├── .github ├── PULL_REQUEST_TEMPLATE ├── CONTRIBUTING.md └── ISSUE_TEMPLATE │ ├── discussion.md │ ├── Question.md │ ├── question.md │ ├── feature_request.md │ └── bug_report.md ├── scripts ├── iproute.sh └── iptables.sh ├── .travis.yml ├── sskey_test.go ├── init.go ├── run_notlinux.go ├── run_linux.go ├── cli └── brook │ ├── .gitignore │ ├── buildAll.sh │ └── main.go ├── qr.go ├── sskey.go ├── sysproxy ├── system_darwin_test.go ├── system_linux.go ├── system_darwin.go └── system_windows.go ├── util.go ├── plugin ├── middleman.go └── middleman │ └── blackwhite │ └── blackwhite.go ├── vpn_linux.go ├── vpn_darwin.go ├── cipher.go ├── vpn_windows.go ├── tproxy ├── tcp.go └── udp.go ├── vpn.go ├── encrypt.go ├── socks5tohttp.go ├── run.go ├── relay.go ├── server.go ├── socks5.go ├── tunnel.go ├── tproxy_linux.go ├── ssserver.go ├── README.md ├── ssclient.go ├── client.go ├── OPENSOURCELICENSES └── LICENSE /.github/PULL_REQUEST_TEMPLATE: -------------------------------------------------------------------------------- 1 | Fixes # . 2 | 3 | Changes proposed in this pull request: 4 | - 5 | - 6 | - 7 | 8 | @mentions 9 | -------------------------------------------------------------------------------- /.github/CONTRIBUTING.md: -------------------------------------------------------------------------------- 1 | ### I want to create a PR. 2 | 3 | 1. Please create a issue first 4 | 1. Please create PR on `develop` branch 5 | -------------------------------------------------------------------------------- /scripts/iproute.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | sudo ip rule add fwmark 1 lookup 100 4 | sudo ip route add local 0.0.0.0/0 dev lo table 100 5 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: go 2 | sudo: false 3 | go: 4 | install: 5 | - go get -t -v . 6 | script: 7 | - go test -v . 8 | - cd cli/brook && go get -t -v . && go build . 9 | -------------------------------------------------------------------------------- /sskey_test.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import "testing" 4 | 5 | func TestMakeSSKey(t *testing.T) { 6 | key := MakeSSKey("a") 7 | t.Log(len(key)) 8 | t.Log(key) 9 | } 10 | -------------------------------------------------------------------------------- /init.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "github.com/txthinking/socks5" 5 | "github.com/txthinking/x" 6 | ) 7 | 8 | var Dial x.Dialer = x.DefaultDial 9 | 10 | // EnableDebug 11 | func EnableDebug() { 12 | socks5.Debug = true 13 | } 14 | -------------------------------------------------------------------------------- /run_notlinux.go: -------------------------------------------------------------------------------- 1 | // +build !linux 2 | 3 | package brook 4 | 5 | import "errors" 6 | 7 | func RunTproxy(address, server, password string, tcpTimeout, tcpDeadline, udpDeadline int) error { 8 | return errors.New("Only works on Linux") 9 | } 10 | -------------------------------------------------------------------------------- /run_linux.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | // RunTproxy used to start a tproxy 4 | func RunTproxy(address, server, password string, tcpTimeout, tcpDeadline, udpDeadline int) error { 5 | c, err := NewTproxy(address, server, password, tcpTimeout, tcpDeadline, udpDeadline) 6 | if err != nil { 7 | return err 8 | } 9 | return c.ListenAndServe() 10 | } 11 | -------------------------------------------------------------------------------- /cli/brook/.gitignore: -------------------------------------------------------------------------------- 1 | main 2 | brook 3 | brook_linux_386 4 | brook_linux_arm64 5 | brook_linux_arm7 6 | brook_linux_arm6 7 | brook_linux_arm5 8 | brook_macos_amd64 9 | brook_windows_amd64.exe 10 | brook_windows_386.exe 11 | brook_linux_mips 12 | brook_linux_mipsle 13 | brook_linux_mips64 14 | brook_linux_mips64le 15 | brook_linux_ppc64 16 | brook_linux_ppc64le 17 | -------------------------------------------------------------------------------- /qr.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "net/url" 5 | "os" 6 | 7 | "github.com/mdp/qrterminal" 8 | ) 9 | 10 | // QR generate and print QR code 11 | func QR(server, password string) { 12 | // TODO 13 | t := "default" 14 | s := t + " " + server + " " + password 15 | s = "brook://" + url.PathEscape(s) 16 | qrterminal.Generate(s, qrterminal.H, os.Stdout) 17 | } 18 | -------------------------------------------------------------------------------- /sskey.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import "crypto/md5" 4 | 5 | // MakeSSKey used to make shadowsocks aes-256-cfb key 6 | func MakeSSKey(password string) []byte { 7 | h := md5.New() 8 | h.Write([]byte(password)) 9 | tmp := h.Sum(nil) // 16 len 10 | 11 | h = md5.New() 12 | h.Write(tmp) 13 | h.Write([]byte(password)) 14 | tmp1 := h.Sum(nil) // 16 len 15 | 16 | return append(tmp, tmp1...) // 32 len 17 | } 18 | -------------------------------------------------------------------------------- /sysproxy/system_darwin_test.go: -------------------------------------------------------------------------------- 1 | // +build darwin 2 | // +build amd64 386 3 | 4 | package sysproxy 5 | 6 | import "testing" 7 | 8 | func TestGetNetworkServices(t *testing.T) { 9 | nss, err := getNetworkServices() 10 | if err != nil { 11 | t.Fatal(err) 12 | } 13 | for _, v := range nss { 14 | t.Log("|" + v + "|") 15 | } 16 | } 17 | 18 | func TestSetDNSServer(t *testing.T) { 19 | err := SetDNSServer("8.8.4.4") 20 | if err != nil { 21 | t.Fatal(err) 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/discussion.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Discussion 3 | about: Want to discuss a topic about Brook? 4 | title: '' 5 | labels: discussion 6 | assignees: '' 7 | 8 | --- 9 | 10 | ### Prerequisites 11 | 12 | * [ ] Did you check the [wiki](https://github.com/txthinking/brook/wiki)? 13 | * [ ] Did you search in [issues](https://github.com/txthinking/brook/issues)? 14 | * [ ] Are you running the latest version? 15 | * [ ] I will write this according to this template. 16 | * [ ] I will write this in English. 17 | 18 | ### Discussion 19 | 20 | -------------------------------------------------------------------------------- /util.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "net" 5 | 6 | "github.com/txthinking/socks5" 7 | ) 8 | 9 | func ErrorReply(r *socks5.Request, c *net.TCPConn, e error) error { 10 | var p *socks5.Reply 11 | if r.Atyp == socks5.ATYPIPv4 || r.Atyp == socks5.ATYPDomain { 12 | p = socks5.NewReply(socks5.RepConnectionRefused, socks5.ATYPIPv4, net.IPv4zero, []byte{0x00, 0x00}) 13 | } else { 14 | p = socks5.NewReply(socks5.RepConnectionRefused, socks5.ATYPIPv6, net.IPv6zero, []byte{0x00, 0x00}) 15 | } 16 | if err := p.WriteTo(c); err != nil { 17 | return err 18 | } 19 | return e 20 | } 21 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/Question.md: -------------------------------------------------------------------------------- 1 | ``` 2 | name: Question 3 | labels: question 4 | about: Have any questions regarding how to use brook? 5 | ``` 6 | 7 | ### Prerequisites 8 | 9 | * [ ] Did you check the [wiki](https://github.com/txthinking/brook/wiki)? 10 | * [ ] Did you search in [issues](https://github.com/txthinking/brook/issues)? 11 | * [ ] I will write this according to this template. 12 | * [ ] I will write this in English. 13 | 14 | ### Environment 15 | 16 | * Brook Version: 17 | * Operating System: 18 | * Operating System Version: 19 | * Operation System Language: 20 | 21 | ### Question 22 | 23 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/question.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Question 3 | about: Have any questions regarding how to use Brook? 4 | title: '' 5 | labels: question 6 | assignees: '' 7 | 8 | --- 9 | 10 | ### Prerequisites 11 | 12 | * [ ] Did you check the [wiki](https://github.com/txthinking/brook/wiki)? 13 | * [ ] Did you search in [issues](https://github.com/txthinking/brook/issues)? 14 | * [ ] Are you running the latest version? 15 | * [ ] I will write this according to this template. 16 | * [ ] I will write this in English. 17 | 18 | ### Environment 19 | 20 | * Brook Version: 21 | * Server Operating System: 22 | * Server Operating System Version: 23 | * Server Operation System Language: 24 | * Client Operating System: 25 | * Client Operating System Version: 26 | * Client Operation System Language: 27 | 28 | ### Expected Behavior 29 | 30 | ### Current Behavior 31 | 32 | ### Detailed Description 33 | 34 | ### Possible Solution 35 | 36 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/feature_request.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Feature request 3 | about: Want us to add something to Brook? 4 | title: '' 5 | labels: enhancement 6 | assignees: '' 7 | 8 | --- 9 | 10 | ### Prerequisites 11 | 12 | * [ ] Did you check the [wiki](https://github.com/txthinking/brook/wiki)? 13 | * [ ] Did you search in [issues](https://github.com/txthinking/brook/issues)? 14 | * [ ] Are you running the latest version? 15 | * [ ] I will write this according to this template. 16 | * [ ] I will write this in English. 17 | 18 | ### Environment 19 | 20 | * Brook Version: 21 | * Server Operating System: 22 | * Server Operating System Version: 23 | * Server Operation System Language: 24 | * Client Operating System: 25 | * Client Operating System Version: 26 | * Client Operation System Language: 27 | 28 | ### Expected Behavior 29 | 30 | ### Current Behavior 31 | 32 | ### Detailed Description 33 | 34 | ### Possible Solution 35 | 36 | -------------------------------------------------------------------------------- /cli/brook/buildAll.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | GOOS=linux GOARCH=amd64 go build -o brook . 4 | GOOS=linux GOARCH=386 go build -o brook_linux_386 . 5 | GOOS=linux GOARCH=arm64 go build -o brook_linux_arm64 . 6 | GOOS=linux GOARCH=arm GOARM=7 go build -o brook_linux_arm7 . 7 | GOOS=linux GOARCH=arm GOARM=6 go build -o brook_linux_arm6 . 8 | GOOS=linux GOARCH=arm GOARM=5 go build -o brook_linux_arm5 . 9 | GOOS=linux GOARCH=mips go build -o brook_linux_mips . 10 | GOOS=linux GOARCH=mipsle go build -o brook_linux_mipsle . 11 | GOOS=linux GOARCH=mips64 go build -o brook_linux_mips64 . 12 | GOOS=linux GOARCH=mips64le go build -o brook_linux_mips64le . 13 | GOOS=linux GOARCH=ppc64 go build -o brook_linux_ppc64 . 14 | GOOS=linux GOARCH=ppc64le go build -o brook_linux_ppc64le . 15 | GOOS=darwin GOARCH=amd64 go build -o brook_darwin_amd64 . 16 | GOOS=windows GOARCH=amd64 go build -o brook_windows_amd64.exe . 17 | GOOS=windows GOARCH=386 go build -o brook_windows_386.exe . 18 | -------------------------------------------------------------------------------- /.github/ISSUE_TEMPLATE/bug_report.md: -------------------------------------------------------------------------------- 1 | --- 2 | name: Bug report 3 | about: Did something not work as expected? 4 | title: '' 5 | labels: '' 6 | assignees: '' 7 | 8 | --- 9 | 10 | ### Prerequisites 11 | 12 | * [ ] Did you check the [wiki](https://github.com/txthinking/brook/wiki)? 13 | * [ ] Did you search in [issues](https://github.com/txthinking/brook/issues)? 14 | * [ ] Are you running the latest version? 15 | * [ ] I will write this according to this template. 16 | * [ ] I will write this in English. 17 | 18 | ### Environment 19 | 20 | * Brook Version: 21 | * Server Operating System: 22 | * Server Operating System Version: 23 | * Server Operation System Language: 24 | * Client Operating System: 25 | * Client Operating System Version: 26 | * Client Operation System Language: 27 | 28 | ### Expected Behavior 29 | 30 | ### Current Behavior 31 | 32 | ### Steps to Reproduce 33 | 34 | 1. 35 | 2. 36 | 3. 37 | 38 | ### Detailed Description 39 | 40 | ### Possible Solution 41 | 42 | -------------------------------------------------------------------------------- /plugin/middleman.go: -------------------------------------------------------------------------------- 1 | package plugin 2 | 3 | import ( 4 | "net" 5 | 6 | "github.com/txthinking/socks5" 7 | ) 8 | 9 | // Socks5Middleman is a middleman who can intercept and handle request 10 | type Socks5Middleman interface { 11 | // TCPRequestHandle does not need to close conn, 12 | // if return true that means the request has been handled 13 | TCPHandle(*socks5.Server, *net.TCPConn, *socks5.Request) (bool, error) 14 | 15 | // UDPPacketHandle handles udp packet. 16 | // If return true that means the request has been handled. 17 | UDPHandle(*socks5.Server, *net.UDPAddr, *socks5.Datagram) (bool, error) 18 | } 19 | 20 | // HTTPMiddleman is a middleman who can intercept and handle request 21 | type HTTPMiddleman interface { 22 | // Addr is the absoluteURI, RFC 2396. 23 | // Request is the http header, don't guarantee it is complete, but contains the host line 24 | // Has not written anything to conn. 25 | // Handle does not need to close conn. 26 | // If handled is true or err is not nil that means the request has been handled 27 | Handle(method, addr string, request []byte, conn *net.TCPConn) (handled bool, err error) 28 | } 29 | -------------------------------------------------------------------------------- /scripts/iptables.sh: -------------------------------------------------------------------------------- 1 | #!/bin/bash 2 | 3 | sudo sysctl -w net.ipv4.ip_forward=1 4 | sudo sysctl -w net.ipv6.conf.all.forwarding=1 5 | 6 | sudo iptables -t mangle -F 7 | sudo iptables -t mangle -X 8 | 9 | sudo iptables -t mangle -A PREROUTING -d 0.0.0.0/8 -j RETURN 10 | sudo iptables -t mangle -A PREROUTING -d 10.0.0.0/8 -j RETURN 11 | sudo iptables -t mangle -A PREROUTING -d 127.0.0.0/8 -j RETURN 12 | sudo iptables -t mangle -A PREROUTING -d 169.254.0.0/16 -j RETURN 13 | sudo iptables -t mangle -A PREROUTING -d 172.16.0.0/12 -j RETURN 14 | sudo iptables -t mangle -A PREROUTING -d 192.168.0.0/16 -j RETURN 15 | sudo iptables -t mangle -A PREROUTING -d 224.0.0.0/4 -j RETURN 16 | sudo iptables -t mangle -A PREROUTING -d 240.0.0.0/4 -j RETURN 17 | sudo iptables -t mangle -A PREROUTING -d BROOK_SERVER_IP -j RETURN 18 | 19 | sudo iptables -t mangle -A PREROUTING -p tcp -m socket -j MARK --set-mark 1 20 | sudo iptables -t mangle -A PREROUTING -p tcp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 1080 21 | sudo iptables -t mangle -A PREROUTING -p udp -m socket -j MARK --set-mark 1 22 | sudo iptables -t mangle -A PREROUTING -p udp -j TPROXY --tproxy-mark 0x1/0x1 --on-port 1080 23 | -------------------------------------------------------------------------------- /sysproxy/system_linux.go: -------------------------------------------------------------------------------- 1 | package sysproxy 2 | 3 | import ( 4 | "errors" 5 | "os" 6 | "os/exec" 7 | "regexp" 8 | ) 9 | 10 | // GetNetworkInterfaces returns interface list 11 | func GetNetworkInterfaces() ([]string, error) { 12 | return []string{}, nil 13 | } 14 | 15 | func TurnOnSystemProxy(pac string) error { 16 | return nil 17 | } 18 | 19 | func TurnOffSystemProxy() error { 20 | return nil 21 | } 22 | 23 | // SetDNSServer used to set system DNS server 24 | func SetDNSServer(server string) error { 25 | f, err := os.OpenFile("/etc/resolv.conf", os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644) 26 | if err != nil { 27 | return err 28 | } 29 | defer f.Close() 30 | _, err = f.WriteString("nameserver " + server) 31 | if err != nil { 32 | return err 33 | } 34 | return nil 35 | } 36 | 37 | // GetDefaultGateway returns default gateway 38 | func GetDefaultGateway() (string, error) { 39 | c := exec.Command("ip", "route") 40 | out, err := c.CombinedOutput() 41 | if err != nil { 42 | return "", errors.New(string(out) + err.Error()) 43 | } 44 | r, err := regexp.Compile(`default.*?(\d+.\d+\.\d+\.\d+)`) 45 | if err != nil { 46 | return "", err 47 | } 48 | ss := r.FindStringSubmatch(string(out)) 49 | if len(ss) == 0 { 50 | return "", errors.New("Can not find default gateway") 51 | } 52 | return ss[1], nil 53 | } 54 | -------------------------------------------------------------------------------- /vpn_linux.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "os/exec" 6 | 7 | "github.com/txthinking/brook/sysproxy" 8 | ) 9 | 10 | // AddRoutes adds routes 11 | func (v *VPN) AddRoutes() error { 12 | c := exec.Command("ip", "route", "add", "0.0.0.0/1", "via", v.TunGateway) 13 | if out, err := c.CombinedOutput(); err != nil { 14 | return errors.New(string(out) + err.Error()) 15 | } 16 | c = exec.Command("ip", "route", "add", "128.0.0.0/1", "via", v.TunGateway) 17 | if out, err := c.CombinedOutput(); err != nil { 18 | return errors.New(string(out) + err.Error()) 19 | } 20 | gw, err := sysproxy.GetDefaultGateway() 21 | if err != nil { 22 | return err 23 | } 24 | c = exec.Command("ip", "route", "add", v.ServerIP, "via", gw) 25 | if out, err := c.CombinedOutput(); err != nil { 26 | return errors.New(string(out) + err.Error()) 27 | } 28 | return nil 29 | } 30 | 31 | // DeleteRoutes deletes routes 32 | func (v *VPN) DeleteRoutes() error { 33 | c := exec.Command("ip", "route", "del", "0.0.0.0/1", "via", v.TunGateway) 34 | if out, err := c.CombinedOutput(); err != nil { 35 | return errors.New(string(out) + err.Error()) 36 | } 37 | c = exec.Command("ip", "route", "del", "128.0.0.0/1", "via", v.TunGateway) 38 | if out, err := c.CombinedOutput(); err != nil { 39 | return errors.New(string(out) + err.Error()) 40 | } 41 | gw, err := sysproxy.GetDefaultGateway() 42 | if err != nil { 43 | return err 44 | } 45 | c = exec.Command("ip", "route", "del", v.ServerIP, "via", gw) 46 | if out, err := c.CombinedOutput(); err != nil { 47 | return errors.New(string(out) + err.Error()) 48 | } 49 | return nil 50 | } 51 | -------------------------------------------------------------------------------- /vpn_darwin.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "os/exec" 6 | 7 | "github.com/txthinking/brook/sysproxy" 8 | ) 9 | 10 | // AddRoutes adds routes 11 | func (v *VPN) AddRoutes() error { 12 | c := exec.Command("route", "add", "-net", "0.0.0.0", v.TunGateway, "-netmask", "128.0.0.0") 13 | if out, err := c.CombinedOutput(); err != nil { 14 | return errors.New(string(out) + err.Error()) 15 | } 16 | c = exec.Command("route", "add", "-net", "128.0.0.0", v.TunGateway, "-netmask", "128.0.0.0") 17 | if out, err := c.CombinedOutput(); err != nil { 18 | return errors.New(string(out) + err.Error()) 19 | } 20 | gw, err := sysproxy.GetDefaultGateway() 21 | if err != nil { 22 | return err 23 | } 24 | c = exec.Command("route", "add", "-host", v.ServerIP, gw, "-netmask", "255.255.255.255") 25 | if out, err := c.CombinedOutput(); err != nil { 26 | return errors.New(string(out) + err.Error()) 27 | } 28 | return nil 29 | } 30 | 31 | // DeleteRoutes deletes routes 32 | func (v *VPN) DeleteRoutes() error { 33 | c := exec.Command("route", "delete", "-net", "0.0.0.0", v.TunGateway, "-netmask", "128.0.0.0") 34 | if out, err := c.CombinedOutput(); err != nil { 35 | return errors.New(string(out) + err.Error()) 36 | } 37 | c = exec.Command("route", "delete", "-net", "128.0.0.0", v.TunGateway, "-netmask", "128.0.0.0") 38 | if out, err := c.CombinedOutput(); err != nil { 39 | return errors.New(string(out) + err.Error()) 40 | } 41 | gw, err := sysproxy.GetDefaultGateway() 42 | if err != nil { 43 | return err 44 | } 45 | c = exec.Command("route", "delete", "-host", v.ServerIP, gw, "-netmask", "255.255.255.255") 46 | if out, err := c.CombinedOutput(); err != nil { 47 | return errors.New(string(out) + err.Error()) 48 | } 49 | return nil 50 | } 51 | -------------------------------------------------------------------------------- /cipher.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "crypto/aes" 5 | "crypto/cipher" 6 | "errors" 7 | "net" 8 | "time" 9 | 10 | "github.com/txthinking/x" 11 | ) 12 | 13 | // CipherConn is the encrypted connection 14 | type CipherConn struct { 15 | c net.Conn 16 | sr cipher.StreamReader 17 | sw cipher.StreamWriter 18 | } 19 | 20 | // NewCipherConn returns a new CipherConn, iv length must be equal aes.BlockSize 21 | func NewCipherConn(c net.Conn, key []byte, iv []byte) (*CipherConn, error) { 22 | if len(iv) != aes.BlockSize { 23 | return nil, errors.New("Invalid IV length") 24 | } 25 | block, err := aes.NewCipher(x.AESMake256Key(key)) 26 | if err != nil { 27 | return nil, err 28 | } 29 | return &CipherConn{ 30 | c: c, 31 | sr: cipher.StreamReader{ 32 | S: cipher.NewCFBDecrypter(block, iv), 33 | R: c, 34 | }, 35 | sw: cipher.StreamWriter{ 36 | S: cipher.NewCFBEncrypter(block, iv), 37 | W: c, 38 | }, 39 | }, nil 40 | } 41 | 42 | // Read is just like net.Conn interface 43 | func (c *CipherConn) Read(b []byte) (n int, err error) { 44 | return c.sr.Read(b) 45 | } 46 | 47 | // Write is just like net.Conn interface 48 | func (c *CipherConn) Write(b []byte) (n int, err error) { 49 | return c.sw.Write(b) 50 | } 51 | 52 | // Close is just like net.Conn interface 53 | func (c *CipherConn) Close() error { 54 | return c.c.Close() 55 | } 56 | 57 | // LocalAddr is just like net.Conn interface 58 | func (c *CipherConn) LocalAddr() net.Addr { 59 | return c.c.LocalAddr() 60 | } 61 | 62 | // RemoteAddr is just like net.Conn interface 63 | func (c *CipherConn) RemoteAddr() net.Addr { 64 | return c.c.RemoteAddr() 65 | } 66 | 67 | // SetDeadline is just like net.Conn interface 68 | func (c *CipherConn) SetDeadline(t time.Time) error { 69 | return c.c.SetDeadline(t) 70 | } 71 | 72 | // SetReadDeadline is just like net.Conn interface 73 | func (c *CipherConn) SetReadDeadline(t time.Time) error { 74 | return c.c.SetReadDeadline(t) 75 | } 76 | 77 | // SetWriteDeadline is just like net.Conn interface 78 | func (c *CipherConn) SetWriteDeadline(t time.Time) error { 79 | return c.c.SetWriteDeadline(t) 80 | } 81 | -------------------------------------------------------------------------------- /vpn_windows.