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linphone-iphone/coreapi/callbacks.c
Guillaume Beraudo 93f5e85967 Expose chat message reason based on LinphoneReason. 
The response code is not exposed to allow mrtp in the future.
There is no possibility to retrieve the code or the sip reason phrase.
2014-02-13 17:20:04 +01:00

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/*
linphone
Copyright (C) 2010 Simon MORLAT (simon.morlat@free.fr)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "sal/sal.h"
#include "linphonecore.h"
#include "private.h"
#include "mediastreamer2/mediastream.h"
#include "lpconfig.h"
// stat
#ifndef WIN32
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details);
static int media_parameters_changed(LinphoneCall *call, SalMediaDescription *oldmd, SalMediaDescription *newmd) {
if (call->params.in_conference != call->current_params.in_conference) return SAL_MEDIA_DESCRIPTION_CHANGED;
if (call->up_bw != linphone_core_get_upload_bandwidth(call->core)) return SAL_MEDIA_DESCRIPTION_CHANGED;
if (call->localdesc_changed) ms_message("Local description has changed: %i", call->localdesc_changed);
return call->localdesc_changed | sal_media_description_equals(oldmd, newmd);
}
void linphone_core_update_streams_destinations(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *old_md, SalMediaDescription *new_md) {
SalStreamDescription *new_audiodesc = NULL;
SalStreamDescription *new_videodesc = NULL;
char *rtp_addr, *rtcp_addr;
int i;
for (i = 0; i < new_md->n_active_streams; i++) {
if (new_md->streams[i].type == SalAudio) {
new_audiodesc = &new_md->streams[i];
} else if (new_md->streams[i].type == SalVideo) {
new_videodesc = &new_md->streams[i];
}
}
if (call->audiostream && new_audiodesc) {
rtp_addr = (new_audiodesc->rtp_addr[0] != '\0') ? new_audiodesc->rtp_addr : new_md->addr;
rtcp_addr = (new_audiodesc->rtcp_addr[0] != '\0') ? new_audiodesc->rtcp_addr : new_md->addr;
ms_message("Change audio stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
rtp_session_set_remote_addr_full(call->audiostream->ms.session, rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
}
#ifdef VIDEO_ENABLED
if (call->videostream && new_videodesc) {
rtp_addr = (new_videodesc->rtp_addr[0] != '\0') ? new_videodesc->rtp_addr : new_md->addr;
rtcp_addr = (new_videodesc->rtcp_addr[0] != '\0') ? new_videodesc->rtcp_addr : new_md->addr;
ms_message("Change video stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_videodesc->rtp_port, rtcp_addr, new_videodesc->rtcp_port);
rtp_session_set_remote_addr_full(call->videostream->ms.session, rtp_addr, new_videodesc->rtp_port, rtcp_addr, new_videodesc->rtcp_port);
}
#else
(void)new_videodesc;
#endif
}
void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
SalMediaDescription *oldmd=call->resultdesc;
bool_t all_muted=FALSE;
bool_t send_ringbacktone=FALSE;
linphone_core_stop_ringing(lc);
if (!new_md) {
ms_error("linphone_core_update_streams() called with null media description");
return;
}
if (call->biggestdesc==NULL || new_md->n_total_streams>call->biggestdesc->n_total_streams){
/*we have been offered and now are ready to proceed, or we added a new stream*/
/*store the media description to remember the mapping of calls*/
if (call->biggestdesc){
sal_media_description_unref(call->biggestdesc);
call->biggestdesc=NULL;
}
if (sal_call_is_offerer(call->op))
call->biggestdesc=sal_media_description_ref(call->localdesc);
else
call->biggestdesc=sal_media_description_ref(sal_call_get_remote_media_description(call->op));
}
sal_media_description_ref(new_md);
call->expect_media_in_ack=FALSE;
call->resultdesc=new_md;
if ((call->audiostream && call->audiostream->ms.ticker) || (call->videostream && call->videostream->ms.ticker)){
/* we already started media: check if we really need to restart it*/
if (oldmd){
int md_changed = media_parameters_changed(call, oldmd, new_md);
if ((md_changed & SAL_MEDIA_DESCRIPTION_CODEC_CHANGED) || call->playing_ringbacktone) {
ms_message("Media descriptions are different, need to restart the streams.");
} else {
if (md_changed == SAL_MEDIA_DESCRIPTION_UNCHANGED) {
if (call->all_muted){
ms_message("Early media finished, unmuting inputs...");
/*we were in early media, now we want to enable real media */
linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
if (call->audiostream)
linphone_core_enable_mic(lc, linphone_core_mic_enabled(lc));
#ifdef VIDEO_ENABLED
if (call->videostream && call->camera_enabled)
video_stream_change_camera(call->videostream,lc->video_conf.device );
#endif
}
