mirror of https://github.com/go-gitea/gitea.git
Add sitemap support (#18407)
Daniil Gentili
3 years ago
committed by
GitHub
parent
97bfabc745
commit
95383b7a16
@ -0,0 +1,69 @@
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package sitemap
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import (
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"bytes"
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"encoding/xml"
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"fmt"
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"io"
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"time"
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)
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// sitemapFileLimit contains the maximum size of a sitemap file
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const sitemapFileLimit = 50 * 1024 * 1024
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// Url represents a single sitemap entry
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type URL struct {
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URL string `xml:"loc"`
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LastMod *time.Time `xml:"lastmod,omitempty"`
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}
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// SitemapUrl represents a sitemap
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type Sitemap struct {
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XMLName xml.Name
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Namespace string `xml:"xmlns,attr"`
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URLs []URL `xml:"url"`
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}
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// NewSitemap creates a sitemap
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func NewSitemap() *Sitemap {
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return &Sitemap{
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XMLName: xml.Name{Local: "urlset"},
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Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
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}
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}
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// NewSitemap creates a sitemap index.
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func NewSitemapIndex() *Sitemap {
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return &Sitemap{
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XMLName: xml.Name{Local: "sitemapindex"},
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Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
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}
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}
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// Add adds a URL to the sitemap
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func (s *Sitemap) Add(u URL) {
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s.URLs = append(s.URLs, u)
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}
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// Write writes the sitemap to a response
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func (s *Sitemap) WriteTo(w io.Writer) (int64, error) {
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if len(s.URLs) > 50000 {
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return 0, fmt.Errorf("The sitemap contains too many URLs: %d", len(s.URLs))
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}
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buf := bytes.NewBufferString(xml.Header)
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if err := xml.NewEncoder(buf).Encode(s); err != nil {
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return 0, err
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}
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if err := buf.WriteByte('\n'); err != nil {
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return 0, err
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}
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if buf.Len() > sitemapFileLimit {
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return 0, fmt.Errorf("The sitemap is too big: %d", buf.Len())
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}
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return buf.WriteTo(w)
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}
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@ -0,0 +1,77 @@
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// Copyright 2022 The Gitea Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package sitemap
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import (
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"bytes"
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"encoding/xml"
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"fmt"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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)
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func TestOk(t *testing.T) {
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testReal := func(s *Sitemap, name string, urls []URL, expected string) {
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for _, url := range urls {
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s.Add(url)
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}
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buf := &bytes.Buffer{}
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_, err := s.WriteTo(buf)
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assert.NoError(t, nil, err)
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assert.Equal(t, xml.Header+"<"+name+" xmlns=\"http://www.sitemaps.org/schemas/sitemap/0.9\">"+expected+"</"+name+">\n", buf.String())
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}
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test := func(urls []URL, expected string) {
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testReal(NewSitemap(), "urlset", urls, expected)
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testReal(NewSitemapIndex(), "sitemapindex", urls, expected)
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}
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ts := time.Unix(1651322008, 0).UTC()
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test(
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[]URL{},
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"",
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)
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test(
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[]URL{
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{URL: "https://gitea.io/test1", LastMod: &ts},
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},
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"<url><loc>https://gitea.io/test1</loc><lastmod>2022-04-30T12:33:28Z</lastmod></url>",
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)
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test(
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[]URL{
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{URL: "https://gitea.io/test2", LastMod: nil},
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},
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"<url><loc>https://gitea.io/test2</loc></url>",
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)
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test(
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[]URL{
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{URL: "https://gitea.io/test1", LastMod: &ts},
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{URL: "https://gitea.io/test2", LastMod: nil},
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},
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"<url><loc>https://gitea.io/test1</loc><lastmod>2022-04-30T12:33:28Z</lastmod></url>"+
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"<url><loc>https://gitea.io/test2</loc></url>",
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)
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}
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func TestTooManyURLs(t *testing.T) {
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s := NewSitemap()
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for i := 0; i < 50001; i++ {
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s.Add(URL{URL: fmt.Sprintf("https://gitea.io/test%d", i)})
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}
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buf := &bytes.Buffer{}
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_, err := s.WriteTo(buf)
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assert.EqualError(t, err, "The sitemap contains too many URLs: 50001")
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}
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func TestSitemapTooBig(t *testing.T) {
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s := NewSitemap()
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s.Add(URL{URL: strings.Repeat("b", sitemapFileLimit)})
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buf := &bytes.Buffer{}
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_, err := s.WriteTo(buf)
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assert.EqualError(t, err, "The sitemap is too big: 52428931")
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}
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