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- /*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2012 - 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 Implementation for ARI stubs.
- *
- * \author David M. Lee, II <dlee@digium.com>
- */
- /*** MODULEINFO
- <depend type="module">res_stasis_answer</depend>
- <depend type="module">res_stasis_playback</depend>
- <depend type="module">res_stasis_recording</depend>
- <depend type="module">res_stasis_snoop</depend>
- <support_level>core</support_level>
- ***/
- #include "asterisk.h"
- ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
- #include "asterisk/file.h"
- #include "asterisk/pbx.h"
- #include "asterisk/bridge.h"
- #include "asterisk/callerid.h"
- #include "asterisk/stasis_app.h"
- #include "asterisk/stasis_app_playback.h"
- #include "asterisk/stasis_app_recording.h"
- #include "asterisk/stasis_app_snoop.h"
- #include "asterisk/stasis_channels.h"
- #include "asterisk/causes.h"
- #include "asterisk/format_cache.h"
- #include "asterisk/core_local.h"
- #include "asterisk/dial.h"
- #include "resource_channels.h"
- #include <limits.h>
- /*!
- * \brief Finds the control object for a channel, filling the response with an
- * error, if appropriate.
- * \param[out] response Response to fill with an error if control is not found.
- * \param channel_id ID of the channel to lookup.
- * \return Channel control object.
- * \return \c NULL if control object does not exist.
- */
- static struct stasis_app_control *find_control(
- struct ast_ari_response *response,
- const char *channel_id)
- {
- 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 404 and 409 errors */
- RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
- chan = ast_channel_get_by_name(channel_id);
- if (chan == NULL) {
- ast_ari_response_error(response, 404, "Not Found",
- "Channel not found");
- return NULL;
- }
- ast_ari_response_error(response, 409, "Conflict",
- "Channel not in Stasis application");
- return NULL;
- }
- ao2_ref(control, +1);
- return control;
- }
- void ast_ari_channels_continue_in_dialplan(
- struct ast_variable *headers,
- struct ast_ari_channels_continue_in_dialplan_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
- int ipri;
- const char *context;
- const char *exten;
- ast_assert(response != NULL);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- snapshot = stasis_app_control_get_snapshot(control);
- if (!snapshot) {
- return;
- }
- if (ast_strlen_zero(args->context)) {
- context = snapshot->context;
- exten = S_OR(args->extension, snapshot->exten);
- } else {
- context = args->context;
- exten = S_OR(args->extension, "s");
- }
- if (!ast_strlen_zero(args->label)) {
- /* A label was provided in the request, use that */
- if (sscanf(args->label, "%30d", &ipri) != 1) {
- ipri = ast_findlabel_extension(NULL, context, exten, args->label, NULL);
- if (ipri == -1) {
- ast_log(AST_LOG_ERROR, "Requested label: %s can not be found in context: %s\n", args->label, context);
- ast_ari_response_error(response, 404, "Not Found", "Requested label can not be found");
- return;
- }
- } else {
- ast_debug(3, "Numeric value provided for label, jumping to that priority\n");
- }
- if (ipri == 0) {
- ast_log(AST_LOG_ERROR, "Invalid priority label '%s' specified for extension %s in context: %s\n",
- args->label, exten, context);
- ast_ari_response_error(response, 400, "Bad Request", "Requested priority is illegal");
- return;
- }
- } else if (args->priority) {
- /* No label provided, use provided priority */
- ipri = args->priority;
- } else if (ast_strlen_zero(args->context) && ast_strlen_zero(args->extension)) {
- /* Special case. No exten, context, or priority provided, then move on to the next priority */
- ipri = snapshot->priority + 1;
- } else {
- ipri = 1;
- }
- if (stasis_app_control_continue(control, context, exten, ipri)) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_redirect(struct ast_variable *headers,
- struct ast_ari_channels_redirect_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- RAII_VAR(struct ast_channel_snapshot *, chan_snapshot, NULL, ao2_cleanup);
- char *tech;
- char *resource;
- int tech_len;
- control = find_control(response, args->channel_id);
- if (!control) {
- return;
- }
- if (ast_strlen_zero(args->endpoint)) {
- ast_ari_response_error(response, 400, "Not Found",
- "Required parameter 'endpoint' not provided.");
- return;
- }
- tech = ast_strdupa(args->endpoint);
- if (!(resource = strchr(tech, '/')) || !(tech_len = resource - tech)) {
- ast_ari_response_error(response, 422, "Unprocessable Entity",
