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feat(forward): add doh support (#8004)

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* chore(pkg/proxy): prepare for DoH implementation

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore(pkg/proxy): prepare for DoH implementation

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* feat(proxy): implement basic DoH resolution

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* feat(forward): implement DoH forwarding

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* feat(proxy): add basic DoH health checker

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore: align http transport with Go's DefaultTransport

and resolve some of the TODOs

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* docs(forward): add basic documentation for DoH

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore: add basic tests to cover DoH

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore(health): unify default timeout to 1s

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* feat(forward): make doh method configurable

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore: remove maxIdleConnsPerHost setting & update docs

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

* chore(forward): reject https upstreams with path

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>

---------

Signed-off-by: Thomas Gosteli <thomas.gosteli@protonmail.ch>
This commit is contained in:
Thomas Gosteli
2026-06-15 02:54:05 +02:00
committed by GitHub
parent 3764620726
commit f2f5b5a1cc
12 changed files with 363 additions and 36 deletions
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7
plugin/pkg/proxy/persistent.go
View File

@@ -2,6 +2,7 @@ package proxy
import (
"crypto/tls"
"net/http"
"sort"
"sync"
"time"
@@ -19,12 +20,13 @@ type persistConn struct {
// Transport hold the persistent cache.
type Transport struct {
avgDialTime int64 // kind of average time of dial time
conns [typeTotalCount][]*persistConn // Buckets for udp, tcp and tcp-tls.
conns [typeTotalCount][]*persistConn // Buckets for udp and tcp connections
expire time.Duration // After this duration an idle connection is expired.
maxAge time.Duration // After this duration a connection is closed regardless of activity; 0 means unlimited.
maxIdleConns int // Max idle connections per transport type; 0 means unlimited.
maxIdleConns int // Max idle connections per protocol type; 0 means unlimited.
addr string
tlsConfig *tls.Config
httpClient *http.Client
proxyName string
mu sync.Mutex
@@ -40,6 +42,7 @@ func newTransport(proxyName, addr string) *Transport {
stop: make(chan struct{}),
proxyName: proxyName,
}
return t
}