00.database.go

@@ -7,15 +7,12 @@ import (
 	"github.com/syndtr/goleveldb/leveldb"
 )
 
-//MyZabovKDB is the storage where we'll put domains to block (obsolete)
+//MyZabovKDB is the storage where we'll put domains to block
-//var MyZabovKDB *leveldb.DB
+var MyZabovKDB *leveldb.DB
 
-//MyZabovCDB is the storage where we'll put domains to cache (global for all configs)
+//MyZabovCDB is the storage where we'll put domains to cache
 var MyZabovCDB *leveldb.DB
 
-//MyZabovKDBs is the storage where we'll put domains to block (one for each config)
-var MyZabovKDBs map[string]*leveldb.DB
-
 func init() {
 
 	var err error
@@ -23,13 +20,13 @@ func init() {
 	os.RemoveAll("./db")
 
 	os.MkdirAll("./db", 0755)
-	/*
+
 	MyZabovKDB, err = leveldb.OpenFile("./db/killfile", nil)
 	if err != nil {
 		fmt.Println("Cannot create Killfile db: ", err.Error())
 	} else {
 		fmt.Println("Killfile DB created")
-		}*/
+	}
 
 	MyZabovCDB, err = leveldb.OpenFile("./db/cache", nil)
 	if err != nil {
@@ -38,21 +35,4 @@ func init() {
 		fmt.Println("Cache DB created")
 	}
 
-	MyZabovKDBs = map[string]*leveldb.DB{}
-}
-
-// ZabovCreateKDB creates Kill DBs
-func ZabovCreateKDB(conf string) {
-	var err error
-
-	dbname := "./db/killfile_" + conf
-	KDB, err := leveldb.OpenFile(dbname, nil)
-	if err != nil {
-		fmt.Println("Cannot create Killfile db: ", err.Error())
-	} else {
-		fmt.Println("Killfile DB created")
-	}
-
-	MyZabovKDBs[conf] = KDB
-
 }

01.conf.go

@@ -5,19 +5,30 @@ import (
 	"fmt"
 	"io/ioutil"
 	"log"
-	"net"
 	"os"
-	"strconv"
-	"strings"
 
 	"github.com/miekg/dns"
 )
 
-type stringarray []string
-type urlsMap map[string]stringarray
-
 func init() {
-	var MyConfRaw interface{}
+
+	//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")
 
@@ -26,42 +37,26 @@ func init() {
 		os.Exit(1)
 	}
 
-	err = json.Unmarshal([]byte(file), &MyConfRaw)
+	err = json.Unmarshal([]byte(file), &MyConf)
 
 	if err != nil {
-		log.Println("Cannot unmarshal json: ", err.Error())
+		log.Println("Cannot marshal json: ", err.Error())
 		os.Exit(1)
 	}
 
 	// now we read configuration file
 	fmt.Println("Reading configuration file...")
 
-	MyConf := MyConfRaw.(map[string]interface{})
+	ZabovPort := MyConf.Zabov.Port
-
+	ZabovType := MyConf.Zabov.Proto
-	zabov := MyConf["zabov"].(map[string]interface{})
+	ZabovAddr := MyConf.Zabov.Ipaddr
-
+	ZabovUpDNS = MyConf.Zabov.Upstream
-	ZabovPort := zabov["port"].(string)
+	ZabovSingleBL = MyConf.Zabov.Singlefilters
-	ZabovType := zabov["proto"].(string)
+	ZabovDoubleBL = MyConf.Zabov.Doublefilters
-	ZabovAddr := zabov["ipaddr"].(string)
+	ZabovAddBL = MyConf.Zabov.Blackholeip
-	ZabovCacheTTL = int(zabov["cachettl"].(float64))
+	ZabovCacheTTL = MyConf.Zabov.Cachettl
-	ZabovKillTTL = int(zabov["killfilettl"].(float64))
+	ZabovKillTTL = MyConf.Zabov.Killfilettl
-
+	ZabovHostsFile = MyConf.Zabov.Hostsfile
-	if MyConf["configs"] == nil {
-		log.Println("configs not set: you shall set at least 'default' config")
-		os.Exit(1)
-	}
-
-	configs := MyConf["configs"].(map[string]interface{})
-
-	if len(configs) == 0 {
-		log.Println("you shall set at least 'default' config")
-		os.Exit(1)
-	}
-
-	if configs["default"] == nil {
-		log.Println("'default' config is required")
-		os.Exit(1)
-	}
 
 	zabovString := ZabovAddr + ":" + ZabovPort
 
@@ -69,151 +64,6 @@ func init() {
 	MyDNS.Addr = zabovString
 	MyDNS.Net = ZabovType
 
