MODENDP-179 - Support for SLA, works with Polycom and Snom(Sylantro mode). Thank you Matthew Kaufman. Might still need more work.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@11562 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Brian West 2009-01-30 16:46:37 +00:00
parent 4425048399
commit 8ba68ed14f
8 changed files with 437 additions and 8 deletions

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@ -62,7 +62,7 @@
<param name="record-template" value="$${base_dir}/recordings/${caller_id_number}.${target_domain}.${strftime(%Y-%m-%d-%H-%M-%S)}.wav"/>
<!--enable to use presence -->
<param name="manage-presence" value="true"/>
<!--<param name="manage-shared-appearance" value="true"/>-->
<!-- used to share presence info across sofia profiles -->
<!-- Name of the db to use for this profile -->
<!--<param name="dbname" value="share_presence"/>-->

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@ -17,7 +17,7 @@ SOFIAUA_DIR=$(SOFIA_DIR)/libsofia-sip-ua
SOFIALA=$(SOFIAUA_DIR)/libsofia-sip-ua.la
mod_LTLIBRARIES = mod_sofia.la
mod_sofia_la_SOURCES = mod_sofia.c sofia.c sofia_glue.c sofia_presence.c sofia_reg.c mod_sofia.h
mod_sofia_la_SOURCES = mod_sofia.c sofia.c sofia_glue.c sofia_presence.c sofia_reg.c sofia_sla.c mod_sofia.h
mod_sofia_la_CFLAGS = $(AM_CFLAGS)
mod_sofia_la_CFLAGS += -I. -I$(SOFIAUA_DIR)/bnf -I$(SOFIAUA_DIR)/features
mod_sofia_la_CFLAGS += -I$(SOFIAUA_DIR)/http -I$(SOFIAUA_DIR)/ipt

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@ -375,6 +375,7 @@ struct sofia_profile {
char *tls_bindurl;
char *tcp_contact;
char *tls_contact;
char *sla_contact;
char *sipdomain;
char *timer_name;
char *hold_music;
@ -439,6 +440,7 @@ struct sofia_profile {
sofia_media_options_t media_options;
uint32_t force_subscription_expires;
switch_rtp_bug_flag_t auto_rtp_bugs;
char manage_shared_appearance; /* pflags was all full up - MTK */
};
struct private_object {
@ -474,7 +476,6 @@ struct private_object {
char *from_address;
char *to_address;
char *callid;
char *far_end_contact;
char *contact_url;
char *from_str;
char *rpid;
@ -771,3 +772,14 @@ const char * sofia_state_string(int state);
switch_status_t sofia_glue_tech_set_codec(private_object_t *tech_pvt, int force);
void sofia_wait_for_reply(struct private_object *tech_pvt, nua_event_t event, uint32_t timeout);
void sofia_glue_set_image_sdp(private_object_t *tech_pvt, switch_t38_options_t *t38_options);
/*
* SLA (shared line appearance) entrypoints
*/
void sofia_sla_handle_register(nua_t *nua, sofia_profile_t *profile, sip_t const *sip);
void sofia_sla_handle_sip_i_publish(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[]);
void sofia_sla_handle_sip_i_subscribe(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[]);
void sofia_sla_handle_sip_r_subscribe(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[]);
void sofia_sla_handle_sip_i_notify(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[]);

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@ -94,8 +94,33 @@ void sofia_handle_sip_i_notify(switch_core_session_t *session, int status,
goto error;
}
/* the following could be refactored back to the calling event handler here in sofia.c XXX MTK */
/* potentially interesting note: for Linksys shared appearance, we'll probably have to set up to get bare notifies
* and pass them inward to the sla handler. we'll have to set NUTAG_APPL_METHOD("NOTIFY") when creating
* nua, and also pick them off special elsewhere here in sofia.c - MTK
* *and* for Linksys, I believe they use "sa" as their magic appearance agent name for those blind notifies, so
* we'll probably have to change to match
*/
if (profile->manage_shared_appearance) {
if (!strncmp(sip->sip_request->rq_url->url_user, "sla-agent", sizeof("sla-agent"))) {
int sub_state;
tl_gets(tags, NUTAG_SUBSTATE_REF(sub_state), TAG_END());
sofia_sla_handle_sip_i_notify(nua, profile, nh, sip, tags);
if (sub_state == nua_substate_terminated) {
nua_handle_bind(nh, NULL);
nua_handle_destroy(nh);
}
return;
}
}
