tidb misc 源码
tidb misc 代码
文件路径：/util/misc.go
// Copyright 2016 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package util
import (
"context"
"crypto"
"crypto/ecdsa"
"crypto/ed25519"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"fmt"
"math/big"
"net"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"sync"
"time"
"github.com/pingcap/errors"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/metrics"
"github.com/pingcap/tidb/parser"
"github.com/pingcap/tidb/parser/model"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/parser/terror"
"github.com/pingcap/tidb/util/collate"
"github.com/pingcap/tidb/util/logutil"
tlsutil "github.com/pingcap/tidb/util/tls"
"github.com/pingcap/tipb/go-tipb"
"go.uber.org/zap"
)
const (
// DefaultMaxRetries indicates the max retry count.
DefaultMaxRetries = 30
// RetryInterval indicates retry interval.
RetryInterval uint64 = 500
)
// RunWithRetry will run the f with backoff and retry.
// retryCnt: Max retry count
// backoff: When run f failed, it will sleep backoff * triedCount time.Millisecond.
// Function f should have two return value. The first one is an bool which indicate if the err if retryable.
// The second is if the f meet any error.
func RunWithRetry(retryCnt int, backoff uint64, f func() (bool, error)) (err error) {
for i := 1; i <= retryCnt; i++ {
var retryAble bool
retryAble, err = f()
if err == nil || !retryAble {
return errors.Trace(err)
}
sleepTime := time.Duration(backoff*uint64(i)) * time.Millisecond
time.Sleep(sleepTime)
}
return errors.Trace(err)
}
// WithRecovery wraps goroutine startup call with force recovery.
// it will dump current goroutine stack into log if catch any recover result.
//
// exec: execute logic function.
// recoverFn: handler will be called after recover and before dump stack, passing `nil` means noop.
func WithRecovery(exec func(), recoverFn func(r interface{})) {
defer func() {
r := recover()
if recoverFn != nil {
recoverFn(r)
}
if r != nil {
logutil.BgLogger().Error("panic in the recoverable goroutine",
zap.Reflect("r", r),
zap.Stack("stack trace"))
}
}()
exec()
}
// Recover includes operations such as recovering, clearing，and printing information.
// It will dump current goroutine stack into log if catch any recover result.
//
// metricsLabel: The label of PanicCounter metrics.
// funcInfo: Some information for the panic function.
// recoverFn: Handler will be called after recover and before dump stack, passing `nil` means noop.
// quit: If this value is true, the current program exits after recovery.
func Recover(metricsLabel, funcInfo string, recoverFn func(), quit bool) {
//nolint: revive
r := recover()
if r == nil {
return
}
if recoverFn != nil {
recoverFn()
}
logutil.BgLogger().Error("panic in the recoverable goroutine",
zap.String("label", metricsLabel),
zap.String("funcInfo", funcInfo),
zap.Reflect("r", r),
zap.Stack("stack"))
metrics.PanicCounter.WithLabelValues(metricsLabel).Inc()
if quit {
// Wait for metrics to be pushed.
time.Sleep(time.Second * 15)
os.Exit(1)
}
}
// HasCancelled checks whether context has be cancelled.
func HasCancelled(ctx context.Context) (cancel bool) {
select {
case <-ctx.Done():
cancel = true
default:
}
return
}
const (
// syntaxErrorPrefix is the common prefix for SQL syntax error in TiDB.
syntaxErrorPrefix = "You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use"
)
// SyntaxError converts parser error to TiDB's syntax error.
func SyntaxError(err error) error {
if err == nil {
return nil
}
logutil.BgLogger().Debug("syntax error", zap.Error(err))
// If the error is already a terror with stack, pass it through.
if errors.HasStack(err) {
cause := errors.Cause(err)
if _, ok := cause.(*terror.Error); ok {
return err
}
}
return parser.ErrParse.GenWithStackByArgs(syntaxErrorPrefix, err.Error())
}
// SyntaxWarn converts parser warn to TiDB's syntax warn.
func SyntaxWarn(err error) error {
if err == nil {
return nil
}
logutil.BgLogger().Debug("syntax error", zap.Error(err))
// If the warn is already a terror with stack, pass it through.
if errors.HasStack(err) {
cause := errors.Cause(err)
if _, ok := cause.(*terror.Error); ok {
return err
}
}
return parser.ErrParse.GenWithStackByArgs(syntaxErrorPrefix, err.Error())
}
var (
// InformationSchemaName is the `INFORMATION_SCHEMA` database name.
InformationSchemaName = model.NewCIStr("INFORMATION_SCHEMA")
// PerformanceSchemaName is the `PERFORMANCE_SCHEMA` database name.
