/
manager_channels.c
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/
manager_channels.c
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/*
* Asterisk -- An open source telephony toolkit.
*
* Copyright (C) 2013, Digium, Inc.
*
* David M. Lee, II <dlee@digium.com>
*
* See http://www.asterisk.org for more information about
* the Asterisk project. Please do not directly contact
* any of the maintainers of this project for assistance;
* the project provides a web site, mailing lists and IRC
* channels for your use.
*
* This program is free software, distributed under the terms of
* the GNU General Public License Version 2. See the LICENSE file
* at the top of the source tree.
*/
/*! \file
*
* \brief The Asterisk Management Interface - AMI (channel event handling)
*
* \author David M. Lee, II <dlee@digium.com>
*
* AMI generated many per-channel and global-channel events by converting Stasis
* messages to AMI events. It makes sense to simply put them into a single file.
*/
#include "asterisk.h"
#include "asterisk/callerid.h"
#include "asterisk/channel.h"
#include "asterisk/manager.h"
#include "asterisk/stasis_message_router.h"
#include "asterisk/pbx.h"
#include "asterisk/stasis_channels.h"
/*** DOCUMENTATION
<managerEvent language="en_US" name="Newchannel">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a new channel is created.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">Newstate</ref>
<ref type="managerEvent">Hangup</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="Newstate">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel's state changes.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">Newchannel</ref>
<ref type="managerEvent">Hangup</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="Hangup">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel is hung up.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Cause">
<para>A numeric cause code for why the channel was hung up.</para>
</parameter>
<parameter name="Cause-txt">
<para>A description of why the channel was hung up.</para>
</parameter>
</syntax>
<see-also>
<ref type="managerEvent">Newchannel</ref>
<ref type="managerEvent">SoftHangupRequest</ref>
<ref type="managerEvent">HangupRequest</ref>
<ref type="managerEvent">Newstate</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="HangupRequest">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a hangup is requested.</synopsis>
<syntax>
<channel_snapshot/>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='Hangup']/managerEventInstance/syntax/parameter[@name='Cause'])" />
</syntax>
<see-also>
<ref type="managerEvent">SoftHangupRequest</ref>
<ref type="managerEvent">Hangup</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="SoftHangupRequest">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a soft hangup is requested with a specific cause code.</synopsis>
<syntax>
<channel_snapshot/>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='Hangup']/managerEventInstance/syntax/parameter[@name='Cause'])" />
</syntax>
<see-also>
<ref type="managerEvent">HangupRequest</ref>
<ref type="managerEvent">Hangup</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="NewExten">
<managerEventInstance class="EVENT_FLAG_DIALPLAN">
<synopsis>Raised when a channel enters a new context, extension, priority.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Extension">
<para>Deprecated in 12, but kept for
backward compatability. Please use
'Exten' instead.</para>
</parameter>
<parameter name="Application">
<para>The application about to be executed.</para>
</parameter>
<parameter name="AppData">
<para>The data to be passed to the application.</para>
</parameter>
</syntax>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="NewCallerid">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel receives new Caller ID information.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="CID-CallingPres">
<para>A description of the Caller ID presentation.</para>
</parameter>
</syntax>
<see-also>
<ref type="function">CALLERID</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="NewConnectedLine">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel's connected line information is changed.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="function">CONNECTEDLINE</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="NewAccountCode">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a Channel's AccountCode is changed.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="OldAccountCode">
<para>The channel's previous account code</para>
</parameter>
</syntax>
<see-also>
<ref type="function">CHANNEL</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="DialBegin">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a dial action has started.</synopsis>
<syntax>
<channel_snapshot/>
<channel_snapshot prefix="Dest"/>
<parameter name="DialString">
<para>The non-technology specific device being dialed.</para>
</parameter>
</syntax>
<see-also>
<ref type="application">Dial</ref>
<ref type="application">Originate</ref>
<ref type="manager">Originate</ref>
<ref type="managerEvent">DialEnd</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="DialState">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when dial status has changed.</synopsis>
<syntax>
<channel_snapshot/>
<channel_snapshot prefix="Dest"/>
<parameter name="DialStatus">
