95 lines
2.2 KiB
Go
95 lines
2.2 KiB
Go
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package main
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import (
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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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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(today, forwardDay int, s 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(time.RFC1123Z, da[1])
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if err != nil {
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return s
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}
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if today-forwardDay > t.Day() {
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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, today, recentDay int) string {
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return zhihuReg.ReplaceAllStringFunc(html, func(s string) string {
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return dayLimit(today, recentDay, s)
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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().Day(), 1)
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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().Day(), 0)
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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, 1)
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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().Day(), 1)
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}))
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}
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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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http.HandleFunc("/pentitugua", penti)
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http.HandleFunc("/zhihuDaily", zhihuDaily)
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http.HandleFunc("/tjxz", tjxz)
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http.HandleFunc("/bbcLearn", bbcLearn)
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http.HandleFunc("/theNewYorker", theNewYorker)
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log.Fatal(http.ListenAndServe(port, nil))
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}
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