| public DownloadFile ( string url, string path ) : void | ||
| url | string | |
| path | string | |
| return | void | |
public Stream OpenFile(string name, string url, bool isData)
{
if (!Enabled)
{
return(null);
}
if (isData && !CacheData)
{
return(null);
}
string file = Path.Combine(_cachePath, name);
Logger.WriteLine("CDNCache: Opening file {0}", file);
FileInfo fi = new FileInfo(file);
if (!fi.Exists)
{
_downloader.DownloadFile(url, file);
}
if (Validate)
{
CacheMetaData meta = CacheMetaData.Load(file) ?? _downloader.GetMetaData(url, file);
if (meta == null)
{
throw new Exception(string.Format("unable to validate file {0}", file));
}
bool sizeOk, md5Ok;
using (FileStream fs = new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
sizeOk = fs.Length == meta.Size;
md5Ok = _md5.ComputeHash(fs).EqualsTo(meta.MD5);
}
if (!sizeOk || !md5Ok)
{
_downloader.DownloadFile(url, file);
}
}
return(new FileStream(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite));
}