/* Automatically return a 200 OK for Event: keep-alive */
if (!strcasecmp(sip->sip_event->o_type, "keep-alive")) {
/* XXX MTK - is this right? in this case isn't sofia is already sending a 200 itself also? */
nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
return;
}
@ -305,6 +330,7 @@ void sofia_event_callback(nua_event_t event,
switch_channel_t *channel = NULL;
sofia_gateway_t *gateway = NULL;
int locked = 0;
int check_destroy = 1;
if (sofia_private && sofia_private != &mod_sofia_globals.destroy_private && sofia_private != &mod_sofia_globals.keep_private) {
if ((gateway = sofia_private->gateway)) {
@ -476,8 +502,23 @@ void sofia_event_callback(nua_event_t event,
switch (event) {
case nua_i_subscribe:
case nua_r_notify:
check_destroy = 0;
break;
case nua_i_notify:
if (sip->sip_event && !strcmp(sip->sip_event->o_type, "dialog") && sip->sip_event->o_params && !strcmp(sip->sip_event->o_params[0], "sla")) {
check_destroy = 0;
}
break;
default:
break;
}
if (check_destroy) {
if (nh && ((sofia_private && sofia_private->destroy_nh) || !nua_handle_magic(nh))) {
if (sofia_private) {
nua_handle_bind(nh, NULL);
@ -485,9 +526,8 @@ void sofia_event_callback(nua_event_t event,
nua_handle_destroy(nh);
nh = NULL;
}
break;
}
if (sofia_private && sofia_private->destroy_me) {
if (nh) {
nua_handle_bind(nh, NULL);
@ -719,9 +759,9 @@ void *SWITCH_THREAD_FUNC sofia_profile_thread_run(switch_thread_t *thread, void
TAG_IF(profile->pres_type, NUTAG_ALLOW("SUBSCRIBE")),
TAG_IF(profile->pres_type, NUTAG_ENABLEMESSAGE(1)),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("presence")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("dialog")),
TAG_IF((profile->pres_type || profile->manage_shared_appearance), NUTAG_ALLOW_EVENTS("dialog")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("call-info")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("sla")),
TAG_IF((profile->pres_type || profile->manage_shared_appearance), NUTAG_ALLOW_EVENTS("sla")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("include-session-description")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("presence.winfo")),
TAG_IF(profile->pres_type, NUTAG_ALLOW_EVENTS("message-summary")),
@ -738,7 +778,6 @@ void *SWITCH_THREAD_FUNC sofia_profile_thread_run(switch_thread_t *thread, void
nua_set_params(node->nua,
NUTAG_APPL_METHOD("OPTIONS"),
NUTAG_EARLY_MEDIA(1),
NUTAG_AUTOANSWER(0),
NUTAG_AUTOALERT(0),
TAG_IF((profile->mflags & MFLAG_REGISTER), NUTAG_ALLOW("REGISTER")),
@ -1954,6 +1993,11 @@ switch_status_t config_sofia(int reload, char *profile_name)
} else if (switch_true(val)) {
profile->pres_type = PRES_TYPE_FULL;
}
} else if (!strcasecmp(var, "manage-shared-appearance")) {
if (switch_true(val)) {
profile->manage_shared_appearance = 1;
profile->sla_contact = switch_core_sprintf(profile->pool, "sip:sla-agent@%s", profile->sipip);
}
} else if (!strcasecmp(var, "unregister-on-options-fail")) {
if (switch_true(val)) {
profile->pflags |= PFLAG_UNREG_OPTIONS_FAIL;
@ -4282,7 +4326,78 @@ void sofia_handle_sip_i_invite(nua_t *nua, sofia_profile_t *profile, nua_handle_
}
}
if (sip->sip_replaces) {
nua_handle_t *bnh;
if ((bnh = nua_handle_by_replaces(nua, sip->sip_replaces))) {
sofia_private_t *b_private = NULL;
if ((b_private = nua_handle_magic(bnh))) {
switch_core_session_t *b_session = NULL;
if ((b_session = switch_core_session_locate(b_private->uuid))) {
switch_channel_t *b_channel = switch_core_session_get_channel(b_session);
const char *uuid;
int one_leg = 1;
private_object_t *b_tech_pvt = NULL;
const char *app = switch_channel_get_variable(b_channel, SWITCH_CURRENT_APPLICATION_VARIABLE);
const char *data = switch_channel_get_variable(b_channel, SWITCH_CURRENT_APPLICATION_DATA_VARIABLE);
if (app && data && !strcasecmp(app, "conference")) {
destination_number = switch_core_session_sprintf(b_session, "answer,conference:%s", data);
dialplan = "inline";
} else {
if (switch_core_session_check_interface(b_session, sofia_endpoint_interface)) {
