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fix: bypass YouTube consent redirects #171

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Merged
vycdev merged 1 commit into from
Aug 29, 2026
Merged

fix: bypass YouTube consent redirects #171

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10 changes: 5 additions & 5 deletions Morpheus.Tests/YoutubeUtilsTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -41,12 +41,12 @@ await Assert.ThrowsAnyAsync<OperationCanceledException>(() =>
}

[Theory]
[InlineData("https://www.youtube.com/@channel", "/@channel", "")]
[InlineData("youtube.com/user/channel", "/user/channel", "")]
[InlineData("https://m.youtube.com/c/channel?feature=share", "/c/channel", "")]
[InlineData("https://music.youtube.com/@channel", "/@channel", "")]
[InlineData("https://www.youtube.com/@channel", "/@channel", "?cbrd=1&ucbcb=1")]
[InlineData("youtube.com/user/channel", "/user/channel", "?cbrd=1&ucbcb=1")]
[InlineData("https://m.youtube.com/c/channel?feature=share", "/c/channel", "?cbrd=1&ucbcb=1")]
[InlineData("https://music.youtube.com/@channel", "/@channel", "?cbrd=1&ucbcb=1")]
[InlineData("https://youtu.be/dQw4w9WgXcQ?si=tracking", "/watch", "?v=dQw4w9WgXcQ")]
[InlineData("@channel", "/@channel", "")]
[InlineData("@channel", "/@channel", "?cbrd=1&ucbcb=1")]
public async Task ResolveChannelIdAsync_RequestsCanonicalYoutubeUrls(
string input,
string expectedPath,
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9 changes: 5 additions & 4 deletions Utilities/YoutubeUtils.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@ public static partial class YoutubeUtils
{
private const string BrowserUserAgent =
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0 Safari/537.36";
private const string YouTubeConsentBypassQuery = "?cbrd=1&ucbcb=1";

[GeneratedRegex("^UC[0-9A-Za-z_-]{22}$")]
private static partial Regex ChannelIdRegex();
Expand Down Expand Up @@ -130,15 +131,15 @@ public static partial class YoutubeUtils
if (!IsYoutubeHost(uri.Host) || !IsSupportedYoutubePath(uri.AbsolutePath))
return null;

// Canonicalize the host and discard user-controlled query/fragment values. The
// resolver only needs the channel path to scrape the corresponding YouTube page.
return new Uri($"https://www.youtube.com{uri.AbsolutePath}");
// cbrd/ucbcb keeps unauthenticated server-side requests on the channel page
// instead of redirecting them to YouTube's consent page.
return new Uri($"https://www.youtube.com{uri.AbsolutePath}{YouTubeConsentBypassQuery}");
}

private static Uri? BuildHandleUri(string handle) =>
string.IsNullOrWhiteSpace(handle) || handle.Contains('/')
? null
: new Uri($"https://www.youtube.com/@{Uri.EscapeDataString(handle)}");
: new Uri($"https://www.youtube.com/@{Uri.EscapeDataString(handle)}{YouTubeConsentBypassQuery}");

private static bool IsYoutubeHost(string host) =>
host.Equals("youtube.com", StringComparison.OrdinalIgnoreCase) ||
Expand Down