mirror of
https://github.com/XTLS/Xray-core.git
synced 2024-11-26 17:03:02 +00:00
Support using DOH server for type 65 query
This commit is contained in:
parent
d7c2c33547
commit
d2e79c281d
@ -390,6 +390,7 @@ type TLSConfig struct {
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PinnedPeerCertificatePublicKeySha256 *[]string `json:"pinnedPeerCertificatePublicKeySha256"`
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MasterKeyLog string `json:"masterKeyLog"`
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ECHConfig string `json:"echConfig"`
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ECHDOHServer string `json:"echDohServer"`
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}
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// Build implements Buildable.
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@ -446,6 +447,7 @@ func (c *TLSConfig) Build() (proto.Message, error) {
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config.MasterKeyLog = c.MasterKeyLog
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config.EchConfig = c.ECHConfig
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config.Ech_DOHserver = c.ECHDOHServer
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return config, nil
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}
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@ -390,7 +390,7 @@ func (c *Config) GetTLSConfig(opts ...Option) *tls.Config {
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config.KeyLogWriter = writer
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}
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}
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if len(c.EchConfig) > 0 {
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if len(c.EchConfig) > 0 || len(c.Ech_DOHserver) > 0 {
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err := ApplyECH(c, config)
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if err != nil {
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errors.LogError(context.Background(), err)
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@ -221,6 +221,7 @@ type Config struct {
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PinnedPeerCertificatePublicKeySha256 [][]byte `protobuf:"bytes,14,rep,name=pinned_peer_certificate_public_key_sha256,json=pinnedPeerCertificatePublicKeySha256,proto3" json:"pinned_peer_certificate_public_key_sha256,omitempty"`
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MasterKeyLog string `protobuf:"bytes,15,opt,name=master_key_log,json=masterKeyLog,proto3" json:"master_key_log,omitempty"`
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EchConfig string `protobuf:"bytes,16,opt,name=ech_config,json=echConfig,proto3" json:"ech_config,omitempty"`
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Ech_DOHserver string `protobuf:"bytes,17,opt,name=ech_DOHserver,json=echDOHserver,proto3" json:"ech_DOHserver,omitempty"`
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}
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func (x *Config) Reset() {
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@ -368,6 +369,13 @@ func (x *Config) GetEchConfig() string {
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return ""
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}
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func (x *Config) GetEch_DOHserver() string {
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if x != nil {
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return x.Ech_DOHserver
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}
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return ""
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}
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var File_transport_internet_tls_config_proto protoreflect.FileDescriptor
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var file_transport_internet_tls_config_proto_rawDesc = []byte{
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@ -399,7 +407,7 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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@ -449,14 +457,17 @@ var file_transport_internet_tls_config_proto_rawDesc = []byte{
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0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x54, 0x6c, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
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0x6f, 0x33,
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}
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var (
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@ -89,4 +89,5 @@ message Config {
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string master_key_log = 15;
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string ech_config = 16;
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string ech_DOHserver = 17;
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}
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@ -4,18 +4,107 @@
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package tls
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import (
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"context"
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"bytes"
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"crypto/tls"
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"encoding/base64"
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"io"
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"net/http"
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"regexp"
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"sync"
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"time"
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"github.com/miekg/dns"
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"github.com/xtls/xray-core/common/errors"
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)
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func ApplyECH(c *Config, config *tls.Config) error {
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ECHConfig, err := base64.StdEncoding.DecodeString(c.EchConfig)
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var ECHConfig []byte
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var err error
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if len(c.EchConfig) > 0 {
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ECHConfig, err = base64.StdEncoding.DecodeString(c.EchConfig)
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if err != nil {
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errors.LogError(context.Background(), "invalid ECH config")
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return errors.New("invalid ECH config")
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}
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} else {
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if c.ServerName == "" {
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return errors.New("Using DOH for ECH needs serverName")
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}
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ECHRecord, err := QueryRecord(c.ServerName, c.Ech_DOHserver)
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if err != nil {
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return err
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}
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ECHConfig, _ = base64.StdEncoding.DecodeString(ECHRecord)
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}
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config.EncryptedClientHelloConfigList = ECHConfig
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return nil
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}
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type record struct {
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record string
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expire time.Time
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}
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var (
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dnsCache = make(map[string]record)
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mutex sync.RWMutex
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)
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func QueryRecord(domain string, server string) (string, error) {
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mutex.RLock()
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defer mutex.RUnlock()
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rec, found := dnsCache[domain]
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if found && rec.expire.After(time.Now()) {
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return "", nil
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}
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record, err := dohQuery(server, domain)
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if err != nil {
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return "", err
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}
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rec.record = record
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rec.expire = time.Now().Add(time.Second * 600)
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return record, nil
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}
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func dohQuery(server string, domain string) (string, error) {
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m := new(dns.Msg)
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m.SetQuestion(dns.Fqdn(domain), dns.TypeHTTPS)
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msg, err := m.Pack()
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if err != nil {
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return "", err
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}
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client := &http.Client{
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Timeout: 5 * time.Second,
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}
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req, err := http.NewRequest("POST", server, bytes.NewReader(msg))
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if err != nil {
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return "", err
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}
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req.Header.Set("Content-Type", "application/dns-message")
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resp, err := client.Do(req)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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respBody, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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if resp.StatusCode != http.StatusOK {
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return "", errors.New("query failed with response code:", resp.StatusCode)
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}
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respMsg := new(dns.Msg)
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err = respMsg.Unpack(respBody)
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if err != nil {
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return "", err
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}
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if len(respMsg.Answer) > 0 {
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re := regexp.MustCompile(`ech="([^"]+)"`)
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match := re.FindStringSubmatch(respMsg.Answer[0].String())
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if match[1] != "" {
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return match[1], nil
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}
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}
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return "", errors.New("no ech record found")
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}
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