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                         md=sal_call_get_final_media_description(h);
 247                         linphone_core_update_streams(lc,call,md);
 248                 }
 249                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
 250                         linphone_core_accept_call(lc,call);
 251                 }
 252         }
 253         linphone_call_unref(call);
 254
 255         ms_free(barmesg);
 256         ms_free(tmp);
 257 }
 258
 259 static void call_ringing(SalOp *h){
 260         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 261         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
 262         SalMediaDescription *md;
 263
 264         if (call==NULL) return;
 265
 266         if (lc->vtable.display_status)
 267                 lc->vtable.display_status(lc,_("Remote ringing."));
 268
 269         md=sal_call_get_final_media_description(h);
 270         if (md==NULL){
 271                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 272                         ring_stop(lc->ringstream);
 273                         lc->ringstream=NULL;
 274                         lc->dmfs_playing_start_time=0;
 275                 }
 276                 if (lc->ringstream!=NULL) return;       /*already ringing !*/
 277                 if (lc->sound_conf.play_sndcard!=NULL){
 278                         MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 279                         if (call->localdesc->streams[0].max_rate>0) ms_snd_card_set_preferred_sample_rate(ringcard, call->localdesc->streams[0].max_rate);
 280                         /*we release sound before playing ringback tone*/
 281                         if (call->audiostream)
 282                                 audio_stream_unprepare_sound(call->audiostream);
 283                         lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
 284                 }
 285                 ms_message("Remote ringing...");
 286                 if (lc->vtable.display_status)
 287                         lc->vtable.display_status(lc,_("Remote ringing..."));
 288                 linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
 289         }else{
 290                 /*accept early media */
 291                 if (call->audiostream && audio_stream_started(call->audiostream)){
 292                         /*streams already started */
 293                         ms_message("Early media already started.");
 294                         return;
 295                 }
 296                 if (lc->vtable.show) lc->vtable.show(lc);
 297                 if (lc->vtable.display_status)
 298                         lc->vtable.display_status(lc,_("Early media."));
 299                 linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
 300                 if (lc->ringstream!=NULL){
 301                         ring_stop(lc->ringstream);
 302                         lc->ringstream=NULL;
 303                 }
 304                 ms_message("Doing early media...");
 305                 linphone_core_update_streams(lc,call,md);
 306         }
 307 }
 308
 309 /*
 310  * could be reach :
 311  *  - when the call is accepted
 312  *  - when a request is accepted (pause, resume)
 313  */
 314 static void call_accepted(SalOp *op){
 315         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 316         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 317         SalMediaDescription *md;
 318
 319         if (call==NULL){
 320                 ms_warning("No call to accept.");
 321                 return ;
 322         }
 323
 324         md=sal_call_get_final_media_description(op);
 325
 326         if (call->state==LinphoneCallOutgoingProgress ||
 327             call->state==LinphoneCallOutgoingRinging ||
 328             call->state==LinphoneCallOutgoingEarlyMedia){
 329                 linphone_call_set_state(call,LinphoneCallConnected,"Connected");
 330                 if (call->referer) linphone_core_notify_refer_state(lc,call->referer,call);
 331         }
 332         if (md && !sal_media_description_empty(md)){
 333                 if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
 334                     sal_media_description_has_dir(md,SalStreamInactive)){
 335                         if (lc->vtable.display_status){
 336                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 337                                 char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
 338                                 lc->vtable.display_status(lc,msg);
 339                                 ms_free(tmp);
 340                                 ms_free(msg);
 341                         }
 342                         linphone_core_update_streams (lc,call,md);
 343                         linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
 344                         if (call->refer_pending)
 345                                 linphone_core_start_refered_call(lc,call);
 346                 }else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
 347                         /*we are put on hold when the call is initially accepted */
 348                         if (lc->vtable.display_status){
 349                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 350                                 char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
 351                                 lc->vtable.display_status(lc,msg);
 352                                 ms_free(tmp);
 353                                 ms_free(msg);
 354                         }
 355                         linphone_core_update_streams (lc,call,md);
 356                         linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
 357                 }else{
 358                         if (call->state==LinphoneCallStreamsRunning){
 359                                 /*media was running before, the remote as acceted a call modification (that is
 360                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 361                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 362                         }else{
 363                                 if (call->state==LinphoneCallResuming){
 364                                         if (lc->vtable.display_status){
 365                                                 lc->vtable.display_status(lc,_("Call resumed."));
 366                                         }
 367                                 }else{
 368                                         if (lc->vtable.display_status){
