src/core/sipe-conf.c

   1 /**
   2  * @file sipe-conf.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2010-2014 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 /**
  26  * Documentation references:
  27  *
  28  * Microsoft DevNet: [MS-CONFIM]: Centralized Conference Control Protocol:
  29  *                                Instant Messaging Extensions
  30  *  <http://msdn.microsoft.com/en-us/library/cc431500%28v=office.12%29.aspx>
  31  *
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 #endif
  37
  38 #include <stdlib.h>
  39 #include <string.h>
  40 #include <time.h>
  41
  42 #include <glib.h>
  43
  44 #include "sipe-common.h"
  45 #include "sipmsg.h"
  46 #include "sip-transport.h"
  47 #include "sipe-backend.h"
  48 #include "sipe-buddy.h"
  49 #include "sipe-chat.h"
  50 #include "sipe-conf.h"
  51 #include "sipe-core.h"
  52 #include "sipe-core-private.h"
  53 #include "sipe-dialog.h"
  54 #include "sipe-im.h"
  55 #include "sipe-nls.h"
  56 #include "sipe-session.h"
  57 #include "sipe-subscriptions.h"
  58 #include "sipe-user.h"
  59 #include "sipe-utils.h"
  60 #include "sipe-xml.h"
  61
  62 #ifdef HAVE_VV
  63 #define ENTITY_VIEW_AUDIO_VIDEO "<msci:entity-view entity=\"audio-video\"/>"
  64 #else
  65 #define ENTITY_VIEW_AUDIO_VIDEO
  66 #endif
  67
  68 /**
  69  * Add Conference request to FocusFactory.
  70  * @param focus_factory_uri (%s) Ex.: sip:bob7@boston.local;gruu;opaque=app:conf:focusfactory
  71  * @param from              (%s) Ex.: sip:bob7@boston.local
  72  * @param request_id        (%d) Ex.: 1094520
  73  * @param conference_id     (%s) Ex.: 8386E6AEAAA41E4AA6627BA76D43B6D1
  74  * @param expiry_time       (%s) Ex.: 2009-07-13T17:57:09Z , Default duration: 7 hours
  75  */
  76 #define SIPE_SEND_CONF_ADD \
  77 "<?xml version=\"1.0\"?>"\
  78 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" "\
  79         "xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "\
  80         "C3PVersion=\"1\" "\
  81         "to=\"%s\" "\
  82         "from=\"%s\" "\
  83         "requestId=\"%d\">"\
  84         "<addConference>"\
  85                 "<ci:conference-info xmlns:ci=\"urn:ietf:params:xml:ns:conference-info\" entity=\"\" xmlns:msci=\"http://schemas.microsoft.com/rtc/2005/08/confinfoextensions\">"\
  86                         "<ci:conference-description>"\
  87                                 "<ci:subject/>"\
  88                                 "<msci:conference-id>%s</msci:conference-id>"\
  89                                 "<msci:expiry-time>%s</msci:expiry-time>"\
  90                                 "<msci:admission-policy>openAuthenticated</msci:admission-policy>"\
  91                         "</ci:conference-description>"\
  92                         "<msci:conference-view>"\
  93                                 "<msci:entity-view entity=\"chat\"/>"\
  94                                 ENTITY_VIEW_AUDIO_VIDEO \
  95                         "</msci:conference-view>"\
  96                 "</ci:conference-info>"\
  97         "</addConference>"\
  98 "</request>"
  99
 100 /**
 101  * AddUser request to Focus.
 102  * Params:
 103  * focus_URI, from, request_id, focus_URI, from, endpoint_GUID
 104  */
 105 #define SIPE_SEND_CONF_ADD_USER \
 106 "<?xml version=\"1.0\"?>"\
 107 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "\
 108         "C3PVersion=\"1\" "\
 109         "to=\"%s\" "\
 110         "from=\"%s\" "\
 111         "requestId=\"%d\">"\
 112         "<addUser>"\
 113                 "<conferenceKeys confEntity=\"%s\"/>"\
 114                 "<ci:user xmlns:ci=\"urn:ietf:params:xml:ns:conference-info\" entity=\"%s\">"\
 115                         "<ci:roles>"\
 116                                 "<ci:entry>attendee</ci:entry>"\
 117                         "</ci:roles>"\
 118                         "<ci:endpoint entity=\"{%s}\" xmlns:msci=\"http://schemas.microsoft.com/rtc/2005/08/confinfoextensions\"/>"\
 119                 "</ci:user>"\
 120         "</addUser>"\
 121 "</request>"
 122
 123 /**
 124  * ModifyUserRoles request to Focus. Makes user a leader.
 125  * @param focus_uri (%s)
 126  * @param from (%s)
 127  * @param request_id (%d)
 128  * @param focus_uri (%s)
 129  * @param who (%s)
 130  */
 131 #define SIPE_SEND_CONF_MODIFY_USER_ROLES \
 132 "<?xml version=\"1.0\"?>"\
 133 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "\
 134         "C3PVersion=\"1\" "\
 135         "to=\"%s\" "\
 136         "from=\"%s\" "\
 137         "requestId=\"%d\">"\
 138         "<modifyUserRoles>"\
 139                 "<userKeys confEntity=\"%s\" userEntity=\"%s\"/>"\
 140                 "<user-roles xmlns=\"urn:ietf:params:xml:ns:conference-info\">"\
 141                         "<entry>presenter</entry>"\
 142                 "</user-roles>"\
 143         "</modifyUserRoles>"\
 144 "</request>"
 145
 146 /**
 147  * ModifyConferenceLock request to Focus. Locks/unlocks conference.
 148  * @param focus_uri (%s)
 149  * @param from (%s)
 150  * @param request_id (%d)
 151  * @param focus_uri (%s)
 152  * @param locked (%s) "true" or "false" values applicable
 153  */
 154 #define SIPE_SEND_CONF_MODIFY_CONF_LOCK \
 155 "<?xml version=\"1.0\"?>"\
 156 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "\
 157         "C3PVersion=\"1\" "\
 158         "to=\"%s\" "\
 159         "from=\"%s\" "\
 160         "requestId=\"%d\">"\
 161         "<modifyConferenceLock>"\
 162                 "<conferenceKeys confEntity=\"%s\"/>"\
 163                 "<locked>%s</locked>"\
 164         "</modifyConferenceLock>"\
 165 "</request>"
 166
 167 /**
 168  * ModifyConferenceLock request to Focus. Locks/unlocks conference.
