Where does the service element get put in a database.rules.json file used by the firebase client, which is:
{
"rules": {
".read": "auth != null",
".write": "auth != null",
}
}
I'm assuming the above applies to both Cloud Firestore and real time database?
I have a Cloud Firestore rule I'd like to keep in the json file so that it can be source controlled and deployed automatically. Here's the rule as shown in firestore:
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if true;
}
match /photos {
allow read, write: if request.auth != null;
}
match /users/{user} {
allow read: if request.auth != null;
allow write: if request.auth.uid == user.id)
}
}
}
How do I update my database.rules.json file to start to keep it in sync? Do I need to add a cloud.firestore element under rules? Where does it go? Are firestore rules kept in a completely separate file?
I think you have to put these rules in a separate file named firestore.rules.
The first set of rules (i.e. the ones in database.rules.json) in only for the Real Time Database.
Firebase Realtime Database security rules are completely different than Cloud Firestore security rules. You can't have one file for both, and there is no automated process to keep them in sync, whatever that means for you. When you run firebase init, tell it that you want to init both Realtime Database and Firestore, and it will suggest names of different files for the rules.
Related
My database has due to expire in two days because of rules security. I changed the default test rules yesterday, it is possible that they have not yet been noted, but to make sure they are sufficient to keep my database from expiring, I am asking you about it. Are these rules ok? Is it all to prevent the database from expiring?
Firestore database -> Cloud Firestore rules:
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if
request.auth.uid != null;
}
}
}
Realtime Database rules:
{
"rules": {
"Users": {
"$uid": {
".read": "$uid === auth.uid && auth != null",
".write": "$uid === auth.uid && auth != null",
}
}
}
}
The rules you show don't have an expiration date, so data access won't change based on the date anymore. Whether they're "OK" is a different matter though.
The Realtime Database rules you show give each user access to only their own data, which is a common practice and shown in the Firebase documentation on content-owner only access.
The rules you're showing for Firestore though, give access to anyone who successfully called the Firebase API to sign in, which is a much less strict requirement. If you use Firestore, I recommend also tightening the security there. And if you don't use Firestore, I recommend turning all access off with allow read, write: if false;
I'm trying to use the most popular/common firebase rule of
{ "rules": { ".read": true, ".write": true } }
Every time I put it in, I get the error of
"mismatched input '{' expecting {'function', 'import', 'service', 'rules_version'}"
My current rule is
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if true;
}
}
}
What you're trying to enter are security rules for the Realtime Database, but you're trying to enter them for Cloud Firestore, which is another database. While both databases are part of Firebase, they're completely separate, and the security rules for one don't apply to the other.
To fix the error, you will have to set the rules for Cloud Firestore, as shown here and here.
I recently received an email from firebase telling me that the rules of my database (Firestore) are insecure so I changed them to the following:
rules_version = '2';
service cloud.firestore {
match / databases / {database} / documents {
match / {document = **} {
allow read: if true;
allow write: if request.auth.uid != null;
}
}
}
Before I had these rules:
allow read, write: if true;
After making the change, the emails keep coming back and I don't know what else to do.
I already tried several of the following options given in this link but none of them works for what I need.
https://firebase.google.com/docs/rules/insecure-rules#firestore
I need authenified users to be able to read and create content. So use the rules that I put above.
I saw that in the email they send me it says that people can modify my database, is this referring to from the app, or does it mean that they can hack me or something?
Because the end of my app is that users can create content.
But I don't want someone to hack into my database and delete everything, is that possible?
Thanks
The emails are because the rules aren't really stringent. You should probably be using the following rule, that:
Allows unauthenticate users to read data
Allows authenticated users to create entries
Allows to update & delete entries that are only owned by themselves and not of others.
service cloud.firestore {
match /databases/{database}/documents {
// Allow public read access, but only content owners can write
match /some_collection/{document} {
allow read: if true
allow create: if request.auth.uid == request.resource.data.author_uid;
allow update, delete: if request.auth.uid == resource.data.author_uid;
}
}
}
Read this article for better understanding. You can also check when firestore flags rules as insecure over here. More importantly, this is the point to be emphasized.
Remember that Firebase allows clients direct access to your data, and
Firebase Security Rules are the only safeguard blocking access for
malicious users. Defining rules separately from product logic has a
number of advantages: clients aren't responsible for enforcing
security, buggy implementations will not compromise your data, and
most importantly, you're not relying on an intermediary server to
protect data from the world.
Sample rules:
service cloud.firestore {
match /databases/{database}/documents {
match /users/{userDoc} {
allow read: if true
allow create: if request.auth.uid == request.resource.data.id;
allow update, delete: if request.auth.uid == resource.data.id;
}
match /posts/{postDoc} {
allow read: if true
allow create: if request.auth.uid != null;
allow update, delete: if request.auth.uid == resource.data.user_id;
}
match /comments/{commentDoc} {
allow read: if true
allow create: if request.auth.uid != null;
allow update, delete: if request.auth.uid == resource.data.user_id;
}
}
}
This case is mentioned in the documentation. Any authenticated user can write to your database and that also involves deleting data. You are using a recursive wildcard which gives them access to complete database.
