Get access token for authentication

YouTubeMusic/HTML/EN/plugins/YouTubeMusic/settings/basic.html

@@ -11,6 +11,10 @@
 		[% IF user_code %]
 			<a href="[% verification_url %]" target="none">[% "PLUGIN_YOUTUBEMUSIC_VERIFICATIONURL" | string %]</a>
 			<div>[% user_code %]</div>
+			<input type="submit" name="get_token" value="Check">
+			[% IF access_token %]
+				<div>Success</div>
+			[% END %]
 		[% END %]
 	[% END %]
 

YouTubeMusic/OAuth2.pm

@@ -8,12 +8,14 @@ use Slim::Utils::Strings qw(string cstring);
 use JSON::XS::VersionOneAndTwo;
 use Data::Dumper;
 
+use constant CLIENT_ID = "861556708454-d6dlm3lh05idd8npek18k6be8ba3oc68.apps.googleusercontent.com";
+use constant CLIENT_SECRET = "SboVhoG9s0rNafixCSGGKXAT";
+
 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 $post = "client_id=" . CLIENT_ID . "&scope=https://www.googleapis.com/auth/youtube";
 	
 	my $http = Slim::Networking::SimpleAsyncHTTP->new(
 		sub {
@@ -46,4 +48,53 @@ sub getDeviceCode {
 	);
 }
 
+sub getToken {
+	my $cb = shift;
+	my @params = @_;
+	my $post = "client_id=" . CLIENT_ID . "&client_secret=" . CLIENT_SECRET;
+	my $code = $cache->get('yt:device_code');
+	
+	if (defined $code) {
+		$post .= "&code=$code&grant_type=http://oauth.net/grant_type/device/1.0";
+	} else {
+		$post .= "&refresh_token=" . $prefs->get('refresh_token') . "&grant_type=refresh_token";
+	}
+	
+	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:access_token", $result->{access_token}, $result->{expires_in} - 60);
+				$prefs->set('refresh_token', $result->{refresh_token}) if $result->{refresh_token};
+				
+				$cache->remove('yt:user_code');
+				$cache->remove('yt:verification_url');
+				$cache->remove('yt:device_code');
+			
+				$log->debug("content:", $response->content);
+
+				$cb->(@params) if $cb;
+			}
+		},
+		sub {
+			$log->error($_[1]);
+			$cb->(@params) if $cb;
+		},
+		{
+			timeout => 15,
+		}
+	);
+	
+	$http->post(
+		"https://oauth2.googleapis.com/token",
+		'Content-Type' => 'application/x-www-form-urlencoded',
+		$post,
+	);
+}
+
 1;

YouTubeMusic/Settings.pm

@@ -29,9 +29,11 @@ sub handler {
 	}
 
 	Plugins::YouTubeMusic::OAuth2::getDeviceCode if $params->{get_device_code};
+	Plugins::YouTubeMusic::OAuth2::getToken if $params->{get_token};
 
 	$params->{user_code} = $cache->get('yt:user_code');
 	$params->{verification_url} = $cache->get('yt:verification_url');
+	$params->{access_token} = $cache->get('yt:access_token');
 
 	return $class->SUPER::handler($client, $params);
 }