sjero.net Git - linphone/blob - coreapi/callbacks.c

   1 /*
   2 linphone
   3 Copyright (C) 2010  Simon MORLAT (simon.morlat@free.fr)
   4
   5 This program is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU General Public License
   7 as published by the Free Software Foundation; either version 2
   8 of the License, or (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18 */
  19
  20
  21 #include "sal.h"
  22
  23 #include "linphonecore.h"
  24 #include "private.h"
  25 #include "mediastreamer2/mediastream.h"
  26 #include "lpconfig.h"
  27
  28 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details);
  29
  30 static bool_t media_parameters_changed(LinphoneCall *call, SalMediaDescription *oldmd, SalMediaDescription *newmd){
  31         if (call->params.in_conference!=call->current_params.in_conference) return TRUE;
  32         return !sal_media_description_equals(oldmd,newmd)  || call->up_bw!=linphone_core_get_upload_bandwidth(call->core);
  33 }
  34
  35 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
  36         SalMediaDescription *oldmd=call->resultdesc;
  37
  38         if (lc->ringstream!=NULL){
  39                 ring_stop(lc->ringstream);
  40                 lc->ringstream=NULL;
  41         }
  42         if (new_md!=NULL){
  43                 sal_media_description_ref(new_md);
  44                 call->media_pending=FALSE;
  45         }else{
  46                 call->media_pending=TRUE;
  47         }
  48         call->resultdesc=new_md;
  49         if (call->audiostream && call->audiostream->ticker){
  50                 /* we already started media: check if we really need to restart it*/
  51                 if (oldmd){
  52                         if (!media_parameters_changed(call,oldmd,new_md) && !call->playing_ringbacktone){
  53                                 /*as nothing has changed, keep the oldmd */
  54                                 call->resultdesc=oldmd;
  55                                 sal_media_description_unref(new_md);
  56                                 if (call->all_muted){
  57                                         ms_message("Early media finished, unmuting inputs...");
  58                                         /*we were in early media, now we want to enable real media */
  59                                         linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
  60                                         if (call->audiostream)
  61                                                 linphone_core_mute_mic (lc, linphone_core_is_mic_muted(lc));
  62 #ifdef VIDEO_ENABLED
  63                                         if (call->videostream && call->camera_active)
  64                                                 video_stream_change_camera(call->videostream,lc->video_conf.device );
  65 #endif
  66                                 }
  67                                 ms_message("No need to restart streams, SDP is unchanged.");
  68                                 return;
  69                         }else{
  70                                 ms_message("Media descriptions are different, need to restart the streams.");
  71                         }
  72                 }
  73                 linphone_call_stop_media_streams (call);
  74                 linphone_call_init_media_streams (call);
  75         }
  76         if (oldmd)
  77                 sal_media_description_unref(oldmd);
  78
  79         if (new_md) {
  80                 bool_t all_muted=FALSE;
  81                 bool_t send_ringbacktone=FALSE;
  82
  83                 if (call->audiostream==NULL){
  84                         /*this happens after pausing the call locally. The streams is destroyed and then we wait the 200Ok to recreate it*/
  85                         linphone_call_init_media_streams (call);
  86                 }
  87                 if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
  88                         send_ringbacktone=TRUE;
  89                 }
  90                 if (call->state==LinphoneCallIncomingEarlyMedia ||
  91                     (call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){
  92                         all_muted=TRUE;
  93                 }
  94                 linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
  95         }
  96 }
  97 #if 0
  98 static bool_t is_duplicate_call(LinphoneCore *lc, const LinphoneAddress *from, const LinphoneAddress *to){
  99         MSList *elem;
 100         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 101                 LinphoneCall *call=(LinphoneCall*)elem->data;
 102                 if (linphone_address_weak_equal(call->log->from,from) &&
 103                     linphone_address_weak_equal(call->log->to, to)){
 104                         return TRUE;
 105                 }
 106         }
 107         return FALSE;
 108 }
 109 #endif
 110
 111 static bool_t already_a_call_pending(LinphoneCore *lc){
 112         MSList *elem;
 113         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 114                 LinphoneCall *call=(LinphoneCall*)elem->data;
 115                 if (call->state==LinphoneCallIncomingReceived
 116                     || call->state==LinphoneCallOutgoingInit
 117                     || call->state==LinphoneCallOutgoingProgress
 118                     || call->state==LinphoneCallOutgoingEarlyMedia
 119                     || call->state==LinphoneCallOutgoingRinging){
 120                         return TRUE;
 121                 }
 122         }
 123         return FALSE;
 124 }
 125
 126 static void call_received(SalOp *h){
 127         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 128         char *barmesg;
 129         LinphoneCall *call;
 130         const char *from,*to;
 131         char *tmp;
 132         LinphoneAddress *from_parsed;
 133         LinphoneAddress *from_addr, *to_addr;
