feature: MITM

This commit is contained in:
yaling888 2022-04-10 03:59:27 +08:00 committed by Adlyq
parent d6b80acfbc
commit 2092a481b3
37 changed files with 3431 additions and 133 deletions

22
adapter/inbound/mitm.go Normal file
View File

@ -0,0 +1,22 @@
package inbound
import (
"net"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/context"
"github.com/Dreamacro/clash/transport/socks5"
)
// NewMitm receive mitm request and return MitmContext
func NewMitm(target socks5.Addr, source net.Addr, userAgent string, conn net.Conn) *context.ConnContext {
metadata := parseSocksAddr(target)
metadata.NetWork = C.TCP
metadata.Type = C.MITM
metadata.UserAgent = userAgent
if ip, port, err := parseAddr(source); err == nil {
metadata.SrcIP = ip
metadata.SrcPort = port
}
return context.NewConnContext(conn, metadata)
}

View File

@ -113,6 +113,10 @@ func (h *Http) shakeHand(metadata *C.Metadata, rw io.ReadWriter) error {
tempHeaders["Proxy-Authorization"] = "Basic " + base64.StdEncoding.EncodeToString([]byte(auth))
}
if metadata.Type == C.MITM {
tempHeaders["Origin-Request-Source-Address"] = metadata.SourceAddress()
}
for key, value := range tempHeaders {
HeaderString += key + ": " + value + "\r\n"
}

50
adapter/outbound/mitm.go Normal file
View File

@ -0,0 +1,50 @@
package outbound
import (
"context"
"net"
"time"
"github.com/Dreamacro/clash/component/dialer"
C "github.com/Dreamacro/clash/constant"
)
type Mitm struct {
*Base
serverAddr *net.TCPAddr
httpProxyClient *Http
}
// DialContext implements C.ProxyAdapter
func (m *Mitm) DialContext(ctx context.Context, metadata *C.Metadata, _ ...dialer.Option) (C.Conn, error) {
c, err := net.DialTCP("tcp", nil, m.serverAddr)
if err != nil {
return nil, err
}
_ = c.SetKeepAlive(true)
_ = c.SetKeepAlivePeriod(60 * time.Second)
metadata.Type = C.MITM
hc, err := m.httpProxyClient.StreamConnContext(ctx, c, metadata)
if err != nil {
_ = c.Close()
return nil, err
}
return NewConn(hc, m), nil
}
func NewMitm(serverAddr string) *Mitm {
tcpAddr, _ := net.ResolveTCPAddr("tcp", serverAddr)
http, _ := NewHttp(HttpOption{})
return &Mitm{
Base: &Base{
name: "Mitm",
tp: C.Mitm,
},
serverAddr: tcpAddr,
httpProxyClient: http,
}
}

303
common/cert/cert.go Normal file
View File

@ -0,0 +1,303 @@
package cert
import (
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"math/big"
"net"
"os"
"strings"
"sync/atomic"
"time"
)
var currentSerialNumber = time.Now().Unix()
type Config struct {
ca *x509.Certificate
caPrivateKey *rsa.PrivateKey
roots *x509.CertPool
privateKey *rsa.PrivateKey
validity time.Duration
keyID []byte
organization string
certsStorage CertsStorage
}
type CertsStorage interface {
Get(key string) (*tls.Certificate, bool)
Set(key string, cert *tls.Certificate)
}
func NewAuthority(name, organization string, validity time.Duration) (*x509.Certificate, *rsa.PrivateKey, error) {
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, nil, err
}
pub := privateKey.Public()
pkixPub, err := x509.MarshalPKIXPublicKey(pub)
if err != nil {
return nil, nil, err
}
h := sha1.New()
_, err = h.Write(pkixPub)
if err != nil {
return nil, nil, err
}
keyID := h.Sum(nil)
serial := atomic.AddInt64(&currentSerialNumber, 1)
tmpl := &x509.Certificate{
SerialNumber: big.NewInt(serial),
Subject: pkix.Name{
CommonName: name,
Organization: []string{organization},
},
SubjectKeyId: keyID,
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
NotBefore: time.Now().Add(-validity),
NotAfter: time.Now().Add(validity),
DNSNames: []string{name},
IsCA: true,
}
raw, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, pub, privateKey)
if err != nil {
return nil, nil, err
}
x509c, err := x509.ParseCertificate(raw)
if err != nil {
return nil, nil, err
}
return x509c, privateKey, nil
}
func NewConfig(ca *x509.Certificate, caPrivateKey *rsa.PrivateKey) (*Config, error) {
roots := x509.NewCertPool()
roots.AddCert(ca)
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return nil, err
}
pub := privateKey.Public()
pkixPub, err := x509.MarshalPKIXPublicKey(pub)
if err != nil {
return nil, err
}
h := sha1.New()
_, err = h.Write(pkixPub)
if err != nil {
return nil, err
}
keyID := h.Sum(nil)
return &Config{
ca: ca,
caPrivateKey: caPrivateKey,
privateKey: privateKey,
keyID: keyID,
validity: time.Hour,
organization: "Clash",
certsStorage: NewDomainTrieCertsStorage(),
roots: roots,
}, nil
}
func (c *Config) GetCA() *x509.Certificate {
return c.ca
}
func (c *Config) SetOrganization(organization string) {
c.organization = organization
}
func (c *Config) SetValidity(validity time.Duration) {
c.validity = validity
}
func (c *Config) NewTLSConfigForHost(hostname string) *tls.Config {
tlsConfig := &tls.Config{
GetCertificate: func(clientHello *tls.ClientHelloInfo) (*tls.Certificate, error) {
host := clientHello.ServerName
if host == "" {
host = hostname
}
return c.GetOrCreateCert(host)
},
NextProtos: []string{"http/1.1"},
}
tlsConfig.InsecureSkipVerify = true
return tlsConfig
}
func (c *Config) GetOrCreateCert(hostname string, ips ...net.IP) (*tls.Certificate, error) {
var leaf *x509.Certificate
tlsCertificate, ok := c.certsStorage.Get(hostname)
if ok {
leaf = tlsCertificate.Leaf
if _, err := leaf.Verify(x509.VerifyOptions{
DNSName: hostname,
Roots: c.roots,
}); err == nil {
return tlsCertificate, nil
}
}
var (
key = hostname
topHost = hostname
wildcardHost = "*." + hostname
dnsNames []string
)
if ip := net.ParseIP(hostname); ip != nil {
ips = append(ips, ip)
} else {
parts := strings.Split(hostname, ".")
l := len(parts)
if leaf != nil {
dnsNames = append(dnsNames, leaf.DNSNames...)
}
if l > 2 {
topIndex := l - 2
topHost = strings.Join(parts[topIndex:], ".")
for i := topIndex; i > 0; i-- {
wildcardHost = "*." + strings.Join(parts[i:], ".")
if i == topIndex && (len(dnsNames) == 0 || dnsNames[0] != topHost) {
dnsNames = append(dnsNames, topHost, wildcardHost)
} else if !hasDnsNames(dnsNames, wildcardHost) {
dnsNames = append(dnsNames, wildcardHost)
}
}
} else {
dnsNames = append(dnsNames, topHost, wildcardHost)
}
key = "+." + topHost
}
serial := atomic.AddInt64(&currentSerialNumber, 1)
tmpl := &x509.Certificate{
SerialNumber: big.NewInt(serial),
Subject: pkix.Name{
CommonName: topHost,
Organization: []string{c.organization},
},
SubjectKeyId: c.keyID,
KeyUsage: x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
BasicConstraintsValid: true,
NotBefore: time.Now().Add(-c.validity),
NotAfter: time.Now().Add(c.validity),
DNSNames: dnsNames,
IPAddresses: ips,
}
raw, err := x509.CreateCertificate(rand.Reader, tmpl, c.ca, c.privateKey.Public(), c.caPrivateKey)
if err != nil {
return nil, err
}
x509c, err := x509.ParseCertificate(raw)
if err != nil {
return nil, err
}
tlsCertificate = &tls.Certificate{
Certificate: [][]byte{raw, c.ca.Raw},
PrivateKey: c.privateKey,
Leaf: x509c,
}
c.certsStorage.Set(key, tlsCertificate)
return tlsCertificate, nil
}
// GenerateAndSave generate CA private key and CA certificate and dump them to file
func GenerateAndSave(caPath string, caKeyPath string) error {
privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
if err != nil {
return err
}
tmpl := &x509.Certificate{
SerialNumber: big.NewInt(time.Now().Unix()),
Subject: pkix.Name{
Country: []string{"US"},
CommonName: "Clash Root CA",
Organization: []string{"Clash Trust Services"},
},
KeyUsage: x509.KeyUsageCertSign | x509.KeyUsageKeyEncipherment | x509.KeyUsageDigitalSignature,
ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageServerAuth},
NotBefore: time.Now().Add(-(time.Hour * 24 * 60)),
NotAfter: time.Now().Add(time.Hour * 24 * 365 * 25),
BasicConstraintsValid: true,
IsCA: true,
}
caRaw, err := x509.CreateCertificate(rand.Reader, tmpl, tmpl, privateKey.Public(), privateKey)
if err != nil {
return err
}
caOut, err := os.OpenFile(caPath, os.O_CREATE|os.O_WRONLY, 0o600)
if err != nil {
return err
}
defer func(caOut *os.File) {
_ = caOut.Close()
}(caOut)
if err = pem.Encode(caOut, &pem.Block{Type: "CERTIFICATE", Bytes: caRaw}); err != nil {
return err
}
caKeyOut, err := os.OpenFile(caKeyPath, os.O_CREATE|os.O_WRONLY, 0o600)
if err != nil {
return err
}
defer func(caKeyOut *os.File) {
_ = caKeyOut.Close()
}(caKeyOut)
if err = pem.Encode(caKeyOut, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privateKey)}); err != nil {
return err
}
return nil
}
func hasDnsNames(dnsNames []string, hostname string) bool {
for _, name := range dnsNames {
if name == hostname {
return true
}
}
return false
}

