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Shuo/client/js/libs/uri.js

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2014-09-13 21:29:45 +00:00
/*!
* URI.js - Mutating URLs
*
* Version: 1.13.2
*
* Author: Rodney Rehm
* Web: http://medialize.github.io/URI.js/
*
* Licensed under
* MIT License http://www.opensource.org/licenses/mit-license
* GPL v3 http://opensource.org/licenses/GPL-3.0
*
*/
(function (root, factory) {
'use strict';
// https://github.com/umdjs/umd/blob/master/returnExports.js
if (typeof exports === 'object') {
// Node
module.exports = factory(require('./punycode'), require('./IPv6'), require('./SecondLevelDomains'));
} else if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define(['./punycode', './IPv6', './SecondLevelDomains'], factory);
} else {
// Browser globals (root is window)
root.URI = factory(root.punycode, root.IPv6, root.SecondLevelDomains, root);
}
}(this, function (punycode, IPv6, SLD, root) {
'use strict';
/*global location, escape, unescape */
// FIXME: v2.0.0 renamce non-camelCase properties to uppercase
/*jshint camelcase: false */
// save current URI variable, if any
var _URI = root && root.URI;
function URI(url, base) {
// Allow instantiation without the 'new' keyword
if (!(this instanceof URI)) {
return new URI(url, base);
}
if (url === undefined) {
if (typeof location !== 'undefined') {
url = location.href + '';
} else {
url = '';
}
}
this.href(url);
// resolve to base according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#constructor
if (base !== undefined) {
return this.absoluteTo(base);
}
return this;
}
URI.version = '1.13.2';
var p = URI.prototype;
var hasOwn = Object.prototype.hasOwnProperty;
function escapeRegEx(string) {
// https://github.com/medialize/URI.js/commit/85ac21783c11f8ccab06106dba9735a31a86924d#commitcomment-821963
return string.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
}
function getType(value) {
// IE8 doesn't return [Object Undefined] but [Object Object] for undefined value
if (value === undefined) {
return 'Undefined';
}
return String(Object.prototype.toString.call(value)).slice(8, -1);
}
function isArray(obj) {
return getType(obj) === 'Array';
}
function filterArrayValues(data, value) {
var lookup = {};
var i, length;
if (isArray(value)) {
for (i = 0, length = value.length; i < length; i++) {
lookup[value[i]] = true;
}
} else {
lookup[value] = true;
}
for (i = 0, length = data.length; i < length; i++) {
if (lookup[data[i]] !== undefined) {
data.splice(i, 1);
length--;
i--;
}
}
return data;
}
function arrayContains(list, value) {
var i, length;
// value may be string, number, array, regexp
if (isArray(value)) {
// Note: this can be optimized to O(n) (instead of current O(m * n))
for (i = 0, length = value.length; i < length; i++) {
if (!arrayContains(list, value[i])) {
return false;
}
}
return true;
}
var _type = getType(value);
for (i = 0, length = list.length; i < length; i++) {
if (_type === 'RegExp') {
if (typeof list[i] === 'string' && list[i].match(value)) {
return true;
}
} else if (list[i] === value) {
return true;
}
}
return false;
}
function arraysEqual(one, two) {
if (!isArray(one) || !isArray(two)) {
return false;
}
// arrays can't be equal if they have different amount of content
if (one.length !== two.length) {
return false;
}
one.sort();
two.sort();
for (var i = 0, l = one.length; i < l; i++) {
if (one[i] !== two[i]) {
return false;
}
}
return true;
}
URI._parts = function() {
return {
protocol: null,
username: null,
password: null,
hostname: null,
urn: null,
port: null,
path: null,
query: null,
fragment: null,
// state
duplicateQueryParameters: URI.duplicateQueryParameters,
escapeQuerySpace: URI.escapeQuerySpace
};
};
// state: allow duplicate query parameters (a=1&a=1)
URI.duplicateQueryParameters = false;
// state: replaces + with %20 (space in query strings)
URI.escapeQuerySpace = true;
// static properties
URI.protocol_expression = /^[a-z][a-z0-9.+-]*$/i;
URI.idn_expression = /[^a-z0-9\.-]/i;
URI.punycode_expression = /(xn--)/i;
// well, 333.444.555.666 matches, but it sure ain't no IPv4 - do we care?
URI.ip4_expression = /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/;
// credits to Rich Brown
// source: http://forums.intermapper.com/viewtopic.php?p=1096#1096
// specification: http://www.ietf.org/rfc/rfc4291.txt
URI.ip6_expression = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/;
// expression used is "gruber revised" (@gruber v2) determined to be the
// best solution in a regex-golf we did a couple of ages ago at
// * http://mathiasbynens.be/demo/url-regex
// * http://rodneyrehm.de/t/url-regex.html
URI.find_uri_expression = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/ig;
URI.findUri = {
// valid "scheme://" or "www."
