mirror of
https://github.com/octoleo/syncthing.git
synced 2024-12-23 03:18:59 +00:00
God damn godeps
This commit is contained in:
parent
985ea29940
commit
db494f2afc
8
Godeps/Godeps.json
generated
8
Godeps/Godeps.json
generated
@ -64,11 +64,15 @@
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},
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{
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"ImportPath": "golang.org/x/net/internal/iana",
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"Rev": "db8e4de5b2d6653f66aea53094624468caad15d2"
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"Rev": "4b709d93778b93d2f34943e3142c71578d83ad31"
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},
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{
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"ImportPath": "golang.org/x/net/ipv6",
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"Rev": "db8e4de5b2d6653f66aea53094624468caad15d2"
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"Rev": "4b709d93778b93d2f34943e3142c71578d83ad31"
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},
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{
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"ImportPath": "golang.org/x/net/proxy",
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"Rev": "4b709d93778b93d2f34943e3142c71578d83ad31"
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},
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{
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"ImportPath": "golang.org/x/text/transform",
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|
2
Godeps/_workspace/src/golang.org/x/net/internal/iana/const.go
generated
vendored
2
Godeps/_workspace/src/golang.org/x/net/internal/iana/const.go
generated
vendored
@ -2,7 +2,7 @@
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// GENERATED BY THE COMMAND ABOVE; DO NOT EDIT
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// Package iana provides protocol number resources managed by the Internet Assigned Numbers Authority (IANA).
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package iana
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package iana // import "golang.org/x/net/internal/iana"
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// Differentiated Services Field Codepoints (DSCP), Updated: 2013-06-25
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const (
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6
Godeps/_workspace/src/golang.org/x/net/ipv6/doc.go
generated
vendored
6
Godeps/_workspace/src/golang.org/x/net/ipv6/doc.go
generated
vendored
@ -42,7 +42,7 @@
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// The outgoing packets will be labeled DiffServ assured forwarding
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// class 1 low drop precedence, known as AF11 packets.
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//
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// if err := ipv6.NewConn(c).SetTrafficClass(DiffServAF11); err != nil {
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// if err := ipv6.NewConn(c).SetTrafficClass(0x28); err != nil {
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// // error handling
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// }
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// if _, err := c.Write(data); err != nil {
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@ -124,7 +124,7 @@
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//
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// The application can also send both unicast and multicast packets.
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//
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// p.SetTrafficClass(DiffServCS0)
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// p.SetTrafficClass(0x0)
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// p.SetHopLimit(16)
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// if _, err := p.WriteTo(data[:n], nil, src); err != nil {
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// // error handling
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@ -237,4 +237,4 @@
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// MLDv1 and starts to listen to multicast traffic.
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// In the fallback case, ExcludeSourceSpecificGroup and
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// IncludeSourceSpecificGroup may return an error.
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package ipv6
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package ipv6 // import "golang.org/x/net/ipv6"
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18
Godeps/_workspace/src/golang.org/x/net/proxy/direct.go
generated
vendored
Normal file
18
Godeps/_workspace/src/golang.org/x/net/proxy/direct.go
generated
vendored
Normal file
@ -0,0 +1,18 @@
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package proxy
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import (
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"net"
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)
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type direct struct{}
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// Direct is a direct proxy: one that makes network connections directly.
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var Direct = direct{}
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func (direct) Dial(network, addr string) (net.Conn, error) {
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return net.Dial(network, addr)
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}
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140
Godeps/_workspace/src/golang.org/x/net/proxy/per_host.go
generated
vendored
Normal file
140
Godeps/_workspace/src/golang.org/x/net/proxy/per_host.go
generated
vendored
Normal file
@ -0,0 +1,140 @@
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package proxy
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import (
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"net"
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"strings"
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)
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// A PerHost directs connections to a default Dialer unless the hostname
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// requested matches one of a number of exceptions.
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type PerHost struct {
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def, bypass Dialer
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bypassNetworks []*net.IPNet
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bypassIPs []net.IP
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bypassZones []string
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bypassHosts []string
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}
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// NewPerHost returns a PerHost Dialer that directs connections to either
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// defaultDialer or bypass, depending on whether the connection matches one of
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// the configured rules.
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func NewPerHost(defaultDialer, bypass Dialer) *PerHost {
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return &PerHost{
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def: defaultDialer,
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bypass: bypass,
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}
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}
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// Dial connects to the address addr on the given network through either
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// defaultDialer or bypass.
