resource_bridges.c File Reference

Implementation for ARI stubs. More...

#include "asterisk.h"
#include "resource_bridges.h"
#include "asterisk/stasis.h"
#include "asterisk/stasis_bridges.h"
#include "asterisk/stasis_app.h"
#include "asterisk/stasis_app_impl.h"
#include "asterisk/stasis_app_playback.h"
#include "asterisk/stasis_app_recording.h"
#include "asterisk/stasis_channels.h"
#include "asterisk/core_unreal.h"
#include "asterisk/channel.h"
#include "asterisk/bridge.h"
#include "asterisk/format_cap.h"
#include "asterisk/file.h"
#include "asterisk/musiconhold.h"
#include "asterisk/format_cache.h"

Include dependency graph for resource_bridges.c:

Go to the source code of this file.

Data Structures
struct	bridge_channel_control_thread_data
struct	control_list

Enumerations
enum	play_found_result { PLAY_FOUND_SUCCESS , PLAY_FOUND_FAILURE , PLAY_FOUND_CHANNEL_UNAVAILABLE }

Functions
static void	ari_bridges_handle_play (const char *args_bridge_id, const char **args_media, size_t args_media_count, const char *args_format, const char *args_lang, int args_offset_ms, int args_skipms, const char *args_playback_id, struct ast_ari_response *response)
static enum play_found_result	ari_bridges_play_found (const char **args_media, size_t args_media_count, const char *args_lang, int args_offset_ms, int args_skipms, const char *args_playback_id, struct ast_ari_response *response, struct ast_bridge *bridge, struct ast_channel *found_channel)
	Performs common setup for a bridge playback operation with both new controls and when existing controls are found.
static int	ari_bridges_play_helper (const char **args_media, size_t args_media_count, const char *args_lang, int args_offset_ms, int args_skipms, const char *args_playback_id, struct ast_ari_response *response, struct ast_bridge *bridge, struct stasis_app_control *control, struct ast_json **json, char **playback_url)
	Performs common setup for a bridge playback operation with both new controls and when existing controls are found.
static void	ari_bridges_play_new (const char **args_media, size_t args_media_count, const char *args_format, const char *args_lang, int args_offset_ms, int args_skipms, const char *args_playback_id, struct ast_ari_response *response, struct ast_bridge *bridge)
void	ast_ari_bridges_add_channel (struct ast_variable *headers, struct ast_ari_bridges_add_channel_args *args, struct ast_ari_response *response)
	Add a channel to a bridge.
void	ast_ari_bridges_clear_video_source (struct ast_variable *headers, struct ast_ari_bridges_clear_video_source_args *args, struct ast_ari_response *response)
	Removes any explicit video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants. When no explicit video source is set, talk detection will be used to determine the active video stream.
void	ast_ari_bridges_create (struct ast_variable *headers, struct ast_ari_bridges_create_args *args, struct ast_ari_response *response)
	Create a new bridge.
void	ast_ari_bridges_create_with_id (struct ast_variable *headers, struct ast_ari_bridges_create_with_id_args *args, struct ast_ari_response *response)
	Create a new bridge.
void	ast_ari_bridges_destroy (struct ast_variable *headers, struct ast_ari_bridges_destroy_args *args, struct ast_ari_response *response)
	Shut down a bridge.
void	ast_ari_bridges_get (struct ast_variable *headers, struct ast_ari_bridges_get_args *args, struct ast_ari_response *response)
	Get bridge details.
void	ast_ari_bridges_list (struct ast_variable *headers, struct ast_ari_bridges_list_args *args, struct ast_ari_response *response)
	List all active bridges in Asterisk.
void	ast_ari_bridges_play (struct ast_variable *headers, struct ast_ari_bridges_play_args *args, struct ast_ari_response *response)
	Start playback of media on a bridge.
void	ast_ari_bridges_play_with_id (struct ast_variable *headers, struct ast_ari_bridges_play_with_id_args *args, struct ast_ari_response *response)
	Start playback of media on a bridge.
void	ast_ari_bridges_record (struct ast_variable *headers, struct ast_ari_bridges_record_args *args, struct ast_ari_response *response)
	Start a recording.
void	ast_ari_bridges_remove_channel (struct ast_variable *headers, struct ast_ari_bridges_remove_channel_args *args, struct ast_ari_response *response)
	Remove a channel from a bridge.
void	ast_ari_bridges_set_video_source (struct ast_variable *headers, struct ast_ari_bridges_set_video_source_args *args, struct ast_ari_response *response)
	Set a channel as the video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants.
void	ast_ari_bridges_start_moh (struct ast_variable *headers, struct ast_ari_bridges_start_moh_args *args, struct ast_ari_response *response)
	Play music on hold to a bridge or change the MOH class that is playing.
void	ast_ari_bridges_stop_moh (struct ast_variable *headers, struct ast_ari_bridges_stop_moh_args *args, struct ast_ari_response *response)
	Stop playing music on hold to a bridge.
static void *	bridge_channel_control_thread (void *data)
static int	bridge_set_video_source_cb (struct stasis_app_control *control, struct ast_channel *chan, void *data)
static int	check_add_remove_channel (struct ast_ari_response *response, struct stasis_app_control *control, enum stasis_app_control_channel_result result)
static struct control_list *	control_list_create (struct ast_ari_response *response, size_t count, const char **channels)
static void	control_list_dtor (void *obj)
static struct ast_bridge *	find_bridge (struct ast_ari_response *response, const char *bridge_id)
	Finds a bridge, filling the response with an error, if appropriate.
static struct stasis_app_control *	find_channel_control (struct ast_ari_response *response, const char *channel_id)
	Finds the control object for a channel, filling the response with an error, if appropriate.
static struct ast_channel *	prepare_bridge_media_channel (const char *type, struct ast_format *channel_format)

Detailed Description

Implementation for ARI stubs.

Author

David M. Lee, II dlee@.nosp@m.digi.nosp@m.um.co.nosp@m.m

Definition in file resource_bridges.c.

Enumeration Type Documentation

play_found_result

enum play_found_result

Enumerator
PLAY_FOUND_SUCCESS
PLAY_FOUND_FAILURE
PLAY_FOUND_CHANNEL_UNAVAILABLE

Definition at line 572 of file resource_bridges.c.