 169  * @param focus_uri (%s)
 170  * @param from (%s)
 171  * @param request_id (%d)
 172  * @param focus_uri (%s)
 173  * @param who (%s)
 174  */
 175 #define SIPE_SEND_CONF_DELETE_USER \
 176 "<?xml version=\"1.0\"?>"\
 177 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "\
 178         "C3PVersion=\"1\" "\
 179         "to=\"%s\" "\
 180         "from=\"%s\" "\
 181         "requestId=\"%d\">"\
 182         "<deleteUser>"\
 183                 "<userKeys confEntity=\"%s\" userEntity=\"%s\"/>"\
 184         "</deleteUser>"\
 185 "</request>"
 186
 187 /**
 188  * Invite counterparty to join conference.
 189  * @param focus_uri (%s)
 190  * @param subject (%s) of conference
 191  */
 192 #define SIPE_SEND_CONF_INVITE \
 193 "<Conferencing version=\"2.0\">"\
 194         "<focus-uri>%s</focus-uri>"\
 195         "<subject>%s</subject>"\
 196         "<im available=\"true\">"\
 197                 "<first-im/>"\
 198         "</im>"\
 199 "</Conferencing>"
 200
 201 /**
 202  * Generates random GUID.
 203  * This method is borrowed from pidgin's msnutils.c
 204  */
 205 static char *
 206 rand_guid()
 207 {
 208         return g_strdup_printf("%4X%4X-%4X-%4X-%4X-%4X%4X%4X",
 209                         rand() % 0xAAFF + 0x1111,
 210                         rand() % 0xAAFF + 0x1111,
 211                         rand() % 0xAAFF + 0x1111,
 212                         rand() % 0xAAFF + 0x1111,
 213                         rand() % 0xAAFF + 0x1111,
 214                         rand() % 0xAAFF + 0x1111,
 215                         rand() % 0xAAFF + 0x1111,
 216                         rand() % 0xAAFF + 0x1111);
 217 }
 218
 219 /** Invite us to the focus callback */
 220 static gboolean
 221 process_invite_conf_focus_response(struct sipe_core_private *sipe_private,
 222                                    struct sipmsg *msg,
 223                                    SIPE_UNUSED_PARAMETER struct transaction *trans)
 224 {
 225         struct sip_session *session = NULL;
 226         char *focus_uri = parse_from(sipmsg_find_header(msg, "To"));
 227
 228         session = sipe_session_find_conference(sipe_private, focus_uri);
 229
 230         if (!session) {
 231                 SIPE_DEBUG_INFO("process_invite_conf_focus_response: unable to find conf session with focus=%s", focus_uri);
 232                 g_free(focus_uri);
 233                 return FALSE;
 234         }
 235
 236         if (!session->focus_dialog) {
 237                 SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: session's focus_dialog is NULL");
 238                 g_free(focus_uri);
 239                 return FALSE;
 240         }
 241
 242         sipe_dialog_parse(session->focus_dialog, msg, TRUE);
 243
 244         if (msg->response >= 200) {
 245                 /* send ACK to focus */
 246                 session->focus_dialog->cseq = 0;
 247                 sip_transport_ack(sipe_private, session->focus_dialog);
 248                 session->focus_dialog->outgoing_invite = NULL;
 249                 session->focus_dialog->is_established = TRUE;
 250         }
 251
 252         if (msg->response >= 400) {
 253                 gchar *reason = sipmsg_get_ms_diagnostics_reason(msg);
 254
 255                 SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: INVITE response is not 200. Failed to join focus.");
 256                 sipe_backend_notify_error(SIPE_CORE_PUBLIC,
 257                                           _("Failed to join the conference"),
 258                                           reason ? reason : _("no reason given"));
 259                 g_free(reason);
 260
 261                 sipe_session_remove(sipe_private, session);
 262                 g_free(focus_uri);
 263                 return FALSE;
 264         } else if (msg->response == 200) {
 265                 sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
 266                 const gchar *code = sipe_xml_attribute(xn_response, "code");
 267                 if (sipe_strequal(code, "success")) {
 268                         /* subscribe to focus */
 269                         sipe_subscribe_conference(sipe_private,
 270                                                   session->chat_session->id,
 271                                                   FALSE);
 272 #ifdef HAVE_VV
 273                         if (session->is_call)
 274                                 sipe_core_media_connect_conference(SIPE_CORE_PUBLIC,
 275                                                                    session->chat_session);
 276 #endif
 277                 }
 278                 sipe_xml_free(xn_response);
 279         }
 280
 281         g_free(focus_uri);
 282         return TRUE;
 283 }
 284
 285 static gchar *
 286 parse_ocs_focus_uri(const gchar *uri)
 287 {
 288         const gchar *confkey;
 289         size_t uri_len;
 290
 291         if (!uri)
 292                 return NULL;
 293
 294         // URI can have this prefix if it was typed in by the user
 295         if (g_str_has_prefix(uri, "meet:") || g_str_has_prefix(uri, "conf:")) {
 296                 uri += 5;
 297         }
 298
 299         uri_len = strlen(uri);
 300
 301         if (!uri || !g_str_has_prefix(uri, "sip:") ||
 302                 uri_len == 4 || g_strstr_len(uri, -1, "%")) {
 303                 return NULL;
 304         }
 305
 306         confkey = g_strstr_len(uri, -1, "?");
 307         if (confkey) {
 308                 /* TODO: Investigate how conf-key field should be used,
 309                  * ignoring for now */
 310                 uri_len = confkey - uri;
 311         }
 312
 313         return g_strndup(uri, uri_len);
 314 }
 315
 316 static gchar *
 317 parse_lync_join_url(const gchar *uri)
 318 {
 319         gchar *focus_uri = NULL;
 320         gchar **parts;
 321         int parts_count = 0;
 322
 323         if (!uri)
 324                 return NULL;
 325
 326         if (g_str_has_prefix(uri, "https://")) {
 327                 uri += 8;
 328         } else if (g_str_has_prefix(uri, "http://")) {
 329                 uri += 7;
 330         }
 331
 332         parts = g_strsplit(uri, "/", 0);
 333
 334         for (parts_count = 0; parts[parts_count]; ++parts_count);
 335         if (parts_count >= 3) {
 336                 gchar *base_url = parts[0];
 337                 gchar *conference_id = parts[parts_count - 1];
 338                 gchar *organizer_alias = parts[parts_count - 2];
 339
 340                 gchar **url_parts = g_strsplit(base_url, ".", 0);
 341                 int url_parts_count = 0;
 342                 for (url_parts_count = 0; url_parts[url_parts_count]; ++url_parts_count);
 343
 344                 if (url_parts_count >= 3) {
 345                         focus_uri = g_strdup_printf("sip:%s@%s.%s;gruu;opaque=app:conf:focus:id:%s",
