forked from ms/transocks
97 lines
1.6 KiB
Go
97 lines
1.6 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"net"
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"net/url"
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"git.mousesoft.ru/alexey/transocks"
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"github.com/BurntSushi/toml"
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"github.com/cybozu-go/log"
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"github.com/cybozu-go/well"
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)
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type tomlConfig struct {
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Listen string `toml:"listen"`
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ProxyURL string `toml:"proxy_url"`
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Log well.LogConfig `toml:"log"`
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}
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const (
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defaultAddr = "localhost:1081"
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)
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var (
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configFile = flag.String("f", "/etc/transocks.toml",
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"TOML configuration file path")
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)
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func loadConfig() (*transocks.Config, error) {
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tc := &tomlConfig{
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Listen: defaultAddr,
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}
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md, err := toml.DecodeFile(*configFile, tc)
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if err != nil {
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return nil, err
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}
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if len(md.Undecoded()) > 0 {
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return nil, fmt.Errorf("undecoded key in TOML: %v", md.Undecoded())
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}
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c := transocks.NewConfig()
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c.Addr = tc.Listen
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u, err := url.Parse(tc.ProxyURL)
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if err != nil {
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return nil, err
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}
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c.ProxyURL = u
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err = tc.Log.Apply()
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if err != nil {
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return nil, err
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}
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return c, nil
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}
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func serve(lns []net.Listener, c *transocks.Config) {
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s, err := transocks.NewServer(c)
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if err != nil {
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log.ErrorExit(err)
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}
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for _, ln := range lns {
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s.Serve(ln)
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}
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err = well.Wait()
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if err != nil && !well.IsSignaled(err) {
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log.ErrorExit(err)
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}
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}
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func main() {
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flag.Parse()
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c, err := loadConfig()
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if err != nil {
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log.ErrorExit(err)
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}
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g := &well.Graceful{
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Listen: func() ([]net.Listener, error) {
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return transocks.Listeners(c)
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},
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Serve: func(lns []net.Listener) {
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serve(lns, c)
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},
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}
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g.Run()
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err = well.Wait()
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if err != nil && !well.IsSignaled(err) {
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log.ErrorExit(err)
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}
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}
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