start: /\b(?:([a-z][a-z0-9.+-]*:\/\/)|www\.)/gi,
// everything up to the next whitespace
end: /[\s\r\n]|$/,
// trim trailing punctuation captured by end RegExp
trim: /[`!()\[\]{};:'".,<>?«»“”„‘’]+$/
};
// http://www.iana.org/assignments/uri-schemes.html
// http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers#Well-known_ports
URI.defaultPorts = {
http: '80',
https: '443',
ftp: '21',
gopher: '70',
ws: '80',
wss: '443'
};
// allowed hostname characters according to RFC 3986
// ALPHA DIGIT "-" "." "_" "~" "!" "$" "&" "'" "(" ")" "*" "+" "," ";" "=" %encoded
// I've never seen a (non-IDN) hostname other than: ALPHA DIGIT . -
URI.invalid_hostname_characters = /[^a-zA-Z0-9\.-]/;
// map DOM Elements to their URI attribute
URI.domAttributes = {
'a': 'href',
'blockquote': 'cite',
'link': 'href',
'base': 'href',
'script': 'src',
'form': 'action',
'img': 'src',
'area': 'href',
'iframe': 'src',
'embed': 'src',
'source': 'src',
'track': 'src',
'input': 'src' // but only if type="image"
};
URI.getDomAttribute = function(node) {
if (!node || !node.nodeName) {
return undefined;
}
var nodeName = node.nodeName.toLowerCase();
// <input> should only expose src for type="image"
if (nodeName === 'input' && node.type !== 'image') {
return undefined;
}
return URI.domAttributes[nodeName];
};
function escapeForDumbFirefox36(value) {
// https://github.com/medialize/URI.js/issues/91
return escape(value);
}
// encoding / decoding according to RFC3986
function strictEncodeURIComponent(string) {
// see https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/encodeURIComponent
return encodeURIComponent(string)
.replace(/[!'()*]/g, escapeForDumbFirefox36)
.replace(/\*/g, '%2A');
}
URI.encode = strictEncodeURIComponent;
URI.decode = decodeURIComponent;
URI.iso8859 = function() {
URI.encode = escape;
URI.decode = unescape;
};
URI.unicode = function() {
URI.encode = strictEncodeURIComponent;
URI.decode = decodeURIComponent;
};
URI.characters = {
pathname: {
encode: {
// RFC3986 2.1: For consistency, URI producers and normalizers should
// use uppercase hexadecimal digits for all percent-encodings.
expression: /%(24|26|2B|2C|3B|3D|3A|40)/ig,
map: {
// -._~!'()*
'%24': '$',
'%26': '&',
'%2B': '+',
'%2C': ',',
'%3B': ';',
'%3D': '=',
'%3A': ':',
'%40': '@'
}
},
decode: {
expression: /[\/\?#]/g,
map: {
'/': '%2F',
'?': '%3F',
'#': '%23'
}
}
},
reserved: {
encode: {
// RFC3986 2.1: For consistency, URI producers and normalizers should
// use uppercase hexadecimal digits for all percent-encodings.
expression: /%(21|23|24|26|27|28|29|2A|2B|2C|2F|3A|3B|3D|3F|40|5B|5D)/ig,
map: {
// gen-delims
'%3A': ':',
'%2F': '/',
'%3F': '?',
'%23': '#',
'%5B': '[',
'%5D': ']',
'%40': '@',
// sub-delims
'%21': '!',
'%24': '$',
'%26': '&',
'%27': '\'',
'%28': '(',
'%29': ')',
'%2A': '*',
'%2B': '+',
'%2C': ',',
'%3B': ';',
'%3D': '='
}
}
}
};
URI.encodeQuery = function(string, escapeQuerySpace) {
var escaped = URI.encode(string + '');
if (escapeQuerySpace === undefined) {
escapeQuerySpace = URI.escapeQuerySpace;
}
return escapeQuerySpace ? escaped.replace(/%20/g, '+') : escaped;
};
URI.decodeQuery = function(string, escapeQuerySpace) {
string += '';
if (escapeQuerySpace === undefined) {
escapeQuerySpace = URI.escapeQuerySpace;
}
try {
return URI.decode(escapeQuerySpace ? string.replace(/\+/g, '%20') : string);
} catch(e) {
// we're not going to mess with weird encodings,
// give up and return the undecoded original string
// see https://github.com/medialize/URI.js/issues/87
// see https://github.com/medialize/URI.js/issues/92
return string;
}
};
URI.recodePath = function(string) {
var segments = (string + '').split('/');
for (var i = 0, length = segments.length; i < length; i++) {
segments[i] = URI.encodePathSegment(URI.decode(segments[i]));
}
return segments.join('/');
};
URI.decodePath = function(string) {
var segments = (string + '').split('/');
for (var i = 0, length = segments.length; i < length; i++) {
segments[i] = URI.decodePathSegment(segments[i]);
}
return segments.join('/');
};
// generate encode/decode path functions
var _parts = {'encode':'encode', 'decode':'decode'};
var _part;
var generateAccessor = function(_group, _part) {
return function(string) {
return URI[_part](string + '').replace(URI.characters[_group][_part].expression, function(c) {
return URI.characters[_group][_part].map[c];
});
};
};
for (_part in _parts) {
URI[_part + 'PathSegment'] = generateAccessor('pathname', _parts[_part]);
}
URI.encodeReserved = generateAccessor('reserved', 'encode');
URI.parse = function(string, parts) {
var pos;
if (!parts) {
parts = {};
}
// [protocol"://"[username[":"password]"@"]hostname[":"port]"/"?][path]["?"querystring]["#"fragment]
// extract fragment
pos = string.indexOf('#');
if (pos > -1) {
// escaping?
parts.fragment = string.substring(pos + 1) || null;
string = string.substring(0, pos);
}
// extract query
pos = string.indexOf('?');
if (pos > -1) {
// escaping?
