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

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