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// Copyright (c) 2019, Grégoire Duchêne <gduchene@awhk.org>
//
// Use of this source code is governed by the ISC license that can be
// found in the LICENSE file.
package main
import (
"go.awhk.org/go-import-redirect/internal"
"log"
"net/http"
"os"
"path"
)
func redirect(resp http.ResponseWriter, req *http.Request) {
if req.Method != "GET" {
resp.Header()["Allow"] = []string{"GET"}
resp.WriteHeader(http.StatusMethodNotAllowed)
return
}
pkg := path.Join(req.Host, req.URL.Path)
resp.Header()["Content-Type"] = []string{"text/html; charset=utf-8"}
if v, ok := req.URL.Query()["go-get"]; ok && len(v) > 0 && v[0] == "1" {
resp.WriteHeader(http.StatusOK)
} else {
resp.Header()["Location"] = []string{"https://godoc.org/" + pkg}
resp.WriteHeader(http.StatusFound)
}
resp.Write([]byte(internal.GetBody(pkg)))
}
func main() {
port := os.Getenv("PORT")
if port == "" {
port = "8080"
}
http.HandleFunc("/", redirect)
log.Fatal(http.ListenAndServe(os.Getenv("ADDR")+":"+port, nil))
}
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