public Form1()
{
InitializeComponent();
_authentication = new AzureAuthentication(
AzureClientCredentials.clientId,
AzureClientCredentials.clientSecret);
_token = _authentication.GetAccessToken();
}
public AzureAuthentication(string clientId, string clientSecret)
{
this.clientId = clientId;
this.clientSecret = clientSecret;
//If clientid or client secret has special characters, encode before sending request
this.request = string.Format("grant_type=client_credentials&client_id={0}&client_secret={1}&scope=http://api.microsofttranslator.com", HttpUtility.UrlEncode(clientId), HttpUtility.UrlEncode(clientSecret));
this.token = HttpPost(DatamarketAccessUri, this.request);
//renew the token every specfied minutes
accessTokenRenewer = new Timer(new TimerCallback(OnTokenExpiredCallback), this, TimeSpan.FromMinutes(RefreshTokenDuration), TimeSpan.FromMilliseconds(-1));
}
public string Translate(AzureAccessToken token, string originaltext, string from, string to)
{
string headerValue = "Bearer " + token.access_token;
try
{
string uri = string.Format(uriService,
System.Web.HttpUtility.UrlEncode(originaltext),
from,
to);
WebRequest translationWebRequest = WebRequest.Create(uri);
translationWebRequest.Proxy = null;
translationWebRequest.Headers.Add("Authorization", headerValue);
WebResponse response = null;
response = translationWebRequest.GetResponse();
Stream stream = response.GetResponseStream();
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());
return xTranslation.InnerText;
}
catch (WebException webex)
{
// Posiblemente el clientID, clientSecret, etc no sean correctos
throw new System.Exception(webex.Message);
}
catch (Exception ex)
{
throw new System.Exception(ex.Message);
}
return originaltext;
}
private void RenewAccessToken()
{
AzureAccessToken newAccessToken = HttpPost(DatamarketAccessUri, this.request);
//swap the new token with old one
//Note: the swap is thread unsafe
this.token = newAccessToken;
Console.WriteLine(string.Format("Renewed token for user: {0} is: {1}", this.clientId, this.token.access_token));
}