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s.golasch
312
build/node_modules/mdurl/parse.js
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312
build/node_modules/mdurl/parse.js
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// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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'use strict';
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//
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// Changes from joyent/node:
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//
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// 1. No leading slash in paths,
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// e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
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//
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// 2. Backslashes are not replaced with slashes,
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// so `http:\\example.org\` is treated like a relative path
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//
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// 3. Trailing colon is treated like a part of the path,
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// i.e. in `http://example.org:foo` pathname is `:foo`
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//
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// 4. Nothing is URL-encoded in the resulting object,
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// (in joyent/node some chars in auth and paths are encoded)
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//
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// 5. `url.parse()` does not have `parseQueryString` argument
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//
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// 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
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// which can be constructed using other parts of the url.
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//
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function Url() {
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this.protocol = null;
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this.slashes = null;
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this.auth = null;
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this.port = null;
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this.hostname = null;
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this.hash = null;
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this.search = null;
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this.pathname = null;
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}
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// Reference: RFC 3986, RFC 1808, RFC 2396
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// define these here so at least they only have to be
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// compiled once on the first module load.
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var protocolPattern = /^([a-z0-9.+-]+:)/i,
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portPattern = /:[0-9]*$/,
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// Special case for a simple path URL
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simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,
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// RFC 2396: characters reserved for delimiting URLs.
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// We actually just auto-escape these.
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delims = [ '<', '>', '"', '`', ' ', '\r', '\n', '\t' ],
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// RFC 2396: characters not allowed for various reasons.
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unwise = [ '{', '}', '|', '\\', '^', '`' ].concat(delims),
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// Allowed by RFCs, but cause of XSS attacks. Always escape these.
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autoEscape = [ '\'' ].concat(unwise),
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// Characters that are never ever allowed in a hostname.
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// Note that any invalid chars are also handled, but these
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// are the ones that are *expected* to be seen, so we fast-path
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// them.
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nonHostChars = [ '%', '/', '?', ';', '#' ].concat(autoEscape),
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hostEndingChars = [ '/', '?', '#' ],
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hostnameMaxLen = 255,
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hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
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hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
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// protocols that can allow "unsafe" and "unwise" chars.
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/* eslint-disable no-script-url */
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// protocols that never have a hostname.
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hostlessProtocol = {
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'javascript': true,
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'javascript:': true
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},
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// protocols that always contain a // bit.
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slashedProtocol = {
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'http': true,
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'https': true,
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'ftp': true,
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'gopher': true,
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'file': true,
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'http:': true,
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'https:': true,
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'ftp:': true,
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'gopher:': true,
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'file:': true
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};
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/* eslint-enable no-script-url */
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function urlParse(url, slashesDenoteHost) {
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if (url && url instanceof Url) { return url; }
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var u = new Url();
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u.parse(url, slashesDenoteHost);
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return u;
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}
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Url.prototype.parse = function(url, slashesDenoteHost) {
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var i, l, lowerProto, hec, slashes,
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rest = url;
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// trim before proceeding.
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// This is to support parse stuff like " http://foo.com \n"
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rest = rest.trim();
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if (!slashesDenoteHost && url.split('#').length === 1) {
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// Try fast path regexp
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var simplePath = simplePathPattern.exec(rest);
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if (simplePath) {
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this.pathname = simplePath[1];
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if (simplePath[2]) {
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this.search = simplePath[2];
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}
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return this;
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}
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}
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var proto = protocolPattern.exec(rest);
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if (proto) {
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proto = proto[0];
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lowerProto = proto.toLowerCase();
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this.protocol = proto;
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rest = rest.substr(proto.length);
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}
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// figure out if it's got a host
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// user@server is *always* interpreted as a hostname, and url
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// resolution will treat //foo/bar as host=foo,path=bar because that's
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// how the browser resolves relative URLs.
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if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
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slashes = rest.substr(0, 2) === '//';
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if (slashes && !(proto && hostlessProtocol[proto])) {
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rest = rest.substr(2);
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this.slashes = true;
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}
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}
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if (!hostlessProtocol[proto] &&
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(slashes || (proto && !slashedProtocol[proto]))) {
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// there's a hostname.
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// the first instance of /, ?, ;, or # ends the host.
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//
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// If there is an @ in the hostname, then non-host chars *are* allowed
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// to the left of the last @ sign, unless some host-ending character
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// comes *before* the @-sign.
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// URLs are obnoxious.
