2 * Copyright (C) 2017-2019 "IoT.bzh"
3 * Author José Bollo <jose.bollo@iot.bzh>
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
26 #include <json-c/json.h>
27 #if !defined(JSON_C_TO_STRING_NOSLASHESCAPE)
28 #define JSON_C_TO_STRING_NOSLASHESCAPE 0
31 #include <afb/afb-binding-v1.h>
32 #include <afb/afb-binding-v2.h>
33 #include <afb/afb-binding-v3.h>
34 #include <afb/afb-req-x2.h>
37 #include "afb-apiset.h"
39 #include "afb-calls.h"
40 #include "afb-context.h"
44 #include "afb-msg-json.h"
50 /******************************************************************************/
52 static void xreq_finalize(struct afb_xreq *xreq)
55 afb_xreq_reply(xreq, NULL, "error", "no reply");
58 afb_hook_xreq_end(xreq);
61 afb_xreq_unhooked_unref(xreq->caller);
62 xreq->queryitf->unref(xreq);
65 inline void afb_xreq_unhooked_addref(struct afb_xreq *xreq)
67 __atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED);
70 inline void afb_xreq_unhooked_unref(struct afb_xreq *xreq)
72 if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED))
76 /******************************************************************************/
78 struct json_object *afb_xreq_unhooked_json(struct afb_xreq *xreq)
80 if (!xreq->json && xreq->queryitf->json)
81 xreq->json = xreq->queryitf->json(xreq);
85 static struct json_object *xreq_json_cb(struct afb_req_x2 *closure)
87 struct afb_xreq *xreq = xreq_from_req_x2(closure);
88 return afb_xreq_unhooked_json(xreq);
91 static struct afb_arg xreq_get_cb(struct afb_req_x2 *closure, const char *name)
93 struct afb_xreq *xreq = xreq_from_req_x2(closure);
95 struct json_object *object, *value;
97 if (xreq->queryitf->get)
98 arg = xreq->queryitf->get(xreq, name);
100 object = xreq_json_cb(closure);
101 if (json_object_object_get_ex(object, name, &value)) {
103 arg.value = json_object_get_string(value);
113 static void xreq_reply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *info)
115 struct afb_xreq *xreq = xreq_from_req_x2(closure);
118 ERROR("reply called more than one time!!");
119 json_object_put(obj);
122 xreq->queryitf->reply(xreq, obj, error, info);
126 static void xreq_vreply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *fmt, va_list args)
129 if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
131 xreq_reply_cb(closure, obj, error, info);
135 static void xreq_legacy_success_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *info)
137 xreq_reply_cb(closure, obj, NULL, info);
140 static void xreq_legacy_fail_cb(struct afb_req_x2 *closure, const char *status, const char *info)
142 xreq_reply_cb(closure, NULL, status, info);
145 static void xreq_legacy_vsuccess_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *fmt, va_list args)
147 xreq_vreply_cb(closure, obj, NULL, fmt, args);
150 static void xreq_legacy_vfail_cb(struct afb_req_x2 *closure, const char *status, const char *fmt, va_list args)
152 xreq_vreply_cb(closure, NULL, status, fmt, args);
155 static void *xreq_legacy_context_get_cb(struct afb_req_x2 *closure)
157 struct afb_xreq *xreq = xreq_from_req_x2(closure);
158 return afb_context_get(&xreq->context);
161 static void xreq_legacy_context_set_cb(struct afb_req_x2 *closure, void *value, void (*free_value)(void*))
163 struct afb_xreq *xreq = xreq_from_req_x2(closure);
164 afb_context_set(&xreq->context, value, free_value);
167 static struct afb_req_x2 *xreq_addref_cb(struct afb_req_x2 *closure)