- "Endpoint parameter '%s' does not contain tech/resource", args->endpoint);
- return;
- }
- *resource++ = '\0';
- if (ast_strlen_zero(resource)) {
- ast_ari_response_error(response, 422, "Unprocessable Entity",
- "No resource provided in endpoint parameter '%s'", args->endpoint);
- return;
- }
- chan_snapshot = ast_channel_snapshot_get_latest(args->channel_id);
- if (!chan_snapshot) {
- ast_ari_response_error(response, 500, "Internal Server Error",
- "Unable to find channel snapshot for '%s'", args->channel_id);
- return;
- }
- if (strncasecmp(chan_snapshot->type, tech, tech_len)) {
- ast_ari_response_error(response, 422, "Unprocessable Entity",
- "Endpoint technology '%s' does not match channel technology '%s'",
- tech, chan_snapshot->type);
- return;
- }
- if (stasis_app_control_redirect(control, resource)) {
- ast_ari_response_error(response, 500, "Internal Server Error",
- "Failed to redirect channel");
- return;
- }
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_answer(struct ast_variable *headers,
- struct ast_ari_channels_answer_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- if (stasis_app_control_answer(control) != 0) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Failed to answer channel");
- return;
- }
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_ring(struct ast_variable *headers,
- struct ast_ari_channels_ring_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- stasis_app_control_ring(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_ring_stop(struct ast_variable *headers,
- struct ast_ari_channels_ring_stop_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- stasis_app_control_ring_stop(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_mute(struct ast_variable *headers,
- struct ast_ari_channels_mute_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- unsigned int direction = 0;
- enum ast_frame_type frametype = AST_FRAME_VOICE;
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- if (ast_strlen_zero(args->direction)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Direction is required");
- return;
- }
- if (!strcmp(args->direction, "in")) {
- direction = AST_MUTE_DIRECTION_READ;
- } else if (!strcmp(args->direction, "out")) {
- direction = AST_MUTE_DIRECTION_WRITE;
- } else if (!strcmp(args->direction, "both")) {
- direction = AST_MUTE_DIRECTION_READ | AST_MUTE_DIRECTION_WRITE;
- } else {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Invalid direction specified");
- return;
- }
- stasis_app_control_mute(control, direction, frametype);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_unmute(struct ast_variable *headers,
- struct ast_ari_channels_unmute_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- unsigned int direction = 0;
- enum ast_frame_type frametype = AST_FRAME_VOICE;
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- if (ast_strlen_zero(args->direction)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Direction is required");
- return;
- }
- if (!strcmp(args->direction, "in")) {
- direction = AST_MUTE_DIRECTION_READ;
- } else if (!strcmp(args->direction, "out")) {
- direction = AST_MUTE_DIRECTION_WRITE;
- } else if (!strcmp(args->direction, "both")) {
- direction = AST_MUTE_DIRECTION_READ | AST_MUTE_DIRECTION_WRITE;
- } else {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Invalid direction specified");
- return;
- }
- stasis_app_control_unmute(control, direction, frametype);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_send_dtmf(struct ast_variable *headers,
- struct ast_ari_channels_send_dtmf_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- return;
- }
- if (ast_strlen_zero(args->dtmf)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "DTMF is required");
- return;
- }
- stasis_app_control_dtmf(control, args->dtmf, args->before, args->between, args->duration, args->after);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_hold(struct ast_variable *headers,
- struct ast_ari_channels_hold_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_hold(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_unhold(struct ast_variable *headers,
- struct ast_ari_channels_unhold_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_unhold(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_start_moh(struct ast_variable *headers,
- struct ast_ari_channels_start_moh_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_moh_start(control, args->moh_class);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_stop_moh(struct ast_variable *headers,
