313 lines
9.7 KiB
JavaScript
313 lines
9.7 KiB
JavaScript
|
// 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';
|
||
|
|
|
||
|
|
//
|
||
|
|
// 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.
|
||
|
|
var protocolPattern = /^([a-z0-9.+-]+:)/i,
|
||
|
|
portPattern = /:[0-9]*$/,
|
||
|
|
|
||
|
|
// Special case for a simple path URL
|
||
|
|
simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,
|
||
|
|
|
||
|
|
// RFC 2396: characters reserved for delimiting URLs.
|
||
|
|
// We actually just auto-escape these.
|
||
|
|
delims = [ '<', '>', '"', '`', ' ', '\r', '\n', '\t' ],
|
||
|
|
|
||
|
|
// RFC 2396: characters not allowed for various reasons.
|
||
|
|
unwise = [ '{', '}', '|', '\\', '^', '`' ].concat(delims),
|
||
|
|
|
||
|
|
// Allowed by RFCs, but cause of XSS attacks. Always escape these.
|
||
|
|
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.
|
||
|
|
nonHostChars = [ '%', '/', '?', ';', '#' ].concat(autoEscape),
|
||
|
|
hostEndingChars = [ '/', '?', '#' ],
|
||
|
|
hostnameMaxLen = 255,
|
||
|
|
hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
|
||
|
|
hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
|
||
|
|
// protocols that can allow "unsafe" and "unwise" chars.
|
||
|
|
/* eslint-disable no-script-url */
|
||
|
|
// protocols that never have a hostname.
|
||
|
|
hostlessProtocol = {
|
||
|
|
'javascript': true,
|
||
|
|
'javascript:': true
|
||
|
|
},
|
||
|
|
// protocols that always contain a // bit.
|
||
|
|
slashedProtocol = {
|
||
|
|
'http': true,
|
||
|
|
'https': true,
|
||
|
|
'ftp': true,
|
||
|
|
'gopher': true,
|
||
|
|
'file': true,
|
||
|
|
'http:': true,
|
||
|
|
'https:': true,
|
||
|
|
'ftp:': true,
|
||
|
|
'gopher:': true,
|
||
|
|
'file:': true
|
||
|
|
};
|
||
|
|
/* eslint-enable no-script-url */
|
||
|
|
|
||
|
|
function urlParse(url, slashesDenoteHost) {
|
||
|
|
if (url && url instanceof Url) { return url; }
|
||
|
|
|
||
|
|
var u = new Url();
|
||
|
|
u.parse(url, slashesDenoteHost);
|
||
|
|
return u;
|
||
|
|
}
|
||
|
|
|
||
|
|
Url.prototype.parse = function(url, slashesDenoteHost) {
|
||
|
|
var i, l, lowerProto, hec, slashes,
|
||
|
|
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
|
||
|
|
var simplePath = simplePathPattern.exec(rest);
|
||
|
|
if (simplePath) {
|
||
|
|
this.pathname = simplePath[1];
|
||
|
|
if (simplePath[2]) {
|
||
|
|
this.search = simplePath[2];
|
||
|
|
}
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var 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.
|
||
|
|
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
|
||
|
|
var hostEnd = -1;
|
||
|
|
for (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.
|
||
|
|
var 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 (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--; }
|
||
|
|
var 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.
|
||
|
|
var ipv6Hostname = this.hostname[0] === '[' &&
|
||
|
|
this.hostname[this.hostname.length - 1] === ']';
|
||
|
|
|
||
|
|
// validate a little.
|
||
|
|
if (!ipv6Hostname) {
|
||
|
|
var hostparts = this.hostname.split(/\./);
|
||
|
|
for (i = 0, l = hostparts.length; i < l; i++) {
|
||
|
|
var part = hostparts[i];
|
||
|
|
if (!part) { continue; }
|
||
|
|
if (!part.match(hostnamePartPattern)) {
|
||
|
|
var newpart = '';
|
||
|
|
for (var 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)) {
|
||
|
|
var validParts = hostparts.slice(0, i);
|
||
|
|
var notHost = hostparts.slice(i + 1);
|
||
|
|
var 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.
|
||
|
|
var hash = rest.indexOf('#');
|
||
|
|
if (hash !== -1) {
|
||
|
|
// got a fragment string.
|
||
|
|
this.hash = rest.substr(hash);
|
||
|
|
rest = rest.slice(0, hash);
|
||
|
|
}
|
||
|
|
var 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) {
|
||
|
|
var 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; }
|
||
|
|
};
|
||
|
|
|
||
|
|
module.exports = urlParse;
|