32
common/cert/storage.go Normal file
View File

@ -0,0 +1,32 @@
package cert
import (
"crypto/tls"
"github.com/Dreamacro/clash/component/trie"
)
// DomainTrieCertsStorage cache wildcard certificates
type DomainTrieCertsStorage struct {
certsCache *trie.DomainTrie[*tls.Certificate]
}
// Get gets the certificate from the storage
func (c *DomainTrieCertsStorage) Get(key string) (*tls.Certificate, bool) {
ca := c.certsCache.Search(key)
if ca == nil {
return nil, false
}
return ca.Data(), true
}
// Set saves the certificate to the storage
func (c *DomainTrieCertsStorage) Set(key string, cert *tls.Certificate) {
_ = c.certsCache.Insert(key, cert)
}
func NewDomainTrieCertsStorage() *DomainTrieCertsStorage {
return &DomainTrieCertsStorage{
certsCache: trie.New[*tls.Certificate](),
}
}

View File

@ -32,7 +32,7 @@ func (g GeoIPCache) Set(key string, value *router.GeoIP) {
}
func (g GeoIPCache) Unmarshal(filename, code string) (*router.GeoIP, error) {
asset := C.Path.GetAssetLocation(filename)
asset := C.Path.Resolve(filename)
idx := strings.ToLower(asset + ":" + code)
if g.Has(idx) {
return g.Get(idx), nil
@ -97,7 +97,7 @@ func (g GeoSiteCache) Set(key string, value *router.GeoSite) {
}
func (g GeoSiteCache) Unmarshal(filename, code string) (*router.GeoSite, error) {
asset := C.Path.GetAssetLocation(filename)
asset := C.Path.Resolve(filename)
idx := strings.ToLower(asset + ":" + code)
if g.Has(idx) {
return g.Get(idx), nil

View File

@ -26,7 +26,7 @@ func ReadFile(path string) ([]byte, error) {
}
func ReadAsset(file string) ([]byte, error) {
return ReadFile(C.Path.GetAssetLocation(file))
return ReadFile(C.Path.Resolve(file))
}
func loadIP(geoipBytes []byte, country string) ([]*router.CIDR, error) {

View File

@ -35,6 +35,7 @@ import (
L "github.com/Dreamacro/clash/listener"
LC "github.com/Dreamacro/clash/listener/config"
"github.com/Dreamacro/clash/log"
rewrites "github.com/Dreamacro/clash/rewrite"
R "github.com/Dreamacro/clash/rules"
RP "github.com/Dreamacro/clash/rules/provider"
T "github.com/Dreamacro/clash/tunnel"
@ -79,6 +80,7 @@ type Inbound struct {
BindAddress string `json:"bind-address"`
InboundTfo bool `json:"inbound-tfo"`
InboundMPTCP bool `json:"inbound-mptcp"`
MitmPort int `json:"mitm-port"`
}
// Controller config
@ -152,6 +154,12 @@ type Sniffer struct {
ParsePureIp bool
}
// Mitm config
type Mitm struct {
Port int `yaml:"port" json:"port"`
Rules C.RewriteRule `yaml:"rules" json:"rules"`
}
// Experimental config
type Experimental struct {
Fingerprints []string `yaml:"fingerprints"`
@ -161,6 +169,7 @@ type Experimental struct {
type Config struct {
General *General
IPTables *IPTables
Mitm *Mitm
NTP *NTP
DNS *DNS
Experimental *Experimental
@ -253,12 +262,18 @@ type RawTuicServer struct {
CWND int `yaml:"cwnd" json:"cwnd,omitempty"`
}
type RawMitm struct {
Port int `yaml:"port" json:"port"`
Rules []string `yaml:"rules" json:"rules"`
}
type RawConfig struct {
Port int `yaml:"port"`
SocksPort int `yaml:"socks-port"`
RedirPort int `yaml:"redir-port"`
TProxyPort int `yaml:"tproxy-port"`
MixedPort int `yaml:"mixed-port"`
MitmPort int `yaml:"mitm-port"`
ShadowSocksConfig string `yaml:"ss-config"`
VmessConfig string `yaml:"vmess-config"`
InboundTfo bool `yaml:"inbound-tfo"`
@ -294,6 +309,7 @@ type RawConfig struct {
TuicServer RawTuicServer `yaml:"tuic-server"`
EBpf EBpf `yaml:"ebpf"`
IPTables IPTables `yaml:"iptables"`
MITM RawMitm `yaml:"mitm"`
Experimental Experimental `yaml:"experimental"`
Profile Profile `yaml:"profile"`
GeoXUrl GeoXUrl `yaml:"geox-url"`
@ -438,6 +454,10 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
ParsePureIp: true,
OverrideDest: true,
},
MITM: RawMitm{
Port: 0,
Rules: []string{},
},
Profile: Profile{
StoreSelected: true,
},
@ -532,6 +552,12 @@ func ParseRawConfig(rawCfg *RawConfig) (*Config, error) {
return nil, err
}
mitm, err := parseMitm(rawCfg.MITM)
if err != nil {
return nil, err
}
config.Mitm = mitm
config.Users = parseAuthentication(rawCfg.Authentication)
config.Tunnels = rawCfg.Tunnels
@ -582,6 +608,7 @@ func parseGeneral(cfg *RawConfig) (*General, error) {
RedirPort: cfg.RedirPort,
TProxyPort: cfg.TProxyPort,
MixedPort: cfg.MixedPort,
MitmPort: cfg.MitmPort,
ShadowSocksConfig: cfg.ShadowSocksConfig,
VmessConfig: cfg.VmessConfig,
AllowLan: cfg.AllowLan,
@ -629,6 +656,11 @@ func parseProxies(cfg *RawConfig) (proxies map[string]C.Proxy, providersMap map[
proxies["PASS"] = adapter.NewProxy(outbound.NewPass())
proxyList = append(proxyList, "DIRECT", "REJECT")
if cfg.MITM.Port != 0 {
proxies["MITM"] = adapter.NewProxy(outbound.NewMitm(fmt.Sprintf("127.0.0.1:%d", cfg.MITM.Port)))
proxyList = append(proxyList, "MITM")
}
// parse proxy
for idx, mapping := range proxiesConfig {
proxy, err := adapter.ParseProxy(mapping)
@ -909,6 +941,14 @@ func parseHosts(cfg *RawConfig) (*trie.DomainTrie[resolver.HostValue], error) {
_ = tree.Insert(domain, value)
}
}
if cfg.MITM.Port != 0 {
value, _ := resolver.NewHostValue("8.8.9.9")
if err := tree.Insert("mitm.clash", value); err != nil {
log.Errorln("insert mitm.clash to host error: %s", err.Error())
}
}
tree.Optimize()
return tree, nil
@ -1457,3 +1497,28 @@ func parseSniffer(snifferRaw RawSniffer) (*Sniffer, error) {
return sniffer, nil
}
func parseMitm(rawMitm RawMitm) (*Mitm, error) {
var (
req []C.Rewrite
res []C.Rewrite
)
for _, line := range rawMitm.Rules {
rule, err := rewrites.ParseRewrite(line)
if err != nil {
return nil, fmt.Errorf("parse rewrite rule failure: %w", err)
}
if rule.RuleType() == C.MitmResponseHeader || rule.RuleType() == C.MitmResponseBody {
res = append(res, rule)
} else {
req = append(req, rule)
}
}
return &Mitm{
Port: rawMitm.Port,
Rules: rewrites.NewRewriteRules(req, res),
}, nil
}

View File

@ -19,6 +19,7 @@ const (
Direct AdapterType = iota
Reject
Compatible
Mitm
Pass
Relay
@ -182,6 +183,8 @@ func (at AdapterType) String() string {
return "Compatible"
case Pass:
return "Pass"
case Mitm:
return "Mitm"
case Shadowsocks:
return "Shadowsocks"
case ShadowsocksR:

View File

@ -31,6 +31,7 @@ const (
TUN
TUIC
INNER
MITM
)
type NetWork int
@ -80,6 +81,8 @@ func (t Type) String() string {
return "Tuic"
case INNER:
return "Inner"
case MITM:
return "Mitm"
default:
return "Unknown"
}
@ -144,6 +147,8 @@ type Metadata struct {
RemoteDst string `json:"remoteDestination"`
// Only domain rule
SniffHost string `json:"sniffHost"`
// Only Mitm rule
UserAgent string `json:"userAgent"`
}
func (m *Metadata) RemoteAddress() string {

View File

@ -148,8 +148,12 @@ func (p *path) GeoSite() string {
return P.Join(p.homeDir, "GeoSite.dat")
}
func (p *path) GetAssetLocation(file string) string {
return P.Join(p.homeDir, file)
func (p *path) RootCA() string {
return p.Resolve("mitm_ca.crt")
}
func (p *path) CAKey() string {
return p.Resolve("mitm_ca.key")
}
func (p *path) GetExecutableFullPath() string {

82
constant/rewrite.go Normal file
View File

@ -0,0 +1,82 @@
package constant
import (
"regexp"
)
var RewriteTypeMapping = map[string]RewriteType{
MitmReject.String(): MitmReject,
MitmReject200.String(): MitmReject200,
MitmRejectImg.String(): MitmRejectImg,
MitmRejectDict.String(): MitmRejectDict,
MitmRejectArray.String(): MitmRejectArray,
Mitm302.String(): Mitm302,
Mitm307.String(): Mitm307,
MitmRequestHeader.String(): MitmRequestHeader,
MitmRequestBody.String(): MitmRequestBody,
MitmResponseHeader.String(): MitmResponseHeader,
MitmResponseBody.String(): MitmResponseBody,
}
const (
MitmReject RewriteType = iota
MitmReject200
MitmRejectImg
MitmRejectDict
MitmRejectArray
Mitm302
Mitm307
MitmRequestHeader
MitmRequestBody
MitmResponseHeader
MitmResponseBody
)
type RewriteType int
func (rt RewriteType) String() string {
switch rt {
case MitmReject:
return "reject" // 404
case MitmReject200:
return "reject-200"
case MitmRejectImg:
return "reject-img"
case MitmRejectDict:
return "reject-dict"
case MitmRejectArray:
return "reject-array"
case Mitm302:
return "302"
case Mitm307:
return "307"
case MitmRequestHeader:
return "request-header"
case MitmRequestBody:
return "request-body"
case MitmResponseHeader:
return "response-header"
case MitmResponseBody:
return "response-body"
default:
return "Unknown"
}
}
type Rewrite interface {
ID() string
URLRegx() *regexp.Regexp
RuleType() RewriteType
RuleRegx() *regexp.Regexp
RulePayload() string
ReplaceURLPayload([]string) string
ReplaceSubPayload(string) string
}
type RewriteRule interface {
SearchInRequest(func(Rewrite) bool) bool
SearchInResponse(func(Rewrite) bool) bool
}

View File

@ -23,6 +23,7 @@ const (
Network
Uid
SubRules
UserAgent
MATCH
AND
OR
@ -67,6 +68,8 @@ func (rt RuleType) String() string {
return "Process"
case ProcessPath:
return "ProcessPath"
case UserAgent:
return "UserAgent"
case MATCH:
return "Match"
case RuleSet:

4
go.mod
View File

@ -12,6 +12,7 @@ require (
github.com/go-chi/chi/v5 v5.0.10
github.com/go-chi/cors v1.2.1
github.com/go-chi/render v1.0.3
github.com/gofrs/uuid v4.4.0+incompatible
github.com/gofrs/uuid/v5 v5.0.0
github.com/gorilla/websocket v1.5.0
github.com/insomniacslk/dhcp v0.0.0-20230731140434-0f9eb93a696c
@ -44,12 +45,14 @@ require (
github.com/stretchr/testify v1.8.4
github.com/zhangyunhao116/fastrand v0.3.0
go.etcd.io/bbolt v1.3.7
go.uber.org/atomic v1.9.0
go.uber.org/automaxprocs v1.5.3
golang.org/x/crypto v0.12.0
golang.org/x/exp v0.0.0-20230811145659-89c5cff77bcb
golang.org/x/net v0.14.0
golang.org/x/sync v0.3.0
golang.org/x/sys v0.11.0
golang.org/x/text v0.12.0
google.golang.org/protobuf v1.31.0
gopkg.in/yaml.v3 v3.0.1
lukechampine.com/blake3 v1.2.1
@ -100,7 +103,6 @@ require (
github.com/yusufpapurcu/wmi v1.2.3 // indirect
gitlab.com/yawning/bsaes.git v0.0.0-20190805113838-0a714cd429ec // indirect
golang.org/x/mod v0.11.0 // indirect
golang.org/x/text v0.12.0 // indirect
golang.org/x/time v0.3.0 // indirect
golang.org/x/tools v0.9.1 // indirect
)

4
go.sum
View File

@ -50,6 +50,8 @@ github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1YrTJupqA=
github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
github.com/gofrs/uuid/v5 v5.0.0 h1:p544++a97kEL+svbcFbCQVM9KFu0Yo25UoISXGNNH9M=
github.com/gofrs/uuid/v5 v5.0.0/go.mod h1:CDOjlDMVAtN56jqyRUZh58JT31Tiw7/oQyEXZV+9bD8=
github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
@ -206,6 +208,8 @@ gitlab.com/yawning/bsaes.git v0.0.0-20190805113838-0a714cd429ec h1:FpfFs4EhNehiV
gitlab.com/yawning/bsaes.git v0.0.0-20190805113838-0a714cd429ec/go.mod h1:BZ1RAoRPbCxum9Grlv5aeksu2H8BiKehBYooU2LFiOQ=
go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
go.uber.org/automaxprocs v1.5.3 h1:kWazyxZUrS3Gs4qUpbwo5kEIMGe/DAvi5Z4tl2NW4j8=
go.uber.org/automaxprocs v1.5.3/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnwa1WM0=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=

View File

@ -91,10 +91,11 @@ func ApplyConfig(cfg *config.Config, force bool) {
}
updateUsers(cfg.Users)
updateProxies(cfg.Proxies, cfg.Providers)
updateProxies(cfg.Mitm, cfg.Proxies, cfg.Providers)
updateRules(cfg.Rules, cfg.SubRules, cfg.RuleProviders)
updateSniffer(cfg.Sniffer)
updateHosts(cfg.Hosts)
updateMitm(cfg.Mitm)
updateGeneral(cfg.General)
updateNTP(cfg.NTP)
updateDNS(cfg.DNS, cfg.RuleProviders, cfg.General.IPv6)
@ -134,6 +135,7 @@ func GetGeneral() *config.General {
RedirPort: ports.RedirPort,
TProxyPort: ports.TProxyPort,
MixedPort: ports.MixedPort,
MitmPort: ports.MitmPort,
Tun: listener.GetTunConf(),
TuicServer: listener.GetTuicConf(),
ShadowSocksConfig: ports.ShadowSocksConfig,
@ -262,7 +264,7 @@ func updateHosts(tree *trie.DomainTrie[resolver.HostValue]) {
resolver.DefaultHosts = resolver.NewHosts(tree)
}
func updateProxies(proxies map[string]C.Proxy, providers map[string]provider.ProxyProvider) {
func updateProxies(mitm *config.Mitm, proxies map[string]C.Proxy, providers map[string]provider.ProxyProvider) {
tunnel.UpdateProxies(proxies, providers)
}
@ -490,6 +492,11 @@ func updateIPTables(cfg *config.Config) {
log.Infoln("[IPTABLES] Setting iptables completed")
}
func updateMitm(mitm *config.Mitm) {
listener.ReCreateMitm(mitm.Port, tunnel.TCPIn())
tunnel.UpdateRewrites(mitm.Rules)
}
func Shutdown() {
listener.Cleanup()
tproxy.CleanupTProxyIPTables()

View File

@ -40,6 +40,7 @@ type configSchema struct {
RedirPort *int `json:"redir-port"`
TProxyPort *int `json:"tproxy-port"`
MixedPort *int `json:"mixed-port"`
MitmPort *int `json:"mitm-port"`
Tun *tunSchema `json:"tun"`
TuicServer *tuicServerSchema `json:"tuic-server"`
ShadowSocksConfig *string `json:"ss-config"`
@ -262,6 +263,7 @@ func patchConfigs(w http.ResponseWriter, r *http.Request) {
P.ReCreateShadowSocks(pointerOrDefaultString(general.ShadowSocksConfig, ports.ShadowSocksConfig), tcpIn, udpIn)
P.ReCreateVmess(pointerOrDefaultString(general.VmessConfig, ports.VmessConfig), tcpIn, udpIn)
P.ReCreateTuic(pointerOrDefaultTuicServer(general.TuicServer, P.LastTuicConf), tcpIn, udpIn)
P.ReCreateMitm(pointerOrDefault(general.MitmPort, ports.MitmPort), tcpIn)
if general.Mode != nil {
tunnel.SetMode(*general.Mode)

