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/**
* URI.js
*
* @fileoverview An RFC 3986 compliant, scheme extendable URI parsing/validating/resolving library for JavaScript.
* @author <a href="mailto:gary.court@gmail.com">Gary Court</a>
* @see http://github.com/garycourt/uri-js
*/
/**
* Copyright 2011 Gary Court. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY GARY COURT ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARY COURT OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those of the
* authors and should not be interpreted as representing official policies, either expressed
* or implied, of Gary Court.
*/
import URI_PROTOCOL from "./regexps-uri";
import IRI_PROTOCOL from "./regexps-iri";
import punycode from "punycode";
import { toUpperCase, typeOf, assign } from "./util";
export const SCHEMES = {};
export function pctEncChar(chr) {
const c = chr.charCodeAt(0);
let e;
if (c < 16)
e = "%0" + c.toString(16).toUpperCase();
else if (c < 128)
e = "%" + c.toString(16).toUpperCase();
else if (c < 2048)
e = "%" + ((c >> 6) | 192).toString(16).toUpperCase() + "%" + ((c & 63) | 128).toString(16).toUpperCase();
else
e = "%" + ((c >> 12) | 224).toString(16).toUpperCase() + "%" + (((c >> 6) & 63) | 128).toString(16).toUpperCase() + "%" + ((c & 63) | 128).toString(16).toUpperCase();
return e;
}
export function pctDecChars(str) {
let newStr = "";
let i = 0;
const il = str.length;
while (i < il) {
const c = parseInt(str.substr(i + 1, 2), 16);
if (c < 128) {
newStr += String.fromCharCode(c);
i += 3;
}
else if (c >= 194 && c < 224) {
if ((il - i) >= 6) {
const c2 = parseInt(str.substr(i + 4, 2), 16);
newStr += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
}
else {
newStr += str.substr(i, 6);
}
i += 6;
}
else if (c >= 224) {
if ((il - i) >= 9) {
const c2 = parseInt(str.substr(i + 4, 2), 16);
const c3 = parseInt(str.substr(i + 7, 2), 16);
newStr += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
}
else {
newStr += str.substr(i, 9);
}
i += 9;
}
else {
newStr += str.substr(i, 3);
i += 3;
}
}
return newStr;
}
function _normalizeComponentEncoding(components, protocol) {
function decodeUnreserved(str) {
const decStr = pctDecChars(str);
return (!decStr.match(protocol.UNRESERVED) ? str : decStr);
}
if (components.scheme)
components.scheme = String(components.scheme).replace(protocol.PCT_ENCODED, decodeUnreserved).toLowerCase().replace(protocol.NOT_SCHEME, "");
if (components.userinfo !== undefined)
components.userinfo = String(components.userinfo).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_USERINFO, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
if (components.host !== undefined)
components.host = String(components.host).replace(protocol.PCT_ENCODED, decodeUnreserved).toLowerCase().replace(protocol.NOT_HOST, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
if (components.path !== undefined)
components.path = String(components.path).replace(protocol.PCT_ENCODED, decodeUnreserved).replace((components.scheme ? protocol.NOT_PATH : protocol.NOT_PATH_NOSCHEME), pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
if (components.query !== undefined)
components.query = String(components.query).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_QUERY, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
if (components.fragment !== undefined)
components.fragment = String(components.fragment).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_FRAGMENT, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
return components;
}
;
function _stripLeadingZeros(str) {
return str.replace(/^0*(.*)/, "$1") || "0";
}
function _normalizeIPv4(host, protocol) {
const matches = host.match(protocol.IPV4ADDRESS) || [];
const [, address] = matches;
if (address) {
return address.split(".").map(_stripLeadingZeros).join(".");
}
else {
return host;
}
}
