public async Task <ActionResult> TwitterAuth()
{
var appClient = GetAppClient();
var authRequestId = Guid.NewGuid().ToString();
var redirectPath = $"{Request.Scheme}://{Request.Host.Value}/Home/ValidateTwitterAuth";
var redirectURL = _myAuthRequestStore.AppendAuthenticationRequestIdToCallbackUrl(redirectPath, authRequestId);
var authenticationRequestToken = await appClient.Auth.RequestAuthenticationUrlAsync(redirectURL);
await _myAuthRequestStore.AddAuthenticationTokenAsync(authRequestId, authenticationRequestToken);
return(new RedirectResult(authenticationRequestToken.AuthorizationURL));
}
internal async Task <string> GetAuthUrl()
{
var appClient = new TwitterClient(Environment.GetEnvironmentVariable("CONSUMER_KEY"), Environment.GetEnvironmentVariable("CONSUMER_SECRET"));
var authenticationRequestId = Guid.NewGuid().ToString();
var redirectPath = "http://localhost:5001/validateTwitterAuth/";
// Add the user identifier as a query parameters that will be received by `ValidateTwitterAuth`
var redirectURL = _myAuthRequestStore.AppendAuthenticationRequestIdToCallbackUrl(redirectPath, authenticationRequestId);
// Initialize the authentication process
var authenticationRequestToken = await appClient.Auth.RequestAuthenticationUrlAsync(redirectURL);
// Store the token information in the store
await _myAuthRequestStore.AddAuthenticationTokenAsync(authenticationRequestId, authenticationRequestToken);
// Return the authentication URL so we can display it to the user:
return(authenticationRequestToken.AuthorizationURL);
}
public override LoginProfile ProcessAuthoriztion(HttpContext context, IDictionary <string, string> @params)
{
if (!string.IsNullOrEmpty(context.Request["denied"]))
{
return(LoginProfile.FromError(new Exception("Canceled at provider")));
}
var appClient = new TwitterClient(TwitterKey, TwitterSecret);
if (string.IsNullOrEmpty(context.Request["oauth_token"]))
{
var callbackAddress = new UriBuilder(RedirectUri)
{
Query = "state=" + HttpUtility.UrlEncode(context.Request.GetUrlRewriter().AbsoluteUri)
};
var authenticationRequestId = Guid.NewGuid().ToString();
// Add the user identifier as a query parameters that will be received by `ValidateTwitterAuth`
var redirectURL = _myAuthRequestStore.AppendAuthenticationRequestIdToCallbackUrl(callbackAddress.ToString(), authenticationRequestId);
// Initialize the authentication process
var authenticationRequestToken = appClient.Auth.RequestAuthenticationUrlAsync(redirectURL)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
// Store the token information in the store
_myAuthRequestStore.AddAuthenticationTokenAsync(authenticationRequestId, authenticationRequestToken)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
context.Response.Redirect(authenticationRequestToken.AuthorizationURL, true);
return(null);
}
// Extract the information from the redirection url
var requestParameters = RequestCredentialsParameters.FromCallbackUrlAsync(context.Request.RawUrl, _myAuthRequestStore).GetAwaiter().GetResult();
// Request Twitter to generate the credentials.
var userCreds = appClient.Auth.RequestCredentialsAsync(requestParameters)
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
// Congratulations the user is now authenticated!
var userClient = new TwitterClient(userCreds);
var user = userClient.Users.GetAuthenticatedUserAsync()
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
var userSettings = userClient.AccountSettings.GetAccountSettingsAsync()
.ConfigureAwait(false)
.GetAwaiter()
.GetResult();
return(user == null
? null
: new LoginProfile
{
Name = user.Name,
DisplayName = user.ScreenName,
Avatar = user.ProfileImageUrl,
Locale = userSettings.Language.ToString(),
Id = user.Id.ToString(CultureInfo.InvariantCulture),
Provider = ProviderConstants.Twitter
});
}
