Line data Source code
1 : use std::io;
2 : use std::sync::Arc;
3 : use std::time::Duration;
4 :
5 : use async_trait::async_trait;
6 : use hyper_util::rt::{TokioExecutor, TokioIo, TokioTimer};
7 : use p256::ecdsa::SigningKey;
8 : use p256::elliptic_curve::JwkEcKey;
9 : use rand::rngs::OsRng;
10 : use tokio::net::{lookup_host, TcpStream};
11 : use tracing::field::display;
12 : use tracing::{debug, info};
13 :
14 : use super::conn_pool::poll_client;
15 : use super::conn_pool_lib::{Client, ConnInfo, EndpointConnPool, GlobalConnPool};
16 : use super::http_conn_pool::{self, poll_http2_client, HttpConnPool, Send};
17 : use super::local_conn_pool::{self, LocalConnPool, EXT_NAME, EXT_SCHEMA, EXT_VERSION};
18 : use crate::auth::backend::local::StaticAuthRules;
19 : use crate::auth::backend::{ComputeCredentials, ComputeUserInfo};
20 : use crate::auth::{self, check_peer_addr_is_in_list, AuthError};
21 : use crate::compute;
22 : use crate::compute_ctl::{
23 : ComputeCtlError, ExtensionInstallRequest, Privilege, SetRoleGrantsRequest,
24 : };
25 : use crate::config::ProxyConfig;
26 : use crate::context::RequestContext;
27 : use crate::control_plane::client::ApiLockError;
28 : use crate::control_plane::errors::{GetAuthInfoError, WakeComputeError};
29 : use crate::control_plane::locks::ApiLocks;
30 : use crate::control_plane::CachedNodeInfo;
31 : use crate::error::{ErrorKind, ReportableError, UserFacingError};
32 : use crate::intern::EndpointIdInt;
33 : use crate::proxy::connect_compute::ConnectMechanism;
34 : use crate::proxy::retry::{CouldRetry, ShouldRetryWakeCompute};
35 : use crate::rate_limiter::EndpointRateLimiter;
36 : use crate::types::{EndpointId, Host, LOCAL_PROXY_SUFFIX};
37 :
38 : pub(crate) struct PoolingBackend {
39 : pub(crate) http_conn_pool: Arc<GlobalConnPool<Send, HttpConnPool<Send>>>,
40 : pub(crate) local_pool: Arc<LocalConnPool<postgres_client::Client>>,
41 : pub(crate) pool:
42 : Arc<GlobalConnPool<postgres_client::Client, EndpointConnPool<postgres_client::Client>>>,
43 :
44 : pub(crate) config: &'static ProxyConfig,
45 : pub(crate) auth_backend: &'static crate::auth::Backend<'static, ()>,
46 : pub(crate) endpoint_rate_limiter: Arc<EndpointRateLimiter>,
47 : }
48 :
49 : impl PoolingBackend {
50 0 : pub(crate) async fn authenticate_with_password(
51 0 : &self,
52 0 : ctx: &RequestContext,
53 0 : user_info: &ComputeUserInfo,
54 0 : password: &[u8],
55 0 : ) -> Result<ComputeCredentials, AuthError> {
56 0 : ctx.set_auth_method(crate::context::AuthMethod::Cleartext);
57 0 :
58 0 : let user_info = user_info.clone();
59 0 : let backend = self.auth_backend.as_ref().map(|()| user_info.clone());
60 0 : let (allowed_ips, maybe_secret) = backend.get_allowed_ips_and_secret(ctx).await?;
61 0 : if self.config.authentication_config.ip_allowlist_check_enabled
62 0 : && !check_peer_addr_is_in_list(&ctx.peer_addr(), &allowed_ips)
63 : {
64 0 : return Err(AuthError::ip_address_not_allowed(ctx.peer_addr()));
65 0 : }
66 0 : if !self
67 0 : .endpoint_rate_limiter
68 0 : .check(user_info.endpoint.clone().into(), 1)
69 : {
70 0 : return Err(AuthError::too_many_connections());
71 0 : }
72 0 : let cached_secret = match maybe_secret {
73 0 : Some(secret) => secret,
74 0 : None => backend.get_role_secret(ctx).await?,
75 : };
76 :
77 0 : let secret = match cached_secret.value.clone() {
78 0 : Some(secret) => self.config.authentication_config.check_rate_limit(
79 0 : ctx,
80 0 : secret,
81 0 : &user_info.endpoint,
82 0 : true,
83 0 : )?,
84 : None => {
85 : // If we don't have an authentication secret, for the http flow we can just return an error.
