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df22736d80
doc: update ESM hook examples esm: fix unsafe primordial doc: fix ESM example linting esm: allow source of type ArrayBuffer doc: update ESM hook changelog to include resolve format esm: allow all ArrayBuffers and TypedArrays for load hook source doc: tidy code & API docs doc: convert ESM source table header from Title Case to Sentence case doc: add detailed explanation for getPackageType esm: add caveat that ESMLoader::import() must NOT be renamed esm: tidy code declaration of getFormat protocolHandlers doc: correct ESM doc link (bad conflict resolution) doc: update ESM hook limitation for CJS esm: tweak preload description doc: update ESM getPackageType() example explanation PR-URL: https://github.com/nodejs/node/pull/37468 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Guy Bedford <guybedford@gmail.com> Reviewed-By: Bradley Farias <bradley.meck@gmail.com> Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com>
46 lines
1.3 KiB
JavaScript
46 lines
1.3 KiB
JavaScript
'use strict';
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const {
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RegExpPrototypeExec,
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decodeURIComponent,
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} = primordials;
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const { getOptionValue } = require('internal/options');
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// Do not eagerly grab .manifest, it may be in TDZ
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const policy = getOptionValue('--experimental-policy') ?
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require('internal/process/policy') :
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null;
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const { Buffer } = require('buffer');
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const fs = require('internal/fs/promises').exports;
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const { URL } = require('internal/url');
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const {
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ERR_INVALID_URL,
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ERR_INVALID_URL_SCHEME,
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} = require('internal/errors').codes;
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const readFileAsync = fs.readFile;
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const DATA_URL_PATTERN = /^[^/]+\/[^,;]+(?:[^,]*?)(;base64)?,([\s\S]*)$/;
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async function defaultGetSource(url, { format } = {}, defaultGetSource) {
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const parsed = new URL(url);
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let source;
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if (parsed.protocol === 'file:') {
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source = await readFileAsync(parsed);
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} else if (parsed.protocol === 'data:') {
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const match = RegExpPrototypeExec(DATA_URL_PATTERN, parsed.pathname);
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if (!match) {
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throw new ERR_INVALID_URL(url);
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}
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const { 1: base64, 2: body } = match;
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source = Buffer.from(decodeURIComponent(body), base64 ? 'base64' : 'utf8');
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} else {
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throw new ERR_INVALID_URL_SCHEME(['file', 'data']);
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}
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if (policy?.manifest) {
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policy.manifest.assertIntegrity(parsed, source);
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}
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return source;
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}
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exports.defaultGetSource = defaultGetSource;
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