ms_message("No need to restart streams, SDP is unchanged.");
goto end;
}else {
if (md_changed & SAL_MEDIA_DESCRIPTION_NETWORK_CHANGED) {
ms_message("Network parameters have changed, update them.");
linphone_core_update_streams_destinations(lc, call, oldmd, new_md);
}
if (md_changed & SAL_MEDIA_DESCRIPTION_CRYPTO_CHANGED) {
ms_message("Crypto parameters have changed, update them.");
linphone_call_update_crypto_parameters(call, oldmd, new_md);
}
goto end;
}
}
}
linphone_call_stop_media_streams (call);
linphone_call_init_media_streams (call);
}
if (call->audiostream==NULL){
/*this happens after pausing the call locally. The streams are destroyed and then we wait the 200Ok to recreate them*/
linphone_call_init_media_streams (call);
}
if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
send_ringbacktone=TRUE;
}
if (call->state==LinphoneCallIncomingEarlyMedia ||
(call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){
all_muted=TRUE;
}
linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
if (call->state==LinphoneCallPausing && call->paused_by_app && ms_list_size(lc->calls)==1){
linphone_core_play_named_tone(lc,LinphoneToneCallOnHold);
}
end:
if (oldmd)
sal_media_description_unref(oldmd);
}
#if 0
static bool_t is_duplicate_call(LinphoneCore *lc, const LinphoneAddress *from, const LinphoneAddress *to){
MSList *elem;
for(elem=lc->calls;elem!=NULL;elem=elem->next){
LinphoneCall *call=(LinphoneCall*)elem->data;
if (linphone_address_weak_equal(call->log->from,from) &&
linphone_address_weak_equal(call->log->to, to)){
return TRUE;
}
}
return FALSE;
}
#endif
static bool_t already_a_call_with_remote_address(const LinphoneCore *lc, const LinphoneAddress *remote) {
MSList *elem;
ms_warning(" searching for already_a_call_with_remote_address.");
for(elem=lc->calls;elem!=NULL;elem=elem->next){
const LinphoneCall *call=(LinphoneCall*)elem->data;
const LinphoneAddress *cRemote=linphone_call_get_remote_address(call);
if (linphone_address_weak_equal(cRemote,remote)) {
ms_warning("already_a_call_with_remote_address found.");
return TRUE;
}
}
return FALSE;
}
static bool_t already_a_call_pending(LinphoneCore *lc){
MSList *elem;
for(elem=lc->calls;elem!=NULL;elem=elem->next){
LinphoneCall *call=(LinphoneCall*)elem->data;
if (call->state==LinphoneCallIncomingReceived
|| call->state==LinphoneCallOutgoingInit
|| call->state==LinphoneCallOutgoingProgress
|| call->state==LinphoneCallOutgoingEarlyMedia
|| call->state==LinphoneCallOutgoingRinging){
return TRUE;
}
}
return FALSE;
}
static void call_received(SalOp *h){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
LinphoneCall *call;
const char *from,*to;
char *alt_contact;
LinphoneAddress *from_addr, *to_addr;
bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",TRUE);
/* first check if we can answer successfully to this invite */
if (linphone_presence_model_get_basic_status(lc->presence_model) == LinphonePresenceBasicStatusClosed) {
LinphonePresenceActivity *activity = linphone_presence_model_get_activity(lc->presence_model);
switch (linphone_presence_activity_get_type(activity)) {
case LinphonePresenceActivityBusy:
sal_call_decline(h,SalReasonBusy,NULL);
break;
case LinphonePresenceActivityAppointment:
case LinphonePresenceActivityMeeting:
case LinphonePresenceActivityOffline:
case LinphonePresenceActivityWorship:
sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
break;
case LinphonePresenceActivityPermanentAbsence:
alt_contact = linphone_presence_model_get_contact(lc->presence_model);
if (alt_contact != NULL) {
sal_call_decline(h,SalReasonRedirect,alt_contact);
ms_free(alt_contact);
}
break;
default:
break;
}
sal_op_release(h);
return;
}
if (!linphone_core_can_we_add_call(lc)){/*busy*/
sal_call_decline(h,SalReasonBusy,NULL);
sal_op_release(h);
return;
}
from=sal_op_get_from(h);
to=sal_op_get_to(h);
from_addr=linphone_address_new(from);
to_addr=linphone_address_new(to);
if ((already_a_call_with_remote_address(lc,from_addr) && prevent_colliding_calls) || already_a_call_pending(lc)){
ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
sal_call_decline(h,SalReasonBusy,NULL);
sal_op_release(h);
linphone_address_destroy(from_addr);
linphone_address_destroy(to_addr);
return;
}
call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
/* the call is acceptable so we can now add it to our list */
linphone_core_add_call(lc,call);
linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
if ((linphone_core_get_firewall_policy(lc) == LinphonePolicyUseIce) && (call->ice_session != NULL)) {
/* Defer ringing until the end of the ICE candidates gathering process. */