86 0 : info!("authentication info not found");
87 0 : return Err(AuthError::password_failed(&*user_info.user));
88 : }
89 : };
90 0 : let ep = EndpointIdInt::from(&user_info.endpoint);
91 0 : let auth_outcome = crate::auth::validate_password_and_exchange(
92 0 : &self.config.authentication_config.thread_pool,
93 0 : ep,
94 0 : password,
95 0 : secret,
96 0 : )
97 0 : .await?;
98 0 : let res = match auth_outcome {
99 0 : crate::sasl::Outcome::Success(key) => {
100 0 : info!("user successfully authenticated");
101 0 : Ok(key)
102 : }
103 0 : crate::sasl::Outcome::Failure(reason) => {
104 0 : info!("auth backend failed with an error: {reason}");
105 0 : Err(AuthError::password_failed(&*user_info.user))
106 : }
107 : };
108 0 : res.map(|key| ComputeCredentials {
109 0 : info: user_info,
110 0 : keys: key,
111 0 : })
112 0 : }
113 :
114 0 : pub(crate) async fn authenticate_with_jwt(
115 0 : &self,
116 0 : ctx: &RequestContext,
117 0 : user_info: &ComputeUserInfo,
118 0 : jwt: String,
119 0 : ) -> Result<ComputeCredentials, AuthError> {
120 0 : ctx.set_auth_method(crate::context::AuthMethod::Jwt);
121 0 :
122 0 : match &self.auth_backend {
123 0 : crate::auth::Backend::ControlPlane(console, ()) => {
124 0 : self.config
125 0 : .authentication_config
126 0 : .jwks_cache
127 0 : .check_jwt(
128 0 : ctx,
129 0 : user_info.endpoint.clone(),
130 0 : &user_info.user,
131 0 : &**console,
132 0 : &jwt,
133 0 : )
134 0 : .await?;
135 :
136 0 : Ok(ComputeCredentials {
137 0 : info: user_info.clone(),
138 0 : keys: crate::auth::backend::ComputeCredentialKeys::None,
139 0 : })
140 : }
141 : crate::auth::Backend::Local(_) => {
142 0 : let keys = self
143 0 : .config
144 0 : .authentication_config
145 0 : .jwks_cache
146 0 : .check_jwt(
147 0 : ctx,
148 0 : user_info.endpoint.clone(),
149 0 : &user_info.user,
150 0 : &StaticAuthRules,
151 0 : &jwt,
152 0 : )
153 0 : .await?;
154 :
155 0 : Ok(ComputeCredentials {
156 0 : info: user_info.clone(),
157 0 : keys,
158 0 : })
159 : }
160 : }
161 0 : }
162 :
163 : // Wake up the destination if needed. Code here is a bit involved because
164 : // we reuse the code from the usual proxy and we need to prepare few structures
165 : // that this code expects.
166 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
167 : pub(crate) async fn connect_to_compute(
168 : &self,
169 : ctx: &RequestContext,
170 : conn_info: ConnInfo,
171 : keys: ComputeCredentials,
172 : force_new: bool,
173 : ) -> Result<Client<postgres_client::Client>, HttpConnError> {
174 : let maybe_client = if force_new {
175 : debug!("pool: pool is disabled");
176 : None
177 : } else {
178 : debug!("pool: looking for an existing connection");
179 : self.pool.get(ctx, &conn_info)?
