package main
import (
"bytes"
"fmt"
"math/rand"
"net"
"os"
"time"
)
func getRandomAddress() string {
ip1 := rand.Intn(256)
ip2 := rand.Intn(256)
ip3 := rand.Intn(256)
ip4 := rand.Intn(256)
return fmt.Sprintf("%d.%d.%d.%d", ip1, ip2, ip3, ip4)
}
func offgas(r rune) {
address := getRandomAddress()
conn, err := net.Dial("udp", address+":7")
if err != nil {
fmt.Println("Error connecting to:", address, err)
}
defer conn.Close()
// Set write timeout
conn.SetWriteDeadline(time.Now().Add(3 * time.Second))
// Send the character
_, err = conn.Write([]byte(string(r)))
if err != nil {
fmt.Println("Error sending data to:", address, err)
return
}
}
func main() {
// get poem.txt and index.html locations from args, if possible
poemFile := "poem.txt"
indexFile := "index.html"
if len(os.Args) == 3 {
poemFile = os.Args[1]
indexFile = os.Args[2]
}
// get string from poem.txt
str, err := os.ReadFile(poemFile)
if err != nil {
fmt.Println("Error reading file:", err)
return
}
bstr := []byte(str)
lastRune := rune(0)
randomByteSwitch := func(r rune) rune {
dec := rand.Float64()
if dec < 0.003 {
lastRune = r
if r == 10 || r == 13 {
return r
}
char := rand.Float64()
if char > 0.3 {
return rune(rand.Int31n(8191) + 97) // a-z
}
if char < 0.01 {
return rand.Int31n(128591-128513) + 128513
}
return rand.Int31n(11359)
}
if dec < 0.007 {
if dec > 0.001 && r == 10 || r == 13 {
if lastRune == 10 || lastRune == 13 {
offgas(r)
lastRune = r
return -1
}
lastRune = r
return r
}
offgas(r)
lastRune = r
return -1
}
return r
}
bstr = bytes.Map(randomByteSwitch, bstr)
outstr := "poem, rotting
rotting
This poem rots over time, eventually disappearing. New words are added to the top of the heap periodically. It offgasses into the internet via random UDP echo packets. Few hosts respond.