ms_message("Defer ringing to gather ICE candidates");
return;
}
#ifdef BUILD_UPNP
if ((linphone_core_get_firewall_policy(lc) == LinphonePolicyUseUpnp) && (call->upnp_session != NULL)) {
/* Defer ringing until the end of the ICE candidates gathering process. */
ms_message("Defer ringing to gather uPnP candidates");
return;
}
#endif //BUILD_UPNP
linphone_core_notify_incoming_call(lc,call);
}
static void call_ringing(SalOp *h){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
SalMediaDescription *md;
if (call==NULL) return;
/*set privacy*/
call->current_params.privacy=(LinphonePrivacyMask)sal_op_get_privacy(call->op);
if (lc->vtable.display_status)
lc->vtable.display_status(lc,_("Remote ringing."));
md=sal_call_get_final_media_description(h);
if (md==NULL){
linphone_core_stop_dtmf_stream(lc);
if (lc->ringstream!=NULL) return;/*already ringing !*/
if (lc->sound_conf.play_sndcard!=NULL){
MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
if (call->localdesc->streams[0].max_rate>0) ms_snd_card_set_preferred_sample_rate(ringcard, call->localdesc->streams[0].max_rate);
/*we release sound before playing ringback tone*/
if (call->audiostream)
audio_stream_unprepare_sound(call->audiostream);
lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
}
ms_message("Remote ringing...");
if (lc->vtable.display_status)
lc->vtable.display_status(lc,_("Remote ringing..."));
linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
}else{
/*accept early media */
if (call->audiostream && audio_stream_started(call->audiostream)){
/*streams already started */
ms_message("Early media already started.");
return;
}
if (lc->vtable.show) lc->vtable.show(lc);
if (lc->vtable.display_status)
lc->vtable.display_status(lc,_("Early media."));
linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
linphone_core_stop_ringing(lc);
ms_message("Doing early media...");
linphone_core_update_streams(lc,call,md);
}
}
/*
* could be reach :
* - when the call is accepted
* - when a request is accepted (pause, resume)
*/
static void call_accepted(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
SalMediaDescription *md;
if (call==NULL){
ms_warning("No call to accept.");
return ;
}
/*set privacy*/
call->current_params.privacy=(LinphonePrivacyMask)sal_op_get_privacy(call->op);
/* Handle remote ICE attributes if any. */
if (call->ice_session != NULL) {
linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(op));
}
#ifdef BUILD_UPNP
if (call->upnp_session != NULL) {
linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(op));
}
#endif //BUILD_UPNP
md=sal_call_get_final_media_description(op);
if (md) /*make sure re-invite will not propose video again*/
call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
if (call->state==LinphoneCallOutgoingProgress ||
call->state==LinphoneCallOutgoingRinging ||
call->state==LinphoneCallOutgoingEarlyMedia){
linphone_call_set_state(call,LinphoneCallConnected,"Connected");
if (call->referer) linphone_core_notify_refer_state(lc,call->referer,call);
}
if (md && !sal_media_description_empty(md) && !linphone_core_incompatible_security(lc,md)){
linphone_call_update_remote_session_id_and_ver(call);
if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
sal_media_description_has_dir(md,SalStreamInactive)){
if (lc->vtable.display_status){
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
lc->vtable.display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
linphone_core_update_streams (lc,call,md);
linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
if (call->refer_pending)
linphone_core_start_refered_call(lc,call,NULL);
}else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
/*we are put on hold when the call is initially accepted */
if (lc->vtable.display_status){
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
lc->vtable.display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
linphone_core_update_streams (lc,call,md);
linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
}else{
if (call->state!=LinphoneCallUpdating){
if (call->state==LinphoneCallResuming){
if (lc->vtable.display_status){
lc->vtable.display_status(lc,_("Call resumed."));
}
}else{
if (lc->vtable.display_status){
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
lc->vtable.display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
}
}
linphone_core_update_streams(lc,call,md);
/*also reflect the change if the "wished" params, in order to avoid to propose SAVP or video again
* further in the call, for example during pause,resume, conferencing reINVITEs*/
