Das klappt, lässt aber den RAM explodieren.

This commit is contained in:
2025-06-11 20:45:50 +02:00
parent 13bfc5500a
commit 2b9f59da02

269
main.go
View File

@@ -8,10 +8,12 @@ import (
"fmt"
"io"
"log"
"net"
"net/http"
"net/netip"
"os"
"sort"
"strconv"
"strings"
"sync"
"time"
@@ -39,7 +41,11 @@ func loadConfig() Config {
// default Blocklist source
srcs := []Source{{
Category: "generic",
URL: []string{"https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level1.netset"},
URL: []string{
"https://raw.githubusercontent.com/firehol/blocklist-ipsets/master/firehol_level1.netset",
"https://raw.githubusercontent.com/bitwire-it/ipblocklist/refs/heads/main/ip-list.txt",
"",
},
}}
if env := os.Getenv("BLOCKLIST_SOURCES"); env != "" {
@@ -75,7 +81,8 @@ func loadConfig() Config {
isWorker := strings.ToLower(os.Getenv("ROLE")) == "worker"
return Config{
RedisAddr: getenv("REDIS_ADDR", "redis:6379"),
//RedisAddr: getenv("REDIS_ADDR", "redis:6379"),
RedisAddr: getenv("REDIS_ADDR", "10.10.5.249:6379"),
Sources: srcs,
TTLHours: ttl,
IsWorker: isWorker,
@@ -440,6 +447,235 @@ func writeJSON(w http.ResponseWriter, v any) {
_ = json.NewEncoder(w).Encode(v)
}
// -----------------------------------------------------------------------------
// Class-Download from RIRs
// -----------------------------------------------------------------------------
// Liste der Delegated Files aller 5 RIRs
var rirFiles = []string{
"https://ftp.ripe.net/pub/stats/ripencc/delegated-ripencc-latest",
"https://ftp.apnic.net/stats/apnic/delegated-apnic-latest",
"https://ftp.arin.net/pub/stats/arin/delegated-arin-extended-latest",
"https://ftp.lacnic.net/pub/stats/lacnic/delegated-lacnic-latest",
"https://ftp.afrinic.net/pub/stats/afrinic/delegated-afrinic-latest",
}
// Hauptfunktion: gibt alle IPv4-Ranges eines Landes (CIDR) aus allen RIRs zurück
func GetIPRangesByCountry(countryCode string) ([]string, error) {
var allCIDRs []string
upperCode := strings.ToUpper(countryCode)
for _, url := range rirFiles {
resp, err := http.Get(url)
if err != nil {
return nil, fmt.Errorf("fehler beim abrufen von %s: %w", url, err)
}
defer resp.Body.Close()
scanner := bufio.NewScanner(resp.Body)
for scanner.Scan() {
line := scanner.Text()
if strings.HasPrefix(line, "2") || strings.HasPrefix(line, "#") {
continue // Kommentar oder Header
}
if strings.Contains(line, "|"+upperCode+"|ipv4|") {
fields := strings.Split(line, "|")
if len(fields) < 5 {
continue
}
ipStart := fields[3]
count, _ := strconv.Atoi(fields[4])
cidrs := summarizeCIDR(ipStart, count)
allCIDRs = append(allCIDRs, cidrs...)
}
}
}
return allCIDRs, nil
}
// Hilfsfunktion: Start-IP + Anzahl → []CIDR
func summarizeCIDR(start string, count int) []string {
var cidrs []string
ip := net.ParseIP(start).To4()
startInt := ipToInt(ip)
for count > 0 {
maxSize := 32
for maxSize > 0 {
mask := 1 << uint(32-maxSize)
if startInt%uint32(mask) == 0 && mask <= count {
break
}
maxSize--
}
cidr := fmt.Sprintf("%s/%d", intToIP(startInt), maxSize)
cidrs = append(cidrs, cidr)
count -= 1 << uint(32-maxSize)
startInt += uint32(1 << uint(32-maxSize))
}
return cidrs
}
func ipToInt(ip net.IP) uint32 {
return uint32(ip[0])<<24 + uint32(ip[1])<<16 + uint32(ip[2])<<8 + uint32(ip[3])
}
func intToIP(i uint32) net.IP {
return net.IPv4(byte(i>>24), byte(i>>16), byte(i>>8), byte(i))
}
// Alle gültigen ISO 3166-1 Alpha-2 Ländercodes (abgekürzt, reale Liste ist länger)
var allCountryCodes = []string{
"AD", "AE", "AF", "AG", "AI", "AL", "AM", "AO", "AR", "AT", "AU", "AZ",
"BA", "BB", "BD", "BE", "BF", "BG", "BH", "BI", "BJ", "BN", "BO", "BR", "BS",
"BT", "BW", "BY", "BZ", "CA", "CD", "CF", "CG", "CH", "CI", "CL", "CM", "CN",
"CO", "CR", "CU", "CV", "CY", "CZ", "DE", "DJ", "DK", "DM", "DO", "DZ", "EC",
"EE", "EG", "ER", "ES", "ET", "FI", "FJ", "FM", "FR", "GA", "GB", "GD", "GE",
"GH", "GM", "GN", "GQ", "GR", "GT", "GW", "GY", "HK", "HN", "HR", "HT", "HU",
"ID", "IE", "IL", "IN", "IQ", "IR", "IS", "IT", "JM", "JO", "JP", "KE", "KG",
"KH", "KI", "KM", "KN", "KP", "KR", "KW", "KZ", "LA", "LB", "LC", "LI", "LK",
"LR", "LS", "LT", "LU", "LV", "LY", "MA", "MC", "MD", "ME", "MG", "MH", "MK",
