loopback/common/models/scope.js

55 lines
1.7 KiB
JavaScript

// Copyright IBM Corp. 2014,2016. All Rights Reserved.
// Node module: loopback
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
'use strict';
var assert = require('assert');
var loopback = require('../../lib/loopback');
/**
* Resource owner grants/delegates permissions to client applications
*
* For a protected resource, does the client application have the authorization
* from the resource owner (user or system)?
*
* Scope has many resource access entries
*
* @class Scope
*/
module.exports = function(Scope) {
Scope.resolveRelatedModels = function() {
if (!this.aclModel) {
var reg = this.registry;
this.aclModel = reg.getModelByType(loopback.ACL);
}
};
/**
* Check if the given scope is allowed to access the model/property
* @param {String} scope The scope name
* @param {String} model The model name
* @param {String} property The property/method/relation name
* @param {String} accessType The access type
* @callback {Function} callback
* @param {String|Error} err The error object
* @param {AccessRequest} result The access permission
*/
Scope.checkPermission = function(scope, model, property, accessType, callback) {
this.resolveRelatedModels();
var aclModel = this.aclModel;
assert(aclModel,
'ACL model must be defined before Scope.checkPermission is called');
this.findOne({where: {name: scope}}, function(err, scope) {
if (err) {
if (callback) callback(err);
} else {
aclModel.checkPermission(
aclModel.SCOPE, scope.id, model, property, accessType, callback);
}
});
};
};