169 struct afb_xreq *xreq = xreq_from_req_x2(closure);
170 afb_xreq_unhooked_addref(xreq);
174 static void xreq_unref_cb(struct afb_req_x2 *closure)
176 struct afb_xreq *xreq = xreq_from_req_x2(closure);
177 afb_xreq_unhooked_unref(xreq);
180 static void xreq_session_close_cb(struct afb_req_x2 *closure)
182 struct afb_xreq *xreq = xreq_from_req_x2(closure);
183 afb_context_close(&xreq->context);
186 static int xreq_session_set_LOA_cb(struct afb_req_x2 *closure, unsigned level)
188 struct afb_xreq *xreq = xreq_from_req_x2(closure);
189 return afb_context_change_loa(&xreq->context, level);
192 static int xreq_subscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
194 struct afb_xreq *xreq = xreq_from_req_x2(closure);
195 return afb_xreq_subscribe(xreq, event);
198 static int xreq_legacy_subscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
200 return xreq_subscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
203 int afb_xreq_subscribe(struct afb_xreq *xreq, struct afb_event_x2 *event)
206 ERROR("request replied, subscription impossible");
210 return afb_evt_event_x2_add_watch(xreq->listener, event);
211 if (xreq->queryitf->subscribe)
212 return xreq->queryitf->subscribe(xreq, event);
213 ERROR("no event listener, subscription impossible");
219 static int xreq_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
221 struct afb_xreq *xreq = xreq_from_req_x2(closure);
222 return afb_xreq_unsubscribe(xreq, event);
225 static int xreq_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
227 return xreq_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
230 int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event_x2 *event)
233 ERROR("request replied, unsubscription impossible");
237 return afb_evt_event_x2_remove_watch(xreq->listener, event);
238 if (xreq->queryitf->unsubscribe)
239 return xreq->queryitf->unsubscribe(xreq, event);
240 ERROR("no event listener, unsubscription impossible");
246 static void xreq_legacy_subcall_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure)
248 struct afb_xreq *xreq = xreq_from_req_x2(req);
249 return afb_calls_legacy_subcall_v1(xreq, api, verb, args, callback, closure);
252 static void xreq_legacy_subcall_req_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x1), void *closure)
254 struct afb_xreq *xreq = xreq_from_req_x2(req);
255 return afb_calls_legacy_subcall_v2(xreq, api, verb, args, callback, closure);
258 static void xreq_legacy_subcall_request_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x2*), void *closure)
260 struct afb_xreq *xreq = xreq_from_req_x2(req);
261 return afb_calls_legacy_subcall_v3(xreq, api, verb, args, callback, closure);
265 static int xreq_legacy_subcallsync_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, struct json_object **result)
267 struct afb_xreq *xreq = xreq_from_req_x2(req);
268 return afb_calls_legacy_subcall_sync(xreq, api, verb, args, result);
271 static void xreq_vverbose_cb(struct afb_req_x2 *closure, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
274 struct afb_xreq *xreq = xreq_from_req_x2(closure);
276 if (!fmt || vasprintf(&p, fmt, args) < 0)
277 vverbose(level, file, line, func, fmt, args);
279 verbose(level, file, line, func, "[REQ/API %s] %s", xreq->request.called_api, p);
284 static struct afb_stored_req *xreq_legacy_store_cb(struct afb_req_x2 *closure)
286 xreq_addref_cb(closure);
287 return (struct afb_stored_req*)closure;
