refactor: check-ip uses CheckIPConfig struct + flag.FlagSet, adds -V/help

This commit is contained in:
AJ ONeal 2026-04-20 12:54:13 -06:00
parent f5f992ae94
commit 8c9924e559
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@ -2,6 +2,7 @@ package main
import (
"context"
"errors"
"flag"
"fmt"
"os"
@ -23,26 +24,59 @@ const (
outboundNetworkURL = "https://github.com/bitwire-it/ipblocklist/raw/refs/heads/main/tables/outbound/networks.txt"
)
func main() {
dataDir := flag.String("data-dir", "", "blacklist cache dir (default ~/.cache/bitwire-it)")
gitURL := flag.String("git", "", "git URL to clone/pull blacklist from")
whitelist := flag.String("whitelist", "", "path to whitelist file")
inbound := flag.String("inbound", "", "comma-separated paths to inbound blacklist files")
outbound := flag.String("outbound", "", "comma-separated paths to outbound blacklist files")
geoipConf := flag.String("geoip-conf", "", "path to GeoIP.conf (auto-discovered if absent)")
cityDB := flag.String("city-db", "", "path to GeoLite2-City.mmdb (skips auto-download)")
asnDB := flag.String("asn-db", "", "path to GeoLite2-ASN.mmdb (skips auto-download)")
flag.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [flags] <ip-address>\n", os.Args[0])
flag.PrintDefaults()
type CheckIPConfig struct {
DataDir string
GitURL string
Whitelist string
Inbound string
Outbound string
GeoIPConf string
CityDB string
ASNDB string
}
flag.Parse()
if flag.NArg() != 1 {
flag.Usage()
func main() {
cfg := CheckIPConfig{}
fs := flag.NewFlagSet(os.Args[0], flag.ContinueOnError)
fs.StringVar(&cfg.DataDir, "data-dir", "", "blacklist cache dir (default ~/.cache/bitwire-it)")
fs.StringVar(&cfg.GitURL, "git", "", "git URL to clone/pull blacklist from")
fs.StringVar(&cfg.Whitelist, "whitelist", "", "path to whitelist file")
fs.StringVar(&cfg.Inbound, "inbound", "", "comma-separated paths to inbound blacklist files")
fs.StringVar(&cfg.Outbound, "outbound", "", "comma-separated paths to outbound blacklist files")
fs.StringVar(&cfg.GeoIPConf, "geoip-conf", "", "path to GeoIP.conf (auto-discovered if absent)")
fs.StringVar(&cfg.CityDB, "city-db", "", "path to GeoLite2-City.mmdb (skips auto-download)")
fs.StringVar(&cfg.ASNDB, "asn-db", "", "path to GeoLite2-ASN.mmdb (skips auto-download)")
fs.Usage = func() {
fmt.Fprintf(os.Stderr, "Usage: %s [flags] <ip-address>\n", os.Args[0])
fs.PrintDefaults()
}
if len(os.Args) > 1 {
switch os.Args[1] {
case "-V", "-version", "--version", "version":
fmt.Fprintf(os.Stdout, "check-ip\n")
os.Exit(0)
case "help", "-help", "--help":
fmt.Fprintf(os.Stdout, "check-ip\n\n")
fs.SetOutput(os.Stdout)
fs.Usage()
os.Exit(0)
}
}
if err := fs.Parse(os.Args[1:]); err != nil {
if errors.Is(err, flag.ErrHelp) {
os.Exit(0)
}
os.Exit(1)
}
ipStr := flag.Arg(0)
if fs.NArg() != 1 {
fs.Usage()
os.Exit(1)
}
ipStr := fs.Arg(0)
// -- Blacklist ----------------------------------------------------------
@ -53,20 +87,20 @@ func main() {
)
switch {
case *inbound != "" || *outbound != "":
case cfg.Inbound != "" || cfg.Outbound != "":
syncer = dataset.NopSyncer{}
inboundPaths = splitPaths(*inbound)
outboundPaths = splitPaths(*outbound)
inboundPaths = splitPaths(cfg.Inbound)
outboundPaths = splitPaths(cfg.Outbound)
case *gitURL != "":
dir := cacheDir(*dataDir, "bitwire-it")
gr := gitshallow.New(*gitURL, dir, 1, "")
case cfg.GitURL != "":
dir := cacheDir(cfg.DataDir, "bitwire-it")
gr := gitshallow.New(cfg.GitURL, dir, 1, "")
syncer = gr
inboundPaths = []string{gr.FilePath("tables/inbound/single_ips.txt"), gr.FilePath("tables/inbound/networks.txt")}
outboundPaths = []string{gr.FilePath("tables/outbound/single_ips.txt"), gr.FilePath("tables/outbound/networks.txt")}
default:
dir := cacheDir(*dataDir, "bitwire-it")
dir := cacheDir(cfg.DataDir, "bitwire-it")
inSingle := httpcache.New(inboundSingleURL, filepath.Join(dir, "inbound_single_ips.txt"))
inNetwork := httpcache.New(inboundNetworkURL, filepath.Join(dir, "inbound_networks.txt"))
outSingle := httpcache.New(outboundSingleURL, filepath.Join(dir, "outbound_single_ips.txt"))
@ -88,8 +122,8 @@ func main() {
inboundDS.Load().Size(), outboundDS.Load().Size())
var whitelistDS *dataset.Dataset[ipcohort.Cohort]
if *whitelist != "" {
whitelistDS = dataset.New(dataset.NopSyncer{}, loadCohort(splitPaths(*whitelist)...))
if cfg.Whitelist != "" {
whitelistDS = dataset.New(dataset.NopSyncer{}, loadCohort(splitPaths(cfg.Whitelist)...))
if err := whitelistDS.Init(); err != nil {
fmt.Fprintf(os.Stderr, "error: whitelist: %v\n", err)
os.Exit(1)
@ -98,7 +132,7 @@ func main() {
// -- GeoIP (optional) --------------------------------------------------
geo, err := geoip.OpenDatabases(*geoipConf, *cityDB, *asnDB)
geo, err := geoip.OpenDatabases(cfg.GeoIPConf, cfg.CityDB, cfg.ASNDB)
if err != nil {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
os.Exit(1)