forked from TrueCloudLab/rclone
42 lines
746 B
Go
42 lines
746 B
Go
package examples
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import (
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"github.com/tsenart/tb"
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"io"
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"log"
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"net"
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"time"
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)
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func main() {
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ln, err := net.Listen("tcp", ":6789")
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if err != nil {
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log.Fatal(err)
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}
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th := tb.NewThrottler(100 * time.Millisecond)
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echo := func(conn net.Conn) {
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defer conn.Close()
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host, port, err := net.SplitHostPort(conn.RemoteAddr().String())
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if err != nil {
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panic(err)
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}
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// Throttle to 10 connection per second from the same host
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// Handle non-conformity by dropping the connection
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if th.Halt(host, 1, 10) {
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log.Printf("Throttled %s", host)
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return
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}
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log.Printf("Echoing payload from %s:%s", host, port)
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io.Copy(conn, conn)
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}
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for {
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conn, err := ln.Accept()
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if err != nil {
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log.Fatal(err)
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}
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go echo(conn)
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}
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}
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