Made an attempt at PlexOAuth !wip

src/Ombi/Controllers/PlexOAuthController.cs

@@ -0,0 +1,40 @@
+using System.Net;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Http.Internal;
+using System.IO;
+using System.Text;
+
+namespace Ombi.Controllers
+{
+    [ApiExplorerSettings(IgnoreApi = true)]
+    [ApiV1]
+    [AllowAnonymous]
+    public class PlexOAuthController : Controller
+    {
+
+        [HttpGet]
+        public IActionResult OAuthCallBack()
+        {
+            var bodyStr = "";
+            var req = Request;
+
+            // Allows using several time the stream in ASP.Net Core
+            req.EnableRewind();
+
+            // Arguments: Stream, Encoding, detect encoding, buffer size 
+            // AND, the most important: keep stream opened
+            using (StreamReader reader
+                = new StreamReader(req.Body, Encoding.UTF8, true, 1024, true))
+            {
+                bodyStr = reader.ReadToEnd();
+            }
+
+            // Rewind, so the core is not lost when it looks the body for the request
+            req.Body.Position = 0;
+
+            // Do your work with bodyStr
+            return Ok();
+        }
+    }
+}

src/Ombi/Controllers/TokenController.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.IdentityModel.Tokens.Jwt;
 using System.Linq;
+using System.Net.Http;
 using System.Security.Claims;
 using System.Text;
 using System.Threading.Tasks;
@@ -9,6 +10,7 @@ using Microsoft.AspNetCore.Identity;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Options;
 using Microsoft.IdentityModel.Tokens;
+using Ombi.Api;
 using Ombi.Core.Authentication;
 using Ombi.Helpers;
 using Ombi.Models;
@@ -62,6 +64,8 @@ namespace Ombi.Controllers
                 user.EmailLogin = true;
             }
 
+            if (!model.UsePlexOAuth)
+            {
                 // Verify Password
                 if (await _userManager.CheckPasswordAsync(user, model.Password))
                 {
@@ -107,6 +111,19 @@ namespace Ombi.Controllers
                         expiration = token.ValidTo
                     });
                 }
+            }
+            else
+            {
+                // Plex OAuth
+                // Redirect them to Plex
+
+                var request = new Request("auth", "https://app.plex.tv", HttpMethod.Get);
+                request.AddQueryString("clientID", "OMBIv3");
+                request.AddQueryString("forwardUrl", "http://localhost:5000");
+                request.AddQueryString("context-device-product", "http://localhost:5000");
+                return new RedirectResult("https://app.plex.tv/auth#?forwardUrl=http://localhost:5000/api/v1/plexoauth&clientID=OMBIv3&context%5Bdevice%5D%5Bproduct%5D=Ombi%20SSO");
+
+            }
 
             return new UnauthorizedResult();
         }

src/Ombi/Models/UserAuthModel.cs

@@ -6,5 +6,6 @@
         public string Password { get; set; }
         public bool RememberMe { get; set; }
         public bool UsePlexAdminAccount { get; set; }
+        public bool UsePlexOAuth { get; set; }
     }
 }