<para> The new state of the outbound dial attempt.</para>
<enumlist>
<enum name="RINGING">
<para>The outbound channel is ringing.</para>
</enum>
<enum name="PROCEEDING">
<para>The call to the outbound channel is proceeding.</para>
</enum>
<enum name="PROGRESS">
<para>Progress has been received on the outbound channel.</para>
</enum>
</enumlist>
</parameter>
<parameter name="Forward" required="false">
<para>If the call was forwarded, where the call was
forwarded to.</para>
</parameter>
</syntax>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="DialEnd">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a dial action has completed.</synopsis>
<syntax>
<channel_snapshot/>
<channel_snapshot prefix="Dest"/>
<parameter name="DialStatus">
<para>The result of the dial operation.</para>
<enumlist>
<enum name="ABORT">
<para>The call was aborted.</para>
</enum>
<enum name="ANSWER">
<para>The caller answered.</para>
</enum>
<enum name="BUSY">
<para>The caller was busy.</para>
</enum>
<enum name="CANCEL">
<para>The caller cancelled the call.</para>
</enum>
<enum name="CHANUNAVAIL">
<para>The requested channel is unavailable.</para>
</enum>
<enum name="CONGESTION">
<para>The called party is congested.</para>
</enum>
<enum name="CONTINUE">
<para>The dial completed, but the caller elected
to continue in the dialplan.</para>
</enum>
<enum name="GOTO">
<para>The dial completed, but the caller jumped to
a dialplan location.</para>
<para>If known, the location the caller is jumping
to will be appended to the result following a
":".</para>
</enum>
<enum name="NOANSWER">
<para>The called party failed to answer.</para>
</enum>
</enumlist>
</parameter>
<parameter name="Forward" required="false">
<para>If the call was forwarded, where the call was
forwarded to.</para>
</parameter>
</syntax>
<see-also>
<ref type="application">Dial</ref>
<ref type="application">Originate</ref>
<ref type="manager">Originate</ref>
<ref type="managerEvent">DialBegin</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="Hold">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel goes on hold.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="MusicClass">
<para>The suggested MusicClass, if provided.</para>
</parameter>
</syntax>
<see-also>
<ref type="managerEvent">Unhold</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="Unhold">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel goes off hold.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">Hold</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="ChanSpyStart">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when one channel begins spying on another channel.</synopsis>
<syntax>
<channel_snapshot prefix="Spyer"/>
<channel_snapshot prefix="Spyee"/>
</syntax>
<see-also>
<ref type="managerEvent">ChanSpyStop</ref>
<ref type="application">ChanSpy</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="ChanSpyStop">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when a channel has stopped spying.</synopsis>
<syntax>
<channel_snapshot prefix="Spyer"/>
<channel_snapshot prefix="Spyee"/>
</syntax>
<see-also>
<ref type="managerEvent">ChanSpyStart</ref>
<ref type="application">ChanSpy</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="HangupHandlerRun">
<managerEventInstance class="EVENT_FLAG_DIALPLAN">
<synopsis>Raised when a hangup handler is about to be called.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Handler">
<para>Hangup handler parameter string passed to the Gosub application.</para>
</parameter>
</syntax>
<see-also>
<ref type="function">CHANNEL</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="HangupHandlerPop">
<managerEventInstance class="EVENT_FLAG_DIALPLAN">
<synopsis>
Raised when a hangup handler is removed from the handler stack
by the CHANNEL() function.
</synopsis>
<syntax>
<channel_snapshot/>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='HangupHandlerRun']/managerEventInstance/syntax/parameter)" />
</syntax>
<see-also>
<ref type="managerEvent">HangupHandlerPush</ref>
<ref type="function">CHANNEL</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="HangupHandlerPush">
<managerEventInstance class="EVENT_FLAG_DIALPLAN">
<synopsis>
Raised when a hangup handler is added to the handler stack by
the CHANNEL() function.
</synopsis>
<syntax>
<channel_snapshot/>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='HangupHandlerRun']/managerEventInstance/syntax/parameter)" />
</syntax>
<see-also>
<ref type="managerEvent">HangupHandlerPop</ref>
<ref type="function">CHANNEL</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="FAXStatus">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>
Raised periodically during a fax transmission.
</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Operation">
<enumlist>
<enum name="gateway"/>
<enum name="receive"/>
<enum name="send"/>
</enumlist>
</parameter>
<parameter name="Status">
<para>A text message describing the current status of the fax</para>
</parameter>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='ReceiveFAX']/managerEventInstance/syntax/parameter[@name='LocalStationID'])" />
<xi:include xpointer="xpointer(/docs/managerEvent[@name='ReceiveFAX']/managerEventInstance/syntax/parameter[@name='FileName'])" />
</syntax>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="ReceiveFAX">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>
Raised when a receive fax operation has completed.