 369                                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 370                                                 char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
 371                                                 lc->vtable.display_status(lc,msg);
 372                                                 ms_free(tmp);
 373                                                 ms_free(msg);
 374                                         }
 375                                 }
 376                         }
 377                         linphone_core_update_streams (lc,call,md);
 378                         if (!call->current_params.in_conference)
 379                                 lc->current_call=call;
 380                         linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
 381                 }
 382         }else{
 383                 /*send a bye*/
 384                 ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
 385                 linphone_core_abort_call(lc,call,_("Incompatible, check codecs..."));
 386         }
 387 }
 388
 389 static void call_ack(SalOp *op){
 390         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 391         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 392         if (call==NULL){
 393                 ms_warning("No call to be ACK'd");
 394                 return ;
 395         }
 396         if (call->media_pending){
 397                 SalMediaDescription *md=sal_call_get_final_media_description(op);
 398                 if (md && !sal_media_description_empty(md)){
 399                         if (call->state==LinphoneCallStreamsRunning){
 400                                 /*media was running before, the remote as acceted a call modification (that is
 401                                         a reinvite made by us. We must notify the application this reinvite was accepted*/
 402                                 linphone_call_set_state(call, LinphoneCallUpdated, "Call updated");
 403                         }
 404                         linphone_core_update_streams (lc,call,md);
 405                         linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 406                 }else{
 407                         /*send a bye*/
 408                         ms_error("Incompatible SDP response received in ACK, need to abort the call");
 409                         linphone_core_abort_call(lc,call,"No codec intersection");
 410                         return;
 411                 }
 412         }
 413 }
 414
 415 static void call_accept_update(LinphoneCore *lc, LinphoneCall *call){
 416         SalMediaDescription *md;
 417         sal_call_accept(call->op);
 418         md=sal_call_get_final_media_description(call->op);
 419         if (md && !sal_media_description_empty(md))
 420                 linphone_core_update_streams(lc,call,md);
 421 }
 422
 423 static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
 424         call_accept_update(lc,call);
 425         if(lc->vtable.display_status)
 426                 lc->vtable.display_status(lc,_("We have been resumed."));
 427         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
 428         linphone_call_set_transfer_state(call, LinphoneCallIdle);
 429 }
 430
 431 static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
 432         call_accept_update(lc,call);
 433         /* we are being paused */
 434         if(lc->vtable.display_status)
 435                 lc->vtable.display_status(lc,_("We are paused by other party."));
 436         linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
 437 }
 438
 439 static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call){
 440         if(lc->vtable.display_status)
 441                 lc->vtable.display_status(lc,_("Call is updated by remote."));
 442         call->defer_update=FALSE;
 443         linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
 444         if (call->defer_update==FALSE){
 445                 linphone_core_accept_call_update(lc,call,NULL);
 446         }
 447 }
 448
 449 /* this callback is called when an incoming re-INVITE modifies the session*/
 450 static void call_updating(SalOp *op){
 451         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 452         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 453         SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
 454
 455         if (rmd==NULL){
 456                 /* case of a reINVITE without SDP */
 457                 call_accept_update(lc,call);
 458                 call->media_pending=TRUE;
 459                 return;
 460         }
 461
 462         switch(call->state){
 463                 case LinphoneCallPausedByRemote:
 464                         if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
 465                                 call_resumed(lc,call);
 466                         }
 467                 break;
 468                 case LinphoneCallStreamsRunning:
 469                 case LinphoneCallConnected:
 470                         if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
 471                                 call_paused_by_remote(lc,call);
 472                         }else{
 473                                 call_updated_by_remote(lc,call);
 474                         }
 475                 break;
 476                 default:
 477                         call_accept_update(lc,call);
 478         }
 479 }
 480
 481 static void call_terminated(SalOp *op, const char *from){
 482         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 483         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 484
 485         if (call==NULL) return;
 486
 487         if (linphone_call_get_state(call)==LinphoneCallEnd || linphone_call_get_state(call)==LinphoneCallError){
 488                 ms_warning("call_terminated: ignoring.");
 489                 return;
 490         }
 491         ms_message("Current call terminated...");
 492         //we stop the call only if we have this current call or if we are in call
 493         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 494                 ring_stop(lc->ringstream);
 495                 lc->ringstream=NULL;
 496         }
 497         linphone_call_stop_media_streams(call);
 498         if (lc->vtable.show!=NULL)
 499                 lc->vtable.show(lc);
 500         if (lc->vtable.display_status!=NULL)
 501                 lc->vtable.display_status(lc,_("Call terminated."));
 502
 503         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 504 }
 505
 506 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 507         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 508         char *msg486=_("User is busy.");