parts.query = string.substring(pos + 1) || null;
string = string.substring(0, pos);
}
// extract protocol
if (string.substring(0, 2) === '//') {
// relative-scheme
parts.protocol = null;
string = string.substring(2);
// extract "user:pass@host:port"
string = URI.parseAuthority(string, parts);
} else {
pos = string.indexOf(':');
if (pos > -1) {
parts.protocol = string.substring(0, pos) || null;
if (parts.protocol && !parts.protocol.match(URI.protocol_expression)) {
// : may be within the path
parts.protocol = undefined;
} else if (parts.protocol === 'file') {
// the file scheme: does not contain an authority
string = string.substring(pos + 3);
} else if (string.substring(pos + 1, pos + 3) === '//') {
string = string.substring(pos + 3);
// extract "user:pass@host:port"
string = URI.parseAuthority(string, parts);
} else {
string = string.substring(pos + 1);
parts.urn = true;
}
}
}
// what's left must be the path
parts.path = string;
// and we're done
return parts;
};
URI.parseHost = function(string, parts) {
// extract host:port
var pos = string.indexOf('/');
var bracketPos;
var t;
if (pos === -1) {
pos = string.length;
}
if (string.charAt(0) === '[') {
// IPv6 host - http://tools.ietf.org/html/draft-ietf-6man-text-addr-representation-04#section-6
// I claim most client software breaks on IPv6 anyways. To simplify things, URI only accepts
// IPv6+port in the format [2001:db8::1]:80 (for the time being)
bracketPos = string.indexOf(']');
parts.hostname = string.substring(1, bracketPos) || null;
parts.port = string.substring(bracketPos + 2, pos) || null;
if (parts.port === '/') {
parts.port = null;
}
} else if (string.indexOf(':') !== string.lastIndexOf(':')) {
// IPv6 host contains multiple colons - but no port
// this notation is actually not allowed by RFC 3986, but we're a liberal parser
parts.hostname = string.substring(0, pos) || null;
parts.port = null;
} else {
t = string.substring(0, pos).split(':');
parts.hostname = t[0] || null;
parts.port = t[1] || null;
}
if (parts.hostname && string.substring(pos).charAt(0) !== '/') {
pos++;
string = '/' + string;
}
return string.substring(pos) || '/';
};
URI.parseAuthority = function(string, parts) {
string = URI.parseUserinfo(string, parts);
return URI.parseHost(string, parts);
};
URI.parseUserinfo = function(string, parts) {
// extract username:password
var firstSlash = string.indexOf('/');
/*jshint laxbreak: true */
var pos = firstSlash > -1
? string.lastIndexOf('@', firstSlash)
: string.indexOf('@');
/*jshint laxbreak: false */
var t;
// authority@ must come before /path
if (pos > -1 && (firstSlash === -1 || pos < firstSlash)) {
t = string.substring(0, pos).split(':');
parts.username = t[0] ? URI.decode(t[0]) : null;
t.shift();
parts.password = t[0] ? URI.decode(t.join(':')) : null;
string = string.substring(pos + 1);
} else {
parts.username = null;
parts.password = null;
}
return string;
};
URI.parseQuery = function(string, escapeQuerySpace) {
if (!string) {
return {};
}
// throw out the funky business - "?"[name"="value"&"]+
string = string.replace(/&+/g, '&').replace(/^\?*&*|&+$/g, '');
if (!string) {
return {};
}
var items = {};
var splits = string.split('&');
var length = splits.length;
var v, name, value;
for (var i = 0; i < length; i++) {
v = splits[i].split('=');
name = URI.decodeQuery(v.shift(), escapeQuerySpace);
// no "=" is null according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#collect-url-parameters
value = v.length ? URI.decodeQuery(v.join('='), escapeQuerySpace) : null;
if (items[name]) {
if (typeof items[name] === 'string') {
items[name] = [items[name]];
}
items[name].push(value);
} else {
items[name] = value;
}
}
return items;
};
URI.build = function(parts) {
var t = '';
if (parts.protocol) {
t += parts.protocol + ':';
}
if (!parts.urn && (t || parts.hostname)) {
t += '//';
}
t += (URI.buildAuthority(parts) || '');
if (typeof parts.path === 'string') {
if (parts.path.charAt(0) !== '/' && typeof parts.hostname === 'string') {
t += '/';
}
t += parts.path;
}
if (typeof parts.query === 'string' && parts.query) {
t += '?' + parts.query;
}
if (typeof parts.fragment === 'string' && parts.fragment) {
t += '#' + parts.fragment;
}
return t;
};
URI.buildHost = function(parts) {
var t = '';
if (!parts.hostname) {
return '';
} else if (URI.ip6_expression.test(parts.hostname)) {
t += '[' + parts.hostname + ']';
} else {
t += parts.hostname;
}
if (parts.port) {
t += ':' + parts.port;
}
return t;
};
URI.buildAuthority = function(parts) {
return URI.buildUserinfo(parts) + URI.buildHost(parts);
};
URI.buildUserinfo = function(parts) {
var t = '';
if (parts.username) {
t += URI.encode(parts.username);
