forked from lion-goose/proxypool
/
shadowsocks.go
162 lines (145 loc) · 4.04 KB
/
shadowsocks.go
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package proxy
import (
"encoding/json"
"errors"
"fmt"
"math/rand"
"net"
"net/url"
"regexp"
"strconv"
"strings"
"github.com/zu1k/proxypool/pkg/tool"
)
var (
ErrorNotSSLink = errors.New("not a correct ss link")
)
type Shadowsocks struct {
Base
Password string `yaml:"password" json:"password"`
Cipher string `yaml:"cipher" json:"cipher"`
Plugin string `yaml:"plugin,omitempty" json:"plugin,omitempty"`
PluginOpts map[string]interface{} `yaml:"plugin-opts,omitempty" json:"plugin-opts,omitempty"`
}
func (ss Shadowsocks) Identifier() string {
return net.JoinHostPort(ss.Server, strconv.Itoa(ss.Port)) + ss.Password
}
func (ss Shadowsocks) String() string {
data, err := json.Marshal(ss)
if err != nil {
return ""
}
return string(data)
}
func (ss Shadowsocks) ToClash() string {
data, err := json.Marshal(ss)
if err != nil {
return ""
}
return "- " + string(data)
}
func (ss Shadowsocks) ToSurge() string {
// node1 = ss, server, port, encrypt-method=, password=, obfs=, obfs-host=, udp-relay=false
if ss.Plugin == "obfs" {
text := fmt.Sprintf("%s = ss, %s, %d, encrypt-method=%s, password=%s, obfs=%s, udp-relay=false",
ss.Name, ss.Server, ss.Port, ss.Cipher, ss.Password, ss.PluginOpts["mode"])
if ss.PluginOpts["host"].(string) != "" {
text += ", obfs-host=" + ss.PluginOpts["host"].(string)
}
return text
} else {
return fmt.Sprintf("%s = ss, %s, %d, encrypt-method=%s, password=%s, udp-relay=false",
ss.Name, ss.Server, ss.Port, ss.Cipher, ss.Password)
}
}
func (ss Shadowsocks) Clone() Proxy {
return &ss
}
// https://shadowsocks.org/en/config/quick-guide.html
func (ss Shadowsocks) Link() (link string) {
payload := fmt.Sprintf("%s:%s@%s:%d", ss.Cipher, ss.Password, ss.Server, ss.Port)
payload = tool.Base64EncodeString(payload, false)
return fmt.Sprintf("ss://%s#%s", payload, ss.Name)
}
func ParseSSLink(link string) (*Shadowsocks, error) {
if !strings.HasPrefix(link, "ss://") {
return nil, ErrorNotSSRLink
}
uri, err := url.Parse(link)
if err != nil {
return nil, ErrorNotSSLink
}
cipher := ""
password := ""
if uri.User.String() == "" {
// base64的情况
infos, err := tool.Base64DecodeString(uri.Hostname())
if err != nil {
return nil, err
}
uri, err = url.Parse("ss://" + infos)
if err != nil {
return nil, err
}
cipher = uri.User.Username()
password, _ = uri.User.Password()
} else {
cipherInfoString, err := tool.Base64DecodeString(uri.User.Username())
if err != nil {
return nil, ErrorPasswordParseFail
}
cipherInfo := strings.SplitN(cipherInfoString, ":", 2)
if len(cipherInfo) < 2 {
return nil, ErrorPasswordParseFail
}
cipher = strings.ToLower(cipherInfo[0])
password = cipherInfo[1]
}
server := uri.Hostname()
port, _ := strconv.Atoi(uri.Port())
moreInfos := uri.Query()
pluginString := moreInfos.Get("plugin")
plugin := ""
pluginOpts := make(map[string]interface{})
if strings.Contains(pluginString, ";") {
pluginInfos, err := url.ParseQuery(pluginString)
if err == nil {
if strings.Contains(pluginString, "obfs") {
plugin = "obfs"
pluginOpts["mode"] = pluginInfos.Get("obfs")
pluginOpts["host"] = pluginInfos.Get("obfs-host")
} else if strings.Contains(pluginString, "v2ray") {
plugin = "v2ray-plugin"
pluginOpts["mode"] = pluginInfos.Get("mode")
pluginOpts["host"] = pluginInfos.Get("host")
pluginOpts["tls"] = strings.Contains(pluginString, "tls")
}
}
}
if port == 0 || cipher == "" {
return nil, ErrorNotSSLink
}
return &Shadowsocks{
Base: Base{
Name: strconv.Itoa(rand.Int()),
Server: server,
Port: port,
Type: "ss",
},
Password: password,
Cipher: cipher,
Plugin: plugin,
PluginOpts: pluginOpts,
}, nil
}
var (
ssPlainRe = regexp.MustCompile("ss://([A-Za-z0-9+/_&?=@:%.-])+")
)
func GrepSSLinkFromString(text string) []string {
results := make([]string, 0)
texts := strings.Split(text, "ss://")
for _, text := range texts {
results = append(results, ssPlainRe.FindAllString("ss://"+text, -1)...)
}
return results
}