src/core/sipe-conf.c

   1 /**
   2  * @file sipe-conf.c
   3  *
   4  * pidgin-sipe
   5  *
   6  * Copyright (C) 2010-2015 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-http.h"
  55 #include "sipe-im.h"
  56 #include "sipe-nls.h"
  57 #include "sipe-session.h"
  58 #include "sipe-subscriptions.h"
  59 #include "sipe-user.h"
  60 #include "sipe-utils.h"
  61 #include "sipe-xml.h"
  62
  63 /**
  64  * Invite counterparty to join conference.
  65  * @param focus_uri (%s)
  66  * @param subject (%s) of conference
  67  */
  68 #define SIPE_SEND_CONF_INVITE \
  69 "<Conferencing version=\"2.0\">"\
  70         "<focus-uri>%s</focus-uri>"\
  71         "<subject>%s</subject>"\
  72         "<im available=\"true\">"\
  73                 "<first-im/>"\
  74         "</im>"\
  75 "</Conferencing>"
  76
  77 static struct transaction *
  78 cccp_request(struct sipe_core_private *sipe_private, const gchar *method,
  79              const gchar *with, struct sip_dialog *dialog,
  80              TransCallback callback, const gchar *body, ...)
  81 {
  82         gchar *headers;
  83         gchar *request;
  84         gchar *request_body;
  85
  86         gchar *self = sip_uri_self(sipe_private);
  87
  88         va_list args;
  89
  90         struct transaction *trans;
  91
  92         headers = g_strdup_printf(
  93                 "Supported: ms-sender\r\n"
  94                 "Contact: %s\r\n"
  95                 "Content-Type: application/cccp+xml\r\n",
  96                 sipe_private->contact);
  97
  98         /* TODO: put request_id to queue to further compare with incoming one */
  99         request = g_strdup_printf(
 100                 "<?xml version=\"1.0\"?>"
 101                 "<request xmlns=\"urn:ietf:params:xml:ns:cccp\" "
 102                 "xmlns:mscp=\"http://schemas.microsoft.com/rtc/2005/08/cccpextensions\" "
 103                         "C3PVersion=\"1\" "
 104                         "to=\"%s\" "
 105                         "from=\"%s\" "
 106                         "requestId=\"%d\">"
 107                         "%s"
 108                 "</request>",
 109                 with,
 110                 self,
 111                 sipe_private->cccp_request_id++,
 112                 body);
 113         g_free(self);
 114
 115         va_start(args, body);
 116         request_body = g_strdup_vprintf(request, args);
 117         va_end(args);
 118
 119         g_free(request);
 120
 121         trans = sip_transport_request(sipe_private,
 122                                       method,
 123                                       with,
 124                                       with,
 125                                       headers,
 126                                       request_body,
 127                                       dialog,
 128                                       callback);
 129
 130         g_free(headers);
 131         g_free(request_body);
 132
 133         return trans;
 134 }
 135
 136 static gboolean
 137 process_conf_get_capabilities(SIPE_UNUSED_PARAMETER struct sipe_core_private *sipe_private,
 138                               struct sipmsg *msg,
 139                               SIPE_UNUSED_PARAMETER struct transaction *trans)
 140 {
 141         if (msg->response >= 400) {
 142                 SIPE_DEBUG_INFO_NOFORMAT("process_conf_get_capabilities: "
 143                                 "getConferencingCapabilities failed.");
 144                 return FALSE;
 145         }
 146         if (msg->response == 200) {
 147                 sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
 148
 149                 if (sipe_strequal("success", sipe_xml_attribute(xn_response, "code"))) {
 150                         const sipe_xml *node = sipe_xml_child(xn_response, "getConferencingCapabilities/mcu-types/mcuType");
 151                         for (;node; node = sipe_xml_twin(node)) {
 152                                 sipe_private->conf_mcu_types =
 153                                                 g_slist_append(sipe_private->conf_mcu_types,
 154                                                                sipe_xml_data(node));
 155                         }
 156                 }
 157
 158                 sipe_xml_free(xn_response);
 159         }
 160
 161         return TRUE;
 162 }
 163
 164 void
 165 sipe_conf_get_capabilities(struct sipe_core_private *sipe_private)
 166 {
 167         cccp_request(sipe_private, "SERVICE",
 168                      sipe_private->focus_factory_uri,
 169                      NULL,
 170                      process_conf_get_capabilities,
 171                      "<getConferencingCapabilities />");
 172 }
 173
 174 gboolean
 175 sipe_conf_supports_mcu_type(struct sipe_core_private *sipe_private,
 176                             const gchar *type)
 177 {
 178         return g_slist_find_custom(sipe_private->conf_mcu_types, type,
 179                                    sipe_strcompare) != NULL;
 180 }
 181
 182 /**
 183  * Generates random GUID.