180 : };
181 :
182 : if let Some(client) = maybe_client {
183 : return Ok(client);
184 : }
185 : let conn_id = uuid::Uuid::new_v4();
186 : tracing::Span::current().record("conn_id", display(conn_id));
187 : info!(%conn_id, "pool: opening a new connection '{conn_info}'");
188 0 : let backend = self.auth_backend.as_ref().map(|()| keys);
189 : crate::proxy::connect_compute::connect_to_compute(
190 : ctx,
191 : &TokioMechanism {
192 : conn_id,
193 : conn_info,
194 : pool: self.pool.clone(),
195 : locks: &self.config.connect_compute_locks,
196 : },
197 : &backend,
198 : false, // do not allow self signed compute for http flow
199 : self.config.wake_compute_retry_config,
200 : self.config.connect_to_compute_retry_config,
201 : )
202 : .await
203 : }
204 :
205 : // Wake up the destination if needed
206 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
207 : pub(crate) async fn connect_to_local_proxy(
208 : &self,
209 : ctx: &RequestContext,
210 : conn_info: ConnInfo,
211 : ) -> Result<http_conn_pool::Client<Send>, HttpConnError> {
212 : debug!("pool: looking for an existing connection");
213 : if let Ok(Some(client)) = self.http_conn_pool.get(ctx, &conn_info) {
214 : return Ok(client);
215 : }
216 :
217 : let conn_id = uuid::Uuid::new_v4();
218 : tracing::Span::current().record("conn_id", display(conn_id));
219 : debug!(%conn_id, "pool: opening a new connection '{conn_info}'");
220 0 : let backend = self.auth_backend.as_ref().map(|()| ComputeCredentials {
221 0 : info: ComputeUserInfo {
222 0 : user: conn_info.user_info.user.clone(),
223 0 : endpoint: EndpointId::from(format!(
224 0 : "{}{LOCAL_PROXY_SUFFIX}",
225 0 : conn_info.user_info.endpoint.normalize()
226 0 : )),
227 0 : options: conn_info.user_info.options.clone(),
228 0 : },
229 0 : keys: crate::auth::backend::ComputeCredentialKeys::None,
230 0 : });
231 : crate::proxy::connect_compute::connect_to_compute(
232 : ctx,
233 : &HyperMechanism {
234 : conn_id,
235 : conn_info,
236 : pool: self.http_conn_pool.clone(),
237 : locks: &self.config.connect_compute_locks,
238 : },
239 : &backend,
240 : false, // do not allow self signed compute for http flow
241 : self.config.wake_compute_retry_config,
242 : self.config.connect_to_compute_retry_config,
243 : )
244 : .await
245 : }
246 :
247 : /// Connect to postgres over localhost.
248 : ///
249 : /// We expect postgres to be started here, so we won't do any retries.
250 : ///
251 : /// # Panics
252 : ///
253 : /// Panics if called with a non-local_proxy backend.
254 0 : #[tracing::instrument(fields(pid = tracing::field::Empty), skip_all)]
255 : pub(crate) async fn connect_to_local_postgres(
256 : &self,
257 : ctx: &RequestContext,
258 : conn_info: ConnInfo,
259 : ) -> Result<Client<postgres_client::Client>, HttpConnError> {
260 : if let Some(client) = self.local_pool.get(ctx, &conn_info)? {
261 : return Ok(client);
262 : }
263 :
264 : let local_backend = match &self.auth_backend {
265 : auth::Backend::ControlPlane(_, ()) => {
266 : unreachable!("only local_proxy can connect to local postgres")
267 : }
268 : auth::Backend::Local(local) => local,
269 : };
270 :
271 : if !self.local_pool.initialized(&conn_info) {
272 : // only install and grant usage one at a time.
273 : let _permit = local_backend.initialize.acquire().await.unwrap();
274 :
275 : // check again for race
276 : if !self.local_pool.initialized(&conn_info) {
277 : local_backend
278 : .compute_ctl
279 : .install_extension(&ExtensionInstallRequest {
280 : extension: EXT_NAME,
281 : database: conn_info.dbname.clone(),
282 : version: EXT_VERSION,
283 : })
284 : .await?;
285 :
286 : local_backend
287 : .compute_ctl
288 : .grant_role(&SetRoleGrantsRequest {
289 : schema: EXT_SCHEMA,
290 : privileges: vec![Privilege::Usage],
291 : database: conn_info.dbname.clone(),
292 : role: conn_info.user_info.user.clone(),
