1//
 2// Copyright (c) 2018 Ted Unangst <tedu@tedunangst.com>
 3//
 4// Permission to use, copy, modify, and distribute this software for any
 5// purpose with or without fee is hereby granted, provided that the above
 6// copyright notice and this permission notice appear in all copies.
 7//
 8// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 9// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15
16package main
17
18import (
19	"encoding/xml"
20	"io"
21)
22
23type Rss struct {
24	XMLName xml.Name `xml:"rss"`
25	Version string   `xml:"version,attr"`
26	Feed    *RssFeed
27}
28
29type RssFeed struct {
30	XMLName     xml.Name `xml:"channel"`
31	Title       string   `xml:"title"`
32	Link        string   `xml:"link"`
33	Description string   `xml:"description"`
34	FeedImage   *RssFeedImage
35	Items       []*RssItem
36}
37
38type RssFeedImage struct {
39	XMLName xml.Name `xml:"image"`
40	URL     string   `xml:"url"`
41	Title   string   `xml:"title"`
42	Link    string   `xml:"link"`
43}
44
45type RssItem struct {
46	XMLName     xml.Name `xml:"item"`
47	Title       string   `xml:"title"`
48	Description RssCData `xml:"description"`
49	Link        string   `xml:"link"`
50	PubDate     string   `xml:"pubDate"`
51}
52
53type RssCData struct {
54	Data string `xml:",cdata"`
55}
56
57func (fd *RssFeed) Write(w io.Writer) error {
58	r := Rss{Version: "2.0", Feed: fd}
59	io.WriteString(w, xml.Header)
60	enc := xml.NewEncoder(w)
61	enc.Indent("", "  ")
62	err := enc.Encode(r)
63	io.WriteString(w, "\n")
64	return err
65}