                       {
    PLAY_FOUND_SUCCESS,
    PLAY_FOUND_FAILURE,
    PLAY_FOUND_CHANNEL_UNAVAILABLE,
};

Function Documentation

ari_bridges_handle_play()

static void ari_bridges_handle_play ( const char *  args_bridge_id, const char **  args_media, size_t  args_media_count, const char *  args_format, const char *  args_lang, int  args_offset_ms, int  args_skipms, const char *  args_playback_id, struct ast_ari_response *  response  )

static

Definition at line 637 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args_bridge_id), ao2_cleanup);
    struct ast_channel *play_channel;
 
    ast_assert(response != NULL);
 
    if (!bridge) {
        return;
    }
 
    while ((play_channel = stasis_app_bridge_playback_channel_find(bridge))) {
        /* If ari_bridges_play_found fails because the channel is unavailable for
         * playback, The channel will be removed from the playback list soon. We
         * can keep trying to get channels from the list until we either get one
         * that will work or else there isn't a channel for this bridge anymore,
         * in which case we'll revert to ari_bridges_play_new.
         */
        if (ari_bridges_play_found(args_media, args_media_count, args_lang,
                args_offset_ms, args_skipms, args_playback_id, response, bridge,
                play_channel) == PLAY_FOUND_CHANNEL_UNAVAILABLE) {
            continue;
        }
        return;
    }
 
    ari_bridges_play_new(args_media, args_media_count, args_format, args_lang, args_offset_ms,
        args_skipms, args_playback_id, response, bridge);
}

References ao2_cleanup, ari_bridges_play_found(), ari_bridges_play_new(), ast_assert, ast_channel::bridge, find_bridge(), NULL, PLAY_FOUND_CHANNEL_UNAVAILABLE, RAII_VAR, and stasis_app_bridge_playback_channel_find().

Referenced by ast_ari_bridges_play(), and ast_ari_bridges_play_with_id().

ari_bridges_play_found()

static enum play_found_result ari_bridges_play_found ( const char **  args_media, size_t  args_media_count, const char *  args_lang, int  args_offset_ms, int  args_skipms, const char *  args_playback_id, struct ast_ari_response *  response, struct ast_bridge *  bridge, struct ast_channel *  found_channel  )

static

Performs common setup for a bridge playback operation with both new controls and when existing controls are found.

Parameters

args_media	medias to play
args_media_count	number of media items in media
args_lang	language string split from arguments
args_offset_ms	milliseconds offset split from arguments
args_skipms
args_playback_id	string to use for playback split from arguments (null valid)
response	ARI response being built
bridge	Bridge the playback is being performed on
found_channel	The channel that was found controlling playback

Return values

PLAY_FOUND_SUCCESS	The operation was successful
PLAY_FOUND_FAILURE	The operation failed (terminal failure)
PLAY_FOUND_CHANNEL_UNAVAILABLE	The operation failed because the channel requested to playback with is breaking down.

Definition at line 598 of file resource_bridges.c.

{
    RAII_VAR(struct ast_channel *, play_channel, found_channel, ao2_cleanup);
    RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
    RAII_VAR(char *, playback_url, NULL, ast_free);
    RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
 
    control = stasis_app_control_find_by_channel(play_channel);
    if (!control) {
        return PLAY_FOUND_CHANNEL_UNAVAILABLE;
    }
 
    ao2_lock(control);
    if (stasis_app_control_is_done(control)) {
        /* We failed to queue the action. Bailout and return that we aren't terminal. */
        ao2_unlock(control);
        return PLAY_FOUND_CHANNEL_UNAVAILABLE;
    }
 
    if (ari_bridges_play_helper(args_media, args_media_count,
            args_lang, args_offset_ms, args_skipms, args_playback_id,
            response, bridge, control, &json, &playback_url)) {
        ao2_unlock(control);
        return PLAY_FOUND_FAILURE;
    }
    ao2_unlock(control);
 
    ast_ari_response_created(response, playback_url, ast_json_ref(json));
    return PLAY_FOUND_SUCCESS;
}

References ao2_cleanup, ao2_lock, ao2_unlock, ari_bridges_play_helper(), ast_ari_response_created(), ast_free, ast_json_ref(), ast_json_unref(), NULL, PLAY_FOUND_CHANNEL_UNAVAILABLE, PLAY_FOUND_FAILURE, PLAY_FOUND_SUCCESS, RAII_VAR, stasis_app_control_find_by_channel(), and stasis_app_control_is_done().

Referenced by ari_bridges_handle_play().

ari_bridges_play_helper()

static int ari_bridges_play_helper ( const char **  args_media, size_t  args_media_count, const char *  args_lang, int  args_offset_ms, int  args_skipms, const char *  args_playback_id, struct ast_ari_response *  response, struct ast_bridge *  bridge, struct stasis_app_control *  control, struct ast_json **  json, char **  playback_url  )

static

Performs common setup for a bridge playback operation with both new controls and when existing controls are found.

Parameters

args_media	medias to play
args_media_count	number of media items in media
args_lang	language string split from arguments
args_offset_ms	milliseconds offset split from arguments
args_skipms
args_playback_id	string to use for playback split from arguments (null valid)
response	ARI response being built
bridge	Bridge the playback is being performed on
control	Control being used for the playback channel
json	contents of the response to ARI
playback_url	stores playback URL for use with response

Return values

-1	operation failed

Returns

operation was successful

Definition at line 363 of file resource_bridges.c.

{
    RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
    RAII_VAR(struct stasis_app_playback *, playback, NULL, ao2_cleanup);
 
    const char *language;
 
    snapshot = stasis_app_control_get_snapshot(control);
    if (!snapshot) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Failed to get control snapshot");
        return -1;
    }
 
    language = S_OR(args_lang, snapshot->base->language);
 
    playback = stasis_app_control_play_uri(control, args_media, args_media_count,
        language, bridge->uniqueid, STASIS_PLAYBACK_TARGET_BRIDGE, args_skipms,
        args_offset_ms, args_playback_id);
 
    if (!playback) {
        ast_ari_response_alloc_failed(response);
        return -1;
    }
 
    if (ast_asprintf(playback_url, "/playbacks/%s",
            stasis_app_playback_get_id(playback)) == -1) {
        ast_ari_response_alloc_failed(response);
        return -1;
    }
 
    *json = stasis_app_playback_to_json(playback);
    if (!*json) {
        ast_ari_response_alloc_failed(response);
        return -1;
    }
 
    return 0;
}

References ao2_cleanup, ast_ari_response_alloc_failed(), ast_ari_response_error(), ast_asprintf, ast_channel_snapshot::base, ast_channel::bridge, language, ast_channel_snapshot_base::language, NULL, RAII_VAR, S_OR, ast_channel::snapshot, stasis_app_control_get_snapshot(), stasis_app_control_play_uri(), stasis_app_playback_get_id(), stasis_app_playback_to_json(), STASIS_PLAYBACK_TARGET_BRIDGE, and ast_bridge::uniqueid.

Referenced by ari_bridges_play_found(), and ari_bridges_play_new().

ari_bridges_play_new()

static void ari_bridges_play_new ( const char **  args_media, size_t  args_media_count, const char *  args_format, const char *  args_lang, int  args_offset_ms, int  args_skipms, const char *  args_playback_id, struct ast_ari_response *  response, struct ast_bridge *  bridge  )

static

Definition at line 413 of file resource_bridges.c.

