I am trying to Shim the following code:
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = "GET";
request.Headers.Add("Authorization", "Bearer " + authToken.token.access_token);
request.Accept = "application/json";
But running the Unit Test throws an exception in this part: request.Headers.Add() because request.Headers is null. This, in spite of initializing Headers in my test:
ShimHttpWebRequest request = new ShimHttpWebRequest();
ShimWebRequest.CreateString = (urio) => {
request.Instance.Headers = new WebHeaderCollection {
{"Authorization", "Bearer abcd1234"}
};
//also tried initilizing it like this:
//WebHeaderCollection headers = new WebHeaderCollection();
//headers[HttpRequestHeader.Authorization] = "Bearer abcd1234";
//request.Instance.Headers = headers;
return request.Instance;
};
But request.Instance.Headers is still null.
What am I missing?
I solved this by creating a getter for Headers so that it would return a WebHeaderCollection instead of null.
ShimHttpWebRequest request = new ShimHttpWebRequest();
ShimWebRequest.CreateString = (urio) => request.Instance;
request.HeadersGet = () => {
WebHeaderCollection headers = new WebHeaderCollection();
headers.Add("Authorization", "Bearer abcd1234");
return headers;
};
I solved this by instantiating Header property of ShimHttpWebRequest as follows,
var httpWebRequest = new ShimHttpWebRequest() { HeadersGet = () => new WebHeaderCollection() };
ShimWebRequest.CreateString = (arg1) => httpWebRequest.Instance;
This is my code, you can try it:
public static string HttpPostWebRequest(string requestUrl, int timeout, string requestXML, bool isPost, string encoding, out string msg)
{
msg = string.Empty;
string result = string.Empty;
try
{
byte[] bytes = System.Text.Encoding.GetEncoding(encoding).GetBytes(requestXML);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUrl);
request.ContentType = "application/x-www-form-urlencoded";
request.Referer = requestUrl;
request.Method = isPost ? "POST" : "GET";
request.ContentLength = bytes.Length;
request.Timeout = timeout * 1000;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(bytes, 0, bytes.Length);
requestStream.Close();
}
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
if (responseStream != null)
{
StreamReader reader = new StreamReader(responseStream, System.Text.Encoding.GetEncoding(encoding));
result = reader.ReadToEnd();
reader.Close();
responseStream.Close();
request.Abort();
response.Close();
return result.Trim();
}
}
catch (Exception ex)
{
msg = ex.Message + ex.StackTrace;
}
return result;
}
Related
public static String TransferMessage(String uri, String resource,
String xml_data, Method httpmethod,
ReturnType returnType)
{
try
{
WebRequest request = WebRequest.Create(uri + resource);
request.Method = httpmethod.ToString();
request.ContentType = #"application/xml;";
//request.Headers.Add("Token", token);
request.Timeout = Convert.ToInt32((new TimeSpan(1, 0, 0)).TotalMilliseconds);
request.ContentLength = Encoding.UTF8.GetByteCount(xml_data);
if (httpmethod != Method.GET)
using (Stream stream = request.GetRequestStream())
{
stream.Write(Encoding.UTF8.GetBytes(xml_data), 0,
Encoding.UTF8.GetByteCount(xml_data));
stream.Flush();
stream.Close();
}
return getResponseContent(request.GetResponse());
}
catch(Exception e)
{
Console.WriteLine(e);
}
return null;
}
Main method:
var res_xml = MethodHelper.TransferMessage(endpoint, "/" + resource,xml,
MethodHelper.Method.PUT,
MethodHelper.ReturnType.XML);
I am getting this error
ERROR javax.xml.bind.UnmarshalException\n - with
linked exception:\n[org.xml.sax.SAXParseException; line Number: 1;
columnNumber: 1; Content is not allowed in prolog.]
try{
string contend = "";
using (var streamReader = new StreamReader(new FileInfo(#"C:\Users\absmbez\Desktop\temp\upload.xml").OpenRead()))
{
contend = streamReader.ReadToEnd();
}
HttpWebRequest webrequest = (HttpWebRequest)WebRequest.Create(url);
webrequest.Method = "PUT";
webrequest.ContentType = "application/xml";
Encoding enc = System.Text.Encoding.GetEncoding("utf-8");
byte[] requestData = enc.GetBytes(contend);
webrequest.ContentLength = requestData.Length;
using (var stream = webrequest.GetRequestStream())
{
stream.Write(requestData, 0, requestData.Length);
}
HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();
StreamReader responseStream = new StreamReader(webresponse.GetResponseStream(), enc);
string result = string.Empty;
result = responseStream.ReadToEnd();
webresponse.Close();
return result;
}
catch (Exception e)
{
Console.WriteLine(e);
}
I'm having trouble getting a good response from wit.ai's speech end point. The response is always 400. I seem to be following the docs but something's wrong.
