mirror of https://github.com/tooot-app/app
313 lines
15 KiB
JavaScript
313 lines
15 KiB
JavaScript
import * as tslib_1 from "tslib";
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import { Matcher } from "./matcher";
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import { alphaNumericCharsStr, alphaNumericAndMarksCharsStr, getDomainNameStr } from "../regex-lib";
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import { tldRegex } from "./tld-regex";
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import { UrlMatch } from "../match/url-match";
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import { UrlMatchValidator } from "./url-match-validator";
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// RegExp objects which are shared by all instances of UrlMatcher. These are
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// here to avoid re-instantiating the RegExp objects if `Autolinker.link()` is
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// called multiple times, thus instantiating UrlMatcher and its RegExp
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// objects each time (which is very expensive - see https://github.com/gregjacobs/Autolinker.js/issues/314).
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// See descriptions of the properties where they are used for details about them
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var matcherRegex = (function () {
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var schemeRegex = /(?:[A-Za-z][-.+A-Za-z0-9]{0,63}:(?![A-Za-z][-.+A-Za-z0-9]{0,63}:\/\/)(?!\d+\/?)(?:\/\/)?)/, // match protocol, allow in format "http://" or "mailto:". However, do not match the first part of something like 'link:http://www.google.com' (i.e. don't match "link:"). Also, make sure we don't interpret 'google.com:8000' as if 'google.com' was a protocol here (i.e. ignore a trailing port number in this regex)
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wwwRegex = /(?:www\.)/, // starting with 'www.'
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// Allow optional path, query string, and hash anchor, not ending in the following characters: "?!:,.;"
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// http://blog.codinghorror.com/the-problem-with-urls/
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urlSuffixRegex = new RegExp('[/?#](?:[' + alphaNumericAndMarksCharsStr + '\\-+&@#/%=~_()|\'$*\\[\\]{}?!:,.;^\u2713]*[' + alphaNumericAndMarksCharsStr + '\\-+&@#/%=~_()|\'$*\\[\\]{}\u2713])?');
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return new RegExp([
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'(?:',
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'(',
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schemeRegex.source,
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getDomainNameStr(2),
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')',
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'|',
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'(',
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'(//)?',
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wwwRegex.source,
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getDomainNameStr(6),
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')',
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'|',
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'(',
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'(//)?',
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getDomainNameStr(10) + '\\.',
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tldRegex.source,
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'(?![-' + alphaNumericCharsStr + '])',
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')',
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')',
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'(?::[0-9]+)?',
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'(?:' + urlSuffixRegex.source + ')?' // match for path, query string, and/or hash anchor - optional
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].join(""), 'gi');
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})();
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var wordCharRegExp = new RegExp('[' + alphaNumericAndMarksCharsStr + ']');
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/**
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* @class Autolinker.matcher.Url
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* @extends Autolinker.matcher.Matcher
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*
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* Matcher to find URL matches in an input string.
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*
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* See this class's superclass ({@link Autolinker.matcher.Matcher}) for more details.
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*/
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var UrlMatcher = /** @class */ (function (_super) {
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tslib_1.__extends(UrlMatcher, _super);
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/**
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* @method constructor
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* @param {Object} cfg The configuration properties for the Match instance,
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* specified in an Object (map).
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*/
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function UrlMatcher(cfg) {
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var _this = _super.call(this, cfg) || this;
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/**
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* @cfg {Object} stripPrefix (required)
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*
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* The Object form of {@link Autolinker#cfg-stripPrefix}.
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*/
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_this.stripPrefix = { scheme: true, www: true }; // default value just to get the above doc comment in the ES5 output and documentation generator
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/**
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* @cfg {Boolean} stripTrailingSlash (required)
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* @inheritdoc Autolinker#stripTrailingSlash
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*/
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_this.stripTrailingSlash = true; // default value just to get the above doc comment in the ES5 output and documentation generator
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/**
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* @cfg {Boolean} decodePercentEncoding (required)
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* @inheritdoc Autolinker#decodePercentEncoding
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*/
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_this.decodePercentEncoding = true; // default value just to get the above doc comment in the ES5 output and documentation generator
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/**
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* @protected
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* @property {RegExp} matcherRegex
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*
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* The regular expression to match URLs with an optional scheme, port
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* number, path, query string, and hash anchor.
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*
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* Example matches:
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*
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* http://google.com
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* www.google.com
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* google.com/path/to/file?q1=1&q2=2#myAnchor
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*
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*
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* This regular expression will have the following capturing groups:
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*
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* 1. Group that matches a scheme-prefixed URL (i.e. 'http://google.com').
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* This is used to match scheme URLs with just a single word, such as
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* 'http://localhost', where we won't double check that the domain name
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* has at least one dot ('.') in it.
