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How get cognos report using siteminder token in c#.net

I am trying to get cognos report using siteminder token, below is my code.
string cognosUrl = "https://cognos.blah.com";
string reportPath = "/c10/cgi-bin/cognosisapi.dll/rds/reportData/report/"; string reportId = "ildjfsldkf"; //prod
cognosUrl += string.Concat(reportPath, reportId,"?blahblah");
string targetUrl = cognosUrl;
string strFormvalues = string.Concat("TARGET=",targetUrl);
ASCIIEncoding encoder = new ASCIIEncoding();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(targetUrl);
byte[] data = encoder.GetBytes(strFormvalues);
request.AllowAutoRedirect = false;
request.Timeout = 120000;
request.ContentLength = data.Length;
request.ContentType = "text/xml;charset=\"utf-8\"";
request.Method = "POST";
request.Headers.Add(HttpRequestHeader.Cookie,"SMSESSION="+stoken);
request.GetRequestStream().Write(data, 0, data.Length);
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
string json = reader.ReadToEnd();
byte[] byteArray = Encoding.UTF8.GetBytes(json);
MemoryStream restream = new MemoryStream(byteArray);
using (Stream output = File.OpenWrite(#"c:\\Projects\\Test_"+DateTime.Now.ToString("yyyyMMddHHmmssfff")+".txt"))
using (Stream input = restream)
{
if (input != null) input.CopyTo(output);
}
// var results = serializer.DeserializeObject(json);
reader.Close();
dataStream.Close();
response.Close();
But I am getting response as " DPR-ERR-2101 Your request was invalid.Please contact your administrator."

I am not using C# myself, but a few recommendations while debugging this:
If you are only posting a URL, why not use GET instead of POST?
Try paste the targetURL in your browser, see what happens.
In my setup, when I paste the URL in the browser, I am always redirected before I receive an answer. (to a URL like, /cgi-bin/cognosisapi.dll/rds/sessionOutput/conversationID/i292ED29A62474697AD44306A388F5BBB You are preventing that to happen, that might be an issue)
Hope that helps.

scrape site after login

I'm trying to scrape a website that requires a login. Getting an error that I haven't received before, copied the code from another forum successfully in the past:
Exception Details: System.Net.ProtocolViolationException: Cannot send a content-body with this verb-type.
with the code:
Stream newStream = http.GetRequestStream(); //open connection
Here's the entire code:
#{
var strUserId = "userName";
var strPassword = "password";
var url = "formSubmitLandingSite";
var url2 = "pageToScrape";
HttpWebRequest http = WebRequest.Create(url) as HttpWebRequest;
http.KeepAlive = true;
http.Method = "POST";
http.ContentType = "application/x-www-form-urlencoded";
string postData = "email=" + strUserId + "&password=" + strPassword;
byte[] dataBytes = UTF8Encoding.UTF8.GetBytes(postData);
http.ContentLength = dataBytes.Length;
using (Stream postStream = http.GetRequestStream())
{
postStream.Write(dataBytes, 0, dataBytes.Length);
}
HttpWebResponse httpResponse = http.GetResponse() as HttpWebResponse;
// Probably want to inspect the http.Headers here first
http = WebRequest.Create(url2) as HttpWebRequest;
http.CookieContainer = new CookieContainer();
http.CookieContainer.Add(httpResponse.Cookies);
HttpWebResponse httpResponse2 = http.GetResponse() as HttpWebResponse;
Stream newStream = http.GetRequestStream(); //open connection
newStream.Write(dataBytes, 0, dataBytes.Length); // Send the data.
newStream.Close();
string sourceCode;
HttpWebResponse getResponse = (HttpWebResponse)http.GetResponse();
using (StreamReader sr = new StreamReader(getResponse.GetResponseStream()))
{
sourceCode = sr.ReadToEnd();
}
Response.Write(sourceCode);
}

You're creating a new request object here:
http = WebRequest.Create(url2) as HttpWebRequest;
Keep in mind that the default HTTP verb used is GET. Then you try to open the request stream here:
Stream newStream = http.GetRequestStream();
This method is used to enable writing data to the request's content. However, GET requests don't have content. As you do in the code above the error, you'll need to use a different HTTP verb. POST is most common for this, and is what you're using above:
http.Method = "POST";
So just use a POST request again. (Assuming, of course, that's what the server is expecting. In any event, if the server is expecting content then it's definitely not expecting a GET request.)

