kopia lustrzana https://github.com/dl2alf/AirScout
751 wiersze
28 KiB
C#
751 wiersze
28 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Reflection;
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using System.ComponentModel.Composition;
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using System.ComponentModel;
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using System.Globalization;
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using AirScout.PlaneFeeds.Plugin.MEFContract;
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using System.Diagnostics;
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using System.Net;
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using System.IO;
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using System.Web.Script.Serialization;
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using System.Security.Cryptography;
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using System.Xml.Serialization;
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using System.Xml.Linq;
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using Newtonsoft.Json;
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namespace AirScout.PlaneFeeds.Plugin.VirtualRadarServer
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{
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public class VirtualRadarServerSettings
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{
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[Browsable(false)]
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[DefaultValue("")]
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[XmlIgnore]
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public string DisclaimerAccepted { get; set; }
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[Browsable(true)]
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[CategoryAttribute("Web Feed")]
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[DescriptionAttribute("Save downloaded JSON to file")]
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[DefaultValue(false)]
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[XmlIgnore]
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public bool SaveToFile { get; set; }
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[Browsable(true)]
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[CategoryAttribute("Web Feed")]
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[DescriptionAttribute("Base URL for website.")]
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[DefaultValue("https://public-api.adsbexchange.com/VirtualRadar/AircraftList.json?fNBnd=%MAXLAT%&fSBnd=%MINLAT%&fWBnd=%MINLON%&fEBnd=%MAXLON%&fAltL=%MINALTFT%&fAltU=%MAXALTFT%")]
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public string URL { get; set; }
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[Browsable(true)]
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[CategoryAttribute("Web Feed")]
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[DescriptionAttribute("Timeout for loading the site.")]
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[DefaultValue(30)]
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[XmlIgnore]
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public int Timeout { get; set; }
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[Browsable(true)]
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[CategoryAttribute("Web Feed")]
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[DescriptionAttribute("Personal API key for this feed. Leave it empty to use AirScout internal.")]
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[DefaultValue("")]
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[XmlIgnore]
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public string APIKey { get; set; }
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public VirtualRadarServerSettings()
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{
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Default();
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Load(true);
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}
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/// <summary>
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/// Sets all properties to their default value according to the [DefaultValue=] attribute
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/// </summary>
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public void Default()
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{
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// set all properties to their default values according to definition in [DeafultValue=]
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foreach (var p in this.GetType().GetProperties())
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{
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try
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{
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// initialize all properties with default value if set
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if (Attribute.IsDefined(p, typeof(DefaultValueAttribute)))
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{
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p.SetValue(this, ((DefaultValueAttribute)Attribute.GetCustomAttribute(
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p, typeof(DefaultValueAttribute)))?.Value, null);
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("[" + this.GetType().Name + "]: Cannot set default value of: " + p.Name + ", " + ex.Message);
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}
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}
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}
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/// <summary>
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/// Loads settings from a XML-formatted configuration file into settings.
