I was using this code to login and download needed files for about half a year, and now it has started throwing an exception The parameter '{0}' cannot be an empty string. Parameter name: cookie.Domain, I've checked google, it's a popular problem, but I can't understand why? Everything was okay before, and I've not changed any program code, but what could be changed in railwagon cookies so my program can't understand them now?
CookieContainer cookies = new CookieContainer();
CookieAwareWebClient http = new CookieAwareWebClient(cookies);
string sLogin = "name=_______&password=_______&dobav2_login=_______";
http.Headers["Content-type"] = "application/x-www-form-urlencoded";
http.Headers["User-Agent"] = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";
string sResponse = http.UploadString("https://www.railwagonlocation.com/en/index.php", sLogin);
richTextBox1.Text = sResponse;
http.DownloadFile("https://www.railwagonlocation.com/export_excel.php?export_type=vagon_list&l=en", "D:\\my_excel.xlsx");
AwareClient
public class CookieAwareWebClient : WebClient
{
public CookieContainer CookieContainer { get; set; }
public Uri Uri { get; set; }
public CookieAwareWebClient()
: this(new CookieContainer())
{
}
public CookieAwareWebClient(CookieContainer cookies)
{
this.CookieContainer = cookies;
}
protected override WebRequest GetWebRequest(Uri address)
{
WebRequest request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = this.CookieContainer;
}
HttpWebRequest httpRequest = (HttpWebRequest)request;
httpRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
return httpRequest;
}
protected override WebResponse GetWebResponse(WebRequest request)
{
WebResponse response = base.GetWebResponse(request);
String setCookieHeader = response.Headers[HttpResponseHeader.SetCookie];
if (setCookieHeader != null)
{
//do something if needed to parse out the cookie.
if (setCookieHeader != null)
{
Cookie cookie = new Cookie(); //create cookie
this.CookieContainer.Add(cookie);
}
}
return response;
}
}
Error on line
this.CookieContainer.Add(cookie);
Also how we can have cookie.Domain parameter here
Cookie cookie = new Cookie(); //create cookie
this.CookieContainer.Add(cookie);
if we just created new cookie?
Well, all you do is create an empty cookie, you didn't set a domain, name or value and that's what the CookieContainer checks when you attempt to add it. So one solution would be to set the values for that cookie.
However, since you already reference the CookieContainer when in your GetRequest override you don't have to do anything with the Set-Cookie Header you get with the Response, the CookieContainer should already have those cookies added.
Related
I'm trying to convert a WPF application to UWP but am struggeling on how to get the conenction to work.
The WPF application connects to a website, get cookies, read a token from html and then post data to login.
In WPF I had this class:
// CookieAwareWebClient.cs
public class CookieAwareWebClient : WebClient
{
public string Method;
public CookieContainer CookieContainer { get; set; }
public CookieAwareWebClient()
: this(new CookieContainer())
{
}
public CookieAwareWebClient(CookieContainer cookies)
{
this.CookieContainer = cookies;
}
protected override WebRequest GetWebRequest(Uri address)
{
WebRequest request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = this.CookieContainer;
(request as HttpWebRequest).ServicePoint.Expect100Continue = false;
(request as HttpWebRequest).UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0";
(request as HttpWebRequest).Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
(request as HttpWebRequest).KeepAlive = true;
(request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.Deflate |
DecompressionMethods.GZip;
if (Method == "POST")
{
(request as HttpWebRequest).ContentType = "application/x-www-form-urlencoded";
}
}
HttpWebRequest httpRequest = (HttpWebRequest)request;
httpRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
return httpRequest;
}
protected override WebResponse GetWebResponse(WebRequest request)
{
WebResponse response = base.GetWebResponse(request);
String setCookieHeader = response.Headers[HttpResponseHeader.SetCookie];
if (setCookieHeader != null)
{
try
{
if (setCookieHeader != null)
{
Cookie cookie = new Cookie(); //create cookie
this.CookieContainer.Add(cookie);
}
}
catch (Exception)
{
}
}
return response;
}
}
,that is used like this:
// Program.cs
// ...