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "os/exec" 6 | "syscall" 7 | 8 | "github.com/txthinking/brook/sysproxy" 9 | ) 10 | 11 | // AddRoutes adds routes 12 | func (v *VPN) AddRoutes() error { 13 | c := exec.Command("route", "add", "0.0.0.0", "mask", "128.0.0.0", v.TunGateway) 14 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 15 | if out, err := c.CombinedOutput(); err != nil { 16 | return errors.New(string(out) + err.Error()) 17 | } 18 | c = exec.Command("route", "add", "128.0.0.0", "mask", "128.0.0.0", v.TunGateway) 19 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 20 | if out, err := c.CombinedOutput(); err != nil { 21 | return errors.New(string(out) + err.Error()) 22 | } 23 | if v.DefaultGateway == "" { 24 | var err error 25 | v.DefaultGateway, err = sysproxy.GetDefaultGateway() 26 | if err != nil { 27 | return err 28 | } 29 | } 30 | c = exec.Command("route", "add", v.ServerIP, "mask", "255.255.255.255", v.DefaultGateway, "metric", "1") 31 | if out, err := c.CombinedOutput(); err != nil { 32 | return errors.New(string(out) + err.Error()) 33 | } 34 | return nil 35 | } 36 | 37 | // DeleteRoutes deletes routes 38 | func (v *VPN) DeleteRoutes() error { 39 | c := exec.Command("route", "delete", "0.0.0.0", "mask", "128.0.0.0", v.TunGateway) 40 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 41 | if out, err := c.CombinedOutput(); err != nil { 42 | return errors.New(string(out) + err.Error()) 43 | } 44 | c = exec.Command("route", "delete", "128.0.0.0", "mask", "128.0.0.0", v.TunGateway) 45 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 46 | if out, err := c.CombinedOutput(); err != nil { 47 | return errors.New(string(out) + err.Error()) 48 | } 49 | if v.DefaultGateway == "" { 50 | var err error 51 | v.DefaultGateway, err = sysproxy.GetDefaultGateway() 52 | if err != nil { 53 | return err 54 | } 55 | } 56 | c = exec.Command("route", "delete", v.ServerIP, "mask", "255.255.255.255", v.DefaultGateway, "metric", "1") 57 | if out, err := c.CombinedOutput(); err != nil { 58 | return errors.New(string(out) + err.Error()) 59 | } 60 | return nil 61 | } 62 | -------------------------------------------------------------------------------- /sysproxy/system_darwin.go: -------------------------------------------------------------------------------- 1 | package sysproxy 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "os/exec" 7 | "regexp" 8 | ) 9 | 10 | // GetNetworkInterfaces returns interface list 11 | func GetNetworkInterfaces() ([]string, error) { 12 | c := exec.Command("networksetup", "-listallnetworkservices") 13 | out, err := c.CombinedOutput() 14 | if err != nil { 15 | return nil, errors.New(string(out) + err.Error()) 16 | } 17 | nss := make([]string, 0) 18 | reg := regexp.MustCompile(`\d+\.\d+\.\d+\.\d+`) 19 | for _, v := range bytes.Split(bytes.TrimSpace(out), []byte("\n")) { 20 | // An asterisk (*) denotes that a network service is disabled. 21 | if bytes.Contains(v, []byte("*")) { 22 | continue 23 | } 24 | ns := string(bytes.TrimSpace(v)) 25 | c := exec.Command("networksetup", "-getinfo", ns) 26 | out, err := c.CombinedOutput() 27 | if err != nil { 28 | return nil, errors.New(string(out) + err.Error()) 29 | } 30 | if !reg.MatchString(string(out)) { 31 | continue 32 | } 33 | nss = append(nss, ns) 34 | } 35 | if len(nss) == 0 { 36 | return nil, errors.New("no available network service") 37 | } 38 | return nss, nil 39 | } 40 | 41 | // TurnOnSystemProxy used to enable system pac proxy, pac is a URL. 42 | func TurnOnSystemProxy(pac string) error { 43 | nss, err := GetNetworkInterfaces() 44 | if err != nil { 45 | return err 46 | } 47 | for _, v := range nss { 48 | c := exec.Command("networksetup", "-setautoproxyurl", v, pac) 49 | if out, err := c.CombinedOutput(); err != nil { 50 | return errors.New(string(out) + err.Error()) 51 | } 52 | c = exec.Command("networksetup", "-setautoproxystate", v, "on") 53 | if out, err := c.CombinedOutput(); err != nil { 54 | return errors.New(string(out) + err.Error()) 55 | } 56 | } 57 | return nil 58 | } 59 | 60 | // TurnOffSystemProxy used to disable system pac proxy 61 | func TurnOffSystemProxy() error { 62 | nss, err := GetNetworkInterfaces() 63 | if err != nil { 64 | return err 65 | } 66 | for _, v := range nss { 67 | c := exec.Command("networksetup", "-setautoproxystate", v, "off") 68 | if out, err := c.CombinedOutput(); err != nil { 69 | return errors.New(string(out) + err.Error()) 70 | } 71 | } 72 | return nil 73 | } 74 | 75 | // SetDNSServer used to set system DNS server 76 | func SetDNSServer(server string) error { 77 | nis, err := GetNetworkInterfaces() 78 | if err != nil { 79 | return err 80 | } 81 | for _, v := range nis { 82 | c := exec.Command("networksetup", "-setdnsservers", v, server) 83 | if out, err := c.CombinedOutput(); err != nil { 84 | return errors.New(string(out) + err.Error()) 85 | } 86 | } 87 | return nil 88 | } 89 | 90 | // GetDefaultGateway returns default gateway 91 | func GetDefaultGateway() (string, error) { 92 | c := exec.Command("sh", "-c", "route get default | grep gateway | awk '{print $2}'") 93 | out, err := c.CombinedOutput() 94 | if err != nil { 95 | return "", errors.New(string(out) + err.Error()) 96 | } 97 | return string(out), nil 98 | } 99 | -------------------------------------------------------------------------------- /tproxy/tcp.go: -------------------------------------------------------------------------------- 1 | package tproxy 2 | 3 | import ( 4 | "net" 5 | "os" 6 | "strconv" 7 | "strings" 8 | "syscall" 9 | 10 | "github.com/txthinking/x" 11 | ) 12 | 13 | func ListenTCP(network string, laddr *net.TCPAddr) (*net.TCPListener, error) { 14 | l, err := net.ListenTCP(network, laddr) 15 | if err != nil { 16 | return nil, err 17 | } 18 | defer l.Close() 19 | 20 | f, err := l.File() 21 | if err != nil { 22 | return nil, err 23 | } 24 | defer f.Close() 25 | fd := int(f.Fd()) 26 | if err := syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil { 27 | return nil, err 28 | } 29 | tmp, err := net.FileListener(f) 30 | if err != nil { 31 | return nil, err 32 | } 33 | return tmp.(*net.TCPListener), nil 34 | } 35 | 36 | func DialTCP(network, addr string) (net.Conn, error) { 37 | taddr, err := net.ResolveTCPAddr("tcp", addr) 38 | if err != nil { 39 | return nil, err 40 | } 41 | saddr, err := tcpAddrToSocketAddr(taddr) 42 | if err != nil { 43 | return nil, err 44 | } 45 | fd, err := syscall.Socket(tcpAddrFamily("tcp", taddr, nil), syscall.SOCK_STREAM, syscall.IPPROTO_TCP) 46 | if err != nil { 47 | return nil, err 48 | } 49 | if err := syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1); err != nil { 50 | syscall.Close(fd) 51 | return nil, err 52 | } 53 | if err := syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil { 54 | syscall.Close(fd) 55 | return nil, err 56 | } 57 | if err := syscall.SetNonblock(fd, true); err != nil { 58 | syscall.Close(fd) 59 | return nil, err 60 | } 61 | if err = syscall.Connect(fd, saddr); err != nil && !strings.Contains(err.Error(), "operation now in progress") { 62 | syscall.Close(fd) 63 | return nil, err 64 | } 65 | 66 | f := os.NewFile(uintptr(fd), string(x.RandomNumber())) 67 | defer f.Close() 68 | 69 | c, err := net.FileConn(f) 70 | if err != nil { 71 | syscall.Close(fd) 72 | return nil, err 73 | } 74 | return c, nil 75 | } 76 | 77 | func tcpAddrToSocketAddr(addr *net.TCPAddr) (syscall.Sockaddr, error) { 78 | switch { 79 | case addr.IP.To4() != nil: 80 | ip := [4]byte{} 81 | copy(ip[:], addr.IP.To4()) 82 | 83 | return &syscall.SockaddrInet4{Addr: ip, Port: addr.Port}, nil 84 | 85 | default: 86 | ip := [16]byte{} 87 | copy(ip[:], addr.IP.To16()) 88 | 89 | zoneID, err := strconv.ParseUint(addr.Zone, 10, 32) 90 | if err != nil { 91 | return nil, err 92 | } 93 | 94 | return &syscall.SockaddrInet6{Addr: ip, Port: addr.Port, ZoneId: uint32(zoneID)}, nil 95 | } 96 | } 97 | 98 | func tcpAddrFamily(net string, laddr, raddr *net.TCPAddr) int { 99 | switch net[len(net)-1] { 100 | case '4': 101 | return syscall.AF_INET 102 | case '6': 103 | return syscall.AF_INET6 104 | } 105 | 106 | if (laddr == nil || laddr.IP.To4() != nil) && 107 | (raddr == nil || raddr.IP.To4() != nil) { 108 | return syscall.AF_INET 109 | } 110 | return syscall.AF_INET6 111 | } 112 | -------------------------------------------------------------------------------- /vpn.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "fmt" 6 | "log" 7 | "net" 8 | "os" 9 | "os/signal" 10 | "syscall" 11 | 12 | "github.com/txthinking/brook/sysproxy" 13 | "github.com/txthinking/gotun2socks" 14 | "github.com/txthinking/gotun2socks/tun" 15 | ) 16 | 17 | // VPN 18 | type VPN struct { 19 | Client *Client 20 | Tunnel *Tunnel 21 | Tun *gotun2socks.Tun2Socks 22 | ServerIP string 23 | TunGateway string 24 | DefaultGateway string 25 | } 26 | 27 | // NewVPN 28 | func NewVPN(addr, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int, tunDevice, tunIP, tunGateway, tunMask, defaultGateway string) (*VPN, error) { 29 | h, _, err := net.SplitHostPort(addr) 30 | if err != nil { 31 | return nil, err 32 | } 33 | if h != "127.0.0.1" { 34 | return nil, errors.New("Must listen on 127.0.0.1") 35 | } 36 | h, p, err := net.SplitHostPort(server) 37 | if err != nil { 38 | return nil, err 39 | } 40 | l, err := net.LookupIP(h) 41 | if err != nil { 42 | return nil, err 43 | } 44 | s := "" 45 | for _, v := range l { 46 | if v.To4() == nil { 47 | continue 48 | } 49 | s = v.String() 50 | break 51 | } 52 | if s == "" { 53 | return nil, errors.New("Can not find server v4 IP") 54 | } 55 | server = net.JoinHostPort(s, p) 56 | 57 | c, err := NewClient(addr, "127.0.0.1", server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 58 | if err != nil { 59 | return nil, err 60 | } 61 | tl, err := NewTunnel("127.0.0.1:53", "8.8.8.8:53", server, password, tcpTimeout, tcpDeadline, udpDeadline) 62 | if err != nil { 63 | return nil, err 64 | } 65 | f, err := tun.OpenTunDevice(tunDevice, tunIP, tunGateway, tunMask, []string{"8.8.8.8"}) 66 | if err != nil { 67 | return nil, err 68 | } 69 | t := gotun2socks.New(f, addr, []string{"8.8.8.8"}, true, true) 70 | return &VPN{ 71 | Client: c, 72 | Tunnel: tl, 73 | Tun: t, 74 | ServerIP: s, 75 | TunGateway: tunGateway, 76 | DefaultGateway: defaultGateway, 77 | }, nil 78 | } 79 | 80 | // ListenAndServe starts to run VPN 81 | func (v *VPN) ListenAndServe() error { 82 | if err := sysproxy.SetDNSServer("127.0.0.1"); err != nil { 83 | return err 84 | } 85 | if err := v.AddRoutes(); err != nil { 86 | return err 87 | } 88 | 89 | errch := make(chan error) 90 | go func() { 91 | errch <- v.Client.ListenAndServe() 92 | }() 93 | go func() { 94 | errch <- v.Tunnel.ListenAndServe() 95 | }() 96 | go func() { 97 | v.Tun.Run() 98 | }() 99 | go func() { 100 | sigs := make(chan os.Signal, 1) 101 | signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP, syscall.SIGQUIT) 102 | <-sigs 103 | errch <- nil 104 | }() 105 | fmt.Println("Ctrl-C to quit") 106 | 107 | err := <-errch 108 | if err := v.Shutdown(); err != nil { 109 | return err 110 | } 111 | return err 112 | } 113 | 114 | // Shutdown stops VPN 115 | func (v *VPN) Shutdown() error { 116 | fmt.Println("Quitting...") 117 | if err := sysproxy.SetDNSServer("8.8.8.8"); err != nil { 118 | log.Println(err) 119 | } 120 | if err := v.DeleteRoutes(); err != nil { 121 | log.Println(err) 122 | } 123 | if v.Client != nil { 124 | if err := v.Client.Shutdown(); err != nil { 125 | log.Println(err) 126 | } 127 | } 128 | if v.Tunnel != nil { 129 | if err := v.Tunnel.Shutdown(); err != nil { 130 | log.Println(err) 131 | } 132 | } 133 | if v.Tun != nil { 134 | // v.Tun.Stop() 135 | } 136 | return nil 137 | } 138 | -------------------------------------------------------------------------------- /encrypt.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "bytes" 5 | "encoding/binary" 6 | "errors" 7 | "io" 8 | "net" 9 | "strconv" 10 | "time" 11 | 12 | "github.com/txthinking/socks5" 13 | "github.com/txthinking/x" 14 | ) 15 | 16 | // IncrementNonce loves your compute to use Litter Endian 17 | func IncrementNonce(n []byte) []byte { 18 | i := int(binary.LittleEndian.Uint16(n)) 19 | i += 1 20 | n = make([]byte, 12) 21 | binary.LittleEndian.PutUint16(n, uint16(i)) 22 | return n 23 | } 24 | 25 | // ReadFrom 26 | func ReadFrom(c *net.TCPConn, k, n []byte, hasTime bool) ([]byte, []byte, error) { 27 | b := make([]byte, 18) 28 | if _, err := io.ReadFull(c, b); err != nil { 29 | return nil, nil, err 30 | } 31 | n = IncrementNonce(n) 32 | d, err := x.AESGCMDecrypt(b, k, n) 33 | if err != nil { 34 | return nil, nil, err 35 | } 36 | 37 | l := int(binary.BigEndian.Uint16(d)) 38 | b = make([]byte, l) 39 | if _, err := io.ReadFull(c, b); err != nil { 40 | return nil, nil, err 41 | } 42 | n = IncrementNonce(n) 43 | d, err = x.AESGCMDecrypt(b, k, n) 44 | if err != nil { 45 | return nil, nil, err 46 | } 47 | 48 | if hasTime { 49 | i, err := strconv.Atoi(string(d[0:10])) 50 | if err != nil { 51 | return nil, nil, err 52 | } 53 | if time.Now().Unix()-int64(i) > 90 { 54 | time.Sleep(time.Duration(x.Random(1, 60*10)) * time.Second) 55 | return nil, nil, errors.New("Expired request") 56 | } 57 | d = d[10:] 58 | } 59 | return d, n, nil 60 | } 61 | 62 | // WriteTo 63 | func WriteTo(c *net.TCPConn, d, k, n []byte, needTime bool) ([]byte, error) { 64 | if needTime { 65 | d = append(bytes.NewBufferString(strconv.Itoa(int(time.Now().Unix()))).Bytes(), d...) 66 | } 67 | 68 | i := len(d) + 16 69 | bb := make([]byte, 2) 70 | binary.BigEndian.PutUint16(bb, uint16(i)) 71 | n = IncrementNonce(n) 72 | b, err := x.AESGCMEncrypt(bb, k, n) 73 | if err != nil { 74 | return nil, err 75 | } 76 | if _, err := c.Write(b); err != nil { 77 | return nil, err 78 | } 79 | 80 | n = IncrementNonce(n) 81 | b, err = x.AESGCMEncrypt(d, k, n) 82 | if err != nil { 83 | return nil, err 84 | } 85 | if _, err := c.Write(b); err != nil { 86 | return nil, err 87 | } 88 | return n, nil 89 | } 90 | 91 | // PrepareKey 92 | func PrepareKey(p []byte) ([]byte, []byte, error) { 93 | return x.HkdfSha256RandomSalt(p, []byte{0x62, 0x72, 0x6f, 0x6f, 0x6b}, 12) 94 | } 95 | 96 | // GetKey 97 | func GetKey(p, n []byte) ([]byte, error) { 98 | return x.HkdfSha256WithSalt(p, n, []byte{0x62, 0x72, 0x6f, 0x6f, 0x6b}) 99 | } 100 | 101 | // Encrypt data 102 | func Encrypt(p, b []byte) ([]byte, error) { 103 | b = append(bytes.NewBufferString(strconv.Itoa(int(time.Now().Unix()))).Bytes(), b...) 104 | k, n, err := PrepareKey(p) 105 | if err != nil { 106 | return nil, err 107 | } 108 | b, err = x.AESGCMEncrypt(b, k, n) 109 | if err != nil { 110 | return nil, err 111 | } 112 | b = append(n, b...) 113 | return b, nil 114 | } 115 | 116 | // Decrypt data 117 | func Decrypt(p, b []byte) (a byte, addr, port, data []byte, err error) { 118 | err = errors.New("Data length error") 119 | if len(b) <= 12+16 { 120 | return 121 | } 122 | k, err := GetKey(p, b[0:12]) 123 | bb, err := x.AESGCMDecrypt(b[12:], k, b[0:12]) 124 | if err != nil { 125 | return 126 | } 127 | i, err := strconv.Atoi(string(bb[0:10])) 128 | if err != nil { 129 | return 130 | } 131 | if time.Now().Unix()-int64(i) > 90 { 132 | time.Sleep(time.Duration(x.Random(1, 60*10)) * time.Second) 133 | err = errors.New("Expired request") 134 | return 135 | } 136 | bb = bb[10:] 137 | a = bb[0] 138 | if a == socks5.ATYPIPv4 { 139 | addr = bb[1:5] 140 | port = bb[5:7] 141 | data = bb[7:] 142 | } else if a == socks5.ATYPIPv6 { 143 | addr = bb[1:17] 144 | port = bb[17:19] 145 | data = bb[19:] 146 | } else if a == socks5.ATYPDomain { 147 | l := int(bb[1]) 148 | addr = bb[1 : 1+l] 149 | port = bb[1+l : 1+l+2] 150 | data = bb[1+l+2:] 151 | } else { 152 | return 153 | } 154 | err = nil 155 | return 156 | } 157 | -------------------------------------------------------------------------------- /sysproxy/system_windows.go: -------------------------------------------------------------------------------- 1 | package sysproxy 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "net" 7 | "os/exec" 8 | "regexp" 9 | "syscall" 10 | ) 11 | 12 | // TurnOnSystemProxy used to enable system pac proxy, pac is a URL. 13 | func TurnOnSystemProxy(pac string) error { 14 | c := exec.Command(`reg`, `add`, `HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings`, `/v`, `AutoConfigURL`, `/t`, `REG_SZ`, `/d`, pac, `/f`) 15 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 16 | if out, err := c.CombinedOutput(); err != nil { 17 | return errors.New(string(out) + err.Error()) 18 | } 19 | c = exec.Command(`reg`, `add`, `HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings`, `/v`, `ProxyEnable`, `/t`, `REG_DWORD`, `/d`, `0`, `/f`) 20 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 21 | if out, err := c.CombinedOutput(); err != nil { 22 | return errors.New(string(out) + err.Error()) 23 | } 24 | if err := reloadWinProxy(); err != nil { 25 | return err 26 | } 27 | return nil 28 | } 29 | 30 | // TurnOffSystemProxy used to disable system pac proxy 31 | func TurnOffSystemProxy() error { 32 | c := exec.Command(`reg`, `query`, `HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings`) 33 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 34 | out, err := c.CombinedOutput() 35 | if err != nil { 36 | return errors.New("Can not query proxy settings: " + err.Error()) 37 | } 38 | if bytes.Contains(bytes.ToLower(out), []byte("autoconfigurl")) { 39 | c := exec.Command(`reg`, `delete`, `HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings`, `/v`, `AutoConfigURL`, `/f`) 40 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 41 | if out, err := c.CombinedOutput(); err != nil { 42 | return errors.New(string(out) + err.Error()) 43 | } 44 | } 45 | if err := reloadWinProxy(); err != nil { 46 | return err 47 | } 48 | return nil 49 | } 50 | 51 | func reloadWinProxy() error { 52 | h, err := syscall.LoadLibrary("wininet.dll") 53 | if err != nil { 54 | return err 55 | } 56 | f, err := syscall.GetProcAddress(h, "InternetSetOptionW") 57 | if err != nil { 58 | return err 59 | } 60 | ret, _, errno := syscall.Syscall6(uintptr(f), 4, 0, 39, 0, 0, 0, 0) 61 | if ret != 1 { 62 | return errors.New(errno.Error()) 63 | } 64 | ret, _, errno = syscall.Syscall6(uintptr(f), 4, 0, 37, 0, 0, 0, 0) 65 | if ret != 1 { 66 | return errors.New(errno.Error()) 67 | } 68 | return nil 69 | } 70 | 71 | // GetNetworkInterfaces returns interface list 72 | func GetNetworkInterfaces() ([]string, error) { 73 | is, err := net.Interfaces() 74 | if err != nil { 75 | return nil, err 76 | } 77 | nss := make([]string, 0) 78 | for _, v := range is { 79 | nss = append(nss, v.Name) 80 | } 81 | if len(nss) == 0 { 82 | return nil, errors.New("no available network service") 83 | } 84 | return nss, nil 85 | } 86 | 87 | // SetDNSServer used to set system DNS server 88 | func SetDNSServer(server string) error { 89 | nis, err := GetNetworkInterfaces() 90 | if err != nil { 91 | return err 92 | } 93 | for _, v := range nis { 94 | c := exec.Command("netsh", "interface", "ip", "set", "dnsservers", v, "static", server, "primary") 95 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 96 | if out, err := c.CombinedOutput(); err != nil { 97 | return errors.New(string(out) + err.Error()) 98 | } 99 | } 100 | return nil 101 | } 102 | 103 | // GetDefaultGateway returns default gateway 104 | func GetDefaultGateway() (string, error) { 105 | c := exec.Command("netsh", "interface", "ipv4", "show", "address") 106 | c.SysProcAttr = &syscall.SysProcAttr{HideWindow: true} 107 | out, err := c.CombinedOutput() 108 | if err != nil { 109 | return "", errors.New(string(out) + err.Error()) 110 | } 111 | r, err := regexp.Compile(`Default Gateway.*?(\d+.\d+\.\d+\.\d+)`) 112 | if err != nil { 113 | return "", err 114 | } 115 | ss := r.FindStringSubmatch(string(out)) 116 | if len(ss) == 0 { 117 | return "", errors.New("Can not find default gateway") 118 | } 119 | return ss[1], nil 120 | } 121 | -------------------------------------------------------------------------------- /socks5tohttp.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "io" 7 | "log" 8 | "net" 9 | "time" 10 | 11 | "github.com/txthinking/brook/plugin" 12 | "github.com/txthinking/x" 13 | "golang.org/x/net/proxy" 14 | ) 15 | 16 | type Socks5ToHTTP struct { 17 | Addr *net.TCPAddr 18 | Socks5Address string 19 | Dial proxy.Dialer 20 | Timeout int 21 | Deadline int 22 | Listen *net.TCPListener 23 | HTTPMiddleman plugin.HTTPMiddleman 24 | } 25 | 26 | func NewSocks5ToHTTP(addr, socks5addr string, timeout, deadline int) (*Socks5ToHTTP, error) { 27 | dial, err := proxy.SOCKS5("tcp", socks5addr, nil, &net.Dialer{ 28 | Timeout: time.Duration(deadline) * time.Second, 29 | KeepAlive: time.Duration(timeout) * time.Second, 30 | }) 31 | if err != nil { 32 | return nil, err 33 | } 34 | ta, err := net.ResolveTCPAddr("tcp", addr) 35 | if err != nil { 36 | return nil, err 37 | } 38 | return &Socks5ToHTTP{ 39 | Addr: ta, 40 | Socks5Address: socks5addr, 41 | Dial: dial, 42 | Timeout: timeout, 43 | Deadline: deadline, 44 | }, nil 45 | } 46 | 47 | // SetHTTPMiddleman sets httpmiddleman plugin 48 | func (s *Socks5ToHTTP) SetHTTPMiddleman(m plugin.HTTPMiddleman) { 49 | s.HTTPMiddleman = m 50 | } 51 | 52 | func (s *Socks5ToHTTP) ListenAndServe() error { 53 | l, err := net.ListenTCP("tcp", s.Addr) 54 | if err != nil { 55 | return err 56 | } 57 | defer l.Close() 58 | s.Listen = l 59 | for { 60 | c, err := l.AcceptTCP() 61 | if err != nil { 62 | return err 63 | } 64 | go func(c *net.TCPConn) { 65 | defer c.Close() 66 | if s.Timeout != 0 { 67 | if err := c.SetKeepAlivePeriod(time.Duration(s.Timeout) * time.Second); err != nil { 68 | log.Println(err) 69 | return 70 | } 71 | } 72 | if s.Deadline != 0 { 73 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.Deadline) * time.Second)); err != nil { 74 | log.Println(err) 75 | return 76 | } 77 | } 78 | if err := s.Handle(c); err != nil { 79 | log.Println(err) 80 | return 81 | } 82 | }(c) 83 | } 84 | } 85 | 86 | func (s *Socks5ToHTTP) Handle(c *net.TCPConn) error { 87 | b := make([]byte, 0, 1024) 88 | for { 89 | var b1 [1024]byte 90 | n, err := c.Read(b1[:]) 91 | if err != nil { 92 | return err 93 | } 94 | b = append(b, b1[:n]...) 95 | if bytes.Contains(b, []byte{0x0d, 0x0a, 0x0d, 0x0a}) { 96 | break 97 | } 98 | if len(b) >= 2083+18 { 99 | return errors.New("HTTP header too long") 100 | } 101 | } 102 | 103 | bb := bytes.SplitN(b, []byte(" "), 3) 104 | if len(bb) != 3 { 105 | return errors.New("Invalid Request") 106 | } 107 | method, address := string(bb[0]), string(bb[1]) 108 | var addr string 109 | if method == "CONNECT" { 110 | addr = address 111 | } 112 | if method != "CONNECT" { 113 | var err error 114 | addr, err = x.GetAddressFromURL(address) 115 | if err != nil { 116 | return err 117 | } 118 | } 119 | 120 | if s.HTTPMiddleman != nil { 121 | if done, err := s.HTTPMiddleman.Handle(method, addr, b, c); err != nil || done { 122 | return err 123 | } 124 | } 125 | 126 | tmp, err := s.Dial.Dial("tcp", addr) 127 | if err != nil { 128 | return err 129 | } 130 | rc := tmp.