- struct ast_ari_channels_stop_moh_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_moh_stop(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_start_silence(struct ast_variable *headers,
- struct ast_ari_channels_start_silence_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_silence_start(control);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_stop_silence(struct ast_variable *headers,
- struct ast_ari_channels_stop_silence_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- stasis_app_control_silence_stop(control);
- ast_ari_response_no_content(response);
- }
- static void ari_channels_handle_play(
- const char *args_channel_id,
- const char *args_media,
- const char *args_lang,
- int args_offsetms,
- int args_skipms,
- const char *args_playback_id,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
- RAII_VAR(struct stasis_app_playback *, playback, NULL, ao2_cleanup);
- RAII_VAR(char *, playback_url, NULL, ast_free);
- struct ast_json *json;
- const char *language;
- ast_assert(response != NULL);
- control = find_control(response, args_channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- snapshot = stasis_app_control_get_snapshot(control);
- if (!snapshot) {
- ast_ari_response_error(
- response, 404, "Not Found",
- "Channel not found");
- return;
- }
- if (args_skipms < 0) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "skipms cannot be negative");
- return;
- }
- if (args_offsetms < 0) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "offsetms cannot be negative");
- return;
- }
- language = S_OR(args_lang, snapshot->language);
- playback = stasis_app_control_play_uri(control, args_media, language,
- args_channel_id, STASIS_PLAYBACK_TARGET_CHANNEL, args_skipms, args_offsetms, args_playback_id);
- if (!playback) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Failed to queue media for playback");
- return;
- }
- if (ast_asprintf(&playback_url, "/playbacks/%s",
- stasis_app_playback_get_id(playback)) == -1) {
- playback_url = NULL;
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- return;
- }
- json = stasis_app_playback_to_json(playback);
- if (!json) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- return;
- }
- ast_ari_response_created(response, playback_url, json);
- }
- void ast_ari_channels_play(struct ast_variable *headers,
- struct ast_ari_channels_play_args *args,
- struct ast_ari_response *response)
- {
- ari_channels_handle_play(
- args->channel_id,
- args->media,
- args->lang,
- args->offsetms,
- args->skipms,
- args->playback_id,
- response);
- }
- void ast_ari_channels_play_with_id(struct ast_variable *headers,
- struct ast_ari_channels_play_with_id_args *args,
- struct ast_ari_response *response)
- {
- ari_channels_handle_play(
- args->channel_id,
- args->media,
- args->lang,
- args->offsetms,
- args->skipms,
- args->playback_id,
- response);
- }
- void ast_ari_channels_record(struct ast_variable *headers,
- struct ast_ari_channels_record_args *args,
- struct ast_ari_response *response)
- {
- 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);
- struct ast_json *json;
- RAII_VAR(struct stasis_app_recording_options *, options, NULL,
- ao2_cleanup);
- RAII_VAR(char *, uri_encoded_name, NULL, ast_free);
- size_t uri_name_maxlen;
- ast_assert(response != NULL);
- if (args->max_duration_seconds < 0) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "max_duration_seconds cannot be negative");
- return;
- }
- if (args->max_silence_seconds < 0) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "max_silence_seconds cannot be negative");
- return;
- }
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* Response filled in by find_control */
- return;
- }
- options = stasis_app_recording_options_create(args->name, args->format);
- if (options == NULL) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- }
- ast_string_field_build(options, target, "channel:%s", args->channel_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;
- }
- if (!ast_get_format_for_file_ext(options->format)) {
- ast_ari_response_error(
- response, 422, "Unprocessable Entity",
- "specified format is unknown on this system");
- 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_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- 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_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- 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_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- return;
- }
- json = stasis_app_recording_to_json(recording);
