package main import ( "bufio" "fmt" "log" "os" "regexp" "strings" "time" sn "github.com/ekzyis/snappy" ) type NostrClient struct { Url string Name string } var ( TwitterUrlRegexp = regexp.MustCompile(`(?:https?:\/\/)?(?:www\.)?((?:twitter|x)\.com)\/\w+\/status(?:es)?\/\d+`) // references: // - https://github.com/zedeus/nitter/wiki/Instances // - https://status.d420.de/ NitterClearnetUrls = []string{ "xcancel.com", } ) 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 main() { loadEnv() c := sn.NewClient( sn.WithBaseUrl(os.Getenv("SN_BASE_URL")), sn.WithApiKey(os.Getenv("SN_API_KEY")), ) for { log.Println("fetching items ...") r, err := c.Items(&sn.ItemsQuery{Sort: "recent", Type: "all", Limit: 100}) if err != nil { log.Println(err) SendToNostr(fmt.Sprint(err)) WaitUntilNext(time.Minute) continue } for _, item := range r.Items { var m []string var comment string if m = TwitterUrlRegexp.FindStringSubmatch(item.Url); m != nil { comment = strings.Replace(m[0], m[1], "xcancel.com", 1) } else if m = TwitterUrlRegexp.FindStringSubmatch(item.Text); m != nil { comment = strings.Replace(m[0], m[1], "xcancel.com", 1) } if comment != "" { 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 } cId, err := c.CreateComment(item.Id, comment) if err != nil { log.Println("create comment failed:", 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) } } func loadEnv() { var ( f *os.File s *bufio.Scanner err error ) if f, err = os.Open(".env"); err != nil { log.Fatalf("error opening .env: %v", err) } defer f.Close() s = bufio.NewScanner(f) s.Split(bufio.ScanLines) for s.Scan() { line := s.Text() parts := strings.SplitN(line, "=", 2) // Check if we have exactly 2 parts (key and value) if len(parts) == 2 { os.Setenv(parts[0], parts[1]) } else { log.Fatalf(".env: invalid line: %s\n", line) } } // Check for errors during scanning if err = s.Err(); err != nil { fmt.Println("error scanning .env:", err) } }