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Fix YouTube & Vimeo video embedding #223

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Merged
eXpl0it3r merged 2 commits into from
Dec 9, 2025
Merged

Fix YouTube & Vimeo video embedding #223

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f2c9f45
Fix YouTube video embedding
eXpl0it3r Dec 9, 2025
8d16489
Fix Vimeo video embedding
eXpl0it3r Dec 9, 2025
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3 changes: 2 additions & 1 deletion Source/Demo/Common/Samples/06.Embeded video.htm
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Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,8 @@ <h3>
<h2>
Example
</h2>
<iframe height="360" width="480" src="https://www.youtube.com/embed/2l_PmSOreGc" />
<iframe height="360" width="480" src="https://www.youtube.com/embed/2l_PmSOreGc" /><br /><br />
<iframe height="270" width="480" src="https://player.vimeo.com/video/170338499" />
</blockquote>
</body>
</html>
152 changes: 83 additions & 69 deletions Source/HtmlRenderer/Core/Dom/CssBoxFrame.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -146,7 +146,7 @@ private void LoadYoutubeDataAsync(Uri uri)
{
try
{
var apiUri = new Uri(string.Format("https://gdata.youtube.com/feeds/api/videos/{0}?v=2&alt=json", uri.Segments[2]));
var apiUri = new Uri(string.Format("https://www.youtube.com/oembed?url=https://www.youtube.com/watch?v={0}&format=json", uri.Segments[2]));

var client = new WebClient();
client.Encoding = Encoding.UTF8;
Expand All @@ -172,89 +172,93 @@ private void OnDownloadYoutubeApiCompleted(object sender, DownloadStringComplete
{
if (e.Error == null)
{
var idx = e.Result.IndexOf("\"media$title\"", StringComparison.Ordinal);
var idx = e.Result.IndexOf("\"title\"", StringComparison.Ordinal);
if (idx > -1)
{
idx = e.Result.IndexOf("\"$t\"", idx);
idx = e.Result.IndexOf('"', idx + 7);
if (idx > -1)
{
idx = e.Result.IndexOf('"', idx + 4);
if (idx > -1)
var endIdx = e.Result.IndexOf('"', idx + 1);
while (endIdx > 0 && e.Result[endIdx - 1] == '\\')
endIdx = e.Result.IndexOf('"', endIdx + 1);
if (endIdx > -1)
{
var endIdx = e.Result.IndexOf('"', idx + 1);
while (e.Result[endIdx - 1] == '\\')
endIdx = e.Result.IndexOf('"', endIdx + 1);
if (endIdx > -1)
{
_videoTitle = e.Result.Substring(idx + 1, endIdx - idx - 1).Replace("\\\"", "\"");
}
_videoTitle = e.Result.Substring(idx + 1, endIdx - idx - 1).Replace("\\\"", "\"");
}
}
}

idx = e.Result.IndexOf("\"media$thumbnail\"", StringComparison.Ordinal);
idx = e.Result.IndexOf("\"thumbnail_url\"", StringComparison.Ordinal);
if (idx > -1)
{
var iidx = e.Result.IndexOf("sddefault", idx);
if (iidx > -1)
{
if (string.IsNullOrEmpty(Width))
Width = "640px";
if (string.IsNullOrEmpty(Height))
Height = "480px";
}
else
idx = e.Result.IndexOf('"', idx + 15);
if (idx > -1)
{
iidx = e.Result.IndexOf("hqdefault", idx);
if (iidx > -1)
var endIdx = e.Result.IndexOf('"', idx + 1);
while (endIdx > 0 && e.Result[endIdx - 1] == '\\')
endIdx = e.Result.IndexOf('"', endIdx + 1);
if (endIdx > -1)
{
if (string.IsNullOrEmpty(Width))
Width = "480px";
if (string.IsNullOrEmpty(Height))
Height = "360px";
_videoImageUrl = e.Result.Substring(idx + 1, endIdx - idx - 1).Replace("\\\"", "\"");
}
else
}

idx = e.Result.IndexOf("\"thumbnail_width\"", StringComparison.Ordinal);
if (idx > -1)
{
idx = e.Result.IndexOf(':', idx);
if (idx > -1)
{
iidx = e.Result.IndexOf("mqdefault", idx);
if (iidx > -1)
{
if (string.IsNullOrEmpty(Width))
Width = "320px";
if (string.IsNullOrEmpty(Height))
Height = "180px";
}
else
var endIdx = e.Result.IndexOf(',', idx);
if (endIdx > -1)
{
iidx = e.Result.IndexOf("default", idx);
if (string.IsNullOrEmpty(Width))
Width = "120px";
if (string.IsNullOrEmpty(Height))
Height = "90px";
var widthStr = e.Result.Substring(idx + 1, endIdx - idx - 1).Trim();
if (int.TryParse(widthStr, out int width))
{
if (string.IsNullOrEmpty(Width))
Width = width + "px";
}
}
}
}