 134         SalMediaDescription *md;
 135         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
 136         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
 137
 138         /* first check if we can answer successfully to this invite */
 139         if (lc->presence_mode==LinphoneStatusBusy ||
 140             lc->presence_mode==LinphoneStatusOffline ||
 141             lc->presence_mode==LinphoneStatusDoNotDisturb ||
 142             lc->presence_mode==LinphoneStatusMoved){
 143                 if (lc->presence_mode==LinphoneStatusBusy )
 144                         sal_call_decline(h,SalReasonBusy,NULL);
 145                 else if (lc->presence_mode==LinphoneStatusOffline)
 146                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 147                 else if (lc->presence_mode==LinphoneStatusDoNotDisturb)
 148                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 149                 else if (lc->alt_contact!=NULL && lc->presence_mode==LinphoneStatusMoved)
 150                         sal_call_decline(h,SalReasonRedirect,lc->alt_contact);
 151                 sal_op_release(h);
 152                 return;
 153         }
 154         if (!linphone_core_can_we_add_call(lc)){/*busy*/
 155                 sal_call_decline(h,SalReasonBusy,NULL);
 156                 sal_op_release(h);
 157                 return;
 158         }
 159         from=sal_op_get_from(h);
 160         to=sal_op_get_to(h);
 161         from_addr=linphone_address_new(from);
 162         to_addr=linphone_address_new(to);
 163
 164         if (already_a_call_pending(lc)){
 165                 ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
 166                 sal_call_decline(h,SalReasonBusy,NULL);
 167                 sal_op_release(h);
 168                 linphone_address_destroy(from_addr);
 169                 linphone_address_destroy(to_addr);
 170                 return;
 171         }
 172
 173         call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
 174         sal_call_set_local_media_description(h,call->localdesc);
 175         md=sal_call_get_final_media_description(h);
 176
 177         if (md && sal_media_description_empty(md)){
 178                 sal_call_decline(h,SalReasonMedia,NULL);
 179                 linphone_call_unref(call);
 180                 return;
 181         }
 182
 183         /* the call is acceptable so we can now add it to our list */
 184         linphone_core_add_call(lc,call);
 185
 186         from_parsed=linphone_address_new(sal_op_get_from(h));
 187         linphone_address_clean(from_parsed);
 188         tmp=linphone_address_as_string(from_parsed);
 189         linphone_address_destroy(from_parsed);
 190         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
 191             (sal_call_autoanswer_asked(h)) ?_(" and asked autoanswer."):_("."));
 192         if (lc->vtable.show) lc->vtable.show(lc);
 193         if (lc->vtable.display_status)
 194             lc->vtable.display_status(lc,barmesg);
 195
 196         /* play the ring if this is the only call*/
 197         if (ms_list_size(lc->calls)==1){
 198                 lc->current_call=call;
 199                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 200                         ring_stop(lc->ringstream);
 201                         lc->ringstream=NULL;
 202                         lc->dmfs_playing_start_time=0;
 203                 }
 204                 if (lc->sound_conf.ring_sndcard!=NULL){
 205                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
 206                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
 207                                 ms_message("Starting local ring...");
 208                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
 209                         }
 210                         else
 211                         {
 212                                 ms_message("the local ring is already started");
 213                         }
 214                 }
 215         }else{
 216                 /* else play a tone within the context of the current call */
 217                 call->ringing_beep=TRUE;
 218                 linphone_core_play_tone(lc);
 219         }
 220
 221
 222         linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
 223         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
 224
 225         if (call->state==LinphoneCallIncomingReceived){
 226                 sal_call_notify_ringing(h,propose_early_media || ringback_tone!=NULL);
 227
 228                 if (propose_early_media || ringback_tone!=NULL){
 229                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
 230                         linphone_core_update_streams(lc,call,md);
 231                 }
 232                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
 233                         linphone_core_accept_call(lc,call);
 234                 }
 235         }
 236         linphone_call_unref(call);
 237
 238         ms_free(barmesg);
 239         ms_free(tmp);
 240 }
 241
 242 static void call_ringing(SalOp *h){
 243         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 244         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
 245         SalMediaDescription *md;
 246
 247         if (call==NULL) return;
 248
 249         if (lc->vtable.display_status)
 250                 lc->vtable.display_status(lc,_("Remote ringing."));
 251
 252         md=sal_call_get_final_media_description(h);
 253         if (md==NULL){
 254                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 255                         ring_stop(lc->ringstream);
 256                         lc->ringstream=NULL;
 257                         lc->dmfs_playing_start_time=0;
 258                 }
 259                 if (lc->ringstream!=NULL) return;       /*already ringing !*/
