1 /*

     2  *  Module "ignore_auth" -- ignore subscription requests

     3  *

     4  * Copyright 2010 Frank Zschockelt <mcabber@freakysoft.de>

     5  *

     6  * This module 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, see <http://www.gnu.org/licenses/>.

    18  */

    19 #include <string.h>

    20 

    21 #include <mcabber/commands.h>

    22 #include <mcabber/hooks.h>

    23 #include <mcabber/modules.h>

    24 #include <mcabber/screen.h>

    25 #include <mcabber/settings.h>

    26 #include <mcabber/xmpp.h>

    27 

    28 static void ignore_auth_init   (void);

    29 static void ignore_auth_uninit (void);

    30 

    31 /* Module description */

    32 module_info_t info_ignore_auth = {

    33         .branch          = MCABBER_BRANCH,

    34         .api             = MCABBER_API_VERSION,

    35         .version         = MCABBER_VERSION,

    36         .description     = "ignore auth requests by specifying a jid regex",

    37         .requires        = NULL,

    38         .init            = ignore_auth_init,

    39         .uninit          = ignore_auth_uninit,

    40         .next            = NULL,

    41 };

    42 

    43 GSList *regexlist = NULL;

    44 static guint ignore_auth_hid = 0;  /* Hook handler id */

    45 

    46 static guint ignore_hh(const gchar *hookname, hk_arg_t *args, gpointer userdata)

    47 {

    48   guint subscription;

    49   const char *bjid = NULL, *type = NULL, *msg = NULL;

    50 

    51   if (settings_opt_get_int("ignore_auth")) {

    52     int i;

    53     for (i = 0; args[i].name; i++) {

    54       if (!strcmp(args[i].name, "type"))

    55         type = args[i].value;

    56       if (!strcmp(args[i].name, "message"))

    57         msg = args[i].value;

    58       if (!strcmp(args[i].name, "jid"))

    59         bjid = args[i].value;

    60     }

    61     /* shouldn't happen */

    62     if (!bjid || !type || !msg)

    63       return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

    64 

    65     subscription = roster_getsubscription(bjid);

    66     /* only ignore subscription requests when no subscription exists */

    67     if ((subscription == sub_none) && (!strcmp(type, "subscribe"))) {

    68       GSList *head;

    69       int ignore_it = FALSE;

    70 

    71       /* try to match against one of our regular expressions */

    72       for (head = regexlist; head && !ignore_it; head = g_slist_next(head)) {

    73         GMatchInfo *match_info;

    74         g_regex_match(head->data, bjid, 0, &match_info);

    75         if (g_match_info_matches(match_info))

    76           ignore_it = TRUE;

    77         g_match_info_free (match_info);

    78       }

    79       if(ignore_it) {

    80         xmpp_send_s10n(bjid, LM_MESSAGE_SUB_TYPE_UNSUBSCRIBED);

    81         scr_log_print(LPRINT_NORMAL, "Ignored auth request from %s (%s)",

    82                       bjid, msg);

    83         return HOOK_HANDLER_RESULT_NO_MORE_HANDLER_DROP_DATA;

    84       }

    85     }

    86   }

    87   /* we're done, let the other handlers do their job! */

    88   return HOOK_HANDLER_RESULT_ALLOW_MORE_HANDLERS;

    89 }

    90 

    91 /* ignore command handler */

    92 static void do_ignore_auth(char *args)

    93 {

    94   GRegex *new_regex;

    95   if (!args || !*args) {

    96     GSList *head;

    97     for (head = regexlist; head; head = g_slist_next(head))

    98       scr_log_print(LPRINT_NORMAL, "Ignoring %s",

    99                     g_regex_get_pattern(head->data));

   100     return;

   101   }

   102   new_regex = g_regex_new(args, G_REGEX_OPTIMIZE, 0, NULL);

   103   if (!new_regex) {

   104     scr_log_print(LPRINT_NORMAL, "That wasn't a glib regex");

   105     return;

   106   }

   107   regexlist = g_slist_append(regexlist, new_regex);

   108 }

   109 

   110 /* Initialization */

   111 static void ignore_auth_init(void)

   112 {

   113   /* Add command */

   114   cmd_add("ignore_auth", "", 0, 0, do_ignore_auth, NULL);

   115   /* Add handler */

   116   ignore_auth_hid = hk_add_handler(ignore_hh, HOOK_SUBSCRIPTION,

   117                                    G_PRIORITY_DEFAULT_IDLE, NULL);

   118   settings_set(SETTINGS_TYPE_OPTION, "ignore_auth", "1");

   119 }

   120 

   121 /* Uninitialization */

   122 static void ignore_auth_uninit(void)

   123 {

   124   GSList *head;

   125   /* Unregister command */

   126   cmd_del("ignore_auth");

   127   /* Unregister event handler */

   128   hk_del_handler(HOOK_SUBSCRIPTION, ignore_auth_hid);

   129   /* unref every regex */

   130   for (head = regexlist; head; head = g_slist_next(head))

   131     g_regex_unref(head->data);

   132   g_slist_free(regexlist);

   133   regexlist = NULL;

   134 }

   135 

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