owl-blogs/rss.go

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package owl
import (
"bytes"
"encoding/xml"
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"time"
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)
type RSS struct {
XMLName xml.Name `xml:"rss"`
Version string `xml:"version,attr"`
Channel RSSChannel `xml:"channel"`
}
type RSSChannel struct {
Title string `xml:"title"`
Link string `xml:"link"`
Description string `xml:"description"`
Items []RSSItem `xml:"item"`
}
type RSSItem struct {
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Guid string `xml:"guid"`
Title string `xml:"title"`
Link string `xml:"link"`
PubDate string `xml:"pubDate"`
Description string `xml:"description"`
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}
func RenderRSSFeed(user User) (string, error) {
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config := user.Config()
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rss := RSS{
Version: "2.0",
Channel: RSSChannel{
Title: config.Title,
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Link: user.FullUrl(),
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Description: config.SubTitle,
Items: make([]RSSItem, 0),
},
}
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posts, _ := user.Posts()
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for _, post := range posts {
meta := post.Meta()
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content, _ := renderPostContent(post)
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rss.Channel.Items = append(rss.Channel.Items, RSSItem{
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Guid: post.FullUrl(),
Title: post.Title(),
Link: post.FullUrl(),
PubDate: meta.Date.Format(time.RFC1123Z),
Description: content,
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})
}
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buf := new(bytes.Buffer)
err := xml.NewEncoder(buf).Encode(rss)
if err != nil {
return "", err
}
return xml.Header + buf.String(), nil
}