rss-tools/app/atom.go (view raw)
| 1 | package app |
| 2 | |
| 3 | import ( |
| 4 | "encoding/xml" |
| 5 | "net/http" |
| 6 | "time" |
| 7 | ) |
| 8 | |
| 9 | type AtomFeed struct { |
| 10 | XMLName xml.Name `xml:"feed"` |
| 11 | XMLNS string `xml:"xmlns,attr"` |
| 12 | Title string `xml:"title"` |
| 13 | ID string `xml:"id"` |
| 14 | Updated string `xml:"updated"` |
| 15 | Entries []AtomEntry `xml:"entry"` |
| 16 | } |
| 17 | |
| 18 | type AtomEntry struct { |
| 19 | Title string `xml:"title"` |
| 20 | ID string `xml:"id"` |
| 21 | Updated string `xml:"updated"` |
| 22 | Content AtomContent `xml:"content"` |
| 23 | } |
| 24 | |
| 25 | type AtomContent struct { |
| 26 | XMLName xml.Name `xml:"content"` |
| 27 | Type string `xml:"type,attr,omitempty"` |
| 28 | Value string `xml:",chardata"` |
| 29 | } |
| 30 | |
| 31 | type FeedBuilder struct { |
| 32 | feed AtomFeed |
| 33 | } |
| 34 | |
| 35 | func NewFeed(title, id string) *FeedBuilder { |
| 36 | return &FeedBuilder{feed: AtomFeed{ |
| 37 | XMLNS: "http://www.w3.org/2005/Atom", |
| 38 | Title: title, |
| 39 | ID: id, |
| 40 | Updated: time.Now().Format(time.RFC3339), |
| 41 | }} |
| 42 | } |
| 43 | |
| 44 | func (f *FeedBuilder) Add(title, id, content string, date time.Time) *FeedBuilder { |
| 45 | f.feed.Entries = append(f.feed.Entries, AtomEntry{ |
| 46 | Title: title, |
| 47 | ID: id, |
| 48 | Updated: date.Format(time.RFC3339), |
| 49 | Content: content, |
| 50 | }) |
| 51 | return f |
| 52 | } |
| 53 | |
| 54 | func (f *FeedBuilder) Render(w http.ResponseWriter) error { |
| 55 | w.Header().Set("Content-Type", "application/atom+xml") |
| 56 | enc := xml.NewEncoder(w) |
| 57 | enc.Indent("", " ") |
| 58 | return enc.Encode(f.feed) |
| 59 | } |