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_with_remote_address(const LinphoneCore *lc, const LinphoneAddress *remote) {
 112         ms_warning(" searching for already_a_call_with_remote_address.");
 113
 114         MSList *elem;
 115         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 116                 const LinphoneCall *call=(LinphoneCall*)elem->data;
 117                 const LinphoneAddress *cRemote=linphone_call_get_remote_address(call);
 118                 if (linphone_address_weak_equal(cRemote,remote)) {
 119                         ms_warning("already_a_call_with_remote_address found.");
 120                         return TRUE;
 121                 }
 122         }
 123         return FALSE;
 124 }
 125
 126 static bool_t already_a_call_pending(LinphoneCore *lc){
 127         MSList *elem;
 128         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 129                 LinphoneCall *call=(LinphoneCall*)elem->data;
 130                 if (call->state==LinphoneCallIncomingReceived
 131                     || call->state==LinphoneCallOutgoingInit
 132                     || call->state==LinphoneCallOutgoingProgress
 133                     || call->state==LinphoneCallOutgoingEarlyMedia
 134                     || call->state==LinphoneCallOutgoingRinging){
 135                         return TRUE;
 136                 }
 137         }
 138         return FALSE;
 139 }
 140
 141 static void call_received(SalOp *h){
 142         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 143         char *barmesg;
 144         LinphoneCall *call;
 145         const char *from,*to;
 146         char *tmp;
 147         LinphoneAddress *from_parsed;
 148         LinphoneAddress *from_addr, *to_addr;
 149         SalMediaDescription *md;
 150         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
 151         bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",TRUE);
 152         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
 153
 154         /* first check if we can answer successfully to this invite */
 155         if (lc->presence_mode==LinphoneStatusBusy ||
 156             lc->presence_mode==LinphoneStatusOffline ||
 157             lc->presence_mode==LinphoneStatusDoNotDisturb ||
 158             lc->presence_mode==LinphoneStatusMoved){
 159                 if (lc->presence_mode==LinphoneStatusBusy )
 160                         sal_call_decline(h,SalReasonBusy,NULL);
 161                 else if (lc->presence_mode==LinphoneStatusOffline)
 162                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 163                 else if (lc->presence_mode==LinphoneStatusDoNotDisturb)
 164                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 165                 else if (lc->alt_contact!=NULL && lc->presence_mode==LinphoneStatusMoved)
 166                         sal_call_decline(h,SalReasonRedirect,lc->alt_contact);
 167                 sal_op_release(h);
 168                 return;
 169         }
 170         if (!linphone_core_can_we_add_call(lc)){/*busy*/
 171                 sal_call_decline(h,SalReasonBusy,NULL);
 172                 sal_op_release(h);
 173                 return;
 174         }
 175         from=sal_op_get_from(h);
 176         to=sal_op_get_to(h);
 177         from_addr=linphone_address_new(from);
 178         to_addr=linphone_address_new(to);
 179
 180         if ((already_a_call_with_remote_address(lc,from_addr) && prevent_colliding_calls) || already_a_call_pending(lc)){
 181                 ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
 182                 sal_call_decline(h,SalReasonBusy,NULL);
 183                 sal_op_release(h);
 184                 linphone_address_destroy(from_addr);
 185                 linphone_address_destroy(to_addr);
 186                 return;
 187         }
 188
 189         call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
 190         sal_call_set_local_media_description(h,call->localdesc);
 191         md=sal_call_get_final_media_description(h);
 192
 193         if (md && sal_media_description_empty(md)){
 194                 sal_call_decline(h,SalReasonMedia,NULL);
 195                 linphone_call_unref(call);
 196                 return;
 197         }
 198
 199         /* the call is acceptable so we can now add it to our list */
 200         linphone_core_add_call(lc,call);
 201
 202         from_parsed=linphone_address_new(sal_op_get_from(h));
 203         linphone_address_clean(from_parsed);
 204         tmp=linphone_address_as_string(from_parsed);
 205         linphone_address_destroy(from_parsed);
 206         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
 207             (sal_call_autoanswer_asked(h)) ?_(" and asked autoanswer."):_("."));
 208         if (lc->vtable.show) lc->vtable.show(lc);
 209         if (lc->vtable.display_status)
 210             lc->vtable.display_status(lc,barmesg);
 211
 212         /* play the ring if this is the only call*/
 213         if (ms_list_size(lc->calls)==1){
 214                 lc->current_call=call;
 215                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 216                         ring_stop(lc->ringstream);
 217                         lc->ringstream=NULL;
 218                         lc->dmfs_playing_start_time=0;
 219                 }
 220                 if (lc->sound_conf.ring_sndcard!=NULL){
 221                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
 222                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
 223                                 ms_message("Starting local ring...");
