Initial commit
This commit is contained in:
CBenni
commit
b200b9c873
6 changed files with 768 additions and 0 deletions
5
.gitignore
vendored
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5
.gitignore
vendored
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config.json
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node_modules
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*.log
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run_forever
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package-lock.json
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BIN
BeeTemplate.png
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BIN
BeeTemplate.png
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Binary file not shown.
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After Width: | Height: | Size: 202 KiB |
6
config.default.json
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6
config.default.json
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{
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"discord": {
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"token": "<discord bot token>",
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"client_id": "<discord client id>"
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}
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}
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169
index.js
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169
index.js
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var express = require("express");
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var request = require("request");
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var Discord = require('discord.js');
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const Canvas = require("canvas");
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const Image = Canvas.Image;
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const twemoji = require("./twemoji");
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var app = express()
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var config = require("./config");
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var cache = {};
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const beeTemplate = new Image();
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beeTemplate.src = "./BeeTemplate.png";
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function bee(url, size) {
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return new Promise((resolve,reject)=>{
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console.log("Getting "+url);
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if(url) {
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request.get({url:url, encoding: null}, function(e, r, data) {
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if(e) {
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reject({status: (r && r.statusCode || 500), error: e});
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return;
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}
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var img = new Image();
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img.src = data;
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console.log("image loaded");
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var width = img.width;
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var height = img.height;
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if(size && size.height) {
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height = size.height;
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if(!size.width) width = width * size.height / img.height;
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}
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if(size && size.width) {
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width = size.width;
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if(!size.height) height = height * size.width / img.width;
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}
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const leftOffset = 475.0; // relative to bee template width
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const widthTarget = 600.0; // relative to bee template width
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const bottomTarget = 530; // relative to bee template height
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const beeScale = width / widthTarget; // scale the bee to fit the image
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const resultingWidth = beeTemplate.width * beeScale;
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let resultingHeight = beeTemplate.height * beeScale;
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let imgTop = bottomTarget * beeScale - height; // naive top center position
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if(imgTop < 0) {
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resultingHeight -= imgTop;
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imgTop = 0;
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}
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const resultingImgTop = imgTop;
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const resultingImgLeft = leftOffset * beeScale - width / 2.0;
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const resultingBeeTop = resultingHeight - beeTemplate.height * beeScale;
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const resultingBeeLeft = 0.0;
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var canvas = new Canvas(resultingWidth, resultingHeight);
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var ctx = canvas.getContext("2d");
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console.log("Drawing first image")
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try {
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ctx.drawImage(beeTemplate, resultingBeeLeft, resultingBeeTop, resultingWidth, beeTemplate.height * beeScale);
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} catch(err) {
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reject({status: 400, error: "Invalid template"})
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}
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console.log("Drawing second image")
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try {
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ctx.drawImage(img, resultingImgLeft, resultingImgTop, width, height);
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} catch(err) {
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reject({status: 400, error: "Invalid image"})
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}
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console.log("Drawing done.")
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// return the image and cache it
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resolve(canvas);
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});
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} else {
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reject({status: 400, error: "No url specified"});
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}
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});
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}
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const circleScale = 0.4;
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const lineWidthScale = 0.2;
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const lowerRightFactor = 0.5 + 0.7071*circleScale; // %-ual location of the lower right end of the strikethrough line
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const upperLeftFactor = 0.5 - 0.7071*circleScale; // %-ual location of the upper left end of the strikethrough line
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app.get("/bee/", function(req, res) {
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bee(req.query.url).then((canvas)=>{
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console.log(canvas)
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res.setHeader('Content-Type', 'image/png');
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canvas.pngStream().pipe(res);
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}).catch((err)=>{
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res.status(err.status).end(err.error);
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})
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});
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app.listen(3002, function () {
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console.log('Beebot app listening on port 3002!')
