chore: rebuild ca parsing

adapter/outbound/http.go

@@ -14,9 +14,9 @@ import (
 	"strconv"
 
 	N "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 )
 
@@ -157,21 +157,15 @@ func NewHttp(option HttpOption) (*Http, error) {
 		if option.SNI != "" {
 			sni = option.SNI
 		}
-		if len(option.Fingerprint) == 0 {
-			tlsConfig = tlsC.GetGlobalTLSConfig(&tls.Config{
-				InsecureSkipVerify: option.SkipCertVerify,
-				ServerName:         sni,
-			})
-		} else {
 		var err error
-			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(&tls.Config{
+		tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(&tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
 			ServerName:         sni,
-			}, option.Fingerprint); err != nil {
+		}, option.Fingerprint)
+		if err != nil {
 			return nil, err
 		}
 	}
-	}
 
 	return &Http{
 		Base: &Base{

adapter/outbound/hysteria.go

@@ -2,15 +2,11 @@ package outbound
 
 import (
 	"context"
-	"crypto/sha256"
 	"crypto/tls"
 	"encoding/base64"
-	"encoding/hex"
-	"encoding/pem"
 	"fmt"
 	"net"
 	"net/netip"
-	"os"
 	"strconv"
 	"time"
 
@@ -18,9 +14,9 @@ import (
 	"github.com/metacubex/quic-go/congestion"
 	M "github.com/sagernet/sing/common/metadata"
 
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
 	hyCongestion "github.com/Dreamacro/clash/transport/hysteria/congestion"
@@ -150,38 +146,11 @@ func NewHysteria(option HysteriaOption) (*Hysteria, error) {
 		MinVersion:         tls.VersionTLS13,
 	}
 
-	var bs []byte
 	var err error
-	if len(option.CustomCA) > 0 {
+	tlsConfig, err = ca.GetTLSConfig(tlsConfig, option.Fingerprint, option.CustomCA, option.CustomCAString)
-		bs, err = os.ReadFile(option.CustomCA)
-		if err != nil {
-			return nil, fmt.Errorf("hysteria %s load ca error: %w", addr, err)
-		}
-	} else if option.CustomCAString != "" {
-		bs = []byte(option.CustomCAString)
-	}
-
-	if len(bs) > 0 {
-		block, _ := pem.Decode(bs)
-		if block == nil {
-			return nil, fmt.Errorf("CA cert is not PEM")
-		}
-
-		fpBytes := sha256.Sum256(block.Bytes)
-		if len(option.Fingerprint) == 0 {
-			option.Fingerprint = hex.EncodeToString(fpBytes[:])
-		}
-	}
-
-	if len(option.Fingerprint) != 0 {
-		var err error
-		tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
 	if err != nil {
 		return nil, err
 	}
-	} else {
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-	}
 
 	if len(option.ALPN) > 0 {
 		tlsConfig.NextProtos = option.ALPN

adapter/outbound/hysteria2.go

@@ -2,21 +2,17 @@ package outbound
 
 import (
 	"context"
-	"crypto/sha256"
 	"crypto/tls"
-	"encoding/hex"
-	"encoding/pem"
 	"errors"
 	"fmt"
 	"net"
-	"os"
 	"runtime"
 	"strconv"
 
 	CN "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	tuicCommon "github.com/Dreamacro/clash/transport/tuic/common"
 
@@ -143,38 +139,11 @@ func NewHysteria2(option Hysteria2Option) (*Hysteria2, error) {
 		MinVersion:         tls.VersionTLS13,
 	}
 