 346                                         organizer_alias,
 347                                         url_parts[url_parts_count - 2], url_parts[url_parts_count - 1],
 348                                         conference_id);
 349                 }
 350
 351                 g_strfreev(url_parts);
 352         }
 353
 354         g_strfreev(parts);
 355
 356         return focus_uri;
 357 }
 358
 359 struct sip_session *
 360 sipe_core_conf_create(struct sipe_core_public *sipe_public,
 361                       const gchar *uri)
 362 {
 363         gchar *uri_ue = sipe_utils_uri_unescape(uri);
 364         gchar *focus_uri;
 365         struct sip_session *session = NULL;
 366
 367         focus_uri = parse_ocs_focus_uri(uri_ue);
 368         if (!focus_uri) {
 369                 focus_uri = parse_lync_join_url(uri_ue);
 370         }
 371
 372         if (focus_uri) {
 373                 session = sipe_conf_create(SIPE_CORE_PRIVATE, NULL, focus_uri);
 374                 g_free(focus_uri);
 375         } else {
 376                 gchar *error = g_strdup_printf(_("\"%s\" is not a valid conference URI"),
 377                                                uri ? uri : "");
 378                 sipe_backend_notify_error(sipe_public,
 379                                           _("Failed to join the conference"),
 380                                           error);
 381                 g_free(error);
 382         }
 383
 384         g_free(uri_ue);
 385
 386         return session;
 387 }
 388
 389 /** Create new session with Focus URI */
 390 struct sip_session *
 391 sipe_conf_create(struct sipe_core_private *sipe_private,
 392                  struct sipe_chat_session *chat_session,
 393                  const gchar *focus_uri)
 394 {
 395         gchar *hdr;
 396         gchar *contact;
 397         gchar *body;
 398         gchar *self;
 399         struct sip_session *session = sipe_session_add_chat(sipe_private,
 400                                                             chat_session,
 401                                                             FALSE,
 402                                                             focus_uri);
 403
 404         session->focus_dialog = g_new0(struct sip_dialog, 1);
 405         session->focus_dialog->callid = gencallid();
 406         session->focus_dialog->with = g_strdup(session->chat_session->id);
 407         session->focus_dialog->endpoint_GUID = rand_guid();
 408         session->focus_dialog->ourtag = gentag();
 409
 410         contact = get_contact(sipe_private);
 411         hdr = g_strdup_printf(
 412                 "Supported: ms-sender\r\n"
 413                 "Contact: %s\r\n"
 414                 "Content-Type: application/cccp+xml\r\n",
 415                 contact);
 416         g_free(contact);
 417
 418         /* @TODO put request_id to queue to further compare with incoming one */
 419         /* focus_URI, from, request_id, focus_URI, from, endpoint_GUID */
 420         self = sip_uri_self(sipe_private);
 421         body = g_strdup_printf(
 422                 SIPE_SEND_CONF_ADD_USER,
 423                 session->focus_dialog->with,
 424                 self,
 425                 session->request_id++,
 426                 session->focus_dialog->with,
 427                 self,
 428                 session->focus_dialog->endpoint_GUID);
 429
 430         session->focus_dialog->outgoing_invite =
 431                 sip_transport_invite(sipe_private,
 432                                      hdr,
 433                                      body,
 434                                      session->focus_dialog,
 435                                      process_invite_conf_focus_response);
 436         g_free(body);
 437         g_free(hdr);
 438
 439         /* Rejoin existing session? */
 440         if (chat_session) {
 441                 SIPE_DEBUG_INFO("sipe_conf_create: rejoin '%s' (%s)",
 442                                 chat_session->title,
 443                                 chat_session->id);
 444                 sipe_backend_chat_rejoin(SIPE_CORE_PUBLIC,
 445                                          chat_session->backend,
 446                                          self,
 447                                          chat_session->title);
 448         }
 449         g_free(self);
 450
 451         return(session);
 452 }
 453
 454 /** Modify User Role */
 455 void
 456 sipe_conf_modify_user_role(struct sipe_core_private *sipe_private,
 457                            struct sip_session *session,
 458                            const gchar* who)
 459 {
 460         gchar *hdr;
 461         gchar *body;
 462         gchar *self;
 463
 464         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 465                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_modify_user_role: no dialog with focus, exiting.");
 466                 return;
 467         }
 468
 469         hdr = g_strdup(
 470                 "Content-Type: application/cccp+xml\r\n");
 471
 472         /* @TODO put request_id to queue to further compare with incoming one */
 473         self = sip_uri_self(sipe_private);
 474         body = g_strdup_printf(
 475                 SIPE_SEND_CONF_MODIFY_USER_ROLES,
 476                 session->focus_dialog->with,
 477                 self,
 478                 session->request_id++,
 479                 session->focus_dialog->with,
 480                 who);
 481         g_free(self);
 482
 483         sip_transport_info(sipe_private,
 484                            hdr,
 485                            body,
 486                            session->focus_dialog,
 487                            NULL);
 488         g_free(body);
 489         g_free(hdr);
 490 }
 491
 492 /**
 493  * Check conference lock status
 494  */
 495 sipe_chat_lock_status sipe_core_chat_lock_status(struct sipe_core_public *sipe_public,
 496                                                  struct sipe_chat_session *chat_session)
 497 {
 498         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
 499         sipe_chat_lock_status status = SIPE_CHAT_LOCK_STATUS_NOT_ALLOWED;
 500
 501         if (chat_session &&
 502             (chat_session->type == SIPE_CHAT_TYPE_CONFERENCE)) {
 503                 struct sip_session *session = sipe_session_find_chat(sipe_private,
 504                                                                      chat_session);
 505                 if (session) {
 506                         gchar *self = sip_uri_self(sipe_private);
 507
 508                         /* Only operators are allowed to change the lock status */
 509                         if (sipe_backend_chat_is_operator(chat_session->backend, self)) {
 510                                 status = session->locked ?
