/// <summary>
/// Load page with query string of Flickr and get logged user
/// </summary>
protected void Page_Load(object sender, EventArgs e)
{
try
{
// Verify if query string contains authentication values
if (Request.QueryString["oauth_verifier"] != null && Session["RequestToken"] != null)
{
Flickr flickr = FlickrManager.GetInstance();
OAuthRequestToken requestToken = Session["RequestToken"] as OAuthRequestToken;
try
{
OAuthAccessToken accessToken = flickr.OAuthGetAccessToken(requestToken, Request.QueryString["oauth_verifier"]);
FlickrManager.OAuthToken = accessToken;
}
catch (OAuthException)
{
Debug.Write("[ERROR] - Error to get Flickr access token.");
}
}
// Verify if not post back
if (!Page.IsPostBack)
{
SetLogged();
}
}
catch (System.Exception)
{
ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "alert", "alert('Ocorreu um erro ao carregar as fotos.');", true);
}
}
/// <summary>
/// Flickr login button clicked
/// </summary>
protected void ibtnAuthenticate_Click(object sender, ImageClickEventArgs e)
{
try
{
Flickr flickr = FlickrManager.GetInstance();
OAuthRequestToken token = flickr.OAuthGetRequestToken(Request.Url.AbsoluteUri);
Session["RequestToken"] = token;
string url = flickr.OAuthCalculateAuthorizationUrl(token.Token, AuthLevel.Read);
Response.Redirect(url);
}
catch (System.Exception)
{
ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "alert", "alert('Ocorreu um erro ao fazer login.');", true);
}
}
/// <summary>
/// Method responsible for getting and analyzing images
/// </summary>
private void GetPhotostream()
{
try
{
// Public user Id for this sample
string userId = ConfigurationManager.AppSettings["FlickrDefaultKey"];
int photosPerPage = int.Parse(ConfigurationManager.AppSettings["FlickrPhotoPerPage"]);
Flickr flickr = FlickrManager.GetAuthInstance();
PhotoCollection photos;
if (FlickrManager.OAuthToken != null)
{
userId = FlickrManager.OAuthToken.UserId;
photos = flickr.PeopleGetPublicPhotos(userId, 0, photosPerPage, SafetyLevel.None, PhotoSearchExtras.PathAlias);
}
else
{
// If not logged, get photos from public group
photos = flickr.GroupsPoolsGetPhotos(userId, 0, photosPerPage);
}
var list = photos.ToList();
ItemList = new List <Item>();
if (list != null && list.Count > 0)
{
foreach (var photo in list)
{
Item item = new Item();
item.URL = photo.LargeUrl;
ItemList.Add(item);
}
}
rptImages.DataSource = ItemList;
rptImages.DataBind();
}
catch (System.Exception)
{
ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "alert", "alert('Ocorreu um erro ao carregar as fotos.');", true);
}
}