--- /dev/null
+/*
+ * Copyright (C) 2016, 2017, 2018 "IoT.bzh"
+ * Author José Bollo <jose.bollo@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include <fnmatch.h>
+
+#include <json-c/json.h>
+
+#define AFB_BINDING_VERSION 0
+#include <afb/afb-binding.h>
+
+#include "afb-api.h"
+#include "afb-api-v3.h"
+#include "afb-apiset.h"
+#include "afb-auth.h"
+#include "afb-export.h"
+#include "afb-xreq.h"
+#include "verbose.h"
+
+/*
+ * Description of a binding
+ */
+struct afb_api_v3 {
+ int refcount;
+ int count;
+ struct afb_verb_v3 **verbs;
+ const struct afb_verb_v2 *verbsv2;
+ const struct afb_verb_v3 *verbsv3;
+ struct afb_export *export;
+ const char *info;
+};
+
+static const char nulchar = 0;
+
+static int verb_name_compare(const struct afb_verb_v3 *verb, const char *name)
+{
+ return verb->glob
+ ? fnmatch(verb->verb, name, FNM_NOESCAPE|FNM_PATHNAME|FNM_CASEFOLD|FNM_PERIOD)
+ : strcasecmp(verb->verb, name);
+}
+
+static struct afb_verb_v3 *search_dynamic_verb(struct afb_api_v3 *api, const char *name)
+{
+ struct afb_verb_v3 **v, **e, *i;
+
+ v = api->verbs;
+ e = &v[api->count];
+ while (v != e) {
+ i = *v;
+ if (!verb_name_compare(i, name))
+ return i;
+ v++;
+ }
+ return 0;
+}
+
+void afb_api_v3_process_call(struct afb_api_v3 *api, struct afb_xreq *xreq)
+{
+ const struct afb_verb_v3 *verbsv3;
+ const struct afb_verb_v2 *verbsv2;
+ const char *name;
+
+ name = xreq->request.called_verb;
+
+ /* look first in dynamic set */
+ verbsv3 = search_dynamic_verb(api, name);
+ if (!verbsv3) {
+ /* look then in static set */
+ verbsv3 = api->verbsv3;
+ while (verbsv3) {
+ if (!verbsv3->verb)
+ verbsv3 = 0;
+ else if (!verb_name_compare(verbsv3, name))
+ break;
+ else
+ verbsv3++;
+ }
+ }
+ /* is it a v3 verb ? */
+ if (verbsv3) {
+ /* yes */
+ xreq->request.vcbdata = verbsv3->vcbdata;
+ afb_xreq_call_verb_v3(xreq, verbsv3);
+ return;
+ }
+
+ /* look in legacy set */
+ verbsv2 = api->verbsv2;
+ if (verbsv2) {
+ while (verbsv2->verb) {
+ if (strcasecmp(verbsv2->verb, name))
+ verbsv2++;
+ else {
+ afb_xreq_call_verb_v2(xreq, verbsv2);
+ return;
+ }
+ }
+ }
+
+ afb_xreq_reply_unknown_verb(xreq);
+}
+
+struct json_object *afb_api_v3_make_description_openAPIv3(struct afb_api_v3 *api, const char *apiname)
+{
+ char buffer[256];
+ struct afb_verb_v3 **iter, **end, *verb;
+ struct json_object *r, *f, *a, *i, *p, *g;
+
+ r = json_object_new_object();
+ json_object_object_add(r, "openapi", json_object_new_string("3.0.0"));
+
+ i = json_object_new_object();
+ json_object_object_add(r, "info", i);
+ json_object_object_add(i, "title", json_object_new_string(apiname));
+ json_object_object_add(i, "version", json_object_new_string("0.0.0"));
+ json_object_object_add(i, "description", json_object_new_string(api->info));
+
+ p = json_object_new_object();
+ json_object_object_add(r, "paths", p);
+ iter = api->verbs;
+ end = iter + api->count;
+ while (iter != end) {
+ verb = *iter++;
+ buffer[0] = '/';
+ strncpy(buffer + 1, verb->verb, sizeof buffer - 1);
+ buffer[sizeof buffer - 1] = 0;
+ f = json_object_new_object();
+ json_object_object_add(p, buffer, f);
+ g = json_object_new_object();
+ json_object_object_add(f, "get", g);
+
+ a = afb_auth_json_v2(verb->auth, verb->session);
+ if (a)
+ json_object_object_add(g, "x-permissions", a);
+
+ a = json_object_new_object();
+ json_object_object_add(g, "responses", a);
+ f = json_object_new_object();
+ json_object_object_add(a, "200", f);
+ json_object_object_add(f, "description", json_object_new_string(verb->info?:verb->verb));
+ }
+ return r;
+}
+
+struct afb_api_v3 *afb_api_v3_create(
+ struct afb_apiset *declare_set,
+ struct afb_apiset *call_set,
+ const char *apiname,
+ const char *info,
+ int noconcurrency,
+ int (*preinit)(void*, struct afb_api_x3 *),
+ void *closure,
+ int copy_info
+)
+{
+ struct afb_api_v3 *api;
+
+ /* allocates the description */