 511                                         SIPE_CHAT_LOCK_STATUS_LOCKED :
 512                                         SIPE_CHAT_LOCK_STATUS_UNLOCKED;
 513                         }
 514
 515                         g_free(self);
 516                 }
 517         }
 518
 519         return(status);
 520 }
 521
 522 /**
 523  * Modify Conference Lock
 524  * Sends request to Focus.
 525  * INFO method is a carrier of application/cccp+xml
 526  */
 527 void
 528 sipe_core_chat_modify_lock(struct sipe_core_public *sipe_public,
 529                            struct sipe_chat_session *chat_session,
 530                            const gboolean locked)
 531 {
 532         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
 533         gchar *hdr;
 534         gchar *body;
 535         gchar *self;
 536
 537         struct sip_session *session = sipe_session_find_chat(sipe_private,
 538                                                              chat_session);
 539
 540         if (!session) return;
 541         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 542                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_modify_conference_lock: no dialog with focus, exiting.");
 543                 return;
 544         }
 545
 546         hdr = g_strdup(
 547                 "Content-Type: application/cccp+xml\r\n");
 548
 549         /* @TODO put request_id to queue to further compare with incoming one */
 550         self = sip_uri_self(sipe_private);
 551         body = g_strdup_printf(
 552                 SIPE_SEND_CONF_MODIFY_CONF_LOCK,
 553                 session->focus_dialog->with,
 554                 self,
 555                 session->request_id++,
 556                 session->focus_dialog->with,
 557                 locked ? "true" : "false");
 558         g_free(self);
 559
 560         sip_transport_info(sipe_private,
 561                            hdr,
 562                            body,
 563                            session->focus_dialog,
 564                            NULL);
 565         g_free(body);
 566         g_free(hdr);
 567 }
 568
 569 /** Modify Delete User */
 570 void
 571 sipe_conf_delete_user(struct sipe_core_private *sipe_private,
 572                       struct sip_session *session,
 573                       const gchar* who)
 574 {
 575         gchar *hdr;
 576         gchar *body;
 577         gchar *self;
 578
 579         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 580                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_delete_user: no dialog with focus, exiting.");
 581                 return;
 582         }
 583
 584         hdr = g_strdup(
 585                 "Content-Type: application/cccp+xml\r\n");
 586
 587         /* @TODO put request_id to queue to further compare with incoming one */
 588         self = sip_uri_self(sipe_private);
 589         body = g_strdup_printf(
 590                 SIPE_SEND_CONF_DELETE_USER,
 591                 session->focus_dialog->with,
 592                 self,
 593                 session->request_id++,
 594                 session->focus_dialog->with,
 595                 who);
 596         g_free(self);
 597
 598         sip_transport_info(sipe_private,
 599                            hdr,
 600                            body,
 601                            session->focus_dialog,
 602                            NULL);
 603         g_free(body);
 604         g_free(hdr);
 605 }
 606
 607 /** Invite counterparty to join conference callback */
 608 static gboolean
 609 process_invite_conf_response(struct sipe_core_private *sipe_private,
 610                              struct sipmsg *msg,
 611                              SIPE_UNUSED_PARAMETER struct transaction *trans)
 612 {
 613         struct sip_dialog *dialog = g_new0(struct sip_dialog, 1);
 614
 615         dialog->callid = g_strdup(sipmsg_find_header(msg, "Call-ID"));
 616         dialog->cseq = sipmsg_parse_cseq(msg);
 617         dialog->with = parse_from(sipmsg_find_header(msg, "To"));
 618         sipe_dialog_parse(dialog, msg, TRUE);
 619
 620         if (msg->response >= 200) {
 621                 /* send ACK to counterparty */
 622                 dialog->cseq--;
 623                 sip_transport_ack(sipe_private, dialog);
 624                 dialog->outgoing_invite = NULL;
 625                 dialog->is_established = TRUE;
 626         }
 627
 628         if (msg->response >= 400) {
 629                 SIPE_DEBUG_INFO("process_invite_conf_response: INVITE response is not 200. Failed to invite %s.", dialog->with);
 630                 /* @TODO notify user of failure to invite counterparty */
 631                 sipe_dialog_free(dialog);
 632                 return FALSE;
 633         }
 634
 635         if (msg->response >= 200) {
 636                 struct sip_session *session = sipe_session_find_im(sipe_private, dialog->with);
 637                 struct sip_dialog *im_dialog = sipe_dialog_find(session, dialog->with);
 638
 639                 /* close IM session to counterparty */
 640                 if (im_dialog) {
 641                         sip_transport_bye(sipe_private, im_dialog);
 642                         sipe_dialog_remove(session, dialog->with);
 643                 }
 644         }
 645
 646         sipe_dialog_free(dialog);
 647         return TRUE;
 648 }
 649
 650 /**
 651  * Invites counterparty to join conference.
 652  */
 653 void
 654 sipe_invite_conf(struct sipe_core_private *sipe_private,
 655                  struct sip_session *session,
 656                  const gchar* who)
 657 {
 658         gchar *hdr;
 659         gchar *contact;
 660         gchar *body;
 661         struct sip_dialog *dialog = NULL;
 662
 663         /* It will be short lived special dialog.
 664          * Will not be stored in session.