Any help would be appreciated.
private string ProcessSpeechStream(Stream stream)
{
BinaryReader filereader = new BinaryReader(stream);
byte[] arr = filereader.ReadBytes((Int32)stream.Length);
filereader.Close();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://api.wit.ai/speech");
request.SendChunked = true;
request.Method = "POST";
request.Headers["Authorization"] = "Bearer " + APIToken;
request.ContentType = "chunked";
request.ContentLength = arr.Length;
var st = request.GetRequestStream();
st.Write(arr, 0, arr.Length);
st.Close();
// Process the wit.ai response
try
{
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
StreamReader response_stream = new StreamReader(response.GetResponseStream());
return response_stream.ReadToEnd();
}
else
{
Logger.AILogger.Log("Error: " + response.StatusCode.ToString());
return string.Empty;
}
}
catch (Exception ex)
{
Logger.AILogger.Log("Error: " + ex.Message, ex);
return string.Empty;
}
}
This code sample uses the correct encoding. If you are using Naudio make sure you waveformat is like the encoding (Plus it has to be mono):
private string ProcessSpeechStream(Stream stream)
{
var ms = new MemoryStream();
stream.CopyTo(ms);
var arr = ms.ToArray();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://api.wit.ai/speech");
request.SendChunked = true;
request.Method = "POST";
request.Headers["Authorization"] = "Bearer " + APIToken;
request.ContentType = "audio/raw;encoding=signed-integer;bits=16;rate=44100;endian=little";
request.ContentLength = arr.Length;
var st = request.GetRequestStream();
st.Write(arr, 0, arr.Length);
st.Close();
// Process the wit.ai response
try
{
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
StreamReader response_stream = new StreamReader(response.GetResponseStream());
return response_stream.ReadToEnd();
}
}
catch (Exception ex)
{
// use your own exception handling class
// Logger.AILogger.Log("Error: " + ex.Message, ex);
return string.Empty;
}
}
I have a library for 4.5 net fw. I need do the same but for net core.
Big beer for person which can repair this..
Code from VS with errors (screen)
MY code:
string returnData = String.Empty;
var webRequest = HttpWebRequest.Create(url) as HttpWebRequest;
if (webRequest != null)
{
webRequest.Accept = "*/*";
webRequest.UserAgent = ".NET";
webRequest.Method = method;
webRequest.ContentType = "application/json";
webRequest.Host = "coinbase.com";
string nonce = Convert.ToInt64(DateTime.Now.Ticks).ToString();
string message = nonce + url;
string signature = HashEncode(HashHMAC(StringEncode(API_SECRET), StringEncode(message)));
var whc = new WebHeaderCollection();
whc.Add("ACCESS_KEY: " + API_KEY);
whc.Add("ACCESS_SIGNATURE: " + signature);
whc.Add("ACCESS_NONCE: " + nonce);
webRequest.Headers = whc;
using (WebResponse response = webRequest.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream);
returnData = reader.ReadToEnd();
}
}
}
You can use my code as below. Hope to help, my friend:
var webRequest = WebRequest.Create(url) as HttpWebRequest;
if (webRequest != null)
{
webRequest.Accept = "*/*";
webRequest.UserAgent = ".NET";
webRequest.Method = WebRequestMethods.Http.Post;
webRequest.ContentType = "application/json";
webRequest.Host = "coinbase.com";
var whc = new WebHeaderCollection
{
"ACCESS_KEY: " + API_KEY,
"ACCESS_SIGNATURE: " + signature,
"ACCESS_NONCE: " + nonce
};
webRequest.Headers = whc;
using (WebResponse response = webRequest.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream);
returnData = reader.ReadToEnd();
}
}
}
I am trying to log in to instagram using web requests. I am having a bad time understanding what's going on. Getting this: The remote server returned an error: (403) Forbidden. What I have so far:
public static string csrf;
CookieContainer c1 = new CookieContainer();
private void button1_Click(object sender, EventArgs e)
{
string PostData = String.Format("csrfmiddlewaretoken={0}&username=ra123&password=ra12345678",getToken());
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://instagram.com/accounts/login/");
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.KeepAlive = true;
req.AllowAutoRedirect = true;
req.CookieContainer = c1;
byte[] byteArray = Encoding.ASCII.GetBytes(PostData);
req.ContentLength = byteArray.Length;
Stream dataStream = req.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Flush();
dataStream.Close();
HttpWebResponse webResp = (HttpWebResponse)req.GetResponse();
Stream datastream = webResp.GetResponseStream();
StreamReader reader = new StreamReader(datastream);
string s = reader.ReadToEnd();
