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pkg/rnd/token.go
44 строки
1 KB
Michael Mayer
Pkg: Harden random token generation in the "rnd" package
07 авг 2026, 18:12
07 авг 2026, 18:12
0321aa6
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package rnd import ( "github.com/photoprism/photoprism/pkg/checksum" ) // CharsetBase10 contains digits 0-9. const CharsetBase10 = checksum.CharsetBase10 // CharsetBase36 contains lowercase letters and digits. const CharsetBase36 = checksum.CharsetBase36 // CharsetBase62 contains upper/lowercase letters and digits. const CharsetBase62 = checksum.CharsetBase62 // Base10 generates a random token containing numbers only. func Base10(length int) string { return Charset(length, CharsetBase10) } // Base36 generates a random token containing lowercase letters and numbers. func Base36(length int) string { return Charset(length, CharsetBase36) } // Base62 generates a random token containing upper and lower case letters as well as numbers. func Base62(length int) string { return Charset(length, CharsetBase62) } // Charset generates a random token with the specified length and charset. // It returns an empty string for a non-positive length or an unusable charset. func Charset(length int, charset string) string { if length < 1 || len(charset) < 1 || len(charset) > maxCharsetLen { return "" } else if length > 4096 { length = 4096 } b := make([]byte, length) randomChars(b, charset) return string(b) }