Claus Vium
4 years ago
committed by
GitHub
commit
dca3f62ff8
@ -0,0 +1,36 @@
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name: "CodeQL"
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on:
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push:
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branches: [ master ]
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pull_request:
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branches: [ master ]
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schedule:
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- cron: '24 2 * * 4'
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jobs:
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analyze:
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name: Analyze
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runs-on: ubuntu-latest
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strategy:
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fail-fast: false
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matrix:
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language: [ 'csharp' ]
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steps:
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- name: Checkout repository
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uses: actions/checkout@v2
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- name: Setup .NET Core
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uses: actions/setup-dotnet@v1
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with:
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dotnet-version: '5.0.100'
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- name: Initialize CodeQL
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uses: github/codeql-action/init@v1
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with:
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languages: ${{ matrix.language }}
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queries: +security-extended
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- name: Autobuild
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uses: github/codeql-action/autobuild@v1
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- name: Perform CodeQL Analysis
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uses: github/codeql-action/analyze@v1
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@ -1,556 +0,0 @@
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#pragma warning disable CS1591
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Net.Sockets;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Net;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.Networking
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{
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/// <summary>
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/// Class to take care of network interface management.
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/// </summary>
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public class NetworkManager : INetworkManager
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{
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private readonly ILogger<NetworkManager> _logger;
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private IPAddress[] _localIpAddresses;
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private readonly object _localIpAddressSyncLock = new object();
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private readonly object _subnetLookupLock = new object();
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private readonly Dictionary<string, List<string>> _subnetLookup = new Dictionary<string, List<string>>(StringComparer.Ordinal);
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private List<PhysicalAddress> _macAddresses;
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/// <summary>
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/// Initializes a new instance of the <see cref="NetworkManager"/> class.
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/// </summary>
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/// <param name="logger">Logger to use for messages.</param>
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public NetworkManager(ILogger<NetworkManager> logger)
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{
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_logger = logger;
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NetworkChange.NetworkAddressChanged += OnNetworkAddressChanged;
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NetworkChange.NetworkAvailabilityChanged += OnNetworkAvailabilityChanged;
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}
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/// <inheritdoc/>
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public event EventHandler NetworkChanged;
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/// <inheritdoc/>
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public Func<string[]> LocalSubnetsFn { get; set; }
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private void OnNetworkAvailabilityChanged(object sender, NetworkAvailabilityEventArgs e)
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{
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_logger.LogDebug("NetworkAvailabilityChanged");
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OnNetworkChanged();
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}
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private void OnNetworkAddressChanged(object sender, EventArgs e)
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{
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_logger.LogDebug("NetworkAddressChanged");
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OnNetworkChanged();
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}
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private void OnNetworkChanged()
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{
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lock (_localIpAddressSyncLock)
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{
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_localIpAddresses = null;
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_macAddresses = null;
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}
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NetworkChanged?.Invoke(this, EventArgs.Empty);
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}
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/// <inheritdoc/>
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public IPAddress[] GetLocalIpAddresses()
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{
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lock (_localIpAddressSyncLock)
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{
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if (_localIpAddresses == null)
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{
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var addresses = GetLocalIpAddressesInternal().ToArray();
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_localIpAddresses = addresses;
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}
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return _localIpAddresses;
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}
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}
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private List<IPAddress> GetLocalIpAddressesInternal()
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{
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var list = GetIPsDefault().ToList();
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if (list.Count == 0)
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{
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list = GetLocalIpAddressesFallback().GetAwaiter().GetResult().ToList();
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}
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var listClone = new List<IPAddress>();
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var subnets = LocalSubnetsFn();
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foreach (var i in list)
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{
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if (i.IsIPv6LinkLocal || i.ToString().StartsWith("169.254.", StringComparison.OrdinalIgnoreCase))
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{
