public Stream ReadRecordingFile(int id)
{
try
{
WebRecordingFileInfo info = GetRecordingFileInfo(id);
// return it as a simple file
if (info.IsLocalFile && File.Exists(info.Path))
{
return(new FileStream(info.Path, FileMode.Open, FileAccess.Read));
}
// try to load it from a network drive
if (info.OnNetworkDrive && info.Exists)
{
using (NetworkShareImpersonator impersonation = new NetworkShareImpersonator())
{
return(new FileStream(info.Path, FileMode.Open, FileAccess.Read));
}
}
// failed
Log.Warn("No method to read file for recording {0}", id);
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 WebRecordingFileInfo GetRecordingFileInfo(int id)
{
try
{
string filename = GetRecordingById(id).FileName;
try
{
return(new WebRecordingFileInfo(new FileInfo(filename)));
}
catch (UnauthorizedAccessException)
{
// access denied, try impersonation when on a network share
if (new Uri(filename).IsUnc)
{
using (NetworkShareImpersonator impersonation = new NetworkShareImpersonator())
{
var ret = new WebRecordingFileInfo(filename);
ret.IsLocalFile = Configuration.Services.NetworkImpersonation.ReadInStreamingService;
ret.OnNetworkDrive = true;
return(ret);
}
}
}
}
catch (Exception ex)
{
Log.Warn("Failed to load fileinfo for recording", ex);
}
return(new WebRecordingFileInfo());
}
public bool Setup()
{
try
{
using (var impersonator = new NetworkShareImpersonator())
{
DataOutputStream = new FileStream(source, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
}
}
catch (Exception e)
{
Log.Error("Failed to setup ImpersonationInputUnit", e);
return(false);
}
return(true);
}
public WebFileInfo GetFileInfo(int?provider, WebMediaType mediatype, WebFileType filetype, string id, int offset)
{
string path = "";
try
{
path = GetPathList(provider, mediatype, filetype, id).ElementAt(offset);
try
{
// first try it the usual way
return(GetLibrary(provider, mediatype).GetFileInfo(path).Finalize(provider, mediatype));
}
catch (UnauthorizedAccessException)
{
// access denied, try impersonation
if (new Uri(path).IsUnc)
{
using (NetworkShareImpersonator impersonation = new NetworkShareImpersonator())
{
var ret = new WebFileInfo(path);
ret.IsLocalFile = Configuration.Services.NetworkImpersonation.ReadInStreamingService;
ret.OnNetworkDrive = true;
return(ret);
}
}
}
}
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
});
}
public Stream RetrieveFile(int?provider, WebMediaType mediatype, WebFileType filetype, string id, int offset)
{
try
{
string path = GetPathList(provider, mediatype, filetype, id).ElementAt(offset);
WebFileInfo info = GetFileInfo(provider, mediatype, filetype, id, offset);
// first try to read the file
if (info.IsLocalFile && File.Exists(path))
{
return(new FileStream(path, FileMode.Open, FileAccess.Read));
}
// maybe the plugin has some magic
if (!info.IsLocalFile && info.Exists && !info.OnNetworkDrive)
{
return(GetLibrary(provider, mediatype).GetFile(path));
}
// try to load it from a network drive
if (info.OnNetworkDrive && info.Exists)
{
using (NetworkShareImpersonator impersonation = new NetworkShareImpersonator())
{
return(new FileStream(path, FileMode.Open, FileAccess.Read));
}
}
// fail
Log.Warn("Requested non-existing or non-accessible file mediatype={0} filetype={1} id={2} offset={3}", mediatype, filetype, id, offset);
WCFUtil.SetResponseCode(System.Net.HttpStatusCode.NotFound);
return(Stream.Null);
}
catch (Exception ex)
{
Log.Info("Failed to retrieve file for mediatype=" + mediatype + ", filetype=" + filetype + ", id=" + id + " and offset=" + offset, ex);
WCFUtil.SetResponseCode(System.Net.HttpStatusCode.InternalServerError);
return(Stream.Null);
}
}
