/// <summary>
/// Gets the FriendConnect user corresponding to fcAuth or userId. If fcAuth
/// is set, then it will use FriendConnect API calls to retrieve the FriendConnect
/// user, otherwise it will fetch the user from database using userId, and
/// then use its fcid along with 2-legged OAuth to fetch the FriendConnect
/// user.
/// </summary>
/// <param name="fcAuthToken">The FriendConnect token.</param>
/// <param name="userId">The local user id.</param>
/// <param name="addIfMissing">Should a new user be created in local database if
/// there is no such user in the database? Default value of this param is True.
/// </param>
/// <returns>The FriendConnect user.</returns>
public static User getFCUser(string fcAuthToken, string userId, bool addIfMissing)
{
HttpProvider httpProvider =
(HttpProvider)ObjectFactory.getInstance(StringConstants.HttpProvider);
string url = "";
// try to retrieve the user using fcAuth
if (!string.IsNullOrEmpty(fcAuthToken))
{
url = string.Format("{0}/people/{1}/@self?fcauth={2}",
ApplicationConfiguration.FriendConnectApiUrl, userId, fcAuthToken);
}
else
{
// use 2 legged OAuth to fetch the user.
url = string.Format("{0}/people/{1}/@self",
ApplicationConfiguration.FriendConnectApiUrl, userId);
url = OAuthUtil.signRequest(url, ApplicationConfiguration.FriendConnectOAuthKey,
ApplicationConfiguration.FriendConnectOAuthSecret, "",
ApplicationConfiguration.FriendConnectSiteId, new Hashtable());
}
string response = httpProvider.send(url, "GET", "", null);
User retVal = null;
if (!string.IsNullOrEmpty(response))
{
JsonTextReader reader = new JsonTextReader(new StringReader(response));
JsonObject data = new JsonObject();
data.Import(reader);
retVal = new User();
JsonObject entry = (JsonObject)data["entry"];
retVal.FCId = entry["id"].ToString();
retVal.Image = entry["thumbnailUrl"].ToString();
retVal.Name = entry["displayName"].ToString();
UserDBContext UserDBContext = new Models.UserDBContext();
string entryId = entry["id"].ToString();
var users = UserDBContext.Users.Where(u => u.FCId == entryId);
if (users.Count() == 0)
{
// this is a friendconnect user who isn't part of our site. Add him
// as a new user. Store only the fcid.
if (addIfMissing == true)
{
User newUser = new User();
newUser.FCId = entry["id"].ToString();
UserDBContext.Users.Add(newUser);
UserDBContext.SaveChanges();
retVal.Id = UserDBContext.Users.Where(u=> u.FCId == newUser.FCId).First().Id;
}
}
else
{
var localUser = users.First();
// this is a registered user, but he has signed up as a FC user. We
// could identify him as a local user, or a FC user, based on the
// context.
retVal.Id = localUser.Id;
retVal.Password = localUser.Password;
}
}
return retVal;
}
/// <summary>
/// Gets the list of viewer friends.
/// </summary>
/// <param name="fcAuthToken">The FriendConnect token.</param>
/// <param name="start">Start index for friend list.</param>
/// <param name="count">Number of friends to be retrieved.</param>
/// <returns>An array holding startIndex, count, totalResults, and the
/// list of friends.</returns>
public static Hashtable getViewerFriends(string fcAuthToken, int start, int count)
{
HttpProvider httpProvider =
(HttpProvider)ObjectFactory.getInstance(StringConstants.HttpProvider);
string url = string.Format("{0}/people/@viewer/@friends?fcauth={1}&startIndex={2}" +
"&count={3}", ApplicationConfiguration.FriendConnectApiUrl, fcAuthToken, start, count);
string response = httpProvider.send(url, "GET", "", null);
Hashtable retVal = new Hashtable();
if (!string.IsNullOrEmpty(response))
{
JsonTextReader reader = new JsonTextReader(new StringReader(response));
JsonObject data = new JsonObject();
data.Import(reader);
retVal["startIndex"] = int.Parse(data["startIndex"].ToString());
retVal["count"] = ((JsonArray)data["entry"]).Length;
retVal["totalResults"] = int.Parse(data["totalResults"].ToString());
List<User> users = new List<User>();
JsonArray entry = (JsonArray)data["entry"];
for (int i = 0; i < (int)retVal["count"]; i++)
{
JsonObject jUser = (JsonObject)entry[i];
User user = new User();
user.FCId = jUser["id"].ToString();
user.Image = jUser["thumbnailUrl"].ToString();
user.Name = jUser["displayName"].ToString();
{
UserDBContext UserDBContext = new Models.UserDBContext();
var localUsers = UserDBContext.Users.Where(u => u.FCId == user.FCId);
if (localUsers.Count() > 0)
{
// return as a friend only if this user is registered on our
// site as well.
user.Id = localUsers.First().Id;
}
else
{
// our database is out of sync with the fc database. This should
// not happen normally, but syncing itself is simple.
User newUser = new User();
newUser.FCId = jUser["id"].ToString();
UserDBContext.Users.Add(newUser);
UserDBContext.SaveChanges();
user.Id = UserDBContext.Users.Where(u => u.FCId == newUser.FCId).First().Id;
}
}
{
UserDBContext UserDBContext = new Models.UserDBContext();
var localUsers = UserDBContext.Users.Where(u => u.FCId == user.FCId);
if (localUsers.Count() > 0)
{
// return as a friend only if this user is registered on our
// site as well.
user.Id = localUsers.First().Id;
}
else
{
// our database is out of sync with the fc database. This should
// not happen normally, but syncing itself is simple.
User newUser = new User();
newUser.FCId = jUser["id"].ToString();
UserDBContext.Users.Add(newUser);
UserDBContext.SaveChanges();
user.Id = UserDBContext.Users.Where(u => u.FCId == newUser.FCId).First().Id;
}
users.Add(user);
}
}
retVal["friends"] = users.ToArray();
}
return retVal;
}
