"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
var matcher_1 = require("./matcher");
var regex_lib_1 = require("../regex-lib");
var tld_regex_1 = require("./tld-regex");
var url_match_1 = require("../match/url-match");
var url_match_validator_1 = require("./url-match-validator");
/**
* @class Autolinker.matcher.Url
* @extends Autolinker.matcher.Matcher
*
* Matcher to find URL matches in an input string.
*
* See this class's superclass ({@link Autolinker.matcher.Matcher}) for more details.
*/
var UrlMatcher = (function (_super) {
__extends(UrlMatcher, _super);
/**
* @method constructor
* @param {Object} cfg The configuration properties for the Match instance,
* specified in an Object (map).
*/
function UrlMatcher(cfg) {
var _this = _super.call(this, cfg) || this;
/**
* @cfg {Object} stripPrefix (required)
*
* The Object form of {@link Autolinker#cfg-stripPrefix}.
*/
_this.stripPrefix = { scheme: true, www: true }; // default value just to get the above doc comment in the ES5 output and documentation generator
/**
* @cfg {Boolean} stripTrailingSlash (required)
* @inheritdoc Autolinker#stripTrailingSlash
*/
_this.stripTrailingSlash = true; // default value just to get the above doc comment in the ES5 output and documentation generator
/**
* @cfg {Boolean} decodePercentEncoding (required)
* @inheritdoc Autolinker#decodePercentEncoding
*/
_this.decodePercentEncoding = true; // default value just to get the above doc comment in the ES5 output and documentation generator
/**
* @protected
* @property {RegExp} matcherRegex
*
* The regular expression to match URLs with an optional scheme, port
* number, path, query string, and hash anchor.
*
* Example matches:
*
* http://google.com
* www.google.com
* google.com/path/to/file?q1=1&q2=2#myAnchor
*
*
* This regular expression will have the following capturing groups:
*
* 1. Group that matches a scheme-prefixed URL (i.e. 'http://google.com').
* This is used to match scheme URLs with just a single word, such as
* 'http://localhost', where we won't double check that the domain name
* has at least one dot ('.') in it.
* 2. Group that matches a 'www.' prefixed URL. This is only matched if the
* 'www.' text was not prefixed by a scheme (i.e.: not prefixed by
* 'http://', 'ftp:', etc.)
* 3. A protocol-relative ('//') match for the case of a 'www.' prefixed
* URL. Will be an empty string if it is not a protocol-relative match.
* We need to know the character before the '//' in order to determine
* if it is a valid match or the // was in a string we don't want to
* auto-link.
* 4. Group that matches a known TLD (top level domain), when a scheme
* or 'www.'-prefixed domain is not matched.
* 5. A protocol-relative ('//') match for the case of a known TLD prefixed
* URL. Will be an empty string if it is not a protocol-relative match.
* See #3 for more info.
*/
_this.matcherRegex = (function () {
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)
wwwRegex = /(?:www\.)/, // starting with 'www.'
// Allow optional path, query string, and hash anchor, not ending in the following characters: "?!:,.;"
// http://blog.codinghorror.com/the-problem-with-urls/
urlSuffixRegex = new RegExp('[/?#](?:[' + regex_lib_1.alphaNumericAndMarksCharsStr + '\\-+&@#/%=~_()|\'$*\\[\\]?!:,.;\u2713]*[' + regex_lib_1.alphaNumericAndMarksCharsStr + '\\-+&@#/%=~_()|\'$*\\[\\]\u2713])?');
return new RegExp([
'(?:',
'(',
schemeRegex.source,
regex_lib_1.getDomainNameStr(2),
')',
'|',
'(',
'(//)?',
wwwRegex.source,
regex_lib_1.getDomainNameStr(6),
')',
'|',
'(',
'(//)?',
regex_lib_1.getDomainNameStr(10) + '\\.',
tld_regex_1.tldRegex.source,
'(?![-' + regex_lib_1.alphaNumericCharsStr + '])',
')',
')',
'(?::[0-9]+)?',
'(?:' + urlSuffixRegex.source + ')?' // match for path, query string, and/or hash anchor - optional
].join(""), 'gi');
})();
/**
* A regular expression to use to check the character before a protocol-relative
* URL match. We don't want to match a protocol-relative URL if it is part
* of another word.
*
* For example, we want to match something like "Go to: //google.com",
* but we don't want to match something like "abc//google.com"
*
* This regular expression is used to test the character before the '//'.
*
* @protected
* @type {RegExp} wordCharRegExp
*/
_this.wordCharRegExp = new RegExp('[' + regex_lib_1.alphaNumericAndMarksCharsStr + ']');
/**
* The regular expression to match opening parenthesis in a URL match.
*
* This is to determine if we have unbalanced parenthesis in the URL, and to
* drop the final parenthesis that was matched if so.
*
* Ex: The text "(check out: wikipedia.com/something_(disambiguation))"
* should only autolink the inner "wikipedia.com/something_(disambiguation)"
* part, so if we find that we have unbalanced parenthesis, we will drop the
* last one for the match.
*
* @protected
* @property {RegExp}
*/
_this.openParensRe = /\(/g;
/**
* The regular expression to match closing parenthesis in a URL match. See
* {@link #openParensRe} for more information.
