feat(net): server registry, bootstrap servers, peer discovery

2026-06-11 11:27:14 +02:00
parent 34c588c6f4
commit 1c2dacc27c
5 changed files with 264 additions and 2 deletions
@@ -0,0 +1,97 @@
+using System.Text.Json;
+using PalladiumWallet.Core.Chain;
+using PalladiumWallet.Core.Net;
+
+namespace PalladiumWallet.Tests.Net;
+
+public class PeerParsingTests
+{
+    [Fact]
+    public void La_risposta_peers_subscribe_si_parsa_nel_formato_electrumx()
+    {
+        // Formato reale: [ip, hostname, ["v...", "pN", "tPORTA", "sPORTA"]].
+        const string json = """
+            [
+              ["173.212.224.67", "173.212.224.67", ["v1.4.2", "p10000", "t50001", "s50002"]],
+              ["10.0.0.1", "nodo.esempio.org", ["v1.4", "t"]],
+              ["10.0.0.2", "solo-ssl.esempio.org", ["v1.4", "s50002"]],
+              ["10.0.0.3", "senza-porte.esempio.org", ["v1.4"]]
+            ]
+            """;
+        var peers = ElectrumApi.ParsePeers(JsonDocument.Parse(json).RootElement);
+
+        Assert.Equal(3, peers.Count); // l'ultimo non offre porte → scartato
+
+        Assert.Equal(new PeerInfo("173.212.224.67", 50001, 50002, "1.4.2"), peers[0]);
+        // "t" senza numero = porta di default (0 segnala "da risolvere col profilo").
+        Assert.Equal(new PeerInfo("nodo.esempio.org", 0, null, "1.4"), peers[1]);
+        Assert.Equal(new PeerInfo("solo-ssl.esempio.org", null, 50002, "1.4"), peers[2]);
+    }
+}
+
+public class ServerRegistryTests
+{
+    private static string TempPath() =>
+        Path.Combine(Path.GetTempPath(), $"plm-servers-{Guid.NewGuid()}.json");
+
+    [Fact]
+    public void Il_registro_parte_dai_bootstrap_del_profilo()
+    {
+        var path = TempPath();
+        var registry = new ServerRegistry(ChainProfiles.Mainnet, path);
+
+        Assert.Equal(ChainProfiles.Mainnet.BootstrapServers.Count, registry.All.Count);
+        Assert.Equal("173.212.224.67", registry.Default!.Host);
+        Assert.Equal(50001, registry.Default.PortFor(useSsl: false));
+        Assert.Equal(50002, registry.Default.PortFor(useSsl: true));
+    }
+
+    [Fact]
+    public void I_peer_scoperti_si_aggiungono_e_persistono_senza_duplicati()
+    {
+        var path = TempPath();
+        try
+        {
+            var registry = new ServerRegistry(ChainProfiles.Mainnet, path);
+            var bootstrapCount = registry.All.Count;
+
+            // Merge diretto via DiscoverAsync richiede un client: si testa la
+            // persistenza simulando il file degli scoperti.
+            var discovered = new[] { new KnownServer("nuovo.esempio.org", 50001, 50002, "1.4.2") };
+            File.WriteAllText(path, JsonSerializer.Serialize(discovered));
+
+            var reloaded = new ServerRegistry(ChainProfiles.Mainnet, path);
+            Assert.Equal(bootstrapCount + 1, reloaded.All.Count);
+            Assert.Contains(reloaded.All, s => s.Host == "nuovo.esempio.org");
+
+            // Un bootstrap duplicato nel file non raddoppia.
+            File.WriteAllText(path, JsonSerializer.Serialize(new[]
+            {
+                new KnownServer("173.212.224.67", 50001, 50002),
+                new KnownServer("nuovo.esempio.org", 50001, 50002),
+            }));
+            var deduped = new ServerRegistry(ChainProfiles.Mainnet, path);
+            Assert.Equal(bootstrapCount + 1, deduped.All.Count);
+        }
+        finally
+        {
+            File.Delete(path);
+        }
+    }
+
+    [Fact]
+    public void Un_file_server_corrotto_non_blocca_l_avvio()
+    {
+        var path = TempPath();
+        try
+        {
+            File.WriteAllText(path, "{ non-json ");
+            var registry = new ServerRegistry(ChainProfiles.Mainnet, path);
+            Assert.Equal(ChainProfiles.Mainnet.BootstrapServers.Count, registry.All.Count);
+        }
+        finally
+        {
+            File.Delete(path);
+        }
+    }
+}