View File

@ -36,7 +36,7 @@ func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.LruCache[strin
var resp *http.Response
if !trusted {
resp = authenticate(request, cache)
resp = Authenticate(request, cache)
trusted = resp == nil
}
@ -66,19 +66,19 @@ func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.LruCache[strin
return // hijack connection
}
removeHopByHopHeaders(request.Header)
removeExtraHTTPHostPort(request)
RemoveHopByHopHeaders(request.Header)
RemoveExtraHTTPHostPort(request)
if request.URL.Scheme == "" || request.URL.Host == "" {
resp = responseWith(request, http.StatusBadRequest)
resp = ResponseWith(request, http.StatusBadRequest)
} else {
resp, err = client.Do(request)
if err != nil {
resp = responseWith(request, http.StatusBadGateway)
resp = ResponseWith(request, http.StatusBadGateway)
}
}
removeHopByHopHeaders(resp.Header)
RemoveHopByHopHeaders(resp.Header)
}
if keepAlive {
@ -98,12 +98,12 @@ func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.LruCache[strin
_ = conn.Close()
}
func authenticate(request *http.Request, cache *cache.LruCache[string, bool]) *http.Response {
func Authenticate(request *http.Request, cache *cache.LruCache[string, bool]) *http.Response {
authenticator := authStore.Authenticator()
if authenticator != nil {
credential := parseBasicProxyAuthorization(request)
if credential == "" {
resp := responseWith(request, http.StatusProxyAuthRequired)
resp := ResponseWith(request, http.StatusProxyAuthRequired)
resp.Header.Set("Proxy-Authenticate", "Basic")
return resp
}
@ -117,14 +117,14 @@ func authenticate(request *http.Request, cache *cache.LruCache[string, bool]) *h
if !authed {
log.Infoln("Auth failed from %s", request.RemoteAddr)
return responseWith(request, http.StatusForbidden)
return ResponseWith(request, http.StatusForbidden)
}
}
return nil
}
func responseWith(request *http.Request, statusCode int) *http.Response {
func ResponseWith(request *http.Request, statusCode int) *http.Response {
return &http.Response{
StatusCode: statusCode,
Status: http.StatusText(statusCode),

View File

@ -6,6 +6,7 @@ import (
"net"
"net/http"
"strings"
"time"
"github.com/Dreamacro/clash/adapter/inbound"
N "github.com/Dreamacro/clash/common/net"
@ -29,7 +30,7 @@ func handleUpgrade(conn net.Conn, request *http.Request, in chan<- C.ConnContext
defer conn.Close()
removeProxyHeaders(request.Header)
removeExtraHTTPHostPort(request)
RemoveExtraHTTPHostPort(request)
address := request.Host
if _, _, err := net.SplitHostPort(address); err != nil {
@ -87,3 +88,65 @@ func handleUpgrade(conn net.Conn, request *http.Request, in chan<- C.ConnContext
N.Relay(bufferedLeft, conn)
}
}
func HandleUpgradeY(localConn net.Conn, serverConn *N.BufferedConn, request *http.Request, in chan<- C.ConnContext) (resp *http.Response) {
removeProxyHeaders(request.Header)
RemoveExtraHTTPHostPort(request)
if serverConn == nil {
address := request.Host
if _, _, err := net.SplitHostPort(address); err != nil {
port := "80"
if request.TLS != nil {
port = "443"
}
address = net.JoinHostPort(address, port)
}
dstAddr := socks5.ParseAddr(address)
if dstAddr == nil {
return
}
left, right := net.Pipe()
in <- inbound.NewHTTP(dstAddr, localConn.RemoteAddr(), right)
serverConn = N.NewBufferedConn(left)
defer func() {
_ = serverConn.Close()
}()
}
err := request.Write(serverConn)
if err != nil {
_ = localConn.Close()
return
}
resp, err = http.ReadResponse(serverConn.Reader(), request)
if err != nil {
_ = localConn.Close()
return
}
if resp.StatusCode == http.StatusSwitchingProtocols {
removeProxyHeaders(resp.Header)
err = localConn.SetReadDeadline(time.Time{}) // set to not time out
if err != nil {
return
}
err = resp.Write(localConn)
if err != nil {
return
}
N.Relay(serverConn, localConn) // blocking here
_ = localConn.Close()
resp = nil
}
return
}

View File

@ -15,8 +15,8 @@ func removeProxyHeaders(header http.Header) {
header.Del("Proxy-Authorization")
}
// removeHopByHopHeaders remove hop-by-hop header
func removeHopByHopHeaders(header http.Header) {
// RemoveHopByHopHeaders remove hop-by-hop header
func RemoveHopByHopHeaders(header http.Header) {
// Strip hop-by-hop header based on RFC:
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.5.1
// https://www.mnot.net/blog/2011/07/11/what_proxies_must_do
@ -38,9 +38,9 @@ func removeHopByHopHeaders(header http.Header) {
}
}
// removeExtraHTTPHostPort remove extra host port (example.com:80 --> example.com)
// RemoveExtraHTTPHostPort remove extra host port (example.com:80 --> example.com)
// It resolves the behavior of some HTTP servers that do not handle host:80 (e.g. baidu.com)
func removeExtraHTTPHostPort(req *http.Request) {
func RemoveExtraHTTPHostPort(req *http.Request) {
host := req.Host
if host == "" {
host = req.URL.Host

View File

@ -1,19 +1,26 @@
package listener
import (
"crypto/rsa"
"crypto/tls"
"crypto/x509"
"fmt"
"golang.org/x/exp/slices"
"net"
"os"
"sort"
"strconv"
"strings"
"sync"
"time"
"github.com/Dreamacro/clash/common/cert"
"github.com/Dreamacro/clash/component/ebpf"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/listener/autoredir"
LC "github.com/Dreamacro/clash/listener/config"
"github.com/Dreamacro/clash/listener/http"
"github.com/Dreamacro/clash/listener/mitm"
"github.com/Dreamacro/clash/listener/mixed"
"github.com/Dreamacro/clash/listener/redir"
embedSS "github.com/Dreamacro/clash/listener/shadowsocks"
@ -23,9 +30,10 @@ import (
"github.com/Dreamacro/clash/listener/socks"
"github.com/Dreamacro/clash/listener/tproxy"
"github.com/Dreamacro/clash/listener/tuic"
"github.com/Dreamacro/clash/listener/tunnel"
LT "github.com/Dreamacro/clash/listener/tunnel"
"github.com/Dreamacro/clash/log"
rewrites "github.com/Dreamacro/clash/rewrite"
"github.com/samber/lo"
)
@ -42,8 +50,8 @@ var (
tproxyUDPListener *tproxy.UDPListener
mixedListener *mixed.Listener
mixedUDPLister *socks.UDPListener
tunnelTCPListeners = map[string]*tunnel.Listener{}
tunnelUDPListeners = map[string]*tunnel.PacketConn{}
tunnelTCPListeners = map[string]*LT.Listener{}
tunnelUDPListeners = map[string]*LT.PacketConn{}
inboundListeners = map[string]C.InboundListener{}
tunLister *sing_tun.Listener
shadowSocksListener C.MultiAddrListener
@ -52,6 +60,7 @@ var (
autoRedirListener *autoredir.Listener
autoRedirProgram *ebpf.TcEBpfProgram
tcProgram *ebpf.TcEBpfProgram
mitmListener *mitm.Listener
// lock for recreate function
socksMux sync.Mutex
@ -67,6 +76,7 @@ var (
tuicMux sync.Mutex
autoRedirMux sync.Mutex
tcMux sync.Mutex
mitmMux sync.Mutex
LastTunConf LC.Tun
LastTuicConf LC.TuicServer
@ -80,6 +90,7 @@ type Ports struct {
MixedPort int `json:"mixed-port"`
ShadowSocksConfig string `json:"ss-config"`
VmessConfig string `json:"vmess-config"`
MitmPort int `json:"mitm-port"`
}
func GetTunConf() LC.Tun {
@ -699,7 +710,7 @@ func PatchTunnel(tunnels []LC.Tunnel, tcpIn chan<- C.ConnContext, udpIn chan<- C
for _, elm := range needCreate {
key := fmt.Sprintf("%s/%s/%s", elm.addr, elm.target, elm.proxy)
if elm.network == "tcp" {
l, err := tunnel.New(elm.addr, elm.target, elm.proxy, tcpIn)
l, err := LT.New(elm.addr, elm.target, elm.proxy, tcpIn)
if err != nil {
log.Errorln("Start tunnel %s error: %s", elm.target, err.Error())
continue
@ -707,7 +718,7 @@ func PatchTunnel(tunnels []LC.Tunnel, tcpIn chan<- C.ConnContext, udpIn chan<- C
tunnelTCPListeners[key] = l
log.Infoln("Tunnel(tcp/%s) proxy %s listening at: %s", elm.target, elm.proxy, tunnelTCPListeners[key].Address())
} else {
l, err := tunnel.NewUDP(elm.addr, elm.target, elm.proxy, udpIn)
l, err := LT.NewUDP(elm.addr, elm.target, elm.proxy, udpIn)
if err != nil {
log.Errorln("Start tunnel %s error: %s", elm.target, err.Error())
continue
@ -747,6 +758,79 @@ func PatchInboundListeners(newListenerMap map[string]C.InboundListener, tcpIn ch
}
}
func ReCreateMitm(port int, tcpIn chan<- C.ConnContext) {
mitmMux.Lock()
defer mitmMux.Unlock()
var err error
defer func() {
if err != nil {
log.Errorln("Start MITM server error: %s", err.Error())
}
}()
addr := genAddr(bindAddress, port, allowLan)
if mitmListener != nil {
if mitmListener.RawAddress() == addr {
return
}
_ = mitmListener.Close()
mitmListener = nil
}
if portIsZero(addr) {
return
}
if err = initCert(); err != nil {
return
}
var (
rootCACert tls.Certificate
x509c *x509.Certificate
certOption *cert.Config
)
rootCACert, err = tls.LoadX509KeyPair(C.Path.RootCA(), C.Path.CAKey())
if err != nil {
return
}
privateKey := rootCACert.PrivateKey.(*rsa.PrivateKey)
x509c, err = x509.ParseCertificate(rootCACert.Certificate[0])
if err != nil {
return
}
certOption, err = cert.NewConfig(
x509c,
privateKey,
)
if err != nil {
return
}
certOption.SetValidity(time.Hour * 24 * 365 * 2) // 2 years
certOption.SetOrganization("Clash ManInTheMiddle Proxy Services")
opt := &mitm.Option{
Addr: addr,
ApiHost: "mitm.clash",
CertConfig: certOption,
Handler: &rewrites.RewriteHandler{},
}
mitmListener, err = mitm.New(opt, tcpIn)
if err != nil {
return
}
log.Infoln("Mitm proxy listening at: %s", mitmListener.Address())
}
// GetPorts return the ports of proxy servers
func GetPorts() *Ports {
ports := &Ports{}
@ -789,6 +873,12 @@ func GetPorts() *Ports {
ports.VmessConfig = vmessListener.Config()
}
if mitmListener != nil {
_, portStr, _ := net.SplitHostPort(mitmListener.Address())
port, _ := strconv.Atoi(portStr)
ports.MitmPort = port
}
return ports
}
@ -902,6 +992,19 @@ func closeTunListener() {
}
}
func initCert() error {
if _, err := os.Stat(C.Path.RootCA()); os.IsNotExist(err) {
log.Infoln("Can't find mitm_ca.crt, start generate")
err = cert.GenerateAndSave(C.Path.RootCA(), C.Path.CAKey())
if err != nil {
return err
}
log.Infoln("Generated CA private key and CA certificate finish")
}
return nil
}
func Cleanup() {
closeTunListener()
}