PerformanceSchemaName = model.NewCIStr("PERFORMANCE_SCHEMA")
// MetricSchemaName is the `METRICS_SCHEMA` database name.
MetricSchemaName = model.NewCIStr("METRICS_SCHEMA")
// ClusterTableInstanceColumnName is the `INSTANCE` column name of the cluster table.
ClusterTableInstanceColumnName = "INSTANCE"
)
// IsMemOrSysDB uses to check whether dbLowerName is memory database or system database.
func IsMemOrSysDB(dbLowerName string) bool {
return IsMemDB(dbLowerName) || IsSysDB(dbLowerName)
}
// IsMemDB checks whether dbLowerName is memory database.
func IsMemDB(dbLowerName string) bool {
switch dbLowerName {
case InformationSchemaName.L,
PerformanceSchemaName.L,
MetricSchemaName.L:
return true
}
return false
}
// IsSysDB checks whether dbLowerName is system database.
func IsSysDB(dbLowerName string) bool {
return dbLowerName == mysql.SystemDB
}
// IsSystemView is similar to IsMemOrSyDB, but does not include the mysql schema
func IsSystemView(dbLowerName string) bool {
switch dbLowerName {
case InformationSchemaName.L,
PerformanceSchemaName.L,
MetricSchemaName.L:
return true
}
return false
}
// X509NameOnline prints pkix.Name into old X509_NAME_oneline format.
// https://www.openssl.org/docs/manmaster/man3/X509_NAME_oneline.html
func X509NameOnline(n pkix.Name) string {
s := make([]string, 0, len(n.Names))
for _, name := range n.Names {
oid := name.Type.String()
// unlike MySQL, TiDB only support check pkixAttributeTypeNames fields
if n, exist := pkixAttributeTypeNames[oid]; exist {
s = append(s, n+"="+fmt.Sprint(name.Value))
}
}
if len(s) == 0 {
return ""
}
return "/" + strings.Join(s, "/")
}
const (
// Country is type name for country.
Country = "C"
// Organization is type name for organization.
Organization = "O"
// OrganizationalUnit is type name for organizational unit.
OrganizationalUnit = "OU"
// Locality is type name for locality.
Locality = "L"
// Email is type name for email.
Email = "emailAddress"
// CommonName is type name for common name.
CommonName = "CN"
// Province is type name for province or state.
Province = "ST"
)
// see go/src/crypto/x509/pkix/pkix.go:attributeTypeNames
var pkixAttributeTypeNames = map[string]string{
"2.5.4.6": Country,
"2.5.4.10": Organization,
"2.5.4.11": OrganizationalUnit,
"2.5.4.3": CommonName,
"2.5.4.5": "SERIALNUMBER",
"2.5.4.7": Locality,
"2.5.4.8": Province,
"2.5.4.9": "STREET",
"2.5.4.17": "POSTALCODE",
"1.2.840.113549.1.9.1": Email,
}
var pkixTypeNameAttributes = make(map[string]string)
// MockPkixAttribute generates mock AttributeTypeAndValue.
// only used for test.
func MockPkixAttribute(name, value string) pkix.AttributeTypeAndValue {
n, exists := pkixTypeNameAttributes[name]
if !exists {
panic(fmt.Sprintf("unsupport mock type: %s", name))
}
split := strings.Split(n, ".")
vs := make([]int, 0, len(split))
for _, v := range split {
i, err := strconv.Atoi(v)
if err != nil {
panic(err)
}
vs = append(vs, i)
}
return pkix.AttributeTypeAndValue{
Type: vs,
Value: value,
}
}
// SANType is enum value for GlobalPrivValue.SANs keys.
type SANType string
const (
// URI indicates uri info in SAN.
URI = SANType("URI")
// DNS indicates dns info in SAN.
DNS = SANType("DNS")
// IP indicates ip info in SAN.
IP = SANType("IP")
)
var supportSAN = map[SANType]struct{}{
URI: {},
DNS: {},
IP: {},
}
// ParseAndCheckSAN parses and check SAN str.
