tyler/armbian-router
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Add chi for middleware, logging, fix x-forwarded headers
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This commit is contained in:
Tyler 2022-03-30 21:00:28 -04:00
parent 0fdb6911ca
commit 38ea55ccc2
5 changed files with 21 additions and 19 deletions
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1
go.mod
View File

@ -3,6 +3,7 @@ module meow.tf/armbian-router
go 1.17
require (
github.com/go-chi/chi/v5 v5.0.7
github.com/oschwald/maxminddb-golang v1.8.0
github.com/prometheus/client_golang v1.11.0
github.com/sirupsen/logrus v1.8.1

2
go.sum
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@ -16,6 +16,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/fsnotify/fsnotify v1.5.1 h1:mZcQUHVQUQWoPXXtuf9yuEXKudkV2sx1E06UadKWpgI=
github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
github.com/go-chi/chi/v5 v5.0.7 h1:rDTPXLDHGATaeHvVlLcR4Qe0zftYethFucbjVQ1PxU8=
github.com/go-chi/chi/v5 v5.0.7/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
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=

8
http.go
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@ -44,12 +44,6 @@ func redirectHandler(w http.ResponseWriter, r *http.Request) {
return
}
scheme := r.URL.Scheme
if scheme == "" {
scheme = "https"
}
redirectPath := path.Join(server.Path, r.URL.Path)
if dlMap != nil {
@ -60,7 +54,7 @@ func redirectHandler(w http.ResponseWriter, r *http.Request) {
}
u := &url.URL{
Scheme: scheme,
Scheme: realProto(r),
Host: server.Host,
Path: redirectPath,
}

21
main.go
View File

@ -1,6 +1,8 @@
package main
import (
"github.com/go-chi/chi/v5"
"github.com/go-chi/chi/v5/middleware"
"github.com/oschwald/maxminddb-golang"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
@ -92,16 +94,19 @@ func main() {
log.Info("Starting")
mux := http.NewServeMux()
r := chi.NewRouter()
mux.HandleFunc("/status", statusHandler)
mux.HandleFunc("/mirrors", mirrorsHandler)
mux.HandleFunc("/reload", reloadHandler)
mux.HandleFunc("/dl_map", dlMapHandler)
mux.Handle("/metrics", promhttp.Handler())
mux.HandleFunc("/", RealIPMiddleware(redirectHandler))
r.Use(RealIPMiddleware)
r.Use(middleware.Logger)
http.ListenAndServe(viper.GetString("bind"), mux)
r.HandleFunc("/status", statusHandler)
r.HandleFunc("/mirrors", mirrorsHandler)
r.HandleFunc("/reload", reloadHandler)
r.HandleFunc("/dl_map", dlMapHandler)
r.Handle("/metrics", promhttp.Handler())
r.HandleFunc("/", redirectHandler)
http.ListenAndServe(viper.GetString("bind"), r)
}
var metricReplacer = strings.NewReplacer(".", "_", "-", "_")

8
middleware.go
View File

@ -15,8 +15,8 @@ var (
// RealIPMiddleware is an implementation of reverse proxy checks.
// It uses the remote address to find the originating IP, as well as protocol
func RealIPMiddleware(f http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
func RealIPMiddleware(f http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Treat unix socket as 127.0.0.1
if r.RemoteAddr == "@" {
r.RemoteAddr = "127.0.0.1:0"
@ -29,7 +29,7 @@ func RealIPMiddleware(f http.HandlerFunc) http.HandlerFunc {
return
}
if net.ParseIP(host).IsPrivate() {
if !net.ParseIP(host).IsPrivate() {
f.ServeHTTP(w, r)
return
}
@ -43,7 +43,7 @@ func RealIPMiddleware(f http.HandlerFunc) http.HandlerFunc {
}
f.ServeHTTP(w, r)
}
})
}
func realIP(r *http.Request) string {