3 files changed, 124 insertions, 0 deletions
diff --git a/VPNAuth.Server/Pages/Auth.cshtml b/VPNAuth.Server/Pages/Auth.cshtml
new file mode 100644
index 0000000..5ac8efe
--- /dev/null
+++ b/VPNAuth.Server/Pages/Auth.cshtml
@@ -0,0 +1,31 @@
+@page "/auth"
+@model VPNAuth.Server.Pages.Auth
+
+@{
+    Layout = null;
+}
+
+<!DOCTYPE html>
+
+<html>
+<head>
+    <title>VPNAuth - Auth</title>
+</head>
+<body style="text-align: center;">
+    <h1>Authorization</h1>
+    <h2>VPNAuth</h2>
+    @if (Model.ValidRequest)
+    {
+        <div>
+            <p>Do you want to log into <i>@Request.Query["client_id"]</i>?</p>
+            <button onclick="window.location = '/accept-auth/@Model.RequestEntry?.Entity.Id'">Yes</button>
+            <br/>
+            <p>You are logged in as <i>@Model.User?.Username</i>.</p>
+        </div>
+    }
+    else
+    {
+        <b>Invalid request.</b>
+    }
+</body>
+</html>
diff --git a/VPNAuth.Server/Pages/Auth.cshtml.cs b/VPNAuth.Server/Pages/Auth.cshtml.cs
new file mode 100644
index 0000000..bdcbc59
--- /dev/null
+++ b/VPNAuth.Server/Pages/Auth.cshtml.cs
@@ -0,0 +1,52 @@
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using VPNAuth.Server.Database;
+
+namespace VPNAuth.Server.Pages;
+
+public class Auth : PageModel
+{
+    public Config Config;
+    public ConfigUser? User;
+    public bool ValidRequest;
+    public EntityEntry<AuthRequest>? RequestEntry;
+    
+    public readonly List<string> RequiredQueryParams =
+    [
+        "response_type",
+        "client_id",
+        "scope",
+        "code_challenge_method",
+        "code_challenge"
+    ];
+    
+    public void OnGet()
+    {
+        Config = Config.Read();
+        User = HttpContext.GetUser();
+
+        ValidRequest = RequiredQueryParams.All(key => Request.Query.ContainsKey(key))
+                            && Config.FindApp(Request.Query["client_id"]!) != null
+                            && Request.Query["code_challenge_method"] == "S256"
+                            && User != null;
+
+        RequestEntry = null;
+
+        if (ValidRequest)
+        {
+            using var db = new Database.Database();
+            RequestEntry = db.Add(new AuthRequest
+            {
+                InitTime = DateTime.Now,
+                ClientId = Request.Query["client_id"]!,
+                Code = PkceUtils.GenerateCode(),
+                State = Request.Query["state"],
+                Scopes = Request.Query["scope"].ToString().Split(" ").ToList(),
+                CodeChallenge = Request.Query["code_challenge"]!,
+                CodeChallengeMethod = Request.Query["code_challenge_method"]!,
+                Accepted = false
+            });
+            db.SaveChanges();
+        }
+    }
+}
diff --git a/VPNAuth.Server/Pages/Dashboard.cshtml b/VPNAuth.Server/Pages/Dashboard.cshtml
new file mode 100644
index 0000000..cb00d9f
--- /dev/null
+++ b/VPNAuth.Server/Pages/Dashboard.cshtml
@@ -0,0 +1,41 @@
+@page "/"
+@using Microsoft.EntityFrameworkCore.ChangeTracking
+@using VPNAuth.Server
+@using VPNAuth.Server.Database
+
+@{
+    Layout = null;
+    
+    string remoteIp = Request.HttpContext.GetRemoteIpAddress();
+    ConfigUser? user = Request.HttpContext.GetUser();
+}
+
+<!DOCTYPE html>
+
+<html>
+<head>
+    <title>VPNAuth - Dashboard</title>
+</head>
+<body style="text-align: center;">
+    @if (user == null)
+    {
+        <p>No user detected</p>
+    }
+    else
+    {
+        <div>
+            <h1>Dashboard</h1>
+            <h2>VPNAuth</h2>
+            <p>Hey, @user.Username!</p>
+            <i>User settings coming soon...</i>
+            <h3>Your IPs</h3>
+            <ul style="list-style-position: inside;">
+                @foreach (var ip in user.Ips!)
+                {
+                    <li>@ip</li>
+                }
+            </ul>
+        </div>
+    }
+</body>
+</html>