100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package bbclearn
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import (
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"fmt"
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"github.com/PuerkitoBio/goquery"
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strings2 "github.com/fthvgb1/wp-go/helper/strings"
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"github.com/fthvgb1/wp-go/rss2"
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"net/http"
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"strings"
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"time"
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)
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func LearnParse(s string, recentDay int) string {
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document, err := goquery.NewDocumentFromReader(strings.NewReader(s))
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if err != nil {
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return ""
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}
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var item []rss2.Item
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item = append(item, full(document, recentDay))
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item = append(item, items(document, recentDay)...)
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rss := rss2.Rss2{
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Title: "BBC 英语教学",
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Link: "https://www.bbc.co.uk/learningenglish/chinese/",
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LastBuildDate: time.Now().Format(time.RFC1123Z),
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Items: item,
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}
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return rss.GetXML()
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}
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func dateFilter(u string, recentDay int) (r bool) {
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uu := strings.Split(u, "-")
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if len(uu) < 2 {
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return
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}
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date, err := time.Parse("060102", uu[len(uu)-1])
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if err != nil {
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return
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}
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t := time.Now()
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if t.Year() != date.Year() || t.Month() != date.Month() {
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return
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}
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fmt.Println(time.Now().Day()-recentDay, date.Day())
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if t.Day()-recentDay > date.Day() {
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return
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}
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r = true
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return
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}
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func fetch(u string) (r rss2.Item) {
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res, err := http.Get(u)
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if err != nil {
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return
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}
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dom, err := goquery.NewDocumentFromReader(res.Body)
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if err != nil {
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return
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}
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s := dom.Find("#bbcle-content .widget-container-left")
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content, err := goquery.OuterHtml(s.Find(".widget-list,.widget-pagelink").Remove().End())
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if err != nil {
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return
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}
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r.Title = s.Find(`div[data-widget-index="3"] h3`).Text()
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r.PubDate = strings.TrimSpace(s.Find(".widget-bbcle-featuresubheader").Text())
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r.PubDate = strings2.Replace(r.PubDate, map[string]string{
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"\n": "",
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})
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r.PubDate = strings2.CutSpecialDuplicate(r.PubDate, " ")
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r.Guid = u
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r.Description = content
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return
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}
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func full(doc *goquery.Document, recentDay int) (r rss2.Item) {
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a := doc.Find("#bbcle-content .widget-container-full a")
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u, ok := a.Attr("href")
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if !ok {
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return
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}
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if !dateFilter(u, recentDay) {
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return
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}
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r = fetch(u)
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return
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}
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func items(doc *goquery.Document, recentDay int) (r []rss2.Item) {
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doc.Find("#bbcle-content > div > div.widget-container.widget-container-full > div.widget.widget-image.widget-image-two_column > div a").Each(func(i int, s *goquery.Selection) {
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u, ok := s.Attr("href")
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if !ok || !dateFilter(u, recentDay) {
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return
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}
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r = append(r, fetch(u))
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})
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return
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}
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