 224                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
 225                         }
 226                         else
 227                         {
 228                                 ms_message("the local ring is already started");
 229                         }
 230                 }
 231         }else{
 232                 /* else play a tone within the context of the current call */
 233                 call->ringing_beep=TRUE;
 234                 linphone_core_play_tone(lc);
 235         }
 236
 237
 238         linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
 239         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
 240
 241         if (call->state==LinphoneCallIncomingReceived){
 242                 sal_call_notify_ringing(h,propose_early_media || ringback_tone!=NULL);
 243
 244                 if (propose_early_media || ringback_tone!=NULL){
 245                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
 246                         linphone_core_update_streams(lc,call,md);
 247                 }
 248                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
 249                         linphone_core_accept_call(lc,call);
 250                 }
 251         }
 252         linphone_call_unref(call);
 253
 254         ms_free(barmesg);
 255         ms_free(tmp);
 256 }
 257
 258 static void call_ringing(SalOp *h){
 259         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 260         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
 261         SalMediaDescription *md;
 262
 263         if (call==NULL) return;
 264
 265         if (lc->vtable.display_status)
 266                 lc->vtable.display_status(lc,_("Remote ringing."));
 267
 268         md=sal_call_get_final_media_description(h);
 269         if (md==NULL){
 270                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 271                         ring_stop(lc->ringstream);
 272                         lc->ringstream=NULL;
 273                         lc->dmfs_playing_start_time=0;
 274                 }
 275                 if (lc->ringstream!=NULL) return;       /*already ringing !*/
 276                 if (lc->sound_conf.play_sndcard!=NULL){
 277                         MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 278                         lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
 279                 }
 280                 ms_message("Remote ringing...");
 281                 if (lc->vtable.display_status)
 282                         lc->vtable.display_status(lc,_("Remote ringing..."));
 283                 linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
 284         }else{
 285                 /*accept early media */
 286                 if (call->audiostream && call->audiostream->ticker!=NULL){
 287                         /*streams already started */
 288                         ms_message("Early media already started.");
 289                         return;
 290                 }
 291                 if (lc->vtable.show) lc->vtable.show(lc);
 292                 if (lc->vtable.display_status)
 293                         lc->vtable.display_status(lc,_("Early media."));
 294                 linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
 295                 if (lc->ringstream!=NULL){
 296                         ring_stop(lc->ringstream);
 297                         lc->ringstream=NULL;
 298                 }
 299                 ms_message("Doing early media...");
 300                 linphone_core_update_streams (lc,call,md);
 301         }
 302 }
 303
 304 /*
 305  * could be reach :
 306  *  - when the call is accepted
 307  *  - when a request is accepted (pause, resume)
 308  */
 309 static void call_accepted(SalOp *op){
 310         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 311         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 312         SalMediaDescription *md;
 313
 314         if (call==NULL){
 315                 ms_warning("No call to accept.");
 316                 return ;
 317         }
 318
 319         md=sal_call_get_final_media_description(op);
 320
 321         if (call->state==LinphoneCallOutgoingProgress ||
 322             call->state==LinphoneCallOutgoingRinging ||
 323             call->state==LinphoneCallOutgoingEarlyMedia){
 324                 linphone_call_set_state(call,LinphoneCallConnected,"Connected");
 325         }
 326         if (md && !sal_media_description_empty(md)){
 327                 if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
 328                     sal_media_description_has_dir(md,SalStreamInactive)){
 329                         if (lc->vtable.display_status){
 330                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 331                                 char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
 332                                 lc->vtable.display_status(lc,msg);
 333                                 ms_free(tmp);
 334                                 ms_free(msg);
 335                         }
 336                         linphone_core_update_streams (lc,call,md);
 337                         linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
 338                 }else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
 339                         /*we are put on hold when the call is initially accepted */
 340                         if (lc->vtable.display_status){
 341                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 342                                 char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
