+++ /dev/null
-/*
- * Copyright (C) 2015-2018 "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 <string.h>
-#include <pthread.h>
-
-#include <json-c/json.h>
-
-#define AFB_BINDING_VERSION 3
-#include <afb/afb-binding.h>
-
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-
-struct event
-{
- struct event *next;
- afb_event_t event;
- char tag[1];
-};
-
-static struct event *events = 0;
-
-/* searchs the event of tag */
-static struct event *event_get(const char *tag)
-{
- struct event *e = events;
- while(e && strcmp(e->tag, tag))
- e = e->next;
- return e;
-}
-
-/* deletes the event of tag */
-static int event_del(const char *tag)
-{
- struct event *e, **p;
-
- /* check exists */
- e = event_get(tag);
- if (!e) return -1;
-
- /* unlink */
- p = &events;
- while(*p != e) p = &(*p)->next;
- *p = e->next;
-
- /* destroys */
- afb_event_unref(e->event);
- free(e);
- return 0;
-}
-
-/* creates the event of tag */
-static int event_add(const char *tag, const char *name)
-{
- struct event *e;
-
- /* check valid tag */
- e = event_get(tag);
- if (e) return -1;
-
- /* creation */
- e = malloc(strlen(tag) + sizeof *e);
- if (!e) return -1;
- strcpy(e->tag, tag);
-
- /* make the event */
- e->event = afb_daemon_make_event(name);
- if (!e->event) { free(e); return -1; }
-
- /* link */
- e->next = events;
- events = e;
- return 0;
-}
-
-static int event_subscribe(afb_req_t request, const char *tag)
-{
- struct event *e;
- e = event_get(tag);
- return e ? afb_req_subscribe(request, e->event) : -1;
-}
-
-static int event_unsubscribe(afb_req_t request, const char *tag)
-{
- struct event *e;
- e = event_get(tag);
- return e ? afb_req_unsubscribe(request, e->event) : -1;
-}
-
-static int event_push(struct json_object *args, const char *tag)
-{
- struct event *e;
- e = event_get(tag);
- return e ? afb_event_push(e->event, json_object_get(args)) : -1;
-}
-
-static int event_broadcast(struct json_object *args, const char *tag)
-{
- struct event *e;
- e = event_get(tag);
- return e ? afb_event_broadcast(e->event, json_object_get(args)) : -1;
-}
-
-// Sample Generic Ping Debug API
-static void ping(afb_req_t request, json_object *jresp, const char *tag)
-{
- static int pingcount = 0;
- json_object *query = afb_req_json(request);
- afb_req_success_f(request, jresp, "Ping Binder Daemon tag=%s count=%d query=%s", tag, ++pingcount, json_object_to_json_string(query));
-}
-
-static void pingSample (afb_req_t request)
-{
- ping(request, json_object_new_string ("Some String"), "pingSample");
-}
-
-static void pingFail (afb_req_t request)
-{
- afb_req_fail(request, "failed", "Ping Binder Daemon fails");
-}
-
-static void pingNull (afb_req_t request)
-{
- ping(request, NULL, "pingNull");
-}
-
-static void pingBug (afb_req_t request)
-{
- ping(NULL, NULL, "pingBug");
-}
-
-static void pingEvent(afb_req_t request)
-{
- json_object *query = afb_req_json(request);
- afb_daemon_broadcast_event("event", json_object_get(query));
- ping(request, json_object_get(query), "event");
-}
-
-
-// For samples https://linuxprograms.wordpress.com/2010/05/20/json-c-libjson-tutorial/
-static void pingJson (afb_req_t request) {
- json_object *jresp, *embed;
-
- jresp = json_object_new_object();
- json_object_object_add(jresp, "myString", json_object_new_string ("Some String"));
- json_object_object_add(jresp, "myInt", json_object_new_int (1234));
-
- embed = json_object_new_object();
- json_object_object_add(embed, "subObjString", json_object_new_string ("Some String"));
- json_object_object_add(embed, "subObjInt", json_object_new_int (5678));
-
- json_object_object_add(jresp,"eobj", embed);
-
- ping(request, jresp, "pingJson");
-}
-
-static void subcallcb (void *closure, json_object *object, const char *error, const char *info, afb_req_t request)
-{
- afb_req_reply(request, json_object_get(object), error, info);
-}
-
-static void subcall (afb_req_t request)
-{
- const char *api = afb_req_value(request, "api");
- const char *verb = afb_req_value(request, "verb");
