/*
- * Copyright (C) 2017 "IoT.bzh"
+ * Copyright (C) 2017-2019 "IoT.bzh"
* Author José Bollo <jose.bollo@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
*/
#define _GNU_SOURCE
-#define NO_BINDING_VERBOSE_MACRO
#include <stdlib.h>
+#include <stdio.h>
#include <string.h>
#include <errno.h>
+#include <stdarg.h>
#include <json-c/json.h>
-#include <afb/afb-binding.h>
-
+#if !defined(JSON_C_TO_STRING_NOSLASHESCAPE)
+#define JSON_C_TO_STRING_NOSLASHESCAPE 0
+#endif
+
+#include <afb/afb-binding-v1.h>
+#include <afb/afb-binding-v2.h>
+#include <afb/afb-binding-v3.h>
+#include <afb/afb-req-x2.h>
+
+#include "afb-api.h"
+#include "afb-apiset.h"
+#include "afb-auth.h"
+#include "afb-calls.h"
#include "afb-context.h"
-#include "afb-xreq.h"
#include "afb-evt.h"
+#include "afb-cred.h"
+#include "afb-hook.h"
#include "afb-msg-json.h"
-#include "afb-subcall.h"
+#include "afb-xreq.h"
+#include "afb-error-text.h"
+
+#include "jobs.h"
#include "verbose.h"
+/******************************************************************************/
+
+static void xreq_finalize(struct afb_xreq *xreq)
+{
+ if (!xreq->replied)
+ afb_xreq_reply(xreq, NULL, afb_error_text_not_replied, NULL);
+#if WITH_AFB_HOOK
+ if (xreq->hookflags)
+ afb_hook_xreq_end(xreq);
+#endif
+ if (xreq->caller)
+ afb_xreq_unhooked_unref(xreq->caller);
+ xreq->queryitf->unref(xreq);
+}
+
+inline void afb_xreq_unhooked_addref(struct afb_xreq *xreq)
+{
+ __atomic_add_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED);
+}
+
+inline void afb_xreq_unhooked_unref(struct afb_xreq *xreq)
+{
+ if (!__atomic_sub_fetch(&xreq->refcount, 1, __ATOMIC_RELAXED))
+ xreq_finalize(xreq);
+}
+
+/******************************************************************************/
+
+struct json_object *afb_xreq_unhooked_json(struct afb_xreq *xreq)
+{
+ if (!xreq->json && xreq->queryitf->json)
+ xreq->json = xreq->queryitf->json(xreq);
+ return xreq->json;
+}
+
+static struct json_object *xreq_json_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_xreq_unhooked_json(xreq);
+}
+
+static struct afb_arg xreq_get_cb(struct afb_req_x2 *closure, const char *name)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct afb_arg arg;
+ struct json_object *object, *value;
+
+ if (xreq->queryitf->get)
+ arg = xreq->queryitf->get(xreq, name);
+ else {
+ object = xreq_json_cb(closure);
+ if (json_object_object_get_ex(object, name, &value)) {
+ arg.name = name;
+ arg.value = json_object_get_string(value);
+ } else {
+ arg.name = NULL;
+ arg.value = NULL;
+ }
+ arg.path = NULL;
+ }
+ return arg;
+}
+
+static void xreq_reply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *info)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+
+ if (xreq->replied) {
+ ERROR("reply called more than one time!!");
+ json_object_put(obj);
+ } else {
+ xreq->replied = 1;
+ xreq->queryitf->reply(xreq, obj, error, info);
+ }
+}
+
+static void xreq_vreply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *fmt, va_list args)
+{
+ char *info;
+ if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
+ info = NULL;
+ xreq_reply_cb(closure, obj, error, info);
+ free(info);
+}
+
+static void xreq_legacy_success_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *info)
+{
+ xreq_reply_cb(closure, obj, NULL, info);
+}
+
+static void xreq_legacy_fail_cb(struct afb_req_x2 *closure, const char *status, const char *info)
+{
+ xreq_reply_cb(closure, NULL, status, info);
+}
+
+static void xreq_legacy_vsuccess_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *fmt, va_list args)
+{
+ xreq_vreply_cb(closure, obj, NULL, fmt, args);
+}
+
+static void xreq_legacy_vfail_cb(struct afb_req_x2 *closure, const char *status, const char *fmt, va_list args)
+{
+ xreq_vreply_cb(closure, NULL, status, fmt, args);
+}
+
+static void *xreq_legacy_context_get_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_context_get(&xreq->context);
+}
+
+static void xreq_legacy_context_set_cb(struct afb_req_x2 *closure, void *value, void (*free_value)(void*))
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_context_set(&xreq->context, value, free_value);
+}
+
+static struct afb_req_x2 *xreq_addref_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_xreq_unhooked_addref(xreq);
+ return closure;
+}
+
+static void xreq_unref_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_xreq_unhooked_unref(xreq);
+}
+
+static void xreq_session_close_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_context_close(&xreq->context);
+}
+
+static int xreq_session_set_LOA_cb(struct afb_req_x2 *closure, unsigned level)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_context_change_loa(&xreq->context, level);
+}
+
+static int xreq_subscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_xreq_subscribe(xreq, event);
+}