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/// </summary>
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/// <param name="loadall">If true, ignore the [XmlIgnore] attribute, e.g. load all settings available in the file.<br>If false, load only settings without [XmlIgore] attrbute.</br></param>
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/// <param name="filename">The filename of the settings file.</param>
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public void Load(bool loadall, string filename = "")
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{
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// use standard filename if empty
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// be careful because Linux file system is case sensitive
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if (String.IsNullOrEmpty(filename))
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filename = new Uri(Assembly.GetExecutingAssembly().GetName().CodeBase.Replace(".dll", ".cfg").Replace(".DLL", ".CFG")).LocalPath;
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// do nothing if file not exists
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if (!File.Exists(filename))
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return;
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try
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{
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string xml = "";
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using (StreamReader sr = new StreamReader(File.OpenRead(filename)))
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{
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xml = sr.ReadToEnd();
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}
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XDocument xdoc = XDocument.Parse(xml);
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PropertyInfo[] properties = this.GetType().GetProperties();
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foreach (PropertyInfo p in properties)
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{
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if (!loadall)
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{
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// check on XmlIgnore attribute, skip if set
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object[] attr = p.GetCustomAttributes(typeof(XmlIgnoreAttribute), false);
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if (attr.Length > 0)
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continue;
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}
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try
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{
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// get matching element
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XElement typenode = xdoc.Element(this.GetType().Name);
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if (typenode != null)
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{
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XElement element = typenode.Element(p.Name);
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if (element != null)
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p.SetValue(this, Convert.ChangeType(element.Value, p.PropertyType), null);
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("[" + this.GetType().Name + "]: Error while loading property[" + p.Name + " from " + filename + ", " + ex.Message);
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}
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("[" + this.GetType().Name + "]: Cannot load settings from " + filename + ", " + ex.Message);
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}
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}
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/// <summary>
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/// Saves settings from settings into a XML-formatted configuration file
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/// </summary>
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/// <param name="saveall">If true, ignore the [XmlIgnore] attribute, e.g. save all settings.<br>If false, save only settings without [XmlIgore] attrbute.</param>
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/// <param name="filename">The filename of the settings file.</param>
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public void Save(bool saveall, string filename = "")
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{
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// use standard filename if empty
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// be careful because Linux file system is case sensitive
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if (String.IsNullOrEmpty(filename))
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filename = new Uri(Assembly.GetExecutingAssembly().GetName().CodeBase.Replace(".dll", ".cfg").Replace(".DLL", ".CFG")).LocalPath;
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XmlAttributeOverrides overrides = new XmlAttributeOverrides();
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if (saveall)
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{
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// ovverride the XmlIgnore attributes to get all serialized
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PropertyInfo[] properties = this.GetType().GetProperties();
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foreach (PropertyInfo p in properties)
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{
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XmlAttributes attribs = new XmlAttributes { XmlIgnore = false };
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overrides.Add(this.GetType(), p.Name, attribs);
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}
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}
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try
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{
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using (StreamWriter sw = new StreamWriter(File.Create(filename)))
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{
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XmlSerializer s = new XmlSerializer(this.GetType(), overrides);
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s.Serialize(sw, this);
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}
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}
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catch (Exception ex)
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{
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throw new InvalidOperationException("[" + this.GetType().Name + "]: Cannot save settings to " + filename + ", " + ex.Message);
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}
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}
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}
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[Export(typeof(IPlaneFeedPlugin))]
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[ExportMetadata("Name", "PlaneFeedPlugin")]
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public class VirtualRadarServerPlugin : IPlaneFeedPlugin
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{
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private VirtualRadarServerSettings Settings = new VirtualRadarServerSettings();
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private string APIKey = "";
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public string Name
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{
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get
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{
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return "[WebFeed] Virtual Radar Server";
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}
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}
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public string Info
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{
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get
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{
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return "Web feed from Virtual Radar Server\n\n" +
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"(c) AirScout(www.airscout.eu)\n\n" +
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"This feed requires an API-key, either personal or AirScout internal.\n" +
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"See https://www.adsbexchange.com/ for details.\n\n" +
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"This webfeed forces TLS1.2 transport layer security. Though this plugin is compiled for .NET4.0 it needs .NET4.5 or higher installed on this machine to work.\n\n" +
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"This webfeed will probably not work on Windows XP and Linux/Mono systems";
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}
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}
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public string Version
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{
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get
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{
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return Assembly.GetExecutingAssembly().GetName().Version.ToString();
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}
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}
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public bool HasSettings
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{
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get
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{
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return true;
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}
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}
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public bool CanImport
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{
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get
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{
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return false;
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}
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}