func ParseAndCheckSAN(san string) (map[SANType][]string, error) {
sanMap := make(map[SANType][]string)
sans := strings.Split(san, ",")
for _, san := range sans {
kv := strings.SplitN(san, ":", 2)
if len(kv) != 2 {
return nil, errors.Errorf("invalid SAN value %s", san)
}
k, v := SANType(strings.ToUpper(strings.TrimSpace(kv[0]))), strings.TrimSpace(kv[1])
if _, s := supportSAN[k]; !s {
return nil, errors.Errorf("unsupported SAN key %s, current only support %v", k, supportSAN)
}
sanMap[k] = append(sanMap[k], v)
}
return sanMap, nil
}
// CheckSupportX509NameOneline parses and validate input str is X509_NAME_oneline format
// and precheck check-item is supported by TiDB
// https://www.openssl.org/docs/manmaster/man3/X509_NAME_oneline.html
func CheckSupportX509NameOneline(oneline string) (err error) {
entries := strings.Split(oneline, `/`)
for _, entry := range entries {
if len(entry) == 0 {
continue
}
kvs := strings.Split(entry, "=")
if len(kvs) != 2 {
err = errors.Errorf("invalid X509_NAME input: %s", oneline)
return
}
k := kvs[0]
if _, support := pkixTypeNameAttributes[k]; !support {
err = errors.Errorf("Unsupport check '%s' in current version TiDB", k)
return
}
}
return
}
var tlsCipherString = map[uint16]string{
tls.TLS_RSA_WITH_RC4_128_SHA: "RC4-SHA",
tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA: "DES-CBC3-SHA",
tls.TLS_RSA_WITH_AES_128_CBC_SHA: "AES128-SHA",
tls.TLS_RSA_WITH_AES_256_CBC_SHA: "AES256-SHA",
tls.TLS_RSA_WITH_AES_128_CBC_SHA256: "AES128-SHA256",
tls.TLS_RSA_WITH_AES_128_GCM_SHA256: "AES128-GCM-SHA256",
tls.TLS_RSA_WITH_AES_256_GCM_SHA384: "AES256-GCM-SHA384",
tls.TLS_ECDHE_ECDSA_WITH_RC4_128_SHA: "ECDHE-ECDSA-RC4-SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA: "ECDHE-ECDSA-AES128-SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA: "ECDHE-ECDSA-AES256-SHA",
tls.TLS_ECDHE_RSA_WITH_RC4_128_SHA: "ECDHE-RSA-RC4-SHA",
tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA: "ECDHE-RSA-DES-CBC3-SHA",
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA: "ECDHE-RSA-AES128-SHA",
tls.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA: "ECDHE-RSA-AES256-SHA",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256: "ECDHE-ECDSA-AES128-SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256: "ECDHE-RSA-AES128-SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256: "ECDHE-RSA-AES128-GCM-SHA256",
tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256: "ECDHE-ECDSA-AES128-GCM-SHA256",
tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384: "ECDHE-RSA-AES256-GCM-SHA384",
tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384: "ECDHE-ECDSA-AES256-GCM-SHA384",
tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305: "ECDHE-RSA-CHACHA20-POLY1305",
tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305: "ECDHE-ECDSA-CHACHA20-POLY1305",
// TLS 1.3 cipher suites, compatible with mysql using '_'.
tls.TLS_AES_128_GCM_SHA256: "TLS_AES_128_GCM_SHA256",
tls.TLS_AES_256_GCM_SHA384: "TLS_AES_256_GCM_SHA384",
tls.TLS_CHACHA20_POLY1305_SHA256: "TLS_CHACHA20_POLY1305_SHA256",
}
// SupportCipher maintains cipher supported by TiDB.
var SupportCipher = make(map[string]struct{}, len(tlsCipherString))
// TLSCipher2String convert tls num to string.
// Taken from https://testssl.sh/openssl-rfc.mapping.html .
func TLSCipher2String(n uint16) string {
s, ok := tlsCipherString[n]
if !ok {
return ""
}
return s
}
// ColumnsToProto converts a slice of model.ColumnInfo to a slice of tipb.ColumnInfo.
func ColumnsToProto(columns []*model.ColumnInfo, pkIsHandle bool) []*tipb.ColumnInfo {
cols := make([]*tipb.ColumnInfo, 0, len(columns))
for _, c := range columns {
col := ColumnToProto(c)
// TODO: Here `PkHandle`'s meaning is changed, we will change it to `IsHandle` when tikv's old select logic
// is abandoned.
if (pkIsHandle && mysql.HasPriKeyFlag(c.GetFlag())) || c.ID == model.ExtraHandleID {
col.PkHandle = true
} else {
col.PkHandle = false
}
cols = append(cols, col)
}
return cols
}
// ColumnToProto converts model.ColumnInfo to tipb.ColumnInfo.
func ColumnToProto(c *model.ColumnInfo) *tipb.ColumnInfo {
pc := &tipb.ColumnInfo{
ColumnId: c.ID,
Collation: collate.RewriteNewCollationIDIfNeeded(int32(mysql.CollationNames[c.GetCollate()])),
ColumnLen: int32(c.GetFlen()),
Decimal: int32(c.GetDecimal()),
Flag: int32(c.GetFlag()),
Elems: c.GetElems(),
}
pc.Tp = int32(c.GetType())
return pc
}
func init() {
for _, value := range tlsCipherString {
SupportCipher[value] = struct{}{}
}
for key, value := range pkixAttributeTypeNames {
pkixTypeNameAttributes[value] = key
}
}
// GetSequenceByName could be used in expression package without import cycle problem.
var GetSequenceByName func(is interface{}, schema, sequence model.CIStr) (SequenceTable, error)
// SequenceTable is implemented by tableCommon,
// and it is specialised in handling sequence operation.
