Reputation: 281
I'm looking for some advice or a possible solution with tightening up my firebase rules.
This is my user tree in Firebase:
users
|_male
|_uid
|_female
|_uid
The UID will be an epoch timestamp when the account is created which will be a signed integer.
These are the firebase rules which basically ensures the user has logged in and authenticated with Facebook before they can read or write to users:
"users": {
"male":{
".indexOn": ["uid"]
},
"female":{
".indexOn": ["uid"]
},
".read": "auth != null && auth.provider === 'facebook'",
".write": "auth != null && auth.provider === 'facebook'"
},
I only want users to read/write to their tree, for example:
users->male->uid->1233254...
I'm afraid with my rules above, they could potentially read and write from/to another users tree.
It would be great if I could compare the app UID with the Facebook UID. I do capture this detail in another tree on the database e.g:
user_fbuid
|_fbuid
|_facebook:a1244dxs
|_uid
I do have better rules here that check against auth.uid
:
"user_fbuid": {
"fbuid":{
"$fbuid": {
".indexOn": ["fbuid"],
".read": "$fbuid === auth.uid && auth.provider === 'facebook'",
".write": "$fbuid === auth.uid && auth.provider === 'facebook'"
}
},
},
If anyone has any ideas, I'd love to hear. Thanks
Upvotes: 2
Views: 422
Reputation: 281
I ended up using the facebook id attribute as my own uid and the rules below:
"$uid": {
// only the user can read and write to their tree
".read": "auth != null && auth.provider === 'facebook' && auth.token.firebase.identities['facebook.com'][0] === $uid",
".write": "auth != null && auth.provider === 'facebook' && auth.token.firebase.identities['facebook.com'][0] === $uid"
},
Upvotes: 3