Johannes Marbach
05ba27f36b
* Change imports for Node.js compatibility Fixes: #4287 Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org> * Run prettier * Run prettier (again) * Add comment * Update babel.config.cjs --------- Signed-off-by: Johannes Marbach <n0-0ne+github@mailbox.org> Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>
52 lines
1.5 KiB
TypeScript
52 lines
1.5 KiB
TypeScript
/*
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Copyright 2018 New Vector Ltd
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Copyright 2019 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { encodeUnpaddedBase64Url } from "./base64.ts";
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const LOWERCASE = "abcdefghijklmnopqrstuvwxyz";
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const UPPERCASE = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
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const DIGITS = "0123456789";
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export function secureRandomBase64Url(len: number): string {
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const key = new Uint8Array(len);
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globalThis.crypto.getRandomValues(key);
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return encodeUnpaddedBase64Url(key);
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}
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export function randomString(len: number): string {
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return randomStringFrom(len, UPPERCASE + LOWERCASE + DIGITS);
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}
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export function randomLowercaseString(len: number): string {
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return randomStringFrom(len, LOWERCASE);
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}
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export function randomUppercaseString(len: number): string {
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return randomStringFrom(len, UPPERCASE);
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}
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function randomStringFrom(len: number, chars: string): string {
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let ret = "";
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for (let i = 0; i < len; ++i) {
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ret += chars.charAt(Math.floor(Math.random() * chars.length));
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}
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return ret;
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}
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