ref: c4989c39f1b29b82475fd350d91af7b5c2c19bf5
dir: /hugolib/alias.go/
// Copyright 2017 The Hugo Authors. 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.
package hugolib
import (
"bytes"
"html/template"
"io"
)
const (
alias = "<!DOCTYPE html><html><head><title>{{ .Permalink }}</title><link rel=\"canonical\" href=\"{{ .Permalink }}\"/><meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\" /><meta http-equiv=\"refresh\" content=\"0; url={{ .Permalink }}\" /></head></html>"
aliasXHtml = "<!DOCTYPE html><html xmlns=\"http://www.w3.org/1999/xhtml\"><head><title>{{ .Permalink }}</title><link rel=\"canonical\" href=\"{{ .Permalink }}\"/><meta http-equiv=\"content-type\" content=\"text/html; charset=utf-8\" /><meta http-equiv=\"refresh\" content=\"0; url={{ .Permalink }}\" /></head></html>"
)
var defaultAliasTemplates *template.Template
func init() {
defaultAliasTemplates = template.New("")
template.Must(defaultAliasTemplates.New("alias").Parse(alias))
template.Must(defaultAliasTemplates.New("alias-xhtml").Parse(aliasXHtml))
}
type aliasHandler struct {
Templates *template.Template
}
func newAliasHandler(t *template.Template) aliasHandler {
return aliasHandler{t}
}
func (a aliasHandler) renderAlias(isXHTML bool, permalink string, page *Page) (io.Reader, error) {
t := "alias"
if isXHTML {
t = "alias-xhtml"
}
template := defaultAliasTemplates
if a.Templates != nil {
template = a.Templates
t = "alias.html"
}
data := struct {
Permalink string
Page *Page
}{
permalink,
page,
}
buffer := new(bytes.Buffer)
err := template.ExecuteTemplate(buffer, t, data)
if err != nil {
return nil, err
}
return buffer, nil
}