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25x 25x 1363x 1937x 42x 42x 1937x 1321x 1321x 1363x 1363x 1938x 1328x 1328x 1328x 1938x 1938x 1938x 1938x 41x 41x 41x 4581x 4581x 4581x 220x 220x 200x 200x 220x 220x 4581x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x 41x | // 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.
'use strict';
const {
Int8Array,
ObjectCreate,
ObjectKeys,
SafeSet,
StringPrototypeCharCodeAt,
decodeURIComponent,
} = primordials;
const { toASCII } = require('internal/idna');
const { encodeStr, hexTable } = require('internal/querystring');
const querystring = require('querystring');
const {
ERR_INVALID_ARG_TYPE,
ERR_INVALID_URL,
} = require('internal/errors').codes;
const { validateString } = require('internal/validators');
// This ensures setURLConstructor() is called before the native
// URL::ToObject() method is used.
const { spliceOne } = require('internal/util');
// WHATWG URL implementation provided by internal/url
const {
URL,
URLSearchParams,
domainToASCII,
domainToUnicode,
fileURLToPath,
formatSymbol,
pathToFileURL,
urlToHttpOptions,
} = require('internal/url');
// Original url.parse() API
function Url() {
this.protocol = null;
this.slashes = null;
this.auth = null;
this.host = null;
this.port = null;
this.hostname = null;
this.hash = null;
this.search = null;
this.query = null;
this.pathname = null;
this.path = null;
this.href = 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]*$/;
const hostPattern = /^\/\/[^@/][email protected][^@/]+/;
// Special case for a simple path URL
const simplePathPattern = /^(\/\/?(?!\/)[^?\s]*)(\?[^\s]*)?$/;
const hostnameMaxLen = 255;
// Protocols that can allow "unsafe" and "unwise" chars.
const unsafeProtocol = new SafeSet([
'javascript',
'javascript:',
]);
// Protocols that never have a hostname.
const hostlessProtocol = new SafeSet([
'javascript',
'javascript:',
]);
// Protocols that always contain a // bit.
const slashedProtocol = new SafeSet([
'http',
'http:',
'https',
'https:',
'ftp',
'ftp:',
'gopher',
'gopher:',
'file',
'file:',
'ws',
'ws:',
'wss',
'wss:',
]);
const {
CHAR_SPACE,
CHAR_TAB,
CHAR_CARRIAGE_RETURN,
CHAR_LINE_FEED,
CHAR_NO_BREAK_SPACE,
CHAR_ZERO_WIDTH_NOBREAK_SPACE,
CHAR_HASH,
CHAR_FORWARD_SLASH,
CHAR_LEFT_SQUARE_BRACKET,
CHAR_RIGHT_SQUARE_BRACKET,
CHAR_LEFT_ANGLE_BRACKET,
CHAR_RIGHT_ANGLE_BRACKET,
CHAR_LEFT_CURLY_BRACKET,
CHAR_RIGHT_CURLY_BRACKET,
CHAR_QUESTION_MARK,
CHAR_LOWERCASE_A,
CHAR_LOWERCASE_Z,
CHAR_UPPERCASE_A,
CHAR_UPPERCASE_Z,
CHAR_DOT,
CHAR_0,
CHAR_9,
CHAR_HYPHEN_MINUS,
CHAR_PLUS,
CHAR_UNDERSCORE,
CHAR_DOUBLE_QUOTE,
CHAR_SINGLE_QUOTE,
CHAR_PERCENT,
CHAR_SEMICOLON,
CHAR_BACKWARD_SLASH,
CHAR_CIRCUMFLEX_ACCENT,
CHAR_GRAVE_ACCENT,
CHAR_VERTICAL_LINE,
CHAR_AT,
} = require('internal/constants');
function urlParse(url, parseQueryString, slashesDenoteHost) {
if (url instanceof Url) return url;
const urlObject = new Url();
urlObject.parse(url, parseQueryString, slashesDenoteHost);
return urlObject;
}
function isIpv6Hostname(hostname) {
return (
StringPrototypeCharCodeAt(hostname, 0) === CHAR_LEFT_SQUARE_BRACKET &&
StringPrototypeCharCodeAt(hostname, hostname.length - 1) ===
CHAR_RIGHT_SQUARE_BRACKET
);
}
// This prevents some common spoofing bugs due to our use of IDNA toASCII. For
// compatibility, the set of characters we use here is the *intersection* of
// "forbidden host code point" in the WHATWG URL Standard [1] and the
// characters in the host parsing loop in Url.prototype.parse, with the
// following additions:
//
// - ':' since this could cause a "protocol spoofing" bug
// - '@' since this could cause parts of the hostname to be confused with auth
// - '[' and ']' since this could cause a non-IPv6 hostname to be interpreted
// as IPv6 by isIpv6Hostname above
//
// [1]: https://url.spec.whatwg.org/#forbidden-host-code-point
const forbiddenHostChars = /[\0\t\n\r #%/:<>[email protected][\\\]^|]/;
// For IPv6, permit '[', ']', and ':'.
