Making a server

I was starting to make a server and client program with a login system. But there is something wrong, and i don't know what to do

NullReferenceException
UnityEngine.NetworkView.RPC (System.String name, RPCMode mode, System.Object[] args) (at C:/buildslave/unity/build/artifacts/generated/common/runtime/Networking.gen.cs:409)
Server.OnGUI () (at Assets/Server.cs:78)

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.Collections.Generic;
4. public class Server : MonoBehaviour {
5.     //The ip adress
6.     public string IP;
7.     //the port
8.     public int Port;
9.     //admin
10.     public bool admin;
11.     //first
12.     public bool First;
13.     //user
14.     public bool User;
15.     //username admin
16.     private string admin_password;
17.     //username admin
18.     private string admin_username;
19.     //username
20.     public string username;
21.     //password
22.     public string password;
23.     //list with username's
24.     public List<string> usernames;
25.     //list with password's
26.     public List<string> passwords;
27.     //list with emails
28.     public List<string> emails;
29.     //network view
30.     public NetworkView networkview;
31.     // Use this for initialization
32.     void Start () {
33.         First = true;
34.         IP = "HAVEARIGHTIPBUTDONTWANNAPOSTITONTHEFORUM";
35.         Port = 25001;
36.         admin_username = "NOTFORYOU";
37.         admin_password = "NOTFORYOU";
38.         username = " ";
39.         password = " ";
40.         usernames.Add("henk");
41.         passwords.Add ("henk");
42.     }
43.    
44.     // Update is called once per frame
45.     void Update () {
46.    
47.     }
48.  
49.     void OnGUI(){
50.         if(First == true){
51.             username = GUI.TextArea(new Rect(0, 0, Screen.width/4, Screen.height/10), username);
52.             password = GUI.TextArea(new Rect(0, Screen.height/4, Screen.width/4, Screen.height/10), password);
53.  
54.             if(GUI.Button(new Rect(0, Screen.height/10 * 8, Screen.width/6, Screen.height/6), "Log in as Admin")){
55.                 if(username == admin_username && password == admin_password){
56.                     admin = true;
57.                     First = false;
58.                     Network.InitializeServer(10, Port);
59.                 }
60.             }  
61.  
62.             if(GUI.Button(new Rect(0, Screen.height /10*6, Screen.width/6, Screen.height/6), "Go to User login")){
63.                 Network.Connect(IP, Port);
64.                 User = true;
65.                 First = false;
66.             }
67.         }
68.  
69.         if(admin == true){
70.             GUI.Box(new Rect(0, 0, Screen.width, Screen.height), " " + Network.connections.Length);
71.         }
72.  
73.         if(User == true){
74.             username = GUI.TextArea(new Rect(0, 0, Screen.width/4, Screen.height/4), username);
75.             password = GUI.TextArea(new Rect(0, Screen.height/4 * 2, Screen.width/4, Screen.height/4), password);
76.             if(GUI.Button(new Rect(0, Screen.height/10 * 8, Screen.width/6, Screen.height/6), "Log in as Admin")){
77.                 networkview = new NetworkView();
78.                 networkview.RPC("Login",RPCMode.Server, "" + username);
79.             }  
80.         }
81.  
82.  
83.     }
84.  
85.     [RPC]
86.     void Login(string Username, string Password)
87.     {
88.         if(Network.isServer)
89.         {
90.             for(int i = 0; i < usernames.Count; i++){
91.                 if(Username == usernames[i]){
92.                     if(Password == passwords[i]){
93.                         networkview.RPC("LoadLevel",RPCMode.Others);
94.                     }else{
95.                         Debug.Log("wrong password");
96.                     }
97.                 }
98.             }
99.            
100.  
101.                
102.         }
103.     }
104.  
105.     [RPC]
106.     void LoadLevel(){
107.         if(Network.isClient)
108.         {
109.             if(Application.loadedLevel == 0)
110.             {
111.                 Application.LoadLevel(1);
112.             }
113.         }
114.     }
115. }
116.  

 

Your Login method takes 2 arguments but you're only providing 1.

I also don't think you'll want to be sending people's passwords like that. A Unity server is typically another player hosting a game.

 

Well iam the only one that can start the server (This will be the only server), because this is a launcher, want people to see the news they want about games that are in development.

But how can i make sure the password will be in this function?

 

and what's to stop something intercepting the packet and stripping out the password... users just lost their account.

salt and encrypt locally, only send the result to the server.


just add the password as another parameter on the rpc call by the looks of it, scripting example has 2 parameters: http://docs.unity3d.com/ScriptReference/NetworkView.RPC.html

 

Sorry, but i dont really understand you (Iam just started today with learning the network part of unity3d)

 

i fixed already one thing
and now this one came up

Can't send RPC function since no connection was started.
UnityEngine.NetworkView:RPC(String, RPCMode, Object[])
Server:OnGUI() (at Assets/Server.cs:87)

 

which bit? the handling of passwords or the handling of more parameters across RPC?

 

Yeah fixed it:

1. i deleted the line before networkview.RPC

 

The only problem is that all the people that opend the program will be logged in if one is logging in