Update copyright dates
[src/app-framework-binder.git] / src / afb-api-so-v1.c
index cb61019..66de002 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2016, 2017 "IoT.bzh"
+ * Copyright (C) 2015-2020 "IoT.bzh"
  * Author José Bollo <jose.bollo@iot.bzh>
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * limitations under the License.
  */
 
+#if WITH_LEGACY_BINDING_V1 && WITH_DYNAMIC_BINDING
+
 #define _GNU_SOURCE
-#define NO_BINDING_VERBOSE_MACRO
 
+#include <stdio.h>
 #include <string.h>
 #include <dlfcn.h>
 #include <assert.h>
+#include <stdarg.h>
 
-#include <afb/afb-binding.h>
+#include <json-c/json.h>
+#include <afb/afb-binding-v1.h>
 
-#include "afb-apis.h"
-#include "afb-svc.h"
-#include "afb-evt.h"
+#include "afb-api.h"
+#include "afb-api-so-v1.h"
+#include "afb-apiset.h"
+#include "afb-export.h"
 #include "afb-common.h"
 #include "afb-context.h"
 #include "afb-api-so.h"
 #include "afb-xreq.h"
-#include "afb-ditf.h"
+#include "afb-auth.h"
 #include "verbose.h"
 
 /*
@@ -41,155 +46,137 @@ static const char afb_api_so_v1_register[] = "afbBindingV1Register";
 static const char afb_api_so_v1_service_init[] = "afbBindingV1ServiceInit";
 static const char afb_api_so_v1_service_event[] = "afbBindingV1ServiceEvent";
 
-/*
- * Description of a binding
- */
-struct api_so_v1 {
-       struct afb_binding *binding;    /* descriptor */
-       void *handle;                   /* context of dlopen */
-       struct afb_svc *service;        /* handler for service started */
-       struct afb_ditf ditf;           /* daemon interface */
-};
-
-static const struct afb_verb_desc_v1 *search(struct api_so_v1 *desc, const char *name)
+static const struct afb_verb_desc_v1 *search(struct afb_binding_v1 *binding, const char *name)
 {
        const struct afb_verb_desc_v1 *verb;
 
-       verb = desc->binding->v1.verbs;
+       verb = binding->v1.verbs;
        while (verb->name && strcasecmp(verb->name, name))
                verb++;
        return verb->name ? verb : NULL;
 }
 
-static void call_cb(void *closure, struct afb_xreq *xreq)
+void afb_api_so_v1_process_call(struct afb_binding_v1 *binding, struct afb_xreq *xreq)
 {
        const struct afb_verb_desc_v1 *verb;
-       struct api_so_v1 *desc = closure;
 
-       verb = search(desc, xreq->verb);
-       if (!verb)
-               afb_xreq_fail_f(xreq, "unknown-verb", "verb %s unknown within api %s", xreq->verb, desc->binding->v1.prefix);
-       else
-               afb_xreq_call(xreq, verb->session, verb->callback);
+       verb = search(binding, xreq->request.called_verb);
+       afb_xreq_call_verb_v1(xreq, verb);
 }
 
-static int service_start_cb(void *closure, int share_session, int onneed)
+struct json_object *afb_api_so_v1_make_description_openAPIv3(struct afb_binding_v1 *binding, const char *apiname)
 {
-       int (*init)(struct afb_service service);
-       void (*onevent)(const char *event, struct json_object *object);
-
-       struct api_so_v1 *desc = closure;
-
-       /* check state */
-       if (desc->service != NULL) {
-               /* not an error when onneed */
-               if (onneed != 0)
-                       return 0;
-
-               /* already started: it is an error */
-               ERROR("Service %s already started", desc->binding->v1.prefix);
-               return -1;
-       }
-
-       /* get the initialisation */
-       init = dlsym(desc->handle, afb_api_so_v1_service_init);
-       if (init == NULL) {
-               /* not an error when onneed */
-               if (onneed != 0)
-                       return 0;
-
-               /* no initialisation method */
-               ERROR("Binding %s is not a service", desc->binding->v1.prefix);
-               return -1;
-       }
-
-       /* get the event handler if any */
-       onevent = dlsym(desc->handle, afb_api_so_v1_service_event);
-       desc->service = afb_svc_create(share_session, init, onevent);
-       if (desc->service == NULL) {
-               /* starting error */
-               ERROR("Starting service %s failed", desc->binding->v1.prefix);
-               return -1;
+       char buffer[256];
+       const struct afb_verb_desc_v1 *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(binding->v1.info ?: apiname));
+
+       p = json_object_new_object();
+       json_object_object_add(r, "paths", p);
+       verb = binding->v1.verbs;
+       while (verb->name) {
+               buffer[0] = '/';
+               strncpy(buffer + 1, verb->name, 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_x1(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++;
        }
-
-       return 0;
+       return r;
 }
 