b_tech_pvt = switch_core_session_get_private(b_session);
}
if ((uuid = switch_channel_get_variable(b_channel, SWITCH_SIGNAL_BOND_VARIABLE))) {
one_leg = 0;
} else {
uuid = switch_core_session_get_uuid(b_session);
}
if (uuid) {
switch_core_session_t *c_session = NULL;
int do_conf = 0;
uuid = switch_core_session_strdup(b_session, uuid);
if ((c_session = switch_core_session_locate(uuid))) {
switch_channel_t *c_channel = switch_core_session_get_channel(c_session);
private_object_t *c_tech_pvt = NULL;
if (switch_core_session_check_interface(c_session, sofia_endpoint_interface)) {
c_tech_pvt = switch_core_session_get_private(c_session);
}
if (!one_leg &&
(!b_tech_pvt || !switch_test_flag(b_tech_pvt, TFLAG_SIP_HOLD)) &&
(!c_tech_pvt || !switch_test_flag(c_tech_pvt, TFLAG_SIP_HOLD))) {
char *ext = switch_core_session_sprintf(b_session, "conference:%s@sla+flags{mintwo}", uuid);
switch_channel_set_flag(c_channel, CF_REDIRECT);
switch_ivr_session_transfer(b_session, ext, "inline", NULL);
switch_ivr_session_transfer(c_session, ext, "inline", NULL);
switch_channel_clear_flag(c_channel, CF_REDIRECT);
do_conf = 1;
}
switch_core_session_rwunlock(c_session);
}
if (do_conf) {
destination_number = switch_core_session_sprintf(b_session, "answer,conference:%s@sla+flags{mintwo}", uuid);
} else {
destination_number = switch_core_session_sprintf(b_session, "answer,intercept:%s", uuid);
}
dialplan = "inline";
}
}
switch_core_session_rwunlock(b_session);
}
}
nua_handle_unref(bnh);
}
}
check_decode(displayname, session);
tech_pvt->caller_profile = switch_caller_profile_new(switch_core_session_get_pool(session),

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@ -3040,6 +3040,16 @@ int sofia_glue_init_sql(sofia_profile_t *profile)
" hostname VARCHAR(255)\n"
");\n";
/* should we move this glue to sofia_sla or keep it here where all db init happens? XXX MTK */
char shared_appearance_sql[] =
"CREATE TABLE sip_shared_appearance_subscriptions (\n"
" subscriber VARCHAR(255),\n"
" call_id VARCHAR(255),\n"
" aor VARCHAR(255),\n"
" profile_name VARCHAR(255),\n"
" hostname VARCHAR(255)\n"
");\n";
if (profile->odbc_dsn) {
#ifdef SWITCH_HAVE_ODBC
if (!(profile->master_odbc = switch_odbc_handle_new(profile->odbc_dsn, profile->odbc_user, profile->odbc_pass))) {
@ -3094,6 +3104,15 @@ int sofia_glue_init_sql(sofia_profile_t *profile)
}
free(test_sql);
if (profile->manage_shared_appearance) {
test_sql = switch_mprintf("delete from sip_shared_appearance_subscriptions where hostname='%q'", mod_sofia_globals.hostname);
if (switch_odbc_handle_exec(profile->master_odbc, test_sql, NULL) != SWITCH_ODBC_SUCCESS) {
switch_odbc_handle_exec(profile->master_odbc, "DROP TABLE sip_shared_appearance_subscriptions", NULL);
switch_odbc_handle_exec(profile->master_odbc, shared_appearance_sql, NULL);
}
free(test_sql);
}
#else
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "ODBC IS NOT AVAILABLE!\n");
#endif
@ -3125,6 +3144,16 @@ int sofia_glue_init_sql(sofia_profile_t *profile)
switch_core_db_test_reactive(profile->master_db, test_sql, "DROP TABLE sip_authentication", auth_sql);
free(test_sql);
if(profile->manage_shared_appearance) {
test_sql = switch_mprintf("delete from sip_shared_appearance_subscriptions where hostname='%q'", mod_sofia_globals.hostname);
switch_core_db_test_reactive(profile->master_db, test_sql, "DROP TABLE sip_shared_appearance_subscriptions", shared_appearance_sql);
free(test_sql);
switch_core_db_exec(profile->master_db, "create index if not exists ssa_hostname on sip_shared_appearance_subscriptions (hostname)", NULL, NULL, NULL);
/* XXX MTK create additional index for shared_appearance if necessary */
}
switch_core_db_exec(profile->master_db, "create index if not exists sr_call_id on sip_registrations (call_id)", NULL, NULL, NULL);
switch_core_db_exec(profile->master_db, "create index if not exists sr_sip_user on sip_registrations (sip_user)", NULL, NULL, NULL);
switch_core_db_exec(profile->master_db, "create index if not exists sr_sip_host on sip_registrations (sip_host)", NULL, NULL, NULL);