290 static int xreq_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
292 struct afb_xreq *xreq = xreq_from_req_x2(closure);
293 return afb_auth_has_permission(xreq, permission);
296 static char *xreq_get_application_id_cb(struct afb_req_x2 *closure)
298 struct afb_xreq *xreq = xreq_from_req_x2(closure);
299 return xreq->cred && xreq->cred->id ? strdup(xreq->cred->id) : NULL;
302 static void *xreq_context_make_cb(struct afb_req_x2 *closure, int replace, void *(*create_value)(void*), void (*free_value)(void*), void *create_closure)
304 struct afb_xreq *xreq = xreq_from_req_x2(closure);
305 return afb_context_make(&xreq->context, replace, create_value, free_value, create_closure);
308 static int xreq_get_uid_cb(struct afb_req_x2 *closure)
310 struct afb_xreq *xreq = xreq_from_req_x2(closure);
311 return xreq->cred && xreq->cred->id ? (int)xreq->cred->uid : -1;
314 static struct json_object *xreq_get_client_info_cb(struct afb_req_x2 *closure)
316 struct afb_xreq *xreq = xreq_from_req_x2(closure);
317 struct json_object *r = json_object_new_object();
318 if (xreq->cred && xreq->cred->id) {
319 json_object_object_add(r, "uid", json_object_new_int(xreq->cred->uid));
320 json_object_object_add(r, "gid", json_object_new_int(xreq->cred->gid));
321 json_object_object_add(r, "pid", json_object_new_int(xreq->cred->pid));
322 json_object_object_add(r, "user", json_object_new_string(xreq->cred->user));
323 json_object_object_add(r, "label", json_object_new_string(xreq->cred->label));
324 json_object_object_add(r, "id", json_object_new_string(xreq->cred->id));
326 if (xreq->context.session) {
327 json_object_object_add(r, "uuid", json_object_new_string(afb_context_uuid(&xreq->context)));
328 json_object_object_add(r, "LOA", json_object_new_int(afb_context_get_loa(&xreq->context)));
333 static void xreq_subcall_cb(
334 struct afb_req_x2 *req,
337 struct json_object *args,
339 void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
342 struct afb_xreq *xreq = xreq_from_req_x2(req);
343 afb_calls_subcall(xreq, api, verb, args, flags, callback, closure);
346 static int xreq_subcallsync_cb(
347 struct afb_req_x2 *req,
350 struct json_object *args,
352 struct json_object **object,
356 struct afb_xreq *xreq = xreq_from_req_x2(req);
357 return afb_calls_subcall_sync(xreq, api, verb, args, flags, object, error, info);
360 /******************************************************************************/
362 const struct afb_req_x2_itf xreq_itf = {
363 .json = xreq_json_cb,
365 .legacy_success = xreq_legacy_success_cb,
366 .legacy_fail = xreq_legacy_fail_cb,
367 .legacy_vsuccess = xreq_legacy_vsuccess_cb,
368 .legacy_vfail = xreq_legacy_vfail_cb,
369 .legacy_context_get = xreq_legacy_context_get_cb,
370 .legacy_context_set = xreq_legacy_context_set_cb,
371 .addref = xreq_addref_cb,
372 .unref = xreq_unref_cb,
373 .session_close = xreq_session_close_cb,
374 .session_set_LOA = xreq_session_set_LOA_cb,
375 .legacy_subscribe_event_x1 = xreq_legacy_subscribe_event_x1_cb,
376 .legacy_unsubscribe_event_x1 = xreq_legacy_unsubscribe_event_x1_cb,
377 .legacy_subcall = xreq_legacy_subcall_cb,
378 .legacy_subcallsync = xreq_legacy_subcallsync_cb,
379 .vverbose = xreq_vverbose_cb,
380 .legacy_store_req = xreq_legacy_store_cb,
381 .legacy_subcall_req = xreq_legacy_subcall_req_cb,
382 .has_permission = xreq_has_permission_cb,
383 .get_application_id = xreq_get_application_id_cb,
384 .context_make = xreq_context_make_cb,