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continue;
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}
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if (Array.IndexOf(subnets, $"[{i}]") == -1)
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{
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listClone.Add(i);
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}
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}
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return listClone
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.OrderBy(i => i.AddressFamily == AddressFamily.InterNetwork ? 0 : 1)
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// .ThenBy(i => listClone.IndexOf(i))
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.GroupBy(i => i.ToString())
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.Select(x => x.First())
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.ToList();
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}
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/// <inheritdoc/>
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public bool IsInPrivateAddressSpace(string endpoint)
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{
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return IsInPrivateAddressSpace(endpoint, true);
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}
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// Checks if the address in endpoint is an RFC1918, RFC1122, or RFC3927 address
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private bool IsInPrivateAddressSpace(string endpoint, bool checkSubnets)
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{
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if (string.Equals(endpoint, "::1", StringComparison.OrdinalIgnoreCase))
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{
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return true;
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}
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// IPV6
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if (endpoint.Split('.').Length > 4)
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{
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// Handle ipv4 mapped to ipv6
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var originalEndpoint = endpoint;
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endpoint = endpoint.Replace("::ffff:", string.Empty, StringComparison.OrdinalIgnoreCase);
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if (string.Equals(endpoint, originalEndpoint, StringComparison.OrdinalIgnoreCase))
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{
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return false;
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}
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}
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// Private address space:
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if (string.Equals(endpoint, "localhost", StringComparison.OrdinalIgnoreCase))
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{
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return true;
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}
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if (!IPAddress.TryParse(endpoint, out var ipAddress))
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{
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return false;
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}
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byte[] octet = ipAddress.GetAddressBytes();
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if ((octet[0] == 10) ||
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(octet[0] == 172 && (octet[1] >= 16 && octet[1] <= 31)) || // RFC1918
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(octet[0] == 192 && octet[1] == 168) || // RFC1918
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(octet[0] == 127) || // RFC1122
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(octet[0] == 169 && octet[1] == 254)) // RFC3927
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{
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return true;
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}
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if (checkSubnets && IsInPrivateAddressSpaceAndLocalSubnet(endpoint))
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{
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return true;
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}
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return false;
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}
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/// <inheritdoc/>
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public bool IsInPrivateAddressSpaceAndLocalSubnet(string endpoint)
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{
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if (endpoint.StartsWith("10.", StringComparison.OrdinalIgnoreCase))
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{
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var endpointFirstPart = endpoint.Split('.')[0];
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var subnets = GetSubnets(endpointFirstPart);
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foreach (var subnet_Match in subnets)
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{
|
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// logger.LogDebug("subnet_Match:" + subnet_Match);
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||||
if (endpoint.StartsWith(subnet_Match + ".", StringComparison.OrdinalIgnoreCase))
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{
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return true;
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}
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}
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}
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return false;
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}
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// Gives a list of possible subnets from the system whose interface ip starts with endpointFirstPart
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private List<string> GetSubnets(string endpointFirstPart)
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{
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lock (_subnetLookupLock)
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{
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if (_subnetLookup.TryGetValue(endpointFirstPart, out var subnets))
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{
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return subnets;
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}
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subnets = new List<string>();
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foreach (var adapter in NetworkInterface.GetAllNetworkInterfaces())
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{
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foreach (var unicastIPAddressInformation in adapter.GetIPProperties().UnicastAddresses)
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{
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if (unicastIPAddressInformation.Address.AddressFamily == AddressFamily.InterNetwork && endpointFirstPart == unicastIPAddressInformation.Address.ToString().Split('.')[0])
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{
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int subnet_Test = 0;
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foreach (string part in unicastIPAddressInformation.IPv4Mask.ToString().Split('.'))
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{
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if (part.Equals("0", StringComparison.Ordinal))
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{
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break;
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}
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subnet_Test++;
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}
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var subnet_Match = string.Join(".", unicastIPAddressInformation.Address.ToString().Split('.').Take(subnet_Test).ToArray());
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// TODO: Is this check necessary?
