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C# - Sending and receiving HTTP Requests to REST service

So I'm writing the client side user authentication code for my Web API ReST service.
This is how the request and response should look like and I've written this code to register a user and it works fine.
Http Request:
POST https://localhost:44305/api/Account/Register HTTP/1.1
Host: localhost:44305
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0
Accept: */*
Content-Type: application/json; charset=utf-8
X-Requested-With: XMLHttpRequest
Referer: https://localhost:44305/
Content-Length: 84
{"Email":"alice#example.com","Password":"Password1!","ConfirmPassword":"Password1!"}
Http Response:
HTTP/1.1 200 OK
Server: Microsoft-IIS/8.0
Date: Wed, 01 Oct 2014 00:57:58 GMT
Content-Length: 0
Code to accomplish this:
byte[] data = Encoding.UTF8.GetBytes("{\"Email\":\"alssice#example.com\"," + "\"Password\":\"Password1!\"," + "\"ConfirmPassword\":\"Password1!\"}");
WebRequest request = WebRequest.Create("http://localhost:8091/api/Account/Register");
request.Method = "POST";
request.ContentType = "application/json; charset=utf-8";
request.ContentLength = data.Length;
using (Stream stream = request.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
string responseContent = null;
using (WebResponse response = request.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
using (StreamReader sr99 = new StreamReader(stream))
{
responseContent = sr99.ReadToEnd();
}
}
}
Console.WriteLine(responseContent);
This works fine and the user account is created in the database but I don't get the response.
The next problem is sending sending the login details to get a bearer token? How can I do this?
This is what the request and response should look like
HTTP REQUEST FOR AUTHENTICATION:
POST https://localhost:44305/Token HTTP/1.1
Host: localhost:44305
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0
Accept: */*
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With: XMLHttpRequest
Referer: https://localhost:44305/
Content-Length: 68
grant_type=password&username=alice%40example.com&password=Password1!
HTTP RESPONSE FOR AUTHENTICATION:
HTTP/1.1 200 OK
Content-Length: 669
Content-Type: application/json;charset=UTF-8
Server: Microsoft-IIS/8.0
Date: Wed, 01 Oct 2014 01:22:36 GMT
{
"access_token":"imSXTs2OqSrGWzsFQhIXziFCO3rF...",
"token_type":"bearer",
"expires_in":1209599,
"userName":"alice#example.com",
".issued":"Wed, 01 Oct 2014 01:22:33 GMT",
".expires":"Wed, 15 Oct 2014 01:22:33 GMT"
}
SO how can I send a request for a token?

I'd kindly like to suggest you using HttpClient if you're going for your own http rest client in your app.
Solution using HttpClient and Json.net:
public class TokenResponse
{
public string access_token { get; set; }
public string token_type { get; set; }
public int expires_in { get; set; }
public string userName { get; set; }
public string issued { get; set; }
public string expires { get; set; }
}
private async Task Login()
{
using (var client = new HttpClient())
{
client.BaseAddress = new Uri("https://localhost:44305");
var content = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("grant_type", "password"),
new KeyValuePair<string, string>("username", "alice#example.com"),
new KeyValuePair<string, string>("password", "password1")
});
var result = await client.PostAsync("/token", content);
string resultContent = await result.Content.ReadAsStringAsync();
var tokenResponse = JsonConvert.DeserializeObject<TokenResponse>(resultContent);
}
}
And if you need to use HttpWebRequest:
If this is the case, your solution might look something like the following.
private void Login()
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create("https://localhost:44305/Token");
request.Method = "POST";
request.AllowAutoRedirect = false;
request.Accept = "*/*";
request.ContentType = "application/x-www-form-urlencoded; charset=UTF-8";
StringBuilder postData = new StringBuilder();
postData.Append("grant_type=" + HttpUtility.UrlEncode("password") + "&");
postData.Append("username=" + HttpUtility.UrlEncode("alice#example.com") + "&");
postData.Append("password=" + HttpUtility.UrlEncode("password"));
using (StreamWriter stOut = new StreamWriter(request.GetRequestStream(), Encoding.UTF8))
{
stOut.Write(postData);
stOut.Close();
}
}
Update
Now Im not sure where and how you are trying this. If you're invoking this from a console application main method, make sure the following so you don't have to come back to the same asynchronous context and this should always be invoked from an async method itself:
var result = await client.PostAsync("https://localhost:44305/token", content).ConfigureAwait(false);
I updated my solution in a github gist. It's working for me as it's trying to post the request right away.

