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 return afb_evt_event_x2_add_watch(xreq->listener, event);
207 if (xreq->queryitf->subscribe)
208 return xreq->queryitf->subscribe(xreq, event);
209 ERROR("no event listener, subscription impossible");
214 static int xreq_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
216 struct afb_xreq *xreq = xreq_from_req_x2(closure);
217 return afb_xreq_unsubscribe(xreq, event);
220 static int xreq_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
222 return xreq_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
225 int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event_x2 *event)
228 return afb_evt_event_x2_remove_watch(xreq->listener, event);
229 if (xreq->queryitf->unsubscribe)
230 return xreq->queryitf->unsubscribe(xreq, event);
231 ERROR("no event listener, unsubscription impossible");
236 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)
238 struct afb_xreq *xreq = xreq_from_req_x2(req);
239 return afb_calls_legacy_subcall_v1(xreq, api, verb, args, callback, closure);
242 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)
244 struct afb_xreq *xreq = xreq_from_req_x2(req);
245 return afb_calls_legacy_subcall_v2(xreq, api, verb, args, callback, closure);
248 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)
250 struct afb_xreq *xreq = xreq_from_req_x2(req);
251 return afb_calls_legacy_subcall_v3(xreq, api, verb, args, callback, closure);
255 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)
257 struct afb_xreq *xreq = xreq_from_req_x2(req);
258 return afb_calls_legacy_subcall_sync(xreq, api, verb, args, result);
261 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)
264 struct afb_xreq *xreq = xreq_from_req_x2(closure);
266 if (!fmt || vasprintf(&p, fmt, args) < 0)
267 vverbose(level, file, line, func, fmt, args);
269 verbose(level, file, line, func, "[REQ/API %s] %s", xreq->request.called_api, p);
274 static struct afb_stored_req *xreq_legacy_store_cb(struct afb_req_x2 *closure)
276 xreq_addref_cb(closure);
277 return (struct afb_stored_req*)closure;
280 static int xreq_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
282 struct afb_xreq *xreq = xreq_from_req_x2(closure);
283 return afb_auth_has_permission(xreq, permission);
286 static char *xreq_get_application_id_cb(struct afb_req_x2 *closure)
288 struct afb_xreq *xreq = xreq_from_req_x2(closure);
289 return xreq->cred && xreq->cred->id ? strdup(xreq->cred->id) : NULL;
292 static void *xreq_context_make_cb(struct afb_req_x2 *closure, int replace, void *(*create_value)(void*), void (*free_value)(void*), void *create_closure)
294 struct afb_xreq *xreq = xreq_from_req_x2(closure);
295 return afb_context_make(&xreq->context, replace, create_value, free_value, create_closure);
298 static int xreq_get_uid_cb(struct afb_req_x2 *closure)
300 struct afb_xreq *xreq = xreq_from_req_x2(closure);
301 return xreq->cred && xreq->cred->id ? (int)xreq->cred->uid : -1;
304 static struct json_object *xreq_get_client_info_cb(struct afb_req_x2 *closure)
306 struct afb_xreq *xreq = xreq_from_req_x2(closure);
307 struct json_object *r = json_object_new_object();
308 if (xreq->cred && xreq->cred->id) {
309 json_object_object_add(r, "uid", json_object_new_int(xreq->cred->uid));
310 json_object_object_add(r, "gid", json_object_new_int(xreq->cred->gid));
311 json_object_object_add(r, "pid", json_object_new_int(xreq->cred->pid));
312 json_object_object_add(r, "user", json_object_new_string(xreq->cred->user));
313 json_object_object_add(r, "label", json_object_new_string(xreq->cred->label));
314 json_object_object_add(r, "id", json_object_new_string(xreq->cred->id));
316 if (xreq->context.session) {
317 json_object_object_add(r, "uuid", json_object_new_string(afb_context_uuid(&xreq->context)));