-	ZabovConfigs = map[string]ZabovConfig{}
+	ZabovDNSArray = fileByLines(ZabovUpDNS)
-	ZabovIPGroups = []ZabovIPGroup{}
-	ZabovTimetables = map[string]*ZabovTimetable{}
-	ZabovIPAliases = map[string]string{}
-
-	IPAliasesRaw := MyConf["ipaliases"].(map[string]interface{})
-
-	for alias, ip := range IPAliasesRaw {
-		fmt.Println("IP Alias:", alias, ip)
-		ZabovIPAliases[alias] = ip.(string)
-	}
-
-	for name, v := range configs {
-		fmt.Println("evaluaing config name:", name)
-		confRaw := v.(map[string]interface{})
-		var conf ZabovConfig
-		conf.ZabovUpDNS = confRaw["upstream"].(string)
-		conf.ZabovSingleBL = confRaw["singlefilters"].(string)
-		conf.ZabovDoubleBL = confRaw["doublefilters"].(string)
-		conf.ZabovAddBL = confRaw["blackholeip"].(string)
-		conf.ZabovHostsFile = confRaw["hostsfile"].(string)
-
-		conf.ZabovDNSArray = fileByLines(conf.ZabovUpDNS)
-		ZabovConfigs[name] = conf
-		ZabovCreateKDB(name)
-	}
-
-	timetables := MyConf["timetables"].(map[string]interface{})
-
-	for name, v := range timetables {
-		fmt.Println("evaluaing timetable name:", name)
-		timetableRaw := v.(map[string]interface{})
-		var timetable ZabovTimetable
-
-		timetable.cfgin = timetableRaw["cfgin"].(string)
-		timetable.cfgout = timetableRaw["cfgout"].(string)
-
-		if timetable.cfgin == "" {
-			timetable.cfgin = "default"
-		}
-		if timetable.cfgout == "" {
-			timetable.cfgout = "default"
-		}
-
-		_, ok := ZabovConfigs[timetable.cfgin]
-		if !ok {
-			log.Println("timetable: inexistent cfgin:", timetable.cfgin)
-			os.Exit(1)
-		}
-
-		_, ok = ZabovConfigs[timetable.cfgout]
-		if !ok {
-			log.Println("timetable: inexistent cfgout:", timetable.cfgout)
-			os.Exit(1)
-		}
-
-		tables := timetableRaw["tables"].([]interface{})
-
-		for i := range tables {
-			table := tables[i].(map[string]interface{})
-			var ttEntry ZabovTimetableEntry
-			ttEntry.times = []*ZabovTimeRange{}
-			for _, tRaw := range strings.Split(table["times"].(string), ";") {
-				tRawArr := strings.Split(tRaw, "-")
-				if len(tRawArr) > 1 {
-					startArr := strings.Split(tRawArr[0], ":")
-					stopArr := strings.Split(tRawArr[1], ":")
-
-					if len(startArr) > 1 && len(stopArr) > 1 {
-						hourStart, _ := strconv.Atoi(startArr[0])
-						minuteStart, _ := strconv.Atoi(startArr[1])
-						start := ZabovTime{hour: hourStart, minute: minuteStart}
-
-						hourStop, _ := strconv.Atoi(stopArr[0])
-						minuteStop, _ := strconv.Atoi(stopArr[1])
-						stop := ZabovTime{hour: hourStop, minute: minuteStop}
-						t := ZabovTimeRange{start: start, stop: stop}
-						ttEntry.times = append(ttEntry.times, &t)
-					}
-				}
-
-			}
-
-			ttEntry.days = map[string]bool{}
-			for _, day := range strings.Split(table["days"].(string), ";") {
-				ttEntry.days[day] = true
-			}
-
-			timetable.table = append(timetable.table, &ttEntry)
-		}
-		ZabovTimetables[name] = &timetable
-	}
-
-	IPGroups := MyConf["ipgroups"].([]interface{})
-
-	fmt.Println("evaluating IP Groups: ", len(IPGroups))
-	for i := range IPGroups {
-		fmt.Println("evaluating IP Group n.", i)
-		var groupStruct ZabovIPGroup
-		groupMap := IPGroups[i].(map[string]interface{})
-		IPsRaw := groupMap["ips"].([]interface{})
-		groupStruct.ips = []net.IP{}
-		for x := range IPsRaw {
-			ipRaw := IPsRaw[x].(string)
-			ip := net.ParseIP(ipRaw)
-			fmt.Println("adding IP ", ipRaw)
-
-			alias, ok := ZabovIPAliases[ipRaw]
-			if ok {
-				fmt.Println("IP alias: ", ipRaw, alias)
-				ip = net.ParseIP(alias)
-			}
-			groupStruct.ips = append(groupStruct.ips, ip)
-		}
-		groupStruct.cfg = groupMap["cfg"].(string)
-		groupStruct.timetable = groupMap["timetable"].(string)
-		fmt.Println("cfg:", groupStruct.cfg)
-		fmt.Println("timetable:", groupStruct.timetable)
-		_, ok := ZabovTimetables[groupStruct.timetable]
-		if !ok {
-			log.Println("inexistent timetable:", groupStruct.timetable)
-			os.Exit(1)
-		}
-		ZabovIPGroups = append(ZabovIPGroups, groupStruct)
-	}
-
-	localresponder := MyConf["localresponder"].(map[string]interface{})
-
-	if localresponder != nil {
-		if localresponder["responder"] != nil {
-			ZabovLocalResponder = localresponder["responder"].(string)
-			if len(ZabovLocalResponder) > 0 {
-				local := ZabovConfig{}
-				local.ZabovDNSArray = []string{ZabovLocalResponder}
-				ZabovConfigs["__localresponder__"] = local
-				fmt.Println("ZabovLocalResponder:", ZabovLocalResponder)
-			}
-		}
-		if localresponder["localdomain"] != nil {
-			ZabovLocalDomain = localresponder["localdomain"].(string)
-		}
-	}
-	//fmt.Println("ZabovConfigs:", ZabovConfigs)
-	//fmt.Println("ZabovTimetables:", ZabovTimetables)
-	//fmt.Println("ZabovIPAliases:", ZabovIPAliases)
-	//fmt.Println("ZabovIPGroups:", ZabovIPGroups)
 
