54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
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package geolocate
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import (
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"net"
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"github.com/oschwald/geoip2-golang"
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)
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type mmdbLookupper struct{}
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func (mmdbLookupper) LookupASN(path, ip string) (asn uint, org string, err error) {
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asn, org = DefaultProbeASN, DefaultProbeNetworkName
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db, err := geoip2.Open(path)
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if err != nil {
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return
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}
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defer db.Close()
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record, err := db.ASN(net.ParseIP(ip))
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if err != nil {
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return
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}
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asn = record.AutonomousSystemNumber
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if record.AutonomousSystemOrganization != "" {
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org = record.AutonomousSystemOrganization
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}
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return
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}
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// LookupASN returns the ASN and the organization associated with the
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// given ip using the ASN database at path.
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func LookupASN(path, ip string) (asn uint, org string, err error) {
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return (mmdbLookupper{}).LookupASN(path, ip)
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}
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func (mmdbLookupper) LookupCC(path, ip string) (cc string, err error) {
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cc = DefaultProbeCC
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db, err := geoip2.Open(path)
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if err != nil {
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return
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}
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defer db.Close()
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record, err := db.Country(net.ParseIP(ip))
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if err != nil {
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return
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}
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// With MaxMind DB we used record.RegisteredCountry.IsoCode but that does
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// not seem to work with the db-ip.com database. The record is empty, at
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// least for my own IP address in Italy. --Simone (2020-02-25)
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if record.Country.IsoCode != "" {
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cc = record.Country.IsoCode
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}
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return
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}
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