</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="LocalStationID">
<para>The value of the <variable>LOCALSTATIONID</variable> channel variable</para>
</parameter>
<parameter name="RemoteStationID">
<para>The value of the <variable>REMOTESTATIONID</variable> channel variable</para>
</parameter>
<parameter name="PagesTransferred">
<para>The number of pages that have been transferred</para>
</parameter>
<parameter name="Resolution">
<para>The negotiated resolution</para>
</parameter>
<parameter name="TransferRate">
<para>The negotiated transfer rate</para>
</parameter>
<parameter name="FileName" multiple="yes">
<para>The files being affected by the fax operation</para>
</parameter>
</syntax>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="SendFAX">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>
Raised when a send fax operation has completed.
</synopsis>
<syntax>
<channel_snapshot/>
<xi:include xpointer="xpointer(/docs/managerEvent[@name='ReceiveFAX']/managerEventInstance/syntax/parameter)" />
</syntax>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="MusicOnHoldStart">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when music on hold has started on a channel.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Class">
<para>The class of music being played on the channel</para>
</parameter>
</syntax>
<see-also>
<ref type="managerEvent">MusicOnHoldStop</ref>
<ref type="application">StartMusicOnHold</ref>
<ref type="application">MusicOnHold</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="MusicOnHoldStop">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when music on hold has stopped on a channel.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">MusicOnHoldStart</ref>
<ref type="application">StopMusicOnHold</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="MonitorStart">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when monitoring has started on a channel.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">MonitorStop</ref>
<ref type="application">Monitor</ref>
<ref type="manager">Monitor</ref>
</see-also>
</managerEventInstance>
</managerEvent>
<managerEvent language="en_US" name="MonitorStop">
<managerEventInstance class="EVENT_FLAG_CALL">
<synopsis>Raised when monitoring has stopped on a channel.</synopsis>
<syntax>
<channel_snapshot/>
</syntax>
<see-also>
<ref type="managerEvent">MonitorStart</ref>
<ref type="application">StopMonitor</ref>
<ref type="manager">StopMonitor</ref>
</see-also>
</managerEventInstance>
</managerEvent>
***/
/*! \brief The \ref stasis subscription returned by the forwarding of the channel topic
* to the manager topic
*/
static struct stasis_forward *topic_forwarder;
struct ast_str *ast_manager_build_channel_state_string_prefix(
const struct ast_channel_snapshot *snapshot,
const char *prefix)
{
struct ast_str *out;
char *caller_name;
char *connected_name;
int res;
if (snapshot->base->tech_properties & AST_CHAN_TP_INTERNAL) {
return NULL;
}
out = ast_str_create(1024);
if (!out) {
return NULL;
}
caller_name = ast_escape_c_alloc(snapshot->caller->name);
connected_name = ast_escape_c_alloc(snapshot->connected->name);
res = ast_str_set(&out, 0,
"%sChannel: %s\r\n"
"%sChannelState: %u\r\n"
"%sChannelStateDesc: %s\r\n"
"%sCallerIDNum: %s\r\n"
"%sCallerIDName: %s\r\n"
"%sConnectedLineNum: %s\r\n"
"%sConnectedLineName: %s\r\n"
"%sLanguage: %s\r\n"
"%sAccountCode: %s\r\n"
"%sContext: %s\r\n"
"%sExten: %s\r\n"
"%sPriority: %d\r\n"
"%sUniqueid: %s\r\n"
"%sLinkedid: %s\r\n",
prefix, snapshot->base->name,
prefix, snapshot->state,
prefix, ast_state2str(snapshot->state),
prefix, S_OR(snapshot->caller->number, "<unknown>"),
prefix, S_OR(caller_name, "<unknown>"),
prefix, S_OR(snapshot->connected->number, "<unknown>"),
prefix, S_OR(connected_name, "<unknown>"),
prefix, snapshot->base->language,
prefix, snapshot->base->accountcode,
prefix, snapshot->dialplan->context,
prefix, snapshot->dialplan->exten,
prefix, snapshot->dialplan->priority,
prefix, snapshot->base->uniqueid,
prefix, snapshot->peer->linkedid);
ast_free(caller_name);
ast_free(connected_name);
if (!res) {
ast_free(out);
return NULL;
}
if (snapshot->manager_vars) {
struct ast_var_t *var;
char *val;
AST_LIST_TRAVERSE(snapshot->manager_vars, var, entries) {
val = ast_escape_c_alloc(var->value);
ast_str_append(&out, 0, "%sChanVariable: %s=%s\r\n",
prefix,
var->name, S_OR(val, ""));
ast_free(val);
}
}
return out;
}
struct ast_str *ast_manager_build_channel_state_string(
const struct ast_channel_snapshot *snapshot)
{
return ast_manager_build_channel_state_string_prefix(snapshot, "");
}
/*! \brief Typedef for callbacks that get called on channel snapshot updates */
typedef struct ast_manager_event_blob *(*channel_snapshot_monitor)(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot);
/*! \brief Handle channel state changes */
static struct ast_manager_event_blob *channel_state_change(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot)
{
int is_hungup, was_hungup;
/* The Newchannel, Newstate and Hangup events are closely related, in
* in that they are mutually exclusive, basically different flavors
* of a new channel state event.