 }

01.killfile.go

@@ -5,10 +5,11 @@ import (
 	"strings"
 )
 
+var zabovKbucket = []byte("killfile")
+
 type killfileItem struct {
 	Kdomain string
 	Ksource string
-	Kconfigs stringarray
 }
 
 var bChannel chan killfileItem
@@ -26,25 +27,16 @@ func bWriteThread() {
 
 	for item := range bChannel {
 
-		alreadyInSomeDB := false
+		writeInKillfile(item.Kdomain, item.Ksource)
-
-		for _, config := range item.Kconfigs {
-			if !alreadyInSomeDB {
-				alreadyInSomeDB = domainInKillfile(item.Kdomain, config)
-			}
-			writeInKillfile(item.Kdomain, item.Ksource, config)
-		}
-		if !alreadyInSomeDB {
 		incrementStats("BL domains from "+item.Ksource, 1)
 		incrementStats("TOTAL", 1)
-		}
 
 	}
 
 }
 
 //DomainKill stores a domain name inside the killfile
-func DomainKill(s, durl string, configs stringarray) {
+func DomainKill(s, durl string) {
 
 	if len(s) > 2 {
 
@@ -54,7 +46,6 @@ func DomainKill(s, durl string, configs stringarray) {
 
 		k.Kdomain = s
 		k.Ksource = durl
-		k.Kconfigs = configs
 
 		bChannel <- k
 
@@ -62,12 +53,11 @@ func DomainKill(s, durl string, configs stringarray) {
 
 }
 
-func writeInKillfile(key, value string, config string) {
+func writeInKillfile(key, value string) {
 
 	stK := []byte(key)
 	stV := []byte(value)
 