318 json_object_object_add(r, "LOA", json_object_new_int(afb_context_get_loa(&xreq->context)));
323 static void xreq_subcall_cb(
324 struct afb_req_x2 *req,
327 struct json_object *args,
329 void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
332 struct afb_xreq *xreq = xreq_from_req_x2(req);
333 afb_calls_subcall(xreq, api, verb, args, flags, callback, closure);
336 static int xreq_subcallsync_cb(
337 struct afb_req_x2 *req,
340 struct json_object *args,
342 struct json_object **object,
346 struct afb_xreq *xreq = xreq_from_req_x2(req);
347 return afb_calls_subcall_sync(xreq, api, verb, args, flags, object, error, info);
350 /******************************************************************************/
352 const struct afb_req_x2_itf xreq_itf = {
353 .json = xreq_json_cb,
355 .legacy_success = xreq_legacy_success_cb,
356 .legacy_fail = xreq_legacy_fail_cb,
357 .legacy_vsuccess = xreq_legacy_vsuccess_cb,
358 .legacy_vfail = xreq_legacy_vfail_cb,
359 .legacy_context_get = xreq_legacy_context_get_cb,
360 .legacy_context_set = xreq_legacy_context_set_cb,
361 .addref = xreq_addref_cb,
362 .unref = xreq_unref_cb,
363 .session_close = xreq_session_close_cb,
364 .session_set_LOA = xreq_session_set_LOA_cb,
365 .legacy_subscribe_event_x1 = xreq_legacy_subscribe_event_x1_cb,
366 .legacy_unsubscribe_event_x1 = xreq_legacy_unsubscribe_event_x1_cb,
367 .legacy_subcall = xreq_legacy_subcall_cb,
368 .legacy_subcallsync = xreq_legacy_subcallsync_cb,
369 .vverbose = xreq_vverbose_cb,
370 .legacy_store_req = xreq_legacy_store_cb,
371 .legacy_subcall_req = xreq_legacy_subcall_req_cb,
372 .has_permission = xreq_has_permission_cb,
373 .get_application_id = xreq_get_application_id_cb,
374 .context_make = xreq_context_make_cb,
375 .subscribe_event_x2 = xreq_subscribe_event_x2_cb,
376 .unsubscribe_event_x2 = xreq_unsubscribe_event_x2_cb,
377 .legacy_subcall_request = xreq_legacy_subcall_request_cb,
378 .get_uid = xreq_get_uid_cb,
379 .reply = xreq_reply_cb,
380 .vreply = xreq_vreply_cb,
381 .get_client_info = xreq_get_client_info_cb,
382 .subcall = xreq_subcall_cb,
383 .subcallsync = xreq_subcallsync_cb,
385 /******************************************************************************/
388 static struct json_object *xreq_hooked_json_cb(struct afb_req_x2 *closure)
390 struct json_object *r = xreq_json_cb(closure);
391 struct afb_xreq *xreq = xreq_from_req_x2(closure);
392 return afb_hook_xreq_json(xreq, r);
395 static struct afb_arg xreq_hooked_get_cb(struct afb_req_x2 *closure, const char *name)
397 struct afb_arg r = xreq_get_cb(closure, name);
398 struct afb_xreq *xreq = xreq_from_req_x2(closure);
399 return afb_hook_xreq_get(xreq, name, r);
402 static void xreq_hooked_reply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *info)
404 struct afb_xreq *xreq = xreq_from_req_x2(closure);
405 afb_hook_xreq_reply(xreq, obj, error, info);
406 xreq_reply_cb(closure, obj, error, info);
409 static void xreq_hooked_vreply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *fmt, va_list args)
412 if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
414 xreq_hooked_reply_cb(closure, obj, error, info);
418 static void xreq_hooked_legacy_success_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *info)
420 xreq_hooked_reply_cb(closure, obj, NULL, info);
423 static void xreq_hooked_legacy_fail_cb(struct afb_req_x2 *closure, const char *status, const char *info)
425 xreq_hooked_reply_cb(closure, NULL, status, info);
428 static void xreq_hooked_legacy_vsuccess_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *fmt, va_list args)
430 xreq_hooked_vreply_cb(closure, obj, NULL, fmt, args);
433 static void xreq_hooked_legacy_vfail_cb(struct afb_req_x2 *closure, const char *status, const char *fmt, va_list args)
435 xreq_hooked_vreply_cb(closure, NULL, status, fmt, args);