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func (p *PerHost) Dial(network, addr string) (c net.Conn, err error) {
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host, _, err := net.SplitHostPort(addr)
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if err != nil {
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return nil, err
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}
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return p.dialerForRequest(host).Dial(network, addr)
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}
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func (p *PerHost) dialerForRequest(host string) Dialer {
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if ip := net.ParseIP(host); ip != nil {
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for _, net := range p.bypassNetworks {
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if net.Contains(ip) {
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return p.bypass
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}
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}
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for _, bypassIP := range p.bypassIPs {
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if bypassIP.Equal(ip) {
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return p.bypass
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}
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}
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return p.def
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}
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for _, zone := range p.bypassZones {
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if strings.HasSuffix(host, zone) {
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return p.bypass
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}
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if host == zone[1:] {
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// For a zone "example.com", we match "example.com"
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// too.
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return p.bypass
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}
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}
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for _, bypassHost := range p.bypassHosts {
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if bypassHost == host {
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return p.bypass
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}
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}
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return p.def
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}
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// AddFromString parses a string that contains comma-separated values
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// specifying hosts that should use the bypass proxy. Each value is either an
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// IP address, a CIDR range, a zone (*.example.com) or a hostname
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// (localhost). A best effort is made to parse the string and errors are
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// ignored.
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func (p *PerHost) AddFromString(s string) {
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hosts := strings.Split(s, ",")
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for _, host := range hosts {
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host = strings.TrimSpace(host)
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if len(host) == 0 {
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continue
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}
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if strings.Contains(host, "/") {
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// We assume that it's a CIDR address like 127.0.0.0/8
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if _, net, err := net.ParseCIDR(host); err == nil {
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p.AddNetwork(net)
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}
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continue
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}
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if ip := net.ParseIP(host); ip != nil {
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p.AddIP(ip)
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continue
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}
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if strings.HasPrefix(host, "*.") {
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p.AddZone(host[1:])
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continue
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}
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p.AddHost(host)
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}
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}
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// AddIP specifies an IP address that will use the bypass proxy. Note that
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// this will only take effect if a literal IP address is dialed. A connection
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// to a named host will never match an IP.
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func (p *PerHost) AddIP(ip net.IP) {
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p.bypassIPs = append(p.bypassIPs, ip)
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}
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// AddNetwork specifies an IP range that will use the bypass proxy. Note that
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// this will only take effect if a literal IP address is dialed. A connection
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// to a named host will never match.
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func (p *PerHost) AddNetwork(net *net.IPNet) {
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p.bypassNetworks = append(p.bypassNetworks, net)
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}
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// AddZone specifies a DNS suffix that will use the bypass proxy. A zone of
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// "example.com" matches "example.com" and all of its subdomains.
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func (p *PerHost) AddZone(zone string) {
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if strings.HasSuffix(zone, ".") {
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zone = zone[:len(zone)-1]
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}
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if !strings.HasPrefix(zone, ".") {
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zone = "." + zone
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}
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p.bypassZones = append(p.bypassZones, zone)
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}
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// AddHost specifies a hostname that will use the bypass proxy.
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func (p *PerHost) AddHost(host string) {
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if strings.HasSuffix(host, ".") {
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host = host[:len(host)-1]
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}
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p.bypassHosts = append(p.bypassHosts, host)
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}
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55
Godeps/_workspace/src/golang.org/x/net/proxy/per_host_test.go
generated
vendored
Normal file
55
Godeps/_workspace/src/golang.org/x/net/proxy/per_host_test.go
generated
vendored
Normal file
@ -0,0 +1,55 @@
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// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package proxy
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import (
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"errors"
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"net"
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"reflect"
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"testing"
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)
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type recordingProxy struct {
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addrs []string
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}
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func (r *recordingProxy) Dial(network, addr string) (net.Conn, error) {
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r.addrs = append(r.addrs, addr)
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return nil, errors.New("recordingProxy")
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}
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func TestPerHost(t *testing.T) {
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var def, bypass recordingProxy
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perHost := NewPerHost(&def, &bypass)
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perHost.AddFromString("localhost,*.zone,127.0.0.1,10.0.0.1/8,1000::/16")
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expectedDef := []string{
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"example.com:123",
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"1.2.3.4:123",
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"[1001::]:123",
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}
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expectedBypass := []string{
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"localhost:123",
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"zone:123",
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"foo.zone:123",
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"127.0.0.1:123",
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"10.1.2.3:123",
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"[1000::]:123",
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}
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for _, addr := range expectedDef {
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perHost.Dial("tcp", addr)
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}
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for _, addr := range expectedBypass {
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perHost.Dial("tcp", addr)
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}
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if !reflect.DeepEqual(expectedDef, def.addrs) {
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t.Errorf("Hosts which went to the default proxy didn't match. Got %v, want %v", def.addrs, expectedDef)
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||||
}
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||||
if !reflect.DeepEqual(expectedBypass, bypass.addrs) {
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t.Errorf("Hosts which went to the bypass proxy didn't match. Got %v, want %v", bypass.addrs, expectedBypass)
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||||
}
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}
|
94
Godeps/_workspace/src/golang.org/x/net/proxy/proxy.go
generated
vendored
Normal file
94
Godeps/_workspace/src/golang.org/x/net/proxy/proxy.go
generated
vendored
Normal file
@ -0,0 +1,94 @@
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||||
// Copyright 2011 The Go Authors. All rights reserved.
