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