55
listener/mitm/client.go Normal file
View File

@ -0,0 +1,55 @@
package mitm
import (
"context"
"crypto/tls"
"net"
"net/http"
"github.com/Dreamacro/clash/adapter/inbound"
N "github.com/Dreamacro/clash/common/net"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/transport/socks5"
)
func getServerConn(serverConn *N.BufferedConn, request *http.Request, srcAddr net.Addr, in chan<- C.ConnContext) (*N.BufferedConn, error) {
if serverConn != nil {
return serverConn, nil
}
address := request.URL.Host
if _, _, err := net.SplitHostPort(address); err != nil {
port := "80"
if request.TLS != nil {
port = "443"
}
address = net.JoinHostPort(address, port)
}
dstAddr := socks5.ParseAddr(address)
if dstAddr == nil {
return nil, socks5.ErrAddressNotSupported
}
left, right := net.Pipe()
in <- inbound.NewMitm(dstAddr, srcAddr, request.Header.Get("User-Agent"), right)
if request.TLS != nil {
tlsConn := tls.Client(left, &tls.Config{
ServerName: request.TLS.ServerName,
})
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
defer cancel()
if err := tlsConn.HandshakeContext(ctx); err != nil {
return nil, err
}
serverConn = N.NewBufferedConn(tlsConn)
} else {
serverConn = N.NewBufferedConn(left)
}
return serverConn, nil
}

9
listener/mitm/hack.go Normal file
View File

@ -0,0 +1,9 @@
package mitm
import (
_ "net/http"
_ "unsafe"
)
//go:linkname validMethod net/http.validMethod
func validMethod(method string) bool

349
listener/mitm/proxy.go Normal file
View File

@ -0,0 +1,349 @@
package mitm
import (
"bufio"
"bytes"
"context"
"crypto/tls"
"encoding/pem"
"fmt"
"io"
"net"
"net/http"
"net/netip"
"os"
"strings"
"time"
"github.com/Dreamacro/clash/common/cache"
N "github.com/Dreamacro/clash/common/net"
C "github.com/Dreamacro/clash/constant"
H "github.com/Dreamacro/clash/listener/http"
)
func HandleConn(c net.Conn, opt *Option, in chan<- C.ConnContext, cache *cache.LruCache[string, bool]) {
var (
clientIP = netip.MustParseAddrPort(c.RemoteAddr().String()).Addr()
sourceAddr net.Addr
serverConn *N.BufferedConn
connState *tls.ConnectionState
)
defer func() {
if serverConn != nil {
_ = serverConn.Close()
}
}()
conn := N.NewBufferedConn(c)
trusted := cache == nil // disable authenticate if cache is nil
if !trusted {
trusted = clientIP.IsLoopback() || clientIP.IsUnspecified()
}
readLoop:
for {
// use SetReadDeadline instead of Proxy-Connection keep-alive
if err := conn.SetReadDeadline(time.Now().Add(65 * time.Second)); err != nil {
break
}
request, err := H.ReadRequest(conn.Reader())
if err != nil {
break
}
var response *http.Response
session := newSession(conn, request, response)
sourceAddr = parseSourceAddress(session.request, conn.RemoteAddr(), sourceAddr)
session.request.RemoteAddr = sourceAddr.String()
if !trusted {
session.response = H.Authenticate(session.request, cache)
trusted = session.response == nil
}
if trusted {
if session.request.Method == http.MethodConnect {
if session.request.ProtoMajor > 1 {
session.request.ProtoMajor = 1
session.request.ProtoMinor = 1
}
// Manual writing to support CONNECT for http 1.0 (workaround for uplay client)
if _, err = fmt.Fprintf(session.conn, "HTTP/%d.%d %03d %s\r\n\r\n", session.request.ProtoMajor, session.request.ProtoMinor, http.StatusOK, "Connection established"); err != nil {
handleError(opt, session, err)
break // close connection
}
if strings.HasSuffix(session.request.URL.Host, ":80") {
goto readLoop
}
b, err1 := conn.Peek(1)
if err1 != nil {
handleError(opt, session, err1)
break // close connection
}
// TLS handshake.
if b[0] == 0x16 {
tlsConn := tls.Server(conn, opt.CertConfig.NewTLSConfigForHost(session.request.URL.Hostname()))
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
// handshake with the local client
if err = tlsConn.HandshakeContext(ctx); err != nil {
cancel()
session.response = session.NewErrorResponse(fmt.Errorf("handshake failed: %w", err))
_ = writeResponse(session, false)
break // close connection
}
cancel()
cs := tlsConn.ConnectionState()
connState = &cs
conn = N.NewBufferedConn(tlsConn)
}
if strings.HasSuffix(session.request.URL.Host, ":443") {
goto readLoop
}
if conn.SetReadDeadline(time.Now().Add(time.Second)) != nil {
break
}
buf, err2 := conn.Peek(7)
if err2 != nil {
if err2 != bufio.ErrBufferFull && !os.IsTimeout(err2) {
handleError(opt, session, err2)
break // close connection
}
}
// others protocol over tcp
if !isHTTPTraffic(buf) {
if connState != nil {
session.request.TLS = connState
}
serverConn, err = getServerConn(serverConn, session.request, sourceAddr, in)
if err != nil {
break
}
if conn.SetReadDeadline(time.Time{}) != nil {
break
}
N.Relay(serverConn, conn)
return // hijack connection
}
goto readLoop
}
prepareRequest(connState, session.request)
// hijack api
if session.request.URL.Hostname() == opt.ApiHost {
if err = handleApiRequest(session, opt); err != nil {
handleError(opt, session, err)
}
break
}
// forward websocket
if isWebsocketRequest(request) {
serverConn, err = getServerConn(serverConn, session.request, sourceAddr, in)
if err != nil {
break
}
session.request.RequestURI = ""
if session.response = H.HandleUpgradeY(conn, serverConn, request, in); session.response == nil {
return // hijack connection
}
}
if session.response == nil {
H.RemoveHopByHopHeaders(session.request.Header)
H.RemoveExtraHTTPHostPort(session.request)
// hijack custom request and write back custom response if necessary
newReq, newRes := opt.Handler.HandleRequest(session)
if newReq != nil {
session.request = newReq
}
if newRes != nil {
session.response = newRes
if err = writeResponse(session, false); err != nil {
handleError(opt, session, err)
break
}
continue
}
session.request.RequestURI = ""
if session.request.URL.Host == "" {
session.response = session.NewErrorResponse(ErrInvalidURL)
} else {
serverConn, err = getServerConn(serverConn, session.request, sourceAddr, in)
if err != nil {
break
}
// send the request to remote server
err = session.request.Write(serverConn)
if err != nil {
break
}
session.response, err = http.ReadResponse(serverConn.Reader(), request)
if err != nil {
break
}
}
}
}
if err = writeResponseWithHandler(session, opt); err != nil {
handleError(opt, session, err)
break // close connection
}
}
_ = conn.Close()
}
func writeResponseWithHandler(session *Session, opt *Option) error {
res := opt.Handler.HandleResponse(session)
if res != nil {
session.response = res
}
return writeResponse(session, true)
}
func writeResponse(session *Session, keepAlive bool) error {
H.RemoveHopByHopHeaders(session.response.Header)
if keepAlive {
session.response.Header.Set("Connection", "keep-alive")
session.response.Header.Set("Keep-Alive", "timeout=60")
}
return session.writeResponse()
}
func handleApiRequest(session *Session, opt *Option) error {
if opt.CertConfig != nil && strings.ToLower(session.request.URL.Path) == "/cert.crt" {
b := pem.EncodeToMemory(&pem.Block{
Type: "CERTIFICATE",
Bytes: opt.CertConfig.GetCA().Raw,
})
session.response = session.NewResponse(http.StatusOK, bytes.NewReader(b))
session.response.Close = true
session.response.Header.Set("Content-Type", "application/x-x509-ca-cert")
session.response.ContentLength = int64(len(b))
return session.writeResponse()
}
b := `<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<html><head>
<title>Clash MITM Proxy Services - 404 Not Found</title>
</head><body>
<h1>Not Found</h1>
<p>The requested URL %s was not found on this server.</p>
</body></html>
`
if opt.Handler.HandleApiRequest(session) {
return nil
}
b = fmt.Sprintf(b, session.request.URL.Path)
session.response = session.NewResponse(http.StatusNotFound, bytes.NewReader([]byte(b)))
session.response.Close = true
session.response.Header.Set("Content-Type", "text/html;charset=utf-8")
session.response.ContentLength = int64(len(b))
return session.writeResponse()
}
func handleError(opt *Option, session *Session, err error) {
if session.response != nil {
defer func() {
_, _ = io.Copy(io.Discard, session.response.Body)
_ = session.response.Body.Close()
}()
}
opt.Handler.HandleError(session, err)
}
func prepareRequest(connState *tls.ConnectionState, request *http.Request) {
host := request.Header.Get("Host")
if host != "" {
request.Host = host
}
if request.URL.Host == "" {
request.URL.Host = request.Host
}
if request.URL.Scheme == "" {
request.URL.Scheme = "http"
}
if connState != nil {
request.TLS = connState
request.URL.Scheme = "https"
}
if request.Header.Get("Accept-Encoding") != "" {
request.Header.Set("Accept-Encoding", "gzip")
}
}
func parseSourceAddress(req *http.Request, connSource, source net.Addr) net.Addr {
if source != nil {
return source
}
sourceAddress := req.Header.Get("Origin-Request-Source-Address")
if sourceAddress == "" {
return connSource
}
req.Header.Del("Origin-Request-Source-Address")
addrPort, err := netip.ParseAddrPort(sourceAddress)
if err != nil {
return connSource
}
return &net.TCPAddr{
IP: addrPort.Addr().AsSlice(),
Port: int(addrPort.Port()),
}
}
func isWebsocketRequest(req *http.Request) bool {
return strings.EqualFold(req.Header.Get("Connection"), "Upgrade") && strings.EqualFold(req.Header.Get("Upgrade"), "websocket")
}
func isHTTPTraffic(buf []byte) bool {
method, _, _ := strings.Cut(string(buf), " ")
return validMethod(method)
}

