mirror of
https://github.com/denoland/deno.git
synced 2024-11-26 16:09:27 -05:00
858 lines
23 KiB
JavaScript
858 lines
23 KiB
JavaScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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((window) => {
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const { build } = window.__bootstrap.build;
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const { getRandomValues } = window.__bootstrap.crypto;
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const { customInspect } = window.__bootstrap.console;
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const { sendSync } = window.__bootstrap.dispatchJson;
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const { isIterable, requiredArguments } = window.__bootstrap.webUtil;
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/** https://url.spec.whatwg.org/#idna */
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function domainToAscii(
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domain,
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{ beStrict = false } = {},
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) {
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return sendSync("op_domain_to_ascii", { domain, beStrict });
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}
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const urls = new WeakMap();
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class URLSearchParams {
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#params = [];
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constructor(init = "") {
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if (typeof init === "string") {
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this.#handleStringInitialization(init);
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return;
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}
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if (Array.isArray(init) || isIterable(init)) {
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this.#handleArrayInitialization(init);
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return;
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}
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if (Object(init) !== init) {
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return;
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}
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if (init instanceof URLSearchParams) {
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this.#params = [...init.#params];
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return;
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}
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// Overload: record<USVString, USVString>
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for (const key of Object.keys(init)) {
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this.#append(key, init[key]);
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}
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urls.set(this, null);
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}
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#handleStringInitialization = (init) => {
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// Overload: USVString
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// If init is a string and starts with U+003F (?),
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// remove the first code point from init.
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if (init.charCodeAt(0) === 0x003f) {
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init = init.slice(1);
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}
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for (const pair of init.split("&")) {
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// Empty params are ignored
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if (pair.length === 0) {
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continue;
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}
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const position = pair.indexOf("=");
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const name = pair.slice(0, position === -1 ? pair.length : position);
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const value = pair.slice(name.length + 1);
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this.#append(decodeURIComponent(name), decodeURIComponent(value));
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}
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};
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#handleArrayInitialization = (
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init,
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) => {
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// Overload: sequence<sequence<USVString>>
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for (const tuple of init) {
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// If pair does not contain exactly two items, then throw a TypeError.
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if (tuple.length !== 2) {
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throw new TypeError(
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"URLSearchParams.constructor tuple array argument must only contain pair elements",
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);
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}
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this.#append(tuple[0], tuple[1]);
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}
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};
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#updateSteps = () => {
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const url = urls.get(this);
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if (url == null) {
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return;
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}
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parts.get(url).query = this.toString();
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};
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#append = (name, value) => {
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this.#params.push([String(name), String(value)]);
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};
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append(name, value) {
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requiredArguments("URLSearchParams.append", arguments.length, 2);
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this.#append(name, value);
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this.#updateSteps();
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}
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delete(name) {
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requiredArguments("URLSearchParams.delete", arguments.length, 1);
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name = String(name);
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let i = 0;
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while (i < this.#params.length) {
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if (this.#params[i][0] === name) {
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this.#params.splice(i, 1);
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} else {
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i++;
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}
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}
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this.#updateSteps();
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}
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getAll(name) {
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requiredArguments("URLSearchParams.getAll", arguments.length, 1);
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name = String(name);
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const values = [];
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for (const entry of this.#params) {
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if (entry[0] === name) {
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values.push(entry[1]);
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}
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}
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return values;
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}
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get(name) {
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requiredArguments("URLSearchParams.get", arguments.length, 1);
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name = String(name);
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for (const entry of this.#params) {
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if (entry[0] === name) {
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return entry[1];
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}
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}
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return null;
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}
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has(name) {
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requiredArguments("URLSearchParams.has", arguments.length, 1);
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name = String(name);
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return this.#params.some((entry) => entry[0] === name);
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}
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set(name, value) {
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requiredArguments("URLSearchParams.set", arguments.length, 2);
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// If there are any name-value pairs whose name is name, in list,
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// set the value of the first such name-value pair to value
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// and remove the others.
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name = String(name);
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value = String(value);
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let found = false;
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let i = 0;
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while (i < this.#params.length) {
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if (this.#params[i][0] === name) {
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if (!found) {
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this.#params[i][1] = value;
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found = true;
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i++;
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} else {
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this.#params.splice(i, 1);
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}
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} else {
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i++;
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}
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}
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// Otherwise, append a new name-value pair whose name is name
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// and value is value, to list.
