iOS: Add user property "refreshToken" from FIRUser

[ti7215fi]

Situation/Problem

I have a hybrid Ionic (Capacitor+Cordova) iOS & Android App.
To authenticate the users i uses Firebase Authentication and this cordova plugin. This works really fine (thank you) and there are no problems.

In addition to that, I have one native share extension per platform. Firebase Authentication is also required there to authenticate against my backend.
For Android share extension i can use the Firebase framework directly and can just follow the documentation.
For iOS i can share the idToken from my main app into the extension. This works also fine, but then i can't refresh the idToken if the token is expired. (There are some issues to integrate firebase into a ios extension).

Solution

As a solution i can use the Firebase Authentication REST API: Exchange a refresh token for an ID token. For that i need the refresh_token, but this property is missing in the current implementation. According to the documentation there is this attribute directly in FIRUser. FIRUser#refreshtoken

@chemerisuk I'm not entirely sure, but the following changes should be sufficient, right?

FirebaseAuthenticationPlugin.m

- (CDVPluginResult*)getProfileResult:(FIRUser *)user {
    NSDictionary* result = nil;
    if (user) {
        result = @{
            @"uid": user.uid,
            @"providerId": user.providerID,
            @"displayName": user.displayName ? user.displayName : @"",
            @"email": user.email ? user.email : @"",
            @"phoneNumber": user.phoneNumber ? user.phoneNumber : @"",
            @"photoURL": user.photoURL ? user.photoURL.absoluteString : @"",
            @"emailVerified": [NSNumber numberWithBool:user.emailVerified],
            @"refreshToken": user.refreshToken ? user.refreshToken : @"" // <--- Just add this Line
        };
    }

    return [CDVPluginResult resultWithStatus:CDVCommandStatus_OK messageAsDictionary:result];
}

[chemerisuk]

Hey @ti7215fi don't hesitate to create new PR with this change. You also need to add similar property in Android part for consistency.

[ti7215fi]

Hey @chemerisuk thank you for your answer and your note. 👍
I will check what the equivalent is on Android. getRefreshToken() does not exist there, unfortunately.