78 lines
1.3 KiB
Go
78 lines
1.3 KiB
Go
package parser
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import (
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"encoding/xml"
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"fmt"
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)
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type FeedType string
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const (
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Rss FeedType = "rss"
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Atom FeedType = "atom"
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)
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type FeedEntry struct {
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Link string
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Content string
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}
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func ParseFeed(feedType FeedType, data []byte) ([]FeedEntry, error) {
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switch feedType {
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case Rss:
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return parseRss(data)
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case Atom:
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return parseAtom(data)
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}
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return nil, fmt.Errorf("Unknown feed type: %s", feedType)
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}
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func parseAtom(data []byte) ([]FeedEntry, error) {
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v := struct {
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Items []struct {
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Link struct {
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Href string `xml:"href,attr"`
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} `xml:"link"`
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Content string `xml:",innerxml"`
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} `xml:"entry"`
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}{}
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err := xml.Unmarshal(data, &v)
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if err != nil {
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return nil, err
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}
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var feedEntries []FeedEntry
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for _, atomEntry := range v.Items {
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feedEntries = append(feedEntries, FeedEntry{
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Link: atomEntry.Link.Href,
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Content: atomEntry.Content,
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})
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}
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return feedEntries, nil
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}
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func parseRss(data []byte) ([]FeedEntry, error) {
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v := struct {
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Items []struct {
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Link string `xml:"link"`
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Content string `xml:",innerxml"`
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} `xml:"channel>item"`
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}{}
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err := xml.Unmarshal(data, &v)
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if err != nil {
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return nil, err
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}
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var feedEntries []FeedEntry
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for _, rssEntry := range v.Items {
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feedEntries = append(feedEntries, FeedEntry{
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Link: rssEntry.Link,
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Content: rssEntry.Content,
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})
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}
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return feedEntries, nil
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}
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