Feature: add ssr support (#805)
* Refactor ssr stream cipher to expose iv and key References: https://github.com/Dreamacro/go-shadowsocks2 https://github.com/sh4d0wfiend/go-shadowsocksr2 * Implement ssr obfs Reference: https://github.com/mzz2017/shadowsocksR * Implement ssr protocol References: https://github.com/mzz2017/shadowsocksR https://github.com/shadowsocksRb/shadowsocksr-libev https://github.com/shadowsocksr-backup/shadowsocksr
This commit is contained in:
gVisor bot
parent
b91e339b61
commit
c1be3debfd
24 changed files with 2394 additions and 3 deletions
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@ -24,6 +24,13 @@ func ParseProxy(mapping map[string]interface{}) (C.Proxy, error) {
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break
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}
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proxy, err = NewShadowSocks(*ssOption)
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case "ssr":
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ssrOption := &ShadowSocksROption{}
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err = decoder.Decode(mapping, ssrOption)
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if err != nil {
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break
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}
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proxy, err = NewShadowSocksR(*ssrOption)
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case "socks5":
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socksOption := &Socks5Option{}
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err = decoder.Decode(mapping, socksOption)
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134
adapters/outbound/shadowsocksr.go
Normal file
134
adapters/outbound/shadowsocksr.go
Normal file
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@ -0,0 +1,134 @@
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package outbound
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import (
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"context"
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"encoding/json"
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"fmt"
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"net"
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"strconv"
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"github.com/Dreamacro/clash/component/dialer"
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"github.com/Dreamacro/clash/component/ssr/obfs"
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"github.com/Dreamacro/clash/component/ssr/protocol"
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C "github.com/Dreamacro/clash/constant"
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"github.com/Dreamacro/go-shadowsocks2/core"
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"github.com/Dreamacro/go-shadowsocks2/shadowstream"
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)
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type ShadowSocksR struct {
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*Base
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cipher *core.StreamCipher
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obfs obfs.Obfs
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protocol protocol.Protocol
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}
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type ShadowSocksROption struct {
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Name string `proxy:"name"`
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Server string `proxy:"server"`
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Port int `proxy:"port"`
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Password string `proxy:"password"`
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Cipher string `proxy:"cipher"`
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Obfs string `proxy:"obfs"`
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ObfsParam string `proxy:"obfs-param,omitempty"`
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Protocol string `proxy:"protocol"`
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ProtocolParam string `proxy:"protocol-param,omitempty"`
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UDP bool `proxy:"udp,omitempty"`
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}
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func (ssr *ShadowSocksR) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
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c = obfs.NewConn(c, ssr.obfs)
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c = ssr.cipher.StreamConn(c)
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conn, ok := c.(*shadowstream.Conn)
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if !ok {
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return nil, fmt.Errorf("invalid connection type")
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}
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iv, err := conn.ObtainWriteIV()
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if err != nil {
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return nil, err
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}
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c = protocol.NewConn(c, ssr.protocol, iv)
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_, err = c.Write(serializesSocksAddr(metadata))
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return c, err
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}
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func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
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c, err := dialer.DialContext(ctx, "tcp", ssr.addr)
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if err != nil {
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return nil, fmt.Errorf("%s connect error: %w", ssr.addr, err)
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}
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tcpKeepAlive(c)
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c, err = ssr.StreamConn(c, metadata)
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return NewConn(c, ssr), err
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}
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func (ssr *ShadowSocksR) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
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pc, err := dialer.ListenPacket("udp", "")
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if err != nil {
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return nil, err
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}
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addr, err := resolveUDPAddr("udp", ssr.addr)
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if err != nil {
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return nil, err
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}
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pc = ssr.cipher.PacketConn(pc)
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pc = protocol.NewPacketConn(pc, ssr.protocol)
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return newPacketConn(&ssPacketConn{PacketConn: pc, rAddr: addr}, ssr), nil
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}
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func (ssr *ShadowSocksR) MarshalJSON() ([]byte, error) {
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return json.Marshal(map[string]string{
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"type": ssr.Type().String(),
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})
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}
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func NewShadowSocksR(option ShadowSocksROption) (*ShadowSocksR, error) {
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addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
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cipher := option.Cipher
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password := option.Password
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coreCiph, err := core.PickCipher(cipher, nil, password)
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if err != nil {
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return nil, fmt.Errorf("ssr %s initialize cipher error: %w", addr, err)
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}
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ciph, ok := coreCiph.(*core.StreamCipher)
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if !ok {
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return nil, fmt.Errorf("%s is not a supported stream cipher in ssr", cipher)
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}
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obfs, err := obfs.PickObfs(option.Obfs, &obfs.Base{
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IVSize: ciph.IVSize(),
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Key: ciph.Key,
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HeadLen: 30,
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Host: option.Server,
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Port: option.Port,
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Param: option.ObfsParam,
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})
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if err != nil {
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return nil, fmt.Errorf("ssr %s initialize obfs error: %w", addr, err)
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}
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protocol, err := protocol.PickProtocol(option.Protocol, &protocol.Base{
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IV: nil,
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Key: ciph.Key,
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TCPMss: 1460,
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Param: option.ProtocolParam,
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})
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if err != nil {
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return nil, fmt.Errorf("ssr %s initialize protocol error: %w", addr, err)
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}