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public bool CanExport
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{
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get
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{
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return false;
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}
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}
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public string Disclaimer
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{
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get
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{
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return "";
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}
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}
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public string DisclaimerAccepted
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{
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get
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{
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return Settings.DisclaimerAccepted;
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}
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set
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{
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Settings.DisclaimerAccepted = value;
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}
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}
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public void ResetSettings()
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{
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Settings.Default();
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}
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public void LoadSettings()
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{
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Settings.Load(true);
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}
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public void SaveSettings()
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{
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Settings.Save(true);
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}
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public object GetSettings()
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{
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return this.Settings;
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}
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public void ImportSettings()
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{
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// nothing to do
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}
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public void ExportSettings()
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{
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// nothing to do
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}
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public void Start(PlaneFeedPluginArgs args)
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{
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// check for personal API-key
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if (!String.IsNullOrEmpty(Settings.APIKey))
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{
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APIKey = Settings.APIKey;
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return;
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}
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// get AirScout internal key
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try
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{
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WebClient client = new WebClient();
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string result = client.DownloadString(args.GetKeyURL +
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"?id=" + args.InstanceID +
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"&key=vrs");
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if (!result.StartsWith("Error:"))
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{
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result = result.Trim('\"');
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APIKey = OpenSSLDecrypt(result, args.SessionKey);
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}
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}
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catch (Exception ex)
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{
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}
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}
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public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
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{
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// intialize variables
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VarConverter VC = new VarConverter();
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VC.AddVar("APPDIR", args.AppDirectory);
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VC.AddVar("DATADIR", args.AppDataDirectory);
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VC.AddVar("LOGDIR", args.LogDirectory);
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VC.AddVar("DATABASEDIR", args.DatabaseDirectory);
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VC.AddVar("MINLAT", args.MinLat);
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VC.AddVar("MAXLAT", args.MaxLat);
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VC.AddVar("MINLON", args.MinLon);
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VC.AddVar("MAXLON", args.MaxLon);
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VC.AddVar("MINALTM", args.MinAlt);
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VC.AddVar("MAXALTM", args.MaxAlt);
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VC.AddVar("MINALTFT", (int)UnitConverter.m_ft((double)args.MinAlt));
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VC.AddVar("MAXALTFT", (int)UnitConverter.m_ft((double)args.MaxAlt));
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// initialize plane info list
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PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
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string json = "";
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// calculate url and get json
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String url = VC.ReplaceAllVars(Settings.URL);
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Console.WriteLine("[" + this.GetType().Name + "]: Creating web request: " + url);
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// HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);
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// webrequest.Referer = "http://www.vrs-world.com/";
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// webrequest.Timeout = Settings.Timeout * 1000;
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// webrequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0";
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// webrequest.Accept = "application/json, text/javascript, */*;q=0.01";
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// webrequest.AutomaticDecompression = System.Net.DecompressionMethods.Deflate | System.Net.DecompressionMethods.GZip;
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// webrequest.Headers.Add("api-auth:" + APIKey);
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// Console.WriteLine("[" + this.GetType().Name + "]: Getting web response");
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// HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();
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// Console.WriteLine("[" + this.GetType().Name + "]: Reading stream");
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//
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// using (StreamReader sr = new StreamReader(webresponse.GetResponseStream()))
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// {
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// json = sr.ReadToEnd();
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// }
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// */
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json = VRSTlsClient.DownloadFile(url, Settings.Timeout * 1000, APIKey);
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// save raw data to file if enabled
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if (Settings.SaveToFile)
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{
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using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
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{
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sw.WriteLine(json);
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}
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}
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Console.WriteLine("[" + this.GetType().Name + "]: Analyzing data");
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// JavaScriptSerializer js = new JavaScriptSerializer();
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// dynamic root = js.Deserialize<dynamic>(json);
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// 2017-07-23: workaround for "jumping planes" due to incorrect time stamps
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// try to get the server time to adjust the time stamps in plane positions
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// --> compare server time with local time and calculate offset
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// default offset is 0
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long toffset = 0;
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try
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{
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// deserialize JSON
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dynamic root = JsonConvert.DeserializeObject(json);
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// get local time of request in milliseconds