- if (!json) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Out of memory");
- return;
- }
- ast_ari_response_created(response, recording_url, json);
- }
- void ast_ari_channels_get(struct ast_variable *headers,
- struct ast_ari_channels_get_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
- struct stasis_cache *cache;
- struct ast_channel_snapshot *snapshot;
- cache = ast_channel_cache();
- if (!cache) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Message bus not initialized");
- return;
- }
- msg = stasis_cache_get(cache, ast_channel_snapshot_type(),
- args->channel_id);
- if (!msg) {
- ast_ari_response_error(
- response, 404, "Not Found",
- "Channel not found");
- return;
- }
- snapshot = stasis_message_data(msg);
- ast_assert(snapshot != NULL);
- ast_ari_response_ok(response,
- ast_channel_snapshot_to_json(snapshot, NULL));
- }
- void ast_ari_channels_hangup(struct ast_variable *headers,
- struct ast_ari_channels_hangup_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
- int cause;
- chan = ast_channel_get_by_name(args->channel_id);
- if (chan == NULL) {
- ast_ari_response_error(
- response, 404, "Not Found",
- "Channel not found");
- return;
- }
- if (ast_strlen_zero(args->reason) || !strcmp(args->reason, "normal")) {
- cause = AST_CAUSE_NORMAL;
- } else if (!strcmp(args->reason, "busy")) {
- cause = AST_CAUSE_BUSY;
- } else if (!strcmp(args->reason, "congestion")) {
- cause = AST_CAUSE_CONGESTION;
- } else if (!strcmp(args->reason, "no_answer")) {
- cause = AST_CAUSE_NOANSWER;
- } else {
- ast_ari_response_error(
- response, 400, "Invalid Reason",
- "Invalid reason for hangup provided");
- return;
- }
- ast_channel_hangupcause_set(chan, cause);
- ast_softhangup(chan, AST_SOFTHANGUP_EXPLICIT);
- ast_ari_response_no_content(response);
- }
- void ast_ari_channels_list(struct ast_variable *headers,
- struct ast_ari_channels_list_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_cache *, cache, NULL, ao2_cleanup);
- RAII_VAR(struct ao2_container *, snapshots, NULL, ao2_cleanup);
- RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
- struct ao2_iterator i;
- void *obj;
- struct stasis_message_sanitizer *sanitize = stasis_app_get_sanitizer();
- cache = ast_channel_cache();
- if (!cache) {
- ast_ari_response_error(
- response, 500, "Internal Server Error",
- "Message bus not initialized");
- return;
- }
- ao2_ref(cache, +1);
- snapshots = stasis_cache_dump(cache, ast_channel_snapshot_type());
- if (!snapshots) {
- 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(snapshots, 0);
- while ((obj = ao2_iterator_next(&i))) {
- RAII_VAR(struct stasis_message *, msg, obj, ao2_cleanup);
- struct ast_channel_snapshot *snapshot = stasis_message_data(msg);
- int r;
- if (sanitize && sanitize->channel_snapshot
- && sanitize->channel_snapshot(snapshot)) {
- continue;
- }
- r = ast_json_array_append(
- json, ast_channel_snapshot_to_json(snapshot, NULL));
- if (r != 0) {
- ast_ari_response_alloc_failed(response);
- ao2_iterator_destroy(&i);
- return;
- }
- }
- ao2_iterator_destroy(&i);
- ast_ari_response_ok(response, ast_json_ref(json));
- }
- /*! \brief Structure used for origination */
- struct ari_origination {
- /*! \brief Dialplan context */
- char context[AST_MAX_CONTEXT];
- /*! \brief Dialplan extension */
- char exten[AST_MAX_EXTENSION];
- /*! \brief Dialplan priority */
- int priority;
- /*! \brief Application data to pass to Stasis application */
- char appdata[0];
- };
- /*! \brief Thread which dials and executes upon answer */
- static void *ari_originate_dial(void *data)
- {
- struct ast_dial *dial = data;
- struct ari_origination *origination = ast_dial_get_user_data(dial);
- enum ast_dial_result res;
- res = ast_dial_run(dial, NULL, 0);
- if (res != AST_DIAL_RESULT_ANSWERED) {
- goto end;
- }
- if (!ast_strlen_zero(origination->appdata)) {
- struct ast_app *app = pbx_findapp("Stasis");
- if (app) {
- ast_verb(4, "Launching Stasis(%s) on %s\n", origination->appdata,
- ast_channel_name(ast_dial_answered(dial)));
- pbx_exec(ast_dial_answered(dial), app, origination->appdata);
- } else {
- ast_log(LOG_WARNING, "No such application 'Stasis'\n");
- }
- } else {
- struct ast_channel *answered = ast_dial_answered(dial);
- if (!ast_strlen_zero(origination->context)) {
- ast_channel_context_set(answered, origination->context);
- }
- if (!ast_strlen_zero(origination->exten)) {
- ast_channel_exten_set(answered, origination->exten);
- }
- if (origination->priority > 0) {
- ast_channel_priority_set(answered, origination->priority);
