43 lines
762 B
Go
43 lines
762 B
Go
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package cidr
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import (
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"net"
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"strings"
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"github.com/pkg/errors"
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)
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func MatchAny(hostPort string, CIDRs ...string) (bool, error) {
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var remoteHost string
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if strings.Contains(hostPort, ":") {
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var err error
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remoteHost, _, err = net.SplitHostPort(hostPort)
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if err != nil {
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return false, errors.WithStack(err)
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}
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} else {
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remoteHost = hostPort
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}
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remoteAddr := net.ParseIP(remoteHost)
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if remoteAddr == nil {
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return false, errors.Errorf("remote host '%s' is not a valid ip address", remoteHost)
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}
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for _, rawCIDR := range CIDRs {
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_, net, err := net.ParseCIDR(rawCIDR)
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if err != nil {
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return false, errors.WithStack(err)
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}
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match := net.Contains(remoteAddr)
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if !match {
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continue
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}
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return true, nil
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}
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return false, nil
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}
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