Add C++ interface

[src/app-framework-binder.git] / bindings / tutorial / tuto-3.cpp

diff --git a/bindings/tutorial/tuto-3.cpp b/bindings/tutorial/tuto-3.cpp
new file mode 100644 (file)
index 0000000..7400b98
--- /dev/null
+++ b/bindings/tutorial/tuto-3.cpp
@@ -0,0 +1,90 @@
+#include <string.h>
+#include <json-c/json.h>
+
+#include <afb/afb-binding>
+
+afb::event event_login, event_logout;
+
+void login(afb_req r)
+{
+       json_object *args, *user, *passwd;
+       char *usr;
+       afb::req req(r);
+
+       args = req.json();
+       if (!json_object_object_get_ex(args, "user", &user)
+        || !json_object_object_get_ex(args, "password", &passwd)) {
+               AFB_REQ_ERROR(req, "login, bad request: %s", json_object_get_string(args));
+               req.fail("bad-request");
+       } else if (afb_req_context_get(req)) {
+               AFB_REQ_ERROR(req, "login, bad state, logout first");
+               req.fail("bad-state");
+       } else if (strcmp(json_object_get_string(passwd), "please")) {
+               AFB_REQ_ERROR(req, "login, unauthorized: %s", json_object_get_string(args));
+               req.fail("unauthorized");
+       } else {
+               usr = strdup(json_object_get_string(user));
+               AFB_REQ_NOTICE(req, "login user: %s", usr);
+               req.session_set_LOA(1);
+               req.context_set(usr, free);
+               req.success();
+               event_login.push(json_object_new_string(usr));
+       }
+}
+
+void action(afb_req r)
+{
+       json_object *args, *val;
+       char *usr;
+       afb::req req(r);
+
+       args = req.json();
+       usr = (char*)req.context_get();
+       AFB_REQ_NOTICE(req, "action for user %s: %s", usr, json_object_get_string(args));
+       if (json_object_object_get_ex(args, "subscribe", &val)) {
+               if (json_object_get_boolean(val)) {
+                       AFB_REQ_NOTICE(req, "user %s subscribes to events", usr);
+                       req.subscribe(event_login);
+                       req.subscribe(event_logout);
+               } else {
+                       AFB_REQ_NOTICE(req, "user %s unsubscribes to events", usr);
+                       req.unsubscribe(event_login);
+                       req.unsubscribe(event_logout);
+               }
+       }
+       req.success(json_object_get(args));
+}
+
+void logout(afb_req r)
+{
+       char *usr;
+       afb::req req(r);
+
+       usr = (char*)req.context_get();
+       AFB_REQ_NOTICE(req, "login user %s out", usr);
+       event_logout.push(json_object_new_string(usr));
+       req.session_set_LOA(0);
+       req.context_clear();
+       req.success();
+}
+
+int init()
+{
+       AFB_NOTICE("init");
+       event_login = afb_daemon_make_event("login");
+       event_logout = afb_daemon_make_event("logout");
+       if (afb_event_is_valid(event_login) && afb_event_is_valid(event_logout))
+               return 0;
+       AFB_ERROR("Can't create events");
+       return -1;
+}
+
+const afb_verb_v2 verbs[] = {
+       afb::verb("login", login, "log in the system"),
+       afb::verb("action", action, "perform an action", AFB_SESSION_LOA_1),
+       afb::verb("logout", logout, "log out the system", AFB_SESSION_LOA_1),
+       afb::verbend()
+};
+
+const afb_binding_v2 afbBindingV2 = afb::binding("tuto-3", verbs, "third tutorial: C++", init);
+