 184  * This method is borrowed from pidgin's msnutils.c
 185  */
 186 static char *
 187 rand_guid()
 188 {
 189         return g_strdup_printf("%4X%4X-%4X-%4X-%4X-%4X%4X%4X",
 190                         rand() % 0xAAFF + 0x1111,
 191                         rand() % 0xAAFF + 0x1111,
 192                         rand() % 0xAAFF + 0x1111,
 193                         rand() % 0xAAFF + 0x1111,
 194                         rand() % 0xAAFF + 0x1111,
 195                         rand() % 0xAAFF + 0x1111,
 196                         rand() % 0xAAFF + 0x1111,
 197                         rand() % 0xAAFF + 0x1111);
 198 }
 199
 200 /** Invite us to the focus callback */
 201 static gboolean
 202 process_invite_conf_focus_response(struct sipe_core_private *sipe_private,
 203                                    struct sipmsg *msg,
 204                                    SIPE_UNUSED_PARAMETER struct transaction *trans)
 205 {
 206         struct sip_session *session = NULL;
 207         char *focus_uri = parse_from(sipmsg_find_header(msg, "To"));
 208
 209         session = sipe_session_find_conference(sipe_private, focus_uri);
 210
 211         if (!session) {
 212                 SIPE_DEBUG_INFO("process_invite_conf_focus_response: unable to find conf session with focus=%s", focus_uri);
 213                 g_free(focus_uri);
 214                 return FALSE;
 215         }
 216
 217         if (!session->focus_dialog) {
 218                 SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: session's focus_dialog is NULL");
 219                 g_free(focus_uri);
 220                 return FALSE;
 221         }
 222
 223         sipe_dialog_parse(session->focus_dialog, msg, TRUE);
 224
 225         if (msg->response >= 200) {
 226                 /* send ACK to focus */
 227                 session->focus_dialog->cseq = 0;
 228                 sip_transport_ack(sipe_private, session->focus_dialog);
 229                 session->focus_dialog->outgoing_invite = NULL;
 230                 session->focus_dialog->is_established = TRUE;
 231         }
 232
 233         if (msg->response >= 400) {
 234                 gchar *reason = sipmsg_get_ms_diagnostics_reason(msg);
 235
 236                 SIPE_DEBUG_INFO_NOFORMAT("process_invite_conf_focus_response: INVITE response is not 200. Failed to join focus.");
 237                 sipe_backend_notify_error(SIPE_CORE_PUBLIC,
 238                                           _("Failed to join the conference"),
 239                                           reason ? reason : _("no reason given"));
 240                 g_free(reason);
 241
 242                 sipe_session_remove(sipe_private, session);
 243                 g_free(focus_uri);
 244                 return FALSE;
 245         } else if (msg->response == 200) {
 246                 sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
 247                 const gchar *code = sipe_xml_attribute(xn_response, "code");
 248                 if (sipe_strequal(code, "success")) {
 249                         /* subscribe to focus */
 250                         sipe_subscribe_conference(sipe_private,
 251                                                   session->chat_session->id,
 252                                                   FALSE);
 253 #ifdef HAVE_VV
 254                         if (session->is_call)
 255                                 sipe_core_media_connect_conference(SIPE_CORE_PUBLIC,
 256                                                                    session->chat_session);
 257 #endif
 258                 }
 259                 sipe_xml_free(xn_response);
 260         }
 261
 262         g_free(focus_uri);
 263         return TRUE;
 264 }
 265
 266 static gchar *
 267 parse_ocs_focus_uri(const gchar *uri)
 268 {
 269         const gchar *confkey;
 270         size_t uri_len;
 271
 272         if (!uri)
 273                 return NULL;
 274
 275         // URI can have this prefix if it was typed in by the user
 276         if (g_str_has_prefix(uri, "meet:") || g_str_has_prefix(uri, "conf:")) {
 277                 uri += 5;
 278         }
 279
 280         uri_len = strlen(uri);
 281
 282         if (!uri || !g_str_has_prefix(uri, "sip:") ||
 283                 uri_len == 4 || g_strstr_len(uri, -1, "%")) {
 284                 return NULL;
 285         }
 286
 287         confkey = g_strstr_len(uri, -1, "?");
 288         if (confkey) {
 289                 /* TODO: Investigate how conf-key field should be used,
 290                  * ignoring for now */
 291                 uri_len = confkey - uri;
 292         }
 293
 294         return g_strndup(uri, uri_len);
 295 }
 296
 297 static gchar *
 298 parse_lync_join_url(const gchar *uri)
 299 {
 300         gchar *focus_uri = NULL;
 301         gchar **parts;
 302         int parts_count = 0;
 303
 304         if (!uri)
 305                 return NULL;
 306
 307         if (g_str_has_prefix(uri, "https://")) {
 308                 uri += 8;
 309         } else if (g_str_has_prefix(uri, "http://")) {
 310                 uri += 7;
 311         }
 312
 313         parts = g_strsplit(uri, "/", 0);
 314
 315         for (parts_count = 0; parts[parts_count]; ++parts_count);
 316         if (parts_count >= 3) {
 317                 const gchar *conference_id   = parts[parts_count - 1];
 318                 const gchar *organizer_alias = parts[parts_count - 2];
 319
 320                 gchar **domain_parts = g_strsplit(parts[0], ".", 2);
 321
 322                 /* we need to drop the first sub-domain from the URL */
 323                 if (domain_parts[0] && domain_parts[1]) {
 324                         focus_uri = g_strdup_printf("sip:%s@%s;gruu;opaque=app:conf:focus:id:%s",
 325                                                     organizer_alias,
 326                                                     domain_parts[1],
 327                                                     conference_id);
 328                 }
 329
 330                 g_strfreev(domain_parts);
 331         }
 332
 333         g_strfreev(parts);
 334
 335         return focus_uri;
 336 }
 337
 338 static void sipe_conf_error(struct sipe_core_private *sipe_private,
 339                             const gchar *uri)
 340 {
 341         gchar *error = g_strdup_printf(_("\"%s\" is not a valid conference URI"),
 342                                        uri ? uri : "");
 343         sipe_backend_notify_error(SIPE_CORE_PUBLIC,
 344                                   _("Failed to join the conference"),
 345                                   error);
 346         g_free(error);
 347 }
 348
 349 static void sipe_conf_lync_url_cb(struct sipe_core_private *sipe_private,
 350                                   SIPE_UNUSED_PARAMETER guint status,
 351                                   SIPE_UNUSED_PARAMETER GSList *headers,
 352                                   SIPE_UNUSED_PARAMETER const gchar *body,
 353                                   gpointer callback_data)
 354 {
 355         gchar *uri       = callback_data;
 356         gchar *focus_uri = parse_lync_join_url(uri);
 357
 358         if (focus_uri) {
 359                 sipe_conf_create(sipe_private, NULL, focus_uri);
 360                 g_free(focus_uri);
 361         } else {
 362                 sipe_conf_error(sipe_private, uri);
 363         }
 364
 365         g_free(uri);
 366 }
 367
 368 static gboolean sipe_conf_check_for_lync_url(struct sipe_core_private *sipe_private,
 369                                              gchar *uri)
 370 {
 371         if (!(g_str_has_prefix(uri, "https://") ||
 372               g_str_has_prefix(uri, "http://")))
 373                 return(FALSE);
 374
 375         /* URL points to a HTML page with the conference focus URI */
 376         return(sipe_http_request_get(sipe_private,
 377                                      uri,
 378                                      NULL,
 379                                      sipe_conf_lync_url_cb,
 380                                      uri)
 381                != NULL);
 382 }
 383
 384 void sipe_core_conf_create(struct sipe_core_public *sipe_public,
 385                            const gchar *uri)
 386 {
 387         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
 388         gchar *uri_ue = sipe_utils_uri_unescape(uri);
 389
 390         SIPE_DEBUG_INFO("sipe_core_conf_create: URI '%s' unescaped '%s'",
 391                         uri    ? uri    : "<UNDEFINED>",
 392                         uri_ue ? uri_ue : "<UNDEFINED>");
 393
 394         /* takes ownership of "uri_ue" if successful */
 395         if (!sipe_conf_check_for_lync_url(sipe_private, uri_ue)) {
 396                 gchar *focus_uri = parse_ocs_focus_uri(uri_ue);
 397
 398                 if (focus_uri) {
 399                         sipe_conf_create(sipe_private, NULL, focus_uri);
 400                         g_free(focus_uri);
 401                 } else {
 402                         sipe_conf_error(sipe_private, uri);
 403                 }
 404
 405                 g_free(uri_ue);
 406         }
 407 }
 408
 409 /** Create new session with Focus URI */
 410 struct sip_session *
 411 sipe_conf_create(struct sipe_core_private *sipe_private,
 412                  struct sipe_chat_session *chat_session,
 413                  const gchar *focus_uri)
 414 {
 415         /* addUser request to the focus.
