protected void HandleNotifyRequest(SimpleHTTPRequest header, EndpointConfiguration config, IPEndPoint remoteEndPoint)
{
if (header.Param != "*")
{
// Invalid message
return;
}
HTTPVersion httpVersion;
if (!HTTPVersion.TryParse(header.HttpVersion, out httpVersion))
{
// Invalid message
return;
}
// HOST not interesting
//string host = header["HOST"];
string cacheControl = header["CACHE-CONTROL"];
string location = header["LOCATION"];
string server = header["SERVER"];
// NT is not evaluated, we get all information from the USN header
//string nt = header["NT"];
string nts = header["NTS"];
string usn = header["USN"];
string bi = header["BOOTID.UPNP.ORG"];
string ci = header["CONFIGID.UPNP.ORG"];
string sp = header["SEARCHPORT.UPNP.ORG"];
HandleNotifyPacket(config, remoteEndPoint, httpVersion, DateTime.Now.ToUniversalTime().ToString("R"), cacheControl, location, server, nts, usn, bi, ci, sp);
}
protected void HandleSSDPResponse(SimpleHTTPResponse header, EndpointConfiguration config, IPEndPoint remoteEndPoint)
{
HTTPVersion httpVersion;
if (!HTTPVersion.TryParse(header.HttpVersion, out httpVersion))
{
// Invalid response
return;
}
string cacheControl = header["CACHE-CONTROL"];
string date = header["DATE"];
// EXT is not used
//string ext = header["EXT"];
string location = header["LOCATION"];
string server = header["SERVER"];
// ST is not used
//string st = header["ST"];
string usn = header["USN"];
string bi = header["BOOTID.UPNP.ORG"];
string ci = header["CONFIGID.UPNP.ORG"];
string sp = header["SEARCHPORT.UPNP.ORG"];
HandleNotifyPacket(config, remoteEndPoint, httpVersion, date, cacheControl, location, server, "ssdp:alive", usn, bi, ci, sp);
}
protected void HandleUpdatePacket(SimpleHTTPRequest header, EndpointConfiguration config)
{
if (header.Param != "*")
{
// Invalid message
return;
}
HTTPVersion httpVersion;
if (!HTTPVersion.TryParse(header.HttpVersion, out httpVersion))
{
// Invalid message
return;
}
// Host, NT, NTS, USN are not interesting
//string host = header["HOST"];
//string nt = header["NT"];
//string nts = header["NTS"];
string usn = header["USN"];
//string location = header["LOCATION"];
string bi = header["BOOTID.UPNP.ORG"];
uint bootID;
if (!uint.TryParse(bi, out bootID))
{
// Invalid message
return;
}
string nbi = header["NEXTBOOTID.UPNP.ORG"];
uint nextBootID;
if (!uint.TryParse(nbi, out nextBootID))
{
// Invalid message
return;
}
if (!usn.StartsWith("uuid:"))
{
// Invalid usn
return;
}
int separatorIndex = usn.IndexOf("::");
if (separatorIndex < 6) // separatorIndex == -1 or separatorIndex not after "uuid:" prefix with at least one char UUID
// We only use messages containing a "::" substring and discard the "uuid:device-UUID" message
{
return;
}
string deviceUUID = usn.Substring(5, separatorIndex - 5);
RootEntry rootEntry = GetRootEntryByContainedDeviceUUID(deviceUUID);
if (rootEntry == null)
{
return;
}
if (rootEntry.BootID > bootID)
{
// Invalid message
return;
}
bool fireDeviceRebooted = false;
lock (_cpData.SyncObj)
{
if (rootEntry.BootID < bootID)
{
// Device reboot
fireDeviceRebooted = true;
}
rootEntry.BootID = nextBootID;
}
if (fireDeviceRebooted)
{
InvokeDeviceRebooted(rootEntry, false);
}
}
