mirror of https://github.com/Dreamacro/clash.git
136 lines
2.7 KiB
Go
136 lines
2.7 KiB
Go
package tunnel
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import (
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"net"
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"time"
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C "github.com/Dreamacro/clash/constant"
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"github.com/gofrs/uuid"
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)
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type tracker interface {
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ID() string
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Close() error
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}
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type trackerInfo struct {
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UUID uuid.UUID `json:"id"`
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Metadata *C.Metadata `json:"metadata"`
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UploadTotal int64 `json:"upload"`
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DownloadTotal int64 `json:"download"`
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Start time.Time `json:"start"`
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Chain C.Chain `json:"chains"`
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Rule string `json:"rule"`
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RulePayload string `json:"rulePayload"`
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}
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type tcpTracker struct {
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C.Conn `json:"-"`
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*trackerInfo
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manager *Manager
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}
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func (tt *tcpTracker) ID() string {
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return tt.UUID.String()
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}
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func (tt *tcpTracker) Read(b []byte) (int, error) {
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n, err := tt.Conn.Read(b)
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download := int64(n)
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tt.manager.Download() <- download
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tt.DownloadTotal += download
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return n, err
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}
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func (tt *tcpTracker) Write(b []byte) (int, error) {
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n, err := tt.Conn.Write(b)
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upload := int64(n)
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tt.manager.Upload() <- upload
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tt.UploadTotal += upload
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return n, err
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}
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func (tt *tcpTracker) Close() error {
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tt.manager.Leave(tt)
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return tt.Conn.Close()
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}
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func newTCPTracker(conn C.Conn, manager *Manager, metadata *C.Metadata, rule C.Rule) *tcpTracker {
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uuid, _ := uuid.NewV4()
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t := &tcpTracker{
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Conn: conn,
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manager: manager,
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trackerInfo: &trackerInfo{
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UUID: uuid,
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Start: time.Now(),
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Metadata: metadata,
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Chain: conn.Chains(),
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Rule: "",
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},
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}
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if rule != nil {
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t.trackerInfo.Rule = rule.RuleType().String()
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t.trackerInfo.RulePayload = rule.Payload()
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}
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manager.Join(t)
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return t
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}
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type udpTracker struct {
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C.PacketConn `json:"-"`
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*trackerInfo
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manager *Manager
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}
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func (ut *udpTracker) ID() string {
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return ut.UUID.String()
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}
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func (ut *udpTracker) ReadFrom(b []byte) (int, net.Addr, error) {
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n, addr, err := ut.PacketConn.ReadFrom(b)
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download := int64(n)
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ut.manager.Download() <- download
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ut.DownloadTotal += download
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return n, addr, err
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}
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func (ut *udpTracker) WriteTo(b []byte, addr net.Addr) (int, error) {
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n, err := ut.PacketConn.WriteTo(b, addr)
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upload := int64(n)
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ut.manager.Upload() <- upload
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ut.UploadTotal += upload
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return n, err
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}
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func (ut *udpTracker) Close() error {
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ut.manager.Leave(ut)
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return ut.PacketConn.Close()
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}
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func newUDPTracker(conn C.PacketConn, manager *Manager, metadata *C.Metadata, rule C.Rule) *udpTracker {
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uuid, _ := uuid.NewV4()
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ut := &udpTracker{
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PacketConn: conn,
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manager: manager,
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trackerInfo: &trackerInfo{
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UUID: uuid,
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Start: time.Now(),
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Metadata: metadata,
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Chain: conn.Chains(),
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Rule: "",
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},
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}
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if rule != nil {
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ut.trackerInfo.Rule = rule.RuleType().String()
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ut.trackerInfo.RulePayload = rule.Payload()
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}
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manager.Join(ut)
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return ut
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}
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