Add missing files

2024-01-13 19:24:15 +00:00
parent 494f6b1e00
commit 5b4dc640bd
4 changed files with 90 additions and 3 deletions
--- a/NostrRelay/Extensions.cs
+++ b/NostrRelay/Extensions.cs
@ -0,0 +1,80 @@
+using System.Net.WebSockets;
+using Newtonsoft.Json;
+using Nostr.Client.Json;
+
+namespace NostrRelay;
+
+public static class Extensions
+{
+    public static void MapRelay<TRelay>(this WebApplication app, string path,
+        RelayDocument? document = null,
+        string? landingPage = null)
+        where TRelay : INostrRelay, IDisposable
+    {
+        app.MapGet(path, async ctx =>
+        {
+            if (ctx.WebSockets.IsWebSocketRequest)
+            {
+                var logger = app.Services.GetRequiredService<ILogger<NostrRelay<TRelay>>>();
+                using var handler = app.Services.GetRequiredService<TRelay>();
+                try
+                {
+                    var ws = await ctx.WebSockets.AcceptWebSocketAsync();
+                    var wsCtx = new NostrClientContext(ws, ctx.Connection.RemoteIpAddress!,
+                        ctx.Request.Headers.UserAgent.FirstOrDefault() ?? string.Empty);
+
+                    var nostrRelay = new NostrRelay<TRelay>(handler, wsCtx, ctx.RequestAborted, logger);
+
+                    await nostrRelay.Read();
+
+                    await ws.CloseAsync(WebSocketCloseStatus.NormalClosure, null, ctx.RequestAborted);
+                }
+                catch (Exception ex)
+                {
+                    logger.LogDebug(ex.Message);
+                }
+            }
+            else
+            {
+                var isRelayDocRequest = ctx.Request.Headers.Accept.FirstOrDefault()
+                    ?.Equals("application/nostr+json", StringComparison.InvariantCultureIgnoreCase) ?? false;
+
+                if (isRelayDocRequest)
+                {
+                    var doc = document ?? new RelayDocument
+                    {
+                        Name = typeof(TRelay).Name,
+                        Description = "NostrServices C# Relay Framework",
+                        Pubkey = "63fe6318dc58583cfe16810f86dd09e18bfd76aabc24a0081ce2856f330504ed",
+                        SupportedNips = [1],
+                        Software = "NostrServices",
+                        Icon = "https://void.cat/d/CtXsF5EvqNLG3K85TgezCt.webp",
+                        Limitation = new()
+                        {
+                            RestrictedWrites = false,
+                            AuthRequired = false,
+                            PaymentRequired = false
+                        }
+                    };
+
+                    ctx.Response.ContentType = "application/json";
+                    await ctx.Response.WriteAsync(JsonConvert.SerializeObject(doc, NostrSerializer.Settings));
+                }
+                else
+                {
+                    ctx.Response.ContentType = "text/html";
+                    await ctx.Response.WriteAsync(landingPage ?? @$"
+<html>
+<head>
+<title>NostrServices Relay</title>
+</head>
+<body>
+<h1>Welcome to {typeof(TRelay).Name}</h1>
+</body>
+</html>
+");
+                }
+            }
+        });
+    }
+}