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Fix negated IP addresses without subnet mask not being parsed correctly (#13854)

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This commit is contained in:
Markus Prettner
2025-04-09 03:21:57 +02:00
committed by GitHub
parent 0bbc6bb31d
commit c152f610ce
2 changed files with 20 additions and 6 deletions
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21
MediaBrowser.Common/Net/NetworkUtils.cs
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@@ -198,14 +198,25 @@ public static partial class NetworkUtils
/// <returns><c>True</c> if parsing was successful.</returns>
public static bool TryParseToSubnet(ReadOnlySpan<char> value, [NotNullWhen(true)] out IPNetwork? result, bool negated = false)
{
// If multiple IP addresses are in a comma-separated string, the individual addresses may contain leading and/or trailing whitespace
value = value.Trim();
bool isAddressNegated = false;
if (value.StartsWith('!'))
{
isAddressNegated = true;
value = value[1..]; // Remove leading '!' character
}
if (isAddressNegated != negated)
{
result = null;
return false;
}
if (value.Contains('/'))
{
if (negated && value.StartsWith("!") && IPNetwork.TryParse(value[1..], out result))
{
return true;
}
else if (!negated && IPNetwork.TryParse(value, out result))
if (IPNetwork.TryParse(value, out result))
{
return true;
}