385 .subscribe_event_x2 = xreq_subscribe_event_x2_cb,
386 .unsubscribe_event_x2 = xreq_unsubscribe_event_x2_cb,
387 .legacy_subcall_request = xreq_legacy_subcall_request_cb,
388 .get_uid = xreq_get_uid_cb,
389 .reply = xreq_reply_cb,
390 .vreply = xreq_vreply_cb,
391 .get_client_info = xreq_get_client_info_cb,
392 .subcall = xreq_subcall_cb,
393 .subcallsync = xreq_subcallsync_cb,
395 /******************************************************************************/
398 static struct json_object *xreq_hooked_json_cb(struct afb_req_x2 *closure)
400 struct json_object *r = xreq_json_cb(closure);
401 struct afb_xreq *xreq = xreq_from_req_x2(closure);
402 return afb_hook_xreq_json(xreq, r);
405 static struct afb_arg xreq_hooked_get_cb(struct afb_req_x2 *closure, const char *name)
407 struct afb_arg r = xreq_get_cb(closure, name);
408 struct afb_xreq *xreq = xreq_from_req_x2(closure);
409 return afb_hook_xreq_get(xreq, name, r);
412 static void xreq_hooked_reply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *info)
414 struct afb_xreq *xreq = xreq_from_req_x2(closure);
415 afb_hook_xreq_reply(xreq, obj, error, info);
416 xreq_reply_cb(closure, obj, error, info);
419 static void xreq_hooked_vreply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *fmt, va_list args)
422 if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
424 xreq_hooked_reply_cb(closure, obj, error, info);
428 static void xreq_hooked_legacy_success_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *info)
430 xreq_hooked_reply_cb(closure, obj, NULL, info);
433 static void xreq_hooked_legacy_fail_cb(struct afb_req_x2 *closure, const char *status, const char *info)
435 xreq_hooked_reply_cb(closure, NULL, status, info);
438 static void xreq_hooked_legacy_vsuccess_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *fmt, va_list args)
440 xreq_hooked_vreply_cb(closure, obj, NULL, fmt, args);
443 static void xreq_hooked_legacy_vfail_cb(struct afb_req_x2 *closure, const char *status, const char *fmt, va_list args)
445 xreq_hooked_vreply_cb(closure, NULL, status, fmt, args);
448 static void *xreq_hooked_legacy_context_get_cb(struct afb_req_x2 *closure)
450 void *r = xreq_legacy_context_get_cb(closure);
451 struct afb_xreq *xreq = xreq_from_req_x2(closure);
452 return afb_hook_xreq_legacy_context_get(xreq, r);
455 static void xreq_hooked_legacy_context_set_cb(struct afb_req_x2 *closure, void *value, void (*free_value)(void*))
457 struct afb_xreq *xreq = xreq_from_req_x2(closure);
458 afb_hook_xreq_legacy_context_set(xreq, value, free_value);
459 xreq_legacy_context_set_cb(closure, value, free_value);
462 static struct afb_req_x2 *xreq_hooked_addref_cb(struct afb_req_x2 *closure)
464 struct afb_xreq *xreq = xreq_from_req_x2(closure);
465 afb_hook_xreq_addref(xreq);
466 return xreq_addref_cb(closure);
469 static void xreq_hooked_unref_cb(struct afb_req_x2 *closure)
471 struct afb_xreq *xreq = xreq_from_req_x2(closure);
472 afb_hook_xreq_unref(xreq);
473 xreq_unref_cb(closure);
476 static void xreq_hooked_session_close_cb(struct afb_req_x2 *closure)
478 struct afb_xreq *xreq = xreq_from_req_x2(closure);
479 afb_hook_xreq_session_close(xreq);
480 xreq_session_close_cb(closure);
483 static int xreq_hooked_session_set_LOA_cb(struct afb_req_x2 *closure, unsigned level)
485 int r = xreq_session_set_LOA_cb(closure, level);
486 struct afb_xreq *xreq = xreq_from_req_x2(closure);
