Authenticate on android using deep link and GodotFirebase plugin #333

MiqueiasDevGames · 2023-02-28T21:51:35Z

MiqueiasDevGames
Feb 28, 2023

We have already managed to add the deep link in godot using the singleton plugins:

GODOT PLUGIN


package com.godot.game;

import org.godotengine.godot.Godot;
import org.godotengine.godot.plugin.GodotPlugin;

import android.net.Uri;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class AppLinks extends GodotPlugin {
    public AppLinks(Godot godot) {
        super(godot);
    }

    @Override
    public String getPluginName() {
        return "AppLinks";
    }


  public String getUrl(String paramName) {
    	String url = Godot.getCurrentIntent().getDataString();
    	Godot.getCurrentIntent().setData(null);
	
	if (url != null) {
      	    Uri uri = Uri.parse(url);
            return uri.getQueryParameter(paramName);
    	} else {
            return null;
    	}
   }



    @Override
    public List<String> getPluginMethods() {
        return Collections.unmodifiableList(Arrays.asList("getUrl"));
    }
}

You can put it on the side of
GodotApp.java
in android/build/src/com/godot/game or build as a plugin if you want;

FIREBASE HOSTING AND AndroidManifest.xml

you can use firebase hosting here, use one of those links like project.web.app
And don't forget to add it to the URI in google auth
You will also need to add to AndroidManifest.xml :


<!-- Deep Links Auth FIrebase -->
<intent-filter android:autoVerify="true"> \n
    <action android:name="android.intent.action.VIEW" /> \n
    <category android:name="android.intent.category.DEFAULT" /> \n
    <category android:name="android.intent.category.BROWSABLE" /> \n

    <data android:host="project.web.app" android:pathPrefix="/" android:scheme="https" /> \n

</intent-filter> \n

More Information here

And also need this:
after , if you are going to do it as a plugin, you need to modify com.godot.game

<meta-data
 android:name="org.godotengine.plugin.v1.AppLinks"
 android:value="com.godot.game.AppLinks" />

Now on firebase hosting you will need to modify the index.html for this:
Remembering to replace https and project.web.app and com.godot.game
according to your check in the manifest

This will force the redirect back to the app.

<html>
  <head>
	<!-- Defina um ID para o meta tag -->
	<meta id="redirect-meta" http-equiv="refresh" content="0; url=intent://project.web.app/#Intent;scheme=https;package=com.godot.game;end" />

<!-- Adicione o seguinte script em seu HTML -->
<script>
  // Recupere a URL atual
  const url = new URL(window.location.href);

  // Adicione o parâmetro "code" ao valor do atributo "url" no meta tag
  const redirectMeta = document.getElementById("redirect-meta");
  redirectMeta.setAttribute("content", `0; url=intent://project.web.app/?code=${url.searchParams.get("code")}#Intent;scheme=https;package=com.godot.game;end`);
</script>


    </head>
  <body>
    Redirecionando...
  </body>
</html>

You will also need to create the .well-known folder and the .well-known/assetlinks.json file
before running firebase deploy

Don't forget to change, if necessary, the package
and to generate the sha256_cert_fingerprints with command: keytool -list -v -keystore my-release-key.keystore
assetlinks.json:


[{
  "relation": ["delegate_permission/common.handle_all_urls"],
  "target" : { "namespace": "android_app", "package_name": "com.godot.game",
               "sha256_cert_fingerprints": ["TT:LL:EX:AM:PLE:TT:LL:EX:AM:PLE:TT:LL:EX:AM:PLE:TT:LL:EX:AM:PLE:"] }
}]

More information: here

GODOT GDSCRIPT

login
Everything working, beauty!

extends Node

var provider = AuthProvider
var port = 8060


func _ready():
	Firebase.Auth.connect("login_succeeded", self, "_on_login_succeeded")
	Firebase.Auth.connect("login_failed",self, "_on_login_failed")
	Firebase.Auth.connect("token_refresh_succeeded",self,"_on_refresh_login_succeeded")
	
	#https://project.web.app
	Firebase.Auth.set_redirect_uri("https://project.web.app")
	#provider google
	provider = Firebase.Auth.get_GoogleProvider()
	
	#Login automatico
	_on_application_start()
	
	
	
func _on_login_succeeded(user : Dictionary):
	$Label.set_text("Successfully logged in with oAuth2 as: {email}".format({email=user.email}))
	
	Firebase.Auth.save_auth(user)
	
func _on_refresh_login_succeeded(user : Dictionary):
	$Label.set_text("Successfully logged!")
	



func _on_SignInWithGoogle_button_pressed():
	$Label.set_text("Exchanging authorization code with a oath token...")
	Firebase.Auth.get_auth_with_redirect(provider)
	
	
	


func _on_application_start():
	Firebase.Auth.load_auth()
	
	


#Usando deepLinks
func check_app_link():
	if Engine.has_singleton('AppLinks'):
		var applinks = Engine.get_singleton('AppLinks')
		var token = applinks.getUrl("code")

                #teste
		#$Label2.set_text(token)
		
                #Here we pass the code(token) to Firebase
		Firebase.Auth.login_with_oauth(token, provider)
		
func _notification(what):
	if what == NOTIFICATION_APP_RESUMED:
		check_app_link()

fenix-hub · 2023-03-01T08:23:40Z

fenix-hub
Mar 1, 2023

Thank you for opening this discussion.
Would you mind sharing a print of the app_url variable?
Obfuscate whatever token you get, I just need to understand the structure of the url.

