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https://github.com/superseriousbusiness/gotosocial.git
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98263a7de6
* start fixing up tests * fix up tests + automate with drone * fiddle with linting * messing about with drone.yml * some more fiddling * hmmm * add cache * add vendor directory * verbose * ci updates * update some little things * update sig
95 lines
2.3 KiB
Go
95 lines
2.3 KiB
Go
package passwordvalidator
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const (
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seqNums = "0123456789"
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seqKeyboard0 = "qwertyuiop"
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seqKeyboard1 = "asdfghjkl"
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seqKeyboard2 = "zxcvbnm"
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seqAlphabet = "abcdefghijklmnopqrstuvwxyz"
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)
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func removeMoreThanTwoFromSequence(s, seq string) string {
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seqRunes := []rune(seq)
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runes := []rune(s)
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matches := 0
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for i := 0; i < len(runes); i++ {
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for j := 0; j < len(seqRunes); j++ {
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if i >= len(runes) {
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break
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}
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r := runes[i]
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r2 := seqRunes[j]
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if r != r2 {
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matches = 0
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continue
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}
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// found a match, advance the counter
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matches++
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if matches > 2 {
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runes = deleteRuneAt(runes, i)
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} else {
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i++
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}
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}
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}
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return string(runes)
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}
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func deleteRuneAt(runes []rune, i int) []rune {
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if i >= len(runes) ||
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i < 0 {
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return runes
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}
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copy(runes[i:], runes[i+1:])
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runes[len(runes)-1] = 0
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runes = runes[:len(runes)-1]
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return runes
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}
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func getReversedString(s string) string {
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n := 0
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rune := make([]rune, len(s))
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for _, r := range s {
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rune[n] = r
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n++
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}
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rune = rune[0:n]
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// Reverse
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for i := 0; i < n/2; i++ {
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rune[i], rune[n-1-i] = rune[n-1-i], rune[i]
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}
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// Convert back to UTF-8.
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return string(rune)
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}
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func removeMoreThanTwoRepeatingChars(s string) string {
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var prevPrev rune
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var prev rune
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runes := []rune(s)
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for i := 0; i < len(runes); i++ {
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r := runes[i]
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if r == prev && r == prevPrev {
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runes = deleteRuneAt(runes, i)
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i--
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}
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prevPrev = prev
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prev = r
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}
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return string(runes)
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}
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func getLength(password string) int {
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password = removeMoreThanTwoRepeatingChars(password)
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password = removeMoreThanTwoFromSequence(password, seqNums)
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password = removeMoreThanTwoFromSequence(password, seqKeyboard0)
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password = removeMoreThanTwoFromSequence(password, seqKeyboard1)
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password = removeMoreThanTwoFromSequence(password, seqKeyboard2)
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password = removeMoreThanTwoFromSequence(password, seqAlphabet)
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password = removeMoreThanTwoFromSequence(password, getReversedString(seqNums))
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password = removeMoreThanTwoFromSequence(password, getReversedString(seqKeyboard0))
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password = removeMoreThanTwoFromSequence(password, getReversedString(seqKeyboard1))
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password = removeMoreThanTwoFromSequence(password, getReversedString(seqKeyboard2))
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password = removeMoreThanTwoFromSequence(password, getReversedString(seqAlphabet))
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return len(password)
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}
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