CookieAwareWebClient client = new CookieAwareWebClient(cookieJar);
string response = client.DownloadString("LINK TO WEBSITE TO GET COOKIES");
// Get the csrf token from response html
var tokenValue = Regex.Match(response, "name='csrf_token'
value='(.+?)'").Groups[1].Value;
// Prepare values to send
string token = $"csrf_token={tokenValue}&";
string email = $"email={email}&";
string password = $"password={password}&";
string rememberme = $"rememberme=on&";
string submit = $"submit=Login";
string postData = token + email + password + rememberme + submit;
client.Method = "POST";
response = client.UploadString("LINK TO LOGIN ACTION", postData);
This works flawless in WPF. How can I achieve someting like this in UWP?
I tried using HttpClient, but I either get bad response, javascript doesnt load, or I can't read the response.
So far, I tried to just connect to the normal site and read the html, to get the token. But I get a response error.
var handler = new HttpClientHandler { AllowAutoRedirect = true };
var client = new HttpClient(handler);
client.DefaultRequestHeaders.TryAddWithoutValidation("UserAgent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0");
client.DefaultRequestHeaders.TryAddWithoutValidation("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
client.DefaultRequestHeaders.TryAddWithoutValidation("KeepAlive", "true");
client.DefaultRequestHeaders.TryAddWithoutValidation("ServicePoint.Expect100Continue", "false");
var response = await client.GetAsync(new Uri("LINK"));
// ERROR => System.Net.Http.HttpRequestException: "Response status code does not indicate success: 503 ()."
response.EnsureSuccessStatusCode();
var html = await response.Content.ReadAsStringAsync();
You need to add a CookieContainer to the handler in order to be able to access the cookies return from the request
//have a cookie container before making the request
var cookies = new CookieContainer();
var handler = new HttpClientHandler() {
AllowAutoRedirect = true,
CookieContainer = cookies,
AutomaticDecompression = DecompressionMethods.Deflate | DecompressionMethods.GZip,
};
//Handle TLS protocols (https)
System.Net.ServicePointManager.SecurityProtocol =
System.Net.SecurityProtocolType.Tls
| System.Net.SecurityProtocolType.Tls11
| System.Net.SecurityProtocolType.Tls12;
var client = new HttpClient(handler);
client.DefaultRequestHeaders.TryAddWithoutValidation("UserAgent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0");
client.DefaultRequestHeaders.TryAddWithoutValidation("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
client.DefaultRequestHeaders.TryAddWithoutValidation("KeepAlive", "true");
client.DefaultRequestHeaders.TryAddWithoutValidation("ServicePoint.Expect100Continue", "false");
var uri = new Uri("Link");
var response = await client.GetAsync(uri);
var html = await response.Content.ReadAsStringAsync();
// Get the csrf token from response html
var tokenValue = Regex.Match(html, "name='csrf_token' value='(.+?)'").Groups[1].Value;
//...Prepare values to send
I was trying to log in to my WordPress admin panel using C# (WebClient/HttpWebRequest).
I send a POST request to /wp-login.php.
It responds with cookies like this:
Set-Cookie: wordpress_26...cf9e; path=/wordpress/wp-content/plugins; httponly
Set-Cookie: wordpress_26...cf9e; path=/wordpress/wp-admin; httponly
Set-Cookie: wordpress_logged_in_26...43b3; path=/wordpress/; httponly
And it also redirects to /wp-admin/: Location: http://109.120.169.99/wordpress/wp-admin/
The problem is that the second cookie (with path=/wp-admin) is not added to CookieContainer, so login fails.
I looked into HttpWebRequest source code and http://referencesource.microsoft.com/#System/net/System/Net/_CookieModule.cs (OnReceiveHeaders) and found out that it uses ResponseUri for all cookies.
I tried to add the cookie manually using response uri and got an exception that path is invalid. After that I found this answer CookieException with CookieContainer: The 'Path' part of the cookie is invalid : it says that the Uri has to match the path from the cookie when adding to CookieContainer.
