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         switch(call->state){
 447                 case LinphoneCallPausedByRemote:
 448                         if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
 449                                 call_resumed(lc,call);
 450                         }
 451                 break;
 452                 case LinphoneCallStreamsRunning:
 453                 case LinphoneCallConnected:
 454                         if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
 455                                 call_paused_by_remote(lc,call);
 456                         }else{
 457                                 call_updated_by_remote(lc,call);
 458                         }
 459                 break;
 460                 default:
 461                         call_accept_update(lc,call);
 462         }
 463 }
 464
 465 static void call_terminated(SalOp *op, const char *from){
 466         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 467         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 468
 469         if (call==NULL) return;
 470
 471         if (linphone_call_get_state(call)==LinphoneCallEnd || linphone_call_get_state(call)==LinphoneCallError){
 472                 ms_warning("call_terminated: ignoring.");
 473                 return;
 474         }
 475         ms_message("Current call terminated...");
 476         //we stop the call only if we have this current call or if we are in call
 477         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 478                 ring_stop(lc->ringstream);
 479                 lc->ringstream=NULL;
 480         }
 481         linphone_call_stop_media_streams(call);
 482         if (lc->vtable.show!=NULL)
 483                 lc->vtable.show(lc);
 484         if (lc->vtable.display_status!=NULL)
 485                 lc->vtable.display_status(lc,_("Call terminated."));
 486
 487         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 488 }
 489
 490 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 491         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 492         char *msg486=_("User is busy.");
 493         char *msg480=_("User is temporarily unavailable.");
 494         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 495         char *msg600=_("User does not want to be disturbed.");
 496         char *msg603=_("Call declined.");
 497         const char *msg=details;
 498         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 499
 500         if (call==NULL){
 501                 ms_warning("Call faillure reported on already cleaned call ?");
 502                 return ;
 503         }
 504
 505         if (lc->vtable.show) lc->vtable.show(lc);
 506
 507         if (error==SalErrorNoResponse){
 508                 msg=_("No response.");
 509                 if (lc->vtable.display_status)
 510                         lc->vtable.display_status(lc,msg);
 511         }else if (error==SalErrorProtocol){
 512                 msg=details ? details : _("Protocol error.");
 513                 if (lc->vtable.display_status)
 514                         lc->vtable.display_status(lc, msg);
 515         }else if (error==SalErrorFailure){
 516                 switch(sr){
 517                         case SalReasonDeclined:
 518                                 msg=msg603;
 519                                 if (lc->vtable.display_status)
 520                                         lc->vtable.display_status(lc,msg603);
 521                         break;
 522                         case SalReasonBusy:
 523                                 msg=msg486;
 524                                 if (lc->vtable.display_status)
 525                                         lc->vtable.display_status(lc,msg486);
 526                         break;
 527                         case SalReasonRedirect:
 528                                 msg=_("Redirected");
 529                                 if (lc->vtable.display_status)
 530                                         lc->vtable.display_status(lc,msg);
 531                         break;
 532                         case SalReasonTemporarilyUnavailable:
 533                                 msg=msg480;
 534                                 if (lc->vtable.display_status)
 535                                         lc->vtable.display_status(lc,msg480);
 536                         break;
 537                         case SalReasonNotFound:
 538                                 if (lc->vtable.display_status)
 539                                         lc->vtable.display_status(lc,msg);
 540                         break;
 541                         case SalReasonDoNotDisturb:
 542                                 msg=msg600;
 543                                 if (lc->vtable.display_status)
 544                                         lc->vtable.display_status(lc,msg600);
 545                         break;
 546                         case SalReasonMedia:
 547                         //media_encryption_mandatory
 548                                 if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
 549                                         !linphone_core_is_media_encryption_mandatory(lc)) {
 550                                         int i;
 551                                         ms_message("Outgoing call failed with SRTP (SAVP) enabled - retrying with AVP");
 552                                         linphone_call_stop_media_streams(call);
 553                                         /* clear SRTP local params */
 554                                         call->params.media_encryption = LinphoneMediaEncryptionNone;
 555                                         for(i=0; i<call->localdesc->nstreams; i++) {
 556                                                 call->localdesc->streams[i].proto = SalProtoRtpAvp;
 557                                                 memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
 558                                         }
 559                                         linphone_core_start_invite(lc, call, NULL);
 560                                         return;
 561                                 }
 562                                 msg=_("No common codecs");
 563                                 if (lc->vtable.display_status)
 564                                         lc->vtable.display_status(lc,msg);
 565                         break;
 566                         default:
 567                                 if (lc->vtable.display_status)
 568                                         lc->vtable.display_status(lc,_("Call failed."));
 569                 }
 570         }
 571
 572         if (lc->ringstream!=NULL) {
 573                 ring_stop(lc->ringstream);
 574                 lc->ringstream=NULL;
 575         }
 576         linphone_call_stop_media_streams (call);
 577         if (sr == SalReasonDeclined) {
 578                 call->reason=LinphoneReasonDeclined;
 579                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 580         } else if (sr == SalReasonNotFound) {
 581                 call->reason=LinphoneReasonNotFound;
 582                 linphone_call_set_state(call,LinphoneCallError,"User not found.");
 583         } else {
 584                 linphone_call_set_state(call,LinphoneCallError,msg);
 585         }
 586 }
 587
 588 static void call_released(SalOp *op){
 589         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 590         if (call!=NULL){
 591                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 592         }else ms_error("call_released() for already destroyed call ?");
 593 }
 594
 595 static void auth_requested(SalOp *h, const char *realm, const char *username){
 596         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 597         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 598         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 599
 600         if (ai && ai->works==FALSE && ai->usecount>=3){
