Peter Kurfer
49e58ac2e4
- move to Gitlab - make code better testable - create app abstraction for server - cleanup
59 lines
853 B
Go
59 lines
853 B
Go
package tls_interceptor
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import (
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"net"
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"sync"
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)
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var (
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bufferPool = sync.Pool{
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New: func() interface{} {
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return make([]byte, 1024)
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},
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}
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)
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func chanFromConn(conn net.Conn) chan []byte {
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c := make(chan []byte)
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go func() {
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b := bufferPool.Get().([]byte)
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for {
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n, err := conn.Read(b)
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if n > 0 {
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res := bufferPool.Get().([]byte)
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// Copy the buffer so it doesn't get changed while read by the recipient.
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copy(res, b[:n])
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c <- res[:n]
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}
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if err != nil {
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c <- nil
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break
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}
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}
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}()
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return c
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}
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func Pipe(conn1 net.Conn, conn2 net.Conn) {
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chan1 := chanFromConn(conn1)
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chan2 := chanFromConn(conn2)
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for {
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select {
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case b1 := <-chan1:
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if b1 == nil {
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return
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} else {
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conn2.Write(b1)
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}
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case b2 := <-chan2:
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if b2 == nil {
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return
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} else {
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conn1.Write(b2)
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}
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}
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}
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}
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