public void SetNewPicture(Picture p)
{
//make sure that file system redirection is disabled, otherwise the image shows up somewhere else.
// thanks to (http://stackoverflow.com/questions/6617530/could-not-find-a-part-of-the-path-c-windows-system32-oobe-info-background) for this
IntPtr ptr = new IntPtr();
bool isWow64FsRedirectionDisabled = WinAPI.Wow64DisableWow64FsRedirection(ref ptr);
var fiOriginal = new FileInfo(p.LocalPath);
if (fiOriginal.Exists && fiOriginal.Length > 0)
{
var outPutFile = Path.Combine(_oobeBackground, "backgroundDefault.jpg");
//delete any existing files
try { File.Delete(outPutFile); }
catch(Exception ex) {
Log.Logger.Write(string.Format("Error deleting existing Logon Background located at '{0}'. Exception details: {1}",outPutFile, ex.ToString()), Log.LoggerLevels.Errors);
}
//check if image resolution is a valid aspect ratio, if not try and fix it
using (FileStream fs = File.OpenRead(p.LocalPath))
{
using (Image img = Image.FromStream(fs))
{
var strRatio = Math.Round((double)img.Width / (double)img.Height, 3).ToString();
var aspectRatio = Convert.ToDouble(strRatio.Length <= 4 ? strRatio : strRatio.Substring(0, 4));
//aspect ratio list came from link: http://social.technet.microsoft.com/Forums/en-US/w7itproui/thread/b52689fb-c733-4229-8a10-4aa32d527832/
// this list may not be complete
List<double> validRatios = new List<double>();
validRatios.Add(1.25);
validRatios.Add(1.33);
validRatios.Add(1.60);
validRatios.Add(1.67);
validRatios.Add(1.77);
//if not a valid aspect ratio, adjust image
if (!validRatios.Contains(aspectRatio))
{
PictureManager.ShrinkImage(p.LocalPath, outPutFile, 0, 0, 90);
}
else
{
//save image to output file
img.Save(outPutFile);
}
}
}
//File.Copy(p.LocalPath, outPutFile, true);
var fiNewFile = new FileInfo(outPutFile);
//fix picture if it's to big
if (fiNewFile.Length / 1024 >= 245)
{
//reduce quality until we are under 245kb
PictureManager.ReduceQuality(outPutFile, outPutFile, 90);
}
}
}
public PictureDownload(Picture p)
{
if (string.IsNullOrEmpty(p.LocalPath)) throw new ArgumentNullException("The Local Path of the picture must be defined before downloading it");
this.Picture = p;
//set default priority
this.Priority = 999999999;
//set default status of Stopped
Status = DownloadStatus.Stopped;
//setup webclient events
_client.DownloadFileCompleted += new System.ComponentModel.AsyncCompletedEventHandler(_client_DownloadFileCompleted);
_client.DownloadProgressChanged += new DownloadProgressChangedEventHandler(_client_DownloadProgressChanged);
}
public void BanPicture(Picture p)
{
string banString =
(p.Properties.ContainsKey(Picture.StandardProperties.BanImageKey)
? p.Properties[Picture.StandardProperties.BanImageKey] : p.Url);
//add the url to the ban list
Settings.CurrentSettings.BannedImages.Add(banString);
//save the settings file
Settings.CurrentSettings.Save(Settings.AppPath + "\\settings.conf");
try
{
//delete the file from the local disk
File.Delete(p.LocalPath);
}
catch (Exception ex)
{
Log.Logger.Write(string.Format("Error deleting banned pictures. Exception details: {0}", ex.ToString()), Log.LoggerLevels.Errors);
}
//skip to next photo
SkipToNextPicture();
}
public PictureDownload GetPicture(Picture pic, bool queueForDownload)
{
//check if the requested image exists, if it does then return
//if image already has a local path then use it (just what we need for local provider where images are not stored in cache).
