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Fix sitemap (#22272)

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Fix #22270.

Related to #18407.

The old code treated both sitemap and sitemap index as the format like:

```xml
...
<url>
  <loc>http://localhost:3000/explore/users/sitemap-1.xml</loc>
</url>
...
```

Actually, it's incorrect for sitemap index, it should be:

```xml
...
<sitemap>
  <loc>http://localhost:3000/explore/users/sitemap-1.xml</loc>
</sitemap>
...
```

See https://www.sitemaps.org/protocol.html

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: delvh <dev.lh@web.de>
This commit is contained in:
Jason Song
2022-12-30 23:31:00 +08:00
committed by GitHub
parent 9dcaf14a14
commit d34f3a2213
2 changed files with 171 additions and 67 deletions
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44
modules/sitemap/sitemap.go
View File

@@ -11,48 +11,62 @@ import (
"time"
)
// sitemapFileLimit contains the maximum size of a sitemap file
const sitemapFileLimit = 50 * 1024 * 1024
const (
sitemapFileLimit = 50 * 1024 * 1024 // the maximum size of a sitemap file
urlsLimit = 50000
// Url represents a single sitemap entry
schemaURL = "http://www.sitemaps.org/schemas/sitemap/0.9"
urlsetName = "urlset"
sitemapindexName = "sitemapindex"
)
// URL represents a single sitemap entry
type URL struct {
URL string `xml:"loc"`
LastMod *time.Time `xml:"lastmod,omitempty"`
}
// SitemapUrl represents a sitemap
// Sitemap represents a sitemap
type Sitemap struct {
XMLName xml.Name
Namespace string `xml:"xmlns,attr"`
URLs []URL `xml:"url"`
URLs []URL `xml:"url"`
Sitemaps []URL `xml:"sitemap"`
}
// NewSitemap creates a sitemap
func NewSitemap() *Sitemap {
return &Sitemap{
XMLName: xml.Name{Local: "urlset"},
Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
XMLName: xml.Name{Local: urlsetName},
Namespace: schemaURL,
}
}
// NewSitemap creates a sitemap index.
// NewSitemapIndex creates a sitemap index.
func NewSitemapIndex() *Sitemap {
return &Sitemap{
XMLName: xml.Name{Local: "sitemapindex"},
Namespace: "http://www.sitemaps.org/schemas/sitemap/0.9",
XMLName: xml.Name{Local: sitemapindexName},
Namespace: schemaURL,
}
}
// Add adds a URL to the sitemap
func (s *Sitemap) Add(u URL) {
s.URLs = append(s.URLs, u)
if s.XMLName.Local == sitemapindexName {
s.Sitemaps = append(s.Sitemaps, u)
} else {
s.URLs = append(s.URLs, u)
}
}
// Write writes the sitemap to a response
// WriteTo 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))
if l := len(s.URLs); l > urlsLimit {
return 0, fmt.Errorf("The sitemap contains %d URLs, but only %d are allowed", l, urlsLimit)
}
if l := len(s.Sitemaps); l > urlsLimit {
return 0, fmt.Errorf("The sitemap contains %d sub-sitemaps, but only %d are allowed", l, urlsLimit)
}
buf := bytes.NewBufferString(xml.Header)
if err := xml.NewEncoder(buf).Encode(s); err != nil {
@@ -62,7 +76,7 @@ func (s *Sitemap) WriteTo(w io.Writer) (int64, error) {
return 0, err
}
if buf.Len() > sitemapFileLimit {
return 0, fmt.Errorf("The sitemap is too big: %d", buf.Len())
return 0, fmt.Errorf("The sitemap has %d bytes, but only %d are allowed", buf.Len(), sitemapFileLimit)
}
return buf.WriteTo(w)
}