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if (adapter.OperationalStatus == OperationalStatus.Up)
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{
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subnets.Add(subnet_Match);
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}
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}
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}
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}
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_subnetLookup[endpointFirstPart] = subnets;
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return subnets;
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}
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}
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/// <inheritdoc/>
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public bool IsInLocalNetwork(string endpoint)
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{
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return IsInLocalNetworkInternal(endpoint, true);
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}
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/// <inheritdoc/>
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public bool IsAddressInSubnets(string addressString, string[] subnets)
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{
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return IsAddressInSubnets(IPAddress.Parse(addressString), addressString, subnets);
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}
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/// <inheritdoc/>
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public bool IsAddressInSubnets(IPAddress address, bool excludeInterfaces, bool excludeRFC)
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{
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byte[] octet = address.GetAddressBytes();
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if ((octet[0] == 127) || // RFC1122
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(octet[0] == 169 && octet[1] == 254)) // RFC3927
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{
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// don't use on loopback or 169 interfaces
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return false;
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}
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string addressString = address.ToString();
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string excludeAddress = "[" + addressString + "]";
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var subnets = LocalSubnetsFn();
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// Include any address if LAN subnets aren't specified
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if (subnets.Length == 0)
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{
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return true;
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}
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// Exclude any addresses if they appear in the LAN list in [ ]
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if (Array.IndexOf(subnets, excludeAddress) != -1)
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{
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return false;
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}
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return IsAddressInSubnets(address, addressString, subnets);
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}
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/// <summary>
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/// Checks if the give address falls within the ranges given in [subnets]. The addresses in subnets can be hosts or subnets in the CIDR format.
|
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/// </summary>
|
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/// <param name="address">IPAddress version of the address.</param>
|
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/// <param name="addressString">The address to check.</param>
|
||||
/// <param name="subnets">If true, check against addresses in the LAN settings which have [] arroud and return true if it matches the address give in address.</param>
|
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/// <returns><c>false</c>if the address isn't in the subnets, <c>true</c> otherwise.</returns>
|
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private static bool IsAddressInSubnets(IPAddress address, string addressString, string[] subnets)
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{
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foreach (var subnet in subnets)
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{
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var normalizedSubnet = subnet.Trim();
|
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// Is the subnet a host address and does it match the address being passes?
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if (string.Equals(normalizedSubnet, addressString, StringComparison.OrdinalIgnoreCase))
|
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{
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return true;
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}
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// Parse CIDR subnets and see if address falls within it.
|
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if (normalizedSubnet.Contains('/', StringComparison.Ordinal))
|
||||
{
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||||
try
|
||||
{
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var ipNetwork = IPNetwork.Parse(normalizedSubnet);
|
||||
if (ipNetwork.Contains(address))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
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catch
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{
|
||||
// Ignoring - invalid subnet passed encountered.
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
private bool IsInLocalNetworkInternal(string endpoint, bool resolveHost)
|
||||
{
|
||||
if (string.IsNullOrEmpty(endpoint))
|
||||
{
|
||||
throw new ArgumentNullException(nameof(endpoint));
|
||||
}
|
||||
|
||||
if (IPAddress.TryParse(endpoint, out var address))
|
||||
{
|
||||
var addressString = address.ToString();
|
||||
|
||||
var localSubnetsFn = LocalSubnetsFn;
|
||||
if (localSubnetsFn != null)
|
||||
{
|
||||
var localSubnets = localSubnetsFn();
|
||||
foreach (var subnet in localSubnets)
|
||||
{
|
||||
// Only validate if there's at least one valid entry.
|
||||
if (!string.IsNullOrWhiteSpace(subnet))
|
||||
{
|
||||
return IsAddressInSubnets(address, addressString, localSubnets) || IsInPrivateAddressSpace(addressString, false);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int lengthMatch = 100;
|
||||
if (address.AddressFamily == AddressFamily.InterNetwork)
|
||||
{
|
||||
lengthMatch = 4;
|
||||
if (IsInPrivateAddressSpace(addressString, true))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
else if (address.AddressFamily == AddressFamily.InterNetworkV6)
|
||||
{
|
||||
lengthMatch = 9;
|
||||
if (IsInPrivateAddressSpace(endpoint, true))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
// Should be even be doing this with ipv6?