487 return afb_hook_xreq_session_set_LOA(xreq, level, r);
490 static int xreq_hooked_subscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
492 int r = xreq_subscribe_event_x2_cb(closure, event);
493 struct afb_xreq *xreq = xreq_from_req_x2(closure);
494 return afb_hook_xreq_subscribe(xreq, event, r);
497 static int xreq_hooked_legacy_subscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
499 return xreq_hooked_subscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
502 static int xreq_hooked_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
504 int r = xreq_unsubscribe_event_x2_cb(closure, event);
505 struct afb_xreq *xreq = xreq_from_req_x2(closure);
506 return afb_hook_xreq_unsubscribe(xreq, event, r);
509 static int xreq_hooked_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
511 return xreq_hooked_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
514 static void xreq_hooked_legacy_subcall_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *closure)
516 struct afb_xreq *xreq = xreq_from_req_x2(req);
517 afb_calls_legacy_hooked_subcall_v1(xreq, api, verb, args, callback, closure);
520 static void xreq_hooked_legacy_subcall_req_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x1), void *closure)
522 struct afb_xreq *xreq = xreq_from_req_x2(req);
523 afb_calls_legacy_hooked_subcall_v2(xreq, api, verb, args, callback, closure);
526 static void xreq_hooked_legacy_subcall_request_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x2 *), void *closure)
528 struct afb_xreq *xreq = xreq_from_req_x2(req);
529 afb_calls_legacy_hooked_subcall_v3(xreq, api, verb, args, callback, closure);
532 static int xreq_hooked_legacy_subcallsync_cb(struct afb_req_x2 *req, const char *api, const char *verb, struct json_object *args, struct json_object **result)
534 struct afb_xreq *xreq = xreq_from_req_x2(req);
535 return afb_calls_legacy_hooked_subcall_sync(xreq, api, verb, args, result);
538 static void xreq_hooked_vverbose_cb(struct afb_req_x2 *closure, int level, const char *file, int line, const char *func, const char *fmt, va_list args)
540 struct afb_xreq *xreq = xreq_from_req_x2(closure);
543 xreq_vverbose_cb(closure, level, file, line, func, fmt, args);
544 afb_hook_xreq_vverbose(xreq, level, file, line, func, fmt, ap);
548 static struct afb_stored_req *xreq_hooked_legacy_store_cb(struct afb_req_x2 *closure)
550 struct afb_xreq *xreq = xreq_from_req_x2(closure);
551 struct afb_stored_req *r = xreq_legacy_store_cb(closure);
552 afb_hook_xreq_legacy_store(xreq, r);
556 static int xreq_hooked_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
558 struct afb_xreq *xreq = xreq_from_req_x2(closure);
559 int r = xreq_has_permission_cb(closure, permission);
560 return afb_hook_xreq_has_permission(xreq, permission, r);
563 static char *xreq_hooked_get_application_id_cb(struct afb_req_x2 *closure)
565 struct afb_xreq *xreq = xreq_from_req_x2(closure);
566 char *r = xreq_get_application_id_cb(closure);
567 return afb_hook_xreq_get_application_id(xreq, r);
570 static void *xreq_hooked_context_make_cb(struct afb_req_x2 *closure, int replace, void *(*create_value)(void*), void (*free_value)(void*), void *create_closure)
572 struct afb_xreq *xreq = xreq_from_req_x2(closure);
573 void *result = xreq_context_make_cb(closure, replace, create_value, free_value, create_closure);
574 return afb_hook_xreq_context_make(xreq, replace, create_value, free_value, create_closure, result);