+
+static int xreq_legacy_subscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
+{
+ return xreq_subscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
+}
+
+int afb_xreq_subscribe(struct afb_xreq *xreq, struct afb_event_x2 *event)
+{
+ if (xreq->replied) {
+ ERROR("request replied, subscription impossible");
+ errno = EINVAL;
+ } else {
+ if (xreq->queryitf->subscribe)
+ return xreq->queryitf->subscribe(xreq, event);
+ ERROR("no event listener, subscription impossible");
+ errno = ENOTSUP;
+ }
+ return -1;
+}
+
+static int xreq_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_xreq_unsubscribe(xreq, event);
+}
+
+static int xreq_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
+{
+ return xreq_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
+}
+
+int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event_x2 *event)
+{
+ if (xreq->replied) {
+ ERROR("request replied, unsubscription impossible");
+ errno = EINVAL;
+ } else {
+ if (xreq->queryitf->unsubscribe)
+ return xreq->queryitf->unsubscribe(xreq, event);
+ ERROR("no event listener, unsubscription impossible");
+ errno = ENOTSUP;
+ }
+ return -1;
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_legacy_subcall_v1(xreq, api, verb, args, callback, closure);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_legacy_subcall_v2(xreq, api, verb, args, callback, closure);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_legacy_subcall_v3(xreq, api, verb, args, callback, closure);
+}
-static struct json_object *xreq_json_cb(void *closure);
-static struct afb_arg xreq_get_cb(void *closure, const char *name);
-static void xreq_success_cb(void *closure, struct json_object *obj, const char *info);
-static void xreq_fail_cb(void *closure, const char *status, const char *info);
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_legacy_subcall_sync(xreq, api, verb, args, result);
+}
+
+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)
+{
+ char *p;
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+
+ if (!fmt || vasprintf(&p, fmt, args) < 0)
+ vverbose(level, file, line, func, fmt, args);
+ else {
+ verbose(level, file, line, func, "[REQ/API %s] %s", xreq->request.called_api, p);
+ free(p);
+ }
+}
+
+static struct afb_stored_req *xreq_legacy_store_cb(struct afb_req_x2 *closure)
+{
+ xreq_addref_cb(closure);
+ return (struct afb_stored_req*)closure;
+}
-static const char *xreq_raw_cb(void *closure, size_t *size);
-static void xreq_send_cb(void *closure, const char *buffer, size_t size);
+static int xreq_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_context_has_permission(&xreq->context, permission);
+}
-static void *xreq_context_get_cb(void *closure);
-static void xreq_context_set_cb(void *closure, void *value, void (*free_value)(void*));
+static char *xreq_get_application_id_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct afb_cred *cred = xreq->context.credentials;
+ return cred && cred->id ? strdup(cred->id) : NULL;
+}
-static void xreq_addref_cb(void *closure);
-static void xreq_unref_cb(void *closure);
+static void *xreq_context_make_cb(struct afb_req_x2 *closure, int replace, void *(*create_value)(void*), void (*free_value)(void*), void *create_closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_context_make(&xreq->context, replace, create_value, free_value, create_closure);
+}
-static void xreq_session_close_cb(void *closure);
-static int xreq_session_set_LOA_cb(void *closure, unsigned level);
+static int xreq_get_uid_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct afb_cred *cred = xreq->context.credentials;
+ return cred && cred->id ? (int)cred->uid : -1;
+}
-static int xreq_subscribe_cb(void *closure, struct afb_event event);
-static int xreq_unsubscribe_cb(void *closure, struct afb_event event);
+static struct json_object *xreq_get_client_info_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct afb_cred *cred = xreq->context.credentials;
+ struct json_object *r = json_object_new_object();
+ if (cred && cred->id) {
+ json_object_object_add(r, "uid", json_object_new_int(cred->uid));
+ json_object_object_add(r, "gid", json_object_new_int(cred->gid));
+ json_object_object_add(r, "pid", json_object_new_int(cred->pid));
+ json_object_object_add(r, "user", json_object_new_string(cred->user));
+ json_object_object_add(r, "label", json_object_new_string(cred->label));
+ json_object_object_add(r, "id", json_object_new_string(cred->id));
+ }
+ if (xreq->context.session) {
+ json_object_object_add(r, "uuid", json_object_new_string(afb_context_uuid(&xreq->context)?:""));
+ json_object_object_add(r, "LOA", json_object_new_int(afb_context_get_loa(&xreq->context)));
+ }
+ return r;
+}
static void xreq_subcall_cb(
- void *closure,
- const char *api,
- const char *verb,
