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path: root/echo/nginx_log_compat.go
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package echo

import (
	"io"
	"os"

	"github.com/labstack/echo/v4/middleware"
)

const (
	nginxCombinedHostFormat = `${host} ${remote_ip} - - [${time_custom}] "${method} ${uri} ` +
		`${protocol}" ${status} ${bytes_out} "${referer}" "${user_agent}"` + "\n"
	nginxCombinedHostDateFormat = "02/Jan/2006:15:04:04 -0700"
)

func NginxCombinedHostConfig(o io.Writer) middleware.LoggerConfig {
	return middleware.LoggerConfig{
		Format:           nginxCombinedHostFormat,
		CustomTimeFormat: nginxCombinedHostDateFormat,
		Output:           o,
	}
}

// TODO: Implement HUP as re-open (like: https://github.com/client9/reopen/blob/master/reopen.go)
func NginxCombinedHostConfigToFile(f string) (middleware.LoggerConfig, error) {
	o, err := os.OpenFile(f, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0666)
	if err != nil {
		return middleware.LoggerConfig{}, err
	}
	return NginxCombinedHostConfig(o), nil
}