 260                 if (lc->sound_conf.play_sndcard!=NULL){
 261                         MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 262                         lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
 263                 }
 264                 ms_message("Remote ringing...");
 265                 if (lc->vtable.display_status)
 266                         lc->vtable.display_status(lc,_("Remote ringing..."));
 267                 linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
 268         }else{
 269                 /*accept early media */
 270                 if (call->audiostream && call->audiostream->ticker!=NULL){
 271                         /*streams already started */
 272                         ms_message("Early media already started.");
 273                         return;
 274                 }
 275                 if (lc->vtable.show) lc->vtable.show(lc);
 276                 if (lc->vtable.display_status)
 277                         lc->vtable.display_status(lc,_("Early media."));
 278                 linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
 279                 if (lc->ringstream!=NULL){
 280                         ring_stop(lc->ringstream);
 281                         lc->ringstream=NULL;
 282                 }
 283                 ms_message("Doing early media...");
 284                 linphone_core_update_streams (lc,call,md);
 285         }
 286 }
 287
 288 /*
 289  * could be reach :
 290  *  - when the call is accepted
 291  *  - when a request is accepted (pause, resume)
 292  */
 293 static void call_accepted(SalOp *op){
 294         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 295         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 296         SalMediaDescription *md;
 297
 298         if (call==NULL){
 299                 ms_warning("No call to accept.");
 300                 return ;
 301         }
 302
 303         md=sal_call_get_final_media_description(op);
 304
 305         if (call->state==LinphoneCallOutgoingProgress ||
 306             call->state==LinphoneCallOutgoingRinging ||
 307             call->state==LinphoneCallOutgoingEarlyMedia){
 308                 linphone_call_set_state(call,LinphoneCallConnected,"Connected");
 309         }
 310         if (md && !sal_media_description_empty(md)){
 311                 if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
 312                     sal_media_description_has_dir(md,SalStreamInactive)){
 313                         if (lc->vtable.display_status){
 314                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 315                                 char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
 316                                 lc->vtable.display_status(lc,msg);
 317                                 ms_free(tmp);
 318                                 ms_free(msg);
 319                         }
 320                         linphone_core_update_streams (lc,call,md);
 321                         linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
 322                 }else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
 323                         /*we are put on hold when the call is initially accepted */
 324                         if (lc->vtable.display_status){
 325                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 326                                 char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
 327                                 lc->vtable.display_status(lc,msg);
 328                                 ms_free(tmp);
 329                                 ms_free(msg);
 330                         }
 331                         linphone_core_update_streams (lc,call,md);
 332                         linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
 333                 }else{
 334                         if (call->state==LinphoneCallStreamsRunning){
 335                                 /*media was running before, the remote as acceted a call modification (that is
 336                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 337                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 338                         }else{
 339                                 if (call->state==LinphoneCallResuming){
 340                                         if (lc->vtable.display_status){
 341                                                 lc->vtable.display_status(lc,_("Call resumed."));
 342                                         }
 343                                 }else{
 344                                         if (lc->vtable.display_status){
 345                                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 346                                                 char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
 347                                                 lc->vtable.display_status(lc,msg);
 348                                                 ms_free(tmp);
 349                                                 ms_free(msg);
 350                                         }
 351                                 }
 352                         }
 353                         linphone_core_update_streams (lc,call,md);
 354                         linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
 355                         if (!call->current_params.in_conference)
 356                                 lc->current_call=call;
 357                 }
 358         }else{
 359                 /*send a bye*/
 360                 ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
 361                 linphone_core_abort_call(lc,call,"No codec intersection");
 362         }
 363 }
 364
 365 static void call_ack(SalOp *op){
 366         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 367         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 368         if (call==NULL){