- struct json_object *args,
- void (*callback)(void*, int, struct json_object*),
- void *cb_closure);
+ struct afb_req_x2 *req,
+ const char *api,
+ const char *verb,
+ struct json_object *args,
+ int flags,
+ void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
+ void *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ afb_calls_subcall(xreq, api, verb, args, flags, callback, closure);
+}
static int xreq_subcallsync_cb(
- void *closure,
- const char *api,
- const char *verb,
- struct json_object *args,
- struct json_object **result);
+ struct afb_req_x2 *req,
+ const char *api,
+ const char *verb,
+ struct json_object *args,
+ int flags,
+ struct json_object **object,
+ char **error,
+ char **info)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_subcall_sync(xreq, api, verb, args, flags, object, error, info);
+}
+
+/******************************************************************************/
-const struct afb_req_itf xreq_itf = {
+const struct afb_req_x2_itf xreq_itf = {
.json = xreq_json_cb,
.get = xreq_get_cb,
- .success = xreq_success_cb,
- .fail = xreq_fail_cb,
- .raw = xreq_raw_cb,
- .send = xreq_send_cb,
- .context_get = xreq_context_get_cb,
- .context_set = xreq_context_set_cb,
+ .legacy_success = xreq_legacy_success_cb,
+ .legacy_fail = xreq_legacy_fail_cb,
+ .legacy_vsuccess = xreq_legacy_vsuccess_cb,
+ .legacy_vfail = xreq_legacy_vfail_cb,
+ .legacy_context_get = xreq_legacy_context_get_cb,
+ .legacy_context_set = xreq_legacy_context_set_cb,
.addref = xreq_addref_cb,
.unref = xreq_unref_cb,
.session_close = xreq_session_close_cb,
.session_set_LOA = xreq_session_set_LOA_cb,
- .subscribe = xreq_subscribe_cb,
- .unsubscribe = xreq_unsubscribe_cb,
+ .legacy_subscribe_event_x1 = xreq_legacy_subscribe_event_x1_cb,
+ .legacy_unsubscribe_event_x1 = xreq_legacy_unsubscribe_event_x1_cb,
+ .legacy_subcall = xreq_legacy_subcall_cb,
+ .legacy_subcallsync = xreq_legacy_subcallsync_cb,
+ .vverbose = xreq_vverbose_cb,
+ .legacy_store_req = xreq_legacy_store_cb,
+ .legacy_subcall_req = xreq_legacy_subcall_req_cb,
+ .has_permission = xreq_has_permission_cb,
+ .get_application_id = xreq_get_application_id_cb,
+ .context_make = xreq_context_make_cb,
+ .subscribe_event_x2 = xreq_subscribe_event_x2_cb,
+ .unsubscribe_event_x2 = xreq_unsubscribe_event_x2_cb,
+ .legacy_subcall_request = xreq_legacy_subcall_request_cb,
+ .get_uid = xreq_get_uid_cb,
+ .reply = xreq_reply_cb,
+ .vreply = xreq_vreply_cb,
+ .get_client_info = xreq_get_client_info_cb,
.subcall = xreq_subcall_cb,
- .subcallsync = xreq_subcallsync_cb
+ .subcallsync = xreq_subcallsync_cb,
};
+/******************************************************************************/
+#if WITH_AFB_HOOK
-static struct json_object *xreq_json_cb(void *closure)
+static struct json_object *xreq_hooked_json_cb(struct afb_req_x2 *closure)
{
- struct afb_xreq *xreq = closure;
- return xreq->json ? : (xreq->json = xreq->queryitf->json(xreq->query));
+ struct json_object *r = xreq_json_cb(closure);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_json(xreq, r);
}
-static struct afb_arg xreq_get_cb(void *closure, const char *name)
+static struct afb_arg xreq_hooked_get_cb(struct afb_req_x2 *closure, const char *name)
{
- struct afb_xreq *xreq = closure;
- if (xreq->queryitf->get)
- return xreq->queryitf->get(xreq->query, name);
- else
- return afb_msg_json_get_arg(xreq_json_cb(closure), name);
+ struct afb_arg r = xreq_get_cb(closure, name);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_get(xreq, name, r);
}
-static void xreq_success_cb(void *closure, struct json_object *obj, const char *info)
+static void xreq_hooked_reply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *info)
{
- struct afb_xreq *xreq = closure;
- afb_xreq_success(xreq, obj, info);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_hook_xreq_reply(xreq, obj, error, info);
+ xreq_reply_cb(closure, obj, error, info);
}
-void afb_xreq_success(struct afb_xreq *xreq, struct json_object *obj, const char *info)
+static void xreq_hooked_vreply_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *error, const char *fmt, va_list args)
{
- if (xreq->replied) {
- ERROR("reply called more than one time!!");
- json_object_put(obj);
- } else {
- xreq->replied = 1;
- if (xreq->queryitf->success)
- xreq->queryitf->success(xreq->query, obj, info);
- else
- xreq->queryitf->reply(xreq->query, 0, afb_msg_json_reply_ok(info, obj, &xreq->context, NULL));
- }
+ char *info;
+ if (fmt == NULL || vasprintf(&info, fmt, args) < 0)
+ info = NULL;
+ xreq_hooked_reply_cb(closure, obj, error, info);
+ free(info);
}
-static void xreq_fail_cb(void *closure, const char *status, const char *info)
+static void xreq_hooked_legacy_success_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *info)