(*net.TCPConn) 131 | defer rc.Close() 132 | if s.Timeout != 0 { 133 | if err := rc.SetKeepAlivePeriod(time.Duration(s.Timeout) * time.Second); err != nil { 134 | return err 135 | } 136 | } 137 | if s.Deadline != 0 { 138 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.Deadline) * time.Second)); err != nil { 139 | return err 140 | } 141 | } 142 | if method == "CONNECT" { 143 | _, err := c.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n")) 144 | if err != nil { 145 | return err 146 | } 147 | } 148 | if method != "CONNECT" { 149 | if _, err := rc.Write(b); err != nil { 150 | return err 151 | } 152 | } 153 | // TODO 154 | go func() { 155 | _, _ = io.Copy(rc, c) 156 | }() 157 | _, _ = io.Copy(c, rc) 158 | return nil 159 | } 160 | 161 | func (s *Socks5ToHTTP) Shutdown() error { 162 | if s.Listen == nil { 163 | return nil 164 | } 165 | return s.Listen.Close() 166 | } 167 | -------------------------------------------------------------------------------- /run.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "github.com/txthinking/brook/sysproxy" 5 | ) 6 | 7 | // RunServer used to make a new Server and start to listen 8 | func RunServer(address, password string, tcpTimeout, tcpDeadline, udpDeadline int) error { 9 | s, err := NewServer(address, password, tcpTimeout, tcpDeadline, udpDeadline) 10 | if err != nil { 11 | return err 12 | } 13 | return s.ListenAndServe() 14 | } 15 | 16 | // RunClient used to make a new Client and start a socks5 proxy to listen 17 | func RunClient(address, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) error { 18 | c, err := NewClient(address, ip, server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 19 | if err != nil { 20 | return err 21 | } 22 | return c.ListenAndServe() 23 | } 24 | 25 | // RunClientAsHTTP used to make a new Client and start a http proxy to listen 26 | func RunClientAsHTTP(address, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) error { 27 | c, err := NewClient(address, ip, server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 28 | if err != nil { 29 | return err 30 | } 31 | return c.ListenAndServeHTTP() 32 | } 33 | 34 | // RunTunnel used to start a tunnel 35 | func RunTunnel(address, to, server, password string, tcpTimeout, tcpDeadline, udpDeadline int) error { 36 | c, err := NewTunnel(address, to, server, password, tcpTimeout, tcpDeadline, udpDeadline) 37 | if err != nil { 38 | return err 39 | } 40 | return c.ListenAndServe() 41 | } 42 | 43 | // RunSSServer used to make a new Server and start to listen 44 | func RunSSServer(address, password string, tcpTimeout, tcpDeadline, udpDeadline int) error { 45 | s, err := NewSSServer(address, password, tcpTimeout, tcpDeadline, udpDeadline) 46 | if err != nil { 47 | return err 48 | } 49 | return s.ListenAndServe() 50 | } 51 | 52 | // RunSSClient used to make a new Client and start a socks5 proxy to listen 53 | func RunSSClient(address, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) error { 54 | c, err := NewSSClient(address, ip, server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 55 | if err != nil { 56 | return err 57 | } 58 | return c.ListenAndServe() 59 | } 60 | 61 | // RunSSClientAsHTTP used to make a new Client and start a http proxy to listen 62 | func RunSSClientAsHTTP(address, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) error { 63 | c, err := NewSSClient(address, ip, server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 64 | if err != nil { 65 | return err 66 | } 67 | return c.ListenAndServeHTTP() 68 | } 69 | 70 | // RunRelay used to make a new Relay and start to listen 71 | func RunRelay(address, remote string, tcpTimeout, tcpDeadline, udpDeadline int) error { 72 | r, err := NewRelay(address, remote, tcpTimeout, tcpDeadline, udpDeadline) 73 | if err != nil { 74 | return err 75 | } 76 | return r.ListenAndServe() 77 | } 78 | 79 | // RunSocks5Server used to make a new Socks5Server and start a raw socks5 proxy to listen 80 | func RunSocks5Server(address, ip, username, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) error { 81 | s, err := NewSocks5Server(address, ip, username, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 82 | if err != nil { 83 | return err 84 | } 85 | return s.ListenAndServe() 86 | } 87 | 88 | // RunSocks5ToHTTP used to make a new Socks5ToHTTP and start a http proxy to listen 89 | func RunSocks5ToHTTP(address, socks5 string, timeout, deadline int) error { 90 | s, err := NewSocks5ToHTTP(address, socks5, timeout, deadline) 91 | if err != nil { 92 | return err 93 | } 94 | return s.ListenAndServe() 95 | } 96 | 97 | // RunSystemProxy used to set/remove system proxy 98 | func RunSystemProxy(remove bool, pac string) error { 99 | if remove { 100 | if err := sysproxy.TurnOffSystemProxy(); err != nil { 101 | return err 102 | } 103 | return nil 104 | } 105 | if err := sysproxy.TurnOnSystemProxy(pac); err != nil { 106 | return err 107 | } 108 | return nil 109 | } 110 | 111 | // RunVPN used to make a new VPN and start 112 | func RunVPN(address, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int, tunDevice, tunIP, tunGateway, tunMask, defaultGateway string) error { 113 | v, err := NewVPN(address, server, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime, tunDevice, tunIP, tunGateway, tunMask, defaultGateway) 114 | if err != nil { 115 | return err 116 | } 117 | return v.ListenAndServe() 118 | } 119 | -------------------------------------------------------------------------------- /tproxy/udp.go: -------------------------------------------------------------------------------- 1 | package tproxy 2 | 3 | import ( 4 | "bytes" 5 | "encoding/binary" 6 | "net" 7 | "os" 8 | "strconv" 9 | "syscall" 10 | "unsafe" 11 | 12 | "github.com/txthinking/x" 13 | ) 14 | 15 | func ListenUDP(network string, laddr *net.UDPAddr) (*net.UDPConn, error) { 16 | c, err := net.ListenUDP(network, laddr) 17 | if err != nil { 18 | return nil, err 19 | } 20 | defer c.Close() 21 | 22 | f, err := c.File() 23 | if err != nil { 24 | return nil, err 25 | } 26 | defer f.Close() 27 | 28 | fd := int(f.Fd()) 29 | if err := syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil { 30 | return nil, err 31 | } 32 | if err = syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_RECVORIGDSTADDR, 1); err != nil { 33 | return nil, err 34 | } 35 | tmp, err := net.FileConn(f) 36 | if err != nil { 37 | return nil, err 38 | } 39 | return tmp.(*net.UDPConn), nil 40 | } 41 | 42 | func ReadFromUDP(conn *net.UDPConn, b []byte) (int, *net.UDPAddr, *net.UDPAddr, error) { 43 | oob := make([]byte, 1024) 44 | n, oobn, _, addr, err := conn.ReadMsgUDP(b, oob) 45 | if err != nil { 46 | return 0, nil, nil, err 47 | } 48 | 49 | msgs, err := syscall.ParseSocketControlMessage(oob[:oobn]) 50 | if err != nil { 51 | return 0, nil, nil, err 52 | } 53 | 54 | var originalDst *net.UDPAddr 55 | for _, msg := range msgs { 56 | if msg.Header.Level != syscall.SOL_IP || msg.Header.Type != syscall.IP_RECVORIGDSTADDR { 57 | continue 58 | } 59 | originalDstRaw := &syscall.RawSockaddrInet4{} 60 | if err := binary.Read(bytes.NewReader(msg.Data), binary.LittleEndian, originalDstRaw); err != nil { 61 | return 0, nil, nil, err 62 | } 63 | 64 | switch originalDstRaw.Family { 65 | case syscall.AF_INET: 66 | pp := (*syscall.RawSockaddrInet4)(unsafe.Pointer(originalDstRaw)) 67 | p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 68 | originalDst = &net.UDPAddr{ 69 | IP: net.IPv4(pp.Addr[0], pp.Addr[1], pp.Addr[2], pp.Addr[3]), 70 | Port: int(p[0])<<8 + int(p[1]), 71 | } 72 | case syscall.AF_INET6: 73 | pp := (*syscall.RawSockaddrInet6)(unsafe.Pointer(originalDstRaw)) 74 | p := (*[2]byte)(unsafe.Pointer(&pp.Port)) 75 | originalDst = &net.UDPAddr{ 76 | IP: net.IP(pp.Addr[:]), 77 | Port: int(p[0])<<8 + int(p[1]), 78 | Zone: strconv.Itoa(int(pp.Scope_id)), 79 | } 80 | default: 81 | return 0, nil, nil, nil 82 | } 83 | } 84 | if originalDst == nil { 85 | return 0, nil, nil, nil 86 | } 87 | return n, addr, originalDst, nil 88 | } 89 | 90 | func DialUDP(network string, laddr *net.UDPAddr, raddr *net.UDPAddr) (*net.UDPConn, error) { 91 | remoteSocketAddress, err := udpAddrToSocketAddr(raddr) 92 | if err != nil { 93 | return nil, err 94 | } 95 | 96 | localSocketAddress, err := udpAddrToSocketAddr(laddr) 97 | if err != nil { 98 | return nil, err 99 | } 100 | 101 | fd, err := syscall.Socket(udpAddrFamily(network, laddr, raddr), syscall.SOCK_DGRAM, 0) 102 | if err != nil { 103 | return nil, err 104 | } 105 | 106 | if err := syscall.SetsockoptInt(fd, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1); err != nil { 107 | syscall.Close(fd) 108 | return nil, err 109 | } 110 | 111 | if err := syscall.SetsockoptInt(fd, syscall.SOL_IP, syscall.IP_TRANSPARENT, 1); err != nil { 112 | syscall.Close(fd) 113 | return nil, err 114 | } 115 | 116 | if err := syscall.Bind(fd, localSocketAddress); err != nil { 117 | syscall.Close(fd) 118 | return nil, err 119 | } 120 | 121 | if err := syscall.Connect(fd, remoteSocketAddress); err != nil { 122 | syscall.Close(fd) 123 | return nil, err 124 | } 125 | 126 | f := os.NewFile(uintptr(fd), string(x.RandomNumber())) 127 | defer f.Close() 128 | 129 | c, err := net.FileConn(f) 130 | if err != nil { 131 | return nil, err 132 | } 133 | return c.(*net.UDPConn), nil 134 | } 135 | 136 | func udpAddrToSocketAddr(addr *net.UDPAddr) (syscall.Sockaddr, error) { 137 | switch { 138 | case addr.IP.To4() != nil: 139 | ip := [4]byte{} 140 | copy(ip[:], addr.IP.To4()) 141 | 142 | return &syscall.SockaddrInet4{Addr: ip, Port: addr.Port}, nil 143 | 144 | default: 145 | ip := [16]byte{} 146 | copy(ip[:], addr.IP.To16()) 147 | 148 | zoneID, err := strconv.ParseUint(addr.Zone, 10, 32) 149 | if err != nil { 150 | return nil, err 151 | } 152 | 153 | return &syscall.SockaddrInet6{Addr: ip, Port: addr.Port, ZoneId: uint32(zoneID)}, nil 154 | } 155 | } 156 | 157 | func udpAddrFamily(net string, laddr, raddr *net.UDPAddr) int { 158 | switch net[len(net)-1] { 159 | case '4': 160 | return syscall.AF_INET 161 | case '6': 162 | return syscall.AF_INET6 163 | } 164 | 165 | if (laddr == nil || laddr.IP.To4() != nil) && 166 | (raddr == nil || raddr.IP.To4() != nil) { 167 | return syscall.AF_INET 168 | } 169 | return syscall.AF_INET6 170 | } 171 | -------------------------------------------------------------------------------- /relay.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "io" 5 | "log" 6 | "net" 7 | "time" 8 | 9 | cache "github.com/patrickmn/go-cache" 10 | "github.com/txthinking/socks5" 11 | ) 12 | 13 | // Relay is stream relay server 14 | type Relay struct { 15 | TCPAddr *net.TCPAddr 16 | UDPAddr *net.UDPAddr 17 | RemoteTCPAddr *net.TCPAddr 18 | RemoteUDPAddr *net.UDPAddr 19 | TCPListen *net.TCPListener 20 | UDPConn *net.UDPConn 21 | UDPExchanges *cache.Cache 22 | TCPDeadline int 23 | TCPTimeout int 24 | UDPDeadline int 25 | } 26 | 27 | // NewRelay 28 | func NewRelay(addr, remote string, tcpTimeout, tcpDeadline, udpDeadline int) (*Relay, error) { 29 | taddr, err := net.ResolveTCPAddr("tcp", addr) 30 | if err != nil { 31 | return nil, err 32 | } 33 | uaddr, err := net.ResolveUDPAddr("udp", addr) 34 | if err != nil { 35 | return nil, err 36 | } 37 | rtaddr, err := net.ResolveTCPAddr("tcp", remote) 38 | if err != nil { 39 | return nil, err 40 | } 41 | ruaddr, err := net.ResolveUDPAddr("udp", remote) 42 | if err != nil { 43 | return nil, err 44 | } 45 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 46 | s := &Relay{ 47 | TCPAddr: taddr, 48 | UDPAddr: uaddr, 49 | RemoteTCPAddr: rtaddr, 50 | RemoteUDPAddr: ruaddr, 51 | UDPExchanges: cs, 52 | TCPTimeout: tcpTimeout, 53 | TCPDeadline: tcpDeadline, 54 | UDPDeadline: udpDeadline, 55 | } 56 | return s, nil 57 | } 58 | 59 | // Run server 60 | func (s *Relay) ListenAndServe() error { 61 | errch := make(chan error) 62 | go func() { 63 | errch <- s.RunTCPServer() 64 | }() 65 | go func() { 66 | errch <- s.RunUDPServer() 67 | }() 68 | return <-errch 69 | } 70 | 71 | // RunTCPServer starts tcp server 72 | func (s *Relay) RunTCPServer() error { 73 | var err error 74 | s.TCPListen, err = net.ListenTCP("tcp", s.TCPAddr) 75 | if err != nil { 76 | return err 77 | } 78 | defer s.TCPListen.Close() 79 | for { 80 | c, err := s.TCPListen.AcceptTCP() 81 | if err != nil { 82 | return err 83 | } 84 | go func(c *net.TCPConn) { 85 | defer c.Close() 86 | if s.TCPTimeout != 0 { 87 | if err := c.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 88 | log.Println(err) 89 | return 90 | } 91 | } 92 | if s.TCPDeadline != 0 { 93 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 94 | log.Println(err) 95 | return 96 | } 97 | } 98 | if err := s.TCPHandle(c); err != nil { 99 | log.Println(err) 100 | } 101 | }(c) 102 | } 103 | return nil 104 | } 105 | 106 | // RunUDPServer starts udp server 107 | func (s *Relay) RunUDPServer() error { 108 | var err error 109 | s.UDPConn, err = net.ListenUDP("udp", s.UDPAddr) 110 | if err != nil { 111 | return err 112 | } 113 | defer s.UDPConn.Close() 114 | for { 115 | b := make([]byte, 65536) 116 | n, addr, err := s.UDPConn.ReadFromUDP(b) 117 | if err != nil { 118 | return err 119 | } 120 | go func(addr *net.UDPAddr, b []byte) { 121 | if err := s.UDPHandle(addr, b); err != nil { 122 | log.Println(err) 123 | return 124 | } 125 | }(addr, b[0:n]) 126 | } 127 | return nil 128 | } 129 | 130 | // Shutdown server 131 | func (s *Relay) Shutdown() error { 132 | var err, err1 error 133 | if s.TCPListen != nil { 134 | err = s.TCPListen.Close() 135 | } 136 | if s.UDPConn != nil { 137 | err1 = s.UDPConn.Close() 138 | } 139 | if err != nil { 140 | return err 141 | } 142 | return err1 143 | } 144 | 145 | // TCPHandle handle request 146 | func (s *Relay) TCPHandle(c *net.TCPConn) error { 147 | tmp, err := Dial.Dial("tcp", s.RemoteTCPAddr.String()) 148 | if err != nil { 149 | return err 150 | } 151 | rc := tmp.(*net.TCPConn) 152 | defer rc.Close() 153 | if s.TCPTimeout != 0 { 154 | if err := rc.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 155 | return err 156 | } 157 | } 158 | if s.TCPDeadline != 0 { 159 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 160 | return err 161 | } 162 | } 163 | 164 | // TODO 165 | go func() { 166 | _, _ = io.Copy(c, rc) 167 | }() 168 | _, _ = io.Copy(rc, c) 169 | return nil 170 | } 171 | 172 | // UDPHandle handle packet 173 | func (s *Relay) UDPHandle(addr *net.UDPAddr, b []byte) error { 174 | send := func(ue *socks5.UDPExchange, data []byte) error { 175 | _, err := ue.RemoteConn.Write(data) 176 | if err != nil { 177 | return err 178 | } 179 | return nil 180 | } 181 | 182 | var ue *socks5.UDPExchange 183 | iue, ok := s.UDPExchanges.Get(addr.String()) 184 | if ok { 185 | ue = iue.(*socks5.UDPExchange) 186 | return send(ue, b) 187 | } 188 | 189 | tmp, err := Dial.Dial("udp", s.RemoteUDPAddr.String()) 190 | if err != nil { 191 | return err 192 | } 193 | rc := tmp.(*net.UDPConn) 194 | ue = &socks5.UDPExchange{ 195 | ClientAddr: addr, 196 | RemoteConn: rc, 197 | } 198 | if err := send(ue, b); err != nil { 199 | ue.RemoteConn.Close() 200 | return err 201 | } 202 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 203 | go func(ue *socks5.UDPExchange) { 204 | defer func() { 205 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 206 | ue.RemoteConn.Close() 207 | }() 208 | var b [65536]byte 209 | for { 210 | if s.UDPDeadline != 0 { 211 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 212 | log.Println(err) 213 | break 214 | } 215 | } 216 | n, err := ue.RemoteConn.Read(b[:]) 217 | if err != nil { 218 | log.Println(err) 219 | break 220 | } 221 | if _, err := s.UDPConn.WriteToUDP(b[0:n], ue.ClientAddr); err != nil { 222 | log.Println(err) 223 | break 224 | } 225 | } 226 | }(ue) 227 | return nil 228 | } 229 | -------------------------------------------------------------------------------- /server.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "io" 5 | "log" 6 | "net" 7 | "time" 8 | 9 | cache "github.com/patrickmn/go-cache" 10 | "github.com/txthinking/socks5" 11 | ) 12 | 13 | // Server 14 | type Server struct { 15 | Password []byte 16 | TCPAddr *net.TCPAddr 17 | UDPAddr *net.UDPAddr 18 | TCPListen *net.TCPListener 19 | UDPConn *net.UDPConn 20 | UDPExchanges *cache.Cache 21 | TCPDeadline int 22 | TCPTimeout int 23 | UDPDeadline int 24 | } 25 | 26 | // NewServer 27 | func NewServer(addr, password string, tcpTimeout, tcpDeadline, udpDeadline int) (*Server, error) { 28 | taddr, err := net.ResolveTCPAddr("tcp", addr) 29 | if err != nil { 30 | return nil, err 31 | } 32 | uaddr, err := net.ResolveUDPAddr("udp", addr) 33 | if err != nil { 34 | return nil, err 35 | } 36 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 37 | s := &Server{ 38 | Password: []byte(password), 39 | TCPAddr: taddr, 40 | UDPAddr: uaddr, 41 | UDPExchanges: cs, 42 | TCPTimeout: tcpTimeout, 43 | TCPDeadline: tcpDeadline, 44 | UDPDeadline: udpDeadline, 45 | } 46 | return s, nil 47 | } 48 | 49 | // Run server 50 | func (s *Server) ListenAndServe() error { 51 | errch := make(chan error) 52 | go func() { 53 | errch <- s.RunTCPServer() 54 | }() 55 | go func() { 56 | errch <- s.RunUDPServer() 57 | }() 58 | return <-errch 59 | } 60 | 61 | // RunTCPServer starts tcp server 62 | func (s *Server) RunTCPServer() error { 63 | var err error 64 | s.TCPListen, err = net.ListenTCP("tcp", s.TCPAddr) 65 | if err != nil { 66 | return err 67 | } 68 | defer s.TCPListen.Close() 69 | for { 70 | c, err := s.TCPListen.AcceptTCP() 71 | if err != nil { 72 | return err 73 | } 74 | go func(c *net.TCPConn) { 75 | defer c.Close() 76 | if s.TCPTimeout != 0 { 77 | if err := c.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 78 | log.Println(err) 79 | return 80 | } 81 | } 82 | if s.TCPDeadline != 0 { 83 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 84 | log.Println(err) 85 | return 86 | } 87 | } 88 | if err := s.TCPHandle(c); err != nil { 89 | log.Println(err) 90 | } 91 | }(c) 92 | } 93 | return nil 94 | } 95 | 96 | // RunUDPServer starts udp server 97 | func (s *Server) RunUDPServer() error { 98 | var err error 99 | s.UDPConn, err = net.ListenUDP("udp", s.UDPAddr) 100 | if err != nil { 101 | return err 102 | } 103 | defer s.UDPConn.Close() 104 | for { 105 | b := make([]byte, 65536) 106 | n, addr, err := s.UDPConn.ReadFromUDP(b) 107 | if err != nil { 108 | return err 109 | } 110 | go func(addr *net.UDPAddr, b []byte) { 111 | if err := s.UDPHandle(addr, b); err != nil { 112 | log.Println(err) 113 | return 114 | } 115 | }(addr, b[0:n]) 116 | } 117 | return nil 118 | } 119 | 120 | // TCPHandle handle request 121 | func (s *Server) TCPHandle(c *net.TCPConn) error { 122 | cn := make([]byte, 12) 123 | if _, err := io.ReadFull(c, cn); err != nil { 124 | return err 125 | } 126 | ck, err := GetKey(s.Password, cn) 127 | if err != nil { 128 | return err 129 | } 130 | var b []byte 131 | b, cn, err = ReadFrom(c, ck, cn, true) 132 | if err != nil { 133 | return err 134 | } 135 | address := socks5.ToAddress(b[0], b[1:len(b)-2], b[len(b)-2:]) 136 | tmp, err := Dial.Dial("tcp", address) 137 | if err != nil { 138 | return err 139 | } 140 | rc := tmp.(*net.TCPConn) 141 | defer rc.Close() 142 | if s.TCPTimeout != 0 { 143 | if err := rc.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 144 | return err 145 | } 146 | } 147 | if s.TCPDeadline != 0 { 148 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 149 | return err 150 | } 151 | } 152 | 153 | go func() { 154 | k, n, err := PrepareKey(s.Password) 155 | if err != nil { 156 | log.Println(err) 157 | return 158 | } 159 | if _, err := c.Write(n); err != nil { 160 | return 161 | } 162 | var b [1024 * 2]byte 163 | for { 164 | if s.TCPDeadline != 0 { 165 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 166 | return 167 | } 168 | } 169 | i, err := rc.Read(b[:]) 170 | if err != nil { 171 | return 172 | } 173 | n, err = WriteTo(c, b[0:i], k, n, false) 174 | if err != nil { 175 | return 176 | } 177 | } 178 | }() 179 | 180 | for { 181 | if s.TCPDeadline != 0 { 182 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 183 | return nil 184 | } 185 | } 186 | b, cn, err = ReadFrom(c, ck, cn, false) 187 | if err != nil { 188 | return nil 189 | } 190 | if _, err := rc.Write(b); err != nil { 191 | return nil 192 | } 193 | } 194 | return nil 195 | } 196 | 197 | // UDPHandle handle packet 198 | func (s *Server) UDPHandle(addr *net.UDPAddr, b []byte) error { 199 | a, h, p, data, err := Decrypt(s.Password, b) 200 | if err != nil { 201 | return err 202 | } 203 | send := func(ue *socks5.UDPExchange, data []byte) error { 204 | _, err := ue.RemoteConn.Write(data) 205 | if err != nil { 206 | return err 207 | } 208 | return nil 209 | } 210 | 211 | var ue *socks5.UDPExchange 212 | iue, ok := s.UDPExchanges.Get(addr.String()) 213 | if ok { 214 | ue = iue.(*socks5.UDPExchange) 215 | return send(ue, data) 216 | } 217 | address := socks5.ToAddress(a, h, p) 218 | 219 | c, err := Dial.Dial("udp", address) 220 | if err != nil { 221 | return err 222 | } 223 | rc := c.(*net.UDPConn) 224 | ue = &socks5.UDPExchange{ 225 | ClientAddr: addr, 226 | RemoteConn: rc, 227 | } 228 | if err := send(ue, data); err != nil { 229 | ue.RemoteConn.Close() 230 | return err 231 | } 232 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 233 | go func(ue *socks5.UDPExchange) { 234 | defer func() { 235 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 236 | ue.RemoteConn.Close() 237 | }() 238 | var b [65536]byte 239 | for { 240 | if s.UDPDeadline != 0 { 241 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 242 | break 243 | } 244 | } 245 | n, err := ue.RemoteConn.Read(b[:]) 246 | if err != nil { 247 | break 248 | } 249 | a, addr, port, err := socks5.ParseAddress(ue.ClientAddr.String()) 250 | if err != nil { 251 | log.Println(err) 252 | break 253 | } 254 | d := make([]byte, 0, 7) 255 | d = append(d, a) 256 | d = append(d, addr...) 257 | d = append(d, port...) 258 | d = append(d, b[0:n]...) 