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616 lines
16 KiB
616 lines
16 KiB
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2012 - 2013, Digium, Inc.
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*
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* David M. Lee, II <dlee@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*! \file
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*
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* \brief Implementation for stasis-http stubs.
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*
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* \author David M. Lee, II <dlee@digium.com>
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*/
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/*** MODULEINFO
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<depend type="module">res_stasis_app_playback</depend>
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/file.h"
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#include "asterisk/pbx.h"
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#include "asterisk/dial.h"
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#include "asterisk/bridging.h"
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#include "asterisk/callerid.h"
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#include "asterisk/stasis_app.h"
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#include "asterisk/stasis_app_playback.h"
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#include "asterisk/stasis_app_recording.h"
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#include "asterisk/stasis_channels.h"
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#include "resource_channels.h"
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#include <limits.h>
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/*!
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* \brief Finds the control object for a channel, filling the response with an
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* error, if appropriate.
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* \param[out] response Response to fill with an error if control is not found.
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* \param channel_id ID of the channel to lookup.
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* \return Channel control object.
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* \return \c NULL if control object does not exist.
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*/
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static struct stasis_app_control *find_control(
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struct stasis_http_response *response,
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const char *channel_id)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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ast_assert(response != NULL);
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control = stasis_app_control_find_by_channel_id(channel_id);
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if (control == NULL) {
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/* Distinguish between 404 and 409 errors */
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RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
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chan = ast_channel_get_by_name(channel_id);
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if (chan == NULL) {
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stasis_http_response_error(response, 404, "Not Found",
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"Channel not found");
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return NULL;
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}
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stasis_http_response_error(response, 409, "Conflict",
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"Channel not in Stasis application");
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return NULL;
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}
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ao2_ref(control, +1);
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return control;
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}
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void stasis_http_dial(struct ast_variable *headers, struct ast_dial_args *args, struct stasis_http_response *response)
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{
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struct stasis_app_control *control;
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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return;
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}
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if (stasis_app_control_dial(control, args->endpoint, args->timeout)) {
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stasis_http_response_alloc_failed(response);
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return;
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}
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stasis_http_response_no_content(response);
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}
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void stasis_http_continue_in_dialplan(
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struct ast_variable *headers,
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struct ast_continue_in_dialplan_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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ast_assert(response != NULL);
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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return;
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}
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if (stasis_app_control_continue(control, args->context, args->extension, args->priority)) {
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stasis_http_response_alloc_failed(response);
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return;
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}
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stasis_http_response_no_content(response);
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}
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void stasis_http_answer_channel(struct ast_variable *headers,
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struct ast_answer_channel_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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return;
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}
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if (stasis_app_control_answer(control) != 0) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Failed to answer channel");
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return;
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}
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stasis_http_response_no_content(response);
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}
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void stasis_http_mute_channel(struct ast_variable *headers, struct ast_mute_channel_args *args, struct stasis_http_response *response)
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{
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ast_log(LOG_ERROR, "TODO: stasis_http_mute_channel\n");
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}
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void stasis_http_unmute_channel(struct ast_variable *headers, struct ast_unmute_channel_args *args, struct stasis_http_response *response)
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{
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ast_log(LOG_ERROR, "TODO: stasis_http_unmute_channel\n");
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}
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void stasis_http_hold_channel(struct ast_variable *headers, struct ast_hold_channel_args *args, struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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/* Response filled in by find_control */
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return;
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}
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stasis_app_control_hold(control);
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stasis_http_response_no_content(response);
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}
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void stasis_http_unhold_channel(struct ast_variable *headers, struct ast_unhold_channel_args *args, struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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/* Response filled in by find_control */
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return;
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}
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stasis_app_control_unhold(control);
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stasis_http_response_no_content(response);
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}
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void stasis_http_play_on_channel(struct ast_variable *headers,
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struct ast_play_on_channel_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
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RAII_VAR(struct stasis_app_playback *, playback, NULL, ao2_cleanup);
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RAII_VAR(char *, playback_url, NULL, ast_free);
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RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
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const char *language;
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ast_assert(response != NULL);
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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/* Response filled in by find_control */
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return;
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}
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snapshot = stasis_app_control_get_snapshot(control);
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if (!snapshot) {
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stasis_http_response_error(
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response, 404, "Not Found",
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"Channel not found");
