diff options
Diffstat (limited to 'web/assets/js/util')
| -rw-r--r-- | web/assets/js/util/index.js | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/web/assets/js/util/index.js b/web/assets/js/util/index.js index a13006d4..0d869af6 100644 --- a/web/assets/js/util/index.js +++ b/web/assets/js/util/index.js @@ -145,6 +145,33 @@ class RandomUtil { return Base64.alternativeEncode(String.fromCharCode(...array)); } + + static randomBase32String(length = 16) { + const array = new Uint8Array(length); + + window.crypto.getRandomValues(array); + + const base32Chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567'; + let result = ''; + let bits = 0; + let buffer = 0; + + for (let i = 0; i < array.length; i++) { + buffer = (buffer << 8) | array[i]; + bits += 8; + + while (bits >= 5) { + bits -= 5; + result += base32Chars[(buffer >>> bits) & 0x1F]; + } + } + + if (bits > 0) { + result += base32Chars[(buffer << (5 - bits)) & 0x1F]; + } + + return result; + } } class ObjectUtil { |