 665          */
 666         dialog = g_new0(struct sip_dialog, 1);
 667         dialog->callid = gencallid();
 668         dialog->with = g_strdup(who);
 669         dialog->ourtag = gentag();
 670
 671         contact = get_contact(sipe_private);
 672         hdr = g_strdup_printf(
 673                 "Supported: ms-sender\r\n"
 674                 "Contact: %s\r\n"
 675                 "Content-Type: application/ms-conf-invite+xml\r\n",
 676                 contact);
 677         g_free(contact);
 678
 679         body = g_strdup_printf(
 680                 SIPE_SEND_CONF_INVITE,
 681                 session->chat_session->id,
 682                 session->subject ? session->subject : ""
 683                 );
 684
 685         sip_transport_invite(sipe_private,
 686                              hdr,
 687                              body,
 688                              dialog,
 689                              process_invite_conf_response);
 690
 691         sipe_dialog_free(dialog);
 692         g_free(body);
 693         g_free(hdr);
 694 }
 695
 696 /** Create conference callback */
 697 static gboolean
 698 process_conf_add_response(struct sipe_core_private *sipe_private,
 699                           struct sipmsg *msg,
 700                           struct transaction *trans)
 701 {
 702         if (msg->response >= 400) {
 703                 SIPE_DEBUG_INFO_NOFORMAT("process_conf_add_response: SERVICE response is not 200. Failed to create conference.");
 704                 /* @TODO notify user of failure to create conference */
 705                 return FALSE;
 706         }
 707         if (msg->response == 200) {
 708                 sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
 709                 if (sipe_strequal("success", sipe_xml_attribute(xn_response, "code")))
 710                 {
 711                         gchar *who = trans->payload->data;
 712                         const sipe_xml *xn_conference_info = sipe_xml_child(xn_response, "addConference/conference-info");
 713                         struct sip_session *session = sipe_conf_create(sipe_private,
 714                                                                        NULL,
 715                                                                        sipe_xml_attribute(xn_conference_info,
 716                                                                                           "entity"));
 717
 718                         SIPE_DEBUG_INFO("process_conf_add_response: session->focus_uri=%s",
 719                                         session->chat_session->id);
 720
 721                         session->pending_invite_queue = sipe_utils_slist_insert_unique_sorted(session->pending_invite_queue,
 722                                                                                               g_strdup(who),
 723                                                                                               (GCompareFunc)strcmp,
 724                                                                                               g_free);
 725                 }
 726                 sipe_xml_free(xn_response);
 727         }
 728
 729         return TRUE;
 730 }
 731
 732 /**
 733  * Creates conference.
 734  */
 735 void
 736 sipe_conf_add(struct sipe_core_private *sipe_private,
 737               const gchar* who)
 738 {
 739         gchar *hdr;
 740         gchar *conference_id;
 741         gchar *contact;
 742         gchar *body;
 743         gchar *self;
 744         struct transaction *trans;
 745         struct sip_dialog *dialog = NULL;
 746         time_t expiry = time(NULL) + 7*60*60; /* 7 hours */
 747         char *expiry_time;
 748         struct transaction_payload *payload;
 749
 750         contact = get_contact(sipe_private);
 751         hdr = g_strdup_printf(
 752                 "Supported: ms-sender\r\n"
 753                 "Contact: %s\r\n"
 754                 "Content-Type: application/cccp+xml\r\n",
 755                 contact);
 756         g_free(contact);
 757
 758         expiry_time = sipe_utils_time_to_str(expiry);
 759         self = sip_uri_self(sipe_private);
 760         conference_id = genconfid();
 761         body = g_strdup_printf(
 762                 SIPE_SEND_CONF_ADD,
 763                 sipe_private->focus_factory_uri,
 764                 self,
 765                 rand(),
 766                 conference_id,
 767                 expiry_time);
 768         g_free(self);
 769         g_free(conference_id);
 770         g_free(expiry_time);
 771
 772         trans = sip_transport_service(sipe_private,
 773                                       sipe_private->focus_factory_uri,
 774                                       hdr,
 775                                       body,
 776                                       process_conf_add_response);
 777
 778         payload = g_new0(struct transaction_payload, 1);
 779         payload->destroy = g_free;
 780         payload->data = g_strdup(who);
 781         trans->payload = payload;
 782
 783         sipe_dialog_free(dialog);
 784         g_free(body);
 785         g_free(hdr);
 786 }
 787
 788 static void
 789 accept_incoming_invite_conf(struct sipe_core_private *sipe_private,
 790                             gchar *focus_uri,
 791                             gboolean audio,
 792                             struct sipmsg *msg)
 793 {
 794         struct sip_session *session;
 795         gchar *newTag = gentag();
 796         const gchar *oldHeader = sipmsg_find_header(msg, "To");
 797         gchar *newHeader;
 798
 799         newHeader = g_strdup_printf("%s;tag=%s", oldHeader, newTag);
 800         g_free(newTag);
 801         sipmsg_remove_header_now(msg, "To");
 802         sipmsg_add_header_now(msg, "To", newHeader);
 803         g_free(newHeader);
 804
 805         /* acknowledge invite */
 806         sip_transport_response(sipe_private, msg, 200, "OK", NULL);
 807
 808         /* add self to conf */
 809         session = sipe_conf_create(sipe_private, NULL, focus_uri);
 810         session->is_call = audio;
 811 }
 812
 813 struct conf_accept_ctx {
 814         gchar *focus_uri;
 815         struct sipmsg *msg;
 816         struct sipe_user_ask_ctx *ask_ctx;
 817 };
 818
 819 static void
 820 conf_accept_ctx_free(struct conf_accept_ctx *ctx)
 821 {
 822         g_return_if_fail(ctx != NULL);
 823
 824         sipmsg_free(ctx->msg);
 825         g_free(ctx->focus_uri);
 826         g_free(ctx);
 827 }
 828
 829 static void
 830 conf_accept_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 831 {
 832         sipe_private->sessions_to_accept =
 833                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 834
 835         accept_incoming_invite_conf(sipe_private, ctx->focus_uri, TRUE, ctx->msg);
 836         conf_accept_ctx_free(ctx);
 837 }
 838
 839 static void
 840 conf_decline_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 841 {
 842         sipe_private->sessions_to_accept =
 843                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 844
 845         sip_transport_response(sipe_private,
 846                                ctx->msg,
 847                                603, "Decline", NULL);
 848
 849         conf_accept_ctx_free(ctx);
 850 }
 851
 852 void
 853 sipe_conf_cancel_unaccepted(struct sipe_core_private *sipe_private,
