Move network utilities to MediaBrowser.Common

pull/10574/head
Patrick Barron 7 months ago
parent 223b156270
commit 9595636d61

@ -10,7 +10,6 @@ using System.Threading.Tasks;
using Emby.Dlna.PlayTo; using Emby.Dlna.PlayTo;
using Emby.Dlna.Ssdp; using Emby.Dlna.Ssdp;
using Jellyfin.Networking.Configuration; using Jellyfin.Networking.Configuration;
using Jellyfin.Networking.Extensions;
using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Extensions; using MediaBrowser.Common.Extensions;
using MediaBrowser.Common.Net; using MediaBrowser.Common.Net;
@ -280,7 +279,7 @@ public sealed class DlnaHost : IHostedService, IDisposable
CacheLifetime = TimeSpan.FromSeconds(1800), // How long SSDP clients can cache this info. CacheLifetime = TimeSpan.FromSeconds(1800), // How long SSDP clients can cache this info.
Location = uri.Uri, // Must point to the URL that serves your devices UPnP description document. Location = uri.Uri, // Must point to the URL that serves your devices UPnP description document.
Address = intf.Address, Address = intf.Address,
PrefixLength = NetworkExtensions.MaskToCidr(intf.Subnet.Prefix), PrefixLength = NetworkUtils.MaskToCidr(intf.Subnet.Prefix),
FriendlyName = "Jellyfin", FriendlyName = "Jellyfin",
Manufacturer = "Jellyfin", Manufacturer = "Jellyfin",
ModelName = "Jellyfin Server", ModelName = "Jellyfin Server",

@ -7,7 +7,6 @@ using System.Threading;
using System.Threading.Tasks; using System.Threading.Tasks;
using Emby.Server.Implementations.Udp; using Emby.Server.Implementations.Udp;
using Jellyfin.Networking.Configuration; using Jellyfin.Networking.Configuration;
using Jellyfin.Networking.Extensions;
using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net; using MediaBrowser.Common.Net;
using MediaBrowser.Controller; using MediaBrowser.Controller;
@ -92,7 +91,7 @@ namespace Emby.Server.Implementations.EntryPoints
var validInterfaces = _networkManager.GetInternalBindAddresses().Where(i => i.AddressFamily == AddressFamily.InterNetwork); var validInterfaces = _networkManager.GetInternalBindAddresses().Where(i => i.AddressFamily == AddressFamily.InterNetwork);
foreach (var intf in validInterfaces) foreach (var intf in validInterfaces)
{ {
var broadcastAddress = NetworkExtensions.GetBroadcastAddress(intf.Subnet); var broadcastAddress = NetworkUtils.GetBroadcastAddress(intf.Subnet);
_logger.LogDebug("Binding UDP server to {Address} on port {PortNumber}", broadcastAddress, PortNumber); _logger.LogDebug("Binding UDP server to {Address} on port {PortNumber}", broadcastAddress, PortNumber);
server = new UdpServer(_logger, _appHost, _config, broadcastAddress, PortNumber); server = new UdpServer(_logger, _appHost, _config, broadcastAddress, PortNumber);

@ -8,7 +8,6 @@ using System.Net.NetworkInformation;
using System.Net.Sockets; using System.Net.Sockets;
using System.Threading; using System.Threading;
using Jellyfin.Networking.Configuration; using Jellyfin.Networking.Configuration;
using Jellyfin.Networking.Extensions;
using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net; using MediaBrowser.Common.Net;
using MediaBrowser.Model.Net; using MediaBrowser.Model.Net;
@ -318,7 +317,7 @@ namespace Jellyfin.Networking.Manager
var subnets = config.LocalNetworkSubnets; var subnets = config.LocalNetworkSubnets;
// If no LAN addresses are specified, all private subnets and Loopback are deemed to be the LAN // If no LAN addresses are specified, all private subnets and Loopback are deemed to be the LAN
if (!NetworkExtensions.TryParseToSubnets(subnets, out var lanSubnets, false) || lanSubnets.Count == 0) if (!NetworkUtils.TryParseToSubnets(subnets, out var lanSubnets, false) || lanSubnets.Count == 0)
{ {
_logger.LogDebug("Using LAN interface addresses as user provided no LAN details."); _logger.LogDebug("Using LAN interface addresses as user provided no LAN details.");
