Add user registration, add password hashing, add touchcode generation

backend/Controllers/UserController.cs

@@ -1,6 +1,8 @@
 using Microsoft.AspNetCore.Mvc;
 using backend.Application;
 using backend.Models;
+using System.Text.Json.Nodes;
+using Microsoft.AspNetCore.Identity;
 
 namespace backend.Controllers;
 
@@ -8,9 +10,31 @@ namespace backend.Controllers;
 public class UserController : ControllerBase
 {
     [HttpPost("Register")]
-    public void Register()
+    public IActionResult Register([FromBody] JsonObject input)
     {
-		ApplicationState.DbContext!.Add(new User { Username = "test", Password = "test", TouchCode = "1234" });
+        if (input["username"] == null || input["password"] == null) {
+            return BadRequest("Username and password required");
+        }
+
+        var passwordHasher = new PasswordHasher<object>();
+        string hashedPassword = passwordHasher.HashPassword(null, input["password"]!.ToString());
+
+        string touchCode = "";
+        for (int i = 0; i < 4; i++) {
+            touchCode += (1 + new Random().Next() % 5).ToString();
+        }
+
+        var user = new User {
+            Username = input["username"]!.ToString(),
+            Password = hashedPassword,
+            TouchCode = touchCode,
+        };
+
+		ApplicationState.DbContext!.Add(user);
 		ApplicationState.DbContext!.SaveChanges();
+
+        Console.WriteLine("Created user: " + user.Username);
+
+        return Ok();
     }
 }