styx/filters/akamai.go
2020-02-14 20:46:09 +01:00

53 lines
958 B
Go

package filters
import (
"bufio"
"io/ioutil"
"net"
"os"
"path/filepath"
"runtime"
"github.com/sirupsen/logrus"
)
var (
_, b, _, _ = runtime.Caller(0)
basepath = filepath.Dir(b)
)
// RunFilters runs the battery of filters for an IP.
func RunIPFilters(ip net.IP) bool {
if ip.To4() != nil {
path := basepath + "/data/ipv4/"
sliceIPv4, err := ioutil.ReadDir(path)
if err != nil {
logrus.Warn("filters#ReadDir#ipv4", err)
}
for _, name := range sliceIPv4 {
f, err := os.OpenFile(path+name.Name(), 1, 0644)
if err != nil {
logrus.Warn("filters#OpenFile#", err)
}
scanner := bufio.NewScanner(f)
for scanner.Scan() {
_, ipNet, err := net.ParseCIDR(scanner.Text())
if err != nil {
continue
}
if ipNet.Contains(ip) {
return true
}
}
}
} else if ip.To16() != nil {
// run ipv6 filter battery
} else {
logrus.Error("filters#invalid IP format")
return false
}
return false
}