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211 lines
8.6 KiB
C#
211 lines
8.6 KiB
C#
//
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// Authors:
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// Alan McGovern alan.mcgovern@gmail.com
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// Ben Motmans <ben.motmans@gmail.com>
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//
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// Copyright (C) 2006 Alan McGovern
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// Copyright (C) 2007 Ben Motmans
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.IO;
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using System.Net;
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using System.Xml;
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using System.Text;
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using System.Diagnostics;
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using System.Threading.Tasks;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Model.Logging;
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using MediaBrowser.Model.Dlna;
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namespace Mono.Nat.Upnp
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{
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public sealed class UpnpNatDevice : AbstractNatDevice, IEquatable<UpnpNatDevice>
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{
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private EndPoint hostEndPoint;
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private IPAddress localAddress;
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private string serviceDescriptionUrl;
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private string controlUrl;
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private string serviceType;
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private readonly ILogger _logger;
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private readonly IHttpClient _httpClient;
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public override IPAddress LocalAddress
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{
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get { return localAddress; }
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}
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internal UpnpNatDevice(IPAddress localAddress, UpnpDeviceInfo deviceInfo, IPEndPoint hostEndPoint, string serviceType, ILogger logger, IHttpClient httpClient)
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{
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this.LastSeen = DateTime.Now;
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this.localAddress = localAddress;
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// Split the string at the "location" section so i can extract the ipaddress and service description url
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string locationDetails = deviceInfo.Location.ToString();
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this.serviceType = serviceType;
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_logger = logger;
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_httpClient = httpClient;
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// Make sure we have no excess whitespace
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locationDetails = locationDetails.Trim();
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// FIXME: Is this reliable enough. What if we get a hostname as opposed to a proper http address
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// Are we going to get addresses with the "http://" attached?
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if (locationDetails.StartsWith("http://", StringComparison.OrdinalIgnoreCase))
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{
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NatUtility.Log("Found device at: {0}", locationDetails);
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// This bit strings out the "http://" from the string
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locationDetails = locationDetails.Substring(7);
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this.hostEndPoint = hostEndPoint;
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NatUtility.Log("Parsed device as: {0}", this.hostEndPoint.ToString());
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// The service description URL is the remainder of the "locationDetails" string. The bit that was originally after the ip
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// and port information
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this.serviceDescriptionUrl = locationDetails.Substring(locationDetails.IndexOf('/'));
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}
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else
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{
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NatUtility.Log("Couldn't decode address. Please send following string to the developer: ");
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}
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}
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internal UpnpNatDevice(IPAddress localAddress, string deviceDetails, string serviceType, ILogger logger, IHttpClient httpClient)
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{
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_logger = logger;
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_httpClient = httpClient;
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this.LastSeen = DateTime.Now;
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this.localAddress = localAddress;
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// Split the string at the "location" section so i can extract the ipaddress and service description url
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string locationDetails = deviceDetails.Substring(deviceDetails.IndexOf("Location", StringComparison.OrdinalIgnoreCase) + 9).Split('\r')[0];
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this.serviceType = serviceType;
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// Make sure we have no excess whitespace
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locationDetails = locationDetails.Trim();
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// FIXME: Is this reliable enough. What if we get a hostname as opposed to a proper http address
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// Are we going to get addresses with the "http://" attached?
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if (locationDetails.StartsWith("http://", StringComparison.OrdinalIgnoreCase))
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{
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NatUtility.Log("Found device at: {0}", locationDetails);
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// This bit strings out the "http://" from the string
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locationDetails = locationDetails.Substring(7);
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// We then split off the end of the string to get something like: 192.168.0.3:241 in our string
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string hostAddressAndPort = locationDetails.Remove(locationDetails.IndexOf('/'));
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// From this we parse out the IP address and Port
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if (hostAddressAndPort.IndexOf(':') > 0)
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{
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this.hostEndPoint = new IPEndPoint(IPAddress.Parse(hostAddressAndPort.Remove(hostAddressAndPort.IndexOf(':'))),
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Convert.ToUInt16(hostAddressAndPort.Substring(hostAddressAndPort.IndexOf(':') + 1), System.Globalization.CultureInfo.InvariantCulture));
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}
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else
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{
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// there is no port specified, use default port (80)
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this.hostEndPoint = new IPEndPoint(IPAddress.Parse(hostAddressAndPort), 80);
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}
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NatUtility.Log("Parsed device as: {0}", this.hostEndPoint.ToString());
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// The service description URL is the remainder of the "locationDetails" string. The bit that was originally after the ip
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// and port information
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this.serviceDescriptionUrl = locationDetails.Substring(locationDetails.IndexOf('/'));
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}
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else
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{
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logger.Warn("Couldn't decode address: " + deviceDetails);
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}
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}
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/// <summary>
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/// The EndPoint that the device is at
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/// </summary>
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internal EndPoint HostEndPoint
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{
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get { return this.hostEndPoint; }
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}
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/// <summary>
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/// The relative url of the xml file that describes the list of services is at
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/// </summary>
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internal string ServiceDescriptionUrl
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{
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get { return this.serviceDescriptionUrl; }
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}
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/// <summary>
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/// The relative url that we can use to control the port forwarding
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/// </summary>
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internal string ControlUrl
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{
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get { return this.controlUrl; }
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}
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/// <summary>
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/// The service type we're using on the device
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/// </summary>
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public string ServiceType
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{
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get { return serviceType; }
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}
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public override Task CreatePortMap(Mapping mapping)
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{
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CreatePortMappingMessage message = new CreatePortMappingMessage(mapping, localAddress, this);
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return _httpClient.SendAsync(message.Encode(), message.Method);
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}
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public override bool Equals(object obj)
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{
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UpnpNatDevice device = obj as UpnpNatDevice;
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return (device == null) ? false : this.Equals((device));
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}
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public bool Equals(UpnpNatDevice other)
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{
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return (other == null) ? false : (this.hostEndPoint.Equals(other.hostEndPoint)
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//&& this.controlUrl == other.controlUrl
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&& this.serviceDescriptionUrl == other.serviceDescriptionUrl);
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}
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public override int GetHashCode()
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{
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return (this.hostEndPoint.GetHashCode() ^ this.controlUrl.GetHashCode() ^ this.serviceDescriptionUrl.GetHashCode());
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}
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/// <summary>
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/// Overridden.
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/// </summary>
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/// <returns></returns>
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public override string ToString()
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{
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//GetExternalIP is blocking and can throw exceptions, can't use it here.
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return String.Format(
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"UpnpNatDevice - EndPoint: {0}, External IP: {1}, Control Url: {2}, Service Description Url: {3}, Service Type: {4}, Last Seen: {5}",
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this.hostEndPoint, "Manually Check" /*this.GetExternalIP()*/, this.controlUrl, this.serviceDescriptionUrl, this.serviceType, this.LastSeen);
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}
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}
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} |