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protocol.SetOverhead(obfs.GetObfsOverhead() + protocol.GetProtocolOverhead())
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return &ShadowSocksR{
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Base: &Base{
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name: option.Name,
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addr: addr,
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tp: C.ShadowsocksR,
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udp: option.UDP,
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},
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cipher: ciph,
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obfs: obfs,
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protocol: protocol,
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}, nil
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}
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11
component/ssr/obfs/base.go
Normal file
11
component/ssr/obfs/base.go
Normal file
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@ -0,0 +1,11 @@
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package obfs
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// Base information for obfs
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type Base struct {
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IVSize int
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Key []byte
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HeadLen int
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Host string
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Port int
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Param string
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}
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9
component/ssr/obfs/http_post.go
Normal file
9
component/ssr/obfs/http_post.go
Normal file
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@ -0,0 +1,9 @@
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package obfs
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func init() {
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register("http_post", newHTTPPost)
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}
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func newHTTPPost(b *Base) Obfs {
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return &httpObfs{Base: b, post: true}
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}
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402
component/ssr/obfs/http_simple.go
Normal file
402
component/ssr/obfs/http_simple.go
Normal file
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@ -0,0 +1,402 @@
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package obfs
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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"io"
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"math/rand"
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"strings"
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)
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type httpObfs struct {
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*Base
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firstRequest bool
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firstResponse bool
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post bool
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}
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func init() {
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register("http_simple", newHTTPSimple)
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}
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func newHTTPSimple(b *Base) Obfs {
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return &httpObfs{Base: b}
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}
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func (h *httpObfs) initForConn() Obfs {
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return &httpObfs{
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Base: h.Base,
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firstRequest: true,
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firstResponse: true,
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post: h.post,
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}
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}
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func (h *httpObfs) GetObfsOverhead() int {
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return 0
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}
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func (h *httpObfs) Decode(b []byte) ([]byte, bool, error) {
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if h.firstResponse {
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idx := bytes.Index(b, []byte("\r\n\r\n"))
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if idx == -1 {
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return nil, false, io.EOF
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}
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h.firstResponse = false
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return b[idx+4:], false, nil
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}
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return b, false, nil
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}
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func (h *httpObfs) Encode(b []byte) ([]byte, error) {
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if h.firstRequest {
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bSize := len(b)
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var headData []byte
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if headSize := h.IVSize + h.HeadLen; bSize-headSize > 64 {
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headData = make([]byte, headSize+rand.Intn(64))
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} else {
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headData = make([]byte, bSize)
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}
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copy(headData, b[:len(headData)])
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host := h.Host
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var customHead string
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if len(h.Param) > 0 {
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customHeads := strings.Split(h.Param, "#")
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if len(customHeads) > 2 {
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customHeads = customHeads[:2]
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}
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customHosts := h.Param
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if len(customHeads) > 1 {
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customHosts = customHeads[0]
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customHead = customHeads[1]
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}
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hosts := strings.Split(customHosts, ",")
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if len(hosts) > 0 {
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host = strings.TrimSpace(hosts[rand.Intn(len(hosts))])
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}
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}
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method := "GET /"
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if h.post {
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method = "POST /"
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}
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requestPathIndex := rand.Intn(len(requestPath)/2) * 2
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httpBuf := fmt.Sprintf("%s%s%s%s HTTP/1.1\r\nHost: %s:%d\r\n",
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method,
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requestPath[requestPathIndex],
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data2URLEncode(headData),
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requestPath[requestPathIndex+1],
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host, h.Port)
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if len(customHead) > 0 {
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httpBuf = httpBuf + strings.Replace(customHead, "\\n", "\r\n", -1) + "\r\n\r\n"
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} else {
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var contentType string
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if h.post {
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contentType = "Content-Type: multipart/form-data; boundary=" + boundary() + "\r\n"
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}
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httpBuf = httpBuf + "User-agent: " + requestUserAgent[rand.Intn(len(requestUserAgent))] + "\r\n" +
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"Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n" +
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"Accept-Language: en-US,en;q=0.8\r\n" +
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"Accept-Encoding: gzip, deflate\r\n" +
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contentType +
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"DNT: 1\r\n" +
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"Connection: keep-alive\r\n" +
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"\r\n"
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}
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var encoded []byte
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if len(headData) < bSize {
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encoded = make([]byte, len(httpBuf)+(bSize-len(headData)))
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copy(encoded, []byte(httpBuf))
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copy(encoded[len(httpBuf):], b[len(headData):])
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} else {
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encoded = []byte(httpBuf)
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}
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h.firstRequest = false