438 static void *xreq_hooked_legacy_context_get_cb(struct afb_req_x2 *closure)
440 void *r = xreq_legacy_context_get_cb(closure);
441 struct afb_xreq *xreq = xreq_from_req_x2(closure);
442 return afb_hook_xreq_legacy_context_get(xreq, r);
445 static void xreq_hooked_legacy_context_set_cb(struct afb_req_x2 *closure, void *value, void (*free_value)(void*))
447 struct afb_xreq *xreq = xreq_from_req_x2(closure);
448 afb_hook_xreq_legacy_context_set(xreq, value, free_value);
449 xreq_legacy_context_set_cb(closure, value, free_value);
452 static struct afb_req_x2 *xreq_hooked_addref_cb(struct afb_req_x2 *closure)
454 struct afb_xreq *xreq = xreq_from_req_x2(closure);
455 afb_hook_xreq_addref(xreq);
456 return xreq_addref_cb(closure);
459 static void xreq_hooked_unref_cb(struct afb_req_x2 *closure)
461 struct afb_xreq *xreq = xreq_from_req_x2(closure);
462 afb_hook_xreq_unref(xreq);
463 xreq_unref_cb(closure);
466 static void xreq_hooked_session_close_cb(struct afb_req_x2 *closure)
468 struct afb_xreq *xreq = xreq_from_req_x2(closure);
469 afb_hook_xreq_session_close(xreq);
470 xreq_session_close_cb(closure);
473 static int xreq_hooked_session_set_LOA_cb(struct afb_req_x2 *closure, unsigned level)
475 int r = xreq_session_set_LOA_cb(closure, level);
476 struct afb_xreq *xreq = xreq_from_req_x2(closure);
477 return afb_hook_xreq_session_set_LOA(xreq, level, r);
480 static int xreq_hooked_subscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
482 int r = xreq_subscribe_event_x2_cb(closure, event);
483 struct afb_xreq *xreq = xreq_from_req_x2(closure);
484 return afb_hook_xreq_subscribe(xreq, event, r);
487 static int xreq_hooked_legacy_subscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
489 return xreq_hooked_subscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
492 static int xreq_hooked_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
494 int r = xreq_unsubscribe_event_x2_cb(closure, event);
495 struct afb_xreq *xreq = xreq_from_req_x2(closure);
496 return afb_hook_xreq_unsubscribe(xreq, event, r);
499 static int xreq_hooked_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
501 return xreq_hooked_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
504 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)
506 struct afb_xreq *xreq = xreq_from_req_x2(req);
507 afb_calls_legacy_hooked_subcall_v1(xreq, api, verb, args, callback, closure);
510 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)
512 struct afb_xreq *xreq = xreq_from_req_x2(req);
513 afb_calls_legacy_hooked_subcall_v2(xreq, api, verb, args, callback, closure);
516 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)
518 struct afb_xreq *xreq = xreq_from_req_x2(req);
519 afb_calls_legacy_hooked_subcall_v3(xreq, api, verb, args, callback, closure);
522 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)
524 struct afb_xreq *xreq = xreq_from_req_x2(req);
525 return afb_calls_legacy_hooked_subcall_sync(xreq, api, verb, args, result);
528 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)
530 struct afb_xreq *xreq = xreq_from_req_x2(closure);
533 xreq_vverbose_cb(closure, level, file, line, func, fmt, args);
534 afb_hook_xreq_vverbose(xreq, level, file, line, func, fmt, ap);
538 static struct afb_stored_req *xreq_hooked_legacy_store_cb(struct afb_req_x2 *closure)
540 struct afb_xreq *xreq = xreq_from_req_x2(closure);
541 struct afb_stored_req *r = xreq_legacy_store_cb(closure);
542 afb_hook_xreq_legacy_store(xreq, r);
546 static int xreq_hooked_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
548 struct afb_xreq *xreq = xreq_from_req_x2(closure);
549 int r = xreq_has_permission_cb(closure, permission);
550 return afb_hook_xreq_has_permission(xreq, permission, r);
553 static char *xreq_hooked_get_application_id_cb(struct afb_req_x2 *closure)
555 struct afb_xreq *xreq = xreq_from_req_x2(closure);
