<%@ WebService Language="C#" Class="TrafficService" %>

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Diagnostics;

using System.Web;

using System.Web.Services;

using System.Net;

using System.IO;

using System.Text.RegularExpressions;

[WebService(Namespace = "http://maslan.org/webservices/")]

public class TrafficService

{

public TrafficService()

    {

    }

   [WebMethod]

public DriveTime GetDriveTime(string url511)

    {       

string result = ReadHtmlPage(url511);

return GetTimeDistance(result);

    }

private String ReadHtmlPage(string url)

    {

String result;

string sProxyServer = "winisp-proxy";

int iProxyPort = 8080;

WebResponse objResponse;

WebRequest objRequest = System.Net.HttpWebRequest.Create(url);

        objRequest.Proxy = new System.Net.WebProxy("http://" + sProxyServer + ":" + iProxyPort + "/", true);

        objResponse = objRequest.GetResponse();

using (StreamReader sr =

new StreamReader(objResponse.GetResponseStream(), System.Text.Encoding.UTF8))

        {

            result = sr.ReadToEnd();

            sr.Close();

        }

return result;

    }

private DriveTime GetTimeDistance(String inputString)

    {

Regex r;

Match m;

DriveTime result = new DriveTime();

int pos = 0;  //track position in string just for slight matching efficiency

// get FROM location

        r = new Regex(@"From:\S*\s*(?<1>[^\<]*)",

RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline);

        m = r.Match(inputString, pos);

if (m.Success)

        {

            result.from = m.Groups[1].ToString().Replace(@"&amp;", @"&");

            pos = m.Index;

        }

// get TO location

        r = new Regex(@"To:\S*\s*(?<1>[^\<]*)",

RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline);

        m = r.Match(inputString, pos);

if (m.Success)

        {

            result.to = m.Groups[1].ToString().Replace(@"&amp;", @"&");

            pos = m.Index;

        }

// get TIME and DISTANCE

        r = new Regex(@"Trip A:\s*(?<1>[^\.]*)[^(]*[(](?<2>[^)]*)",

RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.Singleline);

// though not used now, for loop left here for future multi-segment matching

for (m = r.Match(inputString, pos); m.Success; m = m.NextMatch())

        {

            result.driveTime = m.Groups[1].ToString();

            result.distance = m.Groups[2].ToString();

        }

return result;

    }

}

public class DriveTime

{

public string from;

public string to;

public string driveTime;

public string distance;

}