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DateTime lt = DateTime.UtcNow;
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long ltime = (long)(lt - new DateTime(1970, 1, 1)).TotalMilliseconds;
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// get server time in milliseconds
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long stime = ReadPropertyLong(root, "stm");
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DateTime sti = new System.DateTime(1970, 1, 1, 0, 0, 0, 0).AddMilliseconds(stime);
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// calculate offset in milliseconds
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toffset = ltime - stime;
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// check value
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string message = "Server timestamp difference (server <> local): " + sti.ToString("yyyy-MM-dd HH:mm:ss,fffZ") + " <> " + lt.ToString("yyyy-MM-dd HH:mm:ss,fffZ");
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// server time is more than 10.000 ms in the future --> keep offset for correction and log an error message
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// else --> set offset to 0 to work with real timestamps of entries without correction
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if (toffset <= -10000)
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{
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message += " --> timestamp correction applied!";
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// Log.WriteMessage(message);
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}
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else
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{
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// clear offset
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toffset = 0;
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}
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// analyze json string for planes data
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// get the planes position list
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var aclist = root["acList"];
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foreach (var ac in aclist)
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{
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try
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{
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PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
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// get hex first
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plane.Hex = ReadPropertyString(ac, "Icao").Trim().Replace("\"","");
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// get position
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plane.Lat = ReadPropertyDouble(ac, "Lat");
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plane.Lon = ReadPropertyDouble(ac, "Long");
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// get altitude
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// 2017-07-23: take "GAlt" (corrected altitude by air pressure) rather than "Alt"
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plane.Alt = ReadPropertyInt(ac, "GAlt");
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// get callsign
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plane.Call = ReadPropertyString(ac, "Call");
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// get registration
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plane.Reg = ReadPropertyString(ac, "Reg");
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// get track
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plane.Track = ReadPropertyInt(ac, "Trak");
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// get speed
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plane.Speed = ReadPropertyInt(ac, "Spd");
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// get position timestamp
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// CAUTION!! time is UNIX time in milliseconds
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long l = ReadPropertyLong(ac, "PosTime");
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if (l != long.MinValue)
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{
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// 2017-07-23: correct timestamp with offset
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l = l + toffset;
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DateTime timestamp = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
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timestamp = timestamp.AddMilliseconds(l);
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plane.Time = timestamp;
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}
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else
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{
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// skip plane if no valid timestamp found
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continue;
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}
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// get type info
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plane.Type = ReadPropertyString(ac, "Type");
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// get extended plane type info
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plane.Manufacturer = ReadPropertyString(ac, "Man");
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plane.Model = ReadPropertyString(ac, "Mdl");
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long cat = ReadPropertyLong(ac, "WTC");
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switch (cat)
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{
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case 1: plane.Category = 1; break;
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case 2: plane.Category = 2; break;
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case 3: plane.Category = 3; break;
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case 4: plane.Category = 4; break;
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default: plane.Category = 0; break;
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}
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// do correction of A380 as "SuperHeavy" is not supported
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if (plane.Type == "A388")
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plane.Category = 4;
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// get country
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plane.Country = ReadPropertyString(ac, "Cou");
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// get departure airport
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plane.From = ReadPropertyString(ac, "From");
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// get destination airport
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plane.To = ReadPropertyString(ac, "To");
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// get vertical speed
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plane.VSpeed = ReadPropertyInt(ac, "Vsi");
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// add plane to list
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planes.Add(plane);
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}
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catch (Exception ex)
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{
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Console.WriteLine("[" + System.Reflection.MethodBase.GetCurrentMethod().Name + "]" + ex.Message);
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}
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}
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}
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catch (Exception ex)
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{
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// do nothing if property is not found
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}
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Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
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return planes;
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}
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public void Stop(PlaneFeedPluginArgs args)
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{
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Settings.Save(true);
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}
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// end of Interface
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/// <summary>
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/// Decodes an OpenSSL-encrypted (AES256-CBC) string<br></br><br></br>
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/// The equivalent encoding in PHP is like:<br></br><br></br>
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/// $encrypt_method = "AES-256-CBC";<br></br>
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/// $secret_key = hash('md5',$key);<br></br>
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/// $encoded = openssl_encrypt($data, $encrypt_method, $secret_key);
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/// </summary>
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/// <param name="encrypteddata">The encrypted string (Base64 encoded).</param>
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/// <param name="pwd">The password as a string.</param>
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/// <returns></returns>
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public static string OpenSSLDecrypt(string encrypteddata, string pwd)
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{
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// create a 32bit MD5 hash of the password
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var hash = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(pwd));
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StringBuilder sb = new StringBuilder();
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// Loop through each byte of the hashed data
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// and format each one as a hexadecimal string.