var picturePath = string.IsNullOrEmpty(pic.LocalPath) ? pic.CalculateLocalPath(SaveFolder) : pic.LocalPath;
pic.LocalPath = picturePath;
if (pic.IsGood)
{
//if the wallpaper image already exists, and passes our 0 size check then fire the event
return new PictureDownload(pic);
}
var fi = new FileInfo(picturePath);
//for files that do not exist "Delete" does nothing per MSDN docs
try { fi.Delete(); }
catch (Exception ex)
{
Log.Logger.Write(string.Format("Error deleting 0 byte file '{0}' while prepareing to redownload it. Exception details: {1}", fi.FullName, ex.ToString()), Log.LoggerLevels.Errors);
}
PictureDownload pd = new PictureDownload(pic);
if (queueForDownload)
{
//add file to Queue
QueuePicture(pd);
}
return pd;
}
/// <summary>
/// Retrieves a random picture from the picture list
/// </summary>
/// <param name="pl">Picture list from which to retrieve pictures</param>
/// <param name="saveFolder">Location where to save the picture</param>
/// <param name="currentPicture">(optional) the current picture, to avoid repeates. Pass null if not needed or this is the first picture.</param>
public PictureDownload GetPicture(PictureList pl, Picture currentPicture, bool queueForDownload)
{
Picture pic = null;
if (pl == null || pl.Pictures.Count == 0) return null;
//pick the next picture at random
// only "non-random" bit is that we make sure that the next random picture isn't the same as our current one
var index = 0;
do
{
index = rnd.Next(pl.Pictures.Count);
} while (currentPicture != null && currentPicture.Url == pl.Pictures[index].Url);
pic = pl.Pictures[index];
//download current picture first
PictureDownload pd = GetPicture(pic, queueForDownload);
return pd;
}
//find links to pages with wallpaper only with matching resolution
private List<Picture> ParsePictures(string content)
{
var picsRegex = new Regex("<a href=\"(?<link>http://wallbase.cc/wallpaper/.*?)\".*?>.*?<img.*?data-original=\"(?<img>.*?)\".*?</a>", RegexOptions.Singleline);
var picsMatches = picsRegex.Matches(content);
var result = new List<Picture>();
for (var i = 0; i < picsMatches.Count; i++)
{
var pic = new Picture();
pic.Url = picsMatches[i].Groups["link"].Value;
pic.Properties.Add(Picture.StandardProperties.Thumbnail, picsMatches[i].Groups["img"].Value);
result.Add(pic);
}
resultCount = result.Count;
return result;
}
public PictureList GetPictures(PictureSearch ps)
{
var result = new PictureList() { FetchDate = DateTime.Now };
//load provider search settings
GoogleImageSearchSettings giss = GoogleImageSearchSettings.LoadFromXML(ps.SearchProvider.ProviderConfig) ??
new GoogleImageSearchSettings();
//if search is empty, return now since we can't search without it
if (string.IsNullOrEmpty(giss.Query)) return result;
var pageIndex = ps.PageToRetrieve; //set page to retrieve if one specified
var imgFoundCount = 0;
//if max picture count is 0, then no maximum, else specified max
var maxPictureCount = ps.MaxPictureCount > 0?ps.MaxPictureCount : int.MaxValue;
//build tbs strring
var tbs = "";//isz:ex,iszw:{1},iszh:{2}
//handle sizeing
if (giss.ImageHeight > 0 && giss.ImageWidth > 0)
{
tbs += string.Format("isz:ex,iszw:{0},iszh:{1},", giss.ImageWidth, giss.ImageHeight);
}
//handle colors
if (!string.IsNullOrEmpty(giss.Color))
{
tbs += GoogleImageSearchSettings.GoogleImageColors.GetColorSearchString((from c in GoogleImageSearchSettings.GoogleImageColors.GetColors() where c.Value == giss.Color select c).Single()) + ",";
}
//if we have a filter string then add it and trim off trailing commas
if (!string.IsNullOrEmpty(tbs)) tbs = ("&tbs=" + tbs).Trim(new char[]{','});
//do safe search setup (off/strict/moderate) this is part of the session and tracked via cookies
//SetSafeSearchSetting(giss.GoogleSafeSearchOption);
do
{
//build URL from query, dimensions and page index
var url = string.Format(baseURL, giss.Query, tbs, (pageIndex * 20));
var response = string.Empty;
using (var client = new HttpUtility.CookieAwareWebClient(_cookies))
{
response = client.DownloadString(url);
}
var images = _imagesRegex2.Matches(response);
//track number of images found for paging purposes
imgFoundCount = images.Count;
//convert images found into picture entries
foreach (Match item in images)
{
var purl = item.Groups["imgurlgrp"].Value;
var referrer = item.Groups["imgrefgrp"].Value;
var thumbnail = item.Groups["thumbURL"].Value;
//get id and trim if necessary (ran into a few cases of rediculously long filenames)
var id = System.IO.Path.GetFileNameWithoutExtension(purl);
if (id.Length > 50) id = id.Substring(0, 50);
//because google images come from so many sites it's not uncommon to have duplicate file names. (we fix this)
id = string.Format("{0}_{1}", id, purl.GetHashCode());
var p = new Picture() { Url = purl, Id = id };
p.Properties.Add(Picture.StandardProperties.Thumbnail, thumbnail);
p.Properties.Add(Picture.StandardProperties.Referrer, referrer);
result.Pictures.Add(p);
}
//if we have an image ban list check for them
// doing this in the provider instead of picture manager
// ensures that our count does not go down if we have a max
if (ps.BannedURLs != null && ps.BannedURLs.Count > 0)
{
result.Pictures = (from c in result.Pictures where !(ps.BannedURLs.Contains(c.Url)) select c).ToList();
}
//increment page index so we can get the next 20 images if they exist
pageIndex++;
// Max Picture count is defined in search settings passed in, check for it here too
} while (imgFoundCount > 0 && result.Pictures.Count < maxPictureCount && ps.PageToRetrieve == 0);
result.Pictures = result.Pictures.Take(maxPictureCount).ToList();
return result;
}