 416          *
 417          * focus_URI, from, endpoint_GUID
 418          */
 419         static const gchar CCCP_ADD_USER[] =
 420                 "<addUser>"
 421                         "<conferenceKeys confEntity=\"%s\"/>"
 422                         "<ci:user xmlns:ci=\"urn:ietf:params:xml:ns:conference-info\" entity=\"%s\">"
 423                                 "<ci:roles>"
 424                                         "<ci:entry>attendee</ci:entry>"
 425                                 "</ci:roles>"
 426                                 "<ci:endpoint entity=\"{%s}\" "
 427                                               "xmlns:msci=\"http://schemas.microsoft.com/rtc/2005/08/confinfoextensions\"/>"
 428                         "</ci:user>"
 429                 "</addUser>";
 430
 431         gchar *self;
 432         struct sip_session *session = sipe_session_add_chat(sipe_private,
 433                                                             chat_session,
 434                                                             FALSE,
 435                                                             focus_uri);
 436
 437         session->focus_dialog = g_new0(struct sip_dialog, 1);
 438         session->focus_dialog->callid = gencallid();
 439         session->focus_dialog->with = g_strdup(session->chat_session->id);
 440         session->focus_dialog->endpoint_GUID = rand_guid();
 441         session->focus_dialog->ourtag = gentag();
 442
 443         self = sip_uri_self(sipe_private);
 444         session->focus_dialog->outgoing_invite =
 445                 cccp_request(sipe_private, "INVITE",
 446                              session->focus_dialog->with, session->focus_dialog,
 447                              process_invite_conf_focus_response,
 448                              CCCP_ADD_USER,
 449                              session->focus_dialog->with, self,
 450                              session->focus_dialog->endpoint_GUID);
 451
 452         /* Rejoin existing session? */
 453         if (chat_session) {
 454                 SIPE_DEBUG_INFO("sipe_conf_create: rejoin '%s' (%s)",
 455                                 chat_session->title,
 456                                 chat_session->id);
 457                 sipe_backend_chat_rejoin(SIPE_CORE_PUBLIC,
 458                                          chat_session->backend,
 459                                          self,
 460                                          chat_session->title);
 461         }
 462         g_free(self);
 463
 464         return(session);
 465 }
 466
 467 /** Modify User Role */
 468 void
 469 sipe_conf_modify_user_role(struct sipe_core_private *sipe_private,
 470                            struct sip_session *session,
 471                            const gchar* who)
 472 {
 473         /* modifyUserRoles request to the focus. Makes user a leader.
 474          *
 475          * focus_uri (%s)
 476          * who (%s)
 477          */
 478         static const gchar CCCP_MODIFY_USER_ROLES[] =
 479                 "<modifyUserRoles>"
 480                         "<userKeys confEntity=\"%s\" userEntity=\"%s\"/>"
 481                         "<user-roles xmlns=\"urn:ietf:params:xml:ns:conference-info\">"
 482                                 "<entry>presenter</entry>"
 483                         "</user-roles>"
 484                 "</modifyUserRoles>";
 485
 486         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 487                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_modify_user_role: no dialog with focus, exiting.");
 488                 return;
 489         }
 490
 491         cccp_request(sipe_private, "INFO", session->focus_dialog->with,
 492                      session->focus_dialog, NULL,
 493                      CCCP_MODIFY_USER_ROLES,
 494                      session->focus_dialog->with, who);
 495 }
 496
 497 /**
 498  * Check conference lock status
 499  */
 500 sipe_chat_lock_status sipe_core_chat_lock_status(struct sipe_core_public *sipe_public,
 501                                                  struct sipe_chat_session *chat_session)
 502 {
 503         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
 504         sipe_chat_lock_status status = SIPE_CHAT_LOCK_STATUS_NOT_ALLOWED;
 505
 506         if (chat_session &&
 507             (chat_session->type == SIPE_CHAT_TYPE_CONFERENCE)) {
 508                 struct sip_session *session = sipe_session_find_chat(sipe_private,
 509                                                                      chat_session);
 510                 if (session) {
 511                         gchar *self = sip_uri_self(sipe_private);
 512
 513                         /* Only operators are allowed to change the lock status */
 514                         if (sipe_backend_chat_is_operator(chat_session->backend, self)) {
 515                                 status = session->locked ?
 516                                         SIPE_CHAT_LOCK_STATUS_LOCKED :
 517                                         SIPE_CHAT_LOCK_STATUS_UNLOCKED;
 518                         }
 519
 520                         g_free(self);
 521                 }
 522         }
 523
 524         return(status);
 525 }
 526
 527 /**
 528  * Modify Conference Lock
 529  * Sends request to Focus.
