Milestone 5: deliver embedded RDP sessions and lifecycle hardening

third_party/FreeRDP/winpr/libwinpr/timezone/utils/tzextract.cs

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+using System;
+using System.IO;
+using System.Net;
+using System.Text;
+using System.Xml;
+using System.Xml.Linq;
+using System.Xml.Schema;
+
+internal class Program
+{
+	private static string app = AppDomain.CurrentDomain.FriendlyName;
+	private static TextWriter stderr = Console.Error;
+	private static TextWriter stdout = Console.Out;
+
+	private static void usage()
+	{
+		stderr.WriteLine("Usage:");
+		stderr.WriteLine(app + " <path to output files>");
+		Environment.Exit(1);
+	}
+
+	private static bool writeZoneMapC(string path)
+	{
+		string fname = "TimeZoneNameMap";
+		string fpath = Path.Combine(path, fname + "_static.h");
+
+		using (StreamWriter fs = new StreamWriter(fpath))
+		{
+			fs.WriteLine("/* Automatically generated by " + app + " */");
+			fs.WriteLine("");
+			fs.WriteLine("#include \"" + fname + ".h\"");
+			fs.WriteLine("");
+			fs.WriteLine("static const " + fname + "Entry " + fname + "[] ={");
+
+			bool first = true;
+			foreach (System.TimeZoneInfo tz in System.TimeZoneInfo.GetSystemTimeZones())
+			{
+				string iana;
+				System.TimeZoneInfo.TryConvertWindowsIdToIanaId(tz.Id, out iana);
+
+				StringBuilder sb = new StringBuilder();
+				if (!first)
+					sb.Append(",");
+				first = false;
+				sb.Append("{ \"");
+				sb.Append(tz.Id);
+				sb.Append("\", \"");
+				sb.Append(tz.StandardName);
+				sb.Append("\", \"");
+				sb.Append(tz.DisplayName);
+				sb.Append("\", \"");
+				sb.Append(tz.DaylightName);
+				sb.Append("\", \"");
+				sb.Append(iana);
+				sb.Append("\" }");
+				fs.WriteLine(sb.ToString());
+			}
+
+			fs.WriteLine("};");
+			fs.WriteLine("");
+			fs.WriteLine("static const size_t " + fname + "Size = ARRAYSIZE(" + fname + ");");
+		}
+		return true;
+	}
+
+	private static bool writeZoneMapJSON(string path)
+	{
+		string fname = "TimeZoneNameMap";
+		string fpath = Path.Combine(path, fname + ".json");
+
+		using (StreamWriter fs = new StreamWriter(fpath))
+		{
+			fs.WriteLine("{");
+			fs.WriteLine("\"TimeZoneNameMap\": [");
+
+			bool first = true;
+			foreach (System.TimeZoneInfo tz in System.TimeZoneInfo.GetSystemTimeZones())
+			{
+				string iana;
+				System.TimeZoneInfo.TryConvertWindowsIdToIanaId(tz.Id, out iana);
+
+				StringBuilder sb = new StringBuilder();
+				if (!first)
+					sb.Append(",");
+				first = false;
+				sb.Append("{ ");
+				sb.Append("\"Id\": \"");
+				sb.Append(tz.Id);
+				sb.Append("\", \"StandardName\": \"");
+				sb.Append(tz.StandardName);
+				sb.Append("\", \"DisplayName\": \"");
+				sb.Append(tz.DisplayName);
+				sb.Append("\", \"DaylightName\": \"");
+				sb.Append(tz.DaylightName);
+				sb.Append("\", \"Iana\": \"");
+				sb.Append(iana);
+				sb.Append("\" }");
+				fs.WriteLine(sb.ToString());
+			}
+
+			fs.WriteLine("]");
+			fs.WriteLine("}");
+		}
+		return true;
+	}
+
+	private static bool writeZoneMap(string path)
+	{
+		if (!writeZoneMapC(path))