I ended up disabling AllowAutoRedict (handling it manually) and manually adding these cookies.
Here is my code:
public static void Auth(string url, string username, string password)
{
var webClient = new CookieAwareWebClient();
// load page to get some cookies
string loginPageHtml = webClient.DownloadString(url);
webClient.Headers.Add(HttpRequestHeader.ContentType, "application/x-www-form-urlencoded");
webClient.Headers.Add(HttpRequestHeader.Referer, url);
var postValues = new NameValueCollection()
{
{"log", username},
{"pwd", password},
{"wp-sumbit", "Log In"},
{"redirect_to", url.Replace("wp-login.php", "wp-admin/") },
{"testcookie", "1"}
};
webClient.AllowRedirects = false; // to handle cookies and redirect manually
byte[] response = webClient.UploadValues(url, postValues);
string html = Encoding.UTF8.GetString(response);
// <FIX>, handle cookies and redirect manually
string cookies = webClient.ResponseHeaders[HttpResponseHeader.SetCookie];
var cookiesArr = cookies.Split(',');
foreach (var cookieStr in cookiesArr)
{
var parts = cookieStr.Split(';').Select(s => s.Trim());
foreach (var part in parts)
{
if (part.Contains("path="))
{
string path = part.Replace("path=", "");
var uri = new Uri(url);
if (path != "/" && !uri.LocalPath.Contains(path))
{
var uriBuilder = new UriBuilder(uri.Scheme, uri.Host, 80,
path);
webClient.CookieContainer.SetCookies(uriBuilder.Uri, cookieStr);
}
}
}
}
// </FIX>
while (webClient.StatusCode() == HttpStatusCode.Redirect)
{
string redirectUrl = webClient.ResponseHeaders[HttpResponseHeader.Location];
html = webClient.DownloadString(redirectUrl);
}
if (html.Contains("?action=logout"))
Console.WriteLine("Login success");
else
Console.WriteLine("Login fail");
}
WebClient:
// WebClient with CookieContainer
public class CookieAwareWebClient : WebClient
{
private WebRequest _request = null;
private WebResponse _response = null;
public CookieContainer CookieContainer { get; private set; }
public string UserAgent { get; set; }
public bool AllowRedirects { get; set; }
public CookieAwareWebClient()
{
UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.76 Safari/537.36";
CookieContainer = new CookieContainer();
AllowRedirects = true;
}
protected override WebRequest GetWebRequest(Uri address)
{
_request = base.GetWebRequest(address);
if (_request is HttpWebRequest)
{
var httpRequest = (HttpWebRequest)_request;
httpRequest.CookieContainer = CookieContainer;
httpRequest.UserAgent = UserAgent;
httpRequest.AllowAutoRedirect = AllowRedirects;
httpRequest.ProtocolVersion = HttpVersion.Version11;
httpRequest.Timeout = 50000;
}
return _request;
}
protected override WebResponse GetWebResponse(WebRequest request)
{
_response = base.GetWebResponse(request);
return _response;
}
// Returns status code of the last response
public HttpStatusCode StatusCode()
{
var httpResponse = _response as HttpWebResponse;
if (httpResponse == null)
throw new InvalidOperationException("Unable to retrieve the status code, maybe you have not made a request yet.");
var result = httpResponse.StatusCode;
return result;
}
}
I also tried using .NET 4.5 HttpClient but the same result (I think it uses HttpWebRequest underneath too):
public static void Auth2(string url, string username, string password)
{
using (var httpClient = new HttpClient())
{
var loginPageHtml = httpClient.GetStringAsync(url).Result;
var postContent = new List<KeyValuePair<string, string>>()
{
new KeyValuePair<string, string>("log", username),
new KeyValuePair<string, string>("pwd", password),
new KeyValuePair<string, string>("wp-submit", "Log In"),
new KeyValuePair<string, string>("redirect_to", url.Replace("wp-login.php", "wp-admin/")),
new KeyValuePair<string, string>("testcookie", "1")
};
var response = httpClient.PostAsync(url, new FormUrlEncodedContent(postContent)).Result;
string html = response.Content.ReadAsStringAsync().Result;
if (html.Contains("?action=logout"))
Console.WriteLine("Login success");
else
Console.WriteLine("Login fail");
}
}
Am I doing something wrong or is it a bug in HttpWebRequest/CookieContainer?