-	var bs []byte
 	var err error
-	if len(option.CustomCA) > 0 {
+	tlsConfig, err = ca.GetTLSConfig(tlsConfig, option.Fingerprint, option.CustomCA, option.CustomCAString)
-		bs, err = os.ReadFile(option.CustomCA)
-		if err != nil {
-			return nil, fmt.Errorf("hysteria %s load ca error: %w", option.Name, err)
-		}
-	} else if option.CustomCAString != "" {
-		bs = []byte(option.CustomCAString)
-	}
-
-	if len(bs) > 0 {
-		block, _ := pem.Decode(bs)
-		if block == nil {
-			return nil, fmt.Errorf("CA cert is not PEM")
-		}
-
-		fpBytes := sha256.Sum256(block.Bytes)
-		if len(option.Fingerprint) == 0 {
-			option.Fingerprint = hex.EncodeToString(fpBytes[:])
-		}
-	}
-
-	if len(option.Fingerprint) != 0 {
-		var err error
-		tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
 	if err != nil {
 		return nil, err
 	}
-	} else {
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-	}
 
 	if len(option.ALPN) > 0 {
 		tlsConfig.NextProtos = option.ALPN

adapter/outbound/socks5.go

@@ -10,9 +10,9 @@ import (
 	"strconv"
 
 	N "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
 )
@@ -180,15 +180,12 @@ func NewSocks5(option Socks5Option) (*Socks5, error) {
 			ServerName:         option.Server,
 		}
 
-		if len(option.Fingerprint) == 0 {
-			tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-		} else {
 		var err error
-			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
+		tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
+		if err != nil {
 			return nil, err
 		}
 	}
-	}
 
 	return &Socks5{
 		Base: &Base{

adapter/outbound/trojan.go

@@ -9,6 +9,7 @@ import (
 	"strconv"
 
 	N "github.com/Dreamacro/clash/common/net"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
 	tlsC "github.com/Dreamacro/clash/component/tls"
@@ -280,14 +281,11 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 			ServerName:         tOption.ServerName,
 		}
 
-		if len(option.Fingerprint) == 0 {
-			tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-		} else {
 		var err error
-			if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
+		tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
+		if err != nil {
 			return nil, err
 		}
-		}
 
 		t.transport = gun.NewHTTP2Client(dialFn, tlsConfig, tOption.ClientFingerprint, t.realityConfig)
 

adapter/outbound/tuic.go

@@ -2,22 +2,18 @@ package outbound
 
 import (
 	"context"
-	"crypto/sha256"
 	"crypto/tls"
-	"encoding/hex"
-	"encoding/pem"
 	"errors"
 	"fmt"
 	"math"
 	"net"
-	"os"
 	"strconv"
 	"time"
 
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
 	"github.com/Dreamacro/clash/component/resolver"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/tuic"
 
@@ -162,38 +158,11 @@ func NewTuic(option TuicOption) (*Tuic, error) {
 		tlsConfig.ServerName = option.SNI
 	}
 
-	var bs []byte
 	var err error
-	if len(option.CustomCA) > 0 {
+	tlsConfig, err = ca.GetTLSConfig(tlsConfig, option.Fingerprint, option.CustomCA, option.CustomCAString)
-		bs, err = os.ReadFile(option.CustomCA)
-		if err != nil {
-			return nil, fmt.Errorf("tuic %s load ca error: %w", addr, err)
-		}
-	} else if option.CustomCAString != "" {
-		bs = []byte(option.CustomCAString)
-	}
-
-	if len(bs) > 0 {
-		block, _ := pem.Decode(bs)
-		if block == nil {
-			return nil, fmt.Errorf("CA cert is not PEM")
-		}
-
-		fpBytes := sha256.Sum256(block.Bytes)
-		if len(option.Fingerprint) == 0 {
-			option.Fingerprint = hex.EncodeToString(fpBytes[:])
-		}
-	}
-
-	if len(option.Fingerprint) != 0 {
-		var err error
-		tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
 	if err != nil {
 		return nil, err
 	}
-	} else {
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-	}
 
 	if option.ALPN != nil { // structure's Decode will ensure value not nil when input has value even it was set an empty array
 		tlsConfig.NextProtos = option.ALPN

adapter/outbound/vless.go

@@ -15,6 +15,7 @@ import (
 	"github.com/Dreamacro/clash/common/convert"
 	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/common/utils"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
 	"github.com/Dreamacro/clash/component/resolver"
@@ -110,14 +111,10 @@ func (v *Vless) StreamConnContext(ctx context.Context, c net.Conn, metadata *C.M
 				NextProtos:         []string{"http/1.1"},
 			}
 