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for (int i = 0; i < hash.Length; i++)
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{
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sb.Append(hash[i].ToString("x2"));
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}
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// use the MD5 hash as the key
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byte[] key = Encoding.UTF8.GetBytes(sb.ToString());
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//get the encrypted data as byte[]
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byte[] encrypted = Convert.FromBase64String(encrypteddata);
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//setup an empty iv
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var iv = new byte[16];
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// Declare the RijndaelManaged object used to decrypt the data.
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RijndaelManaged aesAlg = null;
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// Declare the string used to hold the decrypted text.
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string decrypted;
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|
|
// Create a RijndaelManaged object
|
|
// with the specified key and IV.
|
|
aesAlg = new RijndaelManaged { Mode = CipherMode.CBC, Padding = PaddingMode.PKCS7, KeySize = 256, BlockSize = 128, Key = key, IV = iv };
|
|
|
|
// Create a decrytor to perform the stream transform.
|
|
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
|
|
// Create the streams used for decryption.
|
|
using (MemoryStream ms = new MemoryStream(encrypted))
|
|
{
|
|
using (CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read))
|
|
{
|
|
using (StreamReader sr = new StreamReader(cs))
|
|
{
|
|
// Read the decrypted bytes from the decrypting stream
|
|
// and place them in a string.
|
|
decrypted = sr.ReadToEnd();
|
|
sr.Close();
|
|
}
|
|
}
|
|
}
|
|
// return decrypted string
|
|
return decrypted;
|
|
}
|
|
|
|
[System.Diagnostics.DebuggerNonUserCode]
|
|
private string ReadPropertyString(dynamic o, string propertyname)
|
|
{
|
|
string s = null;
|
|
try
|
|
{
|
|
s = o[propertyname];
|
|
}
|
|
catch
|
|
{
|
|
|
|
}
|
|
return s;
|
|
}
|
|
|
|
[System.Diagnostics.DebuggerNonUserCode]
|
|
private int ReadPropertyInt(dynamic o, string propertyname)
|
|
{
|
|
int i = int.MinValue;
|
|
double d = ReadPropertyDouble(o, propertyname);
|
|
if ((d != double.MinValue) && (d >= int.MinValue) && (d <= int.MaxValue))
|
|
i = (int)d;
|
|
return i;
|
|
}
|
|
|
|
[System.Diagnostics.DebuggerNonUserCode]
|
|
private double ReadPropertyDouble(dynamic o, string propertyname)
|
|
{
|
|
double d = double.MinValue;
|
|
try
|
|
{
|
|
string s = o[propertyname].ToString(CultureInfo.InvariantCulture);
|
|
d = double.Parse(s, CultureInfo.InvariantCulture);
|
|
}
|
|
catch
|
|
{
|
|
// do nothing if something went wrong
|
|
}
|
|
return d;
|
|
}
|
|
|
|
[System.Diagnostics.DebuggerNonUserCode]
|
|
private long ReadPropertyLong(dynamic o, string propertyname)
|
|
{
|
|
long l = long.MinValue;
|
|
try
|
|
{
|
|
l = o[propertyname];
|
|
}
|
|
catch
|
|
{
|
|