"ML", "MM", "MN", "MR", "MT", "MU", "MV", "MW", "MX", "MY", "MZ", "NA", "NE",
"NG", "NI", "NL", "NO", "NP", "NR", "NZ", "OM", "PA", "PE", "PG", "PH", "PK",
"PL", "PT", "PW", "PY", "QA", "RO", "RS", "RU", "RW", "SA", "SB", "SC", "SD",
"SE", "SG", "SI", "SK", "SL", "SM", "SN", "SO", "SR", "ST", "SV", "SY", "SZ",
"TD", "TG", "TH", "TJ", "TL", "TM", "TN", "TO", "TR", "TT", "TV", "TZ", "UA",
"UG", "US", "UY", "UZ", "VC", "VE", "VN", "VU", "WS", "YE", "ZA", "ZM", "ZW",
}
// Aufruffunktion für alle Ländercodes
func GetAllCountryIPRanges() (map[string][]string, error) {
allResults := make(map[string][]string)
for _, code := range allCountryCodes {
fmt.Printf("Verarbeite %s...\n", code)
cidrs, err := GetIPRangesByCountry(code)
if err != nil {
fmt.Printf("Fehler bei %s: %v\n", code, err)
continue
}
if len(cidrs) > 0 {
allResults[code] = cidrs
}
}
return allResults, nil
}
// Bessere und optimierte Routine
func GetAllCountryPrefixes() (map[string][]netip.Prefix, error) {
var (
resultMu sync.Mutex
results = make(map[string][]netip.Prefix)
wg sync.WaitGroup
sem = make(chan struct{}, 10) // max. 10 gleichzeitige Länder
)
for _, code := range allCountryCodes {
wg.Add(1)
sem <- struct{}{} // blockiert wenn mehr als 10 laufen
go func(countryCode string) {
defer wg.Done()
defer func() { <-sem }() // Slot freigeben
fmt.Printf("Verarbeite %s...\n", countryCode)
cidrs, err := GetIPRangesByCountry(countryCode)
if err != nil {
log.Printf("Fehler bei %s: %v", countryCode, err)
return
}
var validPrefixes []netip.Prefix
for _, c := range cidrs {
prefix, err := netip.ParsePrefix(c)
if err != nil {
log.Printf("CIDR-Fehler [%s]: %v", c, err)
continue
}
validPrefixes = append(validPrefixes, prefix)
}
if len(validPrefixes) > 0 {
resultMu.Lock()
results[countryCode] = validPrefixes
resultMu.Unlock()
}
}(code)
}
wg.Wait()
return results, nil
}
// Option 2
func LoadAllCountryPrefixesIntoRedisAndRanger(
ctx context.Context,
rdb *redis.Client,
ranger *Ranger,
ttlHours int,
) error {
var (
resultMu sync.Mutex
wg sync.WaitGroup
sem = make(chan struct{}, 10) // max. 10 gleichzeitige Downloads
)
expiry := time.Duration(ttlHours) * time.Hour
results := make(map[string][]netip.Prefix)
for _, code := range allCountryCodes {
wg.Add(1)
sem <- struct{}{} // Slot reservieren
go func(countryCode string) {
defer wg.Done()
defer func() { <-sem }() // Slot freigeben
fmt.Printf("Lade %s...\n", countryCode)
cidrs, err := GetIPRangesByCountry(countryCode)
if err != nil {
log.Printf("Fehler bei %s: %v", countryCode, err)
return
}
var validPrefixes []netip.Prefix
for _, c := range cidrs {
prefix, err := netip.ParsePrefix(c)
if err != nil {
log.Printf("CIDR ungültig [%s]: %v", c, err)
continue
}
validPrefixes = append(validPrefixes, prefix)
}
if len(validPrefixes) > 0 {
resultMu.Lock()
results[countryCode] = validPrefixes
resultMu.Unlock()
}
}(code)
}
wg.Wait()
// Nach Verarbeitung: alles in Ranger + Redis eintragen
for code, prefixes := range results {
for _, p := range prefixes {
ranger.addBlock(code, p)
key := keyBlock(code, p)
if err := rdb.Set(ctx, key, "1", expiry).Err(); err != nil {
log.Printf("Redis-Fehler bei %s: %v", key, err)
}
}
}
return nil
}
// -----------------------------------------------------------------------------
// MAIN
// -----------------------------------------------------------------------------
@@ -463,6 +699,35 @@ func main() {
subscribeKeyspace(ctx, rdb, ranger)
/*a, _ := GetAllCountryIPRanges()
for _, code := range allCountryCodes {
for _, b := range a[code] {
prefix, err := netip.ParsePrefix(b)
if err != nil {
log.Printf("ungültiger Prefix '%s': %v", b, err)
continue
}
ranger.addBlock(code, prefix)
}
}*/
/*allPrefixes, err := GetAllCountryPrefixes()
if err != nil {
log.Fatalf("Fehler beim Laden: %v", err)
}
// In den Ranger einfügen
for code, prefixes := range allPrefixes {
for _, p := range prefixes {
ranger.addBlock(code, p)
}
}*/
if err := LoadAllCountryPrefixesIntoRedisAndRanger(ctx, rdb, ranger, cfg.TTLHours); err != nil {
log.Fatalf("Fehler beim Laden aller Länderranges: %v", err)
}
if cfg.IsWorker {
go syncLoop(ctx, cfg, rdb, ranger)
}