 530  * INFO method is a carrier of application/cccp+xml
 531  */
 532 void
 533 sipe_core_chat_modify_lock(struct sipe_core_public *sipe_public,
 534                            struct sipe_chat_session *chat_session,
 535                            const gboolean locked)
 536 {
 537         /* modifyConferenceLock request to the focus. Locks/unlocks conference.
 538          *
 539          * focus_uri (%s)
 540          * locked (%s) "true" or "false" values applicable
 541          */
 542         static const gchar CCCP_MODIFY_CONFERENCE_LOCK[] =
 543                 "<modifyConferenceLock>"
 544                         "<conferenceKeys confEntity=\"%s\"/>"
 545                         "<locked>%s</locked>"
 546                 "</modifyConferenceLock>";
 547
 548         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
 549
 550         struct sip_session *session = sipe_session_find_chat(sipe_private,
 551                                                              chat_session);
 552
 553         if (!session) return;
 554         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 555                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_modify_conference_lock: no dialog with focus, exiting.");
 556                 return;
 557         }
 558
 559         cccp_request(sipe_private, "INFO", session->focus_dialog->with,
 560                      session->focus_dialog, NULL,
 561                      CCCP_MODIFY_CONFERENCE_LOCK,
 562                      session->focus_dialog->with,
 563                      locked ? "true" : "false");
 564 }
 565
 566 /** Modify Delete User */
 567 void
 568 sipe_conf_delete_user(struct sipe_core_private *sipe_private,
 569                       struct sip_session *session,
 570                       const gchar* who)
 571 {
 572         /* deleteUser request to the focus. Removes a user from the conference.
 573          *
 574          * focus_uri (%s)
 575          * who (%s)
 576          */
 577         static const gchar CCCP_DELETE_USER[] =
 578                 "<deleteUser>"
 579                         "<userKeys confEntity=\"%s\" userEntity=\"%s\"/>"
 580                 "</deleteUser>";
 581
 582         if (!session->focus_dialog || !session->focus_dialog->is_established) {
 583                 SIPE_DEBUG_INFO_NOFORMAT("sipe_conf_delete_user: no dialog with focus, exiting.");
 584                 return;
 585         }
 586
 587         cccp_request(sipe_private, "INFO", session->focus_dialog->with,
 588                      session->focus_dialog, NULL,
 589                      CCCP_DELETE_USER,
 590                      session->focus_dialog->with, who);
 591 }
 592
 593 /** Invite counterparty to join conference callback */
 594 static gboolean
 595 process_invite_conf_response(struct sipe_core_private *sipe_private,
 596                              struct sipmsg *msg,
 597                              SIPE_UNUSED_PARAMETER struct transaction *trans)
 598 {
 599         struct sip_dialog *dialog = g_new0(struct sip_dialog, 1);
 600
 601         dialog->callid = g_strdup(sipmsg_find_header(msg, "Call-ID"));
 602         dialog->cseq = sipmsg_parse_cseq(msg);
 603         dialog->with = parse_from(sipmsg_find_header(msg, "To"));
 604         sipe_dialog_parse(dialog, msg, TRUE);
 605
 606         if (msg->response >= 200) {
 607                 /* send ACK to counterparty */
 608                 dialog->cseq--;
 609                 sip_transport_ack(sipe_private, dialog);
 610                 dialog->outgoing_invite = NULL;
 611                 dialog->is_established = TRUE;
 612         }
 613
 614         if (msg->response >= 400) {
 615                 SIPE_DEBUG_INFO("process_invite_conf_response: INVITE response is not 200. Failed to invite %s.", dialog->with);
 616                 /* @TODO notify user of failure to invite counterparty */
 617                 sipe_dialog_free(dialog);
 618                 return FALSE;
 619         }
 620
 621         if (msg->response >= 200) {
 622                 struct sip_session *session = sipe_session_find_im(sipe_private, dialog->with);
 623                 struct sip_dialog *im_dialog = sipe_dialog_find(session, dialog->with);
 624
 625                 /* close IM session to counterparty */
 626                 if (im_dialog) {
 627                         sip_transport_bye(sipe_private, im_dialog);
 628                         sipe_dialog_remove(session, dialog->with);
 629                 }
 630         }
 631
 632         sipe_dialog_free(dialog);
 633         return TRUE;
 634 }
 635
 636 /**
 637  * Invites counterparty to join conference.
 638  */
 639 void
 640 sipe_invite_conf(struct sipe_core_private *sipe_private,
 641                  struct sip_session *session,
 642                  const gchar* who)
 643 {
 644         gchar *hdr;
 645         gchar *contact;
 646         gchar *body;
 647         struct sip_dialog *dialog = NULL;
 648
 649         /* It will be short lived special dialog.
 650          * Will not be stored in session.
 651          */
 652         dialog = g_new0(struct sip_dialog, 1);
 653         dialog->callid = gencallid();
 654         dialog->with = g_strdup(who);
 655         dialog->ourtag = gentag();
 656
 657         contact = get_contact(sipe_private);
 658         hdr = g_strdup_printf(
 659                 "Supported: ms-sender\r\n"
 660                 "Contact: %s\r\n"
 661                 "Content-Type: application/ms-conf-invite+xml\r\n",
 662                 contact);
 663         g_free(contact);
 664
 665         body = g_strdup_printf(
 666                 SIPE_SEND_CONF_INVITE,
 667                 session->chat_session->id,
 668                 session->subject ? session->subject : ""
 669                 );
 670
 671         sip_transport_invite(sipe_private,
 672                              hdr,
 673                              body,
 674                              dialog,
 675                              process_invite_conf_response);
 676
 677         sipe_dialog_free(dialog);
 678         g_free(body);
 679         g_free(hdr);
 680 }
 681
 682 /** Create conference callback */
 683 static gboolean
 684 process_conf_add_response(struct sipe_core_private *sipe_private,
 685                           struct sipmsg *msg,
 686                           struct transaction *trans)
 687 {
 688         if (msg->response >= 400) {
 689                 SIPE_DEBUG_INFO_NOFORMAT("process_conf_add_response: SERVICE response is not 200. Failed to create conference.");
 690                 /* @TODO notify user of failure to create conference */
 691                 return FALSE;
 692         }
 693         if (msg->response == 200) {
 694                 sipe_xml *xn_response = sipe_xml_parse(msg->body, msg->bodylen);
 695                 if (sipe_strequal("success", sipe_xml_attribute(xn_response, "code")))
 696                 {
 697                         gchar *who = trans->payload->data;
 698                         const sipe_xml *xn_conference_info = sipe_xml_child(xn_response, "addConference/conference-info");
 699                         struct sip_session *session = sipe_conf_create(sipe_private,
 700                                                                        NULL,
 701                                                                        sipe_xml_attribute(xn_conference_info,
 702                                                                                           "entity"));
 703
 704                         SIPE_DEBUG_INFO("process_conf_add_response: session->focus_uri=%s",
 705                                         session->chat_session->id);
 706
 707                         session->pending_invite_queue = sipe_utils_slist_insert_unique_sorted(session->pending_invite_queue,
 708                                                                                               g_strdup(who),
 709                                                                                               (GCompareFunc)strcmp,
 710                                                                                               g_free);
 711                 }
 712                 sipe_xml_free(xn_response);
 713         }
 714
 715         return TRUE;
 716 }
 717
 718 /**
 719  * Creates conference.