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if (!found) {
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this.#append(name, value);
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}
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this.#updateSteps();
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}
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sort() {
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this.#params.sort((a, b) => (a[0] === b[0] ? 0 : a[0] > b[0] ? 1 : -1));
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this.#updateSteps();
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}
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forEach(
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callbackfn,
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thisArg,
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) {
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requiredArguments("URLSearchParams.forEach", arguments.length, 1);
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if (typeof thisArg !== "undefined") {
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callbackfn = callbackfn.bind(thisArg);
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}
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for (const [key, value] of this.#params) {
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callbackfn(value, key, this);
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}
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}
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*keys() {
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for (const [key] of this.#params) {
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yield key;
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}
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}
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*values() {
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for (const [, value] of this.#params) {
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yield value;
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}
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}
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*entries() {
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yield* this.#params;
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}
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*[Symbol.iterator]() {
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yield* this.#params;
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}
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toString() {
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return this.#params
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.map(
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(tuple) =>
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`${encodeURIComponent(tuple[0])}=${encodeURIComponent(tuple[1])}`,
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)
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.join("&");
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}
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}
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const searchParamsMethods = [
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"append",
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"delete",
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"set",
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];
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const specialSchemes = ["ftp", "file", "http", "https", "ws", "wss"];
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// https://url.spec.whatwg.org/#special-scheme
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const schemePorts = {
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ftp: "21",
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file: "",
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http: "80",
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https: "443",
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ws: "80",
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wss: "443",
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};
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const MAX_PORT = 2 ** 16 - 1;
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// Remove the part of the string that matches the pattern and return the
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// remainder (RHS) as well as the first captured group of the matched substring
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// (LHS). e.g.
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// takePattern("https://deno.land:80", /^([a-z]+):[/]{2}/)
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// = ["http", "deno.land:80"]
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// takePattern("deno.land:80", /^(\[[0-9a-fA-F.:]{2,}\]|[^:]+)/)
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// = ["deno.land", "80"]
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function takePattern(string, pattern) {
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let capture = "";
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const rest = string.replace(pattern, (_, capture_) => {
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capture = capture_;
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return "";
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});
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return [capture, rest];
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}
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function parse(url, isBase = true) {
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const parts = {};
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let restUrl;
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[parts.protocol, restUrl] = takePattern(url.trim(), /^([a-z]+):/);
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if (isBase && parts.protocol == "") {
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return undefined;
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}
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const isSpecial = specialSchemes.includes(parts.protocol);
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if (parts.protocol == "file") {
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parts.slashes = "//";
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parts.username = "";
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parts.password = "";
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[parts.hostname, restUrl] = takePattern(restUrl, /^[/\\]{2}([^/\\?#]*)/);
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parts.port = "";
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if (build.os == "windows" && parts.hostname == "") {
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// UNC paths. e.g. "\\\\localhost\\foo\\bar" on Windows should be
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// representable as `new URL("file:////localhost/foo/bar")` which is
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// equivalent to: `new URL("file://localhost/foo/bar")`.
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[parts.hostname, restUrl] = takePattern(
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restUrl,
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/^[/\\]{2,}([^/\\?#]*)/,
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);
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}
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} else {
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let restAuthority;
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if (isSpecial) {
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parts.slashes = "//";
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[restAuthority, restUrl] = takePattern(
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restUrl,
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/^[/\\]{2,}([^/\\?#]*)/,
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);
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} else {
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parts.slashes = restUrl.match(/^[/\\]{2}/) ? "//" : "";
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[restAuthority, restUrl] = takePattern(restUrl, /^[/\\]{2}([^/\\?#]*)/);
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}
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let restAuthentication;
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[restAuthentication, restAuthority] = takePattern(
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restAuthority,
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/^(.*)@/,
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);
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[parts.username, restAuthentication] = takePattern(
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restAuthentication,
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/^([^:]*)/,
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);
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parts.username = encodeUserinfo(parts.username);
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[parts.password] = takePattern(restAuthentication, /^:(.*)/);
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parts.password = encodeUserinfo(parts.password);
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[parts.hostname, restAuthority] = takePattern(
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restAuthority,
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/^(\[[0-9a-fA-F.:]{2,}\]|[^:]+)/,
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);
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[parts.port] = takePattern(restAuthority, /^:(.*)/);
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if (!isValidPort(parts.port)) {
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return undefined;
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}
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if (parts.hostname == "" && isSpecial && isBase) {
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return undefined;
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}
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}
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try {
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parts.hostname = encodeHostname(parts.hostname, isSpecial);
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} catch {
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return undefined;
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}
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[parts.path, restUrl] = takePattern(restUrl, /^([^?#]*)/);
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parts.path = encodePathname(parts.path.replace(/\\/g, "/"));
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[parts.query, restUrl] = takePattern(restUrl, /^(\?[^#]*)/);
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parts.query = encodeSearch(parts.query);
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[parts.hash] = takePattern(restUrl, /^(#.*)/);
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parts.hash = encodeHash(parts.hash);
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return parts;
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}
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// Based on https://github.com/kelektiv/node-uuid
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// TODO(kevinkassimo): Use deno_std version once possible.