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return encoded, nil
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}
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return b, nil
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}
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func data2URLEncode(data []byte) (ret string) {
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for i := 0; i < len(data); i++ {
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ret = fmt.Sprintf("%s%%%s", ret, hex.EncodeToString([]byte{data[i]}))
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}
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return
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}
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func boundary() (ret string) {
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set := "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
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for i := 0; i < 32; i++ {
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ret = fmt.Sprintf("%s%c", ret, set[rand.Intn(len(set))])
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}
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return
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}
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var (
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requestPath = []string{
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"", "",
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"login.php?redir=", "",
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"register.php?code=", "",
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"?keyword=", "",
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"search?src=typd&q=", "&lang=en",
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"s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&ch=&bar=&wd=", "&rn=",
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"post.php?id=", "&goto=view.php",
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}
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requestUserAgent = []string{
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.162 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.85 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 7.0; Moto C Build/NRD90M.059) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532M Build/MMB29T; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.111 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 5.1.1; SM-J120M Build/LMY47X) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 7.0; Moto G (5) Build/NPPS25.137-93-14) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 7.0; SM-G570M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 5.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36",
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"Mozilla/5.0 (Linux; Android 6.0; CAM-L03 Build/HUAWEICAM-L03) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.76 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36",
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"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3",
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"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36",
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"Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.7 (KHTML, like Gecko) Chrome/7.0.517.44 Safari/534.7",
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"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36",
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"Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.3 (KHTML, like Gecko) Chrome/6.0.472.63 Safari/534.3",
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"Mozilla/5.0 (Linux; Android 8.0.0; FIG-LX3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.80 Mobile Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/40.0.2214.115 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36",
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"Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.237 Safari/534.10",
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"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
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"Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/533.2 (KHTML, like Gecko) Chrome/5.0.342.1 Safari/533.2",
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"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
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"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.110 Safari/537.36",
|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.79 Safari/537.36",
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
"Mozilla/5.0 (Windows; U; Windows NT 6.1; de-DE) AppleWebKit/534.17 (KHTML, like Gecko) Chrome/10.0.649.0 Safari/534.17",
|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36",
|
||||
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||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.99 Safari/533.4",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.125 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.111 Safari/537.36 MVisionPlayer/1.0.0.0",
|
||||
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 5.1; A37f Build/LMY47V) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.93 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.76 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0.1; CPH1607 Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36",
|
||||
"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0.1; vivo 1603 Build/MMB29M) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.83 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532M Build/MMB29T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0.1; Redmi 4A Build/MMB29M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.116 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
|
||||
"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.71 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 5.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.2; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.90 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.181 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.106 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0.1; SM-G532G Build/MMB29T) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.83 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.109 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.139 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/34.0.1847.131 Safari/537.36",
|
||||
"Mozilla/5.0 (Linux; Android 6.0; vivo 1713 Build/MRA58K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.124 Mobile Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.89 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.80 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.101 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.67 Safari/537.36",
|
||||
"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
|
||||
}
|
||||
)
|
||||
37
component/ssr/obfs/obfs.go
Normal file
37
component/ssr/obfs/obfs.go
Normal file
|
|
@ -0,0 +1,37 @@
|
|||
package obfs
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var (
|
||||
errTLS12TicketAuthIncorrectMagicNumber = errors.New("tls1.2_ticket_auth incorrect magic number")
|
||||
errTLS12TicketAuthTooShortData = errors.New("tls1.2_ticket_auth too short data")
|
||||
errTLS12TicketAuthHMACError = errors.New("tls1.2_ticket_auth hmac verifying failed")
|
||||
)
|
||||
|
||||
// Obfs provides methods for decoding and encoding
|
||||
type Obfs interface {
|
||||
initForConn() Obfs
|
||||
GetObfsOverhead() int
|
||||
Decode(b []byte) ([]byte, bool, error)
|
||||
Encode(b []byte) ([]byte, error)
|
||||
}
|
||||
|
||||
type obfsCreator func(b *Base) Obfs
|
||||
|
||||
var obfsList = make(map[string]obfsCreator)
|
||||
|
||||
func register(name string, c obfsCreator) {
|
||||
obfsList[name] = c
|
||||
}
|
||||
|
||||
// PickObfs returns an obfs of the given name
|
||||
func PickObfs(name string, b *Base) (Obfs, error) {
|
||||
if obfsCreator, ok := obfsList[strings.ToLower(name)]; ok {
|
||||
return obfsCreator(b), nil
|
||||
}
|
||||
return nil, fmt.Errorf("Obfs %s not supported", name)
|
||||
}
|
||||
25
component/ssr/obfs/plain.go
Normal file
25
component/ssr/obfs/plain.go
Normal file
|
|
@ -0,0 +1,25 @@
|
|||
package obfs
|
||||
|
||||
type plain struct{}
|
||||
|
||||
func init() {
|
||||
register("plain", newPlain)
|
||||
}
|
||||
|
||||
func newPlain(b *Base) Obfs {
|
||||
return &plain{}
|
||||
}
|
||||
|
||||
func (p *plain) initForConn() Obfs { return &plain{} }
|
||||
|
||||
func (p *plain) GetObfsOverhead() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (p *plain) Encode(b []byte) ([]byte, error) {
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (p *plain) Decode(b []byte) ([]byte, bool, error) {
|
||||
return b, false, nil
|
||||
}
|
||||
75
component/ssr/obfs/random_head.go
Normal file
75
component/ssr/obfs/random_head.go
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
package obfs
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"hash/crc32"
|
||||
"math/rand"
|
||||
)
|
||||
|
||||
type randomHead struct {
|
||||
*Base
|
||||
firstRequest bool
|
||||
firstResponse bool
|
||||
headerSent bool
|
||||
buffer []byte
|
||||
}
|
||||
|
||||
func init() {
|
||||
register("random_head", newRandomHead)
|
||||
}
|
||||
|
||||
func newRandomHead(b *Base) Obfs {
|
||||
return &randomHead{Base: b}
|
||||
}
|
||||
|
||||
func (r *randomHead) initForConn() Obfs {
|
||||
return &randomHead{
|
||||
Base: r.Base,
|
||||
firstRequest: true,
|
||||
firstResponse: true,
|
||||
}
|
||||
}
|
||||
|
||||
func (r *randomHead) GetObfsOverhead() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (r *randomHead) Encode(b []byte) (encoded []byte, err error) {
|
||||
if !r.firstRequest {
|
||||
return b, nil
|
||||
}
|
||||
|
||||
bSize := len(b)
|
||||
if r.headerSent {
|
||||
if bSize > 0 {
|
||||
d := make([]byte, len(r.buffer)+bSize)
|
||||
copy(d, r.buffer)
|
||||
copy(d[len(r.buffer):], b)
|
||||
r.buffer = d
|
||||
} else {
|
||||
encoded = r.buffer
|
||||
r.buffer = nil
|
||||
r.firstRequest = false
|
||||
}
|
||||
} else {
|
||||
size := rand.Intn(96) + 8
|
||||
encoded = make([]byte, size)
|
||||
rand.Read(encoded)
|
||||
crc := (0xFFFFFFFF - crc32.ChecksumIEEE(encoded[:size-4])) & 0xFFFFFFFF
|
||||