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||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
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||||
|
||||
// Package proxy provides support for a variety of protocols to proxy network
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||||
// data.
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||||
package proxy // import "golang.org/x/net/proxy"
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||||
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||||
import (
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||||
"errors"
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||||
"net"
|
||||
"net/url"
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||||
"os"
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||||
)
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||||
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// A Dialer is a means to establish a connection.
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||||
type Dialer interface {
|
||||
// Dial connects to the given address via the proxy.
|
||||
Dial(network, addr string) (c net.Conn, err error)
|
||||
}
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||||
|
||||
// Auth contains authentication parameters that specific Dialers may require.
|
||||
type Auth struct {
|
||||
User, Password string
|
||||
}
|
||||
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||||
// FromEnvironment returns the dialer specified by the proxy related variables in
|
||||
// the environment.
|
||||
func FromEnvironment() Dialer {
|
||||
allProxy := os.Getenv("all_proxy")
|
||||
if len(allProxy) == 0 {
|
||||
return Direct
|
||||
}
|
||||
|
||||
proxyURL, err := url.Parse(allProxy)
|
||||
if err != nil {
|
||||
return Direct
|
||||
}
|
||||
proxy, err := FromURL(proxyURL, Direct)
|
||||
if err != nil {
|
||||
return Direct
|
||||
}
|
||||
|
||||
noProxy := os.Getenv("no_proxy")
|
||||
if len(noProxy) == 0 {
|
||||
return proxy
|
||||
}
|
||||
|
||||
perHost := NewPerHost(proxy, Direct)
|
||||
perHost.AddFromString(noProxy)
|
||||
return perHost
|
||||
}
|
||||
|
||||
// proxySchemes is a map from URL schemes to a function that creates a Dialer
|
||||
// from a URL with such a scheme.
|
||||
var proxySchemes map[string]func(*url.URL, Dialer) (Dialer, error)
|
||||
|
||||
// RegisterDialerType takes a URL scheme and a function to generate Dialers from
|
||||
// a URL with that scheme and a forwarding Dialer. Registered schemes are used
|
||||
// by FromURL.
|
||||
func RegisterDialerType(scheme string, f func(*url.URL, Dialer) (Dialer, error)) {
|
||||
if proxySchemes == nil {
|
||||
proxySchemes = make(map[string]func(*url.URL, Dialer) (Dialer, error))
|
||||
}
|
||||
proxySchemes[scheme] = f
|
||||
}
|
||||
|
||||
// FromURL returns a Dialer given a URL specification and an underlying
|
||||
// Dialer for it to make network requests.
|
||||
func FromURL(u *url.URL, forward Dialer) (Dialer, error) {
|
||||
var auth *Auth
|
||||
if u.User != nil {
|
||||
auth = new(Auth)
|
||||
auth.User = u.User.Username()
|
||||
if p, ok := u.User.Password(); ok {
|
||||
auth.Password = p
|
||||
}
|
||||
}
|
||||
|
||||
switch u.Scheme {
|
||||
case "socks5":
|
||||
return SOCKS5("tcp", u.Host, auth, forward)
|
||||
}
|
||||
|
||||
// If the scheme doesn't match any of the built-in schemes, see if it
|
||||
// was registered by another package.
