asterisk/res/ari/resource_sounds.c

236 lines
6.5 KiB
C

/*
* 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 /api-docs/sounds.{format} implementation- Sound resources
*
* \author David M. Lee, II <dlee@digium.com>
*/
#include "asterisk.h"
#include "resource_sounds.h"
#include "asterisk/media_index.h"
#include "asterisk/sounds_index.h"
#include "asterisk/format.h"
#include "asterisk/format_cap.h"
#include "asterisk/json.h"
/*! \brief arguments that are necessary for adding format/lang pairs */
struct lang_format_info {
struct ast_json *format_list; /*!< The embedded array to which format/lang pairs should be added */
const char *filename; /*!< Name of the file for which to add format/lang pairs */
const char *format_filter; /*!< Format filter provided in the request */
};
/*! \brief Add format/lang pairs to the array embedded in the sound object */
static int add_format_information_cb(void *obj, void *arg, void *data, int flags)
{
char *language = obj;
struct lang_format_info *args = arg;
int idx;
RAII_VAR(struct ast_format_cap *, cap, NULL, ao2_cleanup);
struct ast_media_index *sounds_index = data;
if (!sounds_index) {
return CMP_STOP;
}
cap = ast_media_get_format_cap(sounds_index, args->filename, language);
if (!cap) {
return CMP_STOP;
}
for (idx = 0; idx < ast_format_cap_count(cap); idx++) {
struct ast_format *format = ast_format_cap_get_format(cap, idx);
struct ast_json *lang_format_pair;
if (!ast_strlen_zero(args->format_filter)
&& strcmp(args->format_filter, ast_format_get_name(format))) {
ao2_ref(format, -1);
continue;
}
lang_format_pair = ast_json_pack("{s: s, s: s}",
"language", language,
"format", ast_format_get_name(format));
if (!lang_format_pair) {
ao2_ref(format, -1);
return CMP_STOP;
}
ast_json_array_append(args->format_list, lang_format_pair);
ao2_ref(format, -1);
}
return 0;
}
/*! \brief Filter out all languages not matching the specified language */
static int filter_langs_cb(void *obj, void *arg, int flags)
{
char *lang_filter = arg;
char *lang = obj;
if (strcmp(lang, lang_filter)) {
return CMP_MATCH;
}
return 0;
}
/*! \brief Generate a Sound structure as documented in sounds.json for the specified filename */
static struct ast_json *create_sound_blob(const char *filename,
struct ast_ari_sounds_list_args *args, struct ast_media_index *sounds_index)
{
RAII_VAR(struct ast_json *, sound, NULL, ast_json_unref);
RAII_VAR(struct ao2_container *, languages, NULL, ao2_cleanup);
const char *description;
struct ast_json *format_lang_list;
struct lang_format_info info;
if (!sounds_index) {
return NULL;
}
description = ast_media_get_description(sounds_index, filename, "en");
if (ast_strlen_zero(description)) {
sound = ast_json_pack("{s: s, s: []}",
"id", filename,
"formats");
} else {
sound = ast_json_pack("{s: s, s: s, s: []}",
"id", filename,
"text", description,
"formats");
}
if (!sound) {
return NULL;
}
format_lang_list = ast_json_object_get(sound, "formats");
if (!format_lang_list) {
return NULL;
}
languages = ast_media_get_variants(sounds_index, filename);
if (!languages || !ao2_container_count(languages)) {
return NULL;
}
/* filter requested languages */
if (args && !ast_strlen_zero(args->lang)) {
char *lang_filter = ast_strdupa(args->lang);
ao2_callback(languages, OBJ_NODATA | OBJ_MULTIPLE | OBJ_UNLINK, filter_langs_cb, lang_filter);
if (!languages || !ao2_container_count(languages)) {
return NULL;
}
}
info.filename = filename;
info.format_list = format_lang_list;
info.format_filter = NULL;
if (args) {
info.format_filter = args->format;
}
ao2_callback_data(languages, OBJ_NODATA, add_format_information_cb, &info, sounds_index);
/* no format/lang pairs for this sound so nothing to return */
if (!ast_json_array_size(format_lang_list)) {
return NULL;
}
return ast_json_ref(sound);
}
struct sounds_cb_data {
struct ast_ari_sounds_list_args *args;
struct ast_media_index *index;
};
/*! \brief Generate a Sound structure and append it to the output blob */
static int append_sound_cb(void *obj, void *arg, void *data, int flags)
{
struct ast_json *sounds_array = arg;
char *filename = obj;
struct sounds_cb_data *cb_data = data;
struct ast_json *sound_blob = create_sound_blob(filename, cb_data->args, cb_data->index);
if (!sound_blob) {
return 0;
}
ast_json_array_append(sounds_array, sound_blob);
return 0;
}
void ast_ari_sounds_list(struct ast_variable *headers,
struct ast_ari_sounds_list_args *args,
struct ast_ari_response *response)
{
RAII_VAR(struct ao2_container *, sound_files, NULL, ao2_cleanup);
struct ast_json *sounds_blob;
RAII_VAR(struct ast_media_index *, sounds_index, ast_sounds_get_index(), ao2_cleanup);
struct sounds_cb_data cb_data = {
.args = args,
.index = sounds_index,
};
if (!sounds_index) {
ast_ari_response_error(response, 500, "Internal Error", "Sounds index not available");
return;
}
sound_files = ast_media_get_media(sounds_index);
if (!sound_files) {
ast_ari_response_error(response, 500, "Internal Error", "Allocation Error");
return;
}
sounds_blob = ast_json_array_create();
if (!sounds_blob) {
ast_ari_response_error(response, 500, "Internal Error", "Allocation Error");
return;
}
ao2_callback_data(sound_files, OBJ_NODATA, append_sound_cb, sounds_blob, &cb_data);
if (!ast_json_array_size(sounds_blob)) {
ast_ari_response_error(response, 404, "Not Found", "No sounds found that matched the query");
ast_json_unref(sounds_blob);
return;
}
ast_ari_response_ok(response, sounds_blob);
}
void ast_ari_sounds_get(struct ast_variable *headers,
struct ast_ari_sounds_get_args *args,
struct ast_ari_response *response)
{
struct ast_json *sound_blob;
struct ast_media_index *sounds_index = ast_sounds_get_index_for_file(args->sound_id);
sound_blob = create_sound_blob(args->sound_id, NULL, sounds_index);
ao2_cleanup(sounds_index);
if (!sound_blob) {
ast_ari_response_error(response, 404, "Not Found", "Sound not found");
return;
}
ast_ari_response_ok(response, sound_blob);
}