public TUser LoadUser <TUser>(HttpContextBase httpContext) where TUser : FacebookUser, new()
{
dynamic signedRequest = GetSignedRequest(httpContext);
if (signedRequest != null)
{
string userId = signedRequest.user_id;
if (userId == null)
{
return(null);
}
var user = (TUser)facebookUserStorageService.GetUser(userId);
if (user == null)
{
user = new TUser()
{
FacebookId = userId
};
}
return(RefreshUser(user, signedRequest.oauth_token));
}
throw new ApplicationException("Invalid request. No signed_request parameter was found on the request.");
}
//TODO: (ErikPo) Make this async
public HttpResponseMessage Post(JObject facebookObject)
{
#if Debug
Utilities.Log(facebookObject.ToString());
#endif
//TODO: (ErikPo) Find out for sure if we need to validate the request here during the security review
//TODO: (ErikPo) This code needs to move into some sort of user change handler
if (facebookObject["object"].Value <string>() == "user")
{
foreach (var entry in facebookObject["entry"])
{
var facebookId = entry["id"].Value <string>();
var fields = new List <string>();
foreach (var changedField in entry["changed_fields"])
{
fields.Add(changedField.Value <string>());
}
if (fields.Count > 0)
{
var user = facebookUserStorageService.GetUser(facebookId);
if (user != null)
{
facebookService.RefreshUserFields(user, fields.ToArray());
FacebookUserEvents.FireUserChangedEvent(user);
}
}
}
}
//TODO: (ErikPo) Parse other stuff like friend changes
return(Request.CreateResponse(HttpStatusCode.OK));
}
private object GetUser(Type modelType, string facebookId, global::Facebook.FacebookClient client)
{
var user = facebookUserStorageService.GetUser(facebookId);
//TODO: (ErikPo) Fill in the other half of this condition
if (user == null /* or this is the first time the app has started */)
{
object userFields = client.Get("me" + (!String.IsNullOrEmpty(fields) ? "?fields=" + fields.Replace(" ", String.Empty) : facebookService.GetFields(modelType)));
if (modelType == typeof(FacebookUser))
{
return(new FacebookUser {
Data = userFields
});
}
else if (modelType == typeof(object))
{
return((dynamic)userFields);
}
user = (FacebookUser)Activator.CreateInstance(modelType);
user.Data = userFields;
var facebookFields = GetUserFields(modelType);
PropertyInfo userProperty;
string facebookFieldName;
object fieldValue;
foreach (var field in facebookFields)
{
if (field.Value != null && field.Value.Ignore)
{
continue;
}
userProperty = field.Key;
facebookFieldName = field.Value != null ? field.Value.JsonField : String.Empty;
if (!String.IsNullOrEmpty(facebookFieldName))
{
fieldValue = GetFBFieldValue(userFields, facebookFieldName.Split('.'));
}
else
{
fieldValue = GetFBFieldValue(userFields, new[] { userProperty.Name });
}
if (fieldValue != null)
{
userProperty.SetValue(user, fieldValue, null);
}
}
facebookUserStorageService.AddUser(user);
}
return(user);
}
