1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-17 21:03:01 -05:00
denoland-deno/op_crates/web/11_url.js

899 lines
23 KiB
JavaScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
((window) => {
const core = window.Deno.core;
function requiredArguments(
name,
length,
required,
) {
if (length < required) {
const errMsg = `${name} requires at least ${required} argument${
required === 1 ? "" : "s"
}, but only ${length} present`;
throw new TypeError(errMsg);
}
}
function isIterable(
o,
) {
// checks for null and undefined
if (o == null) {
return false;
}
return (
typeof (o)[Symbol.iterator] === "function"
);
}
/** https://url.spec.whatwg.org/#idna */
function domainToAscii(
domain,
{ beStrict = false } = {},
) {
return core.jsonOpSync("op_domain_to_ascii", { domain, beStrict });
}
function decodeSearchParam(p) {
return decodeURIComponent(p.replace(/\+/g, " "));
}
const urls = new WeakMap();
class URLSearchParams {
#params = [];
constructor(init = "") {
if (typeof init === "string") {
this.#handleStringInitialization(init);
return;
}
if (Array.isArray(init) || isIterable(init)) {
this.#handleArrayInitialization(init);
return;
}
if (Object(init) !== init) {
return;
}
if (init instanceof URLSearchParams) {
this.#params = [...init.#params];
return;
}
// Overload: record<USVString, USVString>
for (const key of Object.keys(init)) {
this.#append(key, init[key]);
}
urls.set(this, null);
}
#handleStringInitialization = (init) => {
// Overload: USVString
// If init is a string and starts with U+003F (?),
// remove the first code point from init.
if (init.charCodeAt(0) === 0x003f) {
init = init.slice(1);
}
for (const pair of init.split("&")) {
// Empty params are ignored
if (pair.length === 0) {
continue;
}
const position = pair.indexOf("=");
const name = pair.slice(0, position === -1 ? pair.length : position);
const value = pair.slice(name.length + 1);
this.#append(decodeSearchParam(name), decodeSearchParam(value));
}
};
#handleArrayInitialization = (
init,
) => {
// Overload: sequence<sequence<USVString>>
for (const tuple of init) {
// If pair does not contain exactly two items, then throw a TypeError.
if (tuple.length !== 2) {
throw new TypeError(
"URLSearchParams.constructor tuple array argument must only contain pair elements",
);
}
this.#append(tuple[0], tuple[1]);
}
};
#updateSteps = () => {
const url = urls.get(this);
if (url == null) {
return;
}
parts.get(url).query = this.toString();
};
#append = (name, value) => {
this.#params.push([String(name), String(value)]);
};
append(name, value) {
requiredArguments("URLSearchParams.append", arguments.length, 2);
this.#append(name, value);
this.#updateSteps();
}
delete(name) {
requiredArguments("URLSearchParams.delete", arguments.length, 1);
name = String(name);
let i = 0;
while (i < this.#params.length) {
if (this.#params[i][0] === name) {
this.#params.splice(i, 1);
} else {
i++;
}
}
this.#updateSteps();
}
getAll(name) {
requiredArguments("URLSearchParams.getAll", arguments.length, 1);
name = String(name);
const values = [];
for (const entry of this.#params) {
if (entry[0] === name) {
values.push(entry[1]);
}
}
return values;
}
get(name) {
requiredArguments("URLSearchParams.get", arguments.length, 1);
name = String(name);
for (const entry of this.#params) {
if (entry[0] === name) {
return entry[1];
}
}
return null;
}
has(name) {
requiredArguments("URLSearchParams.has", arguments.length, 1);
name = String(name);
return this.#params.some((entry) => entry[0] === name);
}
set(name, value) {
requiredArguments("URLSearchParams.set", arguments.length, 2);
// If there are any name-value pairs whose name is name, in list,
// set the value of the first such name-value pair to value
// and remove the others.
name = String(name);
value = String(value);
let found = false;
let i = 0;
while (i < this.#params.length) {
if (this.#params[i][0] === name) {
if (!found) {
this.#params[i][1] = value;
found = true;
i++;
} else {
this.#params.splice(i, 1);
}
} else {
i++;
}
}
// Otherwise, append a new name-value pair whose name is name
// and value is value, to list.