577 static int xreq_hooked_get_uid_cb(struct afb_req_x2 *closure)
579 struct afb_xreq *xreq = xreq_from_req_x2(closure);
580 int r = xreq_get_uid_cb(closure);
581 return afb_hook_xreq_get_uid(xreq, r);
584 static struct json_object *xreq_hooked_get_client_info_cb(struct afb_req_x2 *closure)
586 struct afb_xreq *xreq = xreq_from_req_x2(closure);
587 struct json_object *r = xreq_get_client_info_cb(closure);
588 return afb_hook_xreq_get_client_info(xreq, r);
591 static void xreq_hooked_subcall_cb(
592 struct afb_req_x2 *req,
595 struct json_object *args,
597 void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
600 struct afb_xreq *xreq = xreq_from_req_x2(req);
601 afb_calls_hooked_subcall(xreq, api, verb, args, flags, callback, closure);
604 static int xreq_hooked_subcallsync_cb(
605 struct afb_req_x2 *req,
608 struct json_object *args,
610 struct json_object **object,
614 struct afb_xreq *xreq = xreq_from_req_x2(req);
615 return afb_calls_hooked_subcall_sync(xreq, api, verb, args, flags, object, error, info);
618 /******************************************************************************/
620 const struct afb_req_x2_itf xreq_hooked_itf = {
621 .json = xreq_hooked_json_cb,
622 .get = xreq_hooked_get_cb,
623 .legacy_success = xreq_hooked_legacy_success_cb,
624 .legacy_fail = xreq_hooked_legacy_fail_cb,
625 .legacy_vsuccess = xreq_hooked_legacy_vsuccess_cb,
626 .legacy_vfail = xreq_hooked_legacy_vfail_cb,
627 .legacy_context_get = xreq_hooked_legacy_context_get_cb,
628 .legacy_context_set = xreq_hooked_legacy_context_set_cb,
629 .addref = xreq_hooked_addref_cb,
630 .unref = xreq_hooked_unref_cb,
631 .session_close = xreq_hooked_session_close_cb,
632 .session_set_LOA = xreq_hooked_session_set_LOA_cb,
633 .legacy_subscribe_event_x1 = xreq_hooked_legacy_subscribe_event_x1_cb,
634 .legacy_unsubscribe_event_x1 = xreq_hooked_legacy_unsubscribe_event_x1_cb,
635 .legacy_subcall = xreq_hooked_legacy_subcall_cb,
636 .legacy_subcallsync = xreq_hooked_legacy_subcallsync_cb,
637 .vverbose = xreq_hooked_vverbose_cb,
638 .legacy_store_req = xreq_hooked_legacy_store_cb,
639 .legacy_subcall_req = xreq_hooked_legacy_subcall_req_cb,
640 .has_permission = xreq_hooked_has_permission_cb,
641 .get_application_id = xreq_hooked_get_application_id_cb,
642 .context_make = xreq_hooked_context_make_cb,
643 .subscribe_event_x2 = xreq_hooked_subscribe_event_x2_cb,
644 .unsubscribe_event_x2 = xreq_hooked_unsubscribe_event_x2_cb,
645 .legacy_subcall_request = xreq_hooked_legacy_subcall_request_cb,
646 .get_uid = xreq_hooked_get_uid_cb,
647 .reply = xreq_hooked_reply_cb,
648 .vreply = xreq_hooked_vreply_cb,
649 .get_client_info = xreq_hooked_get_client_info_cb,
650 .subcall = xreq_hooked_subcall_cb,
651 .subcallsync = xreq_hooked_subcallsync_cb,
655 /******************************************************************************/
657 struct afb_req_x1 afb_xreq_unstore(struct afb_stored_req *sreq)
659 struct afb_xreq *xreq = (struct afb_xreq *)sreq;
662 afb_hook_xreq_legacy_unstore(xreq);
664 return xreq_to_req_x1(xreq);
667 struct json_object *afb_xreq_json(struct afb_xreq *xreq)
669 return afb_req_x2_json(xreq_to_req_x2(xreq));
672 void afb_xreq_reply(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info)
674 afb_req_x2_reply(xreq_to_req_x2(xreq), obj, error, info);
677 void afb_xreq_reply_f(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info, ...)