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@ -1423,6 +1423,17 @@ void sofia_presence_handle_sip_i_subscribe(int status,
return;
}
/* the following could be refactored back to the calling event handler in sofia.c XXX MTK */
if (profile->manage_shared_appearance) {
if (!strncmp(sip->sip_request->rq_url->url_user, "sla-agent", sizeof("sla-agent"))) {
/* only fire this on <200 to try to avoid resubscribes. probably better ways to do this? */
if (status < 200) {
sofia_sla_handle_sip_i_subscribe(nua, profile, nh, sip, tags);
}
return;
}
}
get_addr(network_ip, sizeof(network_ip), my_addrinfo->ai_addr, my_addrinfo->ai_addrlen);
network_port = ntohs(((struct sockaddr_in *) msg_addrinfo(nua_current_request(nua))->ai_addr)->sin_port);
@ -1767,6 +1778,14 @@ void sofia_presence_handle_sip_r_subscribe(int status,
return;
}
/* the following could possibly be refactored back towards the calling event handler in sofia.c XXX MTK */
if (profile->manage_shared_appearance) {
if (!strcasecmp(o->o_type, "dialog") && msg_params_find(o->o_params, "sla")) {
sofia_sla_handle_sip_r_subscribe(nua, profile, nh, sip, tags);
return;
}
}
if (!sofia_private || !sofia_private->gateway) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Gateway information missing\n");
return;
@ -1810,6 +1829,15 @@ void sofia_presence_handle_sip_i_publish(nua_t *nua, sofia_profile_t *profile, n
sip_payload_t *payload = sip->sip_payload;
char *event_type;
/* the following could instead be refactored back to the calling event handler in sofia.c XXX MTK */
if (profile->manage_shared_appearance) {
/* also it probably is unsafe to dereference so many things in a row without testing XXX MTK */
if (!strncmp(sip->sip_request->rq_url->url_user, "sla-agent", sizeof("sla-agent"))) {
sofia_sla_handle_sip_i_publish(nua, profile, nh, sip, tags);
return;
}
}
if (from) {
from_user = (char *) from->a_url->url_user;
from_host = (char *) from->a_url->url_host;

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@ -1102,6 +1102,10 @@ uint8_t sofia_reg_handle_register(nua_t *nua, sofia_profile_t *profile, nua_hand
switch_event_fire(&s_event);
}
if (profile->manage_shared_appearance) {
sofia_sla_handle_register(nua, profile, sip);
}
return 1;
}

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@ -0,0 +1,241 @@
/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthmct@yahoo.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthmct@yahoo.com>
* Ken Rice, Asteria Solutions Group, Inc <ken@asteriasgi.com>
* Paul D. Tinsley <pdt at jackhammer.org>
* Bret McDanel <trixter AT 0xdecafbad.com>
*
*
* sofia_sla.c -- SOFIA SIP Endpoint (support for shared line appearance)
* This file (and calls into it) developed by Matthew T Kaufman <matthew@matthew.at>
*
*/
#include "mod_sofia.h"
static int sofia_sla_sub_callback(void *pArg, int argc, char **argv, char **columnNames);
void sofia_sla_handle_register(nua_t *nua, sofia_profile_t *profile, sip_t const *sip)
{
nua_handle_t *nh;
/* TODO:
* check to see if it says in the group or extension xml that we are handling SLA for this AOR
* check to see if we're already subscribed and the call-id in the subscribe matches. if so,
* we can skip this, which would keep us from re-subscribing which would also keep us from
* leaking so horribly much memory like we do now
*/
nh = nua_handle(nua, NULL, NUTAG_URL(sip->sip_contact->m_url), TAG_NULL());
/* we make up and bind a sofia_private so that the existing event handler destruction code won't be confused by us */
/* (though it isn't clear that this is sufficient... we still have break cases for nua_i_notify and nua_r_notify
* in sofia_event_callback's destruction end because if we don't, the handle gets destroyed. or maybe it is
* something else i'm doing wrong? MTK
mod_sofia_globals.keep_private is a magic static private things can share for this purpose: ACM
*/
nua_handle_bind(nh, &mod_sofia_globals.keep_private);
nua_subscribe(nh,
SIPTAG_TO(sip->sip_to),
SIPTAG_FROM(sip->sip_to), // ?