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return;
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}
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if (args->skipms < 0) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"skipms cannot be negative");
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return;
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}
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if (args->offsetms < 0) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"offsetms cannot be negative");
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return;
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}
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language = S_OR(args->lang, snapshot->language);
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playback = stasis_app_control_play_uri(control, args->media, language,
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args->skipms, args->offsetms);
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if (!playback) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Failed to queue media for playback");
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return;
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}
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ast_asprintf(&playback_url, "/playback/%s",
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stasis_app_playback_get_id(playback));
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if (!playback_url) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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return;
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}
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json = stasis_app_playback_to_json(playback);
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if (!json) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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return;
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}
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stasis_http_response_created(response, playback_url, json);
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}
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void stasis_http_record_channel(struct ast_variable *headers,
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struct ast_record_channel_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
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RAII_VAR(struct ast_channel_snapshot *, snapshot, NULL, ao2_cleanup);
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RAII_VAR(struct stasis_app_recording *, recording, NULL, ao2_cleanup);
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RAII_VAR(char *, recording_url, NULL, ast_free);
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RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
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RAII_VAR(struct stasis_app_recording_options *, options, NULL,
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ao2_cleanup);
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RAII_VAR(char *, uri_encoded_name, NULL, ast_free);
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size_t uri_name_maxlen;
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ast_assert(response != NULL);
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if (args->max_duration_seconds < 0) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"max_duration_seconds cannot be negative");
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return;
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}
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if (args->max_silence_seconds < 0) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"max_silence_seconds cannot be negative");
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return;
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}
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control = find_control(response, args->channel_id);
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if (control == NULL) {
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/* Response filled in by find_control */
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return;
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}
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options = stasis_app_recording_options_create(args->name, args->format);
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if (options == NULL) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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}
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options->max_silence_seconds = args->max_silence_seconds;
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options->max_duration_seconds = args->max_duration_seconds;
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options->terminate_on =
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stasis_app_recording_termination_parse(args->terminate_on);
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options->if_exists =
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stasis_app_recording_if_exists_parse(args->if_exists);
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options->beep = args->beep;
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if (options->terminate_on == STASIS_APP_RECORDING_TERMINATE_INVALID) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"terminateOn invalid");
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return;
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}
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if (options->if_exists == -1) {
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stasis_http_response_error(
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response, 400, "Bad Request",
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"ifExists invalid");
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return;
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}
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recording = stasis_app_control_record(control, options);
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if (recording == NULL) {
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switch(errno) {
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case EINVAL:
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/* While the arguments are invalid, we should have
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* caught them prior to calling record.
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*/
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Error parsing request");
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break;
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case EEXIST:
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stasis_http_response_error(response, 409, "Conflict",
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"Recording '%s' already in progress",
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args->name);
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break;
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case ENOMEM:
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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break;
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case EPERM:
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stasis_http_response_error(
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response, 400, "Bad Request",
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"Recording name invalid");
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break;
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default:
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ast_log(LOG_WARNING,
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"Unrecognized recording error: %s\n",
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strerror(errno));
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Internal Server Error");
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break;
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}
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return;
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}
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uri_name_maxlen = strlen(args->name) * 3;
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uri_encoded_name = ast_malloc(uri_name_maxlen);
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if (!uri_encoded_name) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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return;
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}
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ast_uri_encode(args->name, uri_encoded_name, uri_name_maxlen,
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ast_uri_http);
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ast_asprintf(&recording_url, "/recordings/live/%s", uri_encoded_name);
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if (!recording_url) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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return;
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}
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json = stasis_app_recording_to_json(recording);
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if (!json) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Out of memory");
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return;
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}
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stasis_http_response_created(response, recording_url, json);
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}
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void stasis_http_get_channel(struct ast_variable *headers,
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struct ast_get_channel_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
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struct stasis_caching_topic *caching_topic;
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struct ast_channel_snapshot *snapshot;
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caching_topic = ast_channel_topic_all_cached();
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if (!caching_topic) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Message bus not initialized");
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return;
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}
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msg = stasis_cache_get(caching_topic, ast_channel_snapshot_type(),
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args->channel_id);
