replace_sql_credential.go

main.go

package main

import (
	"fmt"
	"regexp"
	"strings"
)

func main() {
	rg := regexp.MustCompile(`.*:\/\/(\S+):(\S+)@.*`)
	str := "sqlserver://user:password@host.example.com/?database=rootschema"
	found := rg.FindStringSubmatchIndex(str)
	res := str
	for i := 2; i < len(found); i = i + 2 {
		toRepl := string([]byte(str)[found[i]:found[i+1]])
		fmt.Println(toRepl)
		res = strings.Replace(res, toRepl, "xxx", 1)

	}
	fmt.Println(res)
}