556 char *r = xreq_get_application_id_cb(closure);
557 return afb_hook_xreq_get_application_id(xreq, r);
560 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)
562 struct afb_xreq *xreq = xreq_from_req_x2(closure);
563 void *result = xreq_context_make_cb(closure, replace, create_value, free_value, create_closure);
564 return afb_hook_xreq_context_make(xreq, replace, create_value, free_value, create_closure, result);
567 static int xreq_hooked_get_uid_cb(struct afb_req_x2 *closure)
569 struct afb_xreq *xreq = xreq_from_req_x2(closure);
570 int r = xreq_get_uid_cb(closure);
571 return afb_hook_xreq_get_uid(xreq, r);
574 static struct json_object *xreq_hooked_get_client_info_cb(struct afb_req_x2 *closure)
576 struct afb_xreq *xreq = xreq_from_req_x2(closure);
577 struct json_object *r = xreq_get_client_info_cb(closure);
578 return afb_hook_xreq_get_client_info(xreq, r);
581 static void xreq_hooked_subcall_cb(
582 struct afb_req_x2 *req,
585 struct json_object *args,
587 void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
590 struct afb_xreq *xreq = xreq_from_req_x2(req);
591 afb_calls_hooked_subcall(xreq, api, verb, args, flags, callback, closure);
594 static int xreq_hooked_subcallsync_cb(
595 struct afb_req_x2 *req,
598 struct json_object *args,
600 struct json_object **object,
604 struct afb_xreq *xreq = xreq_from_req_x2(req);
605 return afb_calls_hooked_subcall_sync(xreq, api, verb, args, flags, object, error, info);
608 /******************************************************************************/
610 const struct afb_req_x2_itf xreq_hooked_itf = {
611 .json = xreq_hooked_json_cb,
612 .get = xreq_hooked_get_cb,
613 .legacy_success = xreq_hooked_legacy_success_cb,
614 .legacy_fail = xreq_hooked_legacy_fail_cb,
615 .legacy_vsuccess = xreq_hooked_legacy_vsuccess_cb,
616 .legacy_vfail = xreq_hooked_legacy_vfail_cb,
617 .legacy_context_get = xreq_hooked_legacy_context_get_cb,
618 .legacy_context_set = xreq_hooked_legacy_context_set_cb,
619 .addref = xreq_hooked_addref_cb,
620 .unref = xreq_hooked_unref_cb,
621 .session_close = xreq_hooked_session_close_cb,
622 .session_set_LOA = xreq_hooked_session_set_LOA_cb,
623 .legacy_subscribe_event_x1 = xreq_hooked_legacy_subscribe_event_x1_cb,
624 .legacy_unsubscribe_event_x1 = xreq_hooked_legacy_unsubscribe_event_x1_cb,
625 .legacy_subcall = xreq_hooked_legacy_subcall_cb,
626 .legacy_subcallsync = xreq_hooked_legacy_subcallsync_cb,
627 .vverbose = xreq_hooked_vverbose_cb,
628 .legacy_store_req = xreq_hooked_legacy_store_cb,
629 .legacy_subcall_req = xreq_hooked_legacy_subcall_req_cb,
630 .has_permission = xreq_hooked_has_permission_cb,
631 .get_application_id = xreq_hooked_get_application_id_cb,
632 .context_make = xreq_hooked_context_make_cb,
633 .subscribe_event_x2 = xreq_hooked_subscribe_event_x2_cb,
634 .unsubscribe_event_x2 = xreq_hooked_unsubscribe_event_x2_cb,
635 .legacy_subcall_request = xreq_hooked_legacy_subcall_request_cb,
636 .get_uid = xreq_hooked_get_uid_cb,
637 .reply = xreq_hooked_reply_cb,
638 .vreply = xreq_hooked_vreply_cb,
639 .get_client_info = xreq_hooked_get_client_info_cb,
640 .subcall = xreq_hooked_subcall_cb,
641 .subcallsync = xreq_hooked_subcallsync_cb,
645 /******************************************************************************/
647 struct afb_req_x1 afb_xreq_unstore(struct afb_stored_req *sreq)
649 struct afb_xreq *xreq = (struct afb_xreq *)sreq;
652 afb_hook_xreq_legacy_unstore(xreq);
654 return xreq_to_req_x1(xreq);
657 struct json_object *afb_xreq_json(struct afb_xreq *xreq)
659 return afb_req_x2_json(xreq_to_req_x2(xreq));
662 void afb_xreq_reply(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info)
664 afb_req_x2_reply(xreq_to_req_x2(xreq), obj, error, info);
667 void afb_xreq_reply_f(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info, ...)
