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internal: set ETag header on static resources to reduce cache issues

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Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

#3456
This commit is contained in:
Jens Langhammer 2022-09-11 23:18:31 +02:00
parent 73019c0732
commit 53f224300b
3 changed files with 13 additions and 2 deletions
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3
go.mod
View file

@ -42,6 +42,9 @@ require (
github.com/felixge/httpsnoop v1.0.1 // indirect
github.com/garyburd/redigo v1.6.2 // indirect
github.com/go-asn1-ber/asn1-ber v1.5.4 // indirect
github.com/go-http-utils/etag v0.0.0-20161124023236-513ea8f21eb1 // indirect
github.com/go-http-utils/fresh v0.0.0-20161124030543-7231e26a4b27 // indirect
github.com/go-http-utils/headers v0.0.0-20181008091004-fed159eddc2a // indirect
github.com/go-openapi/analysis v0.21.2 // indirect
github.com/go-openapi/errors v0.20.2 // indirect
github.com/go-openapi/jsonpointer v0.19.5 // indirect

6
go.sum
View file

@ -85,6 +85,12 @@ github.com/go-errors/errors v1.0.1 h1:LUHzmkK3GUKUrL/1gfBUxAHzcev3apQlezX/+O7ma6
github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
github.com/go-http-utils/etag v0.0.0-20161124023236-513ea8f21eb1 h1:zga7zaRE8HCbWjcXMDlfvmQtH0/kMVLo7cQ48dy6kWg=
github.com/go-http-utils/etag v0.0.0-20161124023236-513ea8f21eb1/go.mod h1:PumS+5d59wmAGsZo6IfRpVNaJUq+6xjC4Utt/k8GO6Q=
github.com/go-http-utils/fresh v0.0.0-20161124030543-7231e26a4b27 h1:O6yi4xa9b2DMosGsXzlMe2E9qXgXCVkRLCoRX+5amxI=
github.com/go-http-utils/fresh v0.0.0-20161124030543-7231e26a4b27/go.mod h1:AYvN8omj7nKLmbcXS2dyABYU6JB1Lz1bHmkkq1kf4I4=
github.com/go-http-utils/headers v0.0.0-20181008091004-fed159eddc2a h1:v6zMvHuY9yue4+QkG/HQ/W67wvtQmWJ4SDo9aK/GIno=
github.com/go-http-utils/headers v0.0.0-20181008091004-fed159eddc2a/go.mod h1:I79BieaU4fxrw4LMXby6q5OS9XnoR9UIKLOzDFjUmuw=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=

6
internal/web/static.go
View file

@ -4,6 +4,7 @@ import (
"fmt"
"net/http"
"github.com/go-http-utils/etag"
"github.com/gorilla/mux"
"goauthentik.io/internal/config"
"goauthentik.io/internal/constants"
@ -58,10 +59,11 @@ func (ws *WebServer) configureStatic() {
}
func (ws *WebServer) staticHeaderMiddleware(h http.Handler) http.Handler {
etagHandler := etag.Handler(h, false)
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Cache-Control", "\"public, no-transform\"")
w.Header().Set("X-authentik-version", constants.VERSION)
w.Header().Set("Vary", "X-authentik-version")
h.ServeHTTP(w, r)
w.Header().Set("Vary", "X-authentik-version, Etag")
etagHandler.ServeHTTP(w, r)
})
}