How can i iterate a GET response if i dont know the structure i will get in advance.
Lets say i can get this response:
{
"hostName": "host",
"domainName": "domain",
}
and the next time i send the same GET request i get this response:
{
"hostName": "host",
}
my code so far:
public static void GetRequest(string url)
{
var httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "GET";
String userId = "userID";
String userPassword = "userPassword";
NetworkCredential networkCredential = new NetworkCredential(userId, userPassword);
httpWebRequest.Credentials = networkCredential;
httpWebRequest.MaximumAutomaticRedirections = 3;
httpWebRequest.Timeout = 5000;
System.Net.ServicePointManager.ServerCertificateValidationCallback = ((sender, certificate, chain, sslPolicyErrors) => true);
string svcCredentials = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(userId + ":" + userPassword));
httpWebRequest.Headers.Add("Authorization", "Basic " + svcCredentials);
Console.WriteLine("Sending HTTP Request");
var httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();
var responseStream = httpWebResponse.GetResponseStream();
if (responseStream != null)
{
var streamReader = new StreamReader(responseStream);
Console.WriteLine("HTTP Response is: ");
Console.WriteLine(streamReader.ReadToEnd());
}
if (responseStream != null) responseStream.Close();
}
Related
So I am using the Dailymotion API for uploading the video and use the code I get from the GitHub and it works perfectly but after 4 videos it gives the exception:
{"The remote server returned an error: (403) Forbidden."}
And I am getting an error in PublishVideo method
var response = request.GetResponse();
Main Code
var accessToken = GetAccessToken();
Authorize(accessToken);
Console.WriteLine("Access token is " + accessToken);
var fileToUpload = #"E:\Courses\[FreeCourseSite.com] Udemy - Entity Framework in Depth The Complete Guide\3. Building a Model using Database-First Workflow\11. Summary.mp4";
Console.WriteLine("File to upload is " + fileToUpload);
var uploadUrl = GetFileUploadUrl(accessToken);
Console.WriteLine("Posting to " + uploadUrl);
var response = GetFileUploadResponse(fileToUpload, accessToken, uploadUrl);
Console.WriteLine("Response:\n");
Console.WriteLine(response + "\n");
Console.WriteLine("Publishing video.\n");
var uploadedResponse = PublishVideo(response, accessToken);
Console.WriteLine(uploadedResponse);
Console.WriteLine("Done. Press enter to exit.");
Console.ReadLine();
}
private static UploadResponse GetFileUploadResponse(string fileToUpload, string accessToken, string uploadUrl)
{
var client = new WebClient();
client.Headers.Add("Authorization", "OAuth " + accessToken);
var responseBytes = client.UploadFile(uploadUrl, fileToUpload);
var responseString = Encoding.UTF8.GetString(responseBytes);
var response = JsonConvert.DeserializeObject<UploadResponse>(responseString);
return response;
}
private static UploadedResponse PublishVideo(UploadResponse uploadResponse, string accessToken)
{
var request = WebRequest.Create("https://api.dailymotion.com/me/videos?url=" + HttpUtility.UrlEncode(uploadResponse.url));
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Headers.Add("Authorization", "OAuth " + accessToken);
var requestString = String.Format("title={0}&tags={1}&channel={2}&private={3}&published={4}",
HttpUtility.UrlEncode("123123123"),
HttpUtility.UrlEncode("tag1"),
HttpUtility.UrlEncode("news"),
HttpUtility.UrlEncode("true"),
HttpUtility.UrlEncode("true"));
var requestBytes = Encoding.UTF8.GetBytes(requestString);
var requestStream = request.GetRequestStream();
requestStream.Write(requestBytes, 0, requestBytes.Length);
var response = request.GetResponse();
var responseStream = response.GetResponseStream();
string responseString;
using (var reader = new StreamReader(responseStream))
{
responseString = reader.ReadToEnd();
}
var uploadedResponse = JsonConvert.DeserializeObject<UploadedResponse>(responseString);
return uploadedResponse;
}
private static string GetAccessToken()
{
var request = WebRequest.Create("https://api.dailymotion.com/oauth/token");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
var requestString = String.Format("grant_type=password&client_id={0}&client_secret={1}&username={2}&password={3}",
HttpUtility.UrlEncode(SettingsProvider.Key),
HttpUtility.UrlEncode(SettingsProvider.Secret),
HttpUtility.UrlEncode(SettingsProvider.Username),
HttpUtility.UrlEncode(SettingsProvider.Password));
var requestBytes = Encoding.UTF8.GetBytes(requestString);
var requestStream = request.GetRequestStream();
requestStream.Write(requestBytes, 0, requestBytes.Length);
var response = request.GetResponse();
var responseStream = response.GetResponseStream();
string responseString;
using (var reader = new StreamReader(responseStream))
{
responseString = reader.ReadToEnd();
}
var oauthResponse = JsonConvert.DeserializeObject<OAuthResponse>(responseString);
return oauthResponse.access_token;
}
private static void Authorize(string accessToken)
{
var authorizeUrl = String.Format("https://api.dailymotion.com/oauth/authorize?response_type=code&client_id={0}&scope=read+write+manage_videos+delete&redirect_uri={1}",
