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Fix link header parsing to handle unquoted rel types (#15973)

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Steven Liekens 2021-08-27 00:11:15 +02:00 committed by GitHub
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src/Microsoft.PowerShell.Commands.Utility/commands/utility/WebCmdlet/Common/WebRequestPSCmdlet.Common.cs
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@ -1830,7 +1830,7 @@ namespace Microsoft.PowerShell.Commands
// we only support the URL in angle brackets and `rel`, other attributes are ignored
// user can still parse it themselves via the Headers property
const string pattern = "<(?<url>.*?)>;\\s*rel=(\"?)(?<rel>.*?)\\1[^\\w -.]?";
const string pattern = "<(?<url>.*?)>;\\s*rel=(?<quoted>\")?(?<rel>(?(quoted).*?|[^,;]*))(?(quoted)\")";
IEnumerable<string> links;
if (response.Headers.TryGetValues("Link", out links))
{