BREAKING CHANGE(core): switch to uInt8Extras

This commit is contained in:
Philipp Kunz 2024-04-17 19:09:55 +02:00
parent 30306f3a40
commit 10d7c5d8e8
5 changed files with 26 additions and 62 deletions

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@ -43,5 +43,8 @@
"buffer validation", "buffer validation",
"utility", "utility",
"data processing" "data processing"
] ],
"dependencies": {
"uint8array-extras": "^1.1.0"
}
} }

10
pnpm-lock.yaml generated
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@ -4,6 +4,11 @@ settings:
autoInstallPeers: true autoInstallPeers: true
excludeLinksFromLockfile: false excludeLinksFromLockfile: false
dependencies:
uint8array-extras:
specifier: ^1.1.0
version: 1.1.0
devDependencies: devDependencies:
'@git.zone/tsbuild': '@git.zone/tsbuild':
specifier: ^2.1.25 specifier: ^2.1.25
@ -5359,6 +5364,11 @@ packages:
hasBin: true hasBin: true
dev: true dev: true
/uint8array-extras@1.1.0:
resolution: {integrity: sha512-CVaBSyOmGoFHu+zOVPbetXEXykOd8KHVBHLlqvmaMWpwcq3rewj18xVNbU5uzf48hclnNQhfNaNany2cMHFK/g==}
engines: {node: '>=18'}
dev: false
/unbox-primitive@1.0.2: /unbox-primitive@1.0.2:
resolution: {integrity: sha512-61pPlCD9h51VoreyJ0BReideM3MDKMKnh6+V9L08331ipq6Q8OFXZYiqP6n/tbHx4s5I9uRhcye6BrbkizkBDw==} resolution: {integrity: sha512-61pPlCD9h51VoreyJ0BReideM3MDKMKnh6+V9L08331ipq6Q8OFXZYiqP6n/tbHx4s5I9uRhcye6BrbkizkBDw==}
dependencies: dependencies:

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@ -3,6 +3,6 @@
*/ */
export const commitinfo = { export const commitinfo = {
name: '@push.rocks/smartbuffer', name: '@push.rocks/smartbuffer',
version: '1.0.7', version: '2.0.0',
description: 'handle ArrayBufferLike structures' description: 'A module for handling ArrayBufferLike structures, including conversion and validation utilities.'
} }

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@ -1,65 +1,13 @@
import * as plugins from './smartbuffer.plugins.js'; import * as plugins from './smartbuffer.plugins.js';
export function arrayBufferToBase64(arrayBuffer: ArrayBufferLike | Buffer): string { export const uInt8ArrayExtras = plugins.uInt8ArrayExtras;
var base64 = ''
var encodings = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
var bytes = new Uint8Array(arrayBuffer) export function uInt8ArrayToBase64(uInt8Array: Uint8Array): string {
var byteLength = bytes.byteLength return plugins.uInt8ArrayExtras.uint8ArrayToBase64(uInt8Array);
var byteRemainder = byteLength % 3
var mainLength = byteLength - byteRemainder
var a, b, c, d
var chunk
// Main loop deals with bytes in chunks of 3
for (var i = 0; i < mainLength; i = i + 3) {
// Combine the three bytes into a single integer
chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2]
// Use bitmasks to extract 6-bit segments from the triplet
a = (chunk & 16515072) >> 18 // 16515072 = (2^6 - 1) << 18
b = (chunk & 258048) >> 12 // 258048 = (2^6 - 1) << 12
c = (chunk & 4032) >> 6 // 4032 = (2^6 - 1) << 6
d = chunk & 63 // 63 = 2^6 - 1
// Convert the raw binary segments to the appropriate ASCII encoding
base64 += encodings[a] + encodings[b] + encodings[c] + encodings[d]
} }
// Deal with the remaining bytes and padding export function base64ToUint8Array(base64: string): Uint8Array {
if (byteRemainder == 1) { return plugins.uInt8ArrayExtras.base64ToUint8Array(base64);
chunk = bytes[mainLength]
a = (chunk & 252) >> 2 // 252 = (2^6 - 1) << 2
// Set the 4 least significant bits to zero
b = (chunk & 3) << 4 // 3 = 2^2 - 1
base64 += encodings[a] + encodings[b] + '=='
} else if (byteRemainder == 2) {
chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1]
a = (chunk & 64512) >> 10 // 64512 = (2^6 - 1) << 10
b = (chunk & 1008) >> 4 // 1008 = (2^6 - 1) << 4
// Set the 2 least significant bits to zero
c = (chunk & 15) << 2 // 15 = 2^4 - 1
base64 += encodings[a] + encodings[b] + encodings[c] + '='
}
return base64
}
export function base64ToArrayBuffer(base64: string): Uint8Array {
const binaryString = window.atob(base64);
const arrayLength = binaryString.length;
const arrayBuffer = new Uint8Array( arrayLength );
for (var i = 0; i < arrayLength; i++) {
arrayBuffer[i] = binaryString.charCodeAt(i);
}
return arrayBuffer;
} }
export function isBufferLike(obj: any): obj is ArrayBufferLike | Buffer { export function isBufferLike(obj: any): obj is ArrayBufferLike | Buffer {

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@ -1,2 +1,5 @@
const removeme = {}; import * as uInt8ArrayExtras from 'uint8array-extras';
export { removeme };
export {
uInt8ArrayExtras,
}