259 | cd, err := Encrypt(s.Password, d) 260 | if err != nil { 261 | log.Println(err) 262 | break 263 | } 264 | if _, err := s.UDPConn.WriteToUDP(cd, ue.ClientAddr); err != nil { 265 | break 266 | } 267 | } 268 | }(ue) 269 | return nil 270 | } 271 | 272 | // Shutdown server 273 | func (s *Server) Shutdown() error { 274 | var err, err1 error 275 | if s.TCPListen != nil { 276 | err = s.TCPListen.Close() 277 | } 278 | if s.UDPConn != nil { 279 | err1 = s.UDPConn.Close() 280 | } 281 | if err != nil { 282 | return err 283 | } 284 | return err1 285 | } 286 | -------------------------------------------------------------------------------- /socks5.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "io" 6 | "log" 7 | "net" 8 | "time" 9 | 10 | cache "github.com/patrickmn/go-cache" 11 | "github.com/txthinking/brook/plugin" 12 | "github.com/txthinking/socks5" 13 | ) 14 | 15 | // Socks5Server is the client of raw socks5 protocol 16 | type Socks5Server struct { 17 | Server *socks5.Server 18 | Socks5Middleman plugin.Socks5Middleman 19 | TCPTimeout int 20 | TCPDeadline int // not refreshed 21 | UDPDeadline int 22 | UDPSessionTime int 23 | ForwardAddress string 24 | ForwardUserName string 25 | ForwardPassword string 26 | Cache *cache.Cache 27 | } 28 | 29 | // NewSocks5Server returns a new Socks5Server 30 | func NewSocks5Server(addr, ip, userName, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) (*Socks5Server, error) { 31 | s5, err := socks5.NewClassicServer(addr, ip, userName, password, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 32 | if err != nil { 33 | return nil, err 34 | } 35 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 36 | x := &Socks5Server{ 37 | Server: s5, 38 | TCPTimeout: tcpTimeout, 39 | TCPDeadline: tcpDeadline, 40 | UDPDeadline: udpDeadline, 41 | UDPSessionTime: udpSessionTime, 42 | Cache: cs, 43 | } 44 | return x, nil 45 | } 46 | 47 | // SetSocks5Middleman sets socks5middleman plugin 48 | func (x *Socks5Server) SetSocks5Middleman(m plugin.Socks5Middleman) { 49 | x.Socks5Middleman = m 50 | } 51 | 52 | // ListenAndServe will let client start to listen and serve, sm can be nil 53 | func (x *Socks5Server) ListenAndServe() error { 54 | return x.Server.Run(nil) 55 | } 56 | 57 | // ListenAndForward will let client start a proxy to listen and forward to another socks5, 58 | // sm can be nil 59 | func (x *Socks5Server) ListenAndForward(addr, username, password string) error { 60 | x.ForwardAddress = addr 61 | x.ForwardUserName = username 62 | x.ForwardPassword = password 63 | return x.Server.Run(x) 64 | } 65 | 66 | // TCPHandle handles tcp request 67 | func (x *Socks5Server) TCPHandle(s *socks5.Server, c *net.TCPConn, r *socks5.Request) error { 68 | if x.Socks5Middleman != nil { 69 | done, err := x.Socks5Middleman.TCPHandle(s, c, r) 70 | if err != nil { 71 | if done { 72 | return err 73 | } 74 | return ErrorReply(r, c, err) 75 | } 76 | if done { 77 | return nil 78 | } 79 | } 80 | 81 | client, err := socks5.NewClient(x.ForwardAddress, x.ForwardUserName, x.ForwardPassword, x.TCPTimeout, x.TCPDeadline, x.UDPDeadline) 82 | if err != nil { 83 | return err 84 | } 85 | if err := client.Negotiate(); err != nil { 86 | return ErrorReply(r, c, err) 87 | } 88 | defer client.TCPConn.Close() 89 | 90 | if r.Cmd == socks5.CmdUDP { 91 | // TODO If client's udp address is not 0, then prepare a local udp address 92 | if r.Atyp == socks5.ATYPIPv4 || r.Atyp == socks5.ATYPDomain { 93 | r.DstAddr = net.IPv4zero 94 | } else { 95 | r.DstAddr = net.IPv6zero 96 | } 97 | r.DstPort = []byte{0x00, 0x00} 98 | } 99 | rp, err := client.Request(r) 100 | if err != nil { 101 | return ErrorReply(r, c, err) 102 | } 103 | 104 | // reply ok and choose address according to cmd or something wrong 105 | if r.Cmd == socks5.CmdConnect { 106 | a, address, port, err := socks5.ParseAddress(client.TCPConn.LocalAddr().String()) 107 | if err != nil { 108 | return ErrorReply(r, c, err) 109 | } 110 | rp.Atyp = a 111 | rp.BndAddr = address 112 | rp.BndPort = port 113 | if err := rp.WriteTo(c); err != nil { 114 | return err 115 | } 116 | // TODO 117 | go func() { 118 | _, _ = io.Copy(c, client.TCPConn) 119 | }() 120 | _, _ = io.Copy(client.TCPConn, c) 121 | return nil 122 | } 123 | if r.Cmd == socks5.CmdUDP { 124 | caddr, err := r.UDP(c, x.Server.ServerAddr) 125 | if err != nil { 126 | return err 127 | } 128 | // Because we always send zero:0 to remote 129 | _, ok := x.Cache.Get("RUA") 130 | if !ok { 131 | x.Cache.Set("RUA", rp.Address(), cache.DefaultExpiration) 132 | } 133 | _, p, err := net.SplitHostPort(caddr.String()) 134 | if err != nil { 135 | return err 136 | } 137 | if p == "0" { 138 | time.Sleep(time.Duration(x.Server.UDPSessionTime) * time.Second) 139 | return nil 140 | } 141 | ch := make(chan byte) 142 | x.Server.TCPUDPAssociate.Set(caddr.String(), ch, cache.DefaultExpiration) 143 | <-ch 144 | return nil 145 | } 146 | return ErrorReply(r, c, socks5.ErrUnsupportCmd) 147 | } 148 | 149 | // UDPHandle handles udp request 150 | func (x *Socks5Server) UDPHandle(s *socks5.Server, addr *net.UDPAddr, d *socks5.Datagram) error { 151 | if x.Socks5Middleman != nil { 152 | if done, err := x.Socks5Middleman.UDPHandle(s, addr, d); err != nil || done { 153 | return err 154 | } 155 | } 156 | 157 | send := func(ue *socks5.UDPExchange, data []byte) error { 158 | _, err := ue.RemoteConn.Write(data) 159 | if err != nil { 160 | return err 161 | } 162 | return nil 163 | } 164 | 165 | var ue *socks5.UDPExchange 166 | iue, ok := s.UDPExchanges.Get(addr.String()) 167 | if ok { 168 | ue = iue.(*socks5.UDPExchange) 169 | return send(ue, d.Bytes()) 170 | } 171 | 172 | raddr, ok := x.Cache.Get("RUA") 173 | if !ok { 174 | return errors.New("Can not find remote udp address.") 175 | } 176 | tmp, err := Dial.Dial("udp", raddr.(string)) 177 | if err != nil { 178 | v, ok := s.TCPUDPAssociate.Get(addr.String()) 179 | if ok { 180 | ch := v.(chan byte) 181 | ch <- 0x00 182 | s.TCPUDPAssociate.Delete(addr.String()) 183 | } 184 | return err 185 | } 186 | rc := tmp.(*net.UDPConn) 187 | ue = &socks5.UDPExchange{ 188 | ClientAddr: addr, 189 | RemoteConn: rc, 190 | } 191 | if err := send(ue, d.Bytes()); err != nil { 192 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 193 | if ok { 194 | ch := v.(chan byte) 195 | ch <- 0x00 196 | } 197 | ue.RemoteConn.Close() 198 | return err 199 | } 200 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 201 | go func(ue *socks5.UDPExchange) { 202 | defer func() { 203 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 204 | if ok { 205 | ch := v.(chan byte) 206 | ch <- 0x00 207 | } 208 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 209 | ue.RemoteConn.Close() 210 | }() 211 | var b [65536]byte 212 | for { 213 | if s.UDPDeadline != 0 { 214 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 215 | log.Println(err) 216 | break 217 | } 218 | } 219 | n, err := ue.RemoteConn.Read(b[:]) 220 | if err != nil { 221 | log.Println(err) 222 | break 223 | } 224 | d1, err := socks5.NewDatagramFromBytes(b[0:n]) 225 | if err != nil { 226 | log.Println(err) 227 | break 228 | } 229 | a, addr, port, err := socks5.ParseAddress(ue.ClientAddr.String()) 230 | if err != nil { 231 | log.Println(err) 232 | break 233 | } 234 | d1 = socks5.NewDatagram(a, addr, port, d1.Data) 235 | if _, err := s.UDPConn.WriteToUDP(d1.Bytes(), ue.ClientAddr); err != nil { 236 | log.Println(err) 237 | break 238 | } 239 | } 240 | }(ue) 241 | return nil 242 | } 243 | 244 | // Shutdown used to stop the client 245 | func (x *Socks5Server) Shutdown() error { 246 | return x.Server.Stop() 247 | } 248 | -------------------------------------------------------------------------------- /tunnel.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "io" 5 | "log" 6 | "net" 7 | "time" 8 | 9 | cache "github.com/patrickmn/go-cache" 10 | "github.com/txthinking/socks5" 11 | ) 12 | 13 | // Tunnel 14 | type Tunnel struct { 15 | TCPAddr *net.TCPAddr 16 | UDPAddr *net.UDPAddr 17 | ToAddr string 18 | RemoteTCPAddr *net.TCPAddr 19 | RemoteUDPAddr *net.UDPAddr 20 | Password []byte 21 | TCPListen *net.TCPListener 22 | UDPConn *net.UDPConn 23 | UDPExchanges *cache.Cache 24 | TCPDeadline int 25 | TCPTimeout int 26 | UDPDeadline int 27 | } 28 | 29 | // NewTunnel 30 | func NewTunnel(addr, to, remote, password string, tcpTimeout, tcpDeadline, udpDeadline int) (*Tunnel, error) { 31 | taddr, err := net.ResolveTCPAddr("tcp", addr) 32 | if err != nil { 33 | return nil, err 34 | } 35 | uaddr, err := net.ResolveUDPAddr("udp", addr) 36 | if err != nil { 37 | return nil, err 38 | } 39 | rtaddr, err := net.ResolveTCPAddr("tcp", remote) 40 | if err != nil { 41 | return nil, err 42 | } 43 | ruaddr, err := net.ResolveUDPAddr("udp", remote) 44 | if err != nil { 45 | return nil, err 46 | } 47 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 48 | s := &Tunnel{ 49 | ToAddr: to, 50 | Password: []byte(password), 51 | TCPAddr: taddr, 52 | UDPAddr: uaddr, 53 | RemoteTCPAddr: rtaddr, 54 | RemoteUDPAddr: ruaddr, 55 | UDPExchanges: cs, 56 | TCPTimeout: tcpTimeout, 57 | TCPDeadline: tcpDeadline, 58 | UDPDeadline: udpDeadline, 59 | } 60 | return s, nil 61 | } 62 | 63 | // Run server 64 | func (s *Tunnel) ListenAndServe() error { 65 | errch := make(chan error) 66 | go func() { 67 | errch <- s.RunTCPServer() 68 | }() 69 | go func() { 70 | errch <- s.RunUDPServer() 71 | }() 72 | return <-errch 73 | } 74 | 75 | // RunTCPServer starts tcp server 76 | func (s *Tunnel) RunTCPServer() error { 77 | var err error 78 | s.TCPListen, err = net.ListenTCP("tcp", s.TCPAddr) 79 | if err != nil { 80 | return err 81 | } 82 | defer s.TCPListen.Close() 83 | for { 84 | c, err := s.TCPListen.AcceptTCP() 85 | if err != nil { 86 | return err 87 | } 88 | go func(c *net.TCPConn) { 89 | defer c.Close() 90 | if s.TCPTimeout != 0 { 91 | if err := c.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 92 | log.Println(err) 93 | return 94 | } 95 | } 96 | if s.TCPDeadline != 0 { 97 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 98 | log.Println(err) 99 | return 100 | } 101 | } 102 | if err := s.TCPHandle(c); err != nil { 103 | log.Println(err) 104 | } 105 | }(c) 106 | } 107 | return nil 108 | } 109 | 110 | // RunUDPServer starts udp server 111 | func (s *Tunnel) RunUDPServer() error { 112 | var err error 113 | s.UDPConn, err = net.ListenUDP("udp", s.UDPAddr) 114 | if err != nil { 115 | return err 116 | } 117 | defer s.UDPConn.Close() 118 | for { 119 | b := make([]byte, 65536) 120 | n, addr, err := s.UDPConn.ReadFromUDP(b) 121 | if err != nil { 122 | return err 123 | } 124 | go func(addr *net.UDPAddr, b []byte) { 125 | if err := s.UDPHandle(addr, b); err != nil { 126 | log.Println(err) 127 | return 128 | } 129 | }(addr, b[0:n]) 130 | } 131 | return nil 132 | } 133 | 134 | // Shutdown server 135 | func (s *Tunnel) Shutdown() error { 136 | var err, err1 error 137 | if s.TCPListen != nil { 138 | err = s.TCPListen.Close() 139 | } 140 | if s.UDPConn != nil { 141 | err1 = s.UDPConn.Close() 142 | } 143 | if err != nil { 144 | return err 145 | } 146 | return err1 147 | } 148 | 149 | // TCPHandle handle request 150 | func (s *Tunnel) TCPHandle(c *net.TCPConn) error { 151 | tmp, err := Dial.Dial("tcp", s.RemoteTCPAddr.String()) 152 | if err != nil { 153 | return err 154 | } 155 | rc := tmp.(*net.TCPConn) 156 | defer rc.Close() 157 | if s.TCPTimeout != 0 { 158 | if err := rc.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 159 | return err 160 | } 161 | } 162 | if s.TCPDeadline != 0 { 163 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 164 | return err 165 | } 166 | } 167 | 168 | k, n, err := PrepareKey(s.Password) 169 | if err != nil { 170 | return err 171 | } 172 | if _, err := rc.Write(n); err != nil { 173 | return err 174 | } 175 | 176 | a, address, port, err := socks5.ParseAddress(s.ToAddr) 177 | if err != nil { 178 | return err 179 | } 180 | rawaddr := make([]byte, 0, 7) 181 | rawaddr = append(rawaddr, a) 182 | rawaddr = append(rawaddr, address...) 183 | rawaddr = append(rawaddr, port...) 184 | n, err = WriteTo(rc, rawaddr, k, n, true) 185 | if err != nil { 186 | return err 187 | } 188 | 189 | go func() { 190 | n := make([]byte, 12) 191 | if _, err := io.ReadFull(rc, n); err != nil { 192 | return 193 | } 194 | k, err := GetKey(s.Password, n) 195 | if err != nil { 196 | log.Println(err) 197 | return 198 | } 199 | var b []byte 200 | for { 201 | if s.TCPDeadline != 0 { 202 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 203 | return 204 | } 205 | } 206 | b, n, err = ReadFrom(rc, k, n, false) 207 | if err != nil { 208 | return 209 | } 210 | if _, err := c.Write(b); err != nil { 211 | return 212 | } 213 | } 214 | }() 215 | 216 | var b [1024 * 2]byte 217 | for { 218 | if s.TCPDeadline != 0 { 219 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 220 | return nil 221 | } 222 | } 223 | i, err := c.Read(b[:]) 224 | if err != nil { 225 | return nil 226 | } 227 | n, err = WriteTo(rc, b[0:i], k, n, false) 228 | if err != nil { 229 | return nil 230 | } 231 | } 232 | return nil 233 | } 234 | 235 | // UDPHandle handle packet 236 | func (s *Tunnel) UDPHandle(addr *net.UDPAddr, b []byte) error { 237 | a, address, port, err := socks5.ParseAddress(s.ToAddr) 238 | if err != nil { 239 | return err 240 | } 241 | rawaddr := make([]byte, 0, 7) 242 | rawaddr = append(rawaddr, a) 243 | rawaddr = append(rawaddr, address...) 244 | rawaddr = append(rawaddr, port...) 245 | b = append(rawaddr, b...) 246 | 247 | send := func(ue *socks5.UDPExchange, data []byte) error { 248 | cd, err := Encrypt(s.Password, data) 249 | if err != nil { 250 | return err 251 | } 252 | _, err = ue.RemoteConn.Write(cd) 253 | if err != nil { 254 | return err 255 | } 256 | return nil 257 | } 258 | 259 | var ue *socks5.UDPExchange 260 | iue, ok := s.UDPExchanges.Get(addr.String()) 261 | if ok { 262 | ue = iue.(*socks5.UDPExchange) 263 | return send(ue, b) 264 | } 265 | 266 | c, err := Dial.Dial("udp", s.RemoteUDPAddr.String()) 267 | if err != nil { 268 | return err 269 | } 270 | rc := c.(*net.UDPConn) 271 | ue = &socks5.UDPExchange{ 272 | ClientAddr: addr, 273 | RemoteConn: rc, 274 | } 275 | if err := send(ue, b); err != nil { 276 | ue.RemoteConn.Close() 277 | return err 278 | } 279 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 280 | go func(ue *socks5.UDPExchange) { 281 | defer func() { 282 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 283 | ue.RemoteConn.Close() 284 | }() 285 | var b [65536]byte 286 | for { 287 | if s.UDPDeadline != 0 { 288 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 289 | break 290 | } 291 | } 292 | n, err := ue.RemoteConn.Read(b[:]) 293 | if err != nil { 294 | break 295 | } 296 | _, _, _, data, err := Decrypt(s.Password, b[0:n]) 297 | if err != nil { 298 | log.Println(err) 299 | break 300 | } 301 | if _, err := s.UDPConn.WriteToUDP(data, ue.ClientAddr); err != nil { 302 | break 303 | } 304 | } 305 | }(ue) 306 | return nil 307 | } 308 | -------------------------------------------------------------------------------- /plugin/middleman/blackwhite/blackwhite.go: -------------------------------------------------------------------------------- 1 | package blackwhite 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "io" 7 | "io/ioutil" 8 | "net" 9 | "net/http" 10 | "strings" 11 | "time" 12 | 13 | "github.com/miekg/dns" 14 | "github.com/txthinking/socks5" 15 | "github.com/txthinking/x" 16 | ) 17 | 18 | var Dial x.Dialer = x.DefaultDial 19 | 20 | // BlackWhite is a middleman 21 | type BlackWhite struct { 22 | Mode string // mode is white or black 23 | Domains map[string]byte 24 | Nets []*net.IPNet 25 | Timeout int 26 | Deadline int 27 | Socks5Handle *socks5.DefaultHandle 28 | BlackDNS string 29 | WhiteDNS string 30 | } 31 | 32 | // NewBlackWhite returns a BlackWhite 33 | func NewBlackWhite(mode, domainURL, cidrURL, blackDNS, whiteDNS string, timeout, deadline int) (*BlackWhite, error) { 34 | ds := make(map[string]byte) 35 | ns := make([]*net.IPNet, 0) 36 | if domainURL != "" { 37 | data, err := readData(domainURL) 38 | if err != nil { 39 | return nil, err 40 | } 41 | data = bytes.TrimSpace(data) 42 | data = bytes.Replace(data, []byte{0x20}, []byte{}, -1) 43 | data = bytes.Replace(data, []byte{0x0d, 0x0a}, []byte{0x0a}, -1) 44 | ss := strings.Split(string(data), "\n") 45 | for _, v := range ss { 46 | ds[v] = 0 47 | } 48 | } 49 | if cidrURL != "" { 50 | data, err := readData(cidrURL) 51 | if err != nil { 52 | return nil, err 53 | } 54 | data = bytes.TrimSpace(data) 55 | data = bytes.Replace(data, []byte{0x20}, []byte{}, -1) 56 | data = bytes.Replace(data, []byte{0x0d, 0x0a}, []byte{0x0a}, -1) 57 | ss := strings.Split(string(data), "\n") 58 | ns = make([]*net.IPNet, 0, len(ss)) 59 | for _, v := range ss { 60 | _, in, err := net.ParseCIDR(v) 61 | if err != nil { 62 | return nil, err 63 | } 64 | ns = append(ns, in) 65 | } 66 | } 67 | return &BlackWhite{ 68 | Mode: mode, 69 | Domains: ds, 70 | Nets: ns, 71 | Timeout: timeout, 72 | Deadline: deadline, 73 | Socks5Handle: &socks5.DefaultHandle{}, 74 | WhiteDNS: whiteDNS, 75 | BlackDNS: blackDNS, 76 | }, nil 77 | } 78 | 79 | // Has domain or IP 80 | func (b *BlackWhite) Has(host string) bool { 81 | ip := net.ParseIP(host) 82 | if ip != nil { 83 | for _, v := range b.Nets { 84 | if v.Contains(ip) { 85 | return true 86 | } 87 | } 88 | return false 89 | } 90 | ss := strings.Split(host, ".") 91 | var s string 92 | for i := len(ss) - 1; i >= 0; i-- { 93 | if s == "" { 94 | s = ss[i] 95 | } else { 96 | s = ss[i] + "." + s 97 | } 98 | if _, ok := b.Domains[s]; ok { 99 | return true 100 | } 101 | } 102 | return false 103 | } 104 | 105 | // TCPHandle handles tcp request 106 | func (b *BlackWhite) TCPHandle(s *socks5.Server, c *net.TCPConn, r *socks5.Request) (bool, error) { 107 | if r.Cmd == socks5.CmdConnect { 108 | h, _, err := net.SplitHostPort(r.Address()) 109 | if err != nil { 110 | return false, err 111 | } 112 | if b.Mode == "white" && !b.Has(h) { 113 | return false, nil 114 | } 115 | if b.Mode == "black" && b.Has(h) { 116 | return false, nil 117 | } 118 | if err := b.Socks5Handle.TCPHandle(s, c, r); err != nil { 119 | return true, err 120 | } 121 | return true, nil 122 | } 123 | if r.Cmd == socks5.CmdUDP { 124 | return false, nil 125 | } 126 | return false, socks5.ErrUnsupportCmd 127 | } 128 | 129 | // UDPHandle handles udp packet 130 | func (b *BlackWhite) UDPHandle(s *socks5.Server, ca *net.UDPAddr, d *socks5.Datagram) (bool, error) { 131 | if d.Address() == b.BlackDNS { 132 | done, err := b.DNSHandle(s, ca, d) 133 | if err != nil || done { 134 | return done, err 135 | } 136 | } 137 | h, _, err := net.SplitHostPort(d.Address()) 138 | if err != nil { 139 | return false, err 140 | } 141 | if b.Mode == "white" && !b.Has(h) { 142 | return false, nil 143 | } 144 | if b.Mode == "black" && b.Has(h) { 145 | return false, nil 146 | } 147 | if err := b.Socks5Handle.UDPHandle(s, ca, d); err != nil { 148 | return true, err 149 | } 150 | return true, nil 151 | } 152 | 153 | // DNSHandle handles DNS query 154 | func (b *BlackWhite) DNSHandle(s *socks5.Server, addr *net.UDPAddr, d *socks5.Datagram) (bool, error) { 155 | bye := func() { 156 | v, ok := s.TCPUDPAssociate.Get(addr.String()) 157 | if ok { 158 | ch := v.(chan byte) 159 | ch <- 0x00 160 | s.TCPUDPAssociate.Delete(addr.String()) 161 | } 162 | } 163 | m := &dns.Msg{} 164 | if err := m.Unpack(d.Data); err != nil { 165 | bye() 166 | return true, err 167 | } 168 | white := false 169 | for _, v := range m.Question { 170 | if len(v.Name) > 0 && b.Mode == "white" && b.Has(v.Name[0:len(v.Name)-1]) { 171 | white = true 172 | break 173 | } 174 | if len(v.Name) > 0 && b.Mode == "black" && !b.Has(v.Name[0:len(v.Name)-1]) { 175 | white = true 176 | break 177 | } 178 | } 179 | if !white { 180 | return false, nil 181 | } 182 | 183 | conn, err := Dial.Dial("udp", b.WhiteDNS) 184 | if err != nil { 185 | bye() 186 | return true, err 187 | } 188 | defer conn.Close() 189 | co := &dns.Conn{Conn: conn} 190 | if err := co.WriteMsg(m); err != nil { 191 | bye() 192 | return true, err 193 | } 194 | m1, err := co.ReadMsg() 195 | if err != nil { 196 | bye() 197 | return true, err 198 | } 199 | if m1.MsgHdr.Truncated { 200 | conn, err := Dial.Dial("tcp", b.WhiteDNS) 201 | if err != nil { 202 | bye() 203 | return true, err 204 | } 205 | defer conn.Close() 206 | co := &dns.Conn{Conn: conn} 207 | if err := co.WriteMsg(m); err != nil { 208 | bye() 209 | return true, err 210 | } 211 | m1, err = co.ReadMsg() 212 | if err != nil { 213 | bye() 214 | return true, err 215 | } 216 | } 217 | m1b, err := m1.Pack() 218 | if err != nil { 219 | bye() 220 | return true, err 221 | } 222 | 223 | a, ad, port, err := socks5.ParseAddress(addr.String()) 224 | if err != nil { 225 | bye() 226 | return true, err 227 | } 228 | d = socks5.NewDatagram(a, ad, port, m1b) 229 | if _, err := s.UDPConn.WriteToUDP(d.Bytes(), addr); err != nil { 230 | bye() 231 | return true, err 232 | } 233 | bye() 234 | return true, nil 235 | } 236 | 237 | // Handle handles http proxy request, if the domain is in the white list 238 | func (b *BlackWhite) Handle(method, addr string, request []byte, conn *net.TCPConn) (handled bool, err error) { 239 | h, _, err := net.SplitHostPort(addr) 240 | if err != nil { 241 | return false, err 242 | } 243 | if b.Mode == "white" && !b.Has(h) { 244 | return false, nil 245 | } 246 | if b.Mode == "black" && b.Has(h) { 247 | return false, nil 248 | } 249 | 250 | tmp, err := Dial.Dial("tcp", addr) 251 | if err != nil { 252 | return true, err 253 | } 254 | rc := tmp.(*net.TCPConn) 255 | defer rc.Close() 256 | if b.Timeout != 0 { 257 | if err := rc.SetKeepAlivePeriod(time.Duration(b.Timeout) * time.Second); err != nil { 258 | return true, err 259 | } 260 | } 261 | if b.Deadline != 0 { 262 | if err := rc.SetDeadline(time.Now().Add(time.Duration(b.Deadline) * time.Second)); err != nil { 263 | return true, err 264 | } 265 | } 266 | if method == "CONNECT" { 267 | _, err := conn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n")) 268 | if err != nil { 269 | return true, err 270 | } 271 | } 272 | if method != "CONNECT" { 273 | if _, err := rc.Write(request); err != nil { 274 | return true, err 275 | } 276 | } 277 | // TODO 278 | go func() { 279 | _, _ = io.Copy(rc, conn) 280 | }() 281 | _, _ = io.Copy(conn, rc) 282 | return true, nil 283 | } 284 | 285 | func readData(url string) ([]byte, error) { 286 | if strings.HasPrefix(url, "http://") || strings.HasPrefix(url, "https://") { 287 | c := &http.Client{ 288 | Timeout: 9 * time.Second, 289 | } 290 | r, err := c.Get(url) 291 | if err != nil { 292 | return nil, err 293 | } 294 | defer r.Body.Close() 295 | data, err := ioutil.ReadAll(r.Body) 296 | if err != nil { 297 | return nil, err 298 | } 299 | return data, nil 300 | } 301 | if strings.HasPrefix(url, "file://") { 302 | data, err := ioutil.ReadFile(url) 303 | if err != nil { 304 | return nil, err 305 | } 306 | return data, nil 307 | } 308 | return nil, errors.New("Unsupport URL") 309 | } 310 | -------------------------------------------------------------------------------- /tproxy_linux.