libpurple/protocols/bonjour/buddy.c

   1 /*
   2  *  This program is free software; you can redistribute it and/or modify
   3  *  it under the terms of the GNU General Public License as published by
   4  *  the Free Software Foundation; either version 2 of the License, or
   5  *  (at your option) any later version.
   6  *
   7  *  This program is distributed in the hope that it will be useful,
   8  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *  GNU Library General Public License for more details.
  11  *
  12  *  You should have received a copy of the GNU General Public License
  13  *  along with this program; if not, write to the Free Software
  14  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301, USA.
  15  */
  16
  17 #include <glib.h>
  18 #include <stdlib.h>
  19
  20 #include "internal.h"
  21 #include <purple.h>
  22
  23 #include "buddy.h"
  24 #include "bonjour.h"
  25 #include "mdns_interface.h"
  26
  27 /**
  28  * Creates a new buddy.
  29  */
  30 BonjourBuddy *
  31 bonjour_buddy_new(const gchar *name, PurpleAccount* account)
  32 {
  33         BonjourBuddy *buddy = g_new0(BonjourBuddy, 1);
  34
  35         buddy->account = account;
  36         buddy->name = g_strdup(name);
  37
  38         _mdns_init_buddy(buddy);
  39
  40         return buddy;
  41 }
  42
  43 void
  44 clear_bonjour_buddy_values(BonjourBuddy *buddy)
  45 {
  46         g_clear_pointer(&buddy->first, g_free);
  47         g_clear_pointer(&buddy->email, g_free);
  48         g_clear_pointer(&buddy->ext, g_free);
  49         g_clear_pointer(&buddy->jid, g_free);
  50         g_clear_pointer(&buddy->last, g_free);
  51         g_clear_pointer(&buddy->msg, g_free);
  52         g_clear_pointer(&buddy->nick, g_free);
  53         g_clear_pointer(&buddy->node, g_free);
  54         g_clear_pointer(&buddy->phsh, g_free);
  55         g_clear_pointer(&buddy->status, g_free);
  56         g_clear_pointer(&buddy->vc, g_free);
  57         g_clear_pointer(&buddy->ver, g_free);
  58         g_clear_pointer(&buddy->AIM, g_free);
  59 }
  60
  61 void
  62 set_bonjour_buddy_value(BonjourBuddy* buddy, const char *record_key, const char *value, guint32 len){
  63         gchar **fld = NULL;
  64
  65         g_return_if_fail(record_key != NULL);
  66
  67         if (purple_strequal(record_key, "1st"))
  68                 fld = &buddy->first;
  69         else if(purple_strequal(record_key, "email"))
  70                 fld = &buddy->email;
  71         else if(purple_strequal(record_key, "ext"))
  72                 fld = &buddy->ext;
  73         else if(purple_strequal(record_key, "jid"))
  74                 fld = &buddy->jid;
  75         else if(purple_strequal(record_key, "last"))
  76                 fld = &buddy->last;
  77         else if(purple_strequal(record_key, "msg"))
  78                 fld = &buddy->msg;
  79         else if(purple_strequal(record_key, "nick"))
  80                 fld = &buddy->nick;
  81         else if(purple_strequal(record_key, "node"))
  82                 fld = &buddy->node;
  83         else if(purple_strequal(record_key, "phsh"))
  84                 fld = &buddy->phsh;
  85         else if(purple_strequal(record_key, "status"))
  86                 fld = &buddy->status;
  87         else if(purple_strequal(record_key, "vc"))
  88                 fld = &buddy->vc;
  89         else if(purple_strequal(record_key, "ver"))
  90                 fld = &buddy->ver;
  91         else if(purple_strequal(record_key, "AIM"))
  92                 fld = &buddy->AIM;
  93
  94         if(fld == NULL)
  95                 return;
  96
  97         g_free(*fld);
  98         *fld = NULL;
  99         *fld = g_strndup(value, len);
 100 }
 101
 102 /**
 103  * Check if all the compulsory buddy data is present.
 104  */
 105 gboolean
 106 bonjour_buddy_check(BonjourBuddy *buddy)
 107 {
 108         if (buddy->account == NULL)
 109                 return FALSE;
 110
 111         if (buddy->name == NULL)
 112                 return FALSE;
 113
 114         return TRUE;
 115 }
 116
 117 /**
 118  * If the buddy does not yet exist, then create it and add it to
 119  * our buddy list.  In either case we set the correct status for
 120  * the buddy.
 121  */
 122 void
 123 bonjour_buddy_add_to_purple(BonjourBuddy *bonjour_buddy, PurpleBuddy *buddy)
 124 {
 125         PurpleGroup *group;
 126         PurpleAccount *account = bonjour_buddy->account;
 127         const char *status_id, *old_hash, *new_hash, *name;
 128
 129         /* Translate between the Bonjour status and the Purple status */
 130         if (bonjour_buddy->status != NULL && g_ascii_strcasecmp("dnd", bonjour_buddy->status) == 0)
 131                 status_id = BONJOUR_STATUS_ID_AWAY;
 132         else
 133                 status_id = BONJOUR_STATUS_ID_AVAILABLE;
 134
 135         /*
 136          * TODO: Figure out the idle time by getting the "away"
 137          * field from the DNS SD.
