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jellyfin/MediaBrowser.Networking/Management/NetworkManager.cs

378 lines
14 KiB

using MediaBrowser.Common.Net;
using MediaBrowser.Model.Net;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Management;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
namespace MediaBrowser.Networking.Management
{
/// <summary>
/// Class NetUtils
/// </summary>
public class NetworkManager : INetworkManager
{
/// <summary>
/// Gets the machine's local ip address
/// </summary>
/// <returns>IPAddress.</returns>
public string GetLocalIpAddress()
{
var host = Dns.GetHostEntry(Dns.GetHostName());
var ip = host.AddressList.FirstOrDefault(i => i.AddressFamily == AddressFamily.InterNetwork);
if (ip == null)
{
return null;
}
return ip.ToString();
}
/// <summary>
/// Gets a random port number that is currently available
/// </summary>
/// <returns>System.Int32.</returns>
public int GetRandomUnusedPort()
{
var listener = new TcpListener(IPAddress.Any, 0);
listener.Start();
var port = ((IPEndPoint)listener.LocalEndpoint).Port;
listener.Stop();
return port;
}
/// <summary>
/// Creates the netsh URL registration.
/// </summary>
public void AuthorizeHttpListening(string url)
{
var startInfo = new ProcessStartInfo
{
FileName = "netsh",
Arguments = string.Format("http add urlacl url={0} user=\"NT AUTHORITY\\Authenticated Users\"", url),
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
Verb = "runas",
ErrorDialog = false
};
using (var process = Process.Start(startInfo))
{
process.WaitForExit();
}
}
/// <summary>
/// Adds the windows firewall rule.
/// </summary>
/// <param name="port">The port.</param>
/// <param name="protocol">The protocol.</param>
public void AddSystemFirewallRule(int port, NetworkProtocol protocol)
{
// First try to remove it so we don't end up creating duplicates
RemoveSystemFirewallRule(port, protocol);
var args = string.Format("advfirewall firewall add rule name=\"Port {0}\" dir=in action=allow protocol={1} localport={0}", port, protocol);
RunNetsh(args);
}
/// <summary>
/// Removes the windows firewall rule.
/// </summary>
/// <param name="port">The port.</param>
/// <param name="protocol">The protocol.</param>
public void RemoveSystemFirewallRule(int port, NetworkProtocol protocol)
{
var args = string.Format("advfirewall firewall delete rule name=\"Port {0}\" protocol={1} localport={0}", port, protocol);
RunNetsh(args);
}
/// <summary>
/// Runs the netsh.
/// </summary>
/// <param name="args">The args.</param>
private void RunNetsh(string args)
{
var startInfo = new ProcessStartInfo
{
FileName = "netsh",
Arguments = args,
CreateNoWindow = true,
WindowStyle = ProcessWindowStyle.Hidden,
Verb = "runas",
ErrorDialog = false
};
using (var process = new Process { StartInfo = startInfo })
{
process.Start();
process.WaitForExit();
}
}
/// <summary>
/// Returns MAC Address from first Network Card in Computer
/// </summary>
/// <returns>[string] MAC Address</returns>
public string GetMacAddress()
{
var mc = new ManagementClass("Win32_NetworkAdapterConfiguration");
var moc = mc.GetInstances();
var macAddress = String.Empty;
foreach (ManagementObject mo in moc)
{
if (macAddress == String.Empty) // only return MAC Address from first card
{
try
{
if ((bool)mo["IPEnabled"]) macAddress = mo["MacAddress"].ToString();
}
catch
{
mo.Dispose();
return "";
}
}
mo.Dispose();
}
return macAddress.Replace(":", "");
}
/// <summary>
/// Uses the DllImport : NetServerEnum with all its required parameters
/// (see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
/// for full details or method signature) to retrieve a list of domain SV_TYPE_WORKSTATION
/// and SV_TYPE_SERVER PC's
/// </summary>
/// <returns>Arraylist that represents all the SV_TYPE_WORKSTATION and SV_TYPE_SERVER
/// PC's in the Domain</returns>
public IEnumerable<string> GetNetworkDevices()
{
//local fields
const int MAX_PREFERRED_LENGTH = -1;
var SV_TYPE_WORKSTATION = 1;
var SV_TYPE_SERVER = 2;
var buffer = IntPtr.Zero;
var tmpBuffer = IntPtr.Zero;
var entriesRead = 0;
var totalEntries = 0;
var resHandle = 0;
var sizeofINFO = Marshal.SizeOf(typeof(_SERVER_INFO_100));
try
{
//call the DllImport : NetServerEnum with all its required parameters
//see http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netserverenum.asp
//for full details of method signature
var ret = NativeMethods.NetServerEnum(null, 100, ref buffer, MAX_PREFERRED_LENGTH, out entriesRead, out totalEntries, SV_TYPE_WORKSTATION | SV_TYPE_SERVER, null, out resHandle);
//if the returned with a NERR_Success (C++ term), =0 for C#
if (ret == 0)
{
//loop through all SV_TYPE_WORKSTATION and SV_TYPE_SERVER PC's
for (var i = 0; i < totalEntries; i++)
{
//get pointer to, Pointer to the buffer that received the data from
//the call to NetServerEnum. Must ensure to use correct size of
//STRUCTURE to ensure correct location in memory is pointed to
tmpBuffer = new IntPtr((int)buffer + (i * sizeofINFO));
//Have now got a pointer to the list of SV_TYPE_WORKSTATION and
//SV_TYPE_SERVER PC's, which is unmanaged memory
//Needs to Marshal data from an unmanaged block of memory to a
//managed object, again using STRUCTURE to ensure the correct data
//is marshalled
var svrInfo = (_SERVER_INFO_100)Marshal.PtrToStructure(tmpBuffer, typeof(_SERVER_INFO_100));
//add the PC names to the ArrayList
if (!string.IsNullOrEmpty(svrInfo.sv100_name))
{
yield return svrInfo.sv100_name;
}
}
}
}
finally
{
//The NetApiBufferFree function frees
//the memory that the NetApiBufferAllocate function allocates
NativeMethods.NetApiBufferFree(buffer);
}
}
/// <summary>
/// Gets the network shares.
