sourcegraph/internal/httpserver/listener.go at main · Siddhant-K-code/sourcegraph · GitHub

39 lines (31 loc) · 784 Bytes

package httpserver

import (

"net"

"github.com/sourcegraph/sourcegraph/internal/env"

)

// NewListener returns a TCP listener accepting connections

// on the given address.

func NewListener(addr string) (_ net.Listener, err error) {

addr, err = SanitizeAddr(addr)

if err != nil {

return nil, err

}

listener, err := net.Listen("tcp", addr)

if err != nil {

return nil, err

}

return listener, err

}

// SanitizeAddr replaces the host in the given address with

// 127.0.0.1 if no host is supplied or if running in insecure

// dev mode.

func SanitizeAddr(addr string) (string, error) {

host, port, err := net.SplitHostPort(addr)

if err != nil {

return "", err

}

if host == "" && env.InsecureDev {

host = "127.0.0.1"

}

return net.JoinHostPort(host, port), nil

}

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