binary.LittleEndian.PutUint32(encoded[size-4:], crc)
|
||||
|
||||
d := make([]byte, bSize)
|
||||
copy(d, b)
|
||||
r.buffer = d
|
||||
}
|
||||
r.headerSent = true
|
||||
return encoded, nil
|
||||
}
|
||||
|
||||
func (r *randomHead) Decode(b []byte) ([]byte, bool, error) {
|
||||
if r.firstResponse {
|
||||
r.firstResponse = false
|
||||
return b, true, nil
|
||||
}
|
||||
return b, false, nil
|
||||
}
|
||||
72
component/ssr/obfs/stream.go
Normal file
72
component/ssr/obfs/stream.go
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
package obfs
|
||||
|
||||
import (
|
||||
"net"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
)
|
||||
|
||||
// NewConn wraps a stream-oriented net.Conn with obfs decoding/encoding
|
||||
func NewConn(c net.Conn, o Obfs) net.Conn {
|
||||
return &Conn{Conn: c, Obfs: o.initForConn()}
|
||||
}
|
||||
|
||||
// Conn represents an obfs connection
|
||||
type Conn struct {
|
||||
net.Conn
|
||||
Obfs
|
||||
buf []byte
|
||||
offset int
|
||||
}
|
||||
|
||||
func (c *Conn) Read(b []byte) (int, error) {
|
||||
if c.buf != nil {
|
||||
n := copy(b, c.buf[c.offset:])
|
||||
c.offset += n
|
||||
if c.offset == len(c.buf) {
|
||||
pool.Put(c.buf)
|
||||
c.buf = nil
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
|
||||
buf := pool.Get(pool.RelayBufferSize)
|
||||
defer pool.Put(buf)
|
||||
n, err := c.Conn.Read(buf)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
decoded, sendback, err := c.Decode(buf[:n])
|
||||
// decoded may be part of buf
|
||||
decodedData := pool.Get(len(decoded))
|
||||
copy(decodedData, decoded)
|
||||
if err != nil {
|
||||
pool.Put(decodedData)
|
||||
return 0, err
|
||||
}
|
||||
if sendback {
|
||||
c.Write(nil)
|
||||
pool.Put(decodedData)
|
||||
return 0, nil
|
||||
}
|
||||
n = copy(b, decodedData)
|
||||
if len(decodedData) > len(b) {
|
||||
c.buf = decodedData
|
||||
c.offset = n
|
||||
} else {
|
||||
pool.Put(decodedData)
|
||||
}
|
||||
return n, err
|
||||
}
|
||||
|
||||
func (c *Conn) Write(b []byte) (int, error) {
|
||||
encoded, err := c.Encode(b)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
_, err = c.Conn.Write(encoded)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return len(b), nil
|
||||
}
|
||||
291
component/ssr/obfs/tls12_ticket_auth.go
Normal file
291
component/ssr/obfs/tls12_ticket_auth.go
Normal file
|
|
@ -0,0 +1,291 @@
|
|||
package obfs
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/hmac"
|
||||
"encoding/binary"
|
||||
"fmt"
|
||||
"io"
|
||||
"log"
|
||||
"math/rand"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
)
|
||||
|
||||
type tlsAuthData struct {
|
||||
localClientID [32]byte
|
||||
}
|
||||
|
||||
type tls12Ticket struct {
|
||||
*Base
|
||||
*tlsAuthData
|
||||
handshakeStatus int
|
||||
sendSaver bytes.Buffer
|
||||
recvBuffer bytes.Buffer
|
||||
buffer bytes.Buffer
|
||||
}
|
||||
|
||||
func init() {
|
||||
register("tls1.2_ticket_auth", newTLS12Ticket)
|
||||
register("tls1.2_ticket_fastauth", newTLS12Ticket)
|
||||
}
|
||||
|
||||
func newTLS12Ticket(b *Base) Obfs {
|
||||
return &tls12Ticket{
|
||||
Base: b,
|
||||
}
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) initForConn() Obfs {
|
||||
r := &tls12Ticket{
|
||||
Base: t.Base,
|
||||
tlsAuthData: &tlsAuthData{},
|
||||
}
|
||||
rand.Read(r.localClientID[:])
|
||||
return r
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) GetObfsOverhead() int {
|
||||
return 5
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) Decode(b []byte) ([]byte, bool, error) {
|
||||
if t.handshakeStatus == -1 {
|
||||
return b, false, nil
|
||||
}
|
||||
t.buffer.Reset()
|
||||
if t.handshakeStatus == 8 {
|
||||
t.recvBuffer.Write(b)
|
||||
for t.recvBuffer.Len() > 5 {
|
||||
var h [5]byte
|
||||
t.recvBuffer.Read(h[:])
|
||||
if !bytes.Equal(h[:3], []byte{0x17, 0x3, 0x3}) {
|
||||
log.Println("incorrect magic number", h[:3], ", 0x170303 is expected")
|
||||
return nil, false, errTLS12TicketAuthIncorrectMagicNumber
|
||||
}
|
||||
size := int(binary.BigEndian.Uint16(h[3:5]))
|
||||
if t.recvBuffer.Len() < size {
|
||||
// 不够读，下回再读吧
|
||||
unread := t.recvBuffer.Bytes()
|
||||
t.recvBuffer.Reset()
|
||||
t.recvBuffer.Write(h[:])
|
||||
t.recvBuffer.Write(unread)
|
||||
break
|
||||
}
|
||||
d := pool.Get(size)
|
||||
t.recvBuffer.Read(d)
|
||||
t.buffer.Write(d)
|
||||
pool.Put(d)
|
||||
}
|
||||
return t.buffer.Bytes(), false, nil
|
||||
}
|
||||
|
||||
if len(b) < 11+32+1+32 {
|
||||
return nil, false, errTLS12TicketAuthTooShortData
|
||||
}
|
||||
|
||||
hash := t.hmacSHA1(b[11 : 11+22])
|
||||
|
||||
if !hmac.Equal(b[33:33+tools.HmacSHA1Len], hash) {
|
||||
return nil, false, errTLS12TicketAuthHMACError
|
||||
}
|
||||
return nil, true, nil
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) Encode(b []byte) ([]byte, error) {
|
||||
t.buffer.Reset()
|
||||
switch t.handshakeStatus {
|
||||
case 8:
|
||||
if len(b) < 1024 {
|
||||
d := []byte{0x17, 0x3, 0x3, 0, 0}
|
||||
binary.BigEndian.PutUint16(d[3:5], uint16(len(b)&0xFFFF))
|
||||
t.buffer.Write(d)
|
||||
t.buffer.Write(b)
|
||||
return t.buffer.Bytes(), nil
|
||||
}
|
||||
start := 0
|
||||
var l int
|
||||
for len(b)-start > 2048 {
|
||||
l = rand.Intn(4096) + 100
|
||||
if l > len(b)-start {
|
||||
l = len(b) - start
|
||||
}
|
||||
packData(&t.buffer, b[start:start+l])
|
||||
start += l
|
||||
}
|
||||
if len(b)-start > 0 {
|
||||
l = len(b) - start
|
||||
packData(&t.buffer, b[start:start+l])
|
||||
}
|
||||
return t.buffer.Bytes(), nil
|
||||
case 1:
|
||||
if len(b) > 0 {
|
||||
if len(b) < 1024 {
|
||||
packData(&t.sendSaver, b)
|
||||
} else {
|
||||
start := 0
|
||||
var l int
|
||||
for len(b)-start > 2048 {
|
||||
l = rand.Intn(4096) + 100
|
||||
if l > len(b)-start {
|
||||
l = len(b) - start
|
||||
}
|
||||
packData(&t.buffer, b[start:start+l])
|
||||
start += l
|
||||
}
|
||||
if len(b)-start > 0 {
|
||||
l = len(b) - start
|
||||
packData(&t.buffer, b[start:start+l])
|
||||
}
|
||||
io.Copy(&t.sendSaver, &t.buffer)
|
||||
}
|
||||
return []byte{}, nil
|
||||
}
|
||||
hmacData := make([]byte, 43)
|
||||
handshakeFinish := []byte("\x14\x03\x03\x00\x01\x01\x16\x03\x03\x00\x20")
|
||||
copy(hmacData, handshakeFinish)
|
||||
rand.Read(hmacData[11:33])
|
||||
h := t.hmacSHA1(hmacData[:33])
|
||||
copy(hmacData[33:], h)
|
||||
t.buffer.Write(hmacData)
|
||||
io.Copy(&t.buffer, &t.sendSaver)
|
||||
t.handshakeStatus = 8
|
||||
return t.buffer.Bytes(), nil
|
||||
case 0:
|
||||
tlsData0 := []byte("\x00\x1c\xc0\x2b\xc0\x2f\xcc\xa9\xcc\xa8\xcc\x14\xcc\x13\xc0\x0a\xc0\x14\xc0\x09\xc0\x13\x00\x9c\x00\x35\x00\x2f\x00\x0a\x01\x00")
|
||||
tlsData1 := []byte("\xff\x01\x00\x01\x00")
|
||||
tlsData2 := []byte("\x00\x17\x00\x00\x00\x23\x00\xd0")
|
||||
// tlsData3 := []byte("\x00\x0d\x00\x16\x00\x14\x06\x01\x06\x03\x05\x01\x05\x03\x04\x01\x04\x03\x03\x01\x03\x03\x02\x01\x02\x03\x00\x05\x00\x05\x01\x00\x00\x00\x00\x00\x12\x00\x00\x75\x50\x00\x00\x00\x0b\x00\x02\x01\x00\x00\x0a\x00\x06\x00\x04\x00\x17\x00\x18\x00\x15\x00\x66\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
|
||||
tlsData3 := []byte("\x00\x0d\x00\x16\x00\x14\x06\x01\x06\x03\x05\x01\x05\x03\x04\x01\x04\x03\x03\x01\x03\x03\x02\x01\x02\x03\x00\x05\x00\x05\x01\x00\x00\x00\x00\x00\x12\x00\x00\x75\x50\x00\x00\x00\x0b\x00\x02\x01\x00\x00\x0a\x00\x06\x00\x04\x00\x17\x00\x18")
|
||||
|
||||
var tlsData [2048]byte
|
||||
tlsDataLen := 0
|
||||
copy(tlsData[0:], tlsData1)
|
||||
tlsDataLen += len(tlsData1)
|
||||
sni := t.sni(t.getHost())
|
||||
copy(tlsData[tlsDataLen:], sni)
|
||||
tlsDataLen += len(sni)
|
||||
copy(tlsData[tlsDataLen:], tlsData2)
|
||||
tlsDataLen += len(tlsData2)
|
||||
ticketLen := rand.Intn(164)*2 + 64
|
||||
tlsData[tlsDataLen-1] = uint8(ticketLen & 0xff)
|
||||
tlsData[tlsDataLen-2] = uint8(ticketLen >> 8)
|
||||
//ticketLen := 208
|
||||
rand.Read(tlsData[tlsDataLen : tlsDataLen+ticketLen])
|
||||
tlsDataLen += ticketLen
|
||||
copy(tlsData[tlsDataLen:], tlsData3)
|
||||
tlsDataLen += len(tlsData3)
|
||||
|
||||
length := 11 + 32 + 1 + 32 + len(tlsData0) + 2 + tlsDataLen
|
||||
encodedData := make([]byte, length)
|
||||
pdata := length - tlsDataLen
|
||||
l := tlsDataLen
|
||||
copy(encodedData[pdata:], tlsData[:tlsDataLen])
|
||||
encodedData[pdata-1] = uint8(tlsDataLen)
|
||||
encodedData[pdata-2] = uint8(tlsDataLen >> 8)
|
||||
pdata -= 2
|
||||
l += 2
|
||||
copy(encodedData[pdata-len(tlsData0):], tlsData0)
|
||||
pdata -= len(tlsData0)
|
||||
l += len(tlsData0)
|
||||
copy(encodedData[pdata-32:], t.localClientID[:])
|
||||
pdata -= 32
|
||||
l += 32
|
||||
encodedData[pdata-1] = 0x20
|
||||
pdata--
|
||||
l++
|
||||
copy(encodedData[pdata-32:], t.packAuthData())
|
||||
pdata -= 32
|
||||
l += 32
|
||||
encodedData[pdata-1] = 0x3
|
||||
encodedData[pdata-2] = 0x3 // tls version
|
||||
pdata -= 2
|
||||
l += 2
|
||||
encodedData[pdata-1] = uint8(l)
|
||||
encodedData[pdata-2] = uint8(l >> 8)
|
||||
encodedData[pdata-3] = 0
|
||||
encodedData[pdata-4] = 1
|
||||
pdata -= 4
|
||||
l += 4
|
||||
encodedData[pdata-1] = uint8(l)
|
||||
encodedData[pdata-2] = uint8(l >> 8)
|
||||
pdata -= 2
|
||||
l += 2
|
||||
encodedData[pdata-1] = 0x1
|
||||
encodedData[pdata-2] = 0x3 // tls version
|
||||
pdata -= 2
|
||||
l += 2
|
||||
encodedData[pdata-1] = 0x16 // tls handshake
|
||||
pdata--
|
||||
l++
|
||||
packData(&t.sendSaver, b)
|
||||
t.handshakeStatus = 1
|
||||
return encodedData, nil
|
||||
default:
|
||||
return nil, fmt.Errorf("unexpected handshake status: %d", t.handshakeStatus)
|
||||
}
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) hmacSHA1(data []byte) []byte {
|
||||
key := make([]byte, len(t.Key)+32)
|
||||
copy(key, t.Key)
|
||||
copy(key[len(t.Key):], t.localClientID[:])
|
||||
|
||||
sha1Data := tools.HmacSHA1(key, data)
|
||||
return sha1Data[:tools.HmacSHA1Len]
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) sni(u string) []byte {
|
||||
bURL := []byte(u)
|
||||
length := len(bURL)
|
||||
ret := make([]byte, length+9)
|
||||
copy(ret[9:9+length], bURL)
|
||||
binary.BigEndian.PutUint16(ret[7:], uint16(length&0xFFFF))
|
||||
length += 3
|
||||
binary.BigEndian.PutUint16(ret[4:], uint16(length&0xFFFF))
|
||||
length += 2
|
||||
binary.BigEndian.PutUint16(ret[2:], uint16(length&0xFFFF))
|
||||
return ret
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) getHost() string {
|
||||
host := t.Host
|
||||
if len(t.Param) > 0 {
|
||||
hosts := strings.Split(t.Param, ",")
|
||||
if len(hosts) > 0 {
|
||||
|
||||
host = hosts[rand.Intn(len(hosts))]
|
||||
host = strings.TrimSpace(host)
|
||||
}
|
||||
}
|
||||
