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/*
* Copyright (C) 2015-2020 "IoT.bzh"
* Author "Fulup Ar Foll"
*
* 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 <stdio.h>
#include <json-c/json.h>
#define AFB_BINDING_VERSION 3
#include <afb/afb-binding.h>
// Dummy sample of Client Application Context
typedef struct {
int something;
void *whateveryouwant;
} MyClientApplicationHandle;
// This function is call when Client Session Context is removed
// Note: when freeCtxCB==NULL standard free/malloc is called
static void clientContextFree(void *context) {
fprintf (stderr,"Plugin[token] Closing Session\n");
free (context);
}
// Request Creation of new context if it does not exist
static void clientContextConnect (afb_req_t request)
{
json_object *jresp;
// add an application specific client context to session
afb_req_context_set(request, malloc (sizeof (MyClientApplicationHandle)), clientContextFree);
// do something intelligent to check if we should or not update level of assurance from 0(anonymous) to 1(logged)
afb_req_session_set_LOA(request, 1);
// Send response to UI
jresp = json_object_new_object();
json_object_object_add(jresp, "token", json_object_new_string ("A New Token and Session Context Was Created"));
afb_req_success(request, jresp, NULL);
}
// Before entering here token will be check and renew
static void clientContextRefresh (afb_req_t request) {
json_object *jresp;
jresp = json_object_new_object();
json_object_object_add(jresp, "token", json_object_new_string ("Token was refreshed"));
afb_req_success(request, jresp, NULL);
}
// Session token will we verified before entering here
static void clientContextCheck (afb_req_t request) {
json_object *jresp = json_object_new_object();
json_object_object_add(jresp, "isvalid", json_object_new_boolean (1));
afb_req_success(request, jresp, NULL);
}
// Close and Free context
static void clientContextLogout (afb_req_t request) {
json_object *jresp;
/* after this call token will be reset
* - no further access to API will be possible
* - every context from any used plugin will be freed
*/
jresp = json_object_new_object();
json_object_object_add(jresp, "info", json_object_new_string ("Token and all resources are released"));
// WARNING: if you free context resource manually here do not forget to set *request.context=NULL;
afb_req_success(request, jresp, NULL);
afb_req_session_set_LOA(request, 0);
}
// Close and Free context
static void clientGetPing (afb_req_t request) {
static int count=0;
json_object *jresp;
jresp = json_object_new_object();
json_object_object_add(jresp, "count", json_object_new_int (count ++));
afb_req_success(request, jresp, NULL);
}
static const struct afb_verb_v3 verbs[]= {
{.verb="ping" , .session=AFB_SESSION_NONE , .callback=clientGetPing ,.info="Ping Rest Test Service"},
{.verb="connect" , .session=AFB_SESSION_LOA_0 | AFB_SESSION_RENEW, .callback=clientContextConnect,.info="Connect/Login Client"},
{.verb="refresh" , .session=AFB_SESSION_LOA_1 | AFB_SESSION_RENEW, .callback=clientContextRefresh,.info="Refresh Client Authentication Token"},
{.verb="check" , .session=AFB_SESSION_LOA_1 , .callback=clientContextCheck ,.info="Check Client Authentication Token"},
{.verb="logout" , .session=AFB_SESSION_LOA_1 | AFB_SESSION_CLOSE, .callback=clientContextLogout ,.info="Logout Client and Free resources"},
{0, 0, 0, 0, 0, 0, 0}
};
const struct afb_binding_v3 afbBindingV3 =
{
.api = "auth", /* the API name (or binding name or prefix) */
.info = "Application Framework Binder Authentication sample", /* short description of of the binding */
.verbs = verbs /* the array describing the verbs of the API */
};
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