 854                             struct sipmsg *msg)
 855 {
 856         const gchar *callid1 = msg ? sipmsg_find_header(msg, "Call-ID") : NULL;
 857         GSList *it = sipe_private->sessions_to_accept;
 858         while (it) {
 859                 struct conf_accept_ctx *ctx = it->data;
 860                 const gchar *callid2 = NULL;
 861
 862                 if (msg && ctx->msg)
 863                         callid2 = sipmsg_find_header(ctx->msg, "Call-ID");
 864
 865                 if (sipe_strequal(callid1, callid2)) {
 866                         GSList *tmp;
 867
 868                         if (ctx->msg)
 869                                 sip_transport_response(sipe_private, ctx->msg,
 870                                                        487, "Request Terminated", NULL);
 871
 872                         if (msg)
 873                                 sip_transport_response(sipe_private, msg, 200, "OK", NULL);
 874
 875                         sipe_user_close_ask(ctx->ask_ctx);
 876                         conf_accept_ctx_free(ctx);
 877
 878                         tmp = it;
 879                         it = it->next;
 880
 881                         sipe_private->sessions_to_accept =
 882                                 g_slist_delete_link(sipe_private->sessions_to_accept, tmp);
 883
 884                         if (callid1)
 885                                 break;
 886                 } else
 887                         it = it->next;
 888         }
 889 }
 890
 891 static void
 892 ask_accept_voice_conference(struct sipe_core_private *sipe_private,
 893                             const gchar *focus_uri,
 894                             struct sipmsg *msg,
 895                             SipeUserAskCb accept_cb,
 896                             SipeUserAskCb decline_cb)
 897 {
 898         gchar **parts;
 899         gchar *alias;
 900         gchar *ask_msg;
 901         const gchar *novv_note;
 902         struct conf_accept_ctx *ctx;
 903
 904 #ifdef HAVE_VV
 905         novv_note = "";
 906 #else
 907         novv_note = _("\n\nAs this client was not compiled with voice call "
 908                       "support, if you accept, you will be able to contact "
 909                       "the other participants only via IM session.");
 910 #endif
 911
 912         parts = g_strsplit(focus_uri, ";", 2);
 913         alias = sipe_buddy_get_alias(sipe_private, parts[0]);
 914
 915         ask_msg = g_strdup_printf(_("%s wants to invite you "
 916                                   "to the conference call%s"),
 917                                   alias ? alias : parts[0], novv_note);
 918
 919         g_free(alias);
 920         g_strfreev(parts);
 921
 922         ctx = g_new0(struct conf_accept_ctx, 1);
 923         sipe_private->sessions_to_accept =
 924                         g_slist_append(sipe_private->sessions_to_accept, ctx);
 925
 926         ctx->focus_uri = g_strdup(focus_uri);
 927         ctx->msg = msg ? sipmsg_copy(msg) : NULL;
 928         ctx->ask_ctx = sipe_user_ask(sipe_private, ask_msg,
 929                                      _("Accept"), accept_cb,
 930                                      _("Decline"), decline_cb,
 931                                      ctx);
 932
 933         g_free(ask_msg);
 934 }
 935
 936 void
 937 process_incoming_invite_conf(struct sipe_core_private *sipe_private,
 938                              struct sipmsg *msg)
 939 {
 940         sipe_xml *xn_conferencing = sipe_xml_parse(msg->body, msg->bodylen);
 941         const sipe_xml *xn_focus_uri = sipe_xml_child(xn_conferencing, "focus-uri");
 942         const sipe_xml *xn_audio = sipe_xml_child(xn_conferencing, "audio");
 943         gchar *focus_uri = sipe_xml_data(xn_focus_uri);
 944         gboolean audio = sipe_strequal(sipe_xml_attribute(xn_audio, "available"), "true");
 945
 946         sipe_xml_free(xn_conferencing);
 947
 948         SIPE_DEBUG_INFO("We have received invitation to Conference. Focus URI=%s", focus_uri);
 949
 950         if (audio) {
 951                 sip_transport_response(sipe_private, msg, 180, "Ringing", NULL);
 952                 ask_accept_voice_conference(sipe_private, focus_uri, msg,
 953                                             (SipeUserAskCb) conf_accept_cb,
 954                                             (SipeUserAskCb) conf_decline_cb);
 955
 956         } else {
 957                 accept_incoming_invite_conf(sipe_private, focus_uri, FALSE, msg);
 958         }
 959
 960         g_free(focus_uri);
 961 }
 962
 963 #ifdef HAVE_VV
 964
 965 static void
 966 call_accept_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 967 {
 968         struct sip_session *session;
 969         session = sipe_session_find_conference(sipe_private, ctx->focus_uri);
 970
 971         sipe_private->sessions_to_accept =
 972                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 973
 974         if (session) {
 975                 sipe_core_media_connect_conference(SIPE_CORE_PUBLIC,
 976                                                    session->chat_session);
 977         }
 978
 979         conf_accept_ctx_free(ctx);
 980 }
 981
 982 static void
 983 call_decline_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 984 {
 985         sipe_private->sessions_to_accept =
 986                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 987
 988         conf_accept_ctx_free(ctx);
 989 }
 990
 991 #endif // HAVE_VV
 992
 993 void
 994 sipe_process_conference(struct sipe_core_private *sipe_private,
 995                         struct sipmsg *msg)
 996 {
 997         sipe_xml *xn_conference_info;
 998         const sipe_xml *node;
 999         const sipe_xml *xn_subject;
1000         const gchar *focus_uri;
1001         struct sip_session *session;
1002         gboolean just_joined = FALSE;
1003 #ifdef HAVE_VV
1004         gboolean audio_was_added = FALSE;
1005 #endif
1006
1007         if (msg->response != 0 && msg->response != 200) return;
1008
1009         if (msg->bodylen == 0 || msg->body == NULL || !sipe_strequal(sipmsg_find_header(msg, "Event"), "conference")) return;
1010
1011         xn_conference_info = sipe_xml_parse(msg->body, msg->bodylen);
1012         if (!xn_conference_info) return;
1013
1014         focus_uri = sipe_xml_attribute(xn_conference_info, "entity");
1015         session = sipe_session_find_conference(sipe_private, focus_uri);
1016
1017         if (!session) {
1018                 SIPE_DEBUG_INFO("sipe_process_conference: unable to find conf session with focus=%s", focus_uri);
1019                 return;
1020         }
1021
1022         if (!session->chat_session->backend) {
1023                 gchar *self = sip_uri_self(sipe_private);
1024
1025                 /* create chat */
1026                 session->chat_session->backend = sipe_backend_chat_create(SIPE_CORE_PUBLIC,
1027                                                                           session->chat_session,
1028                                                                           session->chat_session->title,
1029                                                                           self);
1030                 just_joined = TRUE;
1031                 /* @TODO ask for full state (re-subscribe) if it was a partial one -
1032                  * this is to obtain full list of conference participants.