-	MyZabovKDB := MyZabovKDBs[config]
 	err := MyZabovKDB.Put(stK, stV, nil)
 	if err != nil {
 		fmt.Println("Cannot write to Killfile DB: ", err.Error())
@@ -75,11 +65,10 @@ func writeInKillfile(key, value string, config string) {
 
 }
 
-func domainInKillfile(domain string, config string) bool {
+func domainInKillfile(domain string) bool {
 
 	s := strings.ToLower(domain)
 
-	MyZabovKDB := MyZabovKDBs[config]
 	has, err := MyZabovKDB.Has([]byte(s), nil)
 	if err != nil {
 		fmt.Println("Cannot read from Killfile DB: ", err.Error())

01.stats.go

@@ -81,12 +81,7 @@ func statsThread() {
 		case "INC":
 			ZabovStats[item.Payload] += item.Number
 		case "SET":
-			if item.Number == 0 {
-
-				delete(ZabovStats, item.Payload)
-			} else {
 			ZabovStats[item.Payload] = item.Number
-			}
 		case "PRI":
 			statsPrint()
 		}

adlist_hosts.go

@@ -16,12 +16,9 @@ func init() {
 }
 
 //DoubleIndexFilter puts the domains inside file
-func DoubleIndexFilter(durl string, configs stringarray) error {
+func DoubleIndexFilter(durl string) error {
 
-	fmt.Println("DoubleIndexFilter: Retrieving HostFile from: ", durl)
+	fmt.Println("Retrieving HostFile from: ", durl)
-
-	// resets malformed HostLines for url
-	setstatsvalue("Malformed HostLines "+durl, 0)
 
 	var err error
 
@@ -51,9 +48,6 @@ func DoubleIndexFilter(durl string, configs stringarray) error {
 
 		line := scanner.Text()
 
-		if len(line) == 0 || strings.TrimSpace(line)[0] == '#' {
-			continue
-		}
 		h := strings.FieldsFunc(line, splitter)
 
 		if h == nil {
@@ -65,8 +59,7 @@ func DoubleIndexFilter(durl string, configs stringarray) error {
 		}
 
 		if net.ParseIP(h[0]) != nil {
-
+			DomainKill(h[1], durl)
-			DomainKill(h[1], durl, configs)
 
 			// fmt.Println("MATCH: ", h[1])
 			numLines++
@@ -83,41 +76,20 @@ func DoubleIndexFilter(durl string, configs stringarray) error {
 
 }
 
-func getDoubleFilters(urls urlsMap) {
+func getDoubleFilters() {
 
-	fmt.Println("getDoubleFilters: downloading all urls:", len(urls))
+	s := fileByLines(ZabovDoubleBL)
-	for url, configs := range urls {
+
-		DoubleIndexFilter(url, configs)
+	for _, a := range s {
+		DoubleIndexFilter(a)
 	}
-	fmt.Println("getDoubleFilters: DONE!")
 
 }
 
 func downloadDoubleThread() {
 	fmt.Println("Starting updater of DOUBLE lists, each (hours):", ZabovKillTTL)
-
-	_urls := urlsMap{}
-
 	for {
-		fmt.Println("downloadDoubleThread: collecting urls from all configs...")
+		getDoubleFilters()
-		for config := range ZabovConfigs {
-			ZabovDoubleBL := ZabovConfigs[config].ZabovDoubleBL
-			if len(ZabovDoubleBL) == 0 {
-				continue
-			}
-			s := fileByLines(ZabovDoubleBL)
-			for _, v := range s {
-				configs := _urls[v]
-				if configs == nil {
-					configs = stringarray{}
-					_urls[v] = configs
-				}
-				configs = append(configs, config)
-				_urls[v] = configs
-			}
-		}
-
-		getDoubleFilters(_urls)
 		time.Sleep(time.Duration(ZabovKillTTL) * time.Hour)
 	}
 

adlist_single.go

@@ -14,13 +14,10 @@ func init() {
 }
 
 //SingleIndexFilter puts the domains inside file
-func SingleIndexFilter(durl string, configs stringarray) error {
+func SingleIndexFilter(durl string) error {
 
 	fmt.Println("Retrieving DomainFile from: ", durl)
 