MessageBox.Show(s);
if (s.Contains("ra123"))
{
MessageBox.Show("Loggedin");
}
else
{
MessageBox.Show("Not");
}
}
string getToken()
{
string p = "<input type=\"hidden\" name=\"csrfmiddlewaretoken\" value=\"(.*)\"/>";
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://instagram.com/accounts/login/");
req.Method = "GET";
req.CookieContainer = c1;
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Stream data = resp.GetResponseStream();
StreamReader sr = new StreamReader(data);
string src = sr.ReadToEnd();
Match m = Regex.Match(src, p);
if (m.Success)
{
return (m.Groups[1].Value.ToString());
}
return false.ToString();
}
The problem with the login is that the request needs to set the cookie at the header, and the container is not setting it since is changes at every login when you access from an unknown explorer. Here is what you can do:
WebResponse Response;
HttpWebRequest Request;
Uri url = new Uri("http://thewebpage.com:port/login/");
CookieContainer cookieContainer = new CookieContainer();
Request = (HttpWebRequest)WebRequest.Create(url);
Request.Method = "GET";
Request.CookieContainer = cookieContainer;
// Get the first response to obtain the cookie where you will find the "csrfmiddlewaretoken" value
Response = Request.GetResponse();
string Parametros = "csrfmiddlewaretoken=" + cookieContainer.GetCookies(url)["csrftoken"].Value + "&username=USER&password=PASSWORD&next="; // This whill set the correct url to access
Request = (HttpWebRequest)WebRequest.Create(url); // it is important to use the same url used for the first request
Request.Method = "POST";
Request.ContentType = "application/x-www-form-urlencoded";
Request.UserAgent = "Other";
// Place the cookie container to obtain the new cookies for further access
Request.CookieContainer = cookieContainer;
Request.Headers.Add("Cookie",Response.Headers.Get("Set-Cookie")); // This is the most important step, you have to place the cookies at the header (without this line you will get the 403 Forbidden exception
byte[] byteArray = Encoding.UTF8.GetBytes(Parametros);
Request.ContentLength = byteArray.Length;
Stream dataStream = Request.GetRequestStream();
dataStream.Responseite(byteArray, 0, byteArray.Length);
dataStream.Close();
Response = Request.GetResponse();
FYI, this won't solve your problem, but you need to learn to place your Stream and other objects that implement IDisposable into using blocks:
public static string csrf;
CookieContainer c1 = new CookieContainer();
private void button1_Click(object sender, EventArgs e)
{
string PostData = String.Format("csrfmiddlewaretoken={0}&username=ra123&password=ra12345678", getToken());
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://instagram.com/accounts/login/");
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.KeepAlive = true;
req.AllowAutoRedirect = true;
req.CookieContainer = c1;
byte[] byteArray = Encoding.ASCII.GetBytes(PostData);
req.ContentLength = byteArray.Length;
using (Stream dataStream = req.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Flush();
dataStream.Close();
}
string s;
using (HttpWebResponse webResp = (HttpWebResponse)req.GetResponse())
{
using (Stream datastream = webResp.GetResponseStream())
{
using (StreamReader reader = new StreamReader(datastream))
{
s = reader.ReadToEnd();
}
}
}
MessageBox.Show(s);
if (s.Contains("ra123"))
{
MessageBox.Show("Loggedin");
}
else
{
MessageBox.Show("Not");
}
}
string getToken()
{
string p = "<input type=\"hidden\" name=\"csrfmiddlewaretoken\" value=\"(.*)\"/>";
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("https://instagram.com/accounts/login/");
req.Method = "GET";
req.CookieContainer = c1;
string src;
using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse())
{
using (Stream data = resp.GetResponseStream())
{
using (StreamReader sr = new StreamReader(data))
{
src = sr.ReadToEnd();
}
}
}
Match m = Regex.Match(src, p);
if (m.Success)
{
return (m.Groups[1].Value.ToString());
}
return false.ToString();
}
I need to call a method from a webservice, so I've written this code:
private string urlPath = "http://xxx.xxx.xxx/manager/";
string request = urlPath + "index.php/org/get_org_form";
WebRequest webRequest = WebRequest.Create(request);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.
webRequest.ContentLength = 0;
WebResponse webResponse = webRequest.GetResponse();
But this method requires some parameters, as following:
Post data:
_username:'API USER', // api authentication username
_password:'API PASSWORD', // api authentication password
How can I add these parameters into this Webrequest?
