Develop Reference

Microsoft Translator Bad request (400) issue

I've seen threads on this issue but my problem is particularly confusing. I have a free 2 million character subscription, a valid client id and secret. When I run my code I get to call the API a few times successfully (the most I've seen is 75 consecutive successful calls). Then every other call returns a Bad request response: The remote server returned an error: (400) Bad Request.
I create the token once with my credentials and never create it again. I loop through a file, parse it, and submit every parsed string for translation by calling the API. It seems that I reach some sort of limit that I'm now aware of.
When looking at my account, it doesn't seem to be discounting the characters that I've translated already which would make me highly suspicious that I have the wrong credentials when creating the token. I quadruple-checked that and everything seems to be ok.
Any guidance on what I may be missing here would be much appreciated.
Here's the code that creates the token. I do think though that there may be an unknown limitation that I'm not aware of with the free subscription.
static void gettoken()
{
//Get access token
string clientID = "my client id";
string clientSecret = "my secret";
String strTranslatorAccessURI = "https://datamarket.accesscontrol.windows.net/v2/OAuth2-13";
String strRequestDetails = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", clientID, clientSecret);
System.Net.WebRequest webRequest = System.Net.WebRequest.Create(strTranslatorAccessURI);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
byte[] bytes = System.Text.Encoding.ASCII.GetBytes(strRequestDetails);
webRequest.ContentLength = bytes.Length;
using (System.IO.Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
System.Net.WebResponse webResponse = webRequest.GetResponse();
System.Runtime.Serialization.Json.DataContractJsonSerializer serializer = new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(AdmAccessToken));
AdmAccessToken token = (AdmAccessToken)serializer.ReadObject(webResponse.GetResponseStream());
MyGlobals.headerValue = "Bearer " + token.access_token;
}
And here's the code that calls the API itself. I call the API method from a loop.
static void RunBing(string sterm)
{
//Submit the translation request
string txtToTranslate = sterm;
string uri = "http://api.microsofttranslator.com/v2/Http.svc/Translate?text=" + txtToTranslate + "&from=en&to=es";
System.Net.WebRequest translationWebRequest = System.Net.WebRequest.Create(uri);
translationWebRequest.Headers.Add("Authorization", MyGlobals.headerValue);
System.Net.WebResponse response = null;
try {
response = translationWebRequest.GetResponse();
}
catch (Exception e)
{
Console.WriteLine("Term failed: " + sterm);
Console.WriteLine(e);
return;
}
System.IO.Stream stream = response.GetResponseStream();
System.Text.Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
System.IO.StreamReader translatedStream = new System.IO.StreamReader(stream, encode);
System.Xml.XmlDocument xTranslation = new System.Xml.XmlDocument();
xTranslation.LoadXml(translatedStream.ReadToEnd());
MyGlobals.xlation = xTranslation.InnerText;
}
After several successful calls to the API, I start to get the following message:
System.Net.WebException: The remote server returned an error: (400) Bad Request.
at System.Net.HttpWebRequest.GetResponse()
at Translate.TranslateText.Program.RunBing(String sterm)

Upload Documents from ASP.Net to Sharepoint Server

I'm trying to upload files from ASP.Net to Sharepoint (In-order to preserve TimeStamp I'm using this way)
The following is my code
protected void UploadFileToSharePoint(string UploadedFilePath, string SharePointPath)
{
WebResponse response = null;
try
{
string SUrl = "http://MysharepointPath/Folder";
//WebRequest request = WebRequest.Create(SharePointPath);
WebRequest request = WebRequest.Create(SUrl);
request.Credentials = new NetworkCredential(username,password );
//request.Method = "PUT";
request.Method = "POST";
FileStream fStream = File.OpenRead(UploadedFilePath);
string fileName = fStream.Name.Substring(3);
byte[] contents = new byte[fStream.Length];
fStream.Read(contents, 0, (int)fStream.Length);
fStream.Close();
request.ContentLength = 0;
//Custom code
using (WebClient uploader = new WebClient())
{
try
{
uploader.UploadFile(new Uri(SUrl), UploadedFilePath);
}
catch (Exception ex)
{
}
}
response = request.GetResponse();
}
}
When i try to run the code in debug mode it throws exception
"remote server returned an error 401 unauthorized"

