2021-06-26 11:23:15 -04:00
|
|
|
<?php
|
|
|
|
|
|
|
|
namespace BookStack\Auth\Permissions;
|
2018-09-25 07:30:50 -04:00
|
|
|
|
2018-09-25 11:58:03 -04:00
|
|
|
use BookStack\Auth\Role;
|
2021-03-14 15:52:07 -04:00
|
|
|
use BookStack\Auth\User;
|
2022-07-16 14:28:04 -04:00
|
|
|
use BookStack\Entities\Models\Chapter;
|
2020-11-21 19:17:45 -05:00
|
|
|
use BookStack\Entities\Models\Entity;
|
2021-03-13 10:18:37 -05:00
|
|
|
use BookStack\Entities\Models\Page;
|
2020-12-30 13:25:35 -05:00
|
|
|
use BookStack\Model;
|
|
|
|
use BookStack\Traits\HasCreatorAndUpdater;
|
|
|
|
use BookStack\Traits\HasOwner;
|
2017-01-01 11:05:44 -05:00
|
|
|
use Illuminate\Database\Eloquent\Builder;
|
2017-04-30 06:38:58 -04:00
|
|
|
use Illuminate\Database\Query\Builder as QueryBuilder;
|
2022-07-16 08:17:08 -04:00
|
|
|
use InvalidArgumentException;
|
2016-02-29 15:31:21 -05:00
|
|
|
|
2022-07-12 15:15:41 -04:00
|
|
|
class PermissionApplicator
|
2016-02-28 14:03:04 -05:00
|
|
|
{
|
2016-03-05 13:09:21 -05:00
|
|
|
/**
|
|
|
|
* Checks if an entity has a restriction set upon it.
|
2021-06-26 11:23:15 -04:00
|
|
|
*
|
2020-12-30 13:25:35 -05:00
|
|
|
* @param HasCreatorAndUpdater|HasOwner $ownable
|
2016-03-05 13:09:21 -05:00
|
|
|
*/
|
2020-12-30 13:25:35 -05:00
|
|
|
public function checkOwnableUserAccess(Model $ownable, string $permission): bool
|
2016-02-29 15:31:21 -05:00
|
|
|
{
|
2016-04-24 11:54:20 -04:00
|
|
|
$explodedPermission = explode('-', $permission);
|
2022-07-16 14:28:04 -04:00
|
|
|
$action = $explodedPermission[1] ?? $explodedPermission[0];
|
2022-07-16 15:55:32 -04:00
|
|
|
$fullPermission = count($explodedPermission) > 1 ? $permission : $ownable->getMorphClass() . '-' . $permission;
|
|
|
|
|
2021-03-14 15:52:07 -04:00
|
|
|
$user = $this->currentUser();
|
2022-07-16 14:28:04 -04:00
|
|
|
$userRoleIds = $this->getCurrentUserRoleIds();
|
2016-04-24 11:54:20 -04:00
|
|
|
|
2022-07-16 15:55:32 -04:00
|
|
|
$allRolePermission = $user->can($fullPermission . '-all');
|
|
|
|
$ownRolePermission = $user->can($fullPermission . '-own');
|
2020-12-30 17:18:28 -05:00
|
|
|
$nonJointPermissions = ['restrictions', 'image', 'attachment', 'comment'];
|
2022-07-16 14:28:04 -04:00
|
|
|
$ownerField = ($ownable instanceof Entity) ? 'owned_by' : 'created_by';
|
2022-08-10 03:06:48 -04:00
|
|
|
$ownableFieldVal = $ownable->getAttribute($ownerField);
|
|
|
|
|
|
|
|
if (is_null($ownableFieldVal)) {
|
|
|
|
throw new InvalidArgumentException("{$ownerField} field used but has not been loaded");
|
|
|
|
}
|
|
|
|
|
|
|
|
$isOwner = $user->id === $ownableFieldVal;
|
2022-07-16 14:28:04 -04:00
|
|
|
$hasRolePermission = $allRolePermission || ($isOwner && $ownRolePermission);
|
2020-12-30 17:18:28 -05:00
|
|
|
|
2016-05-01 16:20:50 -04:00
|
|
|
// Handle non entity specific jointPermissions
|
2020-12-30 17:18:28 -05:00
|
|
|
if (in_array($explodedPermission[0], $nonJointPermissions)) {
|
2022-07-16 14:28:04 -04:00
|
|
|
return $hasRolePermission;
|
|
|
|
}
|
|
|
|
|
2022-07-16 15:55:32 -04:00
|
|
|
$hasApplicableEntityPermissions = $this->hasEntityPermission($ownable, $userRoleIds, $action);
|
2022-07-16 14:28:04 -04:00
|
|
|
|
2022-07-16 15:55:32 -04:00
|
|
|
return is_null($hasApplicableEntityPermissions) ? $hasRolePermission : $hasApplicableEntityPermissions;
|
2022-07-16 14:28:04 -04:00
|
|
|
}
|
2021-06-26 11:23:15 -04:00
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
/**
|
2022-07-16 15:55:32 -04:00
|
|
|
* Check if there are permissions that are applicable for the given entity item, action and roles.