const forbiddenHostCharsIpv6 = /[\0\t\n\r #%/<>[email protected]\\^|]/;
Url.prototype.parse = function parse(url, parseQueryString, slashesDenoteHost) {
validateString(url, 'url');
// Copy chrome, IE, opera backslash-handling behavior.
// Back slashes before the query string get converted to forward slashes
// See: https://code.google.com/p/chromium/issues/detail?id=25916
let hasHash = false;
let hasAt = false;
let start = -1;
let end = -1;
let rest = '';
let lastPos = 0;
for (let i = 0, inWs = false, split = false; i < url.length; ++i) {
const code = url.charCodeAt(i);
// Find first and last non-whitespace characters for trimming
const isWs = code < 33 ||
code === CHAR_NO_BREAK_SPACE ||
code === CHAR_ZERO_WIDTH_NOBREAK_SPACE;
if (start === -1) {
if (isWs)
continue;
lastPos = start = i;
} else if (inWs) {
if (!isWs) {
end = -1;
inWs = false;
}
} else if (isWs) {
end = i;
inWs = true;
}
// Only convert backslashes while we haven't seen a split character
if (!split) {
switch (code) {
case CHAR_AT:
hasAt = true;
break;
case CHAR_HASH:
hasHash = true;
// Fall through
case CHAR_QUESTION_MARK:
split = true;
break;
case CHAR_BACKWARD_SLASH:
if (i - lastPos > 0)
rest += url.slice(lastPos, i);
rest += '/';
lastPos = i + 1;
break;
}
} else if (!hasHash && code === CHAR_HASH) {
hasHash = true;
}
}
// Check if string was non-empty (including strings with only whitespace)
if (start !== -1) {
if (lastPos === start) {
// We didn't convert any backslashes
if (end === -1) {
if (start === 0)
rest = url;
else
rest = url.slice(start);
} else {
rest = url.slice(start, end);
}
} else if (end === -1 && lastPos < url.length) {
// We converted some backslashes and have only part of the entire string
rest += url.slice(lastPos);
} else if (end !== -1 && lastPos < end) {
// We converted some backslashes and have only part of the entire string
rest += url.slice(lastPos, end);
}
}
if (!slashesDenoteHost && !hasHash && !hasAt) {
// Try fast path regexp
const simplePath = simplePathPattern.exec(rest);
if (simplePath) {
this.path = rest;
this.href = rest;
this.pathname = simplePath[1];
if (simplePath[2]) {
this.search = simplePath[2];
if (parseQueryString) {
this.query = querystring.parse(this.search.slice(1));
} else {
this.query = this.search.slice(1);
}
} else if (parseQueryString) {
this.search = null;
this.query = ObjectCreate(null);
}
return this;
}
}
let proto = protocolPattern.exec(rest);
let lowerProto;
if (proto) {
proto = proto[0];
lowerProto = proto.toLowerCase();
this.protocol = lowerProto;
rest = rest.slice(proto.length);
}
// Figure out if it's got a host
// [email protected] 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.