Instead try rules that allow users to write their own documents only or something similar.
rules_version = '2';
service cloud.firestore {
match / databases / {database} / documents {
match /collectionName/{docId} {
allow read: if true;
allow write: if request.auth != null && request.auth.uid == docId;
}
}
}
Above example will allow users to edit documents where document ID is equal to their UID only.
If you wish to allow selected users to write (such as admin) then you can add a field namely admin and set it to true in user's document in users collection. Then you can read the document data as shown:
match /collection/{document} {
allow write: if get(/databases/$(database)/documents/users/$(request.auth.uid)).data.admin == true;
allow read: true;
}
I have 2 apps (admin and clients) using the same firebase database, first configure the admin app, then from the "project configuration" create the clients app in "Add another app".
service cloud.firestore {
match /databases/{database}/documents {
match /clients/{document=**} {
allow read, write: if true;
}
match /payments/{document=**} {
allow read, write: if true;
}
}
}
Without setting firebase rules (like the ones indicated above), the 2 apps work fine, I can read, edit, create and authenticate users. The problem happens when I start to set basic rules:
service cloud.firestore {
match /databases/{database}/documents {
match /clients/{document=**} {
allow read, write: if request.auth != null;
}
match /payments/{document=**} {
allow read, write: if request.auth != null;
}
}
}
with these rules it works fine in the admin app, but in the clients app it shows an error: ERROR FirebaseError: Missing or insufficient permissions; and does not allow read or write to the database.
It seems you are using the syntax for Firestore Security rules in realtime database. I am assuming you want to run 2 apps on a single database and want to have different security rules for both. You need to separate the apps data in their own node to do so. Then you can try the following rules:
{
"rules": {
"app1": {
".read": "auth != null",
".write": "auth != null"
},
"app2": {
".read": true,
".write": true
}
}
}
Now data of both app1 and app2 will have separate security rules. Just make sure the data is in relevant node.
Hi I have the Firebase project, and when I create the databases, I create some rules for testing.
Now, they expire, and they close my project.
It is my first time working with Firebase projects, and I have no experience. I show you how I have defined the rules for both Cloud Firestore and the Realtime Database.
The project is an application in which users can register and leave their comments.
How should I set the rules for my databases to be secure?
How should I write my rules code?
I was absent from my project for a few days and they wrote to me from Google, which closes my project in two days. I have looked for information, but I do not know how to create the rules so that they are correct and my project also works
I EDIT MY QUESTION to add details
In my application I only want registered users to be able to write comments.
The alert that Firebase shows me is the following:
"Its security rules are defined as public, so anyone can steal, modify or delete data from its database."
The databases are empty, so there are no records yet.
Can you help me? Firebase will close my project if I don't write the rules right, the rules shouldn't be public.
I read the documentation that Firebase offers, but I don't really understand how to create my rules.
They show something like this, for authenticated users:
// Allow read/write access on all documents to any user signed in to the application
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if request.auth != null;
}
}
}
And on the other hand they show these rules:
**// 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;
}
}
}**
I don't know which one I should use exactly, and how I should write them, so that in my React Native app users can leave feedback.
Can you help me ?
I show the code of the rules of my databases
//REALTIME DATABASE
{
"rules": {
".read": true,
".write": true
}
}
//CLOUD FIRESTORE
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
// This rule allows anyone with your database reference to view, edit,
// and delete all data in your Firestore database. It is useful for getting
// started, but it is configured to expire after 30 days because it
// leaves your app open to attackers. At that time, all client
// requests to your Firestore database will be denied.
//
// Make sure to write security rules for your app before that time, or else
// all client requests to your Firestore database will be denied until you Update
// your rules
match /{document=**} {
allow read, write: if request.time < timestamp.date(2020, 9, 2);
}
}
}
You can use the following rule where only authenticated users can write and read to the database.
For Cloud Firestore:
// Allow read/write access on all documents to any user signed in to the application
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write: if request.auth != null;
}
}
}
For Realtime Database:
// Only authenticated users can access/write data
{
“rules”: {
“.read”: “auth != null”,
“.write”: “auth != null”
}
}
Speaking through experience, there are two main ways of securing your data:
Set a field in the document such as "userID" and only allow CRUD when the auth.uid value matches this field.
Use the collection-document-collection nature of cloud firestore and write a rule where you allow a user to CRUD all of their own collection. E.g.
match /users/{userID}{
allow read: if request.auth.uid ==userID;
allow write: if request.auth.uid == userID;
match /userDocs/{docID}{
allow read: if request.auth.uid == userID;
allow write: if request.auth.uid == userID;
}
}
Ideally you need to allow only authenticated users to access resource. From you code above
{
"rules": {
".read": true,
".write": true
}
}
The above will allow anybody to read and write to the database even to unauthenticated users.
for firestore as you can see the rules state that it should only allow full priviledge read and write to cloud firestore if only the date has not passed (2020,9,2)
VISIT the link To learn more about firebase database rules
and visit
to learn about firestore rules
You can use firebase authentication for your users then if they are authenticated they can access the database.