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/*
* Copyright (C) 2016-2019 "IoT.bzh"
* Author Fulup Ar Foll <fulup@iot.bzh>
* Author Romain Forlot <romain@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 <afb/afb-binding.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "harvester-binding.h"
// Config Section definition (note: controls section index should match handle
// retrieval in HalConfigExec)
static CtlSectionT ctrlSections[] = {
{ .key = "plugins", .loadCB = PluginConfig },
{ .key = "onload", .loadCB = OnloadConfig },
{ .key = "controls", .loadCB = ControlConfig },
{ .key = "events", .loadCB = EventConfig },
{ .key = NULL }
};
static void ctrlapi_ping(afb_req_t request)
{
static int count = 0;
count++;
AFB_REQ_NOTICE(request, "Controller:ping count=%d", count);
afb_req_success(request, json_object_new_int(count), NULL);
return;
}
static void ctrlapi_auth(afb_req_t request)
{
afb_req_session_set_LOA(request, 1);
afb_req_success(request, NULL, NULL);
}
static const afb_verb_t CtrlApiVerbs[] = {
/* VERB'S NAME FUNCTION TO CALL SHORT DESCRIPTION */
{ .verb = "ping", .callback = ctrlapi_ping, .info = "ping test for API" },
{ .verb = "auth", .callback = ctrlapi_auth, .info = "Authenticate session to raise Level Of Assurance of the session" },
{ .verb = NULL } /* marker for end of the array */
};
static int CtrlLoadStaticVerbs(afb_dynapi* apiHandle, afb_verb_t* verbs)
{
int errcount = 0;
for (int idx = 0; verbs[idx].verb; idx++) {
errcount += afb_dynapi_add_verb(
apiHandle, CtrlApiVerbs[idx].verb, NULL, CtrlApiVerbs[idx].callback,
(void*)&CtrlApiVerbs[idx], CtrlApiVerbs[idx].auth, 0);
}
return errcount;
};
static int CtrlInitOneApi(afb_api_t apiHandle)
{
int err = 0;
// retrieve section config from api handle
CtlConfigT* ctrlConfig = (CtlConfigT*)afb_dynapi_get_userdata(apiHandle);
err = CtlConfigExec(apiHandle, ctrlConfig);
if (err) {
AFB_API_ERROR(apiHandle, "Error at CtlConfigExec step");
return err;
}
return err;
}
// next generation dynamic API-V3 mode
#include <signal.h>
static int CtrlLoadOneApi(void* cbdata, afb_api_t apiHandle)
{
CtlConfigT* ctrlConfig = (CtlConfigT*)cbdata;
// save closure as api's data context
afb_dynapi_set_userdata(apiHandle, ctrlConfig);
// add static controls verbs
int err = CtrlLoadStaticVerbs(apiHandle, CtrlApiVerbs);
if (err) {
AFB_API_ERROR(apiHandle, "CtrlLoadSection fail to register static V2 verbs");
return ERROR;
}
// load section for corresponding API
err = CtlLoadSections(apiHandle, ctrlConfig, ctrlSections);
// declare an event event manager for this API;
afb_dynapi_on_event(apiHandle, CtrlDispatchApiEvent);
// init API function (does not receive user closure ???
afb_dynapi_on_init(apiHandle, CtrlInitOneApi);
afb_dynapi_seal(apiHandle);
return err;
}
int afbBindingEntry(afb_dynapi* apiHandle)
{
AFB_API_NOTICE(apiHandle, "Controller in afbBinding");
char* dirList;
const char* dir = GetBindingDirPath(apiHandle);
if (!dir)
dirList = CONTROL_CONFIG_PATH;
else {
dirList = calloc(strlen(dir) + strlen("/etc"), sizeof(char));
strcpy(dirList, dir);
strcat(dirList, "/etc");
AFB_API_NOTICE(apiHandle, "Json config directory : %s", dirList);
}
const char* configPath = CtlConfigSearch(apiHandle, dirList, "");
if (!configPath) {
AFB_API_ERROR(apiHandle, "CtlPreInit: No %s* config found in %s ", GetBinderName(), dirList);
return ERROR;
}
// load config file and create API
CtlConfigT* ctrlConfig = CtlLoadMetaData(apiHandle, configPath);
if (!ctrlConfig) {
AFB_API_ERROR(apiHandle,
"CtrlBindingDyn No valid control config file in:\n-- %s",
configPath);
return ERROR;
}
if (!ctrlConfig->api) {
AFB_API_ERROR(apiHandle,
"CtrlBindingDyn API Missing from metadata in:\n-- %s",
configPath);
return ERROR;
}
AFB_API_NOTICE(apiHandle, "Controller API='%s' info='%s'", ctrlConfig->api,
ctrlConfig->info);
// create one API per config file (Pre-V3 return code ToBeChanged)
int status = afb_dynapi_new_api(apiHandle, ctrlConfig->api, ctrlConfig->info, 1, CtrlLoadOneApi, ctrlConfig);
return status;
}
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