mirror of
https://github.com/go-gitea/gitea
synced 2024-08-20 14:21:21 +02:00
70 lines
1.6 KiB
Go
70 lines
1.6 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package sitemap
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/xml"
|
|
"fmt"
|
|
"io"
|
|
"time"
|
|
)
|
|
|
|
// sitemapFileLimit contains the maximum size of a sitemap file
|
|
const sitemapFileLimit = 50 * 1024 * 1024
|
|
|
|
// Url represents a single sitemap entry
|
|
type URL struct {
|
|
URL string `xml:"loc"`
|
|
LastMod *time.Time `xml:"lastmod,omitempty"`
|
|
}
|
|
|
|
// SitemapUrl represents a sitemap
|
|
type Sitemap struct {
|
|
XMLName xml.Name
|
|
Namespace string `xml:"xmlns,attr"`
|
|
|
|
URLs []URL `xml:"url"`
|
|
}
|
|
|
|
// NewSitemap creates a sitemap
|
|
func NewSitemap() *Sitemap {
|
|
return &Sitemap{
|
|
XMLName: xml.Name{Local: "urlset"},
|
|
Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
|
|
}
|
|
}
|
|
|
|
// NewSitemap creates a sitemap index.
|
|
func NewSitemapIndex() *Sitemap {
|
|
return &Sitemap{
|
|
XMLName: xml.Name{Local: "sitemapindex"},
|
|
Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
|
|
}
|
|
}
|
|
|
|
// Add adds a URL to the sitemap
|
|
func (s *Sitemap) Add(u URL) {
|
|
s.URLs = append(s.URLs, u)
|
|
}
|
|
|
|
// Write writes the sitemap to a response
|
|
func (s *Sitemap) WriteTo(w io.Writer) (int64, error) {
|
|
if len(s.URLs) > 50000 {
|
|
return 0, fmt.Errorf("The sitemap contains too many URLs: %d", len(s.URLs))
|
|
}
|
|
buf := bytes.NewBufferString(xml.Header)
|
|
if err := xml.NewEncoder(buf).Encode(s); err != nil {
|
|
return 0, err
|
|
}
|
|
if err := buf.WriteByte('\n'); err != nil {
|
|
return 0, err
|
|
}
|
|
if buf.Len() > sitemapFileLimit {
|
|
return 0, fmt.Errorf("The sitemap is too big: %d", buf.Len())
|
|
}
|
|
return buf.WriteTo(w)
|
|
}
|