Mega Code Archive
Submit a GET or POST request and returns the response as string
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Net.NetworkInformation;
namespace iTunesFastForward
{
static class Utils
{
/// <summary>
/// Submit a GET or POST request and returns the response as string
/// </summary>
/// <param name="uri">Standard URL</param>
/// <param name="args">Arguments without the "?". Can be null</param>
/// <param name="post">POST or not</param>
/// <returns></returns>
public static string SubmitRequestAndGetResponse(string uri, string args, bool post)
{
string userAgent = "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11"; // WINDOWS
//string userAgent = "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.9) Gecko/20071110 Firefox/2.0.0.9"; // LINUX
//string userAgent = "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)"; // GOOGLE BOT
string referer = "http://www.google.com/";
if (!post)
{
WebClient wc = new WebClient();
wc.Headers[HttpRequestHeader.UserAgent] = userAgent;
wc.Headers[HttpRequestHeader.Cookie] = "pass=deleted";
try
{
if (args == null)
return wc.DownloadString(uri);
else
return wc.DownloadString(uri + "?" + args);
}
catch (WebException)
{
return null;
}
}
else
{
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri);
req.Method = WebRequestMethods.Http.Post;
req.ContentType = "application/x-www-form-urlencoded";
// simuler firefox
req.Referer = referer;
req.UserAgent = userAgent;
byte[] bytes = Encoding.Default.GetBytes(args);
req.ContentLength = bytes.Length;
Stream reqStream = req.GetRequestStream();
reqStream.Write(bytes, 0, bytes.Length);
reqStream.Close();
WebResponse resp = req.GetResponse();
Stream newStream = resp.GetResponseStream();
StreamReader sr = new StreamReader(newStream);
string result = sr.ReadToEnd();
sr.Dispose();
newStream.Dispose();
return result;
}
catch (WebException)
{
return null;
}
}
}
/// <summary>
/// Submits a google "I'm feeling lucky" request, in order to directly go to the result page (usefull to avoid search results page)
/// </summary>
/// <param name="uri"></param>
/// <returns></returns>
public static string GoogleFeelingLuckyRequest(string uri)
{
string res = SubmitRequestAndGetResponse(uri, null, false);
if (Regex.IsMatch(res, "Your search .* did not match any documents."))
return null;
else
return res;
}
/// <summary>
/// Shows a message with OK button and Error icon
/// </summary>
/// <param name="text">The text to display</param>
/// <param name="title">The title (caption)</param>
public static void ShowErrorMessage(string text, string title)
{
MessageBox.Show(text, title, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
//[DllImport(@"C:\Windows\System32\wininet.dll")]
//private static extern bool InternetCheckConnection(string url, int flag, int ReservedValue);
//public static bool IsConnectedToInternet { get; set; }
//static Ping _pingSender;
//static PingCompletedEventHandler _completed = new PingCompletedEventHandler(pingSender_PingCompleted);
///// <summary>
///// Checks if the computer is connected to internet
///// </summary>
///// <returns></returns>
//public static void CheckInternetConnection(PingCompletedEventHandler del)
//{
// if (_pingSender != null)
// return;
// else
// _pingSender = new Ping();
// if (del != null)
// _pingSender.PingCompleted += del;
// _pingSender.PingCompleted += _completed;
// // Create a buffer of 32 bytes of data to be transmitted.
// string data = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
// byte[] buffer = Encoding.ASCII.GetBytes(data);
// // Wait 9 seconds for a reply.
// int timeout = 9000;
// // Set options for transmission:
// // The data can go through 64 gateways or routers
// // before it is destroyed, and the data packet
// // cannot be fragmented.
// PingOptions options = new PingOptions(64, true);
// // Send the ping asynchronously.
// // Use the waiter as the user token.
// // When the callback completes, it can wake up this thread.
// _pingSender.SendAsync("google.com", timeout, buffer, null);
//}
//static void pingSender_PingCompleted(object sender, PingCompletedEventArgs e)
//{
// IsConnectedToInternet = !e.Cancelled && e.Error == null;
//}
/// <summary>
/// Remove HTML Tags from a string
/// </summary>
/// <param name="strHTML"></param>
/// <returns></returns>
public static string ClearHTMLTags(string strHTML)
{
Regex regexp = new Regex("<[^>]*>", RegexOptions.IgnoreCase | RegexOptions.Singleline);
return regexp.Replace(strHTML, string.Empty);
}
}
}
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