if len(host) > 0 && host[len(host)-1] >= byte('0') && host[len(host)-1] <= byte('9') && len(t.Param) == 0 {
|
||||
host = ""
|
||||
}
|
||||
return host
|
||||
}
|
||||
|
||||
func (t *tls12Ticket) packAuthData() (ret []byte) {
|
||||
retSize := 32
|
||||
ret = make([]byte, retSize)
|
||||
|
||||
now := time.Now().Unix()
|
||||
binary.BigEndian.PutUint32(ret[:4], uint32(now))
|
||||
|
||||
rand.Read(ret[4 : 4+18])
|
||||
|
||||
hash := t.hmacSHA1(ret[:retSize-tools.HmacSHA1Len])
|
||||
copy(ret[retSize-tools.HmacSHA1Len:], hash)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func packData(buffer *bytes.Buffer, suffix []byte) {
|
||||
d := []byte{0x17, 0x3, 0x3, 0, 0}
|
||||
binary.BigEndian.PutUint16(d[3:5], uint16(len(suffix)&0xFFFF))
|
||||
buffer.Write(d)
|
||||
buffer.Write(suffix)
|
||||
return
|
||||
}
|
||||
300
component/ssr/protocol/auth_aes128_md5.go
Normal file
300
component/ssr/protocol/auth_aes128_md5.go
Normal file
|
|
@ -0,0 +1,300 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/aes"
|
||||
"crypto/cipher"
|
||||
"encoding/base64"
|
||||
"encoding/binary"
|
||||
"math/rand"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
"github.com/Dreamacro/go-shadowsocks2/core"
|
||||
)
|
||||
|
||||
type authAES128 struct {
|
||||
*Base
|
||||
*recvInfo
|
||||
*authData
|
||||
hasSentHeader bool
|
||||
packID uint32
|
||||
userKey []byte
|
||||
uid [4]byte
|
||||
salt string
|
||||
hmac hmacMethod
|
||||
hashDigest hashDigestMethod
|
||||
}
|
||||
|
||||
func init() {
|
||||
register("auth_aes128_md5", newAuthAES128MD5)
|
||||
}
|
||||
|
||||
func newAuthAES128MD5(b *Base) Protocol {
|
||||
return &authAES128{
|
||||
Base: b,
|
||||
authData: &authData{},
|
||||
salt: "auth_aes128_md5",
|
||||
hmac: tools.HmacMD5,
|
||||
hashDigest: tools.MD5Sum,
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authAES128) initForConn(iv []byte) Protocol {
|
||||
return &authAES128{
|
||||
Base: &Base{
|
||||
IV: iv,
|
||||
Key: a.Key,
|
||||
TCPMss: a.TCPMss,
|
||||
Overhead: a.Overhead,
|
||||
Param: a.Param,
|
||||
},
|
||||
recvInfo: &recvInfo{recvID: 1, buffer: new(bytes.Buffer)},
|
||||
authData: a.authData,
|
||||
packID: 1,
|
||||
salt: a.salt,
|
||||
hmac: a.hmac,
|
||||
hashDigest: a.hashDigest,
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authAES128) GetProtocolOverhead() int {
|
||||
return 9
|
||||
}
|
||||
|
||||
func (a *authAES128) SetOverhead(overhead int) {
|
||||
a.Overhead = overhead
|
||||
}
|
||||
|
||||
func (a *authAES128) Decode(b []byte) ([]byte, int, error) {
|
||||
a.buffer.Reset()
|
||||
bSize := len(b)
|
||||
readSize := 0
|
||||
key := pool.Get(len(a.userKey) + 4)
|
||||
defer pool.Put(key)
|
||||
copy(key, a.userKey)
|
||||
for bSize > 4 {
|
||||
binary.LittleEndian.PutUint32(key[len(key)-4:], a.recvID)
|
||||
|
||||
h := a.hmac(key, b[:2])
|
||||
if !bytes.Equal(h[:2], b[2:4]) {
|
||||
return nil, 0, errAuthAES128HMACError
|
||||
}
|
||||
length := int(binary.LittleEndian.Uint16(b[:2]))
|
||||
if length >= 8192 || length < 8 {
|
||||
return nil, 0, errAuthAES128DataLengthError
|
||||
}
|
||||
if length > bSize {
|
||||
break
|
||||
}
|
||||
a.recvID++
|
||||
pos := int(b[4])
|
||||
if pos < 255 {
|
||||
pos += 4
|
||||
} else {
|
||||
pos = int(binary.LittleEndian.Uint16(b[5:7])) + 4
|
||||
}
|
||||
|
||||
a.buffer.Write(b[pos : length-4])
|
||||
b = b[length:]
|
||||
bSize -= length
|
||||
readSize += length
|
||||
}
|
||||
return a.buffer.Bytes(), readSize, nil
|
||||
}
|
||||
|
||||
func (a *authAES128) Encode(b []byte) ([]byte, error) {
|
||||
a.buffer.Reset()
|
||||
bSize := len(b)
|
||||
offset := 0
|
||||
if bSize > 0 && !a.hasSentHeader {
|
||||
authSize := bSize
|
||||
if authSize > 1200 {
|
||||
authSize = 1200
|
||||
}
|
||||
a.hasSentHeader = true
|
||||
a.buffer.Write(a.packAuthData(b[:authSize]))
|
||||
bSize -= authSize
|
||||
offset += authSize
|
||||
}
|
||||
const blockSize = 4096
|
||||
for bSize > blockSize {
|
||||
packSize, randSize := a.packedDataSize(b[offset : offset+blockSize])
|
||||
pack := pool.Get(packSize)
|
||||
a.packData(b[offset:offset+blockSize], pack, randSize)
|
||||
a.buffer.Write(pack)
|
||||
pool.Put(pack)
|
||||
bSize -= blockSize
|
||||
offset += blockSize
|
||||
}
|
||||
if bSize > 0 {
|
||||
packSize, randSize := a.packedDataSize(b[offset:])
|
||||
pack := pool.Get(packSize)
|
||||
a.packData(b[offset:], pack, randSize)
|
||||
a.buffer.Write(pack)
|
||||
pool.Put(pack)
|
||||
}
|
||||
return a.buffer.Bytes(), nil
|
||||
}
|
||||
|
||||
func (a *authAES128) DecodePacket(b []byte) ([]byte, int, error) {
|
||||
bSize := len(b)
|
||||
h := a.hmac(a.Key, b[:bSize-4])
|
||||
if !bytes.Equal(h[:4], b[bSize-4:]) {
|
||||
return nil, 0, errAuthAES128HMACError
|
||||
}
|
||||
return b[:bSize-4], bSize - 4, nil
|
||||
}
|
||||
|
||||
func (a *authAES128) EncodePacket(b []byte) ([]byte, error) {
|
||||
a.initUserKeyAndID()
|
||||
|
||||
var buf bytes.Buffer
|
||||
buf.Write(b)
|
||||
buf.Write(a.uid[:])
|
||||
h := a.hmac(a.userKey, buf.Bytes())
|
||||
buf.Write(h[:4])
|
||||
return buf.Bytes(), nil
|
||||
}
|
||||
|
||||
func (a *authAES128) initUserKeyAndID() {
|
||||
if a.userKey == nil {
|
||||
params := strings.Split(a.Param, ":")
|
||||
if len(params) >= 2 {
|
||||
if userID, err := strconv.ParseUint(params[0], 10, 32); err == nil {
|
||||
binary.LittleEndian.PutUint32(a.uid[:], uint32(userID))
|
||||
a.userKey = a.hashDigest([]byte(params[1]))
|
||||
}
|
||||
}
|
||||
|
||||
if a.userKey == nil {
|
||||
rand.Read(a.uid[:])
|
||||
a.userKey = make([]byte, len(a.Key))
|
||||
copy(a.userKey, a.Key)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authAES128) packedDataSize(data []byte) (packSize, randSize int) {
|
||||
dataSize := len(data)
|
||||
randSize = 1
|
||||
if dataSize <= 1200 {
|
||||
if a.packID > 4 {
|
||||
randSize += rand.Intn(32)
|
||||
} else {
|
||||
if dataSize > 900 {
|
||||
randSize += rand.Intn(128)
|
||||
} else {
|
||||
randSize += rand.Intn(512)
|
||||
}
|
||||
}
|
||||
}
|
||||
packSize = randSize + dataSize + 8
|
||||
return
|
||||
}
|
||||
|
||||
func (a *authAES128) packData(data, ret []byte, randSize int) {
|
||||
dataSize := len(data)
|
||||
retSize := len(ret)
|
||||
// 0~1, ret_size
|
||||
binary.LittleEndian.PutUint16(ret[0:], uint16(retSize&0xFFFF))
|
||||
// 2~3, hmac
|
||||
key := pool.Get(len(a.userKey) + 4)
|
||||
defer pool.Put(key)
|
||||
copy(key, a.userKey)
|
||||
binary.LittleEndian.PutUint32(key[len(key)-4:], a.packID)
|
||||
h := a.hmac(key, ret[:2])
|
||||
copy(ret[2:4], h[:2])
|
||||
// 4~rand_size+4, rand number
|
||||
rand.Read(ret[4 : 4+randSize])
|
||||
// 4, rand_size
|
||||
if randSize < 128 {
|
||||
ret[4] = byte(randSize & 0xFF)
|
||||
} else {
|
||||
// 4, magic number 0xFF
|
||||
ret[4] = 0xFF
|
||||
// 5~6, rand_size
|
||||
binary.LittleEndian.PutUint16(ret[5:], uint16(randSize&0xFFFF))
|
||||
}
|
||||
// rand_size+4~ret_size-4, data
|
||||
if dataSize > 0 {
|
||||
copy(ret[randSize+4:], data)
|
||||
}
|
||||
a.packID++
|
||||
h = a.hmac(key, ret[:retSize-4])
|
||||
copy(ret[retSize-4:], h[:4])
|
||||
}
|
||||
|
||||
func (a *authAES128) packAuthData(data []byte) (ret []byte) {
|
||||
dataSize := len(data)
|
||||
var randSize int
|
||||
|
||||
if dataSize > 400 {
|
||||
randSize = rand.Intn(512)
|
||||
} else {
|
||||
randSize = rand.Intn(1024)
|
||||
}
|
||||
|
||||
dataOffset := randSize + 16 + 4 + 4 + 7
|
||||
retSize := dataOffset + dataSize + 4
|
||||
ret = make([]byte, retSize)
|
||||
encrypt := make([]byte, 24)
|
||||
key := make([]byte, len(a.IV)+len(a.Key))
|
||||
copy(key, a.IV)
|
||||
copy(key[len(a.IV):], a.Key)
|
||||
|
||||
rand.Read(ret[dataOffset-randSize:])
|
||||
a.mutex.Lock()
|
||||
defer a.mutex.Unlock()
|
||||
a.connectionID++
|
||||
if a.connectionID > 0xFF000000 {
|
||||
a.clientID = nil
|
||||
}
|
||||
if len(a.clientID) == 0 {
|
||||
a.clientID = make([]byte, 8)
|
||||
rand.Read(a.clientID)
|
||||
b := make([]byte, 4)
|
||||
rand.Read(b)
|
||||
a.connectionID = binary.LittleEndian.Uint32(b) & 0xFFFFFF
|
||||
}
|
||||
copy(encrypt[4:], a.clientID)
|
||||
binary.LittleEndian.PutUint32(encrypt[8:], a.connectionID)
|
||||
|
||||
now := time.Now().Unix()
|
||||
binary.LittleEndian.PutUint32(encrypt[:4], uint32(now))
|
||||
|
||||
binary.LittleEndian.PutUint16(encrypt[12:], uint16(retSize&0xFFFF))
|
||||
binary.LittleEndian.PutUint16(encrypt[14:], uint16(randSize&0xFFFF))
|
||||
|
||||
a.initUserKeyAndID()
|
||||
|
||||
aesCipherKey := core.Kdf(base64.StdEncoding.EncodeToString(a.userKey)+a.salt, 16)
|
||||
block, err := aes.NewCipher(aesCipherKey)
|
||||
if err != nil {
|
||||
return nil
|
||||
}
|
||||
encryptData := make([]byte, 16)
|
||||
iv := make([]byte, aes.BlockSize)
|
||||
cbc := cipher.NewCBCEncrypter(block, iv)
|
||||
cbc.CryptBlocks(encryptData, encrypt[:16])
|
||||
copy(encrypt[:4], a.uid[:])
|
||||
copy(encrypt[4:4+16], encryptData)
|
||||
|
||||
h := a.hmac(key, encrypt[:20])
|
||||
copy(encrypt[20:], h[:4])
|
||||
|
||||
rand.Read(ret[:1])
|
||||
h = a.hmac(key, ret[:1])
|
||||
copy(ret[1:], h[:7-1])
|
||||
|
||||
copy(ret[7:], encrypt)
|
||||
copy(ret[dataOffset:], data)
|
||||
|
||||
h = a.hmac(a.userKey, ret[:retSize-4])
|
||||
copy(ret[retSize-4:], h[:4])
|
||||
|
||||
return
|
||||
}
|
||||
22
component/ssr/protocol/auth_aes128_sha1.go
Normal file
22
component/ssr/protocol/auth_aes128_sha1.go
Normal file
|
|
@ -0,0 +1,22 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
)
|
||||
|
||||
func init() {
|
||||
register("auth_aes128_sha1", newAuthAES128SHA1)
|
||||
}
|
||||
|
||||
func newAuthAES128SHA1(b *Base) Protocol {
|
||||
return &authAES128{
|
||||
Base: b,
|
||||
recvInfo: &recvInfo{buffer: new(bytes.Buffer)},
|
||||
authData: &authData{},
|
||||
salt: "auth_aes128_sha1",
|
||||
hmac: tools.HmacSHA1,
|
||||
hashDigest: tools.SHA1Sum,
|
||||
}
|
||||
}
|
||||
428
component/ssr/protocol/auth_chain_a.go
Normal file
428
component/ssr/protocol/auth_chain_a.go
Normal file
|
|
@ -0,0 +1,428 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/aes"
|
||||
"crypto/cipher"
|
||||
"crypto/rc4"
|
||||
"encoding/base64"
|
||||
"encoding/binary"
|
||||
"math/rand"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
"github.com/Dreamacro/go-shadowsocks2/core"
|
||||
)
|
||||
|
||||
type authChain struct {
|
||||
*Base
|
||||
*recvInfo
|
||||
*authData
|
||||
randomClient shift128PlusContext
|
||||
randomServer shift128PlusContext
|
||||
enc cipher.Stream
|
||||
dec cipher.Stream
|
||||
headerSent bool
|
||||
lastClientHash []byte
|
||||
lastServerHash []byte
|
||||
