src/purple/purple-chat.c

   1 /**
   2  * @file purple-chat.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2010-2018 SIPE Project <http://sipe.sourceforge.net/>
   7  * Copyright (C) 2009 pier11 <pier11@operamail.com>
   8  *
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  23  */
  24
  25 #ifdef HAVE_CONFIG_H
  26 #include "config.h"
  27 #endif
  28
  29 #include <time.h>
  30
  31 #include <glib.h>
  32
  33 #include "conversation.h"
  34 #include "server.h"
  35 /* for ENOTCONN */
  36 #ifdef _WIN32
  37 #include "win32/win32dep.h"
  38 #else
  39 #include <errno.h>
  40 #endif
  41
  42 #include "version.h"
  43 #if PURPLE_VERSION_CHECK(3,0,0)
  44 #include "buddylist.h"
  45 #include "conversations.h"
  46 #define BACKEND_SESSION_TO_PURPLE_CONV_CHAT(s)           ((PurpleChatConversation *) s)
  47 #define PURPLE_CONV_CHAT(c)                              c
  48 #define PURPLE_CONV_TO_SIPE_CORE_PUBLIC                  ((struct sipe_core_public *) purple_connection_get_protocol_data(purple_conversation_get_connection(conv)))
  49 #else
  50 #include "blist.h"
  51 #define purple_chat_conversation_add_user(c, n, m, f, b) purple_conv_chat_add_user(c, n, m, f, b)
  52 #define purple_chat_conversation_clear_users(c)          purple_conv_chat_clear_users(c)
  53 #define purple_chat_conversation_get_id(c)               purple_conv_chat_get_id(c)
  54 #define purple_chat_conversation_remove_user(c, n, s)    purple_conv_chat_remove_user(c, n, s)
  55 #define purple_chat_conversation_set_nick(c, n)          purple_conv_chat_set_nick(c, n)
  56 #define purple_chat_conversation_set_topic(c, n, s)      purple_conv_chat_set_topic(c, n, s)
  57 #define purple_chat_get_components(chat)                 chat->components
  58 #define purple_conversations_find_chat(g, n)             purple_find_chat(g, n)
  59 #define purple_conversations_get_chats                   purple_get_chats
  60 #define purple_conversation_get_connection(c)            purple_conversation_get_gc(c)
  61 #define purple_serv_got_chat_in(c, i, w, f, m, t)        serv_got_chat_in(c, i, w, f, m, t)
  62 #define purple_serv_got_joined_chat(c, i, n)             serv_got_joined_chat(c, i, n)
  63 #define BACKEND_SESSION_TO_PURPLE_CONV_CHAT(s)           (PURPLE_CONV_CHAT(((PurpleConversation *)s)))
  64 #define PURPLE_CHAT_USER_NONE                            PURPLE_CBFLAGS_NONE
  65 #define PURPLE_CONV_TO_SIPE_CORE_PUBLIC                  ((struct sipe_core_public *) conv->account->gc->proto_data)
  66 #define PURPLE_CONVERSATION_UPDATE_TOPIC                 PURPLE_CONV_UPDATE_TOPIC
  67 #endif
  68
  69 #include "sipe-common.h"
  70 #include "sipe-backend.h"
  71 #include "sipe-core.h"
  72 #include "sipe-nls.h"
  73
  74 #define _PurpleMessageFlags PurpleMessageFlags
  75 #include "purple-private.h"
  76
  77 /**
  78  * Mapping between chat sessions in SIPE core and libpurple backend
  79  *
  80  * PurpleAccount
  81  *    This data structure is created when the user creates the account or at
  82  *    startup. It lives as long as the account exists, i.e. until the user
  83  *    deletes it or shutdown.
  84  *
  85  *    Value does not change when connection is dropped & re-created.
  86  *    HAS: gc (PurpleConnection *)
  87  *
  88  * PurpleConversation / PurpleConvChat (sub-type)
  89  *    This data structure is created by serv_got_join_chat(). It lives as long
  90  *    as the user doesn't leave the chat or until shutdown.
  91  *
  92  *    Value does not change when connection is dropped & re-created.
