/// <summary>
/// Download some data located at the specified url.
/// </summary>
public static byte[] DownloadData(Uri uri, WebProxy proxy)
{
// is it a local path?
if (uri.IsFile)
{
try
{
// just read the picture from the file system
return File.ReadAllBytes(uri.LocalPath);
}
catch (IOException)
{
return null;
}
catch(SystemException exc)
{
if(exc is UnauthorizedAccessException || exc is System.Security.SecurityException || exc is NotSupportedException)
return null;
throw;
}
}
System.Net.WebClient webClient = new System.Net.WebClient();
if (proxy != null)
{
if(proxy.Credentials != null)
webClient.Credentials = proxy.Credentials;
if (proxy.Proxy != null)
webClient.Proxy = proxy.Proxy;
}
try
{
return webClient.DownloadData(uri);
}
catch (System.Net.WebException)
{
return null;
}
}
public ImageProvisioningProvider(WebProxy proxy, HtmlImageInfo image)
{
this.proxy = proxy;
this.imageInfo = image;
}