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// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
/**
* Converts the byte array to a UUID string
* @param bytes Used to convert Byte to Hex
*/
export function bytesToUuid(bytes: number[] | Uint8Array): string {
const bits: string[] = [...bytes].map((bit): string => {
const s: string = bit.toString(16);
return bit < 0x10 ? "0" + s : s;
});
return [
...bits.slice(0, 4),
"-",
...bits.slice(4, 6),
"-",
...bits.slice(6, 8),
"-",
...bits.slice(8, 10),
"-",
...bits.slice(10, 16),
].join("");
}
/**
* Converts a string to a byte array by converting the hex value to a number
* @param uuid Value that gets converted
*/
export function uuidToBytes(uuid: string): number[] {
const bytes: number[] = [];
uuid.replace(/[a-fA-F0-9]{2}/g, (hex: string): string => {
bytes.push(parseInt(hex, 16));
return "";
});
return bytes;
}
/**
* Converts a string to a byte array using the char code
* @param str Value that gets converted
*/
export function stringToBytes(str: string): number[] {
str = unescape(encodeURIComponent(str));
const bytes = new Array(str.length);
for (let i = 0; i < str.length; i++) {
bytes[i] = str.charCodeAt(i);
}
return bytes;
}
/**
* Creates a buffer for creating a SHA-1 hash
* @param content Buffer for SHA-1 hash
*/
export function createBuffer(content: number[]): ArrayBuffer {
const arrayBuffer = new ArrayBuffer(content.length);
const uint8Array = new Uint8Array(arrayBuffer);
for (let i = 0; i < content.length; i++) {
uint8Array[i] = content[i];
}
return arrayBuffer;
}
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