let slashes;
if (slashesDenoteHost || proto || hostPattern.test(rest)) {
slashes = rest.charCodeAt(0) === CHAR_FORWARD_SLASH &&
rest.charCodeAt(1) === CHAR_FORWARD_SLASH;
if (slashes && !(proto && hostlessProtocol.has(lowerProto))) {
rest = rest.slice(2);
this.slashes = true;
}
}
if (!hostlessProtocol.has(lowerProto) &&
(slashes || (proto && !slashedProtocol.has(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://[email protected]@c/ => user:[email protected] host:c
// http://[email protected][email protected] => user:a host:b path:/[email protected]
let hostEnd = -1;
let atSign = -1;
let nonHost = -1;
for (let i = 0; i < rest.length; ++i) {
switch (rest.charCodeAt(i)) {
case CHAR_TAB:
case CHAR_LINE_FEED:
case CHAR_CARRIAGE_RETURN:
case CHAR_SPACE:
case CHAR_DOUBLE_QUOTE:
case CHAR_PERCENT:
case CHAR_SINGLE_QUOTE:
case CHAR_SEMICOLON:
case CHAR_LEFT_ANGLE_BRACKET:
case CHAR_RIGHT_ANGLE_BRACKET:
case CHAR_BACKWARD_SLASH:
case CHAR_CIRCUMFLEX_ACCENT:
case CHAR_GRAVE_ACCENT:
case CHAR_LEFT_CURLY_BRACKET:
case CHAR_VERTICAL_LINE:
case CHAR_RIGHT_CURLY_BRACKET:
// Characters that are never ever allowed in a hostname from RFC 2396
if (nonHost === -1)
nonHost = i;
break;
case CHAR_HASH:
case CHAR_FORWARD_SLASH:
case CHAR_QUESTION_MARK:
// Find the first instance of any host-ending characters
if (nonHost === -1)
nonHost = i;
hostEnd = i;
break;
case CHAR_AT:
// At this point, either we have an explicit point where the
// auth portion cannot go past, or the last @ char is the decider.
atSign = i;
nonHost = -1;
break;
}
if (hostEnd !== -1)
break;
}
start = 0;
if (atSign !== -1) {
this.auth = decodeURIComponent(rest.slice(0, atSign));
start = atSign + 1;
}
if (nonHost === -1) {
this.host = rest.slice(start);
rest = '';
} else {
this.host = rest.slice(start, nonHost);
rest = rest.slice(nonHost);
}
// pull out port.
this.parseHost();
// We've indicated that there is a hostname,
// so even if it's empty, it has to be present.
if (typeof this.hostname !== 'string')
this.hostname = '';
const hostname = this.hostname;
// If hostname begins with [ and ends with ]
// assume that it's an IPv6 address.
const ipv6Hostname = isIpv6Hostname(hostname);
// validate a little.
if (!ipv6Hostname) {
rest = getHostname(this, rest, hostname);
}
if (this.hostname.length > hostnameMaxLen) {
this.hostname = '';
} else {
// Hostnames are always lower case.
this.hostname = this.hostname.toLowerCase();
}
if (this.hostname !== '') {
if (ipv6Hostname) {
if (forbiddenHostCharsIpv6.test(this.hostname)) {
throw new ERR_INVALID_URL(url);
}
} else {
// IDNA Support: Returns a punycoded representation of "domain".
// It only converts parts of the domain name that
// have non-ASCII characters, i.e. it doesn't matter if
// you call it with a domain that already is ASCII-only.
// Use lenient mode (`true`) to try to support even non-compliant
// URLs.
this.hostname = toASCII(this.hostname, true);
// Prevent two potential routes of hostname spoofing.
// 1. If this.hostname is empty, it must have become empty due to toASCII
// since we checked this.hostname above.
// 2. If any of forbiddenHostChars appears in this.hostname, it must have
// also gotten in due to toASCII. This is since getHostname would have
// filtered them out otherwise.
// Rather than trying to correct this by moving the non-host part into
// the pathname as we've done in getHostname, throw an exception to
// convey the severity of this issue.
if (this.hostname === '' || forbiddenHostChars.test(this.hostname)) {
throw new ERR_INVALID_URL(url);
}
}
}
const p = this.port ? ':' + this.port : '';
const h = this.hostname || '';
this.host = h + p;
// strip [ and ] from the hostname
// the host field still retains them, though
if (ipv6Hostname) {
this.hostname = this.hostname.slice(1, -1);
if (rest[0] !== '/') {
rest = '/' + rest;
}
}
}
// Now rest is set to the post-host stuff.
