Reworked login system + added substitution page

BetterIServ.Backend/Controllers/AuthController.cs

@@ -0,0 +1,50 @@
+using BetterIServ.Backend.Entities;
+using Microsoft.AspNetCore.Mvc;
+using PuppeteerSharp;
+using Credentials = BetterIServ.Backend.Entities.Credentials;
+
+namespace BetterIServ.Backend.Controllers; 
+
+[ApiController]
+[Route("auth")]
+public class AuthController : ControllerBase {
+    
+    [HttpPost("login")]
+    public async Task<ActionResult<AuthKeys>> GetAuthKeysV2([FromBody] Credentials credentials) {
+        await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
+        await using var page = await browser.NewPageAsync();
+        await page.GoToAsync($"https://{credentials.Domain}/iserv/auth/login");
+
+        await page.WaitForSelectorAsync("#form-username > input");
+        await page.Keyboard.TypeAsync(credentials.Username);
+        await page.Keyboard.PressAsync("Tab");
+        await page.Keyboard.TypeAsync(credentials.Password);
+        await page.ClickAsync("body > div > main > div > div.panel-body > form > div.row > div:nth-child(1) > button");
+        await Task.Delay(500);
+
+        var authKeys = new AuthKeys();
+        var cookies = await page.GetCookiesAsync();
+        foreach (var cookie in cookies) {
+            switch (cookie.Name) {
+                case "IServSession":
+                    authKeys.Session = cookie.Value;
+                    break;
+                case "IServSAT":
+                    authKeys.Sat = cookie.Value;
+                    break;
+                case "IServAuthSID":
+                    authKeys.AuthSid = cookie.Value;
+                    break;
+                case "IServSATId":
+                    authKeys.SatId = cookie.Value;
+                    break;
+                case "IServAuthSession":
+                    authKeys.AuthSession = cookie.Value;
+                    break;
+            }
+        }
+
+        return authKeys;
+    }
+
+}