2 * Copyright (C) 2016, 2017, 2018 "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>
28 #define AFB_BINDING_VERSION 0
29 #include <afb/afb-binding.h>
32 #include "afb-api-v3.h"
33 #include "afb-apiset.h"
35 #include "afb-export.h"
40 * Description of a binding
45 struct afb_verb_v3 **verbs;
46 const struct afb_verb_v2 *verbsv2;
47 const struct afb_verb_v3 *verbsv3;
48 struct afb_export *export;
52 static const char nulchar = 0;
54 static int verb_name_compare(const struct afb_verb_v3 *verb, const char *name)
57 ? fnmatch(verb->verb, name, FNM_NOESCAPE|FNM_PATHNAME|FNM_CASEFOLD|FNM_PERIOD)
58 : strcasecmp(verb->verb, name);
61 static struct afb_verb_v3 *search_dynamic_verb(struct afb_api_v3 *api, const char *name)
63 struct afb_verb_v3 **v, **e, *i;
69 if (!verb_name_compare(i, name))
76 void afb_api_v3_process_call(struct afb_api_v3 *api, struct afb_xreq *xreq)
78 const struct afb_verb_v3 *verbsv3;
79 const struct afb_verb_v2 *verbsv2;
82 name = xreq->request.called_verb;
84 /* look first in dynamic set */
85 verbsv3 = search_dynamic_verb(api, name);
87 /* look then in static set */
88 verbsv3 = api->verbsv3;
92 else if (!verb_name_compare(verbsv3, name))
98 /* is it a v3 verb ? */
101 xreq->request.vcbdata = verbsv3->vcbdata;
102 afb_xreq_call_verb_v3(xreq, verbsv3);
106 /* look in legacy set */
107 verbsv2 = api->verbsv2;
109 while (verbsv2->verb) {
110 if (strcasecmp(verbsv2->verb, name))
113 afb_xreq_call_verb_v2(xreq, verbsv2);
119 afb_xreq_reply_unknown_verb(xreq);
122 struct json_object *afb_api_v3_make_description_openAPIv3(struct afb_api_v3 *api, const char *apiname)
125 struct afb_verb_v3 **iter, **end, *verb;
126 struct json_object *r, *f, *a, *i, *p, *g;
128 r = json_object_new_object();
129 json_object_object_add(r, "openapi", json_object_new_string("3.0.0"));
131 i = json_object_new_object();
132 json_object_object_add(r, "info", i);
133 json_object_object_add(i, "title", json_object_new_string(apiname));
134 json_object_object_add(i, "version", json_object_new_string("0.0.0"));
135 json_object_object_add(i, "description", json_object_new_string(api->info));
137 p = json_object_new_object();
138 json_object_object_add(r, "paths", p);
140 end = iter + api->count;
141 while (iter != end) {
144 strncpy(buffer + 1, verb->verb, sizeof buffer - 1);
145 buffer[sizeof buffer - 1] = 0;
146 f = json_object_new_object();
147 json_object_object_add(p, buffer, f);
148 g = json_object_new_object();
149 json_object_object_add(f, "get", g);
151 a = afb_auth_json_v2(verb->auth, verb->session);
153 json_object_object_add(g, "x-permissions", a);
155 a = json_object_new_object();
156 json_object_object_add(g, "responses", a);
157 f = json_object_new_object();
158 json_object_object_add(a, "200", f);
159 json_object_object_add(f, "description", json_object_new_string(verb->info?:verb->verb));
164 struct afb_api_v3 *afb_api_v3_create(
165 struct afb_apiset *declare_set,
166 struct afb_apiset *call_set,
170 int (*preinit)(void*, struct afb_api_x3 *),
175 struct afb_api_v3 *api;
177 /* allocates the description */
178 api = calloc(1, sizeof *api + (copy_info && info ? 1 + strlen(info) : 0));
183 api->info = &nulchar;
185 api->info = strcpy((char*)(api + 1), info);
189 api->export = afb_export_create_v3(declare_set, call_set, apiname, api);
193 if (afb_export_declare(api->export, noconcurrency) < 0)
196 if (preinit && afb_export_preinit_x3(api->export, preinit, closure) < 0)
202 afb_export_undeclare(api->export);
204 afb_export_unref(api->export);
208 ERROR("out of memory");
212 struct afb_api_v3 *afb_api_v3_addref(struct afb_api_v3 *api)
215 __atomic_add_fetch(&api->refcount, 1, __ATOMIC_RELAXED);
219 void afb_api_v3_unref(struct afb_api_v3 *api)
221 if (api && !__atomic_sub_fetch(&api->refcount, 1, __ATOMIC_RELAXED)) {
222 afb_export_destroy(api->export);
227 struct afb_export *afb_api_v3_export(struct afb_api_v3 *api)
232 void afb_api_v3_set_verbs_v2(
233 struct afb_api_v3 *api,
234 const struct afb_verb_v2 *verbs)
236 api->verbsv2 = verbs;
239 void afb_api_v3_set_verbs_v3(
240 struct afb_api_v3 *api,
241 const struct afb_verb_v3 *verbs)
243 api->verbsv3 = verbs;
246 int afb_api_v3_add_verb(
247 struct afb_api_v3 *api,
250 void (*callback)(struct afb_req_x2 *req),
252 const struct afb_auth *auth,
256 struct afb_verb_v3 *v, **vv;
260 for (i = 0 ; i < api->count ; i++) {
262 if (glob == v->glob && !strcasecmp(verb, v->verb)) {
263 /* refuse to redefine a dynamic verb */
269 vv = realloc(api->verbs, (1 + api->count) * sizeof *vv);
274 v = malloc(sizeof *v + (1 + strlen(verb)) + (info ? 1 + strlen(info) : 0));
278 v->callback = callback;
279 v->vcbdata = vcbdata;
281 v->session = session;
284 txt = (char*)(v + 1);
286 txt = stpcpy(txt, verb);
294 api->verbs[api->count++] = v;
301 int afb_api_v3_del_verb(
302 struct afb_api_v3 *api,
306 struct afb_verb_v3 **v, **e, *i;
312 if (!strcasecmp(i->verb, verb)) {
315 *vcbdata = i->vcbdata;
327 int afb_api_v3_set_binding_fields(const struct afb_binding_v3 *desc, struct afb_api_x3 *api)
331 rc = afb_api_x3_set_verbs_v3(api, desc->verbs);
332 if (!rc && desc->onevent)
333 rc = afb_api_x3_on_event(api, desc->onevent);
334 if (!rc && desc->init)
335 rc = afb_api_x3_on_init(api, desc->init);
336 if (!rc && desc->provide_class)
337 rc = afb_api_x3_provide_class(api, desc->provide_class);
338 if (!rc && desc->require_class)
339 rc = afb_api_x3_require_class(api, desc->require_class);
340 if (!rc && desc->require_api)
341 rc = afb_api_x3_require_api(api, desc->require_api, 1);
345 static int init_binding(void *closure, struct afb_api_x3 *api)
347 const struct afb_binding_v3 *desc = closure;
348 int rc = afb_api_v3_set_binding_fields(desc, api);
349 if (!rc && desc->preinit)
350 rc = desc->preinit(api);
354 struct afb_api_v3 *afb_api_v3_from_binding(const struct afb_binding_v3 *desc, struct afb_apiset *declare_set, struct afb_apiset * call_set)
356 return afb_api_v3_create(declare_set, call_set, desc->api, desc->info, desc->noconcurrency, init_binding, (void*)desc, 0);