1 files changed, 0 insertions, 121 deletions
diff --git a/webircgateway/pkg/dnsbl/dnsbl.go b/webircgateway/pkg/dnsbl/dnsbl.go
deleted file mode 100644
index 318102e..0000000
--- a/webircgateway/pkg/dnsbl/dnsbl.go
+++ /dev/null
@@ -1,121 +0,0 @@
-package dnsbl
-
-import (
-	"encoding/hex"
-	"fmt"
-	"net"
-	"strings"
-)
-
-type ResultList struct {
-	Listed  bool
-	Results []Result
-}
-
-/*
-Result holds the individual IP lookup results for each RBL search
-*/
-type Result struct {
-	// Blacklist is the DNSBL server that gave this result
-	Blacklist string
-	// Address is the IP address that was searched
-	Address string
-	// Listed indicates whether or not the IP was on the RBL
-	Listed bool
-	// RBL lists sometimes add extra information as a TXT record
-	// if any info is present, it will be stored here.
-	Text string
-	// Error represents any error that was encountered (DNS timeout, host not
-	// found, etc.) if any
-	Error bool
-	// ErrorType is the type of error encountered if any
-	ErrorType error
-}
-
-/*
-Convert an IP to a hostname ready for a dnsbl lookup
-127.0.0.1 becomes 1.0.0.127
-1234:1234:1234:1234:1234:1234:1234:1234 becomes 4.3.2.1.4.3.2.1.4.3.2.1.4.3.2.1.4.3.2.1.4.3.2.1.4.3.2.1.4.3.2.1
-*/
-func toDnsBlHostname(ip net.IP) string {
-	if ip.To4() != nil {
-		// IPv4
-		// Reverse the complete octects
-		splitAddress := strings.Split(ip.String(), ".")
-		for i, j := 0, len(splitAddress)-1; i < len(splitAddress)/2; i, j = i+1, j-1 {
-			splitAddress[i], splitAddress[j] = splitAddress[j], splitAddress[i]
-		}
-
-		return strings.Join(splitAddress, ".")
-	}
-
-	// IPv6
-	// Remove all : from a full expanded address, then reverse all the hex characters
-	ipv6Str := expandIPv6(ip)
-	addrHexStr := strings.ReplaceAll(ipv6Str, ":", "")
-	chars := []rune(addrHexStr)
-	for i, j := 0, len(chars)-1; i < j; i, j = i+1, j-1 {
-		chars[i], chars[j] = chars[j], chars[i]
-	}
-
-	return strings.Join(strings.Split(string(chars), ""), ".")
-}
-
-func expandIPv6(ip net.IP) string {
-	dst := make([]byte, hex.EncodedLen(len(ip)))
-	_ = hex.Encode(dst, ip)
-	return string(dst[0:4]) + ":" +
-		string(dst[4:8]) + ":" +
-		string(dst[8:12]) + ":" +
-		string(dst[12:16]) + ":" +
-		string(dst[16:20]) + ":" +
-		string(dst[20:24]) + ":" +
-		string(dst[24:28]) + ":" +
-		string(dst[28:])
-}
-
-func query(rbl string, host string, r *Result) {
-	r.Listed = false
-
-	lookup := fmt.Sprintf("%s.%s", host, rbl)
-	res, err := net.LookupHost(lookup)
-
-	if len(res) > 0 {
-		r.Listed = true
-		txt, _ := net.LookupTXT(lookup)
-		if len(txt) > 0 {
-			r.Text = txt[0]
-		}
-	}
-	if err != nil {
-		r.Error = true
-		r.ErrorType = err
-	}
-
-	return
-}
-
-func Lookup(dnsblList []string, targetHost string) (r ResultList) {
-	ip, err := net.LookupIP(targetHost)
-	if err != nil {
-		return
-	}
-
-	for _, dnsbl := range dnsblList {
-		for _, addr := range ip {
-			res := Result{}
-			res.Blacklist = dnsbl
-			res.Address = addr.String()
-
-			addr := toDnsBlHostname(addr)
-			query(dnsbl, addr, &res)
-			r.Results = append(r.Results, res)
-
-			if res.Listed {
-				r.Listed = true
-			}
-		}
-	}
-
-	return
-}