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refactor: improve base32 normalization function for better readability and performance

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shuaiplus
2026-03-12 02:28:19 +08:00
parent cc522ec40f
commit 51d0e60cf1
1 changed files with 10 additions and 1 deletions
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src/utils/totp.ts
+10 -1
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@@ -3,7 +3,16 @@ const TOTP_DIGITS = 6;
const TOTP_WINDOW = 1; // allow previous/current/next step for small clock drift const TOTP_WINDOW = 1; // allow previous/current/next step for small clock drift
function normalizeBase32(input: string): string { function normalizeBase32(input: string): string {
return input.toUpperCase().replace(/[\s-]/g, '').replace(/=+$/g, ''); const raw = String(input || '').toUpperCase();
let out = '';
for (const char of raw) {
if (char === ' ' || char === '\t' || char === '\n' || char === '\r' || char === '-') continue;
out += char;
}
while (out.endsWith('=')) {
out = out.slice(0, -1);
}
return out;
} }
function base32Decode(input: string): Uint8Array | null { function base32Decode(input: string): Uint8Array | null {