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//
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// ex:
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// http://a@b@c/ => user:a@b host:c
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// http://a@b?@c => user:a host:c path:/?@c
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// v0.12 TODO(isaacs): This is not quite how Chrome does things.
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// Review our test case against browsers more comprehensively.
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// find the first instance of any hostEndingChars
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var hostEnd = -1;
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for (i = 0; i < hostEndingChars.length; i++) {
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hec = rest.indexOf(hostEndingChars[i]);
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if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
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hostEnd = hec;
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}
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}
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// at this point, either we have an explicit point where the
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// auth portion cannot go past, or the last @ char is the decider.
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var auth, atSign;
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if (hostEnd === -1) {
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// atSign can be anywhere.
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atSign = rest.lastIndexOf('@');
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} else {
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// atSign must be in auth portion.
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// http://a@b/c@d => host:b auth:a path:/c@d
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atSign = rest.lastIndexOf('@', hostEnd);
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}
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// Now we have a portion which is definitely the auth.
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// Pull that off.
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if (atSign !== -1) {
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auth = rest.slice(0, atSign);
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rest = rest.slice(atSign + 1);
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this.auth = auth;
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}
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// the host is the remaining to the left of the first non-host char
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hostEnd = -1;
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for (i = 0; i < nonHostChars.length; i++) {
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hec = rest.indexOf(nonHostChars[i]);
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if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
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hostEnd = hec;
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}
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}
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// if we still have not hit it, then the entire thing is a host.
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if (hostEnd === -1) {
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hostEnd = rest.length;
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}
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if (rest[hostEnd - 1] === ':') { hostEnd--; }
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var host = rest.slice(0, hostEnd);
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rest = rest.slice(hostEnd);
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// pull out port.
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this.parseHost(host);
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// we've indicated that there is a hostname,
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// so even if it's empty, it has to be present.
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this.hostname = this.hostname || '';
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// if hostname begins with [ and ends with ]
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// assume that it's an IPv6 address.
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var ipv6Hostname = this.hostname[0] === '[' &&
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this.hostname[this.hostname.length - 1] === ']';
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// validate a little.
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if (!ipv6Hostname) {
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var hostparts = this.hostname.split(/\./);
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for (i = 0, l = hostparts.length; i < l; i++) {
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var part = hostparts[i];
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if (!part) { continue; }
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if (!part.match(hostnamePartPattern)) {
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var newpart = '';
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for (var j = 0, k = part.length; j < k; j++) {
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if (part.charCodeAt(j) > 127) {
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// we replace non-ASCII char with a temporary placeholder
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// we need this to make sure size of hostname is not
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// broken by replacing non-ASCII by nothing
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newpart += 'x';
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} else {
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newpart += part[j];
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}
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}
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// we test again with ASCII char only
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if (!newpart.match(hostnamePartPattern)) {
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var validParts = hostparts.slice(0, i);
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var notHost = hostparts.slice(i + 1);
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var bit = part.match(hostnamePartStart);
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if (bit) {
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validParts.push(bit[1]);
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notHost.unshift(bit[2]);
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}
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if (notHost.length) {
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rest = notHost.join('.') + rest;
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}
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this.hostname = validParts.join('.');
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break;
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}
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}
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}
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}
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if (this.hostname.length > hostnameMaxLen) {
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this.hostname = '';
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}
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// strip [ and ] from the hostname
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// the host field still retains them, though
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if (ipv6Hostname) {
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this.hostname = this.hostname.substr(1, this.hostname.length - 2);
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}
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}
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// chop off from the tail first.
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var hash = rest.indexOf('#');
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if (hash !== -1) {
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// got a fragment string.
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this.hash = rest.substr(hash);
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rest = rest.slice(0, hash);
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}
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var qm = rest.indexOf('?');
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if (qm !== -1) {
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this.search = rest.substr(qm);
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rest = rest.slice(0, qm);
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}
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if (rest) { this.pathname = rest; }
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if (slashedProtocol[lowerProto] &&
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this.hostname && !this.pathname) {
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this.pathname = '';
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}
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return this;
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};
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Url.prototype.parseHost = function(host) {
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var port = portPattern.exec(host);
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if (port) {
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port = port[0];
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if (port !== ':') {
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this.port = port.substr(1);
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}
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host = host.substr(0, host.length - port.length);
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}
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if (host) { this.hostname = host; }
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};
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module.exports = urlParse;
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