671 va_start(args, info);
672 afb_req_x2_reply_v(xreq_to_req_x2(xreq), obj, error, info, args);
676 const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
678 struct json_object *obj = xreq_json_cb(xreq_to_req_x2(xreq));
679 const char *result = json_object_to_json_string_ext(obj, JSON_C_TO_STRING_NOSLASHESCAPE);
681 *size = strlen(result);
685 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)
687 xreq_legacy_subcall_request_cb(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
690 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)
692 xreq_subcall_cb(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
695 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)
697 return xreq_legacy_subcallsync_cb(xreq_to_req_x2(xreq), api, verb, args, result);
700 void afb_xreq_addref(struct afb_xreq *xreq)
702 afb_req_x2_addref(xreq_to_req_x2(xreq));
705 void afb_xreq_unref(struct afb_xreq *xreq)
707 afb_req_x2_unref(xreq_to_req_x2(xreq));
710 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)
712 afb_req_x2_subcall_legacy(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
715 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)
717 afb_req_x2_subcall(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
720 int afb_xreq_legacy_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
722 return afb_req_x2_subcall_sync_legacy(xreq_to_req_x2(xreq), api, verb, args, result);
725 #if WITH_LEGACY_BINDING_V1
726 static int xreq_session_check_apply_v1(struct afb_xreq *xreq, int sessionflags)
730 if ((sessionflags & (AFB_SESSION_CLOSE_X1|AFB_SESSION_RENEW_X1|AFB_SESSION_CHECK_X1|AFB_SESSION_LOA_EQ_X1)) != 0) {
731 if (!afb_context_check(&xreq->context)) {
732 afb_context_close(&xreq->context);
733 afb_xreq_reply_f(xreq, NULL, "denied", "invalid token's identity");
739 if ((sessionflags & AFB_SESSION_LOA_GE_X1) != 0) {
740 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_X1) & AFB_SESSION_LOA_MASK_X1;
741 if (!afb_context_check_loa(&xreq->context, loa)) {
742 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
748 if ((sessionflags & AFB_SESSION_LOA_LE_X1) != 0) {
749 loa = (sessionflags >> AFB_SESSION_LOA_SHIFT_X1) & AFB_SESSION_LOA_MASK_X1;
750 if (afb_context_check_loa(&xreq->context, loa + 1)) {
751 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
757 if ((sessionflags & AFB_SESSION_RENEW_X1) != 0) {
758 afb_context_refresh(&xreq->context);
760 if ((sessionflags & AFB_SESSION_CLOSE_X1) != 0) {
761 afb_context_change_loa(&xreq->context, 0);
762 afb_context_close(&xreq->context);
769 static int xreq_session_check_apply_v2(struct afb_xreq *xreq, uint32_t sessionflags, const struct afb_auth *auth)
773 if (sessionflags != 0) {
774 if (!afb_context_check(&xreq->context)) {
775 afb_context_close(&xreq->context);
776 afb_xreq_reply_f(xreq, NULL, "denied", "invalid token's identity");
782 loa = (int)(sessionflags & AFB_SESSION_LOA_MASK_X2);
783 if (loa && !afb_context_check_loa(&xreq->context, loa)) {
784 afb_xreq_reply_f(xreq, NULL, "denied", "invalid LOA");
789 if (auth && !afb_auth_check(xreq, auth)) {
790 afb_xreq_reply_f(xreq, NULL, "denied", "authorisation refused");
795 if ((sessionflags & AFB_SESSION_REFRESH_X2) != 0) {
796 afb_context_refresh(&xreq->context);
798 if ((sessionflags & AFB_SESSION_CLOSE_X2) != 0) {
799 afb_context_close(&xreq->context);
805 #if WITH_LEGACY_BINDING_V1
806 void afb_xreq_call_verb_v1(struct afb_xreq *xreq, const struct afb_verb_desc_v1 *verb)
809 afb_xreq_reply_unknown_verb(xreq);
811 if (!xreq_session_check_apply_v1(xreq, verb->session))
812 verb->callback(xreq_to_req_x1(xreq));
816 #if WITH_LEGACY_BINDING_V2
817 void afb_xreq_call_verb_v2(struct afb_xreq *xreq, const struct afb_verb_v2 *verb)
820 afb_xreq_reply_unknown_verb(xreq);