 369                 ms_warning("No call to be ACK'd");
 370                 return ;
 371         }
 372         if (call->media_pending){
 373                 SalMediaDescription *md=sal_call_get_final_media_description(op);
 374                 if (md && !sal_media_description_empty(md)){
 375                         if (call->state==LinphoneCallStreamsRunning){
 376                                 /*media was running before, the remote as acceted a call modification (that is
 377                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 378                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 379                         }
 380                         linphone_core_update_streams (lc,call,md);
 381                         linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 382                 }else{
 383                         /*send a bye*/
 384                         ms_error("Incompatible SDP response received in ACK, need to abort the call");
 385                         linphone_core_abort_call(lc,call,"No codec intersection");
 386                         return;
 387                 }
 388         }
 389 }
 390
 391
 392 /* this callback is called when an incoming re-INVITE modifies the session*/
 393 static void call_updating(SalOp *op){
 394         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 395         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 396         LinphoneCallState prevstate=LinphoneCallIdle;
 397         SalMediaDescription *md;
 398         SalMediaDescription *old_md=call->resultdesc;
 399
 400         sal_media_description_ref(old_md);
 401
 402         md=sal_call_get_final_media_description(op);
 403
 404         /*accept the modification (sends a 200Ok)*/
 405         sal_call_accept(op);
 406
 407         if (md && !sal_media_description_empty(md))
 408         {
 409                 linphone_core_update_streams (lc,call,md);
 410
 411                 if (sal_media_description_has_dir(call->localdesc,SalStreamSendRecv)){
 412                         ms_message("Our local status is SalStreamSendRecv");
 413                         if (sal_media_description_has_dir (md,SalStreamRecvOnly) || sal_media_description_has_dir(md,SalStreamInactive)){
 414                                 /* we are being paused */
 415                                 if(lc->vtable.display_status)
 416                                         lc->vtable.display_status(lc,_("We are being paused..."));
 417                                 linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
 418                         }else if (!sal_media_description_has_dir(old_md,SalStreamSendRecv) && sal_media_description_has_dir(md,SalStreamSendRecv)){
 419                                 if(lc->vtable.display_status)
 420                                         lc->vtable.display_status(lc,_("We have been resumed..."));
 421                                 linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 422                         }else{
 423                                 prevstate=call->state;
 424                                 if(lc->vtable.display_status)
 425                                         lc->vtable.display_status(lc,_("Call has been updated by remote..."));
 426                                 linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
 427                         }
 428                 }
 429
 430                 if (prevstate!=LinphoneCallIdle){
 431                         linphone_call_set_state (call,prevstate,"Connected (streams running)");
 432                 }
 433         }
 434         sal_media_description_unref(old_md);
 435 }
 436
 437 static void call_terminated(SalOp *op, const char *from){
 438         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 439         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 440
 441         if (call==NULL) return;
 442
 443         if (linphone_call_get_state(call)==LinphoneCallEnd || linphone_call_get_state(call)==LinphoneCallError){
 444                 ms_warning("call_terminated: ignoring.");
 445                 return;
 446         }
 447         ms_message("Current call terminated...");
 448         //we stop the call only if we have this current call or if we are in call
 449         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 450                 ring_stop(lc->ringstream);
 451                 lc->ringstream=NULL;
 452         }
 453         linphone_call_stop_media_streams(call);
 454         if (lc->vtable.show!=NULL)
 455                 lc->vtable.show(lc);
 456         if (lc->vtable.display_status!=NULL)
 457                 lc->vtable.display_status(lc,_("Call terminated."));
 458
 459         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 460 }
 461
 462 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 463         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 464         char *msg486=_("User is busy.");
 465         char *msg480=_("User is temporarily unavailable.");
 466         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 467         char *msg600=_("User does not want to be disturbed.");
 468         char *msg603=_("Call declined.");
 469         const char *msg=details;
 470         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 471
 472         if (call==NULL){
 473                 ms_warning("Call faillure reported on already cleaned call ?");
 474                 return ;
 475         }
 476
 477         if (lc->vtable.show) lc->vtable.show(lc);
 478
 479         if (error==SalErrorNoResponse){
 480                 msg=_("No response.");
 481                 if (lc->vtable.display_status)
 482                         lc->vtable.display_status(lc,msg);
 483         }else if (error==SalErrorProtocol){