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* 2. Group that matches a 'www.' prefixed URL. This is only matched if the
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* 'www.' text was not prefixed by a scheme (i.e.: not prefixed by
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* 'http://', 'ftp:', etc.)
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* 3. A protocol-relative ('//') match for the case of a 'www.' prefixed
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* URL. Will be an empty string if it is not a protocol-relative match.
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* We need to know the character before the '//' in order to determine
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* if it is a valid match or the // was in a string we don't want to
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* auto-link.
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* 4. Group that matches a known TLD (top level domain), when a scheme
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* or 'www.'-prefixed domain is not matched.
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* 5. A protocol-relative ('//') match for the case of a known TLD prefixed
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* URL. Will be an empty string if it is not a protocol-relative match.
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* See #3 for more info.
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*/
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_this.matcherRegex = matcherRegex;
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/**
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* A regular expression to use to check the character before a protocol-relative
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* URL match. We don't want to match a protocol-relative URL if it is part
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* of another word.
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*
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* For example, we want to match something like "Go to: //google.com",
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* but we don't want to match something like "abc//google.com"
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*
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* This regular expression is used to test the character before the '//'.
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*
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* @protected
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* @type {RegExp} wordCharRegExp
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*/
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_this.wordCharRegExp = wordCharRegExp;
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_this.stripPrefix = cfg.stripPrefix;
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_this.stripTrailingSlash = cfg.stripTrailingSlash;
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_this.decodePercentEncoding = cfg.decodePercentEncoding;
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return _this;
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}
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/**
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* @inheritdoc
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*/
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UrlMatcher.prototype.parseMatches = function (text) {
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var matcherRegex = this.matcherRegex, stripPrefix = this.stripPrefix, stripTrailingSlash = this.stripTrailingSlash, decodePercentEncoding = this.decodePercentEncoding, tagBuilder = this.tagBuilder, matches = [], match;
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var _loop_1 = function () {
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var matchStr = match[0], schemeUrlMatch = match[1], wwwUrlMatch = match[4], wwwProtocolRelativeMatch = match[5],
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//tldUrlMatch = match[ 8 ], -- not needed at the moment
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tldProtocolRelativeMatch = match[9], offset = match.index, protocolRelativeMatch = wwwProtocolRelativeMatch || tldProtocolRelativeMatch, prevChar = text.charAt(offset - 1);
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if (!UrlMatchValidator.isValid(matchStr, schemeUrlMatch)) {
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return "continue";
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}
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// If the match is preceded by an '@' character, then it is either
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// an email address or a username. Skip these types of matches.
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if (offset > 0 && prevChar === '@') {
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return "continue";
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}
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// If it's a protocol-relative '//' match, but the character before the '//'
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// was a word character (i.e. a letter/number), then we found the '//' in the
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// middle of another word (such as "asdf//asdf.com"). In this case, skip the
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// match.
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if (offset > 0 && protocolRelativeMatch && this_1.wordCharRegExp.test(prevChar)) {
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return "continue";
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}
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// If the URL ends with a question mark, don't include the question
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// mark as part of the URL. We'll assume the question mark was the
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// end of a sentence, such as: "Going to google.com?"
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if (/\?$/.test(matchStr)) {
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matchStr = matchStr.substr(0, matchStr.length - 1);
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}
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// Handle a closing parenthesis or square bracket at the end of the
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// match, and exclude it if there is not a matching open parenthesis
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// or square bracket in the match itself.
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if (this_1.matchHasUnbalancedClosingParen(matchStr)) {
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matchStr = matchStr.substr(0, matchStr.length - 1); // remove the trailing ")"
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}
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else {
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// Handle an invalid character after the TLD
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var pos = this_1.matchHasInvalidCharAfterTld(matchStr, schemeUrlMatch);
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if (pos > -1) {
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matchStr = matchStr.substr(0, pos); // remove the trailing invalid chars
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}
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}
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// The autolinker accepts many characters in a url's scheme (like `fake://test.com`).
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// However, in cases where a URL is missing whitespace before an obvious link,
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// (for example: `nowhitespacehttp://www.test.com`), we only want the match to start
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// at the http:// part. We will check if the match contains a common scheme and then
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// shift the match to start from there.
