2021-05-04 06:19:03 -04:00
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package memconservative
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import (
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2021-05-04 06:21:49 -04:00
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"io/ioutil"
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"strings"
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2021-05-04 06:19:03 -04:00
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"github.com/golang/protobuf/proto"
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"github.com/v2fly/v2ray-core/v4/app/router"
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"github.com/v2fly/v2ray-core/v4/common/platform"
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)
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type GeoIPCache map[string]*router.GeoIP
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func (g GeoIPCache) Has(key string) bool {
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return !(g.Get(key) == nil)
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}
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func (g GeoIPCache) Get(key string) *router.GeoIP {
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if g == nil {
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return nil
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}
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return g[key]
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}
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func (g GeoIPCache) Set(key string, value *router.GeoIP) {
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if g == nil {
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g = make(map[string]*router.GeoIP)
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}
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g[key] = value
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}
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func (g GeoIPCache) Unmarshal(filename, code string) (*router.GeoIP, error) {
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asset := platform.GetAssetLocation(filename)
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idx := strings.ToUpper(asset + "|" + code)
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if g.Has(idx) {
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return g.Get(idx), nil
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}
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geoipBytes, err := Decode(asset, code)
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switch err {
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case nil:
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var geoip router.GeoIP
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if err := proto.Unmarshal(geoipBytes, &geoip); err != nil {
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return nil, err
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}
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g.Set(idx, &geoip)
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return &geoip, nil
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case errCodeNotFound:
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return nil, newError(code, " not found in ", filename)
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case errFailedToReadBytes, errFailedToReadExpectedLenBytes,
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errInvalidGeodataFile, errInvalidGeodataVarintLength:
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newError("failed to decode geodata file: ", filename, ". Fallback to the original ReadFile method.").AtWarning().WriteToLog()
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geoipBytes, err = ioutil.ReadFile(asset)
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if err != nil {
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return nil, err
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}
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var geoipList router.GeoIPList
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if err := proto.Unmarshal(geoipBytes, &geoipList); err != nil {
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return nil, err
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}
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for _, geoip := range geoipList.GetEntry() {
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if strings.EqualFold(code, geoip.GetCountryCode()) {
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g.Set(idx, geoip)
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return geoip, nil
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}
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}
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default:
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return nil, err
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}
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return nil, newError(code, " not found in ", filename)
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}
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type GeoSiteCache map[string]*router.GeoSite
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func (g GeoSiteCache) Has(key string) bool {
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return !(g.Get(key) == nil)
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}
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func (g GeoSiteCache) Get(key string) *router.GeoSite {
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if g == nil {
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return nil
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}
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return g[key]
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}
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func (g GeoSiteCache) Set(key string, value *router.GeoSite) {
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if g == nil {
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g = make(map[string]*router.GeoSite)
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}
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g[key] = value
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}
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func (g GeoSiteCache) Unmarshal(filename, code string) (*router.GeoSite, error) {
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asset := platform.GetAssetLocation(filename)
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idx := strings.ToUpper(asset + "|" + code)
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if g.Has(idx) {
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return g.Get(idx), nil
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}
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geositeBytes, err := Decode(asset, code)
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switch err {
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case nil:
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var geosite router.GeoSite
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if err := proto.Unmarshal(geositeBytes, &geosite); err != nil {
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return nil, err
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}
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g.Set(idx, &geosite)
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return &geosite, nil
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case errCodeNotFound:
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return nil, newError(code, " not found in ", filename)
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case errFailedToReadBytes, errFailedToReadExpectedLenBytes,
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errInvalidGeodataFile, errInvalidGeodataVarintLength:
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newError("failed to decode geodata file: ", filename, ". Fallback to the original ReadFile method.").AtWarning().WriteToLog()
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geositeBytes, err = ioutil.ReadFile(asset)
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if err != nil {
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return nil, err
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}
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var geositeList router.GeoSiteList
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if err := proto.Unmarshal(geositeBytes, &geositeList); err != nil {
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return nil, err
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}
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for _, geosite := range geositeList.GetEntry() {
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if strings.EqualFold(code, geosite.GetCountryCode()) {
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g.Set(idx, geosite)
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return geosite, nil
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}
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}
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default:
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return nil, err
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}
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return nil, newError(code, " not found in ", filename)
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}
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