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https://github.com/openziti/zrok.git
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tunnelFrontend elaboration (#170)
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@@ -3,6 +3,7 @@ package tunnelFrontend
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import (
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"github.com/openziti/sdk-golang/ziti"
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"github.com/openziti/sdk-golang/ziti/config"
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"github.com/openziti/sdk-golang/ziti/edge"
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"github.com/openziti/transport/v2"
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"github.com/openziti/zrok/model"
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"github.com/openziti/zrok/zrokdir"
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@@ -62,16 +63,49 @@ func (f *Frontend) Stop() {
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}
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func (f *Frontend) accept(conn transport.Conn) {
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if zConn, err := f.zCtx.Dial(f.cfg.ShrToken); err == nil {
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go f.rxer(conn, zConn)
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go f.txer(conn, zConn)
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logrus.Infof("accepted '%v' <=> '%v'", conn.RemoteAddr(), zConn.RemoteAddr())
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} else {
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logrus.Errorf("error dialing '%v': %v", f.cfg.ShrToken, err)
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_ = conn.Close()
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}
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}
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func (f *Frontend) rxer(conn transport.Conn, zConn edge.Conn) {
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buf := make([]byte, 10240)
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for {
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n, err := conn.Read(buf)
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if err != nil {
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logrus.Errorf("error reading: %v", err)
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if rxsz, err := conn.Read(buf); err == nil {
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if txsz, err := zConn.Write(buf[:rxsz]); err == nil {
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if txsz != rxsz {
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logrus.Errorf("short write '%v' (%d != %d)", zConn.RemoteAddr(), txsz, rxsz)
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}
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} else {
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logrus.Errorf("error writing '%v': %v", zConn.RemoteAddr(), err)
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return
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}
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} else {
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logrus.Errorf("read error '%v': %v", zConn.RemoteAddr(), err)
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return
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}
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n, err = conn.Write(buf[:n])
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if err != nil {
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logrus.Errorf("error writing: %v", err)
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}
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}
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func (f *Frontend) txer(conn transport.Conn, zConn edge.Conn) {
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buf := make([]byte, 10240)
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for {
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if rxsz, err := zConn.Read(buf); err == nil {
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if txsz, err := conn.Write(buf[:rxsz]); err == nil {
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if txsz != rxsz {
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logrus.Errorf("short write '%v' (%d != %d)'", conn.RemoteAddr(), txsz, rxsz)
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}
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} else {
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logrus.Errorf("error writing '%v': %v", conn.RemoteAddr(), err)
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return
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}
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} else {
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logrus.Errorf("read error '%v': %v", conn.RemoteAddr(), err)
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return
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}
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}
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