add changepw

todo: cmd nicht in der konsole loggen @hydrant

ReallifeGamemode.Server/Commands/UserCommands.cs

@@ -22,6 +22,7 @@ namespace ReallifeGamemode.Server.Commands
   {
     private static readonly ILogger logger = LogManager.GetLogger<UserCommands>();
 
+    private const int PASSWORD_CHANGE_FEE = 5000;
     private const int SMS_PRICE = 5;
 
     [Command("rent", "~m~rent stop")]
@@ -114,6 +115,43 @@ namespace ReallifeGamemode.Server.Commands
       player.SendChatMessage("~y~[EVENTPORT] ~s~Du hast dich zum Event teleportiert");
     }
 
+    [Command("changepw", "~m~Benutzung: ~s~/changepw [Aktuelles Passwort] [Neues Passwort]", SensitiveInfo = true)]
+    public void CmdUserChangePw(Player player, string oldPassword, string newPassword)
+    {
+      if (!player.IsLoggedIn()) return;
+
+      if (oldPassword == newPassword)
+      {
+        ChatService.ErrorMessage(player, "Die eingegebenen Passwörter sind identisch");
+        return;
+      }
+
+      if (newPassword.Length < GlobalHelper.requiredPasswordLength)
+      {
+        ChatService.ErrorMessage(player, "Das neue Passwort muss aus mindestens sechs Zeichen bestehen");
+        return;
+      }
+
+      using (var dbContext = new DatabaseContext())
+      {
+        User user = player.GetUser(dbContext);
+
+        if (user.Password != NAPI.Util.GetHashSha256(oldPassword))
+        {
+          ChatService.ErrorMessage(player, "Du hast dein aktuelles Passwort falsch eingegeben");
+          return;
+        }
+
+        user.Password = NAPI.Util.GetHashSha256(newPassword);
+        logger.LogInformation("Player {0} changed their password for {1}", player.Name, PASSWORD_CHANGE_FEE.ToMoneyString());
+
+        user.BankAccount.Balance -= PASSWORD_CHANGE_FEE;
+        dbContext.SaveChanges();
+      }
+
+      ChatService.SendMessage(player, $"~y~[ACCOUNT] ~s~Du hast dein Passwort erfolgreich geändert. Dir wurden ~y~{ PASSWORD_CHANGE_FEE.ToMoneyString() } ~s~in Rechnung gestellt.");
+    }
+
     [Command("sms", "~m~Benutzung: ~s~/sms [Spieler] [Nachricht]", GreedyArg = true)]
     public void CmdUserSMS(Player player, string name, string msg)
     {