HttpUtility.UrlEncode(SettingsProvider.Key),
HttpUtility.UrlEncode(SettingsProvider.CallbackUrl));
Console.WriteLine("We need permissions to upload. Press enter to open web browser.");
Console.ReadLine();
Process.Start(authorizeUrl);
var client = new WebClient();
client.Headers.Add("Authorization", "OAuth " + accessToken);
Console.WriteLine("Press enter once you have authenticated and been redirected to your callback URL");
Console.ReadLine();
}
private static string GetFileUploadUrl(string accessToken)
{
var client = new WebClient();
client.Headers.Add("Authorization", "OAuth " + accessToken);
var urlResponse = client.DownloadString("https://api.dailymotion.com/file/upload");
var response = JsonConvert.DeserializeObject<UploadRequestResponse>(urlResponse).upload_url;
return response;
}
}
It could be related to many causes. I suggest you to catch the error and get the response stream from our API:
try{
var response = request.GetResponse();
var responseStream = response.GetResponseStream();
string responseString;
using (var reader = new StreamReader(responseStream))
{
responseString = reader.ReadToEnd();
}
var uploadedResponse = JsonConvert.DeserializeObject<UploadedResponse>(responseString);
return uploadedResponse;
}
catch(WebException e){
var rs = e.Response.GetResponseStream();
string errorResponseString;
using (var reader = new StreamReader(rs))
{
errorResponseString = reader.ReadToEnd();
}
Console.WriteLine(errorResponseString);
return null;
}
You will get a message explaining you why your access is forbidden.
I also invite you to check our API rate limit rules which can be a cause of forbidden call: https://developer.dailymotion.com/api/#rate-limit
I have a function to call my Web API. It works well if TestCallingRemotely is set to [AllowAnonymous].
var httpWebRequest = (HttpWebRequest)WebRequest.Create(
"http://localhost/api/services/myApp/commonLookup/TestCallingRemotely");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream())) {
string input = "{}";
streamWriter.Write(input);
streamWriter.Flush();
streamWriter.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
How do I pass the username and password to the HttpWebRequest for authorization?
I need to call my Web API from CLR integration, which only supports System.Net.
ABP's startup template uses bearer token authentication infrastructure.
var token = GetToken(username, password);
// var httpWebRequest = (HttpWebRequest)WebRequest.Create(
// "http://localhost/api/services/myApp/commonLookup/TestCallingRemotely");
// httpWebRequest.ContentType = "application/json";
// httpWebRequest.Method = "POST";
httpWebRequest.Headers.Add("Authorization", "Bearer " + token);
// ...
Get token
This uses a crude way to extract the token, inspired by an MSDN article.
private string GetToken(string username, string password, string tenancyName = null)
{
var httpWebRequest = (HttpWebRequest)WebRequest.Create(
"http://localhost:6334/api/Account/Authenticate");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
var input = "{\"usernameOrEmailAddress\":\"" + username + "\"," +
"\"password\":\"" + password + "\"}";
if (tenancyName != null)
{
input = input.TrimEnd('}') + "," +
"\"tenancyName\":\"" + tenancyName + "\"}";
}
streamWriter.Write(input);
streamWriter.Flush();
streamWriter.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
string response;
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
response = streamReader.ReadToEnd();
}
// Crude way
var entries = response.TrimStart('{').TrimEnd('}').Replace("\"", String.Empty).Split(',');
foreach (var entry in entries)
{
if (entry.Split(':')[0] == "result")
{
return entry.Split(':')[1];
}
}
return null;
}
If the server uses basic authentication you can add the header like this:
var httpWebRequest = (HttpWebRequest) WebRequest.Create(
"http://localhost/api/services/myApp/commonLookup/TestCallingRemotely");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
var username = "Aladdin";
var password = "opensesame";
var bytes = Encoding.UTF8.GetBytes($"{username}:{password}");
httpWebRequest.Headers.Add("Authorization", $"Basic {Convert.ToBase64String(bytes)}");
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string input = "{}";
streamWriter.Write(input);
streamWriter.Flush();
streamWriter.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
Following is the API Call i make using postman and get a ticket back in the response body (screenshot):
I am not able to get the ticket in a HttpWebRequest Response in C#. Please below see the small sample code:
C# code
HttpWebRequest Request = WebRequest.Create(strUrl) as HttpWebRequest;
Request.Method = "POST";
Request.Headers.Add("Authorization", "Basic <>");
//Request.ContentType = "application/form-data";
Request.KeepAlive = true;
string data = string.Format("username=" + UserName + "&password=" + Password);
byte[] dataStream = Encoding.UTF8.GetBytes(data);
Request.ContentLength = dataStream.Length;
using (Stream newStream = Request.GetRequestStream())
{
// Send the data.
