From 14bb08c1df8db9ec6c8a05520d4eee67971235d9 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Thu, 27 Sep 2018 20:03:23 +0200 Subject: mod tidy --- vendor/golang.org/x/net/internal/socks/client.go | 168 ------------ vendor/golang.org/x/net/internal/socks/socks.go | 316 ----------------------- 2 files changed, 484 deletions(-) delete mode 100644 vendor/golang.org/x/net/internal/socks/client.go delete mode 100644 vendor/golang.org/x/net/internal/socks/socks.go (limited to 'vendor/golang.org/x/net/internal/socks') diff --git a/vendor/golang.org/x/net/internal/socks/client.go b/vendor/golang.org/x/net/internal/socks/client.go deleted file mode 100644 index 3d6f516..0000000 --- a/vendor/golang.org/x/net/internal/socks/client.go +++ /dev/null @@ -1,168 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package socks - -import ( - "context" - "errors" - "io" - "net" - "strconv" - "time" -) - -var ( - noDeadline = time.Time{} - aLongTimeAgo = time.Unix(1, 0) -) - -func (d *Dialer) connect(ctx context.Context, c net.Conn, address string) (_ net.Addr, ctxErr error) { - host, port, err := splitHostPort(address) - if err != nil { - return nil, err - } - if deadline, ok := ctx.Deadline(); ok && !deadline.IsZero() { - c.SetDeadline(deadline) - defer c.SetDeadline(noDeadline) - } - if ctx != context.Background() { - errCh := make(chan error, 1) - done := make(chan struct{}) - defer func() { - close(done) - if ctxErr == nil { - ctxErr = <-errCh - } - }() - go func() { - select { - case <-ctx.Done(): - c.SetDeadline(aLongTimeAgo) - errCh <- ctx.Err() - case <-done: - errCh <- nil - } - }() - } - - b := make([]byte, 0, 6+len(host)) // the size here is just an estimate - b = append(b, Version5) - if len(d.AuthMethods) == 0 || d.Authenticate == nil { - b = append(b, 1, byte(AuthMethodNotRequired)) - } else { - ams := d.AuthMethods - if len(ams) > 255 { - return nil, errors.New("too many authentication methods") - } - b = append(b, byte(len(ams))) - for _, am := range ams { - b = append(b, byte(am)) - } - } - if _, ctxErr = c.Write(b); ctxErr != nil { - return - } - - if _, ctxErr = io.ReadFull(c, b[:2]); ctxErr != nil { - return - } - if b[0] != Version5 { - return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0]))) - } - am := AuthMethod(b[1]) - if am == AuthMethodNoAcceptableMethods { - return nil, errors.New("no acceptable authentication methods") - } - if d.Authenticate != nil { - if ctxErr = d.Authenticate(ctx, c, am); ctxErr != nil { - return - } - } - - b = b[:0] - b = append(b, Version5, byte(d.cmd), 0) - if ip := net.ParseIP(host); ip != nil { - if ip4 := ip.To4(); ip4 != nil { - b = append(b, AddrTypeIPv4) - b = append(b, ip4...) - } else if ip6 := ip.To16(); ip6 != nil { - b = append(b, AddrTypeIPv6) - b = append(b, ip6...) - } else { - return nil, errors.New("unknown address type") - } - } else { - if len(host) > 255 { - return nil, errors.New("FQDN too long") - } - b = append(b, AddrTypeFQDN) - b = append(b, byte(len(host))) - b = append(b, host...) - } - b = append(b, byte(port>>8), byte(port)) - if _, ctxErr = c.Write(b); ctxErr != nil { - return - } - - if _, ctxErr = io.ReadFull(c, b[:4]); ctxErr != nil { - return - } - if b[0] != Version5 { - return nil, errors.New("unexpected protocol version " + strconv.Itoa(int(b[0]))) - } - if cmdErr := Reply(b[1]); cmdErr != StatusSucceeded { - return nil, errors.New("unknown error " + cmdErr.String()) - } - if b[2] != 0 { - return nil, errors.New("non-zero reserved field") - } - l := 2 - var a Addr - switch b[3] { - case AddrTypeIPv4: - l += net.IPv4len - a.IP = make(net.IP, net.IPv4len) - case AddrTypeIPv6: - l += net.IPv6len - a.IP = make(net.IP, net.IPv6len) - case AddrTypeFQDN: - if _, err := io.ReadFull(c, b[:1]); err != nil { - return nil, err - } - l += int(b[0]) - default: - return nil, errors.New("unknown address type " + strconv.Itoa(int(b[3]))) - } - if cap(b) < l { - b = make([]byte, l) - } else { - b = b[:l] - } - if _, ctxErr = io.ReadFull(c, b); ctxErr != nil { - return - } - if a.IP != nil { - copy(a.IP, b) - } else { - a.Name = string(b[:len(b)-2]) - } - a.Port = int(b[len(b)-2])<<8 | int(b[len(b)-1]) - return &a, nil -} - -func splitHostPort(address string) (string, int, error) { - host, port, err := net.SplitHostPort(address) - if err != nil { - return "", 0, err - } - portnum, err := strconv.Atoi(port) - if err != nil { - return "", 0, err - } - if 1 > portnum || portnum > 0xffff { - return "", 0, errors.New("port number out of range " + port) - } - return host, portnum, nil -} diff --git a/vendor/golang.org/x/net/internal/socks/socks.go b/vendor/golang.org/x/net/internal/socks/socks.go deleted file mode 100644 index d93e699..0000000 --- a/vendor/golang.org/x/net/internal/socks/socks.go +++ /dev/null @@ -1,316 +0,0 @@ -// Copyright 2018 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package socks provides a SOCKS version 5 client implementation. -// -// SOCKS protocol version 5 is defined in RFC 1928. -// Username/Password authentication for SOCKS version 5 is defined in -// RFC 1929. -package socks - -import ( - "context" - "errors" - "io" - "net" - "strconv" -) - -// A Command represents a SOCKS command. -type Command int - -func (cmd Command) String() string { - switch cmd { - case CmdConnect: - return "socks connect" - case cmdBind: - return "socks bind" - default: - return "socks " + strconv.Itoa(int(cmd)) - } -} - -// An AuthMethod represents a SOCKS authentication method. -type AuthMethod int - -// A Reply represents a SOCKS command reply code. -type Reply int - -func (code Reply) String() string { - switch code { - case StatusSucceeded: - return "succeeded" - case 0x01: - return "general SOCKS server failure" - case 0x02: - return "connection not allowed by ruleset" - case 0x03: - return "network unreachable" - case 0x04: - return "host unreachable" - case 0x05: - return "connection refused" - case 0x06: - return "TTL expired" - case 0x07: - return "command not supported" - case 0x08: - return "address type not supported" - default: - return "unknown code: " + strconv.Itoa(int(code)) - } -} - -// Wire protocol constants. -const ( - Version5 = 0x05 - - AddrTypeIPv4 = 0x01 - AddrTypeFQDN = 0x03 - AddrTypeIPv6 = 0x04 - - CmdConnect Command = 0x01 // establishes an active-open forward proxy connection - cmdBind Command = 0x02 // establishes a passive-open forward proxy connection - - AuthMethodNotRequired AuthMethod = 0x00 // no authentication required - AuthMethodUsernamePassword AuthMethod = 0x02 // use username/password - AuthMethodNoAcceptableMethods AuthMethod = 0xff // no acceptable authentication methods - - StatusSucceeded Reply = 0x00 -) - -// An Addr represents a SOCKS-specific address. -// Either Name or IP is used exclusively. -type Addr struct { - Name string // fully-qualified domain name - IP net.IP - Port int -} - -func (a *Addr) Network() string { return "socks" } - -func (a *Addr) String() string { - if a == nil { - return "" - } - port := strconv.Itoa(a.Port) - if a.IP == nil { - return net.JoinHostPort(a.Name, port) - } - return net.JoinHostPort(a.IP.String(), port) -} - -// A Conn represents a forward proxy connection. -type Conn struct { - net.Conn - - boundAddr net.Addr -} - -// BoundAddr returns the address assigned by the proxy server for -// connecting to the command target address from the proxy server. -func (c *Conn) BoundAddr() net.Addr { - if c == nil { - return nil - } - return c.boundAddr -} - -// A Dialer holds SOCKS-specific options. -type Dialer struct { - cmd Command // either CmdConnect or cmdBind - proxyNetwork string // network between a proxy server and a client - proxyAddress string // proxy server address - - // ProxyDial specifies the optional dial function for - // establishing the transport connection. - ProxyDial func(context.Context, string, string) (net.Conn, error) - - // AuthMethods specifies the list of request authention - // methods. - // If empty, SOCKS client requests only AuthMethodNotRequired. - AuthMethods []AuthMethod - - // Authenticate specifies the optional authentication - // function. It must be non-nil when AuthMethods is not empty. - // It must return an error when the authentication is failed. - Authenticate func(context.Context, io.ReadWriter, AuthMethod) error -} - -// DialContext connects to the provided address on the provided -// network. -// -// The returned error value may be a net.OpError. When the Op field of -// net.OpError contains "socks", the Source field contains a proxy -// server address and the Addr field contains a command target -// address. -// -// See func Dial of the net package of standard library for a -// description of the network and address parameters. -func (d *Dialer) DialContext(ctx context.Context, network, address string) (net.Conn, error) { - if err := d.validateTarget(network, address); err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - if