CSharp and cookies being a pain in my proverbial

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davidcole

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#105855 12-Jul-2012 11:25

So I've had an issue with my Gargoyle 1.5.5 system, where a file I was downloading now requires authentication.

http://www.geekzone.co.nz/forums.asp?forumid=66&topicid=105722

A helpful sidefx found that when you login in to the router a script called \utiltity\get_password_cookie.sh is called with the password= post variables.

So I'm calling this with the correct password, but what I'm not seeing is a "hash" cookie in a HttpWebResponse Cookie collection. What I'm actually getting is a byte array as a return value for webClient.UploadData that contains the Set-Cookie:hash= etc

I then need to try and use this in a subsequent request, but for the life of me cannot get it to work.

Anyone have any pointers?

I can post parts of the code if need be, I've implemented an extended WebClient (CookieAwareWebClient) to deal with the cookies, but at the point that the CookieAwareWebClient is processing the response, the hash cookie does not exist.

Previously known as psycik

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sidefx

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#654815 12-Jul-2012 21:41

If you haven't already solved it, this works, if a bit ugly.

I had to fix 1.5.4 as per this first though: http://www.gargoyle-router.com/phpbb/viewtopic.php?f=12&t=2590

EDIT: What, no [code] tags on geekzone?! :D Also obviously put your password into password=********

using System;
using System.Net;
using System.Text;

namespace GargoyleLogin
{
class Program
{
static void Main()
{
var result = GetCookies("http://192.168.51.1/utility/get_password_cookie.sh", "password=*********");
Console.Out.Write("Cookies: " + result);
var csvResult = HttpGetWithCookies("http://192.168.51.1/bandwidth.csv", result);
Console.Out.Write("csv:\n" + csvResult);
Console.In.ReadLine();
}

private static string GetCookies(string uri, string parameters)
{
var req = WebRequest.Create(uri);
req.ContentType = "application/x-www-form-urlencoded";
req.Method = "POST";
byte[] bytes = Encoding.ASCII.GetBytes(parameters);
req.ContentLength = bytes.Length;
System.IO.Stream os = req.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
os.Close();
WebResponse resp = req.GetResponse();
var sr = new System.IO.StreamReader(resp.GetResponseStream());
var cookies = sr.ReadToEnd().Trim();
return cookies.Replace("Set-Cookie:", "").Replace("path=/", "").Replace("\n", " ");
}

public static string HttpGetWithCookies(string uri, string cookies)
{
var req = WebRequest.Create(uri);
req.Headers["Cookie"] = cookies;
WebResponse resp = req.GetResponse();
var sr = new System.IO.StreamReader(resp.GetResponseStream());
return sr.ReadToEnd().Trim();
}
}
}

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davidcole

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#654817 12-Jul-2012 21:46

Hm. Awesome. I'll try that tomorrow.

davidcole

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#655015 13-Jul-2012 13:00

Worked great thanks!!