1 /*

     2  *  Module "show_mdr"       -- Show Message Delivery Receipts

     3  *

     4  *  This module displays the message "delivery receipts" (XEP 184)

     5  *  received from contacts to the log window.

     6  *

     7  * Copyright (C) 2013,2014 Mikael Berthe <mikael@lilotux.net>

     8  *

     9  * This module is free software; you can redistribute it and/or modify

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

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

    12  * your option) any later version.

    13  *

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

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

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

    17  * General Public License for more details.

    18  *

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

    20  * along with this program.  If not, see <http://www.gnu.org/licenses/>.

    21  */

    22 

    23 #include <stdio.h>

    24 #include <stdlib.h>

    25 #include <mcabber/modules.h>

    26 #include <mcabber/logprint.h>

    27 #include <mcabber/hooks.h>

    28 #include <mcabber/roster.h>

    29 #include <mcabber/utils.h>

    30 

    31 static void show_mdr_init(void);

    32 static void show_mdr_uninit(void);

    33 

    34 /* Module description */

    35 module_info_t info_show_mdr = {

    36   /*

    37         .branch         = MCABBER_BRANCH,

    38         .api            = MCABBER_API_VERSION,

    39   */

    40         .branch         = "dev",

    41         .api            = 33,     // HOOK_MDR_RECEIVED was included in dev-33

    42         .version        = "0.01",

    43         .description    = "Show delivery receipts in the log window.",

    44         .requires       = NULL,

    45         .init           = show_mdr_init,

    46         .uninit         = show_mdr_uninit,

    47         .next           = NULL,

    48 };

    49 

    50 // Hook handler id

    51 static guint mdr_hid;

    52 

    53 static int number_of_resources(const char *fjid)

    54 {

    55   GSList *sl_user;

    56   gpointer bud;

    57   GSList *resources, *p_res;

    58   char *bjid;

    59   int n = 0;

    60 

    61   if (!fjid) return -1;

    62 

    63   bjid = jidtodisp(fjid);

    64   sl_user = roster_find(bjid, jidsearch, ROSTER_TYPE_USER);

    65   g_free(bjid);

    66 

    67   if (!sl_user) return -1;

    68 

    69   bud = sl_user->data;

    70   resources = buddy_getresources(bud);

    71 

    72   for (p_res = resources ; p_res ; p_res = g_slist_next(p_res))

    73     n++;

    74 

    75   return n;

    76 }

    77 

    78 // Event handler for delivery receipts events

    79 static guint mdr_hh(const gchar *hookname, hk_arg_t *args,

    80                     gpointer userdata)

    81 {

    82   for ( ; args->name; args++) {

    83     if (!g_strcmp0(args->name, "jid")) {

    84       int nres;

    85       // Note: we could use a whitelist...

    86 

    87       scr_log_print(LPRINT_DEBUG, "Received MDR from %s", args->value);

    88 

    89       /* What we do: we check the number N of resources from the contact and

    90          display the MDR sender only if N > 1

    91        */

    92       nres = number_of_resources(args->value);

    93       if (nres > 1)

    94         scr_log_print(LPRINT_NORMAL, "Received MDR from %s", args->value);

    95     }

    96   }

    97 

    98   return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

    99 }

   100 

   101 // Initialization

   102 static void show_mdr_init(void)

   103 {

   104   // Add hook handler for delivery receipts

   105   mdr_hid = hk_add_handler(mdr_hh, HOOK_MDR_RECEIVED,

   106                            G_PRIORITY_DEFAULT_IDLE, NULL);

   107 }

   108 

   109 // Uninitialization

   110 static void show_mdr_uninit(void)

   111 {

   112   // Unregister handler

   113   hk_del_handler(HOOK_MDR_RECEIVED, mdr_hid);

   114 }

   115 

   116 /* vim: set et cindent cinoptions=>2\:2(0 ts=2 sw=2:  For Vim users... */