if (!found) {
this.#append(name, value);
}
this.#updateSteps();
}
sort() {
this.#params.sort((a, b) => (a[0] === b[0] ? 0 : a[0] > b[0] ? 1 : -1));
this.#updateSteps();
}
forEach(
callbackfn,
thisArg,
) {
requiredArguments("URLSearchParams.forEach", arguments.length, 1);
if (typeof thisArg !== "undefined") {
callbackfn = callbackfn.bind(thisArg);
}
for (const [key, value] of this.#params) {
callbackfn(value, key, this);
}
}
*keys() {
for (const [key] of this.#params) {
yield key;
}
}
*values() {
for (const [, value] of this.#params) {
yield value;
}
}
*entries() {
yield* this.#params;
}
*[Symbol.iterator]() {
yield* this.#params;
}
toString() {
return this.#params
.map(
(tuple) =>
`${encodeSearchParam(tuple[0])}=${encodeSearchParam(tuple[1])}`,
)
.join("&");
}
}
const searchParamsMethods = [
"append",
"delete",
"set",
];
const specialSchemes = ["ftp", "file", "http", "https", "ws", "wss"];
// https://url.spec.whatwg.org/#special-scheme
const schemePorts = {
ftp: "21",
file: "",
http: "80",
https: "443",
ws: "80",
wss: "443",
};
const MAX_PORT = 2 ** 16 - 1;
// Remove the part of the string that matches the pattern and return the
// remainder (RHS) as well as the first captured group of the matched substring
// (LHS). e.g.
// takePattern("https://deno.land:80", /^([a-z]+):[/]{2}/)
// = ["http", "deno.land:80"]
// takePattern("deno.land:80", /^(\[[0-9a-fA-F.:]{2,}\]|[^:]+)/)
// = ["deno.land", "80"]
function takePattern(string, pattern) {
let capture = "";
const rest = string.replace(pattern, (_, capture_) => {
capture = capture_;
return "";
});
return [capture, rest];
}
function parse(url, baseParts = null) {
const parts = {};
let restUrl;
let usedNonBase = false;
[parts.protocol, restUrl] = takePattern(
url.trim(),
/^([A-Za-z][+-.0-9A-Za-z]*):/,
);
parts.protocol = parts.protocol.toLowerCase();
if (parts.protocol == "") {
if (baseParts == null) {
return null;
}
parts.protocol = baseParts.protocol;
} else if (
parts.protocol != baseParts?.protocol ||
!specialSchemes.includes(parts.protocol)
) {
usedNonBase = true;
}
const isSpecial = specialSchemes.includes(parts.protocol);
if (parts.protocol == "file") {
parts.slashes = "//";
parts.username = "";
parts.password = "";
if (usedNonBase || restUrl.match(/^[/\\]{2}/)) {
[parts.hostname, restUrl] = takePattern(
restUrl,
/^[/\\]{2}([^/\\?#]*)/,
);
usedNonBase = true;
} else {
parts.hostname = baseParts.hostname;
}
parts.port = "";
} else {
if (usedNonBase || restUrl.match(/^[/\\]{2}/)) {
let restAuthority;
if (isSpecial) {
parts.slashes = "//";
[restAuthority, restUrl] = takePattern(
restUrl,
/^[/\\]*([^/\\?#]*)/,
);
} else {
parts.slashes = restUrl.match(/^[/\\]{2}/) ? "//" : "";
[restAuthority, restUrl] = takePattern(
restUrl,
/^[/\\]{2}([^/\\?#]*)/,
);
}
let restAuthentication;
[restAuthentication, restAuthority] = takePattern(
restAuthority,
/^(.*)@/,
);
[parts.username, restAuthentication] = takePattern(
restAuthentication,
/^([^:]*)/,
);
parts.username = encodeUserinfo(parts.username);
[parts.password] = takePattern(restAuthentication, /^:(.*)/);
parts.password = encodeUserinfo(parts.password);
[parts.hostname, restAuthority] = takePattern(
restAuthority,
/^(\[[0-9a-fA-F.:]{2,}\]|[^:]+)/,
);
[parts.port] = takePattern(restAuthority, /^:(.*)/);
if (!isValidPort(parts.port)) {
return null;
}
if (parts.hostname == "" && isSpecial) {
return null;
}
usedNonBase = true;
} else {
parts.slashes = baseParts.slashes;
parts.username = baseParts.username;
parts.password = baseParts.password;
parts.hostname = baseParts.hostname;
parts.port = baseParts.port;
}
}
try {
parts.hostname = encodeHostname(parts.hostname, isSpecial);
} catch {
return null;
}
[parts.path, restUrl] = takePattern(restUrl, /^([^?#]*)/);
parts.path = encodePathname(parts.path);
if (usedNonBase) {
parts.path = normalizePath(parts.path, parts.protocol == "file");
} else {
if (parts.path != "") {
usedNonBase = true;
}
parts.path = resolvePathFromBase(
parts.path,
baseParts.path || "/",
baseParts.protocol == "file",
);
}
// Drop the hostname if a drive letter is parsed.
