github.com/verovm/record-replay@v1.9.7/signer/core/validation.go (about)

     1  // Copyright 2018 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package core
    18  
    19  import (
    20  	"errors"
    21  	"regexp"
    22  )
    23  
    24  var printable7BitAscii = regexp.MustCompile("^[A-Za-z0-9!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ ]+$")
    25  
    26  // ValidatePasswordFormat returns an error if the password is too short, or consists of characters
    27  // outside the range of the printable 7bit ascii set
    28  func ValidatePasswordFormat(password string) error {
    29  	if len(password) < 10 {
    30  		return errors.New("password too short (<10 characters)")
    31  	}
    32  	if !printable7BitAscii.MatchString(password) {
    33  		return errors.New("password contains invalid characters - only 7bit printable ascii allowed")
    34  	}
    35  	return nil
    36  }