- const char *args = afb_req_value(request, "args");
- json_object *object = api && verb && args ? json_tokener_parse(args) : NULL;
-
- if (object == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else
- afb_req_subcall(request, api, verb, object, afb_req_subcall_pass_events, subcallcb, NULL);
-}
-
-static void subcallsync (afb_req_t request)
-{
- int rc;
- const char *api = afb_req_value(request, "api");
- const char *verb = afb_req_value(request, "verb");
- const char *args = afb_req_value(request, "args");
- json_object *result, *object = api && verb && args ? json_tokener_parse(args) : NULL;
-
- if (object == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else {
- rc = afb_req_subcall_sync_legacy(request, api, verb, object, &result);
- if (rc >= 0)
- afb_req_success(request, result, NULL);
- else {
- afb_req_fail(request, "failed", json_object_to_json_string(result));
- json_object_put(result);
- }
- }
-}
-
-static void eventadd (afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
- const char *name = afb_req_value(request, "name");
-
- pthread_mutex_lock(&mutex);
- if (tag == NULL || name == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else if (0 != event_add(tag, name))
- afb_req_fail(request, "failed", "creation error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
-}
-
-static void eventdel (afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
-
- pthread_mutex_lock(&mutex);
- if (tag == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else if (0 != event_del(tag))
- afb_req_fail(request, "failed", "deletion error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
-}
-
-static void eventsub (afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
-
- pthread_mutex_lock(&mutex);
- if (tag == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else if (0 != event_subscribe(request, tag))
- afb_req_fail(request, "failed", "subscription error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
-}
-
-static void eventunsub (afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
-
- pthread_mutex_lock(&mutex);
- if (tag == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else if (0 != event_unsubscribe(request, tag))
- afb_req_fail(request, "failed", "unsubscription error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
-}
-
-static void eventpush (afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
- const char *data = afb_req_value(request, "data");
- json_object *object = data ? json_tokener_parse(data) : NULL;
-
- pthread_mutex_lock(&mutex);
- if (tag == NULL)
- afb_req_fail(request, "failed", "bad arguments");
- else if (0 > event_push(object, tag))
- afb_req_fail(request, "failed", "push error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
- json_object_put(object);
-}
-
-static void callcb (void *prequest, json_object *object, const char *error, const char *info, afb_api_t api)
-{
- afb_req_t request = prequest;
- afb_req_reply(request, json_object_get(object), error, info);
- afb_req_unref(request);
-}
-
-static void call (afb_req_t request)
-{
- const char *api = afb_req_value(request, "api");
- const char *verb = afb_req_value(request, "verb");
- const char *args = afb_req_value(request, "args");
- json_object *object = api && verb && args ? json_tokener_parse(args) : NULL;
-
- afb_service_call(api, verb, object, callcb, afb_req_addref(request));
-}
-
-static void callsync (afb_req_t request)
-{
- const char *api = afb_req_value(request, "api");
- const char *verb = afb_req_value(request, "verb");
- const char *args = afb_req_value(request, "args");
- json_object *object = api && verb && args ? json_tokener_parse(args) : NULL;
- json_object *result;
- char *error, *info;
-
- afb_service_call_sync(api, verb, object, &result, &error, &info);
- afb_req_reply(request, result, error, info);
- free(error);
- free(info);
-}
-
-static void verbose (afb_req_t request)
-{
- int level = 5;
- json_object *query = afb_req_json(request), *l;
-
- if (json_object_is_type(query,json_type_int))