// Otherwise calling table will cause import cycle problem.
type SequenceTable interface {
GetSequenceID() int64
GetSequenceNextVal(ctx interface{}, dbName, seqName string) (int64, error)
SetSequenceVal(ctx interface{}, newVal int64, dbName, seqName string) (int64, bool, error)
}
// LoadTLSCertificates loads CA/KEY/CERT for special paths.
func LoadTLSCertificates(ca, key, cert string, autoTLS bool, rsaKeySize int) (tlsConfig *tls.Config, autoReload bool, err error) {
autoReload = false
if len(cert) == 0 || len(key) == 0 {
if !autoTLS {
logutil.BgLogger().Warn("Automatic TLS Certificate creation is disabled", zap.Error(err))
return
}
autoReload = true
tempStoragePath := config.GetGlobalConfig().TempStoragePath
cert = filepath.Join(tempStoragePath, "/cert.pem")
key = filepath.Join(tempStoragePath, "/key.pem")
err = createTLSCertificates(cert, key, rsaKeySize)
if err != nil {
logutil.BgLogger().Warn("TLS Certificate creation failed", zap.Error(err))
return
}
}
var tlsCert tls.Certificate
tlsCert, err = tls.LoadX509KeyPair(cert, key)
if err != nil {
logutil.BgLogger().Warn("load x509 failed", zap.Error(err))
err = errors.Trace(err)
return
}
requireTLS := tlsutil.RequireSecureTransport.Load()
var minTLSVersion uint16 = tls.VersionTLS11
switch tlsver := config.GetGlobalConfig().Security.MinTLSVersion; tlsver {
case "TLSv1.0":
minTLSVersion = tls.VersionTLS10
case "TLSv1.1":
minTLSVersion = tls.VersionTLS11
case "TLSv1.2":
minTLSVersion = tls.VersionTLS12
case "TLSv1.3":
minTLSVersion = tls.VersionTLS13
case "":
default:
logutil.BgLogger().Warn(
"Invalid TLS version, using default instead",
zap.String("tls-version", tlsver),
)
}
if minTLSVersion < tls.VersionTLS12 {
logutil.BgLogger().Warn(
"Minimum TLS version allows pre-TLSv1.2 protocols, this is not recommended",
)
}
// Try loading CA cert.
clientAuthPolicy := tls.NoClientCert
if requireTLS {
clientAuthPolicy = tls.RequestClientCert
}
var certPool *x509.CertPool
if len(ca) > 0 {
var caCert []byte
caCert, err = os.ReadFile(ca)
if err != nil {
logutil.BgLogger().Warn("read file failed", zap.Error(err))
err = errors.Trace(err)
return
}
certPool = x509.NewCertPool()
if certPool.AppendCertsFromPEM(caCert) {
if requireTLS {
clientAuthPolicy = tls.RequireAndVerifyClientCert
} else {
clientAuthPolicy = tls.VerifyClientCertIfGiven
}
}
}
// This excludes ciphers listed in tls.InsecureCipherSuites() and can be used to filter out more
var cipherSuites []uint16
var cipherNames []string
for _, sc := range tls.CipherSuites() {
switch sc.ID {
case tls.TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, tls.TLS_RSA_WITH_3DES_EDE_CBC_SHA:
logutil.BgLogger().Info("Disabling weak cipherSuite", zap.String("cipherSuite", sc.Name))
default:
cipherNames = append(cipherNames, sc.Name)
cipherSuites = append(cipherSuites, sc.ID)
}
}
logutil.BgLogger().Info("Enabled ciphersuites", zap.Strings("cipherNames", cipherNames))
/* #nosec G402 */
tlsConfig = &tls.Config{
Certificates: []tls.Certificate{tlsCert},
ClientCAs: certPool,
ClientAuth: clientAuthPolicy,
MinVersion: minTLSVersion,
CipherSuites: cipherSuites,
}
return
}
// IsTLSExpiredError checks error is caused by TLS expired.