|
|
|
|
* Returns null when no entity permissions are in force.
|
2022-07-16 14:28:04 -04:00
|
|
|
*/
|
2022-07-16 15:55:32 -04:00
|
|
|
protected function hasEntityPermission(Entity $entity, array $userRoleIds, string $action): ?bool
|
2022-07-16 14:28:04 -04:00
|
|
|
{
|
2022-10-08 08:52:59 -04:00
|
|
|
$this->ensureValidEntityAction($action);
|
|
|
|
|
2022-07-16 15:55:32 -04:00
|
|
|
$adminRoleId = Role::getSystemRole('admin')->id;
|
|
|
|
if (in_array($adminRoleId, $userRoleIds)) {
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
$chain = [$entity];
|
|
|
|
if ($entity instanceof Page && $entity->chapter_id) {
|
|
|
|
$chain[] = $entity->chapter;
|
2016-02-29 15:31:21 -05:00
|
|
|
}
|
2016-04-24 11:54:20 -04:00
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
if ($entity instanceof Page || $entity instanceof Chapter) {
|
|
|
|
$chain[] = $entity->book;
|
2016-04-26 16:48:17 -04:00
|
|
|
}
|
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
foreach ($chain as $currentEntity) {
|
2022-08-10 03:06:48 -04:00
|
|
|
if (is_null($currentEntity->restricted)) {
|
2022-08-16 06:27:22 -04:00
|
|
|
throw new InvalidArgumentException('Entity restricted field used but has not been loaded');
|
2022-08-10 03:06:48 -04:00
|
|
|
}
|
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
if ($currentEntity->restricted) {
|
|
|
|
return $currentEntity->permissions()
|
|
|
|
->whereIn('role_id', $userRoleIds)
|
2022-10-08 08:52:59 -04:00
|
|
|
->where($action, '=', true)
|
2022-07-16 15:55:32 -04:00
|
|
|
->count() > 0;
|
2022-07-16 14:28:04 -04:00
|
|
|
}
|
|
|
|
}
|
2021-06-26 11:23:15 -04:00
|
|
|
|
2022-07-16 14:28:04 -04:00
|
|
|
return null;
|
2016-02-28 14:03:04 -05:00
|
|
|
}
|
|
|
|
|
2019-01-02 00:55:28 -05:00
|
|
|
/**
|
2019-03-09 11:50:22 -05:00
|
|
|
* Checks if a user has the given permission for any items in the system.
|
2019-03-09 16:15:45 -05:00
|
|
|
* Can be passed an entity instance to filter on a specific type.