if (parts.password) {
t += ':' + URI.encode(parts.password);
}
t += '@';
}
return t;
};
URI.buildQuery = function(data, duplicateQueryParameters, escapeQuerySpace) {
// according to http://tools.ietf.org/html/rfc3986 or http://labs.apache.org/webarch/uri/rfc/rfc3986.html
// being »-._~!$&'()*+,;=:@/?« %HEX and alnum are allowed
// the RFC explicitly states ?/foo being a valid use case, no mention of parameter syntax!
// URI.js treats the query string as being application/x-www-form-urlencoded
// see http://www.w3.org/TR/REC-html40/interact/forms.html#form-content-type
var t = '';
var unique, key, i, length;
for (key in data) {
if (hasOwn.call(data, key) && key) {
if (isArray(data[key])) {
unique = {};
for (i = 0, length = data[key].length; i < length; i++) {
if (data[key][i] !== undefined && unique[data[key][i] + ''] === undefined) {
t += '&' + URI.buildQueryParameter(key, data[key][i], escapeQuerySpace);
if (duplicateQueryParameters !== true) {
unique[data[key][i] + ''] = true;
}
}
}
} else if (data[key] !== undefined) {
t += '&' + URI.buildQueryParameter(key, data[key], escapeQuerySpace);
}
}
}
return t.substring(1);
};
URI.buildQueryParameter = function(name, value, escapeQuerySpace) {
// http://www.w3.org/TR/REC-html40/interact/forms.html#form-content-type -- application/x-www-form-urlencoded
// don't append "=" for null values, according to http://dvcs.w3.org/hg/url/raw-file/tip/Overview.html#url-parameter-serialization
return URI.encodeQuery(name, escapeQuerySpace) + (value !== null ? '=' + URI.encodeQuery(value, escapeQuerySpace) : '');
};
URI.addQuery = function(data, name, value) {
if (typeof name === 'object') {
for (var key in name) {
if (hasOwn.call(name, key)) {
URI.addQuery(data, key, name[key]);
}
}
} else if (typeof name === 'string') {
if (data[name] === undefined) {
data[name] = value;
return;
} else if (typeof data[name] === 'string') {
data[name] = [data[name]];
}
if (!isArray(value)) {
value = [value];
}
data[name] = data[name].concat(value);
} else {
throw new TypeError('URI.addQuery() accepts an object, string as the name parameter');
}
};
URI.removeQuery = function(data, name, value) {
var i, length, key;
if (isArray(name)) {
for (i = 0, length = name.length; i < length; i++) {
data[name[i]] = undefined;
}
} else if (typeof name === 'object') {
for (key in name) {
if (hasOwn.call(name, key)) {
URI.removeQuery(data, key, name[key]);
}
}
} else if (typeof name === 'string') {
if (value !== undefined) {
if (data[name] === value) {
data[name] = undefined;
} else if (isArray(data[name])) {
data[name] = filterArrayValues(data[name], value);
}
} else {
data[name] = undefined;
}
} else {
throw new TypeError('URI.addQuery() accepts an object, string as the first parameter');
}
};
URI.hasQuery = function(data, name, value, withinArray) {
if (typeof name === 'object') {
for (var key in name) {
if (hasOwn.call(name, key)) {
if (!URI.hasQuery(data, key, name[key])) {
return false;
}
}
}
return true;
} else if (typeof name !== 'string') {
throw new TypeError('URI.hasQuery() accepts an object, string as the name parameter');
}
switch (getType(value)) {
case 'Undefined':
// true if exists (but may be empty)
return name in data; // data[name] !== undefined;
case 'Boolean':
// true if exists and non-empty
var _booly = Boolean(isArray(data[name]) ? data[name].length : data[name]);
return value === _booly;
case 'Function':
// allow complex comparison
return !!value(data[name], name, data);
case 'Array':
if (!isArray(data[name])) {
return false;
}
var op = withinArray ? arrayContains : arraysEqual;
return op(data[name], value);
case 'RegExp':
if (!isArray(data[name])) {
return Boolean(data[name] && data[name].match(value));
}
if (!withinArray) {
return false;
}
return arrayContains(data[name], value);
case 'Number':
value = String(value);
/* falls through */
case 'String':
if (!isArray(data[name])) {
return data[name] === value;
}
if (!withinArray) {
return false;
}
return arrayContains(data[name], value);
default:
throw new TypeError('URI.hasQuery() accepts undefined, boolean, string, number, RegExp, Function as the value parameter');
}
};
URI.commonPath = function(one, two) {
var length = Math.min(one.length, two.length);
var pos;
// find first non-matching character
for (pos = 0; pos < length; pos++) {
if (one.charAt(pos) !== two.charAt(pos)) {
pos--;
break;
}
}
if (pos < 1) {
return one.charAt(0) === two.charAt(0) && one.charAt(0) === '/' ? '/' : '';
}
// revert to last /
if (one.charAt(pos) !== '/' || two.charAt(pos) !== '/') {
pos = one.substring(0, pos).lastIndexOf('/');
}
return one.substring(0, pos + 1);
};
URI.withinString = function(string, callback, options) {