if (parts.protocol == "file" && parts.path.match(/^\/+[A-Za-z]:(\/|$)/)) {
parts.hostname = "";
}
if (usedNonBase || restUrl.startsWith("?")) {
[parts.query, restUrl] = takePattern(restUrl, /^(\?[^#]*)/);
parts.query = encodeSearch(parts.query, isSpecial);
usedNonBase = true;
} else {
parts.query = baseParts.query;
}
[parts.hash] = takePattern(restUrl, /^(#.*)/);
parts.hash = encodeHash(parts.hash);
return parts;
}
// Resolves `.`s and `..`s where possible.
// Preserves repeating and trailing `/`s by design.
// Assumes drive letter file paths will have a leading slash.
function normalizePath(path, isFilePath) {
const isAbsolute = path.startsWith("/");
path = path.replace(/^\//, "");
const pathSegments = path.split("/");
let driveLetter = null;
if (isFilePath && pathSegments[0].match(/^[A-Za-z]:$/)) {
driveLetter = pathSegments.shift();
}
if (isFilePath && isAbsolute) {
while (pathSegments.length > 1 && pathSegments[0] == "") {
pathSegments.shift();
}
}
let ensureTrailingSlash = false;
const newPathSegments = [];
for (let i = 0; i < pathSegments.length; i++) {
const previous = newPathSegments[newPathSegments.length - 1];
if (
pathSegments[i] == ".." &&
previous != ".." &&
(previous != undefined || isAbsolute)
) {
newPathSegments.pop();
ensureTrailingSlash = true;
} else if (pathSegments[i] == ".") {
ensureTrailingSlash = true;
} else {
newPathSegments.push(pathSegments[i]);
ensureTrailingSlash = false;
}
}
if (driveLetter != null) {
newPathSegments.unshift(driveLetter);
}
if (newPathSegments.length == 0 && !isAbsolute) {
newPathSegments.push(".");
ensureTrailingSlash = false;
}
let newPath = newPathSegments.join("/");
if (isAbsolute) {
newPath = `/${newPath}`;
}
if (ensureTrailingSlash) {
newPath = newPath.replace(/\/*$/, "/");
}
return newPath;
}
// Standard URL basing logic, applied to paths.
function resolvePathFromBase(path, basePath, isFilePath) {
let basePrefix;
let suffix;
const baseDriveLetter = basePath.match(/^\/+[A-Za-z]:(?=\/|$)/)?.[0];
if (isFilePath && path.match(/^\/+[A-Za-z]:(\/|$)/)) {
basePrefix = "";
suffix = path;
} else if (path.startsWith("/")) {
if (isFilePath && baseDriveLetter) {
basePrefix = baseDriveLetter;
suffix = path;
} else {
basePrefix = "";
suffix = path;
}
} else if (path != "") {
basePath = normalizePath(basePath, isFilePath);
path = normalizePath(path, isFilePath);
// Remove everything after the last `/` in `basePath`.
if (baseDriveLetter && isFilePath) {
basePrefix = `${baseDriveLetter}${
basePath.slice(baseDriveLetter.length).replace(/[^\/]*$/, "")
}`;
} else {
basePrefix = basePath.replace(/[^\/]*$/, "");
}
basePrefix = basePrefix.replace(/\/*$/, "/");
// If `normalizedPath` ends with `.` or `..`, add a trailing slash.
