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Make PUBLIC_URL_DETECTION default to "auto" (#36955)

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Related issues including: #36939 , #35619, #34950 , #34253 , #32554

For users who use reverse-proxy, we have documented the requirements
clearly since long time ago :
https://docs.gitea.com/administration/reverse-proxies
This commit is contained in:
wxiaoguang
2026-03-24 07:19:08 +08:00
committed by GitHub
parent 86401fd5fd
commit 63c2b69259
3 changed files with 22 additions and 12 deletions
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9
custom/conf/app.example.ini
View File

@@ -69,13 +69,12 @@ RUN_USER = ; git
;; Most users should set it to the real website URL of their Gitea instance when there is a reverse proxy.
;ROOT_URL =
;;
;; Controls how to detect the public URL.
;; Although it defaults to "legacy" (to avoid breaking existing users), most instances should use the "auto" behavior,
;; Controls how to detect the public URL. Most instances should use the "auto" behavior,
;; especially when the Gitea instance needs to be accessed in a container network.
;; * legacy: detect the public URL from "Host" header if "X-Forwarded-Proto" header exists, otherwise use "ROOT_URL".
;; * auto: always use "Host" header, and also use "X-Forwarded-Proto" header if it exists. If no "Host" header, use "ROOT_URL".
;; * legacy: (default <= 1.25) detect the public URL from "Host" header if "X-Forwarded-Proto" header exists, otherwise use "ROOT_URL".
;; * auto: (default >= 1.26) always use "Host" header, and also use "X-Forwarded-Proto" header if it exists. If no "Host" header, use "ROOT_URL".
;; * never: always use "ROOT_URL", never detect from request headers.
;PUBLIC_URL_DETECTION = legacy
;PUBLIC_URL_DETECTION = auto
;;
;; For development purpose only. It makes Gitea handle sub-path ("/sub-path/owner/repo/...") directly when debugging without a reverse proxy.
;; DO NOT USE IT IN PRODUCTION!!!

2
modules/setting/server.go
View File

@@ -286,7 +286,7 @@ func loadServerFrom(rootCfg ConfigProvider) {
defaultAppURL := string(Protocol) + "://" + Domain + ":" + HTTPPort
AppURL = sec.Key("ROOT_URL").MustString(defaultAppURL)
PublicURLDetection = sec.Key("PUBLIC_URL_DETECTION").MustString(PublicURLLegacy)
PublicURLDetection = sec.Key("PUBLIC_URL_DETECTION").MustString(PublicURLAuto)
if PublicURLDetection != PublicURLAuto && PublicURLDetection != PublicURLLegacy && PublicURLDetection != PublicURLNever {
log.Fatal("Invalid PUBLIC_URL_DETECTION value: %s", PublicURLDetection)
}

23
routers/web/admin/admin_test.go
View File

@@ -13,6 +13,7 @@ import (
"code.gitea.io/gitea/services/contexttest"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestShadowPassword(t *testing.T) {
@@ -74,19 +75,29 @@ func TestShadowPassword(t *testing.T) {
}
func TestSelfCheckPost(t *testing.T) {
defer test.MockVariableValue(&setting.PublicURLDetection)()
defer test.MockVariableValue(&setting.AppURL, "http://config/sub/")()
defer test.MockVariableValue(&setting.AppSubURL, "/sub")()
ctx, resp := contexttest.MockContext(t, "GET http://host/sub/admin/self_check?location_origin=http://frontend")
SelfCheckPost(ctx)
assert.Equal(t, http.StatusOK, resp.Code)
data := struct {
Problems []string `json:"problems"`
}{}
err := json.Unmarshal(resp.Body.Bytes(), &data)
assert.NoError(t, err)
setting.PublicURLDetection = setting.PublicURLLegacy
ctx, resp := contexttest.MockContext(t, "GET http://host/sub/admin/self_check?location_origin=http://frontend")
SelfCheckPost(ctx)
assert.Equal(t, http.StatusOK, resp.Code)
require.NoError(t, json.Unmarshal(resp.Body.Bytes(), &data))
assert.Equal(t, []string{
ctx.Locale.TrString("admin.self_check.location_origin_mismatch", "http://frontend/sub/", "http://config/sub/"),
}, data.Problems)
setting.PublicURLDetection = setting.PublicURLAuto
ctx, resp = contexttest.MockContext(t, "GET http://host/sub/admin/self_check?location_origin=http://frontend")
SelfCheckPost(ctx)
assert.Equal(t, http.StatusOK, resp.Code)
require.NoError(t, json.Unmarshal(resp.Body.Bytes(), &data))
assert.Equal(t, []string{
ctx.Locale.TrString("admin.self_check.location_origin_mismatch", "http://frontend/sub/", "http://host/sub/"),
}, data.Problems)
}