node-hitomi/distribution/browser/platform/browser.js

Hitomi.la API for Node.js

import { HitomiError } from '../structures/error.js';
import { DEFAULT_HEADERS } from '../internal/constants.js';

function createContext(host, path, type, range) {
	return {
		host: host,
		path: path,
		type: type,
		options: {
			headers: Object.assign(range ? {
				range: 'bytes=' + range
			} : {}, DEFAULT_HEADERS),
			referrerPolicy: 'same-origin'
		}
	};
}
async function request(host, path, type, range) {
	let context = createContext(host, path, type, range);
	context = await this.onRequest(context) || context;
	const response = await fetch('https://' + context.host + context.path, context.options);
	switch(response.status) {
		case 200:
		case 206: {
			switch(type) {
				case 0: {
					return new Uint8Array(await response.arrayBuffer());
				}
				case 1: {
					return new DataView(await response.arrayBuffer());
				}
				case 2: {
					return response.text();
				}
				case 3: {
					return response.json();
				}
			}
		}
		default: {
			throw HitomiError.unexpectedResponseStatus(context.host, context.path, response.status);
		}
	}
}
const encoder = new TextEncoder();
async function hashTerm(text) {
	return new Uint8Array(await crypto.subtle.digest('sha256', encoder.encode(text)), 0, 4);
}
const decoder = new TextDecoder();
function toString(buffer) {
	return decoder.decode(buffer);
}

export { createContext, hashTerm, request, toString };