options || (options = {});
var _start = options.start || URI.findUri.start;
var _end = options.end || URI.findUri.end;
var _trim = options.trim || URI.findUri.trim;
var _attributeOpen = /[a-z0-9-]=["']?$/i;
_start.lastIndex = 0;
while (true) {
var match = _start.exec(string);
if (!match) {
break;
}
var start = match.index;
if (options.ignoreHtml) {
// attribut(e=["']?$)
var attributeOpen = string.slice(Math.max(start - 3, 0), start);
if (attributeOpen && _attributeOpen.test(attributeOpen)) {
continue;
}
}
var end = start + string.slice(start).search(_end);
var slice = string.slice(start, end).replace(_trim, '');
if (options.ignore && options.ignore.test(slice)) {
continue;
}
end = start + slice.length;
var result = callback(slice, start, end, string);
string = string.slice(0, start) + result + string.slice(end);
_start.lastIndex = start + result.length;
}
_start.lastIndex = 0;
return string;
};
URI.ensureValidHostname = function(v) {
// Theoretically URIs allow percent-encoding in Hostnames (according to RFC 3986)
// they are not part of DNS and therefore ignored by URI.js
if (v.match(URI.invalid_hostname_characters)) {
// test punycode
if (!punycode) {
throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-] and Punycode.js is not available');
}
if (punycode.toASCII(v).match(URI.invalid_hostname_characters)) {
throw new TypeError('Hostname "' + v + '" contains characters other than [A-Z0-9.-]');
}
}
};
// noConflict
URI.noConflict = function(removeAll) {
if (removeAll) {
var unconflicted = {
URI: this.noConflict()
};
if (root.URITemplate && typeof root.URITemplate.noConflict === 'function') {
unconflicted.URITemplate = root.URITemplate.noConflict();
}
if (root.IPv6 && typeof root.IPv6.noConflict === 'function') {
unconflicted.IPv6 = root.IPv6.noConflict();
}
if (root.SecondLevelDomains && typeof root.SecondLevelDomains.noConflict === 'function') {
unconflicted.SecondLevelDomains = root.SecondLevelDomains.noConflict();
}
return unconflicted;
} else if (root.URI === this) {
root.URI = _URI;
}
return this;
};
p.build = function(deferBuild) {
if (deferBuild === true) {
this._deferred_build = true;
} else if (deferBuild === undefined || this._deferred_build) {
this._string = URI.build(this._parts);
this._deferred_build = false;
}
return this;
};
p.clone = function() {
return new URI(this);
};
p.valueOf = p.toString = function() {
return this.build(false)._string;
};
// generate simple accessors
_parts = {protocol: 'protocol', username: 'username', password: 'password', hostname: 'hostname', port: 'port'};
generateAccessor = function(_part){
return function(v, build) {
if (v === undefined) {
return this._parts[_part] || '';
} else {
this._parts[_part] = v || null;
this.build(!build);
return this;
}
};
};
for (_part in _parts) {
p[_part] = generateAccessor(_parts[_part]);
}
// generate accessors with optionally prefixed input
_parts = {query: '?', fragment: '#'};
generateAccessor = function(_part, _key){
return function(v, build) {
if (v === undefined) {
return this._parts[_part] || '';
} else {
if (v !== null) {
v = v + '';
if (v.charAt(0) === _key) {
v = v.substring(1);
}
}
this._parts[_part] = v;
this.build(!build);
return this;
}
};
};
for (_part in _parts) {
p[_part] = generateAccessor(_part, _parts[_part]);
}
// generate accessors with prefixed output
_parts = {search: ['?', 'query'], hash: ['#', 'fragment']};
generateAccessor = function(_part, _key){
return function(v, build) {
var t = this[_part](v, build);
return typeof t === 'string' && t.length ? (_key + t) : t;
};
};
for (_part in _parts) {
p[_part] = generateAccessor(_parts[_part][1], _parts[_part][0]);
}
p.pathname = function(v, build) {
if (v === undefined || v === true) {
var res = this._parts.path || (this._parts.hostname ? '/' : '');
return v ? URI.decodePath(res) : res;
} else {
this._parts.path = v ? URI.recodePath(v) : '/';
this.build(!build);
return this;
}
};
p.path = p.pathname;
p.href = function(href, build) {
var key;
if (href === undefined) {
return this.toString();
}
this._string = '';
this._parts = URI._parts();
var _URI = href instanceof URI;
var _object = typeof href === 'object' && (href.hostname || href.path || href.pathname);
if (href.nodeName) {
var attribute = URI.getDomAttribute(href);
href = href[attribute] || '';
_object = false;
}
// window.location is reported to be an object, but it's not the sort
// of object we're looking for:
// * location.protocol ends with a colon
// * location.query != object.search
// * location.hash != object.fragment
// simply serializing the unknown object should do the trick
// (for location, not for everything...)