 720  */
 721 void
 722 sipe_conf_add(struct sipe_core_private *sipe_private,
 723               const gchar* who)
 724 {
 725         gchar *conference_id;
 726         struct transaction *trans;
 727         time_t expiry = time(NULL) + 7*60*60; /* 7 hours */
 728         char *expiry_time;
 729         struct transaction_payload *payload;
 730
 731         /* addConference request to the focus factory.
 732          *
 733          * conference_id        (%s) Ex.: 8386E6AEAAA41E4AA6627BA76D43B6D1
 734          * expiry_time          (%s) Ex.: 2009-07-13T17:57:09Z
 735          * conference_view      (%s) Ex.: <msci:entity-view entity="chat"/>
 736          */
 737         static const gchar CCCP_ADD_CONFERENCE[] =
 738                 "<addConference>"
 739                         "<ci:conference-info xmlns:ci=\"urn:ietf:params:xml:ns:conference-info\" "
 740                                              "entity=\"\" "
 741                                              "xmlns:msci=\"http://schemas.microsoft.com/rtc/2005/08/confinfoextensions\">"
 742                                 "<ci:conference-description>"
 743                                         "<ci:subject/>"
 744                                         "<msci:conference-id>%s</msci:conference-id>"
 745                                         "<msci:expiry-time>%s</msci:expiry-time>"
 746                                         "<msci:admission-policy>openAuthenticated</msci:admission-policy>"
 747                                 "</ci:conference-description>"
 748                                 "<msci:conference-view>%s</msci:conference-view>"
 749                         "</ci:conference-info>"
 750                 "</addConference>";
 751
 752         static const gchar *DESIRED_MCU_TYPES[] = {
 753                 "chat",
 754 #ifdef HAVE_VV
 755                 "audio-video",
 756 #endif
 757                 NULL
 758         };
 759
 760         GString *conference_view = g_string_new("");
 761         const gchar **type;
 762
 763         for (type = DESIRED_MCU_TYPES; *type; ++type ) {
 764                 if (sipe_conf_supports_mcu_type(sipe_private, *type)) {
 765                         g_string_append(conference_view, "<msci:entity-view entity=\"");
 766                         g_string_append(conference_view, *type);
 767                         g_string_append(conference_view, "\"/>");
 768                 }
 769         }
 770
 771         expiry_time = sipe_utils_time_to_str(expiry);
 772         conference_id = genconfid();
 773         trans = cccp_request(sipe_private, "SERVICE", sipe_private->focus_factory_uri,
 774                              NULL, process_conf_add_response,
 775                              CCCP_ADD_CONFERENCE,
 776                              conference_id, expiry_time, conference_view->str);
 777         g_free(conference_id);
 778         g_free(expiry_time);
 779         g_string_free(conference_view, TRUE);
 780
 781         payload = g_new0(struct transaction_payload, 1);
 782         payload->destroy = g_free;
 783         payload->data = g_strdup(who);
 784         trans->payload = payload;
 785 }
 786
 787 static void
 788 accept_incoming_invite_conf(struct sipe_core_private *sipe_private,
 789                             gchar *focus_uri,
 790                             gboolean audio,
 791                             struct sipmsg *msg)
 792 {
 793         struct sip_session *session;
 794         gchar *newTag = gentag();
 795         const gchar *oldHeader = sipmsg_find_header(msg, "To");
 796         gchar *newHeader;
 797
 798         newHeader = g_strdup_printf("%s;tag=%s", oldHeader, newTag);
 799         g_free(newTag);
 800         sipmsg_remove_header_now(msg, "To");
 801         sipmsg_add_header_now(msg, "To", newHeader);
 802         g_free(newHeader);
 803
 804         /* acknowledge invite */
 805         sip_transport_response(sipe_private, msg, 200, "OK", NULL);
 806
 807         /* add self to conf */
 808         session = sipe_conf_create(sipe_private, NULL, focus_uri);
 809         session->is_call = audio;
 810 }
 811
 812 struct conf_accept_ctx {
 813         gchar *focus_uri;
 814         struct sipmsg *msg;
 815         struct sipe_user_ask_ctx *ask_ctx;
 816 };
 817
 818 static void
 819 conf_accept_ctx_free(struct conf_accept_ctx *ctx)
 820 {
 821         g_return_if_fail(ctx != NULL);
 822
 823         sipmsg_free(ctx->msg);
 824         g_free(ctx->focus_uri);
 825         g_free(ctx);
 826 }
 827
 828 static void
 829 conf_accept_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 830 {
 831         sipe_private->sessions_to_accept =
 832                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 833
 834         accept_incoming_invite_conf(sipe_private, ctx->focus_uri, TRUE, ctx->msg);
 835         conf_accept_ctx_free(ctx);
 836 }
 837
 838 static void
 839 conf_decline_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 840 {
 841         sipe_private->sessions_to_accept =
 842                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 843
 844         sip_transport_response(sipe_private,
 845                                ctx->msg,
 846                                603, "Decline", NULL);
 847
 848         conf_accept_ctx_free(ctx);
 849 }
 850
 851 void
 852 sipe_conf_cancel_unaccepted(struct sipe_core_private *sipe_private,
 853                             struct sipmsg *msg)
 854 {
 855         const gchar *callid1 = msg ? sipmsg_find_header(msg, "Call-ID") : NULL;
 856         GSList *it = sipe_private->sessions_to_accept;
 857         while (it) {
 858                 struct conf_accept_ctx *ctx = it->data;
 859                 const gchar *callid2 = NULL;
 860
 861                 if (msg && ctx->msg)
 862                         callid2 = sipmsg_find_header(ctx->msg, "Call-ID");
 863
 864                 if (sipe_strequal(callid1, callid2)) {
 865                         GSList *tmp;
 866
 867                         if (ctx->msg)
 868                                 sip_transport_response(sipe_private, ctx->msg,
 869                                                        487, "Request Terminated", NULL);
 870
 871                         if (msg)
 872                                 sip_transport_response(sipe_private, msg, 200, "OK", NULL);
 873
 874                         sipe_user_close_ask(ctx->ask_ctx);
