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Просмотр файла: index.cjs.js
'use strict';
/* eslint-disable no-bitwise */
const decodeCache = {};
function getDecodeCache (exclude) {
let cache = decodeCache[exclude];
if (cache) { return cache }
cache = decodeCache[exclude] = [];
for (let i = 0; i < 128; i++) {
const ch = String.fromCharCode(i);
cache.push(ch);
}
for (let i = 0; i < exclude.length; i++) {
const ch = exclude.charCodeAt(i);
cache[ch] = '%' + ('0' + ch.toString(16).toUpperCase()).slice(-2);
}
return cache
}
// Decode percent-encoded string.
//
function decode (string, exclude) {
if (typeof exclude !== 'string') {
exclude = decode.defaultChars;
}
const cache = getDecodeCache(exclude);
return string.replace(/(%[a-f0-9]{2})+/gi, function (seq) {
let result = '';
for (let i = 0, l = seq.length; i < l; i += 3) {
const b1 = parseInt(seq.slice(i + 1, i + 3), 16);
if (b1 < 0x80) {
result += cache[b1];
continue
}
if ((b1 & 0xE0) === 0xC0 && (i + 3 < l)) {
// 110xxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
if ((b2 & 0xC0) === 0x80) {
const chr = ((b1 << 6) & 0x7C0) | (b2 & 0x3F);
if (chr < 0x80) {
result += '\ufffd\ufffd';
} else {
result += String.fromCharCode(chr);
}
i += 3;
continue
}
}
if ((b1 & 0xF0) === 0xE0 && (i + 6 < l)) {
// 1110xxxx 10xxxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
const b3 = parseInt(seq.slice(i + 7, i + 9), 16);
if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
const chr = ((b1 << 12) & 0xF000) | ((b2 << 6) & 0xFC0) | (b3 & 0x3F);
if (chr < 0x800 || (chr >= 0xD800 && chr <= 0xDFFF)) {
result += '\ufffd\ufffd\ufffd';
} else {
result += String.fromCharCode(chr);
}
i += 6;
continue
}
}
if ((b1 & 0xF8) === 0xF0 && (i + 9 < l)) {
// 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
const b2 = parseInt(seq.slice(i + 4, i + 6), 16);
const b3 = parseInt(seq.slice(i + 7, i + 9), 16);
const b4 = parseInt(seq.slice(i + 10, i + 12), 16);
if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80 && (b4 & 0xC0) === 0x80) {
let chr = ((b1 << 18) & 0x1C0000) | ((b2 << 12) & 0x3F000) | ((b3 << 6) & 0xFC0) | (b4 & 0x3F);
if (chr < 0x10000 || chr > 0x10FFFF) {
result += '\ufffd\ufffd\ufffd\ufffd';
} else {
chr -= 0x10000;
result += String.fromCharCode(0xD800 + (chr >> 10), 0xDC00 + (chr & 0x3FF));
}
i += 9;
continue
}
}
result += '\ufffd';
}
return result
})
}
decode.defaultChars = ';/?:@&=+$,#';
decode.componentChars = '';
const encodeCache = {};
// Create a lookup array where anything but characters in `chars` string
// and alphanumeric chars is percent-encoded.
//
function getEncodeCache (exclude) {
let cache = encodeCache[exclude];
if (cache) { return cache }
cache = encodeCache[exclude] = [];
for (let i = 0; i < 128; i++) {
const ch = String.fromCharCode(i);
if (/^[0-9a-z]$/i.test(ch)) {
// always allow unencoded alphanumeric characters
cache.push(ch);
} else {
cache.push('%' + ('0' + i.toString(16).toUpperCase()).slice(-2));
}
}
for (let i = 0; i < exclude.length; i++) {
cache[exclude.charCodeAt(i)] = exclude[i];
}
return cache
}
// Encode unsafe characters with percent-encoding, skipping already
// encoded sequences.
