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4d2066a76d
* Start cleaning up linter errors. For #357 * Fix unmarshalling NullTime values * More linter fixes * Remove commented code * Move defer up * Consolidate error check lines * Move error check to make sure row iteration was successful * Cleaner error check + do not recreate pipe if it exists * Consolidate hashing to generate client id
83 lines
2 KiB
Go
83 lines
2 KiB
Go
// This package utilizes the MaxMind GeoLite2 GeoIP database https://dev.maxmind.com/geoip/geoip2/geolite2/.
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// You must provide your own copy of this database for it to work.
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// Read more about how this works at http://owncast.online/docs/geoip
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package geoip
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import (
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"net"
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"github.com/oschwald/geoip2-golang"
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"github.com/owncast/owncast/config"
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log "github.com/sirupsen/logrus"
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)
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var _geoIPCache = map[string]GeoDetails{}
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var _enabled = true // Try to use GeoIP support it by default.
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// GeoDetails stores details about a location.
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type GeoDetails struct {
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CountryCode string `json:"countryCode"`
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RegionName string `json:"regionName"`
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TimeZone string `json:"timeZone"`
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}
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// GetGeoFromIP returns geo details associated with an IP address if we
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// have previously fetched it.
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func GetGeoFromIP(ip string) *GeoDetails {
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if cachedGeoDetails, ok := _geoIPCache[ip]; ok {
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return &cachedGeoDetails
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}
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return nil
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}
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// FetchGeoForIP makes an API call to get geo details for an IP address.
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func FetchGeoForIP(ip string) {
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// If GeoIP has been disabled then don't try to access it.
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if !_enabled {
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return
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}
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// Don't re-fetch if we already have it.
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if _, ok := _geoIPCache[ip]; ok {
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return
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}
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go func() {
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db, err := geoip2.Open(config.GeoIPDatabasePath)
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if err != nil {
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log.Traceln("GeoIP support is disabled. visit http://owncast.online/docs/geoip to learn how to enable.", err)
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_enabled = false
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return
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}
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defer db.Close()
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ipObject := net.ParseIP(ip)
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record, err := db.City(ipObject)
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if err != nil {
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log.Warnln(err)
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return
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}
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// If no country is available then exit
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if record.Country.IsoCode == "" {
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return
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}
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// If we believe this IP to be anonymous then no reason to report it
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if record.Traits.IsAnonymousProxy {
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return
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}
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response := GeoDetails{
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CountryCode: record.Country.IsoCode,
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RegionName: record.Subdivisions[0].Names["en"],
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TimeZone: record.Location.TimeZone,
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}
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_geoIPCache[ip] = response
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}()
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}
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