/// </summary>
/// <param name="path">The path.</param>
/// <returns>IEnumerable{NetworkShare}.</returns>
public IEnumerable<NetworkShare> GetNetworkShares(string path)
{
return new ShareCollection(path).OfType<Share>().Select(ToNetworkShare);
}
/// <summary>
/// To the network share.
/// </summary>
/// <param name="share">The share.</param>
/// <returns>NetworkShare.</returns>
private NetworkShare ToNetworkShare(Share share)
{
return new NetworkShare
{
Name = share.NetName,
Path = share.Path,
Remark = share.Remark,
Server = share.Server,
ShareType = ToNetworkShareType(share.ShareType)
};
}
/// <summary>
/// To the type of the network share.
/// </summary>
/// <param name="shareType">Type of the share.</param>
/// <returns>NetworkShareType.</returns>
/// <exception cref="System.ArgumentException">Unknown share type</exception>
private NetworkShareType ToNetworkShareType(ShareType shareType)
{
switch (shareType)
{
case ShareType.Device:
return NetworkShareType.Device;
case ShareType.Disk :
return NetworkShareType.Disk;
case ShareType.IPC :
return NetworkShareType.Ipc;
case ShareType.Printer :
return NetworkShareType.Printer;
case ShareType.Special:
return NetworkShareType.Special;
default:
throw new ArgumentException("Unknown share type");
}
}
/// <summary>
/// Parses the specified endpointstring.
/// </summary>
/// <param name="endpointstring">The endpointstring.</param>
/// <returns>IPEndPoint.</returns>
public IPEndPoint Parse(string endpointstring)
{
return Parse(endpointstring, -1);
}
/// <summary>
/// Parses the specified endpointstring.
/// </summary>
/// <param name="endpointstring">The endpointstring.</param>
/// <param name="defaultport">The defaultport.</param>
/// <returns>IPEndPoint.</returns>
/// <exception cref="System.ArgumentException">Endpoint descriptor may not be empty.</exception>
/// <exception cref="System.FormatException"></exception>
private static IPEndPoint Parse(string endpointstring, int defaultport)
{
if (string.IsNullOrEmpty(endpointstring)
|| endpointstring.Trim().Length == 0)
{
throw new ArgumentException("Endpoint descriptor may not be empty.");
}
if (defaultport != -1 &&
(defaultport < IPEndPoint.MinPort
|| defaultport > IPEndPoint.MaxPort))
{
throw new ArgumentException(string.Format("Invalid default port '{0}'", defaultport));
}
string[] values = endpointstring.Split(new char[] { ':' });
IPAddress ipaddy;
int port = -1;
//check if we have an IPv6 or ports
if (values.Length <= 2) // ipv4 or hostname
{
if (values.Length == 1)
//no port is specified, default
port = defaultport;
else
port = GetPort(values[1]);
//try to use the address as IPv4, otherwise get hostname
if (!IPAddress.TryParse(values[0], out ipaddy))
ipaddy = GetIPfromHost(values[0]);
}
else if (values.Length > 2) //ipv6
{
//could [a:b:c]:d
if (values[0].StartsWith("[") && values[values.Length - 2].EndsWith("]"))
{
string ipaddressstring = string.Join(":", values.Take(values.Length - 1).ToArray());
ipaddy = IPAddress.Parse(ipaddressstring);
port = GetPort(values[values.Length - 1]);
}
else //[a:b:c] or a:b:c
{
ipaddy = IPAddress.Parse(endpointstring);
port = defaultport;
}
}
else
{
throw new FormatException(string.Format("Invalid endpoint ipaddress '{0}'", endpointstring));
}
if (port == -1)
throw new ArgumentException(string.Format("No port specified: '{0}'", endpointstring));
return new IPEndPoint(ipaddy, port);
}
/// <summary>
/// Gets the port.
/// </summary>
/// <param name="p">The p.</param>
/// <returns>System.Int32.</returns>
/// <exception cref="System.FormatException"></exception>
private static int GetPort(string p)
{
int port;
if (!int.TryParse(p, out port)
|| port < IPEndPoint.MinPort
|| port > IPEndPoint.MaxPort)
{
throw new FormatException(string.Format("Invalid end point port '{0}'", p));
}
return port;
}
/// <summary>
/// Gets the I pfrom host.
/// </summary>
/// <param name="p">The p.</param>
/// <returns>IPAddress.</returns>
/// <exception cref="System.ArgumentException"></exception>
private static IPAddress GetIPfromHost(string p)
{
var hosts = Dns.GetHostAddresses(p);
if (hosts == null || hosts.Length == 0)
throw new ArgumentException(string.Format("Host not found: {0}", p));
return hosts[0];
}
}
}