|
||||
if proxySchemes != nil {
|
||||
if f, ok := proxySchemes[u.Scheme]; ok {
|
||||
return f(u, forward)
|
||||
}
|
||||
}
|
||||
|
||||
return nil, errors.New("proxy: unknown scheme: " + u.Scheme)
|
||||
}
|
142
Godeps/_workspace/src/golang.org/x/net/proxy/proxy_test.go
generated
vendored
Normal file
142
Godeps/_workspace/src/golang.org/x/net/proxy/proxy_test.go
generated
vendored
Normal file
@ -0,0 +1,142 @@
|
||||
// Copyright 2011 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 proxy
|
||||
|
||||
import (
|
||||
"io"
|
||||
"net"
|
||||
"net/url"
|
||||
"strconv"
|
||||
"sync"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestFromURL(t *testing.T) {
|
||||
endSystem, err := net.Listen("tcp", "127.0.0.1:0")
|
||||
if err != nil {
|
||||
t.Fatalf("net.Listen failed: %v", err)
|
||||
}
|
||||
defer endSystem.Close()
|
||||
gateway, err := net.Listen("tcp", "127.0.0.1:0")
|
||||
if err != nil {
|
||||
t.Fatalf("net.Listen failed: %v", err)
|
||||
}
|
||||
defer gateway.Close()
|
||||
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(1)
|
||||
go socks5Gateway(t, gateway, endSystem, socks5Domain, &wg)
|
||||
|
||||
url, err := url.Parse("socks5://user:password@" + gateway.Addr().String())
|
||||
if err != nil {
|
||||
t.Fatalf("url.Parse failed: %v", err)
|
||||
}
|
||||
proxy, err := FromURL(url, Direct)
|
||||
if err != nil {
|
||||
t.Fatalf("FromURL failed: %v", err)
|
||||
}
|
||||
_, port, err := net.SplitHostPort(endSystem.Addr().String())
|
||||
if err != nil {
|
||||
t.Fatalf("net.SplitHostPort failed: %v", err)
|
||||
}
|
||||
if c, err := proxy.Dial("tcp", "localhost:"+port); err != nil {
|
||||
t.Fatalf("FromURL.Dial failed: %v", err)
|
||||
} else {
|
||||
c.Close()
|
||||
}
|
||||
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
func TestSOCKS5(t *testing.T) {
|
||||
endSystem, err := net.Listen("tcp", "127.0.0.1:0")
|
||||
if err != nil {
|
||||
t.Fatalf("net.Listen failed: %v", err)
|
||||
}
|
||||
defer endSystem.Close()
|
||||
gateway, err := net.Listen("tcp", "127.0.0.1:0")
|
||||
if err != nil {
|
||||
t.Fatalf("net.Listen failed: %v", err)
|
||||
}
|
||||
defer gateway.Close()
|
||||
|
||||
var wg sync.WaitGroup
|
||||
wg.Add(1)
|
||||
go socks5Gateway(t, gateway, endSystem, socks5IP4, &wg)
|
||||
|
||||
proxy, err := SOCKS5("tcp", gateway.Addr().String(), nil, Direct)
|
||||
if err != nil {
|
||||
t.Fatalf("SOCKS5 failed: %v", err)
|
||||
}
|
||||
if c, err := proxy.Dial("tcp", endSystem.Addr().String()); err != nil {
|
||||
t.Fatalf("SOCKS5.Dial failed: %v", err)
|
||||
} else {
|
||||
c.Close()
|
||||
}
|
||||
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
func socks5Gateway(t *testing.T, gateway, endSystem net.Listener, typ byte, wg *sync.WaitGroup) {
|
||||
defer wg.Done()
|
||||
|
||||
c, err := gateway.Accept()
|
||||
if err != nil {
|
||||
t.Errorf("net.Listener.Accept failed: %v", err)
|
||||
return
|
||||
}
|
||||
defer c.Close()
|
||||
|
||||
b := make([]byte, 32)
|
||||
var n int
|
||||
if typ == socks5Domain {
|
||||
n = 4
|
||||
} else {
|
||||
n = 3
|
||||
}
|
||||
if _, err := io.ReadFull(c, b[:n]); err != nil {
|
||||
t.Errorf("io.ReadFull failed: %v", err)
|
||||
return
|
||||
}
|
||||
if _, err := c.Write([]byte{socks5Version, socks5AuthNone}); err != nil {
|
||||
t.Errorf("net.Conn.Write failed: %v", err)
|
||||
return
|
||||
}
|
||||
if typ == socks5Domain {
|
||||
n = 16
|
||||
} else {
|
||||
n = 10
|
||||
}
|
||||
if _, err := io.ReadFull(c, b[:n]); err != nil {
|
||||
t.Errorf("io.ReadFull failed: %v", err)
|
||||
return
|
||||
}
|
||||
if b[0] != socks5Version || b[1] != socks5Connect || b[2] != 0x00 || b[3] != typ {
|
||||
t.Errorf("got an unexpected packet: %#02x %#02x %#02x %#02x", b[0], b[1], b[2], b[3])
|
||||
return
|
||||
}
|
||||
if typ == socks5Domain {
|
||||
copy(b[:5], []byte{socks5Version, 0x00, 0x00, socks5Domain, 9})
|
||||
b = append(b, []byte("localhost")...)