{
    RAII_VAR(struct ast_channel *, play_channel, NULL, ast_hangup);
    RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
    RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
    RAII_VAR(struct stasis_forward *, channel_forward, NULL, stasis_forward_cancel);
    RAII_VAR(char *, playback_url, NULL, ast_free);
 
    struct stasis_topic *channel_topic;
    struct stasis_topic *bridge_topic;
    struct bridge_channel_control_thread_data *thread_data;
    pthread_t threadid;
    struct ast_format *channel_format = NULL;
 
    struct ast_frame prog = {
        .frametype = AST_FRAME_CONTROL,
        .subclass.integer = AST_CONTROL_PROGRESS,
    };
 
    /*
     * Determine the format for the playback channel.
     * If a format was specified, use that if it's valid.
     * Otherwise, if the bridge is empty, use slin.
     * If the bridge has one channel, use that channel's raw write format.
     * If the bridge has multiple channels, use the slin format that
     * will handle the highest sample rate of the raw write format of all the channels.
     */
    if (!ast_strlen_zero(args_format)) {
        channel_format = ast_format_cache_get(args_format);
        if (!channel_format) {
            ast_ari_response_error(
                response, 422, "Unprocessable Entity",
                "specified announcer_format is unknown on this system");
            return;
        }
    } else {
        ast_bridge_lock(bridge);
        if (bridge->num_channels == 0) {
            channel_format = ao2_bump(ast_format_slin);
        } else if (bridge->num_channels == 1) {
            struct ast_bridge_channel *bc = NULL;
            bc = AST_LIST_FIRST(&bridge->channels);
            if (bc) {
                channel_format = ast_channel_rawwriteformat(bc->chan);
                if (channel_format) {
                    channel_format = ao2_bump(channel_format);
                }
            }
        } else {
            struct ast_bridge_channel *bc = NULL;
            unsigned int max_sample_rate = 0;
            AST_LIST_TRAVERSE(&bridge->channels, bc, entry) {
                struct ast_format *fmt = ast_channel_rawwriteformat(bc->chan);
                max_sample_rate = MAX(ast_format_get_sample_rate(fmt), max_sample_rate);
            }
            channel_format = ao2_bump(ast_format_cache_get_slin_by_rate(max_sample_rate));
        }
        ast_bridge_unlock(bridge);
    }
 
    if (!channel_format) {
        channel_format = ao2_bump(ast_format_slin);
    }
 
    play_channel = prepare_bridge_media_channel("Announcer", channel_format);
    ao2_cleanup(channel_format);
 
    if (!play_channel) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Could not create playback channel");
        return;
    }
    ast_debug(1, "Created announcer channel '%s'\n", ast_channel_name(play_channel));
 
    bridge_topic = ast_bridge_topic(bridge);
    channel_topic = ast_channel_topic(play_channel);
 
    /* Forward messages from the playback channel topic to the bridge topic so that anything listening for
     * messages on the bridge topic will receive the playback start/stop messages. Other messages that would
     * go to this channel will be suppressed since the channel is marked as internal.
     */
    if (!bridge_topic || !channel_topic || !(channel_forward = stasis_forward_all(channel_topic, bridge_topic))) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Could not forward playback channel stasis messages to bridge topic");
        return;
    }
 
    if (ast_unreal_channel_push_to_bridge(play_channel, bridge,
        AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE | AST_BRIDGE_CHANNEL_FLAG_LONELY)) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Failed to put playback channel into the bridge");
        return;
    }
 
    control = stasis_app_control_create(play_channel);
    if (control == NULL) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    ao2_lock(control);
    if (ari_bridges_play_helper(args_media, args_media_count, args_lang,
            args_offset_ms, args_skipms, args_playback_id, response, bridge,
            control, &json, &playback_url)) {
        ao2_unlock(control);
        return;
    }
    ao2_unlock(control);
 
    if (stasis_app_bridge_playback_channel_add(bridge, play_channel, control)) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    ast_bridge_queue_everyone_else(bridge, NULL, &prog);
 
    /* Give play_channel and control reference to the thread data */
    thread_data = ast_calloc(1, sizeof(*thread_data));
    if (!thread_data) {
        stasis_app_bridge_playback_channel_remove((char *)bridge->uniqueid, control);
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    thread_data->bridge_channel = play_channel;
    thread_data->control = control;
    thread_data->forward = channel_forward;
    thread_data->bridge_id = ast_strdup(bridge->uniqueid);
    if (!thread_data->bridge_id) {
        stasis_app_bridge_playback_channel_remove((char *)bridge->uniqueid, control);
        ast_ari_response_alloc_failed(response);
        ast_free(thread_data);
        return;
    }
 
    if (ast_pthread_create_detached(&threadid, NULL, bridge_channel_control_thread, thread_data)) {
        stasis_app_bridge_playback_channel_remove((char *)bridge->uniqueid, control);
        ast_free(thread_data->bridge_id);
        ast_ari_response_alloc_failed(response);
        ast_free(thread_data);
        return;
    }
 
    /* These are owned by the other thread now, so we don't want RAII_VAR disposing of them. */
    play_channel = NULL;
    control = NULL;
    channel_forward = NULL;
 
    ast_ari_response_created(response, playback_url, ast_json_ref(json));
}

References ao2_bump, ao2_cleanup, ao2_lock, ao2_unlock, ari_bridges_play_helper(), ast_ari_response_alloc_failed(), ast_ari_response_created(), ast_ari_response_error(), AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE, AST_BRIDGE_CHANNEL_FLAG_LONELY, ast_bridge_lock, ast_bridge_queue_everyone_else(), ast_bridge_topic(), ast_bridge_unlock, ast_calloc, ast_channel_name(), ast_channel_rawwriteformat(), ast_channel_topic(), AST_CONTROL_PROGRESS, ast_debug, ast_format_cache_get, ast_format_cache_get_slin_by_rate(), ast_format_get_sample_rate(), ast_format_slin, AST_FRAME_CONTROL, ast_free, ast_hangup(), ast_json_ref(), ast_json_unref(), AST_LIST_FIRST, AST_LIST_TRAVERSE, ast_pthread_create_detached, ast_strdup, ast_strlen_zero(), ast_unreal_channel_push_to_bridge(), bc, ast_bridge_channel::bridge, bridge_channel_control_thread_data::bridge_channel, bridge_channel_control_thread(), bridge_channel_control_thread_data::bridge_id, ast_channel::channel_forward, ast_bridge::channels, bridge_channel_control_thread_data::control, ast_bridge_channel::entry, bridge_channel_control_thread_data::forward, ast_frame::frametype, MAX, NULL, ast_bridge::num_channels, prepare_bridge_media_channel(), RAII_VAR, stasis_app_bridge_playback_channel_add(), stasis_app_bridge_playback_channel_remove(), stasis_app_control_create(), stasis_forward_all(), stasis_forward_cancel(), and ast_bridge::uniqueid.

