246 lines
6.1 KiB
JavaScript
246 lines
6.1 KiB
JavaScript
const re = {
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http: /.*?:\/\//g,
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url: /(\s|^)((https?|ftp):\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\w-\/\?\=\#\.])*/gi,
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image: /\.(jpe?g|png|gif)$/,
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email:
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/(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))/gi,
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cloudmusic: /http:\/\/music\.163\.com\/#\/song\?id=(\d+)/i,
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kickstarter:
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/(https?:\/\/www\.kickstarter\.com\/projects\/\d+\/[a-zA-Z0-9_-]+)(\?\w+\=\w+)?/i,
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youtube:
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/https?:\/\/www\.youtube\.com\/watch\?v=([a-zA-Z0-9_-]+)(\?\w+\=\w+)?/i,
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vimeo:
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/https?:\/\/(?:www\.|player\.)?vimeo.com\/(?:channels\/(?:\w+\/)?|groups\/[^\/]*\/videos\/|album\/\d+\/video\/|video\/|)(\d+)(?:$|\/|\?)/i,
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youku:
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/https?:\/\/v\.youku\.com\/v_show\/id_([a-zA-Z0-9_\=-]+).html(\?\w+\=\w+)?(\#\w+)?/i,
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};
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/**
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* AutoLink constructor function
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*
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* @param {String} text
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* @param {Object} options
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* @constructor
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*/
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function AutoLink(string, options = {}) {
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this.string = options.safe ? safe_tags_replace(string) : string;
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this.options = options;
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this.attrs = "";
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this.linkAttr = "";
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this.imageAttr = "";
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if (this.options.sharedAttr) {
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this.attrs = getAttr(this.options.sharedAttr);
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}
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if (this.options.linkAttr) {
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this.linkAttr = getAttr(this.options.linkAttr);
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}
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if (this.options.imageAttr) {
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this.imageAttr = getAttr(this.options.imageAttr);
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}
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}
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AutoLink.prototype = {
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constructor: AutoLink,
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/**
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* call relative functions to parse url/email/image
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*
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* @returns {String}
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*/
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parse: function () {
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var shouldReplaceImage = defaultTrue(this.options.image);
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var shouldRelaceEmail = defaultTrue(this.options.email);
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var shouldRelaceBr = defaultTrue(this.options.br);
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var result = "";
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if (!shouldReplaceImage) {
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result = this.string.replace(re.url, this.formatURLMatch.bind(this));
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} else {
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result = this.string.replace(re.url, this.formatIMGMatch.bind(this));
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}
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if (shouldRelaceEmail) {
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result = this.formatEmailMatch.call(this, result);
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}
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if (shouldRelaceBr) {
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result = result.replace(/\r?\n/g, "<br />");
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}
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return result;
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},
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/**
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* @param {String} match
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* @returns {String} Offset 1
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*/
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formatURLMatch: function (match, p1) {
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match = prepHTTP(match.trim());
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if (this.options.cloudmusic || this.options.embed) {
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if (match.indexOf("music.163.com/#/song?id=") > -1) {
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return match.replace(
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re.cloudmusic,
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p1 +
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'<iframe frameborder="no" border="0" marginwidth="0" marginheight="0" width=330 height=86 src="http://music.163.com/outchain/player?type=2&id=$1&auto=1&height=66"></iframe>'
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);
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}
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}
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if (this.options.kickstarter || this.options.embed) {
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if (re.kickstarter.test(match)) {
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return match.replace(
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re.kickstarter,
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p1 +
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'<iframe width="480" height="360" src="$1/widget/video.html" frameborder="0" scrolling="no"> </iframe>'
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);
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}
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}
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if (this.options.vimeo || this.options.embed) {
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if (re.vimeo.test(match)) {
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return match.replace(
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re.vimeo,
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p1 +
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'<iframe width="500" height="281" src="https://player.vimeo.com/video/$1" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>'
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);
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}
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}
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if (this.options.youtube || this.options.embed) {
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if (re.youtube.test(match)) {
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return match.replace(
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re.youtube,
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p1 +
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'<iframe width="560" height="315" src="https://www.youtube.com/embed/$1" frameborder="0" allowfullscreen></iframe>'
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);
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}
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}
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if (this.options.youku || this.options.embed) {
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if (re.youku.test(match)) {
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return match.replace(
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re.youku,
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p1 +
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'<iframe height=498 width=510 src="http://player.youku.com/embed/$1" frameborder=0 allowfullscreen></iframe>'
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);
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}
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}
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var text = this.options.removeHTTP ? removeHTTP(match) : match;
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return (
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p1 +
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'<a href="' +
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match +
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'"' +
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this.attrs +
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this.linkAttr +
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">" +
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text +
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"</a>"
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);
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},
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/**
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* @param {String} match
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* @param {String} Offset 1
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*/
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formatIMGMatch: function (match, p1) {
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match = match.trim();
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var isIMG = re.image.test(match);
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if (isIMG) {
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return (
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p1 +
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'<img src="' +
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prepHTTP(match.trim()) +
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'"' +
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this.attrs +
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this.imageAttr +
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"/>"
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);
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}
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return this.formatURLMatch(match, p1);
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},
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/**
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* @param {String} text
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*/
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formatEmailMatch: function (text) {
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return text.replace(
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re.email,
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'<a href="mailto:$&"' + this.attrs + this.linkAttr + ">$&</a>"
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);
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},
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};
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/**
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* return true if undefined
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* else return itself
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*
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* @param {Boolean} val
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* @returns {Boolean}
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*/
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function defaultTrue(val) {
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return typeof val === "undefined" ? true : val;
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}
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/**
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* parse attrs from object
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*
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* @param {Object} obj
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* @returns {Stirng}
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*/
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function getAttr(obj) {
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var attr = "";
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for (var key in obj) {
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if (key) {
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attr += " " + key + '="' + obj[key] + '"';
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}
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}
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return attr;
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}
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/**
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* @param {String} url
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* @returns {String}
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*/
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function prepHTTP(url) {
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if (url.substring(0, 4) !== "http" && url.substring(0, 2) !== "//") {
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return "http://" + url;
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}
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return url;
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}
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/**
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* @param {String} url
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* @returns {String}
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*/
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function removeHTTP(url) {
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return url.replace(re.http, "");
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}
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var tagsToReplace = {
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"&": "&",
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"<": "<",
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">": ">",
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};
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/**
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* Replace tag if should be replace
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*
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* @param {String} tag
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* @returns {String}
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*/
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function replaceTag(tag) {
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return tagsToReplace[tag] || tag;
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}
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/**
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* Make string safe by replacing html tag
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*
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* @param {String} str
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* @returns {String}
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*/
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function safe_tags_replace(str) {
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return str.replace(/[&<>]/g, replaceTag);
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}
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/**
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* return an instance of AutoLink
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*
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* @param {String} string
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* @param {Object} options
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* @returns {Object}
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*/
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function autoLink(string, options) {
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return new AutoLink(string, options).parse();
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}
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//export default autoLink
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