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) || (call->videostream && call->videostream->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         LinphoneCall *call;
 144         const char *from,*to;
 145         LinphoneAddress *from_addr, *to_addr;
 146         bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",TRUE);
 147
 148         /* first check if we can answer successfully to this invite */
 149         if (lc->presence_mode==LinphoneStatusBusy ||
 150             lc->presence_mode==LinphoneStatusOffline ||
 151             lc->presence_mode==LinphoneStatusDoNotDisturb ||
 152             lc->presence_mode==LinphoneStatusMoved){
 153                 if (lc->presence_mode==LinphoneStatusBusy )
 154                         sal_call_decline(h,SalReasonBusy,NULL);
 155                 else if (lc->presence_mode==LinphoneStatusOffline)
 156                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 157                 else if (lc->presence_mode==LinphoneStatusDoNotDisturb)
 158                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 159                 else if (lc->alt_contact!=NULL && lc->presence_mode==LinphoneStatusMoved)
 160                         sal_call_decline(h,SalReasonRedirect,lc->alt_contact);
 161                 sal_op_release(h);
 162                 return;
 163         }
 164         if (!linphone_core_can_we_add_call(lc)){/*busy*/
 165                 sal_call_decline(h,SalReasonBusy,NULL);
 166                 sal_op_release(h);
 167                 return;
 168         }
 169         from=sal_op_get_from(h);
 170         to=sal_op_get_to(h);
 171         from_addr=linphone_address_new(from);
 172         to_addr=linphone_address_new(to);
 173
 174         if ((already_a_call_with_remote_address(lc,from_addr) && prevent_colliding_calls) || already_a_call_pending(lc)){
 175                 ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
 176                 sal_call_decline(h,SalReasonBusy,NULL);
 177                 sal_op_release(h);
 178                 linphone_address_destroy(from_addr);
 179                 linphone_address_destroy(to_addr);
 180                 return;
 181         }
 182
 183         call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
 184
 185         /* the call is acceptable so we can now add it to our list */
 186         linphone_core_add_call(lc,call);
 187         linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
 188
 189         if ((linphone_core_get_firewall_policy(lc) == LinphonePolicyUseIce) && (call->ice_session != NULL)) {
 190                 /* Defer ringing until the end of the ICE candidates gathering process. */
 191                 ms_message("Defer ringing to gather ICE candidates");
 192                 return;
 193         }
 194
 195         linphone_core_notify_incoming_call(lc,call);
 196 }
 197
 198 static void call_ringing(SalOp *h){
 199         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 200         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
 201         SalMediaDescription *md;
 202
 203         if (call==NULL) return;
 204
 205         if (lc->vtable.display_status)
 206                 lc->vtable.display_status(lc,_("Remote ringing."));
 207
 208         md=sal_call_get_final_media_description(h);
 209         if (md==NULL){
 210                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 211                         ring_stop(lc->ringstream);
 212                         lc->ringstream=NULL;
 213                         lc->dmfs_playing_start_time=0;
 214                 }
 215                 if (lc->ringstream!=NULL) return;       /*already ringing !*/
 216                 if (lc->sound_conf.play_sndcard!=NULL){
 217                         MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 218                         if (call->localdesc->streams[0].max_rate>0) ms_snd_card_set_preferred_sample_rate(ringcard, call->localdesc->streams[0].max_rate);
 219                         /*we release sound before playing ringback tone*/
 220                         if (call->audiostream)
 221                                 audio_stream_unprepare_sound(call->audiostream);
 222                         lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
 223                 }
 224                 ms_message("Remote ringing...");
 225                 if (lc->vtable.display_status)
 226                         lc->vtable.display_status(lc,_("Remote ringing..."));
 227                 linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
 228         }else{
 229                 /*accept early media */
 230                 if (call->audiostream && audio_stream_started(call->audiostream)){
 231                         /*streams already started */
 232                         ms_message("Early media already started.");
 233                         return;
 234                 }
 235                 if (lc->vtable.show) lc->vtable.show(lc);
 236                 if (lc->vtable.display_status)
 237                         lc->vtable.display_status(lc,_("Early media."));
 238                 linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
 239                 if (lc->ringstream!=NULL){
 240                         ring_stop(lc->ringstream);
 241                         lc->ringstream=NULL;
 242                 }
 243                 ms_message("Doing early media...");
 244                 linphone_core_update_streams(lc,call,md);
 245         }
 246 }
 247
 248 /*