linphone_call_fix_call_parameters(call);
if (!call->current_params.in_conference)
lc->current_call=call;
linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
}
}else{
/*send a bye*/
ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
linphone_core_abort_call(lc,call,_("Incompatible, check codecs or security settings..."));
}
}
static void call_ack(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call==NULL){
ms_warning("No call to be ACK'd");
return ;
}
if (call->expect_media_in_ack){
SalMediaDescription *md=sal_call_get_final_media_description(op);
if (md && !sal_media_description_empty(md)){
linphone_core_update_streams(lc,call,md);
linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
}else{
/*send a bye*/
ms_error("Incompatible SDP response received in ACK, need to abort the call");
linphone_core_abort_call(lc,call,"No codec intersection");
return;
}
}
}
static void call_accept_update(LinphoneCore *lc, LinphoneCall *call){
SalMediaDescription *md;
SalMediaDescription *rmd=sal_call_get_remote_media_description(call->op);
if (rmd!=NULL && call->ice_session!=NULL) {
linphone_core_update_ice_from_remote_media_description(call,rmd);
linphone_core_update_local_media_description_from_ice(call->localdesc,call->ice_session);
}
#ifdef BUILD_UPNP
if(call->upnp_session != NULL) {
linphone_core_update_upnp_from_remote_media_description(call, rmd);
linphone_core_update_local_media_description_from_upnp(call->localdesc,call->upnp_session);
}
#endif //BUILD_UPNP
linphone_call_update_remote_session_id_and_ver(call);
sal_call_accept(call->op);
md=sal_call_get_final_media_description(call->op);
if (md && !sal_media_description_empty(md)){
linphone_core_update_streams(lc,call,md);
}
}
static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
call_accept_update(lc,call);
if(lc->vtable.display_status)
lc->vtable.display_status(lc,_("We have been resumed."));
linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
}
static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
call_accept_update(lc,call);
/* we are being paused */
if(lc->vtable.display_status)
lc->vtable.display_status(lc,_("We are paused by other party."));
linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
}
static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call){
/*first check if media capabilities are compatible*/
SalMediaDescription* md;
linphone_call_make_local_media_description(lc,call);
sal_call_set_local_media_description(call->op,call->localdesc);
md=sal_call_get_final_media_description(call->op);
if (md && (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md))){
sal_call_decline(call->op,SalReasonNotAcceptable,NULL);
return;
}
if(lc->vtable.display_status)
lc->vtable.display_status(lc,_("Call is updated by remote."));
call->defer_update=FALSE;
linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
if (call->defer_update==FALSE){
linphone_core_accept_call_update(lc,call,NULL);
}
}
/* this callback is called when an incoming re-INVITE modifies the session*/
static void call_updating(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
if (rmd==NULL){
/* case of a reINVITE without SDP */
call_accept_update(lc,call);
call->expect_media_in_ack=TRUE;
return;
}
switch(call->state){
case LinphoneCallPausedByRemote:
if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
call_resumed(lc,call);
}else call_paused_by_remote(lc,call);
break;
case LinphoneCallStreamsRunning:
case LinphoneCallConnected:
if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
call_paused_by_remote(lc,call);
}else{
call_updated_by_remote(lc,call);
}
break;
default:
call_accept_update(lc,call);
}
}
static void call_terminated(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call==NULL) return;
switch(linphone_call_get_state(call)){
case LinphoneCallEnd:
case LinphoneCallError:
ms_warning("call_terminated: ignoring.");
return;
break;
case LinphoneCallIncomingReceived:
case LinphoneCallIncomingEarlyMedia:
call->reason=LinphoneReasonNotAnswered;
break;
default:
break;
}
ms_message("Current call terminated...");
if (call->refer_pending){
linphone_core_start_refered_call(lc,call,NULL);
}
//we stop the call only if we have this current call or if we are in call
if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls) == 1) || linphone_core_in_call(lc) )) {
linphone_core_stop_ringing(lc);
}
linphone_call_stop_media_streams(call);
if (lc->vtable.show!=NULL)
lc->vtable.show(lc);
if (lc->vtable.display_status!=NULL)
lc->vtable.display_status(lc,_("Call terminated."));
#ifdef BUILD_UPNP
