Tiny replacement for piHole DNS filter
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package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"os"
"github.com/miekg/dns"
)
func init() {
//ZabovConf describes the Json we use for configuration
type ZabovConf struct {
Zabov struct {
Port string `json:"port"`
Proto string `json:"proto"`
Ipaddr string `json:"ipaddr"`
Upstream string `json:"upstream"`
Cachettl int `json:"cachettl"`
Killfilettl int `json:"killfilettl"`
Singlefilters string `json:"singlefilters"`
Doublefilters string `json:"doublefilters"`
Blackholeip string `json:"blackholeip"`
Hostsfile string `json:"hostsfile"`
} `json:"zabov"`
}
var MyConf ZabovConf
file, err := ioutil.ReadFile("config.json")
if err != nil {
log.Println("Cannot open config file", err.Error())
os.Exit(1)
}
err = json.Unmarshal([]byte(file), &MyConf)
if err != nil {
log.Println("Cannot marshal json: ", err.Error())
os.Exit(1)
}
// now we read configuration file
fmt.Println("Reading configuration file...")
ZabovPort := MyConf.Zabov.Port
ZabovType := MyConf.Zabov.Proto
ZabovAddr := MyConf.Zabov.Ipaddr
ZabovUpDNS = MyConf.Zabov.Upstream
ZabovSingleBL = MyConf.Zabov.Singlefilters
ZabovDoubleBL = MyConf.Zabov.Doublefilters
ZabovAddBL = MyConf.Zabov.Blackholeip
ZabovCacheTTL = MyConf.Zabov.Cachettl
ZabovKillTTL = MyConf.Zabov.Killfilettl
ZabovHostsFile = MyConf.Zabov.Hostsfile
zabovString := ZabovAddr + ":" + ZabovPort
MyDNS = new(dns.Server)
MyDNS.Addr = zabovString
MyDNS.Net = ZabovType
ZabovDNSArray = fileByLines(ZabovUpDNS)
}