minor cleanup
[src/app-framework-binder.git] / src / afb-api-so-v1.c
index a81ec17..ef73b34 100644 (file)
  */
 
 #define _GNU_SOURCE
-#define NO_BINDING_VERBOSE_MACRO
 
+#include <stdio.h>
 #include <string.h>
 #include <dlfcn.h>
 #include <assert.h>
 
 #include <json-c/json.h>
 
-#include <afb/afb-binding.h>
+#include <afb/afb-binding-v1.h>
 
 #include "afb-api.h"
+#include "afb-api-so-v1.h"
 #include "afb-apiset.h"
-#include "afb-svc.h"
-#include "afb-evt.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 "verbose.h"
 
 /*
@@ -48,10 +47,9 @@ static const char afb_api_so_v1_service_event[] = "afbBindingV1ServiceEvent";
  * Description of a binding
  */
 struct api_so_v1 {
-       struct afb_binding *binding;    /* descriptor */
+       struct afb_binding_v1 *binding; /* descriptor */
        void *handle;                   /* context of dlopen */
-       struct afb_svc *service;        /* handler for service started */
-       struct afb_ditf ditf;           /* daemon interface */
+       struct afb_export *export;      /* export */
 };
 
 static const struct afb_verb_desc_v1 *search(struct api_so_v1 *desc, const char *name)
@@ -70,114 +68,168 @@ static void call_cb(void *closure, struct afb_xreq *xreq)
        struct api_so_v1 *desc = closure;
 
        verb = search(desc, xreq->verb);
-       if (!verb)
-               afb_xreq_fail_unknown_verb(xreq);
-       else
-               if (!xreq_session_check_apply(xreq, verb->session))
-                       afb_xreq_call(xreq, verb->callback);
+       afb_xreq_call_verb_v1(xreq, verb);
 }
 
 static int service_start_cb(void *closure, int share_session, int onneed, struct afb_apiset *apiset)
 {
+       int rc;
        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) {
+       if (afb_export_is_started(desc->export)) {
                /* not an error when onneed */
                if (onneed != 0)
-                       return 0;
+                       goto done;
 
                /* already started: it is an error */
-               ERROR("Service %s already started", desc->binding->v1.prefix);
+               ERROR("Service %s already started", afb_export_apiname(desc->export));
                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;
+       onevent = dlsym(desc->handle, afb_api_so_v1_service_event);
 
-               /* no initialisation method */
-               ERROR("Binding %s is not a service", desc->binding->v1.prefix);
-               return -1;
+       /* unshare the session if asked */
+       if (!share_session) {
+               rc = afb_export_unshare_session(desc->export);
+               if (rc < 0) {
+                       ERROR("Can't unshare the session for %s", afb_export_apiname(desc->export));
+                       return -1;
+               }
        }
 
-       /* get the event handler if any */
-       onevent = dlsym(desc->handle, afb_api_so_v1_service_event);
-       desc->service = afb_svc_create(apiset, share_session, init, onevent);
-       if (desc->service == NULL) {
-               /* starting error */
-               ERROR("Starting service %s failed", desc->binding->v1.prefix);
+       /* set event handling */
+       rc = afb_export_handle_events(desc->export, onevent);
+       if (rc < 0) {
+               ERROR("Can't set event handler for %s", afb_export_apiname(desc->export));
                return -1;
        }
 
+       /* Starts the service */
+       rc = afb_export_start_v1(desc->export, init);
+       if (rc < 0) {
+               /* initialisation error */
+               ERROR("Initialisation of service %s failed (%d): %m", afb_export_apiname(desc->export), rc);
+               return rc;
+       }
+
+done:
        return 0;
 }
 
 static void update_hooks_cb(void *closure)
 {
        struct api_so_v1 *desc = closure;
-       afb_ditf_update_hook(&desc->ditf);
+       afb_export_update_hook(desc->export);
 }
 
 static int get_verbosity_cb(void *closure)
 {
        struct api_so_v1 *desc = closure;
-       return desc->ditf.interface.verbosity;
+       return afb_export_verbosity_get(desc->export);
 }
 
 static void set_verbosity_cb(void *closure, int level)
 {
        struct api_so_v1 *desc = closure;
-       desc->ditf.interface.verbosity = level;
+       afb_export_verbosity_set(desc->export, level);
 }
 
-struct json_object *describe_cb(void *closure)
+static struct json_object *addperm(struct json_object *o, struct json_object *x)
 {
-       struct api_so_v1 *desc = closure;
+       struct json_object *a;
+
+       if (!o)
+               return x;
+
+       if (!json_object_object_get_ex(o, "allOf", &a)) {
+               a = json_object_new_array();
+               json_object_array_add(a, o);
+               o = json_object_new_object();
+               json_object_object_add(o, "allOf", a);
+       }
+       json_object_array_add(a, x);
+       return o;
+}
+
+static struct json_object *addperm_key_val(struct json_object *o, const char *key, struct json_object *val)
+{
+       struct json_object *x = json_object_new_object();
+       json_object_object_add(x, key, val);
+       return addperm(o, x);
+}
+
+static struct json_object *addperm_key_valstr(struct json_object *o, const char *key, const char *val)
+{
+       return addperm_key_val(o, key, json_object_new_string(val));
+}
+
+static struct json_object *addperm_key_valint(struct json_object *o, const char *key, int val)
+{
+       return addperm_key_val(o, key, json_object_new_int(val));
+}
+
+static struct json_object *make_description_openAPIv3(struct api_so_v1 *desc)
+{
+       char buffer[256];
        const struct afb_verb_desc_v1 *verb;
-       struct json_object *r, *v, *f, *a;
+       struct json_object *r, *f, *a, *i, *p, *g;
 