@ -345,7 +344,7 @@ namespace Jellyfin.Networking.Manager
_lanSubnets = lanSubnets; _lanSubnets = lanSubnets;
} }
_excludedSubnets = NetworkExtensions.TryParseToSubnets(subnets, out var excludedSubnets, true) _excludedSubnets = NetworkUtils.TryParseToSubnets(subnets, out var excludedSubnets, true)
? excludedSubnets ? excludedSubnets
: new List<IPNetwork>(); : new List<IPNetwork>();
} }
@ -363,7 +362,7 @@ namespace Jellyfin.Networking.Manager
var localNetworkAddresses = config.LocalNetworkAddresses; var localNetworkAddresses = config.LocalNetworkAddresses;
if (localNetworkAddresses.Length > 0 && !string.IsNullOrWhiteSpace(localNetworkAddresses[0])) if (localNetworkAddresses.Length > 0 && !string.IsNullOrWhiteSpace(localNetworkAddresses[0]))
{ {
var bindAddresses = localNetworkAddresses.Select(p => NetworkExtensions.TryParseToSubnet(p, out var network) var bindAddresses = localNetworkAddresses.Select(p => NetworkUtils.TryParseToSubnet(p, out var network)
? network.Prefix ? network.Prefix
: (interfaces.Where(x => x.Name.Equals(p, StringComparison.OrdinalIgnoreCase)) : (interfaces.Where(x => x.Name.Equals(p, StringComparison.OrdinalIgnoreCase))
.Select(x => x.Address) .Select(x => x.Address)
@ -430,7 +429,7 @@ namespace Jellyfin.Networking.Manager
// Parse all IPs with netmask to a subnet // Parse all IPs with netmask to a subnet
var remoteAddressFilter = new List<IPNetwork>(); var remoteAddressFilter = new List<IPNetwork>();
var remoteFilteredSubnets = remoteIPFilter.Where(x => x.Contains('/', StringComparison.OrdinalIgnoreCase)).ToArray(); var remoteFilteredSubnets = remoteIPFilter.Where(x => x.Contains('/', StringComparison.OrdinalIgnoreCase)).ToArray();
if (NetworkExtensions.TryParseToSubnets(remoteFilteredSubnets, out var remoteAddressFilterResult, false)) if (NetworkUtils.TryParseToSubnets(remoteFilteredSubnets, out var remoteAddressFilterResult, false))
{ {
remoteAddressFilter = remoteAddressFilterResult.ToList(); remoteAddressFilter = remoteAddressFilterResult.ToList();
} }
@ -541,7 +540,7 @@ namespace Jellyfin.Networking.Manager
false)); false));
} }
} }
else if (NetworkExtensions.TryParseToSubnet(identifier, out var result) && result is not null) else if (NetworkUtils.TryParseToSubnet(identifier, out var result) && result is not null)
{ {
var data = new IPData(result.Prefix, result); var data = new IPData(result.Prefix, result);
publishedServerUrls.Add( publishedServerUrls.Add(
@ -607,7 +606,7 @@ namespace Jellyfin.Networking.Manager
foreach (var details in interfaceList) foreach (var details in interfaceList)
{ {
var parts = details.Split(','); var parts = details.Split(',');
if (NetworkExtensions.TryParseToSubnet(parts[0], out var subnet)) if (NetworkUtils.TryParseToSubnet(parts[0], out var subnet))
{ {
var address = subnet.Prefix; var address = subnet.Prefix;
var index = int.Parse(parts[1], CultureInfo.InvariantCulture); var index = int.Parse(parts[1], CultureInfo.InvariantCulture);
@ -771,7 +770,7 @@ namespace Jellyfin.Networking.Manager
/// <inheritdoc/> /// <inheritdoc/>
public string GetBindAddress(string source, out int? port) public string GetBindAddress(string source, out int? port)
{ {
if (!NetworkExtensions.TryParseHost(source, out var addresses, IsIPv4Enabled, IsIPv6Enabled)) if (!NetworkUtils.TryParseHost(source, out var addresses, IsIPv4Enabled, IsIPv6Enabled))
{ {
addresses = Array.Empty<IPAddress>(); addresses = Array.Empty<IPAddress>();
} }
@ -846,7 +845,7 @@ namespace Jellyfin.Networking.Manager
// If no source address is given, use the preferred (first) interface // If no source address is given, use the preferred (first) interface
if (source is null) if (source is null)
{ {
result = NetworkExtensions.FormatIPString(availableInterfaces.First().Address); result = NetworkUtils.FormatIPString(availableInterfaces.First().Address);
