public ActionResult Authenticate(string success, string failure, string permissions, string state, bool offline)
{
string key = Guid.NewGuid().ToStringValue();
OAuthState authState = new OAuthState();
authState.FailureUrl = failure;
authState.SuccessUrl = success;
authState.State = state;
this.stateManager.SaveState(key, authState);
IDictionary <string, string> parameters = new Dictionary <string, string>();
if (offline)
{
parameters.Add("access_type", "offline");
}
List <string> permissionList = new List <string>();
if (!string.IsNullOrWhiteSpace(permissions))
{
permissionList.AddRange(permissions.Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries));
}
GoogleClient client = new GoogleClient(this.context.Config.Social.Google.AppID,
this.context.Config.Social.Google.AppSecret);
string authorizationUrl = client.BuildAuthorizationUrl(SocialApiSetting.BuildUrl(this.context.Config.Social.Google.Domain, "social/google/authorize"), permissionList, key, parameters);
return(new RedirectResult(authorizationUrl));
}