Server 2.10.3: browse the MSCO mod list in the web panel

Mods -> MSCO mod list: search the approved mods from msco.mbm.wtf/mods and add or update one with a click. The server lists and downloads only from the official keymaster (never from a URL in the answer), checks the SHA-256 and stores it in data/mods like an uploaded mod. Admins only. 6 new tests (154 pass). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-03 18:08:37 +02:00
parent 266a462fc3
commit d946c95198
7 changed files with 228 additions and 2 deletions
@@ -0,0 +1,81 @@
+using System.Net.Http.Json;
+using System.Security.Cryptography;
+using System.Text.Json.Serialization;
+
+namespace MSCO.Server;
+
+/// <summary>
+/// Mod-Liste des Keymasters (msco.mbm.wtf/mods: Mods von Spielern, von MSCO-Admins geprüft) im Web-Panel durchsuchen
+/// und mit einem Klick als Server-Mod übernehmen. Geladen wird nur vom offiziellen Master, die SHA-256 wird geprüft;
+/// danach liegt die Mod wie eine hochgeladene in data/mods (Datei &lt;id&gt;.dll).
+/// </summary>
+public static class ModCatalog
+{
+    public sealed record Entry(
+        [property: JsonPropertyName("id")] string Id,
+        [property: JsonPropertyName("name")] string Name,
+        [property: JsonPropertyName("description")] string Description,
+        [property: JsonPropertyName("author")] string Author,
+        [property: JsonPropertyName("version")] string Version,
+        [property: JsonPropertyName("sha256")] string Sha256,
+        [property: JsonPropertyName("size")] long Size,
+        [property: JsonPropertyName("changelog")] string Changelog,
+        [property: JsonPropertyName("updatedUtc")] string UpdatedUtc,
+        [property: JsonPropertyName("downloads")] int Downloads);
+
+    record ListResponse([property: JsonPropertyName("mods")] List<Entry> Mods);
+
+    static readonly HttpClient http = CreateHttp();
+
+    /// <summary>Adresse der Mod-Liste: der offizielle Master (nur die Tests setzen hier einen eigenen).</summary>
+    public static string BaseUrl { get; set; } = MasterServer.Url;
+
+    static HttpClient CreateHttp()
+    {
+        var c = new HttpClient { Timeout = TimeSpan.FromSeconds(20) };
+        c.DefaultRequestHeaders.UserAgent.ParseAdd("MSCO-Server");
+        return c;
+    }
+
+    /// <summary>Freigegebene Mods vom Keymaster. Wirft bei Netzwerkfehlern.</summary>
+    public static async Task<List<Entry>> ListAsync()
+    {
+        var res = await http.GetFromJsonAsync<ListResponse>(BaseUrl + "/api/mods");
+        return res?.Mods ?? new List<Entry>();
+    }
+
+    /// <summary>Mod aus der Liste in data/mods übernehmen (bzw. aktualisieren). Fehlertext oder null.</summary>
+    public static async Task<string> InstallAsync(string dataDir, string id)
+    {
+        List<Entry> list;
+        try { list = await ListAsync(); }
+        catch (Exception e) { return "The MSCO mod list is not reachable (" + e.Message + ")"; }
+        var entry = list.FirstOrDefault(m => m.Id == id);
+        if (entry == null) return "This mod is not in the MSCO mod list (any more)";
+        if (entry.Size > ModStore.MaxModBytes) return "This mod is too large";
+
+        // Immer vom offiziellen Master laden - nie von einer Adresse aus der Antwort
+        string url = BaseUrl + "/mods/download/" + Uri.EscapeDataString(entry.Id) + "/" + Uri.EscapeDataString(entry.Version);
+        byte[] data;
+        try
+        {
+            using var res = await http.GetAsync(url, HttpCompletionOption.ResponseHeadersRead);
+            if (!res.IsSuccessStatusCode) return "Download failed (HTTP " + (int)res.StatusCode + ")";
+            await using var stream = await res.Content.ReadAsStreamAsync();
+            using var ms = new MemoryStream();
+            var chunk = new byte[81920];
+            int read;
+            while ((read = await stream.ReadAsync(chunk)) > 0)
+            {
+                ms.Write(chunk, 0, read);
+                if (ms.Length > ModStore.MaxModBytes) return "This mod is too large";
+            }
+            data = ms.ToArray();
+        }
+        catch (Exception e) { return "Download failed (" + e.Message + ")"; }
+
+        string sha = Convert.ToHexString(SHA256.HashData(data)).ToLowerInvariant();
+        if (!string.Equals(sha, entry.Sha256, StringComparison.OrdinalIgnoreCase)) return "The download is damaged (checksum mismatch) - try again";
+        return ModStore.Add(dataDir, entry.Id + ".dll", data);
+    }
+}