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