diff -r 4e6245ccd73c -r 77966ed56e14 jingle/jingle.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jingle/jingle.c	Sun Jun 06 23:19:47 2010 +0200
@@ -0,0 +1,246 @@
+/*
+ * jingle.c
+ *
+ * Copyrigth (C) 2010 Nicolas Cornu <nicolas.cornu@ensi-bourges.fr>
+ *
+ * This program 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 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include <glib.h>
+#include <loudmouth/loudmouth.h>
+
+#include <mcabber/xmpp.h>
+#include <mcabber/hooks.h>
+#include <mcabber/modules.h>
+#include <mcabber/logprint.h>
+#include <mcabber/xmpp_helper.h>
+#include <mcabber/xmpp_defines.h> 
+
+#include "jingle.h"
+#include "check.h"
+#include "register.h"
+
+
+static void  jingle_register_lm_handlers(void);
+static void  jingle_unregister_lm_handlers(void);
+static guint jingle_connect_hh(const gchar *hname, hk_arg_t *args, gpointer ignore);
+static guint jingle_disconn_hh(const gchar *hname, hk_arg_t *args, gpointer ignore);
+static void  jingle_init(void);
+static void  jingle_uninit(void);
+
+
+static LmMessageHandler* jingle_iq_handler = NULL;
+static guint connect_hid = 0;
+static guint disconn_hid = 0;
+
+/**
+ * Must be aligned with the values in JingleAction
+ * for easy acces.
+ */
+struct JingleActionList jingle_action_list[] = {
+  { NULL,                NULL }, // for JINGLE_UNKNOWN_ACTION
+  { "content-accept",    NULL },
+  { "content-add",       NULL },
+  { "content-modify",    NULL },
+  { "content-reject",    NULL },
+  { "content-remove",    NULL },
+  { "description-info",  NULL },
+  { "security-info",     NULL },
+  { "session-accept",    NULL },
+  { "session-info",      NULL },
+  { "session-initiate",  NULL },
+  { "session-terminate", NULL },
+  { "transport-accept",  NULL },
+  { "transport-info",    NULL },
+  { "transport-reject",  NULL },
+  { "transport-replace", NULL },
+};
+
+module_info_t info_jingle = {
+  .branch          = MCABBER_BRANCH,
+  .api             = MCABBER_API_VERSION,
+  .version         = MCABBER_VERSION,
+  .description     = "Main Jingle module,"
+                     " required for file transport, voip...\n",
+  .requires        = NULL,
+  .init            = jingle_init,
+  .uninit          = jingle_uninit,
+  .next            = NULL,
+};
+
+
+LmHandlerResult jingle_handle_iq(LmMessageHandler *handler,
+                                 LmConnection *connection,
+                                 LmMessage *message,
+                                 gpointer user_data)
+{
+  LmMessageSubType iqtype = lm_message_get_sub_type(message);
+  if (iqtype != LM_MESSAGE_SUB_TYPE_SET)
+    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
+
+  JingleNode *jn = g_new0(JingleNode, 1);
+  GError *error;
+  LmMessageNode *root = lm_message_get_node(message)->children;
+  LmMessageNode *node = lm_message_node_get_child(root, "jingle");
+
+  if (!node) // no <jingle> element found
+    return LM_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
+
+  if (g_strcmp0(lm_message_node_get_attribute(node, "xmlns"), NS_JINGLE)) {
+    scr_log_print(LPRINT_DEBUG, "jingle: Received a jingle IQ with an invalid namespace");
+    return LM_HANDLER_RESULT_REMOVE_MESSAGE;
+  }
+
+  check_jingle(node, jn, &error);
+  if (error != NULL) {
+    if (error->code == JINGLE_CHECK_ERROR) {
+      // request malformed, we reply with a bad-request
+      jingle_send_iq_error(message, "cancel", "bad-request", NULL);
+    }
+    return LM_HANDLER_RESULT_REMOVE_MESSAGE;
+  }
+  
+  scr_log_print(LPRINT_DEBUG, "jingle: Received a valid jingle IQ");
+  
+  if (jingle_action_list[jn->action].handler != NULL)
+    jingle_action_list[jn->action].handler(message, jn, &error);
+  else
+    jingle_send_iq_error(message, "cancel", "feature-not-implemented",
+                         "unsupported-info");
+
+  return LM_HANDLER_RESULT_REMOVE_MESSAGE;
+}
+
+/**
+ * According to the specifications:
+ * "An entity that receives an IQ request of type "get" or "set" MUST
+ * reply with an IQ response of type "result" or "error"."