-			if len(v.option.Fingerprint) == 0 {
+			wsOpts.TLSConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint)
-				wsOpts.TLSConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-			} else {
-				wsOpts.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint)
 			if err != nil {
 				return nil, err
 			}
-			}
 
 			if v.option.ServerName != "" {
 				wsOpts.TLSConfig.ServerName = v.option.ServerName
@@ -592,7 +589,7 @@ func NewVless(option VlessOption) (*Vless, error) {
 		}
 		var tlsConfig *tls.Config
 		if option.TLS {
-			tlsConfig = tlsC.GetGlobalTLSConfig(&tls.Config{
+			tlsConfig = ca.GetGlobalTLSConfig(&tls.Config{
 				InsecureSkipVerify: v.option.SkipCertVerify,
 				ServerName:         v.option.ServerName,
 			})

adapter/outbound/vmess.go

@@ -13,6 +13,7 @@ import (
 
 	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/common/utils"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/proxydialer"
 	"github.com/Dreamacro/clash/component/resolver"
@@ -127,13 +128,10 @@ func (v *Vmess) StreamConnContext(ctx context.Context, c net.Conn, metadata *C.M
 				NextProtos:         []string{"http/1.1"},
 			}
 
-			if len(v.option.Fingerprint) == 0 {
+			wsOpts.TLSConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint)
-				wsOpts.TLSConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+			if err != nil {
-			} else {
-				if wsOpts.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, v.option.Fingerprint); err != nil {
 				return nil, err
 			}
-			}
 
 			if v.option.ServerName != "" {
 				wsOpts.TLSConfig.ServerName = v.option.ServerName
@@ -483,7 +481,7 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 		}
 		var tlsConfig *tls.Config
 		if option.TLS {
-			tlsConfig = tlsC.GetGlobalTLSConfig(&tls.Config{
+			tlsConfig = ca.GetGlobalTLSConfig(&tls.Config{
 				InsecureSkipVerify: v.option.SkipCertVerify,
 				ServerName:         v.option.ServerName,
 			})

component/ca/config.go

@@ -1,4 +1,4 @@
-package tls
+package ca
 
 import (
 	"bytes"
@@ -8,12 +8,13 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"os"
 	"strings"
 	"sync"
 )
 
 var trustCerts []*x509.Certificate
-var certPool *x509.CertPool
+var globalCertPool *x509.CertPool
 var mutex sync.RWMutex
 var errNotMatch = errors.New("certificate fingerprints do not match")
 
@@ -33,12 +34,12 @@ func AddCertificate(certificate string) error {
 
 func initializeCertPool() {
 	var err error
-	certPool, err = x509.SystemCertPool()
+	globalCertPool, err = x509.SystemCertPool()
 	if err != nil {
-		certPool = x509.NewCertPool()
+		globalCertPool = x509.NewCertPool()
 	}
 	for _, cert := range trustCerts {
-		certPool.AddCert(cert)
+		globalCertPool.AddCert(cert)
 	}
 }
 
@@ -53,15 +54,15 @@ func getCertPool() *x509.CertPool {
 	if len(trustCerts) == 0 {
 		return nil
 	}
-	if certPool == nil {
+	if globalCertPool == nil {
 		mutex.Lock()
 		defer mutex.Unlock()
-		if certPool != nil {
+		if globalCertPool != nil {
-			return certPool
+			return globalCertPool
 		}
 		initializeCertPool()
 	}
-	return certPool
+	return globalCertPool
 }
 
 func verifyFingerprint(fingerprint *[32]byte) func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error {
@@ -94,29 +95,49 @@ func convertFingerprint(fingerprint string) (*[32]byte, error) {
 	return (*[32]byte)(fpByte), nil
 }
 
