mirror of
https://github.com/gorhill/uMatrix.git
synced 2024-05-03 20:03:27 +12:00
9b292304d3
Notably: - Import logger improvements from uBO - Import CNAME uncloaking from uBO - Import more improvements from uBO - Make use of modern JS features This should un-stall further development of uMatrix.
285 lines
10 KiB
JavaScript
285 lines
10 KiB
JavaScript
/*******************************************************************************
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uMatrix - a browser extension to black/white list requests.
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Copyright (C) 2014-2018 Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uMatrix
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*/
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'use strict';
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/*******************************************************************************
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RFC 3986 as reference: http://tools.ietf.org/html/rfc3986#appendix-A
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Naming convention from https://en.wikipedia.org/wiki/URI_scheme#Examples
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*/
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/******************************************************************************/
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µMatrix.URI = (function() {
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/******************************************************************************/
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// Favorite regex tool: http://regex101.com/
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// Ref: <http://tools.ietf.org/html/rfc3986#page-50>
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// I removed redundant capture groups: capture less = peform faster. See
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// <http://jsperf.com/old-uritools-vs-new-uritools>
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// Performance improvements welcomed.
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// jsperf: <http://jsperf.com/old-uritools-vs-new-uritools>
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const reRFC3986 = /^([^:\/?#]+:)?(\/\/[^\/?#]*)?([^?#]*)(\?[^#]*)?(#.*)?/;
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// Derived
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const reSchemeFromURI = /^[a-z][0-9a-z+.-]+:/;
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const reOriginFromURI = /^(?:[^:\/?#]+:)\/\/[^\/?#]+/;
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// These are to parse authority field, not parsed by above official regex
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// IPv6 is seen as an exception: a non-compatible IPv6 is first tried, and
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// if it fails, the IPv6 compatible regex istr used. This helps
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// peformance by avoiding the use of a too complicated regex first.
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// https://github.com/gorhill/httpswitchboard/issues/211
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// "While a hostname may not contain other characters, such as the
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// "underscore character (_), other DNS names may contain the underscore"
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const reHostPortFromAuthority = /^(?:[^@]*@)?([^:]*)(:\d*)?$/;
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const reIPv6PortFromAuthority = /^(?:[^@]*@)?(\[[0-9a-f:]*\])(:\d*)?$/i;
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const reHostFromNakedAuthority = /^[0-9a-z._-]+[0-9a-z]$/i;
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// Accurate tests
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// Source.: http://stackoverflow.com/questions/5284147/validating-ipv4-addresses-with-regexp/5284410#5284410
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//var reIPv4 = /^((25[0-5]|2[0-4]\d|[01]?\d\d?)(\.|$)){4}/;
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// Source: http://forums.intermapper.com/viewtopic.php?p=1096#1096
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//var reIPv6 = /^\s*((([0-9A-Fa-f]{1,4}:){7}([0-9A-Fa-f]{1,4}|:))|(([0-9A-Fa-f]{1,4}:){6}(:[0-9A-Fa-f]{1,4}|((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){5}(((:[0-9A-Fa-f]{1,4}){1,2})|:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3})|:))|(([0-9A-Fa-f]{1,4}:){4}(((:[0-9A-Fa-f]{1,4}){1,3})|((:[0-9A-Fa-f]{1,4})?:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){3}(((:[0-9A-Fa-f]{1,4}){1,4})|((:[0-9A-Fa-f]{1,4}){0,2}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){2}(((:[0-9A-Fa-f]{1,4}){1,5})|((:[0-9A-Fa-f]{1,4}){0,3}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(([0-9A-Fa-f]{1,4}:){1}(((:[0-9A-Fa-f]{1,4}){1,6})|((:[0-9A-Fa-f]{1,4}){0,4}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:))|(:(((:[0-9A-Fa-f]{1,4}){1,7})|((:[0-9A-Fa-f]{1,4}){0,5}:((25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)(\.(25[0-5]|2[0-4]\d|1\d\d|[1-9]?\d)){3}))|:)))(%.+)?\s*$/;
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/******************************************************************************/
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var reset = function(o) {
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o.scheme = '';
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o.hostname = '';
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o._ipv4 = undefined;
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o._ipv6 = undefined;
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o.port = '';
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o.path = '';
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o.query = '';
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o.fragment = '';
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return o;
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};
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var resetAuthority = function(o) {
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o.hostname = '';
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o._ipv4 = undefined;
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o._ipv6 = undefined;
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o.port = '';
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return o;
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};
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/******************************************************************************/
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// This will be exported
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const URI = {
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scheme: '',
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authority: '',
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hostname: '',
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_ipv4: undefined,
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_ipv6: undefined,
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port: '',
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domain: undefined,
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path: '',
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query: '',
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fragment: '',
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schemeBit: (1 << 0),
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userBit: (1 << 1),
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passwordBit: (1 << 2),
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hostnameBit: (1 << 3),
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portBit: (1 << 4),
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pathBit: (1 << 5),
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queryBit: (1 << 6),
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fragmentBit: (1 << 7),
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allBits: (0xFFFF)
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};
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URI.authorityBit = (URI.userBit | URI.passwordBit | URI.hostnameBit | URI.portBit);
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URI.normalizeBits = (URI.schemeBit | URI.hostnameBit | URI.pathBit | URI.queryBit);
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/******************************************************************************/
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// See: https://en.wikipedia.org/wiki/URI_scheme#Examples
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// URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
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//
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// foo://example.com:8042/over/there?name=ferret#nose
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// \_/ \______________/\_________/ \_________/ \__/
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// | | | | |
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// scheme authority path query fragment
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// | _____________________|__
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// / \ / \
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// urn:example:animal:ferret:nose
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URI.set = function(uri) {
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if ( uri === undefined ) {
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return reset(URI);
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}
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var matches = reRFC3986.exec(uri);
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if ( !matches ) {
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return reset(URI);
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}
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this.scheme = matches[1] !== undefined ? matches[1].slice(0, -1) : '';
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this.authority = matches[2] !== undefined ? matches[2].slice(2).toLowerCase() : '';
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this.path = matches[3] !== undefined ? matches[3] : '';
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// <http://tools.ietf.org/html/rfc3986#section-6.2.3>
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// "In general, a URI that uses the generic syntax for authority
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// "with an empty path should be normalized to a path of '/'."
