refactor: sniffer param force and reverses deprecated, will be removed when release version, replace force-domain and skip-sni,
force-domain add '+' equivalent to force is true sniffer: enable: true force-domain: - "google.com" skip-sni: - www.baidu.com sniffing: - tls
This commit is contained in:
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e76e0f5e03
commit
b6a134b34c
3 changed files with 73 additions and 64 deletions
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@ -20,40 +20,11 @@ var Dispatcher SnifferDispatcher
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type SnifferDispatcher struct {
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type SnifferDispatcher struct {
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enable bool
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enable bool
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force bool
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sniffers []C.Sniffer
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sniffers []C.Sniffer
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domains *trie.DomainTrie[bool]
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tcpHandler func(conn *CN.BufferedConn, metadata *C.Metadata)
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}
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func (sd *SnifferDispatcher) forceReplace(conn *CN.BufferedConn, metadata *C.Metadata) {
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foreDomain *trie.DomainTrie[bool]
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host, err := sd.sniffDomain(conn, metadata)
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skipSNI *trie.DomainTrie[bool]
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if err != nil {
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log.Debugln("[Sniffer] All sniffing sniff failed with from [%s:%s] to [%s:%s]", metadata.SrcIP, metadata.SrcPort, metadata.String(), metadata.DstPort)
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return
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} else {
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if sd.inReverse(host) {
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log.Debugln("[Sniffer] Skip replace host:%s", host)
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return
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}
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}
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sd.replaceDomain(metadata, host)
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}
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func (sd *SnifferDispatcher) replace(conn *CN.BufferedConn, metadata *C.Metadata) {
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if metadata.Host != "" && !sd.inReverse(metadata.Host) {
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log.Debugln("[Sniffer] Skip Sniff domain:%s", metadata.Host)
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return
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}
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host, err := sd.sniffDomain(conn, metadata)
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if err != nil {
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log.Debugln("[Sniffer] All sniffing sniff failed with from [%s:%s] to [%s:%s]", metadata.SrcIP, metadata.SrcPort, metadata.String(), metadata.DstPort)
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return
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}
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sd.replaceDomain(metadata, host)
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}
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}
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func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
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func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
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@ -62,11 +33,19 @@ func (sd *SnifferDispatcher) TCPSniff(conn net.Conn, metadata *C.Metadata) {
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return
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return
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}
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}
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sd.tcpHandler(bufConn, metadata)
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if metadata.Host == "" || sd.foreDomain.Search(metadata.Host) != nil {
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}
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if host, err := sd.sniffDomain(bufConn, metadata); err != nil {
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log.Debugln("[Sniffer] All sniffing sniff failed with from [%s:%s] to [%s:%s]", metadata.SrcIP, metadata.SrcPort, metadata.String(), metadata.DstPort)
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return
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} else {
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if sd.skipSNI.Search(host) != nil {
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log.Debugln("[Sniffer] Skip sni[%s]", host)
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return
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}
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func (sd *SnifferDispatcher) inReverse(host string) bool {
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sd.replaceDomain(metadata, host)
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return sd.domains != nil && sd.domains.Search(host) != nil
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}
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}
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}
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}
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func (sd *SnifferDispatcher) replaceDomain(metadata *C.Metadata, host string) {
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func (sd *SnifferDispatcher) replaceDomain(metadata *C.Metadata, host string) {
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@ -122,11 +101,11 @@ func NewCloseSnifferDispatcher() (*SnifferDispatcher, error) {
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return &dispatcher, nil
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return &dispatcher, nil
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}
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}
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func NewSnifferDispatcher(needSniffer []C.SnifferType, force bool, reverses *trie.DomainTrie[bool]) (*SnifferDispatcher, error) {
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func NewSnifferDispatcher(needSniffer []C.SnifferType, forceDomain *trie.DomainTrie[bool], skipSNI *trie.DomainTrie[bool]) (*SnifferDispatcher, error) {
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dispatcher := SnifferDispatcher{
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dispatcher := SnifferDispatcher{
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enable: true,
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enable: true,
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force: force,
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foreDomain: forceDomain,
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domains: reverses,
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skipSNI: skipSNI,
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}
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}
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for _, snifferName := range needSniffer {
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for _, snifferName := range needSniffer {
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@ -139,12 +118,6 @@ func NewSnifferDispatcher(needSniffer []C.SnifferType, force bool, reverses *tri
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dispatcher.sniffers = append(dispatcher.sniffers, sniffer)
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dispatcher.sniffers = append(dispatcher.sniffers, sniffer)
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}
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}
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if force {
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dispatcher.tcpHandler = dispatcher.forceReplace
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} else {
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dispatcher.tcpHandler = dispatcher.replace
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}
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return &dispatcher, nil
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return &dispatcher, nil
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}
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}
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@ -125,6 +125,8 @@ type Sniffer struct {
