core (memory/disco): getInfos now handle node + use client instead of profile in many methods

src/plugins/plugin_xep_0115.py

@@ -66,7 +66,7 @@ class XEP_0115(object):
         client.caps_optimize = None
 
         if XEP_0115.cap_hash is None:
-            disco_d.addCallback(lambda dummy: self.host.hasFeature(NS_CAPS_OPTIMIZE, profile=profile))
+            disco_d.addCallback(lambda dummy: self.host.hasFeature(client, NS_CAPS_OPTIMIZE))
             def updateOptimize(optimize):
                 client.caps_optimize = optimize
                 if optimize:
@@ -163,6 +163,6 @@ class XEP_0115_handler(XMPPHandler):
             msg = failure.value.condition if hasattr(failure.value, 'condition') else failure.getErrorMessage()
             log.error(_(u"Couldn't retrieve disco info for {jid}: {error}").format(jid=from_jid.full(), error=msg))
 
-        d = self.host.getDiscoInfos(from_jid, self.profile)
+        d = self.host.getDiscoInfos(self.parent, from_jid)
         d.addCallbacks(cb, eb)
         # TODO: me must manage the full algorithm described at XEP-0115 #5.4 part 3