|
2019-01-02 00:55:28 -05:00
|
|
|
*/
|
2022-07-16 08:17:08 -04:00
|
|
|
public function checkUserHasEntityPermissionOnAny(string $action, string $entityClass = ''): bool
|
2019-01-02 00:55:28 -05:00
|
|
|
{
|
2022-10-08 08:52:59 -04:00
|
|
|
$this->ensureValidEntityAction($action);
|
2022-07-16 08:17:08 -04:00
|
|
|
|
|
|
|
$permissionQuery = EntityPermission::query()
|
2022-10-08 08:52:59 -04:00
|
|
|
->where($action, '=', true)
|
2022-07-16 08:17:08 -04:00
|
|
|
->whereIn('role_id', $this->getCurrentUserRoleIds());
|
2019-03-09 16:15:45 -05:00
|
|
|
|
2022-07-16 08:17:08 -04:00
|
|
|
if (!empty($entityClass)) {
|
|
|
|
/** @var Entity $entityInstance */
|
|
|
|
$entityInstance = app()->make($entityClass);
|
2022-10-08 08:52:59 -04:00
|
|
|
$permissionQuery = $permissionQuery->where('entity_type', '=', $entityInstance->getMorphClass());
|
2019-03-09 16:15:45 -05:00
|
|
|
}
|
2019-01-02 00:55:28 -05:00
|
|
|
|
2019-03-09 16:15:45 -05:00
|
|
|
$hasPermission = $permissionQuery->count() > 0;
|
2021-06-26 11:23:15 -04:00
|
|
|
|
2019-03-09 16:15:45 -05:00
|
|
|
return $hasPermission;
|
2019-01-02 00:55:28 -05:00
|
|
|
}
|
|
|
|
|
2017-01-15 10:00:29 -05:00
|
|
|
/**
|
2022-07-16 14:54:25 -04:00
|
|
|
* Limit the given entity query so that the query will only
|
2022-07-16 08:17:08 -04:00
|
|
|
* return items that the user has view permission for.
|
2017-01-15 10:00:29 -05:00
|
|
|
*/
|
2022-07-16 08:17:08 -04:00
|
|
|
public function restrictEntityQuery(Builder $query): Builder
|
2018-01-28 11:58:52 -05:00
|
|
|
{
|
2022-07-16 08:17:08 -04:00
|
|
|
return $query->where(function (Builder $parentQuery) {
|
|
|
|
$parentQuery->whereHas('jointPermissions', function (Builder $permissionQuery) {
|
|
|
|
$permissionQuery->whereIn('role_id', $this->getCurrentUserRoleIds())
|
2019-10-05 07:55:01 -04:00
|
|
|
->where(function (Builder $query) {
|
2021-03-14 16:32:33 -04:00
|
|
|
$this->addJointHasPermissionCheck($query, $this->currentUser()->id);
|
2019-01-27 05:29:23 -05:00
|
|
|
});
|
2018-09-20 14:48:08 -04:00
|
|
|
});
|
2019-10-05 07:55:01 -04:00
|
|
|
});
|
|
|
|
}
|
2017-01-22 07:02:30 -05:00
|
|
|
|
2019-10-05 07:55:01 -04:00
|
|
|
/**
|
|
|
|
* Extend the given page query to ensure draft items are not visible
|
|
|
|
* unless created by the given user.
|
|
|
|
*/
|
2022-07-16 14:54:25 -04:00
|
|
|
public function restrictDraftsOnPageQuery(Builder $query): Builder
|
2019-10-05 07:55:01 -04:00
|
|
|
{
|
|
|
|
return $query->where(function (Builder $query) {
|
|
|
|
$query->where('draft', '=', false)
|
|
|
|
->orWhere(function (Builder $query) {
|
|
|
|
$query->where('draft', '=', true)
|
2020-12-30 13:25:35 -05:00
|
|
|
->where('owned_by', '=', $this->currentUser()->id);
|
2019-10-05 07:55:01 -04:00
|
|
|
});
|
|
|
|
});
|
2017-01-01 16:21:11 -05:00
|
|
|
}
|
|
|
|
|
2016-02-28 14:03:04 -05:00
|
|
|
/**
|
2017-03-19 08:48:44 -04:00
|
|
|
* Filter items that have entities set as a polymorphic relation.
|
2021-11-29 19:06:17 -05:00
|
|
|
* For simplicity, this will not return results attached to draft pages.
|
|
|
|
* Draft pages should never really have related items though.
