firebase rule for admin - firebase

I wrote this but its not working:
isAdmin(): not working
isLogin(): working well
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write : if false;
}
function isLogin() {
return request.auth != null
}
function isAdmin() {
return isLogin() &&
get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isAdmin == true
}
// allow for only auth & is admin
match /users/{userId} {
allow read, write : if isAdmin();
}
}
Thanks in advance

You need to pass the database variable as an argument in your function like this:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write : if false;
}
function isLogin() {
return request.auth != null
}
function isAdmin(database) {
return isLogin() &&
get(/databases/$(database)/documents/users/$(request.auth.uid)).data.isAdmin == true
}
// allow for only auth & is admin
match /users/{userId} {
allow read, write : if isAdmin(database);
}
}
}

Related

How do I access the document ID in firestore rules

I am seemingly unable to access the resource.id value when trying queries using these rules. when I manually enter the schools id (the commented out line) the data returns fine. I only have 1 school and the doc ID definitely matches the string. but when I ask to match to the resource.id value, my rules return an 'insufficient permissions' error.
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
//functions
function signedIn() {
return request.auth.uid != null;
}
function returnUID(){
return request.auth.uid;
}
function getUserData() {
return get(/databases/$(database)/documents/All%20Users/$(request.auth.uid)).data;
}
match /All%20Users/{userID} {
allow read,write: if
signedIn() && returnUID() == userID;
}
match /All%20Schools/{schoolID}{
allow read, write: if
// signedIn() && getUserData().school == "f7asMxUvTs3uFhE08AJr"
signedIn() && getUserData().school == resource.id
}
}
}
my structure is like this
All Schools / school (document) / Classrooms (subcollection)
All Users / User (document) (each user doc has a classroomID associated to it)
as a point of reference this is a query that is successful
var docRef = db.collection("All Users").doc(uid).get()
and the one that is failing
db.collection("All Schools/" + properties.schoolid + "/Classrooms").onSnapshot()
[update]
the working set of rules!
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
//functions
function signedIn() {
return request.auth.uid != null;
}
function returnUID(){
return request.auth.uid;
}
function getUserData() {
return get(/databases/$(database)/documents/All%20Users/$(request.auth.uid)).data;
}
match /All%20Users/{userID} {
allow read,write: if
signedIn() && returnUID() == userID;
}
match /All%20Schools/{schoolID}{
allow read, write: if schoolID == 'f7asMxUvTs3uFhE08AJr'
}
match /All%20Schools/{schoolID}/Classrooms/{classId} {
allow read, write: if getUserData().school == schoolID;
}
match /All%20Schools/{schoolID}/Student%20List/{student} {
allow read, write: if getUserData().school == schoolID;
}
match /All%20Schools/{schoolID}/Staff/{staff} {
allow read, write: if getUserData().school == schoolID;
}
}
}
The following rules will be effective on documents of 'All Schools' collection only and not documents of 'Classrooms' sub-collection:
match /All%20Schools/{schoolID} {
// ...
}
That's why db.collection("All Users").doc(uid).get() works and fetching 'Classrooms' collection fail since you do not have any rules specified for it. Although you had a recursive wildcard earlier (before editing the question), resource object contains data of those documents being matched in 'Classrooms' sub-collection and hence getUserData().school == resource.id failed too.
That being said, try specifying rules for 'Classrooms' sub-collection as well:
match /All%20Schools/{schoolID}/Classrooms/{classId} {
allow read, write: if getUserData().school == schoolID;
}
match /All%20Schools/{schoolID}/Classrooms/{classID} {
// schoolID is the documentId
allow read, write: if signedIn() && getUserData().school == schoolID
}
If this was my code, I would not use spaces in my collection or field names. Rather I will use snake_case or camelCase.
So instead of All Schools, I will use either all_schools or allSchools.

"Simulated read denied" OR "FirebaseError: Missing or insufficient permissions"

I am trying to set-up Firestore permission rules. This is my data as well as my rules and my authentication payload.
service cloud.firestore {
match /databases/{database}/documents {
match /questions/{questionId} {
allow create: if isAdmin() && emailVerified();
allow read: if isAdmin() && emailVerified();
allow update: if isAdmin() && emailVerified();
allow delete: if isAdmin() && emailVerified();
}
match /users/{userId} {
allow get: if isOwner(userId) && emailVerified();
}
}
function isAdmin2() {
return request.auth.uid == 'CoKtrTQEA8P18v0jtcDUt766rVl1';
}
function isAdmin() {
return getUserData().roles.keys().hasAny(['admin']);
}
function getUserData() {
return get(/databases/$(database)/documents/users/$(request.auth.uid)).data;
}
function emailVerified() {
return request.auth.token.email_verified;
}
function isOwner(userId) {
return request.auth.uid == userId;
}
function isSignedIn() {
return request.auth != null;
}
}
{
"uid": "CoKtrTQEA8P18v0jtcDUt766rVl1",
"token": {
"sub": "CoKtrTQEA8P18v0jtcDUt766rVl1",
"aud": "flying-pigs",
"email": "myemail#example.com",
"email_verified": true,
"phone_number": "",
"name": "",
"firebase": {
"sign_in_provider": "google.com"
}
}
}
When trying to read the questions list, isAdmin() will return false every time while isAdmin2() will work just fine, but it is hardcoded.
What am I missing?
Once I had the same problem, I end up doing something like this:
function isAdmin(request) {
return ['admin'] in getUserData(request).roles
}
Make sure your functions receive request as parameter, your isAdmin and getUserData are not currently receiving it. how this helps

