Mercurial > libervia-backend

changeset 7:c14a3a7018a5

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added dynamic exportation of Dbus bridge method (usefull for plugins)
author Goffi <goffi@goffi.org>
date Sat, 24 Oct 2009 01:05:17 +0200
parents 5799493fa548
children 4b05308d45f9
files plugins/plugin_xep_0096.py sat_bridge/DBus.py
diffstat 2 files changed, 67 insertions(+), 33 deletions(-) [+]
line wrap: on
line diff
--- a/plugins/plugin_xep_0096.py	Fri Oct 23 17:04:22 2009 +0200
+++ b/plugins/plugin_xep_0096.py	Sat Oct 24 01:05:17 2009 +0200
@@ -42,8 +42,7 @@
         self.host = host
         self._waiting_for_approval = {}
         host.add_IQ_cb("http://jabber.org/protocol/si", self.xep_96)
-        host.bridge.register("sendFile", self.sendFile)
-    
+        host.bridge.addMethod("sendFile", ".communication", in_sign='ss', out_sign='s', method=self.sendFile)
     
     def xep_96(self, IQ):
         info ("XEP-0096 management")
--- a/sat_bridge/DBus.py	Fri Oct 23 17:04:22 2009 +0200
+++ b/sat_bridge/DBus.py	Sat Oct 24 01:05:17 2009 +0200
@@ -27,6 +27,8 @@
 import pdb
 from logging import debug, info, error
 
+CONST_INT_PREFIX = "org.goffi.SAT"  #Interface prefix
+
 class DbusObject(dbus.service.Object):
 
     def __init__(self, bus, path):
@@ -39,32 +41,32 @@
 
     ### signals ###    
 
-    @dbus.service.signal("org.goffi.SAT.communication",
+    @dbus.service.signal(CONST_INT_PREFIX+".communication",
                          signature='sa{ss}as')
     def newContact(self, contact, attributes, groups):
         debug("new contact signal (%s) sended", contact)
 
-    @dbus.service.signal("org.goffi.SAT.communication",
+    @dbus.service.signal(CONST_INT_PREFIX+".communication",
                          signature='ssss')
     def newMessage(self, from_jid, msg, type='chat', to=''):
         debug("new message signal (from:%s msg:%s type:%s to:%s) sended", from_jid, msg, type, to)
      
-    @dbus.service.signal("org.goffi.SAT.communication",
+    @dbus.service.signal(CONST_INT_PREFIX+".communication",
                          signature='ssssi')
     def presenceUpdate(self, jid, type, show, status, priority):
         debug("presence update signal (from:%s type: %s show:%s status:\"%s\" priority:%d) sended" , jid, type, show, status, priority)
 
-    @dbus.service.signal("org.goffi.SAT.communication",
+    @dbus.service.signal(CONST_INT_PREFIX+".communication",
                          signature='sss')
     def paramUpdate(self, name, value, namespace):
         debug("param update signal: %s=%s in namespace %s", name, value, namespace)
 
-    @dbus.service.signal("org.goffi.SAT.communication",
+    @dbus.service.signal(CONST_INT_PREFIX+".communication",
                          signature='s')
     def contactDeleted(self, jid):
         debug("contact deleted signal: %s", jid)
     
-    @dbus.service.signal("org.goffi.SAT.request",
+    @dbus.service.signal(CONST_INT_PREFIX+".request",
                          signature='ssa{ss}')
     def askConfirmation(self, type, id, data):
         debug("asking for confirmation: id = [%s]  type = %s data = %s", id, type, data)
@@ -73,111 +75,138 @@
 
     ### methods ###    
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='')
     def connect(self):
         info ("Connection asked")
         return self.cb["connect"]()
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='')
     def disconnect(self):
         info ("Disconnection asked")
         return self.cb["disconnect"]()
     
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='a(sa{ss}as)')
     def getContacts(self):
         debug("getContacts...")
         return self.cb["getContacts"]()
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='a(ssssi)')
     def getPresenceStatus(self):
         debug("getPresenceStatus...")
         return self.cb["getPresenceStatus"]()
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='ss', out_signature='')
     def sendMessage(self, to, message):
         debug("sendMessage...")
         self.cb["sendMessage"](to, message)
 
-    @dbus.service.method("org.goffi.SAT.communication",
-                         in_signature='ss', out_signature='s')
-    def sendFile(self, to, path):
-        debug("sendFile...")
-        return self.cb["sendFile"](to, path)
-
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='ssssi', out_signature='')
     def setPresence(self, to="", type="", show="", status="", priority=0):
         self.cb["setPresence"](to, type, show, status, priority)
 
