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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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3
plugin/forward/setup_test.go
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@@ -45,11 +45,12 @@ func TestSetup(t *testing.T) {
{`forward . ::1
forward com ::2`, false, ".", nil, 2, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "plugin"},
{"forward . tls://[2400:3200::1%dns.alidns.com]:853 {\ntls\n}\n", false, ".", nil, 2, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, ""},
{"forward . https://127.0.0.1 \n", false, ".", nil, 2, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, ""},
// negative
{"forward . https://1.1.1.1/ \n", true, "", nil, 0, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "paths are not allowed in HTTPS upstream addresses"},
{"forward . a27.0.0.1", true, "", nil, 0, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "failed to resolve"},
{"forward . 127.0.0.1 {\nblaatl\n}\n", true, "", nil, 0, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "unknown property"},
{"forward . 127.0.0.1 {\nhealth_check 0.5s domain\n}\n", true, "", nil, 0, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "Wrong argument count or unexpected line ending after 'domain'"},
{"forward . https://127.0.0.1 \n", true, ".", nil, 2, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "'https' is not supported as a destination protocol in forward: https://127.0.0.1"},
{"forward xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 127.0.0.1 \n", true, ".", nil, 2, proxy.Options{HCRecursionDesired: true, HCDomain: "."}, "unable to normalize 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'"},
}