 138          */
 139
 140         /* Make sure the Bonjour group exists in our buddy list */
 141         group = purple_blist_find_group(BONJOUR_GROUP_NAME); /* Use the buddy's domain, instead? */
 142         if (group == NULL) {
 143                 group = purple_group_new(BONJOUR_GROUP_NAME);
 144                 purple_blist_add_group(group, NULL);
 145         }
 146
 147         /* Make sure the buddy exists in our buddy list */
 148         if (buddy == NULL)
 149                 buddy = purple_blist_find_buddy(account, bonjour_buddy->name);
 150
 151         if (buddy == NULL) {
 152                 buddy = purple_buddy_new(account, bonjour_buddy->name, NULL);
 153                 purple_blist_node_set_transient(PURPLE_BLIST_NODE(buddy), TRUE);
 154                 purple_blist_add_buddy(buddy, NULL, group, NULL);
 155         }
 156
 157         name = purple_buddy_get_name(buddy);
 158         purple_buddy_set_protocol_data(buddy, bonjour_buddy);
 159
 160         /* Create the alias for the buddy using the first and the last name */
 161         if (bonjour_buddy->nick && *bonjour_buddy->nick)
 162                 purple_serv_got_alias(purple_account_get_connection(account), name, bonjour_buddy->nick);
 163         else {
 164                 gchar *alias = NULL;
 165                 const char *first, *last;
 166                 first = bonjour_buddy->first;
 167                 last = bonjour_buddy->last;
 168                 if ((first && *first) || (last && *last))
 169                         alias = g_strdup_printf("%s%s%s",
 170                                                 (first && *first ? first : ""),
 171                                                 (first && *first && last && *last ? " " : ""),
 172                                                 (last && *last ? last : ""));
 173                 purple_serv_got_alias(purple_account_get_connection(account), name, alias);
 174                 g_free(alias);
 175         }
 176
 177         /* Set the user's status */
 178         if (bonjour_buddy->msg != NULL)
 179                 purple_protocol_got_user_status(account, name, status_id,
 180                                             "message", bonjour_buddy->msg, NULL);
 181         else
 182                 purple_protocol_got_user_status(account, name, status_id, NULL);
 183
 184         purple_protocol_got_user_idle(account, name, FALSE, 0);
 185
 186         /* TODO: Because we don't save Bonjour buddies in blist.xml,
 187          * we will always have to look up the buddy icon at login time.
 188          * I think we should figure out a way to do something about this. */
 189
 190         /* Deal with the buddy icon */
 191         old_hash = purple_buddy_icons_get_checksum_for_user(buddy);
 192         new_hash = (bonjour_buddy->phsh && *(bonjour_buddy->phsh)) ? bonjour_buddy->phsh : NULL;
 193         if (new_hash && !purple_strequal(old_hash, new_hash)) {
 194                 /* Look up the new icon data */
 195                 /* TODO: Make sure the hash assigned to the retrieved buddy icon is the same
 196                  * as what we looked up. */
 197                 bonjour_dns_sd_retrieve_buddy_icon(bonjour_buddy);
 198         } else if (!new_hash)
 199                 purple_buddy_icons_set_for_user(account, name, NULL, 0, NULL);
 200 }
 201
 202 /**
 203  * The buddy has signed off Bonjour.
 204  * If the buddy is being saved, mark as offline, otherwise delete
 205  */
 206 void bonjour_buddy_signed_off(PurpleBuddy *pb) {
 207         if (purple_blist_node_is_transient(PURPLE_BLIST_NODE(pb))) {
 208                 purple_account_remove_buddy(purple_buddy_get_account(pb), pb, NULL);
 209                 purple_blist_remove_buddy(pb);
 210         } else {
 211                 purple_protocol_got_user_status(purple_buddy_get_account(pb),
 212                                             purple_buddy_get_name(pb), "offline", NULL);
 213                 bonjour_buddy_delete(purple_buddy_get_protocol_data(pb));
 214                 purple_buddy_set_protocol_data(pb, NULL);
 215         }
 216 }
 217
 218 /**
 219  * We got the buddy icon data; deal with it
 220  */
 221 void bonjour_buddy_got_buddy_icon(BonjourBuddy *buddy, gconstpointer data, gsize len) {
 222         /* Recalculate the hash instead of using the current phsh to make sure it is accurate for the icon. */
 223         gchar *hash;
 224
 225         if (data == NULL || len == 0)
 226                 return;
 227
 228         hash = g_compute_checksum_for_data(G_CHECKSUM_SHA1, data, len);
 229
 230         purple_debug_info("bonjour", "Got buddy icon for %s icon hash='%s' phsh='%s'.\n", buddy->name,
 231                           hash, buddy->phsh ? buddy->phsh : "(null)");
 232
 233         purple_buddy_icons_set_for_user(buddy->account, buddy->name,
 234                 g_memdup(data, len), len, hash);
 235
 236         g_free(hash);
 237 }
 238
 239 /**
 240  * Deletes a buddy from memory.
 241  */
 242 void
 243 bonjour_buddy_delete(BonjourBuddy *buddy)
 244 {
 245         g_free(buddy->name);
 246         g_slist_free_full(buddy->ips, g_free);
 247         g_free(buddy->first);
 248         g_free(buddy->phsh);
 249         g_free(buddy->status);
 250         g_free(buddy->email);
 251         g_free(buddy->last);
 252         g_free(buddy->jid);
 253         g_free(buddy->AIM);
 254         g_free(buddy->vc);
 255         g_free(buddy->msg);
 256         g_free(buddy->ext);
 257         g_free(buddy->nick);
 258         g_free(buddy->node);
 259         g_free(buddy->ver);
 260
 261         bonjour_jabber_close_conversation(buddy->conversation);
 262         buddy->conversation = NULL;
 263
 264         /* Clean up any mdns implementation data */
 265         _mdns_delete_buddy(buddy);
 266
 267         g_free(buddy);
 268 }