 343                                 lc->vtable.display_status(lc,msg);
 344                                 ms_free(tmp);
 345                                 ms_free(msg);
 346                         }
 347                         linphone_core_update_streams (lc,call,md);
 348                         linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
 349                 }else{
 350                         if (call->state==LinphoneCallStreamsRunning){
 351                                 /*media was running before, the remote as acceted a call modification (that is
 352                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 353                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 354                         }else{
 355                                 if (call->state==LinphoneCallResuming){
 356                                         if (lc->vtable.display_status){
 357                                                 lc->vtable.display_status(lc,_("Call resumed."));
 358                                         }
 359                                 }else{
 360                                         if (lc->vtable.display_status){
 361                                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 362                                                 char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
 363                                                 lc->vtable.display_status(lc,msg);
 364                                                 ms_free(tmp);
 365                                                 ms_free(msg);
 366                                         }
 367                                 }
 368                         }
 369                         linphone_core_update_streams (lc,call,md);
 370                         linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
 371                         if (!call->current_params.in_conference)
 372                                 lc->current_call=call;
 373                 }
 374         }else{
 375                 /*send a bye*/
 376                 ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
 377                 linphone_core_abort_call(lc,call,_("Incompatible, check codecs..."));
 378         }
 379 }
 380
 381 static void call_ack(SalOp *op){
 382         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 383         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 384         if (call==NULL){
 385                 ms_warning("No call to be ACK'd");
 386                 return ;
 387         }
 388         if (call->media_pending){
 389                 SalMediaDescription *md=sal_call_get_final_media_description(op);
 390                 if (md && !sal_media_description_empty(md)){
 391                         if (call->state==LinphoneCallStreamsRunning){
 392                                 /*media was running before, the remote as acceted a call modification (that is
 393                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 394                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 395                         }
 396                         linphone_core_update_streams (lc,call,md);
 397                         linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 398                 }else{
 399                         /*send a bye*/
 400                         ms_error("Incompatible SDP response received in ACK, need to abort the call");
 401                         linphone_core_abort_call(lc,call,"No codec intersection");
 402                         return;
 403                 }
 404         }
 405 }
 406
 407 static void call_accept_update(LinphoneCore *lc, LinphoneCall *call){
 408         SalMediaDescription *md;
 409         sal_call_accept(call->op);
 410         md=sal_call_get_final_media_description(call->op);
 411         if (md && !sal_media_description_empty(md))
 412                 linphone_core_update_streams(lc,call,md);
 413 }
 414
 415 static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
 416         call_accept_update(lc,call);
 417         if(lc->vtable.display_status)
 418                 lc->vtable.display_status(lc,_("We have been resumed."));
 419         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
 420 }
 421
 422 static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
 423         call_accept_update(lc,call);
 424         /* we are being paused */
 425         if(lc->vtable.display_status)
 426                 lc->vtable.display_status(lc,_("We are paused by other party."));
 427         linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
 428 }
 429
 430 static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call){
 431         if(lc->vtable.display_status)
 432                 lc->vtable.display_status(lc,_("Call is updated by remote."));
 433         call->defer_update=FALSE;
 434         linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
 435         if (call->defer_update==FALSE){
 436                 linphone_core_accept_call_update(lc,call,NULL);
 437         }
 438 }
 439
 440 /* this callback is called when an incoming re-INVITE modifies the session*/
 441 static void call_updating(SalOp *op){
 442         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 443         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 444         SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
 445
 446         if (rmd==NULL){
 447                 /* case of a reINVITE without SDP */
 448                 call_accept_update(lc,call);
 449                 call->media_pending=TRUE;
 450                 return;