-func GetDefaultTLSConfig() *tls.Config {
+// GetTLSConfig specified fingerprint, customCA and customCAString
-	return GetGlobalTLSConfig(nil)
+func GetTLSConfig(tlsConfig *tls.Config, fingerprint string, customCA string, customCAString string) (*tls.Config, error) {
+	if tlsConfig == nil {
+		tlsConfig = &tls.Config{}
+	}
+	var certificate []byte
+	var err error
+	if len(customCA) > 0 {
+		certificate, err = os.ReadFile(customCA)
+		if err != nil {
+			return nil, fmt.Errorf("load ca error: %w", err)
+		}
+	} else if customCAString != "" {
+		certificate = []byte(customCAString)
+	}
+	if len(certificate) > 0 {
+		certPool := x509.NewCertPool()
+		if !certPool.AppendCertsFromPEM(certificate) {
+			return nil, fmt.Errorf("failed to parse certificate:\n\n %s", certificate)
+		}
+		tlsConfig.RootCAs = certPool
+	} else {
+		tlsConfig.RootCAs = getCertPool()
+	}
+	if len(fingerprint) > 0 {
+		var fingerprintBytes *[32]byte
+		fingerprintBytes, err = convertFingerprint(fingerprint)
+		if err != nil {
+			return nil, err
+		}
+		tlsConfig = GetGlobalTLSConfig(tlsConfig)
+		tlsConfig.VerifyPeerCertificate = verifyFingerprint(fingerprintBytes)
+		tlsConfig.InsecureSkipVerify = true
+	}
+	return tlsConfig, nil
 }
 
 // GetSpecifiedFingerprintTLSConfig specified fingerprint
 func GetSpecifiedFingerprintTLSConfig(tlsConfig *tls.Config, fingerprint string) (*tls.Config, error) {
-	if fingerprintBytes, err := convertFingerprint(fingerprint); err != nil {
+	return GetTLSConfig(tlsConfig, fingerprint, "", "")
-		return nil, err
-	} else {
-		tlsConfig = GetGlobalTLSConfig(tlsConfig)
-		tlsConfig.VerifyPeerCertificate = verifyFingerprint(fingerprintBytes)
-		tlsConfig.InsecureSkipVerify = true
-		return tlsConfig, nil
-	}
 }
 
 func GetGlobalTLSConfig(tlsConfig *tls.Config) *tls.Config {
-	certPool := getCertPool()
+	tlsConfig, _ = GetTLSConfig(tlsConfig, "", "", "")
-	if tlsConfig == nil {
-		return &tls.Config{
-			RootCAs: certPool,
-		}
-	}
-	tlsConfig.RootCAs = certPool
 	return tlsConfig
 }

component/http/http.go

@@ -2,6 +2,7 @@ package http
 
 import (
 	"context"
+	"crypto/tls"
 	"io"
 	"net"
 	"net/http"
@@ -9,7 +10,7 @@ import (
 	"strings"
 	"time"
 
-	"github.com/Dreamacro/clash/component/tls"
+	"github.com/Dreamacro/clash/component/ca"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/listener/inner"
 )
@@ -58,7 +59,7 @@ func HttpRequest(ctx context.Context, url, method string, header map[string][]st
 				return d.DialContext(ctx, network, address)
 			}
 		},
-		TLSClientConfig: tls.GetDefaultTLSConfig(),
+		TLSClientConfig: ca.GetGlobalTLSConfig(&tls.Config{}),
 	}
 
 	client := http.Client{Transport: transport}

dns/client.go

@@ -9,9 +9,9 @@ import (
 	"strings"
 