- }
- if (ast_pbx_run(answered)) {
- ast_log(LOG_ERROR, "Failed to start PBX on %s\n", ast_channel_name(answered));
- } else {
- /* PBX will have taken care of hanging up, so we steal the answered channel so dial doesn't do it */
- ast_dial_answered_steal(dial);
- }
- }
- end:
- ast_dial_destroy(dial);
- ast_free(origination);
- return NULL;
- }
- static void ari_channels_handle_originate_with_id(const char *args_endpoint,
- const char *args_extension,
- const char *args_context,
- long args_priority,
- const char *args_label,
- const char *args_app,
- const char *args_app_args,
- const char *args_caller_id,
- int args_timeout,
- struct ast_variable *variables,
- const char *args_channel_id,
- const char *args_other_channel_id,
- const char *args_originator,
- const char *args_formats,
- struct ast_ari_response *response)
- {
- char *dialtech;
- char dialdevice[AST_CHANNEL_NAME];
- struct ast_dial *dial;
- char *caller_id = NULL;
- char *cid_num = NULL;
- char *cid_name = NULL;
- char *stuff;
- struct ast_channel *other = NULL;
- struct ast_channel *chan = NULL;
- RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
- struct ast_assigned_ids assignedids = {
- .uniqueid = args_channel_id,
- .uniqueid2 = args_other_channel_id,
- };
- struct ari_origination *origination;
- pthread_t thread;
- struct ast_format_cap *format_cap = NULL;
- if ((assignedids.uniqueid && AST_MAX_PUBLIC_UNIQUEID < strlen(assignedids.uniqueid))
- || (assignedids.uniqueid2 && AST_MAX_PUBLIC_UNIQUEID < strlen(assignedids.uniqueid2))) {
- ast_ari_response_error(response, 400, "Bad Request",
- "Uniqueid length exceeds maximum of %d", AST_MAX_PUBLIC_UNIQUEID);
- return;
- }
- if (ast_strlen_zero(args_endpoint)) {
- ast_ari_response_error(response, 400, "Bad Request",
- "Endpoint must be specified");
- return;
- }
- if (!ast_strlen_zero(args_originator) && !ast_strlen_zero(args_formats)) {
- ast_ari_response_error(response, 400, "Bad Request",
- "Originator and formats can't both be specified");
- return;
- }
- dialtech = ast_strdupa(args_endpoint);
- if ((stuff = strchr(dialtech, '/'))) {
- *stuff++ = '\0';
- ast_copy_string(dialdevice, stuff, sizeof(dialdevice));
- }
- if (ast_strlen_zero(dialtech) || ast_strlen_zero(dialdevice)) {
- ast_ari_response_error(response, 400, "Bad Request",
- "Invalid endpoint specified");
- return;
- }
- if (!ast_strlen_zero(args_app)) {
- RAII_VAR(struct ast_str *, appdata, ast_str_create(64), ast_free);
- if (!appdata) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- ast_str_set(&appdata, 0, "%s", args_app);
- if (!ast_strlen_zero(args_app_args)) {
- ast_str_append(&appdata, 0, ",%s", args_app_args);
- }
- origination = ast_calloc(1, sizeof(*origination) + ast_str_size(appdata) + 1);
- if (!origination) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- strcpy(origination->appdata, ast_str_buffer(appdata));
- } else if (!ast_strlen_zero(args_extension)) {
- origination = ast_calloc(1, sizeof(*origination) + 1);
- if (!origination) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- ast_copy_string(origination->context, S_OR(args_context, "default"), sizeof(origination->context));
- ast_copy_string(origination->exten, args_extension, sizeof(origination->exten));
- if (!ast_strlen_zero(args_label)) {
- /* A label was provided in the request, use that */
- int ipri = 1;
- if (sscanf(args_label, "%30d", &ipri) != 1) {
- ipri = ast_findlabel_extension(chan, origination->context, origination->exten, args_label, args_caller_id);
- if (ipri == -1) {
- ast_log(AST_LOG_ERROR, "Requested label: %s can not be found in context: %s\n", args_label, args_context);
- ast_ari_response_error(response, 404, "Not Found", "Requested label can not be found");
- return;
- }
- } else {
- ast_debug(3, "Numeric value provided for label, jumping to that priority\n");
- }
- if (ipri == 0) {
- ast_log(AST_LOG_ERROR, "Invalid priority label '%s' specified for extension %s in context: %s\n",
- args_label, args_extension, args_context);
- ast_ari_response_error(response, 400, "Bad Request", "Requested priority is illegal");
- return;
- }
- /* Our priority was provided by a label */
- origination->priority = ipri;
- } else {
- /* No label provided, use provided priority */
- origination->priority = args_priority ? args_priority : 1;
- }
- origination->appdata[0] = '\0';
- } else {
- ast_ari_response_error(response, 400, "Bad Request",
- "Application or extension must be specified");
- return;
- }
- dial = ast_dial_create();
- if (!dial) {
- ast_ari_response_alloc_failed(response);