+ api = calloc(1, sizeof *api + (copy_info && info ? 1 + strlen(info) : 0));
+ if (!api)
+ goto oom;
+ api->refcount = 1;
+ if (!info)
+ api->info = &nulchar;
+ else if (copy_info)
+ api->info = strcpy((char*)(api + 1), info);
+ else
+ api->info = info;
+
+ api->export = afb_export_create_v3(declare_set, call_set, apiname, api);
+ if (!api->export)
+ goto oom2;
+
+ if (afb_export_declare(api->export, noconcurrency) < 0)
+ goto oom3;
+
+ if (preinit && afb_export_preinit_x3(api->export, preinit, closure) < 0)
+ goto oom4;
+
+ return api;
+
+oom4:
+ afb_export_undeclare(api->export);
+oom3:
+ afb_export_unref(api->export);
+oom2:
+ free(api);
+oom:
+ ERROR("out of memory");
+ return NULL;
+}
+
+struct afb_api_v3 *afb_api_v3_addref(struct afb_api_v3 *api)
+{
+ if (api)
+ __atomic_add_fetch(&api->refcount, 1, __ATOMIC_RELAXED);
+ return api;
+}
+
+void afb_api_v3_unref(struct afb_api_v3 *api)
+{
+ if (api && !__atomic_sub_fetch(&api->refcount, 1, __ATOMIC_RELAXED)) {
+ afb_export_destroy(api->export);
+ free(api);
+ }
+}
+
+struct afb_export *afb_api_v3_export(struct afb_api_v3 *api)
+{
+ return api->export;
+}
+
+void afb_api_v3_set_verbs_v2(
+ struct afb_api_v3 *api,
+ const struct afb_verb_v2 *verbs)
+{
+ api->verbsv2 = verbs;
+}
+
+void afb_api_v3_set_verbs_v3(
+ struct afb_api_v3 *api,
+ const struct afb_verb_v3 *verbs)
+{
+ api->verbsv3 = verbs;
+}
+
+int afb_api_v3_add_verb(
+ struct afb_api_v3 *api,
+ const char *verb,
+ const char *info,
+ void (*callback)(struct afb_req_x2 *req),
+ void *vcbdata,
+ const struct afb_auth *auth,
+ uint16_t session,
+ int glob)
+{
+ struct afb_verb_v3 *v, **vv;
+ char *txt;
+ int i;
+
+ for (i = 0 ; i < api->count ; i++) {
+ v = api->verbs[i];
+ if (glob == v->glob && !strcasecmp(verb, v->verb)) {
+ /* refuse to redefine a dynamic verb */
+ errno = EEXIST;
+ return -1;
+ }
+ }
+
+ vv = realloc(api->verbs, (1 + api->count) * sizeof *vv);
+ if (!vv)
+ goto oom;
+ api->verbs = vv;
+
+ v = malloc(sizeof *v + (1 + strlen(verb)) + (info ? 1 + strlen(info) : 0));
+ if (!v)
+ goto oom;
+
+ v->callback = callback;
+ v->vcbdata = vcbdata;
+ v->auth = auth;
+ v->session = session;
+ v->glob = !!glob;
+
+ txt = (char*)(v + 1);
+ v->verb = txt;
+ txt = stpcpy(txt, verb);
+ if (!info)
+ v->info = NULL;
+ else {
+ v->info = ++txt;
+ strcpy(txt, info);
+ }
+
+ api->verbs[api->count++] = v;
+ return 0;
+oom:
+ errno = ENOMEM;
+ return -1;
+}
+
+int afb_api_v3_del_verb(
+ struct afb_api_v3 *api,
+ const char *verb,
+ void **vcbdata)
+{
+ struct afb_verb_v3 **v, **e, *i;
+
+ v = api->verbs;
+ e = &v[api->count];
+ while (v != e) {
+ i = *v++;
+ if (!strcasecmp(i->verb, verb)) {
+ api->count--;
+ if (vcbdata)
+ *vcbdata = i->vcbdata;
+ if (v != e)
+ *--v = *--e;
+ free(i);
+ return 0;
+ }
+ }
+
+ errno = ENOENT;
+ return -1;
+}
+
+int afb_api_v3_set_binding_fields(const struct afb_binding_v3 *desc, struct afb_api_x3 *api)
+{
+ int rc = 0;
+ if (desc->verbs)
+ rc = afb_api_x3_set_verbs_v3(api, desc->verbs);
+ if (!rc && desc->onevent)
+ rc = afb_api_x3_on_event(api, desc->onevent);
+ if (!rc && desc->init)
+ rc = afb_api_x3_on_init(api, desc->init);
+ if (!rc && desc->provide_class)
+ rc = afb_api_x3_provide_class(api, desc->provide_class);
+ if (!rc && desc->require_class)
+ rc = afb_api_x3_require_class(api, desc->require_class);
+ if (!rc && desc->require_api)
+ rc = afb_api_x3_require_api(api, desc->require_api, 1);
+ return rc;
+}
+
+static int init_binding(void *closure, struct afb_api_x3 *api)
+{
+ const struct afb_binding_v3 *desc = closure;
+ int rc = afb_api_v3_set_binding_fields(desc, api);
+ if (!rc && desc->preinit)
+ rc = desc->preinit(api);
+ return rc;
+}
+
+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)
+{
+ return afb_api_v3_create(declare_set, call_set, desc->api, desc->info, desc->noconcurrency, init_binding, (void*)desc, 0);
+}
+
Code Review / src / app-framework-binder.git / blobdiff