 249  * could be reach :
 250  *  - when the call is accepted
 251  *  - when a request is accepted (pause, resume)
 252  */
 253 static void call_accepted(SalOp *op){
 254         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 255         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 256         SalMediaDescription *md;
 257
 258         if (call==NULL){
 259                 ms_warning("No call to accept.");
 260                 return ;
 261         }
 262
 263         /* Handle remote ICE attributes if any. */
 264         if (call->ice_session != NULL) {
 265                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(op));
 266         }
 267
 268         md=sal_call_get_final_media_description(op);
 269         call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
 270
 271         if (call->state==LinphoneCallOutgoingProgress ||
 272             call->state==LinphoneCallOutgoingRinging ||
 273             call->state==LinphoneCallOutgoingEarlyMedia){
 274                 linphone_call_set_state(call,LinphoneCallConnected,"Connected");
 275                 if (call->referer) linphone_core_notify_refer_state(lc,call->referer,call);
 276         }
 277         if (md && !sal_media_description_empty(md)){
 278                 if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
 279                     sal_media_description_has_dir(md,SalStreamInactive)){
 280                         if (lc->vtable.display_status){
 281                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 282                                 char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
 283                                 lc->vtable.display_status(lc,msg);
 284                                 ms_free(tmp);
 285                                 ms_free(msg);
 286                         }
 287                         linphone_core_update_streams (lc,call,md);
 288                         linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
 289                         if (call->refer_pending)
 290                                 linphone_core_start_refered_call(lc,call);
 291                 }else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
 292                         /*we are put on hold when the call is initially accepted */
 293                         if (lc->vtable.display_status){
 294                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 295                                 char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
 296                                 lc->vtable.display_status(lc,msg);
 297                                 ms_free(tmp);
 298                                 ms_free(msg);
 299                         }
 300                         linphone_core_update_streams (lc,call,md);
 301                         linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
 302                 }else{
 303                         if (call->state!=LinphoneCallUpdating){
 304                                 if (call->state==LinphoneCallResuming){
 305                                         if (lc->vtable.display_status){
 306                                                 lc->vtable.display_status(lc,_("Call resumed."));
 307                                         }
 308                                 }else{
 309                                         if (lc->vtable.display_status){
 310                                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 311                                                 char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
 312                                                 lc->vtable.display_status(lc,msg);
 313                                                 ms_free(tmp);
 314                                                 ms_free(msg);
 315                                         }
 316                                 }
 317                         }
 318                         linphone_core_update_streams (lc,call,md);
 319                         if (!call->current_params.in_conference)
 320                                 lc->current_call=call;
 321                         linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
 322                 }
 323         }else{
 324                 /*send a bye*/
 325                 ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
 326                 linphone_core_abort_call(lc,call,_("Incompatible, check codecs..."));
 327         }
 328 }
 329
 330 static void call_ack(SalOp *op){
 331         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 332         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 333         if (call==NULL){
 334                 ms_warning("No call to be ACK'd");
 335                 return ;
 336         }
 337         if (call->media_pending){
 338                 SalMediaDescription *md=sal_call_get_final_media_description(op);
 339                 if (md && !sal_media_description_empty(md)){
 340                         linphone_core_update_streams (lc,call,md);
 341                         linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 342                 }else{
 343                         /*send a bye*/
 344                         ms_error("Incompatible SDP response received in ACK, need to abort the call");
 345                         linphone_core_abort_call(lc,call,"No codec intersection");
 346                         return;
 347                 }
 348         }
 349 }
 350
