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Move subnet parser to NetworkExtensions

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Shadowghost 2022-07-20 09:45:57 +02:00
parent daf33143f6
commit 64ffd5fd95
2 changed files with 62 additions and 68 deletions
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72
Jellyfin.Networking/Manager/NetworkManager.cs
View file

@ -326,8 +326,8 @@ namespace Jellyfin.Networking.Manager
// Get configuration options
string[] subnets = config.LocalNetworkSubnets;
_ = TryParseSubnets(subnets, out _lanSubnets, false);
_ = TryParseSubnets(subnets, out _excludedSubnets, true);
_ = NetworkExtensions.TryParseSubnets(subnets, out _lanSubnets, false);
_ = NetworkExtensions.TryParseSubnets(subnets, out _excludedSubnets, true);
if (_lanSubnets.Count == 0)
{
@ -419,7 +419,7 @@ namespace Jellyfin.Networking.Manager
if (remoteIPFilter.Any() && !string.IsNullOrWhiteSpace(remoteIPFilter.First()))
{
// Parse all IPs with netmask to a subnet
_ = TryParseSubnets(remoteIPFilter.Where(x => x.Contains('/', StringComparison.OrdinalIgnoreCase)).ToArray(), out _remoteAddressFilter, false);
_ = NetworkExtensions.TryParseSubnets(remoteIPFilter.Where(x => x.Contains('/', StringComparison.OrdinalIgnoreCase)).ToArray(), out _remoteAddressFilter, false);
// Parse everything else as an IP and construct subnet with a single IP
var ips = remoteIPFilter.Where(x => !x.Contains('/', StringComparison.OrdinalIgnoreCase));
@ -595,68 +595,6 @@ namespace Jellyfin.Networking.Manager
return false;
}
/// <summary>
/// Try parsing an array of strings into subnets, respecting exclusions.
/// </summary>
/// <param name="values">Input string 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>
public bool TryParseSubnets(string[] values, out Collection<IPNetwork> result, bool negated = false)
{
result = new Collection<IPNetwork>();
if (values == null || values.Length == 0)
{
return false;
}
for (int a = 0; a < values.Length; a++)
{
string[] v = values[a].Trim().Split("/");
try
{
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.Add(new IPNetwork(address, netmask));
}
else if (address.AddressFamily == AddressFamily.InterNetwork)
{
result.Add(new IPNetwork(address, 32));
}
else if (address.AddressFamily == AddressFamily.InterNetworkV6)
{
result.Add(new IPNetwork(address, 128));
}
}
}
catch (ArgumentException e)
{
_logger.LogWarning(e, "Ignoring LAN value {Value}.", v);
}
}
if (result.Count > 0)
{
return true;
}
return false;
}
/// <inheritdoc/>
public bool HasRemoteAccess(IPAddress remoteIp)
{
@ -802,12 +740,12 @@ namespace Jellyfin.Networking.Manager
if (source != null)
{
if (IsIpv4Enabled && source.AddressFamily == AddressFamily.InterNetworkV6)
if (IsIpv4Enabled && !IsIpv6Enabled && source.AddressFamily == AddressFamily.InterNetworkV6)
{
_logger.LogWarning("IPv6 is disabled in Jellyfin, but enabled in the OS. This may affect how the interface is selected.");
}
if (IsIpv6Enabled && source.AddressFamily == AddressFamily.InterNetwork)
if (!IsIpv4Enabled && IsIpv6Enabled && source.AddressFamily == AddressFamily.InterNetwork)
{
_logger.LogWarning("IPv4 is disabled in Jellyfin, but enabled in the OS. This may affect how the interface is selected.");
}

58
MediaBrowser.Common/Net/NetworkExtensions.cs
View file

@ -1,5 +1,6 @@
using Microsoft.AspNetCore.HttpOverrides;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics.CodeAnalysis;
using System.Net;
using System.Net.Sockets;
@ -136,6 +137,61 @@ namespace MediaBrowser.Common.Net
return str;
}
/// <summary>
/// Try parsing an array of strings into subnets, respecting exclusions.
/// </summary>
/// <param name="values">Input string 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>
public static bool TryParseSubnets(string[] values, out Collection<IPNetwork> result, bool negated = false)
{
result = new Collection<IPNetwork>();
if (values == null || values.Length == 0)
{
return false;
}
for (int a = 0; a < values.Length; a++)
{
string[] v = values[a].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.Add(new IPNetwork(address, netmask));
}
else if (address.AddressFamily == AddressFamily.InterNetwork)
{
result.Add(new IPNetwork(address, 32));
}
else if (address.AddressFamily == AddressFamily.InterNetworkV6)
{
result.Add(new IPNetwork(address, 128));
}
}
}
if (result.Count > 0)
{
return true;
}
return false;
}
/// <summary>
/// Attempts to parse a host string.
/// </summary>