-static void update_hooks_cb(void *closure)
+int afb_api_so_v1_add(const char *path, void *handle, struct afb_apiset *declare_set, struct afb_apiset * call_set)
 {
-       struct api_so_v1 *desc = closure;
-       afb_ditf_update_hook(&desc->ditf);
-}
-
-int afb_api_so_v1_add(const char *path, void *handle)
-{
-       struct api_so_v1 *desc;
-       struct afb_binding *(*register_function) (const struct afb_binding_interface *interface);
-       struct afb_api afb_api;
+       struct afb_binding_v1 *binding; /* descriptor */
+       struct afb_binding_v1 *(*register_function) (const struct afb_binding_interface_v1 *interface);
+       int (*init)(struct afb_service_x1 service);
+       void (*onevent)(const char *event, struct json_object *object);
+       struct afb_export *export;
 
        /* retrieves the register function */
        register_function = dlsym(handle, afb_api_so_v1_register);
        if (!register_function)
                return 0;
+
        INFO("binding [%s] is a valid AFB binding V1", path);
 
        /* allocates the description */
-       desc = calloc(1, sizeof *desc);
-       if (desc == NULL) {
-               ERROR("out of memory");
+       init = dlsym(handle, afb_api_so_v1_service_init);
+       onevent = dlsym(handle, afb_api_so_v1_service_event);
+       export = afb_export_create_v1(declare_set, call_set, path, init, onevent, path);
+       if (export == NULL) {
+               ERROR("binding [%s] creation failure...", path);
                goto error;
        }
-       desc->handle = handle;
-
-       /* init the interface */
-       afb_ditf_init(&desc->ditf, path);
-
-       /* init the binding */
-       NOTICE("binding [%s] calling registering function %s", path, afb_api_so_v1_register);
-       desc->binding = register_function(&desc->ditf.interface);
-       if (desc->binding == NULL) {
-               ERROR("binding [%s] register function failed. continuing...", path);
-               goto error2;
+       binding = afb_export_register_v1(export, register_function);
+       if (binding == NULL) {
+               ERROR("binding [%s] register failure...", path);
+               goto error;
        }
 
        /* check the returned structure */
-       if (desc->binding->type != AFB_BINDING_VERSION_1) {
-               ERROR("binding [%s] invalid type %d...", path, desc->binding->type);
-               goto error2;
+       if (binding->type != AFB_BINDING_VERSION_1) {
+               ERROR("binding [%s] invalid type %d...", path, binding->type);
+               goto error;
        }
-       if (desc->binding->v1.prefix == NULL || *desc->binding->v1.prefix == 0) {
+       if (binding->v1.prefix == NULL || *binding->v1.prefix == 0) {
                ERROR("binding [%s] bad prefix...", path);
-               goto error2;
+               goto error;
        }
-       if (!afb_apis_is_valid_api_name(desc->binding->v1.prefix)) {
+       if (!afb_api_is_valid_name(binding->v1.prefix)) {
                ERROR("binding [%s] invalid prefix...", path);
-               goto error2;
+               goto error;
        }
-       if (desc->binding->v1.info == NULL || *desc->binding->v1.info == 0) {
+       if (binding->v1.info == NULL || *binding->v1.info == 0) {
                ERROR("binding [%s] bad description...", path);
-               goto error2;
+               goto error;
        }
-       if (desc->binding->v1.verbs == NULL) {
-               ERROR("binding [%s] no APIs...", path);
-               goto error2;
+       if (binding->v1.verbs == NULL) {
+               ERROR("binding [%s] no verbs...", path);
+               goto error;
        }
 
        /* records the binding */
-       afb_ditf_rename(&desc->ditf, desc->binding->v1.prefix);
-       afb_api.closure = desc;
-       afb_api.call = call_cb;
-       afb_api.service_start = service_start_cb;
-       afb_api.update_hooks = update_hooks_cb;
-       if (afb_apis_add(desc->binding->v1.prefix, afb_api) < 0) {
+       if (!strcmp(path, afb_export_apiname(export))) {
+               if (afb_export_rename(export, binding->v1.prefix) < 0) {
+                       ERROR("binding [%s] can't be renamed to %s", path, binding->v1.prefix);
+                       goto error;
+               }
+       }
+
+       if (afb_export_declare(export, 0) < 0) {
                ERROR("binding [%s] can't be registered...", path);
-               goto error2;
+               goto error;
        }
-       NOTICE("binding %s loaded with API prefix %s", path, desc->binding->v1.prefix);
+       INFO("binding %s loaded with API prefix %s", path, afb_export_apiname(export));
+       afb_export_unref(export);
        return 1;
 
-error2:
-       free(desc);
 error:
+       afb_export_unref(export);
+
        return -1;
 }
 
+#endif
+