 351 static void call_accept_update(LinphoneCore *lc, LinphoneCall *call){
 352         SalMediaDescription *md;
 353         SalMediaDescription *rmd=sal_call_get_remote_media_description(call->op);
 354         if ((rmd!=NULL) && (call->ice_session!=NULL)) {
 355                 linphone_core_update_ice_from_remote_media_description(call,rmd);
 356                 linphone_core_update_local_media_description_from_ice(call->localdesc,call->ice_session);
 357         }
 358         sal_call_accept(call->op);
 359         md=sal_call_get_final_media_description(call->op);
 360         if (md && !sal_media_description_empty(md))
 361                 linphone_core_update_streams(lc,call,md);
 362 }
 363
 364 static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
 365         call_accept_update(lc,call);
 366         if(lc->vtable.display_status)
 367                 lc->vtable.display_status(lc,_("We have been resumed."));
 368         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
 369         linphone_call_set_transfer_state(call, LinphoneCallIdle);
 370 }
 371
 372 static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
 373         call_accept_update(lc,call);
 374         /* we are being paused */
 375         if(lc->vtable.display_status)
 376                 lc->vtable.display_status(lc,_("We are paused by other party."));
 377         linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
 378 }
 379
 380 static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call){
 381         if(lc->vtable.display_status)
 382                 lc->vtable.display_status(lc,_("Call is updated by remote."));
 383         call->defer_update=FALSE;
 384         linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
 385         if (call->defer_update==FALSE){
 386                 linphone_core_accept_call_update(lc,call,NULL);
 387         }
 388 }
 389
 390 /* this callback is called when an incoming re-INVITE modifies the session*/
 391 static void call_updating(SalOp *op){
 392         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 393         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 394         SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
 395
 396         if (rmd==NULL){
 397                 /* case of a reINVITE without SDP */
 398                 call_accept_update(lc,call);
 399                 call->media_pending=TRUE;
 400                 return;
 401         }
 402
 403         switch(call->state){
 404                 case LinphoneCallPausedByRemote:
 405                         if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
 406                                 call_resumed(lc,call);
 407                         }else call_paused_by_remote(lc,call);
 408                 break;
 409                 case LinphoneCallStreamsRunning:
 410                 case LinphoneCallConnected:
 411                         if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
 412                                 call_paused_by_remote(lc,call);
 413                         }else{
 414                                 call_updated_by_remote(lc,call);
 415                         }
 416                 break;
 417                 default:
 418                         call_accept_update(lc,call);
 419         }
 420 }
 421
 422 static void call_terminated(SalOp *op, const char *from){
 423         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 424         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 425
 426         if (call==NULL) return;
 427
 428         switch(linphone_call_get_state(call)){
 429                 case LinphoneCallEnd:
 430                 case LinphoneCallError:
 431                         ms_warning("call_terminated: ignoring.");
 432                         return;
 433                 break;
 434                 case LinphoneCallIncomingReceived:
 435                 case LinphoneCallIncomingEarlyMedia:
 436                         call->reason=LinphoneReasonNotAnswered;
 437                 break;
 438                 default:
 439                 break;
 440         }
 441         ms_message("Current call terminated...");
 442         //we stop the call only if we have this current call or if we are in call
 443         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 444                 ring_stop(lc->ringstream);
 445                 lc->ringstream=NULL;
 446         }
 447         linphone_call_stop_media_streams(call);
 448         if (lc->vtable.show!=NULL)
 449                 lc->vtable.show(lc);
 450         if (lc->vtable.display_status!=NULL)
 451                 lc->vtable.display_status(lc,_("Call terminated."));
 452
 453         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 454 }
 455
 456 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 457         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 458         char *msg486=_("User is busy.");
 459         char *msg480=_("User is temporarily unavailable.");
 460         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 461         char *msg600=_("User does not want to be disturbed.");
 462         char *msg603=_("Call declined.");
 463         const char *msg=details;
 464         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 465
 466         if (call==NULL){
 467                 ms_warning("Call faillure reported on already cleaned call ?");
 468                 return ;
 469         }
 470
 471         if (lc->vtable.show) lc->vtable.show(lc);
 472
 473         if (error==SalErrorNoResponse){