Referenced by ari_bridges_handle_play().

ast_ari_bridges_add_channel()

void ast_ari_bridges_add_channel	(	struct ast_variable *	headers,
		struct ast_ari_bridges_add_channel_args *	args,
		struct ast_ari_response *	response
	)

Add a channel to a bridge.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 191 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
    RAII_VAR(struct control_list *, list, NULL, ao2_cleanup);
    size_t i;
    int has_error = 0;
 
    if (!bridge) {
        /* Response filled in by find_bridge() */
        return;
    }
 
    list = control_list_create(response, args->channel_count, args->channel);
    if (!list) {
        /* Response filled in by control_list_create() */
        return;
    }
 
    for (i = 0; i < list->count; ++i) {
        stasis_app_control_clear_roles(list->controls[i]);
        if (!ast_strlen_zero(args->role)) {
            if (stasis_app_control_add_role(list->controls[i], args->role)) {
                ast_ari_response_alloc_failed(response);
                return;
            }
        }
 
        /* Apply bridge features to each of the channel controls */
        if (!stasis_app_control_bridge_features_init(list->controls[i])) {
            stasis_app_control_absorb_dtmf_in_bridge(list->controls[i], args->absorb_dtmf);
            stasis_app_control_mute_in_bridge(list->controls[i], args->mute);
            stasis_app_control_inhibit_colp_in_bridge(list->controls[i], args->inhibit_connected_line_updates);
        }
    }
 
    for (i = 0; i < list->count; ++i) {
        if ((has_error = check_add_remove_channel(response, list->controls[i],
                 stasis_app_control_add_channel_to_bridge(
                    list->controls[i], bridge)))) {
            break;
        }
    }
 
    if (!has_error) {
        ast_ari_response_no_content(response);
    }
}

References ao2_cleanup, args, ast_ari_response_alloc_failed(), ast_ari_response_no_content(), ast_strlen_zero(), check_add_remove_channel(), control_list_create(), find_bridge(), NULL, RAII_VAR, stasis_app_control_absorb_dtmf_in_bridge(), stasis_app_control_add_channel_to_bridge(), stasis_app_control_add_role(), stasis_app_control_bridge_features_init(), stasis_app_control_clear_roles(), stasis_app_control_inhibit_colp_in_bridge(), and stasis_app_control_mute_in_bridge().

Referenced by ast_ari_bridges_add_channel_cb().

ast_ari_bridges_clear_video_source()

void ast_ari_bridges_clear_video_source	(	struct ast_variable *	headers,
		struct ast_ari_bridges_clear_video_source_args *	args,
		struct ast_ari_response *	response
	)

Removes any explicit video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants. When no explicit video source is set, talk detection will be used to determine the active video stream.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 1147 of file resource_bridges.c.

{
    struct ast_bridge *bridge;
 
    bridge = find_bridge(response, args->bridge_id);
    if (!bridge) {
        return;
    }
 
    ast_bridge_lock(bridge);
    ast_bridge_set_talker_src_video_mode(bridge);
    ast_bridge_unlock(bridge);
 
    ao2_ref(bridge, -1);
    ast_ari_response_no_content(response);
}

References ao2_ref, args, ast_ari_response_no_content(), ast_bridge_lock, ast_bridge_set_talker_src_video_mode(), ast_bridge_unlock, and find_bridge().

Referenced by ast_ari_bridges_clear_video_source_cb().

ast_ari_bridges_create()

void ast_ari_bridges_create	(	struct ast_variable *	headers,
		struct ast_ari_bridges_create_args *	args,
		struct ast_ari_response *	response
	)

Create a new bridge.

This bridge persists until it has been shut down, or Asterisk has been shut down.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 1026 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
    RAII_VAR(struct ast_bridge_snapshot *, snapshot, NULL, ao2_cleanup);
 
    if (ast_bridge_topic_exists(args->bridge_id)) {
        ast_ari_response_error(
            response, 409, "Conflict",
            "Bridge with id '%s' already exists", args->bridge_id);
        return;
    }
 
    bridge = stasis_app_bridge_create(args->type, args->name, args->bridge_id);
    if (!bridge) {
        ast_ari_response_error(
            response, 500, "Internal Error",
            "Unable to create bridge. Possible duplicate bridge id '%s'", args->bridge_id);
        return;
    }
 
    ast_bridge_lock(bridge);
    snapshot = ast_bridge_snapshot_create(bridge);
    ast_bridge_unlock(bridge);
 
    if (!snapshot) {
        ast_ari_response_error(
            response, 500, "Internal Error",
            "Unable to create snapshot for new bridge");
        return;
    }
 
    ast_ari_response_ok(response,
        ast_bridge_snapshot_to_json(snapshot, stasis_app_get_sanitizer()));
}

References ao2_cleanup, args, ast_ari_response_error(), ast_ari_response_ok(), ast_bridge_lock, ast_bridge_snapshot_create(), ast_bridge_snapshot_to_json(), ast_bridge_topic_exists(), ast_bridge_unlock, NULL, RAII_VAR, stasis_app_bridge_create(), and stasis_app_get_sanitizer().

Referenced by ast_ari_bridges_create_cb().

ast_ari_bridges_create_with_id()

void ast_ari_bridges_create_with_id	(	struct ast_variable *	headers,
		struct ast_ari_bridges_create_with_id_args *	args,
		struct ast_ari_response *	response
	)

Create a new bridge.

This bridge persists until it has been shut down, or Asterisk has been shut down.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 1063 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
    RAII_VAR(struct ast_bridge_snapshot *, snapshot, NULL, ao2_cleanup);
 
    if (ast_bridge_topic_exists(args->bridge_id)) {
        ast_ari_response_error(
            response, 409, "Conflict",
            "Bridge with id '%s' already exists", args->bridge_id);
        return;
    }
 
    bridge = stasis_app_bridge_create(args->type, args->name, args->bridge_id);
    if (!bridge) {
        ast_ari_response_error(
            response, 500, "Internal Error",
            "Unable to create bridge");
        return;
    }
 
    ast_bridge_lock(bridge);
    snapshot = ast_bridge_snapshot_create(bridge);
    ast_bridge_unlock(bridge);
 
    if (!snapshot) {
        ast_ari_response_error(
            response, 500, "Internal Error",
            "Unable to create snapshot for new bridge");
        return;
    }
 
    ast_ari_response_ok(response,
        ast_bridge_snapshot_to_json(snapshot, stasis_app_get_sanitizer()));
}

References ao2_cleanup, args, ast_ari_response_error(), ast_ari_response_ok(), ast_bridge_lock, ast_bridge_snapshot_create(), ast_bridge_snapshot_to_json(), ast_bridge_topic_exists(), ast_bridge_unlock, NULL, RAII_VAR, stasis_app_bridge_create(), and stasis_app_get_sanitizer().

Referenced by ast_ari_bridges_create_with_id_cb().

ast_ari_bridges_destroy()

void ast_ari_bridges_destroy	(	struct ast_variable *	headers,
		struct ast_ari_bridges_destroy_args *	args,
		struct ast_ari_response *	response
	)

Shut down a bridge.