88
listener/mitm/server.go Normal file
View File

@ -0,0 +1,88 @@
package mitm
import (
"crypto/tls"
"github.com/Dreamacro/clash/common/cache"
"github.com/Dreamacro/clash/common/cert"
C "github.com/Dreamacro/clash/constant"
"net"
"net/http"
)
type Handler interface {
HandleRequest(*Session) (*http.Request, *http.Response) // Session.Response maybe nil
HandleResponse(*Session) *http.Response
HandleApiRequest(*Session) bool
HandleError(*Session, error) // Session maybe nil
}
type Option struct {
Addr string
ApiHost string
TLSConfig *tls.Config
CertConfig *cert.Config
Handler Handler
}
type Listener struct {
*Option
listener net.Listener
addr string
closed bool
}
// RawAddress implements C.Listener
func (l *Listener) RawAddress() string {
return l.addr
}
// Address implements C.Listener
func (l *Listener) Address() string {
return l.listener.Addr().String()
}
// Close implements C.Listener
func (l *Listener) Close() error {
l.closed = true
return l.listener.Close()
}
// New the MITM proxy actually is a type of HTTP proxy
func New(option *Option, in chan<- C.ConnContext) (*Listener, error) {
return NewWithAuthenticate(option, in, true)
}
func NewWithAuthenticate(option *Option, in chan<- C.ConnContext, authenticate bool) (*Listener, error) {
l, err := net.Listen("tcp", option.Addr)
if err != nil {
return nil, err
}
var c *cache.LruCache[string, bool]
if authenticate {
c = cache.New[string, bool](cache.WithAge[string, bool](90))
}
hl := &Listener{
listener: l,
addr: option.Addr,
Option: option,
}
go func() {
for {
conn, err1 := hl.listener.Accept()
if err1 != nil {
if hl.closed {
break
}
continue
}
go HandleConn(conn, option, in, c)
}
}()
return hl, nil
}

59
listener/mitm/session.go Normal file
View File

@ -0,0 +1,59 @@
package mitm
import (
"io"
"net"
"net/http"
)
type Session struct {
conn net.Conn
request *http.Request
response *http.Response
props map[string]any
}
func (s *Session) Request() *http.Request {
return s.request
}
func (s *Session) Response() *http.Response {
return s.response
}
func (s *Session) GetProperties(key string) (any, bool) {
v, ok := s.props[key]
return v, ok
}
func (s *Session) SetProperties(key string, val any) {
s.props[key] = val
}
func (s *Session) NewResponse(code int, body io.Reader) *http.Response {
return NewResponse(code, body, s.request)
}
func (s *Session) NewErrorResponse(err error) *http.Response {
return NewErrorResponse(s.request, err)
}
func (s *Session) writeResponse() error {
if s.response == nil {
return ErrInvalidResponse
}
defer func(resp *http.Response) {
_ = resp.Body.Close()
}(s.response)
return s.response.Write(s.conn)
}
func newSession(conn net.Conn, request *http.Request, response *http.Response) *Session {
return &Session{
conn: conn,
request: request,
response: response,
props: map[string]any{},
}
}

95
listener/mitm/utils.go Normal file
View File

@ -0,0 +1,95 @@
package mitm
import (
"bytes"
"compress/gzip"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"time"
"golang.org/x/text/encoding/charmap"
"golang.org/x/text/transform"
)
var (
ErrInvalidResponse = errors.New("invalid response")
ErrInvalidURL = errors.New("invalid URL")
)
func NewResponse(code int, body io.Reader, req *http.Request) *http.Response {
if body == nil {
body = &bytes.Buffer{}
}
rc, ok := body.(io.ReadCloser)
if !ok {
rc = ioutil.NopCloser(body)
}
res := &http.Response{
StatusCode: code,
Status: fmt.Sprintf("%d %s", code, http.StatusText(code)),
Proto: "HTTP/1.1",
ProtoMajor: 1,
ProtoMinor: 1,
Header: http.Header{},
Body: rc,
Request: req,
}
if req != nil {
res.Close = req.Close
res.Proto = req.Proto
res.ProtoMajor = req.ProtoMajor
res.ProtoMinor = req.ProtoMinor
}
return res
}
func NewErrorResponse(req *http.Request, err error) *http.Response {
res := NewResponse(http.StatusBadGateway, nil, req)
res.Close = true
date := res.Header.Get("Date")
if date == "" {
date = time.Now().Format(http.TimeFormat)
}
w := fmt.Sprintf(`199 "clash" %q %q`, err.Error(), date)
res.Header.Add("Warning", w)
return res
}
func ReadDecompressedBody(res *http.Response) ([]byte, error) {
rBody := res.Body
if res.Header.Get("Content-Encoding") == "gzip" {
gzReader, err := gzip.NewReader(rBody)
if err != nil {
return nil, err
}
rBody = gzReader
defer func(gzReader *gzip.Reader) {
_ = gzReader.Close()
}(gzReader)
}
return ioutil.ReadAll(rBody)
}
func DecodeLatin1(reader io.Reader) (string, error) {
r := transform.NewReader(reader, charmap.ISO8859_1.NewDecoder())
b, err := ioutil.ReadAll(r)
if err != nil {
return "", err
}
return string(b), nil
}
func EncodeLatin1(str string) ([]byte, error) {
return charmap.ISO8859_1.NewEncoder().Bytes([]byte(str))
}