SIPTAG_CONTACT_STR(profile->sla_contact),
SIPTAG_EXPIRES_STR("3500"), /* ok, this is totally fake here XXX MTK */
SIPTAG_EVENT_STR("dialog;sla"), /* some phones want ;include-session-description too? */
TAG_NULL());
}
void sofia_sla_handle_sip_i_publish(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[])
{
/* at present there's no SLA versions that we deal with that do publish. to be safe, we say "OK" */
nua_respond(nh, SIP_200_OK, NUTAG_WITH_THIS(nua), TAG_END());
}
void sofia_sla_handle_sip_i_subscribe(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[])
{
char *aor = NULL;
char *subscriber = NULL;
char *sql = NULL;
/*
* XXX MTK FIXME - we don't look at the tag to see if NUTAG_SUBSTATE(nua_substate_terminated) or
* a Subscription-State header with state "terminated" and/or expiration of 0. So we never forget
* about them here.
* likewise, we also don't have a hook against nua_r_notify events, so we can't see nua_substate_terminated there.
*/
/*
* extracting AOR is weird...
* the From is the main extension, not the third-party one...
* and the contact has the phone's own network address, not the AOR address
* so we do what openser's pua_bla does and...
*/
aor = switch_mprintf("sip:%s@%s",sip->sip_contact->m_url->url_user, sip->sip_from->a_url->url_host);
/*
* ok, and now that we HAVE the AOR, we REALLY should go check in the XML config and see if this particular
* extension is set up to have shared appearances managed. right now it is all-or-nothing on the profile,
* which won't be sufficient for real life. FIXME XXX MTK
*/
/* then the subscriber is the user at their network location... this is arguably the wrong way, but works so far... */
subscriber = switch_mprintf("sip:%s@%s",sip->sip_from->a_url->url_user, sip->sip_contact->m_url->url_host);
if ((sql =
switch_mprintf("delete from sip_shared_appearance_subscriptions where subscriber='%q' and profile name='%q' and hostname='%q'",
subscriber, profile->name, mod_sofia_globals.hostname
))) {
sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
}
if ((sql =
switch_mprintf("insert into sip_shared_appearance_subscriptions (subscriber, call_id, aor, profile_name, hostname) "
"values ('%q','%q','%q','%q','%q')",
subscriber, sip->sip_call_id->i_id, aor, profile->name, mod_sofia_globals.hostname))) {
sofia_glue_execute_sql(profile, &sql, SWITCH_TRUE);
}
nua_respond(nh, SIP_202_ACCEPTED, SIPTAG_CONTACT_STR(profile->sla_contact), NUTAG_WITH_THIS(nua),
SIPTAG_SUBSCRIPTION_STATE_STR("active;expires=300"), /* you thought the OTHER time was fake... need delta here FIXME XXX MTK */
SIPTAG_EXPIRES_STR("300"), /* likewise, totally fake - FIXME XXX MTK */
/* sofia_presence says something about needing TAG_IF(sticky, NUTAG_PROXY(sticky)) for NAT stuff? */
TAG_END());
switch_safe_free(aor);
switch_safe_free(subscriber);
switch_safe_free(sql);
}
struct sla_notify_helper {
sofia_profile_t *profile;
char *payload;
};
void sofia_sla_handle_sip_r_subscribe(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[])
{
/* apparently, we do nothing */
}
void sofia_sla_handle_sip_i_notify(nua_t *nua, sofia_profile_t *profile, nua_handle_t *nh, sip_t const *sip, tagi_t tags[])
{
char *sql = NULL;
struct sla_notify_helper helper;
char *aor = NULL;
char *contact = NULL;
/*
* things we know we don't do:
* draft-anil-sipping-bla says we should look and see if the specific appearance is in use and if it is
* return an error for the i_notify, to handle the initial line-seize for dialing out case.