 484                 msg=details ? details : _("Protocol error.");
 485                 if (lc->vtable.display_status)
 486                         lc->vtable.display_status(lc, msg);
 487         }else if (error==SalErrorFailure){
 488                 switch(sr){
 489                         case SalReasonDeclined:
 490                                 msg=msg603;
 491                                 if (lc->vtable.display_status)
 492                                         lc->vtable.display_status(lc,msg603);
 493                         break;
 494                         case SalReasonBusy:
 495                                 msg=msg486;
 496                                 if (lc->vtable.display_status)
 497                                         lc->vtable.display_status(lc,msg486);
 498                         break;
 499                         case SalReasonRedirect:
 500                                 msg=_("Redirected");
 501                                 if (lc->vtable.display_status)
 502                                         lc->vtable.display_status(lc,msg);
 503                         break;
 504                         case SalReasonTemporarilyUnavailable:
 505                                 msg=msg480;
 506                                 if (lc->vtable.display_status)
 507                                         lc->vtable.display_status(lc,msg480);
 508                         break;
 509                         case SalReasonNotFound:
 510                                 msg=_("Not found");
 511                                 if (lc->vtable.display_status)
 512                                         lc->vtable.display_status(lc,msg);
 513                         break;
 514                         case SalReasonDoNotDisturb:
 515                                 msg=msg600;
 516                                 if (lc->vtable.display_status)
 517                                         lc->vtable.display_status(lc,msg600);
 518                         break;
 519                         case SalReasonMedia:
 520                                 msg=_("No common codecs");
 521                                 if (lc->vtable.display_status)
 522                                         lc->vtable.display_status(lc,msg);
 523                         break;
 524                         default:
 525                                 if (lc->vtable.display_status)
 526                                         lc->vtable.display_status(lc,_("Call failed."));
 527                 }
 528         }
 529
 530         if (lc->ringstream!=NULL) {
 531                 ring_stop(lc->ringstream);
 532                 lc->ringstream=NULL;
 533         }
 534         linphone_call_stop_media_streams (call);
 535         if (sr!=SalReasonDeclined) linphone_call_set_state(call,LinphoneCallError,msg);
 536         else{
 537                 call->reason=LinphoneReasonDeclined;
 538                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 539         }
 540 }
 541
 542 static void call_released(SalOp *op){
 543         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 544         if (call!=NULL){
 545                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 546         }else ms_error("call_released() for already destroyed call ?");
 547 }
 548
 549 static void auth_requested(SalOp *h, const char *realm, const char *username){
 550         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 551         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 552         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 553
 554         if (ai && ai->works==FALSE && ai->usecount>=3){
 555                 /*case we tried 3 times to authenticate, without success */
 556                 /*Better is to stop (implemeted below in else statement), and retry later*/
 557                 if (ms_time(NULL)-ai->last_use_time>30){
 558                         ai->usecount=0; /*so that we can allow to retry */
 559                 }
 560         }
 561
 562         if (ai && (ai->works || ai->usecount<3)){
 563                 SalAuthInfo sai;
 564                 sai.username=ai->username;
 565                 sai.userid=ai->userid;
 566                 sai.realm=ai->realm;
 567                 sai.password=ai->passwd;
 568                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 569                 sal_op_authenticate(h,&sai);
 570                 ai->usecount++;
 571                 ai->last_use_time=ms_time(NULL);
 572         }else{
 573                 if (ai && ai->works==FALSE) {
 574                         sal_op_cancel_authentication(h);
 575                 }
 576                 if (lc->vtable.auth_info_requested)
 577                         lc->vtable.auth_info_requested(lc,realm,username);
 578         }
 579 }
 580
 581 static void auth_success(SalOp *h, const char *realm, const char *username){
 582         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 583         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 584         if (ai){
 585                 ms_message("%s/%s authentication works.",realm,username);
 586                 ai->works=TRUE;
 587         }
 588 }
 589
 590 static void register_success(SalOp *op, bool_t registered){
 591         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 592         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 593         char *msg;
 594
 595         cfg->registered=registered;
 596         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 597         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 598                                         registered ? "Registration sucessful" : "Unregistration done");
 599         if (lc->vtable.display_status){
 600                 if (cfg->registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 601                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 602                 lc->vtable.display_status(lc,msg);