function _normalizeIPv6(host, protocol) {
const matches = host.match(protocol.IPV6ADDRESS) || [];
const [, address, zone] = matches;
if (address) {
const [last, first] = address.toLowerCase().split('::').reverse();
const firstFields = first ? first.split(":").map(_stripLeadingZeros) : [];
const lastFields = last.split(":").map(_stripLeadingZeros);
const isLastFieldIPv4Address = protocol.IPV4ADDRESS.test(lastFields[lastFields.length - 1]);
const fieldCount = isLastFieldIPv4Address ? 7 : 8;
const lastFieldsStart = lastFields.length - fieldCount;
const fields = Array(fieldCount);
for (let x = 0; x < fieldCount; ++x) {
fields[x] = firstFields[x] || lastFields[lastFieldsStart + x] || '';
}
if (isLastFieldIPv4Address) {
fields[fieldCount - 1] = _normalizeIPv4(fields[fieldCount - 1], protocol);
}
const allZeroFields = fields.reduce((acc, field, index) => {
if (!field || field === "0") {
const lastLongest = acc[acc.length - 1];
if (lastLongest && lastLongest.index + lastLongest.length === index) {
lastLongest.length++;
}
else {
acc.push({ index, length: 1 });
}
}
return acc;
}, []);
const longestZeroFields = allZeroFields.sort((a, b) => b.length - a.length)[0];
let newHost;
if (longestZeroFields && longestZeroFields.length > 1) {
const newFirst = fields.slice(0, longestZeroFields.index);
const newLast = fields.slice(longestZeroFields.index + longestZeroFields.length);
newHost = newFirst.join(":") + "::" + newLast.join(":");
}
else {
newHost = fields.join(":");
}
if (zone) {
newHost += "%" + zone;
}
return newHost;
}
else {
return host;
}
}
const URI_PARSE = /^(?:([^:\/?#]+):)?(?:\/\/((?:([^\/?#@]*)@)?(\[[^\/?#\]]+\]|[^\/?#:]*)(?:\:(\d*))?))?([^?#]*)(?:\?([^#]*))?(?:#((?:.|\n|\r)*))?/i;
const NO_MATCH_IS_UNDEFINED = ("").match(/(){0}/)[1] === undefined;
export function parse(uriString, options = {}) {
const components = {};
const protocol = (options.iri !== false ? IRI_PROTOCOL : URI_PROTOCOL);
if (options.reference === "suffix")
uriString = (options.scheme ? options.scheme + ":" : "") + "//" + uriString;
const matches = uriString.match(URI_PARSE);
if (matches) {
if (NO_MATCH_IS_UNDEFINED) {
//store each component
components.scheme = matches[1];
components.userinfo = matches[3];
components.host = matches[4];
components.port = parseInt(matches[5], 10);
components.path = matches[6] || "";
components.query = matches[7];
components.fragment = matches[8];
//fix port number
if (isNaN(components.port)) {
components.port = matches[5];
}
}
else { //IE FIX for improper RegExp matching
//store each component
components.scheme = matches[1] || undefined;
components.userinfo = (uriString.indexOf("@") !== -1 ? matches[3] : undefined);
components.host = (uriString.indexOf("//") !== -1 ? matches[4] : undefined);
components.port = parseInt(matches[5], 10);
components.path = matches[6] || "";
components.query = (uriString.indexOf("?") !== -1 ? matches[7] : undefined);
components.fragment = (uriString.indexOf("#") !== -1 ? matches[8] : undefined);
//fix port number
if (isNaN(components.port)) {
components.port = (uriString.match(/\/\/(?:.|\n)*\:(?:\/|\?|\#|$)/) ? matches[4] : undefined);
}
}
if (components.host) {
//normalize IP hosts
components.host = _normalizeIPv6(_normalizeIPv4(components.host, protocol), protocol);
}
//determine reference type
if (components.scheme === undefined && components.userinfo === undefined && components.host === undefined && components.port === undefined && !components.path && components.query === undefined) {
components.reference = "same-document";
}
else if (components.scheme === undefined) {
components.reference = "relative";
}
else if (components.fragment === undefined) {
components.reference = "absolute";
}
else {
components.reference = "uri";
}
//check for reference errors
if (options.reference && options.reference !== "suffix" && options.reference !== components.reference) {
