public Stream ReadRecordingFile(int id)
{
try
{
WebRecordingFileInfo info = GetRecordingFileInfo(id);
// read it as a regular file
if (info.Exists && info.IsLocalFile && !info.OnNetworkDrive && File.Exists(info.Path))
{
return(new FileStream(info.Path, FileMode.Open, FileAccess.Read));
}
// try to load it from a network drive
if (info.Exists && info.IsLocalFile && info.OnNetworkDrive)
{
using (var context = NetworkContextFactory.Create())
return(new FileStream(context.RewritePath(info.Path), FileMode.Open, FileAccess.Read));
}
// failed
Log.Warn("No method to read file for recording {0} with path {1}", id, info.Path);
WCFUtil.SetResponseCode(System.Net.HttpStatusCode.NotFound);
return(Stream.Null);
}
catch (Exception ex)
{
Log.Warn(String.Format("Failed to read file for recording {0}", id), ex);
WCFUtil.SetResponseCode(System.Net.HttpStatusCode.InternalServerError);
return(Stream.Null);
}
}
public bool Setup()
{
try
{
using (var context = NetworkContextFactory.CreateImpersonationContext())
{
DataOutputStream = new FileStream(context.RewritePath(source), FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
}
catch (Exception e)
{
StreamLog.Error(identifier, "Failed to setup ImpersonationInputUnit", e);
return(false);
}
return(true);
}
public WebRecordingFileInfo GetRecordingFileInfo(int id)
{
string filename = String.Empty;
try
{
filename = GetRecordingById(id).FileName;
bool tryImpersonation = false;
try
{
var fileInfo = new WebRecordingFileInfo(new FileInfo(filename));
if (fileInfo != null && fileInfo.Exists)
{
return(fileInfo);
}
tryImpersonation = PathUtil.MightBeOnNetworkDrive(filename);
}
catch (UnauthorizedAccessException)
{
tryImpersonation = true;
}
if (tryImpersonation && Configuration.Services.NetworkImpersonation.IsEnabled())
{
using (var context = NetworkContextFactory.CreateImpersonationContext())
{
var ret = new WebRecordingFileInfo(context.RewritePath(filename));
ret.IsLocalFile = true;
ret.OnNetworkDrive = true;
return(ret);
}
}
}
catch (FileNotFoundException)
{
Log.Info("Failed to load fileinfo for recording {0} because it does not exists at path {1}", id, filename);
}
catch (Exception ex)
{
Log.Warn("Failed to load fileinfo for recording", ex);
}
return(new WebRecordingFileInfo());
}
public INetworkContext CreateNetworkContext()
{
return(NetworkContextFactory.Create(NeedsImpersonation));
}