_logger.LogDebug("{Source}: Using first internal interface as bind address: {Result}", source, result); _logger.LogDebug("{Source}: Using first internal interface as bind address: {Result}", source, result);
return result; return result;
} }
@ -857,14 +856,14 @@ namespace Jellyfin.Networking.Manager
{ {
if (intf.Subnet.Contains(source)) if (intf.Subnet.Contains(source))
{ {
result = NetworkExtensions.FormatIPString(intf.Address); result = NetworkUtils.FormatIPString(intf.Address);
_logger.LogDebug("{Source}: Found interface with matching subnet, using it as bind address: {Result}", source, result); _logger.LogDebug("{Source}: Found interface with matching subnet, using it as bind address: {Result}", source, result);
return result; return result;
} }
} }
// Fallback to first available interface // Fallback to first available interface
result = NetworkExtensions.FormatIPString(availableInterfaces[0].Address); result = NetworkUtils.FormatIPString(availableInterfaces[0].Address);
_logger.LogDebug("{Source}: No matching interfaces found, using preferred interface as bind address: {Result}", source, result); _logger.LogDebug("{Source}: No matching interfaces found, using preferred interface as bind address: {Result}", source, result);
return result; return result;
} }
@ -881,12 +880,12 @@ namespace Jellyfin.Networking.Manager
/// <inheritdoc/> /// <inheritdoc/>
public bool IsInLocalNetwork(string address) public bool IsInLocalNetwork(string address)
{ {
if (NetworkExtensions.TryParseToSubnet(address, out var subnet)) if (NetworkUtils.TryParseToSubnet(address, out var subnet))
{ {
return IPAddress.IsLoopback(subnet.Prefix) || (_lanSubnets.Any(x => x.Contains(subnet.Prefix)) && !_excludedSubnets.Any(x => x.Contains(subnet.Prefix))); return IPAddress.IsLoopback(subnet.Prefix) || (_lanSubnets.Any(x => x.Contains(subnet.Prefix)) && !_excludedSubnets.Any(x => x.Contains(subnet.Prefix)));
} }
if (NetworkExtensions.TryParseHost(address, out var addresses, IsIPv4Enabled, IsIPv6Enabled)) if (NetworkUtils.TryParseHost(address, out var addresses, IsIPv4Enabled, IsIPv6Enabled))
{ {
foreach (var ept in addresses) foreach (var ept in addresses)
{ {
@ -1044,7 +1043,7 @@ namespace Jellyfin.Networking.Manager
.Select(x => x.Address) .Select(x => x.Address)
.First(); .First();
result = NetworkExtensions.FormatIPString(bindAddress); result = NetworkUtils.FormatIPString(bindAddress);
_logger.LogDebug("{Source}: External request received, matching external bind address found: {Result}", source, result); _logger.LogDebug("{Source}: External request received, matching external bind address found: {Result}", source, result);
return true; return true;
} }
@ -1063,7 +1062,7 @@ namespace Jellyfin.Networking.Manager
if (bindAddress is not null) if (bindAddress is not null)
{ {
result = NetworkExtensions.FormatIPString(bindAddress); result = NetworkUtils.FormatIPString(bindAddress);
_logger.LogDebug("{Source}: Internal request received, matching internal bind address found: {Result}", source, result); _logger.LogDebug("{Source}: Internal request received, matching internal bind address found: {Result}", source, result);
return true; return true;
} }
@ -1097,14 +1096,14 @@ namespace Jellyfin.Networking.Manager
{ {
if (intf.Subnet.Contains(source)) if (intf.Subnet.Contains(source))
{ {
result = NetworkExtensions.FormatIPString(intf.Address); result = NetworkUtils.FormatIPString(intf.Address);
_logger.LogDebug("{Source}: Found external interface with matching subnet, using it as bind address: {Result}", source, result); _logger.LogDebug("{Source}: Found external interface with matching subnet, using it as bind address: {Result}", source, result);
return true; return true;
} }
} }
// Fallback to first external interface. // Fallback to first external interface.