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "errors" 5 | "fmt" 6 | "io" 7 | "log" 8 | "net" 9 | "time" 10 | 11 | cache "github.com/patrickmn/go-cache" 12 | "github.com/txthinking/brook/tproxy" 13 | "github.com/txthinking/socks5" 14 | ) 15 | 16 | // Tproxy 17 | type Tproxy struct { 18 | TCPAddr *net.TCPAddr 19 | UDPAddr *net.UDPAddr 20 | RemoteTCPAddr *net.TCPAddr 21 | RemoteUDPAddr *net.UDPAddr 22 | Password []byte 23 | TCPListen *net.TCPListener 24 | UDPConn *net.UDPConn 25 | UDPExchanges *cache.Cache 26 | TCPDeadline int 27 | TCPTimeout int 28 | UDPDeadline int 29 | } 30 | 31 | // NewTproxy 32 | func NewTproxy(addr, remote, password string, tcpTimeout, tcpDeadline, udpDeadline int) (*Tproxy, error) { 33 | taddr, err := net.ResolveTCPAddr("tcp", addr) 34 | if err != nil { 35 | return nil, err 36 | } 37 | uaddr, err := net.ResolveUDPAddr("udp", addr) 38 | if err != nil { 39 | return nil, err 40 | } 41 | rtaddr, err := net.ResolveTCPAddr("tcp", remote) 42 | if err != nil { 43 | return nil, err 44 | } 45 | ruaddr, err := net.ResolveUDPAddr("udp", remote) 46 | if err != nil { 47 | return nil, err 48 | } 49 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 50 | s := &Tproxy{ 51 | Password: []byte(password), 52 | TCPAddr: taddr, 53 | UDPAddr: uaddr, 54 | RemoteTCPAddr: rtaddr, 55 | RemoteUDPAddr: ruaddr, 56 | UDPExchanges: cs, 57 | TCPTimeout: tcpTimeout, 58 | TCPDeadline: tcpDeadline, 59 | UDPDeadline: udpDeadline, 60 | } 61 | return s, nil 62 | } 63 | 64 | // Run server 65 | func (s *Tproxy) ListenAndServe() error { 66 | errch := make(chan error) 67 | go func() { 68 | errch <- s.RunTCPServer() 69 | }() 70 | go func() { 71 | errch <- s.RunUDPServer() 72 | }() 73 | return <-errch 74 | } 75 | 76 | // RunTCPServer starts tcp server 77 | func (s *Tproxy) RunTCPServer() error { 78 | var err error 79 | s.TCPListen, err = tproxy.ListenTCP("tcp", s.TCPAddr) 80 | if err != nil { 81 | return err 82 | } 83 | defer s.TCPListen.Close() 84 | for { 85 | c, err := s.TCPListen.AcceptTCP() 86 | if err != nil { 87 | return err 88 | } 89 | go func(c *net.TCPConn) { 90 | defer c.Close() 91 | if s.TCPTimeout != 0 { 92 | if err := c.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 93 | log.Println(err) 94 | return 95 | } 96 | } 97 | if s.TCPDeadline != 0 { 98 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 99 | log.Println(err) 100 | return 101 | } 102 | } 103 | if err := s.TCPHandle(c); err != nil { 104 | log.Println(err) 105 | } 106 | }(c) 107 | } 108 | return nil 109 | } 110 | 111 | // RunUDPServer starts udp server 112 | func (s *Tproxy) RunUDPServer() error { 113 | var err error 114 | s.UDPConn, err = tproxy.ListenUDP("udp", s.UDPAddr) 115 | if err != nil { 116 | return err 117 | } 118 | defer s.UDPConn.Close() 119 | for { 120 | b := make([]byte, 65536) 121 | n, saddr, daddr, err := tproxy.ReadFromUDP(s.UDPConn, b) 122 | if err != nil { 123 | return err 124 | } 125 | if n == 0 { 126 | continue 127 | } 128 | go func(saddr, daddr *net.UDPAddr, b []byte) { 129 | if err := s.UDPHandle(saddr, daddr, b); err != nil { 130 | log.Println(err) 131 | return 132 | } 133 | }(saddr, daddr, b[0:n]) 134 | } 135 | return nil 136 | } 137 | 138 | // Shutdown server 139 | func (s *Tproxy) Shutdown() error { 140 | var err, err1 error 141 | if s.TCPListen != nil { 142 | err = s.TCPListen.Close() 143 | } 144 | if s.UDPConn != nil { 145 | err1 = s.UDPConn.Close() 146 | } 147 | if err != nil { 148 | return err 149 | } 150 | return err1 151 | } 152 | 153 | // TCPHandle handle request 154 | func (s *Tproxy) TCPHandle(c *net.TCPConn) error { 155 | tmp, err := tproxy.DialTCP("tcp", s.RemoteTCPAddr.String()) 156 | if err != nil { 157 | return err 158 | } 159 | rc := tmp.(*net.TCPConn) 160 | defer rc.Close() 161 | if s.TCPTimeout != 0 { 162 | if err := rc.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 163 | return err 164 | } 165 | } 166 | if s.TCPDeadline != 0 { 167 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 168 | return err 169 | } 170 | } 171 | 172 | k, n, err := PrepareKey(s.Password) 173 | if err != nil { 174 | return err 175 | } 176 | if _, err := rc.Write(n); err != nil { 177 | return err 178 | } 179 | 180 | a, address, port, err := socks5.ParseAddress(c.LocalAddr().String()) 181 | if err != nil { 182 | return err 183 | } 184 | rawaddr := make([]byte, 0, 7) 185 | rawaddr = append(rawaddr, a) 186 | rawaddr = append(rawaddr, address...) 187 | rawaddr = append(rawaddr, port...) 188 | n, err = WriteTo(rc, rawaddr, k, n, true) 189 | if err != nil { 190 | return err 191 | } 192 | 193 | go func() { 194 | n := make([]byte, 12) 195 | if _, err := io.ReadFull(rc, n); err != nil { 196 | return 197 | } 198 | k, err := GetKey(s.Password, n) 199 | if err != nil { 200 | log.Println(err) 201 | return 202 | } 203 | var b []byte 204 | for { 205 | if s.TCPDeadline != 0 { 206 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 207 | return 208 | } 209 | } 210 | b, n, err = ReadFrom(rc, k, n, false) 211 | if err != nil { 212 | return 213 | } 214 | if _, err := c.Write(b); err != nil { 215 | return 216 | } 217 | } 218 | }() 219 | 220 | var b [1024 * 2]byte 221 | for { 222 | if s.TCPDeadline != 0 { 223 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 224 | return nil 225 | } 226 | } 227 | i, err := c.Read(b[:]) 228 | if err != nil { 229 | return nil 230 | } 231 | n, err = WriteTo(rc, b[0:i], k, n, false) 232 | if err != nil { 233 | return nil 234 | } 235 | } 236 | return nil 237 | } 238 | 239 | type UDPExchange struct { 240 | RemoteConn *net.UDPConn 241 | LocalConn *net.UDPConn 242 | } 243 | 244 | func (s *Tproxy) UDPHandle(addr, daddr *net.UDPAddr, b []byte) error { 245 | a, address, port, err := socks5.ParseAddress(daddr.String()) 246 | if err != nil { 247 | return err 248 | } 249 | rawaddr := make([]byte, 0, 7) 250 | rawaddr = append(rawaddr, a) 251 | rawaddr = append(rawaddr, address...) 252 | rawaddr = append(rawaddr, port...) 253 | b = append(rawaddr, b...) 254 | 255 | send := func(ue *UDPExchange, data []byte) error { 256 | cd, err := Encrypt(s.Password, data) 257 | if err != nil { 258 | return err 259 | } 260 | _, err = ue.RemoteConn.Write(cd) 261 | if err != nil { 262 | return err 263 | } 264 | return nil 265 | } 266 | 267 | var ue *UDPExchange 268 | iue, ok := s.UDPExchanges.Get(addr.String()) 269 | if ok { 270 | ue = iue.(*UDPExchange) 271 | return send(ue, b) 272 | } 273 | 274 | rc, err := tproxy.DialUDP("udp", &net.UDPAddr{ 275 | IP: net.IPv4zero, 276 | Port: 0, 277 | }, s.RemoteUDPAddr) 278 | if err != nil { 279 | return err 280 | } 281 | c, err := tproxy.DialUDP("udp", daddr, addr) 282 | if err != nil { 283 | rc.Close() 284 | return errors.New(fmt.Sprintf("src: %s dst: %s %s", daddr.String(), addr.String(), err.Error())) 285 | } 286 | ue = &UDPExchange{ 287 | RemoteConn: rc, 288 | LocalConn: c, 289 | } 290 | if err := send(ue, b); err != nil { 291 | ue.RemoteConn.Close() 292 | ue.LocalConn.Close() 293 | return err 294 | } 295 | s.UDPExchanges.Set(ue.LocalConn.RemoteAddr().String(), ue, cache.DefaultExpiration) 296 | go func(ue *UDPExchange) { 297 | defer func() { 298 | s.UDPExchanges.Delete(ue.LocalConn.RemoteAddr().String()) 299 | ue.RemoteConn.Close() 300 | ue.LocalConn.Close() 301 | }() 302 | var b [65536]byte 303 | for { 304 | if s.UDPDeadline != 0 { 305 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 306 | break 307 | } 308 | } 309 | n, err := ue.RemoteConn.Read(b[:]) 310 | if err != nil { 311 | break 312 | } 313 | _, _, _, data, err := Decrypt(s.Password, b[0:n]) 314 | if err != nil { 315 | break 316 | } 317 | if _, err := ue.LocalConn.Write(data); err != nil { 318 | break 319 | } 320 | } 321 | }(ue) 322 | return nil 323 | } 324 | -------------------------------------------------------------------------------- /ssserver.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "crypto/aes" 5 | "crypto/rand" 6 | "errors" 7 | "io" 8 | "log" 9 | "net" 10 | "time" 11 | 12 | cache "github.com/patrickmn/go-cache" 13 | "github.com/txthinking/socks5" 14 | "github.com/txthinking/x" 15 | ) 16 | 17 | // SSServer 18 | type SSServer struct { 19 | Password []byte 20 | TCPAddr *net.TCPAddr 21 | UDPAddr *net.UDPAddr 22 | TCPListen *net.TCPListener 23 | UDPConn *net.UDPConn 24 | UDPExchanges *cache.Cache 25 | TCPDeadline int 26 | TCPTimeout int 27 | UDPDeadline int 28 | } 29 | 30 | // NewSSServer 31 | func NewSSServer(addr, password string, tcpTimeout, tcpDeadline, udpDeadline int) (*SSServer, error) { 32 | taddr, err := net.ResolveTCPAddr("tcp", addr) 33 | if err != nil { 34 | return nil, err 35 | } 36 | uaddr, err := net.ResolveUDPAddr("udp", addr) 37 | if err != nil { 38 | return nil, err 39 | } 40 | cs := cache.New(cache.NoExpiration, cache.NoExpiration) 41 | s := &SSServer{ 42 | Password: MakeSSKey(password), 43 | TCPAddr: taddr, 44 | UDPAddr: uaddr, 45 | UDPExchanges: cs, 46 | TCPTimeout: tcpTimeout, 47 | TCPDeadline: tcpDeadline, 48 | UDPDeadline: udpDeadline, 49 | } 50 | return s, nil 51 | } 52 | 53 | // ListenAndServe server 54 | func (s *SSServer) ListenAndServe() error { 55 | errch := make(chan error) 56 | go func() { 57 | errch <- s.RunTCPServer() 58 | }() 59 | go func() { 60 | errch <- s.RunUDPServer() 61 | }() 62 | return <-errch 63 | } 64 | 65 | // RunTCPServer starts tcp server 66 | func (s *SSServer) RunTCPServer() error { 67 | var err error 68 | s.TCPListen, err = net.ListenTCP("tcp", s.TCPAddr) 69 | if err != nil { 70 | return err 71 | } 72 | defer s.TCPListen.Close() 73 | for { 74 | c, err := s.TCPListen.AcceptTCP() 75 | if err != nil { 76 | return err 77 | } 78 | go func(c *net.TCPConn) { 79 | defer c.Close() 80 | if s.TCPTimeout != 0 { 81 | if err := c.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 82 | log.Println(err) 83 | return 84 | } 85 | } 86 | if s.TCPDeadline != 0 { 87 | if err := c.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 88 | log.Println(err) 89 | return 90 | } 91 | } 92 | if err := s.TCPHandle(c); err != nil { 93 | log.Println(err) 94 | } 95 | }(c) 96 | } 97 | return nil 98 | } 99 | 100 | // RunUDPServer starts udp server 101 | func (s *SSServer) RunUDPServer() error { 102 | var err error 103 | s.UDPConn, err = net.ListenUDP("udp", s.UDPAddr) 104 | if err != nil { 105 | return err 106 | } 107 | defer s.UDPConn.Close() 108 | for { 109 | b := make([]byte, 65536) 110 | n, addr, err := s.UDPConn.ReadFromUDP(b) 111 | if err != nil { 112 | return err 113 | } 114 | go func(addr *net.UDPAddr, b []byte) { 115 | if err := s.UDPHandle(addr, b); err != nil { 116 | log.Println(err) 117 | return 118 | } 119 | }(addr, b[0:n]) 120 | } 121 | return nil 122 | } 123 | 124 | // TCPHandle handle request 125 | func (s *SSServer) TCPHandle(c *net.TCPConn) error { 126 | cc, err := s.WrapCipherConn(c) 127 | if err != nil { 128 | return err 129 | } 130 | bb := make([]byte, 1) 131 | if _, err := io.ReadFull(cc, bb); err != nil { 132 | return err 133 | } 134 | var addr []byte 135 | if bb[0] == socks5.ATYPIPv4 { 136 | addr = make([]byte, 4) 137 | if _, err := io.ReadFull(cc, addr); err != nil { 138 | return err 139 | } 140 | } else if bb[0] == socks5.ATYPIPv6 { 141 | addr = make([]byte, 16) 142 | if _, err := io.ReadFull(cc, addr); err != nil { 143 | return err 144 | } 145 | } else if bb[0] == socks5.ATYPDomain { 146 | dal := make([]byte, 1) 147 | if _, err := io.ReadFull(cc, dal); err != nil { 148 | return err 149 | } 150 | if dal[0] == 0 { 151 | return err 152 | } 153 | addr = make([]byte, int(dal[0])) 154 | if _, err := io.ReadFull(cc, addr); err != nil { 155 | return err 156 | } 157 | addr = append(dal, addr...) 158 | } else { 159 | return errors.New("Unknown address type") 160 | } 161 | port := make([]byte, 2) 162 | if _, err := io.ReadFull(cc, port); err != nil { 163 | return err 164 | } 165 | address := socks5.ToAddress(bb[0], addr, port) 166 | 167 | tmp, err := Dial.Dial("tcp", address) 168 | if err != nil { 169 | return err 170 | } 171 | rc := tmp.(*net.TCPConn) 172 | defer rc.Close() 173 | if s.TCPTimeout != 0 { 174 | if err := rc.SetKeepAlivePeriod(time.Duration(s.TCPTimeout) * time.Second); err != nil { 175 | return err 176 | } 177 | } 178 | if s.TCPDeadline != 0 { 179 | if err := rc.SetDeadline(time.Now().Add(time.Duration(s.TCPDeadline) * time.Second)); err != nil { 180 | return err 181 | } 182 | } 183 | 184 | // TODO 185 | go func() { 186 | iv := make([]byte, aes.BlockSize) 187 | if _, err := io.ReadFull(rand.Reader, iv); err != nil { 188 | log.Println(err) 189 | return 190 | } 191 | if _, err := cc.Write(iv); err != nil { 192 | log.Println(err) 193 | return 194 | } 195 | _, _ = io.Copy(cc, rc) 196 | }() 197 | _, _ = io.Copy(rc, cc) 198 | return nil 199 | } 200 | 201 | // UDPHandle handle packet 202 | func (s *SSServer) UDPHandle(addr *net.UDPAddr, b []byte) error { 203 | a, h, p, data, err := s.Decrypt(b) 204 | if err != nil { 205 | return err 206 | } 207 | send := func(ue *socks5.UDPExchange, data []byte) error { 208 | _, err := ue.RemoteConn.Write(data) 209 | if err != nil { 210 | return err 211 | } 212 | return nil 213 | } 214 | 215 | var ue *socks5.UDPExchange 216 | iue, ok := s.UDPExchanges.Get(addr.String()) 217 | if ok { 218 | ue = iue.(*socks5.UDPExchange) 219 | return send(ue, data) 220 | } 221 | address := socks5.ToAddress(a, h, p) 222 | 223 | c, err := Dial.Dial("udp", address) 224 | if err != nil { 225 | return err 226 | } 227 | rc := c.(*net.UDPConn) 228 | ue = &socks5.UDPExchange{ 229 | ClientAddr: addr, 230 | RemoteConn: rc, 231 | } 232 | if err := send(ue, data); err != nil { 233 | ue.RemoteConn.Close() 234 | return err 235 | } 236 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 237 | go func(ue *socks5.UDPExchange) { 238 | defer func() { 239 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 240 | ue.RemoteConn.Close() 241 | }() 242 | var b [65536]byte 243 | for { 244 | if s.UDPDeadline != 0 { 245 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 246 | log.Println(err) 247 | break 248 | } 249 | } 250 | n, err := ue.RemoteConn.Read(b[:]) 251 | if err != nil { 252 | log.Println(err) 253 | break 254 | } 255 | a, addr, port, err := socks5.ParseAddress(ue.ClientAddr.String()) 256 | if err != nil { 257 | log.Println(err) 258 | break 259 | } 260 | cd, err := s.Encrypt(a, addr, port, b[0:n]) 261 | if err != nil { 262 | log.Println(err) 263 | break 264 | } 265 | if _, err := s.UDPConn.WriteToUDP(cd, ue.ClientAddr); err != nil { 266 | log.Println(err) 267 | break 268 | } 269 | } 270 | }(ue) 271 | return nil 272 | } 273 | 274 | // WrapChiperConn make a chiper conn 275 | func (s *SSServer) WrapCipherConn(conn net.Conn) (*CipherConn, error) { 276 | iv := make([]byte, aes.BlockSize) 277 | if _, err := io.ReadFull(conn, iv); err != nil { 278 | return nil, err 279 | } 280 | return NewCipherConn(conn, s.Password, iv) 281 | } 282 | 283 | // Encrypt data 284 | func (s *SSServer) Encrypt(a byte, h, p, d []byte) ([]byte, error) { 285 | b := make([]byte, 0, 7) 286 | b = append(b, a) 287 | b = append(b, h...) 288 | b = append(b, p...) 289 | b = append(b, d...) 290 | return x.AESCFBEncrypt(b, s.Password) 291 | } 292 | 293 | // Decrypt data 294 | func (s *SSServer) Decrypt(cd []byte) (a byte, addr, port, data []byte, err error) { 295 | var bb []byte 296 | bb, err = x.AESCFBDecrypt(cd, s.Password) 297 | if err != nil { 298 | return 299 | } 300 | err = errors.New("Data length error") 301 | n := len(bb) 302 | minl := 1 303 | if n < minl { 304 | return 305 | } 306 | if bb[0] == socks5.ATYPIPv4 { 307 | minl += 4 308 | if n < minl { 309 | return 310 | } 311 | addr = bb[minl-4 : minl] 312 | } else if bb[0] == socks5.ATYPIPv6 { 313 | minl += 16 314 | if n < minl { 315 | return 316 | } 317 | addr = bb[minl-16 : minl] 318 | } else if bb[0] == socks5.ATYPDomain { 319 | minl += 1 320 | if n < minl { 321 | return 322 | } 323 | l := bb[1] 324 | if l == 0 { 325 | return 326 | } 327 | minl += int(l) 328 | if n < minl { 329 | return 330 | } 331 | addr = bb[minl-int(l) : minl] 332 | addr = append([]byte{l}, addr...) 333 | } else { 334 | return 335 | } 336 | minl += 2 337 | if n <= minl { 338 | return 339 | } 340 | a = bb[0] 341 | port = bb[minl-2 : minl] 342 | data = bb[minl:] 343 | err = nil 344 | return 345 | } 346 | 347 | // Shutdown server 348 | func (s *SSServer) Shutdown() error { 349 | var err, err1 error 350 | if s.TCPListen != nil { 351 | err = s.TCPListen.Close() 352 | } 353 | if s.UDPConn != nil { 354 | err1 = s.UDPConn.Close() 355 | } 356 | if err != nil { 357 | return err 358 | } 359 | return err1 360 | } 361 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Brook 2 | 3 | [![Build Status](https://travis-ci.org/txthinking/brook.svg?branch=master)](https://travis-ci.org/txthinking/brook) [![Go Report Card](https://goreportcard.com/badge/github.com/txthinking/brook)](https://goreportcard.com/report/github.com/txthinking/brook) [![License: GPL v3](https://img.shields.io/badge/License-GPL%20v3-blue.svg)](http://www.gnu.org/licenses/gpl-3.0) [![Wiki](https://img.shields.io/badge/docs-wiki-blue.svg)](https://github.com/txthinking/brook/wiki) 4 | 5 |

6 | Brook 7 |

8 | 9 | --- 10 | 11 | ### v20181212 12 | 13 | * Uninstall/Delete the old client on MacOS or Windows 14 | * On MacOS, you need to System Preferences -> Security & Privacy, click Open Anyway, when you open Brook 15 | * No longer support the snap package 16 | 17 | --- 18 | 19 | ### Table of Contents 20 | 21 | * [What is Brook](#what-is-brook) 22 | * [Download](#download) 23 | * [Packages](#packages) 24 | * [**Server**](#server) 25 | * [**Client (CLI)**](#client-cli) 26 | * [**Client (GUI)**](#client-gui) 27 | * [Tunnel](#tunnel) 28 | * [Tproxy](#tproxy) 29 | * [VPN](#vpn) 30 | * [Relay](#relay) 31 | * [Socks5](#socks5) 32 | * [Socks5 to HTTP](#socks5-to-http) 33 | * [Shadowsocks](#shadowsocks) 34 | * [Contributing](#contributing) 35 | * [License](#license) 36 | 37 | ## What is Brook 38 | 39 | Brook is a cross-platform proxy/vpn software.
40 | Brook's goal is to keep it simple, stupid and not detectable. 41 | 42 | ## Download 43 | 44 | | Download | Server/Client | OS | Arch | Remark | 45 | | --- | --- | --- | --- | --- | 46 | | [brook](https://github.com/txthinking/brook/releases/download/v20181212/brook) | Server & Client | Linux | amd64 | CLI | 47 | | [brook_linux_386](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_386) | Server & Client | Linux | 386 | CLI | 48 | | [brook_linux_arm64](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_arm64) | Server & Client | Linux | arm64 | CLI | 49 | | [brook_linux_arm5](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_arm5) | Server & Client | Linux | arm5 | CLI | 50 | | [brook_linux_arm6](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_arm6) | Server & Client | Linux | arm6 | CLI | 51 | | [brook_linux_arm7](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_arm7) | Server & Client | Linux | arm7 | CLI | 52 | | [brook_linux_mips](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_mips) | Server & Client | Linux | mips | CLI | 53 | | [brook_linux_mipsle](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_mipsle) | Server & Client | Linux | mipsle | CLI | 54 | | [brook_linux_mips64](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_mips64) | Server & Client | Linux | mips64 | CLI | 55 | | [brook_linux_mips64le](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_mips64le) | Server & Client | Linux | mips64le | CLI | 56 | | [brook_linux_ppc64](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_ppc64) | Server & Client | Linux | ppc64 | CLI | 57 | | [brook_linux_ppc64le](https://github.com/txthinking/brook/releases/download/v20181212/brook_linux_ppc64le) | Server & Client | Linux | ppc64le | CLI | 58 | | [brook_darwin_amd64](https://github.com/txthinking/brook/releases/download/v20181212/brook_darwin_amd64) | Server & Client | MacOS | amd64 | CLI | 59 | | [brook_windows_amd64.exe](https://github.com/txthinking/brook/releases/download/v20181212/brook_windows_amd64.exe) | Server & Client | Windows | amd64 | CLI | 60 | | [brook_windows_386.exe](https://github.com/txthinking/brook/releases/download/v20181212/brook_windows_386.exe) | Server & Client | Windows | 386 | CLI | 61 | | [Brook.dmg](https://github.com/txthinking/brook/releases/download/v20181212/Brook.dmg) | Client | MacOS | amd64 | GUI | 62 | | [Brook.exe](https://github.com/txthinking/brook/releases/download/v20181212/Brook.exe) | Client | Windows | amd64 | GUI | 63 | | [App Store](https://itunes.apple.com/us/app/brook-brook-shadowsocks-vpn-proxy/id1216002642) | Client | iOS | - | GUI | 64 | | [Brook.apk](https://github.com/txthinking/brook/releases/download/v20181212/Brook.apk)(No Google Play) | Client | Android | - | GUI | 65 | 66 | **See [wiki](https://github.com/txthinking/brook/wiki) for more tutorials** 67 | 68 | ## Packages 69 | 70 | ### ArchLinux 71 | 72 | ``` 73 | sudo pacman -S brook 74 | ``` 75 | 76 | ### MacOS(GUI) 77 | 78 | ``` 79 | brew cask install brook 80 | ``` 81 | 82 | ## Brook 83 | 84 | ``` 85 | NAME: 86 | Brook - A Cross-Platform Proxy/VPN Software 87 | 88 | USAGE: 89 | brook [global options] command [command options] [arguments...] 