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Middle Proxy Minimal

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Co-Authored-By: brekotis <93345790+brekotis@users.noreply.github.com>
This commit is contained in:
Alexey
2026-02-15 13:14:50 +03:00
parent 3d2e996cea
commit 94a7058cc6
10 changed files with 319 additions and 84 deletions
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79
src/transport/middle_proxy/send.rs
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@@ -6,7 +6,7 @@ use tokio::sync::Mutex;
use tracing::{debug, warn};
use crate::error::{ProxyError, Result};
use crate::protocol::constants::{RPC_CLOSE_EXT_U32, TG_MIDDLE_PROXIES_V4};
use crate::protocol::constants::{RPC_CLOSE_EXT_U32};
use super::MePool;
use super::codec::RpcWriter;
@@ -39,7 +39,7 @@ impl MePool {
let writers: Vec<(SocketAddr, Arc<Mutex<RpcWriter>>)> = ws.iter().cloned().collect();
drop(ws);
let candidate_indices = candidate_indices_for_dc(&writers, target_dc);
let candidate_indices = self.candidate_indices_for_dc(&writers, target_dc).await;
if candidate_indices.is_empty() {
return Err(ProxyError::Proxy("No ME writers available for target DC".into()));
}
@@ -106,41 +106,54 @@ impl MePool {
pub fn connection_count(&self) -> usize {
self.writers.try_read().map(|w| w.len()).unwrap_or(0)
}
}
pub(super) async fn candidate_indices_for_dc(
&self,
writers: &[(SocketAddr, Arc<Mutex<RpcWriter>>)],
target_dc: i16,
) -> Vec<usize> {
let mut preferred = Vec::<SocketAddr>::new();
let key = target_dc as i32;
let map = self.proxy_map_v4.read().await;
fn candidate_indices_for_dc(
writers: &[(SocketAddr, Arc<Mutex<RpcWriter>>)],
target_dc: i16,
) -> Vec<usize> {
let mut preferred = Vec::<SocketAddr>::new();
let key = target_dc as i32;
if let Some(v) = TG_MIDDLE_PROXIES_V4.get(&key) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
}
if preferred.is_empty() {
let abs = key.abs();
if let Some(v) = TG_MIDDLE_PROXIES_V4.get(&abs) {
if let Some(v) = map.get(&key) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
}
}
if preferred.is_empty() {
let abs = key.abs();
if let Some(v) = TG_MIDDLE_PROXIES_V4.get(&-abs) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
if preferred.is_empty() {
let abs = key.abs();
if let Some(v) = map.get(&abs) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
}
}
}
if preferred.is_empty() {
return (0..writers.len()).collect();
if preferred.is_empty() {
let abs = key.abs();
if let Some(v) = map.get(&-abs) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
}
}
if preferred.is_empty() {
let def = self.default_dc.load(Ordering::Relaxed);
if def != 0 {
if let Some(v) = map.get(&def) {
preferred.extend(v.iter().map(|(ip, port)| SocketAddr::new(*ip, *port)));
}
}
}
if preferred.is_empty() {
return (0..writers.len()).collect();
}
let mut out = Vec::new();
for (idx, (addr, _)) in writers.iter().enumerate() {
if preferred.iter().any(|p| p == addr) {
out.push(idx);
}
}
if out.is_empty() {
return (0..writers.len()).collect();
}
out
}
let mut out = Vec::new();
for (idx, (addr, _)) in writers.iter().enumerate() {
if preferred.iter().any(|p| p == addr) {
out.push(idx);
}
}
if out.is_empty() {
return (0..writers.len()).collect();
}
out
}