|
||||
} else {
|
||||
copy(b[:4], []byte{socks5Version, 0x00, 0x00, socks5IP4})
|
||||
}
|
||||
host, port, err := net.SplitHostPort(endSystem.Addr().String())
|
||||
if err != nil {
|
||||
t.Errorf("net.SplitHostPort failed: %v", err)
|
||||
return
|
||||
}
|
||||
b = append(b, []byte(net.ParseIP(host).To4())...)
|
||||
p, err := strconv.Atoi(port)
|
||||
if err != nil {
|
||||
t.Errorf("strconv.Atoi failed: %v", err)
|
||||
return
|
||||
}
|
||||
b = append(b, []byte{byte(p >> 8), byte(p)}...)
|
||||
if _, err := c.Write(b); err != nil {
|
||||
t.Errorf("net.Conn.Write failed: %v", err)
|
||||
return
|
||||
}
|
||||
}
|
210
Godeps/_workspace/src/golang.org/x/net/proxy/socks5.go
generated
vendored
Normal file
210
Godeps/_workspace/src/golang.org/x/net/proxy/socks5.go
generated
vendored
Normal file
@ -0,0 +1,210 @@
|
||||
// Copyright 2011 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 proxy
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"io"
|
||||
"net"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
// SOCKS5 returns a Dialer that makes SOCKSv5 connections to the given address
|
||||
// with an optional username and password. See RFC 1928.
|
||||
func SOCKS5(network, addr string, auth *Auth, forward Dialer) (Dialer, error) {
|
||||
s := &socks5{
|
||||
network: network,
|
||||
addr: addr,
|
||||
forward: forward,
|
||||
}
|
||||
if auth != nil {
|
||||
s.user = auth.User
|
||||
s.password = auth.Password
|
||||
}
|
||||
|
||||
return s, nil
|
||||
}
|
||||
|
||||
type socks5 struct {
|
||||
user, password string
|
||||
network, addr string
|
||||
forward Dialer
|
||||
}
|
||||
|
||||
const socks5Version = 5
|
||||
|
||||
const (
|
||||
socks5AuthNone = 0
|
||||
socks5AuthPassword = 2
|
||||
)
|
||||
|
||||
const socks5Connect = 1
|
||||
|
||||
const (
|
||||
socks5IP4 = 1
|
||||
socks5Domain = 3
|
||||
socks5IP6 = 4
|
||||
)
|
||||
|
||||
var socks5Errors = []string{
|
||||
"",
|
||||
"general failure",
|
||||
"connection forbidden",
|
||||
"network unreachable",
|
||||
"host unreachable",
|
||||
"connection refused",
|
||||
"TTL expired",
|
||||
"command not supported",
|
||||
"address type not supported",
|
||||
}
|
||||
|
||||
// Dial connects to the address addr on the network net via the SOCKS5 proxy.
|
||||
func (s *socks5) Dial(network, addr string) (net.Conn, error) {
|
||||
switch network {
|
||||
case "tcp", "tcp6", "tcp4":
|
||||
default:
|
||||
return nil, errors.New("proxy: no support for SOCKS5 proxy connections of type " + network)
|
||||
}
|
||||
|
||||
conn, err := s.forward.Dial(s.network, s.addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
closeConn := &conn
|
||||
defer func() {
|
||||
if closeConn != nil {
|
||||
(*closeConn).Close()
|
||||
}
|
||||
}()
|
||||
|
||||
host, portStr, err := net.SplitHostPort(addr)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
port, err := strconv.Atoi(portStr)
|
||||
if err != nil {
|
||||
return nil, errors.New("proxy: failed to parse port number: " + portStr)
|
||||
}
|
||||
if port < 1 || port > 0xffff {
|
||||
return nil, errors.New("proxy: port number out of range: " + portStr)
|
||||
}
|
||||
|
||||
// the size here is just an estimate
|
||||
buf := make([]byte, 0, 6+len(host))
|
||||
|
||||
buf = append(buf, socks5Version)
|
||||
if len(s.user) > 0 && len(s.user) < 256 && len(s.password) < 256 {
|
||||
buf = append(buf, 2 /* num auth methods */, socks5AuthNone, socks5AuthPassword)
|
||||
} else {
|
||||
buf = append(buf, 1 /* num auth methods */, socks5AuthNone)
|
||||
}
|
||||
|
||||
if _, err := conn.Write(buf); err != nil {
|
||||
return nil, errors.New("proxy: failed to write greeting to SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
|
||||
return nil, errors.New("proxy: failed to read greeting from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
if buf[0] != 5 {
|
||||
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " has unexpected version " + strconv.Itoa(int(buf[0])))
|
||||
}
|
||||
if buf[1] == 0xff {
|
||||
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " requires authentication")
|
||||
}
|
||||
|
||||
if buf[1] == socks5AuthPassword {
|
||||
buf = buf[:0]
|
||||
buf = append(buf, 1 /* password protocol version */)
|
||||
buf = append(buf, uint8(len(s.user)))
|
||||
buf = append(buf, s.user...)
