Added stanza module for basic stanza handling

To reduce duplication in jabber module

src/stanza.c

@@ -0,0 +1,43 @@
+/*
+ * stanza.c
+ *
+ * Copyright (C) 2012 James Booth <boothj5@gmail.com>
+ *
+ * This file is part of Profanity.
+ *
+ * Profanity is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Profanity is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Profanity.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <strophe.h>
+
+xmpp_stanza_t *
+stanza_create_chat_state(xmpp_ctx_t *ctx, const char * const recipient,
+    const char * const state)
+{
+    xmpp_stanza_t *message, *chat_state;
+
+    message = xmpp_stanza_new(ctx);
+    xmpp_stanza_set_name(message, "message");
+    xmpp_stanza_set_type(message, "chat");
+    xmpp_stanza_set_attribute(message, "to", recipient);
+
+    chat_state = xmpp_stanza_new(ctx);
+    xmpp_stanza_set_name(chat_state, state);
+    xmpp_stanza_set_ns(chat_state, "http://jabber.org/protocol/chatstates");
+    xmpp_stanza_add_child(message, chat_state);
+
+    return message;
+}
+