ctx == nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")} - } - var err error - var c net.Conn - if d.ProxyDial != nil { - c, err = d.ProxyDial(ctx, d.proxyNetwork, d.proxyAddress) - } else { - var dd net.Dialer - c, err = dd.DialContext(ctx, d.proxyNetwork, d.proxyAddress) - } - if err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - a, err := d.connect(ctx, c, address) - if err != nil { - c.Close() - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - return &Conn{Conn: c, boundAddr: a}, nil -} - -// DialWithConn initiates a connection from SOCKS server to the target -// network and address using the connection c that is already -// connected to the SOCKS server. -// -// It returns the connection's local address assigned by the SOCKS -// server. -func (d *Dialer) DialWithConn(ctx context.Context, c net.Conn, network, address string) (net.Addr, error) { - if err := d.validateTarget(network, address); err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - if ctx == nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: errors.New("nil context")} - } - a, err := d.connect(ctx, c, address) - if err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - return a, nil -} - -// Dial connects to the provided address on the provided network. -// -// Unlike DialContext, it returns a raw transport connection instead -// of a forward proxy connection. -// -// Deprecated: Use DialContext or DialWithConn instead. -func (d *Dialer) Dial(network, address string) (net.Conn, error) { - if err := d.validateTarget(network, address); err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - var err error - var c net.Conn - if d.ProxyDial != nil { - c, err = d.ProxyDial(context.Background(), d.proxyNetwork, d.proxyAddress) - } else { - c, err = net.Dial(d.proxyNetwork, d.proxyAddress) - } - if err != nil { - proxy, dst, _ := d.pathAddrs(address) - return nil, &net.OpError{Op: d.cmd.String(), Net: network, Source: proxy, Addr: dst, Err: err} - } - if _, err := d.DialWithConn(context.Background(), c, network, address); err != nil { - return nil, err - } - return c, nil -} - -func (d *Dialer) validateTarget(network, address string) error { - switch network { - case "tcp", "tcp6", "tcp4": - default: - return errors.New("network not implemented") - } - switch d.cmd { - case CmdConnect, cmdBind: - default: - return errors.New("command not implemented") - } - return nil -} - -func (d *Dialer) pathAddrs(address string) (proxy, dst net.Addr, err error) { - for i, s := range []string{d.proxyAddress, address} { - host, port, err := splitHostPort(s) - if err != nil { - return nil, nil, err - } - a := &Addr{Port: port} - a.IP = net.ParseIP(host) - if a.IP == nil { - a.Name = host - } - if i == 0 { - proxy = a - } else { - dst = a - } - } - return -} - -// NewDialer returns a new Dialer that dials through the provided -// proxy server's network and address. -func NewDialer(network, address string) *Dialer { - return &Dialer{proxyNetwork: network, proxyAddress: address, cmd: CmdConnect} -} - -const ( - authUsernamePasswordVersion = 0x01 - authStatusSucceeded = 0x00 -) - -// UsernamePassword are the credentials for the username/password -// authentication method. -type UsernamePassword struct { - Username string - Password string -} - -// Authenticate authenticates a pair of username and password with the -// proxy server. -func (up *UsernamePassword) Authenticate(ctx context.Context, rw io.ReadWriter, auth AuthMethod) error { - switch auth { - case AuthMethodNotRequired: - return nil - case AuthMethodUsernamePassword: - if len(up.Username) == 0 || len(up.Username) > 255 || len(up.Password) == 0 || len(up.Password) > 255 { - return errors.New("invalid username/password") - } - b := []byte{authUsernamePasswordVersion} - b = append(b, byte(len(up.Username))) - b = append(b, up.Username...) - b = append(b, byte(len(up.Password))) - b = append(b, up.Password...) - // TODO(mikio): handle IO deadlines and cancelation if - // necessary - if _, err := rw.Write(b); err != nil { - return err - } - if _, err := io.ReadFull(rw, b[:2]); err != nil { - return err - } - if b[0] != authUsernamePasswordVersion { - return errors.New("invalid username/password version") - } - if b[1] != authStatusSucceeded { - return errors.New("username/password authentication failed") - } - return nil - } - return errors.New("unsupported authentication method " + strconv.Itoa(int(auth))) -} -- cgit v1.2.3