author | Myhailo Danylenko <isbear@ukrpost.net> |
Wed, 11 Nov 2009 17:05:05 +0200 | |
changeset 6 | f579d9637195 |
parent 4 | b24eab8a6515 |
child 8 | b98346c5040d |
permissions | -rw-r--r-- |
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/* |
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* pep.c -- Common pep routines |
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* |
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* Copyrigth (C) 2009 Myhailo Danylenko <isbear@ukrpost.net> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 |
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* USA |
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*/ |
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#include <glib.h> |
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#include <gmodule.h> |
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#include <loudmouth/loudmouth.h> |
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#include <string.h> |
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#include "xmpp.h" |
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#include "hooks.h" |
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#include "pep.h" |
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static GSList *pep_xmlns_handlers = NULL; |
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static LmMessageHandler *pep_message_handler = NULL; |
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static LmMessageHandler *pep_iq_handler = NULL; |
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static pep_handler_t *pep_find_handler (const gchar *xmlns) |
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{ |
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GSList *hel; |
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for (hel = pep_xmlns_handlers; hel; hel = hel->next) { |
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pep_handler_t *handler = (pep_handler_t *) hel->data; |
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if (!strcmp (handler->xmlns, xmlns)) |
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return handler; |
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} |
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return NULL; |
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} |
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static LmHandlerResult pep_handler (const gchar *from, LmMessageNode *mnode) |
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{ |
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LmMessageNode *node = lm_message_node_get_child (mnode, "items"); |
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if (node) { |
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LmMessageNode *item; |
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const gchar *inode = lm_message_node_get_attribute (node, "node"); |
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for (item = node->children; item; item = item->next) { |
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const gchar *id = lm_message_node_get_attribute (item, "id"); |
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LmMessageNode *n; |
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for (n = item->children; n; n = n->next) { |
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const gchar *xmlns = lm_message_node_get_attribute (n, "xmlns"); |
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if (xmlns) { |
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pep_handler_t *handler = pep_find_handler (xmlns); |
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if (handler) |
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handler->handler (from, inode, n, id, handler->data); |
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} |
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} |
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} |
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} // XXX else |
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return LM_HANDLER_RESULT_REMOVE_MESSAGE; |
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} |
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static LmHandlerResult pep_iq_pubsub_handler (LmMessageHandler *handler, LmConnection *connectio, LmMessage *message, gpointer udata) |
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{ |
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LmMessageNode *node = lm_message_get_node (message); |
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const gchar *from = lm_message_node_get_attribute (node, "from"); |
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node = lm_message_node_get_child (node, "pubsub"); |
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if (node) { |
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const gchar *xmlns = lm_message_node_get_attribute (node, "xmlns"); |
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if (!strcmp (xmlns, NS_PUBSUB)) |
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return pep_handler (from, node); |
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} |
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return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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} |
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static LmHandlerResult pep_message_event_handler (LmMessageHandler *handler, LmConnection *connectio, LmMessage *message, gpointer udata) |
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{ |
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LmMessageNode *node = lm_message_get_node (message); |
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const gchar *from = lm_message_node_get_attribute (node, "from"); |
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node = lm_message_node_get_child (node, "event"); |
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if (node) { |
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const gchar *xmlns = lm_message_node_get_attribute (node, "xmlns"); |
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if (!strcmp (xmlns, NS_PUBSUB_EVENT)) |
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return pep_handler (from, node); |
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} |
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return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS; |
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} |
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void pep_register_xmlns_handler (const gchar *xmlns, void (*handler) (const gchar *from, const gchar *node, LmMessageNode *n, const gchar *id, gpointer udata), gpointer udata, void (*data_destroy) (pep_handler_t *handler)) |
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{ |
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pep_handler_t *h = g_new (pep_handler_t, 1); |
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h->xmlns = g_strdup (xmlns); |
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h->handler = handler; |
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h->data = udata; |
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h->data_destroy = data_destroy; |
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pep_xmlns_handlers = g_slist_append (pep_xmlns_handlers, h); |
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} |
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void pep_unregister_xmlns_handler (const gchar *xmlns) |
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{ |
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pep_handler_t *handler = pep_find_handler (xmlns); |
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if (handler) { |
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pep_xmlns_handlers = g_slist_remove (pep_xmlns_handlers, handler); |
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if (handler->data_destroy) |
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handler->data_destroy (handler); |
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g_free (handler->xmlns); |
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g_free (handler); |
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} |
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} |
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static void pep_register_handlers (void) |
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{ |
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if (lconnection) { // XXX |
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lm_connection_register_message_handler (lconnection, pep_message_handler, LM_MESSAGE_TYPE_MESSAGE, LM_HANDLER_PRIORITY_FIRST); |
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lm_connection_register_message_handler (lconnection, pep_iq_handler, LM_MESSAGE_TYPE_IQ, LM_HANDLER_PRIORITY_FIRST); |
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} |
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} |
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static void pep_unregister_handlers (void) |
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{ |
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if (lconnection) { // XXX |
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lm_connection_unregister_message_handler (lconnection, pep_message_handler, LM_MESSAGE_TYPE_MESSAGE); |
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lm_connection_unregister_message_handler (lconnection, pep_iq_handler, LM_MESSAGE_TYPE_IQ); |
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} |
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} |
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// release handlers before reconnect |
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static void pep_hh (guint32 hid, hk_arg_t *args, gpointer userdata) |
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{ |
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hk_arg_t *arg = args; |
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for (arg = args; arg->name; ++arg) { |
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if (!strcmp (arg->name, "hook")) { |
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if (!strcmp (arg->value, "hook-pre-disconnect")) |
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pep_unregister_handlers (); |
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else if (!strcmp (arg->value, "hook-post-connect")) |
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pep_register_handlers (); |
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return; |
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} |
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} |
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} |
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const gchar *g_module_check_init (GModule *module) |
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{ |
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// create handlers |
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pep_message_handler = lm_message_handler_new (pep_message_event_handler, NULL, NULL); |
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pep_iq_handler = lm_message_handler_new (pep_iq_pubsub_handler, NULL, NULL); |
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// register hook handler |
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hk_add_handler (pep_hh, HOOK_INTERNAL, NULL); |
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// register handlers to connection |
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pep_register_handlers (); |
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return NULL; |
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} |
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void g_module_unload (GModule *module) |
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// release handlers |
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pep_unregister_handlers (); |
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// remove hook |
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hk_del_handler (pep_hh, NULL); |
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// destroy handlers (invalidate it just to be sure, though this should not happen :) |
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lm_message_handler_invalidate (pep_message_handler); |
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lm_message_handler_invalidate (pep_iq_handler); |
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lm_message_handler_unref (pep_message_handler); |
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lm_message_handler_unref (pep_iq_handler); |
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} |
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/* vim: se ts=4 sw=4: */ |