Here is the full source code for convenience if someone wants to test it: https://gist.github.com/AlexP11223/5c176972426605ee2112 (my test website and login/password also should work)
And Fiddler logs:
http://1drv.ms/1qyAgGi — webbrowser (Chrome), it adds this cookie
http://1drv.ms/1kqsLDI — WebClient
http://1drv.ms/1kqsC2Y —
HttpClient
I'm trying to do the following:
send a GET request to fetch a login page (which prompts for username, password, and sets a cookie)
build a POST request that sends the cookie from #1 and a body of the username/password (this returns a Set-Cookie and redirects to the website's landing page for logged in users)
My trouble is with the 302 redirect. The webserver is returning a 302 with a Set-Cookie, but when the HttpWebRequests auto-redirects, it doesn't pass along the now updated cookie. To get around that, I'm trying to set .AllowAutoRedirect = false, saving the cookies in a CookieCollection, then building a 3rd HTTP request: a GET to the final 302 location. Unfortunately, I can't set the cookies on this request. I'm not sure why and it's driving me mad.
The HTTP requests are, in order, named request, postRequest, redirectRequest.
string loginGetUrl = "https://<..>/signin.htm";
string loginPostUrl = "https://<..>/j_acegi_security_check";
string loginRedirectUrl = "https://<..>/centraladmin/poslinks.htm";
string postData = String.Format("j_username={0}&j_password={1}", username, password);
CookieCollection cookies = new CookieCollection();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(loginGetUrl);
request.CookieContainer = new CookieContainer();
request.CookieContainer.Add(cookies);
//Get the response from the server and save the cookies from the first request..
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
cookies = response.Cookies;
HttpWebRequest postRequest = (HttpWebRequest)WebRequest.Create(loginPostUrl);
postRequest.CookieContainer = new CookieContainer();
// Add the received Cookies from the HTTP Get
postRequest.CookieContainer.Add(cookies);
postRequest.Method = WebRequestMethods.Http.Post;
postRequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2";
postRequest.AllowWriteStreamBuffering = false;
postRequest.ProtocolVersion = HttpVersion.Version11;
postRequest.AllowAutoRedirect = false;
postRequest.ContentType = "application/x-www-form-urlencoded";
byte[] byteArray = Encoding.ASCII.GetBytes(postData);
postRequest.ContentLength = byteArray.Length;
Stream newStream = postRequest.GetRequestStream(); //open connection
newStream.Write(byteArray, 0, byteArray.Length); // Send the data.
newStream.Close();
HttpWebResponse postResponse = (HttpWebResponse)postRequest.GetResponse();
// Save the cookies from the POST login request, then send them on to the redirected URL
cookies = postResponse.Cookies;
HttpWebRequest redirectRequest = (HttpWebRequest)WebRequest.Create(loginRedirectUrl);
redirectRequest.CookieContainer = new CookieContainer();
// add cookies from POST
redirectRequest.CookieContainer.Add(cookies);
HttpWebResponse redirectResponse = (HttpWebResponse)redirectRequest.GetResponse();
At redirectRequest.CookieContainer.Add(cookies);, the cookies object contains the correct cookie. But when I look with Fiddler, I only see this info:
GET https://<...>/centraladmin/poslinks.htm HTTP/1.1
Host: host:port
I'm kind of banging my head on the wall at this point. Any suggestions? Am I referencing something wrong? Beware, I don't usually write C# code
I wasn't able to resolve this on my own, but did find a useful code snippet from this blog post by #malte-clasen. The code is on Github and I've attached it here for retention.
