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Firebase kicks out current user
(19 answers)
Closed 6 years ago.
i'm writing an ios-app with firebase as backend.
In my app, there are some admins, who should be able to create new users. A new user should not be able to create an account on his own.
On web, i'm using the function
ref.createUser({
email: ctrl.user.email,
password: ctrl.user.password
}, function(error, userData) { // }
with a random password and reset the password afterwards. So the user will receive an email with a password reset link and can set a new password and log in after that. After creating the user, i'm storing all relevant userdata to the database.
On ios i'm trying to create a new user with:
FIRAuth.auth()?.createUser(withEmail: email, password: password) { (user, error) in }
But if I do it this way, I'm signed out with my admin-account and logged in with my fresh created account. Due to this, I'm not able, to store the userdata to the database, because this is restricted to admins....
Is there a way on ios to only create an user, without to auto-signin with this user?
Best wishes
Tobi
EDIT
I've written an AWS lambda function with the firebase admin sdk for node.js and create the user inside the function and trigger the function via a webservice-call from my ios-app.
Not perfect, but working....
Yes, calling createUser(withEmail:, password:) will log in a new user. To achieve what you are trying to do, I recommend a workaround by doing something like this (assume that currently an Admin is logged in):
// Create the values
var email = alreadySelectedUserEmail
var password = arc4random_uniform(1000000) // or another random number
// Send the information to the database
FIRDatabase.database().reference().child("user_data").child(email) .
setValue("lorem ipsum") // or another value
// THEN create the user, AFTER sending the data
// This will automatically log you in to the new account
FIRAuth.auth()?.createUser(withEmail: email,
password: password) { (user, error) in
// Check for any errors
if let error = error {
print error
} else {
// If there are none, LOG OUT…
try! FIRAuth.auth()!.signOut()
// …and log back into Admin (with whatever login info they have)
FIRAuth.auth()?.signIn(withEmail: adminEmail,
password: adminPassword) { (user, error) in
// Check for any errors
if let error = error {
print error
} else {
// All done, new account created!
}
}
}
Related
I have the following logic for allowing guest users to login to my app:
(1) Login as Anonymous.
(2) Check if Facebook is logged.
(3) If it is logged to Facebook, link to Anonymous.
(4) If link fails, Login to firebase passing facebook token to Firebase
If I am not logged in Facebook the Anonymous ID given by firebase after step (1) is always the same. However, the first time I login to Facebook, I link the account to firebase as in step (3). And from that onwards, I get a different Anonymous ID every time I go through the login process.
Question 1. Will the Anonymous ID in step (1) ALWAYS be the same until I login to Facebook for the first time?
Question 2. What is the best login flow to allow users to save data in the backend as guests, and link to facebook later when the user decides to do so?
Here is my swift code that implements my pseudo code:
func login() -> Promise<AuthCredential?> {
// Login as Anonymous. Check if FB is logged. If it is, link to Anonymous. If fails, pass FB token to Firebase
print("........................")
print("Starting Login")
return Promise { seal in
Auth.auth().signInAnonymously() { (authResult, error) in
print("-Done Login Anonymously", authResult?.credential, Auth.auth().currentUser?.uid)
if let error = error {
print("-DID NOT SIGNED UP WITH FIREBASE:", error)
seal.reject(error)
} else {
if AccessToken.isCurrentAccessTokenActive { // If Facebook token is active exchange for Firebase
let credential = FacebookAuthProvider.credential(withAccessToken: AccessToken.current!.tokenString)
print("-Loggged with FACEBOOK!!!!", credential)
Auth.auth().currentUser!.link(with: credential) { (result, error) in
print("-Linked Account!!!!??????????", result as Any, error as Any)
if error != nil {
Auth.auth().signIn(with: credential) { (authResult, error) in
print("-Signed UP in Firebase USIG FB. No Linking")
if let error = error {
print("-DID NOT SIGNED UP WITH FIREBASE:", error)
seal.reject(error)
} else {
print("-DID SIGNED UP WITH FIREBASE using FB:", Auth.auth().currentUser?.uid)
seal.fulfill(authResult?.credential)
}
}
}
}
}
// print("-Done Login", Auth.auth().currentUser?.uid)
// seal.fulfill(authResult?.credential)
}
}
}
}
The API documentation for signInAnonymously (javascript) reads:
If there is already an anonymous user signed in, that user will be
returned; otherwise, a new anonymous user identity will be created and
returned.
You probably only want to call signInAnonymously if there is no user signed into the app. It's best to wait to see if a user is already signed in using an auth state listener, as the sign-in process is not immediate.
Once you link the anonymous account with a full account, you should probably not call signInAnonymously again, since you probably want the user to stay signed in with their full account and no create another new anon account.