  93  *    HAS: account (PurpleAccount *)
  94  *    HAS: chat ID (int), must be unique
  95  *    HAS: name (char *), must be unique
  96  *    HAS: data (GHashTable *)
  97  *
  98  * PurpleConnection
  99  *    This data structure is created when the connection to the service is
 100  *    set up. It lives as long as the connection stays open, the user disables
 101  *    the account or until shutdown.
 102  *
 103  *    Value *DOES NOT* survive a connection drop & re-creation.
 104  *    ASSOCIATED TO: account
 105  *
 106  * SIPE -> libpurple API
 107  *    add user:    purple_conv_chat_add_user(conv, ...)
 108  *    create:      serv_got_joined_chat(gc, chat ID, name)
 109  *    find user:   purple_conv_chat_find_user(conv, ...)
 110  *    message:     serv_got_chat_in(gc, chat ID, ...)
 111  *    remove user: purple_conv_chat_remove_user(conv, ...)
 112  *    topic:       purple_conv_chat_set_topic(conv, ...)
 113  *
 114  * libpurple -> SIPE API
 115  *    join_chat(gc, params (GHashTable *))
 116  *      request to join a channel (again)                 [only Group Chat]
 117  *      SIPE must call serv_got_joined_chat() on join response
 118  *
 119  *    reject_chat(gc, params (GHashTable *))                NOT IMPLEMENTED
 120  *    get_chat_name(params (GHashTable *))                  NOT IMPLEMENTED
 121  *
 122  *    chat_invite(gc, chat ID,...)
 123  *      invite a user to a join a chat
 124  *
 125  *    chat_leave(gc, chat ID)
 126  *      request to leave a channel, also called on conversation destroy
 127  *      SIPE must call serv_got_chat_left() immediately!
 128  *
 129  *    chat_whisper(gc, chat ID, ...)                        NOT IMPLEMENTED
 130  *
 131  *    chat_send(gc, chat ID, ...)
 132  *      send a message to the channel
 133  *
 134  *    set_chat_topic(gc, chat ID, ...)                      NOT IMPLEMENTED
 135  *      set channel topic                           [@TODO: for Group Chat]
 136  *
 137  *
 138  * struct sipe_chat_session
 139  *    Same life span as PurpleConversation
 140  *    Pointer stored under key "sipe" in PurpleConversation->data
 141  *    Contains information private to core to identify chat session on server
 142  *
 143  *    If connection is closed and THEN the conversation, then libpurple will
 144  *    not call chat_leave() and this will be a dangling data structure! Core
 145  *    must take care to release them at unload.
 146  *
 147  *    HAS: backend_session (gpointer) -> PurpleConversation
 148  *
 149  * struct sipe_backend_private
 150  *
 151  *    HAS: rejoin_chats (GList *)
 152  *         created on login() for existing chats
 153  *         initiate re-join calls to core (sipe_backend_chat_rejoin_all)
 154  */
 155
 156 #define SIPE_PURPLE_KEY_CHAT_SESSION "sipe"
 157
 158 struct sipe_chat_session *sipe_purple_chat_get_session(PurpleConversation *conv)
 159 {
 160         return(
 161 #if PURPLE_VERSION_CHECK(3,0,0)
 162                 g_object_get_data(G_OBJECT(conv),
 163 #else
 164                 purple_conversation_get_data(conv,
 165 #endif
 166                                   SIPE_PURPLE_KEY_CHAT_SESSION));
 167 }
 168
 169 static struct sipe_chat_session *sipe_purple_chat_find(PurpleConnection *gc,
 170                                                        int id)
 171 {
 172         PurpleConversation *conv = (PurpleConversation *) purple_conversations_find_chat(gc, id);
 173
 174         if (!conv) {
 175                 SIPE_DEBUG_ERROR("sipe_purple_chat_find: can't find chat with ID %d?!?",
 176                                  id);
 177                 return NULL;
 178         }
 179
 180         return sipe_purple_chat_get_session(conv);
 181 }
 182
 183 void sipe_purple_chat_setup_rejoin(struct sipe_backend_private *purple_private)
 184 {
 185         GList *entry = purple_conversations_get_chats();
 186
 187         while (entry) {
 188                 PurpleConversation *conv = entry->data;
 189                 if (purple_conversation_get_connection(conv) == purple_private->gc)
 190                         purple_private->rejoin_chats = g_list_prepend(purple_private->rejoin_chats,
 191                                                                       sipe_purple_chat_get_session(conv));
 192                 entry = entry->next;
 193         }
 194 }
 195
 196 void sipe_purple_chat_destroy_rejoin(struct sipe_backend_private *purple_private)
 197 {
 198         g_list_free(purple_private->rejoin_chats);
 199         purple_private->rejoin_chats = NULL;
 200 }
 201