-	// resets malformed HostLines for url
-	setstatsvalue("Malformed DomainLines "+durl, 0)
-
 	var err error
 
 	// Get the data
@@ -49,9 +46,6 @@ func SingleIndexFilter(durl string, configs stringarray) error {
 
 		line := scanner.Text()
 
-		if len(line) == 0 || strings.TrimSpace(line)[0] == '#' {
-			continue
-		}
 		h := strings.FieldsFunc(line, splitter)
 
 		if h == nil {
@@ -63,9 +57,7 @@ func SingleIndexFilter(durl string, configs stringarray) error {
 		}
 
 		if !strings.Contains(h[0], "#") {
-
+			DomainKill(h[0], durl)
-			DomainKill(h[0], durl, configs)
-
 			// fmt.Println("MATCH: ", h[1])
 			numLines++
 		} else {
@@ -81,42 +73,20 @@ func SingleIndexFilter(durl string, configs stringarray) error {
 
 }
 
-func getSingleFilters(urls urlsMap) {
+func getSingleFilters() {
 
-	fmt.Println("getSingleFilters: downloading all urls:", len(urls))
+	s := fileByLines(ZabovSingleBL)
-	for url, configs := range urls {
+
-		SingleIndexFilter(url, configs)
+	for _, a := range s {
+		SingleIndexFilter(a)
 	}
-	fmt.Println("getSingleFilters: DONE!")
 
 }
 
 func downloadThread() {
 	fmt.Println("Starting updater of SINGLE lists, each (hours): ", ZabovKillTTL)
-	_urls := urlsMap{}
-
 	for {
-		fmt.Println("downloadThread: collecting urls from all configs...")
+		getSingleFilters()
-		for config := range ZabovConfigs {
-			ZabovSingleBL := ZabovConfigs[config].ZabovSingleBL
-
-			if len(ZabovSingleBL) == 0 {
-				continue
-			}
-
-			s := fileByLines(ZabovSingleBL)
-			for _, v := range s {
-				configs := _urls[v]
-				if configs == nil {
-					configs = stringarray{}
-					_urls[v] = configs
-				}
-				configs = append(configs, config)
-				_urls[v] = configs
-			}
-		}
-
-		getSingleFilters(_urls)
 		time.Sleep(time.Duration(ZabovKillTTL) * time.Hour)
 	}
 

config.json

@@ -3,53 +3,13 @@
         "port":"53", 
         "proto":"udp", 
         "ipaddr":"0.0.0.0",
+        "upstream":"./dns-upstream.txt"  ,
         "cachettl": 1,
-        "killfilettl": 12
+        "killfilettl": 12,
-    },
-    "localresponder":{
-        "responder":"192.168.178.1:53",
-        "localdomain":"fritz.box"
-    },
-    "ipaliases":{
-        "pc8":"192.168.178.29",
-        "localhost":"127.0.0.1"
-    },
-    "ipgroups":[
-        {
-            "ips":["localhost", "::1", "192.168.178.30", "192.168.178.31", "pc8"],
-            "cfg":"",
-            "timetable":"tt_children"
-        }
-    ],
-    "timetables":{
-        "tt_children":{
-            "tables":[{"times":"00:00-05:00;8:30-12:30;18:30-22:59", "days":"Mo;Tu;We;Th;Fr;Sa;Su"}],
-            "cfgin":"children_restricted",
-            "cfgout":"children"
-        }
-    },
-    "configs":{
-        "default":{
-            "upstream":"./dns-upstream.txt",
         "singlefilters":"./urls-domains.txt" ,
         "doublefilters":"./urls-hosts.txt", 
         "blackholeip":"127.0.0.1",
         "hostsfile":"./urls-local.txt"
-        },
-        "children":{
-            "upstream":"./dns-upstream.txt",
-            "singlefilters":"./urls-domains.txt",
-            "doublefilters":"./urls-hosts.txt", 
-            "blackholeip":"127.0.0.1",
-            "hostsfile":"./urls-local.txt"
-        },
-        "children_restricted":{
-            "upstream":"./dns-upstream.txt",
-            "singlefilters":"./urls-domains.txt",
-            "doublefilters":"./urls-hosts.txt", 
-            "blackholeip":"127.0.0.1",
-            "hostsfile":"./urls-local.txt"
-        }
     }
 