 474                 msg=_("No response.");
 475                 if (lc->vtable.display_status)
 476                         lc->vtable.display_status(lc,msg);
 477         }else if (error==SalErrorProtocol){
 478                 msg=details ? details : _("Protocol error.");
 479                 if (lc->vtable.display_status)
 480                         lc->vtable.display_status(lc, msg);
 481         }else if (error==SalErrorFailure){
 482                 switch(sr){
 483                         case SalReasonDeclined:
 484                                 msg=msg603;
 485                                 if (lc->vtable.display_status)
 486                                         lc->vtable.display_status(lc,msg603);
 487                         break;
 488                         case SalReasonBusy:
 489                                 msg=msg486;
 490                                 if (lc->vtable.display_status)
 491                                         lc->vtable.display_status(lc,msg486);
 492                         break;
 493                         case SalReasonRedirect:
 494                                 msg=_("Redirected");
 495                                 if (lc->vtable.display_status)
 496                                         lc->vtable.display_status(lc,msg);
 497                         break;
 498                         case SalReasonTemporarilyUnavailable:
 499                                 msg=msg480;
 500                                 if (lc->vtable.display_status)
 501                                         lc->vtable.display_status(lc,msg480);
 502                         break;
 503                         case SalReasonNotFound:
 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                         //media_encryption_mandatory
 514                                 if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
 515                                         !linphone_core_is_media_encryption_mandatory(lc)) {
 516                                         int i;
 517                                         ms_message("Outgoing call failed with SRTP (SAVP) enabled - retrying with AVP");
 518                                         linphone_call_stop_media_streams(call);
 519                                         if (call->state==LinphoneCallOutgoingInit || call->state==LinphoneCallOutgoingProgress){
 520                                                 /* clear SRTP local params */
 521                                                 call->params.media_encryption = LinphoneMediaEncryptionNone;
 522                                                 for(i=0; i<call->localdesc->nstreams; i++) {
 523                                                         call->localdesc->streams[i].proto = SalProtoRtpAvp;
 524                                                         memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
 525                                                 }
 526                                                 linphone_core_start_invite(lc, call);
 527                                         }
 528                                         return;
 529                                 }
 530                                 msg=_("Incompatible media parameters.");
 531                                 if (lc->vtable.display_status)
 532                                         lc->vtable.display_status(lc,msg);
 533                         break;
 534                         default:
 535                                 if (lc->vtable.display_status)
 536                                         lc->vtable.display_status(lc,_("Call failed."));
 537                 }
 538         }
 539
 540         if (lc->ringstream!=NULL) {
 541                 ring_stop(lc->ringstream);
 542                 lc->ringstream=NULL;
 543         }
 544         linphone_call_stop_media_streams (call);
 545         if (call->referer && linphone_call_get_state(call->referer)==LinphoneCallPaused && call->referer->was_automatically_paused){
 546                 /*resume to the call that send us the refer automatically*/
 547                 linphone_core_resume_call(lc,call->referer);
 548         }
 549         if (sr == SalReasonDeclined) {
 550                 call->reason=LinphoneReasonDeclined;
 551                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 552         } else if (sr == SalReasonNotFound) {
 553                 call->reason=LinphoneReasonNotFound;
 554                 linphone_call_set_state(call,LinphoneCallError,"User not found.");
 555         } else {
 556                 linphone_call_set_state(call,LinphoneCallError,msg);
 557         }
 558 }
 559
 560 static void call_released(SalOp *op){
 561         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 562         if (call!=NULL){
 563                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 564         }else ms_error("call_released() for already destroyed call ?");
 565 }
 566
 567 static void auth_requested(SalOp *h, const char *realm, const char *username){
 568         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 569         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 570         LinphoneCall *call=is_a_linphone_call(sal_op_get_user_pointer(h));
 571
 572         if (call && call->ping_op==h){
 573                 /*don't request authentication for ping requests. Their purpose is just to get any
 574                  * answer to get the Via's received and rport parameters.
