114 lines
2.9 KiB
Go
114 lines
2.9 KiB
Go
package main
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import (
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str "github.com/fthvgb1/wp-go/helper/strings"
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"io"
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"log"
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"net/http"
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"os"
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"regexp"
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"rss/bbclearn"
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"strings"
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"time"
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)
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var zhihuReg = regexp.MustCompile(`(?is:(<item>(.*?)</item>))`)
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var date = regexp.MustCompile(`<pubDate>(.*)</pubDate>`)
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func fetch(u string, fn ...func(s string) string) string {
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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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s, err := io.ReadAll(res.Body)
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if err != nil {
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return ""
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}
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defer res.Body.Close()
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html := string(s)
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for _, f := range fn {
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html = f(html)
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}
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return html
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}
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func dayLimit(now time.Time, forwardDay int, s, format string) string {
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da := date.FindStringSubmatch(s)
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if len(da) <= 1 {
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return s
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}
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t, err := time.Parse(format, da[1])
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if err != nil {
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return s
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}
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day := now.Sub(t).Hours() / 24
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if day-float64(forwardDay) > 0 {
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return ""
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}
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return s
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}
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func filterItem(html string, now time.Time, recentDay int) string {
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return zhihuReg.ReplaceAllStringFunc(html, func(s string) string {
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return dayLimit(now, recentDay, s, time.RFC1123Z)
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})
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}
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func penti(w http.ResponseWriter, req *http.Request) {
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io.WriteString(w, fetch("https://feedx.best/rss/pentitugua.xml", func(s string) string {
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return strings.ReplaceAll(s, "www.dapenti.com:99", "imgc.1see.org")
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}))
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}
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func zhihuDaily(w http.ResponseWriter, req *http.Request) {
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io.WriteString(w, fetch("https://feedx.best/rss/zhihudaily.xml", func(s string) string {
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return filterItem(s, time.Now(), recentDay)
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}))
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}
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func tjxz(w http.ResponseWriter, r *http.Request) {
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io.WriteString(w, fetch("https://feedx.best/rss/tjxz.xml", func(s string) string {
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return filterItem(s, time.Now(), recentDay)
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}))
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}
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func bbcLearn(w http.ResponseWriter, _ *http.Request) {
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io.WriteString(w, fetch("https://www.bbc.co.uk/learningenglish/chinese", func(s string) string {
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return bbclearn.LearnParse(s, recentDay)
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}))
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}
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func theNewYorker(w http.ResponseWriter, r *http.Request) {
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io.WriteString(w, fetch("https://feedx.best/rss/newyorker.xml", func(s string) string {
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return filterItem(s, time.Now(), recentDay)
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}))
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}
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func voaLearnEnglish(w http.ResponseWriter, r *http.Request) {
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io.WriteString(w, fetch("https://feedx.best/rss/voalearningenglish.xml", func(s string) string {
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return filterItem(s, time.Now(), recentDay)
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}))
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}
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var recentDay = 1
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func main() {
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port := os.Getenv("port")
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if port == "" {
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port = ":80"
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}
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day := os.Getenv("rss_recent_day")
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if day != "" {
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recentDay = str.ToInt[int](day)
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}
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time.Local = time.FixedZone("CST", 3600*8)
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http.HandleFunc("/pentitugua", penti) //喷嚏图挂
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http.HandleFunc("/zhihuDaily", zhihuDaily) //知乎日报
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http.HandleFunc("/tjxz", tjxz) //田间小站
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http.HandleFunc("/bbcLearn", bbcLearn) //bbc 英语学习
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http.HandleFunc("/theNewYorker", theNewYorker) //纽约客
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http.HandleFunc("/voaLearnEnglish", voaLearnEnglish) //VOA Learning English
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log.Fatal(http.ListenAndServe(port, nil))
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}
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