 }

dns_client.go

@@ -12,8 +12,7 @@ import (
 
 //ForwardQuery forwards the query to the upstream server
 //first server to answer wins
-//accepts config name to select the UP DNS source list
+func ForwardQuery(query *dns.Msg) *dns.Msg {
-func ForwardQuery(query *dns.Msg, config string, nocache bool) *dns.Msg {
 
 	go incrementStats("ForwardQueries", 1)
 
@@ -24,7 +23,6 @@ func ForwardQuery(query *dns.Msg, config string, nocache bool) *dns.Msg {
 	fqdn := strings.TrimRight(query.Question[0].Name, ".")
 
 	lfqdn := fmt.Sprintf("%d", query.Question[0].Qtype) + "." + fqdn
-	if !nocache {
 	if cached := GetDomainFromCache(lfqdn); cached != nil {
 		go incrementStats("CacheHit", 1)
 		cached.SetReply(query)
@@ -32,7 +30,6 @@ func ForwardQuery(query *dns.Msg, config string, nocache bool) *dns.Msg {
 		return cached
 
 	}
-	}
 
 	c := new(dns.Client)
 
@@ -48,7 +45,7 @@ func ForwardQuery(query *dns.Msg, config string, nocache bool) *dns.Msg {
 			continue
 		}
 
-		d := oneTimeDNS(config)
+		d := oneTimeDNS()
 
 		in, _, err := c.Exchange(query, d)
 		if err != nil {
@@ -81,11 +78,11 @@ func init() {
 
 }
 
-func oneTimeDNS(config string) (dns string) {
+func oneTimeDNS() (dns string) {
 
 	rand.Seed(time.Now().Unix())
 
-	upl := ZabovConfigs[config].ZabovDNSArray
+	upl := ZabovDNSArray
 
 	if len(upl) < 1 {
 		fmt.Println("No DNS defined, using default 127.0.0.53:53. Hope it works!")

dns_handler.go

@@ -1,124 +1,44 @@
 package main
 
 import (
-	"fmt"
 	"net"
 	"strings"
-	"time"
 
 	"github.com/miekg/dns"
 )
 
-var weekdays []string
-
-func init() {
-	weekdays = []string{"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"}
-}
-
-func getCurTime() (time.Time, error) {
-	return time.Parse("15:04", time.Now().Format("15:04"))
-}
-
-func confFromTimeTable(timetable string) string {
-	tt := ZabovTimetables[timetable]
-	if tt == nil {
-		fmt.Println("confFromTimeTable: return default")
-		return "default"
-	}
-	for _, ttentry := range tt.table {
-		now := time.Now()
-		nowHour := now.Hour()
-		nowMinute := now.Minute()
-		weekday := weekdays[now.Weekday()]
-		if ttentry.days == nil || len(ttentry.days) == 0 || ttentry.days[weekday] || ttentry.days[strings.ToLower(weekday)] {
-			for _, t := range ttentry.times {
-
-				if (nowHour > t.start.hour || (nowHour == t.start.hour && nowMinute >= t.start.minute)) &&
-					(nowHour < t.stop.hour || (nowHour == t.stop.hour && nowMinute <= t.stop.minute)) {
-					go incrementStats("TIMETABLE IN: "+timetable, 1)
-					fmt.Println("confFromTimeTable: return IN", tt.cfgin)
-					return tt.cfgin
-				}
-			}
-		}
-	}
-	go incrementStats("TIMETABLE OUT: "+timetable, 1)
-	fmt.Println("confFromTimeTable: return OUT", tt.cfgout)
-	return tt.cfgout
-}
-
-func confFromIP(clientIP net.IP) string {
-
-	for _, ipgroup := range ZabovIPGroups {
-		for _, ip := range ipgroup.ips {
-			if clientIP.Equal(ip) {
-				if len(ipgroup.timetable) > 0 {
-					return confFromTimeTable(ipgroup.timetable)
-				}
-				fmt.Println("confFromIP: ipgroup.cfg")
-				return ipgroup.cfg
-			}
-		}
-	}
-	fmt.Println("confFromIP: return default")
-	return "default"
-}
 func (mydns *handler) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 	go incrementStats("TotalQueries", 1)
 