822 if (!xreq_session_check_apply_v2(xreq, verb->session, verb->auth))
823 verb->callback(xreq_to_req_x1(xreq));
827 void afb_xreq_call_verb_v3(struct afb_xreq *xreq, const struct afb_verb_v3 *verb)
830 afb_xreq_reply_unknown_verb(xreq);
832 if (xreq_session_check_apply_v2(xreq, verb->session, verb->auth) >= 0)
833 verb->callback(xreq_to_req_x2(xreq));
836 void afb_xreq_init(struct afb_xreq *xreq, const struct afb_xreq_query_itf *queryitf)
838 memset(xreq, 0, sizeof *xreq);
839 xreq->request.itf = &xreq_itf; /* no hook by default */
841 xreq->queryitf = queryitf;
844 void afb_xreq_reply_unknown_api(struct afb_xreq *xreq)
846 afb_xreq_reply_f(xreq, NULL, "unknown-api", "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
849 void afb_xreq_reply_unknown_verb(struct afb_xreq *xreq)
851 afb_xreq_reply_f(xreq, NULL, "unknown-verb", "verb %s unknown within api %s", xreq->request.called_verb, xreq->request.called_api);
855 static void init_hooking(struct afb_xreq *xreq)
857 afb_hook_init_xreq(xreq);
858 if (xreq->hookflags) {
859 xreq->request.itf = &xreq_hooked_itf; /* unhook the interface */
860 afb_hook_xreq_begin(xreq);
866 * job callback for asynchronous and secured processing of the request.
868 static void process_async(int signum, void *arg)
870 struct afb_xreq *xreq = arg;
871 const struct afb_api_item *api;
874 /* emit the error (assumes that hooking is initialised) */
875 afb_xreq_reply_f(xreq, NULL, "aborted", "signal %s(%d) caught", strsignal(signum), signum);
881 /* invoke api call method to process the request */
882 api = (const struct afb_api_item*)xreq->context.api_key;
883 api->itf->call(api->closure, xreq);
885 /* release the request */
886 afb_xreq_unhooked_unref(xreq);
890 * Early request failure of the request 'xreq' with, as usual, 'status' and 'info'
891 * The early failure occurs only in function 'afb_xreq_process' where normally,
892 * the hooking is not initialised. So this "early" failure takes care to initialise
893 * the hooking in first.
895 static void early_failure(struct afb_xreq *xreq, const char *status, const char *info, ...)
905 va_start(args, info);
906 afb_req_x2_reply_v(xreq_to_req_x2(xreq), NULL, status, info, args);
911 * Enqueue a job for processing the request 'xreq' using the given 'apiset'.
912 * Errors are reported as request failures.
914 void afb_xreq_process(struct afb_xreq *xreq, struct afb_apiset *apiset)
916 const struct afb_api_item *api;
917 struct afb_xreq *caller;
919 /* lookup at the api */
920 xreq->apiset = apiset;
921 api = afb_apiset_lookup_started(apiset, xreq->request.called_api, 1);
924 early_failure(xreq, "unknown-api", "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
926 early_failure(xreq, "bad-api-state", "api %s not started correctly: %m", xreq->request.called_api);
929 xreq->context.api_key = api;
931 /* check self locking */
933 caller = xreq->caller;
935 if (((const struct afb_api_item*)caller->context.api_key)->group == api->group) {
936 /* noconcurrency lock detected */
937 ERROR("self-lock detected in call stack for API %s", xreq->request.called_api);
938 early_failure(xreq, "self-locked", "recursive self lock, API %s", xreq->request.called_api);
941 caller = caller->caller;
945 /* queue the request job */
946 afb_xreq_unhooked_addref(xreq);
947 if (jobs_queue(api->group, afb_apiset_timeout_get(apiset), process_async, xreq) < 0) {
948 /* TODO: allows or not to proccess it directly as when no threading? (see above) */
949 ERROR("can't process job with threads: %m");
950 early_failure(xreq, "cancelled", "not able to create a job for the task");
951 afb_xreq_unhooked_unref(xreq);
954 afb_xreq_unhooked_unref(xreq);
957 const char *xreq_on_behalf_cred_export(struct afb_xreq *xreq)
959 return xreq->caller ? afb_cred_export(xreq->cred) : NULL;