 |
|
$users = array_merge($users, $getUser($index, $p->policy, $domain, $m)); |
501
|
3 |
|
return $users; |
502
|
|
|
} |
503
|
|
|
|
504
|
|
|
/** |
505
|
|
|
* Gets the users that has a role inside a domain. Add by Gordon. |
506
|
|
|
* |
507
|
|
|
* @param string $name |
|
|
|
|
508
|
|
|
* @param string $domain |
|
|
|
|
509
|
|
|
* |
510
|
|
|
* @return array |
511
|
|
|
*/ |
512
|
3 |
|
public function getUsersForRoleInDomain(string $name, string $domain): array |
513
|
|
|
{ |
514
|
3 |
|
return $this->model['g']['g']->rm->getUsers($name, $domain); |
515
|
|
|
} |
516
|
|
|
|
517
|
|
|
/** |
518
|
|
|
* Gets the roles that a user has inside a domain. |
519
|
|
|
* |
520
|
|
|
* @param string $name |
|
|
|
|
521
|
|
|
* @param string $domain |
|
|
|
|
522
|
|
|
* |
523
|
|
|
* @return array |
524
|
|
|
*/ |
525
|
3 |
|
public function getRolesForUserInDomain(string $name, string $domain): array |
526
|
|
|
{ |
527
|
3 |
|
return $this->model['g']['g']->rm->getRoles($name, $domain); |
528
|
|
|
} |
529
|
|
|
|
530
|
|
|
/** |
531
|
|
|
* Gets permissions for a user or role inside a domain. |
532
|
|
|
* |
533
|
|
|
* @param string $name |
|
|
|
|
534
|
|
|
* @param string $domain |
|
|
|
|
535
|
|
|
* |
536
|
|
|
* @return array |
537
|
|
|
*/ |
538
|
6 |
|
public function getPermissionsForUserInDomain(string $name, string $domain): array |
539
|
|
|
{ |
540
|
6 |
|
return $this->getFilteredPolicy(0, $name, $domain); |
541
|
|
|
} |
542
|
|
|
|
543
|
|
|
/** |
544
|
|
|
* Adds a role for a user inside a domain. |
545
|
|
|
* returns false if the user already has the role (aka not affected). |
546
|
|
|
* |
547
|
|
|
* @param string $user |
|
|
|
|
548
|
|
|
* @param string $role |
|
|
|
|
549
|
|
|
* @param string $domain |
|
|
|
|
550
|
|
|
* |
551
|
|
|
* @return bool |
552
|
|
|
*/ |
553
|
9 |
|
public function addRoleForUserInDomain(string $user, string $role, string $domain): bool |
554
|
|
|
{ |
555
|
9 |
|
return $this->addGroupingPolicy($user, $role, $domain); |
556
|
|
|
} |
557
|
|
|
|
558
|
|
|
/** |
559
|
|
|
* Deletes a role for a user inside a domain. |
560
|
|
|
* Returns false if the user does not have the role (aka not affected). |
561
|
|
|
* |
562
|
|
|
* @param string $user |
|
|
|
|
563
|
|
|
* @param string $role |
|
|
|
|
564
|
|
|
* @param string $domain |
|
|
|
|
565
|
|
|
* |
566
|
|
|
* @return bool |
567
|
|
|
*/ |
568
|
6 |
|
public function deleteRoleForUserInDomain(string $user, string $role, string $domain): bool |
569
|
|
|
{ |
570
|
6 |
|
return $this->removeGroupingPolicy($user, $role, $domain); |
571
|
|
|
} |
572
|
|
|
|
573
|
|
|
/** |
574
|
|
|
* DeleteRolesForUserInDomain deletes all roles for a user inside a domain. |
575
|
|
|
* Returns false if the user does not have any roles (aka not affected). |
576
|
|
|
* |
577
|
|
|
* @param string $user |
|
|
|
|
578
|
|
|
* @param string $domain |
|
|
|
|
579
|
|
|
* |
580
|
|
|
* @return bool |
581
|
|
|
*/ |
582
|
3 |
|
public function deleteRolesForUserInDomain(string $user, string $domain): bool |
583
|
|
|
{ |
584
|
3 |
|
$roles = $this->model['g']['g']->rm->getRoles($user, $domain); |
585
|
|
|
|
586
|
3 |
|
$rules = []; |
587
|
3 |
|
foreach ($roles as $role) { |
588
|
3 |
|
$rules[] = [$user, $role, $domain]; |
589
|
|
|
} |
590
|
|
|
|
591
|
3 |
|
return $this->removeGroupingPolicies($rules); |
592
|
|
|
} |
593
|
|
|
|
594
|
|
|
/** |
595
|
|
|
* DeleteAllUsersByDomain would delete all users associated with the domain. |
596
|
|
|
* |
597
|
|
|
* @param string $domain |
|
|
|
|
598
|
|
|
* @return bool |
|
|
|
|
599
|
|
|
*/ |
600
|
6 |
|
public function deleteAllUsersByDomain(string $domain): bool |
601
|
|
|
{ |
602
|
6 |
|
$g = $this->model['g']['g']; |
603
|
6 |
|
$p = $this->model['p']['p']; |
604
|
6 |
|
$index = $this->getDomainIndex('p'); |
605
|
|
|
|
606
|
2 |
|
$getUser = function (int $index, array $policies, string $domain): array { |
607
|
6 |
|
if (count($policies) == 0 || count($policies[0]) <= $index) { |
608
|
|
|
return []; |
609
|
|
|
} |
610
|
6 |
|
$res = []; |
611
|
6 |
|
foreach ($policies as $policy) { |
612
|
6 |
|
if ($policy[$index] == $domain) { |
613
|
6 |
|
$res[] = $policy; |
614
|
|
|
} |
615
|
|
|
} |
616
|
6 |
|
return $res; |
617
|
6 |
|
}; |
618
|
|
|
|
619
|
6 |
|
$users = $getUser(2, $g->policy, $domain); |
620
|
6 |
|
$this->removeGroupingPolicies($users); |
621
|
6 |
|
$users = $getUser($index, $p->policy, $domain); |
622
|
6 |
|
$this->removePolicies($users); |
623
|
6 |
|
return true; |
624
|
|
|
} |
625
|
|
|
|
626
|
|
|
/** |
627
|
|
|
* DeleteDomains would delete all associated users and roles. |
628
|
|
|
* It would delete all domains if parameter is not provided. |
629
|
|
|
* |
630
|
|
|
* @param string ...$domains |
|
|
|
|
631
|
|
|
* @return bool |
|
|
|
|
632
|
|
|
*/ |
633
|
3 |
|
public function deleteDomains(string ...$domains): bool |
634
|
|
|
{ |
635
|
3 |
|
if (count($domains) == 0) { |
636
|
3 |
|
$this->clearPolicy(); |
637
|
3 |
|
return true; |
638
|
|
|
} |
639
|
3 |
|
foreach ($domains as $domain) { |
640
|
3 |
|
$this->deleteAllUsersByDomain($domain); |
641
|
|
|
} |
642
|
3 |
|
return true; |
643
|
|
|
} |
644
|
|
|
} |
645
|
|
|
|