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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 <stdio.h>
#include <string.h>
#include <json-c/json.h>
#define AFB_BINDING_VERSION 2
#include <afb/afb-binding.h>
#include "oidc-agent.h"
#include "aia-get.h"
#ifndef NULL
#define NULL 0
#endif
static int expiration_delay = 5;
static const char default_endpoint[] = "https://agl-graphapi.forgerocklabs.org/getuserprofilefromtoken";
static const char *oidc_name;
static char *endpoint;
static void (*onloaded)(struct json_object *data, const char *error);
/***** configuration ********************************************/
static void confsetstr(struct json_object *conf, const char *name, char **value, const char *def)
{
struct json_object *v;
const char *s;
char *p;
s = conf && json_object_object_get_ex(conf, name, &v) ? json_object_get_string(v) : def;
p = *value;
if (s && p != s) {
*value = strdup(s);
free(p);
}
}
static void confsetint(struct json_object *conf, const char *name, int *value, int def)
{
struct json_object *v;
*value = conf && json_object_object_get_ex(conf, name, &v) ? json_object_get_int(v) : def;
}
static void confsetoidc(struct json_object *conf, const char *name)
{
struct json_object *idp, *appli;
if (conf
&& json_object_object_get_ex(conf, "idp", &idp)
&& json_object_object_get_ex(conf, "appli", &appli)) {
if (oidc_idp_set(name, idp) && oidc_appli_set(name, name, appli, 1)) {
oidc_name = name;
}
}
}
/****************************************************************/
static void loaded(struct json_object *data, const char *error)
{
if (onloaded)
onloaded(data, error);
}
static void downloaded(void *closure, int status, const void *buffer, size_t size)
{
struct json_object *object, *subobj;
struct json_object *objkey = closure;
struct json_object *tmp;
json_object_object_get_ex(objkey, "url", &tmp);
const char *url = json_object_get_string(tmp);
/* checks whether discarded */
if (status == 0 && !buffer) {
AFB_ERROR("discarded");
loaded(NULL, "discarded");
goto end; /* discarded */
}
/* scan for the status */
if (status == 0 || !buffer) {
AFB_ERROR("uploading %s failed %s", url ? : "?", (const char*)buffer ? : "");
loaded(NULL, "failed");
goto end;
}
/* get the object */
AFB_DEBUG("received data: %.*s", (int)size, (char*)buffer);
object = json_tokener_parse(buffer); /* okay because 0 appended */
/* extract useful part */
subobj = NULL;
if (object && !json_object_object_get_ex(object, "results", &subobj))
subobj = NULL;
if (subobj)
subobj = json_object_array_get_idx(subobj, 0);
if (subobj && !json_object_object_get_ex(subobj, "data", &subobj))
subobj = NULL;
if (subobj)
subobj = json_object_array_get_idx(subobj, 0);
if (subobj && !json_object_object_get_ex(subobj, "row", &subobj))
subobj = NULL;
if (subobj)
subobj = json_object_array_get_idx(subobj, 0);
/* is it a recognized user ? */
if (!subobj) {
/* not recognized!! */
AFB_INFO("unrecognized key for %s", url ? : "?");
json_object_put(object);
loaded(NULL, "malformed");
goto end;
}
// Save the profile to the database
struct json_object* dbr;
struct json_object* record = json_object_new_object();
json_object_object_add(record, "key", objkey);
json_object_object_add(record, "value", json_object_get(subobj));
afb_service_call_sync("persistence", "update", record, &dbr);
loaded(subobj, NULL);
json_object_put(object);
end:
json_object_put(objkey);
}
/** public **************************************************************/
void agl_forgerock_setconfig(struct json_object *conf)
{
confsetstr(conf, "endpoint", &endpoint, endpoint ? : default_endpoint);
confsetint(conf, "delay", &expiration_delay, expiration_delay);
confsetoidc(conf, "oidc-aia");
AFB_NOTICE("Forgerock endpoint is: %s", endpoint);
}
void agl_forgerock_setcb(void (*callback)(struct json_object *data, const char *error))
{
onloaded = callback;
}
void reply_from_db(void* closure, int status, struct json_object* result)
{
if (status)
{
AFB_WARNING("Failed to retrieve profile from persistence!");
return;
}
struct json_object* tmp;
json_object_object_get_ex(result, "response", &tmp);
json_object_object_get_ex(tmp, "value", &tmp);
AFB_NOTICE("User profile retrieved from persistence: %s", json_object_to_json_string(tmp));
loaded(json_object_get(tmp), NULL);
}
void agl_forgerock_download_request(const char *vin, const char *kind, const char *key)
{
int rc;
char *url;
rc = asprintf(&url, "%s?vin=%s&kind=%s&keytoken=%s", endpoint, vin, kind, key);
if (rc >= 0)
{
struct json_object* obj = json_object_new_object();
json_object_object_add(obj, "url", json_object_new_string(url));
json_object_object_add(obj, "vin", json_object_new_string(vin));
json_object_object_add(obj, "kind", json_object_new_string(kind));
json_object_object_add(obj, "key", json_object_new_string(key));
// Async get from database and from forgerock
struct json_object* key = json_object_new_object();
json_object_object_add(key, "key", json_object_get(obj));
afb_service_call("persistence", "read", key, reply_from_db, NULL);
// Async get from forgerock
aia_get(url, expiration_delay, oidc_name, oidc_name, downloaded, obj);
free(url);
}
else
AFB_ERROR("out of memory");
}
/* vim: set colorcolumn=80: */
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