aquatic_ws: almost finish implementing access list support

aquatic_ws/src/lib/common.rs

@@ -1,6 +1,8 @@
 use std::net::{IpAddr, SocketAddr};
 use std::sync::Arc;
+use std::time::Instant;
 
+use aquatic_common::access_list::AccessList;
 use crossbeam_channel::{Receiver, Sender};
 use hashbrown::HashMap;
 use indexmap::IndexMap;
@@ -12,6 +14,8 @@ pub use aquatic_common::ValidUntil;
 
 use aquatic_ws_protocol::*;
 
+use crate::config::Config;
+
 pub const LISTENER_TOKEN: Token = Token(0);
 pub const CHANNEL_TOKEN: Token = Token(1);
 
@@ -82,6 +86,54 @@ pub type TorrentMap = HashMap<InfoHash, TorrentData>;
 pub struct TorrentMaps {
     pub ipv4: TorrentMap,
     pub ipv6: TorrentMap,
+    pub access_list: AccessList,
+}
+
+impl TorrentMaps {
+    pub fn clean(&mut self, config: &Config) {
+        Self::clean_torrent_map(config, &self.access_list, &mut self.ipv4);
+        Self::clean_torrent_map(config, &self.access_list, &mut self.ipv6);
+    }
+
+    fn clean_torrent_map(
+        config: &Config,
+        access_list: &AccessList,
+        torrent_map: &mut TorrentMap
+    ) {
+        let now = Instant::now();
+
+        torrent_map.retain(|info_hash, torrent_data| {
+            if !access_list.allows(config.access_list.mode, &info_hash.0) {
+                return false;
+            }
+
+            let num_seeders = &mut torrent_data.num_seeders;
+            let num_leechers = &mut torrent_data.num_leechers;
+
+            torrent_data.peers.retain(|_, peer| {
+                let keep = peer.valid_until.0 >= now;
+
+                if !keep {
+                    match peer.status {
+                        PeerStatus::Seeding => {
+                            *num_seeders -= 1;
+                        }
+                        PeerStatus::Leeching => {
+                            *num_leechers -= 1;
+                        }
+                        _ => (),
+                    };
+                }
+
+                keep
+            });
+
+            !torrent_data.peers.is_empty()
+        });
+
+        torrent_map.shrink_to_fit();
+    }
+
 }
 
 #[derive(Clone)]

aquatic_ws/src/lib/config.rs

@@ -1,5 +1,6 @@
 use std::net::SocketAddr;
 
+use aquatic_common::access_list::AccessListConfig;
 use serde::{Deserialize, Serialize};
 
 use aquatic_cli_helpers::LogLevel;
@@ -21,6 +22,7 @@ pub struct Config {
     pub cleaning: CleaningConfig,
     pub statistics: StatisticsConfig,
     pub privileges: PrivilegeConfig,
+    pub access_list: AccessListConfig,
 }
 
 impl aquatic_cli_helpers::Config for Config {
@@ -105,6 +107,7 @@ impl Default for Config {
             cleaning: CleaningConfig::default(),
             statistics: StatisticsConfig::default(),
             privileges: PrivilegeConfig::default(),
+            access_list: AccessListConfig::default(),
         }
     }
 }

aquatic_ws/src/lib/handler.rs

@@ -99,6 +99,19 @@ pub fn handle_announce_requests(
     let valid_until = ValidUntil::new(config.cleaning.max_peer_age);
 
     for (request_sender_meta, request) in requests {
+        let info_hash_allowed = torrent_maps
+            .access_list
+            .allows(config.access_list.mode, &request.info_hash.0);
+        
+        if !info_hash_allowed {
+            // let response = OutMessage::ErrorResponse();
+    
+            // out_message_sender.send(request_sender_meta, response);
+            // wake_socket_workers[request_sender_meta.worker_index] = true;
+
+            continue;
+        }
+
         let torrent_data: &mut TorrentData = if request_sender_meta.converted_peer_ip.is_ipv4() {
             torrent_maps.ipv4.entry(request.info_hash).or_default()
         } else {

aquatic_ws/src/lib/lib.rs

@@ -24,12 +24,18 @@ pub const APP_NAME: &str = "aquatic_ws: WebTorrent tracker";
 pub fn run(config: Config) -> anyhow::Result<()> {
     let state = State::default();
 
+    tasks::update_access_list(&config, &mut state.torrent_maps.lock());
+
     start_workers(config.clone(), state.clone())?;
 
     loop {
         ::std::thread::sleep(Duration::from_secs(config.cleaning.interval));
 
-        tasks::clean_torrents(&state);
+        let mut torrent_maps = state.torrent_maps.lock();
+
+        tasks::update_access_list(&config, &mut torrent_maps);
+
+        torrent_maps.clean(&config);
     }
 }
 

aquatic_ws/src/lib/tasks.rs

@@ -1,45 +1,23 @@
 use std::time::Instant;
 
+use aquatic_common::access_list::AccessListMode;
 use histogram::Histogram;
 
 use crate::common::*;
+use crate::config::Config;
 
-pub fn clean_torrents(state: &State) {
-    fn clean_torrent_map(torrent_map: &mut TorrentMap) {
-        let now = Instant::now();
-
-        torrent_map.retain(|_, torrent_data| {
-            let num_seeders = &mut torrent_data.num_seeders;
-            let num_leechers = &mut torrent_data.num_leechers;
-
-            torrent_data.peers.retain(|_, peer| {
-                let keep = peer.valid_until.0 >= now;
-
-                if !keep {
-                    match peer.status {
-                        PeerStatus::Seeding => {
-                            *num_seeders -= 1;
-                        }
-                        PeerStatus::Leeching => {
-                            *num_leechers -= 1;
-                        }
-                        _ => (),
-                    };
-                }
-
-                keep
-            });
-
-            !torrent_data.peers.is_empty()
-        });
-
-        torrent_map.shrink_to_fit();
+pub fn update_access_list(config: &Config, torrent_maps: &mut TorrentMaps) {
+    match config.access_list.mode {
+        AccessListMode::Require | AccessListMode::Forbid => {
+            if let Err(err) = torrent_maps
+                .access_list
+                .update_from_path(&config.access_list.path)
+            {
+                ::log::error!("Couldn't update access list: {:?}", err);
+            }
+        }
+        AccessListMode::Ignore => {}
     }
-
-    let mut torrent_maps = state.torrent_maps.lock();
-
-    clean_torrent_map(&mut torrent_maps.ipv4);
-    clean_torrent_map(&mut torrent_maps.ipv6);
 }
 
 pub fn print_statistics(state: &State) {