protected override MediaOptions GetOptions()
{
var result = base.GetOptions();
if (result.Height > 0 || result.Width > 0 || result.Scale > 0)
{
if (!HashingUtils.IsUrlHashValid(InnerRequest.RawUrl))
{
// hash invalid remove scaling
result.Height = 0;
result.Width = 0;
result.Scale = 0;
}
}
return(result);
}
private void ReplaceReference(string renderedText, StringBuilder builder, int tagIndex, ref int index)
{
int urlStartIndex = renderedText.IndexOf("src", tagIndex, StringComparison.OrdinalIgnoreCase) + 3;
urlStartIndex = renderedText.IndexOfAny(quotes, urlStartIndex) + 1;
int urlEndIndex = renderedText.IndexOfAny(quotes, urlStartIndex);
index = urlEndIndex;
if (renderedText.IndexOf("?", urlStartIndex, urlEndIndex - urlStartIndex, StringComparison.Ordinal) < 0)
{
builder.Append(renderedText.Substring(tagIndex, urlEndIndex - tagIndex));
return; // no parameters, no need to arm the URL;
}
string url = renderedText.Substring(urlStartIndex, urlEndIndex - urlStartIndex);
url = HashingUtils.ProtectAssetUrl(url);
builder.Append(renderedText.Substring(tagIndex, urlStartIndex - tagIndex));
builder.Append(url);
// we don't need to copy the rest of the tag as it will be supplemented in the next runs
}