WIP: start work on http tracker

aquatic_http/src/lib/lib.rs

@@ -0,0 +1,143 @@
+use std::time::Duration;
+use std::fs::File;
+use std::io::Read;
+use std::sync::Arc;
+use std::thread::Builder;
+
+use anyhow::Context;
+use native_tls::{Identity, TlsAcceptor};
+use parking_lot::Mutex;
+use privdrop::PrivDrop;
+
+pub mod common;
+pub mod config;
+pub mod handler;
+pub mod network;
+pub mod protocol;
+pub mod tasks;
+
+use common::*;
+use config::Config;
+
+
+// almost identical to ws version
+pub fn run(config: Config) -> anyhow::Result<()> {
+    let opt_tls_acceptor = create_tls_acceptor(&config)?;
+
+    let state = State::default();
+
+    let (request_channel_sender, request_channel_receiver) = ::flume::unbounded();
+
+    let mut out_message_senders = Vec::new();
+
+    let socket_worker_statuses: SocketWorkerStatuses = {
+        let mut statuses = Vec::new();
+
+        for _ in 0..config.socket_workers {
+            statuses.push(None);
+        }
+
+        Arc::new(Mutex::new(statuses))
+    };
+
+    for i in 0..config.socket_workers {
+        let config = config.clone();
+        let socket_worker_statuses = socket_worker_statuses.clone();
+        let request_channel_sender = request_channel_sender.clone();
+        let opt_tls_acceptor = opt_tls_acceptor.clone();
+
+        let (response_channel_sender, response_channel_receiver) = ::flume::unbounded();
+
+        out_message_senders.push(response_channel_sender);
+
+        Builder::new().name(format!("socket-{:02}", i + 1)).spawn(move || {
+            network::run_socket_worker(
+                config,
+                i,
+                socket_worker_statuses,
+                request_channel_sender,
+                response_channel_receiver,
+                opt_tls_acceptor
+            );
+        })?;
+    }
+
+    // Wait for socket worker statuses. On error from any, quit program.
+    // On success from all, drop privileges if corresponding setting is set
+    // and continue program.
+    loop {
+        ::std::thread::sleep(::std::time::Duration::from_millis(10));
+
+        if let Some(statuses) = socket_worker_statuses.try_lock(){
+            for opt_status in statuses.iter(){
+                match opt_status {
+                    Some(Err(err)) => {
+                        return Err(::anyhow::anyhow!(err.to_owned()));
+                    },
+                    _ => {},
+                }
+            }
+
+            if statuses.iter().all(Option::is_some){
+                if config.privileges.drop_privileges {
+                    PrivDrop::default()
+                        .chroot(config.privileges.chroot_path.clone())
+                        .user(config.privileges.user.clone())
+                        .apply()
+                        .context("Couldn't drop root privileges")?;
+                }
+
+                break
+            }
+        }
+    }
+
+    let response_channel_sender = ResponseChannelSender::new(out_message_senders);
+
+    {
+        let config = config.clone();
+        let state = state.clone();
+
+        Builder::new().name("request".to_string()).spawn(move || {
+            handler::run_request_worker(
+                config,
+                state,
+                request_channel_receiver,
+                response_channel_sender,
+            );
+        })?;
+    }
+
+    loop {
+        ::std::thread::sleep(Duration::from_secs(config.cleaning.interval));
+
+        tasks::clean_torrents(&state);
+    }
+}
+
+
+// identical to ws version
+pub fn create_tls_acceptor(
+    config: &Config,
+) -> anyhow::Result<Option<TlsAcceptor>> {
+    if config.network.use_tls {
+        let mut identity_bytes = Vec::new();
+        let mut file = File::open(&config.network.tls_pkcs12_path)
+            .context("Couldn't open pkcs12 identity file")?;
+
+        file.read_to_end(&mut identity_bytes)
+            .context("Couldn't read pkcs12 identity file")?;
+
+        let identity = Identity::from_pkcs12(
+            &mut identity_bytes,
+            &config.network.tls_pkcs12_password
+        ).context("Couldn't parse pkcs12 identity file")?;
+
+        let acceptor = TlsAcceptor::new(identity)
+            .context("Couldn't create TlsAcceptor from pkcs12 identity")?;
+
+        Ok(Some(acceptor))
+    } else {
+        Ok(None)
+    }
+}