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function generateUUID() {
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return "00000000-0000-4000-8000-000000000000".replace(/[0]/g, () =>
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// random integer from 0 to 15 as a hex digit.
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(getRandomValues(new Uint8Array(1))[0] % 16).toString(16));
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}
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// Keep it outside of URL to avoid any attempts of access.
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const blobURLMap = new Map();
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function isAbsolutePath(path) {
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return path.startsWith("/");
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}
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// Resolves `.`s and `..`s where possible.
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// Preserves repeating and trailing `/`s by design.
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// On Windows, drive letter paths will be given a leading slash, and also a
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// trailing slash if there are no other components e.g. "C:" -> "/C:/".
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function normalizePath(path, isFilePath = false) {
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if (build.os == "windows" && isFilePath) {
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path = path.replace(/^\/*([A-Za-z]:)(\/|$)/, "/$1/");
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}
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const isAbsolute = isAbsolutePath(path);
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path = path.replace(/^\//, "");
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const pathSegments = path.split("/");
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const newPathSegments = [];
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for (let i = 0; i < pathSegments.length; i++) {
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const previous = newPathSegments[newPathSegments.length - 1];
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if (
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pathSegments[i] == ".." &&
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previous != ".." &&
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(previous != undefined || isAbsolute)
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) {
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newPathSegments.pop();
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} else if (pathSegments[i] != ".") {
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newPathSegments.push(pathSegments[i]);
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}
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}
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let newPath = newPathSegments.join("/");
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if (!isAbsolute) {
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if (newPathSegments.length == 0) {
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newPath = ".";
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}
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} else {
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newPath = `/${newPath}`;
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}
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return newPath;
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}
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// Standard URL basing logic, applied to paths.
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function resolvePathFromBase(
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path,
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basePath,
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isFilePath = false,
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) {
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let normalizedPath = normalizePath(path, isFilePath);
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let normalizedBasePath = normalizePath(basePath, isFilePath);
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let driveLetterPrefix = "";
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if (build.os == "windows" && isFilePath) {
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let driveLetter;
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let baseDriveLetter;
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[driveLetter, normalizedPath] = takePattern(
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normalizedPath,
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/^(\/[A-Za-z]:)(?=\/)/,
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);
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[baseDriveLetter, normalizedBasePath] = takePattern(
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normalizedBasePath,
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/^(\/[A-Za-z]:)(?=\/)/,
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);
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driveLetterPrefix = driveLetter || baseDriveLetter;
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}
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if (isAbsolutePath(normalizedPath)) {
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return `${driveLetterPrefix}${normalizedPath}`;
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}
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if (!isAbsolutePath(normalizedBasePath)) {
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throw new TypeError("Base path must be absolute.");
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}
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// Special case.
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if (path == "") {
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return `${driveLetterPrefix}${normalizedBasePath}`;
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}
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// Remove everything after the last `/` in `normalizedBasePath`.
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const prefix = normalizedBasePath.replace(/[^\/]*$/, "");
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// If `normalizedPath` ends with `.` or `..`, add a trailing slash.