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if ( this.authority !== '' && this.path === '' ) {
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this.path = '/';
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}
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this.query = matches[4] !== undefined ? matches[4].slice(1) : '';
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this.fragment = matches[5] !== undefined ? matches[5].slice(1) : '';
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// Assume very simple authority, i.e. just a hostname (highest likelihood
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// case for µMatrix)
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if ( reHostFromNakedAuthority.test(this.authority) ) {
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this.hostname = this.authority;
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this.port = '';
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return this;
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}
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// Authority contains more than just a hostname
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matches = reHostPortFromAuthority.exec(this.authority);
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if ( !matches ) {
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matches = reIPv6PortFromAuthority.exec(this.authority);
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if ( !matches ) {
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return resetAuthority(URI);
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}
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}
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this.hostname = matches[1] !== undefined ? matches[1] : '';
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// http://en.wikipedia.org/wiki/FQDN
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if ( this.hostname.slice(-1) === '.' ) {
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this.hostname = this.hostname.slice(0, -1);
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}
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this.port = matches[2] !== undefined ? matches[2].slice(1) : '';
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return this;
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};
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/******************************************************************************/
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// URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
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//
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// foo://example.com:8042/over/there?name=ferret#nose
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// \_/ \______________/\_________/ \_________/ \__/
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// | | | | |
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// scheme authority path query fragment
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// | _____________________|__
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// / \ / \
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// urn:example:animal:ferret:nose
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URI.assemble = function(bits) {
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if ( bits === undefined ) {
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bits = this.allBits;
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}
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var s = [];
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if ( this.scheme && (bits & this.schemeBit) ) {
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s.push(this.scheme, ':');
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}
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if ( this.hostname && (bits & this.hostnameBit) ) {
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s.push('//', this.hostname);
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}
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if ( this.port && (bits & this.portBit) ) {
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s.push(':', this.port);
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}
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if ( this.path && (bits & this.pathBit) ) {
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s.push(this.path);
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}
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if ( this.query && (bits & this.queryBit) ) {
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s.push('?', this.query);
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}
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if ( this.fragment && (bits & this.fragmentBit) ) {
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s.push('#', this.fragment);
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}
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return s.join('');
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};
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/******************************************************************************/
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URI.originFromURI = function(uri) {
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const matches = reOriginFromURI.exec(uri);
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return matches !== null ? matches[0].toLowerCase() : '';
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};
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/******************************************************************************/
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URI.schemeFromURI = function(uri) {
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const matches = reSchemeFromURI.exec(uri);
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if ( matches === null ) { return ''; }
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return matches[0].slice(0, -1).toLowerCase();
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};
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/******************************************************************************/
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const reNetworkScheme = /^(?:https?|wss?|ftps?)\b/;
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URI.isNetworkScheme = function(scheme) {
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return reNetworkScheme.test(scheme);
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};
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/******************************************************************************/
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URI.isSecureScheme = function(scheme) {
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return this.reSecureScheme.test(scheme);
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};
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URI.reSecureScheme = /^(?:https|wss|ftps)\b/;
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/******************************************************************************/
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URI.hostnameFromURI = vAPI.hostnameFromURI;
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URI.domainFromHostname = vAPI.domainFromHostname;
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URI.domainFromURI = vAPI.domainFromURI;
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/******************************************************************************/
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// Normalize the way µMatrix expects it
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URI.normalizedURI = function() {
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// Will be removed:
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// - port
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// - user id/password
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// - fragment
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return this.assemble(this.normalizeBits);
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};
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/******************************************************************************/
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URI.toString = function() {
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return this.assemble();
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};
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/******************************************************************************/
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// Export
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return URI;
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/******************************************************************************/
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})();
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/******************************************************************************/
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