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if (!msg) {
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stasis_http_response_error(
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response, 404, "Not Found",
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"Channel not found");
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return;
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}
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snapshot = stasis_message_data(msg);
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ast_assert(snapshot != NULL);
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stasis_http_response_ok(response,
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ast_channel_snapshot_to_json(snapshot));
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}
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void stasis_http_delete_channel(struct ast_variable *headers,
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struct ast_delete_channel_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct ast_channel *, chan, NULL, ao2_cleanup);
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chan = ast_channel_get_by_name(args->channel_id);
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if (chan == NULL) {
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stasis_http_response_error(
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response, 404, "Not Found",
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"Channel not found");
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return;
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}
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ast_softhangup(chan, AST_SOFTHANGUP_EXPLICIT);
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stasis_http_response_no_content(response);
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}
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void stasis_http_get_channels(struct ast_variable *headers,
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struct ast_get_channels_args *args,
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struct stasis_http_response *response)
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{
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RAII_VAR(struct stasis_caching_topic *, caching_topic, NULL, ao2_cleanup);
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RAII_VAR(struct ao2_container *, snapshots, NULL, ao2_cleanup);
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RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
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struct ao2_iterator i;
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void *obj;
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caching_topic = ast_channel_topic_all_cached();
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if (!caching_topic) {
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stasis_http_response_error(
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response, 500, "Internal Server Error",
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"Message bus not initialized");
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return;
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}
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ao2_ref(caching_topic, +1);
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snapshots = stasis_cache_dump(caching_topic, ast_channel_snapshot_type());
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if (!snapshots) {
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stasis_http_response_alloc_failed(response);
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return;
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}
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json = ast_json_array_create();
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if (!json) {
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stasis_http_response_alloc_failed(response);
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return;
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}
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i = ao2_iterator_init(snapshots, 0);
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while ((obj = ao2_iterator_next(&i))) {
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RAII_VAR(struct stasis_message *, msg, obj, ao2_cleanup);
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struct ast_channel_snapshot *snapshot = stasis_message_data(msg);
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int r = ast_json_array_append(
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json, ast_channel_snapshot_to_json(snapshot));
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if (r != 0) {
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stasis_http_response_alloc_failed(response);
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return;
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}
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}
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ao2_iterator_destroy(&i);
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stasis_http_response_ok(response, ast_json_ref(json));
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}
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void stasis_http_originate(struct ast_variable *headers,
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struct ast_originate_args *args,
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struct stasis_http_response *response)
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{
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char *dialtech;
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char dialdevice[AST_CHANNEL_NAME];
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char *caller_id = NULL;
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char *cid_num = NULL;
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char *cid_name = NULL;
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int timeout = 30000;
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char *stuff;
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if (ast_strlen_zero(args->endpoint)) {
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stasis_http_response_error(response, 400, "Bad Request",
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"Endpoint must be specified");
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return;
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}
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dialtech = ast_strdupa(args->endpoint);
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if ((stuff = strchr(dialtech, '/'))) {
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*stuff++ = '\0';
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ast_copy_string(dialdevice, stuff, sizeof(dialdevice));
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}
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if (ast_strlen_zero(dialtech) || ast_strlen_zero(dialdevice)) {
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stasis_http_response_error(response, 400, "Bad Request",
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"Invalid endpoint specified");
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return;
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}
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if (args->timeout > 0) {
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timeout = args->timeout * 1000;
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} else if (args->timeout == -1) {
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timeout = -1;
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}
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if (!ast_strlen_zero(args->caller_id)) {
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caller_id = ast_strdupa(args->caller_id);
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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->app)) {
|
|
const char *app = "Stasis";
|
|
|
|
RAII_VAR(struct ast_str *, appdata, ast_str_create(64), ast_free);
|
|
|
|
if (!appdata) {
|
|
stasis_http_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);
|
|
}
|
|
|
|
/* originate a channel, putting it into an application */
|
|
if (ast_pbx_outgoing_app(dialtech, NULL, dialdevice, timeout, app, ast_str_buffer(appdata), NULL, 0, cid_num, cid_name, NULL, NULL, NULL)) {
|
|
stasis_http_response_alloc_failed(response);
|
|
return;
|
|
}
|
|
} else if (!ast_strlen_zero(args->extension)) {
|
|
/* originate a channel, sending it to an extension */
|
|
if (ast_pbx_outgoing_exten(dialtech, NULL, dialdevice, timeout, S_OR(args->context, "default"), args->extension, args->priority ? args->priority : 1, NULL, 0, cid_num, cid_name, NULL, NULL, NULL, 0)) {
|
|
stasis_http_response_alloc_failed(response);
|
|
return;
|
|
}
|
|
} else {
|
|
stasis_http_response_error(response, 400, "Bad Request",
|
|
"Application or extension must be specified");
|
|
return;
|
|
}
|
|
|
|
stasis_http_response_no_content(response);
|
|
}
|
|
|
|
void stasis_http_get_channel_var(struct ast_variable *headers, struct ast_get_channel_var_args *args, struct stasis_http_response *response)
|
|
{
|
|
RAII_VAR(struct ast_json *, json, NULL, ast_json_unref);
|
|
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
|
|
RAII_VAR(char *, value, NULL, ast_free);
|
|
|
|
ast_assert(response != NULL);
|
|
|
|
control = find_control(response, args->channel_id);
|
|
if (control == NULL) {
|
|
return;
|
|
}
|
|
|
|
value = stasis_app_control_get_channel_var(control, args->variable);
|
|
|
|
if (!(json = ast_json_pack("{s: s}", "value", S_OR(value, "")))) {
|
|
stasis_http_response_alloc_failed(response);
|
|
return;
|
|
}
|
|
|
|
stasis_http_response_ok(response, ast_json_ref(json));
|
|
}
|
|
|
|
void stasis_http_set_channel_var(struct ast_variable *headers, struct ast_set_channel_var_args *args, struct stasis_http_response *response)
|
|
{
|
|
RAII_VAR(struct stasis_app_control *, control, NULL, ao2_cleanup);
|
|
|
|
ast_assert(response != NULL);
|
|
|
|
control = find_control(response, args->channel_id);
|
|
if (control == NULL) {
|
|
return;
|
|
}
|
|
|
|
if (ast_strlen_zero(args->variable)) {
|
|
stasis_http_response_error(
|
|
response, 400, "Bad Request",
|
|
"Variable name is required");
|
|
return;
|
|
}
|
|
|
|
if (stasis_app_control_set_channel_var(control, args->variable, args->value)) {
|
|
stasis_http_response_error(
|
|
response, 400, "Bad Request",
|
|
"Failed to execute function");
|
|
return;
|
|
}
|
|
|
|
stasis_http_response_no_content(response);
|
|
}
|
|
|