How can I restrict in firestore that only the user with a certain email can write to the database and only authenticated users can read? At the moment I have the rules like this, so that everyone can access the database:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if (true);
}
}
}
Related
In Firestore, I have a collection "form1"
In my client app, when I create a document in a collection that doesn't exist, say "form2"
db.collection("form2").addDocument(data: data)...
I see from Firestore console, "form2" was created automatically to hold the new document. I hope addDocument() would return error in this case.
How to do it with Security rules? or with other method?
Here is my current Secuirty rules:
rules_version = '12';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} { // only logged-in user can access
allow read, write: if request.auth.uid != null;
}
}
}
Why can't following work? (insufficient permission even if the root collection exist)
service cloud.firestore {
match /databases/{database}/documents {
match /{collection} {
allow read, write: if false;
}
match /{collection}/{document} {
allow read, write: if exists(/databases/$(database)/documents/$(collection));
}
}
}
You can disallow writing to all documents as default and then write rules to allow the only ones you decide:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;// This disallow write and read for all documents
}
match /admin_/** {
allow read, write: if request.auth.token.admin == true;
}
}
}
This will not allow writes to any collection or document except to admin
I am collecting my admin users uid's as documents in "admins" collection. I want to allow users to read if they have their uid's in that collection as a document.
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /admins/{document=**} {
allow write; // Everyone should be able to write
allow read: if request.auth.uid == ; // Only read if /admins/{youruid}
}
}
}
You can use exists() to check if a document exists. Try refactoring your rules as shown below:
match /admins/{document=**} {
allow read: if exists(/databases/$(database)/documents/admins/$(request.auth.uid));
// Only read if /admins/{youruid}
}
You can read more about exists() in the documentation.
Firebase keep telling me
We've detected the following issue(s) with your security rules:
any user can read your entire database
I have changed the rules but that rules doesn’t work in my app because all user can read from db and only authenticate user can write to db.
Firebase says that write and read should be performed until we login. But in my case every user can read and only login user can write.
Any ideas how to solve this ? or I'm I doing it wrong ?
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read;
allow write: if request.auth != null;
}
}
}
Can you set your read to false explicitly?
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read: if false;
allow write: if request.auth != null;
}
}
}
That should do it. Let me know if it persists.
The root cause is that even though you are allowing only authenticated users to read or write but they have access to the whole database as mentioned in the Google Cloud Firestore Documentation. That also means any authenticated user can write anything in your database.
If you database has a separate document for each user, I would suggest using the following rules which allows users to write/read their own data only.
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /users/{userId} {
allow read, write: if request.auth.uid === userId;
}
}
}
I'm using Firebase Firestore to collect user information in my current Android app. But I didn't quite get the Firestore rules. I write the rule like this:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if request.auth != null;
}
}
}
But I want to user access the database even there's no current user because when the user sign up I'm checking the database if there's a current phone number in the database if not user can sign up this phone number. Thank you
// Allow read/write access to all users under any conditions
// Warning: **NEVER** use this rule set in production; it allows
// anyone to overwrite your entire database.
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if true;
}
}
}
Not recommended: Read and write access to all users.
Have a look at Fix insecure rules documentation from firebase for more details.
My database is built in a way that each User has his own document in users collection, that document's id is equal to the users id, and inside the document there is a collection of Tasks for each user.
when i use:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if request.auth.uid != null;
}
}
}
Everything works and a logged in user (i only log-in users with google provider) is able to read and write to the database, in his own collection of tasks (haven't tried writing to another user's tasks, but i assume it is possible in the given situation). But i want to restrict the users to only be able to write and read their own tasks, i tried the following:
service cloud.firestore {
match /databases/{database}/documents {
match /users/{user} {
allow read, write: if request.auth.uid == resource.id;
}
}
}
But it does not work.
a scheme of my database:
database
any ideas?