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365b575341* [feature] add TOTP two-factor authentication (2FA) * use byteutil.S2B to avoid allocations when comparing + generating password hashes * don't bother with string conversion for consts * use io.ReadFull * use MustGenerateSecret for backup codes * rename util functions
19 lines
458 B
Go
19 lines
458 B
Go
package utils
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// RuneToInt converts a rune between '0' and '9' to an integer between 0 and 9
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// If the rune is outside of this range -1 is returned.
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func RuneToInt(r rune) int {
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if r >= '0' && r <= '9' {
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return int(r - '0')
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}
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return -1
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}
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// IntToRune converts a digit 0 - 9 to the rune '0' - '9'. If the given int is outside
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// of this range 'F' is returned!
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func IntToRune(i int) rune {
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if i >= 0 && i <= 9 {
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return rune(i + '0')
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}
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return 'F'
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}
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