 	"github.com/Dreamacro/clash/common/atomic"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/resolver"
-	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 
 	D "github.com/miekg/dns"
@@ -99,7 +99,7 @@ func (c *client) ExchangeContext(ctx context.Context, m *D.Msg) (*D.Msg, error)
 	ch := make(chan result, 1)
 	go func() {
 		if strings.HasSuffix(c.Client.Net, "tls") {
-			conn = tls.Client(conn, tlsC.GetGlobalTLSConfig(c.Client.TLSConfig))
+			conn = tls.Client(conn, ca.GetGlobalTLSConfig(c.Client.TLSConfig))
 		}
 
 		msg, _, err := c.Client.ExchangeWithConn(m, &D.Conn{

dns/doh.go

@@ -15,7 +15,7 @@ import (
 	"sync"
 	"time"
 
-	tlsC "github.com/Dreamacro/clash/component/tls"
+	"github.com/Dreamacro/clash/component/ca"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
 	"github.com/metacubex/quic-go"
@@ -382,7 +382,7 @@ func (doh *dnsOverHTTPS) createClient(ctx context.Context) (*http.Client, error)
 // HTTP3 is enabled in the upstream options).  If this attempt is successful,
 // it returns an HTTP3 transport, otherwise it returns the H1/H2 transport.
 func (doh *dnsOverHTTPS) createTransport(ctx context.Context) (t http.RoundTripper, err error) {
-	tlsConfig := tlsC.GetGlobalTLSConfig(
+	tlsConfig := ca.GetGlobalTLSConfig(
 		&tls.Config{
 			InsecureSkipVerify:     false,
 			MinVersion:             tls.VersionTLS12,

dns/doq.go

@@ -12,7 +12,7 @@ import (
 	"sync"
 	"time"
 
-	tlsC "github.com/Dreamacro/clash/component/tls"
+	"github.com/Dreamacro/clash/component/ca"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
 	"github.com/metacubex/quic-go"
@@ -330,7 +330,7 @@ func (doq *dnsOverQUIC) openConnection(ctx context.Context) (conn quic.Connectio
 		return nil, err
 	}
 
-	tlsConfig := tlsC.GetGlobalTLSConfig(
+	tlsConfig := ca.GetGlobalTLSConfig(
 		&tls.Config{
 			ServerName:         host,
 			InsecureSkipVerify: false,

hub/executor/executor.go

@@ -16,6 +16,7 @@ import (
 	"github.com/Dreamacro/clash/adapter/inbound"
 	"github.com/Dreamacro/clash/adapter/outboundgroup"
 	"github.com/Dreamacro/clash/component/auth"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/component/dialer"
 	G "github.com/Dreamacro/clash/component/geodata"
 	"github.com/Dreamacro/clash/component/iface"
@@ -23,7 +24,6 @@ import (
 	"github.com/Dreamacro/clash/component/profile/cachefile"
 	"github.com/Dreamacro/clash/component/resolver"
 	SNI "github.com/Dreamacro/clash/component/sniffer"
-	CTLS "github.com/Dreamacro/clash/component/tls"
 	"github.com/Dreamacro/clash/component/trie"
 	"github.com/Dreamacro/clash/config"
 	C "github.com/Dreamacro/clash/constant"
@@ -83,9 +83,9 @@ func ApplyConfig(cfg *config.Config, force bool) {
 
 	tunnel.OnSuspend()
 
-	CTLS.ResetCertificate()
+	ca.ResetCertificate()
 	for _, c := range cfg.TLS.CustomTrustCert {
-		if err := CTLS.AddCertificate(c); err != nil {
+		if err := ca.AddCertificate(c); err != nil {
 			log.Warnln("%s\nadd error: %s", c, err.Error())
 		}
 	}

transport/sing-shadowtls/shadowtls.go

@@ -5,6 +5,7 @@ import (
 	"crypto/tls"
 	"net"
 
+	"github.com/Dreamacro/clash/component/ca"
 	tlsC "github.com/Dreamacro/clash/component/tls"
 	"github.com/Dreamacro/clash/log"
 