*
* @protected
* @property {RegExp}
*/
_this.closeParensRe = /\)/g;
_this.stripPrefix = cfg.stripPrefix;
_this.stripTrailingSlash = cfg.stripTrailingSlash;
_this.decodePercentEncoding = cfg.decodePercentEncoding;
return _this;
}
/**
* @inheritdoc
*/
UrlMatcher.prototype.parseMatches = function (text) {
var matcherRegex = this.matcherRegex, stripPrefix = this.stripPrefix, stripTrailingSlash = this.stripTrailingSlash, decodePercentEncoding = this.decodePercentEncoding, tagBuilder = this.tagBuilder, matches = [], match;
while ((match = matcherRegex.exec(text)) !== null) {
var matchStr = match[0], schemeUrlMatch = match[1], wwwUrlMatch = match[4], wwwProtocolRelativeMatch = match[5],
//tldUrlMatch = match[ 8 ], -- not needed at the moment
tldProtocolRelativeMatch = match[9], offset = match.index, protocolRelativeMatch = wwwProtocolRelativeMatch || tldProtocolRelativeMatch, prevChar = text.charAt(offset - 1);
if (!url_match_validator_1.UrlMatchValidator.isValid(matchStr, schemeUrlMatch)) {
continue;
}
// If the match is preceded by an '@' character, then it is either
// an email address or a username. Skip these types of matches.
if (offset > 0 && prevChar === '@') {
continue;
}
// If it's a protocol-relative '//' match, but the character before the '//'
// was a word character (i.e. a letter/number), then we found the '//' in the
// middle of another word (such as "asdf//asdf.com"). In this case, skip the
// match.
if (offset > 0 && protocolRelativeMatch && this.wordCharRegExp.test(prevChar)) {
continue;
}
if (/\?$/.test(matchStr)) {
matchStr = matchStr.substr(0, matchStr.length - 1);
}
// Handle a closing parenthesis at the end of the match, and exclude
// it if there is not a matching open parenthesis in the match
// itself.
if (this.matchHasUnbalancedClosingParen(matchStr)) {
matchStr = matchStr.substr(0, matchStr.length - 1); // remove the trailing ")"
}
else {
// Handle an invalid character after the TLD
var pos = this.matchHasInvalidCharAfterTld(matchStr, schemeUrlMatch);
if (pos > -1) {
matchStr = matchStr.substr(0, pos); // remove the trailing invalid chars
}
}
var urlMatchType = schemeUrlMatch ? 'scheme' : (wwwUrlMatch ? 'www' : 'tld'), protocolUrlMatch = !!schemeUrlMatch;
matches.push(new url_match_1.UrlMatch({
tagBuilder: tagBuilder,
matchedText: matchStr,
offset: offset,
urlMatchType: urlMatchType,
url: matchStr,
protocolUrlMatch: protocolUrlMatch,
protocolRelativeMatch: !!protocolRelativeMatch,
stripPrefix: stripPrefix,
stripTrailingSlash: stripTrailingSlash,
decodePercentEncoding: decodePercentEncoding,
}));
}
return matches;
};
/**
* Determines if a match found has an unmatched closing parenthesis. If so,
* this parenthesis will be removed from the match itself, and appended
* after the generated anchor tag.
*
* A match may have an extra closing parenthesis at the end of the match
* because the regular expression must include parenthesis for URLs such as
* "wikipedia.com/something_(disambiguation)", which should be auto-linked.
*
* However, an extra parenthesis *will* be included when the URL itself is
* wrapped in parenthesis, such as in the case of "(wikipedia.com/something_(disambiguation))".
* In this case, the last closing parenthesis should *not* be part of the
* URL itself, and this method will return `true`.
*
* @protected
* @param {String} matchStr The full match string from the {@link #matcherRegex}.
* @return {Boolean} `true` if there is an unbalanced closing parenthesis at
* the end of the `matchStr`, `false` otherwise.
*/
UrlMatcher.prototype.matchHasUnbalancedClosingParen = function (matchStr) {
var lastChar = matchStr.charAt(matchStr.length - 1);
if (lastChar === ')') {
var openParensMatch = matchStr.match(this.openParensRe), closeParensMatch = matchStr.match(this.closeParensRe), numOpenParens = (openParensMatch && openParensMatch.length) || 0, numCloseParens = (closeParensMatch && closeParensMatch.length) || 0;
if (numOpenParens < numCloseParens) {
return true;
}
}
return false;
};
/**
* Determine if there's an invalid character after the TLD in a URL. Valid
* characters after TLD are ':/?#'. Exclude scheme matched URLs from this
* check.
*
* @protected
* @param {String} urlMatch The matched URL, if there was one. Will be an
* empty string if the match is not a URL match.
* @param {String} schemeUrlMatch The match URL string for a scheme
* match. Ex: 'http://yahoo.com'. This is used to match something like
* 'http://localhost', where we won't double check that the domain name
* has at least one '.' in it.
* @return {Number} the position where the invalid character was found. If
* no such character was found, returns -1
*/
UrlMatcher.prototype.matchHasInvalidCharAfterTld = function (urlMatch, schemeUrlMatch) {
if (!urlMatch) {
return -1;
}
var offset = 0;
if (schemeUrlMatch) {
offset = urlMatch.indexOf(':');
urlMatch = urlMatch.slice(offset);
}
var re = new RegExp("^((.?\/\/)?[-." + regex_lib_1.alphaNumericAndMarksCharsStr + "]*[-" + regex_lib_1.alphaNumericAndMarksCharsStr + "]\\.[-" + regex_lib_1.alphaNumericAndMarksCharsStr + "]+)");
var res = re.exec(urlMatch);
if (res === null) {
return -1;
}
offset += res[1].length;
urlMatch = urlMatch.slice(res[1].length);
if (/^[^-.A-Za-z0-9:\/?#]/.test(urlMatch)) {
return offset;
}
return -1;
};
return UrlMatcher;
}(matcher_1.Matcher));
exports.UrlMatcher = UrlMatcher;
//# sourceMappingURL=url-matcher.js.map