Add config option to prevent users from login and register

Moonlight/App/Configuration/ConfigV1.cs

@@ -17,6 +17,8 @@ public class ConfigV1
         [Description("The url moonlight is accesible with from the internet")]
         public string AppUrl { get; set; } = "http://your-moonlight-url-without-slash";
 
+        [JsonProperty("Auth")] public AuthData Auth { get; set; } = new();
+
         [JsonProperty("Database")] public DatabaseData Database { get; set; } = new();
 
         [JsonProperty("DiscordBotApi")] public DiscordBotApiData DiscordBotApi { get; set; } = new();
@@ -39,8 +41,7 @@ public class ConfigV1
 
         [JsonProperty("Subscriptions")] public SubscriptionsData Subscriptions { get; set; } = new();
 
-        [JsonProperty("DiscordNotifications")]
-        public DiscordNotificationsData DiscordNotifications { get; set; } = new();
+        [JsonProperty("DiscordNotifications")] public DiscordNotificationsData DiscordNotifications { get; set; } = new();
 
         [JsonProperty("Statistics")] public StatisticsData Statistics { get; set; } = new();
 
@@ -50,6 +51,17 @@ public class ConfigV1
 
         [JsonProperty("Sentry")] public SentryData Sentry { get; set; } = new();
     }
+    
+    public class AuthData
+    {
+        [JsonProperty("DenyLogin")]
+        [Description("Prevent every new login")]
+        public bool DenyLogin { get; set; } = false;
+        
+        [JsonProperty("DenyRegister")]
+        [Description("Prevent every new user to register")]
+        public bool DenyRegister { get; set; } = false;
+    }
 
     public class CleanupData
     {

Moonlight/App/Services/UserService.cs

@@ -18,6 +18,7 @@ public class UserService
     private readonly IdentityService IdentityService;
     private readonly IpLocateService IpLocateService;
     private readonly DateTimeService DateTimeService;
+    private readonly ConfigService ConfigService;
 
     private readonly string JwtSecret;
 
@@ -32,6 +33,7 @@ public class UserService
     {
         UserRepository = userRepository;
         TotpService = totpService;
+        ConfigService = configService;
         MailService = mailService;
         IdentityService = identityService;
         IpLocateService = ipLocateService;
@@ -44,6 +46,9 @@ public class UserService
 
     public async Task<string> Register(string email, string password, string firstname, string lastname)
     {
+        if (ConfigService.Get().Moonlight.Auth.DenyRegister)
+            throw new DisplayException("This operation was disabled");
+        
         // Check if the email is already taken
         var emailTaken = UserRepository.Get().FirstOrDefault(x => x.Email == email) != null;
 
@@ -108,6 +113,9 @@ public class UserService
 
     public async Task<string> Login(string email, string password, string totpCode = "")
     {
+        if (ConfigService.Get().Moonlight.Auth.DenyLogin)
+            throw new DisplayException("This operation was disabled");
+        
         // First password check and check if totp is enabled
         var needTotp = await CheckTotp(email, password);