90 | 91 | VERSION: 92 | 20181212 93 | 94 | AUTHOR: 95 | Cloud 96 | 97 | COMMANDS: 98 | server Run as server mode 99 | servers Run as multiple servers mode 100 | client Run as client mode 101 | tunnel Run as tunnel mode on client-side 102 | tproxy Run as tproxy mode on client-side, transparent proxy, only works on Linux 103 | vpn Run as VPN mode on client-side 104 | ssserver Run as shadowsocks server mode, fixed method is aes-256-cfb 105 | ssservers Run as shadowsocks multiple servers mode, fixed method is aes-256-cfb 106 | ssclient Run as shadowsocks client mode, fixed method is aes-256-cfb 107 | socks5 Run as raw socks5 server 108 | relay Run as relay mode 109 | relays Run as multiple relays mode 110 | qr Print brook server QR code 111 | socks5tohttp Convert socks5 to http proxy 112 | systemproxy Set system proxy with pac url, or remove, only works on MacOS/Windows 113 | help, h Shows a list of commands or help for one command 114 | 115 | GLOBAL OPTIONS: 116 | --debug, -d Enable debug 117 | --listen value, -l value Listen address for debug (default: ":6060") 118 | --help, -h show help 119 | --version, -v print the version 120 | ``` 121 | 122 | ### Server 123 | 124 | ``` 125 | # Run as a brook server 126 | $ brook server -l :9999 -p password 127 | ``` 128 | 129 | ``` 130 | # Run as multiple brook servers 131 | $ brook servers -l ":9999 password" -l ":8888 password" 132 | ``` 133 | 134 | > If you run a public/shared server, do not forget this parameter --tcpDeadline 135 | 136 | ### Client (CLI) 137 | 138 | ``` 139 | # Run as brook client, start a socks5 proxy socks5://127.0.0.1:1080 140 | $ brook client -l 127.0.0.1:1080 -i 127.0.0.1 -s server_address:port -p password 141 | ``` 142 | 143 | ``` 144 | # Run as brook client, start a http(s) proxy http(s)://127.0.0.1:8080 145 | $ brook client -l 127.0.0.1:8080 -i 127.0.0.1 -s server_address:port -p password --http 146 | ``` 147 | 148 | ### Client (GUI) 149 | 150 | See [wiki](https://github.com/txthinking/brook/wiki) 151 | 152 | #### Tunnel 153 | 154 | ``` 155 | # Run as tunnel 127.0.0.1:5 to 1.2.3.4:5 156 | $ brook tunnel -l 127.0.0.1:5 -t 1.2.3.4:5 -s server_address:port -p password 157 | ``` 158 | 159 | #### Tproxy (usually used on Linux router box) 160 | 161 | See [wiki](https://github.com/txthinking/brook/wiki/How-to-run-transparent-proxy-on-Linux%3F) 162 | 163 | #### VPN 164 | 165 | ``` 166 | # Run as VPN to proxy all TCP/UDP. [ROOT privileges required]. 167 | $ sudo brook vpn -l 127.0.0.1:1080 -s server_address:port -p password 168 | ``` 169 | 170 | **See [wiki](https://github.com/txthinking/brook/wiki/How-to-run-VPN-on-Linux,-MacOS-and-Windows%3F) for more tutorials** 171 | 172 | #### Relay 173 | 174 | ``` 175 | # Run as relay to 1.2.3.4:5 176 | $ brook relay -l :5 -r 1.2.3.4:5 177 | ``` 178 | 179 | #### Socks5 180 | 181 | ``` 182 | # Run as a raw socks5 server 1.2.3.4:1080 183 | $ brook socks5 -l :1080 -i 1.2.3.4 184 | ``` 185 | 186 | #### Socks5 to HTTP 187 | 188 | ``` 189 | # Convert socks5://127.0.0.1:1080 to http(s)://127.0.0.1:8080 proxy 190 | $ brook socks5tohttp -l 127.0.0.1:8080 -s 127.0.0.1:1080 191 | ``` 192 | 193 | #### Shadowsocks 194 | 195 | ``` 196 | # Run as a shadowsocks server 197 | $ brook ssserver -l :9999 -p password 198 | ``` 199 | 200 | ``` 201 | # Run as multiple shadowsocks servers 202 | $ brook ssservers -l ":9999 password" -l ":8888 password" 203 | ``` 204 | 205 | > If you run a public/shared server, do not forget this parameter --tcpDeadline 206 | 207 | ``` 208 | # Run as shadowsocks client, start a socks5 proxy socks5://127.0.0.1:1080 209 | $ brook ssclient -l 127.0.0.1:1080 -i 127.0.0.1 -s server_address:port -p password 210 | ``` 211 | 212 | ``` 213 | # Run as shadowsocks client, start a http(s) proxy http(s)://127.0.0.1:8080 214 | $ brook ssclient -l 127.0.0.1:8080 -i 127.0.0.1 -s server_address:port -p password --http 215 | ``` 216 | 217 | > Fixed method is aes-256-cfb 218 | 219 | **See [wiki](https://github.com/txthinking/brook/wiki) for more tutorials** 220 | 221 | ## Contributing 222 | 223 | Please read [CONTRIBUTING.md](https://github.com/txthinking/brook/blob/master/.github/CONTRIBUTING.md) first 224 | 225 | ## License 226 | 227 | Licensed under The GPLv3 License 228 | -------------------------------------------------------------------------------- /ssclient.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "bytes" 5 | "crypto/aes" 6 | "crypto/rand" 7 | "errors" 8 | "io" 9 | "log" 10 | "net" 11 | "time" 12 | 13 | cache "github.com/patrickmn/go-cache" 14 | "github.com/txthinking/brook/plugin" 15 | "github.com/txthinking/socks5" 16 | xx "github.com/txthinking/x" 17 | ) 18 | 19 | // SSClient 20 | type SSClient struct { 21 | Server *socks5.Server 22 | RemoteAddr string 23 | Password []byte 24 | TCPTimeout int 25 | TCPDeadline int // Not refreshed 26 | UDPDeadline int 27 | TCPListen *net.TCPListener 28 | Socks5Middleman plugin.Socks5Middleman 29 | HTTPMiddleman plugin.HTTPMiddleman 30 | } 31 | 32 | // NewSSClient returns a new SSClient 33 | func NewSSClient(addr, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) (*SSClient, error) { 34 | s5, err := socks5.NewClassicServer(addr, ip, "", "", tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 35 | if err != nil { 36 | return nil, err 37 | } 38 | x := &SSClient{ 39 | RemoteAddr: server, 40 | Server: s5, 41 | Password: MakeSSKey(password), 42 | TCPTimeout: tcpTimeout, 43 | TCPDeadline: tcpDeadline, 44 | UDPDeadline: udpDeadline, 45 | } 46 | return x, nil 47 | } 48 | 49 | // SetSocks5Middleman sets socks5middleman plugin 50 | func (x *SSClient) SetSocks5Middleman(m plugin.Socks5Middleman) { 51 | x.Socks5Middleman = m 52 | } 53 | 54 | // SetHTTPMiddleman sets httpmiddleman plugin 55 | func (x *SSClient) SetHTTPMiddleman(m plugin.HTTPMiddleman) { 56 | x.HTTPMiddleman = m 57 | } 58 | 59 | // ListenAndServe will let client start a socks5 proxy 60 | // sm can be nil 61 | func (x *SSClient) ListenAndServe() error { 62 | return x.Server.Run(x) 63 | } 64 | 65 | // TCPHandle handles tcp request 66 | func (x *SSClient) TCPHandle(s *socks5.Server, c *net.TCPConn, r *socks5.Request) error { 67 | if x.Socks5Middleman != nil { 68 | done, err := x.Socks5Middleman.TCPHandle(s, c, r) 69 | if err != nil { 70 | if done { 71 | return err 72 | } 73 | return ErrorReply(r, c, err) 74 | } 75 | if done { 76 | return nil 77 | } 78 | } 79 | 80 | if r.Cmd == socks5.CmdConnect { 81 | tmp, err := Dial.Dial("tcp", x.RemoteAddr) 82 | if err != nil { 83 | return ErrorReply(r, c, err) 84 | } 85 | rc := tmp.(*net.TCPConn) 86 | defer rc.Close() 87 | if x.TCPTimeout != 0 { 88 | if err := rc.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 89 | return ErrorReply(r, c, err) 90 | } 91 | } 92 | if x.TCPDeadline != 0 { 93 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 94 | return ErrorReply(r, c, err) 95 | } 96 | } 97 | crc, err := x.WrapCipherConn(rc) 98 | if err != nil { 99 | return ErrorReply(r, c, err) 100 | } 101 | rawaddr := make([]byte, 0, 7) 102 | rawaddr = append(rawaddr, r.Atyp) 103 | rawaddr = append(rawaddr, r.DstAddr...) 104 | rawaddr = append(rawaddr, r.DstPort...) 105 | if _, err := crc.Write(rawaddr); err != nil { 106 | return ErrorReply(r, c, err) 107 | } 108 | a, address, port, err := socks5.ParseAddress(rc.LocalAddr().String()) 109 | if err != nil { 110 | return ErrorReply(r, c, err) 111 | } 112 | 113 | rp := socks5.NewReply(socks5.RepSuccess, a, address, port) 114 | if err := rp.WriteTo(c); err != nil { 115 | return err 116 | } 117 | 118 | // TODO 119 | go func() { 120 | iv := make([]byte, aes.BlockSize) 121 | if _, err := io.ReadFull(crc, iv); err != nil { 122 | log.Println(err) 123 | return 124 | } 125 | _, _ = io.Copy(c, crc) 126 | }() 127 | _, _ = io.Copy(crc, c) 128 | return nil 129 | } 130 | if r.Cmd == socks5.CmdUDP { 131 | caddr, err := r.UDP(c, x.Server.ServerAddr) 132 | if err != nil { 133 | return err 134 | } 135 | _, p, err := net.SplitHostPort(caddr.String()) 136 | if err != nil { 137 | return err 138 | } 139 | if p == "0" { 140 | time.Sleep(time.Duration(x.Server.UDPSessionTime) * time.Second) 141 | return nil 142 | } 143 | ch := make(chan byte) 144 | x.Server.TCPUDPAssociate.Set(caddr.String(), ch, cache.DefaultExpiration) 145 | <-ch 146 | return nil 147 | } 148 | return socks5.ErrUnsupportCmd 149 | } 150 | 151 | // UDPHandle handles udp request 152 | func (x *SSClient) UDPHandle(s *socks5.Server, addr *net.UDPAddr, d *socks5.Datagram) error { 153 | if x.Socks5Middleman != nil { 154 | if done, err := x.Socks5Middleman.UDPHandle(s, addr, d); err != nil || done { 155 | return err 156 | } 157 | } 158 | 159 | send := func(ue *socks5.UDPExchange, data []byte) error { 160 | cd, err := x.Encrypt(data) 161 | if err != nil { 162 | return err 163 | } 164 | _, err = ue.RemoteConn.Write(cd) 165 | if err != nil { 166 | return err 167 | } 168 | return nil 169 | } 170 | 171 | var ue *socks5.UDPExchange 172 | iue, ok := s.UDPExchanges.Get(addr.String()) 173 | if ok { 174 | ue = iue.(*socks5.UDPExchange) 175 | return send(ue, d.Bytes()[3:]) 176 | } 177 | 178 | c, err := Dial.Dial("udp", x.RemoteAddr) 179 | if err != nil { 180 | v, ok := s.TCPUDPAssociate.Get(addr.String()) 181 | if ok { 182 | ch := v.(chan byte) 183 | ch <- 0x00 184 | } 185 | return err 186 | } 187 | rc := c.(*net.UDPConn) 188 | ue = &socks5.UDPExchange{ 189 | ClientAddr: addr, 190 | RemoteConn: rc, 191 | } 192 | if err := send(ue, d.Bytes()[3:]); err != nil { 193 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 194 | if ok { 195 | ch := v.(chan byte) 196 | ch <- 0x00 197 | } 198 | ue.RemoteConn.Close() 199 | return err 200 | } 201 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 202 | go func(ue *socks5.UDPExchange) { 203 | defer func() { 204 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 205 | if ok { 206 | ch := v.(chan byte) 207 | ch <- 0x00 208 | } 209 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 210 | ue.RemoteConn.Close() 211 | }() 212 | var b [65536]byte 213 | for { 214 | if s.UDPDeadline != 0 { 215 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 216 | log.Println(err) 217 | break 218 | } 219 | } 220 | n, err := ue.RemoteConn.Read(b[:]) 221 | if err != nil { 222 | log.Println(err) 223 | break 224 | } 225 | _, _, _, data, err := x.Decrypt(b[0:n]) 226 | if err != nil { 227 | log.Println(err) 228 | break 229 | } 230 | a, addr, port, err := socks5.ParseAddress(ue.ClientAddr.String()) 231 | if err != nil { 232 | log.Println(err) 233 | break 234 | } 235 | d1 := socks5.NewDatagram(a, addr, port, data) 236 | if _, err := s.UDPConn.WriteToUDP(d1.Bytes(), ue.ClientAddr); err != nil { 237 | log.Println(err) 238 | break 239 | } 240 | } 241 | }(ue) 242 | return nil 243 | } 244 | 245 | // ListenAndServeHTTP will let client start a http proxy 246 | // m can be nil 247 | func (x *SSClient) ListenAndServeHTTP() error { 248 | var err error 249 | x.TCPListen, err = net.ListenTCP("tcp", x.Server.TCPAddr) 250 | if err != nil { 251 | return nil 252 | } 253 | for { 254 | c, err := x.TCPListen.AcceptTCP() 255 | if err != nil { 256 | return err 257 | } 258 | go func(c *net.TCPConn) { 259 | defer c.Close() 260 | if x.TCPTimeout != 0 { 261 | if err := c.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 262 | log.Println(err) 263 | return 264 | } 265 | } 266 | if x.TCPDeadline != 0 { 267 | if err := c.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 268 | log.Println(err) 269 | return 270 | } 271 | } 272 | if err := x.HTTPHandle(c); err != nil { 273 | log.Println(err) 274 | return 275 | } 276 | }(c) 277 | } 278 | } 279 | 280 | // HTTPHandle handle http request 281 | func (x *SSClient) HTTPHandle(c *net.TCPConn) error { 282 | b := make([]byte, 0, 1024) 283 | for { 284 | var b1 [1024]byte 285 | n, err := c.Read(b1[:]) 286 | if err != nil { 287 | return err 288 | } 289 | b = append(b, b1[:n]...) 290 | if bytes.Contains(b, []byte{0x0d, 0x0a, 0x0d, 0x0a}) { 291 | break 292 | } 293 | if len(b) >= 2083+18 { 294 | return errors.New("HTTP header too long") 295 | } 296 | } 297 | bb := bytes.SplitN(b, []byte(" "), 3) 298 | if len(bb) != 3 { 299 | return errors.New("Invalid Request") 300 | } 301 | method, aoru := string(bb[0]), string(bb[1]) 302 | var addr string 303 | if method == "CONNECT" { 304 | addr = aoru 305 | } 306 | if method != "CONNECT" { 307 | var err error 308 | addr, err = xx.GetAddressFromURL(aoru) 309 | if err != nil { 310 | return err 311 | } 312 | } 313 | 314 | if x.HTTPMiddleman != nil { 315 | if done, err := x.HTTPMiddleman.Handle(method, addr, b, c); err != nil || done { 316 | return err 317 | } 318 | } 319 | 320 | a, h, p, err := socks5.ParseAddress(addr) 321 | if err != nil { 322 | return err 323 | } 324 | tmp, err := Dial.Dial("tcp", x.RemoteAddr) 325 | if err != nil { 326 | return err 327 | } 328 | rc := tmp.(*net.TCPConn) 329 | defer rc.Close() 330 | if x.TCPTimeout != 0 { 331 | if err := rc.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 332 | return err 333 | } 334 | } 335 | if x.TCPDeadline != 0 { 336 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 337 | return err 338 | } 339 | } 340 | crc, err := x.WrapCipherConn(rc) 341 | if err != nil { 342 | return err 343 | } 344 | 345 | rawaddr := make([]byte, 0) 346 | rawaddr = append(rawaddr, a) 347 | rawaddr = append(rawaddr, h...) 348 | rawaddr = append(rawaddr, p...) 349 | if _, err := crc.Write(rawaddr); err != nil { 350 | return err 351 | } 352 | if method == "CONNECT" { 353 | _, err := c.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n")) 354 | if err != nil { 355 | return err 356 | } 357 | } 358 | if method != "CONNECT" { 359 | if _, err := crc.Write(b); err != nil { 360 | return err 361 | } 362 | } 363 | 364 | // TODO 365 | go func() { 366 | iv := make([]byte, aes.BlockSize) 367 | if _, err := io.ReadFull(crc, iv); err != nil { 368 | log.Println(err) 369 | return 370 | } 371 | _, _ = io.Copy(c, crc) 372 | }() 373 | _, _ = io.Copy(crc, c) 374 | return nil 375 | } 376 | 377 | // WrapChiperConn make a chiper conn 378 | func (x *SSClient) WrapCipherConn(conn *net.TCPConn) (*CipherConn, error) { 379 | iv := make([]byte, aes.BlockSize) 380 | if _, err := io.ReadFull(rand.Reader, iv); err != nil { 381 | return nil, err 382 | } 383 | if _, err := conn.Write(iv); err != nil { 384 | return nil, err 385 | } 386 | return NewCipherConn(conn, x.Password, iv) 387 | } 388 | 389 | // Encrypt data 390 | func (x *SSClient) Encrypt(rawdata []byte) ([]byte, error) { 391 | return xx.AESCFBEncrypt(rawdata, x.Password) 392 | } 393 | 394 | // Decrypt data 395 | func (x *SSClient) Decrypt(cd []byte) (a byte, addr, port, data []byte, err error) { 396 | var bb []byte 397 | bb, err = xx.AESCFBDecrypt(cd, x.Password) 398 | if err != nil { 399 | return 400 | } 401 | err = errors.New("Data length error") 402 | n := len(bb) 403 | minl := 1 404 | if n < minl { 405 | return 406 | } 407 | if bb[0] == socks5.ATYPIPv4 { 408 | minl += 4 409 | if n < minl { 410 | return 411 | } 412 | addr = bb[minl-4 : minl] 413 | } else if bb[0] == socks5.ATYPIPv6 { 414 | minl += 16 415 | if n < minl { 416 | return 417 | } 418 | addr = bb[minl-16 : minl] 419 | } else if bb[0] == socks5.ATYPDomain { 420 | minl += 1 421 | if n < minl { 422 | return 423 | } 424 | l := bb[1] 425 | if l == 0 { 426 | return 427 | } 428 | minl += int(l) 429 | if n < minl { 430 | return 431 | } 432 | addr = bb[minl-int(l) : minl] 433 | addr = append([]byte{l}, addr...) 434 | } else { 435 | return 436 | } 437 | minl += 2 438 | if n <= minl { 439 | return 440 | } 441 | a = bb[0] 442 | port = bb[minl-2 : minl] 443 | data = bb[minl:] 444 | err = nil 445 | return 446 | } 447 | 448 | // Shutdown used to stop the client 449 | func (x *SSClient) Shutdown() error { 450 | return x.Server.Stop() 451 | } 452 | -------------------------------------------------------------------------------- /client.go: -------------------------------------------------------------------------------- 1 | package brook 2 | 3 | import ( 4 | "bytes" 5 | "errors" 6 | "io" 7 | "log" 8 | "net" 9 | "time" 10 | 11 | cache "github.com/patrickmn/go-cache" 12 | "github.com/txthinking/brook/plugin" 13 | "github.com/txthinking/socks5" 14 | xx "github.com/txthinking/x" 15 | ) 16 | 17 | // Client 18 | type Client struct { 19 | Server *socks5.Server 20 | RemoteAddr string 21 | Password []byte 22 | TCPTimeout int 23 | TCPDeadline int 24 | UDPDeadline int 25 | TCPListen *net.TCPListener 26 | Socks5Middleman plugin.Socks5Middleman 27 | HTTPMiddleman plugin.HTTPMiddleman 28 | } 29 | 30 | // NewClient returns a new Client 31 | func NewClient(addr, ip, server, password string, tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime int) (*Client, error) { 32 | s5, err := socks5.NewClassicServer(addr, ip, "", "", tcpTimeout, tcpDeadline, udpDeadline, udpSessionTime) 33 | if err != nil { 34 | return nil, err 35 | } 36 | x := &Client{ 37 | RemoteAddr: server, 38 | Server: s5, 39 | Password: []byte(password), 40 | TCPTimeout: tcpTimeout, 41 | TCPDeadline: tcpDeadline, 42 | UDPDeadline: udpDeadline, 43 | } 44 | return x, nil 45 | } 46 | 47 | // SetSocks5Middleman sets socks5middleman plugin 48 | func (x *Client) SetSocks5Middleman(m plugin.Socks5Middleman) { 49 | x.Socks5Middleman = m 50 | } 51 | 52 | // SetHTTPMiddleman sets httpmiddleman plugin 53 | func (x *Client) SetHTTPMiddleman(m plugin.HTTPMiddleman) { 54 | x.HTTPMiddleman = m 55 | } 56 | 57 | // ListenAndServe will let client start a socks5 proxy 58 | // sm can be nil 59 | func (x *Client) ListenAndServe() error { 60 | return x.Server.Run(x) 61 | } 62 | 63 | // TCPHandle handles tcp request 64 | func (x *Client) TCPHandle(s *socks5.Server, c *net.TCPConn, r *socks5.Request) error { 65 | if x.Socks5Middleman != nil { 66 | done, err := x.Socks5Middleman.TCPHandle(s, c, r) 67 | if err != nil { 68 | if done { 69 | return err 70 | } 71 | return ErrorReply(r, c, err) 72 | } 73 | if done { 74 | return nil 75 | } 76 | } 77 | 78 | if r.Cmd == socks5.CmdConnect { 79 | tmp, err := Dial.Dial("tcp", x.RemoteAddr) 80 | if err != nil { 81 | return ErrorReply(r, c, err) 82 | } 83 | rc := tmp.(*net.TCPConn) 84 | defer rc.Close() 85 | if x.TCPTimeout != 0 { 86 | if err := rc.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 87 | return ErrorReply(r, c, err) 88 | } 89 | } 90 | if x.TCPDeadline != 0 { 91 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 92 | return ErrorReply(r, c, err) 93 | } 94 | } 95 | 96 | k, n, err := PrepareKey(x.Password) 97 | if err != nil { 98 | return ErrorReply(r, c, err) 99 | } 100 | if _, err := rc.Write(n); err != nil { 101 | return ErrorReply(r, c, err) 102 | } 103 | 104 | rawaddr := make([]byte, 0, 7) 105 | rawaddr = append(rawaddr, r.Atyp) 106 | rawaddr = append(rawaddr, r.DstAddr...) 107 | rawaddr = append(rawaddr, r.DstPort...) 108 | n, err = WriteTo(rc, rawaddr, k, n, true) 109 | if err != nil { 110 | return ErrorReply(r, c, err) 111 | } 112 | 113 | a, address, port, err := socks5.ParseAddress(rc.LocalAddr().String()) 114 | if err != nil { 115 | return ErrorReply(r, c, err) 116 | } 117 | rp := socks5.NewReply(socks5.RepSuccess, a, address, port) 118 | if err := rp.WriteTo(c); err != nil { 119 | return err 120 | } 121 | 122 | go func() { 123 | n := make([]byte, 12) 124 | if _, err := io.ReadFull(rc, n); err != nil { 125 | return 126 | } 127 | k, err := GetKey(x.Password, n) 128 | if err != nil { 129 | log.Println(err) 130 | return 131 | } 132 | var b []byte 133 | for { 134 | if x.TCPDeadline != 0 { 135 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 136 | return 137 | } 138 | } 139 | b, n, err = ReadFrom(rc, k, n, false) 140 | if err != nil { 141 | return 142 | } 143 | if _, err := c.Write(b); err != nil { 144 | return 145 | } 146 | } 147 | }() 148 | 149 | var b [1024 * 2]byte 150 | for { 151 | if x.TCPDeadline != 0 { 152 | if err := c.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 153 | return nil 154 | } 155 | } 156 | i, err := c.Read(b[:]) 157 | if err != nil { 158 | return nil 159 | } 160 | n, err = WriteTo(rc, b[0:i], k, n, false) 161 | if err != nil { 162 | return nil 163 | } 164 | } 165 | return nil 166 | } 167 | if r.Cmd == socks5.CmdUDP { 168 | caddr, err := r.UDP(c, x.Server.ServerAddr) 169 | if err != nil { 170 | return err 171 | } 172 | _, p, err := net.SplitHostPort(caddr.String()) 173 | if err != nil { 174 | return err 175 | } 176 | if p == "0" { 177 | time.Sleep(time.Duration(x.Server.UDPSessionTime) * time.Second) 178 | return nil 179 | } 180 | ch := make(chan byte) 181 | x.Server.TCPUDPAssociate.Set(caddr.String(), ch, cache.DefaultExpiration) 182 | <-ch 183 | return nil 184 | } 185 | return socks5.ErrUnsupportCmd 186 | } 187 | 188 | // UDPHandle handles udp request 189 | func (x *Client) UDPHandle(s *socks5.Server, addr *net.UDPAddr, d *socks5.Datagram) error { 190 | if x.Socks5Middleman != nil { 191 | if done, err := x.Socks5Middleman.UDPHandle(s, addr, d); err != nil || done { 192 | return err 193 | } 194 | } 195 | 196 | send := func(ue *socks5.UDPExchange, data []byte) error { 197 | cd, err := Encrypt(x.Password, data) 198 | if err != nil { 199 | return err 200 | } 201 | _, err = ue.RemoteConn.Write(cd) 202 | if err != nil { 203 | return err 204 | } 205 | return nil 206 | } 207 | 208 | var ue *socks5.UDPExchange 209 | iue, ok := s.UDPExchanges.Get(addr.String()) 210 | if ok { 211 | ue = iue.(*socks5.UDPExchange) 212 | return send(ue, d.Bytes()[3:]) 213 | } 214 | 215 | c, err := Dial.Dial("udp", x.RemoteAddr) 216 | if err != nil { 217 | v, ok := s.TCPUDPAssociate.Get(addr.String()) 218 | if ok { 219 | ch := v.(chan byte) 220 | ch <- 0x00 221 | s.TCPUDPAssociate.Delete(addr.String()) 222 | } 223 | return err 224 | } 225 | rc := c.(*net.UDPConn) 226 | ue = &socks5.UDPExchange{ 227 | ClientAddr: addr, 228 | RemoteConn: rc, 229 | } 230 | if err := send(ue, d.Bytes()[3:]); err != nil { 231 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 232 | if ok { 233 | ch := v.(chan byte) 234 | ch <- 0x00 235 | s.TCPUDPAssociate.Delete(ue.ClientAddr.String()) 236 | } 237 | ue.RemoteConn.Close() 238 | return err 239 | } 240 | s.UDPExchanges.Set(ue.ClientAddr.String(), ue, cache.DefaultExpiration) 241 | go func(ue *socks5.UDPExchange) { 242 | defer func() { 243 | v, ok := s.TCPUDPAssociate.Get(ue.ClientAddr.String()) 244 | if ok { 245 | ch := v.(chan byte) 246 | ch <- 0x00 247 | } 248 | s.UDPExchanges.Delete(ue.ClientAddr.String()) 249 | ue.RemoteConn.Close() 250 | }() 251 | var b [65536]byte 252 | for { 253 | if s.UDPDeadline != 0 { 254 | if err := ue.RemoteConn.SetDeadline(time.Now().Add(time.Duration(s.UDPDeadline) * time.Second)); err != nil { 255 | break 256 | } 257 | } 258 | n, err := ue.RemoteConn.Read(b[:]) 259 | if err != nil { 260 | break 261 | } 262 | _, _, _, data, err := Decrypt(x.Password, b[0:n]) 263 | if err != nil { 264 | log.Println(err) 265 | break 266 | } 267 | a, addr, port, err := socks5.ParseAddress(ue.ClientAddr.String()) 268 | if err != nil { 269 | log.Println(err) 270 | break 271 | } 272 | d1 := socks5.NewDatagram(a, addr, port, data) 273 | if _, err := s.UDPConn.WriteToUDP(d1.Bytes(), ue.ClientAddr); err != nil { 274 | break 275 | } 276 | } 277 | }(ue) 278 | return nil 279 | } 280 | 281 | // ListenAndServeHTTP will let client start a http proxy 282 | func (x *Client) ListenAndServeHTTP() error { 283 | var err error 284 | x.TCPListen, err = net.ListenTCP("tcp", x.Server.TCPAddr) 285 | if err != nil { 286 | return nil 287 | } 288 | for { 289 | c, err := x.TCPListen.AcceptTCP() 290 | if err != nil { 291 | return err 292 | } 293 | go func(c *net.TCPConn) { 294 | defer c.Close() 295 | if x.TCPTimeout != 0 { 296 | if err := c.