{
- struct afb_xreq *xreq = closure;
- afb_xreq_fail(xreq, status, info);
+ xreq_hooked_reply_cb(closure, obj, NULL, info);
}
-void afb_xreq_fail(struct afb_xreq *xreq, const char *status, const char *info)
+static void xreq_hooked_legacy_fail_cb(struct afb_req_x2 *closure, const char *status, const char *info)
{
- if (xreq->replied) {
- ERROR("reply called more than one time!!");
- } else {
- xreq->replied = 1;
- if (xreq->queryitf->fail)
- xreq->queryitf->fail(xreq->query, status, info);
- else
- xreq->queryitf->reply(xreq->query, 1, afb_msg_json_reply_error(status, info, &xreq->context, NULL));
- }
+ xreq_hooked_reply_cb(closure, NULL, status, info);
}
-static const char *xreq_raw_cb(void *closure, size_t *size)
+static void xreq_hooked_legacy_vsuccess_cb(struct afb_req_x2 *closure, struct json_object *obj, const char *fmt, va_list args)
{
- struct afb_xreq *xreq = closure;
- return afb_xreq_raw(xreq, size);
+ xreq_hooked_vreply_cb(closure, obj, NULL, fmt, args);
}
-const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
+static void xreq_hooked_legacy_vfail_cb(struct afb_req_x2 *closure, const char *status, const char *fmt, va_list args)
{
- const char *result = json_object_to_json_string(xreq_json_cb(xreq));
- if (size != NULL)
- *size = strlen(result);
- return result;
+ xreq_hooked_vreply_cb(closure, NULL, status, fmt, args);
}
-static void xreq_send_cb(void *closure, const char *buffer, size_t size)
+static void *xreq_hooked_legacy_context_get_cb(struct afb_req_x2 *closure)
{
- struct json_object *obj = json_tokener_parse(buffer);
- if (!obj == !buffer)
- xreq_success_cb(closure, obj, "fake send");
- else
- xreq_fail_cb(closure, "fake-send-failed", "fake send");
+ void *r = xreq_legacy_context_get_cb(closure);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_legacy_context_get(xreq, r);
}
-static void *xreq_context_get_cb(void *closure)
+static void xreq_hooked_legacy_context_set_cb(struct afb_req_x2 *closure, void *value, void (*free_value)(void*))
{
- struct afb_xreq *xreq = closure;
- return afb_context_get(&xreq->context);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_hook_xreq_legacy_context_set(xreq, value, free_value);
+ xreq_legacy_context_set_cb(closure, value, free_value);
}
-static void xreq_context_set_cb(void *closure, void *value, void (*free_value)(void*))
+static struct afb_req_x2 *xreq_hooked_addref_cb(struct afb_req_x2 *closure)
{
- struct afb_xreq *xreq = closure;
- afb_context_set(&xreq->context, value, free_value);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_hook_xreq_addref(xreq);
+ return xreq_addref_cb(closure);
}
-static void xreq_addref_cb(void *closure)
+static void xreq_hooked_unref_cb(struct afb_req_x2 *closure)
{
- struct afb_xreq *xreq = closure;
- afb_xreq_addref(xreq);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_hook_xreq_unref(xreq);
+ xreq_unref_cb(closure);
}
-void afb_xreq_addref(struct afb_xreq *xreq)
+static void xreq_hooked_session_close_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ afb_hook_xreq_session_close(xreq);
+ xreq_session_close_cb(closure);
+}
+
+static int xreq_hooked_session_set_LOA_cb(struct afb_req_x2 *closure, unsigned level)
+{
+ int r = xreq_session_set_LOA_cb(closure, level);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_session_set_LOA(xreq, level, r);
+}
+
+static int xreq_hooked_subscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
+{
+ int r = xreq_subscribe_event_x2_cb(closure, event);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_subscribe(xreq, event, r);
+}
+
+static int xreq_hooked_legacy_subscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
+{
+ return xreq_hooked_subscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
+}
+
+static int xreq_hooked_unsubscribe_event_x2_cb(struct afb_req_x2 *closure, struct afb_event_x2 *event)
+{
+ int r = xreq_unsubscribe_event_x2_cb(closure, event);
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ return afb_hook_xreq_unsubscribe(xreq, event, r);
+}
+
+static int xreq_hooked_legacy_unsubscribe_event_x1_cb(struct afb_req_x2 *closure, struct afb_event_x1 event)
+{
+ return xreq_hooked_unsubscribe_event_x2_cb(closure, afb_event_x1_to_event_x2(event));
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ afb_calls_legacy_hooked_subcall_v1(xreq, api, verb, args, callback, closure);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ afb_calls_legacy_hooked_subcall_v2(xreq, api, verb, args, callback, closure);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ afb_calls_legacy_hooked_subcall_v3(xreq, api, verb, args, callback, closure);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_legacy_hooked_subcall_sync(xreq, api, verb, args, result);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ va_list ap;
