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-rw-r--r--bindings/tutorials/tuto-2.c100
1 files changed, 100 insertions, 0 deletions
diff --git a/bindings/tutorials/tuto-2.c b/bindings/tutorials/tuto-2.c
new file mode 100644
index 00000000..10797081
--- /dev/null
+++ b/bindings/tutorials/tuto-2.c
@@ -0,0 +1,100 @@
+#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
+}; \ No newline at end of file