public FacebookWebApi(FacebookService service, string secret)
{
_ApplicationKey = service.ApplicationKey;
_SessionKey = service.SessionKey;
_UserId = service.UserId;
_Secret = secret;
_Service = service;
_jsonSerializer = new JsonDataSerialization(service);
}
public FacebookWebApi(string applicationId, string sessionKey, FacebookObjectId userId, string secret)
{
_ApplicationKey = applicationId;
_SessionKey = sessionKey;
_UserId = userId;
_Secret = secret;
_Service = null;
_jsonSerializer = new JsonDataSerialization(null);
}
private static DateTime?_SafeGetDateTime(JSON_OBJECT jsonObj, params string[] names)
{
long?ticks = _SafeGetInt64(jsonObj, names);
if (ticks == null)
{
return(null);
}
return(JsonDataSerialization.GetDateTimeFromUnixTimestamp(ticks.Value));
}
/// <summary>Check the response of a Facebook server call for error information.</summary>
/// <param name="xml"></param>
/// <returns>
/// If the request was an error, returns an exception that describes the failure.
/// Otherwise this returns null.
private static Exception _VerifyJsonResult(string jsonInput, string sourceRequest)
{
try
{
return(JsonDataSerialization.DeserializeFacebookException(jsonInput, sourceRequest));
}
catch (InvalidOperationException) { }
// Yay, couldn't convert to an exception :) return null.
return(null);
}
public List <FacebookPhoto>[] GetPhotosWithTags(IEnumerable <FacebookObjectId> albumIds)
{
var names = new List <string>();
var queries = new List <string>();
int albumCount = 0;
foreach (FacebookObjectId albumId in albumIds)
{
names.Add("get_photos" + albumCount);
names.Add("get_tags" + albumCount);
queries.Add(string.Format(_GetPhotosFromAlbumQueryString, albumId.ToString()));
queries.Add(string.Format(_GetPhotoTagsMultiQueryString, "get_photos" + albumCount));
++albumCount;
}
string photoMultiQueryResult = Utility.FailableFunction(() => _SendMultiQuery(names, queries));
JSON_ARRAY jsonMultiqueryArray = JsonDataSerialization.SafeParseArray(photoMultiQueryResult);
var photoCollections = new List <FacebookPhoto> [albumCount];
albumCount = 0;
foreach (FacebookObjectId albumId in albumIds)
{
JSON_ARRAY photosResponseArray = (from JSON_OBJECT result in jsonMultiqueryArray
where result.Get <string>("name") == "get_photos" + albumCount
select result.Get <JSON_ARRAY>("fql_result_set"))
.First();
List <FacebookPhoto> photos = _jsonSerializer.DeserializePhotosGetResponse(photosResponseArray);
JSON_ARRAY tagsResponseArray = (from JSON_OBJECT result in jsonMultiqueryArray
where result.Get <string>("name") == "get_tags" + albumCount
select result.Get <JSON_ARRAY>("fql_result_set"))
.First();
List <FacebookPhotoTag> tags = _jsonSerializer.DeserializePhotoTagsList(tagsResponseArray);
foreach (var photo in photos)
{
photo.RawTags.Merge(from tag in tags where tag.PhotoId == photo.PhotoId select tag, false);
}
photoCollections[albumCount] = photos;
++albumCount;
}
return(photoCollections);
}
public List <ActivityPost> GetStream(FacebookObjectId filterKey, int limit, DateTime getItemsSince)
{
Assert.IsTrue(limit > 0);
// Facebook changed the semantics of the default feed, so we need to explicitly
// request the newsfeed filter to keep things working as expected.
// I think everyone should have a filter with this key, but this is unfortunately fragile.
if (!FacebookObjectId.IsValid(filterKey))
{
filterKey = new FacebookObjectId("nf");
}
long startTime = JsonDataSerialization.GetUnixTimestampFromDateTime(getItemsSince);
Assert.IsTrue(startTime >= 0);
// Don't use metadata field. Facebook regressed support for it.
// Getting profile data needs to be simulated at a higher level.
var streamMap = new METHOD_MAP
{
{ "method", "stream.get" },
{ "viewer_id", _UserId.ToString() },
{ "start_time", startTime.ToString("G") },
{ "limit", limit.ToString("G") },
{ "filter_key", filterKey.ToString() },
};
string result = Utility.FailableFunction(() => _SendRequest(streamMap));
return(_jsonSerializer.DeserializeStreamData(result));
//var userIds = new HashSet<FacebookObjectId>();
//foreach (var post in posts)
//{
// userIds.Add(post.ActorUserId);
// userIds.Add(post.TargetUserId);
// userIds.AddRange(from comment in post.Comments select comment.FromUserId);
// userIds.AddRange(from liker in post.PeopleWhoLikeThis select liker.UserId);
//}
}
