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#include <string>
#include <string.h>
#include <json-c/json.h>
#define AFB_BINDING_VERSION 3
#include <afb/afb-binding>
afb::event event_login, event_logout;
class session
{
private:
std::string user_;
public:
session(const char *user) : user_(user) {}
~session() {}
operator const char *() const { return user_.c_str(); }
};
void login(afb::req req)
{
json_object *args, *user, *passwd;
const char *usr;
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 = json_object_get_string(user);
AFB_REQ_NOTICE(req, "login user: %s", usr);
req.context<session>().set(new session(usr));
req.session_set_LOA(1);
req.success();
event_login.push(json_object_new_string(usr));
}
}
void action(afb::req req)
{
json_object *args, *val;
session &usr = req.context<session>();
args = req.json();
AFB_REQ_NOTICE(req, "action for user %s: %s", (const char*)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", (const char*)usr);
req.subscribe(event_login);
req.subscribe(event_logout);
} else {
AFB_REQ_NOTICE(req, "user %s unsubscribes to events", (const char*)usr);
req.unsubscribe(event_login);
req.unsubscribe(event_logout);
}
}
req.success(json_object_get(args));
}
void logout(afb::req req)
{
session &usr = req.context<session>();
AFB_REQ_NOTICE(req, "login user %s out", (const char*)usr);
event_logout.push(json_object_new_string((const char*)usr));
req.session_set_LOA(0);
req.context<session>().clear();
req.success();
}
int init(afb_api_t api)
{
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_t 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_t afbBindingExport = afb::binding("tuto-3", verbs, "third tutorial: C++", init);
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