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Lidarr/NzbDrone.Common/SecurityProvider.cs

219 lines
5.3 KiB

using System;
using System.Diagnostics;
using System.Linq;
using System.Security.Principal;
using NLog;
#if __MonoCS__
#else
using NetFwTypeLib;
#endif
namespace NzbDrone.Common
{
public class SecurityProvider
{
private static readonly Logger Logger = LogManager.GetCurrentClassLogger ();
private readonly ConfigFileProvider _configFileProvider;
private readonly EnvironmentProvider _environmentProvider;
private readonly ProcessProvider _processProvider;
public SecurityProvider (ConfigFileProvider configFileProvider, EnvironmentProvider environmentProvider,
ProcessProvider processProvider)
{
_configFileProvider = configFileProvider;
_environmentProvider = environmentProvider;
_processProvider = processProvider;
}
public SecurityProvider ()
{
}
public virtual void MakeAccessible ()
{
if (!IsCurrentUserAdmin ()) {
Logger.Trace ("User is not an admin, skipping.");
return;
}
int port = 0;
if (IsFirewallEnabled ()) {
if (IsNzbDronePortOpen ()) {
Logger.Trace ("NzbDrone port is already open, skipping.");
return;
}
//Close any old ports
port = CloseFirewallPort ();
//Open the new port
OpenFirewallPort (_configFileProvider.Port);
}
//Skip Url Register if not Vista or 7
if (_environmentProvider.GetOsVersion ().Major < 6)
return;
//Unregister Url (if port != 0)
if (port != 0)
UnregisterUrl (port);
//Register Url
RegisterUrl (_configFileProvider.Port);
}
public virtual bool IsCurrentUserAdmin ()
{
try {
var principal = new WindowsPrincipal (WindowsIdentity.GetCurrent ());
return principal.IsInRole (WindowsBuiltInRole.Administrator);
} catch (Exception ex) {
Logger.WarnException ("Error checking if the current user is an administrator.", ex);
return false;
}
}
public virtual bool IsNzbDronePortOpen ()
{
#if __MonoCS__
#else
try {
var netFwMgrType = Type.GetTypeFromProgID ("HNetCfg.FwMgr", false);
var mgr = (INetFwMgr)Activator.CreateInstance (netFwMgrType);
if (!mgr.LocalPolicy.CurrentProfile.FirewallEnabled)
return false;
var ports = mgr.LocalPolicy.CurrentProfile.GloballyOpenPorts;
foreach (INetFwOpenPort p in ports) {
if (p.Port == _configFileProvider.Port)
return true;
}
} catch (Exception ex) {
Logger.WarnException ("Failed to check for open port in firewall", ex);
}
#endif
return false;
}
private bool OpenFirewallPort (int portNumber)
{
#if __MonoCS__
return true;
#else
try {
var type = Type.GetTypeFromProgID ("HNetCfg.FWOpenPort", false);
var port = Activator.CreateInstance (type) as INetFwOpenPort;
port.Port = portNumber;
port.Name = "NzbDrone";
port.Protocol = NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP;
port.Enabled = true;
var netFwMgrType = Type.GetTypeFromProgID ("HNetCfg.FwMgr", false);
var mgr = (INetFwMgr)Activator.CreateInstance (netFwMgrType);
var ports = mgr.LocalPolicy.CurrentProfile.GloballyOpenPorts;
ports.Add (port);
return true;
} catch (Exception ex) {
Logger.WarnException ("Failed to open port in firewall for NzbDrone " + portNumber, ex);
return false;
}
#endif
}
private int CloseFirewallPort ()
{
#if __MonoCS__
#else
try {
var netFwMgrType = Type.GetTypeFromProgID ("HNetCfg.FwMgr", false);
var mgr = (INetFwMgr)Activator.CreateInstance (netFwMgrType);
var ports = mgr.LocalPolicy.CurrentProfile.GloballyOpenPorts;
var portNumber = 8989;
foreach (INetFwOpenPort p in ports) {
if (p.Name == "NzbDrone") {
portNumber = p.Port;
break;
}
}
if (portNumber != _configFileProvider.Port) {
ports.Remove (portNumber, NET_FW_IP_PROTOCOL_.NET_FW_IP_PROTOCOL_TCP);
return portNumber;
}
} catch (Exception ex) {
Logger.WarnException ("Failed to close port in firewall for NzbDrone", ex);
}
#endif
return 0;
}
private bool IsFirewallEnabled ()
{
#if __MonoCS__
return true;
#else
try {
var netFwMgrType = Type.GetTypeFromProgID ("HNetCfg.FwMgr", false);
var mgr = (INetFwMgr)Activator.CreateInstance (netFwMgrType);
return mgr.LocalPolicy.CurrentProfile.FirewallEnabled;
} catch (Exception ex) {
Logger.WarnException ("Failed to check if the firewall is enabled", ex);
return false;
}
#endif
}
private bool RegisterUrl (int portNumber)
{
try {
var startInfo = new ProcessStartInfo ()
{
FileName = "netsh.exe",
Arguments = string.Format("http add urlacl http://*:{0}/ user=EVERYONE", portNumber)
};
var process = _processProvider.Start (startInfo);
process.WaitForExit (5000);
return true;
} catch (Exception ex) {
Logger.WarnException ("Error registering URL", ex);
}
return false;
}
private bool UnregisterUrl (int portNumber)
{
try {
var startInfo = new ProcessStartInfo ()
{
FileName = "netsh.exe",
Arguments = string.Format("http delete urlacl http://*:{0}/", portNumber)
};
var process = _processProvider.Start (startInfo);
process.WaitForExit (5000);
return true;
} catch (Exception ex) {
Logger.WarnException ("Error registering URL", ex);
}
return false;
}
}
}