private static void UpdateSourceField(Page page)
{
Match m;
if ((m = picasaAlbumUrlRegex.Match(page.text)).Success ||
(m = picasaUserUrlRegex.Match(page.text)).Success)
{
page.DownloadImage("temp_wiki_image");
string userId = m.Groups[2].ToString();
string chosenAlbumName = m.Groups.Count >= 3 ? m.Groups[3].ToString() : null;
// A common existing error
if (chosenAlbumName == "Eakins")
{
chosenAlbumName = "EakinsThomas";
}
string userApiUrl = "http://picasaweb.google.com/data/feed/api/user/" + userId;
string userApiPage = WgetToString(userApiUrl);
if (userApiPage == null) return;
Console.WriteLine("Searching for image URL. Retrieving info about candidate images...");
List<string> photoIds = new List<string>();
foreach (Match m2 in userPageAlbumIdRegex.Matches(userApiPage))
{
string albumName = m2.Groups[2].ToString();
if (chosenAlbumName == null || albumName == chosenAlbumName)
{
string albumId = m2.Groups[1].ToString();
string albumApiUrl = "http://picasaweb.google.com/data/feed/api/user/" + userId + "/albumid/" + albumId;
string albumApiPage = WgetToString(albumApiUrl);
foreach (Match m3 in albumPageImageIdRegex.Matches(albumApiPage))
{
string photoId = m3.Groups[1].ToString();
string licenseName = null;
PhotoInfo info = new PhotoInfo();
info.albumId = albumId;
info.albumName = albumName;
photoIds.Add(photoId);
if (idToPhotoInfo.ContainsKey(photoId)) continue;
if (!GetImageInfo(userId, albumId, photoId, out licenseName, out info.mediaUrl, out info.summary))
{
photoIds.Remove(photoId);
continue;
}
idToPhotoInfo.Add(photoId, info);
}
}
}
// Sort by the longest common substring between the summary and filename
photoIds.Sort(new Comparison<string>(delegate(string leftId, string rightId)
{
string titleNoPrefix = page.title.Substring("File:".Length);
return LongestCommonSubstring(idToPhotoInfo[rightId].summary, titleNoPrefix)
.CompareTo(LongestCommonSubstring(idToPhotoInfo[leftId].summary, titleNoPrefix));
}));
Console.WriteLine("Doing image comparisons...");
foreach (string photoId in photoIds)
{
PhotoInfo info = idToPhotoInfo[photoId];
string photoCachedFilename = "photo" + photoId;
while (!File.Exists(photoCachedFilename) || new FileInfo(photoCachedFilename).Length == 0)
{
string mediaUrlFull = new Regex("^(.*)/([^/]*)$").Replace(info.mediaUrl, "${1}/d/${2}");
Console.WriteLine("Fetching photo with ID " + photoId + "...");
WgetToFile(mediaUrlFull, photoCachedFilename);
}
if (FilesAreIdentical(photoCachedFilename, "temp_wiki_image"))
{
UpdateSource(page, userId, info.albumName, photoId);
return;
}
string failureReason;
if (UploadOriginalVersion(out failureReason, page, info.mediaUrl, "temp_wiki_image", photoCachedFilename, /*fetchThumbnailVersion*/false, /*allowWikiBigger*/true))
{
UpdateSource(page, userId, info.albumName, photoId);
return;
}
}
Console.WriteLine("Image not found");
}
else
{
if (!page.text.Contains("waldemar"))
{
// For debugging, catch ones where we couldn't figure out the Picasa URL
//Debugger.Break();
}
}
}