2 replies

MiqueiasDevGames Mar 1, 2023
Author

@fenix-hub You don't even need anything else, it's working right, using the
Firebase.Auth.login_with_oauth(token, provider)

fenix-hub Mar 1, 2023

Good, so I guess whatever the OAuth2 flow is, providers will generate the same type of token (used for HTML5 too). Good to hear that my implementations works even beyond what I could imagine hehe :D
Thank you very much for your testing. Happy it is working for you.
I'll manage to make a wiki page about your instructions. Of course feel free to add more details here so I can port them back to the wiki.

juliusspencer · 2024-04-04T20:34:00Z

juliusspencer
Apr 4, 2024

Anyone else looking at this, in 4.2 Godot.getCurrentIntent() has moved to GodotFragment.getCurrentIntent()

0 replies

juliusspencer · 2024-04-04T21:23:25Z

juliusspencer
Apr 4, 2024

In 4.2 your Android Manifest will get overwritten so the IntentFilter will be missing so the above won't work unless you use a Plugin; see here.

Not sure how to do that yet.

0 replies

juliusspencer · 2024-04-05T02:20:42Z

juliusspencer
Apr 5, 2024

Got this going by making an applinks plugin folder with the following files:

addons

applinks
plugin.cfg
plugin.gd
plugin.gdextension.txt

Also the metadata tag in the manifest seemed to stick (wasn't overwritten):

<meta-data
 android:name="org.godotengine.plugin.v1.AppLinks"
 android:value="com.godot.game.AppLinks" />

My plugin.cfg is like this:

[plugin]

name="AppLinks"
description="Manifest editor for AppLinks."
author="JSA"
version="1.0"
script="plugin.gd"

My plugin.gd is like the following with myapp changed out:

@tool
extends EditorPlugin

# A class member to hold the editor export plugin during its lifecycle.
var export_plugin : AndroidExportPlugin

func _enter_tree():
	# Initialization of the plugin goes here.
	export_plugin = AndroidExportPlugin.new()
	add_export_plugin(export_plugin)


func _exit_tree():
	# Clean-up of the plugin goes here.
	remove_export_plugin(export_plugin)
	export_plugin = null


class AndroidExportPlugin extends EditorExportPlugin:
	# Plugin's name.
	var _plugin_name = "AppLinks"

	# Specifies which platform is supported by the plugin.
	func _supports_platform(platform):
		if platform is EditorExportPlatformAndroid:
			return true
		return false

	func _get_android_manifest_activity_element_contents(platform, debug) -> String:
		if not _supports_platform(platform):
			return ""

		var contents = """
			<!-- Deep Links Auth FIrebase -->
			<intent-filter android:autoVerify="true"> \n
				<action android:name="android.intent.action.VIEW" /> \n
				<category android:name="android.intent.category.DEFAULT" /> \n
				<category android:name="android.intent.category.BROWSABLE" /> \n
				<data android:host="myapp.web.app" android:pathPrefix="/" android:scheme="https" /> \n
			</intent-filter> \n
		"""
		return contents

	# Return the plugin's name.
	func _get_name():
		return _plugin_name

and the plugin.gdextension.txt is as follows:

[configuration]

entry_symbol = "plugin_library_init"
compatibility_minimum = "4.2"
android_aar_plugin = true

[libraries]

android.debug.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/debug/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"
android.release.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/release/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"
[configuration]

entry_symbol = "plugin_library_init"
compatibility_minimum = "4.2"
android_aar_plugin = true

[libraries]

android.debug.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/debug/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"
android.release.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/release/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"
[configuration]

entry_symbol = "plugin_library_init"
compatibility_minimum = "4.2"
android_aar_plugin = true

[libraries]

android.debug.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/debug/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"
android.release.arm64 = "res://addons/GDExtensionAndroidPluginTemplate/bin/release/arm64-v8a/libGDExtensionAndroidPluginTemplate.so"

Please note that while this worked, I'm new to it so there could be some mistakes here.

1 reply

WolfgangSenff Apr 5, 2024
Maintainer

That's very cool! Thanks for finding this. I'll have to delve into it further and see for myself.

nguyentuanit97 · 2024-05-06T06:57:41Z

nguyentuanit97
May 6, 2024

Any update?

0 replies

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Authenticate on android using deep link and GodotFirebase plugin #333

{{title}}

{{editor}}'s edit

{{editor}}'s edit

Replies: 5 comments 3 replies

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

{{title}}

Select a reply

Authenticate on android using deep link and GodotFirebase plugin #333

MiqueiasDevGames Feb 28, 2023

GODOT PLUGIN

FIREBASE HOSTING AND AndroidManifest.xml

GODOT GDSCRIPT

Replies: 5 comments · 3 replies

fenix-hub Mar 1, 2023

MiqueiasDevGames Mar 1, 2023 Author

fenix-hub Mar 1, 2023

juliusspencer Apr 4, 2024

juliusspencer Apr 4, 2024

juliusspencer Apr 5, 2024

WolfgangSenff Apr 5, 2024 Maintainer

nguyentuanit97 May 6, 2024

MiqueiasDevGames
Feb 28, 2023

Replies: 5 comments 3 replies

fenix-hub
Mar 1, 2023

MiqueiasDevGames Mar 1, 2023
Author

juliusspencer
Apr 4, 2024

juliusspencer
Apr 4, 2024

juliusspencer
Apr 5, 2024

WolfgangSenff Apr 5, 2024
Maintainer

nguyentuanit97
May 6, 2024