mirror of
https://github.com/xvzc/SpoofDPI.git
synced 2024-12-22 22:36:53 +00:00
60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
package util
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import (
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"log"
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"net"
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"strings"
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"io"
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"github.com/babolivier/go-doh-client"
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)
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func ExtractDomainAndPort(s string) (string, string) {
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lines := strings.Split(s, "\n")
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hostPart := strings.Split(lines[1], " ")[1]
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tokens := strings.Split(hostPart, ":")
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if len(tokens) == 1 {
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return strings.TrimSpace(string(tokens[0])), "80"
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}
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return string(tokens[0]), string(tokens[1])
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}
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func ReadBytes(conn net.Conn)([]byte, error) {
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buf := make([]byte, 0, 4096) // big buffer
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tmp := make([]byte, 1024) // using small tmo buffer for demonstrating
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for {
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n, err := conn.Read(tmp)
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if err != nil {
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if err != io.EOF {
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log.Fatal("ReadRequest error:", err)
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}
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return nil, err
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}
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log.Println("##### got", n, "bytes.")
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buf = append(buf, tmp[:n]...)
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if n < 1024 {
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break
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}
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}
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return buf, nil
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}
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func DnsLookupOverHttps(domain string)(string, error) {
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// Perform a A lookup on example.com
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resolver := doh.Resolver{
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Host: "8.8.8.8", // Change this with your favourite DoH-compliant resolver.
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Class: doh.IN,
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}
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a, _, err := resolver.LookupA(domain)
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if err != nil {
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return "", err
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}
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ip := a[0].IP4
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return ip, nil
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}
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