|
2021-06-26 11:23:15 -04:00
|
|
|
*
|
2021-09-29 13:41:11 -04:00
|
|
|
* @param Builder|QueryBuilder $query
|
2016-02-28 14:03:04 -05:00
|
|
|
*/
|
2022-07-16 14:54:25 -04:00
|
|
|
public function restrictEntityRelationQuery($query, string $tableName, string $entityIdColumn, string $entityTypeColumn)
|
2016-02-28 14:03:04 -05:00
|
|
|
{
|
2021-09-29 13:41:11 -04:00
|
|
|
$tableDetails = ['tableName' => $tableName, 'entityIdColumn' => $entityIdColumn, 'entityTypeColumn' => $entityTypeColumn];
|
2021-11-29 19:06:17 -05:00
|
|
|
$pageMorphClass = (new Page())->getMorphClass();
|
|
|
|
|
2022-07-16 08:17:08 -04:00
|
|
|
$q = $query->whereExists(function ($permissionQuery) use (&$tableDetails) {
|
2021-11-29 19:06:17 -05:00
|
|
|
/** @var Builder $permissionQuery */
|
|
|
|
$permissionQuery->select(['role_id'])->from('joint_permissions')
|
|
|
|
->whereColumn('joint_permissions.entity_id', '=', $tableDetails['tableName'] . '.' . $tableDetails['entityIdColumn'])
|
|
|
|
->whereColumn('joint_permissions.entity_type', '=', $tableDetails['tableName'] . '.' . $tableDetails['entityTypeColumn'])
|
2022-07-16 08:17:08 -04:00
|
|
|
->whereIn('joint_permissions.role_id', $this->getCurrentUserRoleIds())
|
2021-11-29 19:06:17 -05:00
|
|
|
->where(function (QueryBuilder $query) {
|
|
|
|
$this->addJointHasPermissionCheck($query, $this->currentUser()->id);
|
|
|
|
});
|
|
|
|
})->where(function ($query) use ($tableDetails, $pageMorphClass) {
|
|
|
|
/** @var Builder $query */
|
|
|
|
$query->where($tableDetails['entityTypeColumn'], '!=', $pageMorphClass)
|
2021-11-30 09:25:09 -05:00
|
|
|
->orWhereExists(function (QueryBuilder $query) use ($tableDetails, $pageMorphClass) {
|
2021-11-29 19:06:17 -05:00
|
|
|
$query->select('id')->from('pages')
|
|
|
|
->whereColumn('pages.id', '=', $tableDetails['tableName'] . '.' . $tableDetails['entityIdColumn'])
|
|
|
|
->where($tableDetails['tableName'] . '.' . $tableDetails['entityTypeColumn'], '=', $pageMorphClass)
|
|
|
|
->where('pages.draft', '=', false);
|
|
|
|
});
|
2016-02-28 14:03:04 -05:00
|
|
|
});
|
2021-03-14 15:52:07 -04:00
|
|
|
|
2016-09-17 13:22:04 -04:00
|
|
|
return $q;
|
2016-02-28 14:03:04 -05:00
|
|
|
}
|
|
|
|
|
2016-03-13 09:30:47 -04:00
|
|
|
/**
|
2022-07-16 14:54:25 -04:00
|
|
|
* Add conditions to a query for a model that's a relation of a page, so only the model results
|
|
|
|
* on visible pages are returned by the query.
|
|
|
|
* Is effectively the same as "restrictEntityRelationQuery" but takes into account page drafts
|
|
|
|
* while not expecting a polymorphic relation, Just a simpler one-page-to-many-relations set-up.
|
2016-03-13 09:30:47 -04:00
|
|
|
*/
|
2022-07-16 14:54:25 -04:00
|
|
|
public function restrictPageRelationQuery(Builder $query, string $tableName, string $pageIdColumn): Builder
|
2016-03-13 09:30:47 -04:00
|
|
|
{
|
2022-07-16 14:54:25 -04:00
|
|
|
$fullPageIdColumn = $tableName . '.' . $pageIdColumn;
|
|
|
|
$morphClass = (new Page())->getMorphClass();
|
2021-11-29 19:06:17 -05:00
|
|
|
|
2022-07-16 14:54:25 -04:00
|
|
|
$existsQuery = function ($permissionQuery) use ($fullPageIdColumn, $morphClass) {
|
2021-11-29 19:06:17 -05:00
|
|
|
/** @var Builder $permissionQuery */
|
|
|
|
$permissionQuery->select('joint_permissions.role_id')->from('joint_permissions')
|
2022-07-16 14:54:25 -04:00
|
|
|
->whereColumn('joint_permissions.entity_id', '=', $fullPageIdColumn)
|
2021-11-29 19:06:17 -05:00
|
|
|
->where('joint_permissions.entity_type', '=', $morphClass)