-
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='sss', out_signature='')
     def setParam(self, name, value, namespace="default"):
         self.cb["setParam"](name, str(value), namespace)
         
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='ss', out_signature='(ss)')
     def getParam(self, name, namespace="default"):
         return self.cb["getParam"](name, namespace)
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='s', out_signature='a(sss)')
     def getParams(self, namespace):
         return self.cb["getParams"](namespace)
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='as')
     def getParamsCategories(self):
         return self.cb["getParamsCategories"]()
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='ssi', out_signature='a{i(ss)}')
     def getHistory(self, from_jid, to_jid, size):
         debug("History asked for %s", to_jid)
         return self.cb["getHistory"](from_jid, to_jid, size)
     
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='s', out_signature='')
     def addContact(self, jid):
         debug("Subscription asked for %s", jid)
         return self.cb["addContact"](jid)
     
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='s', out_signature='')
     def delContact(self, jid):
         debug("Unsubscription asked for %s", jid)
         return self.cb["delContact"](jid)
 
-    @dbus.service.method("org.goffi.SAT.communication",
+    @dbus.service.method(CONST_INT_PREFIX+".communication",
                          in_signature='', out_signature='b')
     def isConnected(self):
         debug("Connection status requested")
         return self.cb["isConnected"]()
 
-    @dbus.service.method("org.goffi.SAT.request",
+    @dbus.service.method(CONST_INT_PREFIX+".request",
                          in_signature='sba{ss}', out_signature='')
     def confirmationAnswer(self, id, accepted, data):
         debug("Answer for confirmation [%s]: %s", id, "Accepted" if accepted else "Refused")
         return self.cb["confirmationAnswer"](id, accepted, data)
     
-    @dbus.service.method("org.goffi.SAT.request",
+    @dbus.service.method(CONST_INT_PREFIX+".request",
                          in_signature='s', out_signature='a{ss}')
     def getProgress(self, id):
         #debug("Progress asked for %s", id)
         return self.cb["getProgress"](id)
 
+    def _attribute_string(self, in_sign):
+        i=0
+        idx=0
+        attr_string=""
+        while i<len(in_sign):
+            if in_sign[i] not in ['b','y','n','i','x','q','u','t','d','s','a']:
+                raise Exception  #FIXME: create an exception here (unmanaged attribute type)
+
+            attr_string += ("" if idx==0 else ",") + ("arg_%i" % idx)
+            idx+=1
+
+            if in_sign[i] == 'a':
+                while (True):
+                    i+=1
+                    if i>=len(in_sign):
+                        raise Exception  #FIXME: create an exception here (the '}' is not presend)
+                    if in_sign[i] == '}':
+                        break
+            i+=1
+        return attr_string
+
+
+
+    def addMethod(self, name, int_suffix, in_sign, out_sign):
+        """Dynamically add a method to Dbus Bridge"""
+        #FIXME: Better way ???
+        attributes = self._attribute_string(in_sign)
+
+        code = compile ('def '+name+' (self,'+attributes+'): return self.cb["'+name+'"]('+attributes+')', '<DBus bridge>','exec')
+        exec (code)
+        method = locals()[name]
+        setattr(DbusObject, name, dbus.service.method(
+            CONST_INT_PREFIX+int_suffix, in_signature=in_sign, out_signature=out_sign)(method))
+
 class DBusBridge(Bridge):
     def __init__(self):
         dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
         Bridge.__init__(self)
         info ("Init DBus...")
         self.session_bus = dbus.SessionBus()
-        self.dbus_name = dbus.service.BusName("org.goffi.SAT", self.session_bus)
+        self.dbus_name = dbus.service.BusName(CONST_INT_PREFIX, self.session_bus)
         self.dbus_bridge = DbusObject(self.session_bus, '/org/goffi/SAT/bridge')
 
     def newContact(self, contact, attributes, groups):
@@ -203,6 +232,12 @@
         self.dbus_bridge.askConfirmation(type, id, data)
 
     def register(self, name, callback):
-        debug("enregistrement de %s",name)
+        debug("registering DBus bridge method [%s]",name)
         self.dbus_bridge.register(name, callback)
 
+    def addMethod(self, name, int_suffix, in_sign, out_sign, method):
+        """Dynamically add a method to Dbus Bridge"""
+        print ("Adding method [%s] to DBus bridge" % name)
+        self.dbus_bridge.addMethod(name, int_suffix, in_sign, out_sign)
+        self.register(name, method)
+