public void LoadConfiguration(string config)
{
//fresh config
_giss = string.IsNullOrEmpty(config) ? new GoogleImageSearchSettings() : GoogleImageSearchSettings.LoadFromXML(config);
comboBox1.SelectedValue = _giss.Color;
txtHeight.Text = _giss.ImageHeight.ToString();
txtWidth.Text = _giss.ImageWidth.ToString();
}
public void LoadConfiguration(string config)
{
//fresh config
if (string.IsNullOrEmpty(config))
{
giss = new GoogleImageSearchSettings();
}
//deserialize
else
{
giss = GoogleImageSearchSettings.LoadFromXML(config);
}
comboBox1.SelectedValue = giss.Color;
txtHeight.Text = giss.ImageHeight.ToString();
txtWidth.Text = giss.ImageWidth.ToString();
}
public PictureList GetPictures(PictureSearch ps)
{
var result = new PictureList()
{
FetchDate = DateTime.Now
};
//load provider search settings
GoogleImageSearchSettings giss = GoogleImageSearchSettings.LoadFromXML(ps.SearchProvider.ProviderConfig);
//to help not have so many null checks, if no search settings provided then use default ones
if (giss == null)
{
giss = 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.ToString(), giss.ImageHeight.ToString());
}
//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).ToString());
var response = string.Empty;
using (HttpUtility.CookieAwareWebClient 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().ToString());
Picture 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);
}
