I have a really simple firestore db that looks like the image above.
I want to write a security rule so that only authenticated users can get in, but whatever I write, I always get permission denied.
I have tried:
rules_version = '2';
service cloud.firestore {
match /users/{user} {
allow read, write: if request.auth.uid == user
match / {docs = **} {
allow read, write: if request.auth.uid == user
}
}
}
I also tried:
rules_version = '2';
service cloud.firestore {
match /users/{user} {
allow read, write: if request.auth.uid == user
match / {docs = **} {
allow read, write: if request.auth.uid == user
}
}
}
I also tried:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /users/{userId}/{documents=**} {
allow read, write: if isOwner(userId);
}
}
function isOwner(userId) {
return request.auth.uid == userId;
}
}
This does not work:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /sessions/{sessionID} {
allow read, write: if request.auth != null;
}
}
}
Neither does this:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /sessions/{sessionsID} {
allow read, write: if request.auth != null;
}
}
}
I tried to compare my rules with your database structure.
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /sessions/{sessionID=**} {
allow read, write: if request.auth.uid != null;
}
}
Now this should allow only registered users to gain access.
Related
I am getting the following error when trying to upload an image in my firebase storage.
Firebase Storage: User does not have permission to access 'images/istockphoto-1071305262-612x612-removebg-preview.png'. (storage/unauthorized)
Below are my db rules:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if
request.time < timestamp.date(2022, 2, 9);
}
}
}
Below are the storage rules:
rules_version = '2';
service firebase.storage {
match /b/{bucket}/o {
match /{allPaths=**} {
allow read, write: if request.auth != null;
}
}
}
I mean I want to check to be sure the document id of the request is the same as the document id in the database.
I tried this but it doesn't work:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /users/{userId} {
allow read: if request.resource.id == userId;
}
}
}
Also tried this and it also didn't work:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /users/{userId} {
allow read: if request.resource.id == resource.id;
}
}
}
I've searched online for hours and every single post is about using authentication uid.
if you want to make sure the uid in request matches name of the user document, then use this:
match /users/{userId} {
allow read, update, delete: if request.auth != null && request.auth.uid == userId;
}
and if you want to allow new users to be created add this too:
allow create: if request.auth != null;
more details : https://firebase.google.com/docs/firestore/security/rules-conditions
i have the following sample app here: Github repo
It uses vuefire in ChatList.vue
// vuefire firestore component manages the real-time stream to that reactive data property.
firestore() {
return {
chats: db.collection('chats').where('members', 'array-contains', this.uid)
}
},
I now wrote security rules to secure the data, but can't seem to get the combination of vuefire and security rules to work:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
// THIS IS THE PART I'D LIKE TO REMOVE
match /chats/{chatId=**} {
allow read: if request.auth.uid != null;
}
// THIS WORKS AS INTENDED, AND I'D LIKE TO INCLUDE "READ"
match /chats/{chatId}/{documents=**} {
allow write: if chatRoomPermission(chatId)
}
function chatRoomPermission(chatId) {
return request.auth.uid in get(/databases/$(database)/documents/chats/$(chatId)).data.members;
}
}
}
So the goal is: make the individual chats only readable and writable to users that are in the members array in firestore. (Currently i achieved this partially, since all chats are readable to anyone, but only writable to users in the members array.)
Do i have to rewrite the vuefire component so i can have the following security rule? (It gives an error message: listing of chats not possible due to missing permissions)
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
match /chats/{chatId}/{documents=**} {
allow read, write: if chatRoomPermission(chatId)
}
function chatRoomPermission(chatId) {
return request.auth.uid in get(/databases/$(database)/documents/chats/$(chatId)).data.members;
}
}
}
For completeness, the working solution is (credits to Renaud Tarnec):
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
match /chats/{chatId=**} {
allow read: if request.auth.uid in resource.data.members;
}
match /chats/{chatId}/{documents=**} {
allow read, write: if chatRoomPermission(chatId)
}
function chatRoomPermission(chatId) {
return request.auth.uid in get(/databases/$(database)/documents/chats/$(chatId)).data.members;
}
}
}
Since you want to check, in your Security Rules, if a given value (the user uid in this case) is contained in a field of type Array in your document, you can use the in operator of the List type.
So, the following should do the trick:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
// THIS IS THE PART I'D LIKE TO REMOVE
match /chats/{chatId=**} {
allow read: if request.auth.uid in resource.data.members;
}
// ....
}
}
i have set my firebase cloud database rule to default
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
}
}
but while my flutter app tries to interact with it, this error occurs
Error performing get, PERMISSION_DENIED: Missing or insufficient permissions., null
This condition:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if false;
}
}
}
means you are disallowing both read and write from and to firestore, you can change the rules to the following:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read : if true;
allow write: if false;
}
}
}
Which will allow you to read but not write to the database, or you can use the following:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if request.time < timestamp.date(2020, 9, 20);
}
}
}
Use the above rules just for testing, check here:
https://firebase.google.com/docs/firestore/security/rules-structure
I have the following firestore structure, basically 3 collections
publicdata
protecteddata1
protecteddata2
I want to have protecteddata1 and protecteddata 2, and really the entire firestore database as authenticated users only.
But i want the public to have readonly access to 'publicdata' collection..
The following is my attempt but it doesn't work
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read;
allow write: if (request.auth.uid != null);
}
match /publicdata {
allow read;
}
}
}
You can use the following functions I created to do this
function isUserAuthenticated() {
return request.auth.uid != null;
}
You can then use it like this:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if isUserAuthenticated();
}
match /publicdata/{itemId} {
allow read : if true;
allow create : if isUserAuthenticated();
allow update: if isUserAuthenticated();
allow delete: if isUserAuthenticated();
}
/* Functions */
function isUserAuthenticated() {
return request.auth.uid != null;
}
}
}
As others have explained, if you have multiple matches for the same document they are OR'ed together, so you can't implement an exception with that.
What you can do though is capture the collection name in a variable, and then implement the exception in a single match:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{collection}/{document=**} {
allow read: if collection != 'publicdata';
allow write: if (request.auth.uid != null);
}
}
}
So here we allow reads from all collections except publicdata.
Because here is says:
Overlapping match statements
It's possible for a document to match more than one match statement. In the case where multiple allow
expressions match a request, the access is allowed if any of the
conditions is true: ...
You can use this:
rules_version = '2';
service cloud.firestore {
// Check if the request is authenticated
function isAuthenticated() {
return request.auth != null;
}
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if isAuthenticated();
}
match /publicdata/{document=**} {
allow read: if true;
}
}
}