+			return false;
+		if (!writeZoneMapJSON(path))
+			return false;
+		return true;
+	}
+
+	private static void onValidation(object sender, ValidationEventArgs e)
+	{
+		switch (e.Severity)
+		{
+			case XmlSeverityType.Warning:
+			case XmlSeverityType.Error:
+				stderr.WriteLine(e.ToString());
+				break;
+			default:
+				break;
+		}
+	}
+	private static bool updateWindowsIanaMap(string path)
+	{
+		string url =
+		    "https://raw.githubusercontent.com/unicode-org/cldr/main/common/supplemental/windowsZones.xml";
+		string fname = "WindowsZones";
+		string fpath = Path.Combine(path, fname + ".c");
+
+		XmlDocument doc = new XmlDocument();
+		doc.Load(url);
+
+		stdout.WriteLine("Downloaded and parsed XML from '" + url + "'");
+
+		ValidationEventHandler handler = new ValidationEventHandler(onValidation);
+		// doc.Validate(handler);
+
+		XmlNodeList versions = doc.SelectNodes("//supplementalData/version");
+		XmlNodeList zones = doc.SelectNodes("//supplementalData/windowsZones/mapTimezones");
+		XmlNodeList mzones =
+		    doc.SelectNodes("//supplementalData/windowsZones/mapTimezones/mapZone");
+
+		using (StreamWriter fs = new StreamWriter(fpath))
+		{
+			fs.WriteLine("/* Automatically generated by " + app);
+			fs.WriteLine(" *");
+			fs.WriteLine(" * url " + url);
+
+			foreach (XmlNode version in versions)
+			{
+				XmlNode nr = version.Attributes.GetNamedItem("number");
+				fs.WriteLine(" * version: " + nr.InnerText);
+			}
+
+			foreach (XmlNode node in zones)
+			{
+				XmlNode over = node.Attributes.GetNamedItem("otherVersion");
+				XmlNode tver = node.Attributes.GetNamedItem("typeVersion");
+				fs.WriteLine(" * mapTimezones: otherVersion: " + over.InnerText +
+				             ", typeVersion: " + tver.InnerText);
+			}
+
+			fs.WriteLine(" */");
+			fs.WriteLine("");
+			fs.WriteLine("#include \"" + fname + ".h\"");
+			fs.WriteLine("");
+			fs.WriteLine("const WINDOWS_TZID_ENTRY " + fname + "[] = {");
+
+			foreach (XmlNode mzone in mzones)
+			{
+				XmlAttributeCollection attrs = mzone.Attributes;
+				XmlNode wzid = attrs.GetNamedItem("other");
+				XmlNode territory = attrs.GetNamedItem("territory");
+				XmlNode iana = attrs.GetNamedItem("type");
+				fs.WriteLine("\t{ \"" + iana.InnerText + "\", \"" + wzid.InnerText + "\" }, // " +
+				             territory.InnerText);
+			}
+
+			fs.WriteLine("};");
+			fs.WriteLine("");
+			fs.WriteLine("const size_t " + fname + "NrElements = ARRAYSIZE(" + fname + ");");
+		}
+		stdout.WriteLine("Finished update");
+		return true;
+	}
+
+	private static void Main(string[] args)
+	{
+		try
+		{
+			if (args.Length == 0)
+			{
+				stderr.WriteLine("Missing arguments!");
+				usage();
+			}
+
+			DirectoryInfo info = new DirectoryInfo(args[0]);
+			if (!info.Exists)
+			{
+				stderr.WriteLine("Path '" + info.FullName + "' does not exist");
+				usage();
+			}
+
+			if (!writeZoneMap(info.FullName))
+				return;
+
+			updateWindowsIanaMap(info.FullName);
+		}
+		catch (Exception e)
+		{
+			stderr.WriteLine(e.ToString());
+			Environment.Exit(-23);
+		}
+	}
+}