- ast_free(origination);
- return;
- }
- ast_dial_set_user_data(dial, origination);
- if (ast_dial_append(dial, dialtech, dialdevice, &assignedids)) {
- ast_ari_response_alloc_failed(response);
- ast_dial_destroy(dial);
- ast_free(origination);
- return;
- }
- if (args_timeout > 0) {
- ast_dial_set_global_timeout(dial, args_timeout * 1000);
- } else if (args_timeout == -1) {
- ast_dial_set_global_timeout(dial, -1);
- } else {
- ast_dial_set_global_timeout(dial, 30000);
- }
- if (!ast_strlen_zero(args_caller_id)) {
- caller_id = ast_strdupa(args_caller_id);
- ast_callerid_parse(caller_id, &cid_name, &cid_num);
- if (ast_is_shrinkable_phonenumber(cid_num)) {
- ast_shrink_phone_number(cid_num);
- }
- }
- if (!ast_strlen_zero(args_originator)) {
- other = ast_channel_get_by_name(args_originator);
- if (!other) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Provided originator channel was not found");
- ast_dial_destroy(dial);
- ast_free(origination);
- return;
- }
- }
- if (!ast_strlen_zero(args_formats)) {
- char *format_name;
- char *formats_copy = ast_strdupa(args_formats);
- if (!(format_cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT))) {
- ast_ari_response_alloc_failed(response);
- ast_dial_destroy(dial);
- ast_free(origination);
- ast_channel_cleanup(other);
- return;
- }
- while ((format_name = ast_strip(strsep(&formats_copy, ",")))) {
- struct ast_format *fmt = ast_format_cache_get(format_name);
- if (!fmt || ast_format_cap_append(format_cap, fmt, 0)) {
- if (!fmt) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Provided format (%s) was not found", format_name);
- } else {
- ast_ari_response_alloc_failed(response);
- }
- ast_dial_destroy(dial);
- ast_free(origination);
- ast_channel_cleanup(other);
- ao2_ref(format_cap, -1);
- ao2_cleanup(fmt);
- return;
- }
- ao2_ref(fmt, -1);
- }
- }
- if (ast_dial_prerun(dial, other, format_cap)) {
- if (ast_channel_errno() == AST_CHANNEL_ERROR_ID_EXISTS) {
- ast_ari_response_error(response, 409, "Conflict",
- "Channel with given unique ID already exists");
- } else {
- ast_ari_response_alloc_failed(response);
- }
- ast_dial_destroy(dial);
- ast_free(origination);
- ast_channel_cleanup(other);
- return;
- }
- ast_channel_cleanup(other);
- ao2_cleanup(format_cap);
- chan = ast_dial_get_channel(dial, 0);
- if (!chan) {
- ast_ari_response_alloc_failed(response);
- ast_dial_destroy(dial);
- ast_free(origination);
- return;
- }
- if (!ast_strlen_zero(cid_num) || !ast_strlen_zero(cid_name)) {
- struct ast_party_connected_line connected;
- /*
- * It seems strange to set the CallerID on an outgoing call leg
- * to whom we are calling, but this function's callers are doing
- * various Originate methods. This call leg goes to the local
- * user. Once the called party answers, the dialplan needs to
- * be able to access the CallerID from the CALLERID function as
- * if the called party had placed this call.
- */
- ast_set_callerid(chan, cid_num, cid_name, cid_num);
- ast_party_connected_line_set_init(&connected, ast_channel_connected(chan));
- if (!ast_strlen_zero(cid_num)) {
- connected.id.number.valid = 1;
- connected.id.number.str = (char *) cid_num;
- connected.id.number.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
- }
- if (!ast_strlen_zero(cid_name)) {
- connected.id.name.valid = 1;
- connected.id.name.str = (char *) cid_name;
- connected.id.name.presentation = AST_PRES_ALLOWED_USER_NUMBER_NOT_SCREENED;
- }
- ast_channel_set_connected_line(chan, &connected, NULL);
- }
- ast_channel_lock(chan);
- if (variables) {
- ast_set_variables(chan, variables);
- }
- ast_set_flag(ast_channel_flags(chan), AST_FLAG_ORIGINATED);
- if (!ast_strlen_zero(args_app)) {
- struct ast_channel *local_peer;
- stasis_app_subscribe_channel(args_app, chan);
- /* Subscribe to the Local channel peer also. */
- local_peer = ast_local_get_peer(chan);
- if (local_peer) {
- stasis_app_subscribe_channel(args_app, local_peer);
- ast_channel_unref(local_peer);
- }
- }
- snapshot = ast_channel_snapshot_get_latest(ast_channel_uniqueid(chan));
- ast_channel_unlock(chan);
- /* Before starting the async dial bump the ref in case the dial quickly goes away and takes
- * the reference with it
- */
- ast_channel_ref(chan);
- if (ast_pthread_create_detached(&thread, NULL, ari_originate_dial, dial)) {
- ast_ari_response_alloc_failed(response);
- ast_dial_destroy(dial);
- ast_free(origination);
- } else {
- ast_ari_response_ok(response, ast_channel_snapshot_to_json(snapshot, NULL));
- }
- ast_channel_unref(chan);
- return;
- }
- /*!