I removed the async components as it wasn't necessary in my code.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
namespace DracWake.Core
{
public class WebClient : IWebClient
{
private readonly CookieContainer _cookies = new CookieContainer();
private HttpWebRequest CreateRequest(Uri uri)
{
var request = HttpWebRequest.CreateHttp(uri);
request.AllowAutoRedirect = false;
request.CookieContainer = _cookies;
SetHeaders(request);
var defaultValidator = System.Net.ServicePointManager.ServerCertificateValidationCallback;
request.ServerCertificateValidationCallback =
(sender, certificate, chain, sslPolicyErrors) =>
certificate.Subject.Contains("O=DO_NOT_TRUST, OU=Created by http://www.fiddler2.com")
|| (certificate.Subject == "CN=DRAC5 default certificate, OU=Remote Access Group, O=Dell Inc., L=Round Rock, S=Texas, C=US")
|| (defaultValidator != null && defaultValidator(request, certificate, chain, sslPolicyErrors));
return request;
}
private async Task<string> DecodeResponse(HttpWebResponse response)
{
foreach (System.Net.Cookie cookie in response.Cookies)
{
_cookies.Add(new Uri(response.ResponseUri.GetLeftPart(UriPartial.Authority)), cookie);
}
if (response.StatusCode == HttpStatusCode.Redirect)
{
var location = response.Headers[HttpResponseHeader.Location];
if (!string.IsNullOrEmpty(location))
return await Get(new Uri(location));
}
var stream = response.GetResponseStream();
var buffer = new System.IO.MemoryStream();
var block = new byte[65536];
var blockLength = 0;
do{
blockLength = stream.Read(block, 0, block.Length);
buffer.Write(block, 0, blockLength);
}
while(blockLength == block.Length);
return Encoding.UTF8.GetString(buffer.GetBuffer());
}
public async Task<string> Get(Uri uri)
{
var request = CreateRequest(uri);
var response = (HttpWebResponse) await request.GetResponseAsync();
return await DecodeResponse(response);
}
private void SetHeaders(HttpWebRequest request)
{
request.Accept = "text/html, application/xhtml+xml, */*";
request.UserAgent = "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers[HttpRequestHeader.AcceptLanguage] = "en-US,en;q=0.8,de-DE;q=0.5,de;q=0.3";
request.Headers[HttpRequestHeader.AcceptEncoding] = "gzip, deflate";
request.Headers[HttpRequestHeader.CacheControl] = "no-cache";
}
public async Task<string> Post(Uri uri, byte[] data)
{
var request = CreateRequest(uri);
request.Method = "POST";
request.GetRequestStream().Write(data, 0, data.Length);
var response = (HttpWebResponse) await request.GetResponseAsync();
return await DecodeResponse(response);
}
}
}
The DecodeResponse resolved my problem.
I want to post data to a website. I handle the cookies with this code :
CookieCollection cookies = new CookieCollection();
request.CookieContainer = new CookieContainer();
request.CookieContainer.Add(cookies); HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
I handle viewstate value with this code:
var doc = new HtmlAgilityPack.HtmlDocument();
doc.Load(resp.GetResponseStream());
foreach (HtmlNode input in doc.DocumentNode.SelectNodes("//input"))
{
if (input.Attributes["value"] != null)
{
val = input.Attributes["value"].Value;
if (val.IndexOf("1")!=-1)
{
viewState = val;
}
}
}
and finally I'm posting data with this code:
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
cookies = response.Cookies;
response.Close();
string getUrl = "url";
string postData = String.Format(""+viewstate);
HttpWebRequest getRequest = (HttpWebRequest)WebRequest.Create(getUrl);
getRequest.CookieContainer = new CookieContainer();
getRequest.CookieContainer.Add(cookies);
My main problem is viewState because if I don't post viewstate it returns me the same page or if I parse viewstate value before the posting data and post with data it returns me your session timed out. For example I'm able to login facebook but I could not post data to website which uses viewState. I couldn't figure out this situation. I think I have to parse viewstate in the same request with post but I know that webrequest can not be reused. Can you help me?