 875                         conf_accept_ctx_free(ctx);
 876
 877                         tmp = it;
 878                         it = it->next;
 879
 880                         sipe_private->sessions_to_accept =
 881                                 g_slist_delete_link(sipe_private->sessions_to_accept, tmp);
 882
 883                         if (callid1)
 884                                 break;
 885                 } else
 886                         it = it->next;
 887         }
 888 }
 889
 890 static void
 891 ask_accept_voice_conference(struct sipe_core_private *sipe_private,
 892                             const gchar *focus_uri,
 893                             struct sipmsg *msg,
 894                             SipeUserAskCb accept_cb,
 895                             SipeUserAskCb decline_cb)
 896 {
 897         gchar **parts;
 898         gchar *alias;
 899         gchar *ask_msg;
 900         const gchar *novv_note;
 901         struct conf_accept_ctx *ctx;
 902
 903 #ifdef HAVE_VV
 904         novv_note = "";
 905 #else
 906         novv_note = _("\n\nAs this client was not compiled with voice call "
 907                       "support, if you accept, you will be able to contact "
 908                       "the other participants only via IM session.");
 909 #endif
 910
 911         parts = g_strsplit(focus_uri, ";", 2);
 912         alias = sipe_buddy_get_alias(sipe_private, parts[0]);
 913
 914         ask_msg = g_strdup_printf(_("%s wants to invite you "
 915                                   "to the conference call%s"),
 916                                   alias ? alias : parts[0], novv_note);
 917
 918         g_free(alias);
 919         g_strfreev(parts);
 920
 921         ctx = g_new0(struct conf_accept_ctx, 1);
 922         sipe_private->sessions_to_accept =
 923                         g_slist_append(sipe_private->sessions_to_accept, ctx);
 924
 925         ctx->focus_uri = g_strdup(focus_uri);
 926         ctx->msg = msg ? sipmsg_copy(msg) : NULL;
 927         ctx->ask_ctx = sipe_user_ask(sipe_private, ask_msg,
 928                                      _("Accept"), accept_cb,
 929                                      _("Decline"), decline_cb,
 930                                      ctx);
 931
 932         g_free(ask_msg);
 933 }
 934
 935 void
 936 process_incoming_invite_conf(struct sipe_core_private *sipe_private,
 937                              struct sipmsg *msg)
 938 {
 939         sipe_xml *xn_conferencing = sipe_xml_parse(msg->body, msg->bodylen);
 940         const sipe_xml *xn_focus_uri = sipe_xml_child(xn_conferencing, "focus-uri");
 941         const sipe_xml *xn_audio = sipe_xml_child(xn_conferencing, "audio");
 942         gchar *focus_uri = sipe_xml_data(xn_focus_uri);
 943         gboolean audio = sipe_strequal(sipe_xml_attribute(xn_audio, "available"), "true");
 944
 945         sipe_xml_free(xn_conferencing);
 946
 947         SIPE_DEBUG_INFO("We have received invitation to Conference. Focus URI=%s", focus_uri);
 948
 949         if (audio) {
 950                 sip_transport_response(sipe_private, msg, 180, "Ringing", NULL);
 951                 ask_accept_voice_conference(sipe_private, focus_uri, msg,
 952                                             (SipeUserAskCb) conf_accept_cb,
 953                                             (SipeUserAskCb) conf_decline_cb);
 954
 955         } else {
 956                 accept_incoming_invite_conf(sipe_private, focus_uri, FALSE, msg);
 957         }
 958
 959         g_free(focus_uri);
 960 }
 961
 962 #ifdef HAVE_VV
 963
 964 static void
 965 call_accept_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 966 {
 967         struct sip_session *session;
 968         session = sipe_session_find_conference(sipe_private, ctx->focus_uri);
 969
 970         sipe_private->sessions_to_accept =
 971                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 972
 973         if (session) {
 974                 sipe_core_media_connect_conference(SIPE_CORE_PUBLIC,
 975                                                    session->chat_session);
 976         }
 977
 978         conf_accept_ctx_free(ctx);
 979 }
 980
 981 static void
 982 call_decline_cb(struct sipe_core_private *sipe_private, struct conf_accept_ctx *ctx)
 983 {
 984         sipe_private->sessions_to_accept =
 985                         g_slist_remove(sipe_private->sessions_to_accept, ctx);
 986
 987         conf_accept_ctx_free(ctx);
 988 }
 989
 990 #endif // HAVE_VV
 991
 992 void
 993 sipe_process_conference(struct sipe_core_private *sipe_private,
 994                         struct sipmsg *msg)
 995 {
 996         sipe_xml *xn_conference_info;
 997         const sipe_xml *node;
 998         const sipe_xml *xn_subject;
 999         const gchar *focus_uri;
1000         struct sip_session *session;
1001         gboolean just_joined = FALSE;
1002 #ifdef HAVE_VV
1003         gboolean audio_was_added = FALSE;
1004 #endif
1005
1006         if (msg->response != 0 && msg->response != 200) return;
1007
1008         if (msg->bodylen == 0 || msg->body == NULL || !sipe_strequal(sipmsg_find_header(msg, "Event"), "conference")) return;
1009
1010         xn_conference_info = sipe_xml_parse(msg->body, msg->bodylen);
1011         if (!xn_conference_info) return;
1012
1013         focus_uri = sipe_xml_attribute(xn_conference_info, "entity");
1014         session = sipe_session_find_conference(sipe_private, focus_uri);
1015
1016         if (!session) {
1017                 SIPE_DEBUG_INFO("sipe_process_conference: unable to find conf session with focus=%s", focus_uri);
1018                 return;
1019         }
1020
1021         if (!session->chat_session->backend) {
1022                 gchar *self = sip_uri_self(sipe_private);
1023
1024                 /* create chat */
1025                 session->chat_session->backend = sipe_backend_chat_create(SIPE_CORE_PUBLIC,
1026                                                                           session->chat_session,
1027                                                                           session->chat_session->title,
1028                                                                           self);
1029                 just_joined = TRUE;
1030                 /* @TODO ask for full state (re-subscribe) if it was a partial one -
1031                  * this is to obtain full list of conference participants.