if (!_URI && _object && href.pathname !== undefined) {
href = href.toString();
}
if (typeof href === 'string') {
this._parts = URI.parse(href, this._parts);
} else if (_URI || _object) {
var src = _URI ? href._parts : href;
for (key in src) {
if (hasOwn.call(this._parts, key)) {
this._parts[key] = src[key];
}
}
} else {
throw new TypeError('invalid input');
}
this.build(!build);
return this;
};
// identification accessors
p.is = function(what) {
var ip = false;
var ip4 = false;
var ip6 = false;
var name = false;
var sld = false;
var idn = false;
var punycode = false;
var relative = !this._parts.urn;
if (this._parts.hostname) {
relative = false;
ip4 = URI.ip4_expression.test(this._parts.hostname);
ip6 = URI.ip6_expression.test(this._parts.hostname);
ip = ip4 || ip6;
name = !ip;
sld = name && SLD && SLD.has(this._parts.hostname);
idn = name && URI.idn_expression.test(this._parts.hostname);
punycode = name && URI.punycode_expression.test(this._parts.hostname);
}
switch (what.toLowerCase()) {
case 'relative':
return relative;
case 'absolute':
return !relative;
// hostname identification
case 'domain':
case 'name':
return name;
case 'sld':
return sld;
case 'ip':
return ip;
case 'ip4':
case 'ipv4':
case 'inet4':
return ip4;
case 'ip6':
case 'ipv6':
case 'inet6':
return ip6;
case 'idn':
return idn;
case 'url':
return !this._parts.urn;
case 'urn':
return !!this._parts.urn;
case 'punycode':
return punycode;
}
return null;
};
// component specific input validation
var _protocol = p.protocol;
var _port = p.port;
var _hostname = p.hostname;
p.protocol = function(v, build) {
if (v !== undefined) {
if (v) {
// accept trailing ://
v = v.replace(/:(\/\/)?$/, '');
if (!v.match(URI.protocol_expression)) {
throw new TypeError('Protocol "' + v + '" contains characters other than [A-Z0-9.+-] or doesn\'t start with [A-Z]');
}
}
}
return _protocol.call(this, v, build);
};
p.scheme = p.protocol;
p.port = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v !== undefined) {
if (v === 0) {
v = null;
}
if (v) {
v += '';
if (v.charAt(0) === ':') {
v = v.substring(1);
}
if (v.match(/[^0-9]/)) {
throw new TypeError('Port "' + v + '" contains characters other than [0-9]');
}
}
}
return _port.call(this, v, build);
};
p.hostname = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v !== undefined) {
var x = {};
URI.parseHost(v, x);
v = x.hostname;
}
return _hostname.call(this, v, build);
};
// compound accessors
p.host = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined) {
return this._parts.hostname ? URI.buildHost(this._parts) : '';
} else {
URI.parseHost(v, this._parts);
this.build(!build);
return this;
}
};
p.authority = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined) {
return this._parts.hostname ? URI.buildAuthority(this._parts) : '';
} else {
URI.parseAuthority(v, this._parts);
this.build(!build);
return this;
}
};
p.userinfo = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined) {
if (!this._parts.username) {
return '';
}
var t = URI.buildUserinfo(this._parts);
return t.substring(0, t.length -1);
} else {
if (v[v.length-1] !== '@') {
v += '@';
}
URI.parseUserinfo(v, this._parts);
this.build(!build);
return this;
}
};
p.resource = function(v, build) {
var parts;
if (v === undefined) {
return this.path() + this.search() + this.hash();
}
parts = URI.parse(v);
this._parts.path = parts.path;
this._parts.query = parts.query;
this._parts.fragment = parts.fragment;
this.build(!build);
return this;
};
// fraction accessors
p.subdomain = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
// convenience, return "www" from "www.example.org"
if (v === undefined) {
if (!this._parts.hostname || this.is('IP')) {
return '';
}
// grab domain and add another segment
var end = this._parts.hostname.length - this.domain().length - 1;
return this._parts.hostname.substring(0, end) || '';
} else {
var e = this._parts.hostname.length - this.domain().length;
var sub = this._parts.hostname.substring(0, e);
var replace = new RegExp('^' + escapeRegEx(sub));
if (v && v.charAt(v.length - 1) !== '.') {
v += '.';
}
if (v) {
URI.ensureValidHostname(v);
}
this._parts.hostname = this._parts.hostname.replace(replace, v);
this.build(!build);
return this;
}
};
p.domain = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (typeof v === 'boolean') {
build = v;
v = undefined;
}
// convenience, return "example.org" from "www.example.org"
if (v === undefined) {
if (!this._parts.hostname || this.is('IP')) {
return '';
}
// if hostname consists of 1 or 2 segments, it must be the domain
var t = this._parts.hostname.match(/\./g);
if (t && t.length < 2) {
return this._parts.hostname;
}
// grab tld and add another segment
var end = this._parts.hostname.length - this.tld(build).length - 1;
end = this._parts.hostname.lastIndexOf('.', end -1) + 1;
return this._parts.hostname.substring(end) || '';
} else {
if (!v) {
throw new TypeError('cannot set domain empty');
}
URI.ensureValidHostname(v);
if (!this._parts.hostname || this.is('IP')) {
this._parts.hostname = v;
} else {
var replace = new RegExp(escapeRegEx(this.domain()) + '$');
this._parts.hostname = this._parts.hostname.replace(replace, v);
}
this.build(!build);
return this;
}
};
p.tld = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (typeof v === 'boolean') {
build = v;
v = undefined;
}
// return "org" from "www.example.org"
if (v === undefined) {
if (!this._parts.hostname || this.is('IP')) {
return '';
}
var pos = this._parts.hostname.lastIndexOf('.');
var tld = this._parts.hostname.substring(pos + 1);
if (build !== true && SLD && SLD.list[tld.toLowerCase()]) {
return SLD.get(this._parts.hostname) || tld;
}
return tld;
} else {
var replace;
if (!v) {
throw new TypeError('cannot set TLD empty');
} else if (v.match(/[^a-zA-Z0-9-]/)) {
if (SLD && SLD.is(v)) {
replace = new RegExp(escapeRegEx(this.tld()) + '$');
this._parts.hostname = this._parts.hostname.replace(replace, v);
} else {
throw new TypeError('TLD "' + v + '" contains characters other than [A-Z0-9]');
}
} else if (!this._parts.hostname || this.is('IP')) {
throw new ReferenceError('cannot set TLD on non-domain host');
} else {
replace = new RegExp(escapeRegEx(this.tld()) + '$');
this._parts.hostname = this._parts.hostname.replace(replace, v);
}
this.build(!build);
return this;
}
};
p.directory = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined || v === true) {
if (!this._parts.path && !this._parts.hostname) {
return '';
}
if (this._parts.path === '/') {
return '/';
}
var end = this._parts.path.length - this.filename().length - 1;
var res = this._parts.path.substring(0, end) || (this._parts.hostname ? '/' : '');
return v ? URI.decodePath(res) : res;
} else {
var e = this._parts.path.length - this.filename().length;
var directory = this._parts.path.substring(0, e);
var replace = new RegExp('^' + escapeRegEx(directory));
// fully qualifier directories begin with a slash
if (!this.is('relative')) {
if (!v) {
v = '/';
}
if (v.charAt(0) !== '/') {
v = '/' + v;
}
}
// directories always end with a slash
if (v && v.charAt(v.length - 1) !== '/') {
v += '/';
}
v = URI.recodePath(v);
this._parts.path = this._parts.path.replace(replace, v);
this.build(!build);
return this;
}
};
p.filename = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined || v === true) {
if (!this._parts.path || this._parts.path === '/') {
return '';
}
var pos = this._parts.path.lastIndexOf('/');
var res = this._parts.path.substring(pos+1);
return v ? URI.decodePathSegment(res) : res;
} else {
var mutatedDirectory = false;
if (v.charAt(0) === '/') {
v = v.substring(1);
}
if (v.match(/\.?\//)) {
mutatedDirectory = true;
}
var replace = new RegExp(escapeRegEx(this.filename()) + '$');
v = URI.recodePath(v);
this._parts.path = this._parts.path.replace(replace, v);
if (mutatedDirectory) {
this.normalizePath(build);
} else {
this.build(!build);
}
return this;
}
};
p.suffix = function(v, build) {
if (this._parts.urn) {
return v === undefined ? '' : this;
}
if (v === undefined || v === true) {
if (!this._parts.path || this._parts.path === '/') {
return '';
}
var filename = this.filename();
var pos = filename.lastIndexOf('.');
var s, res;
if (pos === -1) {
return '';
}
// suffix may only contain alnum characters (yup, I made this up.)