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var foundCommonScheme = ['http://', 'https://'].find(function (commonScheme) { return !!schemeUrlMatch && schemeUrlMatch.indexOf(commonScheme) !== -1; });
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if (foundCommonScheme) {
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// If we found an overmatched URL, we want to find the index
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// of where the match should start and shift the match to
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// start from the beginning of the common scheme
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var indexOfSchemeStart = matchStr.indexOf(foundCommonScheme);
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matchStr = matchStr.substr(indexOfSchemeStart);
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schemeUrlMatch = schemeUrlMatch.substr(indexOfSchemeStart);
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offset = offset + indexOfSchemeStart;
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}
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var urlMatchType = schemeUrlMatch ? 'scheme' : (wwwUrlMatch ? 'www' : 'tld'), protocolUrlMatch = !!schemeUrlMatch;
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matches.push(new UrlMatch({
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tagBuilder: tagBuilder,
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matchedText: matchStr,
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offset: offset,
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urlMatchType: urlMatchType,
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url: matchStr,
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protocolUrlMatch: protocolUrlMatch,
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protocolRelativeMatch: !!protocolRelativeMatch,
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stripPrefix: stripPrefix,
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stripTrailingSlash: stripTrailingSlash,
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decodePercentEncoding: decodePercentEncoding,
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}));
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};
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var this_1 = this;
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while ((match = matcherRegex.exec(text)) !== null) {
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_loop_1();
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}
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return matches;
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};
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/**
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* Determines if a match found has an unmatched closing parenthesis,
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* square bracket or curly bracket. If so, the symbol will be removed
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* from the match itself, and appended after the generated anchor tag.
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*
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* A match may have an extra closing parenthesis at the end of the match
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* because the regular expression must include parenthesis for URLs such as
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* "wikipedia.com/something_(disambiguation)", which should be auto-linked.
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*
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* However, an extra parenthesis *will* be included when the URL itself is
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* wrapped in parenthesis, such as in the case of:
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* "(wikipedia.com/something_(disambiguation))"
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* In this case, the last closing parenthesis should *not* be part of the
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* URL itself, and this method will return `true`.
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*
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* For square brackets in URLs such as in PHP arrays, the same behavior as
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* parenthesis discussed above should happen:
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* "[http://www.example.com/foo.php?bar[]=1&bar[]=2&bar[]=3]"
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* The closing square bracket should not be part of the URL itself, and this
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* method will return `true`.
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*
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* @protected
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* @param {String} matchStr The full match string from the {@link #matcherRegex}.
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* @return {Boolean} `true` if there is an unbalanced closing parenthesis or
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* square bracket at the end of the `matchStr`, `false` otherwise.
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*/
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UrlMatcher.prototype.matchHasUnbalancedClosingParen = function (matchStr) {
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var endChar = matchStr.charAt(matchStr.length - 1);
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var startChar;
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if (endChar === ')') {
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startChar = '(';
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}
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else if (endChar === ']') {
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startChar = '[';
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}
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else if (endChar === '}') {
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startChar = '{';
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}
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else {
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return false; // not a close parenthesis or square bracket
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}
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// Find if there are the same number of open braces as close braces in
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// the URL string, minus the last character (which we have already
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// determined to be either ')', ']' or '}'
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var numOpenBraces = 0;
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for (var i = 0, len = matchStr.length - 1; i < len; i++) {
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var char = matchStr.charAt(i);
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if (char === startChar) {
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numOpenBraces++;
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}
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else if (char === endChar) {
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numOpenBraces = Math.max(numOpenBraces - 1, 0);
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}
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}
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// If the number of open braces matches the number of close braces in
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// the URL minus the last character, then the match has *unbalanced*
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// braces because of the last character. Example of unbalanced braces
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// from the regex match:
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// "http://example.com?a[]=1]"
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if (numOpenBraces === 0) {
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return true;
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}
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return false;
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};
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/**
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* Determine if there's an invalid character after the TLD in a URL. Valid
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* characters after TLD are ':/?#'. Exclude scheme matched URLs from this
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* check.
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*
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* @protected
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* @param {String} urlMatch The matched URL, if there was one. Will be an
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* empty string if the match is not a URL match.
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* @param {String} schemeUrlMatch The match URL string for a scheme
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* match. Ex: 'http://yahoo.com'. This is used to match something like
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* 'http://localhost', where we won't double check that the domain name
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* has at least one '.' in it.
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* @return {Number} the position where the invalid character was found. If
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* no such character was found, returns -1
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*/
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UrlMatcher.prototype.matchHasInvalidCharAfterTld = function (urlMatch, schemeUrlMatch) {
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if (!urlMatch) {
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return -1;
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}
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var offset = 0;
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if (schemeUrlMatch) {
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offset = urlMatch.indexOf(':');
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urlMatch = urlMatch.slice(offset);
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}
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var re = new RegExp("^((.?\/\/)?[-." + alphaNumericAndMarksCharsStr + "]*[-" + alphaNumericAndMarksCharsStr + "]\\.[-" + alphaNumericAndMarksCharsStr + "]+)");
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var res = re.exec(urlMatch);
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if (res === null) {
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return -1;
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}
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offset += res[1].length;
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urlMatch = urlMatch.slice(res[1].length);
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if (/^[^-.A-Za-z0-9:\/?#]/.test(urlMatch)) {
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return offset;
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}
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return -1;
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};
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return UrlMatcher;
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}(Matcher));
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export { UrlMatcher };
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//# sourceMappingURL=url-matcher.js.map
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