c04bf0744a
VCSroot should point to a repository, not to the package full path. git-svn-id: file:///srv/svn/repo/toyohime/trunk@67 922d331f-388e-da47-97a9-ad700dc0b8b9
83 lines
1.9 KiB
Go
83 lines
1.9 KiB
Go
package vanity // import "kkn.fi/vanity"
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import (
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"bytes"
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"html/template"
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"net/http"
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"strings"
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)
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type data struct {
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ImportRoot string
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VCS string
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VCSRoot string
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}
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var tmpl = template.Must(template.New("main").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="{{.ImportRoot}} {{.VCS}} {{.VCSRoot}}">
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</head>
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</html>
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`))
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// Redirect is a HTTP middleware that redirects browsers to godoc.org or
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// Go tool to VCS repository.
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func Redirect(vcs, importPath, repoRoot string) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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if r.URL.Scheme == "http" {
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r.URL.Scheme = "https"
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http.Redirect(w, r, r.URL.String(), http.StatusMovedPermanently)
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return
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}
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if r.Method != http.MethodGet {
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status := http.StatusMethodNotAllowed
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http.Error(w, http.StatusText(status), status)
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return
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}
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path := strings.TrimSuffix(r.URL.Path, "/")
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if !strings.HasPrefix(strings.TrimSuffix(r.Host+r.URL.Path, "/"), importPath+"/") {
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http.NotFound(w, r)
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return
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}
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vcsroot := repoRoot
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if strings.HasPrefix(r.URL.Path, "/cmd/") {
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path = r.URL.Path[4:]
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} else {
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path = r.URL.Path
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}
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shortPath := strings.Split(path, "/")
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f := func(c rune) bool {
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return c == '/'
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}
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shortPath = strings.FieldsFunc(path, f)
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if (len(shortPath) > 0) {
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vcsroot = repoRoot + "/" + shortPath[0]
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}
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if r.FormValue("go-get") != "1" {
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url := "https://godoc.org/" + r.Host + r.URL.Path
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http.Redirect(w, r, url, http.StatusTemporaryRedirect)
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return
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}
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d := &data{
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ImportRoot: r.Host + r.URL.Path,
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VCS: vcs,
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VCSRoot: vcsroot,
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}
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var buf bytes.Buffer
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err := tmpl.Execute(&buf, d)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Cache-Control", "public, max-age=300")
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w.Write(buf.Bytes())
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})
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}
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