private byte[] GetFileBytes(HttpContext context, string virtualPath, Encoding encoding)
{
if (virtualPath.StartsWith("http://", StringComparison.InvariantCultureIgnoreCase) || virtualPath.StartsWith("https://", StringComparison.InvariantCultureIgnoreCase))
{
using (var client = new WebClient())
{
return client.DownloadData(virtualPath);
}
}
else
{
virtualPath = CombinerHelper.GetUrlFromFilename(_path, virtualPath);
string physicalPath = HttpContext.Current.Server.MapPath(virtualPath);
string extension = Path.GetExtension(virtualPath);
if (!_allowedFileExtension.Contains(extension))
throw new SecurityException("Combiner couldn't find a valid parser for file " + virtualPath);
byte[] bytes = new byte[1024];
// Don't compress if it already is compressed
if (!(physicalPath.Contains(".min.") || physicalPath.Contains("-min.")))
{
// Use minified file if one exists
string newPhysicalPath = physicalPath.Replace(extension, "");
newPhysicalPath = newPhysicalPath + ".min" + extension;
if (File.Exists(newPhysicalPath))
{
physicalPath = newPhysicalPath;
bytes = File.ReadAllBytes(physicalPath);
}
else
{
if (File.Exists(physicalPath))
{
// Compress on-the-fly using YUI
string uncompresed = File.ReadAllText(physicalPath);
string compressed = "";
try
{
if (extension == ".css")
{
compressed = new CssCompressor().Compress(uncompresed);
// Fix for media-queries, please remove once its no longer needed
compressed = compressed.Replace(" screen and(", " screen and (");
}
else if (extension == ".js")
{
compressed = new JavaScriptCompressor().Compress(uncompresed);
}
}
catch (Exception ex)
{
// Something went wrong... let's use the uncompressed version
//Logger.Fatal("Error compressing " + virtualPath, ex);
compressed = "/* Error compressing */\n" + uncompresed;
}
bytes = encoding.GetBytes(compressed);
}
else
{
// File does not exist
throw new Exception(physicalPath + " does not exist");
}
}
}
else
{
// File already compressed. Lets let it
string alreadycompresed = File.ReadAllText(physicalPath);
bytes = encoding.GetBytes(alreadycompresed);
}
// TODO: Convert unicode files to specified encoding. For now, assuming
// files are either ASCII or UTF8
return bytes;
}
}