+ va_copy(ap, args);
+ xreq_vverbose_cb(closure, level, file, line, func, fmt, args);
+ afb_hook_xreq_vverbose(xreq, level, file, line, func, fmt, ap);
+ va_end(ap);
+}
+
+static struct afb_stored_req *xreq_hooked_legacy_store_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct afb_stored_req *r = xreq_legacy_store_cb(closure);
+ afb_hook_xreq_legacy_store(xreq, r);
+ return r;
+}
+
+static int xreq_hooked_has_permission_cb(struct afb_req_x2 *closure, const char *permission)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ int r = xreq_has_permission_cb(closure, permission);
+ return afb_hook_xreq_has_permission(xreq, permission, r);
+}
+
+static char *xreq_hooked_get_application_id_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ char *r = xreq_get_application_id_cb(closure);
+ return afb_hook_xreq_get_application_id(xreq, r);
+}
+
+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)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ void *result = xreq_context_make_cb(closure, replace, create_value, free_value, create_closure);
+ return afb_hook_xreq_context_make(xreq, replace, create_value, free_value, create_closure, result);
+}
+
+static int xreq_hooked_get_uid_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ int r = xreq_get_uid_cb(closure);
+ return afb_hook_xreq_get_uid(xreq, r);
+}
+
+static struct json_object *xreq_hooked_get_client_info_cb(struct afb_req_x2 *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(closure);
+ struct json_object *r = xreq_get_client_info_cb(closure);
+ return afb_hook_xreq_get_client_info(xreq, r);
+}
+
+static void xreq_hooked_subcall_cb(
+ struct afb_req_x2 *req,
+ const char *api,
+ const char *verb,
+ struct json_object *args,
+ int flags,
+ void (*callback)(void *closure, struct json_object *object, const char *error, const char * info, struct afb_req_x2 *req),
+ void *closure)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ afb_calls_hooked_subcall(xreq, api, verb, args, flags, callback, closure);
+}
+
+static int xreq_hooked_subcallsync_cb(
+ struct afb_req_x2 *req,
+ const char *api,
+ const char *verb,
+ struct json_object *args,
+ int flags,
+ struct json_object **object,
+ char **error,
+ char **info)
+{
+ struct afb_xreq *xreq = xreq_from_req_x2(req);
+ return afb_calls_hooked_subcall_sync(xreq, api, verb, args, flags, object, error, info);
+}
+
+/******************************************************************************/
+
+const struct afb_req_x2_itf xreq_hooked_itf = {
+ .json = xreq_hooked_json_cb,
+ .get = xreq_hooked_get_cb,
+ .legacy_success = xreq_hooked_legacy_success_cb,
+ .legacy_fail = xreq_hooked_legacy_fail_cb,
+ .legacy_vsuccess = xreq_hooked_legacy_vsuccess_cb,
+ .legacy_vfail = xreq_hooked_legacy_vfail_cb,
+ .legacy_context_get = xreq_hooked_legacy_context_get_cb,
+ .legacy_context_set = xreq_hooked_legacy_context_set_cb,
+ .addref = xreq_hooked_addref_cb,
+ .unref = xreq_hooked_unref_cb,
+ .session_close = xreq_hooked_session_close_cb,
+ .session_set_LOA = xreq_hooked_session_set_LOA_cb,
+ .legacy_subscribe_event_x1 = xreq_hooked_legacy_subscribe_event_x1_cb,
+ .legacy_unsubscribe_event_x1 = xreq_hooked_legacy_unsubscribe_event_x1_cb,
+ .legacy_subcall = xreq_hooked_legacy_subcall_cb,
+ .legacy_subcallsync = xreq_hooked_legacy_subcallsync_cb,
+ .vverbose = xreq_hooked_vverbose_cb,
+ .legacy_store_req = xreq_hooked_legacy_store_cb,
+ .legacy_subcall_req = xreq_hooked_legacy_subcall_req_cb,
+ .has_permission = xreq_hooked_has_permission_cb,
+ .get_application_id = xreq_hooked_get_application_id_cb,
+ .context_make = xreq_hooked_context_make_cb,
+ .subscribe_event_x2 = xreq_hooked_subscribe_event_x2_cb,
+ .unsubscribe_event_x2 = xreq_hooked_unsubscribe_event_x2_cb,
+ .legacy_subcall_request = xreq_hooked_legacy_subcall_request_cb,
+ .get_uid = xreq_hooked_get_uid_cb,
+ .reply = xreq_hooked_reply_cb,
+ .vreply = xreq_hooked_vreply_cb,
+ .get_client_info = xreq_hooked_get_client_info_cb,
+ .subcall = xreq_hooked_subcall_cb,
+ .subcallsync = xreq_hooked_subcallsync_cb,
+};
+#endif
+
+/******************************************************************************/
+
+struct afb_req_x1 afb_xreq_unstore(struct afb_stored_req *sreq)
+{
+ struct afb_xreq *xreq = (struct afb_xreq *)sreq;
+#if WITH_AFB_HOOK
+ if (xreq->hookflags)
+ afb_hook_xreq_legacy_unstore(xreq);
+#endif
+ return xreq_to_req_x1(xreq);
+}
+
+struct json_object *afb_xreq_json(struct afb_xreq *xreq)
+{
+ return afb_req_x2_json(xreq_to_req_x2(xreq));
+}
+
+void afb_xreq_reply(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info)
+{
+ afb_req_x2_reply(xreq_to_req_x2(xreq), obj, error, info);
+}
+
+void afb_xreq_reply_f(struct afb_xreq *xreq, struct json_object *obj, const char *error, const char *info, ...)