result = NetworkExtensions.FormatIPString(extResult[0].Address); result = NetworkUtils.FormatIPString(extResult[0].Address);
_logger.LogDebug("{Source}: Using first external interface as bind address: {Result}", source, result); _logger.LogDebug("{Source}: Using first external interface as bind address: {Result}", source, result);
return true; return true;
} }

@ -21,7 +21,6 @@ using Jellyfin.Api.ModelBinders;
using Jellyfin.Data.Enums; using Jellyfin.Data.Enums;
using Jellyfin.Extensions.Json; using Jellyfin.Extensions.Json;
using Jellyfin.Networking.Configuration; using Jellyfin.Networking.Configuration;
using Jellyfin.Networking.Extensions;
using Jellyfin.Server.Configuration; using Jellyfin.Server.Configuration;
using Jellyfin.Server.Filters; using Jellyfin.Server.Filters;
using MediaBrowser.Common.Net; using MediaBrowser.Common.Net;
@ -277,14 +276,14 @@ namespace Jellyfin.Server.Extensions
{ {
AddIPAddress(config, options, addr, addr.AddressFamily == AddressFamily.InterNetwork ? NetworkConstants.MinimumIPv4PrefixSize : NetworkConstants.MinimumIPv6PrefixSize); AddIPAddress(config, options, addr, addr.AddressFamily == AddressFamily.InterNetwork ? NetworkConstants.MinimumIPv4PrefixSize : NetworkConstants.MinimumIPv6PrefixSize);
} }
else if (NetworkExtensions.TryParseToSubnet(allowedProxies[i], out var subnet)) else if (NetworkUtils.TryParseToSubnet(allowedProxies[i], out var subnet))
{ {
if (subnet is not null) if (subnet is not null)
{ {
AddIPAddress(config, options, subnet.Prefix, subnet.PrefixLength); AddIPAddress(config, options, subnet.Prefix, subnet.PrefixLength);
} }
} }
else if (NetworkExtensions.TryParseHost(allowedProxies[i], out var addresses, config.EnableIPv4, config.EnableIPv6)) else if (NetworkUtils.TryParseHost(allowedProxies[i], out var addresses, config.EnableIPv4, config.EnableIPv6))
{ {
foreach (var address in addresses) foreach (var address in addresses)
{ {

@ -5,15 +5,14 @@ using System.Net;
using System.Net.Sockets; using System.Net.Sockets;
using System.Text.RegularExpressions; using System.Text.RegularExpressions;
using Jellyfin.Extensions; using Jellyfin.Extensions;
using MediaBrowser.Common.Net;
using Microsoft.AspNetCore.HttpOverrides; using Microsoft.AspNetCore.HttpOverrides;
namespace Jellyfin.Networking.Extensions; namespace MediaBrowser.Common.Net;
/// <summary> /// <summary>
/// Defines the <see cref="NetworkExtensions" />. /// Defines the <see cref="NetworkUtils" />.
/// </summary> /// </summary>
public static partial class NetworkExtensions public static partial class NetworkUtils
{ {
// Use regular expression as CheckHostName isn't RFC5892 compliant. // Use regular expression as CheckHostName isn't RFC5892 compliant.
