package main import ( "fmt" "log" "regexp" "strings" "time" "github.com/ekzyis/sn-goapi" ) var ( TwitterUrlRegexp = regexp.MustCompile(`^(?:https?:\/\/)?((www\.)?(twitter|x)\.com)\/`) // references: // - https://github.com/zedeus/nitter/wiki/Instances // - https://status.d420.de/ NitterClearnetUrls = []string{ "nitter.net", "nitter.it", "nitter.cz", "nitter.at", "nitter.unixfox.eu", "nitter.poast.org", "nitter.privacydev.net", "nitter.d420.de", "nitter.sethforprivacy.com", "nitter.nicfab.eu", "bird.habedieeh.re", "nitter.salastil.com", "nt.ggtyler.dev", } NitterOnionUrls = []string{ "nitter7bryz3jv7e3uekphigvmoyoem4al3fynerxkj22dmoxoq553qd.onion", "26oq3gioiwcmfojub37nz5gzbkdiqp7fue5kvye7d4txv4ny6fb4wwid.onion", "vfaomgh4jxphpbdfizkm5gbtjahmei234giqj4facbwhrfjtcldauqad.onion", "nitraeju2mipeziu2wtcrqsxg7h62v5y4eqgwi75uprynkj74gevvuqd.onion", "codeine3hsqnnkb3dsu6ft4tunlomr3lmuml5hcoqmfkgiqfv2brdqqd.onion", } NitterI2PUrls = []string{ "axd6uavsstsrvstva4mzlzh4ct76rc6zdug3nxdgeitrzczhzf4q.b32.i2p", "u6ikd6zndl3c4dsdq4mmujpntgeevdk5qzkfb57r4tnfeccrn2qa.b32.i2p", "gseczlzmiv23p5vhsktyd7whquq2uy3c5fgkmdohh453qp3daoua.b32.i2p", "tm4rwkeysv3zz3q5yacyr4rlmca2c4etkdobfvuqzt6vsfsu4weq.b32.i2p", "vernzdedoxuflrrxc4vbatbkpjh4k22ecgiqgimdiif62onhagva.b32.i2p", } NitterLokinetUrls = []string{ "nitter.priv.loki/", } ) func WaitUntilNext(d time.Duration) { now := time.Now() dur := now.Truncate(d).Add(d).Sub(now) log.Println("sleeping for", dur.Round(time.Second)) time.Sleep(dur) } func CheckNotifications() { var prevHasNewNotes bool for { log.Println("Checking notifications ...") hasNewNotes, err := sn.CheckNotifications() if err != nil { SendToNostr(fmt.Sprint(err)) } else { if !prevHasNewNotes && hasNewNotes { // only send on "rising edge" SendToNostr("new notifications") log.Println("Forwarded notifications to monitoring") } else if hasNewNotes { log.Println("Notifications already forwarded") } } prevHasNewNotes = hasNewNotes WaitUntilNext(time.Hour) } } func SessionKeepAlive() { for { log.Println("Refresh session using GET /api/auth/session ...") sn.RefreshSession() WaitUntilNext(time.Hour) } } func main() { go CheckNotifications() go SessionKeepAlive() for { log.Println("fetching items ...") r, err := sn.Items(&sn.ItemsQuery{Sort: "recent", Limit: 21}) if err != nil { log.Println(err) SendToNostr(fmt.Sprint(err)) WaitUntilNext(time.Minute) continue } for _, item := range r.Items { if m := TwitterUrlRegexp.FindStringSubmatch(item.Url); m != nil { log.Printf("item %d is twitter link\n", item.Id) if ItemHasComment(item.Id) { log.Printf("item %d already has nitter links comment\n", item.Id) continue } comment := "**Twitter2Nitter**\n\nClearnet:\n\n" for _, nUrl := range NitterClearnetUrls { nitterLink := strings.Replace(item.Url, m[1], nUrl, 1) comment += fmt.Sprintf("[%s](%s) | ", nUrl, nitterLink) } comment = strings.TrimRight(comment, "| ") comment += "\n\nTor:\n\n" for _, nUrl := range NitterOnionUrls { nitterLink := strings.Replace(item.Url, m[1], nUrl, 1) nitterLink = strings.Replace(nitterLink, "https://", "http://", 1) comment += fmt.Sprintf("[%s..%s](%s) | ", nUrl[:12], nUrl[len(nUrl)-12:], nitterLink) } comment = strings.TrimRight(comment, "| ") comment += "\n\nI2P:\n\n" for _, nUrl := range NitterI2PUrls { nitterLink := strings.Replace(item.Url, m[1], nUrl, 1) nitterLink = strings.Replace(nitterLink, "https://", "http://", 1) comment += fmt.Sprintf("[%s..%s](%s) | ", nUrl[:12], nUrl[len(nUrl)-12:], nitterLink) } comment = strings.TrimRight(comment, "| ") comment += "\n\nLokinet:\n\n" for _, nUrl := range NitterLokinetUrls { nitterLink := strings.Replace(item.Url, m[1], nUrl, 1) nitterLink = strings.Replace(nitterLink, "https://", "http://", 1) comment += fmt.Sprintf("[%s](%s)\n", nUrl, nitterLink) } comment += "\n\n_Nitter is a free and open source alternative Twitter front-end focused on privacy and performance. " comment += "Click [here](https://github.com/zedeus/nitter) for more information._" cId, err := sn.CreateComment(item.Id, comment) if err != nil { log.Println(err) SendToNostr(fmt.Sprint(err)) continue } log.Printf("created comment %d\n", cId) SaveComment(&sn.Comment{Id: cId, Text: comment, ParentId: item.Id}) } else { log.Printf("item %d is not twitter link\n", item.Id) } } WaitUntilNext(time.Minute) } }