*/
if (!old_snapshot) {
return ast_manager_event_blob_create(
EVENT_FLAG_CALL, "Newchannel", NO_EXTRA_FIELDS);
}
was_hungup = ast_test_flag(&old_snapshot->flags, AST_FLAG_DEAD) ? 1 : 0;
is_hungup = ast_test_flag(&new_snapshot->flags, AST_FLAG_DEAD) ? 1 : 0;
if (!was_hungup && is_hungup) {
return ast_manager_event_blob_create(
EVENT_FLAG_CALL, "Hangup",
"Cause: %d\r\n"
"Cause-txt: %s\r\n",
new_snapshot->hangup->cause,
ast_cause2str(new_snapshot->hangup->cause));
}
if (old_snapshot->state != new_snapshot->state) {
return ast_manager_event_blob_create(
EVENT_FLAG_CALL, "Newstate", NO_EXTRA_FIELDS);
}
/* No event */
return NULL;
}
static struct ast_manager_event_blob *channel_newexten(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot)
{
/* Empty application is not valid for a Newexten event */
if (ast_strlen_zero(new_snapshot->dialplan->appl)) {
return NULL;
}
/* Ignore any updates if we're hungup */
if (ast_test_flag(&new_snapshot->flags, AST_FLAG_DEAD)) {
return NULL;
}
/* Ignore updates if the CEP is unchanged */
if (old_snapshot && ast_channel_snapshot_cep_equal(old_snapshot, new_snapshot)) {
return NULL;
}
/* DEPRECATED: Extension field deprecated in 12; remove in 14 */
return ast_manager_event_blob_create(
EVENT_FLAG_DIALPLAN, "Newexten",
"Extension: %s\r\n"
"Application: %s\r\n"
"AppData: %s\r\n",
new_snapshot->dialplan->exten,
new_snapshot->dialplan->appl,
new_snapshot->dialplan->data);
}
static struct ast_manager_event_blob *channel_new_callerid(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot)
{
struct ast_manager_event_blob *res;
char *callerid;
/* No NewCallerid event on first channel snapshot */
if (!old_snapshot) {
return NULL;
}
if (ast_channel_snapshot_caller_id_equal(old_snapshot, new_snapshot)) {
return NULL;
}
if (!(callerid = ast_escape_c_alloc(
ast_describe_caller_presentation(new_snapshot->caller->pres)))) {
return NULL;
}
res = ast_manager_event_blob_create(
EVENT_FLAG_CALL, "NewCallerid",
"CID-CallingPres: %d (%s)\r\n",
new_snapshot->caller->pres,
callerid);
ast_free(callerid);
return res;
}
static struct ast_manager_event_blob *channel_new_connected_line(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot)
{
/* No NewConnectedLine event on first channel snapshot */
if (!old_snapshot) {
return NULL;
}
if (ast_channel_snapshot_connected_line_equal(old_snapshot, new_snapshot)) {
return NULL;
}
return ast_manager_event_blob_create(
EVENT_FLAG_CALL, "NewConnectedLine", "%s", "");
}
static struct ast_manager_event_blob *channel_new_accountcode(
struct ast_channel_snapshot *old_snapshot,
struct ast_channel_snapshot *new_snapshot)
{
if (!old_snapshot) {
return NULL;
}
if (!strcmp(old_snapshot->base->accountcode, new_snapshot->base->accountcode)) {
return NULL;
}
return ast_manager_event_blob_create(
EVENT_FLAG_CALL, "NewAccountCode",
"OldAccountCode: %s\r\n", old_snapshot->base->accountcode);
}
channel_snapshot_monitor channel_monitors[] = {
channel_state_change,
channel_newexten,
channel_new_callerid,
channel_new_accountcode,
channel_new_connected_line,
};
static void channel_snapshot_update(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
struct ast_channel_snapshot_update *update;
size_t i;
update = stasis_message_data(message);
for (i = 0; i < ARRAY_LEN(channel_monitors); ++i) {
RAII_VAR(struct ast_manager_event_blob *, ev, NULL, ao2_cleanup);
ev = channel_monitors[i](update->old_snapshot, update->new_snapshot);
if (!ev) {
continue;
}
/* If we haven't already, build the channel event string */
if (!channel_event_string) {
channel_event_string =
ast_manager_build_channel_state_string(update->new_snapshot);