// Modified from gSkinner's expression at https://stackoverflow.com/questions/11809631/fully-qualified-domain-name-validation // Modified from gSkinner's expression at https://stackoverflow.com/questions/11809631/fully-qualified-domain-name-validation
@ -224,7 +223,7 @@ public static partial class NetworkExtensions
} }
else if (IPAddress.TryParse(subnetBlock, out var netmaskAddress)) else if (IPAddress.TryParse(subnetBlock, out var netmaskAddress))
{ {
result = new IPNetwork(address, NetworkExtensions.MaskToCidr(netmaskAddress)); result = new IPNetwork(address, NetworkUtils.MaskToCidr(netmaskAddress));
return true; return true;
} }
} }

@ -1,6 +1,6 @@
using FsCheck; using FsCheck;
using FsCheck.Xunit; using FsCheck.Xunit;
using Jellyfin.Networking.Extensions; using MediaBrowser.Common.Net;
using Xunit; using Xunit;
namespace Jellyfin.Networking.Tests namespace Jellyfin.Networking.Tests
@ -26,15 +26,15 @@ namespace Jellyfin.Networking.Tests
[InlineData("192.168.1.2/255.255.255.0")] [InlineData("192.168.1.2/255.255.255.0")]
[InlineData("192.168.1.2/24")] [InlineData("192.168.1.2/24")]
public static void TryParse_ValidHostStrings_True(string address) public static void TryParse_ValidHostStrings_True(string address)
=> Assert.True(NetworkExtensions.TryParseHost(address, out _, true, true)); => Assert.True(NetworkUtils.TryParseHost(address, out _, true, true));
[Property] [Property]
public static Property TryParse_IPv4Address_True(IPv4Address address) public static Property TryParse_IPv4Address_True(IPv4Address address)
=> NetworkExtensions.TryParseHost(address.Item.ToString(), out _, true, true).ToProperty(); => NetworkUtils.TryParseHost(address.Item.ToString(), out _, true, true).ToProperty();
[Property] [Property]
public static Property TryParse_IPv6Address_True(IPv6Address address) public static Property TryParse_IPv6Address_True(IPv6Address address)
=> NetworkExtensions.TryParseHost(address.Item.ToString(), out _, true, true).ToProperty(); => NetworkUtils.TryParseHost(address.Item.ToString(), out _, true, true).ToProperty();
/// <summary> /// <summary>
/// All should be invalid address strings. /// All should be invalid address strings.
@ -47,6 +47,6 @@ namespace Jellyfin.Networking.Tests
[InlineData("fd23:184f:2029:0:3139:7386:67d7:d517:1231")] [InlineData("fd23:184f:2029:0:3139:7386:67d7:d517:1231")]
[InlineData("[fd23:184f:2029:0:3139:7386:67d7:d517:1231]")] [InlineData("[fd23:184f:2029:0:3139:7386:67d7:d517:1231]")]
public static void TryParse_InvalidAddressString_False(string address) public static void TryParse_InvalidAddressString_False(string address)
=> Assert.False(NetworkExtensions.TryParseHost(address, out _, true, true)); => Assert.False(NetworkUtils.TryParseHost(address, out _, true, true));
} }
} }

@ -3,9 +3,9 @@ using System.Collections.Generic;
using System.Linq; using System.Linq;
using System.Net; using System.Net;
using Jellyfin.Networking.Configuration; using Jellyfin.Networking.Configuration;
using Jellyfin.Networking.Extensions;
using Jellyfin.Networking.Manager; using Jellyfin.Networking.Manager;
using MediaBrowser.Common.Configuration; using MediaBrowser.Common.Configuration;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Net; using MediaBrowser.Model.Net;
using Microsoft.Extensions.Configuration; using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging.Abstractions; using Microsoft.Extensions.Logging.Abstractions;
@ -80,7 +80,7 @@ namespace Jellyfin.Networking.Tests
[InlineData("[fe80::7add:12ff:febb:c67b%16]")] [InlineData("[fe80::7add:12ff:febb:c67b%16]")]
[InlineData("fd23:184f:2029:0:3139:7386:67d7:d517/56")] [InlineData("fd23:184f:2029:0:3139:7386:67d7:d517/56")]
public static void TryParseValidIPStringsTrue(string address) public static void TryParseValidIPStringsTrue(string address)
=> Assert.True(NetworkExtensions.TryParseToSubnet(address, out _)); => Assert.True(NetworkUtils.TryParseToSubnet(address, out _));
/// <summary> /// <summary>
/// Checks invalid IP address formats. /// Checks invalid IP address formats.