293 : })
294 : .await?;
295 :
296 : self.local_pool.set_initialized(&conn_info);
297 : }
298 : }
299 :
300 : let conn_id = uuid::Uuid::new_v4();
301 : tracing::Span::current().record("conn_id", display(conn_id));
302 : info!(%conn_id, "local_pool: opening a new connection '{conn_info}'");
303 :
304 : let mut node_info = local_backend.node_info.clone();
305 :
306 : let (key, jwk) = create_random_jwk();
307 :
308 : let config = node_info
309 : .config
310 : .user(&conn_info.user_info.user)
311 : .dbname(&conn_info.dbname)
312 : .set_param(
313 : "options",
314 : &format!(
315 : "-c pg_session_jwt.jwk={}",
316 : serde_json::to_string(&jwk).expect("serializing jwk to json should not fail")
317 : ),
318 : );
319 :
320 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
321 : let (client, connection) = config.connect(postgres_client::NoTls).await?;
322 : drop(pause);
323 :
324 : let pid = client.get_process_id();
325 : tracing::Span::current().record("pid", pid);
326 :
327 : let mut handle = local_conn_pool::poll_client(
328 : self.local_pool.clone(),
329 : ctx,
330 : conn_info,
331 : client,
332 : connection,
333 : key,
334 : conn_id,
335 : node_info.aux.clone(),
336 : );
337 :
338 : {
339 : let (client, mut discard) = handle.inner();
340 : debug!("setting up backend session state");
341 :
342 : // initiates the auth session
343 : if let Err(e) = client.execute("select auth.init()", &[]).await {
344 : discard.discard();
345 : return Err(e.into());
346 : }
347 :
348 : info!("backend session state initialized");
349 : }
350 :
351 : Ok(handle)
352 : }
353 : }
354 :
355 0 : fn create_random_jwk() -> (SigningKey, JwkEcKey) {
356 0 : let key = SigningKey::random(&mut OsRng);
357 0 : let jwk = p256::PublicKey::from(key.verifying_key()).to_jwk();
358 0 : (key, jwk)
359 0 : }
360 :
361 : #[derive(Debug, thiserror::Error)]
362 : pub(crate) enum HttpConnError {
363 : #[error("pooled connection closed at inconsistent state")]
364 : ConnectionClosedAbruptly(#[from] tokio::sync::watch::error::SendError<uuid::Uuid>),
365 : #[error("could not connection to postgres in compute")]
366 : PostgresConnectionError(#[from] postgres_client::Error),
367 : #[error("could not connection to local-proxy in compute")]
368 : LocalProxyConnectionError(#[from] LocalProxyConnError),
369 : #[error("could not parse JWT payload")]
370 : JwtPayloadError(serde_json::Error),
371 :
372 : #[error("could not install extension: {0}")]
373 : ComputeCtl(#[from] ComputeCtlError),
374 : #[error("could not get auth info")]
375 : GetAuthInfo(#[from] GetAuthInfoError),
376 : #[error("user not authenticated")]
377 : AuthError(#[from] AuthError),
378 : #[error("wake_compute returned error")]
379 : WakeCompute(#[from] WakeComputeError),
380 : #[error("error acquiring resource permit: {0}")]
381 : TooManyConnectionAttempts(#[from] ApiLockError),
382 : }
383 :
384 : #[derive(Debug, thiserror::Error)]
385 : pub(crate) enum LocalProxyConnError {
386 : #[error("error with connection to local-proxy")]
387 : Io(#[source] std::io::Error),
388 : #[error("could not establish h2 connection")]
389 : H2(#[from] hyper::Error),
390 : }
391 :
392 : impl ReportableError for HttpConnError {
393 0 : fn get_error_kind(&self) -> ErrorKind {
394 0 : match self {
395 0 : HttpConnError::ConnectionClosedAbruptly(_) => ErrorKind::Compute,
396 0 : HttpConnError::PostgresConnectionError(p) => p.get_error_kind(),
397 0 : HttpConnError::LocalProxyConnectionError(_) => ErrorKind::Compute,
398 0 : HttpConnError::ComputeCtl(_) => ErrorKind::Service,
399 0 : HttpConnError::JwtPayloadError(_) => ErrorKind::User,
400 0 : HttpConnError::GetAuthInfo(a) => a.get_error_kind(),
401 0 : HttpConnError::AuthError(a) => a.get_error_kind(),
402 0 : HttpConnError::WakeCompute(w) => w.get_error_kind(),