 601                 /*case we tried 3 times to authenticate, without success */
 602                 /*Better is to stop (implemeted below in else statement), and retry later*/
 603                 if (ms_time(NULL)-ai->last_use_time>30){
 604                         ai->usecount=0; /*so that we can allow to retry */
 605                 }
 606         }
 607
 608         if (ai && (ai->works || ai->usecount<3)){
 609                 SalAuthInfo sai;
 610                 sai.username=ai->username;
 611                 sai.userid=ai->userid;
 612                 sai.realm=ai->realm;
 613                 sai.password=ai->passwd;
 614                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 615                 sal_op_authenticate(h,&sai);
 616                 ai->usecount++;
 617                 ai->last_use_time=ms_time(NULL);
 618         }else{
 619                 if (ai && ai->works==FALSE) {
 620                         sal_op_cancel_authentication(h);
 621                 }
 622                 if (lc->vtable.auth_info_requested)
 623                         lc->vtable.auth_info_requested(lc,realm,username);
 624         }
 625 }
 626
 627 static void auth_success(SalOp *h, const char *realm, const char *username){
 628         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 629         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 630         if (ai){
 631                 ms_message("%s/%s authentication works.",realm,username);
 632                 ai->works=TRUE;
 633         }
 634 }
 635
 636 static void register_success(SalOp *op, bool_t registered){
 637         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 638         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 639         char *msg;
 640
 641         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 642         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 643                                         registered ? "Registration sucessful" : "Unregistration done");
 644         if (lc->vtable.display_status){
 645                 if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 646                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 647                 lc->vtable.display_status(lc,msg);
 648                 ms_free(msg);
 649         }
 650
 651 }
 652
 653 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 654         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 655         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 656
 657         if (cfg==NULL){
 658                 ms_warning("Registration failed for unknown proxy config.");
 659                 return ;
 660         }
 661         if (details==NULL)
 662                 details=_("no response timeout");
 663
 664         if (lc->vtable.display_status) {
 665                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 666                 lc->vtable.display_status(lc,msg);
 667                 ms_free(msg);
 668         }
 669         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 670                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 671         } else if (error == SalErrorNoResponse) {
 672                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 673         }
 674         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 675         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 676                 const char *realm=NULL,*username=NULL;
 677                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 678                         if (lc->vtable.auth_info_requested)
 679                                 lc->vtable.auth_info_requested(lc,realm,username);
 680                 }
 681         }
 682 }
 683
 684 static void vfu_request(SalOp *op){
 685 #ifdef VIDEO_ENABLED
 686         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 687         if (call==NULL){
 688                 ms_warning("VFU request but no call !");
 689                 return ;
 690         }
 691         if (call->videostream)
 692                 video_stream_send_vfu(call->videostream);
 693 #endif
 694 }
 695
 696 static void dtmf_received(SalOp *op, char dtmf){
 697         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 698         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 699         if (lc->vtable.dtmf_received != NULL)
 700                 lc->vtable.dtmf_received(lc, call, dtmf);
 701 }
 702
 703 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 704         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 705         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 706         if (call){
 707                 if (call->refer_to!=NULL){
 708                         ms_free(call->refer_to);
 709                 }
 710                 call->refer_to=ms_strdup(referto);
 711                 call->refer_pending=TRUE;
 712                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 713                 if (lc->vtable.display_status){
 714                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 715                         lc->vtable.display_status(lc,msg);
 716                         ms_free(msg);
 717                 }
 718                 if (call->state!=LinphoneCallPaused){
 719                         ms_message("Automatically pausing current call to accept transfer.");
 720                         linphone_core_pause_call(lc,call);
 721                 }
 722                 linphone_core_start_refered_call(lc,call);
 723                 sal_call_accept_refer(op);
 724         }else if (lc->vtable.refer_received){
 725                 lc->vtable.refer_received(lc,referto);
 726                 sal_call_accept_refer(op);
 727         }
 728 }
 729
 730 static void text_received(Sal *sal, const char *from, const char *msg){
 731         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 732         linphone_core_text_received(lc,from,msg);
 733 }
 734
 735 static void notify(SalOp *op, const char *from, const char *msg){
 736         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 737         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 738         ms_message("get a %s notify from %s",msg,from);
 739         if(lc->vtable.notify_recv)
 740                 lc->vtable.notify_recv(lc,call,from,msg);
 741 }
 742
 743 static void notify_presence(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg){
 744         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 745         linphone_notify_recv(lc,op,ss,status);
 746 }
 747
 748 static void subscribe_received(SalOp *op, const char *from){
 749         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 750         linphone_subscription_new(lc,op,from);
 751 }
 752
 753 static void subscribe_closed(SalOp *op, const char *from){
 754         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 755         linphone_subscription_closed(lc,op);
 756 }
 757
 758 static void ping_reply(SalOp *op){
 759         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 760         ms_message("ping reply !");
 761         if (call){
 762                 if (call->state==LinphoneCallOutgoingInit){
 763                         linphone_core_start_invite(call->core,call,NULL);
 764                 }
 765         }
 766         else
 767         {
 768                 ms_warning("ping reply without call attached...");
 769         }
 770 }
 771
 772 SalCallbacks linphone_sal_callbacks={
 773         call_received,
 774         call_ringing,
 775         call_accepted,
 776         call_ack,
 777         call_updating,
 778         call_terminated,
 779         call_failure,
 780         call_released,
 781         auth_requested,
 782         auth_success,
 783         register_success,
 784         register_failure,
 785         vfu_request,
 786         dtmf_received,
 787         refer_received,
 788         text_received,
 789         notify,
 790         notify_presence,
 791         subscribe_received,
 792         subscribe_closed,
 793         ping_reply
 794 };
 795
 796