- * \internal
- * \brief Convert a \c ast_json list of key/value pair tuples into a \c ast_variable list
- * \since 13.3.0
- *
- * \param[out] response HTTP response if error
- * \param json_variables The JSON blob containing the variable
- * \param[out] variables An out reference to the variables to populate.
- *
- * \retval 0 on success.
- * \retval -1 on error.
- */
- static int json_to_ast_variables(struct ast_ari_response *response, struct ast_json *json_variables, struct ast_variable **variables)
- {
- enum ast_json_to_ast_vars_code res;
- res = ast_json_to_ast_variables(json_variables, variables);
- switch (res) {
- case AST_JSON_TO_AST_VARS_CODE_SUCCESS:
- return 0;
- case AST_JSON_TO_AST_VARS_CODE_INVALID_TYPE:
- ast_ari_response_error(response, 400, "Bad Request",
- "Only string values in the 'variables' object allowed");
- break;
- case AST_JSON_TO_AST_VARS_CODE_OOM:
- ast_ari_response_alloc_failed(response);
- break;
- }
- ast_log(AST_LOG_ERROR, "Unable to convert 'variables' in JSON body to channel variables\n");
- return -1;
- }
- void ast_ari_channels_originate_with_id(struct ast_variable *headers,
- struct ast_ari_channels_originate_with_id_args *args,
- struct ast_ari_response *response)
- {
- struct ast_variable *variables = NULL;
- /* Parse any query parameters out of the body parameter */
- if (args->variables) {
- struct ast_json *json_variables;
- ast_ari_channels_originate_with_id_parse_body(args->variables, args);
- json_variables = ast_json_object_get(args->variables, "variables");
- if (json_variables
- && json_to_ast_variables(response, json_variables, &variables)) {
- return;
- }
- }
- ari_channels_handle_originate_with_id(
- args->endpoint,
- args->extension,
- args->context,
- args->priority,
- args->label,
- args->app,
- args->app_args,
- args->caller_id,
- args->timeout,
- variables,
- args->channel_id,
- args->other_channel_id,
- args->originator,
- args->formats,
- response);
- ast_variables_destroy(variables);
- }
- void ast_ari_channels_originate(struct ast_variable *headers,
- struct ast_ari_channels_originate_args *args,
- struct ast_ari_response *response)
- {
- struct ast_variable *variables = NULL;
- /* Parse any query parameters out of the body parameter */
- if (args->variables) {
- struct ast_json *json_variables;
- ast_ari_channels_originate_parse_body(args->variables, args);
- json_variables = ast_json_object_get(args->variables, "variables");
- if (json_variables
- && json_to_ast_variables(response, json_variables, &variables)) {
- return;
- }
- }
- ari_channels_handle_originate_with_id(
- args->endpoint,
- args->extension,
- args->context,
- args->priority,
- args->label,
- args->app,
- args->app_args,
- args->caller_id,
- args->timeout,
- variables,
- args->channel_id,
- args->other_channel_id,
- args->originator,
- args->formats,
- response);
- ast_variables_destroy(variables);
- }
- void ast_ari_channels_get_channel_var(struct ast_variable *headers,
- struct ast_ari_channels_get_channel_var_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- RAII_VAR(struct ast_str *, value, ast_str_create(32), ast_free);
- RAII_VAR(struct ast_channel *, channel, NULL, ast_channel_cleanup);
- ast_assert(response != NULL);
- if (!value) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- if (ast_strlen_zero(args->variable)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Variable name is required");
- return;
- }
- if (ast_strlen_zero(args->channel_id)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Channel ID is required");
- return;
- }
- channel = ast_channel_get_by_name(args->channel_id);
- if (!channel) {
- ast_ari_response_error(
- response, 404, "Channel Not Found",
- "Provided channel was not found");
- return;
- }
- /* You may be tempted to lock the channel you're about to read from. You
- * would be wrong. Some dialplan functions put the channel into
- * autoservice, which deadlocks if the channel is already locked.
- * ast_str_retrieve_variable() does its own locking, and the dialplan
- * functions need to as well. We should be fine without the lock.
