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<?php |
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/** |
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* @package CleverStyle Framework |
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* @author Nazar Mokrynskyi <[email protected]> |
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* @copyright Copyright (c) 2011-2016, Nazar Mokrynskyi |
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* @license MIT License, see license.txt |
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*/ |
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namespace cs\User; |
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use |
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cs\Group as System_Group, |
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cs\Permission as System_Permission, |
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cs\Permission\Any, |
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cs\User; |
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/** |
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* Trait that contains all methods from <i>>cs\User</i> for working with user permissions |
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* |
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* @property int $id |
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* @property \cs\Cache\Prefix $cache |
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* |
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* @method false|int[] get_groups(false|int $user) |
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* @method bool admin() |
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*/ |
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trait Permission { |
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use |
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Any; |
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/** |
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* Permissions cache for users |
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* @var array |
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*/ |
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protected $permissions = []; |
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/** |
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* Get permission state for specified user |
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* |
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* Rule: if not denied - allowed (users), if not allowed - denied (admins) |
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* |
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* @param string $group Permission group |
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* @param string $label Permission label |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return bool If permission exists - returns its state for specified user, otherwise for admin permissions returns <b>false</b> and for others <b>true</b> |
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*/ |
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function get_permission ($group, $label, $user = false) { |
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$user = (int)$user ?: $this->id; |
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if ($user == User::ROOT_ID) { |
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return true; |
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} |
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$group_label_exploded = explode('/', "$group/$label"); |
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/** |
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* Default permissions values: |
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* |
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* - only administrators have access to `admin/*` URLs by default |
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* - only administrators have access to `api/{module}/admin/*` URLs by default |
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* - all other URLs are available to everyone by default |
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*/ |
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$admin_section = $group_label_exploded[0] === 'admin' || ($group_label_exploded[0] === 'api' && @$group_label_exploded[2] === 'admin'); |
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if (!$user || ($admin_section && !$this->admin())) { |
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return false; |
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} |
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$all_permissions = System_Permission::instance()->get_all(); |
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if (isset($all_permissions[$group][$label])) { |
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$user_permissions = $this->get_permission_internal($user); |
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$permission_id = $all_permissions[$group][$label]; |
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return isset($user_permissions[$permission_id]) ? (bool)$user_permissions[$permission_id] : !$admin_section; |
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} |
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return true; |
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} |
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/** |
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* @param int $user |
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* |
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* @return array |
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*/ |
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protected function get_permission_internal ($user) { |
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if (isset($this->permissions[$user])) { |
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return $this->permissions[$user]; |
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} |
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$permissions = $this->cache->get( |
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"permissions/computed/$user", |
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function () use ($user) { |
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$permissions = []; |
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if ($user != User::GUEST_ID) { |
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$Group = System_Group::instance(); |
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foreach ($this->get_groups($user) ?: [] as $group_id) { |
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$permissions = ($Group->get_permissions($group_id) ?: []) + $permissions; |
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} |
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} |
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$permissions = ($this->get_permissions($user) ?: []) + $permissions; |
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return $permissions; |
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} |
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); |
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if ($this->memory_cache || $user == User::GUEST_ID) { |
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$this->permissions[$user] = $permissions; |
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} |
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return $permissions; |
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} |
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/** |
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* Set permission state for specified user |
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* |
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* @param string $group Permission group |
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* @param string $label Permission label |
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* @param int $value 1 - allow, 0 - deny, -1 - undefined (remove permission, and use default value) |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return bool |
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*/ |
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function set_permission ($group, $label, $value, $user = false) { |
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$permission = System_Permission::instance()->get(null, $group, $label); |
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if ($permission) { |
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return $this->set_permissions( |
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[ |
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$permission[0]['id'] => $value |
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], |
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$user |
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); |
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} |
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return false; |
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} |
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/** |
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* Delete permission state for specified user |
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* |
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* @param string $group Permission group |
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* @param string $label Permission label |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return bool |
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*/ |
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function del_permission ($group, $label, $user = false) { |
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return $this->set_permission($group, $label, -1, $user); |
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} |
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/** |
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* Get array of all permissions states for specified user |
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* |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return int[]|false |
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*/ |
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function get_permissions ($user = false) { |
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$user = (int)$user ?: $this->id; |
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if ($user == User::ROOT_ID || !$user) { |
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return false; |
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} |
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return $this->get_any_permissions($user, 'user'); |
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} |
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/** |
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* Set user's permissions according to the given array |
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* |
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* @param array $data |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return bool |
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*/ |
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function set_permissions ($data, $user = false) { |
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$user = (int)$user ?: $this->id; |
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if ($user == User::ROOT_ID || !$user) { |
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return false; |
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} |
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$result = $this->set_any_permissions($data, $user, 'user'); |
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$this->cache->del("permissions/computed/$user"); |
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unset($this->permissions[$user]); |
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return $result; |
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} |
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/** |
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* Delete all user's permissions |
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* |
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* @param false|int $user If not specified - current user assumed |
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* |
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* @return bool |
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*/ |
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function del_permissions_all ($user = false) { |
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$user = (int)$user ?: $this->id; |
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if ($user == User::ROOT_ID || !$user) { |
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return false; |
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} |
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$result = $this->del_any_permissions_all($user, 'user'); |
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$this->cache->del("permissions/computed/$user"); |
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unset($this->permissions[$user]); |
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return $result; |
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} |
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} |
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nazar-pc /
CleverStyle-Framework