403 0 : HttpConnError::TooManyConnectionAttempts(w) => w.get_error_kind(),
404 : }
405 0 : }
406 : }
407 :
408 : impl UserFacingError for HttpConnError {
409 0 : fn to_string_client(&self) -> String {
410 0 : match self {
411 0 : HttpConnError::ConnectionClosedAbruptly(_) => self.to_string(),
412 0 : HttpConnError::PostgresConnectionError(p) => p.to_string(),
413 0 : HttpConnError::LocalProxyConnectionError(p) => p.to_string(),
414 0 : HttpConnError::ComputeCtl(_) => "could not set up the JWT authorization database extension".to_string(),
415 0 : HttpConnError::JwtPayloadError(p) => p.to_string(),
416 0 : HttpConnError::GetAuthInfo(c) => c.to_string_client(),
417 0 : HttpConnError::AuthError(c) => c.to_string_client(),
418 0 : HttpConnError::WakeCompute(c) => c.to_string_client(),
419 : HttpConnError::TooManyConnectionAttempts(_) => {
420 0 : "Failed to acquire permit to connect to the database. Too many database connection attempts are currently ongoing.".to_owned()
421 : }
422 : }
423 0 : }
424 : }
425 :
426 : impl CouldRetry for HttpConnError {
427 0 : fn could_retry(&self) -> bool {
428 0 : match self {
429 0 : HttpConnError::PostgresConnectionError(e) => e.could_retry(),
430 0 : HttpConnError::LocalProxyConnectionError(e) => e.could_retry(),
431 0 : HttpConnError::ComputeCtl(_) => false,
432 0 : HttpConnError::ConnectionClosedAbruptly(_) => false,
433 0 : HttpConnError::JwtPayloadError(_) => false,
434 0 : HttpConnError::GetAuthInfo(_) => false,
435 0 : HttpConnError::AuthError(_) => false,
436 0 : HttpConnError::WakeCompute(_) => false,
437 0 : HttpConnError::TooManyConnectionAttempts(_) => false,
438 : }
439 0 : }
440 : }
441 : impl ShouldRetryWakeCompute for HttpConnError {
442 0 : fn should_retry_wake_compute(&self) -> bool {
443 0 : match self {
444 0 : HttpConnError::PostgresConnectionError(e) => e.should_retry_wake_compute(),
445 : // we never checked cache validity
446 0 : HttpConnError::TooManyConnectionAttempts(_) => false,
447 0 : _ => true,
448 : }
449 0 : }
450 : }
451 :
452 : impl ReportableError for LocalProxyConnError {
453 0 : fn get_error_kind(&self) -> ErrorKind {
454 0 : match self {
455 0 : LocalProxyConnError::Io(_) => ErrorKind::Compute,
456 0 : LocalProxyConnError::H2(_) => ErrorKind::Compute,
457 : }
458 0 : }
459 : }
460 :
461 : impl UserFacingError for LocalProxyConnError {
462 0 : fn to_string_client(&self) -> String {
463 0 : "Could not establish HTTP connection to the database".to_string()
464 0 : }
465 : }
466 :
467 : impl CouldRetry for LocalProxyConnError {
468 0 : fn could_retry(&self) -> bool {
469 0 : match self {
470 0 : LocalProxyConnError::Io(_) => false,
471 0 : LocalProxyConnError::H2(_) => false,
472 : }
473 0 : }
474 : }
475 : impl ShouldRetryWakeCompute for LocalProxyConnError {
476 0 : fn should_retry_wake_compute(&self) -> bool {
477 0 : match self {
478 0 : LocalProxyConnError::Io(_) => false,
479 0 : LocalProxyConnError::H2(_) => false,
480 : }
481 0 : }
482 : }
483 :
484 : struct TokioMechanism {
485 : pool: Arc<GlobalConnPool<postgres_client::Client, EndpointConnPool<postgres_client::Client>>>,
486 : conn_info: ConnInfo,
487 : conn_id: uuid::Uuid,
488 :
489 : /// connect_to_compute concurrency lock
490 : locks: &'static ApiLocks<Host>,
491 : }
492 :
493 : #[async_trait]
494 : impl ConnectMechanism for TokioMechanism {
495 : type Connection = Client<postgres_client::Client>;
496 : type ConnectError = HttpConnError;
497 : type Error = HttpConnError;
498 :
499 0 : async fn connect_once(
500 0 : &self,
501 0 : ctx: &RequestContext,
502 0 : node_info: &CachedNodeInfo,
503 0 : timeout: Duration,
504 0 : ) -> Result<Self::Connection, Self::ConnectError> {
505 0 : let host = node_info.config.get_host();
506 0 : let permit = self.locks.get_permit(&host).await?;
507 :
508 0 : let mut config = (*node_info.config).clone();