What do you mean by '(In-order to preserve TimeStamp I'm using this way)'? the timestamp on the uploaded document in SharePoint's going to be the date the document was added to the SharePoint document library
The error 401 (Unauthorized), indicates that the client must first authenticate itself, so can you use Fiddler to validate if you're authenticating in the SharePoint server?
Are you using SharePoint Online or OnPremises?.
There are a few samples in codeplex for what you're trying to accomplish, please review this link for more information...
http://spfileupload.codeplex.com/SourceControl/latest#Get-SPScripts.Copy-FilesToSP.ps1

HttpWebRequest-The remote server returned an error: (400) Bad Request

I am getting The remote server returned an error: (400) Bad Request error while running the following code.
I am trying to upload xml file on the http server.
My xml file contains tag for the username,password and domain and when i am trying to connect is manually i am able to connect it,but using same credentials when i am trying to connect it through this code, i am getting 400 Bad Request error.
Please suggest me how to overcome this issue.
Thanks
`
public static void UploadHttp(string xml)
{
string txtResults = string.Empty;
try
{
string url = "http://my.server.com/upload.aspx ";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
request.KeepAlive = false;
request.SendChunked = true;
request.AllowAutoRedirect = true;
request.Method = "Post";
request.ContentType = "text/xml";
var encoder = new UTF8Encoding();
var data = encoder.GetBytes(xml);
request.ContentLength = data.Length;
var reqStream = request.GetRequestStream();
reqStream.Write(data, 0, data.Length);
reqStream.Close();
WebResponse response = null;
response = request.GetResponse();
var reader = new StreamReader(response.GetResponseStream());
var str = reader.ReadToEnd();
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError)
{
HttpWebResponse err = ex.Response as HttpWebResponse;
if (err != null)
{
string htmlResponse = new StreamReader(err.GetResponseStream()).ReadToEnd();
txtResults = string.Format("{0} {1}", err.StatusDescription, htmlResponse);
}
}
else
{
}
}
catch (Exception ex)
{
txtResults = ex.ToString();
}
}`

Are you sure you should be using POST not PUT?
POST is usually used with application/x-www-urlencoded formats. If you are using a REST API, you should maybe be using PUT? If you are uploading a file you probably need to use multipart/form-data. Not always, but usually, that is the right thing to do..
Also you don't seem to be using the credentials to log in - you need to use the Credentials property of the HttpWebRequest object to send the username and password.

400 Bad request Error will be thrown due to incorrect authentication entries.
Check if your API URL is correct or wrong. Don't append or prepend spaces.
Verify that your username and password are valid. Please check any spelling mistake(s) while entering.
Note: Mostly due to Incorrect authentication entries due to spell changes will occur 400 Bad request.

What type of authentication do you use?
Send the credentials using the properties Ben said before and setup a cookie handler.
You already allow redirection, check your webserver if any redirection occurs (NTLM auth does for sure). If there is a redirection you need to store the session which is mostly stored in a session cookie.

//use "ASCII" or try with another encoding scheme instead of "UTF8".
using (StreamWriter postStream = new StreamWriter(request.GetRequestStream(), System.Text.Encoding.UTF8))
{
postStream.Write(postData);
postStream.Close();
}

