mirror of
https://github.com/zhigang1992/react-native-firebase.git
synced 2026-04-10 22:48:09 +08:00
f429699990
- [android] upgrade to Android X - [android] upgrade gradle wrapper to v5.4.1 - [android][ios][tests] remove manual packages & enable auto-linking - [tests][internal] upgrade tests project to RN 60 - [ios] temporarily remove framework support in pods - broken in RN 60 - see https://github.com/facebook/react-native/issues/25349 - [linting] switch to use rn community linting rules
120 lines
2.8 KiB
JavaScript
120 lines
2.8 KiB
JavaScript
/* eslint-disable no-bitwise */
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/*
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* Copyright (c) 2016-present Invertase Limited & Contributors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this library except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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import binaryToBase64 from 'react-native/Libraries/Utilities/binaryToBase64';
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import { promiseDefer } from './promise';
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const CHARS = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
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/**
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* window.btoa
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*/
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function btoa(input): string {
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let map;
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let i = 0;
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let block = 0;
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let output = '';
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for (
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block = 0, i = 0, map = CHARS;
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input.charAt(i | 0) || ((map = '='), i % 1);
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output += map.charAt(63 & (block >> (8 - (i % 1) * 8)))
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) {
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const charCode = input.charCodeAt((i += 3 / 4));
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if (charCode > 0xff) {
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throw new Error(
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"'RNFirebase.Base64.btoa' failed: The string to be encoded contains characters outside of the Latin1 range.",
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);
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}
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block = (block << 8) | charCode;
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}
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return output;
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}
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/**
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* window.atob
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*/
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function atob(input): string {
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let i = 0;
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let bc = 0;
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let bs = 0;
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let buffer;
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let output = '';
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const str = input.replace(/[=]+$/, '');
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if (str.length % 4 === 1) {
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throw new Error(
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"'RNFirebase.Base64.atob' failed: The string to be decoded is not correctly encoded.",
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);
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}
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for (
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bc = 0, bs = 0, i = 0;
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(buffer = str.charAt(i++));
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~buffer && ((bs = bc % 4 ? bs * 64 + buffer : buffer), bc++ % 4)
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? (output += String.fromCharCode(255 & (bs >> ((-2 * bc) & 6))))
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: 0
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) {
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buffer = CHARS.indexOf(buffer);
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}
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return output;
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}
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/**
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* Converts a Blob, ArrayBuffer or Uint8Array to a base64 string.
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*/
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function fromData(data) {
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if (data instanceof Blob) {
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const fileReader = new FileReader();
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const { resolve, reject, promise } = promiseDefer();
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fileReader.readAsDataURL(data);
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fileReader.onloadend = function onloadend() {
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resolve({ string: fileReader.result, format: 'data_url' });
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};
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fileReader.onerror = function onerror(event) {
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fileReader.abort();
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reject(event);
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};
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return promise;
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}
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if (data instanceof ArrayBuffer || data instanceof Uint8Array) {
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return Promise.resolve({
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string: binaryToBase64(data),
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format: 'base64',
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});
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}
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throw new Error("'RNFirebase.Base64.fromData' failed: Unknown data type.");
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}
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export default {
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btoa,
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atob,
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fromData,
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};
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