 451         }
 452
 453         switch(call->state){
 454                 case LinphoneCallPausedByRemote:
 455                         if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
 456                                 call_resumed(lc,call);
 457                         }
 458                 break;
 459                 case LinphoneCallStreamsRunning:
 460                 case LinphoneCallConnected:
 461                         if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
 462                                 call_paused_by_remote(lc,call);
 463                         }else{
 464                                 call_updated_by_remote(lc,call);
 465                         }
 466                 break;
 467                 default:
 468                         call_accept_update(lc,call);
 469         }
 470 }
 471
 472 static void call_terminated(SalOp *op, const char *from){
 473         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 474         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 475
 476         if (call==NULL) return;
 477
 478         if (linphone_call_get_state(call)==LinphoneCallEnd || linphone_call_get_state(call)==LinphoneCallError){
 479                 ms_warning("call_terminated: ignoring.");
 480                 return;
 481         }
 482         ms_message("Current call terminated...");
 483         //we stop the call only if we have this current call or if we are in call
 484         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 485                 ring_stop(lc->ringstream);
 486                 lc->ringstream=NULL;
 487         }
 488         linphone_call_stop_media_streams(call);
 489         if (lc->vtable.show!=NULL)
 490                 lc->vtable.show(lc);
 491         if (lc->vtable.display_status!=NULL)
 492                 lc->vtable.display_status(lc,_("Call terminated."));
 493
 494         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 495 }
 496
 497 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 498         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 499         char *msg486=_("User is busy.");
 500         char *msg480=_("User is temporarily unavailable.");
 501         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 502         char *msg600=_("User does not want to be disturbed.");
 503         char *msg603=_("Call declined.");
 504         const char *msg=details;
 505         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 506
 507         if (call==NULL){
 508                 ms_warning("Call faillure reported on already cleaned call ?");
 509                 return ;
 510         }
 511
 512         if (lc->vtable.show) lc->vtable.show(lc);
 513
 514         if (error==SalErrorNoResponse){
 515                 msg=_("No response.");
 516                 if (lc->vtable.display_status)
 517                         lc->vtable.display_status(lc,msg);
 518         }else if (error==SalErrorProtocol){
 519                 msg=details ? details : _("Protocol error.");
 520                 if (lc->vtable.display_status)
 521                         lc->vtable.display_status(lc, msg);
 522         }else if (error==SalErrorFailure){
 523                 switch(sr){
 524                         case SalReasonDeclined:
 525                                 msg=msg603;
 526                                 if (lc->vtable.display_status)
 527                                         lc->vtable.display_status(lc,msg603);
 528                         break;
 529                         case SalReasonBusy:
 530                                 msg=msg486;
 531                                 if (lc->vtable.display_status)
 532                                         lc->vtable.display_status(lc,msg486);
 533                         break;
 534                         case SalReasonRedirect:
 535                                 msg=_("Redirected");
 536                                 if (lc->vtable.display_status)
 537                                         lc->vtable.display_status(lc,msg);
 538                         break;
 539                         case SalReasonTemporarilyUnavailable:
 540                                 msg=msg480;
 541                                 if (lc->vtable.display_status)
 542                                         lc->vtable.display_status(lc,msg480);
 543                         break;
 544                         case SalReasonNotFound:
 545                                 if (lc->vtable.display_status)
 546                                         lc->vtable.display_status(lc,msg);
 547                         break;
 548                         case SalReasonDoNotDisturb:
 549                                 msg=msg600;
 550                                 if (lc->vtable.display_status)
 551                                         lc->vtable.display_status(lc,msg600);
 552                         break;
 553                         case SalReasonMedia:
 554                         //media_encryption_mandatory
 555                                 if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
 556                                         !linphone_core_is_media_encryption_mandatory(lc)) {
 557                                         int i;
 558                                         ms_message("Outgoing call failed with SRTP (SAVP) enabled - retrying with AVP");
 559                                         linphone_call_stop_media_streams(call);
 560                                         /* clear SRTP local params */
 561                                         call->params.media_encryption = LinphoneMediaEncryptionNone;