+{
+ va_list args;
+
+ va_start(args, info);
+ afb_req_x2_reply_v(xreq_to_req_x2(xreq), obj, error, info, args);
+ va_end(args);
+}
+
+const char *afb_xreq_raw(struct afb_xreq *xreq, size_t *size)
+{
+ struct json_object *obj = xreq_json_cb(xreq_to_req_x2(xreq));
+ const char *result = json_object_to_json_string_ext(obj, JSON_C_TO_STRING_NOSLASHESCAPE);
+ if (size != NULL)
+ *size = strlen(result);
+ return result;
+}
+
+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)
{
- xreq->refcount++;
+ xreq_legacy_subcall_request_cb(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
}
-static void xreq_unref_cb(void *closure)
+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)
{
- struct afb_xreq *xreq = closure;
- afb_xreq_unref(xreq);
+ xreq_subcall_cb(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
+}
+
+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)
+{
+ return xreq_legacy_subcallsync_cb(xreq_to_req_x2(xreq), api, verb, args, result);
+}
+
+void afb_xreq_addref(struct afb_xreq *xreq)
+{
+ afb_req_x2_addref(xreq_to_req_x2(xreq));
}
void afb_xreq_unref(struct afb_xreq *xreq)
{
- if (!--xreq->refcount) {
- xreq->queryitf->unref(xreq->query);
- }
+ afb_req_x2_unref(xreq_to_req_x2(xreq));
}
-static void xreq_session_close_cb(void *closure)
+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)
{
- struct afb_xreq *xreq = closure;
- afb_context_close(&xreq->context);
+ afb_req_x2_subcall_legacy(xreq_to_req_x2(xreq), api, verb, args, callback, cb_closure);
}
-static int xreq_session_set_LOA_cb(void *closure, unsigned level)
+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)
{
- struct afb_xreq *xreq = closure;
- return afb_context_change_loa(&xreq->context, level);
+ afb_req_x2_subcall(xreq_to_req_x2(xreq), api, verb, args, flags, callback, closure);
}
-static int xreq_subscribe_cb(void *closure, struct afb_event event)
+int afb_xreq_legacy_subcall_sync(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, struct json_object **result)
{
- struct afb_xreq *xreq = closure;
- return afb_xreq_subscribe(xreq, event);
+ return afb_req_x2_subcall_sync_legacy(xreq_to_req_x2(xreq), api, verb, args, result);
}
-int afb_xreq_subscribe(struct afb_xreq *xreq, struct afb_event event)
+int afb_xreq_reply_unknown_api(struct afb_xreq *xreq)
{
- if (xreq->listener)
- return afb_evt_add_watch(xreq->listener, event);
- if (xreq->queryitf->subscribe)
- return xreq->queryitf->subscribe(xreq->query, event);
- ERROR("no event listener, subscription impossible");
+ afb_xreq_reply_f(xreq, NULL, afb_error_text_unknown_api, "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
errno = EINVAL;
return -1;
}
-static int xreq_unsubscribe_cb(void *closure, struct afb_event event)
+int afb_xreq_reply_unknown_verb(struct afb_xreq *xreq)
{
- struct afb_xreq *xreq = closure;
- return afb_xreq_unsubscribe(xreq, event);
+ afb_xreq_reply_f(xreq, NULL, afb_error_text_unknown_verb, "verb %s unknown within api %s", xreq->request.called_verb, xreq->request.called_api);
+ errno = EINVAL;
+ return -1;
}
-int afb_xreq_unsubscribe(struct afb_xreq *xreq, struct afb_event event)
+int afb_xreq_reply_invalid_token(struct afb_xreq *xreq)
{
- if (xreq->listener)
- return afb_evt_remove_watch(xreq->listener, event);
- if (xreq->queryitf->unsubscribe)
- return xreq->queryitf->unsubscribe(xreq->query, event);
- ERROR("no event listener, unsubscription impossible");
+ afb_xreq_reply(xreq, NULL, afb_error_text_invalid_token, "invalid token"); /* TODO: or "no token" */
errno = EINVAL;
return -1;
}