 202 void sipe_purple_chat_invite(PurpleConnection *gc, int id,
 203                              SIPE_UNUSED_PARAMETER const char *message,
 204                              const char *name)
 205 {
 206         struct sipe_chat_session *session = sipe_purple_chat_find(gc, id);
 207         if (!session) return;
 208
 209         sipe_core_chat_invite(PURPLE_GC_TO_SIPE_CORE_PUBLIC, session, name);
 210 }
 211
 212 void sipe_purple_chat_leave(PurpleConnection *gc, int id)
 213 {
 214         struct sipe_chat_session *session = sipe_purple_chat_find(gc, id);
 215         if (!session) return;
 216
 217         sipe_core_chat_leave(PURPLE_GC_TO_SIPE_CORE_PUBLIC, session);
 218 }
 219
 220 int sipe_purple_chat_send(PurpleConnection *gc,
 221                           int id,
 222 #if PURPLE_VERSION_CHECK(3,0,0)
 223                           PurpleMessage *msg)
 224 #else
 225                           const char *what,
 226                           SIPE_UNUSED_PARAMETER PurpleMessageFlags flags)
 227 #endif
 228 {
 229         struct sipe_chat_session *session = sipe_purple_chat_find(gc, id);
 230         if (!session) return -ENOTCONN;
 231         sipe_core_chat_send(PURPLE_GC_TO_SIPE_CORE_PUBLIC, session,
 232 #if PURPLE_VERSION_CHECK(3,0,0)
 233                         purple_message_get_contents(msg));
 234 #else
 235                         what);
 236 #endif
 237         return 1;
 238 }
 239
 240 static void sipe_purple_chat_menu_unlock_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 241                                             PurpleConversation *conv)
 242 {
 243         struct sipe_core_public *sipe_public = PURPLE_CONV_TO_SIPE_CORE_PUBLIC;
 244         struct sipe_chat_session *chat_session = sipe_purple_chat_get_session(conv);
 245         SIPE_DEBUG_INFO("sipe_purple_chat_menu_lock_cb: %p %p", conv, chat_session);
 246         sipe_core_chat_modify_lock(sipe_public, chat_session, FALSE);
 247 }
 248
 249 static void sipe_purple_chat_menu_lock_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 250                                           PurpleConversation *conv)
 251 {
 252         struct sipe_core_public *sipe_public = PURPLE_CONV_TO_SIPE_CORE_PUBLIC;
 253         struct sipe_chat_session *chat_session = sipe_purple_chat_get_session(conv);
 254         SIPE_DEBUG_INFO("sipe_purple_chat_menu_lock_cb: %p %p", conv, chat_session);
 255         sipe_core_chat_modify_lock(sipe_public, chat_session, TRUE);
 256 }
 257
 258 #ifdef HAVE_VV
 259
 260 static void sipe_purple_chat_menu_join_call_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 261                                                PurpleConversation *conv)
 262 {
 263         struct sipe_core_public *sipe_public = PURPLE_CONV_TO_SIPE_CORE_PUBLIC;
 264         struct sipe_chat_session *chat_session = sipe_purple_chat_get_session(conv);
 265         SIPE_DEBUG_INFO("sipe_purple_chat_join_call_cb: %p %p", conv, chat_session);
 266         sipe_core_media_connect_conference(sipe_public, chat_session);
 267 }
 268
 269 #ifdef HAVE_APPSHARE
 270 static void
 271 sipe_purple_chat_menu_show_presentation_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 272                                            PurpleConversation *conv)
 273 {
 274         sipe_appshare_role role;
 275
 276         role = sipe_core_conf_get_appshare_role(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 277                                                 sipe_purple_chat_get_session(conv));
 278
 279         if (role == SIPE_APPSHARE_ROLE_VIEWER) {
 280                 return;
 281         }
 282
 283         sipe_core_appshare_connect_conference(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 284                                               sipe_purple_chat_get_session(conv),
 285                                               FALSE);
 286 }
 287
 288 #ifdef HAVE_APPSHARE_SERVER
 289 static void
 290 sipe_purple_chat_menu_share_desktop_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 291                                        PurpleConversation *conv)
 292 {
 293         sipe_core_conf_share_desktop(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 294                                      sipe_purple_chat_get_session(conv));
 295 }
 296 #endif
 297 #endif
 298 #endif // HAVE_VV
 299
 300 static void sipe_purple_chat_menu_entry_info_cb(SIPE_UNUSED_PARAMETER PurpleChat *chat,
 301                                                 PurpleConversation *conv)
 302 {