 509         char *msg480=_("User is temporarily unavailable.");
 510         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 511         char *msg600=_("User does not want to be disturbed.");
 512         char *msg603=_("Call declined.");
 513         const char *msg=details;
 514         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 515
 516         if (call==NULL){
 517                 ms_warning("Call faillure reported on already cleaned call ?");
 518                 return ;
 519         }
 520
 521         if (lc->vtable.show) lc->vtable.show(lc);
 522
 523         if (error==SalErrorNoResponse){
 524                 msg=_("No response.");
 525                 if (lc->vtable.display_status)
 526                         lc->vtable.display_status(lc,msg);
 527         }else if (error==SalErrorProtocol){
 528                 msg=details ? details : _("Protocol error.");
 529                 if (lc->vtable.display_status)
 530                         lc->vtable.display_status(lc, msg);
 531         }else if (error==SalErrorFailure){
 532                 switch(sr){
 533                         case SalReasonDeclined:
 534                                 msg=msg603;
 535                                 if (lc->vtable.display_status)
 536                                         lc->vtable.display_status(lc,msg603);
 537                         break;
 538                         case SalReasonBusy:
 539                                 msg=msg486;
 540                                 if (lc->vtable.display_status)
 541                                         lc->vtable.display_status(lc,msg486);
 542                         break;
 543                         case SalReasonRedirect:
 544                                 msg=_("Redirected");
 545                                 if (lc->vtable.display_status)
 546                                         lc->vtable.display_status(lc,msg);
 547                         break;
 548                         case SalReasonTemporarilyUnavailable:
 549                                 msg=msg480;
 550                                 if (lc->vtable.display_status)
 551                                         lc->vtable.display_status(lc,msg480);
 552                         break;
 553                         case SalReasonNotFound:
 554                                 if (lc->vtable.display_status)
 555                                         lc->vtable.display_status(lc,msg);
 556                         break;
 557                         case SalReasonDoNotDisturb:
 558                                 msg=msg600;
 559                                 if (lc->vtable.display_status)
 560                                         lc->vtable.display_status(lc,msg600);
 561                         break;
 562                         case SalReasonMedia:
 563                         //media_encryption_mandatory
 564                                 if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
 565                                         !linphone_core_is_media_encryption_mandatory(lc)) {
 566                                         int i;
 567                                         ms_message("Outgoing call failed with SRTP (SAVP) enabled - retrying with AVP");
 568                                         linphone_call_stop_media_streams(call);
 569                                         if (call->state==LinphoneCallOutgoingInit || call->state==LinphoneCallOutgoingProgress){
 570                                                 /* clear SRTP local params */
 571                                                 call->params.media_encryption = LinphoneMediaEncryptionNone;
 572                                                 for(i=0; i<call->localdesc->nstreams; i++) {
 573                                                         call->localdesc->streams[i].proto = SalProtoRtpAvp;
 574                                                         memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
 575                                                 }
 576                                                 linphone_core_start_invite(lc, call, NULL);
 577                                         }
 578                                         return;
 579                                 }
 580                                 msg=_("Incompatible media parameters.");
 581                                 if (lc->vtable.display_status)
 582                                         lc->vtable.display_status(lc,msg);
 583                         break;
 584                         default:
 585                                 if (lc->vtable.display_status)
 586                                         lc->vtable.display_status(lc,_("Call failed."));
 587                 }
 588         }
 589
 590         if (lc->ringstream!=NULL) {
 591                 ring_stop(lc->ringstream);
 592                 lc->ringstream=NULL;
 593         }
 594         linphone_call_stop_media_streams (call);
 595         if (call->referer && linphone_call_get_state(call->referer)==LinphoneCallPaused && call->referer->was_automatically_paused){
 596                 /*resume to the call that send us the refer automatically*/
 597                 linphone_core_resume_call(lc,call->referer);
 598         }
 599         if (sr == SalReasonDeclined) {
 600                 call->reason=LinphoneReasonDeclined;
 601                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 602         } else if (sr == SalReasonNotFound) {
 603                 call->reason=LinphoneReasonNotFound;
 604                 linphone_call_set_state(call,LinphoneCallError,"User not found.");
 605         } else {
 606                 linphone_call_set_state(call,LinphoneCallError,msg);
 607         }
 608 }
 609
 610 static void call_released(SalOp *op){
 611         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 612         if (call!=NULL){
 613                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 614         }else ms_error("call_released() for already destroyed call ?");
 615 }
 616
 617 static void auth_requested(SalOp *h, const char *realm, const char *username){
 618         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 619         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 620         LinphoneCall *call=is_a_linphone_call(sal_op_get_user_pointer(h));
 621
 622         if (call && call->ping_op==h){
 623                 /*don't request authentication for ping requests. Their purpose is just to get any
 624                  * answer to get the Via's received and rport parameters.