* to do that we would need to really track all the appearances *and* override sofia's autoresponder for i_notify
* because at this point, it already sent the 200 for us.
* and we simply don't track all the appearance status by decoding the XML payload out and recording that in
* an SQL line appearance database yet. we'll need to do that in order to do the above, and in order to make
* interoperation possible between devices that disagree on the dialog xml payload OR don't even do it that
* way and instead use things like call-info/line-seize events like the old Broadsoft spec.
* instead we cheat and just reflect the entire payload back to the subscribers (who, because we don't
* yet check each AOR as it comes in to see if it is to be managed, is more subscribers than we probably
* should have). for the current prototype stage, this works ok anyway.
* and because we don't parse the XML, we even reflect it right back to the notifier/sender (which is called
* "target" in the payload XML, of course).
* also because we don't track on a per-appearance basis, there IS NOT a hook back from sofia_glue to add
* an appearance index to the outbound invite for the "next free appearance". this can lead to race
* conditions where a call shows up on slightly different line key numbers at different phones, making
* "pick up on line X" meaningless if such a race occurs. again, it is a prototype. we can fix it later.
*/
/* the dispatcher calls us just because it is aimed at us, so check to see if it is dialog;sla at the very least... */
if ( (!sip->sip_event)
|| (strcasecmp(sip->sip_event->o_type, "dialog"))
|| !msg_params_find(sip->sip_event->o_params, "sla") ) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING,"sent to sla-agent but not dialog;sla\n");
return;
}
/* calculate the AOR we're trying to tell people about. should probably double-check before derferencing XXX MTK */
aor = switch_mprintf("sip:%s@%s",sip->sip_to->a_url->url_user, sip->sip_to->a_url->url_host);
/* this isn't sufficient because on things like the polycom, the subscriber is the 'main' ext number, but the
* 'main' ext number isn't in ANY of the headers they send us in the notify. of course.
* as a side effect, the subscriber<>'%q' below isn't sufficient to prevent reflecting the event back
* at a phone that has the ext # != third-party#. see above, can only fix by parsing the XML for the 'target'
* so we don't reflect it back at anyone who is the "boss" config, but we do reflect it back at the "secretary"
* config. if that breaks the phone, just set them all up as the "boss" config where ext#==third-party#
*/
contact = switch_mprintf("sip:%s@%s",sip->sip_contact->m_url->url_user, sip->sip_contact->m_url->url_host);
if(sip->sip_payload && sip->sip_payload->pl_data) {
sql = switch_mprintf("select subscriber,call_id,aor,profile_name,hostname from sip_shared_appearance_subscriptions where "
"aor='%q' and subscriber<>'%q' and profile_name='%q' and hostname='%q'",
aor, contact, profile->name, mod_sofia_globals.hostname);
helper.profile = profile;
helper.payload = sip->sip_payload->pl_data; /* could just send the WHOLE payload. you'd get the type that way. */
/* which mutex if any is correct to hold in this callback? XXX MTK FIXME */
sofia_glue_execute_sql_callback(profile, SWITCH_FALSE, profile->ireg_mutex, sql, sofia_sla_sub_callback, &helper);
switch_safe_free(sql);
switch_safe_free(aor);
switch_safe_free(contact);
}
}
static int sofia_sla_sub_callback(void *pArg, int argc, char **argv, char **columnNames)
{
struct sla_notify_helper *helper = pArg;
/* char *subscriber = argv[0]; */
char *call_id = argv[1];
/* char *aor = argv[2]; */
/* char *profile_name = argv[3]; */
/* char *hostname = argv[4]; */
nua_handle_t *nh;
nh = nua_handle_by_call_id(helper->profile->nua, call_id); /* that's all you need to find the subscription's nh */
if(nh)
{
nua_notify(nh,
SIPTAG_SUBSCRIPTION_STATE_STR("active;expires=300"), /* XXX MTK FIXME - this is totally fake calculation */
SIPTAG_CONTENT_TYPE_STR("application/dialog-info+xml"), /* could've just kept the type from the payload */
SIPTAG_PAYLOAD_STR(helper->payload),
TAG_END());
}
return 0;
}