 575                  */
 576                 ms_message("auth_requested(): ignored for ping request.");
 577                 return;
 578         }
 579
 580         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 581
 582         if (ai && ai->works==FALSE && ai->usecount>=3){
 583                 /*case we tried 3 times to authenticate, without success */
 584                 /*Better is to stop (implemeted below in else statement), and retry later*/
 585                 if (ms_time(NULL)-ai->last_use_time>30){
 586                         ai->usecount=0; /*so that we can allow to retry */
 587                 }
 588         }
 589
 590         if (ai && (ai->works || ai->usecount<3)){
 591                 SalAuthInfo sai;
 592                 sai.username=ai->username;
 593                 sai.userid=ai->userid;
 594                 sai.realm=ai->realm;
 595                 sai.password=ai->passwd;
 596                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 597                 sal_op_authenticate(h,&sai);
 598                 ai->usecount++;
 599                 ai->last_use_time=ms_time(NULL);
 600         }else{
 601                 if (ai && ai->works==FALSE) {
 602                         sal_op_cancel_authentication(h);
 603                 }
 604                 if (lc->vtable.auth_info_requested)
 605                         lc->vtable.auth_info_requested(lc,realm,username);
 606         }
 607 }
 608
 609 static void auth_success(SalOp *h, const char *realm, const char *username){
 610         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 611         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 612         if (ai){
 613                 ms_message("%s/%s authentication works.",realm,username);
 614                 ai->works=TRUE;
 615         }
 616 }
 617
 618 static void register_success(SalOp *op, bool_t registered){
 619         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 620         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 621         char *msg;
 622
 623         if (cfg->deletion_date!=0){
 624                 ms_message("Registration success for removed proxy config, ignored");
 625                 return;
 626         }
 627         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 628         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 629                                         registered ? "Registration sucessful" : "Unregistration done");
 630         if (lc->vtable.display_status){
 631                 if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 632                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 633                 lc->vtable.display_status(lc,msg);
 634                 ms_free(msg);
 635         }
 636
 637 }
 638
 639 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 640         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 641         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 642
 643         if (cfg==NULL){
 644                 ms_warning("Registration failed for unknown proxy config.");
 645                 return ;
 646         }
 647         if (cfg->deletion_date!=0){
 648                 ms_message("Registration failed for removed proxy config, ignored");
 649                 return;
 650         }
 651         if (details==NULL)
 652                 details=_("no response timeout");
 653
 654         if (lc->vtable.display_status) {
 655                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 656                 lc->vtable.display_status(lc,msg);
 657                 ms_free(msg);
 658         }
 659         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 660                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 661         } else if (error == SalErrorNoResponse) {
 662                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 663         }
 664         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 665         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 666                 const char *realm=NULL,*username=NULL;
 667                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 668                         if (lc->vtable.auth_info_requested)
 669                                 lc->vtable.auth_info_requested(lc,realm,username);
 670                 }
 671         }
 672 }
 673
 674 static void vfu_request(SalOp *op){
 675 #ifdef VIDEO_ENABLED
 676         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 677         if (call==NULL){
 678                 ms_warning("VFU request but no call !");
 679                 return ;
 680         }
 681         if (call->videostream)
 682                 video_stream_send_vfu(call->videostream);
 683 #endif
 684 }
 685
 686 static void dtmf_received(SalOp *op, char dtmf){
 687         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 688         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 689         if (lc->vtable.dtmf_received != NULL)
 690                 lc->vtable.dtmf_received(lc, call, dtmf);
 691 }
 692
 693 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 694         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 695         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 696         if (call){
 697                 if (call->refer_to!=NULL){
 698                         ms_free(call->refer_to);
 699                 }
 700                 call->refer_to=ms_strdup(referto);
 701                 call->refer_pending=TRUE;
 702                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 703                 if (lc->vtable.display_status){
 704                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 705                         lc->vtable.display_status(lc,msg);
 706                         ms_free(msg);
 707                 }
 708                 if (call->state!=LinphoneCallPaused){
 709                         ms_message("Automatically pausing current call to accept transfer.");
 710                         linphone_core_pause_call(lc,call);
 711                         call->was_automatically_paused=TRUE;
 712                         /*then we will start the refered when the pause is accepted, in order to serialize transactions within the dialog.
 713                          * Indeed we need to avoid to send a NOTIFY to inform about of state of the refered call while the pause isn't completed.
