-/*
- * Description of a binding
- */
-struct api_so_desc {
- struct afb_binding *binding; /* descriptor */
- size_t apilength; /* length of the API name */
- void *handle; /* context of dlopen */
- struct afb_svc *service; /* handler for service started */
- struct afb_binding_interface interface; /* interface for the binding */
-};
-
-static const char binding_register_function_v1[] = "afbBindingV1Register";
-static const char binding_service_init_function_v1[] = "afbBindingV1ServiceInit";
-static const char binding_service_event_function_v1[] = "afbBindingV1ServiceEvent";
-
-static int api_timeout = 15;
-
-static struct afb_event afb_api_so_event_make_cb(void *closure, const char *name);
-static int afb_api_so_event_broadcast_cb(void *closure, const char *name, struct json_object *object);
-static void afb_api_so_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args);
-static int afb_api_so_rootdir_get_fd(void *closure);
-static int afb_api_so_rootdir_open_locale(void *closure, const char *filename, int flags, const char *locale);
-
-static const struct afb_daemon_itf daemon_itf = {
- .event_broadcast = afb_api_so_event_broadcast_cb,
- .get_event_loop = afb_common_get_event_loop,
- .get_user_bus = afb_common_get_user_bus,
- .get_system_bus = afb_common_get_system_bus,
- .vverbose = afb_api_so_vverbose_cb,
- .event_make = afb_api_so_event_make_cb,
- .rootdir_get_fd = afb_api_so_rootdir_get_fd,
- .rootdir_open_locale = afb_api_so_rootdir_open_locale
-};
-
-static struct afb_event afb_api_so_event_make_cb(void *closure, const char *name)
-{
- size_t length;
- char *event;
- struct api_so_desc *desc = closure;
-
- /* makes the event name */
- assert(desc->binding != NULL);
- length = strlen(name);
- event = alloca(length + 2 + desc->apilength);
- memcpy(event, desc->binding->v1.prefix, desc->apilength);
- event[desc->apilength] = '/';
- memcpy(event + desc->apilength + 1, name, length + 1);
-
- /* crate the event */
- return afb_evt_create_event(event);
-}
-
-static int afb_api_so_event_broadcast_cb(void *closure, const char *name, struct json_object *object)
-{
- size_t length;
- char *event;
- struct api_so_desc *desc = closure;
-
- /* makes the event name */
- assert(desc->binding != NULL);
- length = strlen(name);
- event = alloca(length + 2 + desc->apilength);
- memcpy(event, desc->binding->v1.prefix, desc->apilength);
- event[desc->apilength] = '/';
- memcpy(event + desc->apilength + 1, name, length + 1);
-
- return afb_evt_broadcast(event, object);
-}
-
-static void afb_api_so_vverbose_cb(void *closure, int level, const char *file, int line, const char *fmt, va_list args)
-{
- char *p;
- struct api_so_desc *desc = closure;
-
- if (vasprintf(&p, fmt, args) < 0)
- vverbose(level, file, line, fmt, args);
- else {
- verbose(level, file, line, "%s {binding %s}", p, desc->binding->v1.prefix);
- free(p);
- }
-}
-
-static int afb_api_so_rootdir_get_fd(void *closure)
-{
- return afb_common_rootdir_get_fd();
-}
-
-static int afb_api_so_rootdir_open_locale(void *closure, const char *filename, int flags, const char *locale)
-{
- return afb_common_rootdir_open_locale(filename, flags, locale);
-}
-
-static int call_check(struct afb_req req, struct afb_context *context, const struct afb_verb_desc_v1 *verb)
-{
- int stag = (int)verb->session;
-
- if ((stag & (AFB_SESSION_CREATE|AFB_SESSION_CLOSE|AFB_SESSION_RENEW|AFB_SESSION_CHECK|AFB_SESSION_LOA_EQ)) != 0) {
- if (!afb_context_check(context)) {
- afb_context_close(context);
- afb_req_fail(req, "failed", "invalid token's identity");
- return 0;
- }
- }
-
- if ((stag & AFB_SESSION_CREATE) != 0) {
- if (afb_context_check_loa(context, 1)) {
- afb_req_fail(req, "failed", "invalid creation state");
- return 0;
- }
- afb_context_change_loa(context, 1);
- afb_context_refresh(context);
- }
-
- if ((stag & (AFB_SESSION_CREATE | AFB_SESSION_RENEW)) != 0)
- afb_context_refresh(context);
-
- if ((stag & AFB_SESSION_CLOSE) != 0) {
- afb_context_change_loa(context, 0);
- afb_context_close(context);
- }
-
- if ((stag & AFB_SESSION_LOA_GE) != 0) {
- int loa = (stag >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
- if (!afb_context_check_loa(context, loa)) {
- afb_req_fail(req, "failed", "invalid LOA");
- return 0;
- }
- }
-
- if ((stag & AFB_SESSION_LOA_LE) != 0) {
- int loa = (stag >> AFB_SESSION_LOA_SHIFT) & AFB_SESSION_LOA_MASK;
- if (afb_context_check_loa(context, loa + 1)) {
- afb_req_fail(req, "failed", "invalid LOA");
- return 0;
- }
- }
- return 1;
-}
-
-static void call_cb(void *closure, struct afb_req req, struct afb_context *context, const char *strverb, size_t lenverb)
-{
- const struct afb_verb_desc_v1 *verb;
- struct api_so_desc *desc = closure;
-
- verb = desc->binding->v1.verbs;
- while (verb->name && (strncasecmp(verb->name, strverb, lenverb) || verb->name[lenverb]))
- verb++;
- if (!verb->name)
- afb_req_fail_f(req, "unknown-verb", "verb %.*s unknown within api %s", (int)lenverb, strverb, desc->binding->v1.prefix);
- else if (call_check(req, context, verb)) {
- afb_thread_req_call(req, verb->callback, api_timeout, desc);
- }
-}
-
-static int service_start_cb(void *closure, int share_session, int onneed)
-{
- int (*init)(struct afb_service service);
- void (*onevent)(const char *event, struct json_object *object);
-
- struct api_so_desc *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, binding_service_init_function_v1);
- 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, binding_service_event_function_v1);
- 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;
- }
-
- return 0;
-}
-
-void afb_api_so_set_timeout(int to)
-{
- api_timeout = to;
-}
-
-int afb_api_so_add_binding(const char *path)