// Chop off any delim chars.
if (!unsafeProtocol.has(lowerProto)) {
// First, make 100% sure that any "autoEscape" chars get
// escaped, even if encodeURIComponent doesn't think they
// need to be.
rest = autoEscapeStr(rest);
}
let questionIdx = -1;
let hashIdx = -1;
for (let i = 0; i < rest.length; ++i) {
const code = rest.charCodeAt(i);
if (code === CHAR_HASH) {
this.hash = rest.slice(i);
hashIdx = i;
break;
} else if (code === CHAR_QUESTION_MARK && questionIdx === -1) {
questionIdx = i;
}
}
if (questionIdx !== -1) {
if (hashIdx === -1) {
this.search = rest.slice(questionIdx);
this.query = rest.slice(questionIdx + 1);
} else {
this.search = rest.slice(questionIdx, hashIdx);
this.query = rest.slice(questionIdx + 1, hashIdx);
}
if (parseQueryString) {
this.query = querystring.parse(this.query);
}
} else if (parseQueryString) {
// No query string, but parseQueryString still requested
this.search = null;
this.query = ObjectCreate(null);
}
const useQuestionIdx =
questionIdx !== -1 && (hashIdx === -1 || questionIdx < hashIdx);
const firstIdx = useQuestionIdx ? questionIdx : hashIdx;
if (firstIdx === -1) {
if (rest.length > 0)
this.pathname = rest;
} else if (firstIdx > 0) {
this.pathname = rest.slice(0, firstIdx);
}
if (slashedProtocol.has(lowerProto) &&
this.hostname && !this.pathname) {
this.pathname = '/';
}
// To support http.request
if (this.pathname || this.search) {
const p = this.pathname || '';
const s = this.search || '';
this.path = p + s;
}
// Finally, reconstruct the href based on what has been validated.
this.href = this.format();
return this;
};
function getHostname(self, rest, hostname) {
for (let i = 0; i < hostname.length; ++i) {
const code = hostname.charCodeAt(i);
const isValid = (code >= CHAR_LOWERCASE_A && code <= CHAR_LOWERCASE_Z) ||
code === CHAR_DOT ||
(code >= CHAR_UPPERCASE_A && code <= CHAR_UPPERCASE_Z) ||
(code >= CHAR_0 && code <= CHAR_9) ||
code === CHAR_HYPHEN_MINUS ||
code === CHAR_PLUS ||
code === CHAR_UNDERSCORE ||
code > 127;
// Invalid host character
if (!isValid) {
self.hostname = hostname.slice(0, i);
return `/${hostname.slice(i)}${rest}`;
}
}
return rest;
}
// Escaped characters. Use empty strings to fill up unused entries.
// Using Array is faster than Object/Map
const escapedCodes = [
/* 0 - 9 */ '', '', '', '', '', '', '', '', '', '%09',
/* 10 - 19 */ '%0A', '', '', '%0D', '', '', '', '', '', '',
/* 20 - 29 */ '', '', '', '', '', '', '', '', '', '',
/* 30 - 39 */ '', '', '%20', '', '%22', '', '', '', '', '%27',
/* 40 - 49 */ '', '', '', '', '', '', '', '', '', '',
/* 50 - 59 */ '', '', '', '', '', '', '', '', '', '',
/* 60 - 69 */ '%3C', '', '%3E', '', '', '', '', '', '', '',
/* 70 - 79 */ '', '', '', '', '', '', '', '', '', '',
/* 80 - 89 */ '', '', '', '', '', '', '', '', '', '',
/* 90 - 99 */ '', '', '%5C', '', '%5E', '', '%60', '', '', '',
/* 100 - 109 */ '', '', '', '', '', '', '', '', '', '',
/* 110 - 119 */ '', '', '', '', '', '', '', '', '', '',
/* 120 - 125 */ '', '', '', '%7B', '%7C', '%7D',
];
// Automatically escape all delimiters and unwise characters from RFC 2396.
// Also escape single quotes in case of an XSS attack.
// Return the escaped string.
function autoEscapeStr(rest) {
let escaped = '';
let lastEscapedPos = 0;
for (let i = 0; i < rest.length; ++i) {
// `escaped` contains substring up to the last escaped character.
const escapedChar = escapedCodes[rest.charCodeAt(i)];
if (escapedChar) {
// Concat if there are ordinary characters in the middle.
if (i > lastEscapedPos)
escaped += rest.slice(lastEscapedPos, i);
escaped += escapedChar;
lastEscapedPos = i + 1;
}
}
if (lastEscapedPos === 0) // Nothing has been escaped.
return rest;
// There are ordinary characters at the end.
if (lastEscapedPos < rest.length)
escaped += rest.slice(lastEscapedPos);
return escaped;
}
// Format a parsed object into a url string
function urlFormat(urlObject, options) {
// Ensure it's an object, and not a string url.