//
// - string - string to encode
// - exclude - list of characters to ignore (in addition to a-zA-Z0-9)
// - keepEscaped - don't encode '%' in a correct escape sequence (default: true)
//
function encode (string, exclude, keepEscaped) {
if (typeof exclude !== 'string') {
// encode(string, keepEscaped)
keepEscaped = exclude;
exclude = encode.defaultChars;
}
if (typeof keepEscaped === 'undefined') {
keepEscaped = true;
}
const cache = getEncodeCache(exclude);
let result = '';
for (let i = 0, l = string.length; i < l; i++) {
const code = string.charCodeAt(i);
if (keepEscaped && code === 0x25 /* % */ && i + 2 < l) {
if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) {
result += string.slice(i, i + 3);
i += 2;
continue
}
}
if (code < 128) {
result += cache[code];
continue
}
if (code >= 0xD800 && code <= 0xDFFF) {
if (code >= 0xD800 && code <= 0xDBFF && i + 1 < l) {
const nextCode = string.charCodeAt(i + 1);
if (nextCode >= 0xDC00 && nextCode <= 0xDFFF) {
result += encodeURIComponent(string[i] + string[i + 1]);
i++;
continue
}
}
result += '%EF%BF%BD';
continue
}
result += encodeURIComponent(string[i]);
}
return result
}
encode.defaultChars = ";/?:@&=+$,-_.!~*'()#";
encode.componentChars = "-_.!~*'()";
function format (url) {
let result = '';
result += url.protocol || '';
result += url.slashes ? '//' : '';
result += url.auth ? url.auth + '@' : '';
if (url.hostname && url.hostname.indexOf(':') !== -1) {
// ipv6 address
result += '[' + url.hostname + ']';
} else {
result += url.hostname || '';
}
result += url.port ? ':' + url.port : '';
result += url.pathname || '';
result += url.search || '';
result += url.hash || '';
return result
}
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// Changes from joyent/node:
//
// 1. No leading slash in paths,
// e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
//
// 2. Backslashes are not replaced with slashes,
// so `http:\\example.org\` is treated like a relative path
//
// 3. Trailing colon is treated like a part of the path,
// i.e. in `http://example.org:foo` pathname is `:foo`
//
// 4. Nothing is URL-encoded in the resulting object,
// (in joyent/node some chars in auth and paths are encoded)
//
// 5. `url.parse()` does not have `parseQueryString` argument
//
// 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
// which can be constructed using other parts of the url.
//
function Url () {
this.protocol = null;
this.slashes = null;
this.auth = null;
this.port = null;
this.hostname = null;
this.hash = null;
this.search = null;
this.pathname = null;
}
// Reference: RFC 3986, RFC 1808, RFC 2396
// define these here so at least they only have to be
// compiled once on the first module load.
const protocolPattern = /^([a-z0-9.+-]+:)/i;
const portPattern = /:[0-9]*$/;
// Special case for a simple path URL
/* eslint-disable-next-line no-useless-escape */
const simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/;
// RFC 2396: characters reserved for delimiting URLs.
// We actually just auto-escape these.
const delims = ['<', '>', '"', '`', ' ', '\r', '\n', '\t'];
// RFC 2396: characters not allowed for various reasons.
const unwise = ['{', '}', '|', '\\', '^', '`'].concat(delims);
// Allowed by RFCs, but cause of XSS attacks. Always escape these.
const autoEscape = ['\''].concat(unwise);
// Characters that are never ever allowed in a hostname.
// Note that any invalid chars are also handled, but these
// are the ones that are *expected* to be seen, so we fast-path
// them.
const nonHostChars = ['%', '/', '?', ';', '#'].concat(autoEscape);
const hostEndingChars = ['/', '?', '#'];
const hostnameMaxLen = 255;
const hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/;
const hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/;
// protocols that can allow "unsafe" and "unwise" chars.
// protocols that never have a hostname.
const hostlessProtocol = {
javascript: true,
'javascript:': true
};
// protocols that always contain a // bit.
const slashedProtocol = {
http: true,
https: true,
ftp: true,
gopher: true,
file: true,
'http:': true,
'https:': true,
'ftp:': true,
'gopher:': true,
'file:': true
};
function urlParse (url, slashesDenoteHost) {
if (url && url instanceof Url) return url
const u = new Url();
u.parse(url, slashesDenoteHost);
return u
}
Url.prototype.parse = function (url, slashesDenoteHost) {
let lowerProto, hec, slashes;
let rest = url;
// trim before proceeding.
// This is to support parse stuff like " http://foo.com \n"
rest = rest.trim();
if (!slashesDenoteHost && url.split('#').length === 1) {
// Try fast path regexp
const simplePath = simplePathPattern.exec(rest);
if (simplePath) {
this.pathname = simplePath[1];
if (simplePath[2]) {
this.search = simplePath[2];
}
return this
}
}
let proto = protocolPattern.exec(rest);
if (proto) {
proto = proto[0];
lowerProto = proto.toLowerCase();
this.protocol = proto;
rest = rest.substr(proto.length);
}
// figure out if it's got a host
// user@server is *always* interpreted as a hostname, and url
// resolution will treat //foo/bar as host=foo,path=bar because that's
// how the browser resolves relative URLs.