linphone_call_delete_upnp_session(call);
#endif //BUILD_UPNP
linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
}
static int resume_call_after_failed_transfer(LinphoneCall *call){
ms_message("!!!!!!!!!!resume_call_after_failed_transfer");
if (call->was_automatically_paused && call->state==LinphoneCallPausing)
return BELLE_SIP_CONTINUE; /*was still in pausing state*/
if (call->was_automatically_paused && call->state==LinphoneCallPaused){
if (sal_op_is_idle(call->op)){
linphone_core_resume_call(call->core,call);
}else {
ms_message("!!!!!!!!!!resume_call_after_failed_transfer, salop was busy");
return BELLE_SIP_CONTINUE;
}
}
linphone_call_unref(call);
return BELLE_SIP_STOP;
}
static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
char *msg486=_("User is busy.");
char *msg480=_("User is temporarily unavailable.");
/*char *retrymsg=_("%s. Retry after %i minute(s).");*/
char *msg600=_("User does not want to be disturbed.");
char *msg603=_("Call declined.");
const char *msg=details;
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
LinphoneCall *referer=call->referer;
if (call==NULL){
ms_warning("Call faillure reported on already terminated call.");
return ;
}
if (lc->vtable.show) lc->vtable.show(lc);
if (error==SalErrorNoResponse){
msg=_("No response.");
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg);
}else if (error==SalErrorProtocol){
msg=details ? details : _("Protocol error.");
if (lc->vtable.display_status)
lc->vtable.display_status(lc, msg);
}else if (error==SalErrorFailure){
switch(sr){
case SalReasonDeclined:
msg=msg603;
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg603);
break;
case SalReasonBusy:
msg=msg486;
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg486);
break;
case SalReasonRedirect:
msg=_("Redirected");
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg);
break;
case SalReasonTemporarilyUnavailable:
msg=msg480;
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg480);
break;
case SalReasonNotFound:
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg);
break;
case SalReasonDoNotDisturb:
msg=msg600;
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg600);
break;
case SalReasonUnsupportedContent: /*<this is for compatibility: linphone sent 415 because of SDP offer answer failure*/
case SalReasonNotAcceptable:
//media_encryption_mandatory
if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
!linphone_core_is_media_encryption_mandatory(lc)) {
int i;
ms_message("Outgoing call [%p] failed with SRTP (SAVP) enabled",call);
linphone_call_stop_media_streams(call);
if ( call->state==LinphoneCallOutgoingInit
|| call->state==LinphoneCallOutgoingProgress
|| call->state==LinphoneCallOutgoingRinging /*push case*/
|| call->state==LinphoneCallOutgoingEarlyMedia){
ms_message("Retrying call [%p] with AVP",call);
/* clear SRTP local params */
call->params.media_encryption = LinphoneMediaEncryptionNone;
for(i=0; i<call->localdesc->n_active_streams; i++) {
call->localdesc->streams[i].proto = SalProtoRtpAvp;
memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
}
linphone_core_restart_invite(lc, call);
return;
}
}
msg=_("Incompatible media parameters.");
if (lc->vtable.display_status)
lc->vtable.display_status(lc,msg);
break;
case SalReasonRequestPending:
/*restore previous state, the application will decide to resubmit the action if relevant*/
call->reason=linphone_reason_from_sal(sr);
linphone_call_set_state(call,call->prevstate,msg);
return;
break;
default:
if (lc->vtable.display_status)
lc->vtable.display_status(lc,_("Call failed."));
}
}
/*some call error are not fatal*/
switch (call->state) {
case LinphoneCallUpdating:
case LinphoneCallPausing:
case LinphoneCallResuming:
ms_message("Call error on state [%s], restoring previous state",linphone_call_state_to_string(call->prevstate));
call->reason=linphone_reason_from_sal(sr);
linphone_call_set_state(call, call->prevstate,details);
return;
default:
break; /*nothing to do*/
}
linphone_core_stop_ringing(lc);
linphone_call_stop_media_streams(call);
#ifdef BUILD_UPNP
linphone_call_delete_upnp_session(call);
#endif //BUILD_UPNP
call->reason=linphone_reason_from_sal(sr);
if (sr==SalReasonDeclined){
linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
}else{
linphone_call_set_state(call,LinphoneCallError,details);
if (sr==SalReasonBusy)
linphone_core_play_named_tone(lc,LinphoneToneBusy);
}
if (referer){
/*notify referer of the failure*/
linphone_core_notify_refer_state(lc,referer,call);
/*schedule automatic resume of the call. This must be done only after the notifications are completed due to dialog serialization of requests.*/