681 va_start(args, info);
682 afb_req_x2_reply_v(xreq_to_req_x2(xreq), obj, error, info, args);
686 const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
688 struct json_object *obj = xreq_json_cb(xreq_to_req_x2(xreq));
689 const char *result = json_object_to_json_string_ext(obj, JSON_C_TO_STRING_NOSLASHESCAPE);
691 *size = strlen(result);
695 void afb_xreq_unhooked_legacy_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x2 *), void *cb_closure)
697 xreq_legacy_subcall_request_cb(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
700 void afb_xreq_unhooked_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, int flags, void (*callback)(void*, struct json_object*, const char*, const char*, struct afb_req_x2 *), void *closure)
702 xreq_subcall_cb(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
705 int afb_xreq_unhooked_legacy_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
707 return xreq_legacy_subcallsync_cb(xreq_to_req_x2(xreq), api, verb, args, result);
710 void afb_xreq_addref(struct afb_xreq *xreq)
712 afb_req_x2_addref(xreq_to_req_x2(xreq));
715 void afb_xreq_unref(struct afb_xreq *xreq)
717 afb_req_x2_unref(xreq_to_req_x2(xreq));
720 void afb_xreq_legacy_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*, struct afb_req_x2 *), void *cb_closure)
722 afb_req_x2_subcall_legacy(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
725 void afb_xreq_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, int flags, void (*callback)(void*, struct json_object*, const char*, const char*, struct afb_req_x2 *), void *closure)
727 afb_req_x2_subcall(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
730 int afb_xreq_legacy_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
732 return afb_req_x2_subcall_sync_legacy(xreq_to_req_x2(xreq), api, verb, args, result);
735 #if WITH_LEGACY_BINDING_V1
736 static int xreq_session_check_apply_v1(struct afb_xreq *xreq, int sessionflags)
740 if ((sessionflags & (AFB_SESSION_CLOSE_X1|AFB_SESSION_RENEW_X1|AFB_SESSION_CHECK_X1|AFB_SESSION_LOA_EQ_X1)) != 0) {
741 if (!afb_context_check(&xreq->context)) {
742 afb_context_close(&xreq->context);
743 afb_xreq_reply_f(xreq, NULL, "denied", "invalid token's identity");
749 if ((sessionflags & AFB_SESSION_LOA_GE_X1) != 0) {
750 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_X1) & AFB_SESSION_LOA_MASK_X1;
751 if (!afb_context_check_loa(&xreq->context, loa)) {
752 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
758 if ((sessionflags & AFB_SESSION_LOA_LE_X1) != 0) {
759 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_X1) & AFB_SESSION_LOA_MASK_X1;
760 if (afb_context_check_loa(&xreq->context, loa + 1)) {
761 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
767 if ((sessionflags & AFB_SESSION_RENEW_X1) != 0) {
768 afb_context_refresh(&xreq->context);
770 if ((sessionflags & AFB_SESSION_CLOSE_X1) != 0) {
771 afb_context_change_loa(&xreq->context, 0);
772 afb_context_close(&xreq->context);
779 static int xreq_session_check_apply_v2(struct afb_xreq *xreq, uint32_t sessionflags, const struct afb_auth *auth)
783 if (sessionflags != 0) {
784 if (!afb_context_check(&xreq->context)) {
785 afb_context_close(&xreq->context);
786 afb_xreq_reply_f(xreq, NULL, "denied", "invalid token's identity");
792 loa = (int)(sessionflags & AFB_SESSION_LOA_MASK_X2);
793 if (loa && !afb_context_check_loa(&xreq->context, loa)) {
794 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
799 if (auth && !afb_auth_check(xreq, auth)) {
800 afb_xreq_reply_f(xreq, NULL, "denied", "authorisation refused");
805 if ((sessionflags & AFB_SESSION_REFRESH_X2) != 0) {
806 afb_context_refresh(&xreq->context);
808 if ((sessionflags & AFB_SESSION_CLOSE_X2) != 0) {
809 afb_context_close(&xreq->context);
815 #if WITH_LEGACY_BINDING_V1
816 void afb_xreq_call_verb_v1(struct afb_xreq *xreq, const struct afb_verb_desc_v1 *verb)
819 afb_xreq_reply_unknown_verb(xreq);
821 if (!xreq_session_check_apply_v1(xreq, verb->session))