UnSupported Media Type when Calling REST Web Service

I am calling a REST web service which has given me this documentation
HTTP Method: POST
Path: /commit/{path}/add-node
Response Status 200, 302, 403, 404, 409, 503
Form Parameters
- name : attribute name
- message : commit message
Based on this documentation. I have written following C# code.
string restUrl = webServiceurl + "/commit/" + path + "/add-node";
restUrl = restUrl + "?name=" + nodeName + "&message=" + commitMessage;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(restUrl);
request.Method = "POST";
request.ContentType = #"application/json";
using (WebResponse response = request.GetResponse()) {
using (StreamReader reader = new StreamReader(response.GetResponseStream())) {
output = reader.ReadToEnd();
}
}
I also tried
string restUrl = webServiceurl + "/commit/" + path + "/add-node";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(restUrl);
request.Method = "POST";
request.ContentType = #"application/json";
var param = new { name = nodeName, message = commitMessage };
Stream reqStream = null;
string output = null;
try {
byte[] buffer = Encoding.GetEncoding("UTF-8").GetBytes(
JsonConvert.SerializeObject(param)
);
request.ContentLength = buffer.Length;
reqStream = request.GetRequestStream();
reqStream.Write(buffer, 0, buffer.Length);
using (WebResponse response = request.GetResponse()) {
using (StreamReader reader = new StreamReader(response.GetResponseStream())) {
output = reader.ReadToEnd();
}
}
} catch (Exception ex) {
.....
}
Unfortunately in both cases, I get 415 Unsupported Media Type in both cases. What is wrong with my code?
The web Services is a REST based web service written in Java.

According to this forum post the ContentType property may not be supported from the Java web service. Are you sure it accepts application/json?

How to get access token for google oauth?

I am using C# (ASP.NET). I want to use Google OAuth for accessing the user profile detail in my app. I successfully got the authorization code but having a problem in getting the access token.
I prefer the Google tutorials. In tutorial, I read that I have to send the request and get the response from google. For that, I use System.Net.HttpWebRequest/HttpWebResponse (am I going in the right way). I have used this code...
byte[] buffer = Encoding.ASCII.GetBytes("?code=" + code + "&client_id=xxx&client_secret=xxx&redirect_uri=xxxx&grant_type=authorization_code");
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("http://accounts.google.com");
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = buffer.Length;
Stream strm = req.GetRequestStream();
strm.Write(buffer, 0, buffer.Length);
strm.Close();
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Response.Write(((HttpWebResponse)resp).StatusDescription);
But, I got the error:
The remote server returned an error: (405) Method Not Allowed.
Update: Here variable code is authorization code.

I think you are sending the POST request to the wrong endpoint, the correct one is https://accounts.google.com/o/oauth2/token

As I had similar problems in the process of implementing Google auth, I will post the code that works.. The last mentioned problem: error (400) Bad request could be caused by leading '?' in the above code..
string codeClient = "code="+ t +"&client_id=number.apps.googleusercontent.com&";
string secretUri = "client_secret=yoursecret&" + "redirect_uri=path&"
+ "grant_type=authorization_code";
postString = codeClient + secretUri;
string url = "https://accounts.google.com/o/oauth2/token";
HttpWebRequest request = (HttpWebRequest) WebRequest.Create(url.ToString());
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
UTF8Encoding utfenc = new UTF8Encoding();
byte[] bytes = utfenc.GetBytes(postString);
Stream os = null;
try
{
request.ContentLength = bytes.Length;
os = request.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
}
catch
{ }
try
{
HttpWebResponse webResponse = (HttpWebResponse) request.GetResponse();
Stream responseStream = webResponse.GetResponseStream();
StreamReader responseStreamReader = new StreamReader(responseStream);
result = responseStreamReader.ReadToEnd();//parse token from result

My code is working, I have done mistakes in above two lines. It should be like this
byte[] buffer = Encoding.ASCII.GetBytes("code=" + code + "&client_id=xxx&client_secret=xxx&redirect_uri=xxxx&grant_type=authorization_code");
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("https://accounts.google.com/o/oauth2/token");
Remaining code is correct.