-static void xreq_subcall_cb(void *closure, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
+int afb_xreq_reply_insufficient_scope(struct afb_xreq *xreq, const char *scope)
{
- struct afb_xreq *xreq = closure;
-
- afb_xreq_subcall(xreq, api, verb, args, callback, cb_closure);
+ afb_xreq_reply(xreq, NULL, afb_error_text_insufficient_scope, scope ?: "insufficient scope");
+ errno = EPERM;
+ return -1;
}
-void afb_xreq_subcall(struct afb_xreq *xreq, const char *api, const char *verb, struct json_object *args, void (*callback)(void*, int, struct json_object*), void *cb_closure)
+#if WITH_LEGACY_BINDING_V1
+void afb_xreq_call_verb_v1(struct afb_xreq *xreq, const struct afb_verb_desc_v1 *verb)
{
- if (xreq->queryitf->subcall)
- xreq->queryitf->subcall(xreq->query, api, verb, args, callback, cb_closure);
+ if (!verb)
+ afb_xreq_reply_unknown_verb(xreq);
else
- afb_subcall(xreq, api, verb, args, callback, cb_closure);
+ if (afb_auth_check_and_set_session_x1(xreq, verb->session) >= 0)
+ verb->callback(xreq_to_req_x1(xreq));
}
+#endif
-static int xreq_subcallsync_cb(void *closure, const char *api, const char *verb, struct json_object *args, struct json_object **result)
+#if WITH_LEGACY_BINDING_V2
+void afb_xreq_call_verb_v2(struct afb_xreq *xreq, const struct afb_verb_v2 *verb)
{
- struct afb_xreq *xreq = closure;
- return afb_subcall_sync(xreq, api, verb, args, result);
+ if (!verb)
+ afb_xreq_reply_unknown_verb(xreq);
+ else
+ if (afb_auth_check_and_set_session_x2(xreq, verb->auth, verb->session) > 0)
+ verb->callback(xreq_to_req_x1(xreq));
}
+#endif
-void afb_xreq_success_f(struct afb_xreq *xreq, struct json_object *obj, const char *info, ...)
+void afb_xreq_call_verb_v3(struct afb_xreq *xreq, const struct afb_verb_v3 *verb)
{
- char *message;
- va_list args;
- va_start(args, info);
- if (info == NULL || vasprintf(&message, info, args) < 0)
- message = NULL;
- va_end(args);
- afb_xreq_success(xreq, obj, message);
- free(message);
+ if (!verb)
+ afb_xreq_reply_unknown_verb(xreq);
+ else
+ if (afb_auth_check_and_set_session_x2(xreq, verb->auth, verb->session) > 0)
+ verb->callback(xreq_to_req_x2(xreq));
}
-void afb_xreq_fail_f(struct afb_xreq *xreq, const char *status, const char *info, ...)
+void afb_xreq_init(struct afb_xreq *xreq, const struct afb_xreq_query_itf *queryitf)
{
- char *message;
- va_list args;
- va_start(args, info);
- if (info == NULL || vasprintf(&message, info, args) < 0)
- message = NULL;
- va_end(args);
- afb_xreq_fail(xreq, status, message);
- free(message);
+ memset(xreq, 0, sizeof *xreq);
+ xreq->request.itf = &xreq_itf; /* no hook by default */
+ xreq->refcount = 1;
+ xreq->queryitf = queryitf;
}
-static int xcheck(struct afb_xreq *xreq, int sessionflags)
+#if WITH_AFB_HOOK
+static void init_hooking(struct afb_xreq *xreq)
{
- if ((sessionflags & (AFB_SESSION_CREATE|AFB_SESSION_CLOSE|AFB_SESSION_RENEW|AFB_SESSION_CHECK|AFB_SESSION_LOA_EQ)) != 0) {
- if (!afb_context_check(&xreq->context)) {
- afb_context_close(&xreq->context);
- afb_xreq_fail_f(xreq, "failed", "invalid token's identity");
- return 0;
- }
+ afb_hook_init_xreq(xreq);
+ if (xreq->hookflags) {
+ xreq->request.itf = &xreq_hooked_itf; /* unhook the interface */
+ afb_hook_xreq_begin(xreq);
}
+}
+#endif
- if ((sessionflags & AFB_SESSION_CREATE) != 0) {
- if (afb_context_check_loa(&xreq->context, 1)) {
- afb_xreq_fail_f(xreq, "failed", "invalid creation state");
- return 0;
- }
- afb_context_change_loa(&xreq->context, 1);
- afb_context_refresh(&xreq->context);
+/**
+ * job callback for asynchronous and secured processing of the request.