 303         gchar *tmp = sipe_core_conf_entry_info(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 304                                                sipe_purple_chat_get_session(conv));
 305         purple_notify_formatted(NULL, NULL, "", NULL, tmp, NULL, NULL);
 306         g_free(tmp);
 307 }
 308
 309 GList *
 310 sipe_purple_chat_menu(PurpleChat *chat)
 311 {
 312         PurpleConversation *conv = g_hash_table_lookup(purple_chat_get_components(chat),
 313                                                        SIPE_PURPLE_COMPONENT_KEY_CONVERSATION);
 314         GList *menu = NULL;
 315
 316         if (conv) {
 317                 PurpleMenuAction *act = NULL;
 318                 struct sipe_chat_session *chat_session;
 319 #ifdef HAVE_APPSHARE
 320                 sipe_appshare_role role;
 321 #endif
 322
 323                 SIPE_DEBUG_INFO("sipe_purple_chat_menu: %p", conv);
 324
 325                 chat_session = sipe_purple_chat_get_session(conv);
 326
 327                 switch (sipe_core_chat_lock_status(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 328                                                    chat_session)) {
 329                 case SIPE_CHAT_LOCK_STATUS_UNLOCKED:
 330                         act = purple_menu_action_new(_("Lock"),
 331                                                      PURPLE_CALLBACK(sipe_purple_chat_menu_lock_cb),
 332                                                      conv, NULL);
 333                         break;
 334                 case SIPE_CHAT_LOCK_STATUS_LOCKED:
 335                         act = purple_menu_action_new(_("Unlock"),
 336                                                      PURPLE_CALLBACK(sipe_purple_chat_menu_unlock_cb),
 337                                                      conv, NULL);
 338                         break;
 339                 default:
 340                         /* Not allowed */
 341                         break;
 342                 }
 343
 344                 if (act)
 345                         menu = g_list_prepend(menu, act);
 346
 347                 switch (sipe_core_chat_type(chat_session)) {
 348                 case SIPE_CHAT_TYPE_CONFERENCE:
 349                 case SIPE_CHAT_TYPE_MULTIPARTY:
 350 #ifdef HAVE_VV
 351                         if (!sipe_core_media_get_call(PURPLE_CONV_TO_SIPE_CORE_PUBLIC)) {
 352                                 act = NULL;
 353                                 act = purple_menu_action_new(_("Join conference call"),
 354                                                              PURPLE_CALLBACK(sipe_purple_chat_menu_join_call_cb),
 355                                                              conv, NULL);
 356                                 if (act)
 357                                         menu = g_list_prepend(menu, act);
 358                         }
 359 #ifdef HAVE_APPSHARE
 360                         role = sipe_core_conf_get_appshare_role(PURPLE_CONV_TO_SIPE_CORE_PUBLIC,
 361                                                                 chat_session);
 362                         if (role == SIPE_APPSHARE_ROLE_NONE) {
 363                                 act = purple_menu_action_new(_("Show presentation"),
 364                                                              PURPLE_CALLBACK(sipe_purple_chat_menu_show_presentation_cb),
 365                                                              conv, NULL);
 366                                 menu = g_list_prepend(menu, act);
 367                         }
 368 #ifdef HAVE_APPSHARE_SERVER
 369                         if (role != SIPE_APPSHARE_ROLE_PRESENTER) {
 370                                 act = purple_menu_action_new(_("Share my desktop"),
 371                                                              PURPLE_CALLBACK(sipe_purple_chat_menu_share_desktop_cb),
 372                                                              conv, NULL);
 373                                 menu = g_list_prepend(menu, act);
 374                         }
 375 #endif
 376 #endif
 377 #endif // HAVE_VV
 378                         act = purple_menu_action_new(_("Meeting entry info"),
 379                                                      PURPLE_CALLBACK(sipe_purple_chat_menu_entry_info_cb),
 380                                                      conv, NULL);
 381                         menu = g_list_append(menu, act);
 382                         break;
 383                 default:
 384                         break;
 385                 }
 386         }
 387
 388         return menu;
 389 }
 390