@ -93,7 +93,7 @@ namespace Jellyfin.Networking.Tests
[InlineData("fd23:184f:2029:0:3139:7386:67d7:d517:1231")] [InlineData("fd23:184f:2029:0:3139:7386:67d7:d517:1231")]
[InlineData("[fd23:184f:2029:0:3139:7386:67d7:d517:1231]")] [InlineData("[fd23:184f:2029:0:3139:7386:67d7:d517:1231]")]
public static void TryParseInvalidIPStringsFalse(string address) public static void TryParseInvalidIPStringsFalse(string address)
=> Assert.False(NetworkExtensions.TryParseToSubnet(address, out _)); => Assert.False(NetworkUtils.TryParseToSubnet(address, out _));
/// <summary> /// <summary>
/// Checks if IPv4 address is within a defined subnet. /// Checks if IPv4 address is within a defined subnet.
@ -113,7 +113,7 @@ namespace Jellyfin.Networking.Tests
public void IPv4SubnetMaskMatchesValidIPAddress(string netMask, string ipAddress) public void IPv4SubnetMaskMatchesValidIPAddress(string netMask, string ipAddress)
{ {
var ipa = IPAddress.Parse(ipAddress); var ipa = IPAddress.Parse(ipAddress);
Assert.True(NetworkExtensions.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress))); Assert.True(NetworkUtils.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress)));
} }
/// <summary> /// <summary>
@ -133,7 +133,7 @@ namespace Jellyfin.Networking.Tests
public void IPv4SubnetMaskDoesNotMatchInvalidIPAddress(string netMask, string ipAddress) public void IPv4SubnetMaskDoesNotMatchInvalidIPAddress(string netMask, string ipAddress)
{ {
var ipa = IPAddress.Parse(ipAddress); var ipa = IPAddress.Parse(ipAddress);
Assert.False(NetworkExtensions.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress))); Assert.False(NetworkUtils.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress)));
} }
/// <summary> /// <summary>
@ -149,7 +149,7 @@ namespace Jellyfin.Networking.Tests
[InlineData("2001:db8:abcd:0012::0/128", "2001:0DB8:ABCD:0012:0000:0000:0000:0000")] [InlineData("2001:db8:abcd:0012::0/128", "2001:0DB8:ABCD:0012:0000:0000:0000:0000")]
public void IPv6SubnetMaskMatchesValidIPAddress(string netMask, string ipAddress) public void IPv6SubnetMaskMatchesValidIPAddress(string netMask, string ipAddress)
{ {
Assert.True(NetworkExtensions.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress))); Assert.True(NetworkUtils.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress)));
} }
[Theory] [Theory]
@ -160,7 +160,7 @@ namespace Jellyfin.Networking.Tests
[InlineData("2001:db8:abcd:0012::0/128", "2001:0DB8:ABCD:0012:0000:0000:0000:0001")] [InlineData("2001:db8:abcd:0012::0/128", "2001:0DB8:ABCD:0012:0000:0000:0000:0001")]
public void IPv6SubnetMaskDoesNotMatchInvalidIPAddress(string netMask, string ipAddress) public void IPv6SubnetMaskDoesNotMatchInvalidIPAddress(string netMask, string ipAddress)
{ {
Assert.False(NetworkExtensions.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress))); Assert.False(NetworkUtils.TryParseToSubnet(netMask, out var subnet) && subnet.Contains(IPAddress.Parse(ipAddress)));
} }
[Theory] [Theory]
@ -207,7 +207,7 @@ namespace Jellyfin.Networking.Tests
NetworkManager.MockNetworkSettings = string.Empty; NetworkManager.MockNetworkSettings = string.Empty;
// Check to see if DNS resolution is working. If not, skip test. // Check to see if DNS resolution is working. If not, skip test.
if (!NetworkExtensions.TryParseHost(source, out var host)) if (!NetworkUtils.TryParseHost(source, out var host))
{ {
return; return;
} }

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