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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); } ; //# sourceMappingURL=uri.js.map
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