Social bar (Branch B): global resource with per-scene presence — Models/Socials.cs (19 services, icons, canonical URLs), Services/SocialValidator.cs (HTTP lookup validation seam), LayoutStore schema v7 (Socials + SocialEntry tables + Scene.HasSocialBar), MainViewModel (socials collection, AddSocial/RemoveSocial/ToggleSceneSocialBar commands, freemium cap YT+1, premium seam), MainWindow.xaml (footer Social button + [+/-] toggle on meter line, preview bar rendering top/bottom + LCR), 4 integration tests (roundtrip, empty-not-persisted, canonical URLs, icons), 85 tests passing, 0 warnings

2026-08-12 07:33:03 -07:00
parent e1d9e1388d
commit 5e8b8e5835
12 changed files with 715 additions and 17 deletions
@@ -0,0 +1,82 @@
+using System.Net.Http;
+using System.Threading;
+using System.Threading.Tasks;
+using ytLive.Models;
+
+namespace ytLive.Services;
+
+public sealed class SocialLookupResult
+{
+    public bool Success { get; init; }
+    public string ProfileUrl { get; init; } = string.Empty;
+    public string Handle { get; init; } = string.Empty;
+    public string Error { get; init; } = string.Empty;
+}
+
+public interface ISocialValidator
+{
+    Task<SocialLookupResult> LookupAsync(SocialService service, string handleOrUrl);
+}
+
+/// <summary>
+/// Validates a social handle/URL by constructing the canonical profile URL and
+/// issuing an HTTP GET — the "act of validation" the creator trusts before the
+/// icon lands on their bar. Best-effort: some platforms return challenges/blocks
+/// to HEAD requests, so a 200 OR a 301/302 redirect counts as "exists"; 404 or
+/// connection failure = rejected. Never blind trust.
+/// </summary>
+public sealed class HttpSocialValidator : ISocialValidator
+{
+    private readonly HttpClient _client;
+
+    public HttpSocialValidator(HttpClient? client = null)
+    {
+        _client = client ?? new HttpClient();
+        _client.DefaultRequestHeaders.UserAgent.ParseAdd(
+            "Mozilla/5.0 (compatible; ytLlive social validator)");
+    }
+
+    public async Task<SocialLookupResult> LookupAsync(SocialService service, string handleOrUrl)
+    {
+        var input = handleOrUrl.Trim();
+        if (string.IsNullOrWhiteSpace(input))
+            return new SocialLookupResult { Error = "Enter a handle or URL." };
+
+        var handle = input;
+        if (input.StartsWith("http://", System.StringComparison.OrdinalIgnoreCase) ||
+            input.StartsWith("https://", System.StringComparison.OrdinalIgnoreCase))
+        {
+            var uri = new System.Uri(input);
+            handle = uri.AbsolutePath.Trim('/');
+        }
+
+        var url = SocialServiceIcons.CanonicalUrlFor(service, handle);
+
+        try
+        {
+            using var resp = await _client.GetAsync(url, CancellationToken.None);
+            if (resp.IsSuccessStatusCode || (int)resp.StatusCode is 301 or 302 or 303 or 307 or 308)
+                return new SocialLookupResult
+                {
+                    Success = true,
+                    ProfileUrl = url,
+                    Handle = handle.TrimStart('@'),
+                };
+            return new SocialLookupResult
+            {
+                Error = $"{service} returned {resp.StatusCode} for '{handle}'. The handle may be wrong or the page doesn't exist.",
+            };
+        }
+        catch (System.Net.Http.HttpRequestException)
+        {
+            return new SocialLookupResult
+            {
+                Error = $"Couldn't reach {service} to validate '{handle}'. Check your connection and try again.",
+            };
+        }
+        catch (System.Exception ex)
+        {
+            return new SocialLookupResult { Error = ex.Message };
+        }
+    }
+}