 391 void sipe_backend_chat_session_destroy(SIPE_UNUSED_PARAMETER struct sipe_backend_chat_session *session)
 392 {
 393         /* Nothing to do here */
 394 }
 395
 396 void sipe_backend_chat_add(struct sipe_backend_chat_session *backend_session,
 397                            const gchar *uri,
 398                            gboolean is_new)
 399 {
 400         purple_chat_conversation_add_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 401                                           uri,
 402                                           NULL,
 403                                           PURPLE_CHAT_USER_NONE,
 404                                           is_new);
 405 }
 406
 407 void sipe_backend_chat_close(struct sipe_backend_chat_session *backend_session)
 408 {
 409         purple_chat_conversation_clear_users(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session));
 410 }
 411
 412 static int sipe_purple_chat_id(PurpleConnection *gc)
 413 {
 414         /**
 415          * A non-volatile ID counter.
 416          * Should survive connection drop & reconnect.
 417          */
 418         static int chat_id = 0;
 419
 420         /* Find next free ID */
 421         do {
 422                 if (++chat_id < 0) chat_id = 0;
 423         } while (purple_conversations_find_chat(gc, chat_id) != NULL)
 424 ;
 425         return chat_id;
 426 }
 427
 428 struct sipe_backend_chat_session *sipe_backend_chat_create(struct sipe_core_public *sipe_public,
 429                                                            struct sipe_chat_session *session,
 430                                                            const gchar *title,
 431                                                            const gchar *nick)
 432 {
 433         struct sipe_backend_private *purple_private = sipe_public->backend_private;
 434 #if PURPLE_VERSION_CHECK(3,0,0)
 435         PurpleChatConversation *conv;
 436 #else
 437         PurpleConversation *conv;
 438 #endif
 439
 440         /*
 441          * Adium calls back into SIPE code during execution of the following
 442          * libpurple API. That code needs access to "session". As "conv" is
 443          * still being initialized we can't use sipe_purple_chat_get_session().
 444          */
 445         purple_private->adium_chat_session = session;
 446         conv = purple_serv_got_joined_chat(purple_private->gc,
 447                                            sipe_purple_chat_id(purple_private->gc),
 448                                            title);
 449         purple_private->adium_chat_session = NULL;
 450 #if PURPLE_VERSION_CHECK(3,0,0)
 451         g_object_set_data(G_OBJECT(conv),
 452 #else
 453         purple_conversation_set_data(conv,
 454 #endif
 455                                      SIPE_PURPLE_KEY_CHAT_SESSION,
 456                                      session);
 457         purple_chat_conversation_set_nick(PURPLE_CONV_CHAT(conv), nick);
 458         return((struct sipe_backend_chat_session *) conv);
 459 }
 460
 461 gboolean sipe_backend_chat_find(struct sipe_backend_chat_session *backend_session,
 462                             const gchar *uri)
 463 {
 464 #if PURPLE_VERSION_CHECK(3,0,0)
 465         return(purple_chat_conversation_find_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 466                                                   uri) != NULL);
 467 #else
 468         return purple_conv_chat_find_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 469                                           uri);
 470 #endif
 471 }
 472
 473 gboolean sipe_backend_chat_is_operator(struct sipe_backend_chat_session *backend_session,
 474                                        const gchar *uri)
 475 {
 476 #if PURPLE_VERSION_CHECK(3,0,0)
 477         return((purple_chat_user_get_flags(
 478                         purple_chat_conversation_find_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 479                                                            uri))
 480                 & PURPLE_CHAT_USER_OP)
 481                 == PURPLE_CHAT_USER_OP);
 482 #else
 483         return (purple_conv_chat_user_get_flags(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 484                                                 uri) & PURPLE_CBFLAGS_OP)
 485                 == PURPLE_CBFLAGS_OP;
 486 #endif
 487 }
 488
 489 void sipe_backend_chat_message(struct sipe_core_public *sipe_public,
 490                                struct sipe_backend_chat_session *backend_session,
 491                                const gchar *from,