if (!channel_event_string) {
return;
}
}
manager_event(ev->event_flags, ev->manager_event, "%s%s",
ast_str_buffer(channel_event_string),
ev->extra_fields);
}
}
static void publish_basic_channel_event(const char *event, int class, struct ast_channel_snapshot *snapshot)
{
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
channel_event_string = ast_manager_build_channel_state_string(snapshot);
if (!channel_event_string) {
return;
}
manager_event(class, event,
"%s",
ast_str_buffer(channel_event_string));
}
static void channel_hangup_request_cb(void *data,
struct stasis_subscription *sub,
struct stasis_message *message)
{
struct ast_channel_blob *obj = stasis_message_data(message);
struct ast_str *extra;
struct ast_str *channel_event_string;
struct ast_json *cause;
int is_soft;
char *manager_event = "HangupRequest";
if (!obj->snapshot) {
/* No snapshot? Likely an earlier allocation failure creating it. */
return;
}
extra = ast_str_create(20);
if (!extra) {
return;
}
channel_event_string = ast_manager_build_channel_state_string(obj->snapshot);
if (!channel_event_string) {
ast_free(extra);
return;
}
cause = ast_json_object_get(obj->blob, "cause");
if (cause) {
ast_str_append(&extra, 0,
"Cause: %jd\r\n",
ast_json_integer_get(cause));
}
is_soft = ast_json_is_true(ast_json_object_get(obj->blob, "soft"));
if (is_soft) {
manager_event = "SoftHangupRequest";
}
manager_event(EVENT_FLAG_CALL, manager_event,
"%s%s",
ast_str_buffer(channel_event_string),
ast_str_buffer(extra));
ast_free(channel_event_string);
ast_free(extra);
}
static void channel_chanspy_stop_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
RAII_VAR(struct ast_str *, spyer_channel_string, NULL, ast_free);
struct ast_channel_snapshot *spyer;
struct ast_multi_channel_blob *payload = stasis_message_data(message);
spyer = ast_multi_channel_blob_get_channel(payload, "spyer_channel");
if (!spyer) {
ast_log(AST_LOG_WARNING, "Received ChanSpy Start event with no spyer channel!\n");
return;
}
spyer_channel_string = ast_manager_build_channel_state_string_prefix(spyer, "Spyer");
if (!spyer_channel_string) {
return;
}
manager_event(EVENT_FLAG_CALL, "ChanSpyStop",
"%s",
ast_str_buffer(spyer_channel_string));
}
static void channel_chanspy_start_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
RAII_VAR(struct ast_str *, spyer_channel_string, NULL, ast_free);
RAII_VAR(struct ast_str *, spyee_channel_string, NULL, ast_free);
struct ast_channel_snapshot *spyer;
struct ast_channel_snapshot *spyee;
struct ast_multi_channel_blob *payload = stasis_message_data(message);
spyer = ast_multi_channel_blob_get_channel(payload, "spyer_channel");
if (!spyer) {
ast_log(AST_LOG_WARNING, "Received ChanSpy Start event with no spyer channel!\n");
return;
}
spyee = ast_multi_channel_blob_get_channel(payload, "spyee_channel");
if (!spyee) {
ast_log(AST_LOG_WARNING, "Received ChanSpy Start event with no spyee channel!\n");
return;
}
spyer_channel_string = ast_manager_build_channel_state_string_prefix(spyer, "Spyer");
if (!spyer_channel_string) {
return;
}
spyee_channel_string = ast_manager_build_channel_state_string_prefix(spyee, "Spyee");
if (!spyee_channel_string) {
return;
}
manager_event(EVENT_FLAG_CALL, "ChanSpyStart",
"%s%s",
ast_str_buffer(spyer_channel_string),
ast_str_buffer(spyee_channel_string));
}
static void channel_dtmf_begin_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
struct ast_channel_blob *obj = stasis_message_data(message);
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
const char *digit =
ast_json_string_get(ast_json_object_get(obj->blob, "digit"));
const char *direction =