If any channels are in this bridge, they will be removed and resume whatever they were doing beforehand.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 962 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
    if (!bridge) {
        return;
    }
 
    stasis_app_bridge_destroy(args->bridge_id);
    ast_ari_response_no_content(response);
}

References ao2_cleanup, args, ast_ari_response_no_content(), ast_channel::bridge, find_bridge(), RAII_VAR, and stasis_app_bridge_destroy().

Referenced by ast_ari_bridges_destroy_cb().

ast_ari_bridges_get()

void ast_ari_bridges_get	(	struct ast_variable *	headers,
		struct ast_ari_bridges_get_args *	args,
		struct ast_ari_response *	response
	)

Get bridge details.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 946 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge_snapshot *, snapshot, ast_bridge_get_snapshot_by_uniqueid(args->bridge_id), ao2_cleanup);
    if (!snapshot) {
        ast_ari_response_error(
            response, 404, "Not Found",
            "Bridge not found");
        return;
    }
 
    ast_ari_response_ok(response,
        ast_bridge_snapshot_to_json(snapshot, stasis_app_get_sanitizer()));
}

References ao2_cleanup, args, ast_ari_response_error(), ast_ari_response_ok(), ast_bridge_get_snapshot_by_uniqueid(), ast_bridge_snapshot_to_json(), RAII_VAR, ast_channel::snapshot, and stasis_app_get_sanitizer().

Referenced by ast_ari_bridges_get_cb().

ast_ari_bridges_list()

void ast_ari_bridges_list	(	struct ast_variable *	headers,
		struct ast_ari_bridges_list_args *	args,
		struct ast_ari_response *	response
	)

List all active bridges in Asterisk.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 975 of file resource_bridges.c.

{
    RAII_VAR(struct ao2_container *, bridges, NULL, ao2_cleanup);
    RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
    struct ao2_iterator i;
    struct ast_bridge *bridge;
 
    bridges = ast_bridges();
    if (!bridges) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    json = ast_json_array_create();
    if (!json) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    i = ao2_iterator_init(bridges, 0);
    while ((bridge = ao2_iterator_next(&i))) {
        struct ast_bridge_snapshot *snapshot;
        struct ast_json *json_bridge = NULL;
 
        /* Invisible bridges don't get shown externally and have no snapshot */
        if (ast_test_flag(&bridge->feature_flags, AST_BRIDGE_FLAG_INVISIBLE)) {
            ao2_ref(bridge, -1);
            continue;
        }
 
        snapshot = ast_bridge_get_snapshot(bridge);
        if (snapshot) {
            json_bridge = ast_bridge_snapshot_to_json(snapshot, stasis_app_get_sanitizer());
            ao2_ref(snapshot, -1);
        }
 
        ao2_ref(bridge, -1);
 
        if (!json_bridge || ast_json_array_append(json, json_bridge)) {
            ao2_iterator_destroy(&i);
            ast_ari_response_alloc_failed(response);
            return;
        }
    }
    ao2_iterator_destroy(&i);
 
    ast_ari_response_ok(response, ast_json_ref(json));
}

References ao2_cleanup, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_ref, ast_ari_response_alloc_failed(), ast_ari_response_ok(), AST_BRIDGE_FLAG_INVISIBLE, ast_bridge_get_snapshot(), ast_bridge_snapshot_to_json(), ast_bridges(), ast_json_array_append(), ast_json_array_create(), ast_json_ref(), ast_json_unref(), ast_test_flag, bridges, ast_bridge::feature_flags, NULL, RAII_VAR, and stasis_app_get_sanitizer().

Referenced by ast_ari_bridges_list_cb().

ast_ari_bridges_play()

void ast_ari_bridges_play	(	struct ast_variable *	headers,
		struct ast_ari_bridges_play_args *	args,
		struct ast_ari_response *	response
	)

Start playback of media on a bridge.

The media URI may be any of a number of URI's. Currently sound:, recording:, number:, digits:, characters:, and tone: URI's are supported. This operation creates a playback resource that can be used to control the playback of media (pause, rewind, fast forward, etc.)

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 677 of file resource_bridges.c.

{
    ari_bridges_handle_play(args->bridge_id,
    args->media,
    args->media_count,
    args->announcer_format,
    args->lang,
    args->offsetms,
    args->skipms,
    args->playback_id,
    response);
}

References args, and ari_bridges_handle_play().

Referenced by ast_ari_bridges_play_cb().

ast_ari_bridges_play_with_id()

void ast_ari_bridges_play_with_id	(	struct ast_variable *	headers,
		struct ast_ari_bridges_play_with_id_args *	args,
		struct ast_ari_response *	response
	)

Start playback of media on a bridge.

The media URI may be any of a number of URI's. Currently sound:, recording:, number:, digits:, characters:, and tone: URI's are supported. This operation creates a playback resource that can be used to control the playback of media (pause, rewind, fast forward, etc.)

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 692 of file resource_bridges.c.

{
    ari_bridges_handle_play(args->bridge_id,
    args->media,
    args->media_count,
    args->announcer_format,
    args->lang,
    args->offsetms,
    args->skipms,
    args->playback_id,
    response);
}

References args, and ari_bridges_handle_play().

Referenced by ast_ari_bridges_play_with_id_cb().

ast_ari_bridges_record()

void ast_ari_bridges_record	(	struct ast_variable *	headers,
		struct ast_ari_bridges_record_args *	args,
		struct ast_ari_response *	response
	)

Start a recording.

This records the mixed audio from all channels participating in this bridge.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 707 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
    RAII_VAR(struct ast_channel *, record_channel, NULL, ast_hangup);
    RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
    RAII_VAR(struct stasis_app_recording *, recording, NULL, ao2_cleanup);
    RAII_VAR(char *, recording_url, NULL, ast_free);
    RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
    RAII_VAR(struct stasis_app_recording_options *, options, NULL, ao2_cleanup);
    RAII_VAR(char *, uri_encoded_name, NULL, ast_free);
    RAII_VAR(struct stasis_forward *, channel_forward, NULL, stasis_forward_cancel);
 
    struct stasis_topic *channel_topic;
    struct stasis_topic *bridge_topic;
    size_t uri_name_maxlen;
    struct bridge_channel_control_thread_data *thread_data;
    pthread_t threadid;
    struct ast_format *file_format = NULL;
    struct ast_format *channel_format = NULL;
 
    ast_assert(response != NULL);
 
    if (bridge == NULL) {
        return;
    }
 
    file_format = ast_get_format_for_file_ext(args->format);
    if (!file_format) {
        ast_ari_response_error(
            response, 422, "Unprocessable Entity",
            "specified format is unknown on this system");
        return;
    }
 
    if (!ast_strlen_zero(args->recorder_format)) {
        channel_format = ast_format_cache_get(args->recorder_format);
        if (!channel_format) {
            ast_ari_response_error(
                response, 422, "Unprocessable Entity",
                "specified recorder_format is unknown on this system");
            return;
        }
    } else {
        channel_format = ao2_bump(file_format);
    }
 
    if (!(record_channel = prepare_bridge_media_channel("Recorder", channel_format))) {
        ast_ari_response_error(
            response, 500, "Internal Server Error", "Failed to create recording channel");
        return;
    }
 
    ao2_cleanup(channel_format);
 
    bridge_topic = ast_bridge_topic(bridge);
    channel_topic = ast_channel_topic(record_channel);
 
