/// <summary>
/// Constructs a collection of Flickr photographs. The collection is a result
/// of the passed in method, and numPerPage represents how many should be
/// fetched at a time.
/// </summary>
/// <param name="numPerPage"></param>
internal FlickrPhotos(FlickrMethod photoQuery, int numPerPage)
{
_photoQueryMethod = photoQuery;
_photoListCache = new Dictionary<int, List<FlickrPhoto>>();
_numPerPage = numPerPage;
_count = Int32.MaxValue;
_user = null;
}
internal FlickrPhotos(FlickrMethod method, int numPerPage, AuthorizedFlickrUser user)
: this(method, numPerPage)
{
_user = user;
}
/// <summary>
/// Gets the authorization info a logged in user
/// </summary>
/// <param name="frob"></param>
/// <returns></returns>
private static AuthorizedFlickrUser GetAuthorizationInfo(string frob)
{
AuthorizedFlickrUser flickrUser = null;
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.auth.getToken");
method.AddParameter("frob", frob);
XmlNode rspNode = null;
if (method.MakeSignedRequest(SharedSecret, out rspNode))
{
foreach (XmlNode outputArg in rspNode.ChildNodes)
{
if (outputArg.Name == "auth")
{
flickrUser = ParseAuthorizationInfo(outputArg.ChildNodes);
}
}
}
authorizedUser = flickrUser;
return flickrUser;
}
/// <summary>
/// Gets a frob from the Flickr service
/// </summary>
/// <returns></returns>
private static string GetFrob()
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.auth.getFrob");
XmlNode rspNode = null;
if (method.MakeSignedRequest(SharedSecret, out rspNode))
{
foreach (XmlNode outputArg in rspNode.ChildNodes)
{
if (outputArg.Name == "frob")
{
return outputArg.InnerText;
}
}
}
throw new Exception("Error getting frob");
}
/// <summary>
/// Searches for photos in the given latitude/longitude range.
/// </summary>
/// <param name="latLong"></param>
/// <returns></returns>
public static FlickrPhotos SearchForPhotos(Rect latLong)
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.photos.search");
method.AddParameter("accuracy", "1");
method.AddParameter("extras", "geo");
string searchString = latLong.Left + "," + latLong.Top + "," +
latLong.Right + "," + latLong.Bottom;
method.AddParameter("bbox", searchString);
FlickrPhotos photos = new FlickrPhotos(method, 50);
photos.GetPhoto(0); // we call this to force the call to get the total # count
return photos;
}
/// <summary>
/// Gets the photos returned from the given flickr method
/// </summary>
/// <param name="method"></param>
/// <param name="totalPhotos"></param>
/// <returns></returns>
internal static List<FlickrPhoto> GetPhotos(FlickrMethod method, ref int totalPhotos)
{
XmlNode rspNode = null;
List<FlickrPhoto> photos = new List<FlickrPhoto>();
DateTime time = DateTime.Now;
if (method.MakeRequest(out rspNode))
{
foreach (XmlNode outputArg in rspNode.ChildNodes)
{
if (outputArg.Name == "photos")
{
totalPhotos = Int32.Parse(outputArg.Attributes["total"].InnerText);
foreach (XmlNode photoNode in outputArg.ChildNodes)
{
photos.Add(new FlickrPhoto(photoNode.Attributes["id"].InnerText,
photoNode.Attributes["server"].InnerText,
photoNode.Attributes["secret"].InnerText,
method.AuthToken));
}
}
}
}
return photos;
}
/// <summary>
/// Searches for photos based upon the given query string
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public static FlickrPhotos SearchForPhotos(string query)
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.photos.search");
method.AddParameter("text", query);
method.AddParameter("sort", "relevance");
FlickrPhotos photos = new FlickrPhotos(method, 50);
photos.GetPhoto(0); // we call this to force the call to get the total # count
return photos;
}
/// <summary>
/// Posts the given comments about the given photo.
/// </summary>
/// <param name="comments"></param>
/// <param name="photo"></param>
/// <param name="user"></param>
/// <returns></returns>
public static bool PostComments(string comments, FlickrPhoto photo, AuthorizedFlickrUser user)
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.photos.comments.addComment",
user.Token, SharedSecret);
method.AddParameter("comment_text", comments);
method.AddParameter("photo_id", photo.ID);
XmlNode rspNode = null;
return method.MakeRequest(out rspNode);
}
/// <summary>
/// Gets the info about the given user
/// </summary>
/// <param name="userid"></param>
/// <returns></returns>
public static XmlNode GetUserInfo(string userid)
{
FlickrMethod method = new FlickrMethod(ApiKey, "flickr.people.getInfo");
method.AddParameter("user_id", userid);
XmlNode rspNode = null;
if (method.MakeRequest(out rspNode))
{
return rspNode.ChildNodes[0];
}
return null;
}
/// <summary>
/// Gets the list of a users most recently updated photos
/// </summary>
/// <param name="user"></param>
/// <returns></returns>
public static FlickrPhotos GetRecentlyUpdated(AuthorizedFlickrUser user)
{
FlickrMethod method = new FlickrMethod(ApiKey,
"flickr.photos.recentlyUpdated",
user.Token,
SharedSecret);
int updateTime = 1;
method.AddParameter("min_date", updateTime.ToString());
FlickrPhotos photos = new FlickrPhotos(method, 50, user);
photos.GetPhoto(0); // we call this to force the call to get the total # count
return photos;
}
/// <summary>
/// Gets the location of the given photo
/// </summary>
/// <param name="photo"></param>
/// <returns></returns>
public static string GetPhotoLocation(FlickrPhoto photo)
{
FlickrMethod method;
if (photo.AuthToken != null)
{
method = new FlickrMethod(ApiKey, "flickr.photos.geo.getLocation", photo.AuthToken, SharedSecret);
}
else
{
method = new FlickrMethod(ApiKey, "flickr.photos.geo.getLocation");
}
method.AddParameter("photo_id", photo.ID);
XmlNode rspNode = null;
if (method.MakeRequest(out rspNode))
{
return rspNode.InnerXml;
}
return "";
}