userKey []byte
|
||||
uid [4]byte
|
||||
salt string
|
||||
hmac hmacMethod
|
||||
hashDigest hashDigestMethod
|
||||
rnd rndMethod
|
||||
dataSizeList []int
|
||||
dataSizeList2 []int
|
||||
chunkID uint32
|
||||
}
|
||||
|
||||
func init() {
|
||||
register("auth_chain_a", newAuthChainA)
|
||||
}
|
||||
|
||||
func newAuthChainA(b *Base) Protocol {
|
||||
return &authChain{
|
||||
Base: b,
|
||||
authData: &authData{},
|
||||
salt: "auth_chain_a",
|
||||
hmac: tools.HmacMD5,
|
||||
hashDigest: tools.SHA1Sum,
|
||||
rnd: authChainAGetRandLen,
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authChain) initForConn(iv []byte) Protocol {
|
||||
r := &authChain{
|
||||
Base: &Base{
|
||||
IV: iv,
|
||||
Key: a.Key,
|
||||
TCPMss: a.TCPMss,
|
||||
Overhead: a.Overhead,
|
||||
Param: a.Param,
|
||||
},
|
||||
recvInfo: &recvInfo{recvID: 1, buffer: new(bytes.Buffer)},
|
||||
authData: a.authData,
|
||||
salt: a.salt,
|
||||
hmac: a.hmac,
|
||||
hashDigest: a.hashDigest,
|
||||
rnd: a.rnd,
|
||||
}
|
||||
if r.salt == "auth_chain_b" {
|
||||
initDataSize(r)
|
||||
}
|
||||
return r
|
||||
}
|
||||
|
||||
func (a *authChain) GetProtocolOverhead() int {
|
||||
return 4
|
||||
}
|
||||
|
||||
func (a *authChain) SetOverhead(overhead int) {
|
||||
a.Overhead = overhead
|
||||
}
|
||||
|
||||
func (a *authChain) Decode(b []byte) ([]byte, int, error) {
|
||||
a.buffer.Reset()
|
||||
key := pool.Get(len(a.userKey) + 4)
|
||||
defer pool.Put(key)
|
||||
readSize := 0
|
||||
copy(key, a.userKey)
|
||||
for len(b) > 4 {
|
||||
binary.LittleEndian.PutUint32(key[len(a.userKey):], a.recvID)
|
||||
dataLen := (int)((uint(b[1]^a.lastServerHash[15]) << 8) + uint(b[0]^a.lastServerHash[14]))
|
||||
randLen := a.getServerRandLen(dataLen, a.Overhead)
|
||||
length := randLen + dataLen
|
||||
if length >= 4096 {
|
||||
return nil, 0, errAuthChainDataLengthError
|
||||
}
|
||||
length += 4
|
||||
if length > len(b) {
|
||||
break
|
||||
}
|
||||
|
||||
hash := a.hmac(key, b[:length-2])
|
||||
if !bytes.Equal(hash[:2], b[length-2:length]) {
|
||||
return nil, 0, errAuthChainHMACError
|
||||
}
|
||||
var dataPos int
|
||||
if dataLen > 0 && randLen > 0 {
|
||||
dataPos = 2 + getRandStartPos(&a.randomServer, randLen)
|
||||
} else {
|
||||
dataPos = 2
|
||||
}
|
||||
d := pool.Get(dataLen)
|
||||
a.dec.XORKeyStream(d, b[dataPos:dataPos+dataLen])
|
||||
a.buffer.Write(d)
|
||||
pool.Put(d)
|
||||
if a.recvID == 1 {
|
||||
a.TCPMss = int(binary.LittleEndian.Uint16(a.buffer.Next(2)))
|
||||
}
|
||||
a.lastServerHash = hash
|
||||
a.recvID++
|
||||
b = b[length:]
|
||||
readSize += length
|
||||
}
|
||||
return a.buffer.Bytes(), readSize, nil
|
||||
}
|
||||
|
||||
func (a *authChain) Encode(b []byte) ([]byte, error) {
|
||||
a.buffer.Reset()
|
||||
bSize := len(b)
|
||||
offset := 0
|
||||
if bSize > 0 && !a.headerSent {
|
||||
headSize := 1200
|
||||
if headSize > bSize {
|
||||
headSize = bSize
|
||||
}
|
||||
a.buffer.Write(a.packAuthData(b[:headSize]))
|
||||
offset += headSize
|
||||
bSize -= headSize
|
||||
a.headerSent = true
|
||||
}
|
||||
var unitSize = a.TCPMss - a.Overhead
|
||||
for bSize > unitSize {
|
||||
dataLen, randLength := a.packedDataLen(b[offset : offset+unitSize])
|
||||
d := pool.Get(dataLen)
|
||||
a.packData(d, b[offset:offset+unitSize], randLength)
|
||||
a.buffer.Write(d)
|
||||
pool.Put(d)
|
||||
bSize -= unitSize
|
||||
offset += unitSize
|
||||
}
|
||||
if bSize > 0 {
|
||||
dataLen, randLength := a.packedDataLen(b[offset:])
|
||||
d := pool.Get(dataLen)
|
||||
a.packData(d, b[offset:], randLength)
|
||||
a.buffer.Write(d)
|
||||
pool.Put(d)
|
||||
}
|
||||
return a.buffer.Bytes(), nil
|
||||
}
|
||||
|
||||
func (a *authChain) DecodePacket(b []byte) ([]byte, int, error) {
|
||||
bSize := len(b)
|
||||
if bSize < 9 {
|
||||
return nil, 0, errAuthChainDataLengthError
|
||||
}
|
||||
h := a.hmac(a.userKey, b[:bSize-1])
|
||||
if h[0] != b[bSize-1] {
|
||||
return nil, 0, errAuthChainHMACError
|
||||
}
|
||||
hash := a.hmac(a.Key, b[bSize-8:bSize-1])
|
||||
cipherKey := a.getRC4CipherKey(hash)
|
||||
dec, _ := rc4.NewCipher(cipherKey)
|
||||
randLength := udpGetRandLen(&a.randomServer, hash)
|
||||
bSize -= 8 + randLength
|
||||
dec.XORKeyStream(b, b[:bSize])
|
||||
return b, bSize, nil
|
||||
}
|
||||
|
||||
func (a *authChain) EncodePacket(b []byte) ([]byte, error) {
|
||||
a.initUserKeyAndID()
|
||||
authData := pool.Get(3)
|
||||
defer pool.Put(authData)
|
||||
rand.Read(authData)
|
||||
hash := a.hmac(a.Key, authData)
|
||||
uid := pool.Get(4)
|
||||
defer pool.Put(uid)
|
||||
for i := 0; i < 4; i++ {
|
||||
uid[i] = a.uid[i] ^ hash[i]
|
||||
}
|
||||
|
||||
cipherKey := a.getRC4CipherKey(hash)
|
||||
enc, _ := rc4.NewCipher(cipherKey)
|
||||
var buf bytes.Buffer
|
||||
enc.XORKeyStream(b, b)
|
||||
buf.Write(b)
|
||||
|
||||
randLength := udpGetRandLen(&a.randomClient, hash)
|
||||
randBytes := pool.Get(randLength)
|
||||
defer pool.Put(randBytes)
|
||||
buf.Write(randBytes)
|
||||
|
||||
buf.Write(authData)
|
||||
buf.Write(uid)
|
||||
|
||||
h := a.hmac(a.userKey, buf.Bytes())
|
||||
buf.Write(h[:1])
|
||||
return buf.Bytes(), nil
|
||||
}
|
||||
|
||||
func (a *authChain) getRC4CipherKey(hash []byte) []byte {
|
||||
base64UserKey := base64.StdEncoding.EncodeToString(a.userKey)
|
||||
return a.calcRC4CipherKey(hash, base64UserKey)
|
||||
}
|
||||
|
||||
func (a *authChain) calcRC4CipherKey(hash []byte, base64UserKey string) []byte {
|
||||
password := pool.Get(len(base64UserKey) + base64.StdEncoding.EncodedLen(16))
|
||||
defer pool.Put(password)
|
||||
copy(password, base64UserKey)
|
||||
base64.StdEncoding.Encode(password[len(base64UserKey):], hash[:16])
|
||||
return core.Kdf(string(password), 16)
|
||||
}
|
||||
|
||||
func (a *authChain) initUserKeyAndID() {
|
||||
if a.userKey == nil {
|
||||
params := strings.Split(a.Param, ":")
|
||||
if len(params) >= 2 {
|
||||
if userID, err := strconv.ParseUint(params[0], 10, 32); err == nil {
|
||||
binary.LittleEndian.PutUint32(a.uid[:], uint32(userID))
|
||||
a.userKey = []byte(params[1])[:len(a.userKey)]
|
||||
}
|
||||
}
|
||||
|
||||
if a.userKey == nil {
|
||||
rand.Read(a.uid[:])
|
||||
a.userKey = make([]byte, len(a.Key))
|
||||
copy(a.userKey, a.Key)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authChain) getClientRandLen(dataLength int, overhead int) int {
|
||||
return a.rnd(dataLength, &a.randomClient, a.lastClientHash, a.dataSizeList, a.dataSizeList2, overhead)
|
||||
}
|
||||
|
||||
func (a *authChain) getServerRandLen(dataLength int, overhead int) int {
|
||||
return a.rnd(dataLength, &a.randomServer, a.lastServerHash, a.dataSizeList, a.dataSizeList2, overhead)
|
||||
}
|
||||
|
||||
func (a *authChain) packedDataLen(data []byte) (chunkLength, randLength int) {
|
||||
dataLength := len(data)
|
||||
randLength = a.getClientRandLen(dataLength, a.Overhead)
|
||||
chunkLength = randLength + dataLength + 2 + 2
|
||||
return
|
||||
}
|
||||
|
||||
func (a *authChain) packData(outData []byte, data []byte, randLength int) {
|
||||
dataLength := len(data)
|
||||
outLength := randLength + dataLength + 2
|
||||
outData[0] = byte(dataLength) ^ a.lastClientHash[14]
|
||||
outData[1] = byte(dataLength>>8) ^ a.lastClientHash[15]
|
||||
|
||||
{
|
||||
if dataLength > 0 {
|
||||
randPart1Length := getRandStartPos(&a.randomClient, randLength)
|
||||
rand.Read(outData[2 : 2+randPart1Length])
|
||||
a.enc.XORKeyStream(outData[2+randPart1Length:], data)
|
||||
rand.Read(outData[2+randPart1Length+dataLength : outLength])
|
||||
} else {
|
||||
rand.Read(outData[2 : 2+randLength])
|
||||
}
|
||||
}
|
||||
|
||||
userKeyLen := uint8(len(a.userKey))
|
||||
key := pool.Get(int(userKeyLen + 4))
|
||||
defer pool.Put(key)
|
||||
copy(key, a.userKey)
|
||||
a.chunkID++
|
||||
binary.LittleEndian.PutUint32(key[userKeyLen:], a.chunkID)
|
||||
a.lastClientHash = a.hmac(key, outData[:outLength])
|
||||
copy(outData[outLength:], a.lastClientHash[:2])
|
||||
return
|
||||
}
|
||||
|
||||
const authHeadLength = 4 + 8 + 4 + 16 + 4
|
||||
|
||||
func (a *authChain) packAuthData(data []byte) (outData []byte) {
|
||||
outData = make([]byte, authHeadLength, authHeadLength+1500)
|
||||
a.mutex.Lock()
|
||||
defer a.mutex.Unlock()
|
||||
a.connectionID++
|
||||
if a.connectionID > 0xFF000000 {
|
||||
rand.Read(a.clientID)
|
||||
b := make([]byte, 4)
|
||||
rand.Read(b)
|
||||
a.connectionID = binary.LittleEndian.Uint32(b) & 0xFFFFFF
|
||||
}
|
||||
var key = make([]byte, len(a.IV)+len(a.Key))
|
||||
copy(key, a.IV)
|
||||
copy(key[len(a.IV):], a.Key)
|
||||
|
||||
encrypt := make([]byte, 20)
|
||||
t := time.Now().Unix()
|
||||
binary.LittleEndian.PutUint32(encrypt[:4], uint32(t))
|
||||
copy(encrypt[4:8], a.clientID)
|
||||
binary.LittleEndian.PutUint32(encrypt[8:], a.connectionID)
|
||||
binary.LittleEndian.PutUint16(encrypt[12:], uint16(a.Overhead))
|
||||
binary.LittleEndian.PutUint16(encrypt[14:], 0)
|
||||
|
||||
// first 12 bytes
|
||||
{
|
||||
rand.Read(outData[:4])
|
||||
a.lastClientHash = a.hmac(key, outData[:4])
|
||||
copy(outData[4:], a.lastClientHash[:8])
|
||||
}
|
||||
var base64UserKey string
|
||||
// uid & 16 bytes auth data
|
||||
{
|
||||
a.initUserKeyAndID()
|
||||
uid := make([]byte, 4)
|
||||
for i := 0; i < 4; i++ {
|
||||
uid[i] = a.uid[i] ^ a.lastClientHash[8+i]
|
||||
}
|
||||
base64UserKey = base64.StdEncoding.EncodeToString(a.userKey)
|
||||
aesCipherKey := core.Kdf(base64UserKey+a.salt, 16)
|
||||
block, err := aes.NewCipher(aesCipherKey)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
encryptData := make([]byte, 16)
|
||||
iv := make([]byte, aes.BlockSize)
|
||||
cbc := cipher.NewCBCEncrypter(block, iv)
|
||||
cbc.CryptBlocks(encryptData, encrypt[:16])
|
||||
copy(encrypt[:4], uid[:])
|
||||
copy(encrypt[4:4+16], encryptData)
|
||||
}
|
||||
// final HMAC
|
||||
{
|
||||
a.lastServerHash = a.hmac(a.userKey, encrypt[:20])
|
||||
|
||||
copy(outData[12:], encrypt)
|
||||
copy(outData[12+20:], a.lastServerHash[:4])
|
||||
}
|
||||
|
||||
// init cipher
|
||||
cipherKey := a.calcRC4CipherKey(a.lastClientHash, base64UserKey)
|
||||
a.enc, _ = rc4.NewCipher(cipherKey)
|
||||
a.dec, _ = rc4.NewCipher(cipherKey)
|
||||
|
||||
// data
|
||||
chunkLength, randLength := a.packedDataLen(data)
|
||||
if chunkLength <= 1500 {
|
||||
outData = outData[:authHeadLength+chunkLength]
|
||||
} else {
|
||||
newOutData := make([]byte, authHeadLength+chunkLength)
|
||||
copy(newOutData, outData[:authHeadLength])
|
||||
outData = newOutData
|
||||
}
|
||||
a.packData(outData[authHeadLength:], data, randLength)