RESTful WCF receiving Base64 message. Need to convert message back to XML

I am having some trouble trying to write code within a RESTful WCF service. I have made a method available to a calling client application and I am receiving a message that is of the format Ax27834...... which is a Base64 Binary message. The issue is that following receiving this I need to be able to convert it back to the original xml version of that message that was sent from the client. How can I achieve this in the code snippet below. On line 6 below you will see where the code needs to go. I have searched for a solution but not managed to find anything suitable. I have to receive a message rather than a stream.
I should highlight that the service works fine in the respect of receiving the request. I am just struggling to get the message into a form that I can use.
The receiving code
public Message StoreMessage(Message request)
{
//Store the message
try
{
string message = [NEED SOLUTION HERE]
myClass.StoreNoticeInSchema(message, DateTime.Now);
}
catch (Exception e)
{
log4net.Config.XmlConfigurator.Configure();
ILog log = LogManager.GetLogger(typeof(Service1));
if (log.IsErrorEnabled)
{
log.Error(String.Format("{0}: Notice was not stored. {1} reported an exception. {2}", DateTime.Now, System.Reflection.MethodBase.GetCurrentMethod().DeclaringType, e.Message));
}
}
XElement responseElement = new XElement(XName.Get("elementName", "url"));
XDocument resultDocument = new XDocument(responseElement);
return Message.CreateMessage(OperationContext.Current.IncomingMessageVersion, "elementName", resultDocument.CreateReader());
}
The client code
public string CallPostMethod()
{
const string action = "StoreNotice/New";
TestNotice testNotice = new TestNotice();
const string url = "http://myaddress:myport/myService.svc/StoreNotice/New";
string contentType = String.Format("application/soap+xml; charset=utf-8; action=\"{0}\"", action);
string xmlString = CreateSoapMessage(url, action, testNotice.NoticeText);
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] bytesToSend = encoding.GetBytes(xmlString);
request.Method = "POST";
request.ContentLength = bytesToSend.Length;
request.ContentType = contentType;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(bytesToSend, 0, bytesToSend.Length);
requestStream.Close();
}
string responseFromServer;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
using (Stream dataStream = response.GetResponseStream())
{
using (StreamReader reader = new StreamReader(dataStream))
responseFromServer = reader.ReadToEnd();
dataStream.Close();
}
XDocument document = XDocument.Parse(responseFromServer);
string nameSpace = "http://www.w3.org/2003/05/soap-envelope";
XElement responseElement = document.Root.Element(XName.Get("Body", nameSpace))
.Element(XName.Get(#action + "Response", "http://www.wrcplc.co.uk/Schemas/ETON"));
return responseElement.ToString();
}
Code to create SOAP message
protected string CreateSoapMessage(string url, string action, string messageContent)
{
return String.Format(
#"<?xml version=""1.0"" encoding=""utf-8""?>
<soap12:Envelope xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance""
xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:soap12=""http://www.w3.org/2003/05/soap-envelope""><soap12:Body>{0}</soap12:Body>
</soap12:Envelope>
", messageContent, action, url);
}
NOTE: The TestNotice() object contains a large xml string which is the body of the message.

With a Message object you usually use GetReaderAtBodyContents() to get an XML representation of the body content, unless you know what type the body has then you can use GetBody<>. Try using those to get the string, and then decode it if you still need to. Which you can do as follows:
byte[] encodedMessageAsBytes = System.Convert.FromBase64String(requestString);
string message = System.Text.Encoding.Unicode.GetString(encodedMessageAsBytes);
From there you can reconstruct the xml from the string
Edit: to answer the last part from the comment, the content type should be: text/xml

POST Json String to Remote PHP Script using Json.NET

I am encountering an unusually strange behavior when POSTing a Json string to a PHP webserver. I use the JsonTextWriter object to create the Json string. I then send the Json string as a POST request. Please see comments. The HTML response in the code is returning the correct output, but when viewed in a browser, the web page displays either NULL or array(0) { }.
private void HttpPost(string uri, string parameters)
{
WebRequest webRequest = WebRequest.Create(uri);
webRequest.ContentType = "application/x-www-form-urlencoded"; // <- Should this be "application/json" ?
webRequest.Method = "POST";
byte[] bytes = Encoding.UTF8.GetBytes(parameters);
string byteString = Encoding.UTF8.GetString(bytes);
Stream os = null;
try
{ // Send the Post Data
webRequest.ContentLength = bytes.Length;
os = webRequest.GetRequestStream();
os.Write(bytes, 0, bytes.Length);
Console.WriteLine(String.Format(#"{0}", byteString)); // <- This matches the Json object
}
catch (WebException ex)
{ //Handle Error }
try
{ // Get the response
WebResponse webResponse = webRequest.GetResponse();
if (webResponse == null) { return null; }
StreamReader sr = new StreamReader(webResponse.GetResponseStream());
Console.WriteLine(sr.ReadToEnd().Trim()); // <- Server returns string response (full HTML page)
}
catch (WebException ex)
{ //Handle Error }
}
Relevant PHP code on the server:
$json = json_encode($_POST); # Not 'standard way'
var_dump(json_decode($json));
Any suggestions would be greatly appreciated.
Thanks

Try using "application/json" as the content type. Also, check the request logs or maybe do a port 80 trace if you can to view what's being sent to the server in the request body.
You can also narrow the scope of the problem -- is it the C# code or the PHP code that's bad -- by writing a quick JQuery ajax function that sends some JSON to the PHP server. This isolation of the PHP code from the C# code will tell you if the PHP is at least working correctly. If it is, then the problem is in the C# code.