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 297 | log.Println(err) 298 | return 299 | } 300 | } 301 | if x.TCPDeadline != 0 { 302 | if err := c.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 303 | log.Println(err) 304 | return 305 | } 306 | } 307 | if err := x.HTTPHandle(c); err != nil { 308 | log.Println(err) 309 | return 310 | } 311 | }(c) 312 | } 313 | } 314 | 315 | // HTTPHandle handle http request 316 | func (x *Client) HTTPHandle(c *net.TCPConn) error { 317 | b := make([]byte, 0, 1024) 318 | for { 319 | var b1 [1024]byte 320 | n, err := c.Read(b1[:]) 321 | if err != nil { 322 | return err 323 | } 324 | b = append(b, b1[:n]...) 325 | if bytes.Contains(b, []byte{0x0d, 0x0a, 0x0d, 0x0a}) { 326 | break 327 | } 328 | if len(b) >= 2083+18 { 329 | return errors.New("HTTP header too long") 330 | } 331 | } 332 | bb := bytes.SplitN(b, []byte(" "), 3) 333 | if len(bb) != 3 { 334 | return errors.New("Invalid Request") 335 | } 336 | method, aoru := string(bb[0]), string(bb[1]) 337 | var addr string 338 | if method == "CONNECT" { 339 | addr = aoru 340 | } 341 | if method != "CONNECT" { 342 | var err error 343 | addr, err = xx.GetAddressFromURL(aoru) 344 | if err != nil { 345 | return err 346 | } 347 | } 348 | 349 | if x.HTTPMiddleman != nil { 350 | if done, err := x.HTTPMiddleman.Handle(method, addr, b, c); err != nil || done { 351 | return err 352 | } 353 | } 354 | 355 | tmp, err := Dial.Dial("tcp", x.RemoteAddr) 356 | if err != nil { 357 | return err 358 | } 359 | rc := tmp.(*net.TCPConn) 360 | defer rc.Close() 361 | if x.TCPTimeout != 0 { 362 | if err := rc.SetKeepAlivePeriod(time.Duration(x.TCPTimeout) * time.Second); err != nil { 363 | return err 364 | } 365 | } 366 | if x.TCPDeadline != 0 { 367 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 368 | return err 369 | } 370 | } 371 | 372 | k, n, err := PrepareKey(x.Password) 373 | if err != nil { 374 | return err 375 | } 376 | if _, err := rc.Write(n); err != nil { 377 | return err 378 | } 379 | 380 | a, h, p, err := socks5.ParseAddress(addr) 381 | if err != nil { 382 | return err 383 | } 384 | rawaddr := make([]byte, 0, 7) 385 | rawaddr = append(rawaddr, a) 386 | rawaddr = append(rawaddr, h...) 387 | rawaddr = append(rawaddr, p...) 388 | n, err = WriteTo(rc, rawaddr, k, n, true) 389 | if err != nil { 390 | return err 391 | } 392 | 393 | if method == "CONNECT" { 394 | _, err := c.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n")) 395 | if err != nil { 396 | return err 397 | } 398 | } 399 | if method != "CONNECT" { 400 | n, err = WriteTo(rc, b, k, n, false) 401 | if err != nil { 402 | return err 403 | } 404 | } 405 | 406 | go func() { 407 | n := make([]byte, 12) 408 | if _, err := io.ReadFull(rc, n); err != nil { 409 | return 410 | } 411 | k, err := GetKey(x.Password, n) 412 | if err != nil { 413 | log.Println(err) 414 | return 415 | } 416 | var b []byte 417 | for { 418 | if x.TCPDeadline != 0 { 419 | if err := rc.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 420 | return 421 | } 422 | } 423 | b, n, err = ReadFrom(rc, k, n, false) 424 | if err != nil { 425 | return 426 | } 427 | if _, err := c.Write(b); err != nil { 428 | return 429 | } 430 | } 431 | }() 432 | 433 | var bf [1024 * 2]byte 434 | for { 435 | if x.TCPDeadline != 0 { 436 | if err := c.SetDeadline(time.Now().Add(time.Duration(x.TCPDeadline) * time.Second)); err != nil { 437 | return nil 438 | } 439 | } 440 | i, err := c.Read(bf[:]) 441 | if err != nil { 442 | return nil 443 | } 444 | n, err = WriteTo(rc, bf[0:i], k, n, false) 445 | if err != nil { 446 | return nil 447 | } 448 | } 449 | return nil 450 | } 451 | 452 | // Shutdown used to stop the client 453 | func (x *Client) Shutdown() error { 454 | return x.Server.Stop() 455 | } 456 | -------------------------------------------------------------------------------- /cli/brook/main.go: -------------------------------------------------------------------------------- 1 | package main 2 | 3 | import ( 4 | "errors" 5 | "log" 6 | "os" 7 | "strings" 8 | 9 | "net/http" 10 | _ "net/http/pprof" 11 | 12 | "github.com/txthinking/brook" 13 | "github.com/urfave/cli" 14 | ) 15 | 16 | var debug bool 17 | var debugAddress string 18 | 19 | func main() { 20 | app := cli.NewApp() 21 | app.Name = "Brook" 22 | app.Version = "20181212" 23 | app.Usage = "A Cross-Platform Proxy/VPN Software" 24 | app.Author = "Cloud" 25 | app.Email = "cloud@txthinking.com" 26 | app.Flags = []cli.Flag{ 27 | cli.BoolFlag{ 28 | Name: "debug, d", 29 | Usage: "Enable debug", 30 | Destination: &debug, 31 | }, 32 | cli.StringFlag{ 33 | Name: "listen, l", 34 | Usage: "Listen address for debug", 35 | Value: ":6060", 36 | Destination: &debugAddress, 37 | }, 38 | } 39 | app.Commands = []cli.Command{ 40 | cli.Command{ 41 | Name: "server", 42 | Usage: "Run as server mode", 43 | Flags: []cli.Flag{ 44 | cli.StringFlag{ 45 | Name: "listen, l", 46 | Usage: "Server listen address, like: 0.0.0.0:1080", 47 | }, 48 | cli.StringFlag{ 49 | Name: "password, p", 50 | Usage: "Server password", 51 | }, 52 | cli.IntFlag{ 53 | Name: "tcpTimeout", 54 | Value: 60, 55 | Usage: "connection tcp keepalive timeout (s)", 56 | }, 57 | cli.IntFlag{ 58 | Name: "tcpDeadline", 59 | Value: 0, 60 | Usage: "connection deadline time (s)", 61 | }, 62 | cli.IntFlag{ 63 | Name: "udpDeadline", 64 | Value: 60, 65 | Usage: "connection deadline time (s)", 66 | }, 67 | }, 68 | Action: func(c *cli.Context) error { 69 | if c.String("listen") == "" || c.String("password") == "" { 70 | cli.ShowCommandHelp(c, "server") 71 | return nil 72 | } 73 | if debug { 74 | enableDebug() 75 | } 76 | return brook.RunServer(c.String("listen"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 77 | }, 78 | }, 79 | cli.Command{ 80 | Name: "servers", 81 | Usage: "Run as multiple servers mode", 82 | Flags: []cli.Flag{ 83 | cli.StringSliceFlag{ 84 | Name: "listenpassword, l", 85 | Usage: "server and password, like '0.0.0.0:1080 password'", 86 | }, 87 | cli.IntFlag{ 88 | Name: "tcpTimeout", 89 | Value: 60, 90 | Usage: "connection tcp keepalive timeout (s)", 91 | }, 92 | cli.IntFlag{ 93 | Name: "tcpDeadline", 94 | Value: 0, 95 | Usage: "connection deadline time (s)", 96 | }, 97 | cli.IntFlag{ 98 | Name: "udpDeadline", 99 | Value: 60, 100 | Usage: "connection deadline time (s)", 101 | }, 102 | }, 103 | Action: func(c *cli.Context) error { 104 | if len(c.StringSlice("listenpassword")) == 0 { 105 | cli.ShowCommandHelp(c, "servers") 106 | return nil 107 | } 108 | if debug { 109 | enableDebug() 110 | } 111 | errch := make(chan error) 112 | go func() { 113 | for _, v := range c.StringSlice("listenpassword") { 114 | ss := strings.Split(v, " ") 115 | if len(ss) != 2 { 116 | errch <- errors.New("Invalid listenpassword") 117 | return 118 | } 119 | go func() { 120 | errch <- brook.RunServer(ss[0], ss[1], c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 121 | }() 122 | } 123 | }() 124 | return <-errch 125 | }, 126 | }, 127 | cli.Command{ 128 | Name: "client", 129 | Usage: "Run as client mode", 130 | Flags: []cli.Flag{ 131 | cli.StringFlag{ 132 | Name: "listen, l", 133 | Usage: "Client listen address, like: 127.0.0.1:1080", 134 | }, 135 | cli.StringFlag{ 136 | Name: "ip, i", 137 | Usage: "Client IP address, like: 127.0.0.1", 138 | }, 139 | cli.StringFlag{ 140 | Name: "server, s", 141 | Usage: "Server address, like: 1.2.3.4:1080", 142 | }, 143 | cli.StringFlag{ 144 | Name: "password, p", 145 | Usage: "Server password", 146 | }, 147 | cli.IntFlag{ 148 | Name: "tcpTimeout", 149 | Value: 60, 150 | Usage: "connection tcp keepalive timeout (s)", 151 | }, 152 | cli.IntFlag{ 153 | Name: "tcpDeadline", 154 | Value: 0, 155 | Usage: "connection deadline time (s)", 156 | }, 157 | cli.IntFlag{ 158 | Name: "udpDeadline", 159 | Value: 60, 160 | Usage: "connection deadline time (s)", 161 | }, 162 | cli.IntFlag{ 163 | Name: "udpSessionTime", 164 | Value: 60, 165 | Usage: "udp session time (s), in most cases need this", 166 | }, 167 | cli.BoolFlag{ 168 | Name: "http", 169 | Usage: "If true, client start a http(s) proxy. default socks5", 170 | }, 171 | }, 172 | Action: func(c *cli.Context) error { 173 | if c.String("listen") == "" || c.String("ip") == "" || c.String("server") == "" || c.String("password") == "" { 174 | cli.ShowCommandHelp(c, "client") 175 | return nil 176 | } 177 | if debug { 178 | enableDebug() 179 | } 180 | if c.Bool("http") { 181 | return brook.RunClientAsHTTP(c.String("listen"), c.String("ip"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime")) 182 | } 183 | return brook.RunClient(c.String("listen"), c.String("ip"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime")) 184 | }, 185 | }, 186 | cli.Command{ 187 | Name: "tunnel", 188 | Usage: "Run as tunnel mode on client-site", 189 | Flags: []cli.Flag{ 190 | cli.StringFlag{ 191 | Name: "listen, l", 192 | Usage: "Client listen address, like: 127.0.0.1:1080", 193 | }, 194 | cli.StringFlag{ 195 | Name: "to, t", 196 | Usage: "Tunnel to where, like: 8.8.8.8:53", 197 | }, 198 | cli.StringFlag{ 199 | Name: "server, s", 200 | Usage: "Server address, like: 1.2.3.4:1080", 201 | }, 202 | cli.StringFlag{ 203 | Name: "password, p", 204 | Usage: "Server password", 205 | }, 206 | cli.IntFlag{ 207 | Name: "tcpTimeout", 208 | Value: 60, 209 | Usage: "connection tcp keepalive timeout (s)", 210 | }, 211 | cli.IntFlag{ 212 | Name: "tcpDeadline", 213 | Value: 0, 214 | Usage: "connection deadline time (s)", 215 | }, 216 | cli.IntFlag{ 217 | Name: "udpDeadline", 218 | Value: 60, 219 | Usage: "connection deadline time (s)", 220 | }, 221 | }, 222 | Action: func(c *cli.Context) error { 223 | if c.String("listen") == "" || c.String("to") == "" || c.String("server") == "" || c.String("password") == "" { 224 | cli.ShowCommandHelp(c, "tunnel") 225 | return nil 226 | } 227 | if debug { 228 | enableDebug() 229 | } 230 | return brook.RunTunnel(c.String("listen"), c.String("to"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 231 | }, 232 | }, 233 | cli.Command{ 234 | Name: "tproxy", 235 | Usage: "Run as tproxy mode on client-site, transparent proxy, only works on Linux", 236 | Flags: []cli.Flag{ 237 | cli.StringFlag{ 238 | Name: "listen, l", 239 | Usage: "Client listen address, like: 127.0.0.1:1080", 240 | }, 241 | cli.StringFlag{ 242 | Name: "server, s", 243 | Usage: "Server address, like: 1.2.3.4:1080", 244 | }, 245 | cli.StringFlag{ 246 | Name: "password, p", 247 | Usage: "Server password", 248 | }, 249 | cli.IntFlag{ 250 | Name: "tcpTimeout", 251 | Value: 60, 252 | Usage: "connection tcp keepalive timeout (s)", 253 | }, 254 | cli.IntFlag{ 255 | Name: "tcpDeadline", 256 | Value: 0, 257 | Usage: "connection deadline time (s)", 258 | }, 259 | cli.IntFlag{ 260 | Name: "udpDeadline", 261 | Value: 60, 262 | Usage: "connection deadline time (s)", 263 | }, 264 | }, 265 | Action: func(c *cli.Context) error { 266 | if c.String("listen") == "" || c.String("server") == "" || c.String("password") == "" { 267 | cli.ShowCommandHelp(c, "tproxy") 268 | return nil 269 | } 270 | if debug { 271 | enableDebug() 272 | } 273 | return brook.RunTproxy(c.String("listen"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 274 | }, 275 | }, 276 | cli.Command{ 277 | Name: "vpn", 278 | Usage: "Run as VPN mode on client-site", 279 | Flags: []cli.Flag{ 280 | cli.StringFlag{ 281 | Name: "listen, l", 282 | Usage: "Client listen address, must use 127.0.0.1, like: 127.0.0.1:1080", 283 | }, 284 | cli.StringFlag{ 285 | Name: "server, s", 286 | Usage: "Server address, must use IP, like: 1.2.3.4:1080", 287 | }, 288 | cli.StringFlag{ 289 | Name: "password, p", 290 | Usage: "Server password", 291 | }, 292 | cli.IntFlag{ 293 | Name: "tcpTimeout", 294 | Value: 60, 295 | Usage: "connection tcp keepalive timeout (s)", 296 | }, 297 | cli.IntFlag{ 298 | Name: "tcpDeadline", 299 | Value: 0, 300 | Usage: "connection deadline time (s)", 301 | }, 302 | cli.IntFlag{ 303 | Name: "udpDeadline", 304 | Value: 60, 305 | Usage: "connection deadline time (s)", 306 | }, 307 | cli.IntFlag{ 308 | Name: "udpSessionTime", 309 | Value: 60, 310 | Usage: "udp session time (s), in most cases need this", 311 | }, 312 | cli.StringFlag{ 313 | Name: "tunDevice", 314 | Usage: "tun name", 315 | Value: "tun0", 316 | }, 317 | cli.StringFlag{ 318 | Name: "tunIP", 319 | Usage: "tun IP", 320 | Value: "10.9.9.2", 321 | }, 322 | cli.StringFlag{ 323 | Name: "tunGateway", 324 | Usage: "tun gateway", 325 | Value: "10.9.9.1", 326 | }, 327 | cli.StringFlag{ 328 | Name: "tunMask", 329 | Usage: "tun mask", 330 | Value: "255.255.255.0", 331 | }, 332 | cli.StringFlag{ 333 | Name: "defaultGateway", 334 | Usage: "Your default gateway, Only needed on windows that are not utf8 encoded.", 335 | }, 336 | }, 337 | Action: func(c *cli.Context) error { 338 | if c.String("listen") == "" || c.String("server") == "" || c.String("password") == "" { 339 | cli.ShowCommandHelp(c, "vpn") 340 | return nil 341 | } 342 | if debug { 343 | enableDebug() 344 | } 345 | return brook.RunVPN(c.String("listen"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime"), c.String("tunDevice"), c.String("tunIP"), c.String("tunGateway"), c.String("tunMask"), c.String("defaultGateway")) 346 | }, 347 | }, 348 | cli.Command{ 349 | Name: "ssserver", 350 | Usage: "Run as shadowsocks server mode, fixed method is aes-256-cfb", 351 | Flags: []cli.Flag{ 352 | cli.StringFlag{ 353 | Name: "listen, l", 354 | Usage: "Server listen address, like: 0.0.0.0:1080", 355 | }, 356 | cli.StringFlag{ 357 | Name: "password, p", 358 | Usage: "Server password", 359 | }, 360 | cli.IntFlag{ 361 | Name: "tcpTimeout", 362 | Value: 60, 363 | Usage: "connection tcp keepalive timeout (s)", 364 | }, 365 | cli.IntFlag{ 366 | Name: "tcpDeadline", 367 | Value: 0, 368 | Usage: "connection deadline time (s)", 369 | }, 370 | cli.IntFlag{ 371 | Name: "udpDeadline", 372 | Value: 60, 373 | Usage: "connection deadline time (s)", 374 | }, 375 | }, 376 | Action: func(c *cli.Context) error { 377 | if c.String("listen") == "" || c.String("password") == "" { 378 | cli.ShowCommandHelp(c, "ssserver") 379 | return nil 380 | } 381 | if debug { 382 | enableDebug() 383 | } 384 | return brook.RunSSServer(c.String("listen"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 385 | }, 386 | }, 387 | cli.Command{ 388 | Name: "ssservers", 389 | Usage: "Run as shadowsocks multiple servers mode, fixed method is aes-256-cfb", 390 | Flags: []cli.Flag{ 391 | cli.StringSliceFlag{ 392 | Name: "listenpassword, l", 393 | Usage: "server address and password, like '0.0.0.0:1080 password'", 394 | }, 395 | cli.IntFlag{ 396 | Name: "tcpTimeout", 397 | Value: 60, 398 | Usage: "connection tcp keepalive timeout (s)", 399 | }, 400 | cli.IntFlag{ 401 | Name: "tcpDeadline", 402 | Value: 0, 403 | Usage: "connection deadline time (s)", 404 | }, 405 | cli.IntFlag{ 406 | Name: "udpDeadline", 407 | Value: 60, 408 | Usage: "connection deadline time (s)", 409 | }, 410 | }, 411 | Action: func(c *cli.Context) error { 412 | if len(c.StringSlice("listenpassword")) == 0 { 413 | cli.ShowCommandHelp(c, "ssservers") 414 | return nil 415 | } 416 | if debug { 417 | enableDebug() 418 | } 419 | errch := make(chan error) 420 | go func() { 421 | for _, v := range c.StringSlice("listenpassword") { 422 | ss := strings.Split(v, " ") 423 | if len(ss) != 2 { 424 | errch <- errors.New("Invalid listenpassword") 425 | return 426 | } 427 | go func() { 428 | errch <- brook.RunSSServer(ss[0], ss[1], c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 429 | }() 430 | } 431 | }() 432 | return <-errch 433 | }, 434 | }, 435 | cli.Command{ 436 | Name: "ssclient", 437 | Usage: "Run as shadowsocks client mode, fixed method is aes-256-cfb", 438 | Flags: []cli.Flag{ 439 | cli.StringFlag{ 440 | Name: "listen, l", 441 | Usage: "Client listen address, like: 127.0.0.1:1080", 442 | }, 443 | cli.StringFlag{ 444 | Name: "ip, i", 445 | Usage: "Client IP address, like: 127.0.0.1", 446 | }, 447 | cli.StringFlag{ 448 | Name: "server, s", 449 | Usage: "Server address, like: 1.2.3.4:1080", 450 | }, 451 | cli.StringFlag{ 452 | Name: "password, p", 453 | Usage: "Server password", 454 | }, 455 | cli.IntFlag{ 456 | Name: "tcpTimeout", 457 | Value: 60, 458 | Usage: "connection tcp keepalive timeout (s)", 459 | }, 460 | cli.IntFlag{ 461 | Name: "tcpDeadline", 462 | Value: 0, 463 | Usage: "connection deadline time (s)", 464 | }, 465 | cli.IntFlag{ 466 | Name: "udpDeadline", 467 | Value: 60, 468 | Usage: "connection deadline time (s)", 469 | }, 470 | cli.IntFlag{ 471 | Name: "udpSessionTime", 472 | Value: 60, 473 | Usage: "udp session time (s), in most cases need this", 474 | }, 475 | cli.BoolFlag{ 476 | Name: "http", 477 | Usage: "If true, client start a http(s) proxy. default socks5", 478 | }, 479 | }, 480 | Action: func(c *cli.Context) error { 481 | if c.String("listen") == "" || c.String("ip") == "" || c.String("server") == "" || c.String("password") == "" { 482 | cli.ShowCommandHelp(c, "ssclient") 483 | return nil 484 | } 485 | if debug { 486 | enableDebug() 487 | } 488 | if c.Bool("http") { 489 | return brook.RunSSClientAsHTTP(c.String("listen"), c.String("ip"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime")) 490 | } 491 | return brook.RunSSClient(c.String("listen"), c.String("ip"), c.String("server"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime")) 492 | }, 493 | }, 494 | cli.Command{ 495 | Name: "socks5", 496 | Usage: "Run as raw socks5 server", 497 | Flags: []cli.Flag{ 498 | cli.StringFlag{ 499 | Name: "listen, l", 500 | Usage: "Client listen address, like: 127.0.0.1:1080", 501 | }, 502 | cli.StringFlag{ 503 | Name: "ip, i", 504 | Usage: "Client IP address, like: 127.0.0.1", 505 | }, 506 | cli.StringFlag{ 507 | Name: "username", 508 | Usage: "User name, optional", 509 | }, 510 | cli.StringFlag{ 511 | Name: "password", 512 | Usage: "Password, optional", 513 | }, 514 | cli.IntFlag{ 515 | Name: "tcpTimeout", 516 | Value: 60, 517 | Usage: "connection tcp keepalive timeout (s)", 518 | }, 519 | cli.IntFlag{ 520 | Name: "tcpDeadline", 521 | Value: 0, 522 | Usage: "connection deadline time (s)", 523 | }, 524 | cli.IntFlag{ 525 | Name: "udpDeadline", 526 | Value: 60, 527 | Usage: "connection deadline time (s)", 528 | }, 529 | cli.IntFlag{ 530 | Name: "udpSessionTime", 531 | Value: 60, 532 | Usage: "udp session time (s), in most cases need this", 533 | }, 534 | }, 535 | Action: func(c *cli.Context) error { 536 | if c.String("listen") == "" || c.String("ip") == "" { 537 | cli.ShowCommandHelp(c, "socks5") 538 | return nil 539 | } 540 | if debug { 541 | enableDebug() 542 | } 543 | return brook.RunSocks5Server(c.String("listen"), c.String("ip"), c.String("username"), c.String("password"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline"), c.Int("udpSessionTime")) 544 | }, 545 | }, 546 | cli.Command{ 547 | Name: "relay", 548 | Usage: "Run as relay mode", 549 | Flags: []cli.Flag{ 550 | cli.StringFlag{ 551 | Name: "listen, l", 552 | Usage: "Relay server address: 0.0.0.0:1080", 553 | }, 554 | cli.StringFlag{ 555 | Name: "remote, r", 556 | Usage: "Server address, like: 1.2.3.4:1080", 557 | }, 558 | cli.IntFlag{ 559 | Name: "tcpTimeout", 560 | Value: 60, 561 | Usage: "connection tcp keepalive timeout (s)", 562 | }, 563 | cli.IntFlag{ 564 | Name: "tcpDeadline", 565 | Value: 0, 566 | Usage: "connection deadline time (s)", 567 | }, 568 | cli.IntFlag{ 569 | Name: "udpDeadline", 570 | Value: 60, 571 | Usage: "connection deadline time (s)", 572 | }, 573 | }, 574 | Action: func(c *cli.Context) error { 575 | if c.String("listen") == "" || c.String("remote") == "" { 576 | cli.ShowCommandHelp(c, "relay") 577 | return nil 578 | } 579 | if debug { 580 | enableDebug() 581 | } 582 | return brook.RunRelay(c.String("listen"), c.String("remote"), c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 583 | }, 584 | }, 585 | cli.Command{ 586 | Name: "relays", 587 | Usage: "Run as multiple relays mode", 588 | Flags: []cli.Flag{ 589 | cli.StringSliceFlag{ 590 | Name: "listenremote, l", 591 | Usage: "listen address and server address, like '0.0.0.0:1080 1.2.3.4:1080'", 592 | }, 593 | cli.IntFlag{ 594 | Name: "tcpTimeout", 595 | Value: 60, 596 | Usage: "connection tcp keepalive timeout (s)", 597 | }, 598 | cli.IntFlag{ 599 | Name: "tcpDeadline", 600 | Value: 0, 601 | Usage: "connection deadline time (s)", 602 | }, 603 | cli.IntFlag{ 604 | Name: "udpDeadline", 605 | Value: 60, 606 | Usage: "connection deadline time (s)", 607 | }, 608 | }, 609 | Action: func(c *cli.Context) error { 610 | if len(c.StringSlice("listenremote")) == 0 { 611 | cli.ShowCommandHelp(c, "relays") 612 | return nil 613 | } 614 | if debug { 615 | enableDebug() 616 | } 617 | errch := make(chan error) 618 | go func() { 619 | for _, v := range c.StringSlice("listenremote") { 620 | ss := strings.Split(v, " ") 621 | if len(ss) != 2 { 622 | errch <- errors.New("Invalid listenremote") 623 | return 624 | } 625 | go func() { 626 | errch <- brook.RunRelay(ss[0], ss[1], c.Int("tcpTimeout"), c.Int("tcpDeadline"), c.Int("udpDeadline")) 627 | }() 628 | } 629 | }() 630 | return <-errch 631 | }, 632 | }, 633 | cli.Command{ 634 | Name: "qr", 635 | Usage: "Print brook server QR code", 636 | Flags: []cli.Flag{ 637 | cli.StringFlag{ 638 | Name: "server, s", 639 | Usage: "Server address, like: 1.2.3.4:1080", 640 | }, 641 | cli.StringFlag{ 642 | Name: "password, p", 643 | Usage: "Server password", 644 | }, 645 | }, 646 | Action: func(c *cli.Context) error { 647 | if c.String("server") == "" || c.String("password") == "" { 648 | cli.ShowCommandHelp(c, "qr") 649 | return nil 650 | } 651 | brook.QR(c.String("server"), c.String("password")) 652 | return nil 653 | }, 654 | }, 655 | cli.Command{ 656 | Name: "socks5tohttp", 657 | Usage: "Convert socks5 to http proxy", 658 | Flags: []cli.Flag{ 659 | cli.StringFlag{ 660 | Name: "listen, l", 661 | Usage: "Client listen address: like: 127.0.0.1:8080", 662 | }, 663 | cli.StringFlag{ 664 | Name: "socks5, s", 665 | Usage: "Socks5 address", 666 | }, 667 | cli.IntFlag{ 668 | Name: "timeout", 669 | Value: 60, 670 | Usage: "connection tcp keepalive timeout (s)", 671 | }, 672 | cli.IntFlag{ 673 | Name: "deadline", 674 | Value: 0, 675 | Usage: "connection deadline time (s)", 676 | }, 677 | }, 678 | Action: func(c *cli.Context) error { 679 | if c.String("listen") == "" || c.String("socks5") == "" { 680 | cli.ShowCommandHelp(c, "socks5tohttp") 681 | return nil 682 | } 683 | if debug { 684 | enableDebug() 685 | } 686 | return brook.RunSocks5ToHTTP(c.String("listen"), c.String("socks5"), c.Int("timeout"), c.Int("deadline")) 687 | }, 688 | }, 689 | cli.Command{ 690 | Name: "systemproxy", 691 | Usage: "Set system proxy with pac url, or remove, only works on MacOS/Windows", 692 | Flags: []cli.Flag{ 693 | cli.StringFlag{ 694 | Name: "url, u", 695 | Usage: "Pac address: like: http://127.0.0.1/pac", 696 | }, 697 | cli.BoolFlag{ 698 | Name: "remove, r", 699 | Usage: "Remove pac url from system proxy", 700 | }, 701 | }, 702 | Action: func(c *cli.Context) error { 703 | if !c.Bool("remove") && c.String("url") == "" { 704 | cli.ShowCommandHelp(c, "systemproxy") 705 | return nil 706 | } 707 | return brook.RunSystemProxy(c.Bool("remove"), c.String("url")) 708 | }, 709 | }, 710 | } 711 | if err := app.Run(os.Args); err != nil { 712 | log.Fatal(err) 713 | } 714 | } 715 | 716 | func enableDebug() { 717 | go func() { 718 | log.Println(http.ListenAndServe(debugAddress, nil)) 719 | }() 720 | brook.EnableDebug() 721 | } 722 | -------------------------------------------------------------------------------- /OPENSOURCELICENSES: -------------------------------------------------------------------------------- 1 | ### addr-to-ip-port 2 | 3 | https://github.com/webtorrent/addr-to-ip-port 4 | 5 | The MIT License (MIT) 6 | 7 | Copyright (c) Feross Aboukhadijeh and WebTorrent, LLC 8 | 9 | Permission is hereby granted, free of charge, to any person obtaining a copy of 10 | this software and associated documentation files (the "Software"), to deal in 11 | the Software without restriction, including without limitation the rights to 12 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 13 | the Software, and to permit persons to whom the Software is furnished to do so, 14 | subject to the following conditions: 15 | 16 | The above copyright notice and this permission notice shall be included in all 17 | copies or substantial portions of the Software. 