Downloading data with broken header

I just got the following problem:
I need to download data which is behind a login page. When I however make my get request, the server is providing bad data - the content is there, but no content length in header set, its an empty field. I looked it up with Fiddler, and its the same when I try to download the file with browser, but browser completes the download ok, while C# drops with exception when getting the response object from my request.
The header looks like this :
HTTP/1.1 200 OK
Date: Sat, 06 Dec 2014 11:55:06 GMT
Server: Apache
Content-Disposition: attachment; filename=;
Pragma: no-cache
Expires: 0
Content-Length:
X-Powered-By: PleskLin
Connection: close
Content-Type: application/octet-stream
Hersteller;"Hersteller Art-Nr";"Lieferant Art-Nr";Ma�stab;Bezeichnung;EAN;"EK (netto)";UVP;USt;Verkaufseinheit;Hinweis;"Letzte Pro...
My code looks like this
public string ReadPage(string path, string method = "GET"){
var result = "";
var request = (HttpWebRequest)WebRequest.Create(path);
request.Method = method;
request.Host = "somehost.de";
request.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);
request.Referer = #"http://somehost.de/login.php?redir=list.php%3Ftype%3Dmm";
request.AllowAutoRedirect = true;
request.Headers.Add("Cookie", LoginCookie);
try
{
var response = request.GetResponse();
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
result = sr.ReadToEnd();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
//throw;
}
return result;
}
The exception appears in the var response = request.GetResponse(); line. Any idea how to fix this problem? I just want it to carry on and let me read out the data.
Forgot the exception - its a WebException with a message
The server committed a protocol violation. Section=ResponseHeader Detail='Content-Length' header value is invalid

I'm really loving the answer of Matthew: .Net HttpWebRequest.GetResponse() raises exception when http status code 400 (bad request) is returned
litte bit changed
public static class WebRequestExtensions
{
public static WebResponse GetWEResponse(this WebRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
try
{
return request.GetResponse();
}
catch (WebException e)
{
return e.Response;
}
}
}
You can use this now by using request.GetWEResponse
public string ReadPage(string path, string method = "GET") {
var result = "";
var request = (HttpWebRequest)WebRequest.Create(path);
request.Method = method;
request.Host = "somehost.de";
request.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);
request.Referer = #"http://somehost.de/login.php?redir=list.php%3Ftype%3Dmm";
request.AllowAutoRedirect = true;
request.Headers.Add("Cookie", LoginCookie);
try
{
var response = request.GetWEResponse();
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
result = sr.ReadToEnd();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
//throw;
}
return result;
}
or better
public string ReadPage(string path, string method = "GET")
{
var request = (HttpWebRequest)WebRequest.Create(path);
request.Method = method;
request.Host = "somehost.de";
request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
request.Referer = #"http://somehost.de/login.php?redir=list.php%3Ftype%3Dmm";
request.AllowAutoRedirect = true;
request.Headers.Add("Cookie", LoginCookie);
using (var response = (HttpWebResponse)request.GetWEResponse())
using (var reader = new StreamReader(response.GetResponseStream()))
{
return reader.ReadToEnd();
}
}

HttpWebReponse Cookies Not Setting For Redirect

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.

Internal server error on webresponse while posting data but works using a browser C#

