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Shadowghost
2022-10-14 10:25:57 +02:00
parent 7b90fcd053
commit 4aec41752f
5 changed files with 92 additions and 38 deletions
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54
MediaBrowser.Common/Net/NetworkExtensions.cs
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@@ -138,7 +138,7 @@ namespace MediaBrowser.Common.Net
/// <summary>
/// Try parsing an array of strings into subnets, respecting exclusions.
/// </summary>
/// <param name="values">Input string to be parsed.</param>
/// <param name="values">Input string array to be parsed.</param>
/// <param name="result">Collection of <see cref="IPNetwork"/>.</param>
/// <param name="negated">Boolean signaling if negated or not negated values should be parsed.</param>
/// <returns><c>True</c> if parsing was successful.</returns>
@@ -190,6 +190,58 @@ namespace MediaBrowser.Common.Net
return false;
}
/// <summary>
/// Try parsing a string into a subnet, respecting exclusions.
/// </summary>
/// <param name="value">Input string to be parsed.</param>
/// <param name="result">An <see cref="IPNetwork"/>.</param>
/// <param name="negated">Boolean signaling if negated or not negated values should be parsed.</param>
/// <returns><c>True</c> if parsing was successful.</returns>
public static bool TryParseSubnet(string value, out IPNetwork? result, bool negated = false)
{
result = null;
if (string.IsNullOrEmpty(value))
{
return false;
}
string[] v = value.Trim().Split("/");
var address = IPAddress.None;
if (negated && v[0].StartsWith('!'))
{
_ = IPAddress.TryParse(v[0][1..], out address);
}
else if (!negated)
{
_ = IPAddress.TryParse(v[0][0..], out address);
}
if (address != IPAddress.None && address != null)
{
if (int.TryParse(v[1], out var netmask))
{
result = new IPNetwork(address, netmask);
}
else if (address.AddressFamily == AddressFamily.InterNetwork)
{
result = new IPNetwork(address, 32);
}
else if (address.AddressFamily == AddressFamily.InterNetworkV6)
{
result = new IPNetwork(address, 128);
}
}
if (result != null)
{
return true;
}
return false;
}
/// <summary>
/// Attempts to parse a host string.
/// </summary>