* Allow any parser to suggest a format string for the date to be parsed. * allow the enricher functions to get the parser's logger so they can inherit the level
131 lines
3.5 KiB
Go
131 lines
3.5 KiB
Go
package parser
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"strconv"
|
|
|
|
"github.com/crowdsecurity/crowdsec/pkg/types"
|
|
log "github.com/sirupsen/logrus"
|
|
|
|
"github.com/oschwald/geoip2-golang"
|
|
"github.com/oschwald/maxminddb-golang"
|
|
)
|
|
|
|
func IpToRange(field string, p *types.Event, ctx interface{}, plog *log.Entry) (map[string]string, error) {
|
|
var dummy interface{}
|
|
ret := make(map[string]string)
|
|
|
|
if field == "" {
|
|
return nil, nil
|
|
}
|
|
ip := net.ParseIP(field)
|
|
if ip == nil {
|
|
plog.Infof("Can't parse ip %s, no range enrich", field)
|
|
return nil, nil
|
|
}
|
|
net, ok, err := ctx.(*maxminddb.Reader).LookupNetwork(ip, &dummy)
|
|
if err != nil {
|
|
plog.Errorf("Failed to fetch network for %s : %v", ip.String(), err)
|
|
return nil, nil
|
|
}
|
|
if !ok {
|
|
plog.Debugf("Unable to find range of %s", ip.String())
|
|
return nil, nil
|
|
}
|
|
ret["SourceRange"] = net.String()
|
|
return ret, nil
|
|
}
|
|
|
|
func GeoIpASN(field string, p *types.Event, ctx interface{}, plog *log.Entry) (map[string]string, error) {
|
|
ret := make(map[string]string)
|
|
if field == "" {
|
|
return nil, nil
|
|
}
|
|
|
|
ip := net.ParseIP(field)
|
|
if ip == nil {
|
|
plog.Infof("Can't parse ip %s, no ASN enrich", ip)
|
|
return nil, nil
|
|
}
|
|
record, err := ctx.(*geoip2.Reader).ASN(ip)
|
|
if err != nil {
|
|
plog.Errorf("Unable to enrich ip '%s'", field)
|
|
return nil, nil
|
|
}
|
|
ret["ASNNumber"] = fmt.Sprintf("%d", record.AutonomousSystemNumber)
|
|
ret["ASNumber"] = fmt.Sprintf("%d", record.AutonomousSystemNumber)
|
|
ret["ASNOrg"] = record.AutonomousSystemOrganization
|
|
|
|
plog.Tracef("geoip ASN %s -> %s, %s", field, ret["ASNNumber"], ret["ASNOrg"])
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
func GeoIpCity(field string, p *types.Event, ctx interface{}, plog *log.Entry) (map[string]string, error) {
|
|
ret := make(map[string]string)
|
|
if field == "" {
|
|
return nil, nil
|
|
}
|
|
ip := net.ParseIP(field)
|
|
if ip == nil {
|
|
plog.Infof("Can't parse ip %s, no City enrich", ip)
|
|
return nil, nil
|
|
}
|
|
record, err := ctx.(*geoip2.Reader).City(ip)
|
|
if err != nil {
|
|
plog.Debugf("Unable to enrich ip '%s'", ip)
|
|
return nil, nil
|
|
}
|
|
if record.Country.IsoCode != "" {
|
|
ret["IsoCode"] = record.Country.IsoCode
|
|
ret["IsInEU"] = strconv.FormatBool(record.Country.IsInEuropeanUnion)
|
|
} else if record.RegisteredCountry.IsoCode != "" {
|
|
ret["IsoCode"] = record.RegisteredCountry.IsoCode
|
|
ret["IsInEU"] = strconv.FormatBool(record.RegisteredCountry.IsInEuropeanUnion)
|
|
} else if record.RepresentedCountry.IsoCode != "" {
|
|
ret["IsoCode"] = record.RepresentedCountry.IsoCode
|
|
ret["IsInEU"] = strconv.FormatBool(record.RepresentedCountry.IsInEuropeanUnion)
|
|
} else {
|
|
ret["IsoCode"] = ""
|
|
ret["IsInEU"] = strconv.FormatBool(false)
|
|
}
|
|
|
|
ret["Latitude"] = fmt.Sprintf("%f", record.Location.Latitude)
|
|
ret["Longitude"] = fmt.Sprintf("%f", record.Location.Longitude)
|
|
|
|
plog.Tracef("geoip City %s -> %s, %s", field, ret["IsoCode"], ret["IsInEU"])
|
|
|
|
return ret, nil
|
|
}
|
|
|
|
func GeoIPCityInit(cfg map[string]string) (interface{}, error) {
|
|
dbCityReader, err := geoip2.Open(cfg["datadir"] + "/GeoLite2-City.mmdb")
|
|
if err != nil {
|
|
log.Debugf("couldn't open geoip : %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
return dbCityReader, nil
|
|
}
|
|
|
|
func GeoIPASNInit(cfg map[string]string) (interface{}, error) {
|
|
dbASReader, err := geoip2.Open(cfg["datadir"] + "/GeoLite2-ASN.mmdb")
|
|
if err != nil {
|
|
log.Debugf("couldn't open geoip : %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
return dbASReader, nil
|
|
}
|
|
|
|
func IpToRangeInit(cfg map[string]string) (interface{}, error) {
|
|
ipToRangeReader, err := maxminddb.Open(cfg["datadir"] + "/GeoLite2-ASN.mmdb")
|
|
if err != nil {
|
|
log.Debugf("couldn't open geoip : %v", err)
|
|
return nil, err
|
|
}
|
|
|
|
return ipToRangeReader, nil
|
|
}
|