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const suffix = normalizedPath.replace(/(?<=(^|\/)(\.|\.\.))$/, "/");
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return `${driveLetterPrefix}${normalizePath(prefix + suffix)}`;
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}
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function isValidPort(value) {
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// https://url.spec.whatwg.org/#port-state
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if (value === "") return true;
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const port = Number(value);
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return Number.isInteger(port) && port >= 0 && port <= MAX_PORT;
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}
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const parts = new WeakMap();
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class URL {
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#searchParams = null;
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[customInspect]() {
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const keys = [
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"href",
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"origin",
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"protocol",
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"username",
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"password",
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"host",
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"hostname",
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"port",
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"pathname",
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"hash",
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"search",
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];
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const objectString = keys
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.map((key) => `${key}: "${this[key] || ""}"`)
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.join(", ");
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return `URL { ${objectString} }`;
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}
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#updateSearchParams = () => {
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const searchParams = new URLSearchParams(this.search);
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for (const methodName of searchParamsMethods) {
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const method = searchParams[methodName];
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searchParams[methodName] = (...args) => {
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method.apply(searchParams, args);
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this.search = searchParams.toString();
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};
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}
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this.#searchParams = searchParams;
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urls.set(searchParams, this);
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};
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get hash() {
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return parts.get(this).hash;
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}
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set hash(value) {
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value = unescape(String(value));
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if (!value) {
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parts.get(this).hash = "";
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} else {
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if (value.charAt(0) !== "#") {
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value = `#${value}`;
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}
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// hashes can contain % and # unescaped
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parts.get(this).hash = encodeHash(value);
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}
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}
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get host() {
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return `${this.hostname}${this.port ? `:${this.port}` : ""}`;
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}
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set host(value) {
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value = String(value);
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const url = new URL(`http://${value}`);
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parts.get(this).hostname = url.hostname;
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parts.get(this).port = url.port;
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}
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get hostname() {
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return parts.get(this).hostname;
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}
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set hostname(value) {
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value = String(value);
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try {
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const isSpecial = specialSchemes.includes(parts.get(this).protocol);
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parts.get(this).hostname = encodeHostname(value, isSpecial);
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} catch {}
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}
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get href() {
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const authentication = this.username || this.password
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? `${this.username}${this.password ? ":" + this.password : ""}@`
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: "";
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const host = this.host;
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const slashes = host ? "//" : parts.get(this).slashes;
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let pathname = this.pathname;
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if (pathname.charAt(0) != "/" && pathname != "" && host != "") {