    /* Forward messages from the recording channel topic to the bridge topic so that anything listening for
     * messages on the bridge topic will receive the recording start/stop messages. Other messages that would
     * go to this channel will be suppressed since the channel is marked as internal.
     */
    if (!bridge_topic || !channel_topic || !(channel_forward = stasis_forward_all(channel_topic, bridge_topic))) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Could not forward record channel stasis messages to bridge topic");
        return;
    }
 
    if (ast_unreal_channel_push_to_bridge(record_channel, bridge,
        AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE | AST_BRIDGE_CHANNEL_FLAG_LONELY)) {
        ast_ari_response_error(
            response, 500, "Internal Error", "Failed to put recording channel into the bridge");
        return;
    }
 
    control = stasis_app_control_create(record_channel);
    if (control == NULL) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    options = stasis_app_recording_options_create(args->name, args->format);
    if (options == NULL) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    ast_string_field_build(options, target, "bridge:%s", args->bridge_id);
    options->max_silence_seconds = args->max_silence_seconds;
    options->max_duration_seconds = args->max_duration_seconds;
    options->terminate_on =
        stasis_app_recording_termination_parse(args->terminate_on);
    options->if_exists =
        stasis_app_recording_if_exists_parse(args->if_exists);
    options->beep = args->beep;
 
    if (options->terminate_on == STASIS_APP_RECORDING_TERMINATE_INVALID) {
        ast_ari_response_error(
            response, 400, "Bad Request",
            "terminateOn invalid");
        return;
    }
 
    if (options->if_exists == AST_RECORD_IF_EXISTS_ERROR) {
        ast_ari_response_error(
            response, 400, "Bad Request",
            "ifExists invalid");
        return;
    }
 
    recording = stasis_app_control_record(control, options);
    if (recording == NULL) {
        switch(errno) {
        case EINVAL:
            /* While the arguments are invalid, we should have
             * caught them prior to calling record.
             */
            ast_ari_response_error(
                response, 500, "Internal Server Error",
                "Error parsing request");
            break;
        case EEXIST:
            ast_ari_response_error(response, 409, "Conflict",
                "Recording '%s' already exists and can not be overwritten",
                args->name);
            break;
        case ENOMEM:
            ast_ari_response_alloc_failed(response);
            break;
        case EPERM:
            ast_ari_response_error(
                response, 400, "Bad Request",
                "Recording name invalid");
            break;
        default:
            ast_log(LOG_WARNING,
                "Unrecognized recording error: %s\n",
                strerror(errno));
            ast_ari_response_error(
                response, 500, "Internal Server Error",
                "Internal Server Error");
            break;
        }
        return;
    }
 
    uri_name_maxlen = strlen(args->name) * 3;
    uri_encoded_name = ast_malloc(uri_name_maxlen);
    if (!uri_encoded_name) {
        ast_ari_response_alloc_failed(response);
        return;
    }
    ast_uri_encode(args->name, uri_encoded_name, uri_name_maxlen, ast_uri_http);
 
    if (ast_asprintf(&recording_url, "/recordings/live/%s",
            uri_encoded_name) == -1) {
        recording_url = NULL;
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    json = stasis_app_recording_to_json(recording);
    if (!json) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    thread_data = ast_calloc(1, sizeof(*thread_data));
    if (!thread_data) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    thread_data->bridge_channel = record_channel;
    thread_data->control = control;
    thread_data->forward = channel_forward;
 
    if (ast_pthread_create_detached(&threadid, NULL, bridge_channel_control_thread, thread_data)) {
        ast_ari_response_alloc_failed(response);
        ast_free(thread_data);
        return;
    }
 
    /* These are owned by the other thread now, so we don't want RAII_VAR disposing of them. */
    record_channel = NULL;
    control = NULL;
    channel_forward = NULL;
 
    ast_ari_response_created(response, recording_url, ast_json_ref(json));
}

References ao2_bump, ao2_cleanup, args, ast_ari_response_alloc_failed(), ast_ari_response_created(), ast_ari_response_error(), ast_asprintf, ast_assert, AST_BRIDGE_CHANNEL_FLAG_IMMOVABLE, AST_BRIDGE_CHANNEL_FLAG_LONELY, ast_bridge_topic(), ast_calloc, ast_channel_topic(), ast_format_cache_get, ast_free, ast_get_format_for_file_ext(), ast_hangup(), ast_json_ref(), ast_json_unref(), ast_log, ast_malloc, ast_pthread_create_detached, AST_RECORD_IF_EXISTS_ERROR, ast_string_field_build, ast_strlen_zero(), ast_unreal_channel_push_to_bridge(), ast_uri_encode(), ast_uri_http, ast_channel::bridge, bridge_channel_control_thread_data::bridge_channel, bridge_channel_control_thread(), ast_channel::channel_forward, bridge_channel_control_thread_data::control, errno, find_bridge(), bridge_channel_control_thread_data::forward, LOG_WARNING, NULL, options, prepare_bridge_media_channel(), RAII_VAR, stasis_app_control_create(), stasis_app_control_record(), stasis_app_recording_if_exists_parse(), stasis_app_recording_options_create(), STASIS_APP_RECORDING_TERMINATE_INVALID, stasis_app_recording_termination_parse(), stasis_app_recording_to_json(), stasis_forward_all(), and stasis_forward_cancel().

Referenced by ast_ari_bridges_record_cb().

ast_ari_bridges_remove_channel()

void ast_ari_bridges_remove_channel	(	struct ast_variable *	headers,
		struct ast_ari_bridges_remove_channel_args *	args,
		struct ast_ari_response *	response
	)

Remove a channel from a bridge.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 241 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
    RAII_VAR(struct control_list *, list, NULL, ao2_cleanup);
    size_t i;
 
    if (!bridge) {
        /* Response filled in by find_bridge() */
        return;
    }
 
    list = control_list_create(response, args->channel_count, args->channel);
    if (!list) {
        /* Response filled in by control_list_create() */
        return;
    }
 
    /* Make sure all of the channels are in this bridge */
    for (i = 0; i < list->count; ++i) {
        if (stasis_app_get_bridge(list->controls[i]) != bridge) {
            ast_log(LOG_WARNING, "Channel %s not in bridge %s\n",
                args->channel[i], args->bridge_id);
            ast_ari_response_error(response, 422,
                "Unprocessable Entity",
                "Channel not in this bridge");
            return;
        }
    }
 
    /* Now actually remove it */
    for (i = 0; i < list->count; ++i) {
        stasis_app_control_remove_channel_from_bridge(list->controls[i],
            bridge);
    }
 
    ast_ari_response_no_content(response);
}

References ao2_cleanup, args, ast_ari_response_error(), ast_ari_response_no_content(), ast_log, control_list_create(), find_bridge(), LOG_WARNING, NULL, RAII_VAR, stasis_app_control_remove_channel_from_bridge(), and stasis_app_get_bridge().

