/// <summary>
/// Start an individual POP3 proxy on its own thread.
/// </summary>
/// <param name="parameters">Pop3ProxyArguments object containing all parameters for this connection.</param>
private static void StartProxy(object parameters)
{
Pop3ProxyArguments arguments = (Pop3ProxyArguments)parameters;
// Start the proxy using passed-in settings.
arguments.Proxy.Start(arguments.AcceptedIPs, arguments.LocalIpAddress, arguments.LocalPort, arguments.LocalEnableSsl, arguments.RemoteServerHostName, arguments.RemoteServerPort, arguments.RemoteServerEnableSsl, arguments.RemoteServerCredential, arguments.ExportDirectory, arguments.LogFile, arguments.LogLevel, arguments.InstanceId, arguments.DebugMode);
}
/// <summary>
/// Start all POP3 proxy instances from the specified settings file.
/// </summary>
/// <param name="fileName">File containing the POP3 proxy settings.</param>
public static List <Pop3Proxy> StartProxiesFromSettingsFile(string fileName)
{
List <Pop3Proxy> pop3Proxies = new List <Pop3Proxy>();
try
{
if (File.Exists(fileName))
{
XPathDocument document = new XPathDocument(fileName);
XPathNavigator navigator = document.CreateNavigator();
int pop3ServiceCount = ProxyFunctions.GetXmlIntValue(navigator, "/Settings/IMAP/ServiceCount");
for (int i = 1; i <= pop3ServiceCount; i++)
{
Pop3ProxyArguments arguments = new Pop3ProxyArguments();
arguments.AcceptedIPs = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/SMTP/Service" + i + "/AcceptedIPs");
string localIpAddress = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/LocalIPAddress").ToUpper();
switch (localIpAddress)
{
// Treat blank values as "Any".
case "":
case "ANY":
arguments.LocalIpAddress = IPAddress.Any;
break;
case "BROADCAST":
arguments.LocalIpAddress = IPAddress.Broadcast;
break;
case "IPV6ANY":
arguments.LocalIpAddress = IPAddress.IPv6Any;
break;
case "IPV6LOOPBACK":
arguments.LocalIpAddress = IPAddress.IPv6Loopback;
break;
case "LOOPBACK":
arguments.LocalIpAddress = IPAddress.Loopback;
break;
default:
// Try to parse the local IP address. If unable to, proceed to the next service instance.
if (!IPAddress.TryParse(localIpAddress, out arguments.LocalIpAddress))
{
continue;
}
break;
}
arguments.LocalPort = ProxyFunctions.GetXmlIntValue(navigator, "/Settings/POP3/Service" + i + "/LocalPort");
// If the port is invalid, proceed to the next service instance.
if (arguments.LocalPort < 1)
{
continue;
}
arguments.LocalEnableSsl = ProxyFunctions.GetXmlBoolValue(navigator, "/Settings/POP3/Service" + i + "/LocalEnableSSL");
arguments.RemoteServerHostName = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/RemoteServerHostName");
// If the host name is invalid, proceed to the next service instance.
if (string.IsNullOrEmpty(arguments.RemoteServerHostName))
{
continue;
}
arguments.RemoteServerPort = ProxyFunctions.GetXmlIntValue(navigator, "/Settings/POP3/Service" + i + "/RemoteServerPort");
// If the port is invalid, proceed to the next service instance.
if (arguments.RemoteServerPort < 1)
{
continue;
}
arguments.RemoteServerEnableSsl = ProxyFunctions.GetXmlBoolValue(navigator, "/Settings/POP3/Service" + i + "/RemoteServerEnableSSL");
string remoteServerUsername = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/RemoteServerUsername");
if (!string.IsNullOrEmpty(remoteServerUsername))
{
arguments.RemoteServerCredential = new NetworkCredential();
arguments.RemoteServerCredential.UserName = remoteServerUsername;
arguments.RemoteServerCredential.Password = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/RemoteServerPassword");
}
string certificateLocationValue = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/Certificate/Location");
StoreLocation certificateLocation = StoreLocation.LocalMachine;
if (certificateLocationValue.ToUpper() == "CURRENTUSER")
{
certificateLocation = StoreLocation.CurrentUser;
}
// Try to load the signing certificate based on its serial number first, then fallback to its subject name.
string certificateValue = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/Certificate/SerialNumber");
if (!string.IsNullOrEmpty(certificateValue))
{
arguments.Certificate = CertHelper.GetCertificateBySerialNumber(certificateLocation, certificateValue);
}
else
{
certificateValue = ProxyFunctions.GetXmlStringValue(navigator, "/Settings/POP3/Service" + i + "/Certificate/SubjectName");
if (!string.IsNullOrEmpty(certificateValue))
{
arguments.Certificate = CertHelper.GetCertificateBySubjectName(certificateLocation, certificateValue);
}
}
arguments.ExportDirectory = ProxyFunctions.GetXmlStringValue(navigator, "Settings/POP3/Service" + i + "/ExportDirectory");
arguments.LogFile = ProxyFunctions.GetXmlStringValue(navigator, "Settings/POP3/Service" + i + "/LogFile");
string logLevel = ProxyFunctions.GetXmlStringValue(navigator, "Settings/POP3/Service" + i + "/LogLevel");
switch (logLevel.ToUpper())
{
case "NONE":
arguments.LogLevel = LogLevel.None;
break;
case "CRITICAL":
arguments.LogLevel = LogLevel.Critical;
break;
case "ERROR":
arguments.LogLevel = LogLevel.Error;
break;
case "RAW":
arguments.LogLevel = LogLevel.Raw;
break;
case "VERBOSE":
arguments.LogLevel = LogLevel.Verbose;
break;
case "WARNING":
arguments.LogLevel = LogLevel.Warning;
break;
case "INFORMATION":
default:
arguments.LogLevel = LogLevel.Information;
break;
}
arguments.InstanceId = i;
arguments.DebugMode = ProxyFunctions.GetXmlBoolValue(navigator, "Settings/POP3/Service" + i + "/Debug");
// Remember the proxy in order to close it when the service stops.
arguments.Proxy = new Pop3Proxy();
pop3Proxies.Add(arguments.Proxy);
Thread proxyThread = new Thread(new ParameterizedThreadStart(StartProxy));
proxyThread.Name = "OpaqueMail POP3 Proxy";
proxyThread.Start(arguments);
}
}
}
catch
{
// Ignore errors if the XML settings file is malformed.
}
return(pop3Proxies);
}