After I have run the required methods to unlink the password provider, it still appears when I query it using user.providerData. The FirebaseAuth-Console registers that the password providers has been unlinked, also if I run the unlink method again I get the appropriate error: "User was not linked to an account with the given provider."
Doing the same with facebook or google login runs without problems. The error only occurs if I unlink an additional password login.
Only after I logout and login again the query is correct.
All other changes are displayed immediately/correctly. Google link/unlik, facbeook unlink/link. Even the password link method is registered instantly in user.providerData, only the unlink method is not registered immediately.
Any Ideas?
Flow:
1. Query providers IDs
1.2. result -> user.providerData = facebook.com, password
2. Execute unlink "password" provider method (runs without error)
3. Query provider IDs again
3.1. ❌ result -> user.providerData = facebook.com, password
Query method:
if let user = Auth.auth().currentUser {
for profile in user.providerData {
// Id of the provider
print(profile.providerID)
}
} else {
// No user is signed in.
}
Unlink method:
Auth.auth().currentUser?.unlink(fromProvider: "password", completion: { (user, error) in
if let error = error {
print(error)
} else {
print("successfully unlinked eMail & password login")
}
})
Google has confirmed to me that this is a current bug.
They told me they were working on the issue, and will be available on the next release, but can't provide any details or exact timeline when this would be available.
I am currently using Parse to create and log in users for my iOS app. After a user signs up with a new account, Parse does not log them in––it just clears the text fields. Some users get confused thinking the signup was unsuccessful, and try to put their information in again, prompting the "username taken" alert. How can I modify the Parse login so that it automatically logs in the user once they create a successful account? (I currently have a ParseLoginHelper class––would I make this modification in the PFSignUpViewControllerDelegate extension?)
If anyone has example code they would like to share in their answer, please note that I'm using Swift for my project.
When you are signing up (register) a new users you don't need to call the logIn function again in order to log them in to the app.
After the signing up process they are already logged in. In order to check if they are logged in you can check if the current user is not nil
if PFUser.currentUser() != nil {
}
At the end your sign up code should look like the following:
let user = PFUser()
user.username = "USERNAME"
user.password = "PASSWORD"
user.email = "EMAIL"
// add more fields
user.signUpInBackgroundWithBlock {
(succeeded: Bool, error: NSError?) -> Void in
if succeeded {
// here the current user should not be nil.
// if it is then please check for sessionToken
if PFUser.currentUser() != nil {
// user is logged in
}
}
}
By following the information on this link, I am currently working on trying to create a user using Firebase, as shown in the code below. However, it appears no user is created when the app is run. Any input is greatly appreciated. The Firebase URL was taken from my test database.
let ref = Firebase(url: "https://test-96df2.firebaseio.com")
ref.createUser("bobtony#example.com", password: "correcthorsebatterystaple",
withValueCompletionBlock: { error, result in
if error != nil {
// There was an error creating the account
print("error creating account")
} else {
let uid = result["uid"] as? String
print("Successfully created user account with uid: \(uid)")
}
})
Edit:
The propagated error is:
Error Code: AUTHENTICATION_DISABLED) Projects created at
console.firebase.google.com must use the new Firebase Authentication
SDKs available from firebase.google.com/docs/auth/
However, as shown below, the email/password authentication is enabled in the Firebase console.
You have already authorized the email registration as I can see in your screenshot. So the problem doesnt realies on AUTHENTICATION_DISABLED.
From your error message and the snippet code I can see that you have created a new project but you are trying to use the legacy firebase SDK and so you will have compatibility issues. Also, you are looking into the old firebase documentation.
First of all you will need to make sure you have configured your project as documented in new firebase start guide.
After, you can take a look at the documentation for creating a new user with the new sdk. You can find the 3.x create user call bellow.
FIRAuth.auth()?.createUserWithEmail(email, password: password) { (user, error) in
// ...
}
I'm trying to setup a password reset within an app using swift 2 and Firebase.
Following Firebases example:
let ref = Firebase(url: "https://<YOUR-FIREBASE-APP>.firebaseio.com")
ref.changePasswordForUser("bobtony#example.com", fromOld: "correcthorsebatterystaple",
toNew: "batteryhorsestaplecorrect", withCompletionBlock: { error in
if error != nil {
// There was an error processing the request
} else {
// Password changed successfully
}
})
How can I access an authenticated users email & password in order to pass those values to this function instead of the current mock data?
I'm not interested in sending a temporary password in a pass reset email.
I was thinking that I'd be able to access these values by something like:
let ref = Firebase(url: firebaseURL)
ref.authData.providerData.someValueHere
But I haven't been able to figure it out.
How can I access these values from the currently authenticated user?
How can I access an authenticated users email & password
Firebase does not store the user's password. Instead it stores a hash of the user's password. That means that there is no API from Firebase that returns a user's password.