feat: resolve player display names from Steam persona (Steam Web API)

Accounts were created as 'Unknown' and the client never sends a name, so the admin panel / friends / squad showed no names. Add SteamWebApiService (GetPlayerSummaries), wired into LoginWithSteam to backfill the DisplayName from the Steam persona when it's still 'Unknown'. Admin gets a LAN-only /admin/backfill-names action (+ button) to backfill existing accounts in one shot. Key read from config SteamWebApiKey (Vault -> env), inert when unset. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-15 10:25:52 +02:00
parent b8d023b02a
commit 4614b135a1
4 changed files with 113 additions and 3 deletions
@@ -0,0 +1,55 @@
+using System.Text.Json;
+
+namespace Prospect.Server.Api.Services.Steam;
+
+// Resolves a Steam persona (display) name from a SteamID64 via the Steam Web API.
+// PlayFab does this server-side too; our emulator only gets the SteamID from the auth
+// ticket, so the real name needs an API key. Inert (no-op) when no key is configured.
+public class SteamWebApiService
+{
+    private static readonly HttpClient Http = new() { Timeout = TimeSpan.FromSeconds(5) };
+
+    private readonly string? _apiKey;
+    private readonly ILogger<SteamWebApiService> _logger;
+
+    public SteamWebApiService(IConfiguration configuration, ILogger<SteamWebApiService> logger)
+    {
+        _apiKey = configuration["SteamWebApiKey"];
+        _logger = logger;
+    }
+
+    public bool Enabled => !string.IsNullOrWhiteSpace(_apiKey);
+
+    public async Task<string?> GetPersonaNameAsync(string steamId64)
+    {
+        if (!Enabled)
+        {
+            return null;
+        }
+
+        try
+        {
+            var url = $"https://api.steampowered.com/ISteamUser/GetPlayerSummaries/v2/?key={_apiKey}&steamids={steamId64}";
+            var json = await Http.GetStringAsync(url);
+            using var doc = JsonDocument.Parse(json);
+            if (doc.RootElement.TryGetProperty("response", out var response) &&
+                response.TryGetProperty("players", out var players) &&
+                players.ValueKind == JsonValueKind.Array)
+            {
+                foreach (var player in players.EnumerateArray())
+                {
+                    if (player.TryGetProperty("personaname", out var name))
+                    {
+                        return name.GetString();
+                    }
+                }
+            }
+        }
+        catch (Exception e)
+        {
+            _logger.LogWarning(e, "Steam GetPlayerSummaries failed for {SteamId}", steamId64);
+        }
+
+        return null;
+    }
+}