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/*
* Copyright (C) 2015, 2016, 2017 "IoT.bzh"
* Author: José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include <errno.h>
#include <stdint.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <json-c/json.h>
#include <systemd/sd-bus.h>
#define AFB_BINDING_VERSION 2
#include <afb/afb-binding.h>
#include "aia-uds-bluez.h"
#if !defined(AUTO_START_ADVISE)
#define AUTO_START_ADVISE 1
#endif
static int advising;
static struct afb_event event;
static int autoadvise = AUTO_START_ADVISE;
/****************************************************************/
static void on_uds_change(const struct aia_uds *uds)
{
struct json_object *object;
AFB_INFO("UDS changed"
" first-name%s[%.*s]"
" last-name%s[%.*s]"
" email%s[%.*s]"
" language%s[%.*s]",
uds->first_name.changed ? "*" : "", (int)uds->first_name.length, uds->first_name.data ?:"",
uds->last_name.changed ? "*" : "", (int)uds->last_name.length, uds->last_name.data ?:"",
uds->email.changed ? "*" : "", (int)uds->email.length, uds->email.data ?:"",
uds->language.changed ? "*" : "", (int)uds->language.length, uds->language.data ?:"");
if (uds->email.changed) {
object = json_object_new_object();
json_object_object_add(object, "incoming", json_object_new_string(uds->email.data));
afb_event_push(event, object);
}
}
static void start (struct afb_req request)
{
int rc;
if (!advising) {
rc = aia_uds_advise(1, NULL, NULL);
if (rc < 0) {
/*
TODO: solve the issue
afb_req_fail(request, "failed", "start scan failed");
return;
*/
AFB_ERROR("Ignoring scan start failed, because probably already in progress");
}
}
advising = advising + 1;
afb_req_subscribe(request, event);
afb_req_success(request, NULL, NULL);
}
static void stop (struct afb_req request)
{
if (advising) {
advising = advising - 1;
if (!advising)
aia_uds_advise(0, NULL, NULL);
}
afb_req_success(request, NULL, NULL);
}
static int init()
{
sd_bus *bus;
int rc;
bus = afb_daemon_get_system_bus();
rc = bus ? aia_uds_init(bus) : -ENOTSUP;
if (rc < 0) {
errno = -rc;
return -1;
}
aia_uds_set_on_change(on_uds_change);
event = afb_daemon_make_event("event");
if (!afb_event_is_valid(event))
return -1;
rc = aia_uds_advise(autoadvise, NULL, NULL);
advising = autoadvise && rc >= 0;
return rc < 0 ? rc : 0;
}
// NOTE: this sample does not use session to keep test a basic as possible
// in real application most APIs should be protected with AFB_SESSION_CHECK
static const struct afb_verb_v2 verbs[]=
{
{"start" , start, NULL, "start User Data Service", AFB_SESSION_NONE },
{"stop" , stop , NULL, "stop User Data Service" , AFB_SESSION_NONE },
{NULL}
};
const struct afb_binding_v2 afbBindingV2 =
{
.api = "uds-ble-init-id",
.specification = NULL,
.info = "AGL Identitity initiator above BLE's User Data Service",
.verbs = verbs,
.preinit = NULL,
.init = init,
.onevent = NULL,
.noconcurrency = 1
};
/* vim: set colorcolumn=80: */
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