#include <string.h> #include <json-c/json.h> #define AFB_BINDING_VERSION 3 #include <afb/afb-binding.h> afb_event_t event_login, event_logout; void login(afb_req_t req) { json_object *args, *user, *passwd; char *usr; args = afb_req_json(req); 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)); afb_req_reply(req, NULL, "bad-request", NULL); } else if (afb_req_context_get(req)) { AFB_REQ_ERROR(req, "login, bad state, logout first"); afb_req_reply(req, NULL, "bad-state", NULL); } else if (strcmp(json_object_get_string(passwd), "please")) { AFB_REQ_ERROR(req, "login, unauthorized: %s", json_object_get_string(args)); afb_req_reply(req, NULL, "unauthorized", NULL); } else { usr = strdup(json_object_get_string(user)); AFB_REQ_NOTICE(req, "login user: %s", usr); afb_req_session_set_LOA(req, 1); afb_req_context_set(req, usr, free); afb_req_reply(req, NULL, NULL, NULL); afb_event_push(event_login, json_object_new_string(usr)); } } void action(afb_req_t req) { json_object *args, *val; char *usr; args = afb_req_json(req); usr = afb_req_context_get(req); 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); afb_req_subscribe(req, event_login); afb_req_subscribe(req, event_logout); } else { AFB_REQ_NOTICE(req, "user %s unsubscribes to events", usr); afb_req_unsubscribe(req, event_login); afb_req_unsubscribe(req, event_logout); } } afb_req_reply(req, json_object_get(args), NULL, NULL); } void logout(afb_req_t req) { char *usr; usr = afb_req_context_get(req); AFB_REQ_NOTICE(req, "login user %s out", usr); afb_event_push(event_logout, json_object_new_string(usr)); afb_req_session_set_LOA(req, 0); afb_req_context_clear(req); afb_req_reply(req, NULL, NULL, NULL); } int preinit(afb_api_t api) { AFB_API_NOTICE(api, "preinit"); return 0; } int init(afb_api_t api) { AFB_API_NOTICE(api, "init"); event_login = afb_api_make_event(api, "login"); event_logout = afb_api_make_event(api, "logout"); if (afb_event_is_valid(event_login) && afb_event_is_valid(event_logout)) return 0; AFB_API_ERROR(api, "Can't create events"); return -1; } const afb_verb_t verbs[] = { { .verb="login", .callback=login }, { .verb="action", .callback=action, .session=AFB_SESSION_LOA_1 }, { .verb="logout", .callback=logout, .session=AFB_SESSION_LOA_1 }, { .verb=NULL } }; const afb_binding_t afbBindingExport = { .api = "tuto-2", .specification = NULL, .verbs = verbs, .preinit = preinit, .init = init, .noconcurrency = 0 };