509 0 : let config = config
510 0 : .user(&self.conn_info.user_info.user)
511 0 : .dbname(&self.conn_info.dbname)
512 0 : .connect_timeout(timeout);
513 0 :
514 0 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
515 0 : let res = config.connect(postgres_client::NoTls).await;
516 0 : drop(pause);
517 0 : let (client, connection) = permit.release_result(res)?;
518 :
519 0 : tracing::Span::current().record("pid", tracing::field::display(client.get_process_id()));
520 0 : Ok(poll_client(
521 0 : self.pool.clone(),
522 0 : ctx,
523 0 : self.conn_info.clone(),
524 0 : client,
525 0 : connection,
526 0 : self.conn_id,
527 0 : node_info.aux.clone(),
528 0 : ))
529 0 : }
530 :
531 0 : fn update_connect_config(&self, _config: &mut compute::ConnCfg) {}
532 : }
533 :
534 : struct HyperMechanism {
535 : pool: Arc<GlobalConnPool<Send, HttpConnPool<Send>>>,
536 : conn_info: ConnInfo,
537 : conn_id: uuid::Uuid,
538 :
539 : /// connect_to_compute concurrency lock
540 : locks: &'static ApiLocks<Host>,
541 : }
542 :
543 : #[async_trait]
544 : impl ConnectMechanism for HyperMechanism {
545 : type Connection = http_conn_pool::Client<Send>;
546 : type ConnectError = HttpConnError;
547 : type Error = HttpConnError;
548 :
549 0 : async fn connect_once(
550 0 : &self,
551 0 : ctx: &RequestContext,
552 0 : node_info: &CachedNodeInfo,
553 0 : timeout: Duration,
554 0 : ) -> Result<Self::Connection, Self::ConnectError> {
555 0 : let host = node_info.config.get_host();
556 0 : let permit = self.locks.get_permit(&host).await?;
557 :
558 0 : let pause = ctx.latency_timer_pause(crate::metrics::Waiting::Compute);
559 0 :
560 0 : let port = node_info.config.get_port();
561 0 : let res = connect_http2(&host, port, timeout).await;
562 0 : drop(pause);
563 0 : let (client, connection) = permit.release_result(res)?;
564 :
565 0 : Ok(poll_http2_client(
566 0 : self.pool.clone(),
567 0 : ctx,
568 0 : &self.conn_info,
569 0 : client,
570 0 : connection,
571 0 : self.conn_id,
572 0 : node_info.aux.clone(),
573 0 : ))
574 0 : }
575 :
576 0 : fn update_connect_config(&self, _config: &mut compute::ConnCfg) {}
577 : }
578 :
579 0 : async fn connect_http2(
580 0 : host: &str,
581 0 : port: u16,
582 0 : timeout: Duration,
583 0 : ) -> Result<(http_conn_pool::Send, http_conn_pool::Connect), LocalProxyConnError> {
584 : // assumption: host is an ip address so this should not actually perform any requests.
585 : // todo: add that assumption as a guarantee in the control-plane API.
586 0 : let mut addrs = lookup_host((host, port))
587 0 : .await
588 0 : .map_err(LocalProxyConnError::Io)?;
589 :
590 0 : let mut last_err = None;
591 :
592 0 : let stream = loop {
593 0 : let Some(addr) = addrs.next() else {
594 0 : return Err(last_err.unwrap_or_else(|| {
595 0 : LocalProxyConnError::Io(io::Error::new(
596 0 : io::ErrorKind::InvalidInput,
597 0 : "could not resolve any addresses",
598 0 : ))
599 0 : }));
600 : };
601 :
602 0 : match tokio::time::timeout(timeout, TcpStream::connect(addr)).await {
603 0 : Ok(Ok(stream)) => {
604 0 : stream.set_nodelay(true).map_err(LocalProxyConnError::Io)?;
605 0 : break stream;
606 : }
607 0 : Ok(Err(e)) => {
608 0 : last_err = Some(LocalProxyConnError::Io(e));
609 0 : }
610 0 : Err(e) => {
611 0 : last_err = Some(LocalProxyConnError::Io(io::Error::new(
612 0 : io::ErrorKind::TimedOut,
613 0 : e,
614 0 : )));
615 0 : }
616 : };
617 : };
618 :
619 0 : let (client, connection) = hyper::client::conn::http2::Builder::new(TokioExecutor::new())
620 0 : .timer(TokioTimer::new())
621 0 : .keep_alive_interval(Duration::from_secs(20))
622 0 : .keep_alive_while_idle(true)
623 0 : .keep_alive_timeout(Duration::from_secs(5))
624 0 : .handshake(TokioIo::new(stream))
625 0 : .await?;
626 :
627 0 : Ok((client, connection))
628 0 : }
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