Import TechBot

svn path=/trunk/; revision=13064

irc/TechBot/TechBot.Library/NtStatusCommand.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Xml;
+
+namespace TechBot.Library
+{
+	public class NtStatusCommand : BaseCommand, ICommand
+	{
+		private IServiceOutput serviceOutput;
+		private string ntstatusXml;
+		private XmlDocument ntstatusXmlDocument;
+
+		public NtStatusCommand(IServiceOutput serviceOutput,
+		                       string ntstatusXml)
+		{
+			this.serviceOutput = serviceOutput;
+			this.ntstatusXml = ntstatusXml;
+			ntstatusXmlDocument = new XmlDocument();
+			ntstatusXmlDocument.Load(ntstatusXml);
+		}
+		
+		public bool CanHandle(string commandName)
+		{
+			return CanHandle(commandName,
+			                 new string[] { "ntstatus" });
+		}
+
+		public void Handle(string commandName,
+		                   string parameters)
+		{
+			string ntstatusText = parameters;
+			if (ntstatusText.Equals(String.Empty))
+			{
+				serviceOutput.WriteLine("Please provide a valid NTSTATUS value.");
+				return;
+			}
+
+			NumberParser np = new NumberParser();
+			long ntstatus = np.Parse(ntstatusText);
+			if (np.Error)
+			{
+				serviceOutput.WriteLine(String.Format("{0} is not a valid NTSTATUS value.",
+				                                      ntstatusText));
+				return;
+			}
+			
+			string description = GetNtstatusDescription(ntstatus);
+			if (description != null)
+			{
+				serviceOutput.WriteLine(String.Format("{0} is {1}.",
+				                                      ntstatusText,
+				                                      description));
+			}
+			else
+			{
+				serviceOutput.WriteLine(String.Format("I don't know about NTSTATUS {0}.",
+				                                      ntstatusText));
+			}
+		}
+		
+		public string Help()
+		{
+			return "!ntstatus <value>";
+		}
+		
+		private string GetNtstatusDescription(long ntstatus)
+		{
+			XmlElement root = ntstatusXmlDocument.DocumentElement;
+			XmlNode node = root.SelectSingleNode(String.Format("Ntstatus[@value='{0}']",
+			                                                   ntstatus.ToString("X8")));
+			if (node != null)
+			{
+				XmlAttribute text = node.Attributes["text"];
+				if (text == null)
+					throw new Exception("Node has no text attribute.");
+				return text.Value;
+			}
+			else
+				return null;
+		}
+	}
+}