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config.go
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config.go
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// Copyright (C) 2020-2021, 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/>.
package coremain
import (
"github.com/IrineSistiana/mosdns/dispatcher/handler"
"github.com/IrineSistiana/mosdns/dispatcher/plugin/executable/forward"
"github.com/IrineSistiana/mosdns/dispatcher/plugin/server"
"gopkg.in/yaml.v3"
"io/ioutil"
"os"
)
// Config is config
type Config struct {
Log struct {
Level string `yaml:"level"`
File string `yaml:"file"`
} `yaml:"log"`
Plugin []*handler.Config `yaml:"plugin"`
Include []string `yaml:"include"`
}
// parseConfig loads a yaml config from path f.
func parseConfig(f string) (*Config, error) {
c := new(Config)
b, err := ioutil.ReadFile(f)
if err != nil {
return nil, err
}
if err := yaml.Unmarshal(b, c); err != nil {
return nil, err
}
return c, nil
}
// GenConfig generates a config template to path p.
func GenConfig(p string) error {
c, err := GetTemplateConfig()
if err != nil {
return err
}
return c.Save(p)
}
func (c *Config) Save(p string) error {
f, err := os.Create(p)
if err != nil {
return err
}
defer f.Close()
encoder := yaml.NewEncoder(f)
encoder.SetIndent(2)
defer encoder.Close()
err = encoder.Encode(c)
if err != nil {
return err
}
return err
}
func (c *Config) AddPlugin(tag, typ string, args interface{}) error {
out, err := objToGeneral(args)
if err != nil {
return err
}
c.Plugin = append(c.Plugin, &handler.Config{
Tag: tag,
Type: typ,
Args: out,
})
return nil
}
func objToGeneral(in interface{}) (out map[string]interface{}, err error) {
b, err := yaml.Marshal(in)
if err != nil {
return nil, err
}
out = make(map[string]interface{})
err = yaml.Unmarshal(b, out)
if err != nil {
return nil, err
}
return out, nil
}
func GetTemplateConfig() (*Config, error) {
c := new(Config)
err := c.AddPlugin("server", server.PluginType, server.Args{
Server: []*server.ServerConfig{
{Protocol: "udp", Addr: "127.0.0.1:53"},
{Protocol: "tcp", Addr: "127.0.0.1:53"},
{Protocol: "udp", Addr: "[::1]:53"},
{Protocol: "tcp", Addr: "[::1]:53"},
},
Entry: "forward_google_doh",
})
if err != nil {
return nil, err
}
err = c.AddPlugin("forward_google_doh", forward.PluginType, forward.Args{
Upstream: []forward.Upstream{
{
Addr: "https://dns.google/dns-query",
IPAddr: []string{"8.8.8.8", "2001:4860:4860::8888"},
},
},
Timeout: 10,
})
if err != nil {
return nil, err
}
return c, nil
}