Referenced by ast_ari_bridges_remove_channel_cb().

ast_ari_bridges_set_video_source()

void ast_ari_bridges_set_video_source	(	struct ast_variable *	headers,
		struct ast_ari_bridges_set_video_source_args *	args,
		struct ast_ari_response *	response
	)

Set a channel as the video source in a multi-party mixing bridge. This operation has no effect on bridges with two or fewer participants.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 1112 of file resource_bridges.c.

{
    struct ast_bridge *bridge;
    struct stasis_app_control *control;
 
    bridge = find_bridge(response, args->bridge_id);
    if (!bridge) {
        return;
    }
 
    control = find_channel_control(response, args->channel_id);
    if (!control) {
        ao2_ref(bridge, -1);
        return;
    }
 
    if (stasis_app_get_bridge(control) != bridge) {
        ast_ari_response_error(response, 422,
            "Unprocessable Entity",
            "Channel not in this bridge");
        ao2_ref(bridge, -1);
        ao2_ref(control, -1);
        return;
    }
 
    stasis_app_send_command(control, bridge_set_video_source_cb,
        ao2_bump(bridge), __ao2_cleanup);
 
    ao2_ref(bridge, -1);
    ao2_ref(control, -1);
 
    ast_ari_response_no_content(response);
}

References __ao2_cleanup(), ao2_bump, ao2_ref, args, ast_ari_response_error(), ast_ari_response_no_content(), stasis_app_control::bridge, bridge_set_video_source_cb(), find_bridge(), find_channel_control(), stasis_app_get_bridge(), and stasis_app_send_command().

Referenced by ast_ari_bridges_set_video_source_cb().

ast_ari_bridges_start_moh()

void ast_ari_bridges_start_moh	(	struct ast_variable *	headers,
		struct ast_ari_bridges_start_moh_args *	args,
		struct ast_ari_response *	response
	)

Play music on hold to a bridge or change the MOH class that is playing.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 899 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
    struct ast_channel *moh_channel;
    const char *moh_class = args->moh_class;
 
    if (!bridge) {
        /* The response is provided by find_bridge() */
        return;
    }
 
    moh_channel = stasis_app_bridge_moh_channel(bridge);
    if (!moh_channel) {
        ast_ari_response_alloc_failed(response);
        return;
    }
 
    ast_moh_start(moh_channel, moh_class, NULL);
    ast_channel_cleanup(moh_channel);
 
    ast_ari_response_no_content(response);
 
}

References ao2_cleanup, args, ast_ari_response_alloc_failed(), ast_ari_response_no_content(), ast_channel_cleanup, ast_moh_start(), ast_channel::bridge, find_bridge(), NULL, RAII_VAR, and stasis_app_bridge_moh_channel().

Referenced by ast_ari_bridges_start_moh_cb().

ast_ari_bridges_stop_moh()

void ast_ari_bridges_stop_moh	(	struct ast_variable *	headers,
		struct ast_ari_bridges_stop_moh_args *	args,
		struct ast_ari_response *	response
	)

Stop playing music on hold to a bridge.

This will only stop music on hold being played via POST bridges/{bridgeId}/moh.

Parameters

	headers	HTTP headers
	args	Swagger parameters
[out]	response	HTTP response

Definition at line 925 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, find_bridge(response, args->bridge_id), ao2_cleanup);
 
    if (!bridge) {
        /* the response is provided by find_bridge() */
        return;
    }
 
    if (stasis_app_bridge_moh_stop(bridge)) {
        ast_ari_response_error(
            response, 409, "Conflict",
            "Bridge isn't playing music");
        return;
    }
 
    ast_ari_response_no_content(response);
}

References ao2_cleanup, args, ast_ari_response_error(), ast_ari_response_no_content(), ast_channel::bridge, find_bridge(), RAII_VAR, and stasis_app_bridge_moh_stop().

Referenced by ast_ari_bridges_stop_moh_cb().

bridge_channel_control_thread()

static void * bridge_channel_control_thread ( void *  data )

static

Definition at line 288 of file resource_bridges.c.

{
    struct bridge_channel_control_thread_data *thread_data = data;
    struct ast_channel *bridge_channel = thread_data->bridge_channel;
    struct stasis_app_control *control = thread_data->control;
    struct stasis_forward *forward = thread_data->forward;
    ast_callid callid = ast_channel_callid(bridge_channel);
    char *bridge_id = thread_data->bridge_id;
 
    if (callid) {
        ast_callid_threadassoc_add(callid);
    }
 
    ast_free(thread_data);
    thread_data = NULL;
 
    stasis_app_control_execute_until_exhausted(bridge_channel, control);
    stasis_app_control_flush_queue(control);
 
    if (bridge_id) {
        stasis_app_bridge_playback_channel_control_remove(bridge_id, control);
        ast_free(bridge_id);
    }
    stasis_forward_cancel(forward);
    ao2_cleanup(control);
    ast_hangup(bridge_channel);
    return NULL;
}

References ao2_cleanup, ast_callid_threadassoc_add(), ast_channel_callid(), ast_free, ast_hangup(), ast_channel::bridge_channel, bridge_channel_control_thread_data::bridge_channel, bridge_channel_control_thread_data::bridge_id, bridge_channel_control_thread_data::control, bridge_channel_control_thread_data::forward, NULL, stasis_app_bridge_playback_channel_control_remove(), stasis_app_control_execute_until_exhausted(), stasis_app_control_flush_queue(), and stasis_forward_cancel().

Referenced by ari_bridges_play_new(), and ast_ari_bridges_record().

bridge_set_video_source_cb()

static int bridge_set_video_source_cb ( struct stasis_app_control *  control, struct ast_channel *  chan, void *  data  )

static

Definition at line 1100 of file resource_bridges.c.

{
    struct ast_bridge *bridge = data;
 
    ast_bridge_lock(bridge);
    ast_bridge_set_single_src_video_mode(bridge, chan);
    ast_bridge_unlock(bridge);
 
    return 0;
}

References ast_bridge_lock, ast_bridge_set_single_src_video_mode(), and ast_bridge_unlock.

Referenced by ast_ari_bridges_set_video_source().

check_add_remove_channel()

static int check_add_remove_channel ( struct ast_ari_response *  response, struct stasis_app_control *  control, enum stasis_app_control_channel_result  result  )

static

Definition at line 175 of file resource_bridges.c.