// do nothing if something went wrong
|
|
}
|
|
return l;
|
|
}
|
|
|
|
[System.Diagnostics.DebuggerNonUserCode]
|
|
private bool ReadPropertyBool(dynamic o, string propertyname)
|
|
{
|
|
bool b = false;
|
|
try
|
|
{
|
|
string s = o[propertyname].ToString();
|
|
b = s.ToLower() == "true";
|
|
}
|
|
catch
|
|
{
|
|
// do nothing if something went wrong
|
|
}
|
|
return b;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// //////////////////////////////////////////// Helpers ////////////////////////////////////////////
|
|
/// </summary>
|
|
|
|
public static class UnitConverter
|
|
{
|
|
public static double ft_m(double feet)
|
|
{
|
|
return feet / 3.28084;
|
|
}
|
|
|
|
public static double m_ft(double m)
|
|
{
|
|
return m * 3.28084;
|
|
}
|
|
|
|
public static double kts_kmh(double kts)
|
|
{
|
|
return kts * 1.852;
|
|
}
|
|
|
|
public static double kmh_kts(double kmh)
|
|
{
|
|
return kmh / 1.852;
|
|
}
|
|
|
|
public static double km_mi(double km)
|
|
{
|
|
return km * 1.609;
|
|
}
|
|
|
|
public static double mi_km(double mi)
|
|
{
|
|
return mi / 1.609;
|
|
}
|
|
}
|
|
|
|
public class VarConverter : Dictionary<string, object>
|
|
{
|
|
public readonly char VarSeparator = '%';
|
|
|
|
public void AddVar(string var, object value)
|
|
{
|
|
// adds a new var<>value pair to dictionary
|
|
object o;
|
|
if (this.TryGetValue(var, out o))
|
|
{
|
|
// item found --> update value
|
|
o = value;
|
|
}
|
|
else
|
|
{
|
|
// item not found --> add new
|
|
this.Add(var, value);
|
|
}
|
|
}
|
|
|
|
public object GetValue(string var)
|
|
{
|
|
// finds a var in dictionary and returns its value
|
|
object o;
|
|
if (this.TryGetValue(var, out o))
|
|
{
|
|
// item found --> return value
|
|
return o;
|
|
}
|
|
// item not found --> return null
|
|
return null;
|
|
}
|
|
|
|
public string ReplaceAllVars(string s)
|
|
{
|
|
// check for var separotors first
|
|
if (s.Contains(VarSeparator))
|
|
{
|
|
// OK, string is containing vars --> crack the string first and replace vars
|
|
try
|
|
{
|
|
string[] a = s.Split(VarSeparator);
|
|
// as we are always using a pair of separators the length of a[] must be odd
|
|
if (a.Length % 2 == 0)
|
|
throw new ArgumentException("Number of separators is not an even number.");
|
|
// create new string and replace all vars (on odd indices)
|
|
s = "";
|
|
for (int i = 0; i < a.Length; i++)
|
|
{
|
|
if (i % 2 == 0)
|
|
{
|
|
// cannot be not a var on that position
|
|
s = s + a[i];
|
|
}
|
|
else
|
|
{
|
|
// var identifier: upper the string and try to convert
|
|
a[i] = a[i].ToUpper();
|
|
object o;
|
|
if (this.TryGetValue(a[i], out o))
|
|
{
|
|
// convert floating points with invariant culture info
|
|
if (o.GetType() == typeof(double))
|
|
s = s + ((double)o).ToString(CultureInfo.InvariantCulture);
|
|
else if (o.GetType() == typeof(float))
|
|
s = s + ((float)o).ToString(CultureInfo.InvariantCulture);
|
|
else
|
|
s = s + o.ToString();
|
|
}
|
|
else
|
|
{
|
|
throw new ArgumentException("Var identifier not found: " + a[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
// throw an excecption
|
|
throw new ArgumentException("Error while parsing string for variables [" + ex.Message + "]: " + s);
|
|
}
|
|
}
|
|
return s;
|
|
}
|
|
|
|
}
|
|
|
|
}
|