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pathname = `/${pathname}`;
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}
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return `${this.protocol}${slashes}${authentication}${host}${pathname}${this.search}${this.hash}`;
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}
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set href(value) {
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value = String(value);
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if (value !== this.href) {
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const url = new URL(value);
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parts.set(this, { ...parts.get(url) });
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this.#updateSearchParams();
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}
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}
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get origin() {
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if (this.host) {
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return `${this.protocol}//${this.host}`;
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}
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return "null";
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}
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|
|
get password() {
|
|
return parts.get(this).password;
|
|
}
|
|
|
|
set password(value) {
|
|
value = String(value);
|
|
parts.get(this).password = encodeUserinfo(value);
|
|
}
|
|
|
|
get pathname() {
|
|
let path = parts.get(this).path;
|
|
if (specialSchemes.includes(parts.get(this).protocol)) {
|
|
if (path.charAt(0) != "/") {
|
|
path = `/${path}`;
|
|
}
|
|
}
|
|
return path;
|
|
}
|
|
|
|
set pathname(value) {
|
|
parts.get(this).path = encodePathname(String(value));
|
|
}
|
|
|
|
get port() {
|
|
const port = parts.get(this).port;
|
|
if (schemePorts[parts.get(this).protocol] === port) {
|
|
return "";
|
|
}
|
|
|
|
return port;
|
|
}
|
|
|
|
set port(value) {
|
|
if (!isValidPort(value)) {
|
|
return;
|
|
}
|
|
parts.get(this).port = value.toString();
|
|
}
|
|
|
|
get protocol() {
|
|
return `${parts.get(this).protocol}:`;
|
|
}
|
|
|
|
set protocol(value) {
|
|
value = String(value);
|
|
if (value) {
|
|
if (value.charAt(value.length - 1) === ":") {
|
|
value = value.slice(0, -1);
|
|
}
|
|
parts.get(this).protocol = encodeURIComponent(value);
|
|
}
|
|
}
|
|
|
|
get search() {
|
|
return parts.get(this).query;
|
|
}
|
|
|
|
set search(value) {
|
|
value = String(value);
|
|
const query = value == "" || value.charAt(0) == "?" ? value : `?${value}`;
|
|
parts.get(this).query = encodeSearch(query);
|
|
this.#updateSearchParams();
|
|
}
|
|
|
|
get username() {
|
|
return parts.get(this).username;
|
|
}
|
|
|
|
set username(value) {
|
|
value = String(value);
|
|
parts.get(this).username = encodeUserinfo(value);
|
|
}
|
|
|
|
get searchParams() {
|
|
return this.#searchParams;
|
|
}
|
|
|
|
constructor(url, base) {
|
|
let baseParts;
|
|
if (base) {
|
|
baseParts = typeof base === "string" ? parse(base) : parts.get(base);
|
|
if (baseParts === undefined) {
|
|
throw new TypeError("Invalid base URL.");
|
|
}
|
|
}
|
|
|
|
const urlParts = typeof url === "string"
|
|
? parse(url, !baseParts)
|
|
: parts.get(url);
|
|
if (urlParts == undefined) {
|
|
throw new TypeError("Invalid URL.");
|
|
}
|
|
|
|
if (urlParts.protocol) {
|
|
urlParts.path = normalizePath(
|
|
urlParts.path,
|
|
urlParts.protocol == "file",
|
|
);
|
|
parts.set(this, urlParts);
|
|
} else if (baseParts) {
|
|
parts.set(this, {
|
|
protocol: baseParts.protocol,
|
|
slashes: baseParts.slashes,
|
|
username: baseParts.username,
|
|
password: baseParts.password,
|
|
hostname: baseParts.hostname,
|
|
port: baseParts.port,
|
|
path: resolvePathFromBase(
|
|
urlParts.path,
|
|
baseParts.path || "/",
|
|
baseParts.protocol == "file",
|
|
),
|
|
query: urlParts.query,
|
|
hash: urlParts.hash,
|
|
});
|
|
} else {
|
|
throw new TypeError("Invalid URL.");
|
|
}
|
|
|
|
this.#updateSearchParams();
|
|
}
|
|
|
|
toString() {
|
|
return this.href;
|
|
}
|
|
|
|
toJSON() {
|
|
return this.href;
|
|
}
|
|
|
|
// TODO(kevinkassimo): implement MediaSource version in the future.
|
|
static createObjectURL(blob) {
|
|
const origin = "http://deno-opaque-origin";
|
|
const key = `blob:${origin}/${generateUUID()}`;
|
|
blobURLMap.set(key, blob);
|
|
return key;
|
|
}
|
|
|
|
static revokeObjectURL(url) {
|
|
let urlObject;
|
|
try {
|
|
urlObject = new URL(url);
|
|
} catch {
|
|
throw new TypeError("Provided URL string is not valid");
|
|
}
|
|
if (urlObject.protocol !== "blob:") {
|
|
return;
|
|
}
|
|
// Origin match check seems irrelevant for now, unless we implement
|
|
// persisten storage for per globalThis.location.origin at some point.
|
|
blobURLMap.delete(url);
|
|
}
|
|
}
|
|
|
|
function parseIpv4Number(s) {
|
|
if (s.match(/^(0[Xx])[0-9A-Za-z]+$/)) {
|
|
return Number(s);
|
|
}
|
|
if (s.match(/^[0-9]+$/)) {
|
|
return Number(s.startsWith("0") ? `0o${s}` : s);
|
|
}
|
|
return NaN;
|
|
}
|
|
|
|
function parseIpv4(s) {
|
|
const parts = s.split(".");
|
|
if (parts[parts.length - 1] == "" && parts.length > 1) {
|
|
parts.pop();
|
|
}
|
|
if (parts.includes("") || parts.length > 4) {
|
|
return s;
|
|
}
|
|
const numbers = parts.map(parseIpv4Number);
|
|
if (numbers.includes(NaN)) {
|
|
return s;
|
|
}
|
|
const last = numbers.pop();
|
|
if (last >= 256 ** (4 - numbers.length) || numbers.find((n) => n >= 256)) {
|
|
throw new TypeError("Invalid hostname.");
|
|
}
|
|
const ipv4 = numbers.reduce((sum, n, i) => sum + n * 256 ** (3 - i), last);
|
|
const ipv4Hex = ipv4.toString(16).padStart(8, "0");
|
|
const ipv4HexParts = ipv4Hex.match(/(..)(..)(..)(..)$/).slice(1);
|
|
return ipv4HexParts.map((s) => String(Number(`0x${s}`))).join(".");
|
|
}
|
|
|
|
function charInC0ControlSet(c) {
|
|
return (c >= "\u0000" && c <= "\u001F") || c > "\u007E";
|
|
}
|
|
|
|
function charInSearchSet(c) {
|
|
// deno-fmt-ignore
|
|
return charInC0ControlSet(c) || ["\u0020", "\u0022", "\u0023", "\u0027", "\u003C", "\u003E"].includes(c) || c > "\u007E";
|
|
}
|
|
|
|
function charInFragmentSet(c) {
|
|
// deno-fmt-ignore
|
|
return charInC0ControlSet(c) || ["\u0020", "\u0022", "\u003C", "\u003E", "\u0060"].includes(c);
|
|
}
|
|
|
|
function charInPathSet(c) {
|
|
// deno-fmt-ignore
|
|
return charInFragmentSet(c) || ["\u0023", "\u003F", "\u007B", "\u007D"].includes(c);
|
|
}
|
|
|
|
function charInUserinfoSet(c) {
|
|
// "\u0027" ("'") seemingly isn't in the spec, but matches Chrome and Firefox.
