From a54c39b4acd31e3190aeed2fdb89f8fb38f8f08e Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Mon, 31 Oct 2016 16:46:15 +0100
Subject: [PATCH] config for shadowsocks

---
 tools/conf/shadowsocks.go | 63 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/tools/conf/shadowsocks.go b/tools/conf/shadowsocks.go
index 1fff0fc4d..880c86775 100644
--- a/tools/conf/shadowsocks.go
+++ b/tools/conf/shadowsocks.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"strings"
 
+	"encoding/json"
 	"v2ray.com/core/common/loader"
 	"v2ray.com/core/common/protocol"
 	"v2ray.com/core/proxy/shadowsocks"
@@ -49,3 +50,65 @@ func (this *ShadowsocksServerConfig) Build() (*loader.TypedSettings, error) {
 
 	return loader.NewTypedSettings(config), nil
 }
+
+type ShadowsocksServerTarget struct {
+	Address  *Address `json:"address"`
+	Port     uint16   `json:"port"`
+	Cipher   string   `json:"method"`
+	Password string   `json:"password"`
+	Email    string   `json:"email"`
+}
+
+type ShadowsocksClientConfig struct {
+	Servers []*ShadowsocksServerTarget `json:"servers"`
+}
+
+func (this *ShadowsocksClientConfig) Build() (*loader.TypedSettings, error) {
+	config := new(shadowsocks.ClientConfig)
+
+	if len(this.Servers) == 0 {
+		return nil, errors.New("0 Shadowsocks server configured.")
+	}
+
+	serverSpecs := make([]*protocol.ServerEndpoint, len(this.Servers))
+	for idx, server := range this.Servers {
+		if server.Address == nil {
+			return nil, errors.New("Shadowsocks server address is not set.")
+		}
+		if server.Port == 0 {
+			return nil, errors.New("Invalid Shadowsocks port.")
+		}
+		if len(server.Password) == 0 {
+			return nil, errors.New("Shadowsocks password is not specified.")
+		}
+		account := &shadowsocks.Account{
+			Password: server.Password,
+		}
+		cipher := strings.ToLower(server.Cipher)
+		switch cipher {
+		case "aes-256-cfb":
+			account.CipherType = shadowsocks.CipherType_AES_256_CFB
+		case "aes-128-cfb":
+			account.CipherType = shadowsocks.CipherType_AES_128_CFB
+		case "chacha20":
+			account.CipherType = shadowsocks.CipherType_CHACHA20
+		case "chacha20-ietf":
+			account.CipherType = shadowsocks.CipherType_CHACHA20_IEFT
+		default:
+			return nil, errors.New("Unknown cipher method: " + cipher)
+		}
+
+		ss := &protocol.ServerEndpoint{
+			Address: server.Address.Build(),
+			Port:    uint32(server.Port),
+			User: []*protocol.User{
+				{
+					Email:   server.Email,
+					Account: loader.NewTypedSettings(account),
+				},
+			},
+		}
+	}
+
+	return loader.NewTypedSettings(config), nil
+}