 562                                         for(i=0; i<call->localdesc->nstreams; i++) {
 563                                                 call->localdesc->streams[i].proto = SalProtoRtpAvp;
 564                                                 memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
 565                                         }
 566                                         linphone_core_start_invite(lc, call, NULL);
 567                                         return;
 568                                 }
 569                                 msg=_("No common codecs");
 570                                 if (lc->vtable.display_status)
 571                                         lc->vtable.display_status(lc,msg);
 572                         break;
 573                         default:
 574                                 if (lc->vtable.display_status)
 575                                         lc->vtable.display_status(lc,_("Call failed."));
 576                 }
 577         }
 578
 579         if (lc->ringstream!=NULL) {
 580                 ring_stop(lc->ringstream);
 581                 lc->ringstream=NULL;
 582         }
 583         linphone_call_stop_media_streams (call);
 584         if (sr == SalReasonDeclined) {
 585                 call->reason=LinphoneReasonDeclined;
 586                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 587         } else if (sr == SalReasonNotFound) {
 588                 call->reason=LinphoneReasonNotFound;
 589                 linphone_call_set_state(call,LinphoneCallError,"User not found.");
 590         } else {
 591                 linphone_call_set_state(call,LinphoneCallError,msg);
 592         }
 593 }
 594
 595 static void call_released(SalOp *op){
 596         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 597         if (call!=NULL){
 598                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 599         }else ms_error("call_released() for already destroyed call ?");
 600 }
 601
 602 static void auth_requested(SalOp *h, const char *realm, const char *username){
 603         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 604         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 605         LinphoneCall *call=is_a_linphone_call(sal_op_get_user_pointer(h));
 606
 607         if (call && call->ping_op==h){
 608                 /*don't request authentication for ping requests. Their purpose is just to get any
 609                  * answer to get the Via's received and rport parameters.
 610                  */
 611                 ms_message("auth_requested(): ignored for ping request.");
 612                 return;
 613         }
 614
 615         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 616
 617         if (ai && ai->works==FALSE && ai->usecount>=3){
 618                 /*case we tried 3 times to authenticate, without success */
 619                 /*Better is to stop (implemeted below in else statement), and retry later*/
 620                 if (ms_time(NULL)-ai->last_use_time>30){
 621                         ai->usecount=0; /*so that we can allow to retry */
 622                 }
 623         }
 624
 625         if (ai && (ai->works || ai->usecount<3)){
 626                 SalAuthInfo sai;
 627                 sai.username=ai->username;
 628                 sai.userid=ai->userid;
 629                 sai.realm=ai->realm;
 630                 sai.password=ai->passwd;
 631                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 632                 sal_op_authenticate(h,&sai);
 633                 ai->usecount++;
 634                 ai->last_use_time=ms_time(NULL);
 635         }else{
 636                 if (ai && ai->works==FALSE) {
 637                         sal_op_cancel_authentication(h);
 638                 }
 639                 if (lc->vtable.auth_info_requested)
 640                         lc->vtable.auth_info_requested(lc,realm,username);
 641         }
 642 }
 643
 644 static void auth_success(SalOp *h, const char *realm, const char *username){
 645         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 646         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 647         if (ai){
 648                 ms_message("%s/%s authentication works.",realm,username);
 649                 ai->works=TRUE;
 650         }
 651 }
 652
 653 static void register_success(SalOp *op, bool_t registered){
 654         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 655         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 656         char *msg;
 657
 658         if (cfg->deletion_date!=0){
 659                 ms_message("Registration success for removed proxy config, ignored");
 660                 return;
 661         }
 662         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 663         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 664                                         registered ? "Registration sucessful" : "Unregistration done");
 665         if (lc->vtable.display_status){
 666                 if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 667                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 668                 lc->vtable.display_status(lc,msg);
 669                 ms_free(msg);
 670         }
 671
 672 }
 673
 674 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 675         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 676         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 677
 678         if (cfg==NULL){
 679                 ms_warning("Registration failed for unknown proxy config.");