I am trying to post a form using HttpWebRequest but get an internal server error. I have tried setting useragent in the request but no success.
Here is the url which has got the form.
https://portal.llg.de/tracking/xml/sender.asp?cust=anonym_
and this is my sample code
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
namespace postdata
{
public class RequestManager
{
public static string LastResponse { protected set; get; }
public static void Main(string[] args)
{
System.Net.ServicePointManager.Expect100Continue = false;
string content = "XML=<VORGANG><KUNDE>6400320</KUNDE><LIEFADR>..... Tokio, Japan</LIEFADR><POS NUMMER='1'><ARTNR>9000032</ARTNR><MENGE>10</MENGE><BESTAND>25</BESTAND></POS><POS NUMMER='2'><ARTNR>9161161</ARTNR><MENGE>100</MENGE><BESTAND>33</BESTAND><TERMIN>20050401</TERMIN><PREIS>80.00</PREIS></POS><VERSAND>80.00</VERSAND></VORGANG>";
string url = "https://portal.llg.de/tracking/xml/receiver.asp?cust=_anonym_";
var response = SendPOSTRequest(url, content, true);
var responsecontent = GetResponseContent(response);
}
public static string GetResponseContent(HttpWebResponse response)
{
if (response == null)
{
throw new ArgumentNullException("response");
}
Stream dataStream = null;
StreamReader reader = null;
string responseFromServer = null;
try
{
// Get the stream containing content returned by the server.
dataStream = response.GetResponseStream();
// Open the stream using a StreamReader for easy access.
reader = new StreamReader(dataStream);
// Read the content.
responseFromServer = reader.ReadToEnd();
// Cleanup the streams and the response.
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (reader != null)
{
reader.Close();
}
if (dataStream != null)
{
dataStream.Close();
}
response.Close();
}
LastResponse = responseFromServer;
return responseFromServer;
}
public static HttpWebResponse SendPOSTRequest(string uri, string content, bool allowAutoRedirect)
{
HttpWebRequest request = GeneratePOSTRequest(uri, content, allowAutoRedirect);
return GetResponse(request);
}
public static HttpWebRequest GeneratePOSTRequest(string uri, string content, bool allowAutoRedirect)
{
return GenerateRequest(uri, content, "POST", null, null, allowAutoRedirect);
}
internal static HttpWebRequest GenerateRequest(string uri, string content, string method, string login, string password, bool allowAutoRedirect)
{
if (uri == null)
{
throw new ArgumentNullException("uri");
}
// Create a request using a URL that can receive a post.
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
// Set the Method property of the request to POST.
request.Method = method;
// Set cookie container to maintain cookies
// request.CookieContainer = cookies;
request.AllowAutoRedirect = false;
// If login is empty use defaul credentials
if (string.IsNullOrEmpty(login))
{
// request.Credentials = CredentialCache.DefaultNetworkCredentials;
request.Credentials = CredentialCache.DefaultCredentials;
}
else
{
request.Credentials = new NetworkCredential(login, password);
}
if (method == "POST")
{
// Convert POST data to a byte array.
byte[] byteArray = Encoding.UTF8.GetBytes(content);
// Set the ContentType property of the WebRequest.
request.ContentType = "application/x-www-form-urlencoded";
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)";
// Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length;
// Get the request stream.
Stream dataStream = request.GetRequestStream();
// Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length);
// Close the Stream object.
dataStream.Close();
}
return request;
}
internal static HttpWebResponse GetResponse(HttpWebRequest request)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)request.GetResponse();
}
catch (WebException ex)
{
Console.WriteLine("Web exception occurred. Status code: {0}", ex.Status);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return response;
}
}
}

I debugged with fiddler both posts.
Something is weird in the form post. The xml conatains "+" between the tags.
If you use this string the post works.
content = "XML=<VORGANG><KUNDE>6400320</KUNDE><LIEFADR>.....+Tokio,+Japan</LIEFADR><POS+NUMMER=\"1\">++<ARTNR>9000032</ARTNR>++<MENGE>10</MENGE>++<BESTAND>25</BESTAND></POS><POS+NUMMER=\"2\">++<ARTNR>9161161</ARTNR>++<MENGE>100</MENGE>++<BESTAND>33</BESTAND>++<TERMIN>20050401</TERMIN>++<PREIS>80.00</PREIS></POS><VERSAND>80.00</VERSAND></VORGANG>";
Fiddler Debug:
POST https://portal.llg.de/tracking/xml/receiver.asp?cust=_anonym_ HTTP/1.1
Host: portal.llg.de
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: de,en-us;q=0.7,en;q=0.3
Accept-Encoding: gzip, deflate
DNT: 1
Referer: https://portal.llg.de/tracking/xml/sender.asp?cust=anonym_
Cookie: ASPSESSIONIDSQSACSTQ=CIGFABLBPHPMLBDOPJIKPHJB
Connection: keep-alive
Content-Type: application/x-www-form-urlencoded
Content-Length: 588
XML=%3CVORGANG%3E%0D%0A%3CKUNDE%3E6400320%3C%2FKUNDE%3E%0D%0A%3CLIEFADR%3E.....+Tokio%2C+Japan%3C%2FLIEFADR%3E%0D%0A%3CPOS+NUMMER%3D%221%22%3E%0D%0A++%3CARTNR%3E9000032%3C%2FARTNR%3E%0D%0A++%3CMENGE%3E10%3C%2FMENGE%3E%0D%0A++%3CBESTAND%3E25%3C%2FBESTAND%3E%0D%0A%3C%2FPOS%3E%0D%0A%3CPOS+NUMMER%3D%222%22%3E%0D%0A++%3CARTNR%3E9161161%3C%2FARTNR%3E%0D%0A++%3CMENGE%3E100%3C%2FMENGE%3E%0D%0A++%3CBESTAND%3E33%3C%2FBESTAND%3E%0D%0A++%3CTERMIN%3E20050401%3C%2FTERMIN%3E%0D%0A++%3CPREIS%3E80.00%3C%2FPREIS%3E%0D%0A%3C%2FPOS%3E%0D%0A%3CVERSAND%3E80.00%3C%2FVERSAND%3E%0D%0A%3C%2FVORGANG%3E%0D%0A
if you use url decode to decode the xml="..:"
you get this:
XML=<VORGANG>
<KUNDE>6400320</KUNDE>
<LIEFADR>.....+Tokio,+Japan</LIEFADR>
<POS+NUMMER="1">
++<ARTNR>9000032</ARTNR>
++<MENGE>10</MENGE>
++<BESTAND>25</BESTAND>
</POS>
<POS+NUMMER="2">
++<ARTNR>9161161</ARTNR>
++<MENGE>100</MENGE>
++<BESTAND>33</BESTAND>
++<TERMIN>20050401</TERMIN>
++<PREIS>80.00</PREIS>
</POS>
<VERSAND>80.00</VERSAND>
</VORGANG>

