// Photo stream retrieved for a user private void PhotoStreamReturned(object sender, GetPhotoStreamEventArgs e) { // Find the user if (!UserCache.ContainsKey(e.UserId)) return; User user = UserCache[e.UserId]; JObject rawJson = JObject.Parse(e.Response); JObject rootJson = (JObject)rawJson["photos"]; user.PhotoCount = int.Parse(rootJson["total"].ToString()); int page = int.Parse(rootJson["page"].ToString()); int numPages = int.Parse(rootJson["pages"].ToString()); int perPage = int.Parse(rootJson["perpage"].ToString()); List<Photo> newPhotos = new List<Photo>(); foreach (var entry in rootJson["photo"]) { JObject json = (JObject)entry; Photo photo = PhotoFactory.PhotoWithJObject(json); if (!user.Photos.Contains(photo)) { user.Photos.Add(photo); newPhotos.Add(photo); } } // Dispatch event PhotoStreamUpdatedEventArgs evt = new PhotoStreamUpdatedEventArgs(); evt.Page = page; evt.PageCount = numPages; evt.PerPage = perPage; evt.NewPhotos = newPhotos; evt.UserId = e.UserId; PhotoStreamUpdated.DispatchEvent(this, evt); }
public async void GetPhotoStreamAsync(string userId, Dictionary<string, string> parameters = null) { string timestamp = DateTimeUtils.GetTimestamp(); string nonce = Guid.NewGuid().ToString().Replace("-", null); Dictionary<string, string> paramDict = new Dictionary<string, string>(); paramDict["method"] = "flickr.people.getPhotos"; paramDict["format"] = "json"; paramDict["nojsoncallback"] = "1"; paramDict["oauth_consumer_key"] = consumerKey; paramDict["oauth_nonce"] = nonce; paramDict["oauth_signature_method"] = "HMAC-SHA1"; paramDict["oauth_timestamp"] = timestamp; paramDict["oauth_token"] = AccessToken; paramDict["oauth_version"] = "1.0"; if (parameters != null) { foreach (var entry in parameters) { paramDict[entry.Key] = entry.Value; } } if (userId == Cinderella.Cinderella.CinderellaCore.CurrentUser.ResourceId) paramDict["user_id"] = "me"; else paramDict["user_id"] = UrlHelper.Encode(userId); paramDict["extras"] = UrlHelper.Encode(commonExtraParameters); User user = null; if (Cinderella.Cinderella.CinderellaCore.UserCache.ContainsKey(userId)) { user = Cinderella.Cinderella.CinderellaCore.UserCache[userId]; user.IsLoadingPhotoStream = true; } string paramString = GenerateParamString(paramDict); string signature = GenerateSignature("GET", AccessTokenSecret, "https://api.flickr.com/services/rest", paramString); string requestUrl = "https://api.flickr.com/services/rest?" + paramString + "&oauth_signature=" + signature; HttpWebResponse response = await DispatchRequest("GET", requestUrl, null).ConfigureAwait(false); using (StreamReader reader = new StreamReader(response.GetResponseStream())) { GetPhotoStreamExceptionEventArgs exceptionEvt = null; if (user != null) { user.IsLoadingPhotoStream = false; } if (response.StatusCode != HttpStatusCode.OK) { HandleHTTPException(response); exceptionEvt = new GetPhotoStreamExceptionEventArgs(); exceptionEvt.UserId = userId; PhotoStreamException(this, exceptionEvt); return; } string jsonString = await reader.ReadToEndAsync().ConfigureAwait(false); if (!TryHandleResponseException(jsonString, () => { GetPhotoStreamAsync(userId, parameters); })) { exceptionEvt = new GetPhotoStreamExceptionEventArgs(); exceptionEvt.UserId = userId; PhotoStreamException(this, exceptionEvt); return; } GetPhotoStreamEventArgs args = new GetPhotoStreamEventArgs(); args.UserId = userId; args.Response = jsonString; PhotoStreamReturned.DispatchEvent(this, args); } }