From 212922849147a3ab4a1a5449944a1b259ee0b251 Mon Sep 17 00:00:00 2001
From: mschuepbach <mschuepbach@pm.me>
Date: Sat, 16 Mar 2024 11:27:17 +0100
Subject: [PATCH] Get device code for authentication

---
 .../plugins/YouTubeMusic/settings/basic.html  |  8 +++
 YouTubeMusic/OAuth2.pm                        | 49 +++++++++++++++++++
 YouTubeMusic/Settings.pm                      |  6 +++
 YouTubeMusic/strings.txt                      | 12 +++++
 4 files changed, 75 insertions(+)
 create mode 100644 YouTubeMusic/OAuth2.pm

diff --git a/YouTubeMusic/HTML/EN/plugins/YouTubeMusic/settings/basic.html b/YouTubeMusic/HTML/EN/plugins/YouTubeMusic/settings/basic.html
index 602ca46..e94d96e 100644
--- a/YouTubeMusic/HTML/EN/plugins/YouTubeMusic/settings/basic.html
+++ b/YouTubeMusic/HTML/EN/plugins/YouTubeMusic/settings/basic.html
@@ -6,4 +6,12 @@
 		<input type="text" class="stdedit" name="pref_testPref" id="pref_testPref" value="[% prefs.pref_testPref %]" size="45">
 	[% END %]
 
+	[% WRAPPER setting title="PLUGIN_YOUTUBEMUSIC_AUTH" desc="PLUGIN_YOUTUBEMUSIC_AUTH_DESC" %]
+		<input type="submit" name="get_device_code" value=[% "PLUGIN_YOUTUBEMUSIC_START_AUTH" | string %]
+		[% IF user_code %]
+			<a href="[% verification_url %]" target="none">[% "PLUGIN_YOUTUBEMUSIC_VERIFICATIONURL" | string %]</a>
+			<div>[% user_code %]</div>
+		[% END %]
+	[% END %]
+
 [% PROCESS settings/footer.html %]
diff --git a/YouTubeMusic/OAuth2.pm b/YouTubeMusic/OAuth2.pm
new file mode 100644
index 0000000..9cf1eb0
--- /dev/null
+++ b/YouTubeMusic/OAuth2.pm
@@ -0,0 +1,49 @@
+package Plugins::YouTubeMusic::OAuth2;
+
+use strict;
+
+use Slim::Utils::Log;
+use Slim::Utils::Cache;
+use Slim::Utils::Strings qw(string cstring);
+use JSON::XS::VersionOneAndTwo;
+use Data::Dumper;
+
+my $log   = logger('plugin.youtubemusic');
+my $cache = Slim::Utils::Cache->new();
+
+sub getDeviceCode {
+	my $post = "client_id=861556708454-d6dlm3lh05idd8npek18k6be8ba3oc68.apps.googleusercontent.com" .
+			"&scope=https://www.googleapis.com/auth/youtube";
+	
+	my $http = Slim::Networking::SimpleAsyncHTTP->new(
+		sub {
+			my $response = shift;
+			my $result = eval { from_json($response->content) };
+
+			if ($@) {
+				$log->error(Data::Dump::dump($response)) unless main::DEBUGLOG && $log->is_debug;
+				$log->error($@);
+			} else {
+				$cache->set("yt:device_code", $result->{device_code}, $result->{expires_in});
+				$cache->set("yt:verification_url", $result->{verification_url}, $result->{expires_in});
+				$cache->set("yt:user_code", $result->{user_code}, $result->{expires_in});
+
+				$log->debug("content:", $response->content);
+			}
+		},
+		sub { 
+			$log->error($_[1]);
+		},
+		{
+			timeout => 15,
+		}
+	);
+	
+	$http->post(
+		"https://www.youtube.com/o/oauth2/device/code",
+		'Content-Type' => 'application/x-www-form-urlencoded',
+		$post,
+	);
+}
+
+1;
diff --git a/YouTubeMusic/Settings.pm b/YouTubeMusic/Settings.pm
index 2ad6f6f..95f59f5 100644
--- a/YouTubeMusic/Settings.pm
+++ b/YouTubeMusic/Settings.pm
@@ -7,6 +7,7 @@ use Slim::Utils::Log;
 use Slim::Utils::Prefs;
 
 my $log = logger('plugin.youtubemusic');
+my $cache = Slim::Utils::Cache->new();
 
 sub name {
 	return 'PLUGIN_YOUTUBEMUSIC';
@@ -27,6 +28,11 @@ sub handler {
 		preferences('plugin.youtubemusic')->set('testPref', $params->{'pref_testPref'});
 	}
 
+	Plugins::YouTubeMusic::OAuth2::getDeviceCode if $params->{get_device_code};
+
+	$params->{user_code} = $cache->get('yt:user_code');
+	$params->{verification_url} = $cache->get('yt:verification_url');
+
 	return $class->SUPER::handler($client, $params);
 }
 
diff --git a/YouTubeMusic/strings.txt b/YouTubeMusic/strings.txt
index 0961717..79db065 100644
--- a/YouTubeMusic/strings.txt
+++ b/YouTubeMusic/strings.txt
@@ -10,3 +10,15 @@ PLUGIN_YOUTUBEMUSIC_TESTPREF
 PLUGIN_YOUTUBEMUSIC_TESTPREF_DESC
 	EN	This is a test.
 
+PLUGIN_YOUTUBEMUSIC_AUTH
+	EN	Login with Google
+
+PLUGIN_YOUTUBEMUSIC_AUTH_DESC
+	EN	You need to login with your Google account to use this plugin.
+
+PLUGIN_YOUTUBEMUSIC_START_AUTH
+	EN	Start
+
+PLUGIN_YOUTUBEMUSIC_VERIFICATIONURL
+	EN	Login
+