2017-07-05 22:46:56 +02:00
|
|
|
// Copyright 2017 Google Inc. All Rights Reserved.
|
|
|
|
|
//
|
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
|
// you may not use this file except in compliance with the License.
|
|
|
|
|
// You may obtain a copy of the License at
|
|
|
|
|
//
|
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
//
|
|
|
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
|
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
|
// See the License for the specific language governing permissions and
|
|
|
|
|
// limitations under the License.
|
|
|
|
|
|
|
|
|
|
// govanityurls serves Go vanity URLs.
|
|
|
|
|
package main
|
|
|
|
|
|
|
|
|
|
import (
|
|
|
|
|
"fmt"
|
|
|
|
|
"html/template"
|
|
|
|
|
"net/http"
|
|
|
|
|
"strings"
|
|
|
|
|
|
|
|
|
|
"gopkg.in/yaml.v2"
|
|
|
|
|
)
|
|
|
|
|
|
|
|
|
|
type handler struct {
|
|
|
|
|
host string
|
|
|
|
|
m map[string]*struct {
|
|
|
|
|
Repo string `yaml:"repo,omitempty"`
|
|
|
|
|
Display string `yaml:"display,omitempty"`
|
2017-07-06 19:18:53 +02:00
|
|
|
VCS string `yaml:"vcs,omitempty"`
|
2017-07-05 22:46:56 +02:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func newHandler(config []byte) (*handler, error) {
|
|
|
|
|
h := new(handler)
|
|
|
|
|
if err := yaml.Unmarshal(config, &h.m); err != nil {
|
|
|
|
|
return nil, err
|
|
|
|
|
}
|
2017-07-06 19:18:53 +02:00
|
|
|
for path, e := range h.m {
|
|
|
|
|
switch {
|
|
|
|
|
case e.Display != "":
|
|
|
|
|
// Already filled in.
|
|
|
|
|
case strings.HasPrefix(e.Repo, "https://github.com/"):
|
2017-07-05 22:46:56 +02:00
|
|
|
e.Display = fmt.Sprintf("%v %v/tree/master{/dir} %v/blob/master{/dir}/{file}#L{line}", e.Repo, e.Repo, e.Repo)
|
2017-07-06 19:18:53 +02:00
|
|
|
case strings.HasPrefix(e.Repo, "https://bitbucket.org"):
|
|
|
|
|
e.Display = fmt.Sprintf("%v %v/src/default{/dir} %v/src/default{/dir}/{file}#{file}-{line}", e.Repo, e.Repo, e.Repo)
|
|
|
|
|
}
|
|
|
|
|
switch {
|
|
|
|
|
case e.VCS != "":
|
|
|
|
|
// Already filled in.
|
|
|
|
|
if e.VCS != "bzr" && e.VCS != "git" && e.VCS != "hg" && e.VCS != "svn" {
|
|
|
|
|
return nil, fmt.Errorf("configuration for %v: unknown VCS %s", path, e.VCS)
|
|
|
|
|
}
|
|
|
|
|
case strings.HasPrefix(e.Repo, "https://github.com/"):
|
|
|
|
|
e.VCS = "git"
|
|
|
|
|
default:
|
|
|
|
|
return nil, fmt.Errorf("configuration for %v: cannot infer VCS from %s", path, e.Repo)
|
2017-07-05 22:46:56 +02:00
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return h, nil
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
|
|
|
current := r.URL.Path
|
|
|
|
|
p, ok := h.m[current]
|
|
|
|
|
if !ok {
|
|
|
|
|
http.NotFound(w, r)
|
|
|
|
|
return
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
host := h.host
|
|
|
|
|
if host == "" {
|
|
|
|
|
host = requestHost(r)
|
|
|
|
|
}
|
|
|
|
|
if err := vanityTmpl.Execute(w, struct {
|
|
|
|
|
Import string
|
|
|
|
|
Repo string
|
|
|
|
|
Display string
|
2017-07-06 19:18:53 +02:00
|
|
|
VCS string
|
2017-07-05 22:46:56 +02:00
|
|
|
}{
|
|
|
|
|
Import: host + current,
|
|
|
|
|
Repo: p.Repo,
|
|
|
|
|
Display: p.Display,
|
2017-07-06 19:18:53 +02:00
|
|
|
VCS: p.VCS,
|
2017-07-05 22:46:56 +02:00
|
|
|
}); err != nil {
|
|
|
|
|
http.Error(w, "cannot render the page", http.StatusInternalServerError)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
var vanityTmpl = template.Must(template.New("vanity").Parse(`<!DOCTYPE html>
|
|
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
|
2017-07-06 19:18:53 +02:00
|
|
|
<meta name="go-import" content="{{.Import}} {{.VCS}} {{.Repo}}">
|
2017-07-05 22:46:56 +02:00
|
|
|
<meta name="go-source" content="{{.Import}} {{.Display}}">
|
|
|
|
|
<meta http-equiv="refresh" content="0; url=https://godoc.org/{{.Import}}">
|
|
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
Nothing to see here; <a href="https://godoc.org/{{.Import}}">see the package on godoc</a>.
|
|
|
|
|
</body>
|
|
|
|
|
</html>`))
|