|
||||
if (addressString.Length >= lengthMatch)
|
||||
{
|
||||
var prefix = addressString.Substring(0, lengthMatch);
|
||||
|
||||
if (GetLocalIpAddresses().Any(i => i.ToString().StartsWith(prefix, StringComparison.OrdinalIgnoreCase)))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (resolveHost)
|
||||
{
|
||||
if (Uri.TryCreate(endpoint, UriKind.RelativeOrAbsolute, out var uri))
|
||||
{
|
||||
try
|
||||
{
|
||||
var host = uri.DnsSafeHost;
|
||||
_logger.LogDebug("Resolving host {0}", host);
|
||||
|
||||
address = GetIpAddresses(host).GetAwaiter().GetResult().FirstOrDefault();
|
||||
|
||||
if (address != null)
|
||||
{
|
||||
_logger.LogDebug("{0} resolved to {1}", host, address);
|
||||
|
||||
return IsInLocalNetworkInternal(address.ToString(), false);
|
||||
}
|
||||
}
|
||||
catch (InvalidOperationException)
|
||||
{
|
||||
// Can happen with reverse proxy or IIS url rewriting?
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "Error resolving hostname");
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
private static Task<IPAddress[]> GetIpAddresses(string hostName)
|
||||
{
|
||||
return Dns.GetHostAddressesAsync(hostName);
|
||||
}
|
||||
|
||||
private IEnumerable<IPAddress> GetIPsDefault()
|
||||
{
|
||||
IEnumerable<NetworkInterface> interfaces;
|
||||
|
||||
try
|
||||
{
|
||||
interfaces = NetworkInterface.GetAllNetworkInterfaces()
|
||||
.Where(x => x.OperationalStatus == OperationalStatus.Up
|
||||
|| x.OperationalStatus == OperationalStatus.Unknown);
|
||||
}
|
||||
catch (NetworkInformationException ex)
|
||||
{
|
||||
_logger.LogError(ex, "Error in GetAllNetworkInterfaces");
|
||||
return Enumerable.Empty<IPAddress>();
|
||||
}
|
||||
|
||||
return interfaces.SelectMany(network =>
|
||||
{
|
||||
var ipProperties = network.GetIPProperties();
|
||||
|
||||
// Exclude any addresses if they appear in the LAN list in [ ]
|
||||
|
||||
return ipProperties.UnicastAddresses
|
||||
.Select(i => i.Address)
|
||||
.Where(i => i.AddressFamily == AddressFamily.InterNetwork || i.AddressFamily == AddressFamily.InterNetworkV6);
|
||||
}).GroupBy(i => i.ToString())
|
||||
.Select(x => x.First());
|
||||
}
|
||||
|
||||
private static async Task<IEnumerable<IPAddress>> GetLocalIpAddressesFallback()
|
||||
{
|
||||
var host = await Dns.GetHostEntryAsync(Dns.GetHostName()).ConfigureAwait(false);
|
||||
|
||||
// Reverse them because the last one is usually the correct one
|
||||
// It's not fool-proof so ultimately the consumer will have to examine them and decide
|
||||
return host.AddressList
|
||||
.Where(i => i.AddressFamily == AddressFamily.InterNetwork || i.AddressFamily == AddressFamily.InterNetworkV6)
|
||||
.Reverse();
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets a random port number that is currently available.
|
||||
/// </summary>
|
||||
/// <returns>System.Int32.</returns>
|
||||
public int GetRandomUnusedTcpPort()
|
||||
{
|
||||
var listener = new TcpListener(IPAddress.Any, 0);
|
||||
listener.Start();
|
||||
var port = ((IPEndPoint)listener.LocalEndpoint).Port;
|
||||
listener.Stop();
|
||||
return port;
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public int GetRandomUnusedUdpPort()
|
||||
{
|
||||
var localEndPoint = new IPEndPoint(IPAddress.Any, 0);
|
||||
using (var udpClient = new UdpClient(localEndPoint))
|
||||
{
|
||||
return ((IPEndPoint)udpClient.Client.LocalEndPoint).Port;
|
||||
}
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public List<PhysicalAddress> GetMacAddresses()
|
||||
{
|
||||
return _macAddresses ??= GetMacAddressesInternal().ToList();
|
||||
}
|
||||
|