822 verb->callback(xreq_to_req_x1(xreq));
826 #if WITH_LEGACY_BINDING_V2
827 void afb_xreq_call_verb_v2(struct afb_xreq *xreq, const struct afb_verb_v2 *verb)
830 afb_xreq_reply_unknown_verb(xreq);
832 if (!xreq_session_check_apply_v2(xreq, verb->session, verb->auth))
833 verb->callback(xreq_to_req_x1(xreq));
837 void afb_xreq_call_verb_v3(struct afb_xreq *xreq, const struct afb_verb_v3 *verb)
840 afb_xreq_reply_unknown_verb(xreq);
842 if (xreq_session_check_apply_v2(xreq, verb->session, verb->auth) >= 0)
843 verb->callback(xreq_to_req_x2(xreq));
846 void afb_xreq_init(struct afb_xreq *xreq, const struct afb_xreq_query_itf *queryitf)
848 memset(xreq, 0, sizeof *xreq);
849 xreq->request.itf = &xreq_itf; /* no hook by default */
851 xreq->queryitf = queryitf;
854 void afb_xreq_reply_unknown_api(struct afb_xreq *xreq)
856 afb_xreq_reply_f(xreq, NULL, "unknown-api", "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
859 void afb_xreq_reply_unknown_verb(struct afb_xreq *xreq)
861 afb_xreq_reply_f(xreq, NULL, "unknown-verb", "verb %s unknown within api %s", xreq->request.called_verb, xreq->request.called_api);
865 static void init_hooking(struct afb_xreq *xreq)
867 afb_hook_init_xreq(xreq);
868 if (xreq->hookflags) {
869 xreq->request.itf = &xreq_hooked_itf; /* unhook the interface */
870 afb_hook_xreq_begin(xreq);
876 * job callback for asynchronous and secured processing of the request.
878 static void process_async(int signum, void *arg)
880 struct afb_xreq *xreq = arg;
881 const struct afb_api_item *api;
884 /* emit the error (assumes that hooking is initialised) */
885 afb_xreq_reply_f(xreq, NULL, "aborted", "signal %s(%d) caught", strsignal(signum), signum);
891 /* invoke api call method to process the request */
892 api = (const struct afb_api_item*)xreq->context.api_key;
893 api->itf->call(api->closure, xreq);
895 /* release the request */
896 afb_xreq_unhooked_unref(xreq);
900 * Early request failure of the request 'xreq' with, as usual, 'status' and 'info'
901 * The early failure occurs only in function 'afb_xreq_process' where normally,
902 * the hooking is not initialised. So this "early" failure takes care to initialise
903 * the hooking in first.
905 static void early_failure(struct afb_xreq *xreq, const char *status, const char *info, ...)
915 va_start(args, info);
916 afb_req_x2_reply_v(xreq_to_req_x2(xreq), NULL, status, info, args);
921 * Enqueue a job for processing the request 'xreq' using the given 'apiset'.
922 * Errors are reported as request failures.
924 void afb_xreq_process(struct afb_xreq *xreq, struct afb_apiset *apiset)
926 const struct afb_api_item *api;
927 struct afb_xreq *caller;
929 /* lookup at the api */
930 xreq->apiset = apiset;
931 api = afb_apiset_lookup_started(apiset, xreq->request.called_api, 1);
934 early_failure(xreq, "unknown-api", "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
936 early_failure(xreq, "bad-api-state", "api %s not started correctly: %m", xreq->request.called_api);
939 xreq->context.api_key = api;
941 /* check self locking */
943 caller = xreq->caller;
945 if (((const struct afb_api_item*)caller->context.api_key)->group == api->group) {
946 /* noconcurrency lock detected */
947 ERROR("self-lock detected in call stack for API %s", xreq->request.called_api);
948 early_failure(xreq, "self-locked", "recursive self lock, API %s", xreq->request.called_api);
951 caller = caller->caller;
955 /* queue the request job */
956 afb_xreq_unhooked_addref(xreq);
957 if (jobs_queue(api->group, afb_apiset_timeout_get(apiset), process_async, xreq) < 0) {
958 /* TODO: allows or not to proccess it directly as when no threading? (see above) */
959 ERROR("can't process job with threads: %m");
960 early_failure(xreq, "cancelled", "not able to create a job for the task");
961 afb_xreq_unhooked_unref(xreq);
964 afb_xreq_unhooked_unref(xreq);
967 const char *xreq_on_behalf_cred_export(struct afb_xreq *xreq)
969 return xreq->caller ? afb_cred_export(xreq->cred) : NULL;