 680                 return ;
 681         }
 682         if (cfg->deletion_date!=0){
 683                 ms_message("Registration failed for removed proxy config, ignored");
 684                 return;
 685         }
 686         if (details==NULL)
 687                 details=_("no response timeout");
 688
 689         if (lc->vtable.display_status) {
 690                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 691                 lc->vtable.display_status(lc,msg);
 692                 ms_free(msg);
 693         }
 694         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 695                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 696         } else if (error == SalErrorNoResponse) {
 697                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 698         }
 699         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 700         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 701                 const char *realm=NULL,*username=NULL;
 702                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 703                         if (lc->vtable.auth_info_requested)
 704                                 lc->vtable.auth_info_requested(lc,realm,username);
 705                 }
 706         }
 707 }
 708
 709 static void vfu_request(SalOp *op){
 710 #ifdef VIDEO_ENABLED
 711         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 712         if (call==NULL){
 713                 ms_warning("VFU request but no call !");
 714                 return ;
 715         }
 716         if (call->videostream)
 717                 video_stream_send_vfu(call->videostream);
 718 #endif
 719 }
 720
 721 static void dtmf_received(SalOp *op, char dtmf){
 722         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 723         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 724         if (lc->vtable.dtmf_received != NULL)
 725                 lc->vtable.dtmf_received(lc, call, dtmf);
 726 }
 727
 728 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 729         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 730         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 731         if (call){
 732                 if (call->refer_to!=NULL){
 733                         ms_free(call->refer_to);
 734                 }
 735                 call->refer_to=ms_strdup(referto);
 736                 call->refer_pending=TRUE;
 737                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 738                 if (lc->vtable.display_status){
 739                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 740                         lc->vtable.display_status(lc,msg);
 741                         ms_free(msg);
 742                 }
 743                 if (call->state!=LinphoneCallPaused){
 744                         ms_message("Automatically pausing current call to accept transfer.");
 745                         linphone_core_pause_call(lc,call);
 746                 }
 747                 linphone_core_start_refered_call(lc,call);
 748                 sal_call_accept_refer(op);
 749         }else if (lc->vtable.refer_received){
 750                 lc->vtable.refer_received(lc,referto);
 751                 sal_call_accept_refer(op);
 752         }
 753 }
 754
 755 static void text_received(Sal *sal, const char *from, const char *msg){
 756         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 757         linphone_core_text_received(lc,from,msg);
 758 }
 759
 760 static void notify(SalOp *op, const char *from, const char *msg){
 761         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 762         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 763         ms_message("get a %s notify from %s",msg,from);
 764         if(lc->vtable.notify_recv)
 765                 lc->vtable.notify_recv(lc,call,from,msg);
 766 }
 767
 768 static void notify_presence(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg){
 769         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 770         linphone_notify_recv(lc,op,ss,status);
 771 }
 772
 773 static void subscribe_received(SalOp *op, const char *from){
 774         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 775         linphone_subscription_new(lc,op,from);
 776 }
 777
 778 static void subscribe_closed(SalOp *op, const char *from){
 779         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 780         linphone_subscription_closed(lc,op);
 781 }
 782
 783 static void ping_reply(SalOp *op){
 784         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 785         ms_message("ping reply !");
 786         if (call){
 787                 if (call->state==LinphoneCallOutgoingInit){
 788                         linphone_core_start_invite(call->core,call,NULL);
 789                 }
 790         }
 791         else
 792         {
 793                 ms_warning("ping reply without call attached...");
 794         }
 795 }
 796
 797 SalCallbacks linphone_sal_callbacks={
 798         call_received,
 799         call_ringing,
 800         call_accepted,
 801         call_ack,
 802         call_updating,
 803         call_terminated,
 804         call_failure,
 805         call_released,
 806         auth_requested,
 807         auth_success,
 808         register_success,
 809         register_failure,
 810         vfu_request,
 811         dtmf_received,
 812         refer_received,
 813         text_received,
 814         notify,
 815         notify_presence,
 816         subscribe_received,
 817         subscribe_closed,
 818         ping_reply
 819 };
 820
 821