117 lines
3.3 KiB
Rust
117 lines
3.3 KiB
Rust
/*
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* mCaptcha - A proof of work based DoS protection system
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* Copyright © 2021 Aravinth Manivannan <realravinth@batsense.net>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//! [Master] actor module that manages [MCaptcha] actors
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use std::collections::BTreeMap;
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use actix::dev::*;
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use derive_builder::Builder;
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use crate::mcaptcha::MCaptcha;
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/// This Actor manages the [MCaptcha] actors.
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/// A service can have several [MCaptcha] actors with
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/// varying [Defense][crate::defense::Defense] configurations
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/// so a "master" actor is needed to manage them all
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#[derive(Clone)]
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pub struct Master {
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sites: BTreeMap<String, Addr<MCaptcha>>,
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}
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impl Master {
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/// add [MCaptcha] actor to [Master]
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pub fn add_site(&mut self, details: AddSite) {
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self.sites.insert(details.id, details.addr.to_owned());
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}
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/// create new master
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pub fn new() -> Self {
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Master {
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sites: BTreeMap::new(),
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}
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}
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/// get [MCaptcha] actor from [Master]
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pub fn get_site<'a, 'b>(&'a self, id: &'b str) -> Option<&'a Addr<MCaptcha>> {
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self.sites.get(id)
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}
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}
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impl Actor for Master {
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type Context = Context<Self>;
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}
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/// Message to get an [MCaptcha] actor from master
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#[derive(Message)]
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#[rtype(result = "Option<Addr<MCaptcha>>")]
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pub struct GetSite(pub String);
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impl Handler<GetSite> for Master {
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type Result = MessageResult<GetSite>;
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fn handle(&mut self, m: GetSite, _ctx: &mut Self::Context) -> Self::Result {
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let addr = self.get_site(&m.0);
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if addr.is_none() {
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return MessageResult(None);
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} else {
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return MessageResult(Some(addr.unwrap().clone()));
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}
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}
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}
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/// Message to add an [MCaptcha] actor to [Master]
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#[derive(Message, Builder)]
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#[rtype(result = "()")]
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pub struct AddSite {
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pub id: String,
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pub addr: Addr<MCaptcha>,
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}
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impl Handler<AddSite> for Master {
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type Result = ();
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fn handle(&mut self, m: AddSite, _ctx: &mut Self::Context) -> Self::Result {
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self.add_site(m);
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use crate::mcaptcha::tests::*;
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#[actix_rt::test]
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async fn master_actor_works() {
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let addr = Master::new().start();
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let id = "yo";
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let mcaptcha = get_counter().start();
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let msg = AddSiteBuilder::default()
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.id(id.into())
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.addr(mcaptcha.clone())
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.build()
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.unwrap();
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addr.send(msg).await.unwrap();
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let mcaptcha_addr = addr.send(GetSite(id.into())).await.unwrap();
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assert_eq!(mcaptcha_addr, Some(mcaptcha));
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let addr_doesnt_exist = addr.send(GetSite("a".into())).await.unwrap();
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assert!(addr_doesnt_exist.is_none());
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}
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}
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