ast_json_string_get(ast_json_object_get(obj->blob, "direction"));
channel_event_string = ast_manager_build_channel_state_string(obj->snapshot);
if (!channel_event_string) {
return;
}
/*** DOCUMENTATION
<managerEventInstance>
<synopsis>Raised when a DTMF digit has started on a channel.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Digit">
<para>DTMF digit received or transmitted (0-9, A-E, # or *</para>
</parameter>
<parameter name="Direction">
<enumlist>
<enum name="Received"/>
<enum name="Sent"/>
</enumlist>
</parameter>
</syntax>
<see-also>
<ref type="managerEvent">DTMFEnd</ref>
</see-also>
</managerEventInstance>
***/
manager_event(EVENT_FLAG_DTMF, "DTMFBegin",
"%s"
"Digit: %s\r\n"
"Direction: %s\r\n",
ast_str_buffer(channel_event_string),
digit, direction);
}
static void channel_dtmf_end_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
struct ast_channel_blob *obj = stasis_message_data(message);
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
const char *digit =
ast_json_string_get(ast_json_object_get(obj->blob, "digit"));
const char *direction =
ast_json_string_get(ast_json_object_get(obj->blob, "direction"));
long duration_ms =
ast_json_integer_get(ast_json_object_get(obj->blob, "duration_ms"));
channel_event_string = ast_manager_build_channel_state_string(obj->snapshot);
if (!channel_event_string) {
return;
}
/*** DOCUMENTATION
<managerEventInstance>
<synopsis>Raised when a DTMF digit has ended on a channel.</synopsis>
<syntax>
<channel_snapshot/>
<parameter name="Digit">
<para>DTMF digit received or transmitted (0-9, A-E, # or *</para>
</parameter>
<parameter name="DurationMs">
<para>Duration (in milliseconds) DTMF was sent/received</para>
</parameter>
<parameter name="Direction">
<enumlist>
<enum name="Received"/>
<enum name="Sent"/>
</enumlist>
</parameter>
</syntax>
<see-also>
<ref type="managerEvent">DTMFBegin</ref>
</see-also>
</managerEventInstance>
***/
manager_event(EVENT_FLAG_DTMF, "DTMFEnd",
"%s"
"Digit: %s\r\n"
"DurationMs: %ld\r\n"
"Direction: %s\r\n",
ast_str_buffer(channel_event_string),
digit, duration_ms, direction);
}
static void channel_hangup_handler_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
struct ast_channel_blob *payload = stasis_message_data(message);
const char *action = ast_json_string_get(ast_json_object_get(payload->blob, "type"));
const char *handler = ast_json_string_get(ast_json_object_get(payload->blob, "handler"));
const char *event;
channel_event_string = ast_manager_build_channel_state_string(payload->snapshot);
if (!channel_event_string) {
return;
}
if (!strcmp(action, "run")) {
event = "HangupHandlerRun";
} else if (!strcmp(action, "pop")) {
event = "HangupHandlerPop";
} else if (!strcmp(action, "push")) {
event = "HangupHandlerPush";
} else {
return;
}
manager_event(EVENT_FLAG_DIALPLAN, event,
"%s"
"Handler: %s\r\n",
ast_str_buffer(channel_event_string),
handler);
}
static void channel_fax_cb(void *data, struct stasis_subscription *sub,
struct stasis_message *message)
{
RAII_VAR(struct ast_str *, channel_event_string, NULL, ast_free);
RAII_VAR(struct ast_str *, event_buffer, ast_str_create(256), ast_free);
struct ast_channel_blob *payload = stasis_message_data(message);
const char *type = ast_json_string_get(ast_json_object_get(payload->blob, "type"));
struct ast_json *operation = ast_json_object_get(payload->blob, "operation");
struct ast_json *status = ast_json_object_get(payload->blob, "status");
struct ast_json *local_station_id = ast_json_object_get(payload->blob, "local_station_id");
struct ast_json *remote_station_id = ast_json_object_get(payload->blob, "remote_station_id");