protected AccessToken RetrieveAccessToken(string authorizationCode, Uri redirectUri)
{
if (string.IsNullOrEmpty(authorizationCode))
{
throw new ArgumentNullException("authorizationCode");
}
if (redirectUri == null ||
string.IsNullOrEmpty(redirectUri.AbsoluteUri))
{
throw new ArgumentNullException("redirectUri");
}
IRestResponse <TAccessTokenResult> response;
try
{
response = ExecuteRetrieveAccessToken(authorizationCode, redirectUri);
}
catch (Exception exception)
{
var authentictionException =
new AuthenticationException(string.Format("Failed to retrieve an Access Token from {0}.",
Name), exception);
var errorMessage = string.Format("{0}", authentictionException.RecursiveErrorMessages());
TraceSource.TraceError(errorMessage);
throw authentictionException;
}
if (response == null ||
response.StatusCode != HttpStatusCode.OK ||
response.ErrorException != null)
{
var errorMessage = string.Format(
"Failed to obtain an Access Token from {0} OR the the response was not an HTTP Status 200 OK. Response Status: {1}. Response Description: {2}. Error Content: {3}. Error Message: {4}.",
string.IsNullOrEmpty(Name) ? "--no name--" : Name,
response == null ? "-- null response --" : response.StatusCode.ToString(),
response == null ? string.Empty : response.StatusDescription,
response == null ? string.Empty : response.Content,
response == null
? string.Empty
: response.ErrorException == null
? "--no error exception--"
: response.ErrorException.RecursiveErrorMessages());
TraceSource.TraceError(errorMessage);
throw new AuthenticationException(errorMessage);
}
return(MapAccessTokenResultToAccessToken(response.Data));
}
protected override UserInformation RetrieveUserInformation(AccessToken accessToken)
{
if (accessToken == null)
{
throw new ArgumentNullException("accessToken");
}
if (string.IsNullOrEmpty(accessToken.PublicToken))
{
throw new ArgumentException("accessToken.PublicToken");
}
IRestResponse <MeResult> response;
try
{
var restRequest = new RestRequest("me");
restRequest.AddParameter("access_token", accessToken.PublicToken);
var restClient = RestClientFactory.CreateRestClient(BaseUrl);
TraceSource.TraceVerbose("Retrieving user information. Facebook Endpoint: {0}",
restClient.BuildUri(restRequest).AbsoluteUri);
response = restClient.Execute <MeResult>(restRequest);
}
catch (Exception exception)
{
var authenticationException =
new AuthenticationException("Failed to retrieve any Me data from the Facebook Api.", exception);
var errorMessage = authenticationException.RecursiveErrorMessages();
TraceSource.TraceError(errorMessage);
throw new AuthenticationException(errorMessage, exception);
}
if (response == null ||
response.StatusCode != HttpStatusCode.OK ||
response.Data == null)
{
var errorMessage = string.Format(
"Failed to obtain some 'Me' data from the Facebook api OR the the response was not an HTTP Status 200 OK. Response Status: {0}. Response Description: {1}. Error Message: {2}.",
response == null ? "-- null response --" : response.StatusCode.ToString(),
response == null ? string.Empty : response.StatusDescription,
response == null
? string.Empty
: response.ErrorException == null
? "--no error exception--"
: response.ErrorException.RecursiveErrorMessages());
TraceSource.TraceError(errorMessage);
throw new AuthenticationException(errorMessage);
}
var id = response.Data.Id < 0 ? 0 : response.Data.Id;
var name = (string.IsNullOrEmpty(response.Data.FirstName)
? string.Empty
: response.Data.FirstName) + " " +
(string.IsNullOrEmpty(response.Data.LastName)
? string.Empty
: response.Data.LastName).Trim();
return(new UserInformation
{
Id = id.ToString(),
Name = name,
Email = response.Data.Email,
Locale = response.Data.Locale,
UserName = response.Data.Username,
Picture = string.Format("https://graph.facebook.com/{0}/picture", id)
});
}