        r = json_object_new_object();
-       json_object_object_add(r, "version", json_object_new_int(1));
-       json_object_object_add(r, "info", json_object_new_string(desc->binding->v1.info));
-       v = json_object_new_object();
-       json_object_object_add(r, "verbs", v);
+       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(afb_export_apiname(desc->export)));
+       json_object_object_add(i, "version", json_object_new_string("0.0.0"));
+       json_object_object_add(i, "description", json_object_new_string(desc->binding->v1.info ?: afb_export_apiname(desc->export)));
+
+       p = json_object_new_object();
+       json_object_object_add(r, "paths", p);
        verb = desc->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();
-               a = json_object_new_array();
-               json_object_object_add(f, "name", json_object_new_string(verb->name));
-               json_object_object_add(f, "info", json_object_new_string(verb->info));
-               if (verb->session & AFB_SESSION_CLOSE)
-                       json_object_array_add(a, json_object_new_string("session-close"));
-               if (verb->session & AFB_SESSION_RENEW)
-                       json_object_array_add(a, json_object_new_string("session-renew"));
-               if (verb->session & AFB_SESSION_CHECK)
-                       json_object_array_add(a, json_object_new_string("session-check"));
-               if (verb->session & AFB_SESSION_LOA_EQ) {
-                       const char *rel = "?";
-                       char buffer[80];
-                       switch (verb->session & AFB_SESSION_LOA_EQ) {
-                       case AFB_SESSION_LOA_GE: rel = ">="; break;
-                       case AFB_SESSION_LOA_LE: rel = "<="; break;
-                       case AFB_SESSION_LOA_EQ: rel = "=="; break;
-                       }
-                       snprintf(buffer, sizeof buffer, "LOA%s%d", rel, (int)((verb->session >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK));
-                       json_object_array_add(a, json_object_new_string(buffer));
-               }
-               json_object_object_add(f, "flags", a);
-               json_object_object_add(v, verb->name, f);
+               json_object_object_add(p, buffer, f);
+               g = json_object_new_object();
+               json_object_object_add(f, "get", g);
+
+               a = NULL;
+               if (verb->session & AFB_SESSION_CLOSE_V1)
+                       a = addperm_key_valstr(a, "session", "close");
+               if (verb->session & AFB_SESSION_CHECK_V1)
+                       a = addperm_key_valstr(a, "session", "check");
+               if (verb->session & AFB_SESSION_RENEW_V1)
+                       a = addperm_key_valstr(a, "token", "refresh");
+               if (verb->session & AFB_SESSION_LOA_MASK_V1)
+                       a = addperm_key_valint(a, "LOA", (verb->session >> AFB_SESSION_LOA_SHIFT_V1) & AFB_SESSION_LOA_MASK_V1);
+               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 r;
 }
 
+static struct json_object *describe_cb(void *closure)
+{
+       struct api_so_v1 *desc = closure;
+
+       return make_description_openAPIv3(desc);
+}
+
 static struct afb_api_itf so_v1_api_itf = {
        .call = call_cb,
        .service_start = service_start_cb,
@@ -190,8 +242,9 @@ static struct afb_api_itf so_v1_api_itf = {
 int afb_api_so_v1_add(const char *path, void *handle, struct afb_apiset *apiset)
 {
        struct api_so_v1 *desc;
-       struct afb_binding *(*register_function) (const struct afb_binding_interface *interface);
+       struct afb_binding_v1 *(*register_function) (const struct afb_binding_interface_v1 *interface);
        struct afb_api afb_api;
+       struct afb_export *export;
 
        /* retrieves the register function */
        register_function = dlsym(handle, afb_api_so_v1_register);
@@ -200,60 +253,62 @@ int afb_api_so_v1_add(const char *path, void *handle, struct afb_apiset *apiset)
        INFO("binding [%s] is a valid AFB binding V1", path);
 
        /* allocates the description */
+       export = afb_export_create_v1(path);
        desc = calloc(1, sizeof *desc);
-       if (desc == NULL) {
+       if (desc == NULL || export == NULL) {
                ERROR("out of memory");
                goto error;
        }
+       desc->export = export;
        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);
+       INFO("binding [%s] calling registering function %s", path, afb_api_so_v1_register);
+       desc->binding = afb_export_register_v1(desc->export, register_function);
        if (desc->binding == NULL) {
                ERROR("binding [%s] register function failed. continuing...", path);
-               goto error2;
+               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;
+               goto error;
        }
        if (desc->binding->v1.prefix == NULL || *desc->binding->v1.prefix == 0) {
                ERROR("binding [%s] bad prefix...", path);
-               goto error2;
+               goto error;
        }
        if (!afb_api_is_valid_name(desc->binding->v1.prefix)) {
                ERROR("binding [%s] invalid prefix...", path);
-               goto error2;
+               goto error;
        }
        if (desc->binding->v1.info == NULL || *desc->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;
+               goto error;
        }
 
        /* records the binding */
-       afb_ditf_rename(&desc->ditf, desc->binding->v1.prefix);
+       if (!strcmp(path, afb_export_apiname(desc->export)))
+               afb_export_rename(desc->export, desc->binding->v1.prefix);
        afb_api.closure = desc;
        afb_api.itf = &so_v1_api_itf;
-       if (afb_apiset_add(apiset, desc->binding->v1.prefix, afb_api) < 0) {
+       afb_api.noconcurrency = 0;
+       if (afb_apiset_add(apiset, afb_export_apiname(desc->export), afb_api) < 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(desc->export));
        return 1;
 
-error2:
-       free(desc);
 error:
+       afb_export_destroy(export);
+       free(desc);
+
        return -1;
 }