s = filename.substring(pos+1);
res = (/^[a-z0-9%]+$/i).test(s) ? s : '';
return v ? URI.decodePathSegment(res) : res;
} else {
if (v.charAt(0) === '.') {
v = v.substring(1);
}
var suffix = this.suffix();
var replace;
if (!suffix) {
if (!v) {
return this;
}
this._parts.path += '.' + URI.recodePath(v);
} else if (!v) {
replace = new RegExp(escapeRegEx('.' + suffix) + '$');
} else {
replace = new RegExp(escapeRegEx(suffix) + '$');
}
if (replace) {
v = URI.recodePath(v);
this._parts.path = this._parts.path.replace(replace, v);
}
this.build(!build);
return this;
}
};
p.segment = function(segment, v, build) {
var separator = this._parts.urn ? ':' : '/';
var path = this.path();
var absolute = path.substring(0, 1) === '/';
var segments = path.split(separator);
if (segment !== undefined && typeof segment !== 'number') {
build = v;
v = segment;
segment = undefined;
}
if (segment !== undefined && typeof segment !== 'number') {
throw new Error('Bad segment "' + segment + '", must be 0-based integer');
}
if (absolute) {
segments.shift();
}
if (segment < 0) {
// allow negative indexes to address from the end
segment = Math.max(segments.length + segment, 0);
}
if (v === undefined) {
/*jshint laxbreak: true */
return segment === undefined
? segments
: segments[segment];
/*jshint laxbreak: false */
} else if (segment === null || segments[segment] === undefined) {
if (isArray(v)) {
segments = [];
// collapse empty elements within array
for (var i=0, l=v.length; i < l; i++) {
if (!v[i].length && (!segments.length || !segments[segments.length -1].length)) {
continue;
}
if (segments.length && !segments[segments.length -1].length) {
segments.pop();
}
segments.push(v[i]);
}
} else if (v || (typeof v === 'string')) {
if (segments[segments.length -1] === '') {
// empty trailing elements have to be overwritten
// to prevent results such as /foo//bar
segments[segments.length -1] = v;
} else {
segments.push(v);
}
}
} else {
if (v || (typeof v === 'string' && v.length)) {
segments[segment] = v;
} else {
segments.splice(segment, 1);
}
}
if (absolute) {
segments.unshift('');
}
return this.path(segments.join(separator), build);
};
p.segmentCoded = function(segment, v, build) {
var segments, i, l;
if (typeof segment !== 'number') {
build = v;
v = segment;
segment = undefined;
}
if (v === undefined) {
segments = this.segment(segment, v, build);
if (!isArray(segments)) {
segments = segments !== undefined ? URI.decode(segments) : undefined;
} else {
for (i = 0, l = segments.length; i < l; i++) {
segments[i] = URI.decode(segments[i]);
}
}
return segments;
}
if (!isArray(v)) {
v = typeof v === 'string' ? URI.encode(v) : v;
} else {
for (i = 0, l = v.length; i < l; i++) {
v[i] = URI.decode(v[i]);
}
}
return this.segment(segment, v, build);
};
// mutating query string
var q = p.query;
p.query = function(v, build) {
if (v === true) {
return URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
} else if (typeof v === 'function') {
var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
var result = v.call(this, data);
this._parts.query = URI.buildQuery(result || data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
this.build(!build);
return this;
} else if (v !== undefined && typeof v !== 'string') {
this._parts.query = URI.buildQuery(v, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
this.build(!build);
return this;
} else {
return q.call(this, v, build);
}
};
p.setQuery = function(name, value, build) {
var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
if (typeof name === 'object') {
for (var key in name) {
if (hasOwn.call(name, key)) {
data[key] = name[key];
}
}
} else if (typeof name === 'string') {
data[name] = value !== undefined ? value : null;
} else {
throw new TypeError('URI.addQuery() accepts an object, string as the name parameter');
}
this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
if (typeof name !== 'string') {
build = value;
}
this.build(!build);
return this;
};
p.addQuery = function(name, value, build) {
var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
URI.addQuery(data, name, value === undefined ? null : value);
this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
if (typeof name !== 'string') {
build = value;
}
this.build(!build);
return this;
};
p.removeQuery = function(name, value, build) {
var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
URI.removeQuery(data, name, value);
this._parts.query = URI.buildQuery(data, this._parts.duplicateQueryParameters, this._parts.escapeQuerySpace);
if (typeof name !== 'string') {
build = value;
}
this.build(!build);
return this;
};
p.hasQuery = function(name, value, withinArray) {
var data = URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace);
return URI.hasQuery(data, name, value, withinArray);
};
p.setSearch = p.setQuery;
p.addSearch = p.addQuery;
p.removeSearch = p.removeQuery;
p.hasSearch = p.hasQuery;
// sanitizing URLs
p.normalize = function() {
if (this._parts.urn) {
return this
.normalizeProtocol(false)
.normalizeQuery(false)
.normalizeFragment(false)
.build();
}
return this
.normalizeProtocol(false)
.normalizeHostname(false)
.normalizePort(false)
.normalizePath(false)
.normalizeQuery(false)
.normalizeFragment(false)
.build();
};
p.normalizeProtocol = function(build) {
if (typeof this._parts.protocol === 'string') {
this._parts.protocol = this._parts.protocol.toLowerCase();
this.build(!build);
}
return this;
};
p.normalizeHostname = function(build) {
if (this._parts.hostname) {
if (this.is('IDN') && punycode) {
this._parts.hostname = punycode.toASCII(this._parts.hostname);
} else if (this.is('IPv6') && IPv6) {
this._parts.hostname = IPv6.best(this._parts.hostname);
}
this._parts.hostname = this._parts.hostname.toLowerCase();
this.build(!build);
}
return this;
};
p.normalizePort = function(build) {
// remove port of it's the protocol's default
if (typeof this._parts.protocol === 'string' && this._parts.port === URI.defaultPorts[this._parts.protocol]) {
this._parts.port = null;
this.build(!build);
}
return this;
};
p.normalizePath = function(build) {
if (this._parts.urn) {
return this;
}
if (!this._parts.path || this._parts.path === '/') {
return this;
}
var _was_relative;
var _path = this._parts.path;
var _leadingParents = '';
var _parent, _pos;
// handle relative paths
if (_path.charAt(0) !== '/') {
_was_relative = true;
_path = '/' + _path;
}
// resolve simples
_path = _path
.replace(/(\/(\.\/)+)|(\/\.$)/g, '/')
.replace(/\/{2,}/g, '/');
// remember leading parents
if (_was_relative) {
_leadingParents = _path.substring(1).match(/^(\.\.\/)+/) || '';
if (_leadingParents) {
_leadingParents = _leadingParents[0];