// If it's an object, this is a no-op.
// this way, you can call urlParse() on strings
// to clean up potentially wonky urls.
if (typeof urlObject === 'string') {
urlObject = urlParse(urlObject);
} else if (typeof urlObject !== 'object' || urlObject === null) {
throw new ERR_INVALID_ARG_TYPE('urlObject',
['Object', 'string'], urlObject);
} else if (!(urlObject instanceof Url)) {
const format = urlObject[formatSymbol];
return format ?
format.call(urlObject, options) :
Url.prototype.format.call(urlObject);
}
return urlObject.format();
}
// These characters do not need escaping:
// ! - . _ ~
// ' ( ) * :
// digits
// alpha (uppercase)
// alpha (lowercase)
const noEscapeAuth = new Int8Array([
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x00 - 0x0F
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x10 - 0x1F
0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, // 0x20 - 0x2F
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, // 0x30 - 0x3F
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x40 - 0x4F
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, // 0x50 - 0x5F
0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // 0x60 - 0x6F
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, // 0x70 - 0x7F
]);
Url.prototype.format = function format() {
let auth = this.auth || '';
if (auth) {
auth = encodeStr(auth, noEscapeAuth, hexTable);
auth += '@';
}
let protocol = this.protocol || '';
let pathname = this.pathname || '';
let hash = this.hash || '';
let host = '';
let query = '';
if (this.host) {
host = auth + this.host;
} else if (this.hostname) {
host = auth + (
this.hostname.includes(':') && !isIpv6Hostname(this.hostname) ?
'[' + this.hostname + ']' :
this.hostname
);
if (this.port) {
host += ':' + this.port;
}
}
if (this.query !== null && typeof this.query === 'object') {
query = querystring.stringify(this.query);
}
let search = this.search || (query && ('?' + query)) || '';
if (protocol && protocol.charCodeAt(protocol.length - 1) !== 58/* : */)
protocol += ':';
let newPathname = '';
let lastPos = 0;
for (let i = 0; i < pathname.length; ++i) {
switch (pathname.charCodeAt(i)) {
case CHAR_HASH:
if (i - lastPos > 0)
newPathname += pathname.slice(lastPos, i);
newPathname += '%23';
lastPos = i + 1;
break;
case CHAR_QUESTION_MARK:
if (i - lastPos > 0)
newPathname += pathname.slice(lastPos, i);
newPathname += '%3F';
lastPos = i + 1;
break;
}
}
if (lastPos > 0) {
if (lastPos !== pathname.length)
pathname = newPathname + pathname.slice(lastPos);
else
pathname = newPathname;
}
// Only the slashedProtocols get the //. Not mailto:, xmpp:, etc.
// unless they had them to begin with.
if (this.slashes || slashedProtocol.has(protocol)) {
if (this.slashes || host) {
if (pathname && pathname.charCodeAt(0) !== CHAR_FORWARD_SLASH)
pathname = '/' + pathname;
host = '//' + host;
} else if (protocol.length >= 4 &&
protocol.charCodeAt(0) === 102/* f */ &&
protocol.charCodeAt(1) === 105/* i */ &&
protocol.charCodeAt(2) === 108/* l */ &&
protocol.charCodeAt(3) === 101/* e */) {
host = '//';
}
}
search = search.replace(/#/g, '%23');
if (hash && hash.charCodeAt(0) !== CHAR_HASH)
hash = '#' + hash;
if (search && search.charCodeAt(0) !== CHAR_QUESTION_MARK)
search = '?' + search;
return protocol + host + pathname + search + hash;
};
function urlResolve(source, relative) {
return urlParse(source, false, true).resolve(relative);
}
Url.prototype.resolve = function resolve(relative) {
return this.resolveObject(urlParse(relative, false, true)).format();
};
function urlResolveObject(source, relative) {
if (!source) return relative;
return urlParse(source, false, true).resolveObject(relative);
}
Url.prototype.resolveObject = function resolveObject(relative) {
if (typeof relative === 'string') {
const rel = new Url();
rel.parse(relative, false, true);
relative = rel;
}
const result = new Url();
const tkeys = ObjectKeys(this);
for (let tk = 0; tk < tkeys.length; tk++) {
const tkey = tkeys[tk];
result[tkey] = this[tkey];
}
// Hash is always overridden, no matter what.
