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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// This file contains the handlers that serve go-import redirects for Go
// sub-repositories. It specifies the mapping from import paths like
// "golang.org/x/tools" to the actual repository locations.
package main
import ( "html/template" "log" "net/http" "strings")
const xPrefix = "/x/"
type xRepo struct { URL, VCS string}
var xMap = map[string]xRepo{ "codereview": {"https://code.google.com/p/go.codereview", "hg"},
"arch": {"https://go.googlesource.com/arch", "git"}, "benchmarks": {"https://go.googlesource.com/benchmarks", "git"}, "blog": {"https://go.googlesource.com/blog", "git"}, "build": {"https://go.googlesource.com/build", "git"}, "crypto": {"https://go.googlesource.com/crypto", "git"}, "debug": {"https://go.googlesource.com/debug", "git"}, "exp": {"https://go.googlesource.com/exp", "git"}, "image": {"https://go.googlesource.com/image", "git"}, "mobile": {"https://go.googlesource.com/mobile", "git"}, "net": {"https://go.googlesource.com/net", "git"}, "oauth2": {"https://go.googlesource.com/oauth2", "git"}, "perf": {"https://go.googlesource.com/perf", "git"}, "playground": {"https://go.googlesource.com/playground", "git"}, "review": {"https://go.googlesource.com/review", "git"}, "sync": {"https://go.googlesource.com/sync", "git"}, "sys": {"https://go.googlesource.com/sys", "git"}, "talks": {"https://go.googlesource.com/talks", "git"}, "term": {"https://go.googlesource.com/term", "git"}, "text": {"https://go.googlesource.com/text", "git"}, "time": {"https://go.googlesource.com/time", "git"}, "tools": {"https://go.googlesource.com/tools", "git"}, "tour": {"https://go.googlesource.com/tour", "git"},}
func init() { http.HandleFunc(xPrefix, xHandler)}
func xHandler(w http.ResponseWriter, r *http.Request) { head, tail := strings.TrimPrefix(r.URL.Path, xPrefix), "" if i := strings.Index(head, "/"); i != -1 { head, tail = head[:i], head[i:] } if head == "" { http.Redirect(w, r, "https://godoc.org/-/subrepo", http.StatusTemporaryRedirect) return } repo, ok := xMap[head] if !ok { http.NotFound(w, r) return } data := struct { Prefix, Head, Tail string Repo xRepo }{xPrefix, head, tail, repo} if err := xTemplate.Execute(w, data); err != nil { log.Println("xHandler:", err) }}
var xTemplate = template.Must(template.New("x").Parse(`<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><meta name="go-import" content="golang.org{{.Prefix}}{{.Head}} {{.Repo.VCS}} {{.Repo.URL}}"><meta name="go-source" content="golang.org{{.Prefix}}{{.Head}} https://github.com/golang/{{.Head}}/ https://github.com/golang/{{.Head}}/tree/master{/dir} https://github.com/golang/{{.Head}}/blob/master{/dir}/{file}#L{line}"><meta http-equiv="refresh" content="0; url=https://godoc.org/golang.org{{.Prefix}}{{.Head}}{{.Tail}}"></head><body>Nothing to see here; <a href="https://godoc.org/golang.org{{.Prefix}}{{.Head}}{{.Tail}}">move along</a>.</body></html>`))
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