1032                  */
1033                  g_free(self);
1034         }
1035
1036         /* subject */
1037         if ((xn_subject = sipe_xml_child(xn_conference_info, "conference-description/subject"))) {
1038                 g_free(session->subject);
1039                 session->subject = sipe_xml_data(xn_subject);
1040                 sipe_backend_chat_topic(session->chat_session->backend, session->subject);
1041                 SIPE_DEBUG_INFO("sipe_process_conference: subject=%s", session->subject ? session->subject : "");
1042         }
1043
1044         /* IM MCU URI */
1045         if (!session->im_mcu_uri) {
1046                 for (node = sipe_xml_child(xn_conference_info, "conference-description/conf-uris/entry");
1047                      node;
1048                      node = sipe_xml_twin(node))
1049                 {
1050                         gchar *purpose = sipe_xml_data(sipe_xml_child(node, "purpose"));
1051
1052                         if (sipe_strequal("chat", purpose)) {
1053                                 g_free(purpose);
1054                                 session->im_mcu_uri = sipe_xml_data(sipe_xml_child(node, "uri"));
1055                                 SIPE_DEBUG_INFO("sipe_process_conference: im_mcu_uri=%s", session->im_mcu_uri);
1056                                 break;
1057                         }
1058                         g_free(purpose);
1059                 }
1060         }
1061
1062         /* users */
1063         for (node = sipe_xml_child(xn_conference_info, "users/user"); node; node = sipe_xml_twin(node)) {
1064                 const gchar *user_uri = sipe_xml_attribute(node, "entity");
1065                 const gchar *state = sipe_xml_attribute(node, "state");
1066                 gchar *role = sipe_xml_data(sipe_xml_child(node, "roles/entry"));
1067                 gboolean is_operator = sipe_strequal(role, "presenter");
1068                 gboolean is_in_im_mcu = FALSE;
1069                 gchar *self = sip_uri_self(sipe_private);
1070
1071                 if (sipe_strequal("deleted", state)) {
1072                         if (sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1073                                 sipe_backend_chat_remove(session->chat_session->backend,
1074                                                          user_uri);
1075                         }
1076                 } else {
1077                         /* endpoints */
1078                         const sipe_xml *endpoint;
1079                         for (endpoint = sipe_xml_child(node, "endpoint"); endpoint; endpoint = sipe_xml_twin(endpoint)) {
1080                                 const gchar *session_type;
1081                                 gchar *status = sipe_xml_data(sipe_xml_child(endpoint, "status"));
1082                                 gboolean connected = sipe_strequal("connected", status);
1083                                 g_free(status);
1084
1085                                 if (!connected)
1086                                         continue;
1087
1088                                 session_type = sipe_xml_attribute(endpoint, "session-type");
1089
1090                                 if (sipe_strequal("chat", session_type)) {
1091                                         is_in_im_mcu = TRUE;
1092                                         if (!sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1093                                                 sipe_backend_chat_add(session->chat_session->backend,
1094                                                                       user_uri,
1095                                                                       !just_joined && g_ascii_strcasecmp(user_uri, self));
1096                                         }
1097                                         if (is_operator) {
1098                                                 sipe_backend_chat_operator(session->chat_session->backend,
1099                                                                            user_uri);
1100                                         }
1101                                 } else if (sipe_strequal("audio-video", session_type)) {
1102 #ifdef HAVE_VV
1103                                         if (!session->is_call)
1104                                                 audio_was_added = TRUE;
1105 #endif
1106                                 }
1107                         }
1108                         if (!is_in_im_mcu) {
1109                                 if (sipe_backend_chat_find(session->chat_session->backend, user_uri)) {
1110                                         sipe_backend_chat_remove(session->chat_session->backend,
1111                                                                  user_uri);
1112                                 }
1113                         }
1114                 }
1115                 g_free(role);
1116                 g_free(self);
1117         }
1118
1119 #ifdef HAVE_VV
1120         if (audio_was_added) {
1121                 session->is_call = TRUE;
1122                 ask_accept_voice_conference(sipe_private, focus_uri, NULL,
1123                                             (SipeUserAskCb) call_accept_cb,
1124                                             (SipeUserAskCb) call_decline_cb);
1125         }
1126 #endif
1127
1128         /* entity-view, locked */
1129         for (node = sipe_xml_child(xn_conference_info, "conference-view/entity-view");
1130              node;
1131              node = sipe_xml_twin(node)) {
1132
1133                 const sipe_xml *xn_type = sipe_xml_child(node, "entity-state/media/entry/type");
1134                 gchar *tmp = NULL;
1135                 if (xn_type && sipe_strequal("chat", (tmp = sipe_xml_data(xn_type)))) {
1136                         const sipe_xml *xn_locked = sipe_xml_child(node, "entity-state/locked");
1137                         if (xn_locked) {
1138                                 gchar *locked = sipe_xml_data(xn_locked);
1139                                 gboolean prev_locked = session->locked;
1140                                 session->locked = sipe_strequal(locked, "true");
1141                                 if (prev_locked && !session->locked) {
1142                                         sipe_user_present_info(sipe_private, session,
1143                                                                _("This conference is no longer locked. Additional participants can now join."));