// even href="" will remove it.
result.hash = relative.hash;
// If the relative url is empty, then there's nothing left to do here.
if (relative.href === '') {
result.href = result.format();
return result;
}
// Hrefs like //foo/bar always cut to the protocol.
if (relative.slashes && !relative.protocol) {
// Take everything except the protocol from relative
const rkeys = ObjectKeys(relative);
for (let rk = 0; rk < rkeys.length; rk++) {
const rkey = rkeys[rk];
if (rkey !== 'protocol')
result[rkey] = relative[rkey];
}
// urlParse appends trailing / to urls like http://www.example.com
if (slashedProtocol.has(result.protocol) &&
result.hostname && !result.pathname) {
result.path = result.pathname = '/';
}
result.href = result.format();
return result;
}
if (relative.protocol && relative.protocol !== result.protocol) {
// If it's a known url protocol, then changing
// the protocol does weird things
// first, if it's not file:, then we MUST have a host,
// and if there was a path
// to begin with, then we MUST have a path.
// if it is file:, then the host is dropped,
// because that's known to be hostless.
// anything else is assumed to be absolute.
if (!slashedProtocol.has(relative.protocol)) {
const keys = ObjectKeys(relative);
for (let v = 0; v < keys.length; v++) {
const k = keys[v];
result[k] = relative[k];
}
result.href = result.format();
return result;
}
result.protocol = relative.protocol;
if (!relative.host &&
!/^file:?$/.test(relative.protocol) &&
!hostlessProtocol.has(relative.protocol)) {
const relPath = (relative.pathname || '').split('/');
while (relPath.length && !(relative.host = relPath.shift()));
if (!relative.host) relative.host = '';
if (!relative.hostname) relative.hostname = '';
if (relPath[0] !== '') relPath.unshift('');
if (relPath.length < 2) relPath.unshift('');
result.pathname = relPath.join('/');
} else {
result.pathname = relative.pathname;
}
result.search = relative.search;
result.query = relative.query;
result.host = relative.host || '';
result.auth = relative.auth;
result.hostname = relative.hostname || relative.host;
result.port = relative.port;
// To support http.request
if (result.pathname || result.search) {
const p = result.pathname || '';
const s = result.search || '';
result.path = p + s;
}
result.slashes = result.slashes || relative.slashes;
result.href = result.format();
return result;
}
const isSourceAbs = (result.pathname && result.pathname.charAt(0) === '/');
const isRelAbs = (
relative.host || (relative.pathname && relative.pathname.charAt(0) === '/')
);
let mustEndAbs = (isRelAbs || isSourceAbs ||
(result.host && relative.pathname));
const removeAllDots = mustEndAbs;
let srcPath = (result.pathname && result.pathname.split('/')) || [];
const relPath = (relative.pathname && relative.pathname.split('/')) || [];
const noLeadingSlashes = result.protocol &&
!slashedProtocol.has(result.protocol);
// If the url is a non-slashed url, then relative
// links like ../.. should be able
// to crawl up to the hostname, as well. This is strange.
// result.protocol has already been set by now.
// Later on, put the first path part into the host field.
if (noLeadingSlashes) {
result.hostname = '';
result.port = null;
if (result.host) {
if (srcPath[0] === '') srcPath[0] = result.host;
else srcPath.unshift(result.host);
}
result.host = '';
if (relative.protocol) {
relative.hostname = null;
relative.port = null;
result.auth = null;
if (relative.host) {
if (relPath[0] === '') relPath[0] = relative.host;
else relPath.unshift(relative.host);
}
relative.host = null;
}
mustEndAbs = mustEndAbs && (relPath[0] === '' || srcPath[0] === '');
}
if (isRelAbs) {
// it's absolute.
if (relative.host || relative.host === '') {
if (result.host !== relative.host) result.auth = null;
result.host = relative.host;
result.port = relative.port;
}
if (relative.hostname || relative.hostname === '') {
if (result.hostname !== relative.hostname) result.auth = null;
result.hostname = relative.hostname;
}
result.search = relative.search;
result.query = relative.query;
srcPath = relPath;
// Fall through to the dot-handling below.