 625                  */
 626                 ms_message("auth_requested(): ignored for ping request.");
 627                 return;
 628         }
 629
 630         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 631
 632         if (ai && ai->works==FALSE && ai->usecount>=3){
 633                 /*case we tried 3 times to authenticate, without success */
 634                 /*Better is to stop (implemeted below in else statement), and retry later*/
 635                 if (ms_time(NULL)-ai->last_use_time>30){
 636                         ai->usecount=0; /*so that we can allow to retry */
 637                 }
 638         }
 639
 640         if (ai && (ai->works || ai->usecount<3)){
 641                 SalAuthInfo sai;
 642                 sai.username=ai->username;
 643                 sai.userid=ai->userid;
 644                 sai.realm=ai->realm;
 645                 sai.password=ai->passwd;
 646                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 647                 sal_op_authenticate(h,&sai);
 648                 ai->usecount++;
 649                 ai->last_use_time=ms_time(NULL);
 650         }else{
 651                 if (ai && ai->works==FALSE) {
 652                         sal_op_cancel_authentication(h);
 653                 }
 654                 if (lc->vtable.auth_info_requested)
 655                         lc->vtable.auth_info_requested(lc,realm,username);
 656         }
 657 }
 658
 659 static void auth_success(SalOp *h, const char *realm, const char *username){
 660         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 661         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 662         if (ai){
 663                 ms_message("%s/%s authentication works.",realm,username);
 664                 ai->works=TRUE;
 665         }
 666 }
 667
 668 static void register_success(SalOp *op, bool_t registered){
 669         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 670         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 671         char *msg;
 672
 673         if (cfg->deletion_date!=0){
 674                 ms_message("Registration success for removed proxy config, ignored");
 675                 return;
 676         }
 677         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 678         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 679                                         registered ? "Registration sucessful" : "Unregistration done");
 680         if (lc->vtable.display_status){
 681                 if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 682                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 683                 lc->vtable.display_status(lc,msg);
 684                 ms_free(msg);
 685         }
 686
 687 }
 688
 689 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 690         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 691         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 692
 693         if (cfg==NULL){
 694                 ms_warning("Registration failed for unknown proxy config.");
 695                 return ;
 696         }
 697         if (cfg->deletion_date!=0){
 698                 ms_message("Registration failed for removed proxy config, ignored");
 699                 return;
 700         }
 701         if (details==NULL)
 702                 details=_("no response timeout");
 703
 704         if (lc->vtable.display_status) {
 705                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 706                 lc->vtable.display_status(lc,msg);
 707                 ms_free(msg);
 708         }
 709         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 710                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 711         } else if (error == SalErrorNoResponse) {
 712                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 713         }
 714         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 715         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 716                 const char *realm=NULL,*username=NULL;
 717                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 718                         if (lc->vtable.auth_info_requested)
 719                                 lc->vtable.auth_info_requested(lc,realm,username);
 720                 }
 721         }
 722 }
 723
 724 static void vfu_request(SalOp *op){
 725 #ifdef VIDEO_ENABLED
 726         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 727         if (call==NULL){
 728                 ms_warning("VFU request but no call !");
 729                 return ;
 730         }
 731         if (call->videostream)
 732                 video_stream_send_vfu(call->videostream);
 733 #endif
 734 }
 735
 736 static void dtmf_received(SalOp *op, char dtmf){
 737         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 738         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 739         if (lc->vtable.dtmf_received != NULL)
 740                 lc->vtable.dtmf_received(lc, call, dtmf);
 741 }
 742
 743 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 744         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 745         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 746         if (call){
 747                 if (call->refer_to!=NULL){
 748                         ms_free(call->refer_to);
 749                 }
 750                 call->refer_to=ms_strdup(referto);
 751                 call->refer_pending=TRUE;
 752                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 753                 if (lc->vtable.display_status){
 754                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 755                         lc->vtable.display_status(lc,msg);
 756                         ms_free(msg);
 757                 }
 758                 if (call->state!=LinphoneCallPaused){
 759                         ms_message("Automatically pausing current call to accept transfer.");
 760                         linphone_core_pause_call(lc,call);
 761                         call->was_automatically_paused=TRUE;
 762                         /*then we will start the refered when the pause is accepted, in order to serialize transactions within the dialog.