linphone_core_queue_task(lc,(belle_sip_source_func_t)resume_call_after_failed_transfer,linphone_call_ref(referer),"Automatic call resuming after failed transfer");
}
}
static void call_released(SalOp *op){
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call!=NULL){
linphone_call_set_state(call,LinphoneCallReleased,"Call released");
}else ms_error("call_released() for already destroyed call ?");
}
static void auth_failure(SalOp *op, SalAuthInfo* info) {
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,info->realm,info->username,info->domain);
if (ai){
ms_message("%s/%s/%s authentication fails.",info->realm,info->username,info->domain);
/*ask again for password if auth info was already supplied but apparently not working*/
if (lc->vtable.auth_info_requested) {
lc->vtable.auth_info_requested(lc,info->realm,info->username,info->domain);
}
}
}
static void register_success(SalOp *op, bool_t registered){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
char *msg;
if (!cfg || cfg->deletion_date!=0){
ms_message("Registration success for removed proxy config, ignored");
return;
}
linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
registered ? "Registration sucessful" : "Unregistration done");
if (lc->vtable.display_status){
if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
lc->vtable.display_status(lc,msg);
ms_free(msg);
}
}
static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
if (cfg==NULL){
ms_warning("Registration failed for unknown proxy config.");
return ;
}
if (cfg->deletion_date!=0){
ms_message("Registration failed for removed proxy config, ignored");
return;
}
if (details==NULL)
details=_("no response timeout");
if (lc->vtable.display_status) {
char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details );
lc->vtable.display_status(lc,msg);
ms_free(msg);
}
linphone_proxy_config_set_error(cfg,linphone_reason_from_sal(reason));
if (error== SalErrorFailure
&& reason == SalReasonServiceUnavailable
&& linphone_proxy_config_get_state(cfg) == LinphoneRegistrationOk) {
linphone_proxy_config_set_state(cfg,LinphoneRegistrationProgress,_("Service unavailable, retrying"));
} else {
linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
}
if (cfg->publish_op){
/*prevent publish to be sent now until registration gets successful*/
sal_op_release(cfg->publish_op);
cfg->publish_op=NULL;
cfg->send_publish=cfg->publish;
}
}
static void vfu_request(SalOp *op){
#ifdef VIDEO_ENABLED
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
if (call==NULL){
ms_warning("VFU request but no call !");
return ;
}
if (call->videostream)
video_stream_send_vfu(call->videostream);
#endif
}
static void dtmf_received(SalOp *op, char dtmf){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (lc->vtable.dtmf_received != NULL)
lc->vtable.dtmf_received(lc, call, dtmf);
}
static void refer_received(Sal *sal, SalOp *op, const char *referto){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call){
if (call->refer_to!=NULL){
ms_free(call->refer_to);
}
call->refer_to=ms_strdup(referto);
call->refer_pending=TRUE;
linphone_call_set_state(call,LinphoneCallRefered,"Refered");
if (lc->vtable.display_status){
char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
lc->vtable.display_status(lc,msg);
ms_free(msg);
}
if (call->refer_pending) linphone_core_start_refered_call(lc,call,NULL);
}else if (lc->vtable.refer_received){
lc->vtable.refer_received(lc,referto);
}
}
static bool_t is_duplicate_msg(LinphoneCore *lc, const char *msg_id){
MSList *elem=lc->last_recv_msg_ids;
MSList *tail=NULL;
int i;
bool_t is_duplicate=FALSE;
for(i=0;elem!=NULL;elem=elem->next,i++){
if (strcmp((const char*)elem->data,msg_id)==0){
is_duplicate=TRUE;
}
tail=elem;
}
if (!is_duplicate){
lc->last_recv_msg_ids=ms_list_prepend(lc->last_recv_msg_ids,ms_strdup(msg_id));
}
if (i>=10){
ms_free(tail->data);
lc->last_recv_msg_ids=ms_list_remove_link(lc->last_recv_msg_ids,tail);
}
return is_duplicate;
}
static void text_received(SalOp *op, const SalMessage *msg){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
if (is_duplicate_msg(lc,msg->message_id)==FALSE){
linphone_core_message_received(lc,op,msg);
}
}
static void is_composing_received(SalOp *op, const SalIsComposing *is_composing) {
LinphoneCore *lc = (LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_core_is_composing_received(lc, op, is_composing);
}
static void parse_presence_requested(SalOp *op, const char *content_type, const char *content_subtype, const char *body, SalPresenceModel **result) {
