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