|
||||
return
|
||||
}
|
||||
|
||||
func getRandStartPos(random *shift128PlusContext, randLength int) int {
|
||||
if randLength > 0 {
|
||||
return int(random.Next() % 8589934609 % uint64(randLength))
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func authChainAGetRandLen(dataLength int, random *shift128PlusContext, lastHash []byte, dataSizeList, dataSizeList2 []int, overhead int) int {
|
||||
if dataLength > 1440 {
|
||||
return 0
|
||||
}
|
||||
random.InitFromBinDatalen(lastHash[:16], dataLength)
|
||||
if dataLength > 1300 {
|
||||
return int(random.Next() % 31)
|
||||
}
|
||||
if dataLength > 900 {
|
||||
return int(random.Next() % 127)
|
||||
}
|
||||
if dataLength > 400 {
|
||||
return int(random.Next() % 521)
|
||||
}
|
||||
return int(random.Next() % 1021)
|
||||
}
|
||||
|
||||
func udpGetRandLen(random *shift128PlusContext, lastHash []byte) int {
|
||||
random.InitFromBin(lastHash[:16])
|
||||
return int(random.Next() % 127)
|
||||
}
|
||||
|
||||
type shift128PlusContext struct {
|
||||
v [2]uint64
|
||||
}
|
||||
|
||||
func (ctx *shift128PlusContext) InitFromBin(bin []byte) {
|
||||
var fillBin [16]byte
|
||||
copy(fillBin[:], bin)
|
||||
|
||||
ctx.v[0] = binary.LittleEndian.Uint64(fillBin[:8])
|
||||
ctx.v[1] = binary.LittleEndian.Uint64(fillBin[8:])
|
||||
}
|
||||
|
||||
func (ctx *shift128PlusContext) InitFromBinDatalen(bin []byte, datalen int) {
|
||||
var fillBin [16]byte
|
||||
copy(fillBin[:], bin)
|
||||
binary.LittleEndian.PutUint16(fillBin[:2], uint16(datalen))
|
||||
|
||||
ctx.v[0] = binary.LittleEndian.Uint64(fillBin[:8])
|
||||
ctx.v[1] = binary.LittleEndian.Uint64(fillBin[8:])
|
||||
|
||||
for i := 0; i < 4; i++ {
|
||||
ctx.Next()
|
||||
}
|
||||
}
|
||||
|
||||
func (ctx *shift128PlusContext) Next() uint64 {
|
||||
x := ctx.v[0]
|
||||
y := ctx.v[1]
|
||||
ctx.v[0] = y
|
||||
x ^= x << 23
|
||||
x ^= y ^ (x >> 17) ^ (y >> 26)
|
||||
ctx.v[1] = x
|
||||
return x + y
|
||||
}
|
||||
72
component/ssr/protocol/auth_chain_b.go
Normal file
72
component/ssr/protocol/auth_chain_b.go
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"sort"
|
||||
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
)
|
||||
|
||||
func init() {
|
||||
register("auth_chain_b", newAuthChainB)
|
||||
}
|
||||
|
||||
func newAuthChainB(b *Base) Protocol {
|
||||
return &authChain{
|
||||
Base: b,
|
||||
authData: &authData{},
|
||||
salt: "auth_chain_b",
|
||||
hmac: tools.HmacMD5,
|
||||
hashDigest: tools.SHA1Sum,
|
||||
rnd: authChainBGetRandLen,
|
||||
}
|
||||
}
|
||||
|
||||
func initDataSize(r *authChain) {
|
||||
random := &r.randomServer
|
||||
random.InitFromBin(r.Key)
|
||||
len := random.Next()%8 + 4
|
||||
r.dataSizeList = make([]int, len)
|
||||
for i := 0; i < int(len); i++ {
|
||||
r.dataSizeList[i] = int(random.Next() % 2340 % 2040 % 1440)
|
||||
}
|
||||
sort.Ints(r.dataSizeList)
|
||||
|
||||
len = random.Next()%16 + 8
|
||||
r.dataSizeList2 = make([]int, len)
|
||||
for i := 0; i < int(len); i++ {
|
||||
r.dataSizeList2[i] = int(random.Next() % 2340 % 2040 % 1440)
|
||||
}
|
||||
sort.Ints(r.dataSizeList2)
|
||||
}
|
||||
|
||||
func authChainBGetRandLen(dataLength int, random *shift128PlusContext, lastHash []byte, dataSizeList, dataSizeList2 []int, overhead int) int {
|
||||
if dataLength > 1440 {
|
||||
return 0
|
||||
}
|
||||
random.InitFromBinDatalen(lastHash[:16], dataLength)
|
||||
pos := sort.Search(len(dataSizeList), func(i int) bool { return dataSizeList[i] > dataLength+overhead })
|
||||
finalPos := uint64(pos) + random.Next()%uint64(len(dataSizeList))
|
||||
if finalPos < uint64(len(dataSizeList)) {
|
||||
return dataSizeList[finalPos] - dataLength - overhead
|
||||
}
|
||||
|
||||
pos = sort.Search(len(dataSizeList2), func(i int) bool { return dataSizeList2[i] > dataLength+overhead })
|
||||
finalPos = uint64(pos) + random.Next()%uint64(len(dataSizeList2))
|
||||
if finalPos < uint64(len(dataSizeList2)) {
|
||||
return dataSizeList2[finalPos] - dataLength - overhead
|
||||
}
|
||||
if finalPos < uint64(pos+len(dataSizeList2)-1) {
|
||||
return 0
|
||||
}
|
||||
|
||||
if dataLength > 1300 {
|
||||
return int(random.Next() % 31)
|
||||
}
|
||||
if dataLength > 900 {
|
||||
return int(random.Next() % 127)
|
||||
}
|
||||
if dataLength > 400 {
|
||||
return int(random.Next() % 521)
|
||||
}
|
||||
return int(random.Next() % 1021)
|
||||
}
|
||||
253
component/ssr/protocol/auth_sha1_v4.go
Normal file
253
component/ssr/protocol/auth_sha1_v4.go
Normal file
|
|
@ -0,0 +1,253 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"hash/adler32"
|
||||
"hash/crc32"
|
||||
"math/rand"
|
||||
"time"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
"github.com/Dreamacro/clash/component/ssr/tools"
|
||||
)
|
||||
|
||||
type authSHA1V4 struct {
|
||||
*Base
|
||||
*authData
|
||||
headerSent bool
|
||||
buffer bytes.Buffer
|
||||
}
|
||||
|
||||
func init() {
|
||||
register("auth_sha1_v4", newAuthSHA1V4)
|
||||
}
|
||||
|
||||
func newAuthSHA1V4(b *Base) Protocol {
|
||||
return &authSHA1V4{Base: b, authData: &authData{}}
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) initForConn(iv []byte) Protocol {
|
||||
return &authSHA1V4{
|
||||
Base: &Base{
|
||||
IV: iv,
|
||||
Key: a.Key,
|
||||
TCPMss: a.TCPMss,
|
||||
Overhead: a.Overhead,
|
||||
Param: a.Param,
|
||||
},
|
||||
authData: a.authData,
|
||||
}
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) GetProtocolOverhead() int {
|
||||
return 7
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) SetOverhead(overhead int) {
|
||||
a.Overhead = overhead
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) Decode(b []byte) ([]byte, int, error) {
|
||||
a.buffer.Reset()
|
||||
bSize := len(b)
|
||||
originalSize := bSize
|
||||
for bSize > 4 {
|
||||
crc := crc32.ChecksumIEEE(b[:2]) & 0xFFFF
|
||||
if binary.LittleEndian.Uint16(b[2:4]) != uint16(crc) {
|
||||
return nil, 0, errAuthSHA1v4CRC32Error
|
||||
}
|
||||
length := int(binary.BigEndian.Uint16(b[:2]))
|
||||
if length >= 8192 || length < 8 {
|
||||
return nil, 0, errAuthSHA1v4DataLengthError
|
||||
}
|
||||
if length > bSize {
|
||||
break
|
||||
}
|
||||
|
||||
if adler32.Checksum(b[:length-4]) == binary.LittleEndian.Uint32(b[length-4:]) {
|
||||
pos := int(b[4])
|
||||
if pos != 0xFF {
|
||||
pos += 4
|
||||
} else {
|
||||
pos = int(binary.BigEndian.Uint16(b[5:5+2])) + 4
|
||||
}
|
||||
retSize := length - pos - 4
|
||||
a.buffer.Write(b[pos : pos+retSize])
|
||||
bSize -= length
|
||||
b = b[length:]
|
||||
} else {
|
||||
return nil, 0, errAuthSHA1v4IncorrectChecksum
|
||||
}
|
||||
}
|
||||
return a.buffer.Bytes(), originalSize - bSize, nil
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) Encode(b []byte) ([]byte, error) {
|
||||
a.buffer.Reset()
|
||||
bSize := len(b)
|
||||
offset := 0
|
||||
if !a.headerSent && bSize > 0 {
|
||||
headSize := getHeadSize(b, 30)
|
||||
if headSize > bSize {
|
||||
headSize = bSize
|
||||
}
|
||||
a.buffer.Write(a.packAuthData(b[:headSize]))
|
||||
offset += headSize
|
||||
bSize -= headSize
|
||||
a.headerSent = true
|
||||
}
|
||||
const blockSize = 4096
|
||||
for bSize > blockSize {
|
||||
packSize, randSize := a.packedDataSize(b[offset : offset+blockSize])
|
||||
pack := pool.Get(packSize)
|
||||
a.packData(b[offset:offset+blockSize], pack, randSize)
|
||||
a.buffer.Write(pack)
|
||||
pool.Put(pack)
|
||||
offset += blockSize
|
||||
bSize -= blockSize
|
||||
}
|
||||
if bSize > 0 {
|
||||
packSize, randSize := a.packedDataSize(b[offset:])
|
||||
pack := pool.Get(packSize)
|
||||
a.packData(b[offset:], pack, randSize)
|
||||
a.buffer.Write(pack)
|
||||
pool.Put(pack)
|
||||
}
|
||||
return a.buffer.Bytes(), nil
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) DecodePacket(b []byte) ([]byte, int, error) {
|
||||
return b, len(b), nil
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) EncodePacket(b []byte) ([]byte, error) {
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) packedDataSize(data []byte) (packSize, randSize int) {
|
||||
dataSize := len(data)
|
||||
randSize = 1
|
||||
if dataSize <= 1300 {
|
||||
if dataSize > 400 {
|
||||
randSize += rand.Intn(128)
|
||||
} else {
|
||||
randSize += rand.Intn(1024)
|
||||
}
|
||||
}
|
||||
packSize = randSize + dataSize + 8
|
||||
return
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) packData(data, ret []byte, randSize int) {
|
||||
dataSize := len(data)
|
||||
retSize := len(ret)
|
||||
// 0~1, ret size
|
||||
binary.BigEndian.PutUint16(ret[:2], uint16(retSize&0xFFFF))
|
||||
// 2~3, crc of ret size
|
||||
crc := crc32.ChecksumIEEE(ret[:2]) & 0xFFFF
|
||||
binary.LittleEndian.PutUint16(ret[2:4], uint16(crc))
|
||||
// 4, rand size
|
||||
if randSize < 128 {
|
||||
ret[4] = uint8(randSize & 0xFF)
|
||||
} else {
|
||||
ret[4] = uint8(0xFF)
|
||||
binary.BigEndian.PutUint16(ret[5:7], uint16(randSize&0xFFFF))
|
||||
}
|
||||
// (rand size+4)~(ret size-4), data
|
||||
if dataSize > 0 {
|
||||
copy(ret[randSize+4:], data)
|
||||
}
|
||||
// (ret size-4)~end, adler32 of full data
|
||||
adler := adler32.Checksum(ret[:retSize-4])
|
||||
binary.LittleEndian.PutUint32(ret[retSize-4:], adler)
|
||||
}
|
||||
|
||||
func (a *authSHA1V4) packAuthData(data []byte) (ret []byte) {
|
||||
dataSize := len(data)
|
||||
randSize := 1
|
||||
if dataSize <= 1300 {
|
||||
if dataSize > 400 {
|
||||
randSize += rand.Intn(128)
|
||||
} else {
|
||||
randSize += rand.Intn(1024)
|
||||
}
|
||||
}
|
||||
dataOffset := randSize + 4 + 2
|
||||
retSize := dataOffset + dataSize + 12 + tools.HmacSHA1Len
|
||||
ret = make([]byte, retSize)
|
||||
a.mutex.Lock()
|
||||
defer a.mutex.Unlock()
|
||||
a.connectionID++
|
||||
if a.connectionID > 0xFF000000 {
|
||||
a.clientID = nil
|
||||
}
|
||||
if len(a.clientID) == 0 {
|
||||
a.clientID = make([]byte, 8)
|
||||
rand.Read(a.clientID)
|
||||
b := make([]byte, 4)
|
||||
rand.Read(b)
|
||||
a.connectionID = binary.LittleEndian.Uint32(b) & 0xFFFFFF
|
||||
}
|
||||
// 0~1, ret size
|
||||
binary.BigEndian.PutUint16(ret[:2], uint16(retSize&0xFFFF))
|
||||
|
||||
// 2~6, crc of (ret size+salt+key)
|
||||
salt := []byte("auth_sha1_v4")
|
||||
crcData := make([]byte, len(salt)+len(a.Key)+2)
|
||||
copy(crcData[:2], ret[:2])
|
||||
copy(crcData[2:], salt)
|
||||
copy(crcData[2+len(salt):], a.Key)
|
||||
crc := crc32.ChecksumIEEE(crcData) & 0xFFFFFFFF
|
||||
// 2~6, crc of (ret size+salt+key)
|
||||
binary.LittleEndian.PutUint32(ret[2:], crc)
|
||||
// 6~(rand size+6), rand numbers
|
||||
rand.Read(ret[dataOffset-randSize : dataOffset])
|
||||
