rss.go

/*
Simple RSS parser, tested with Wordpress feeds.
*/
package rss

import (
	"encoding/xml"
	"io/ioutil"
	"net/http"
)

type Channel struct {
	Title         string  `xml:"title"`
	Link          string  `xml:"link"`
	Description   string  `xml:"description"`
	Language      string  `xml:"language"`
	LastBuildDate string  `xml:"lastBuildDate"`
	Item          []*Item `xml:"item"`
}

type ItemEnclosure struct {
	URL  string `xml:"url,attr"`
	Type string `xml:"type,attr"`
}

type Item struct {
	Title       string         `xml:"title"`
	Link        string         `xml:"link"`
	Comments    string         `xml:"comments"`
	PubDate     string         `xml:"pubDate"`
	GUID        string         `xml:"guid"`
	Category    []string       `xml:"category"`
	Enclosure   *ItemEnclosure `xml:"enclosure"`
	Description string         `xml:"description"`
	Content     string         `xml:"content"`
}

func Read(url string) (*Channel, error) {
	response, err := http.Get(url)

	if err != nil {
		return nil, err
	}

	defer response.Body.Close()
	text, err := ioutil.ReadAll(response.Body)

	if err != nil {
		return nil, err
	}

	var rss struct {
		Channel *Channel `xml:"channel"`
	}

	err = xml.Unmarshal(text, &rss)

	if err != nil {
		return nil, err
	}

	return rss.Channel, nil
}