How do I duplicate this JavaScript in C#

Here is the JavaScript
function ChangeVol(id)
{
document.form.selectFS_devId.value = id;
document.form.selectFS_currentNameSpace.value = "";
document.form.submit();
}
function ChangeEvsVol(id, vNodeId)
{
document.form.selectFS_evsId.value = vNodeId;
document.form.selectFS_currentNameSpace.value = "";
ChangeVol(id);
}
document.form.selectFS_devId.value = "all"
document.form.selectFS_evsId.value = "2"
Here is the current C# code I'm using
Uri url = new Uri("https://mgr/app");
HttpWebRequest request = null;
ServicePointManager.ServerCertificateValidationCallback =
((sender, certificate, chain, sslPolicyErrors) => true);
CookieContainer cookieJar = new CookieContainer();
request = (HttpWebRequest)WebRequest.Create(url);
request.CookieContainer = cookieJar;
request.Method = "GET";
HttpStatusCode responseStatus;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
responseStatus = response.StatusCode;
url = request.Address;
}
if (responseStatus == HttpStatusCode.OK)
{
UriBuilder urlBuilder = new UriBuilder(url);
urlBuilder.Path =
urlBuilder.Path.Remove(urlBuilder.Path.LastIndexOf('/')) +
"/j_security_check";
request = (HttpWebRequest)WebRequest.Create(urlBuilder.ToString());
request.Referer = url.ToString();
request.CookieContainer = cookieJar;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
using (Stream requestStream = request.GetRequestStream())
using (StreamWriter requestWriter = new StreamWriter(requestStream, Encoding.ASCII))
{
string postData = "j_username=user&j_password=user&submit=Send";
requestWriter.Write(postData);
}
string responseContent = null;
string myTargetString = "https://mgr/app/action/storage.VivolAction/eventsubmit_dopreparevivollist/ignored/f5/true";
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
using (Stream responseStream = response.GetResponseStream())
using (StreamReader responseReader = new StreamReader(responseStream))
{
responseContent = responseReader.ReadToEnd();
}
Console.WriteLine(responseContent);
request = (HttpWebRequest)WebRequest.Create(myTargetString);
request.Method = "GET";
request.CookieContainer = cookieJar;
using (HttpWebResponse responsedownload = (HttpWebResponse)request.GetResponse())
using (Stream responseStream = responsedownload.GetResponseStream())
using (StreamReader responseReader = new StreamReader(responseStream))
{
responseContent = responseReader.ReadToEnd();
}
Console.WriteLine(responseContent);
the problem is the string myTargetString doesn't load the javascript params, if i could duplicate those params in the URL would be awesome, if not, what would I need to do to submit those in a post request like I do above in the StreamWriter?
using (StreamWriter requestWriter = new StreamWriter(requestStream, Encoding.ASCII))
{
string postData = "j_username=user&j_password=user&submit=Send";
requestWriter.Write(postData);
}
What I mean by in the url is perhaps something like:
https://mgr/app/action/storage.VivolAction/eventsubmit_dopreparevivollist/ignored?&evsId=1&devId=all&currentpagenumberbottom=1&filtername=&currentpagenumber=1&quotaactionlink=/mgr/app/action/storage.VivolQuotaAction&ascending=true&currentpagesize=20&ignoreErrorMessages=true&pageindex=1&sortby=name&filterpath=
Fiddler provided me with this
POST https://mgr/app/action/storage.SelectFileSystemAction/eventsubmit_doprocessselectfilesystem/ignored
Accept: image/gif, image/jpeg, image/pjpeg, image/pjpeg, application/x-shockwave-flash, application/xaml+xml, application/x-ms-xbap, application/x-ms-application, application/vnd.ms-xpsdocument, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
Referer: https://mgr/app/action/storage.SelectFileSystemAction /eventsubmit_doprepareselectfilesystem/ignored
Accept-Language: en-us
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0)
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
Host: arc
Content-Length: 378
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: jid=asdsad ; jsso = asdas2sa
op=&selectFS_devId=all&selectFS_previous_template=&selectFS_evsId=2&selectFS_currentNameSpace=&selectFS_action_class=storage.VivolAction&selectFS_action_method=doPreparevivollist&selectFS_uniqueId=13655b454e3951462f&selectFS_dont_alter_current=false&selectFS_disableReplicationTargets=true&selectFS_disableReadCache=true&selectFS_disableWorm=false&selectFS_disableUnmounted=true
I can see the electFS_devId=all and selectFS_evsId=2 in there, I need to change the EVSID but I'm not sure how to contruct the URL. Yes I changed the cookie id's