||||
private static IEnumerable<PhysicalAddress> GetMacAddressesInternal()
|
||||
=> NetworkInterface.GetAllNetworkInterfaces()
|
||||
.Where(i => i.NetworkInterfaceType != NetworkInterfaceType.Loopback)
|
||||
.Select(x => x.GetPhysicalAddress())
|
||||
.Where(x => !x.Equals(PhysicalAddress.None));
|
||||
|
||||
/// <inheritdoc/>
|
||||
public bool IsInSameSubnet(IPAddress address1, IPAddress address2, IPAddress subnetMask)
|
||||
{
|
||||
IPAddress network1 = GetNetworkAddress(address1, subnetMask);
|
||||
IPAddress network2 = GetNetworkAddress(address2, subnetMask);
|
||||
return network1.Equals(network2);
|
||||
}
|
||||
|
||||
private IPAddress GetNetworkAddress(IPAddress address, IPAddress subnetMask)
|
||||
{
|
||||
byte[] ipAdressBytes = address.GetAddressBytes();
|
||||
byte[] subnetMaskBytes = subnetMask.GetAddressBytes();
|
||||
|
||||
if (ipAdressBytes.Length != subnetMaskBytes.Length)
|
||||
{
|
||||
throw new ArgumentException("Lengths of IP address and subnet mask do not match.");
|
||||
}
|
||||
|
||||
byte[] broadcastAddress = new byte[ipAdressBytes.Length];
|
||||
for (int i = 0; i < broadcastAddress.Length; i++)
|
||||
{
|
||||
broadcastAddress[i] = (byte)(ipAdressBytes[i] & subnetMaskBytes[i]);
|
||||
}
|
||||
|
||||
return new IPAddress(broadcastAddress);
|
||||
}
|
||||
|
||||
/// <inheritdoc/>
|
||||
public IPAddress GetLocalIpSubnetMask(IPAddress address)
|
||||
{
|
||||
NetworkInterface[] interfaces;
|
||||
|
||||
try
|
||||
{
|
||||
var validStatuses = new[] { OperationalStatus.Up, OperationalStatus.Unknown };
|
||||
|
||||
interfaces = NetworkInterface.GetAllNetworkInterfaces()
|
||||
.Where(i => validStatuses.Contains(i.OperationalStatus))
|
||||
.ToArray();
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "Error in GetAllNetworkInterfaces");
|
||||
return null;
|
||||
}
|
||||
|
||||
foreach (NetworkInterface ni in interfaces)
|
||||
{
|
||||
foreach (UnicastIPAddressInformation ip in ni.GetIPProperties().UnicastAddresses)
|
||||
{
|
||||
if (ip.Address.Equals(address) && ip.IPv4Mask != null)
|
||||
{
|
||||
return ip.IPv4Mask;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return null;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1,45 +0,0 @@
|
||||
#pragma warning disable CS1591
|
||||
|
||||
using System;
|
||||
using System.IO;
|
||||
using MediaBrowser.Controller;
|
||||
using MediaBrowser.Controller.Net;
|
||||
using MediaBrowser.Model.IO;
|
||||
using Microsoft.Extensions.Logging;
|
||||
|
||||
namespace Emby.Server.Implementations
|
||||
{
|
||||
public class ResourceFileManager : IResourceFileManager
|
||||
{
|
||||
private readonly IFileSystem _fileSystem;
|
||||
private readonly ILogger<ResourceFileManager> _logger;
|
||||
|
||||
public ResourceFileManager(ILogger<ResourceFileManager> logger, IFileSystem fileSystem)
|
||||
{
|
||||
_logger = logger;
|
||||
_fileSystem = fileSystem;
|
||||
}
|
||||
|
||||
public string GetResourcePath(string basePath, string virtualPath)
|
||||
{
|
||||
var fullPath = Path.Combine(basePath, virtualPath.Replace('/', Path.DirectorySeparatorChar));
|
||||
|
||||
try
|
||||
{
|
||||
fullPath = Path.GetFullPath(fullPath);
|
||||
}
|
||||
catch (Exception ex)
|
||||
{
|
||||
_logger.LogError(ex, "Error retrieving full path");
|
||||
}
|
||||
|
||||
// Don't allow file system access outside of the source folder
|
||||
if (!_fileSystem.ContainsSubPath(basePath, fullPath))
|
||||
{
|
||||
throw new SecurityException("Access denied");
|
||||
}
|
||||
|
||||
return fullPath;
|
||||
}
|
||||
}
|
||||
}
|
||||
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