|
||||
buf = append(buf, uint8(len(s.password)))
|
||||
buf = append(buf, s.password...)
|
||||
|
||||
if _, err := conn.Write(buf); err != nil {
|
||||
return nil, errors.New("proxy: failed to write authentication request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
|
||||
return nil, errors.New("proxy: failed to read authentication reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
if buf[1] != 0 {
|
||||
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " rejected username/password")
|
||||
}
|
||||
}
|
||||
|
||||
buf = buf[:0]
|
||||
buf = append(buf, socks5Version, socks5Connect, 0 /* reserved */)
|
||||
|
||||
if ip := net.ParseIP(host); ip != nil {
|
||||
if ip4 := ip.To4(); ip4 != nil {
|
||||
buf = append(buf, socks5IP4)
|
||||
ip = ip4
|
||||
} else {
|
||||
buf = append(buf, socks5IP6)
|
||||
}
|
||||
buf = append(buf, ip...)
|
||||
} else {
|
||||
if len(host) > 255 {
|
||||
return nil, errors.New("proxy: destination hostname too long: " + host)
|
||||
}
|
||||
buf = append(buf, socks5Domain)
|
||||
buf = append(buf, byte(len(host)))
|
||||
buf = append(buf, host...)
|
||||
}
|
||||
buf = append(buf, byte(port>>8), byte(port))
|
||||
|
||||
if _, err := conn.Write(buf); err != nil {
|
||||
return nil, errors.New("proxy: failed to write connect request to SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
if _, err := io.ReadFull(conn, buf[:4]); err != nil {
|
||||
return nil, errors.New("proxy: failed to read connect reply from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
failure := "unknown error"
|
||||
if int(buf[1]) < len(socks5Errors) {
|
||||
failure = socks5Errors[buf[1]]
|
||||
}
|
||||
|
||||
if len(failure) > 0 {
|
||||
return nil, errors.New("proxy: SOCKS5 proxy at " + s.addr + " failed to connect: " + failure)
|
||||
}
|
||||
|
||||
bytesToDiscard := 0
|
||||
switch buf[3] {
|
||||
case socks5IP4:
|
||||
bytesToDiscard = net.IPv4len
|
||||
case socks5IP6:
|
||||
bytesToDiscard = net.IPv6len
|
||||
case socks5Domain:
|
||||
_, err := io.ReadFull(conn, buf[:1])
|
||||
if err != nil {
|
||||
return nil, errors.New("proxy: failed to read domain length from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
bytesToDiscard = int(buf[0])
|
||||
default:
|
||||
return nil, errors.New("proxy: got unknown address type " + strconv.Itoa(int(buf[3])) + " from SOCKS5 proxy at " + s.addr)
|
||||
}
|
||||
|
||||
if cap(buf) < bytesToDiscard {
|
||||
buf = make([]byte, bytesToDiscard)
|
||||
} else {
|
||||
buf = buf[:bytesToDiscard]
|
||||
}
|
||||
if _, err := io.ReadFull(conn, buf); err != nil {
|
||||
return nil, errors.New("proxy: failed to read address from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
// Also need to discard the port number
|
||||
if _, err := io.ReadFull(conn, buf[:2]); err != nil {
|
||||
return nil, errors.New("proxy: failed to read port from SOCKS5 proxy at " + s.addr + ": " + err.Error())
|
||||
}
|
||||
|
||||
closeConn = nil
|
||||
return conn, nil
|
||||
}
|
Loading…
Reference in New Issue
Block a user