rss-tools/app/atom/feed.go (view raw)
Oleksandr Smirnov
Oleksandr Smirnov
olexsmir@gmail.com twitch: add channel link as feed site url, 4 days ago
olexsmir@gmail.com twitch: add channel link as feed site url, 4 days ago
| 1 | package atom |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "encoding/xml" |
| 6 | "io" |
| 7 | "net/http" |
| 8 | "strings" |
| 9 | "time" |
| 10 | ) |
| 11 | |
| 12 | func NewFeed(title, id string) *Feed { |
| 13 | return &Feed{ |
| 14 | Title: title, |
| 15 | ID: id, |
| 16 | Updated: Time(time.Now()), |
| 17 | Author: []*Person{{Name: "rss-tools"}}, |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | func (f *Feed) WithAuthor(name string) *Feed { |
| 22 | name = strings.TrimSpace(name) |
| 23 | if name == "" { |
| 24 | return f |
| 25 | } |
| 26 | f.Author = []*Person{{Name: name}} |
| 27 | return f |
| 28 | } |
| 29 | |
| 30 | func (f *Feed) WithUpdated(updated time.Time) *Feed { |
| 31 | if !updated.IsZero() { |
| 32 | f.Updated = Time(updated) |
| 33 | } |
| 34 | return f |
| 35 | } |
| 36 | |
| 37 | func (f *Feed) WithLink(rel, href string) *Feed { |
| 38 | if href != "" { |
| 39 | f.Link = append(f.Link, Link{Rel: rel, Href: href}) |
| 40 | } |
| 41 | return f |
| 42 | } |
| 43 | |
| 44 | func (f *Feed) Add(entry *Entry) *Feed { |
| 45 | if entry != nil { |
| 46 | f.Entry = append(f.Entry, entry) |
| 47 | } |
| 48 | return f |
| 49 | } |
| 50 | |
| 51 | func (f *Feed) WriteTo(w io.Writer) error { |
| 52 | enc := xml.NewEncoder(w) |
| 53 | enc.Indent("", " ") |
| 54 | return enc.Encode(f) |
| 55 | } |
| 56 | |
| 57 | func (f *Feed) Bytes() ([]byte, error) { |
| 58 | var buf bytes.Buffer |
| 59 | if err := f.WriteTo(&buf); err != nil { |
| 60 | return nil, err |
| 61 | } |
| 62 | return buf.Bytes(), nil |
| 63 | } |
| 64 | |
| 65 | func (f *Feed) Render(w http.ResponseWriter) error { |
| 66 | w.Header().Set("Content-Type", "application/atom+xml; charset=utf-8") |
| 67 | return f.WriteTo(w) |
| 68 | } |
| 69 | |
| 70 | func NewText(body, typ string) *Text { |
| 71 | if body == "" && strings.TrimSpace(typ) == "" { |
| 72 | return nil |
| 73 | } |
| 74 | if strings.TrimSpace(typ) == "" { |
| 75 | typ = "text" |
| 76 | } |
| 77 | return &Text{Type: typ, Body: body} |
| 78 | } |