public async Task AddSerializedAsset(IElement element, string uriAttribute)
{
var src = element.Attributes[uriAttribute].Value;
// remove any querystring from images
if (element.TagName.ToLower() == "img")
{
var qI = src.LastIndexOf('?');
if (qI > 0)
{
src = src.Substring(0, qI);
}
var hI = src.LastIndexOf('#');
if (hI > 0)
{
src = src.Substring(0, hI);
}
}
var localPath = await Zipper.ReturnLocalPath(src);
if (localPath != string.Empty)
{
var suffix = src.Split('.').Last().ToLower();
if (suffix == localPath)
{
switch (element.TagName.ToLower())
{
case "link":
suffix = "css";
break;
case "script":
suffix = "js";
break;
default:
break;
}
;
}
var newSrc = Guid.NewGuid().ToString().Replace("-", "") + "." + suffix;
if (!this.Assets.Any(a => a.OriginalPath == localPath))
{
this.Assets.Add(new AssetPath
{
OriginalPath = localPath,
SerializedName = newSrc,
AssetType = suffix
});
}
}
}
private async Task <AssetPathCollection> ExtractAssets(string source, string suffix, string pagePath, AssetPathCollection assets)
{
if (suffix.ToLower().StartsWith("htm"))
{
var parser = new AngleSharp.Parser.Html.HtmlParser();
var doc = parser.Parse(source);
var images = doc.Images
.Where(x => x.HasAttribute("src"));
var styles = doc.GetElementsByTagName("link")
.Where(l => l.Attributes["rel"].Value.Trim().ToLower() == "stylesheet")
.Where(c => c.HasAttribute("href"));
var scripts = doc.GetElementsByTagName("script")
.Where(x => x.HasAttribute("src"));
assets.AddSerializedAssets(images, "src");
assets.AddSerializedAssets(scripts, "src");
assets.AddSerializedAssets(styles, "href");
foreach (var asset in assets.Assets.Where(a => a.AssetType == "css"))
{
var content = await Zipper.GetStringAsset(asset.OriginalPath, mapPathResolver, webRoot, pagePath);
var binaryContent = Encoding.UTF8.GetBytes(content);
asset.Content = binaryContent;
await ExtractAssets(content, "css", asset.OriginalPath, assets);
}
foreach (var asset in assets.Assets.Where(a => a.AssetType != "css"))
{
var binaryContent = await Zipper.GetBinaryAsset(asset.OriginalPath, mapPathResolver, webRoot, pagePath);
asset.Content = binaryContent;
}
}
else if (suffix.ToLower() == "css")
{
var urls = Zipper.ExtaxtUrlsFromStyle(source);
foreach (var url in urls)
{
var csslocalPath = await Zipper.ReturnLocalPath(url);
var csssuffix = csslocalPath.Split('.').Last();
var newUrl = Guid.NewGuid().ToString().Replace("-", "") + "." + suffix;
source = source.Replace(url, newUrl);
//assets.AddSerializedAssets()
//if (!doneAssets.Contains(newUrl))
//{
// zipArchive.AddBinaryAssetToArchive(newUrl, localPath, mapPathResolver, webRoot, serialStyle.Key);
// doneAssets.Add(newUrl);
//}
}
}
return(assets);
}