public void buttonGetCredential_Click(object sender, EventArgs e)
{
labelAccessTokenData.Text = "Requesting token...";
try
{
AuthorizationToken result = GetOAuthToken.Program.RunAsync(textBoxTenantId.Text, textBoxClientId.Text, textBoxClientSecret.Text);
labelExpiresInData.Text = result.Expires_In.ToString();
labelNotBeforeData.Text = result.Not_Before.ToString();
labelExpiresOnData.Text = result.Expires_On.ToString();
labelTokenTypeData.Text = result.Token_Type;
labelAccessTokenData.Text = result.Access_Token;
}
catch (Exception err)
{
labelAccessTokenData.Text = err.Message;
}
}
static public AuthorizationToken RunAsync(string TenantId, string ClientId, string ClientSecret)
{
CredentialRequest credentialRequest = new CredentialRequest
{
TenantId = TenantId,
ClientId = ClientId,
ClientSecret = ClientSecret
};
string uri = "https://login.microsoftonline.com/" + TenantId + "/oauth2/v2.0/token/";
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(uri);
webRequest.Method = "POST";
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.MaximumAutomaticRedirections = 4;
webRequest.MaximumResponseHeadersLength = 4;
var postData = "client_id=" + ClientId;
postData += "&scope=https://graph.microsoft.com/.default";
postData += "&client_secret=" + ClientSecret;
postData += "&grant_type=client_credentials";
var data = ASCIIEncoding.ASCII.GetBytes(postData);
webRequest.ContentLength = data.Length;
Stream sendStream = webRequest.GetRequestStream();
sendStream.Write(data, 0, data.Length);
sendStream.Close();
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
Stream receiveStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(receiveStream, Encoding.UTF8);
string result = readStream.ReadToEnd();
AuthorizationToken deserializedResult = JsonConvert.DeserializeObject <AuthorizationToken>(result);
response.Close();
readStream.Close();
return(deserializedResult);
}