 492                                time_t when,
 493                                const gchar *html)
 494 {
 495         struct sipe_backend_private *purple_private = sipe_public->backend_private;
 496         purple_serv_got_chat_in(purple_private->gc,
 497                                 purple_chat_conversation_get_id(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session)),
 498                                 from,
 499                                 PURPLE_MESSAGE_RECV,
 500                                 html,
 501                                 when ? when : time(NULL));
 502 }
 503
 504 void sipe_backend_chat_operator(struct sipe_backend_chat_session *backend_session,
 505                                 const gchar *uri)
 506 {
 507 #if PURPLE_VERSION_CHECK(3,0,0)
 508         purple_chat_user_set_flags(
 509                 purple_chat_conversation_find_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 510                                                    uri),
 511                 PURPLE_CHAT_USER_NONE | PURPLE_CHAT_USER_OP);
 512 #else
 513         purple_conv_chat_user_set_flags(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 514                                         uri,
 515                                         PURPLE_CBFLAGS_NONE | PURPLE_CBFLAGS_OP);
 516 #endif
 517 }
 518
 519 void sipe_backend_chat_rejoin(struct sipe_core_public *sipe_public,
 520                               struct sipe_backend_chat_session *backend_session,
 521                               const gchar *nick,
 522                               const gchar *title)
 523 {
 524         struct sipe_backend_private *purple_private = sipe_public->backend_private;
 525 #if PURPLE_VERSION_CHECK(3,0,0)
 526         PurpleChatConversation *chat = BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session);
 527         PurpleChatConversation *new;
 528 #else
 529         PurpleConvChat *chat =         BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session);
 530         PurpleConversation *new;
 531 #endif
 532
 533         /**
 534          * As the chat is marked as "left", serv_got_joined_chat() will
 535          * do a "rejoin cleanup" and return the same conversation.
 536          */
 537         new = purple_serv_got_joined_chat(purple_private->gc,
 538                                           purple_chat_conversation_get_id(chat),
 539                                           title);
 540         SIPE_DEBUG_INFO("sipe_backend_chat_rejoin: old %p (%p) == new %p (%p)",
 541                         backend_session, chat,
 542                         new, PURPLE_CONV_CHAT(new));
 543         purple_chat_conversation_set_nick(chat, nick);
 544 }
 545
 546 /**
 547  * Connection re-established: tell core what chats need to be rejoined
 548  */
 549 void sipe_backend_chat_rejoin_all(struct sipe_core_public *sipe_public)
 550 {
 551         struct sipe_backend_private *purple_private = sipe_public->backend_private;
 552         GList *entry = purple_private->rejoin_chats;
 553
 554         while (entry) {
 555                 sipe_core_chat_rejoin(sipe_public, entry->data);
 556                 entry = entry->next;
 557         }
 558         sipe_purple_chat_destroy_rejoin(purple_private);
 559 }
 560
 561 void sipe_backend_chat_remove(struct sipe_backend_chat_session *backend_session,
 562                               const gchar *uri)
 563 {
 564         purple_chat_conversation_remove_user(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 565                                                      uri,
 566                                                      NULL /* reason */);
 567 }
 568
 569 void sipe_backend_chat_show(struct sipe_backend_chat_session *backend_session)
 570 {
 571         /* Bring existing purple chat to the front */
 572         /* @TODO: This seems to the trick, but is it the correct way? */
 573         purple_conversation_update((PurpleConversation *) backend_session,
 574                                    PURPLE_CONVERSATION_UPDATE_TOPIC);
 575 }
 576
 577 void sipe_backend_chat_topic(struct sipe_backend_chat_session *backend_session,
 578                               const gchar *topic)
 579 {
 580         purple_chat_conversation_set_topic(BACKEND_SESSION_TO_PURPLE_CONV_CHAT(backend_session),
 581                                            NULL,
 582                                            topic);
 583 }
 584
 585 /*
 586   Local Variables:
 587   mode: c
 588   c-file-style: "bsd"
 589   indent-tabs-mode: t
 590   tab-width: 8
 591   End:
 592 */