18 | 19 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 21 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 22 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 23 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 24 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 | 26 | ### x 27 | 28 | https://github.com/txthinking/x 29 | 30 | The MIT License (MIT) 31 | 32 | Copyright (c) 2013-present Cloud https://www.txthinking.com 33 | 34 | Permission is hereby granted, free of charge, to any person obtaining a copy of 35 | this software and associated documentation files (the "Software"), to deal in 36 | the Software without restriction, including without limitation the rights to 37 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 38 | the Software, and to permit persons to whom the Software is furnished to do so, 39 | subject to the following conditions: 40 | 41 | The above copyright notice and this permission notice shall be included in all 42 | copies or substantial portions of the Software. 43 | 44 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 45 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 46 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 47 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 48 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 49 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 50 | 51 | ### cli 52 | 53 | https://github.com/urfave/cli 54 | 55 | MIT License 56 | 57 | Copyright (c) 2016 Jeremy Saenz & Contributors 58 | 59 | Permission is hereby granted, free of charge, to any person obtaining a copy 60 | of this software and associated documentation files (the "Software"), to deal 61 | in the Software without restriction, including without limitation the rights 62 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 63 | copies of the Software, and to permit persons to whom the Software is 64 | furnished to do so, subject to the following conditions: 65 | 66 | The above copyright notice and this permission notice shall be included in all 67 | copies or substantial portions of the Software. 68 | 69 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 70 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 71 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 72 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 73 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 74 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 75 | SOFTWARE. 76 | 77 | ### electron 78 | 79 | https://github.com/electron/electron 80 | 81 | Copyright (c) 2013-2018 GitHub Inc. 82 | 83 | Permission is hereby granted, free of charge, to any person obtaining 84 | a copy of this software and associated documentation files (the 85 | "Software"), to deal in the Software without restriction, including 86 | without limitation the rights to use, copy, modify, merge, publish, 87 | distribute, sublicense, and/or sell copies of the Software, and to 88 | permit persons to whom the Software is furnished to do so, subject to 89 | the following conditions: 90 | 91 | The above copyright notice and this permission notice shall be 92 | included in all copies or substantial portions of the Software. 93 | 94 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 95 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 96 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 97 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 98 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 99 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 100 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 101 | 102 | ### electron-builder 103 | 104 | https://github.com/electron-userland/electron-builder 105 | 106 | The MIT License (MIT) 107 | 108 | Copyright (c) 2015 Loopline Systems 109 | 110 | Permission is hereby granted, free of charge, to any person obtaining a copy 111 | of this software and associated documentation files (the "Software"), to deal 112 | in the Software without restriction, including without limitation the rights 113 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 114 | copies of the Software, and to permit persons to whom the Software is 115 | furnished to do so, subject to the following conditions: 116 | 117 | The above copyright notice and this permission notice shall be included in all 118 | copies or substantial portions of the Software. 119 | 120 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 121 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 122 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 123 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 124 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 125 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 126 | SOFTWARE. 127 | 128 | ### electron-vue 129 | 130 | https://github.com/SimulatedGREG/electron-vue 131 | 132 | The MIT License (MIT) 133 | 134 | Copyright (c) 2016 Greg Holguin 135 | 136 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 137 | 138 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 139 | 140 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 141 | 142 | ### go-cache 143 | 144 | https://github.com/patrickmn/go-cache 145 | 146 | Copyright (c) 2012-2017 Patrick Mylund Nielsen and the go-cache contributors 147 | 148 | Permission is hereby granted, free of charge, to any person obtaining a copy 149 | of this software and associated documentation files (the "Software"), to deal 150 | in the Software without restriction, including without limitation the rights 151 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 152 | copies of the Software, and to permit persons to whom the Software is 153 | furnished to do so, subject to the following conditions: 154 | 155 | The above copyright notice and this permission notice shall be included in 156 | all copies or substantial portions of the Software. 157 | 158 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 159 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 160 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 161 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 162 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 163 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 164 | THE SOFTWARE. 165 | 166 | ### go-tproxy 167 | 168 | https://github.com/LiamHaworth/go-tproxy 169 | 170 | MIT License 171 | 172 | Copyright (c) 2017 Liam R. Haworth 173 | 174 | Permission is hereby granted, free of charge, to any person obtaining a copy 175 | of this software and associated documentation files (the "Software"), to deal 176 | in the Software without restriction, including without limitation the rights 177 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 178 | copies of the Software, and to permit persons to whom the Software is 179 | furnished to do so, subject to the following conditions: 180 | 181 | The above copyright notice and this permission notice shall be included in all 182 | copies or substantial portions of the Software. 183 | 184 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 185 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 186 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 187 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 188 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 189 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 190 | SOFTWARE. 191 | 192 | ### gotun2socks 193 | 194 | https://github.com/yinghuocho/gotun2socks 195 | 196 | Copyright (c) 2016, yinghuocho 197 | All rights reserved. 198 | 199 | Redistribution and use in source and binary forms, with or without 200 | modification, are permitted provided that the following conditions are met: 201 | 202 | * Redistributions of source code must retain the above copyright notice, this 203 | list of conditions and the following disclaimer. 204 | 205 | * Redistributions in binary form must reproduce the above copyright notice, 206 | this list of conditions and the following disclaimer in the documentation 207 | and/or other materials provided with the distribution. 208 | 209 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 210 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 211 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 212 | DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE 213 | FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 214 | DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 215 | SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 216 | CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 217 | OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 218 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 219 | 220 | ### mux 221 | 222 | https://github.com/gorilla/mux 223 | 224 | Copyright (c) 2012 Rodrigo Moraes. All rights reserved. 225 | 226 | Redistribution and use in source and binary forms, with or without 227 | modification, are permitted provided that the following conditions are 228 | met: 229 | 230 | * Redistributions of source code must retain the above copyright 231 | notice, this list of conditions and the following disclaimer. 232 | * Redistributions in binary form must reproduce the above 233 | copyright notice, this list of conditions and the following disclaimer 234 | in the documentation and/or other materials provided with the 235 | distribution. 236 | * Neither the name of Google Inc. nor the names of its 237 | contributors may be used to endorse or promote products derived from 238 | this software without specific prior written permission. 239 | 240 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 241 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 242 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 243 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 244 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 245 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 246 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 247 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 248 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 249 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 250 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 251 | 252 | ### negroni 253 | 254 | https://github.com/urfave/negroni 255 | 256 | The MIT License (MIT) 257 | 258 | Copyright (c) 2014 Jeremy Saenz 259 | 260 | Permission is hereby granted, free of charge, to any person obtaining a copy 261 | of this software and associated documentation files (the "Software"), to deal 262 | in the Software without restriction, including without limitation the rights 263 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 264 | copies of the Software, and to permit persons to whom the Software is 265 | furnished to do so, subject to the following conditions: 266 | 267 | The above copyright notice and this permission notice shall be included in all 268 | copies or substantial portions of the Software. 269 | 270 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 271 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 272 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 273 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 274 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 275 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 276 | SOFTWARE. 277 | 278 | ### net 279 | 280 | https://github.com/golang/net 281 | 282 | Copyright (c) 2009 The Go Authors. All rights reserved. 283 | 284 | Redistribution and use in source and binary forms, with or without 285 | modification, are permitted provided that the following conditions are 286 | met: 287 | 288 | * Redistributions of source code must retain the above copyright 289 | notice, this list of conditions and the following disclaimer. 290 | * Redistributions in binary form must reproduce the above 291 | copyright notice, this list of conditions and the following disclaimer 292 | in the documentation and/or other materials provided with the 293 | distribution. 294 | * Neither the name of Google Inc. nor the names of its 295 | contributors may be used to endorse or promote products derived from 296 | this software without specific prior written permission. 297 | 298 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 299 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 300 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 301 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 302 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 303 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 304 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 305 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 306 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 307 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 308 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 309 | 310 | ### open-golang 311 | 312 | https://github.com/skratchdot/open-golang 313 | 314 | Copyright (c) 2013 skratchdot 315 | 316 | Permission is hereby granted, free of charge, to any person 317 | obtaining a copy of this software and associated documentation 318 | files (the "Software"), to deal in the Software without 319 | restriction, including without limitation the rights to use, 320 | copy, modify, merge, publish, distribute, sublicense, and/or sell 321 | copies of the Software, and to permit persons to whom the 322 | Software is furnished to do so, subject to the following 323 | conditions: 324 | 325 | The above copyright notice and this permission notice shall be 326 | included in all copies or substantial portions of the Software. 327 | 328 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 329 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 330 | OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 331 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 332 | HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 333 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 334 | FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 335 | OTHER DEALINGS IN THE SOFTWARE. 336 | 337 | ### pac 338 | 339 | https://github.com/txthinking/pac 340 | 341 | The MIT License (MIT) 342 | 343 | Copyright (c) 2013 Cloud http://www.txthinking.com 344 | 345 | Permission is hereby granted, free of charge, to any person obtaining a copy of 346 | this software and associated documentation files (the "Software"), to deal in 347 | the Software without restriction, including without limitation the rights to 348 | use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of 349 | the Software, and to permit persons to whom the Software is furnished to do so, 350 | subject to the following conditions: 351 | 352 | The above copyright notice and this permission notice shall be included in all 353 | copies or substantial portions of the Software. 354 | 355 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 356 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 357 | FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 358 | COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 359 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 360 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 361 | 362 | ### socks5 363 | 364 | https://github.com/txthinking/socks5 365 | 366 | MIT License 367 | 368 | Copyright (c) 2015-present Cloud https://www.txthinking.com 369 | 370 | Permission is hereby granted, free of charge, to any person obtaining a copy 371 | of this software and associated documentation files (the "Software"), to deal 372 | in the Software without restriction, including without limitation the rights 373 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 374 | copies of the Software, and to permit persons to whom the Software is 375 | furnished to do so, subject to the following conditions: 376 | 377 | The above copyright notice and this permission notice shall be included in all 378 | copies or substantial portions of the Software. 379 | 380 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 381 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 382 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 383 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 384 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 385 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 386 | SOFTWARE. 387 | 388 | ### vue 389 | 390 | https://github.com/vuejs/vue 391 | 392 | The MIT License (MIT) 393 | 394 | Copyright (c) 2013-present, Yuxi (Evan) You 395 | 396 | Permission is hereby granted, free of charge, to any person obtaining a copy 397 | of this software and associated documentation files (the "Software"), to deal 398 | in the Software without restriction, including without limitation the rights 399 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 400 | copies of the Software, and to permit persons to whom the Software is 401 | furnished to do so, subject to the following conditions: 402 | 403 | The above copyright notice and this permission notice shall be included in 404 | all copies or substantial portions of the Software. 405 | 406 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 407 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 408 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 409 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 410 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 411 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 412 | THE SOFTWARE. 413 | 414 | ### vue-router 415 | 416 | https://github.com/vuejs/vue-router 417 | 418 | MIT License 419 | 420 | Copyright (c) 2013-present Evan You 421 | 422 | Permission is hereby granted, free of charge, to any person obtaining a copy 423 | of this software and associated documentation files (the "Software"), to deal 424 | in the Software without restriction, including without limitation the rights 425 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 426 | copies of the Software, and to permit persons to whom the Software is 427 | furnished to do so, subject to the following conditions: 428 | 429 | The above copyright notice and this permission notice shall be included in all 430 | copies or substantial portions of the Software. 431 | 432 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 433 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 434 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 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Such new versions will 567 | be similar in spirit to the present version, but may differ in detail to 568 | address new problems or concerns. 569 | 570 | Each version is given a distinguishing version number. If the 571 | Program specifies that a certain numbered version of the GNU General 572 | Public License "or any later version" applies to it, you have the 573 | option of following the terms and conditions either of that numbered 574 | version or of any later version published by the Free Software 575 | Foundation. If the Program does not specify a version number of the 576 | GNU General Public License, you may choose any version ever published 577 | by the Free Software Foundation. 578 | 579 | If the Program specifies that a proxy can decide which future 580 | versions of the GNU General Public License can be used, that proxy's 581 | public statement of acceptance of a version permanently authorizes you 582 | to choose that version for the Program. 583 | 584 | Later license versions may give you additional or different 585 | permissions. However, no additional obligations are imposed on any 586 | author or copyright holder as a result of your choosing to follow a 587 | later version. 588 | 589 | 15. Disclaimer of Warranty. 590 | 591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY 592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | --------------------------------------------------------------------------------