@@ -39,13 +40,10 @@ func NewShadowTLS(ctx context.Context, conn net.Conn, option *ShadowTLSOption) (
 	}
 
 	var err error
-	if len(option.Fingerprint) == 0 {
+	tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
+	if err != nil {
-	} else {
-		if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
 		return nil, err
 	}
-	}
 
 	tlsHandshake := shadowtls.DefaultTLSHandshakeFunc(option.Password, tlsConfig)
 	if len(option.ClientFingerprint) != 0 {

transport/trojan/trojan.go

@@ -14,6 +14,7 @@ import (
 
 	N "github.com/Dreamacro/clash/common/net"
 	"github.com/Dreamacro/clash/common/pool"
+	"github.com/Dreamacro/clash/component/ca"
 	tlsC "github.com/Dreamacro/clash/component/tls"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/transport/socks5"
@@ -77,14 +78,11 @@ func (t *Trojan) StreamConn(ctx context.Context, conn net.Conn) (net.Conn, error
 		ServerName:         t.option.ServerName,
 	}
 
-	if len(t.option.Fingerprint) == 0 {
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-	} else {
 	var err error
-		if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, t.option.Fingerprint); err != nil {
+	tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, t.option.Fingerprint)
+	if err != nil {
 		return nil, err
 	}
-	}
 
 	if len(t.option.ClientFingerprint) != 0 {
 		if t.option.Reality == nil {
@@ -112,7 +110,7 @@ func (t *Trojan) StreamConn(ctx context.Context, conn net.Conn) (net.Conn, error
 	ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
 	defer cancel()
 
-	err := tlsConn.HandshakeContext(ctx)
+	err = tlsConn.HandshakeContext(ctx)
 	return tlsConn, err
 }
 

transport/v2ray-plugin/websocket.go

@@ -6,7 +6,7 @@ import (
 	"net"
 	"net/http"
 
-	tlsC "github.com/Dreamacro/clash/component/tls"
+	"github.com/Dreamacro/clash/component/ca"
 	"github.com/Dreamacro/clash/transport/vmess"
 )
 
@@ -43,14 +43,11 @@ func NewV2rayObfs(ctx context.Context, conn net.Conn, option *Option) (net.Conn,
 			InsecureSkipVerify: option.SkipCertVerify,
 			NextProtos:         []string{"http/1.1"},
 		}
-		if len(option.Fingerprint) == 0 {
-			config.TLSConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-		} else {
 		var err error
-			if config.TLSConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint); err != nil {
+		config.TLSConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
+		if err != nil {
 			return nil, err
 		}
-		}
 
 		if host := config.Headers.Get("Host"); host != "" {
 			config.TLSConfig.ServerName = host

transport/vmess/tls.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"net"
 
+	"github.com/Dreamacro/clash/component/ca"
 	tlsC "github.com/Dreamacro/clash/component/tls"
 )
 
@@ -25,14 +26,11 @@ func StreamTLSConn(ctx context.Context, conn net.Conn, cfg *TLSConfig) (net.Conn
 		NextProtos:         cfg.NextProtos,
 	}
 
-	if len(cfg.FingerPrint) == 0 {
-		tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
-	} else {
 	var err error
-		if tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, cfg.FingerPrint); err != nil {
+	tlsConfig, err = ca.GetSpecifiedFingerprintTLSConfig(tlsConfig, cfg.FingerPrint)
+	if err != nil {
 		return nil, err
 	}
-	}
 
 	if len(cfg.ClientFingerprint) != 0 {
 		if cfg.Reality == nil {
@@ -51,7 +49,7 @@ func StreamTLSConn(ctx context.Context, conn net.Conn, cfg *TLSConfig) (net.Conn
 
 	tlsConn := tls.Client(conn, tlsConfig)
 
-	err := tlsConn.HandshakeContext(ctx)
+	err = tlsConn.HandshakeContext(ctx)
 	return tlsConn, err
 }