newStream.Write(dataStream, 0, dataStream.Length);
newStream.Close();
}
var Response = (HttpWebResponse)Request.GetResponse();
using (var stream = Response.GetResponseStream())
using (var reader = new StreamReader(stream))
{
if (Response.StatusCode != HttpStatusCode.OK)
throw new Exception("The request did not complete successfully and returned status code " + Response.StatusCode);
ResponseTicket strTicket= JsonConvert.DeserializeObject<ResponseTicket>(reader.ToString());
JsonConvert.DeserializeObject(Response.GetResponseStream().ToString());
MessageBox.Show(strTicket.Ticket);
}
Where as statuscode=200. But the content length is 0.
It is very difficult to find any meaning full help on CS10.5 API. I have checked there AppWorks platform but in vain. Would appreciate if someone can find the problem in the code, which apparently i can not see.
I don't know if this is still an issue for you. For me it was also, but figured it out:
public string LoginAsAdminAndRetrieveTicket(string userName, string passWord, string domain, string url)
{
var uri = $"http://{url}/otcs/llisapi.dll/api/v1/auth";
var request = new HttpRequestMessage();
request.Headers.Add("Connection", new[] { "Keep-Alive" });
request.Headers.Add("Cache-Control", "no-cache, no-store, must-revalidate");
request.Headers.Add("Pragma", "no-cache");
request.RequestUri = new Uri(uri);
request.Method = HttpMethod.Post;
request.Content = new StringContent($"username={userName};password={passWord}", Encoding.UTF8, "application/x-www-form-urlencoded");
var httpClientHandler = new HttpClientHandler
{
Proxy = WebRequest.GetSystemWebProxy(),
UseProxy = true,
AllowAutoRedirect = true
};
using (var client = new HttpClient(httpClientHandler))
{
var response = client.SendAsync(request).Result;
string ticket;
var vals = response.Headers.TryGetValues("OTCSTicket", out IEnumerable<string> temp) ? temp : new List<string>();
if (vals.Any())
{
ticket = vals.First();
}
return response.Content.ReadAsStringAsync().Result;
}
}
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;
}
So I'm making a small application for a vbulleting site but need to authenticate the user when he opens my application, I have code to send login request, but I am unsure how to actually check if the login was successful.
This is what I have so far:
public string Login(string username, string password)
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(MPGHLogin);
string cookie = "";
string values = "vb_login_username=" + username + "&vb_login_password=" + password
+ "&securitytoken=guest&"
+ "cookieuser=checked&"
+ "do=login";
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = values.Length;
CookieContainer a = new CookieContainer();
req.CookieContainer = a;
System.Net.ServicePointManager.Expect100Continue = false;
using (StreamWriter writer = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII))
{
writer.Write(values);
}
HttpWebResponse c = (HttpWebResponse)req.GetResponse();
foreach (Cookie cook in c.Cookies)
{
cookie = cookie + cook.ToString() + ";";
}
if (c.StatusCode != HttpStatusCode.OK)
return "FAILED_CONNECTION";
return cookie;
}
But how can I check if the authentication was successful?
For other people that may have the same problem, I completely forgot about checking the respone stream for a login successful message, so below is the full code.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(MPGHLogin);
req.AllowAutoRedirect = true;
string cookie = "";
string values = "vb_login_username=" + username + "&vb_login_password=" + password
+ "&securitytoken=guest&"
+ "cookieuser=checked&"
+ "do=login";
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = values.Length;
CookieContainer a = new CookieContainer();
req.CookieContainer = a;
System.Net.ServicePointManager.Expect100Continue = false;
StreamWriter writer = new StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII);
writer.Write(values);
writer.Close();
req.Timeout = 5000;
HttpWebResponse c;
try {
c = (HttpWebResponse)req.GetResponse(); // da response
} catch(Exception e)
{
MessageBox.Show(e.Message, "Web Exception");
return "WebException";
}
foreach (Cookie cook in c.Cookies)
{
cookie = cookie + cook.ToString() + ";";
}
Stream resp = c.GetResponseStream();
StreamReader reader = new StreamReader(resp, Encoding.GetEncoding(c.CharacterSet));
string response = reader.ReadToEnd();
reader.Close();
reader.Dispose();
if (response.Contains("Thank you for logging in, " + username))
{
c.Dispose();
return cookie;
}
else
return "FAILED_AUTH";