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FS-10617: [mod_sofia] Nightmare transfer: expose remote server's channel UUIDs as variables.

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Currently there is no easy way for ESL and dial plan users to easily correlate
the channel UUID of the call legs involved in a nightmare transfer. This patch
adds two new channel variables, which are set to the remote server call leg
UUIDs (transfer_refer_from, transfer_refer_for).

The UUIDs are passed from the remote server in custom headers (X-FS-Refer-From
and X-FS-Refer-For).
This commit is contained in:
Hristo Trendev 2017-08-22 15:41:05 +02:00
parent fd3c2fd3bf
commit 9d4c26825f
1 changed files with 12 additions and 0 deletions
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12
src/mod/endpoints/mod_sofia/sofia.c
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@ -9288,6 +9288,9 @@ void sofia_handle_sip_i_refer(nua_t *nua, sofia_profile_t *profile, nua_handle_t
}
}
switch_event_add_header_string(nightmare_xfer_helper->vars, SWITCH_STACK_BOTTOM, "sip_h_X-FS-Refer-From", switch_core_session_get_uuid(session));
switch_event_add_header_string(nightmare_xfer_helper->vars, SWITCH_STACK_BOTTOM, "sip_h_X-FS-Refer-For", br_a);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Good Luck, you'll need it......\n");
launch_nightmare_xfer(nightmare_xfer_helper);
@ -11104,6 +11107,8 @@ void sofia_handle_sip_i_invite(switch_core_session_t *session, nua_t *nua, sofia
}
} else {
char const *a_leg = NULL;
char const *nightmare_xfer_uuid = NULL;
switch_event_t *event = NULL;
if (sip->sip_replaces && sip->sip_replaces->rp_params && sip->sip_replaces->rp_call_id) {
a_leg = msg_header_find_param(sip->sip_replaces->rp_common, "a-leg");
@ -11119,6 +11124,13 @@ void sofia_handle_sip_i_invite(switch_core_session_t *session, nua_t *nua, sofia
switch_event_fire(&event);
}
} else {
if ((nightmare_xfer_uuid = sofia_glue_get_unknown_header(sip, "X-FS-Refer-For"))) {
switch_channel_set_variable(b_channel, "transfer_refer_for", nightmare_xfer_uuid);
}
if ((nightmare_xfer_uuid = sofia_glue_get_unknown_header(sip, "X-FS-Refer-From"))) {
switch_channel_set_variable(b_channel, "transfer_refer_from", nightmare_xfer_uuid);
}
if (!zstr(bridge_uuid)) {
if (sip->sip_replaces && sip->sip_replaces->rp_params && sip->sip_replaces->rp_call_id && switch_channel_test_flag(b_channel, CF_BRIDGED) &&
switch_true(switch_find_parameter(*(sip->sip_replaces->rp_params), "early-only", switch_core_session_get_pool(session)))) {