{
    switch (result) {
    case STASIS_APP_CHANNEL_RECORDING :
        ast_ari_response_error(
            response, 409, "Conflict", "Channel %s currently recording",
            stasis_app_control_get_channel_id(control));
        return -1;
    case STASIS_APP_CHANNEL_OKAY:
        return 0;
    }
    return 0;
}

References ast_ari_response_error(), result, STASIS_APP_CHANNEL_OKAY, STASIS_APP_CHANNEL_RECORDING, and stasis_app_control_get_channel_id().

Referenced by ast_ari_bridges_add_channel().

control_list_create()

static struct control_list * control_list_create ( struct ast_ari_response *  response, size_t  count, const char **  channels  )

static

Definition at line 138 of file resource_bridges.c.

                                                                                                                        {
    RAII_VAR(struct control_list *, list, NULL, ao2_cleanup);
    size_t i;
 
    if (count == 0 || !channels) {
        ast_ari_response_error(response, 400, "Bad Request", "Missing parameter channel");
        return NULL;
    }
 
    list = ao2_alloc(sizeof(*list) + count * sizeof(list->controls[0]), control_list_dtor);
    if (!list) {
        ast_ari_response_alloc_failed(response);
        return NULL;
    }
 
    for (i = 0; i < count; ++i) {
        if (ast_strlen_zero(channels[i])) {
            continue;
        }
        list->controls[list->count] =
            find_channel_control(response, channels[i]);
        if (!list->controls[list->count]) {
            /* response filled in by find_channel_control() */
            return NULL;
        }
        ++list->count;
    }
 
    if (list->count == 0) {
        ast_ari_response_error(response, 400, "Bad Request", "Missing parameter channel");
        return NULL;
    }
 
    ao2_ref(list, +1);
    return list;
}

References ao2_alloc, ao2_cleanup, ao2_ref, ast_ari_response_alloc_failed(), ast_ari_response_error(), ast_strlen_zero(), channels, control_list_dtor(), control_list::count, find_channel_control(), NULL, and RAII_VAR.

Referenced by ast_ari_bridges_add_channel(), and ast_ari_bridges_remove_channel().

control_list_dtor()

static void control_list_dtor ( void *  obj )

static

Definition at line 128 of file resource_bridges.c.

                                         {
    struct control_list *list = obj;
    size_t i;
 
    for (i = 0; i < list->count; ++i) {
        ao2_cleanup(list->controls[i]);
        list->controls[i] = NULL;
    }
}

References ao2_cleanup, control_list::controls, control_list::count, and NULL.

Referenced by control_list_create().

find_bridge()

static struct ast_bridge * find_bridge ( struct ast_ari_response *  response, const char *  bridge_id  )

static

Finds a bridge, filling the response with an error, if appropriate.

Parameters

[out]	response	Response to fill with an error if control is not found.
	bridge_id	ID of the bridge to lookup.

Returns

Bridget.

Return values

NULL	if bridge does not exist.

Definition at line 57 of file resource_bridges.c.

{
    RAII_VAR(struct ast_bridge *, bridge, NULL, ao2_cleanup);
 
    ast_assert(response != NULL);
 
    bridge = stasis_app_bridge_find_by_id(bridge_id);
    if (bridge == NULL) {
        RAII_VAR(struct ast_bridge_snapshot *, snapshot,
            ast_bridge_get_snapshot_by_uniqueid(bridge_id), ao2_cleanup);
        if (!snapshot) {
            ast_ari_response_error(response, 404, "Not found",
                "Bridge not found");
            return NULL;
        }
 
        ast_ari_response_error(response, 409, "Conflict",
            "Bridge not in Stasis application");
        return NULL;
    }
 
    ao2_ref(bridge, +1);
    return bridge;
}

References ao2_cleanup, ao2_ref, ast_ari_response_error(), ast_assert, ast_bridge_get_snapshot_by_uniqueid(), NULL, RAII_VAR, and stasis_app_bridge_find_by_id().

Referenced by ari_bridges_handle_play(), ast_ari_bridges_add_channel(), ast_ari_bridges_clear_video_source(), ast_ari_bridges_destroy(), ast_ari_bridges_record(), ast_ari_bridges_remove_channel(), ast_ari_bridges_set_video_source(), ast_ari_bridges_start_moh(), and ast_ari_bridges_stop_moh().

find_channel_control()

static struct stasis_app_control * find_channel_control ( struct ast_ari_response *  response, const char *  channel_id  )

static

Finds the control object for a channel, filling the response with an error, if appropriate.

Parameters

[out]	response	Response to fill with an error if control is not found.
	channel_id	ID of the channel to lookup.

Returns

Channel control object.

Return values

NULL	if control object does not exist.

Definition at line 92 of file resource_bridges.c.

{
    RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
 
    ast_assert(response != NULL);
 
    control = stasis_app_control_find_by_channel_id(channel_id);
    if (control == NULL) {
        /* Distinguish between 400 and 422 errors */
        RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL,
            ao2_cleanup);
        snapshot = ast_channel_snapshot_get_latest(channel_id);
        if (snapshot == NULL) {
            ast_log(LOG_DEBUG, "Couldn't find '%s'\n", channel_id);
            ast_ari_response_error(response, 400, "Bad Request",
                "Channel not found");
            return NULL;
        }
 
        ast_log(LOG_DEBUG, "Found non-stasis '%s'\n", channel_id);
        ast_ari_response_error(response, 422, "Unprocessable Entity",
            "Channel not in Stasis application");
        return NULL;
    }
 
    ao2_ref(control, +1);
    return control;
}

References ao2_cleanup, ao2_ref, ast_ari_response_error(), ast_assert, ast_channel_snapshot_get_latest(), ast_log, LOG_DEBUG, NULL, RAII_VAR, and stasis_app_control_find_by_channel_id().

Referenced by ast_ari_bridges_set_video_source(), and control_list_create().

prepare_bridge_media_channel()

static struct ast_channel * prepare_bridge_media_channel ( const char *  type, struct ast_format *  channel_format  )

static

Definition at line 317 of file resource_bridges.c.

{
    RAII_VAR(struct ast_format_cap *, cap, NULL, ao2_cleanup);
    struct ast_channel *chan;
 
    cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
    if (!cap) {
        return NULL;
    }
 
    /* This bumps the format's refcount */
    ast_format_cap_append(cap, channel_format, 0);
 
    chan = ast_request(type, cap, NULL, NULL, "ARI", NULL);
    if (!chan) {
        return NULL;
    }
 
    if (stasis_app_channel_unreal_set_internal(chan)) {
        ast_channel_cleanup(chan);
        return NULL;
    }
    return chan;
}

References ao2_cleanup, ast_channel_cleanup, ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, ast_request(), NULL, RAII_VAR, stasis_app_channel_unreal_set_internal(), and type.

Referenced by ari_bridges_play_new(), and ast_ari_bridges_record().