 603                 ms_free(msg);
 604         }
 605
 606 }
 607
 608 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 609         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 610         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 611
 612         if (cfg==NULL){
 613                 ms_warning("Registration failed for unknown proxy config.");
 614                 return ;
 615         }
 616         if (details==NULL)
 617                 details=_("no response timeout");
 618
 619         if (lc->vtable.display_status) {
 620                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 621                 lc->vtable.display_status(lc,msg);
 622                 ms_free(msg);
 623         }
 624         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 625                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 626         } else if (error == SalErrorNoResponse) {
 627                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 628         }
 629         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 630         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 631                 const char *realm=NULL,*username=NULL;
 632                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 633                         if (lc->vtable.auth_info_requested)
 634                                 lc->vtable.auth_info_requested(lc,realm,username);
 635                 }
 636         }
 637 }
 638
 639 static void vfu_request(SalOp *op){
 640 #ifdef VIDEO_ENABLED
 641         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 642         if (call==NULL){
 643                 ms_warning("VFU request but no call !");
 644                 return ;
 645         }
 646         if (call->videostream)
 647                 video_stream_send_vfu(call->videostream);
 648 #endif
 649 }
 650
 651 static void dtmf_received(SalOp *op, char dtmf){
 652         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 653         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 654         if (lc->vtable.dtmf_received != NULL)
 655                 lc->vtable.dtmf_received(lc, call, dtmf);
 656 }
 657
 658 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 659         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 660         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 661         if (call){
 662                 if (call->refer_to!=NULL){
 663                         ms_free(call->refer_to);
 664                 }
 665                 call->refer_to=ms_strdup(referto);
 666                 call->refer_pending=TRUE;
 667                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 668                 if (lc->vtable.display_status){
 669                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 670                         lc->vtable.display_status(lc,msg);
 671                         ms_free(msg);
 672                 }
 673                 if (call->state!=LinphoneCallPaused){
 674                         ms_message("Automatically pausing current call to accept transfer.");
 675                         linphone_core_pause_call(lc,call);
 676                 }
 677                 linphone_core_start_refered_call(lc,call);
 678                 sal_call_accept_refer(op);
 679         }else if (lc->vtable.refer_received){
 680                 lc->vtable.refer_received(lc,referto);
 681                 sal_call_accept_refer(op);
 682         }
 683 }
 684
 685 static void text_received(Sal *sal, const char *from, const char *msg){
 686         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 687         linphone_core_text_received(lc,from,msg);
 688 }
 689
 690 static void notify(SalOp *op, const char *from, const char *msg){
 691         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 692         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 693         ms_message("get a %s notify from %s",msg,from);
 694         if(lc->vtable.notify_recv)
 695                 lc->vtable.notify_recv(lc,call,from,msg);
 696 }
 697
 698 static void notify_presence(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg){
 699         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 700         linphone_notify_recv(lc,op,ss,status);
 701 }
 702
 703 static void subscribe_received(SalOp *op, const char *from){
 704         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 705         linphone_subscription_new(lc,op,from);
 706 }
 707
 708 static void subscribe_closed(SalOp *op, const char *from){
 709         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 710         linphone_subscription_closed(lc,op);
 711 }
 712
 713 static void ping_reply(SalOp *op){
 714         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 715         ms_message("ping reply !");
 716         if (call){
 717                 if (call->state==LinphoneCallOutgoingInit){
 718                         linphone_core_start_invite(call->core,call,NULL);
 719                 }
 720         }
 721         else
 722         {
 723                 ms_warning("ping reply without call attached...");
 724         }
 725 }
 726
 727 SalCallbacks linphone_sal_callbacks={
 728         call_received,
 729         call_ringing,
 730         call_accepted,
 731         call_ack,
 732         call_updating,
 733         call_terminated,
 734         call_failure,
 735         call_released,
 736         auth_requested,
 737         auth_success,
 738         register_success,
 739         register_failure,
 740         vfu_request,
 741         dtmf_received,
 742         refer_received,
 743         text_received,
 744         notify,
 745         notify_presence,
 746         subscribe_received,
 747         subscribe_closed,
 748         ping_reply
 749 };
 750
 751