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55 lines
1.0 KiB
55 lines
1.0 KiB
package ssh
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import (
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"context"
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"net"
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"time"
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)
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type serverConn struct {
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net.Conn
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idleTimeout time.Duration
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maxDeadline time.Time
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closeCanceler context.CancelFunc
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}
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func (c *serverConn) Write(p []byte) (n int, err error) {
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c.updateDeadline()
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n, err = c.Conn.Write(p)
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if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
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c.closeCanceler()
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}
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return
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}
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func (c *serverConn) Read(b []byte) (n int, err error) {
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c.updateDeadline()
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n, err = c.Conn.Read(b)
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if _, isNetErr := err.(net.Error); isNetErr && c.closeCanceler != nil {
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c.closeCanceler()
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}
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return
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}
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func (c *serverConn) Close() (err error) {
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err = c.Conn.Close()
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if c.closeCanceler != nil {
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c.closeCanceler()
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}
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return
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}
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func (c *serverConn) updateDeadline() {
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switch {
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case c.idleTimeout > 0:
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idleDeadline := time.Now().Add(c.idleTimeout)
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if idleDeadline.Unix() < c.maxDeadline.Unix() || c.maxDeadline.IsZero() {
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c.Conn.SetDeadline(idleDeadline)
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return
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}
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fallthrough
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default:
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c.Conn.SetDeadline(c.maxDeadline)
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}
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}
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