Your javascript is just setting the form values for what are probably hidden fields on the form before performing the submit. You'll need to do a POST request, the same way that you do for the login.
Look at the action value on the form tag in your HTML to determine where to submit the data and put the following form items into your postData:
selectFS_devId
selectFS_currentNameSpace
selectFS_evsId
You can use something like:
string postData = string.Format("selectFS_currentNameSpace={0}&selectFS_evsId={1}&selectFS_devId={2}", "", "2", "all");
Looks like this will get involved, because it appears to be doing some form of session or transaction tracking using selectFS_uniqueId you'll likely have to do a GET operation first and then extract that value from the form. Also, notice that your submit location, just like with the prior j_security_check, isn't going to the same location for the POST (doprocess) as the GET (doprepare) that retrieves the form.
GET
https://mgr/app/action/storage.SelectFileSystemAction/eventsubmit_doprepareselectfilesystem/ignored
POST
https://mgr/app/action/storage.SelectFileSystemAction/eventsubmit_doprocessselectfilesystem/ignored
Take another look at your post values here too. Clearly there is a command being issued with a class (selectFS_action_class) and method (selectFS_action_method) and likely nothing will be done if they aren't specified.
op=
&selectFS_devId=all
&selectFS_previous_template=
&selectFS_evsId=2
&selectFS_currentNameSpace=
&selectFS_action_class=storage.VivolAction
&selectFS_action_method=doPreparevivollist
&selectFS_uniqueId=13655b454e3951462f
&selectFS_dont_alter_current=false
&selectFS_disableReplicationTargets=true
&selectFS_disableReadCache=true
&selectFS_disableWorm=false
&selectFS_disableUnmounted=true
Rather than writing all this stuff to emulate a user doing operations through the web interface, have you checked with F5 to see if they have web services that you can call to do this?

Maybe the ploblem is that, the parameters in this form "j_username=user&j_password=user&submit=Send" are parameters for HTTP "GET" not "POST" you can try get the parameters on this way.
C#
var operacion = context.Request.Form[0] "POST"
var operacion = context.Request.Params[0];
or
Request.Querystring("parameterName") for "GET"
or in javascript you can use $_GET or $_POST

I think your question is way to long for what you are asking. plus you didn't show any code about the posting in the browser.
it seems like you just want to know how to get a form post to work...I noticed you aren't setting the contentlength property...that might have something to do with it. also, check out this "post"...
How to post data to specific URL using WebClient in C#