|
2022-07-16 08:17:08 -04:00
|
|
|
->whereIn('joint_permissions.role_id', $this->getCurrentUserRoleIds())
|
2021-11-29 19:06:17 -05:00
|
|
|
->where(function (QueryBuilder $query) {
|
|
|
|
$this->addJointHasPermissionCheck($query, $this->currentUser()->id);
|
2016-04-23 13:14:26 -04:00
|
|
|
});
|
2021-11-29 19:06:17 -05:00
|
|
|
};
|
|
|
|
|
2022-07-16 14:54:25 -04:00
|
|
|
$q = $query->where(function ($query) use ($existsQuery, $fullPageIdColumn) {
|
2021-11-29 19:06:17 -05:00
|
|
|
$query->whereExists($existsQuery)
|
2022-07-16 14:54:25 -04:00
|
|
|
->orWhere($fullPageIdColumn, '=', 0);
|
2016-03-13 09:30:47 -04:00
|
|
|
});
|
2019-04-27 09:18:00 -04:00
|
|
|
|
2022-07-16 14:54:25 -04:00
|
|
|
// Prevent visibility of non-owned draft pages
|
|
|
|
$q->whereExists(function (QueryBuilder $query) use ($fullPageIdColumn) {
|
|
|
|
$query->select('id')->from('pages')
|
|
|
|
->whereColumn('pages.id', '=', $fullPageIdColumn)
|
|
|
|
->where(function (QueryBuilder $query) {
|
|
|
|
$query->where('pages.draft', '=', false)
|
|
|
|
->orWhere('pages.owned_by', '=', $this->currentUser()->id);
|
|
|
|
});
|
|
|
|
});
|
2021-11-29 19:06:17 -05:00
|
|
|
|
2016-09-17 13:22:04 -04:00
|
|
|
return $q;
|
|
|
|
}
|
|
|
|
|
2021-03-14 16:32:33 -04:00
|
|
|
/**
|
|
|
|
* Add the query for checking the given user id has permission
|
|
|
|
* within the join_permissions table.
|
2021-06-26 11:23:15 -04:00
|
|
|
*
|
2021-03-14 16:32:33 -04:00
|
|
|
* @param QueryBuilder|Builder $query
|
|
|
|
*/
|
|
|
|
protected function addJointHasPermissionCheck($query, int $userIdToCheck)
|
|
|
|
{
|
2021-11-29 19:06:17 -05:00
|
|
|
$query->where('joint_permissions.has_permission', '=', true)->orWhere(function ($query) use ($userIdToCheck) {
|
|
|
|
$query->where('joint_permissions.has_permission_own', '=', true)
|
|
|
|
->where('joint_permissions.owned_by', '=', $userIdToCheck);
|
2021-03-14 16:32:33 -04:00
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2016-09-17 13:22:04 -04:00
|
|
|
/**
|
2021-06-26 11:23:15 -04:00
|
|
|
* Get the current user.
|
2016-09-17 13:22:04 -04:00
|
|
|
*/
|
2022-07-16 08:17:08 -04:00
|
|
|
protected function currentUser(): User
|
2016-09-17 13:22:04 -04:00
|
|
|
{
|
2022-07-16 08:17:08 -04:00
|
|
|
return user();
|
2016-09-17 13:22:04 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
2022-07-16 08:17:08 -04:00
|
|
|
* Get the roles for the current logged-in user.
|
|
|
|
*
|
|
|
|
* @return int[]
|
2016-09-17 13:22:04 -04:00
|
|
|
*/
|
2022-07-16 08:17:08 -04:00
|
|
|
protected function getCurrentUserRoleIds(): array
|
2016-09-17 13:22:04 -04:00
|
|
|
{
|
2022-07-16 08:17:08 -04:00
|
|
|
if (auth()->guest()) {
|
|
|
|
return [Role::getSystemRole('public')->id];
|
|
|
|
}
|
|
|
|
|
|
|
|
return $this->currentUser()->roles->pluck('id')->values()->all();
|
2016-03-13 09:30:47 -04:00
|
|
|
}
|
2022-10-08 08:52:59 -04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Ensure the given action is a valid and expected entity action.
|
|
|
|
* Throws an exception if invalid otherwise does nothing.
|
|
|
|
* @throws InvalidArgumentException
|
|
|
|
*/
|
|
|
|
protected function ensureValidEntityAction(string $action): void
|
|
|
|
{
|
|
|
|
if (!in_array($action, EntityPermission::PERMISSIONS)) {
|
|
|
|
throw new InvalidArgumentException('Action should be a simple entity permission action, not a role permission');
|
|
|
|
}
|
|
|
|
}
|
2018-01-28 11:58:52 -05:00
|
|
|
}
|