1033                  */
1034                  g_free(self);
1035         }
1036
1037         /* subject */
1038         if ((xn_subject = sipe_xml_child(xn_conference_info, "conference-description/subject"))) {
1039                 g_free(session->subject);
1040                 session->subject = sipe_xml_data(xn_subject);
1041                 sipe_backend_chat_topic(session->chat_session->backend, session->subject);
1042                 SIPE_DEBUG_INFO("sipe_process_conference: subject=%s", session->subject ? session->subject : "");
1043         }
1044
1045         /* IM MCU URI */
1046         if (!session->im_mcu_uri) {
1047                 for (node = sipe_xml_child(xn_conference_info, "conference-description/conf-uris/entry");
1048                      node;
1049                      node = sipe_xml_twin(node))
1050                 {
1051                         gchar *purpose = sipe_xml_data(sipe_xml_child(node, "purpose"));
1052
1053                         if (sipe_strequal("chat", purpose)) {
1054                                 g_free(purpose);
1055                                 session->im_mcu_uri = sipe_xml_data(sipe_xml_child(node, "uri"));
1056                                 SIPE_DEBUG_INFO("sipe_process_conference: im_mcu_uri=%s", session->im_mcu_uri);
1057                                 break;
1058                         }
1059                         g_free(purpose);
1060                 }
1061         }
1062
1063         /* users */
1064         for (node = sipe_xml_child(xn_conference_info, "users/user"); node; node = sipe_xml_twin(node)) {
1065                 const gchar *user_uri = sipe_xml_attribute(node, "entity");
1066                 const gchar *state = sipe_xml_attribute(node, "state");
1067                 gchar *role = sipe_xml_data(sipe_xml_child(node, "roles/entry"));
1068                 gboolean is_operator = sipe_strequal(role, "presenter");
1069                 gboolean is_in_im_mcu = FALSE;
1070                 gchar *self = sip_uri_self(sipe_private);
1071
1072                 if (sipe_strequal("deleted", state)) {
1073                         if (sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1074                                 sipe_backend_chat_remove(session->chat_session->backend,
1075                                                          user_uri);
1076                         }
1077                 } else {
1078                         /* endpoints */
1079                         const sipe_xml *endpoint;
1080                         for (endpoint = sipe_xml_child(node, "endpoint"); endpoint; endpoint = sipe_xml_twin(endpoint)) {
1081                                 const gchar *session_type;
1082                                 gchar *status = sipe_xml_data(sipe_xml_child(endpoint, "status"));
1083                                 gboolean connected = sipe_strequal("connected", status);
1084                                 g_free(status);
1085
1086                                 if (!connected)
1087                                         continue;
1088
1089                                 session_type = sipe_xml_attribute(endpoint, "session-type");
1090
1091                                 if (sipe_strequal("chat", session_type)) {
1092                                         is_in_im_mcu = TRUE;
1093                                         if (!sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1094                                                 sipe_backend_chat_add(session->chat_session->backend,
1095                                                                       user_uri,
1096                                                                       !just_joined && g_ascii_strcasecmp(user_uri, self));
1097                                         }
1098                                         if (is_operator) {
1099                                                 sipe_backend_chat_operator(session->chat_session->backend,
1100                                                                            user_uri);
1101                                         }
1102                                 } else if (sipe_strequal("audio-video", session_type)) {
1103 #ifdef HAVE_VV
1104                                         if (!session->is_call)
1105                                                 audio_was_added = TRUE;
1106 #endif
1107                                 }
1108                         }
1109                         if (!is_in_im_mcu) {
1110                                 if (sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1111                                         sipe_backend_chat_remove(session->chat_session->backend,
1112                                                                  user_uri);
1113                                 }
1114                         }
1115                 }
1116                 g_free(role);
1117                 g_free(self);
1118         }
1119
1120 #ifdef HAVE_VV
1121         if (audio_was_added) {
1122                 session->is_call = TRUE;
1123                 ask_accept_voice_conference(sipe_private, focus_uri, NULL,
1124                                             (SipeUserAskCb) call_accept_cb,
1125                                             (SipeUserAskCb) call_decline_cb);
1126         }
1127 #endif
1128
1129         /* entity-view, locked */
1130         for (node = sipe_xml_child(xn_conference_info, "conference-view/entity-view");
1131              node;
1132              node = sipe_xml_twin(node)) {
1133
1134                 const sipe_xml *xn_type = sipe_xml_child(node, "entity-state/media/entry/type");
1135                 gchar *tmp = NULL;
1136                 if (xn_type && sipe_strequal("chat", (tmp = sipe_xml_data(xn_type)))) {
1137                         const sipe_xml *xn_locked = sipe_xml_child(node, "entity-state/locked");
1138                         if (xn_locked) {
1139                                 gchar *locked = sipe_xml_data(xn_locked);
1140                                 gboolean prev_locked = session->locked;
1141                                 session->locked = sipe_strequal(locked, "true");
1142                                 if (prev_locked && !session->locked) {
1143                                         sipe_user_present_info(sipe_private, session,
1144                                                                _("This conference is no longer locked. Additional participants can now join."));