The original request seems to be somewhat outdated. But I found that the Google's code examples contain lots of "Best Practices" housekeeping code that's hard to separate from the essential operations.
I recently published a document that represents all the REST operations as curl commands. It's hard to be conversant in every language, but curl seems universal. Most people know it- otherwise, it's pretty easy to grasp. In my curl examples, the -d flag indicates a POST operation. Otherwise, the parameters are appended to the URL.
http://www.tqis.com/eloquency/googlecalendar.htm

public string ReceiveTokenGmail(string code, string GoogleWebAppClientID, string GoogleWebAppClientSecret, string RedirectUrl)
{
string postString = "code=" + code + "&client_id=" + GoogleWebAppClientID + #"&client_secret=" + GoogleWebAppClientSecret + "&redirect_uri=" + RedirectUrl;
string url = "https://accounts.google.com/o/oauth2/token";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url.ToString());
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
UTF8Encoding utfenc = new UTF8Encoding();
byte[] bytes = utfenc.GetBytes(postString);
Stream os = null;
try
{
request.ContentLength = bytes.Length;
os = request.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
}
catch
{ }
string result = "";
HttpWebResponse webResponse = (HttpWebResponse)request.GetResponse();
Stream responseStream = webResponse.GetResponseStream();
StreamReader responseStreamReader = new StreamReader(responseStream);
result = responseStreamReader.ReadToEnd();
return result;
}

It was surprisingly difficult to find the correct and simple way of getting access token by auth code. (Especially because it has taken some time for me and then even with the correct code I got “invalid_grant” error because my auth code expired while searching :) )
So here is the code:
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow(
new GoogleAuthorizationCodeFlow.Initializer
{
ClientSecrets = new ClientSecrets()
{
// Use ones from "Web SDK configuration" section if you created your app in Firebase.
ClientId = "…",
ClientSecret = "…"
},
Scopes = new[] { "email" },
}
);
TokenResponse token = await flow.ExchangeCodeForTokenAsync(string.Empty, "4/…", string.Empty, CancellationToken.None);
As you can see, userId can be just empty, as well as redirectUri.
Don’t forget to add the Google.Apis.Auth Nuget package reference.

WebResponse dynamically 'sometimes' crash

I have a foreach with an "If" and when the condition is true, I do a WebResponse to post my item in a server.
Sometimes the code run for two o more items but other times crashes with the following error:
The remote server returned an error: (407) Proxy Authentication Required.
The code:
WebClient client = new WebClient();
string authInfo = "admin:geoserver";
string address = "http://xxxxxxxx:8080/geoserver/rest/workspaces/";
client.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(authInfo));
WebRequest request = WebRequest.Create(address);
request.ContentType = "text/xml";
request.Method = "POST";
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(authInfo));
byte[] bret = Encoding.GetEncoding("UTF-8").GetBytes("<workspace><name>" + nameWS + "</name></workspace>");
Stream reqstr = request.GetRequestStream();
reqstr.Write(bret, 0, bret.Length);
reqstr.Close();
try
{
WebResponse response = request.GetResponse();
response.Close();
}
My Environment is C# Visual Studio 2010

how often do you call this? as others have suggested it could be that the server is protected from DOS and your requests are seen like that. It's also valuable to dispose immediately all disposable objects with a using block for example. we had some issues once while leaving too many connections open to our web server, internally in our network. You could adjust your code to look like this:
using(var client = new WebClient())
{
string authInfo = "admin:geoserver";
string address = "http://xxxxxxxx:8080/geoserver/rest/workspaces/";
client.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(authInfo));
var request = WebRequest.Create(address);
request.ContentType = "text/xml";
request.Method = "POST";
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.ASCII.GetBytes(authInfo));
byte[] bret = Encoding.GetEncoding("UTF-8").GetBytes("<workspace><name>" + nameWS + "</name></workspace>");
using (var reqstr = request.GetRequestStream())
{
reqstr.Write(bret, 0, bret.Length);
}
try
{
using (var response = request.GetResponse())
{
// your code here...
}
}
catch (Exception exc)
{
System.Diagnostics.Debug.WriteLine(exc.Message);
}
}