 	remIP, _, e := net.SplitHostPort(w.RemoteAddr().String())
 	if e != nil {
-		go incrementStats("CLIENT ERROR: "+remIP, 1)
-	} else {
 		go incrementStats("CLIENT: "+remIP, 1)
 	}
 
 	msg := dns.Msg{}
 	msg.SetReply(r)
 
-	config := confFromIP(net.ParseIP(remIP))
-
-	ZabovConfig := ZabovConfigs[config]
 	switch r.Question[0].Qtype {
 	case dns.TypeA:
 		msg.Authoritative = true
 		domain := msg.Question[0].Name
 		fqdn := strings.TrimRight(domain, ".")
 
-		if len(ZabovIPAliases[fqdn]) > 0 {
+		if domainInKillfile(fqdn) {
-			config = "__aliases__"
-			msg.Answer = append(msg.Answer, &dns.A{
-				Hdr: dns.RR_Header{Name: domain, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 60},
-				A:   net.ParseIP(ZabovIPAliases[fqdn]),
-			})
-			break
-		}
-		if len(ZabovLocalResponder) > 0 {
-			if !strings.Contains(fqdn, ".") ||
-				(len(ZabovLocalDomain) > 0 && strings.HasSuffix(fqdn, ZabovLocalDomain)) {
-				config = "__localresponder__"
-				ret := ForwardQuery(r, config, true)
-				w.WriteMsg(ret)
-				break
-			}
-
-		}
-		if domainInKillfile(fqdn, config) {
 			go incrementStats("Killed", 1)
 
 			msg.Answer = append(msg.Answer, &dns.A{
 				Hdr: dns.RR_Header{Name: domain, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: 60},
-				A:   net.ParseIP(ZabovConfig.ZabovAddBL),
+				A:   net.ParseIP(ZabovAddBL),
 			})
 		} else {
-			ret := ForwardQuery(r, config, false)
+			ret := ForwardQuery(r)
 			w.WriteMsg(ret)
 		}
 	default:
-		ret := ForwardQuery(r, config, false)
+		ret := ForwardQuery(r)
 		w.WriteMsg(ret)
 	}
-	go incrementStats("CONFIG: "+config, 1)
 	w.WriteMsg(&msg)
 
 }

hostfile.go

@@ -9,29 +9,12 @@ import (
 func init() {
 
 	fmt.Println("Ingesting local hosts file")
-	ingestLocalBlacklists()
+	ingestLocalBlacklist()
 
 }
 
-func ingestLocalBlacklists() {
+func ingestLocalBlacklist() {
 
-	fmt.Println("ingestLocalBlacklist: collecting urls from all configs...")
-	_files := urlsMap{}
-	for config := range ZabovConfigs {
-		ZabovHostsFile := ZabovConfigs[config].ZabovHostsFile
-		if len(ZabovHostsFile) == 0 {
-			continue
-		}
-		configs := _files[ZabovHostsFile]
-		if configs == nil {
-			configs = stringarray{}
-			_files[ZabovHostsFile] = configs
-		}
-		configs = append(configs, config)
-		_files[ZabovHostsFile] = configs
-	}
-
-	for ZabovHostsFile, configs := range _files {
 	file, err := os.Open(ZabovHostsFile)
 	if err != nil {
 		fmt.Println(err.Error())
@@ -41,7 +24,7 @@ func ingestLocalBlacklists() {
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		d := scanner.Text()
-			DomainKill(d, ZabovHostsFile, configs)
+		DomainKill(d, ZabovHostsFile)
 		incrementStats("Blacklist", 1)
 
