public static string ProcessImage(this IUrlHelper urlHelper, string url, int?width = null, int?height = null, int?quality = null,
ImageMode?mode = null, ImageFormat?format = null)
{
string queryString = "?";
if (width != null)
{
queryString += $"width={width}&";
}
if (height != null)
{
queryString += $"height={height}&";
}
if (quality != null)
{
queryString += $"quality={quality}&";
}
if (mode != null)
{
queryString += $"format={format}&";
}
if (format != null)
{
queryString += $"mode={mode}&";
}
queryString = queryString.TrimEnd('?', '&');
return(url != null?WebPathHelper.CombineUrlParts(url, queryString) : null);
}
public string GetSourceUrl(string directoryName, string fileName)
{
if (directoryName == null || fileName == null)
{
return(null);
}
var factory = _actionContextAccessor.ActionContext.HttpContext.RequestServices.GetRequiredService <IUrlHelperFactory>();
var urlHelper = factory.GetUrlHelper(_actionContextAccessor.ActionContext);
string sourceUrl = urlHelper.ContentLink(WebPathHelper.CombineUrlParts(directoryUrl, directoryName, fileName));
return(sourceUrl);
}