/* eslint-disable-next-line no-useless-escape */
if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
slashes = rest.substr(0, 2) === '//';
if (slashes && !(proto && hostlessProtocol[proto])) {
rest = rest.substr(2);
this.slashes = true;
}
}
if (!hostlessProtocol[proto] &&
(slashes || (proto && !slashedProtocol[proto]))) {
// there's a hostname.
// the first instance of /, ?, ;, or # ends the host.
//
// If there is an @ in the hostname, then non-host chars *are* allowed
// to the left of the last @ sign, unless some host-ending character
// comes *before* the @-sign.
// URLs are obnoxious.
//
// ex:
// http://a@b@c/ => user:a@b host:c
// http://a@b?@c => user:a host:c path:/?@c
// v0.12 TODO(isaacs): This is not quite how Chrome does things.
// Review our test case against browsers more comprehensively.
// find the first instance of any hostEndingChars
let hostEnd = -1;
for (let i = 0; i < hostEndingChars.length; i++) {
hec = rest.indexOf(hostEndingChars[i]);
if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
hostEnd = hec;
}
}
// at this point, either we have an explicit point where the
// auth portion cannot go past, or the last @ char is the decider.
let auth, atSign;
if (hostEnd === -1) {
// atSign can be anywhere.
atSign = rest.lastIndexOf('@');
} else {
// atSign must be in auth portion.
// http://a@b/c@d => host:b auth:a path:/c@d
atSign = rest.lastIndexOf('@', hostEnd);
}
// Now we have a portion which is definitely the auth.
// Pull that off.
if (atSign !== -1) {
auth = rest.slice(0, atSign);
rest = rest.slice(atSign + 1);
this.auth = auth;
}
// the host is the remaining to the left of the first non-host char
hostEnd = -1;
for (let i = 0; i < nonHostChars.length; i++) {
hec = rest.indexOf(nonHostChars[i]);
if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
hostEnd = hec;
}
}
// if we still have not hit it, then the entire thing is a host.
if (hostEnd === -1) {
hostEnd = rest.length;
}
if (rest[hostEnd - 1] === ':') { hostEnd--; }
const host = rest.slice(0, hostEnd);
rest = rest.slice(hostEnd);
// pull out port.
this.parseHost(host);
// we've indicated that there is a hostname,
// so even if it's empty, it has to be present.
this.hostname = this.hostname || '';
// if hostname begins with [ and ends with ]
// assume that it's an IPv6 address.
const ipv6Hostname = this.hostname[0] === '[' &&
this.hostname[this.hostname.length - 1] === ']';
// validate a little.
if (!ipv6Hostname) {
const hostparts = this.hostname.split(/\./);
for (let i = 0, l = hostparts.length; i < l; i++) {
const part = hostparts[i];
if (!part) { continue }
if (!part.match(hostnamePartPattern)) {
let newpart = '';
for (let j = 0, k = part.length; j < k; j++) {
if (part.charCodeAt(j) > 127) {
// we replace non-ASCII char with a temporary placeholder
// we need this to make sure size of hostname is not
// broken by replacing non-ASCII by nothing
newpart += 'x';
} else {
newpart += part[j];
}
}
// we test again with ASCII char only
if (!newpart.match(hostnamePartPattern)) {
const validParts = hostparts.slice(0, i);
const notHost = hostparts.slice(i + 1);
const bit = part.match(hostnamePartStart);
if (bit) {
validParts.push(bit[1]);
notHost.unshift(bit[2]);
}
if (notHost.length) {
rest = notHost.join('.') + rest;
}
this.hostname = validParts.join('.');
break
}
}
}
}
if (this.hostname.length > hostnameMaxLen) {
this.hostname = '';
}
// strip [ and ] from the hostname
// the host field still retains them, though
if (ipv6Hostname) {
this.hostname = this.hostname.substr(1, this.hostname.length - 2);
}
}
// chop off from the tail first.
const hash = rest.indexOf('#');
if (hash !== -1) {
// got a fragment string.
this.hash = rest.substr(hash);
rest = rest.slice(0, hash);
}
const qm = rest.indexOf('?');
if (qm !== -1) {
this.search = rest.substr(qm);
rest = rest.slice(0, qm);
}
if (rest) { this.pathname = rest; }
if (slashedProtocol[lowerProto] &&
this.hostname && !this.pathname) {
this.pathname = '';
}
return this
};
Url.prototype.parseHost = function (host) {
let port = portPattern.exec(host);
if (port) {
port = port[0];
if (port !== ':') {
this.port = port.substr(1);
}
host = host.substr(0, host.length - port.length);
}
if (host) { this.hostname = host; }
};
exports.decode = decode;
exports.encode = encode;
exports.format = format;
exports.parse = urlParse;
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