 714                         **/
 715                 }else linphone_core_start_refered_call(lc,call);
 716         }else if (lc->vtable.refer_received){
 717                 lc->vtable.refer_received(lc,referto);
 718         }
 719 }
 720
 721 static void text_received(Sal *sal, const char *from, const char *msg){
 722         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 723         linphone_core_message_received(lc,from,msg,NULL);
 724 }
 725 void message_external_body_received(Sal *sal, const char *from, const char *url) {
 726         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 727         linphone_core_message_received(lc,from,NULL,url);
 728 }
 729 static void notify(SalOp *op, const char *from, const char *msg){
 730         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 731         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 732         ms_message("get a %s notify from %s",msg,from);
 733         if(lc->vtable.notify_recv)
 734                 lc->vtable.notify_recv(lc,call,from,msg);
 735 }
 736
 737 static void notify_presence(SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status, const char *msg){
 738         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 739         linphone_notify_recv(lc,op,ss,status);
 740 }
 741
 742 static void subscribe_received(SalOp *op, const char *from){
 743         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 744         linphone_subscription_new(lc,op,from);
 745 }
 746
 747 static void subscribe_closed(SalOp *op, const char *from){
 748         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 749         linphone_subscription_closed(lc,op);
 750 }
 751
 752 static void ping_reply(SalOp *op){
 753         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 754         ms_message("ping reply !");
 755         if (call){
 756                 if (call->state==LinphoneCallOutgoingInit){
 757                         call->ping_replied=TRUE;
 758                         linphone_core_proceed_with_invite_if_ready(call->core,call,NULL);
 759                 }
 760         }
 761         else
 762         {
 763                 ms_warning("ping reply without call attached...");
 764         }
 765 }
 766
 767 static void notify_refer(SalOp *op, SalReferStatus status){
 768         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 769         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 770         LinphoneCallState cstate;
 771         if (call==NULL) {
 772                 ms_warning("Receiving notify_refer for unknown call.");
 773                 return ;
 774         }
 775         switch(status){
 776                 case SalReferTrying:
 777                         cstate=LinphoneCallOutgoingProgress;
 778                 break;
 779                 case SalReferSuccess:
 780                         cstate=LinphoneCallConnected;
 781                 break;
 782                 case SalReferFailed:
 783                         cstate=LinphoneCallError;
 784                 break;
 785                 default:
 786                         cstate=LinphoneCallError;
 787         }
 788         linphone_call_set_transfer_state(call, cstate);
 789         if (cstate==LinphoneCallConnected){
 790                 /*automatically terminate the call as the transfer is complete.*/
 791                 linphone_core_terminate_call(lc,call);
 792         }
 793 }
 794
 795 static LinphoneChatMessageState chatStatusSal2Linphone(SalTextDeliveryStatus status){
 796         switch(status){
 797                 case SalTextDeliveryInProgress:
 798                         return LinphoneChatMessageStateInProgress;
 799                 case SalTextDeliveryDone:
 800                         return LinphoneChatMessageStateDelivered;
 801                 case SalTextDeliveryFailed:
 802                         return LinphoneChatMessageStateNotDelivered;
 803         }
 804         return LinphoneChatMessageStateIdle;
 805 }
 806
 807 static int op_equals(LinphoneCall *a, SalOp *b) {
 808         return a->op !=b; /*return 0 if equals*/
 809 }
 810 static void text_delivery_update(SalOp *op, SalTextDeliveryStatus status){
 811         LinphoneChatMessage *chat_msg=(LinphoneChatMessage* )sal_op_get_user_pointer(op);
 812         const MSList* calls = linphone_core_get_calls(chat_msg->chat_room->lc);
 813
 814         if (chat_msg && chat_msg->cb) {
 815                 chat_msg->cb(chat_msg
 816                         ,chatStatusSal2Linphone(status)
 817                         ,chat_msg->cb_ud);
 818         }
 819         linphone_chat_message_destroy(chat_msg);
 820
 821         if (!ms_list_find_custom((MSList*)calls, (MSCompareFunc) op_equals, op)) {
 822                 /*op was only create for messaging purpose, destroying*/
 823                 sal_op_release(op);
 824         }
 825 }
 826
 827 SalCallbacks linphone_sal_callbacks={
 828         call_received,
 829         call_ringing,
 830         call_accepted,
 831         call_ack,
 832         call_updating,
 833         call_terminated,
 834         call_failure,
 835         call_released,
 836         auth_requested,
 837         auth_success,
 838         register_success,
 839         register_failure,
 840         vfu_request,
 841         dtmf_received,
 842         refer_received,
 843         text_received,
 844         message_external_body_received,
 845         text_delivery_update,
 846         notify,
 847         notify_presence,
 848         notify_refer,
 849         subscribe_received,
 850         subscribe_closed,
 851         ping_reply,
 852 };
 853
 854