scenes/App.gd

@@ -1,17 +1,6 @@
 extends Node
 
-var _connection
-
-func _service_discovery():
-    var iq := yield() as Xml.XmlElement
-    print(iq.as_string())
-
 func _ready():
-    _connection = $Connections.establish_new_connection("poto.cafe", "veclavtalica", "-")
-    if _connection == null:
-        push_error("Connection failed")
-
-    if _connection.push_iq(_connection.domain, "get",
-            "<query xmlns='http://jabber.org/protocol/disco#items'/>",
-            _service_discovery()) != OK:
+    var connection = $Connections.establish_new_connection("poto.cafe", "veclavtalica", "-")
+    if connection == null:
         push_error("Connection failed")

scenes/Connections.gd

@@ -6,94 +6,15 @@ class Connection extends Reference:
     var domain: String
     var bare_jid: String
     var jid: String
-    var _id_counter: int = 0
-    var _pending_iqs: Dictionary # of id to GDScriptFunctionState
-    var _xml_parser := Xml.Parser.new()
-
-# warning-ignore:unused_signal
-    signal presence_received(presence)
-# warning-ignore:unused_signal
-    signal message_received(message)
-# warning-ignore:unused_signal
-    signal iq_received(iq)
+    var id_counter: int = 0
 
     func generate_id() -> int:
-        self._id_counter += 1
-        return hash(self._id_counter)
-
-    func push_iq(to: String, action: String, payload: String, capture: GDScriptFunctionState) -> int: # Error
-        assert(action in ["get", "set"])
-
-        var id := self.generate_id()
-        if self.stream.put_data(
-            """<iq from='{from}' id='{id}' to='{to}' type='{action}'>{payload}</iq>""".format({
-                "from": self.jid.xml_escape(),
-                "id": id,
-                "to": to.xml_escape(),
-                "action": action,
-                "payload": payload
-               }).to_utf8()) != OK:
-            return ERR_CONNECTION_ERROR
-
-        assert(not id in self._pending_iqs)
-        self._pending_iqs[id] = capture
-
-        return OK
-
-## Registry of connections used for poking of pending iqs.
-var _connections: Array # of WeakRef to Connection
-
-func _ready():
-    # todo: Some better interval?
-    if get_tree().connect("physics_frame", self, "_process_connections") != OK:
-        assert("Bruh")
-
-func _process_connections() -> void:
-    var to_remove := PoolIntArray()
-
-    for idx in range(_connections.size()):
-        var connection := _connections[idx].get_ref() as Connection
-        if connection == null:
-            to_remove.push_back(idx)
-            continue
-
-        var response = _wait_blocking_for_utf8_data(connection.stream, 0)
-        if response == null:
-            continue
-
-        if connection._xml_parser.parse_a_bit(response):
-            var stanza := connection._xml_parser.root
-            if stanza.node_name == "iq":
-                if "to" in stanza.attributes and stanza.attributes["to"] != connection.jid:
-                    push_error("Stanza is not addressed to assigned jid")
-
-                if stanza.attributes["type"] in ["result", "error"]:
-                    var id := int(stanza.attributes["id"]) # todo: Use strings directly instead?
-                    var result = connection._pending_iqs[id].resume(stanza)
-                    if result is GDScriptFunctionState:
-                        connection._pending_iqs[id] = result
-                    elif result != null:
-                        assert("Ignored result of iq subroutine: " + result)
-                    else:
-                        var was_present := connection._pending_iqs.erase(id)
-                        assert(was_present)
-
-                elif stanza.attributes["type"] in ["set", "get"]:
-                    connection.emit_signal("iq_received", stanza)
-
-            elif stanza.node_name == "message":
-                connection.emit_signal("message_received", stanza)
-
-            elif stanza.node_name == "presence":
-                connection.emit_signal("presence_received", stanza)
-
-            connection._xml_parser = Xml.Parser.new()
-
-    ## Collect dropped connections.
-    for idx in range(to_remove.size() - 1, 0, -1):
-        _connections.remove(to_remove[idx])
+        self.id_counter += 1
+        return hash(self.id_counter)
 
 func establish_new_connection(domain: String, identity: String, password: String) -> Connection:
+    ## XMPP uses unidirectional pipes for communication, which means
+    ## multiple connections are open over different predefined ports.
     var stream := StreamPeerTCP.new()
     if stream.connect_to_host(domain, 5222) != OK:
         push_error("Cannot establish client->server pipe to " + domain)
@@ -115,8 +36,6 @@ func establish_new_connection(domain: String, identity: String, password: String
     if _negotiate_connection(result, password) != OK:
         return null
 
-    _connections.push_back(weakref(result))
-
     return result
 
 # todo: Make it async
@@ -326,7 +245,7 @@ func _bind_resource(connection: Connection, resource: String = "tochie-facade")
         <resource>{resource}</resource>
     </bind></iq>""".format({
         "id": iq_id,
-        "resource": resource.xml_escape()
+        "resource": resource
     }).to_utf8()) != OK:
         return ERR_CONNECTION_ERROR
 

scenes/Xml.gd

@@ -19,7 +19,7 @@ class XmlElement extends XmlNode:
                 return child
         return null
 
-    func as_string(level: int = 0) -> String:
+    func as_string(level = 0) -> String:
         var result = '\t'.repeat(level) + "XmlElement \"%s\"" % self.node_name
         if self.attributes.size() > 0:
             result += ", Attributes: " + String(self.attributes)
@@ -32,12 +32,11 @@ class XmlText extends XmlNode:
 
     func is_text() -> bool: return true
 
-    func as_string(_level: int = 0) -> String:
+    func as_string(level = 0) -> String:
         return "XmlText \"%s\"" % self.data
 
 ## Wrapper over XMLParser for TCP stream oriented XML data.
 # todo: Save namespaces.
-# todo: Ability to parse from partially arrived data, with saving for future resume.
 class Parser extends Reference:
     var root: XmlElement = null
     var _element_stack: Array # of XmlElement
@@ -87,11 +86,7 @@ class Parser extends Reference:
                 text.data = parser.get_node_data()
                 self._element_stack[self._element_stack.size() - 1].children.push_back(text)
 
-            elif parser.get_node_type() == XMLParser.NODE_UNKNOWN:
-                ## Needed for things like <?xml ?> version specification.
-                pass
-
             else:
-                push_error("Node type unimplemented")
+                push_warning("Node type unimplemented and ignored")
 
         return self._element_stack.size() == 0