I'm using CsQuery lib. It's helpful and easy to use. https://www.nuget.org/packages/CsQuery
Use some class like that:
public class WebClientEx : WebClient
{
public CookieContainer _cookies = new CookieContainer();
public string Get(string URL)
{
return this.DownloadString(URL);
}
public WebClientEx()
{
this.Encoding = Encoding.UTF8;
System.Net.ServicePointManager.Expect100Continue = false;
}
protected override WebRequest GetWebRequest(Uri address)
{
var request = (HttpWebRequest)base.GetWebRequest(address);
request.Host = "apps.db.ripe.net";
request.UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0";
request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
request.KeepAlive = true;
request.Proxy = new WebProxy();
request.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;
request.CookieContainer = _cookies;
request.Headers.Add("Accept-Language", "en-us;q=0.7,en;q=0.3");
request.ContentType = "application/x-www-form-urlencoded";
return request;
}
public string Post(string URL, NameValueCollection data)
{
return this.Encoding.GetString(this.UploadValues(URL, data));
}
}
Setup the post parameters as you want.
Then just do:
WebClientEx client = new WebClientEx();
string Page = client.Get("https://apps.db.ripe.net/syncupdates/simple-rpsl.html"); //get some cookies and viewstate
CQ dom = CQ.Create(Page);
string viewstate = dom["input#javax\\.faces\\.ViewState"].Val(); //get viewstate
NameValueCollection data = new NameValueCollection();
data.Add("rpslBox:postRpsl", "rpslBox:postRpsl");
data.Add("rpslBox:postRpsl:sourceRadioSelect", "RIPE_NCC");
data.Add("rpslBox:postRpsl:rpslObject", "your some string"); //your string
data.Add("rpslBox:postRpsl:update", "Update");
data.Add("javax.faces.ViewState", viewstate);
Page = client.Post("https://apps.db.ripe.net/syncupdates/simple-rpsl.html", data);
Alright, so I've got a function I wrote that should allow me to post data with cookies. The problem is is I'm testing it out on an Amazon login page, and it keeps responding saying I need cookies enabled. Here's the code
public string DoPost(String url, PostData data, CookieContainer cookies)
{
HttpWebRequest objWebRequest = (HttpWebRequest)WebRequest.Create(url);
objWebRequest.CookieContainer = cookies;
objWebRequest.AllowAutoRedirect = true;
objWebRequest.UserAgent = "Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)";
if(data != null)
{
String post = data.ToString();
objWebRequest.Method = "POST";
objWebRequest.ContentLength = post.Length;
objWebRequest.ContentType = "application/x-www-form-urlencoded";
// Post to the login form.
using(StreamWriter swRequestWriter = new StreamWriter(objWebRequest.GetRequestStream()))
{
swRequestWriter.Write(post);
}
}
// Get the response.
HttpWebResponse objWebResponse =
(HttpWebResponse)objWebRequest.GetResponse();
// Read the response
using(StreamReader srResponseReader = new StreamReader(objWebResponse.GetResponseStream()))
{
string strResponseData = srResponseReader.ReadToEnd();
return strResponseData;
}
}
And I call it like this
String action = "https://www.amazon.com/gp/flex/sign-in/select.html";
String s = DoPost(action, null, Cookies);
Cookies is created in my class constructer like this
CookieContainer Cookies;
public Constructz0r()
{
Cookies = new CookieContainer();
}
The thing is, I'm not even posting any post data, I'm just going to the page, and it's saying my cookies aren't enabled, though I feel I've done it write in DoPost.
I've even tried using this implementation of WebClient
public class CookieWebClient : WebClient
{
private CookieContainer _cookieContainer = new CookieContainer();
protected override WebRequest GetWebRequest(Uri address)
{
WebRequest request = base.GetWebRequest(address);
if (request is HttpWebRequest)
{
(request as HttpWebRequest).CookieContainer = _cookieContainer;
}
return request;
}
}
And calling it like this
using(CookieWebClient ck = new CookieWebClient())
{
String s = ck.DownloadString(action);
}
And it still tells me the cookies aren't enabled.
Amazon have an API to access their services (SOAP). So instead of trying to do some scraping I would strongly recommend you using their API.