- */
- if (args->variable[strlen(args->variable) - 1] == ')') {
- if (ast_func_read2(channel, args->variable, &value, 0)) {
- ast_ari_response_error(
- response, 500, "Error With Function",
- "Unable to read provided function");
- return;
- }
- } else {
- if (!ast_str_retrieve_variable(&value, 0, channel, NULL, args->variable)) {
- ast_ari_response_error(
- response, 404, "Variable Not Found",
- "Provided variable was not found");
- return;
- }
- }
- if (!(json = ast_json_pack("{s: s}", "value", S_OR(ast_str_buffer(value), "")))) {
- ast_ari_response_alloc_failed(response);
- return;
- }
- ast_ari_response_ok(response, ast_json_ref(json));
- }
- void ast_ari_channels_set_channel_var(struct ast_variable *headers,
- struct ast_ari_channels_set_channel_var_args *args,
- struct ast_ari_response *response)
- {
- RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
- ast_assert(response != NULL);
- if (ast_strlen_zero(args->variable)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Variable name is required");
- return;
- }
- control = find_control(response, args->channel_id);
- if (control == NULL) {
- /* response filled in by find_control */
- return;
- }
- if (stasis_app_control_set_channel_var(control, args->variable, args->value)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Failed to execute function");
- return;
- }
- ast_ari_response_no_content(response);
- }
- static void ari_channels_handle_snoop_channel(
- const char *args_channel_id,
- const char *args_spy,
- const char *args_whisper,
- const char *args_app,
- const char *args_app_args,
- const char *args_snoop_id,
- struct ast_ari_response *response)
- {
- enum stasis_app_snoop_direction spy, whisper;
- RAII_VAR(struct ast_channel *, chan, NULL, ast_channel_cleanup);
- RAII_VAR(struct ast_channel *, snoop, NULL, ast_channel_cleanup);
- RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
- ast_assert(response != NULL);
- if (ast_strlen_zero(args_spy) || !strcmp(args_spy, "none")) {
- spy = STASIS_SNOOP_DIRECTION_NONE;
- } else if (!strcmp(args_spy, "both")) {
- spy = STASIS_SNOOP_DIRECTION_BOTH;
- } else if (!strcmp(args_spy, "out")) {
- spy = STASIS_SNOOP_DIRECTION_OUT;
- } else if (!strcmp(args_spy, "in")) {
- spy = STASIS_SNOOP_DIRECTION_IN;
- } else {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Invalid direction specified for spy");
- return;
- }
- if (ast_strlen_zero(args_whisper) || !strcmp(args_whisper, "none")) {
- whisper = STASIS_SNOOP_DIRECTION_NONE;
- } else if (!strcmp(args_whisper, "both")) {
- whisper = STASIS_SNOOP_DIRECTION_BOTH;
- } else if (!strcmp(args_whisper, "out")) {
- whisper = STASIS_SNOOP_DIRECTION_OUT;
- } else if (!strcmp(args_whisper, "in")) {
- whisper = STASIS_SNOOP_DIRECTION_IN;
- } else {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Invalid direction specified for whisper");
- return;
- }
- if (spy == STASIS_SNOOP_DIRECTION_NONE && whisper == STASIS_SNOOP_DIRECTION_NONE) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Direction must be specified for at least spy or whisper");
- return;
- } else if (ast_strlen_zero(args_app)) {
- ast_ari_response_error(
- response, 400, "Bad Request",
- "Application name is required");
- return;
- }
- chan = ast_channel_get_by_name(args_channel_id);
- if (chan == NULL) {
- ast_ari_response_error(
- response, 404, "Channel Not Found",
- "Provided channel was not found");
- return;
- }
- snoop = stasis_app_control_snoop(chan, spy, whisper, args_app, args_app_args,
- args_snoop_id);
- if (snoop == NULL) {
- ast_ari_response_error(
- response, 500, "Internal error",
- "Snoop channel could not be created");
- return;
- }
- snapshot = ast_channel_snapshot_get_latest(ast_channel_uniqueid(snoop));
- ast_ari_response_ok(response, ast_channel_snapshot_to_json(snapshot, NULL));
- }
- void ast_ari_channels_snoop_channel(struct ast_variable *headers,
- struct ast_ari_channels_snoop_channel_args *args,
- struct ast_ari_response *response)
- {
- ari_channels_handle_snoop_channel(
- args->channel_id,
- args->spy,
- args->whisper,
- args->app,
- args->app_args,
- args->snoop_id,
- response);
- }
- void ast_ari_channels_snoop_channel_with_id(struct ast_variable *headers,
- struct ast_ari_channels_snoop_channel_with_id_args *args,
- struct ast_ari_response *response)
- {
- ari_channels_handle_snoop_channel(
- args->channel_id,
- args->spy,
- args->whisper,
- args->app,
- args->app_args,
- args->snoop_id,
- response);
- }
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