func IsTLSExpiredError(err error) bool {
err = errors.Cause(err)
if inval, ok := err.(x509.CertificateInvalidError); !ok || inval.Reason != x509.Expired {
return false
}
return true
}
var (
internalClientInit sync.Once
internalHTTPClient *http.Client
internalHTTPSchema string
)
// InternalHTTPClient is used by TiDB-Server to request other components.
func InternalHTTPClient() *http.Client {
internalClientInit.Do(initInternalClient)
return internalHTTPClient
}
// InternalHTTPSchema specifies use http or https to request other components.
func InternalHTTPSchema() string {
internalClientInit.Do(initInternalClient)
return internalHTTPSchema
}
func initInternalClient() {
clusterSecurity := config.GetGlobalConfig().Security.ClusterSecurity()
tlsCfg, err := clusterSecurity.ToTLSConfig()
if err != nil {
logutil.BgLogger().Fatal("could not load cluster ssl", zap.Error(err))
}
if tlsCfg == nil {
internalHTTPSchema = "http"
internalHTTPClient = http.DefaultClient
return
}
internalHTTPSchema = "https"
internalHTTPClient = &http.Client{
Transport: &http.Transport{TLSClientConfig: tlsCfg},
}
}
// ComposeURL adds HTTP schema if missing and concats address with path
func ComposeURL(address, path string) string {
if strings.HasPrefix(address, "http://") || strings.HasPrefix(address, "https://") {
return fmt.Sprintf("%s%s", address, path)
}
return fmt.Sprintf("%s://%s%s", InternalHTTPSchema(), address, path)
}
// GetLocalIP will return a local IP(non-loopback, non 0.0.0.0), if there is one
func GetLocalIP() string {
addrs, err := net.InterfaceAddrs()
if err == nil {
for _, address := range addrs {
ipnet, ok := address.(*net.IPNet)
if ok && ipnet.IP.IsGlobalUnicast() {
return ipnet.IP.String()
}
}
}
return ""
}
// QueryStrForLog trim the query if the query length more than 4096
func QueryStrForLog(query string) string {
const size = 4096
if len(query) > size {
return query[:size] + fmt.Sprintf("(len: %d)", len(query))
}
return query
}
// CreateCertificates creates and writes a cert based on the params.
func CreateCertificates(certpath string, keypath string, rsaKeySize int, pubKeyAlgo x509.PublicKeyAlgorithm,
signAlgo x509.SignatureAlgorithm) error {
certValidity := 90 * 24 * time.Hour // 90 days
notBefore := time.Now()
notAfter := notBefore.Add(certValidity)
hostname, err := os.Hostname()
if err != nil {
return err
}
template := x509.Certificate{
Subject: pkix.Name{
CommonName: "TiDB_Server_Auto_Generated_Server_Certificate",
},
SerialNumber: big.NewInt(1),
NotBefore: notBefore,
NotAfter: notAfter,
DNSNames: []string{hostname},
SignatureAlgorithm: signAlgo,
}
var privKey crypto.Signer
switch pubKeyAlgo {
case x509.RSA:
privKey, err = rsa.GenerateKey(rand.Reader, rsaKeySize)
case x509.ECDSA:
privKey, err = ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
case x509.Ed25519:
_, privKey, err = ed25519.GenerateKey(rand.Reader)
default:
return errors.Errorf("unknown public key algorithm: %s", pubKeyAlgo.String())
}
if err != nil {
return err
}
// DER: Distinguished Encoding Rules, this is the ASN.1 encoding rule of the certificate.
derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, privKey.Public(), privKey)
if err != nil {
return err
}
certOut, err := os.Create(certpath)
if err != nil {
return err
}
if err := pem.Encode(certOut, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes}); err != nil {
return err
}
if err := certOut.Close(); err != nil {
return err
}
keyOut, err := os.OpenFile(keypath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
if err != nil {
return err
}
privBytes, err := x509.MarshalPKCS8PrivateKey(privKey)
if err != nil {
return err
}
if err := pem.Encode(keyOut, &pem.Block{Type: "PRIVATE KEY", Bytes: privBytes}); err != nil {
return err
}
if err := keyOut.Close(); err != nil {
return err
}
logutil.BgLogger().Info("TLS Certificates created", zap.String("cert", certpath), zap.String("key", keypath),
zap.Duration("validity", certValidity), zap.Int("rsaKeySize", rsaKeySize))
return nil
}
func createTLSCertificates(certpath string, keypath string, rsaKeySize int) error {
// use RSA and unspecified signature algorithm
return CreateCertificates(certpath, keypath, rsaKeySize, x509.RSA, x509.UnknownSignatureAlgorithm)
}
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
6、 golang
-
8、 openharmony