 	}
@@ -49,7 +32,6 @@ func ingestLocalBlacklists() {
 	if err := scanner.Err(); err != nil {
 		fmt.Println(err.Error())
 	}
-	}
 
 }
 

main.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"log"
-	"net"
 
 	"github.com/miekg/dns"
 )
@@ -10,74 +9,32 @@ import (
 //MyDNS is my dns server
 var MyDNS *dns.Server
 
-//ZabovCacheTTL is the amount of hours we cache records of DNS (global)
+//ZabovUpDNS keeps the name of upstream DNSs
+var ZabovUpDNS string
+
+//ZabovSingleBL list of urls returning a file with just names of domains
+var ZabovSingleBL string
+
+//ZabovDoubleBL list of urls returning a file with  IP<space>domain
+var ZabovDoubleBL string
+
+//ZabovAddBL is the IP we want to send all the clients to. Usually is 127.0.0.1
+var ZabovAddBL string
+
+//ZabovCacheTTL is the amount of hours we cache records of DNS
 var ZabovCacheTTL int
 
-//ZabovKillTTL is the amount of hours we cache the killfile (global)
+//ZabovKillTTL is the amount of hours we cache the killfile
 var ZabovKillTTL int
 
-//ZabovLocalResponder is the default DNS server for loca domains
+//ZabovHostsFile is the file we use to keep our hosts
-var ZabovLocalResponder string
+var ZabovHostsFile string
 
-//ZabovLocalDomain is the default local domain
+//ZabovDNSArray is the array containing all the DNS we mention
-var ZabovLocalDomain string
+var ZabovDNSArray []string
 
 type handler struct{}
 
-// ZabovConfig contains all Zabov configs
-type ZabovConfig struct {
-	ZabovSingleBL  string   // json:singlefilters -> ZabovSingleBL list of urls returning a file with just names of domains
-	ZabovDoubleBL  string   // json:doublefilters -> ZabovDoubleBL list of urls returning a file with  IP<space>domain
-	ZabovAddBL     string   // json:blackholeip  -> ZabovAddBL is the IP we want to send all the clients to. Usually is 127.0.0.1
-	ZabovHostsFile string   // json:hostsfile -> ZabovHostsFile is the file we use to keep our hosts
-	ZabovUpDNS     string   // json:upstream -> ZabovUpDNS keeps the name of upstream DNSs
-	ZabovDNSArray  []string // contains all the DNS we mention, parsed from ZabovUpDNS file
-}
-
-// ZabovConfigs contains all Zabov configs
-var ZabovConfigs map[string]ZabovConfig
-
-// ZabovIPGroup contains Zabov groups of IPs
-type ZabovIPGroup struct {
-	ips       []net.IP // IPs in this group
-	cfg       string   // config name to be used if there is no timetable
-	timetable string   // timetable name to be used for this group; timetable SHALL reference to config name to use
-}
-
-// ZabovIPGroups contains an array of all Zabov groups of IP rules
-var ZabovIPGroups []ZabovIPGroup
-
-// ZabovTime contains Zabov single time
-type ZabovTime struct {
-	hour   int
-	minute int
-}
-
-// ZabovTimeRange contains Zabov single time range
-type ZabovTimeRange struct {
-	start ZabovTime
-	stop  ZabovTime
-}
-
-// ZabovTimetableEntry contains Zabov single time table entry
-type ZabovTimetableEntry struct {
-	times []*ZabovTimeRange
-	days  map[string]bool
-}
-
-// ZabovTimetable contains a Zabov time table
-type ZabovTimetable struct {
-	table  []*ZabovTimetableEntry
-	cfgin  string // configuration name to be used if "inside" timetable
-	cfgout string // configuration name to be used if "outiside" timetable
-}
-
-// ZabovTimetables contains all Zabov time tables, by name
-var ZabovTimetables map[string]*ZabovTimetable
-
-// ZabovIPAliases contains an array of all Zabov IP aliases
-var ZabovIPAliases map[string]string
-
 func main() {
 
 	MyDNS.Handler = &handler{}