1144                                 }
1145                                 if (!prev_locked && session->locked) {
1146                                         sipe_user_present_info(sipe_private, session,
1147                                                                _("This conference is locked. Nobody else can join the conference while it is locked."));
1148                                 }
1149
1150                                 SIPE_DEBUG_INFO("sipe_process_conference: session->locked=%s",
1151                                                 session->locked ? "TRUE" : "FALSE");
1152                                 g_free(locked);
1153                         }
1154                 }
1155                 g_free(tmp);
1156         }
1157         sipe_xml_free(xn_conference_info);
1158
1159         if (session->im_mcu_uri) {
1160                 struct sip_dialog *dialog = sipe_dialog_find(session, session->im_mcu_uri);
1161                 if (!dialog) {
1162                         dialog = sipe_dialog_add(session);
1163
1164                         dialog->callid = g_strdup(session->callid);
1165                         dialog->with = g_strdup(session->im_mcu_uri);
1166
1167                         /* send INVITE to IM MCU */
1168                         sipe_im_invite(sipe_private, session, dialog->with, NULL, NULL, NULL, FALSE);
1169                 }
1170         }
1171
1172         sipe_process_pending_invite_queue(sipe_private, session);
1173 }
1174
1175 void
1176 sipe_conf_immcu_closed(struct sipe_core_private *sipe_private,
1177                        struct sip_session *session)
1178 {
1179         sipe_user_present_info(sipe_private, session,
1180                                _("You have been disconnected from this conference."));
1181         sipe_backend_chat_close(session->chat_session->backend);
1182 }
1183
1184 void
1185 conf_session_close(struct sipe_core_private *sipe_private,
1186                    struct sip_session *session)
1187 {
1188         if (session) {
1189                 /* unsubscribe from focus */
1190                 sipe_subscribe_conference(sipe_private,
1191                                           session->chat_session->id, TRUE);
1192
1193                 if (session->focus_dialog) {
1194                         /* send BYE to focus */
1195                         sip_transport_bye(sipe_private, session->focus_dialog);
1196                 }
1197         }
1198 }
1199
1200 void
1201 sipe_process_imdn(struct sipe_core_private *sipe_private,
1202                   struct sipmsg *msg)
1203 {
1204         gchar *with = parse_from(sipmsg_find_header(msg, "From"));
1205         const gchar *callid = sipmsg_find_header(msg, "Call-ID");
1206         static struct sip_session *session;
1207         sipe_xml *xn_imdn;
1208         const sipe_xml *node;
1209         gchar *message_id;
1210         gchar *message;
1211
1212         session = sipe_session_find_chat_or_im(sipe_private, callid, with);
1213         if (!session) {
1214                 SIPE_DEBUG_INFO("sipe_process_imdn: unable to find conf session with callid=%s", callid);
1215                 g_free(with);
1216                 return;
1217         }
1218
1219         xn_imdn = sipe_xml_parse(msg->body, msg->bodylen);
1220         message_id = sipe_xml_data(sipe_xml_child(xn_imdn, "message-id"));
1221
1222         message = g_hash_table_lookup(session->conf_unconfirmed_messages, message_id);
1223
1224         /* recipient */
1225         for (node = sipe_xml_child(xn_imdn, "recipient"); node; node = sipe_xml_twin(node)) {
1226                 gchar *tmp = parse_from(sipe_xml_attribute(node, "uri"));
1227                 gchar *uri = parse_from(tmp);
1228                 gchar *status = sipe_xml_data(sipe_xml_child(node, "status"));
1229                 guint error = status ? g_ascii_strtoull(status, NULL, 10) : 0;
1230                 /* default to error if missing or conversion failed */
1231                 if ((error == 0) || (error >= 300))
1232                         sipe_user_present_message_undelivered(sipe_private,
1233                                                               session,
1234                                                               error,
1235                                                               -1,
1236                                                               uri,
1237                                                               message);
1238                 g_free(status);
1239                 g_free(tmp);
1240                 g_free(uri);
1241         }
1242
1243         sipe_xml_free(xn_imdn);
1244
1245         g_hash_table_remove(session->conf_unconfirmed_messages, message_id);
1246         SIPE_DEBUG_INFO("sipe_process_imdn: removed message %s from conf_unconfirmed_messages(count=%d)",
1247                         message_id, g_hash_table_size(session->conf_unconfirmed_messages));
1248         g_free(message_id);
1249         g_free(with);
1250 }
1251
1252 void sipe_core_conf_make_leader(struct sipe_core_public *sipe_public,
1253                                 gpointer parameter,
1254                                 const gchar *buddy_name)
1255 {
1256         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
1257         struct sipe_chat_session *chat_session = parameter;
1258         struct sip_session *session;
1259
1260         SIPE_DEBUG_INFO("sipe_core_conf_make_leader: chat_title=%s",
1261                         chat_session->title);
1262
1263         session = sipe_session_find_chat(sipe_private, chat_session);
1264         sipe_conf_modify_user_role(sipe_private, session, buddy_name);
1265 }
1266
1267 void sipe_core_conf_remove_from(struct sipe_core_public *sipe_public,
1268                                 gpointer parameter,
1269                                 const gchar *buddy_name)
1270 {
1271         struct sipe_core_private *sipe_private = SIPE_CORE_PRIVATE;
1272         struct sipe_chat_session *chat_session = parameter;
1273         struct sip_session *session;
1274
1275         SIPE_DEBUG_INFO("sipe_core_conf_remove_from: chat_title=%s",
1276                         chat_session->title);
1277
1278         session = sipe_session_find_chat(sipe_private, chat_session);
1279         sipe_conf_delete_user(sipe_private, session, buddy_name);
1280 }
1281
1282 /*
1283   Local Variables:
1284   mode: c
1285   c-file-style: "bsd"
1286   indent-tabs-mode: t
1287   tab-width: 8
1288   End:
1289 */