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Force bool
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Force bool
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Sniffers []C.SnifferType
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Sniffers []C.SnifferType
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Reverses *trie.DomainTrie[bool]
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Reverses *trie.DomainTrie[bool]
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ForceDomain *trie.DomainTrie[bool]
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SkipSNI *trie.DomainTrie[bool]
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}
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}
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// Experimental config
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// Experimental config
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@ -217,9 +219,11 @@ type RawConfig struct {
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type SnifferRaw struct {
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type SnifferRaw struct {
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Enable bool `yaml:"enable" json:"enable"`
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Enable bool `yaml:"enable" json:"enable"`
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Force bool `yaml:"force" json:"force"`
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Sniffing []string `yaml:"sniffing" json:"sniffing"`
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Sniffing []string `yaml:"sniffing" json:"sniffing"`
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Force bool `yaml:"force" json:"force"`
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Reverse []string `yaml:"reverses" json:"reverses"`
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Reverse []string `yaml:"reverses" json:"reverses"`
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ForceDomain []string `yaml:"force-domain" json:"force-domain"`
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SkipSNI []string `yaml:"skip-sni" json:"skip-sni"`
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}
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}
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// Parse config
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// Parse config
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@ -292,6 +296,8 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
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Force: false,
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Force: false,
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Sniffing: []string{},
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Sniffing: []string{},
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Reverse: []string{},
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Reverse: []string{},
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ForceDomain: []string{},
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SkipSNI: []string{},
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},
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},
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Profile: Profile{
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Profile: Profile{
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StoreSelected: true,
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StoreSelected: true,
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@ -928,13 +934,43 @@ func parseSniffer(snifferRaw SnifferRaw) (*Sniffer, error) {
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sniffer.Sniffers = append(sniffer.Sniffers, st)
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sniffer.Sniffers = append(sniffer.Sniffers, st)
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}
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}
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sniffer.Reverses = trie.New[bool]()
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sniffer.ForceDomain = trie.New[bool]()
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for _, domain := range snifferRaw.ForceDomain {
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err := sniffer.ForceDomain.Insert(domain, true)
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if err != nil {
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return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
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}
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}
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sniffer.SkipSNI = trie.New[bool]()
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for _, domain := range snifferRaw.ForceDomain {
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err := sniffer.SkipSNI.Insert(domain, true)
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if err != nil {
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return nil, fmt.Errorf("error domian[%s] in force-domain, error:%v", domain, err)
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}
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}
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// Compatibility, remove it when release
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if strings.Contains(C.Version, "alpha") || strings.Contains(C.Version, "develop") || strings.Contains(C.Version, "1.10.0") {
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log.Warnln("Sniffer param force and reverses deprecated, will be removed in the release version")
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if snifferRaw.Force {
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// match all domain
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sniffer.ForceDomain.Insert("+", true)
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for _, domain := range snifferRaw.Reverse {
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for _, domain := range snifferRaw.Reverse {
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err := sniffer.Reverses.Insert(domain, true)
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err := sniffer.SkipSNI.Insert(domain, true)
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if err != nil {
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if err != nil {
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return nil, fmt.Errorf("error domian[%s], error:%v", domain, err)
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return nil, fmt.Errorf("error domian[%s], error:%v", domain, err)
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}
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}
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}
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}
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} else {
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for _, domain := range snifferRaw.Reverse {
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err := sniffer.ForceDomain.Insert(domain, true)
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if err != nil {
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return nil, fmt.Errorf("error domian[%s], error:%v", domain, err)
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}
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}
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}
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}
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return sniffer, nil
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return sniffer, nil
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}
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}
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@ -222,7 +222,7 @@ func updateTun(tun *config.Tun, dns *config.DNS) {
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func updateSniffer(sniffer *config.Sniffer) {
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func updateSniffer(sniffer *config.Sniffer) {
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if sniffer.Enable {
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if sniffer.Enable {
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dispatcher, err := SNI.NewSnifferDispatcher(sniffer.Sniffers, sniffer.Force, sniffer.Reverses)
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dispatcher, err := SNI.NewSnifferDispatcher(sniffer.Sniffers, sniffer.ForceDomain, sniffer.SkipSNI)
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if err != nil {
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if err != nil {
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log.Warnln("initial sniffer failed, err:%v", err)
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log.Warnln("initial sniffer failed, err:%v", err)
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}
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}
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