internal static List <NNTPInput> Parse(Stream xXML)
{
NNTPInput nI = null;
List <NNTPInput> cList = new List <NNTPInput>();
try
{
XmlReader xR = XmlReader.Create(xXML, Common.ReaderSettings);
while (xR.ReadToFollowing("file"))
{
nI = ParseSegments(xR.ReadSubtree(), xR.GetAttribute("subject"));
if ((nI != null) && (nI.Segments.Count > 0))
{
cList.Add(nI);
}
}
}
catch { return(null); }
if (cList.Count == 0)
{
return(null);
}
else
{
return(cList);
}
}
private static NNTPInput ParseSegments(XmlReader sR, string Subject)
{
NNTPInput nI = null;
try
{
nI = new NNTPInput(Subject);
while (sR.ReadToFollowing("segment"))
{
int lBytes = 0;
int lNumber = 0;
while (sR.MoveToNextAttribute())
{
switch (sR.Name.ToLower())
{
case "bytes":
lBytes = sR.ReadContentAsInt();
break;
case "number":
lNumber = sR.ReadContentAsInt();
break;
}
}
sR.MoveToContent();
sR.Read();
string sMsgID = sR.Value;
if (sMsgID.Length < 1)
{
return(null);
}
if ((lNumber > 0) && (lBytes > 0))
{
nI.Segments.Add(new NNTPSegment(lNumber, lBytes, sMsgID));
}
}
}
catch { return(null); }
if ((nI != null) && (nI.Segments.Count > 0))
{
return(nI);
}
return(null);
}
//internal VirtualSlot Get(int ID) { lock (zServers) { return zServers.Slots.Item(ID); } }
//public string Add(string Name, Stream NZB)
//{
// // Asynchronous, returns the Slot ID
// CancellationTokenSource vToken = null;
// if (NZB == null) { return ""; }
// if (Name == null) { return ""; }
// if (Name.Length == 0) { return ""; }
// //string SID = Module.RandomString(6);
// Action aStart = (Action)(() => ImportNZB(Name, SID, zServers.Slots, NZB, vToken));
// Task zAdd = new Task(aStart, vToken.Token);
// zAdd.Start();
// return SID;
//}
//public string Add(string Name, List<string> Commands)
//{
// // Asynchronous, returns the Slot ID
// int cI = 1;
// if (Commands == null) { return ""; }
// if (Commands.Count == 0) { return ""; }
// NNTPInput nI = new NNTPInput(Name);
// List<NNTPInput> cList = new List<NNTPInput>();
// foreach (string sC in Commands)
// {
// if (sC == null) { continue; }
// if (sC.Length == 0) { continue; }
// NNTPSegment nS = new NNTPSegment();
// nS.Index = cI;
// nS.Command = sC;
// nI.Segments.Add(nS);
// }
// if (nI.Segments.Count == 0) { return ""; }
// cList.Add(nI);
// //string SID = Module.RandomString(6);
// CancellationTokenSource vToken = new CancellationTokenSource();
// Action aStart = (Action)(() => InternalAdd(nI.Name, SID, zServers.Slots, cList, vToken.Token));
// Task zAdd = new Task(aStart, vToken.Token);
// zAdd.Start();
// return SID;
//}
public string Send(string Newsgroup, List <string> Command, CancellationTokenSource vToken = null)
{
// Synchronous, returns the last commands response
if (Newsgroup == null)
{
throw new Exception("No group");
}
if (Command == null)
{
throw new Exception("No command");
}
if (zServers.Count == 0)
{
throw new Exception("No server");
}
List <string> tList = new List <string>();
tList.Add("GROUP " + Newsgroup.ToLower());
tList.AddRange(Command);
NNTPSegment nS = new NNTPSegment();
NNTPInput nI = new NNTPInput("");
List <NNTPInput> cList = new List <NNTPInput>();
nS.Index = 1;
nS.Commands = tList;
nI.Segments.Add(nS);
cList.Add(nI);
ManualResetEventSlim wHandle;
wHandle = new ManualResetEventSlim(false);
if (vToken == null)
{
vToken = new CancellationTokenSource();
}
VirtualSlot vSlot = InternalAdd(nI.Name, zServers.Slots, cList, vToken.Token, wHandle);
if (vSlot == null)
{
throw new Exception("No slot");
}
if (vToken.Token.IsCancellationRequested)
{
throw new Exception("Cancelled");
}
List <WaitHandle> wList = new List <WaitHandle>();
wList.Add(vToken.Token.WaitHandle);
if (vSlot.WaitHandle == null)
{
throw new Exception("No waithandle");
}
wList.Add(vSlot.WaitHandle.WaitHandle);
vSlot.Status = SlotStatus.Downloading;
Notify();
WaitHandle wRet = Common.WaitList(wList);
if ((wRet == null) || (wRet.Handle == vToken.Token.WaitHandle.Handle))
{
throw new Exception("Cancelled");
}
if (vToken.Token.IsCancellationRequested)
{
throw new Exception("Cancelled");
}
string zOut = null;
if (vSlot.Status != SlotStatus.Completed)
{
if (vSlot.Status == SlotStatus.Failed)
{
zOut = vSlot.StatusLine;
}
else
{
zOut = Common.TranslateStatus((int)vSlot.Status);
}
int vId = vSlot.ID;
vSlot = null;
Remove(vId);
if ((zOut == null) || (zOut.Length == 0))
{
zOut = "Unknown";
}
throw new Exception(zOut);
}
else
{
foreach (VirtualFile vFile in vSlot.List())
{
if (vFile.Output == null)
{
continue;
}
if (vFile.Output.Data == null)
{
continue;
}
if (vFile.Output.Data.Length == 0)
{
continue;
}
vFile.Output.Data.Position = 0;
zOut = Common.GetString(vFile.Output.Data);
}
int vId = vSlot.ID;
vSlot = null;
Remove(vId);
return(zOut);
}
}