我正在寻找一种解决方案,允许首次在Firebase中创建数据,然后限制对该数据所有者(或管理员)的访问。从本质上讲,我为业务创建了一个注册流程,该流程在Firebase中创建用户以及为该业务创建关联用户。不幸的是,根据我当前的架构和安全规则,我收到permission_denied
错误。这是我当前的架构,由EmberFire使用hasMany< - >生成。属于business
和employee
模型之间的关系:
+ businesses
+ business_id (generated by EmberFire)
- name
+ employees
- employee_id
- employee_id
+ employees
+ employee_id (generated by Firebase's auth system)
- first name
- last name
- business_id
- role (ex: 99 for admin)
这是我的安全规则:
{
"rules": {
"businesses": {
// allows only administrators of the business to read and write business data
"$business_id": {
".read": "root.child('employees/' + auth.uid + '/business').val() === $business_id && root.child('employees/' + auth.uid + '/role').val() === 99",
".write": "root.child('employees/' + auth.uid + '/business').val() === $business_id && root.child('employees/' + auth.uid + '/role').val() === 99"
}
},
"employees": {
// only allow employees to read/write their own data or the admin of the business they belong to
"$employee_id": {
".read": "auth.uid === $employee_id || (root.child('employees/' + auth.uid + '/role').val() === 99 && root.child('businesses/' + (root.child('employees/' + auth.uid + '/business').val()) + '/employees/' + $employee_id).exists())",
".write": "auth.uid === $employee_id || (root.child('employees/' + auth.uid + '/role').val() === 99 && root.child('businesses/' + (root.child('employees/' + auth.uid + '/business').val()) + '/employees/' + $employee_id).exists())"
}
}
}
}
任何人都可以推荐一组更新的安全规则/架构,这些规则/架构允许在注册期间最初创建数据,然后只能由该数据的所有者/管理员访问吗?
注意:我目前正在运行Firebase 2.2.4和EmberFire 1.4.4。
提前致谢, 詹姆斯
更新
以下是注册过程中使用的代码:
// first, create the user account to be the admin of the business
_this.firebase.createUser({
email: _this.get('email'),
password: _this.get('password')
}, function(error, userData) {
if (error) {
flashMessages.warning(error);
} else {
// authenticate the user and log them in
_this.get('session').authenticate('authenticator:firebase', {
'email': _this.get('email'),
'password': _this.get('password')
}).then(function() {
// create the business record
var business = _this.store.createRecord('business', {
name: _this.get('businessName')
});
// create the employee record and associate the firebase uid
var employee = _this.store.createRecord('employee', {
id: userData.uid,
firstName: _this.get('firstName'),
lastName: _this.get('lastName'),
});
// add the employee<->business relationship
business.get('employees').then(function(employees) {
employees.addObject(employee);
});
// save the records to Firebase
employee.save().then(function() {
business.save();
});
}).catch(function(error) {
flashMessages.warning(error);
});
}
});
此外,这里是数据的快照,说明了我所描述的内容:
答案 0 :(得分:3)
您的安全规则需要role = 99
,但您永远不会设置它。
以下似乎可以解决您的问题:
// create the employee record and associate the firebase uid
var employee = _this.store.createRecord('employee', {
id: userData.uid,
firstName: _this.get('firstName'),
lastName: _this.get('lastName'),
role: 99
});
回答更大的问题,是的,写作是在多个部分完成的。 hasMany
关系将单独保存,以免完全覆盖其他客户端上可能发生的任何更改。更具体地说,每个hasMany
链接在单独的写入中添加或删除,因此可能有2个或更多写入。
对于您的代码,首先保存了business/<id>/employees<employee_id>
链接,这意味着在第二次传递时 - 在编写主business/<id>
哈希时 - 规则的!data.exists()
部分失败。这很好,因为员工已创建并链接到业务,但role = 99
检查也失败了。