} else if (relPath.length) {
// it's relative
// throw away the existing file, and take the new path instead.
if (!srcPath) srcPath = [];
srcPath.pop();
srcPath = srcPath.concat(relPath);
result.search = relative.search;
result.query = relative.query;
} else if (relative.search !== null && relative.search !== undefined) {
// Just pull out the search.
// like href='?foo'.
// Put this after the other two cases because it simplifies the booleans
if (noLeadingSlashes) {
result.hostname = result.host = srcPath.shift();
// Occasionally the auth can get stuck only in host.
// This especially happens in cases like
// url.resolveObject('mailto:[email protected]', '[email protected]')
const authInHost =
result.host && result.host.indexOf('@') > 0 && result.host.split('@');
if (authInHost) {
result.auth = authInHost.shift();
result.host = result.hostname = authInHost.shift();
}
}
result.search = relative.search;
result.query = relative.query;
// To support http.request
if (result.pathname !== null || result.search !== null) {
result.path = (result.pathname ? result.pathname : '') +
(result.search ? result.search : '');
}
result.href = result.format();
return result;
}
if (!srcPath.length) {
// No path at all. All other things were already handled above.
result.pathname = null;
// To support http.request
if (result.search) {
result.path = '/' + result.search;
} else {
result.path = null;
}
result.href = result.format();
return result;
}
// If a url ENDs in . or .., then it must get a trailing slash.
// however, if it ends in anything else non-slashy,
// then it must NOT get a trailing slash.
let last = srcPath.slice(-1)[0];
const hasTrailingSlash = (
((result.host || relative.host || srcPath.length > 1) &&
(last === '.' || last === '..')) || last === '');
// Strip single dots, resolve double dots to parent dir
// if the path tries to go above the root, `up` ends up > 0
let up = 0;
for (let i = srcPath.length - 1; i >= 0; i--) {
last = srcPath[i];
if (last === '.') {
spliceOne(srcPath, i);
} else if (last === '..') {
spliceOne(srcPath, i);
up++;
} else if (up) {
spliceOne(srcPath, i);
up--;
}
}
// If the path is allowed to go above the root, restore leading ..s
if (!mustEndAbs && !removeAllDots) {
while (up--) {
srcPath.unshift('..');
}
}
if (mustEndAbs && srcPath[0] !== '' &&
(!srcPath[0] || srcPath[0].charAt(0) !== '/')) {
srcPath.unshift('');
}
if (hasTrailingSlash && (srcPath.join('/').substr(-1) !== '/')) {
srcPath.push('');
}
const isAbsolute = srcPath[0] === '' ||
(srcPath[0] && srcPath[0].charAt(0) === '/');
// put the host back
if (noLeadingSlashes) {
result.hostname =
result.host = isAbsolute ? '' : srcPath.length ? srcPath.shift() : '';
// Occasionally the auth can get stuck only in host.
// This especially happens in cases like
// url.resolveObject('mailto:[email protected]', '[email protected]')
const authInHost = result.host && result.host.indexOf('@') > 0 ?
result.host.split('@') : false;
if (authInHost) {
result.auth = authInHost.shift();
result.host = result.hostname = authInHost.shift();
}
}
mustEndAbs = mustEndAbs || (result.host && srcPath.length);
if (mustEndAbs && !isAbsolute) {
srcPath.unshift('');
}
if (!srcPath.length) {
result.pathname = null;
result.path = null;
} else {
result.pathname = srcPath.join('/');
}
// To support request.http
if (result.pathname !== null || result.search !== null) {
result.path = (result.pathname ? result.pathname : '') +
(result.search ? result.search : '');
}
result.auth = relative.auth || result.auth;
result.slashes = result.slashes || relative.slashes;
result.href = result.format();
return result;
};
Url.prototype.parseHost = function parseHost() {
let host = this.host;
let port = portPattern.exec(host);
if (port) {
port = port[0];
if (port !== ':') {
this.port = port.slice(1);
}
host = host.slice(0, host.length - port.length);
}
if (host) this.hostname = host;
};
module.exports = {
// Original API
Url,
parse: urlParse,
resolve: urlResolve,
resolveObject: urlResolveObject,
format: urlFormat,
// WHATWG API
URL,
URLSearchParams,
domainToASCII,
domainToUnicode,
// Utilities
pathToFileURL,
fileURLToPath,
urlToHttpOptions,
};
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