linphone_notify_parse_presence(op, content_type, content_subtype, body, result);
}
static void convert_presence_to_xml_requested(SalOp *op, SalPresenceModel *presence, const char *contact, char **content) {
linphone_notify_convert_presence_to_xml(op, presence, contact, content);
}
static void notify_presence(SalOp *op, SalSubscribeStatus ss, SalPresenceModel *model, const char *msg){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_notify_recv(lc,op,ss,model);
}
static void subscribe_presence_received(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_subscription_new(lc,op,from);
}
static void subscribe_presence_closed(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_subscription_closed(lc,op);
}
static void ping_reply(SalOp *op){
LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
ms_message("ping reply !");
if (call){
if (call->state==LinphoneCallOutgoingInit){
call->ping_replied=TRUE;
linphone_core_proceed_with_invite_if_ready(call->core,call,NULL);
}
}
else
{
ms_warning("ping reply without call attached...");
}
}
static const char *get_client_cert_path(LinphoneCore *lc) {
static char cldir[200] = {0};
#ifdef HAVE_GETENV
if (!cldir[0]) {
static char default_path[200] = {0};
snprintf(default_path, sizeof(default_path), "%s%s", getenv("HOME"), "/linphone_certs");
snprintf(cldir, sizeof(cldir), "%s", lp_config_get_string(lc->config,"sip","client_certificates_dir", default_path));
}
#endif
return cldir;
}
static bool_t fill_auth_info_with_client_certificate(LinphoneCore *lc, SalAuthInfo* sai) {
char chain_file[200];
char key_file[200];
const char *path = get_client_cert_path(lc);
snprintf(chain_file, sizeof(chain_file), "%s%s", path, "/chain.pem");
snprintf(key_file, sizeof(key_file), "%s%s", path, "/key.pem");
#ifndef WIN32
{
// optinal check for files
struct stat st;
if (stat(key_file,&st)) {
ms_warning("No client certificate key found in %s", key_file);
return FALSE;
}
if (stat(chain_file,&st)) {
ms_warning("No client certificate chain found in %s", chain_file);
return FALSE;
}
}
#endif
sal_certificates_chain_parse_file(sai, chain_file, SAL_CERTIFICATE_RAW_FORMAT_PEM );
sal_signing_key_parse_file(sai, key_file, "");
return sai->certificates && sai->key;
}
static bool_t fill_auth_info(LinphoneCore *lc, SalAuthInfo* sai) {
LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,sai->realm,sai->username,sai->domain);
if (ai) {
sai->userid=ms_strdup(ai->userid?ai->userid:ai->username);
sai->password=ai->passwd?ms_strdup(ai->passwd):NULL;
sai->ha1=ai->ha1?ms_strdup(ai->ha1):NULL;
ai->usecount++;
ai->last_use_time=ms_time(NULL);
return TRUE;
} else {
return FALSE;
}
}
static bool_t auth_requested(Sal* sal, SalAuthInfo* sai) {
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
if (sai->mode == SalAuthModeHttpDigest) {
if (fill_auth_info(lc,sai)) {
return TRUE;
} else {
if (lc->vtable.auth_info_requested) {
lc->vtable.auth_info_requested(lc,sai->realm,sai->username,sai->domain);
if (fill_auth_info(lc,sai)) {
return TRUE;
}
}
return FALSE;
}
} else if (sai->mode == SalAuthModeTls) {
return fill_auth_info_with_client_certificate(lc,sai);
} else {
return FALSE;
}
}
static void notify_refer(SalOp *op, SalReferStatus status){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
LinphoneCallState cstate;
if (call==NULL) {
ms_warning("Receiving notify_refer for unknown call.");
return ;
}
switch(status){
case SalReferTrying:
cstate=LinphoneCallOutgoingProgress;
break;
case SalReferSuccess:
cstate=LinphoneCallConnected;
break;
case SalReferFailed:
cstate=LinphoneCallError;
break;
default:
cstate=LinphoneCallError;
}
linphone_call_set_transfer_state(call, cstate);
if (cstate==LinphoneCallConnected){
/*automatically terminate the call as the transfer is complete.*/
linphone_core_terminate_call(lc,call);
}
}
static LinphoneChatMessageState chatStatusSal2Linphone(SalTextDeliveryStatus status){
switch(status){
case SalTextDeliveryInProgress:
return LinphoneChatMessageStateInProgress;
case SalTextDeliveryDone:
return LinphoneChatMessageStateDelivered;
case SalTextDeliveryFailed:
return LinphoneChatMessageStateNotDelivered;
}
return LinphoneChatMessageStateIdle;
}
static int op_equals(LinphoneCall *a, SalOp *b) {
return a->op !=b; /*return 0 if equals*/
}
static void text_delivery_update(SalOp *op, SalTextDeliveryStatus status, SalReason reason){
LinphoneChatMessage *chat_msg=(LinphoneChatMessage* )sal_op_get_user_pointer(op);
const MSList* calls;
if (chat_msg == NULL) {
// Do not handle delivery status for isComposing messages.
