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shadowsocks.go
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shadowsocks.go
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package settings
import (
"fmt"
"github.com/qdm12/gosettings"
"github.com/qdm12/gosettings/reader"
"github.com/qdm12/gotree"
"github.com/qdm12/ss-server/pkg/tcpudp"
)
// Shadowsocks contains settings to configure the Shadowsocks server.
type Shadowsocks struct {
// Enabled is true if the server should be running.
// It defaults to false, and cannot be nil in the internal state.
Enabled *bool
// Settings are settings for the TCP+UDP server.
tcpudp.Settings
}
func (s Shadowsocks) validate() (err error) {
return s.Settings.Validate()
}
func (s *Shadowsocks) copy() (copied Shadowsocks) {
return Shadowsocks{
Enabled: gosettings.CopyPointer(s.Enabled),
Settings: s.Settings.Copy(),
}
}
// overrideWith overrides fields of the receiver
// settings object with any field set in the other
// settings.
func (s *Shadowsocks) overrideWith(other Shadowsocks) {
s.Enabled = gosettings.OverrideWithPointer(s.Enabled, other.Enabled)
s.Settings.OverrideWith(other.Settings)
}
func (s *Shadowsocks) setDefaults() {
s.Enabled = gosettings.DefaultPointer(s.Enabled, false)
s.Settings.SetDefaults()
}
func (s Shadowsocks) String() string {
return s.toLinesNode().String()
}
func (s Shadowsocks) toLinesNode() (node *gotree.Node) {
node = gotree.New("Shadowsocks server settings:")
node.Appendf("Enabled: %s", gosettings.BoolToYesNo(s.Enabled))
if !*s.Enabled {
return node
}
// TODO have ToLinesNode in qdm12/ss-server
node.Appendf("Listening address: %s", *s.Settings.Address)
node.Appendf("Cipher: %s", s.Settings.CipherName)
node.Appendf("Password: %s", gosettings.ObfuscateKey(*s.Settings.Password))
node.Appendf("Log addresses: %s", gosettings.BoolToYesNo(s.Settings.LogAddresses))
return node
}
func (s *Shadowsocks) read(r *reader.Reader) (err error) {
s.Enabled, err = r.BoolPtr("SHADOWSOCKS")
if err != nil {
return err
}
s.Settings.Address, err = readShadowsocksAddress(r)
if err != nil {
return err
}
s.Settings.LogAddresses, err = r.BoolPtr("SHADOWSOCKS_LOG")
if err != nil {
return err
}
s.Settings.CipherName = r.String("SHADOWSOCKS_CIPHER",
reader.RetroKeys("SHADOWSOCKS_METHOD"))
s.Settings.Password = r.Get("SHADOWSOCKS_PASSWORD",
reader.ForceLowercase(false))
return nil
}
func readShadowsocksAddress(r *reader.Reader) (address *string, err error) {
const currentKey = "SHADOWSOCKS_LISTENING_ADDRESS"
port, err := r.Uint16Ptr("SHADOWSOCKS_PORT", reader.IsRetro(currentKey)) // retro-compatibility
if err != nil {
return nil, err
} else if port != nil {
return ptrTo(fmt.Sprintf(":%d", *port)), nil
}
return r.Get(currentKey), nil
}