chipping away at c cruft

connection.cpp

@@ -1254,7 +1254,7 @@ void connection__handler(xmpp_conn_t *conn, xmpp_conn_event_t status,
     {
         account->disconnected = 0;
 
-        xmpp_stanza_t *pres, *pres__c, *pres__status, *pres__status__text,
+        xmpp_stanza_t *pres__c, *pres__status, *pres__status__text,
             *pres__x, *pres__x__text, **children;
 
         xmpp_handler_add(conn, &connection__version_handler,
@@ -1315,22 +1315,19 @@ void connection__handler(xmpp_conn_t *conn, xmpp_conn_event_t status,
             children[3] = NULL;
         }
 
-        pres = stanza__presence(account->context, NULL,
-                                children, NULL, strdup(account_jid(account)),
-                                NULL, NULL);
-        xmpp_send(conn, pres);
-        xmpp_stanza_release(pres);
-
-        children[1] = NULL;
-        children[0] =
-            stanza__iq_enable(account->context, NULL, with_noop("urn:xmpp:carbons:2"));
-        children[0] =
-            stanza__iq(account->context, NULL, children,
-                       strdup("jabber:client"), strdup("enable1"),
-                       strdup(account_jid(account)), NULL, strdup("set"));
+        xmpp_send(conn, stanza::presence()
+                    .from(account_jid(account))
+                    .build(account->context)
+                    .get());
 
-        xmpp_send(conn, children[0]);
-        xmpp_stanza_release(children[0]);
+        xmpp_send(conn, stanza::iq()
+                    .from(account_jid(account))
+                    .type("set")
+                    .id(stanza::uuid(account->context))
+                    .xep0280()
+                    .enable()
+                    .build(account->context)
+                    .get());
 
         children[1] = NULL;
         children[0] =

xmpp/node.hh

@@ -166,6 +166,7 @@ namespace stanza {
 #include "xep-0030.inl"
 #include "xep-0045.inl"
 #include "xep-0115.inl"
+#include "xep-0280.inl"
 #include "xep-0319.inl"
 
 namespace stanza {
@@ -190,10 +191,16 @@ namespace stanza {
 
     struct presence : virtual public spec {
         presence() : spec("presence") {}
+
+        presence& id(std::string_view s) { attr("id", s); return *this; }
+        presence& from(std::string_view s) { attr("from", s); return *this; }
+        presence& to(std::string_view s) { attr("to", s); return *this; }
+        presence& lang(std::string_view s) { attr("lang", s); return *this; }
     };
 
     struct iq : virtual public spec,
-                public xep0030::iq {
+                public xep0030::iq,
+                public xep0280::iq {
         iq() : spec("iq") {}
 
         iq& id(std::string_view s) { attr("id", s); return *this; }

xmpp/xep-0030.inl

@@ -25,6 +25,8 @@ namespace stanza {
         struct iq : virtual public spec {
             iq() : spec("iq") {}
 
+            iq& xep0030() { return *this; }
+
             iq& query(query q = xep0030::query()) { child(q); return *this; }
         };
     };

xmpp/xep-0280.inl

@@ -0,0 +1,34 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, version 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#pragma once
+
+#include <optional>
+#include <string>
+
+#include "node.hh"
+#pragma GCC visibility push(default)
+#include "ns.hh"
+#pragma GCC visibility pop
+
+namespace stanza {
+
+    /* Message Carbons */
+    struct xep0280 {
+        struct enable : virtual public spec {
+            enable() : spec("enable") {
+                xmlns<urn::xmpp::carbons::_2>();
+            }
+        };
+
+        struct iq : virtual public spec {
+            iq() : spec("iq") {}
+
+            iq& xep0280() { xmlns<jabber::client>(); return *this; }
+
+            iq& enable(enable e = xep0280::enable()) { child(e); return *this; }
+        };
+    };
+
+}