1 /*

     2  * check.c

     3  *

     4  * Copyrigth (C) 2010 Nicolas Cornu <nicolas.cornu@ensi-bourges.fr>

     5  *

     6  * This program is free software; you can redistribute it and/or modify

     7  * it under the terms of the GNU General Public License as published by

     8  * the Free Software Foundation; either version 2 of the License, or (at

     9  * your option) any later version.

    10  *

    11  * This program is distributed in the hope that it will be useful, but

    12  * WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    14  * General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU General Public License

    17  * along with this program; if not, write to the Free Software

    18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

    19  * USA

    20  */

    21 

    22 #include <glib.h>

    23 #include <loudmouth/loudmouth.h>

    24 

    25 #include "check.h"

    26 #include "jingle.h"

    27 

    28 

    29 const gchar *jingle_content_creator[] = {

    30   "initiator",

    31   "responder",

    32   NULL

    33 };

    34 

    35 const gchar *jingle_content_senders[] = {

    36   "both",

    37   "initiator",

    38   "none",

    39   "responder",

    40   NULL

    41 };

    42 

    43 

    44 /**

    45  * Populate a jingle_data struct from a <jingle> element.

    46  * Check if the element is in compliance with the XEP.

    47  */

    48 gboolean check_jingle(LmMessageNode *node, JingleData *jd, GError **err)

    49 {

    50   gint nb_reason = 0;

    51   LmMessageNode *child = NULL;

    52   const gchar *actionstr;

    53 

    54   actionstr     = lm_message_node_get_attribute(node, "action");

    55   jd->initiator = lm_message_node_get_attribute(node, "initiator");

    56   jd->responder = lm_message_node_get_attribute(node, "responder");

    57   jd->sid       = lm_message_node_get_attribute(node, "sid");

    58 

    59   if (actionstr == NULL || jd->sid == NULL) {

    60     g_set_error(err, JINGLE_CHECK_ERROR, JINGLE_CHECK_ERROR_MISSING,

    61                 "an attribute of the jingle element is missing");

    62     return FALSE;

    63   }

    64 

    65   jd->action = jingle_action_from_str(actionstr);

    66   if (jd->action == JINGLE_UNKNOWN_ACTION) {

    67     g_set_error(err, JINGLE_CHECK_ERROR, JINGLE_CHECK_ERROR_BADVALUE,

    68                 "the action attribute is invalid");

    69     return FALSE;

    70   }

    71 

    72   // check childs

    73   for (child = node->children; child; child = child->next) {

    74     if (!g_strcmp0(child->name, "reason"))

    75       nb_reason++;

    76   }

    77 

    78   if (nb_reason > 1) {

    79     g_set_error(err, JINGLE_CHECK_ERROR, JINGLE_CHECK_ERROR_BADELEM,

    80                 "too many reason elements");

    81     return FALSE;

    82   }

    83 

    84   return TRUE;

    85 }

    86 

    87 GQuark jingle_check_error_quark()

    88 {

    89   return g_quark_from_string("JINGLE_CHECK_ERROR");

    90 }