public WebFileInfo GetFileInfo(int? provider, WebMediaType mediatype, WebFileType filetype, string id, int offset)
{
string path = "";
try
{
path = GetPathList(provider, mediatype, filetype, id).ElementAt(offset);
WebFileInfo retVal = null;
bool tryImpersonation = false;
try
{
// first try it the usual way
retVal = GetLibrary(provider, mediatype).GetFileInfo(path).Finalize(provider, mediatype);
tryImpersonation = retVal == null || !retVal.Exists;
}
catch (UnauthorizedAccessException)
{
// access denied, try impersonation
tryImpersonation = true;
}
if (tryImpersonation && new Uri(path).IsUnc && !FileUtil.IsAccessible(path))
{
using (var impersonator = new NetworkShareImpersonator())
{
retVal = new WebFileInfo(path);
retVal.IsLocalFile = Configuration.Services.NetworkImpersonation.ReadInStreamingService;
retVal.OnNetworkDrive = true;
}
}
// Make sure to always the path property, even if the file doesn't exist. This makes debugging a lot easier, as you get actual paths in your logs now.
retVal.Path = PathUtil.StripFileProtocolPrefix(path);
retVal.PID = ProviderHandler.GetProviderId(mediatype.ToProviderType(), provider);
return retVal;
}
catch (ArgumentOutOfRangeException)
{
Log.Info("Cannot resolve mediatype={0}, filetype={1}, provider={2}, id={3}, offset={4}", mediatype, filetype, provider, id, offset);
}
catch (FileNotFoundException)
{
Log.Info("Failed to load fileinfo for non-existing file mediatype={0}, filetype={1}, provider={5}, id={2}, offset={3} (resulting in path={4})", mediatype, filetype, id, offset, path, provider);
}
catch (Exception ex)
{
Log.Info(String.Format("Failed to load fileinfo for mediatype={0}, filetype={1}, provider={5}, id={2}, offset={3} (resulting in path={4})", mediatype, filetype, id, offset, path, provider), ex);
}
return new WebFileInfo()
{
Exists = false,
PID = ProviderHandler.GetProviderId(mediatype.ToProviderType(), provider),
Path = String.IsNullOrWhiteSpace(path) ? null : PathUtil.StripFileProtocolPrefix(path)
};
}
public static List <T> ForList <T>(IEnumerable <T> list, int?provider, WebMediaType providerType) where T : WebObject
{
return(ForList(list, provider, providerType.ToProviderType()));
}
public static T Finalize <T>(this T item, int?provider, WebMediaType mediatype) where T : WebObject
{
return(Finalization.ForItem(item, provider, mediatype.ToProviderType()));
}
public static T ForItem <T>(T item, int?provider, WebMediaType providerType) where T : WebObject
{
return(ForItem(item, provider, providerType.ToProviderType()));
}