suffix = path.replace(/(?<=(^|\/)(\.|\.\.))$/, "/");
} else {
basePrefix = basePath;
suffix = "";
}
return normalizePath(basePrefix + suffix, isFilePath);
}
function isValidPort(value) {
// https://url.spec.whatwg.org/#port-state
if (value === "") return true;
const port = Number(value);
return Number.isInteger(port) && port >= 0 && port <= MAX_PORT;
}
const parts = new WeakMap();
class URL {
#searchParams = null;
[Symbol.for("Deno.customInspect")]() {
const keys = [
"href",
"origin",
"protocol",
"username",
"password",
"host",
"hostname",
"port",
"pathname",
"hash",
"search",
];
const objectString = keys
.map((key) => `${key}: "${this[key] || ""}"`)
.join(", ");
return `URL { ${objectString} }`;
}
#updateSearchParams = () => {
const searchParams = new URLSearchParams(this.search);
for (const methodName of searchParamsMethods) {
const method = searchParams[methodName];
searchParams[methodName] = (...args) => {
method.apply(searchParams, args);
this.search = searchParams.toString();
};
}
this.#searchParams = searchParams;
urls.set(searchParams, this);
};
get hash() {
return parts.get(this).hash;
}
set hash(value) {
value = unescape(String(value));
if (!value) {
parts.get(this).hash = "";
} else {
if (value.charAt(0) !== "#") {
value = `#${value}`;
}
// hashes can contain % and # unescaped
parts.get(this).hash = encodeHash(value);
}
}
get host() {
return `${this.hostname}${this.port ? `:${this.port}` : ""}`;
}
set host(value) {
value = String(value);
const url = new URL(`http://${value}`);
parts.get(this).hostname = url.hostname;
parts.get(this).port = url.port;
}
get hostname() {
return parts.get(this).hostname;
}
set hostname(value) {
value = String(value);
try {
const isSpecial = specialSchemes.includes(parts.get(this).protocol);
parts.get(this).hostname = encodeHostname(value, isSpecial);
} catch {}
}
get href() {
const authentication = this.username || this.password
? `${this.username}${this.password ? ":" + this.password : ""}@`
: "";
const host = this.host;
const slashes = host ? "//" : parts.get(this).slashes;
let pathname = this.pathname;
if (pathname.charAt(0) != "/" && pathname != "" && host != "") {
pathname = `/${pathname}`;
}
return `${this.protocol}${slashes}${authentication}${host}${pathname}${this.search}${this.hash}`;
}
set href(value) {
value = String(value);
if (value !== this.href) {
const url = new URL(value);
parts.set(this, { ...parts.get(url) });
this.#updateSearchParams();
}
}
get origin() {
if (this.host) {
return `${this.protocol}//${this.host}`;
}
return "null";
}
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 : `?${value}`;
const isSpecial = specialSchemes.includes(parts.get(this).protocol);
parts.get(this).query = encodeSearch(query, isSpecial);
this.#updateSearchParams();
}
get username() {
return parts.get(this).username;
}
set username(value) {
value = String(value);
parts.get(this).username = encodeUserinfo(value);
}
get searchParams() {
return this.#searchParams;
}
constructor(url, base) {
let baseParts = null;
new.target;
if (base) {
baseParts = base instanceof URL ? parts.get(base) : parse(base);
if (baseParts == null) {
throw new TypeError("Invalid base URL.");
}
}
const urlParts = url instanceof URL
? parts.get(url)
: parse(url, baseParts);
if (urlParts == null) {
throw new TypeError("Invalid URL.");
}
parts.set(this, urlParts);
this.#updateSearchParams();
}
toString() {
return this.href;
}
toJSON() {
return this.href;
}
static createObjectURL() {
throw new Error("Not implemented");
}
static revokeObjectURL() {
throw new Error("Not implemented");
}
}
function parseIpv4Number(s) {
if (s.match(/^(0[Xx])[0-9A-Za-z]+$/)) {
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, isSpecial) {
// deno-fmt-ignore
return charInC0ControlSet(c) || ["\u0020", "\u0022", "\u0023", "\u003C", "\u003E"].includes(c) || isSpecial && c == "\u0027" || 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);
}
function charInFormUrlencodedSet(c) {
// deno-fmt-ignore
return charInUserinfoSet(c) || ["\u0021", "\u0024", "\u0025", "\u0026", "\u0027", "\u0028", "\u0029", "\u002B", "\u002C", "\u007E"].includes(c);
}
const encoder = new TextEncoder();
function encodeChar(c) {
return [...encoder.encode(c)]
.map((n) => `%${n.toString(16).padStart(2, "0")}`)
.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.replace(/\\/g, "/")].map((
c,
) => (charInPathSet(c) ? encodeChar(c) : c)).join("");
}
function encodeSearch(s, isSpecial) {
return [...s].map((
c,
) => (charInSearchSet(c, isSpecial) ? encodeChar(c) : c)).join("");
}
function encodeHash(s) {
return [...s].map((c) => (charInFragmentSet(c) ? encodeChar(c) : c)).join(
"",
);
}
function encodeSearchParam(s) {
return [...s].map((c) => (charInFormUrlencodedSet(c) ? encodeChar(c) : c))
.join("").replace(/%20/g, "+");
}
window.__bootstrap.url = {
URL,
URLSearchParams,
};
})(this);