+ */
+static void process_async(int signum, void *arg)
+{
+ struct afb_xreq *xreq = arg;
+ const struct afb_api_item *api;
+
+ if (signum != 0) {
+ /* emit the error (assumes that hooking is initialised) */
+ afb_xreq_reply_f(xreq, NULL, afb_error_text_aborted, "signal %s(%d) caught", strsignal(signum), signum);
+ } else {
+#if WITH_AFB_HOOK
+ /* init hooking */
+ init_hooking(xreq);
+#endif
+ /* invoke api call method to process the request */
+ api = (const struct afb_api_item*)xreq->context.api_key;
+ api->itf->call(api->closure, xreq);
}
+ /* release the request */
+ afb_xreq_unhooked_unref(xreq);
+}
- if ((sessionflags & (AFB_SESSION_CREATE | AFB_SESSION_RENEW)) != 0)
- afb_context_refresh(&xreq->context);
+/**
+ * Early request failure of the request 'xreq' with, as usual, 'status' and 'info'
+ * The early failure occurs only in function 'afb_xreq_process' where normally,
+ * the hooking is not initialised. So this "early" failure takes care to initialise
+ * the hooking in first.
+ */
+static void early_failure(struct afb_xreq *xreq, const char *status, const char *info, ...)
+{
+ va_list args;
- if ((sessionflags & AFB_SESSION_CLOSE) != 0) {
- afb_context_change_loa(&xreq->context, 0);
- afb_context_close(&xreq->context);
- }
+#if WITH_AFB_HOOK
+ /* init hooking */
+ init_hooking(xreq);
+#endif
- if ((sessionflags & AFB_SESSION_LOA_GE) != 0) {
- int loa = (sessionflags >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
- if (!afb_context_check_loa(&xreq->context, loa)) {
- afb_xreq_fail_f(xreq, "failed", "invalid LOA");
- return 0;
+ /* send error */
+ va_start(args, info);
+ afb_req_x2_reply_v(xreq_to_req_x2(xreq), NULL, status, info, args);
+ va_end(args);
+}
+
+/**
+ * Enqueue a job for processing the request 'xreq' using the given 'apiset'.
+ * Errors are reported as request failures.
+ */
+void afb_xreq_process(struct afb_xreq *xreq, struct afb_apiset *apiset)
+{
+ const struct afb_api_item *api;
+ struct afb_xreq *caller;
+
+ /* lookup at the api */
+ xreq->apiset = apiset;
+ api = afb_apiset_lookup_started(apiset, xreq->request.called_api, 1);
+ if (!api) {
+ if (errno == ENOENT)
+ early_failure(xreq, "unknown-api", "api %s not found (for verb %s)", xreq->request.called_api, xreq->request.called_verb);
+ else
+ early_failure(xreq, "bad-api-state", "api %s not started correctly: %m", xreq->request.called_api);
+ goto end;
+ }
+ xreq->context.api_key = api;
+
+ /* check self locking */
+ if (api->group) {
+ caller = xreq->caller;
+ while (caller) {
+ if (((const struct afb_api_item*)caller->context.api_key)->group == api->group) {
+ /* noconcurrency lock detected */
+ ERROR("self-lock detected in call stack for API %s", xreq->request.called_api);
+ early_failure(xreq, "self-locked", "recursive self lock, API %s", xreq->request.called_api);
+ goto end;
+ }
+ caller = caller->caller;
}
}
- if ((sessionflags & AFB_SESSION_LOA_LE) != 0) {
- int loa = (sessionflags >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
- if (afb_context_check_loa(&xreq->context, loa + 1)) {
- afb_xreq_fail_f(xreq, "failed", "invalid LOA");
- return 0;
- }
+ /* queue the request job */
+ afb_xreq_unhooked_addref(xreq);
+ if (jobs_queue(api->group, afb_apiset_timeout_get(apiset), process_async, xreq) < 0) {
+ /* TODO: allows or not to proccess it directly as when no threading? (see above) */
+ ERROR("can't process job with threads: %m");
+ early_failure(xreq, "cancelled", "not able to create a job for the task");
+ afb_xreq_unhooked_unref(xreq);
}
- return 1;
+end:
+ afb_xreq_unhooked_unref(xreq);
}
-void afb_xreq_call(struct afb_xreq *xreq, int sessionflags, void (*method)(struct afb_req req))
+const char *xreq_on_behalf_cred_export(struct afb_xreq *xreq)
{
- if (xcheck(xreq, sessionflags))
- method((struct afb_req){ .itf = &xreq_itf, .closure = xreq });
+ return afb_context_on_behalf_export(&xreq->context);
}