// 6, rand size
|
||||
if randSize < 128 {
|
||||
ret[6] = byte(randSize & 0xFF)
|
||||
} else {
|
||||
// 6, magic number 0xFF
|
||||
ret[6] = 0xFF
|
||||
// 7~8, rand size
|
||||
binary.BigEndian.PutUint16(ret[7:9], uint16(randSize&0xFFFF))
|
||||
}
|
||||
// rand size+6~(rand size+10), time stamp
|
||||
now := time.Now().Unix()
|
||||
binary.LittleEndian.PutUint32(ret[dataOffset:dataOffset+4], uint32(now))
|
||||
// rand size+10~(rand size+14), client ID
|
||||
copy(ret[dataOffset+4:dataOffset+4+4], a.clientID[:4])
|
||||
// rand size+14~(rand size+18), connection ID
|
||||
binary.LittleEndian.PutUint32(ret[dataOffset+8:dataOffset+8+4], a.connectionID)
|
||||
// rand size+18~(rand size+18)+data length, data
|
||||
copy(ret[dataOffset+12:], data)
|
||||
|
||||
key := make([]byte, len(a.IV)+len(a.Key))
|
||||
copy(key, a.IV)
|
||||
copy(key[len(a.IV):], a.Key)
|
||||
|
||||
h := tools.HmacSHA1(key, ret[:retSize-tools.HmacSHA1Len])
|
||||
// (ret size-10)~(ret size)/(rand size)+18+data length~end, hmac
|
||||
copy(ret[retSize-tools.HmacSHA1Len:], h[:tools.HmacSHA1Len])
|
||||
return ret
|
||||
}
|
||||
|
||||
func getHeadSize(data []byte, defaultValue int) int {
|
||||
if data == nil || len(data) < 2 {
|
||||
return defaultValue
|
||||
}
|
||||
headType := data[0] & 0x07
|
||||
switch headType {
|
||||
case 1:
|
||||
// IPv4 1+4+2
|
||||
return 7
|
||||
case 4:
|
||||
// IPv6 1+16+2
|
||||
return 19
|
||||
case 3:
|
||||
// domain name, variant length
|
||||
return 4 + int(data[1])
|
||||
}
|
||||
|
||||
return defaultValue
|
||||
}
|
||||
10
component/ssr/protocol/base.go
Normal file
10
component/ssr/protocol/base.go
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
package protocol
|
||||
|
||||
// Base information for protocol
|
||||
type Base struct {
|
||||
IV []byte
|
||||
Key []byte
|
||||
TCPMss int
|
||||
Overhead int
|
||||
Param string
|
||||
}
|
||||
36
component/ssr/protocol/origin.go
Normal file
36
component/ssr/protocol/origin.go
Normal file
|
|
@ -0,0 +1,36 @@
|
|||
package protocol
|
||||
|
||||
type origin struct{ *Base }
|
||||
|
||||
func init() {
|
||||
register("origin", newOrigin)
|
||||
}
|
||||
|
||||
func newOrigin(b *Base) Protocol {
|
||||
return &origin{}
|
||||
}
|
||||
|
||||
func (o *origin) initForConn(iv []byte) Protocol { return &origin{} }
|
||||
|
||||
func (o *origin) GetProtocolOverhead() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (o *origin) SetOverhead(overhead int) {
|
||||
}
|
||||
|
||||
func (o *origin) Decode(b []byte) ([]byte, int, error) {
|
||||
return b, len(b), nil
|
||||
}
|
||||
|
||||
func (o *origin) Encode(b []byte) ([]byte, error) {
|
||||
return b, nil
|
||||
}
|
||||
|
||||
func (o *origin) DecodePacket(b []byte) ([]byte, int, error) {
|
||||
return b, len(b), nil
|
||||
}
|
||||
|
||||
func (o *origin) EncodePacket(b []byte) ([]byte, error) {
|
||||
return b, nil
|
||||
}
|
||||
42
component/ssr/protocol/packet.go
Normal file
42
component/ssr/protocol/packet.go
Normal file
|
|
@ -0,0 +1,42 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"net"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
)
|
||||
|
||||
// NewPacketConn returns a net.NewPacketConn with protocol decoding/encoding
|
||||
func NewPacketConn(pc net.PacketConn, p Protocol) net.PacketConn {
|
||||
return &PacketConn{PacketConn: pc, Protocol: p.initForConn(nil)}
|
||||
}
|
||||
|
||||
// PacketConn represents a protocol packet connection
|
||||
type PacketConn struct {
|
||||
net.PacketConn
|
||||
Protocol
|
||||
}
|
||||
|
||||
func (c *PacketConn) WriteTo(b []byte, addr net.Addr) (int, error) {
|
||||
buf := pool.Get(pool.RelayBufferSize)
|
||||
defer pool.Put(buf)
|
||||
buf, err := c.EncodePacket(b)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
_, err = c.PacketConn.WriteTo(buf, addr)
|
||||
return len(b), err
|
||||
}
|
||||
|
||||
func (c *PacketConn) ReadFrom(b []byte) (int, net.Addr, error) {
|
||||
n, addr, err := c.PacketConn.ReadFrom(b)
|
||||
if err != nil {
|
||||
return n, addr, err
|
||||
}
|
||||
bb, length, err := c.DecodePacket(b[:n])
|
||||
if err != nil {
|
||||
return n, addr, err
|
||||
}
|
||||
copy(b, bb)
|
||||
return length, addr, err
|
||||
}
|
||||
61
component/ssr/protocol/protocol.go
Normal file
61
component/ssr/protocol/protocol.go
Normal file
|
|
@ -0,0 +1,61 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"strings"
|
||||
"sync"
|
||||
)
|
||||
|
||||
var (
|
||||
errAuthAES128HMACError = errors.New("auth_aes128_* post decrypt hmac error")
|
||||
errAuthAES128DataLengthError = errors.New("auth_aes128_* post decrypt length mismatch")
|
||||
errAuthSHA1v4CRC32Error = errors.New("auth_sha1_v4 post decrypt data crc32 error")
|
||||
errAuthSHA1v4DataLengthError = errors.New("auth_sha1_v4 post decrypt data length error")
|
||||
errAuthSHA1v4IncorrectChecksum = errors.New("auth_sha1_v4 post decrypt incorrect checksum")
|
||||
errAuthChainDataLengthError = errors.New("auth_chain_* post decrypt length mismatch")
|
||||
errAuthChainHMACError = errors.New("auth_chain_* post decrypt hmac error")
|
||||
)
|
||||
|
||||
type authData struct {
|
||||
clientID []byte
|
||||
connectionID uint32
|
||||
mutex sync.Mutex
|
||||
}
|
||||
|
||||
type recvInfo struct {
|
||||
recvID uint32
|
||||
buffer *bytes.Buffer
|
||||
}
|
||||
|
||||
type hmacMethod func(key []byte, data []byte) []byte
|
||||
type hashDigestMethod func(data []byte) []byte
|
||||
type rndMethod func(dataSize int, random *shift128PlusContext, lastHash []byte, dataSizeList, dataSizeList2 []int, overhead int) int
|
||||
|
||||
// Protocol provides methods for decoding, encoding and iv setting
|
||||
type Protocol interface {
|
||||
initForConn(iv []byte) Protocol
|
||||
GetProtocolOverhead() int
|
||||
SetOverhead(int)
|
||||
Decode([]byte) ([]byte, int, error)
|
||||
Encode([]byte) ([]byte, error)
|
||||
DecodePacket([]byte) ([]byte, int, error)
|
||||
EncodePacket([]byte) ([]byte, error)
|
||||
}
|
||||
|
||||
type protocolCreator func(b *Base) Protocol
|
||||
|
||||
var protocolList = make(map[string]protocolCreator)
|
||||
|
||||
func register(name string, c protocolCreator) {
|
||||
protocolList[name] = c
|
||||
}
|
||||
|
||||
// PickProtocol returns a protocol of the given name
|
||||
func PickProtocol(name string, b *Base) (Protocol, error) {
|
||||
if protocolCreator, ok := protocolList[strings.ToLower(name)]; ok {
|
||||
return protocolCreator(b), nil
|
||||
}
|
||||
return nil, fmt.Errorf("Protocol %s not supported", name)
|
||||
}
|
||||
68
component/ssr/protocol/stream.go
Normal file
68
component/ssr/protocol/stream.go
Normal file
|
|
@ -0,0 +1,68 @@
|
|||
package protocol
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"net"
|
||||
|
||||
"github.com/Dreamacro/clash/common/pool"
|
||||
)
|
||||
|
||||
// NewConn wraps a stream-oriented net.Conn with protocol decoding/encoding
|
||||
func NewConn(c net.Conn, p Protocol, iv []byte) net.Conn {
|
||||
return &Conn{Conn: c, Protocol: p.initForConn(iv)}
|
||||
}
|
||||
|
||||
// Conn represents a protocol connection
|
||||
type Conn struct {
|
||||
net.Conn
|
||||
Protocol
|
||||
buf []byte
|
||||
offset int
|
||||
underDecoded bytes.Buffer
|
||||
}
|
||||
|
||||
func (c *Conn) Read(b []byte) (int, error) {
|
||||
if c.buf != nil {
|
||||
n := copy(b, c.buf[c.offset:])
|
||||
c.offset += n
|
||||
if c.offset == len(c.buf) {
|
||||
c.buf = nil
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
buf := pool.Get(pool.RelayBufferSize)
|
||||
defer pool.Put(buf)
|
||||
n, err := c.Conn.Read(buf)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
c.underDecoded.Write(buf[:n])
|
||||
underDecoded := c.underDecoded.Bytes()
|
||||
decoded, length, err := c.Decode(underDecoded)
|
||||
if err != nil {
|
||||
c.underDecoded.Reset()
|
||||
return 0, nil
|
||||
}
|
||||
if length == 0 {
|
||||
return 0, nil
|
||||
}
|
||||
c.underDecoded.Next(length)
|
||||
n = copy(b, decoded)
|
||||
if len(decoded) > len(b) {
|
||||
c.buf = decoded
|
||||
c.offset = n
|
||||
}
|
||||
return n, nil
|
||||
}
|
||||
|
||||
func (c *Conn) Write(b []byte) (int, error) {
|
||||
encoded, err := c.Encode(b)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
_, err = c.Conn.Write(encoded)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
return len(b), nil
|
||||
}
|
||||
33
component/ssr/tools/encrypt.go
Normal file
33
component/ssr/tools/encrypt.go
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
package tools
|
||||
|
||||
import (
|
||||
"crypto/hmac"
|
||||
"crypto/md5"
|
||||
"crypto/sha1"
|
||||
)
|
||||
|
||||
const HmacSHA1Len = 10
|
||||
|
||||
func HmacMD5(key, data []byte) []byte {
|
||||
hmacMD5 := hmac.New(md5.New, key)
|
||||
hmacMD5.Write(data)
|
||||
return hmacMD5.Sum(nil)[:16]
|
||||
}
|
||||
|
||||
func HmacSHA1(key, data []byte) []byte {
|
||||
hmacSHA1 := hmac.New(sha1.New, key)
|
||||
hmacSHA1.Write(data)
|
||||
return hmacSHA1.Sum(nil)[:20]
|
||||
}
|
||||
|
||||
func MD5Sum(b []byte) []byte {
|
||||
h := md5.New()
|
||||
h.Write(b)
|
||||
return h.Sum(nil)
|
||||
}
|
||||
|
||||
func SHA1Sum(b []byte) []byte {
|
||||
h := sha1.New()
|
||||
h.Write(b)
|
||||
return h.Sum(nil)
|
||||
}
|
||||
|
|
@ -13,6 +13,7 @@ const (
|
|||
Reject
|
||||
|
||||
Shadowsocks
|
||||
ShadowsocksR
|
||||
Snell
|
||||
Socks5
|
||||
Http
|
||||
|
|
@ -100,6 +101,8 @@ func (at AdapterType) String() string {
|
|||
|
||||
case Shadowsocks:
|
||||
return "Shadowsocks"
|
||||
case ShadowsocksR:
|
||||
return "ShadowsocksR"
|
||||
case Snell:
|
||||
return "Snell"
|
||||
case Socks5:
|
||||
|
|
|
|||
2
go.mod
2
go.mod
|
|
@ -3,7 +3,7 @@ module github.com/Dreamacro/clash
|
|||
go 1.14
|
||||
|
||||
require (
|
||||
github.com/Dreamacro/go-shadowsocks2 v0.1.5
|
||||
github.com/Dreamacro/go-shadowsocks2 v0.1.6-0.20200722122336-8e5c7db4f96a
|
||||
github.com/eapache/queue v1.1.0 // indirect
|
||||
github.com/go-chi/chi v4.1.2+incompatible
|
||||
github.com/go-chi/cors v1.1.1
|
||||
|
|
|
|||
4
go.sum
4
go.sum
|
|
@ -1,5 +1,5 @@
|
|||
github.com/Dreamacro/go-shadowsocks2 v0.1.5 h1:BizWSjmwzAyQoslz6YhJYMiAGT99j9cnm9zlxVr+kyI=
|
||||
github.com/Dreamacro/go-shadowsocks2 v0.1.5/go.mod h1:LSXCjyHesPY3pLjhwff1mQX72ItcBT/N2xNC685cYeU=
|
||||
github.com/Dreamacro/go-shadowsocks2 v0.1.6-0.20200722122336-8e5c7db4f96a h1:JhQFrFOkCpRB8qsN6PrzHFzjy/8iQpFFk5cbOiplh6s=
|
||||
github.com/Dreamacro/go-shadowsocks2 v0.1.6-0.20200722122336-8e5c7db4f96a/go.mod h1:LSXCjyHesPY3pLjhwff1mQX72ItcBT/N2xNC685cYeU=
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
|
|
|
|||
Loading…
Reference in a new issue