public bool FindService(ActionName wanted, string envelope, string ident, out ServiceInfo si, out ActionInfo ai)
{
lock (stateLock) {
TimeCheck (DateTime.UtcNow);
var cand = new List<ServiceInfo> ();
foreach (var ssi in services.Values) {
if (ident != null && ident != ssi.Identity)
continue;
ActionInfo sai = ssi.LookupAction (wanted);
if (sai == null)
continue;
if (!auth.IsAuthorized (ssi, wanted))
continue;
if (!ssi.IsSignatureValid)
continue;
if (!ssi.Envelopes.Contains (envelope))
continue;
cand.Add (ssi);
}
si = null;
ai = null;
if (cand.Count == 0)
return false;
si = cand [new Random ().Next (cand.Count)];
ai = si.LookupAction (wanted);
return true;
}
}
public virtual void DoMain(string[] argv)
{
this.info = ScanServiceDescription (Assembly.GetCallingAssembly ());
wq = new WorkQueue (20);
srv = new SCAMPSOAServer (info.Certificate, OnMessage);
ann = new MulticastAnnouncer (info, srv.Bindings);
new ManualResetEvent (false).WaitOne ();
}
public bool IsAuthorized(ServiceInfo inf, ActionName act)
{
var cert = inf.Certificate;
if (cert == null)
return false;
Regex checker;
if (!compiledAuth.TryGetValue (CryptoUtils.Fingerprint (cert), out checker))
return false;
return checker.IsMatch (act.Sector + ':' + act.Namespace + '.' + act.Name);
}
public MulticastAnnouncer(ServiceInfo info, IDictionary<IPAddress, string> serviceAddresses)
{
this.info = info;
this.serviceAddresses = serviceAddresses;
foreach (var ip in SOAConfig.Config.BusDiscoveryAddresses) {
try {
var cl = new UdpClient (new IPEndPoint (ip, SOAConfig.Config.BusPort));
cl.JoinMulticastGroup (SOAConfig.Config.BusMulticastGroup, ip);
sockets [ip] = cl;
} catch (Exception ex) {
Logger.LogError ("Failed to create announce socket for {0}: {1}", ip, ex);
}
}
tmr = new Timer (SendAnnouncements);
Reset ();
}
/// <summary>
/// Receives a service blob into the store.
/// </summary>
/// <remarks>This should be called with the object lock held.</remarks>
/// <param name="blob">Signed, uncompressed service blob.</param>
protected void Insert(string blob)
{
// do we already have this exact blob?
if (services.ContainsKey (blob))
return;
ServiceInfo inf = null;
if (stash != null)
stash.TryGetValue (blob, out inf);
try {
if (inf == null)
inf = new ServiceInfo (blob);
} catch (Exception ex) {
Logger.LogInfo ("Failed to parse service blob {0}: {1}", blob, ex);
return;
}
if (checkedReplace) {
if (!inf.IsSignatureValid)
return;
string id = inf.DeduplicationKey;
ServiceInfo old;
if (servicesByID.TryGetValue (id, out old)) {
if (inf.Timestamp <= old.Timestamp) {
Logger.LogInfo ("Received new service blob for {0} with timestamp {1} but the newest seen timestamp is already {2}",
id, inf.Timestamp, old.Timestamp);
return;
}
servicesByID.Remove (id);
services.Remove (old.Source);
}
servicesByID [id] = inf;
}
services [blob] = inf;
}
static SOAClient GetConnection(ServiceInfo si)
{
lock (conn_lock) {
SOAClient cl;
if (!connections.TryGetValue (si.URI, out cl) || cl.Closed) {
Uri parsed = new Uri (si.URI);
switch (parsed.Scheme) {
case "scamp+tls":
cl = new SCAMPSOAClient (parsed, si.Certificate);
break;
default:
throw new RPCException ("general", "No connection handler available for scheme {0}", parsed.Scheme);
}
connections [si.URI] = cl;
}
return cl;
}
}