72
rewrite/base.go Normal file
View File

@ -0,0 +1,72 @@
package rewrites
import (
"bytes"
"io"
"io/ioutil"
C "github.com/Dreamacro/clash/constant"
)
var (
EmptyDict = NewResponseBody([]byte("{}"))
EmptyArray = NewResponseBody([]byte("[]"))
OnePixelPNG = NewResponseBody([]byte{0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x08, 0x06, 0x00, 0x00, 0x00, 0x1f, 0x15, 0xc4, 0x89, 0x00, 0x00, 0x00, 0x11, 0x49, 0x44, 0x41, 0x54, 0x78, 0x9c, 0x62, 0x62, 0x60, 0x60, 0x60, 0x00, 0x04, 0x00, 0x00, 0xff, 0xff, 0x00, 0x0f, 0x00, 0x03, 0xfe, 0x8f, 0xeb, 0xcf, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82})
)
type Body interface {
Body() io.ReadCloser
ContentLength() int64
}
type ResponseBody struct {
data []byte
length int64
}
func (r *ResponseBody) Body() io.ReadCloser {
return ioutil.NopCloser(bytes.NewReader(r.data))
}
func (r *ResponseBody) ContentLength() int64 {
return r.length
}
func NewResponseBody(data []byte) *ResponseBody {
return &ResponseBody{
data: data,
length: int64(len(data)),
}
}
type RewriteRules struct {
request []C.Rewrite
response []C.Rewrite
}
func (rr *RewriteRules) SearchInRequest(do func(C.Rewrite) bool) bool {
for _, v := range rr.request {
if do(v) {
return true
}
}
return false
}
func (rr *RewriteRules) SearchInResponse(do func(C.Rewrite) bool) bool {
for _, v := range rr.response {
if do(v) {
return true
}
}
return false
}
func NewRewriteRules(req []C.Rewrite, res []C.Rewrite) *RewriteRules {
return &RewriteRules{
request: req,
response: res,
}
}
var _ C.RewriteRule = (*RewriteRules)(nil)

202
rewrite/handler.go Normal file
View File

@ -0,0 +1,202 @@
package rewrites
import (
"bufio"
"bytes"
"errors"
"io"
"io/ioutil"
"net/http"
"net/textproto"
"strconv"
"strings"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/listener/mitm"
"github.com/Dreamacro/clash/tunnel"
)
var _ mitm.Handler = (*RewriteHandler)(nil)
type RewriteHandler struct{}
func (*RewriteHandler) HandleRequest(session *mitm.Session) (*http.Request, *http.Response) {
var (
request = session.Request()
response *http.Response
)
rule, sub, found := matchRewriteRule(request.URL.String(), true)
if !found {
return nil, nil
}
switch rule.RuleType() {
case C.MitmReject:
response = session.NewResponse(http.StatusNotFound, nil)
response.Header.Set("Content-Type", "text/html; charset=utf-8")
case C.MitmReject200:
response = session.NewResponse(http.StatusOK, nil)
response.Header.Set("Content-Type", "text/html; charset=utf-8")
case C.MitmRejectImg:
response = session.NewResponse(http.StatusOK, OnePixelPNG.Body())
response.Header.Set("Content-Type", "image/png")
response.ContentLength = OnePixelPNG.ContentLength()
case C.MitmRejectDict:
response = session.NewResponse(http.StatusOK, EmptyDict.Body())
response.Header.Set("Content-Type", "application/json; charset=utf-8")
response.ContentLength = EmptyDict.ContentLength()
case C.MitmRejectArray:
response = session.NewResponse(http.StatusOK, EmptyArray.Body())
response.Header.Set("Content-Type", "application/json; charset=utf-8")
response.ContentLength = EmptyArray.ContentLength()
case C.Mitm302:
response = session.NewResponse(http.StatusFound, nil)
response.Header.Set("Location", rule.ReplaceURLPayload(sub))
case C.Mitm307:
response = session.NewResponse(http.StatusTemporaryRedirect, nil)
response.Header.Set("Location", rule.ReplaceURLPayload(sub))
case C.MitmRequestHeader:
if len(request.Header) == 0 {
return nil, nil
}
rawHeader := &bytes.Buffer{}
oldHeader := request.Header
if err := oldHeader.Write(rawHeader); err != nil {
return nil, nil
}
newRawHeader := rule.ReplaceSubPayload(rawHeader.String())
tb := textproto.NewReader(bufio.NewReader(strings.NewReader(newRawHeader)))
newHeader, err := tb.ReadMIMEHeader()
if err != nil && !errors.Is(err, io.EOF) {
return nil, nil
}
request.Header = http.Header(newHeader)
case C.MitmRequestBody:
if !CanRewriteBody(request.ContentLength, request.Header.Get("Content-Type")) {
return nil, nil
}
buf := make([]byte, request.ContentLength)
_, err := io.ReadFull(request.Body, buf)
if err != nil {
return nil, nil
}
newBody := rule.ReplaceSubPayload(string(buf))
request.Body = io.NopCloser(strings.NewReader(newBody))
request.ContentLength = int64(len(newBody))
default:
found = false
}
if found {
if response != nil {
response.Close = true
}
return request, response
}
return nil, nil
}
func (*RewriteHandler) HandleResponse(session *mitm.Session) *http.Response {
var (
request = session.Request()
response = session.Response()
)
rule, _, found := matchRewriteRule(request.URL.String(), false)
found = found && rule.RuleRegx() != nil
if !found {
return nil
}
switch rule.RuleType() {
case C.MitmResponseHeader:
if len(response.Header) == 0 {
return nil
}
rawHeader := &bytes.Buffer{}
oldHeader := response.Header
if err := oldHeader.Write(rawHeader); err != nil {
return nil
}
newRawHeader := rule.ReplaceSubPayload(rawHeader.String())
tb := textproto.NewReader(bufio.NewReader(strings.NewReader(newRawHeader)))
newHeader, err := tb.ReadMIMEHeader()
if err != nil && !errors.Is(err, io.EOF) {
return nil
}
response.Header = http.Header(newHeader)
response.Header.Set("Content-Length", strconv.FormatInt(response.ContentLength, 10))
case C.MitmResponseBody:
if !CanRewriteBody(response.ContentLength, response.Header.Get("Content-Type")) {
return nil
}
b, err := mitm.ReadDecompressedBody(response)
_ = response.Body.Close()
if err != nil {
return nil
}
body, err := mitm.DecodeLatin1(bytes.NewReader(b))
if err != nil {
return nil
}
newBody := rule.ReplaceSubPayload(body)
modifiedBody, err := mitm.EncodeLatin1(newBody)
if err != nil {
return nil
}
response.Body = ioutil.NopCloser(bytes.NewReader(modifiedBody))
response.Header.Del("Content-Encoding")
response.ContentLength = int64(len(modifiedBody))
default:
found = false
}
if found {
return response
}
return nil
}
func (h *RewriteHandler) HandleApiRequest(*mitm.Session) bool {
return false
}
// HandleError session maybe nil
func (h *RewriteHandler) HandleError(*mitm.Session, error) {}
func matchRewriteRule(url string, isRequest bool) (rr C.Rewrite, sub []string, found bool) {
rewrites := tunnel.Rewrites()
if isRequest {
found = rewrites.SearchInRequest(func(r C.Rewrite) bool {
sub = r.URLRegx().FindStringSubmatch(url)
if len(sub) != 0 {
rr = r
return true
}
return false
})
} else {
found = rewrites.SearchInResponse(func(r C.Rewrite) bool {
if r.URLRegx().FindString(url) != "" {
rr = r
return true
}
return false
})
}
return
}

78
rewrite/parser.go Normal file
View File

@ -0,0 +1,78 @@
package rewrites
import (
"regexp"
"strings"
C "github.com/Dreamacro/clash/constant"
)
func ParseRewrite(line string) (C.Rewrite, error) {
url, others, found := strings.Cut(strings.TrimSpace(line), "url")
if !found {
return nil, errInvalid
}
var (
urlRegx *regexp.Regexp
ruleType *C.RewriteType
ruleRegx *regexp.Regexp
rulePayload string
err error
)
urlRegx, err = regexp.Compile(strings.Trim(url, " "))
if err != nil {
return nil, err
}
others = strings.Trim(others, " ")
first := strings.Split(others, " ")[0]
for k, v := range C.RewriteTypeMapping {
if k == others {
ruleType = &v
break
}
if k != first {
continue
}
rs := trimArr(strings.Split(others, k))
l := len(rs)
if l > 2 {
continue
}
if l == 1 {
ruleType = &v
rulePayload = rs[0]
break
} else {
ruleRegx, err = regexp.Compile(rs[0])
if err != nil {
return nil, err
}
ruleType = &v
rulePayload = rs[1]
break
}
}
if ruleType == nil {
return nil, errInvalid
}
return NewRewriteRule(urlRegx, *ruleType, ruleRegx, rulePayload), nil
}
func trimArr(arr []string) (r []string) {
for _, e := range arr {
if s := strings.Trim(e, " "); s != "" {
r = append(r, s)
}
}
return
}