return;
}
calls = linphone_core_get_calls(chat_msg->chat_room->lc);
chat_msg->state=chatStatusSal2Linphone(status);
chat_msg->reason=reason;
linphone_chat_message_store_state(chat_msg);
if (chat_msg && chat_msg->cb) {
ms_message("Notifying text delivery with status %i",chat_msg->state);
chat_msg->cb(chat_msg
,chat_msg->state
,chat_msg->cb_ud);
}
if (status != SalTextDeliveryInProgress) { /*don't release op if progress*/
linphone_chat_message_destroy(chat_msg);
if (!ms_list_find_custom((MSList*)calls, (MSCompareFunc) op_equals, op)) {
/*op was only create for messaging purpose, destroying*/
sal_op_release(op);
}
}
}
static void info_received(SalOp *op, const SalBody *body){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_core_notify_info_message(lc,op,body);
}
static void subscribe_response(SalOp *op, SalSubscribeStatus status, SalError error, SalReason reason){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
if (lev==NULL) return;
if (status==SalSubscribeActive){
linphone_event_set_state(lev,LinphoneSubscriptionActive);
}else if (status==SalSubscribePending){
linphone_event_set_state(lev,LinphoneSubscriptionPending);
}else{
linphone_event_set_reason(lev, linphone_reason_from_sal(reason));
linphone_event_set_state(lev,LinphoneSubscriptionError);
}
}
static void notify(SalOp *op, SalSubscribeStatus st, const char *eventname, const SalBody *body){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneContent content;
if (lev==NULL) {
/*out of subscribe notify */
lev=linphone_event_new_with_op(lc,op,LinphoneSubscriptionOutgoing,eventname);
}
if (lc->vtable.notify_received){
const LinphoneContent *ct=linphone_content_from_sal_body(&content,body);
if (ct) lc->vtable.notify_received(lc,lev,eventname,ct);
}
if (st!=SalSubscribeNone){
linphone_event_set_state(lev,linphone_subscription_state_from_sal(st));
}
}
static void subscribe_received(SalOp *op, const char *eventname, const SalBody *body){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
if (lev==NULL) {
lev=linphone_event_new_with_op(lc,op,LinphoneSubscriptionIncoming,eventname);
linphone_event_set_state(lev,LinphoneSubscriptionIncomingReceived);
}else{
/*subscribe refresh, unhandled*/
}
}
static void subscribe_closed(SalOp *op){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
linphone_event_set_state(lev,LinphoneSubscriptionTerminated);
}
static void on_publish_response(SalOp* op, SalError err, SalReason reason){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
if (lev==NULL) return;
if (err==SalErrorNone){
if (!lev->terminating)
linphone_event_set_publish_state(lev,LinphonePublishOk);
else
linphone_event_set_publish_state(lev,LinphonePublishCleared);
}else{
linphone_event_set_reason(lev,linphone_reason_from_sal(reason));
linphone_event_set_publish_state(lev,LinphonePublishError);
}
}
static void on_expire(SalOp *op){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
if (lev==NULL) return;
if (linphone_event_get_publish_state(lev)==LinphonePublishOk){
linphone_event_set_publish_state(lev,LinphonePublishExpiring);
}else if (linphone_event_get_subscription_state(lev)==LinphoneSubscriptionActive){
linphone_event_set_state(lev,LinphoneSubscriptionExpiring);
}
}
SalCallbacks linphone_sal_callbacks={
call_received,
call_ringing,
call_accepted,
call_ack,
call_updating,
call_terminated,
call_failure,
call_released,
auth_failure,
register_success,
register_failure,
vfu_request,
dtmf_received,
refer_received,
text_received,
text_delivery_update,
is_composing_received,
notify_refer,
subscribe_received,
subscribe_closed,
subscribe_response,
notify,
subscribe_presence_received,
subscribe_presence_closed,
parse_presence_requested,
convert_presence_to_xml_requested,
notify_presence,
ping_reply,
auth_requested,
info_received,
on_publish_response,
on_expire
};
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