}
}
// resolve parents
while (true) {
_parent = _path.indexOf('/..');
if (_parent === -1) {
// no more ../ to resolve
break;
} else if (_parent === 0) {
// top level cannot be relative, skip it
_path = _path.substring(3);
continue;
}
_pos = _path.substring(0, _parent).lastIndexOf('/');
if (_pos === -1) {
_pos = _parent;
}
_path = _path.substring(0, _pos) + _path.substring(_parent + 3);
}
// revert to relative
if (_was_relative && this.is('relative')) {
_path = _leadingParents + _path.substring(1);
}
_path = URI.recodePath(_path);
this._parts.path = _path;
this.build(!build);
return this;
};
p.normalizePathname = p.normalizePath;
p.normalizeQuery = function(build) {
if (typeof this._parts.query === 'string') {
if (!this._parts.query.length) {
this._parts.query = null;
} else {
this.query(URI.parseQuery(this._parts.query, this._parts.escapeQuerySpace));
}
this.build(!build);
}
return this;
};
p.normalizeFragment = function(build) {
if (!this._parts.fragment) {
this._parts.fragment = null;
this.build(!build);
}
return this;
};
p.normalizeSearch = p.normalizeQuery;
p.normalizeHash = p.normalizeFragment;
p.iso8859 = function() {
// expect unicode input, iso8859 output
var e = URI.encode;
var d = URI.decode;
URI.encode = escape;
URI.decode = decodeURIComponent;
this.normalize();
URI.encode = e;
URI.decode = d;
return this;
};
p.unicode = function() {
// expect iso8859 input, unicode output
var e = URI.encode;
var d = URI.decode;
URI.encode = strictEncodeURIComponent;
URI.decode = unescape;
this.normalize();
URI.encode = e;
URI.decode = d;
return this;
};
p.readable = function() {
var uri = this.clone();
// removing username, password, because they shouldn't be displayed according to RFC 3986
uri.username('').password('').normalize();
var t = '';
if (uri._parts.protocol) {
t += uri._parts.protocol + '://';
}
if (uri._parts.hostname) {
if (uri.is('punycode') && punycode) {
t += punycode.toUnicode(uri._parts.hostname);
if (uri._parts.port) {
t += ':' + uri._parts.port;
}
} else {
t += uri.host();
}
}
if (uri._parts.hostname && uri._parts.path && uri._parts.path.charAt(0) !== '/') {
t += '/';
}
t += uri.path(true);
if (uri._parts.query) {
var q = '';
for (var i = 0, qp = uri._parts.query.split('&'), l = qp.length; i < l; i++) {
var kv = (qp[i] || '').split('=');
q += '&' + URI.decodeQuery(kv[0], this._parts.escapeQuerySpace)
.replace(/&/g, '%26');
if (kv[1] !== undefined) {
q += '=' + URI.decodeQuery(kv[1], this._parts.escapeQuerySpace)
.replace(/&/g, '%26');
}
}
t += '?' + q.substring(1);
}
t += URI.decodeQuery(uri.hash(), true);
return t;
};
// resolving relative and absolute URLs
p.absoluteTo = function(base) {
var resolved = this.clone();
var properties = ['protocol', 'username', 'password', 'hostname', 'port'];
var basedir, i, p;
if (this._parts.urn) {
throw new Error('URNs do not have any generally defined hierarchical components');
}
if (!(base instanceof URI)) {
base = new URI(base);
}
if (!resolved._parts.protocol) {
resolved._parts.protocol = base._parts.protocol;
}
if (this._parts.hostname) {
return resolved;
}
for (i = 0; (p = properties[i]); i++) {
resolved._parts[p] = base._parts[p];
}
if (!resolved._parts.path) {
resolved._parts.path = base._parts.path;
if (!resolved._parts.query) {
resolved._parts.query = base._parts.query;
}
} else if (resolved._parts.path.substring(-2) === '..') {
resolved._parts.path += '/';
}
if (resolved.path().charAt(0) !== '/') {
basedir = base.directory();
resolved._parts.path = (basedir ? (basedir + '/') : '') + resolved._parts.path;
resolved.normalizePath();
}
resolved.build();
return resolved;
};
p.relativeTo = function(base) {
var relative = this.clone().normalize();
var relativeParts, baseParts, common, relativePath, basePath;
if (relative._parts.urn) {
throw new Error('URNs do not have any generally defined hierarchical components');
}
base = new URI(base).normalize();
relativeParts = relative._parts;
baseParts = base._parts;
relativePath = relative.path();
basePath = base.path();
if (relativePath.charAt(0) !== '/') {
throw new Error('URI is already relative');
}
if (basePath.charAt(0) !== '/') {
throw new Error('Cannot calculate a URI relative to another relative URI');
}
if (relativeParts.protocol === baseParts.protocol) {
relativeParts.protocol = null;
}
if (relativeParts.username !== baseParts.username || relativeParts.password !== baseParts.password) {
return relative.build();
}
if (relativeParts.protocol !== null || relativeParts.username !== null || relativeParts.password !== null) {
return relative.build();
}
if (relativeParts.hostname === baseParts.hostname && relativeParts.port === baseParts.port) {
relativeParts.hostname = null;
relativeParts.port = null;
} else {
return relative.build();
}
if (relativePath === basePath) {
relativeParts.path = '';
return relative.build();
}
// determine common sub path
common = URI.commonPath(relative.path(), base.path());
// If the paths have nothing in common, return a relative URL with the absolute path.
if (!common) {
return relative.build();
}
var parents = baseParts.path
.substring(common.length)
.replace(/[^\/]*$/, '')
.replace(/.*?\//g, '../');
relativeParts.path = parents + relativeParts.path.substring(common.length);
return relative.build();
};
// comparing URIs
p.equals = function(uri) {
var one = this.clone();
var two = new URI(uri);
var one_map = {};
var two_map = {};
var checked = {};
var one_query, two_query, key;
one.normalize();
two.normalize();
// exact match
if (one.toString() === two.toString()) {
return true;
}
// extract query string
one_query = one.query();
two_query = two.query();
one.query('');
two.query('');
// definitely not equal if not even non-query parts match
if (one.toString() !== two.toString()) {
return false;
}
// query parameters have the same length, even if they're permuted
if (one_query.length !== two_query.length) {
return false;
}
one_map = URI.parseQuery(one_query, this._parts.escapeQuerySpace);
two_map = URI.parseQuery(two_query, this._parts.escapeQuerySpace);
for (key in one_map) {
if (hasOwn.call(one_map, key)) {
if (!isArray(one_map[key])) {
if (one_map[key] !== two_map[key]) {
return false;
}
} else if (!arraysEqual(one_map[key], two_map[key])) {
return false;
}
checked[key] = true;
}
}
for (key in two_map) {
if (hasOwn.call(two_map, key)) {
if (!checked[key]) {
// two contains a parameter not present in one
return false;
}
}
}
return true;
};
// state
p.duplicateQueryParameters = function(v) {
this._parts.duplicateQueryParameters = !!v;
return this;
};
p.escapeQuerySpace = function(v) {
this._parts.escapeQuerySpace = !!v;
return this;
};
return URI;
}));