1145                                 }
1146                                 if (!prev_locked && session->locked) {
1147                                         sipe_user_present_info(sipe_private, session,
1148                                                                _("This conference is locked. Nobody else can join the conference while it is locked."));
1149                                 }
1150
1151                                 SIPE_DEBUG_INFO("sipe_process_conference: session->locked=%s",
1152                                                 session->locked ? "TRUE" : "FALSE");
1153                                 g_free(locked);
1154                         }
1155                 }
1156                 g_free(tmp);
1157         }
1158         sipe_xml_free(xn_conference_info);
1159
1160         if (session->im_mcu_uri) {
1161                 struct sip_dialog *dialog = sipe_dialog_find(session, session->im_mcu_uri);
1162                 if (!dialog) {
1163                         dialog = sipe_dialog_add(session);
1164
1165                         dialog->callid = g_strdup(session->callid);
1166                         dialog->with = g_strdup(session->im_mcu_uri);
1167
1168                         /* send INVITE to IM MCU */
1169                         sipe_im_invite(sipe_private, session, dialog->with, NULL, NULL, NULL, FALSE);
1170                 }
1171         }
1172
1173         sipe_process_pending_invite_queue(sipe_private, session);
1174 }
1175
1176 void
1177 sipe_conf_immcu_closed(struct sipe_core_private *sipe_private,
1178                        struct sip_session *session)
1179 {
1180         sipe_user_present_info(sipe_private, session,
1181                                _("You have been disconnected from this conference."));
1182         sipe_backend_chat_close(session->chat_session->backend);
1183 }
1184
1185 void
1186 conf_session_close(struct sipe_core_private *sipe_private,
1187                    struct sip_session *session)
1188 {
1189         if (session) {
1190                 /* unsubscribe from focus */
1191                 sipe_subscribe_conference(sipe_private,
1192                                           session->chat_session->id, TRUE);
1193
1194                 if (session->focus_dialog) {
1195                         /* send BYE to focus */
1196                         sip_transport_bye(sipe_private, session->focus_dialog);
1197                 }
1198         }
1199 }
1200
1201 void
1202 sipe_process_imdn(struct sipe_core_private *sipe_private,
1203                   struct sipmsg *msg)
1204 {
1205         gchar *with = parse_from(sipmsg_find_header(msg, "From"));
1206         const gchar *callid = sipmsg_find_header(msg, "Call-ID");
1207         static struct sip_session *session;
1208         sipe_xml *xn_imdn;
1209         const sipe_xml *node;
1210         gchar *message_id;
1211         gchar *message;
1212
1213         session = sipe_session_find_chat_or_im(sipe_private, callid, with);
1214         if (!session) {
1215                 SIPE_DEBUG_INFO("sipe_process_imdn: unable to find conf session with callid=%s", callid);
1216                 g_free(with);
1217                 return;
1218         }
1219
1220         xn_imdn = sipe_xml_parse(msg->body, msg->bodylen);
1221         message_id = sipe_xml_data(sipe_xml_child(xn_imdn, "message-id"));
1222
1223         message = g_hash_table_lookup(session->conf_unconfirmed_messages, message_id);
1224
1225         /* recipient */
1226         for (node = sipe_xml_child(xn_imdn, "recipient"); node; node = sipe_xml_twin(node)) {
1227                 gchar *tmp = parse_from(sipe_xml_attribute(node, "uri"));
1228                 gchar *uri = parse_from(tmp);
1229                 gchar *status = sipe_xml_data(sipe_xml_child(node, "status"));
1230                 guint error = status ? g_ascii_strtoull(status, NULL, 10) : 0;
1231                 /* default to error if missing or conversion failed */
1232                 if ((error == 0) || (error >= 300))
1233                         sipe_user_present_message_undelivered(sipe_private,
1234                                                               session,
1235                                                               error,
1236                                                               -1,
1237                                                               uri,
1238                                                               message);
1239                 g_free(status);
1240                 g_free(tmp);
1241                 g_free(uri);
1242         }
1243
1244         sipe_xml_free(xn_imdn);
1245
1246         g_hash_table_remove(session->conf_unconfirmed_messages, message_id);
1247         SIPE_DEBUG_INFO("sipe_process_imdn: removed message %s from conf_unconfirmed_messages(count=%d)",
1248                         message_id, g_hash_table_size(session->conf_unconfirmed_messages));
1249         g_free(message_id);
1250         g_free(with);
1251 }
1252
1253 void sipe_core_conf_make_leader(struct sipe_core_public *sipe_public,
1254                                 gpointer parameter,
1255                                 const gchar *buddy_name)
1256 {
1257         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
1258         struct sipe_chat_session *chat_session = parameter;
1259         struct sip_session *session;
1260
1261         SIPE_DEBUG_INFO("sipe_core_conf_make_leader: chat_title=%s",
1262                         chat_session->title);
1263
1264         session = sipe_session_find_chat(sipe_private, chat_session);
1265         sipe_conf_modify_user_role(sipe_private, session, buddy_name);
1266 }
1267
1268 void sipe_core_conf_remove_from(struct sipe_core_public *sipe_public,
1269                                 gpointer parameter,
1270                                 const gchar *buddy_name)
1271 {
1272         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
1273         struct sipe_chat_session *chat_session = parameter;
1274         struct sip_session *session;
1275
1276         SIPE_DEBUG_INFO("sipe_core_conf_remove_from: chat_title=%s",
1277                         chat_session->title);
1278
1279         session = sipe_session_find_chat(sipe_private, chat_session);
1280         sipe_conf_delete_user(sipe_private, session, buddy_name);
1281 }
1282
1283 /*
1284   Local Variables:
1285   mode: c
1286   c-file-style: "bsd"
1287   indent-tabs-mode: t
1288   tab-width: 8
1289   End:
1290 */