components.error = components.error || "URI is not a " + options.reference + " reference.";
}
//find scheme handler
const schemeHandler = SCHEMES[(options.scheme || components.scheme || "").toLowerCase()];
//check if scheme can't handle IRIs
if (!options.unicodeSupport && (!schemeHandler || !schemeHandler.unicodeSupport)) {
//if host component is a domain name
if (components.host && (options.domainHost || (schemeHandler && schemeHandler.domainHost))) {
//convert Unicode IDN -> ASCII IDN
try {
components.host = punycode.toASCII(components.host.replace(protocol.PCT_ENCODED, pctDecChars).toLowerCase());
}
catch (e) {
components.error = components.error || "Host's domain name can not be converted to ASCII via punycode: " + e;
}
}
//convert IRI -> URI
_normalizeComponentEncoding(components, URI_PROTOCOL);
}
else {
//normalize encodings
_normalizeComponentEncoding(components, protocol);
}
//perform scheme specific parsing
if (schemeHandler && schemeHandler.parse) {
schemeHandler.parse(components, options);
}
}
else {
components.error = components.error || "URI can not be parsed.";
}
return components;
}
;
function _recomposeAuthority(components, options) {
const protocol = (options.iri !== false ? IRI_PROTOCOL : URI_PROTOCOL);
const uriTokens = [];
if (components.userinfo !== undefined) {
uriTokens.push(components.userinfo);
uriTokens.push("@");
}
if (components.host !== undefined) {
//normalize IP hosts, add brackets and escape zone separator for IPv6
uriTokens.push(_normalizeIPv6(_normalizeIPv4(String(components.host), protocol), protocol).replace(protocol.IPV6ADDRESS, (_, $1, $2) => "[" + $1 + ($2 ? "%25" + $2 : "") + "]"));
}
if (typeof components.port === "number" || typeof components.port === "string") {
uriTokens.push(":");
uriTokens.push(String(components.port));
}
return uriTokens.length ? uriTokens.join("") : undefined;
}
;
const RDS1 = /^\.\.?\//;
const RDS2 = /^\/\.(\/|$)/;
const RDS3 = /^\/\.\.(\/|$)/;
const RDS4 = /^\.\.?$/;
const RDS5 = /^\/?(?:.|\n)*?(?=\/|$)/;
export function removeDotSegments(input) {
const output = [];
while (input.length) {
if (input.match(RDS1)) {
input = input.replace(RDS1, "");
}
else if (input.match(RDS2)) {
input = input.replace(RDS2, "/");
}
else if (input.match(RDS3)) {
input = input.replace(RDS3, "/");
output.pop();
}
else if (input === "." || input === "..") {
input = "";
}
else {
const im = input.match(RDS5);
if (im) {
const s = im[0];
input = input.slice(s.length);
output.push(s);
}
else {
throw new Error("Unexpected dot segment condition");
}
}
}
return output.join("");
}
;
export function serialize(components, options = {}) {
const protocol = (options.iri ? IRI_PROTOCOL : URI_PROTOCOL);
const uriTokens = [];
//find scheme handler
const schemeHandler = SCHEMES[(options.scheme || components.scheme || "").toLowerCase()];
//perform scheme specific serialization
if (schemeHandler && schemeHandler.serialize)
schemeHandler.serialize(components, options);
if (components.host) {
//if host component is an IPv6 address
if (protocol.IPV6ADDRESS.test(components.host)) {
//TODO: normalize IPv6 address as per RFC 5952
}
//if host component is a domain name
else if (options.domainHost || (schemeHandler && schemeHandler.domainHost)) {
//convert IDN via punycode
try {
components.host = (!options.iri ? punycode.toASCII(components.host.replace(protocol.PCT_ENCODED, pctDecChars).toLowerCase()) : punycode.toUnicode(components.host));
}
catch (e) {
components.error = components.error || "Host's domain name can not be converted to " + (!options.iri ? "ASCII" : "Unicode") + " via punycode: " + e;
}
}
}
//normalize encoding
_normalizeComponentEncoding(components, protocol);
if (options.reference !== "suffix" && components.scheme) {
uriTokens.push(components.scheme);
uriTokens.push(":");
}
const authority = _recomposeAuthority(components, options);
