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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package mmdb | ||
|
|
||
| import ( | ||
| "github.com/IrineSistiana/mosdns/v5/coremain" | ||
| "github.com/IrineSistiana/mosdns/v5/plugin/data_provider" | ||
| "github.com/oschwald/geoip2-golang" | ||
| ) | ||
|
|
||
| const PluginType = "mmdb" | ||
|
|
||
| func init() { | ||
| coremain.RegNewPluginFunc(PluginType, Init, func() any { return new(Args) }) | ||
| } | ||
|
|
||
| func Init(bp *coremain.BP, args any) (any, error) { | ||
| return NewMmdb(bp, args.(*Args)) | ||
| } | ||
|
|
||
| type Args struct { | ||
| File string `yaml:"file"` | ||
| } | ||
|
|
||
| var _ data_provider.MmdbMatcherProvider = (*Mmdb)(nil) | ||
|
|
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| type Mmdb struct { | ||
| mmdb *geoip2.Reader | ||
| } | ||
|
|
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| func (m *Mmdb) GetMmdbMatcher() *geoip2.Reader { | ||
| return m.mmdb | ||
| } | ||
|
|
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| func NewMmdb(bp *coremain.BP, args *Args) (*Mmdb, error) { | ||
| m := &Mmdb{} | ||
|
|
||
| db, err := geoip2.Open(args.File) | ||
| if err == nil { | ||
| m.mmdb = db | ||
| } | ||
|
|
||
| return m, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| /* | ||
| * Copyright (C) 2020-2022, IrineSistiana | ||
| * | ||
| * This file is part of mosdns. | ||
| * | ||
| * mosdns is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * mosdns is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
| */ | ||
|
|
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| package resp_ip_mmdb | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
| "fmt" | ||
| "net" | ||
| "strings" | ||
|
|
||
| "github.com/IrineSistiana/mosdns/v5/pkg/query_context" | ||
| "github.com/IrineSistiana/mosdns/v5/plugin/data_provider" | ||
| "github.com/IrineSistiana/mosdns/v5/plugin/executable/sequence" | ||
| "github.com/miekg/dns" | ||
| "github.com/oschwald/geoip2-golang" | ||
| ) | ||
|
|
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| const PluginType = "resp_ip_mmdb" | ||
|
|
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| func init() { | ||
| sequence.MustRegMatchQuickSetup(PluginType, QuickSetup) | ||
| } | ||
|
|
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| func QuickSetup(bq sequence.BQ, s string) (sequence.Matcher, error) { | ||
| if len(s) == 0 { | ||
| return nil, errors.New("a iso code probability is required") | ||
| } | ||
|
|
||
| args := strings.Fields(s) | ||
| if len(args) != 2 { | ||
| return nil, errors.New("probability error, must like: resp_ip_mmdb $plugin_name CN") | ||
| } | ||
|
|
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| mmdbName, _ := cutPrefix(args[0], "$") | ||
|
|
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| p := bq.M().GetPlugin(mmdbName) | ||
| provider, _ := p.(data_provider.MmdbMatcherProvider) | ||
| if provider == nil { | ||
| return nil, fmt.Errorf("cannot find mmdb %s", mmdbName) | ||
| } | ||
| m := provider.GetMmdbMatcher() | ||
|
|
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| return &Matcher{args[1], m}, nil | ||
| } | ||
|
|
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| type Matcher struct { | ||
| isoCode string | ||
| mmdb *geoip2.Reader | ||
| } | ||
|
|
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| func (m *Matcher) Match(_ context.Context, qCtx *query_context.Context) (bool, error) { | ||
| r := qCtx.R() | ||
| if r == nil { | ||
| return false, nil | ||
| } | ||
|
|
||
| if m.mmdb == nil { | ||
| return false, nil | ||
| } | ||
|
|
||
| for _, rr := range r.Answer { | ||
| var ip net.IP | ||
| switch rr := rr.(type) { | ||
| case *dns.A: | ||
| ip = rr.A | ||
| case *dns.AAAA: | ||
| ip = rr.AAAA | ||
| default: | ||
| continue | ||
| } | ||
|
|
||
| record, err := m.mmdb.Country(ip) | ||
| if err != nil { | ||
| continue | ||
| } | ||
|
|
||
| if record.Country.IsoCode == m.isoCode { | ||
| return true, nil | ||
| } | ||
| } | ||
|
|
||
| return false, nil | ||
| } | ||
|
|
||
| func cutPrefix(s string, p string) (string, bool) { | ||
| if strings.HasPrefix(s, p) { | ||
| return strings.TrimPrefix(s, p), true | ||
| } | ||
| return s, false | ||
| } |