Setting permissions for document and all its subcollections

I am getting the error:
FirebaseError: Missing or insufficient permissions when trying to view a document in a subcollection. I'm trying to get at the documents 'character' in subcollection 'settings'.
systemsCol()
.doc(localStorage.getItem("systemId"))
.collection('settings')
.doc('character')
How can i set all items and subdocuments for each 'system' document?
Here are my permissions
service cloud.firestore {
function authed (auth, data){
return auth.uid == data.owner.uid || auth.token.email in data.collaborators;
}
match /databases/{database}/documents {
match /systems {
allow read, write:
if request.auth.uid != null;
match /{systemId} {
allow list, create:
if request.auth.uid != null;
allow get, update, delete:
if authed(request.auth, resource.data);
}
match /{systemId}/{document=**} {
allow read, write:
if authed(request.auth, resource.data);
}
}
}
}
Also tried
service cloud.firestore {
function authed (auth, data){
return auth.uid == data.owner.uid || auth.token.email in data.collaborators;
}
match /databases/{database}/documents {
match /systems {
allow read, write:
if request.auth.uid != null;
match /{systemId} {
allow list, create:
if request.auth.uid != null;
allow get, update, delete:
if authed(request.auth, resource.data);
match /{document=**} {
allow read, write:
if authed(request.auth, get(/systems/{systemId}).data);
}
}
}
}
}

Firebase Security Rules - using get in a function

I am trying to setup security rules for my firestore instance, I have three basic requirements:
User must be authenticated to read
Owners of documents are the only
ones who can write to them (use a field called owner on document to
verify)
Any admin user can also write to any document
The code below achieves all of this (excluded the check for ownership) but the get function to determine the users role only works when specified on the same row as the if condition. In the code below the update and delete works for the admin but not the create.
Can anyone please tell why the isAdmin() function does not evaluate to the same result?
service cloud.firestore {
match /databases/{database}/documents {
// Only 'owners' of data can make changes to data
match /posts/{post} {
allow read: if isAuthenticated();
allow create: if isAuthenticated() && isAdmin();
allow update, delete: if isAuthenticated() && get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role == 1;
}
}
/// FUNCTIONS ///
function isAuthenticated() {
return request.auth.uid != null;
}
// function requestIsOwner() {
// return request.resource.data.owner == request.auth.uid;
// }
// function resourceIsOwner() {
// return resource.data.owner == request.auth.uid;
// }
function isAdmin() {
return get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role == 1
}
}
You need to pass the database variable as argument in your function like this:
service cloud.firestore {
match /databases/{database}/documents {
// Only 'owners' of data can make changes to data
match /posts/{post} {
allow read: if isAuthenticated();
allow create: if isAuthenticated() && isAdmin(database);
allow update, delete: if isAuthenticated() && get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role == 1;
}
}
/// FUNCTIONS ///
function isAuthenticated() {
return request.auth.uid != null;
}
// function requestIsOwner() {
// return request.resource.data.owner == request.auth.uid;
// }
// function resourceIsOwner() {
// return resource.data.owner == request.auth.uid;
// }
function isAdmin(database) {
return get(/databases/$(database)/documents/users/$(request.auth.uid)).data.role == 1
}
}

Error: Missing or insufficient permissions

I got a firestore like this:
:stores
|
$Store
:orders
|
$Order
:items
I want to read orders from my database using a user having an workerUid same as the request.auth.uid but geht the Error: Missing or insufficient permissions.
The important part of my firebase rules:
service cloud.firestore {
match /databases/{database}/documents {
//Matches any document in the stores collection
match /stores/{store} {
function isStoreAdmin(uid) {
return get(/databases/stores/$(store)).data.adminUid == uid;
}
function isStoreWorker(uid) {
return get(/databases/stores/$(store)).data.workerUid == uid;
}
allow read: if request.auth.uid != null;
allow write: if request.auth.uid == resource.data.adminUid;
//Matches any document in the orders collection
match /orders/{document=**} {
allow read, write: if isStoreAdmin(request.auth.uid) || isStoreWorker(request.auth.uid);
}
}
}
}
Funny thing is, that it works if I do this:
match /orders/{document=**} {
allow read, write: if isStoreWorker(request.auth.uid);
}
or this:
match /orders/{document=**} {
allow read, write: if request.aut.uid != null;
}
When deploying the rules I get no syntax error so I really can't understand why this is not working. Does anyone have any ideas? Thank you so much!
Edit:
function readAllDocuments(collectionReference, callback,finishedCallback){
collectionReference.get().then(function(querySnapshot) {
querySnapshot.forEach(function(doc) {
callback(doc.id,doc.data());
});
finishedCallback();
});
}
const storeDocument = getRootCollection(STORES_COLLECTION_ID).doc(storeId);
const orderCollection = storeDocument.collection(STOREORDERS_COLLECTION_ID);
orders=new Map();
readAllDocuments(orderCollection, function (id, data) {
orders.set(id,data);
},function(){
finishedLoading();
});
The documentation for use of get() in a security rule states:
...the path provided must begin with /databases/$(database)/documents
Make these changes to the get() paths:
function isStoreAdmin(uid) {
return get(/databases/$(database)/documents/stores/$(store)).data.adminUid == uid;
}
function isStoreWorker(uid) {
return get(/databases/$(database)/documents/stores/$(store)).data.workerUid == uid;
}

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