|
|
// deno-fmt-ignore
|
|
return charInPathSet(c) || ["\u0027", "\u002F", "\u003A", "\u003B", "\u003D", "\u0040", "\u005B", "\u005C", "\u005D", "\u005E", "\u007C"].includes(c);
|
|
}
|
|
|
|
function charIsForbiddenInHost(c) {
|
|
// deno-fmt-ignore
|
|
return ["\u0000", "\u0009", "\u000A", "\u000D", "\u0020", "\u0023", "\u0025", "\u002F", "\u003A", "\u003C", "\u003E", "\u003F", "\u0040", "\u005B", "\u005C", "\u005D", "\u005E"].includes(c);
|
|
}
|
|
|
|
const encoder = new TextEncoder();
|
|
|
|
function encodeChar(c) {
|
|
return [...encoder.encode(c)]
|
|
.map((n) => `%${n.toString(16)}`)
|
|
.join("")
|
|
.toUpperCase();
|
|
}
|
|
|
|
function encodeUserinfo(s) {
|
|
return [...s].map((c) => (charInUserinfoSet(c) ? encodeChar(c) : c)).join(
|
|
"",
|
|
);
|
|
}
|
|
|
|
function encodeHostname(s, isSpecial = true) {
|
|
// IPv6 parsing.
|
|
if (s.startsWith("[") && s.endsWith("]")) {
|
|
if (!s.match(/^\[[0-9A-Fa-f.:]{2,}\]$/)) {
|
|
throw new TypeError("Invalid hostname.");
|
|
}
|
|
// IPv6 address compress
|
|
return s.toLowerCase().replace(/\b:?(?:0+:?){2,}/, "::");
|
|
}
|
|
|
|
let result = s;
|
|
|
|
if (!isSpecial) {
|
|
// Check against forbidden host code points except for "%".
|
|
for (const c of result) {
|
|
if (charIsForbiddenInHost(c) && c != "\u0025") {
|
|
throw new TypeError("Invalid hostname.");
|
|
}
|
|
}
|
|
|
|
// Percent-encode C0 control set.
|
|
result = [...result]
|
|
.map((c) => (charInC0ControlSet(c) ? encodeChar(c) : c))
|
|
.join("");
|
|
|
|
return result;
|
|
}
|
|
|
|
// Percent-decode.
|
|
if (result.match(/%(?![0-9A-Fa-f]{2})/) != null) {
|
|
throw new TypeError("Invalid hostname.");
|
|
}
|
|
result = result.replace(
|
|
/%(.{2})/g,
|
|
(_, hex) => String.fromCodePoint(Number(`0x${hex}`)),
|
|
);
|
|
|
|
// IDNA domain to ASCII.
|
|
result = domainToAscii(result);
|
|
|
|
// Check against forbidden host code points.
|
|
for (const c of result) {
|
|
if (charIsForbiddenInHost(c)) {
|
|
throw new TypeError("Invalid hostname.");
|
|
}
|
|
}
|
|
|
|
// IPv4 parsing.
|
|
if (isSpecial) {
|
|
result = parseIpv4(result);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
function encodePathname(s) {
|
|
return [...s].map((c) => (charInPathSet(c) ? encodeChar(c) : c)).join("");
|
|
}
|
|
|
|
function encodeSearch(s) {
|
|
return [...s].map((c) => (charInSearchSet(c) ? encodeChar(c) : c)).join("");
|
|
}
|
|
|
|
function encodeHash(s) {
|
|
return [...s].map((c) => (charInFragmentSet(c) ? encodeChar(c) : c)).join(
|
|
"",
|
|
);
|
|
}
|
|
|
|
window.__bootstrap.url = {
|
|
URL,
|
|
URLSearchParams,
|
|
blobURLMap,
|
|
};
|
|
})(this);
|