+ * For Jingle's IQ, we have to reply with an empty "result" IQ to acknowledge
+ * receipt.
+ */
+void jingle_ack_iq(LmMessage *m)
+{
+  LmMessage *r;
+
+  r = lm_message_new_iq_from_query(m, LM_MESSAGE_SUB_TYPE_RESULT);
+  lm_connection_send(lconnection, r, NULL);
+  lm_message_unref(r);
+}
+
+/**
+ * Reply to a Jingle IQ with an error.
+ */
+LmMessage *jingle_new_iq_error(LmMessage *m, const gchar *errtype,
+                               const gchar *cond, const gchar *jinglecond)
+{
+  LmMessage *r;
+  LmMessageNode *err, *tmpnode;
+
+  r = lm_message_new_iq_from_query(m, LM_MESSAGE_SUB_TYPE_ERROR);
+  err = lm_message_node_add_child(r->node, "error", NULL);
+  lm_message_node_set_attribute(err, "type", errtype);
+
+  // error condition as defined by RFC 3920bis section 8.3.3
+  if (cond != NULL) {
+    tmpnode = lm_message_node_add_child(err, cond, NULL);
+    lm_message_node_set_attribute(tmpnode, "xmlns", NS_XMPP_STANZAS);
+  }
+
+  // jingle error condition as defined by XEP-0166 section 10
+  if (jinglecond != NULL) {
+    tmpnode = lm_message_node_add_child(err, jinglecond, NULL);
+    lm_message_node_set_attribute(tmpnode, "xmlns", NS_JINGLE_ERRORS);
+  }
+
+  return r;
+}
+
+void jingle_send_iq_error(LmMessage *m, const gchar *errtype,
+                          const gchar *cond, const gchar *jinglecond)
+{
+  LmMessage *r = jingle_new_iq_error(m, errtype, cond, jinglecond);
+  if (r) {
+	  lm_connection_send(lconnection, r, NULL);
+	  lm_message_unref(r);
+  }
+}
+
+/**
+ * Find the jingle_action corresponding to a string
+ */
+JingleAction jingle_action_from_str(const gchar* string)
+{
+  guint i, actstrlen = sizeof(jingle_action_list)/sizeof(jingle_action_list[0]);
+  for (i = 0; i < actstrlen; i++)
+    if (!g_strcmp0(jingle_action_list[i].name, string))
+      return (JingleAction) i;
+
+  return JINGLE_UNKNOWN_ACTION;
+}
+
+static void jingle_unregister_lm_handlers(void)
+{
+  if (lconnection) {
+    lm_connection_unregister_message_handler(lconnection, jingle_iq_handler,
+        LM_MESSAGE_TYPE_IQ);
+  }
+}
+
+static void jingle_register_lm_handlers(void)
+{
+  jingle_unregister_lm_handlers();
+  if (lconnection) {
+    lm_connection_register_message_handler(lconnection, jingle_iq_handler,
+        LM_MESSAGE_TYPE_IQ,
+        LM_HANDLER_PRIORITY_FIRST);
+  }
+}
+
+static guint jingle_connect_hh(const gchar *hname, hk_arg_t *args, gpointer ignore)
+{
+  jingle_register_lm_handlers();
+  return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
+}
+
+static guint jingle_disconn_hh(const gchar *hname, hk_arg_t *args, gpointer ignore)
+{
+  jingle_unregister_lm_handlers();
+  return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;
+}
+
+static void jingle_init(void)
+{
+  jingle_iq_handler = lm_message_handler_new(jingle_handle_iq, NULL, NULL);
+  xmpp_add_feature(NS_JINGLE);
+
+  connect_hid = hk_add_handler(jingle_connect_hh, HOOK_POST_CONNECT,
+      G_PRIORITY_DEFAULT_IDLE, NULL);
+  disconn_hid = hk_add_handler(jingle_disconn_hh, HOOK_PRE_DISCONNECT,
+      G_PRIORITY_DEFAULT_IDLE, NULL);
+  jingle_register_lm_handlers();
+}
+
+static void jingle_uninit(void)
+{
+  xmpp_del_feature(NS_JINGLE);
+
+  hk_del_handler(HOOK_POST_CONNECT, connect_hid);
+  hk_del_handler(HOOK_PRE_DISCONNECT, disconn_hid);
+  jingle_unregister_lm_handlers();
+
+  lm_message_handler_invalidate(jingle_iq_handler);
+  lm_message_handler_unref(jingle_iq_handler);
+}