- level = json_object_get_int(query);
- else if (json_object_object_get_ex(query, "level", &l) && json_object_is_type(l, json_type_int))
- level = json_object_get_int(l);
-
- if (!json_object_object_get_ex(query,"message",&l))
- l = query;
-
- AFB_REQ_VERBOSE(request, level, "verbose called for %s", json_object_get_string(l));
- afb_req_success(request, NULL, NULL);
-}
-
-static void exitnow (afb_req_t request)
-{
- int code = 0;
- json_object *query = afb_req_json(request), *l;
-
- if (json_object_is_type(query,json_type_int))
- code = json_object_get_int(query);
- else if (json_object_object_get_ex(query, "code", &l) && json_object_is_type(l, json_type_int))
- code = json_object_get_int(l);
-
- if (!json_object_object_get_ex(query,"reason",&l))
- l = NULL;
-
- AFB_REQ_NOTICE(request, "in phase of exiting with code %d, reason: %s", code, l ? json_object_get_string(l) : "unknown");
- afb_req_success(request, NULL, NULL);
- exit(code);
-}
-
-static void broadcast(afb_req_t request)
-{
- const char *tag = afb_req_value(request, "tag");
- const char *name = afb_req_value(request, "name");
- const char *data = afb_req_value(request, "data");
- json_object *object = data ? json_tokener_parse(data) : NULL;
-
- if (tag != NULL) {
- pthread_mutex_lock(&mutex);
- if (0 > event_broadcast(object, tag))
- afb_req_fail(request, "failed", "broadcast error");
- else
- afb_req_success(request, NULL, NULL);
- pthread_mutex_unlock(&mutex);
- } else if (name != NULL) {
- if (0 > afb_daemon_broadcast_event(name, object))
- afb_req_fail(request, "failed", "broadcast error");
- else
- afb_req_success(request, NULL, NULL);
- } else {
- afb_req_fail(request, "failed", "bad arguments");
- }
- json_object_put(object);
-}
-
-static void hasperm (afb_req_t request)
-{
- const char *perm = afb_req_value(request, "perm");
- if (afb_req_has_permission(request, perm))
- afb_req_success_f(request, NULL, "permission %s granted", perm?:"(null)");
- else
- afb_req_fail_f(request, "not-granted", "permission %s NOT granted", perm?:"(null)");
-}
-
-static void appid (afb_req_t request)
-{
- char *aid = afb_req_get_application_id(request);
- afb_req_success_f(request, aid ? json_object_new_string(aid) : NULL, "application is %s", aid?:"?");
- free(aid);
-}
-
-static void uid (afb_req_t request)
-{
- int uid = afb_req_get_uid(request);
- afb_req_success_f(request, json_object_new_int(uid), "uid is %d", uid);
-}
-
-static int preinit(afb_api_t api)
-{
- AFB_API_NOTICE(api, "hello binding comes to live");
- return 0;
-}
-
-static int init(afb_api_t api)
-{
- AFB_API_NOTICE(api, "hello binding starting");
- return 0;
-}
-
-static void onevent(afb_api_t api, const char *event, struct json_object *object)
-{
- AFB_API_NOTICE(api, "received event %s(%s)", event, json_object_to_json_string(object));
-}
-
-// 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_v3 verbs[]= {
- { .verb="ping", .callback=pingSample },
- { .verb="pingfail", .callback=pingFail },
- { .verb="pingnull", .callback=pingNull },
- { .verb="pingbug", .callback=pingBug },
- { .verb="pingJson", .callback=pingJson },
- { .verb="pingevent", .callback=pingEvent },
- { .verb="subcall", .callback=subcall },
- { .verb="subcallsync", .callback=subcallsync },
- { .verb="eventadd", .callback=eventadd },
- { .verb="eventdel", .callback=eventdel },
- { .verb="eventsub", .callback=eventsub },
- { .verb="eventunsub", .callback=eventunsub },
- { .verb="eventpush", .callback=eventpush },
- { .verb="call", .callback=call },
- { .verb="callsync", .callback=callsync },
- { .verb="verbose", .callback=verbose },
- { .verb="broadcast", .callback=broadcast },
- { .verb="hasperm", .callback=hasperm },
- { .verb="appid", .callback=appid },
- { .verb="uid", .callback=uid },
- { .verb="exit", .callback=exitnow },
- { .verb=NULL}
-};
-
-const struct afb_binding_v3 afbBindingV3 = {
- .api = "hello",
- .specification = NULL,
- .verbs = verbs,
- .preinit = preinit,
- .init = init,
- .onevent = onevent
-};
-
Code Review / src / app-framework-binder.git / blobdiff