 763                          * Indeed we need to avoid to send a NOTIFY to inform about of state of the refered call while the pause isn't completed.
 764                         **/
 765                 }else linphone_core_start_refered_call(lc,call);
 766         }else if (lc->vtable.refer_received){
 767                 lc->vtable.refer_received(lc,referto);
 768         }
 769 }
 770
 771 static void text_received(Sal *sal, const char *from, const char *msg){
 772         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 773         linphone_core_text_received(lc,from,msg);
 774 }
 775
 776 static void notify(SalOp *op, const char *from, const char *msg){
 777         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 778         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 779         ms_message("get a %s notify from %s",msg,from);
 780         if(lc->vtable.notify_recv)
 781                 lc->vtable.notify_recv(lc,call,from,msg);
 782 }
 783
 784 static void notify_presence(SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status, const char *msg){
 785         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 786         linphone_notify_recv(lc,op,ss,status);
 787 }
 788
 789 static void subscribe_received(SalOp *op, const char *from){
 790         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 791         linphone_subscription_new(lc,op,from);
 792 }
 793
 794 static void subscribe_closed(SalOp *op, const char *from){
 795         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 796         linphone_subscription_closed(lc,op);
 797 }
 798
 799 static void ping_reply(SalOp *op){
 800         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 801         ms_message("ping reply !");
 802         if (call){
 803                 if (call->state==LinphoneCallOutgoingInit){
 804                         linphone_core_start_invite(call->core,call,NULL);
 805                 }
 806         }
 807         else
 808         {
 809                 ms_warning("ping reply without call attached...");
 810         }
 811 }
 812
 813 static void notify_refer(SalOp *op, SalReferStatus status){
 814         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 815         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 816         LinphoneCallState cstate;
 817         if (call==NULL) {
 818                 ms_warning("Receiving notify_refer for unknown call.");
 819                 return ;
 820         }
 821         switch(status){
 822                 case SalReferTrying:
 823                         cstate=LinphoneCallOutgoingProgress;
 824                 break;
 825                 case SalReferSuccess:
 826                         cstate=LinphoneCallConnected;
 827                 break;
 828                 case SalReferFailed:
 829                         cstate=LinphoneCallError;
 830                 break;
 831                 default:
 832                         cstate=LinphoneCallError;
 833         }
 834         linphone_call_set_transfer_state(call, cstate);
 835         if (cstate==LinphoneCallConnected){
 836                 /*automatically terminate the call as the transfer is complete.*/
 837                 linphone_core_terminate_call(lc,call);
 838         }
 839 }
 840
 841 SalCallbacks linphone_sal_callbacks={
 842         call_received,
 843         call_ringing,
 844         call_accepted,
 845         call_ack,
 846         call_updating,
 847         call_terminated,
 848         call_failure,
 849         call_released,
 850         auth_requested,
 851         auth_success,
 852         register_success,
 853         register_failure,
 854         vfu_request,
 855         dtmf_received,
 856         refer_received,
 857         text_received,
 858         notify,
 859         notify_presence,
 860         notify_refer,
 861         subscribe_received,
 862         subscribe_closed,
 863         ping_reply
 864 };
 865
 866