if (authority !== undefined) {
if (options.reference !== "suffix") {
uriTokens.push("//");
}
uriTokens.push(authority);
if (components.path && components.path.charAt(0) !== "/") {
uriTokens.push("/");
}
}
if (components.path !== undefined) {
let s = components.path;
if (!options.absolutePath && (!schemeHandler || !schemeHandler.absolutePath)) {
s = removeDotSegments(s);
}
if (authority === undefined) {
s = s.replace(/^\/\//, "/%2F"); //don't allow the path to start with "//"
}
uriTokens.push(s);
}
if (components.query !== undefined) {
uriTokens.push("?");
uriTokens.push(components.query);
}
if (components.fragment !== undefined) {
uriTokens.push("#");
uriTokens.push(components.fragment);
}
return uriTokens.join(""); //merge tokens into a string
}
;
export function resolveComponents(base, relative, options = {}, skipNormalization) {
const target = {};
if (!skipNormalization) {
base = parse(serialize(base, options), options); //normalize base components
relative = parse(serialize(relative, options), options); //normalize relative components
}
options = options || {};
if (!options.tolerant && relative.scheme) {
target.scheme = relative.scheme;
//target.authority = relative.authority;
target.userinfo = relative.userinfo;
target.host = relative.host;
target.port = relative.port;
target.path = removeDotSegments(relative.path || "");
target.query = relative.query;
}
else {
if (relative.userinfo !== undefined || relative.host !== undefined || relative.port !== undefined) {
//target.authority = relative.authority;
target.userinfo = relative.userinfo;
target.host = relative.host;
target.port = relative.port;
target.path = removeDotSegments(relative.path || "");
target.query = relative.query;
}
else {
if (!relative.path) {
target.path = base.path;
if (relative.query !== undefined) {
target.query = relative.query;
}
else {
target.query = base.query;
}
}
else {
if (relative.path.charAt(0) === "/") {
target.path = removeDotSegments(relative.path);
}
else {
if ((base.userinfo !== undefined || base.host !== undefined || base.port !== undefined) && !base.path) {
target.path = "/" + relative.path;
}
else if (!base.path) {
target.path = relative.path;
}
else {
target.path = base.path.slice(0, base.path.lastIndexOf("/") + 1) + relative.path;
}
target.path = removeDotSegments(target.path);
}
target.query = relative.query;
}
//target.authority = base.authority;
target.userinfo = base.userinfo;
target.host = base.host;
target.port = base.port;
}
target.scheme = base.scheme;
}
target.fragment = relative.fragment;
return target;
}
;
export function resolve(baseURI, relativeURI, options) {
const schemelessOptions = assign({ scheme: 'null' }, options);
return serialize(resolveComponents(parse(baseURI, schemelessOptions), parse(relativeURI, schemelessOptions), schemelessOptions, true), schemelessOptions);
}
;
export function normalize(uri, options) {
if (typeof uri === "string") {
uri = serialize(parse(uri, options), options);
}
else if (typeOf(uri) === "object") {
uri = parse(serialize(uri, options), options);
}
return uri;
}
;
export function equal(uriA, uriB, options) {
if (typeof uriA === "string") {
uriA = serialize(parse(uriA, options), options);
}
else if (typeOf(uriA) === "object") {
uriA = serialize(uriA, options);
}
if (typeof uriB === "string") {
uriB = serialize(parse(uriB, options), options);
}
else if (typeOf(uriB) === "object") {
uriB = serialize(uriB, options);
}
return uriA === uriB;
}
;
export function escapeComponent(str, options) {
return str && str.toString().replace((!options || !options.iri ? URI_PROTOCOL.ESCAPE : IRI_PROTOCOL.ESCAPE), pctEncChar);
}
;
export function unescapeComponent(str, options) {
return str && str.toString().replace((!options || !options.iri ? URI_PROTOCOL.PCT_ENCODED : IRI_PROTOCOL.PCT_ENCODED), pctDecChars);
}
;
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