Use stream to write content to webrequest
string data = "username=<value>&password=<value>"; //replace <value>
byte[] dataStream = Encoding.UTF8.GetBytes(data);
private string urlPath = "http://xxx.xxx.xxx/manager/";
string request = urlPath + "index.php/org/get_org_form";
WebRequest webRequest = WebRequest.Create(request);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.ContentLength = dataStream.Length;
Stream newStream=webRequest.GetRequestStream();
// Send the data.
newStream.Write(dataStream,0,dataStream.Length);
newStream.Close();
WebResponse webResponse = webRequest.GetResponse();
If these are the parameters of url-string then you need to add them through '?' and '&' chars, for example http://example.com/index.aspx?username=Api_user&password=Api_password.
If these are the parameters of POST request, then you need to create POST data and write it to request stream. Here is sample method:
private static string doRequestWithBytesPostData(string requestUri, string method, byte[] postData,
CookieContainer cookieContainer,
string userAgent, string acceptHeaderString,
string referer,
string contentType, out string responseUri)
{
var result = "";
if (!string.IsNullOrEmpty(requestUri))
{
var request = WebRequest.Create(requestUri) as HttpWebRequest;
if (request != null)
{
request.KeepAlive = true;
var cachePolicy = new RequestCachePolicy(RequestCacheLevel.BypassCache);
request.CachePolicy = cachePolicy;
request.Expect = null;
if (!string.IsNullOrEmpty(method))
request.Method = method;
if (!string.IsNullOrEmpty(acceptHeaderString))
request.Accept = acceptHeaderString;
if (!string.IsNullOrEmpty(referer))
request.Referer = referer;
if (!string.IsNullOrEmpty(contentType))
request.ContentType = contentType;
if (!string.IsNullOrEmpty(userAgent))
request.UserAgent = userAgent;
if (cookieContainer != null)
request.CookieContainer = cookieContainer;
request.Timeout = Constants.RequestTimeOut;
if (request.Method == "POST")
{
if (postData != null)
{
request.ContentLength = postData.Length;
using (var dataStream = request.GetRequestStream())
{
dataStream.Write(postData, 0, postData.Length);
}
}
}
using (var httpWebResponse = request.GetResponse() as HttpWebResponse)
{
if (httpWebResponse != null)
{
responseUri = httpWebResponse.ResponseUri.AbsoluteUri;
cookieContainer.Add(httpWebResponse.Cookies);
using (var streamReader = new StreamReader(httpWebResponse.GetResponseStream()))
{
result = streamReader.ReadToEnd();
}
return result;
}
}
}
}
responseUri = null;
return null;
}
For doing FORM posts, the best way is to use WebClient.UploadValues() with a POST method.
Hope this works
webRequest.Credentials= new NetworkCredential("API_User","API_Password");
I have a feeling that the username and password that you are sending should be part of the Authorization Header. So the code below shows you how to create the Base64 string of the username and password. I also included an example of sending the POST data. In my case it was a phone_number parameter.
string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(_username + ":" + _password));
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(Request);
webRequest.Headers.Add("Authorization", string.Format("Basic {0}", credentials));
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = WebRequestMethods.Http.Post;
webRequest.AllowAutoRedirect = true;
webRequest.Proxy = null;
string data = "phone_number=19735559042";
byte[] dataStream = Encoding.UTF8.GetBytes(data);
request.ContentLength = dataStream.Length;
Stream newStream = webRequest.GetRequestStream();
newStream.Write(dataStream, 0, dataStream.Length);
newStream.Close();
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
Stream stream = response.GetResponseStream();
StreamReader streamreader = new StreamReader(stream);
string s = streamreader.ReadToEnd();
The code below differs from all other code because at the end it prints the response string in the console that the request returns. I learned in previous posts that the user doesn't get the response Stream and displays it.
//Visual Basic Implementation Request and Response String
Dim params = "key1=value1&key2=value2"
Dim byteArray = UTF8.GetBytes(params)
Dim url = "https://okay.com"
Dim client = WebRequest.Create(url)
client.Method = "POST"
client.ContentType = "application/x-www-form-urlencoded"
client.ContentLength = byteArray.Length
Dim stream = client.GetRequestStream()
//sending the data
stream.Write(byteArray, 0, byteArray.Length)
stream.Close()
//getting the full response in a stream
Dim response = client.GetResponse().GetResponseStream()
//reading the response
Dim result = New StreamReader(response)
//Writes response string to Console
Console.WriteLine(result.ReadToEnd())
Console.ReadKey()