iidx = e.Result.LastIndexOf("http:", iidx, StringComparison.Ordinal);
if (iidx > -1)
idx = e.Result.IndexOf("\"thumbnail_height\"", StringComparison.Ordinal);
if (idx > -1)
{
var endIdx = e.Result.IndexOf('"', iidx);
if (endIdx > -1)
idx = e.Result.IndexOf(':', idx);
if (idx > -1)
{
_videoImageUrl = e.Result.Substring(iidx, endIdx - iidx).Replace("\\\"", "\"").Replace("\\", "");
var endIdx = e.Result.IndexOf(',', idx);
if (endIdx == -1)
endIdx = e.Result.IndexOf('}', idx);
if (endIdx > -1)
{
var heightStr = e.Result.Substring(idx + 1, endIdx - idx - 1).Trim();
if (int.TryParse(heightStr, out int height))
{
if (string.IsNullOrEmpty(Height))
Height = height + "px";
}
}
}
}
}

idx = e.Result.IndexOf("\"link\"", StringComparison.Ordinal);
idx = e.Result.IndexOf("\"html\"", StringComparison.Ordinal);
if (idx > -1)
{
idx = e.Result.IndexOf("http:", idx);
idx = e.Result.IndexOf("src=", idx);
if (idx > -1)
{
var endIdx = e.Result.IndexOf('"', idx);
if (endIdx > -1)
idx = e.Result.IndexOf("embed/", idx);
if (idx > -1)
{
_videoLinkUrl = e.Result.Substring(idx, endIdx - idx).Replace("\\\"", "\"").Replace("\\", "");
var endIdx = e.Result.IndexOf('?', idx);
if (endIdx > -1)
{
var videoId = e.Result.Substring(idx + 6, endIdx - idx - 6);
_videoLinkUrl = "https://www.youtube.com/watch?v=" + videoId;
}
}
}
}
Expand Down Expand Up @@ -317,7 +321,7 @@ private void OnDownloadVimeoApiCompleted(object sender, DownloadStringCompletedE
if (idx > -1)
{
var endIdx = e.Result.IndexOf('"', idx + 1);
while (e.Result[endIdx - 1] == '\\')
while (endIdx > 0 && e.Result[endIdx - 1] == '\\')
endIdx = e.Result.IndexOf('"', endIdx + 1);
if (endIdx > -1)
{
Expand All @@ -333,49 +337,59 @@ private void OnDownloadVimeoApiCompleted(object sender, DownloadStringCompletedE
Width = "640";
if (string.IsNullOrEmpty(Height))
Height = "360";
var urlIdx = e.Result.IndexOf("\"https:\\/\\/", idx);
if (urlIdx != -1)
idx = urlIdx;
}
else
{
idx = e.Result.IndexOf("thumbnail_medium", idx);
idx = e.Result.IndexOf("\"thumbnail_medium\"", StringComparison.Ordinal);
if (idx > -1)
{
if (string.IsNullOrEmpty(Width))
Width = "200";
if (string.IsNullOrEmpty(Height))
Height = "150";
var urlIdx = e.Result.IndexOf("\"https:\\/\\/", idx);
if (urlIdx != -1)
idx = urlIdx;
}
else
{
idx = e.Result.IndexOf("thumbnail_small", idx);
if (string.IsNullOrEmpty(Width))
Width = "100";
if (string.IsNullOrEmpty(Height))
Height = "75";
idx = e.Result.IndexOf("\"thumbnail_small\"", StringComparison.Ordinal);
if (idx > -1)
{
if (string.IsNullOrEmpty(Width))
Width = "100";
if (string.IsNullOrEmpty(Height))
Height = "75";
var urlIdx = e.Result.IndexOf("\"https:\\/\\/", idx);
if (urlIdx != -1)
idx = urlIdx;
}
}
}
if (idx > -1)
{
idx = e.Result.IndexOf("http:", idx);
if (idx > -1)
idx = idx + 1;
var endIdx = e.Result.IndexOf('"', idx);
if (endIdx > -1)
{
var endIdx = e.Result.IndexOf('"', idx);
if (endIdx > -1)
{
_videoImageUrl = e.Result.Substring(idx, endIdx - idx).Replace("\\\"", "\"").Replace("\\", "");
}
_videoImageUrl = e.Result.Substring(idx, endIdx - idx).Replace("\\/", "/");
}
}

idx = e.Result.IndexOf("\"url\"", StringComparison.Ordinal);
if (idx > -1)
{
idx = e.Result.IndexOf("http:", idx);
idx = e.Result.IndexOf("\"https:\\/\\/", idx);
if (idx > -1)
{
idx = idx + 1;
var endIdx = e.Result.IndexOf('"', idx);
if (endIdx > -1)
{
_videoLinkUrl = e.Result.Substring(idx, endIdx - idx).Replace("\\\"", "\"").Replace("\\", "");
_videoLinkUrl = e.Result.Substring(idx, endIdx - idx).Replace("\\/", "/");
}
}
}
Expand Down
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