private static IAuthorizationState GetAccessToken(string refresh)
{
var authorizationServer = new AuthorizationServerDescription
{
//AuthorizationEndpoint = new Uri(AUTHORIZATION_ENDPOINT),
TokenEndpoint = new Uri(TOKEN_ENDPOINT),
ProtocolVersion = ProtocolVersion.V20,
};
// get a reference to the auth server
var client = new UserAgentClient(authorizationServer, CLIENT_ID, CLIENT_SECRET);
// now get a token
IAuthorizationState ostate;
if (refresh == null)
{
ostate = client.ExchangeUserCredentialForToken(TEST_USERNAME, TEST_PASSWORD, new[] { API_ENDPOINT });
}
else
{
// we had previously authenticated so we can use the token rather than the credentials to get a new access token
ostate = new AuthorizationState(new[] { API_ENDPOINT });
ostate.RefreshToken = refresh;
client.RefreshAuthorization(ostate);
}
// return result
return(ostate);
}
private static void Main()
{
// DotNetOpenAuth only issues access tokens when the client uses an HTTPS connection. As we will most
// likely run the server on our local development machine with only a self-signed SSL certificate, setting up
// connection to the server will fail as the SSL certificate is considered invalid by the .NET framework.
// To circumvent this, we add the line below that will consider all SSL certificates as valid, including
// self-signed certificaties. Note: this should only be used for testing purposes.
ServicePointManager.ServerCertificateValidationCallback = (sender, certificate, chain, errors) => true;
// The description of the authorization server to which we will be connecting. The most important component
// is the token endpoint, which is the URL at which the server listens for token requests
var authorizationServerDescription = new AuthorizationServerDescription
{
TokenEndpoint = new Uri("https://localhost:44303/tokens"),
ProtocolVersion = ProtocolVersion.V20
};
// Create the client with which we will be connecting to the server.
var userAgentClient = new UserAgentClient(authorizationServerDescription, clientIdentifier: "demo-client-1", clientSecret: "demo-client-secret-1");
// The scope that we request for the client. Note: this can also be null if we don't want to request any specific
// scope or more than one scope if we want to request an access token that is valid for several scopes
var clientScopes = new[] { "demo-scope-client-1" };
// Request a new client access token for the specified scopes (http://tools.ietf.org/html/draft-ietf-oauth-v2-31#section-4.4)
// This method will use the client identifier and client secret used when constructing the UserAgentClient instance
var clientAccessToken = userAgentClient.GetClientAccessToken(clientScopes);
// Output some information about the retrieved client access token
Console.WriteLine("[RETRIEVED CLIENT ACCESS TOKEN]");
Console.WriteLine("Access token: {0}", clientAccessToken.AccessToken);
Console.WriteLine("Expiration time: {0}", clientAccessToken.AccessTokenExpirationUtc);
Console.WriteLine("Scope: {0}", OAuthUtilities.JoinScopes(clientAccessToken.Scope));
// The scope that we request for the user. Note: this can also be null if we don't want to request any specific
// scope or more than one scope if we want to request an access token that is valid for several scopes
var userScopes = new[] { "demo-scope-1" };
// Request a new user access token for the specified user and the specified scopes (http://tools.ietf.org/html/draft-ietf-oauth-v2-31#page-35)
var userAccessToken = userAgentClient.ExchangeUserCredentialForToken("demo-user-1", "demo-user-password-1", userScopes);
// Output some information about the retrieved user access token
Console.WriteLine("\n[RETRIEVED USER ACCESS TOKEN]");
Console.WriteLine("Access token: {0}", userAccessToken.AccessToken);
Console.WriteLine("Refresh token: {0}", userAccessToken.RefreshToken);
Console.WriteLine("Expiration time: {0}", userAccessToken.AccessTokenExpirationUtc);
Console.WriteLine("Scope: {0}", OAuthUtilities.JoinScopes(userAccessToken.Scope));
var refreshed = userAgentClient.RefreshAuthorization(userAccessToken);
Console.WriteLine("\n[REFRESHING USER ACCESS TOKEN]");
Console.WriteLine("Access token refreshed: {0}", refreshed);
Console.WriteLine("\nPress any key to exit...");
Console.ReadKey();
}