56
rewrite/parser_test.go Normal file
View File

@ -0,0 +1,56 @@
package rewrites
import (
"bytes"
"fmt"
"image"
"image/color"
"image/draw"
"image/png"
"regexp"
"testing"
"github.com/Dreamacro/clash/constant"
"github.com/stretchr/testify/assert"
)
func TestParseRewrite(t *testing.T) {
line0 := `^https?://example\.com/resource1/3/ url reject-dict`
line1 := `^https?://example\.com/(resource2)/ url 307 https://example.com/new-$1`
line2 := `^https?://example\.com/resource4/ url request-header (\r\n)User-Agent:.+(\r\n) request-header $1User-Agent: Fuck-Who$2`
line3 := `should be error`
c0, err0 := ParseRewrite(line0)
c1, err1 := ParseRewrite(line1)
c2, err2 := ParseRewrite(line2)
_, err3 := ParseRewrite(line3)
assert.NotNil(t, err3)
assert.Nil(t, err0)
assert.Equal(t, c0.RuleType(), constant.MitmRejectDict)
assert.Nil(t, err1)
assert.Equal(t, c1.RuleType(), constant.Mitm307)
assert.Equal(t, c1.URLRegx(), regexp.MustCompile(`^https?://example\.com/(resource2)/`))
assert.Equal(t, c1.RulePayload(), "https://example.com/new-$1")
assert.Nil(t, err2)
assert.Equal(t, c2.RuleType(), constant.MitmRequestHeader)
assert.Equal(t, c2.RuleRegx(), regexp.MustCompile(`(\r\n)User-Agent:.+(\r\n)`))
assert.Equal(t, c2.RulePayload(), "$1User-Agent: Fuck-Who$2")
}
func Test1PxPNG(t *testing.T) {
m := image.NewRGBA(image.Rect(0, 0, 1, 1))
draw.Draw(m, m.Bounds(), &image.Uniform{C: color.Transparent}, image.Point{}, draw.Src)
buf := &bytes.Buffer{}
assert.Nil(t, png.Encode(buf, m))
fmt.Printf("len: %d\n", buf.Len())
fmt.Printf("% #x\n", buf.Bytes())
}

89
rewrite/rewrite.go Normal file
View File

@ -0,0 +1,89 @@
package rewrites
import (
"errors"
"regexp"
"strconv"
"strings"
C "github.com/Dreamacro/clash/constant"
"github.com/gofrs/uuid"
)
var errInvalid = errors.New("invalid rewrite rule")
type RewriteRule struct {
id string
urlRegx *regexp.Regexp
ruleType C.RewriteType
ruleRegx *regexp.Regexp
rulePayload string
}
func (r *RewriteRule) ID() string {
return r.id
}
func (r *RewriteRule) URLRegx() *regexp.Regexp {
return r.urlRegx
}
func (r *RewriteRule) RuleType() C.RewriteType {
return r.ruleType
}
func (r *RewriteRule) RuleRegx() *regexp.Regexp {
return r.ruleRegx
}
func (r *RewriteRule) RulePayload() string {
return r.rulePayload
}
func (r *RewriteRule) ReplaceURLPayload(matchSub []string) string {
url := r.rulePayload
l := len(matchSub)
if l < 2 {
return url
}
for i := 1; i < l; i++ {
url = strings.ReplaceAll(url, "$"+strconv.Itoa(i), matchSub[i])
}
return url
}
func (r *RewriteRule) ReplaceSubPayload(oldData string) string {
payload := r.rulePayload
if r.ruleRegx == nil {
return oldData
}
sub := r.ruleRegx.FindStringSubmatch(oldData)
l := len(sub)
if l == 0 {
return oldData
}
for i := 1; i < l; i++ {
payload = strings.ReplaceAll(payload, "$"+strconv.Itoa(i), sub[i])
}
return strings.ReplaceAll(oldData, sub[0], payload)
}
func NewRewriteRule(urlRegx *regexp.Regexp, ruleType C.RewriteType, ruleRegx *regexp.Regexp, rulePayload string) *RewriteRule {
id, _ := uuid.NewV4()
return &RewriteRule{
id: id.String(),
urlRegx: urlRegx,
ruleType: ruleType,
ruleRegx: ruleRegx,
rulePayload: rulePayload,
}
}
var _ C.Rewrite = (*RewriteRule)(nil)

28
rewrite/util.go Normal file
View File

@ -0,0 +1,28 @@
package rewrites
import (
"strings"
)
var allowContentType = []string{
"text/",
"application/xhtml",
"application/xml",
"application/atom+xml",
"application/json",
"application/x-www-form-urlencoded",
}
func CanRewriteBody(contentLength int64, contentType string) bool {
if contentLength <= 0 {
return false
}
for _, v := range allowContentType {
if strings.HasPrefix(contentType, v) {
return true
}
}
return false
}

52
rules/common/user_gent.go Normal file
View File

@ -0,0 +1,52 @@
package common
import (
"strings"
C "github.com/Dreamacro/clash/constant"
)
type UserAgent struct {
*Base
ua string
adapter string
}
func (d *UserAgent) RuleType() C.RuleType {
return C.UserAgent
}
func (d *UserAgent) Match(metadata *C.Metadata) (bool, string) {
if metadata.Type != C.MITM || metadata.UserAgent == "" {
return false, d.adapter
}
return strings.Contains(metadata.UserAgent, d.ua), d.adapter
}
func (d *UserAgent) Adapter() string {
return d.adapter
}
func (d *UserAgent) Payload() string {
return d.ua
}
func (d *UserAgent) ShouldResolveIP() bool {
return false
}
func NewUserAgent(ua string, adapter string) (*UserAgent, error) {
ua = strings.Trim(ua, "*")
if ua == "" {
return nil, errPayload
}
return &UserAgent{
Base: &Base{},
ua: ua,
adapter: adapter,
}, nil
}
var _ C.Rule = (*UserAgent)(nil)

View File

@ -97,10 +97,12 @@ require (
github.com/tklauser/numcpus v0.6.0 // indirect
github.com/u-root/uio v0.0.0-20230220225925-ffce2a382923 // indirect
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
github.com/xtls/go v0.0.0-20210920065950-d4af136d3672 // indirect
github.com/yusufpapurcu/wmi v1.2.3 // indirect
github.com/zhangyunhao116/fastrand v0.3.0 // indirect
gitlab.com/yawning/bsaes.git v0.0.0-20190805113838-0a714cd429ec // indirect
go.etcd.io/bbolt v1.3.7 // indirect
go.uber.org/atomic v1.9.0 // indirect
golang.org/x/crypto v0.12.0 // indirect
golang.org/x/exp v0.0.0-20230811145659-89c5cff77bcb // indirect
golang.org/x/mod v0.11.0 // indirect
@ -109,7 +111,16 @@ require (
golang.org/x/text v0.12.0 // indirect
golang.org/x/time v0.3.0 // indirect
golang.org/x/tools v0.9.1 // indirect
golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
golang.zx2c4.com/wintun v0.0.0-20211104114900-415007cec224 // indirect
golang.zx2c4.com/wireguard v0.0.0-20220318042302-193cf8d6a5d6 // indirect
golang.zx2c4.com/wireguard/windows v0.5.4-0.20220317000008-6432784c2469 // indirect
google.golang.org/genproto v0.0.0-20230110181048-76db0878b65f // indirect
google.golang.org/grpc v1.53.0-dev.0.20230123225046-4075ef07c5d5 // indirect
google.golang.org/protobuf v1.31.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
gotest.tools/v3 v3.4.0 // indirect
gvisor.dev/gvisor v0.0.0-20220326024801-5d1f3d24cb84 // indirect
lukechampine.com/blake3 v1.2.1 // indirect
)

File diff suppressed because it is too large Load Diff

View File

@ -30,6 +30,7 @@ var (
udpQueue = make(chan C.PacketAdapter, 200)
natTable = nat.New()
rules []C.Rule
rewrites C.RewriteRule
listeners = make(map[string]C.InboundListener)
subRules map[string][]C.Rule
proxies = make(map[string]C.Proxy)
@ -179,6 +180,18 @@ func isHandle(t C.Type) bool {
return status == Running || (status == Inner && t == C.INNER)
}
// Rewrites return all rewrites
func Rewrites() C.RewriteRule {
return rewrites
}
// UpdateRewrites handle update rewrites
func UpdateRewrites(rules C.RewriteRule) {
configMux.Lock()
rewrites = rules
configMux.Unlock()
}
// processUDP starts a loop to handle udp packet
func processUDP() {
queue := udpQueue
@ -433,8 +446,9 @@ func handleTCPConn(connCtx C.ConnContext) {
return
}
isMitmProxy := metadata.Type == C.MITM
dialMetadata := metadata
if len(metadata.Host) > 0 {
if len(metadata.Host) > 0 && !isMitmProxy {
if node, ok := resolver.DefaultHosts.Search(metadata.Host, false); ok {
if dstIp, _ := node.RandIP(); !FakeIPRange().Contains(dstIp) {
dialMetadata.DstIP = dstIp