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})
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// Discord stuff
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var client = new Discord.Client({
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autoReconnect: true
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});
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// manage roles permission is required
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const invitelink = 'https://discordapp.com/oauth2/authorize?client_id='
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+ config.discord.client_id + '&scope=bot&permissions=0';
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const authlink = 'https://discordapp.com/oauth2/authorize?client_id='
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+ config.discord.client_id + '&scope=email';
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console.log("Bot invite link: "+invitelink);
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client.login(config.discord.token).catch(function (error) {
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if (error) {
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console.error("Couldn't login: ", error);
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process.exit(15);
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}
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});
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function findEmoji(str) {
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const discordEmote = /<:(\w+):(\d+)>/g.exec(str)
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if(discordEmote) {
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return {
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name: discordEmote[1],
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id: discordEmote[2],
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url: `https://cdn.discordapp.com/emojis/${discordEmote[2]}.png`
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}
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}
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let unicodeEmoji;
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twemoji.parse(str, (name, emoji) =>{
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if(unicodeEmoji) return false;
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unicodeEmoji = {
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name,
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id: name,
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url: emoji.base + emoji.size + "/" + name + emoji.ext
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}
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return false;
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});
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return unicodeEmoji;
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}
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client.on('message', function (message) {
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console.log(message.cleanContent);
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if (message.cleanContent.startsWith("/bee")) {
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// get emoji from message
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const emoji = findEmoji(message.cleanContent);
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if(emoji) bee(emoji.url).then(canvas => {
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var messageOptions = {
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files: [
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{attachment: canvas.toBuffer(), name: emoji.name.toUpperCase()+"DETECTED.png"}
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]
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}
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message.channel.send("", messageOptions);
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});
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}
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});
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17
package.json
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17
package.json
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{
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"name": "bannedbot",
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"version": "1.0.0",
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"description": "",
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"main": "index.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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},
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"author": "",
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"license": "ISC",
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"dependencies": {
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"canvas": "^1.6.5",
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"discord.js": "^11.1.0",
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"express": "^4.15.2",
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"request": "^2.81.0"
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}
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}
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571
twemoji.js
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571
twemoji.js
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var location = {};
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var document = {};
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/*jslint indent: 2, browser: true, bitwise: true, plusplus: true */
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var twemoji = (function (
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/*! Copyright Twitter Inc. and other contributors. Licensed under MIT *//*
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https://github.com/twitter/twemoji/blob/gh-pages/LICENSE
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*/
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// WARNING: this file is generated automatically via
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// `node twemoji-generator.js`
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// please update its `createTwemoji` function
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// at the bottom of the same file instead.
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) {
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'use strict';
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/*jshint maxparams:4 */
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var
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// the exported module object
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twemoji = {
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/////////////////////////
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// properties //
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/////////////////////////
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// default assets url, by default will be Twitter Inc. CDN
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base: 'https://twemoji.maxcdn.com/2/',
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// default assets file extensions, by default '.png'
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ext: '.png',
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// default assets/folder size, by default "72x72"
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// available via Twitter CDN: 72
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size: '72x72',
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// default class name, by default 'emoji'
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className: 'emoji',
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// basic utilities / helpers to convert code points
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// to JavaScript surrogates and vice versa
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convert: {
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/**
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* Given an HEX codepoint, returns UTF16 surrogate pairs.
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*
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* @param string generic codepoint, i.e. '1F4A9'
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* @return string codepoint transformed into utf16 surrogates pair,
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* i.e. \uD83D\uDCA9
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*
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* @example
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* twemoji.convert.fromCodePoint('1f1e8');
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* // "\ud83c\udde8"
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*
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* '1f1e8-1f1f3'.split('-').map(twemoji.convert.fromCodePoint).join('')
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* // "\ud83c\udde8\ud83c\uddf3"
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*/
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fromCodePoint: fromCodePoint,
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/**
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* Given UTF16 surrogate pairs, returns the equivalent HEX codepoint.
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*
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* @param string generic utf16 surrogates pair, i.e. \uD83D\uDCA9
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* @param string optional separator for double code points, default='-'
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* @return string utf16 transformed into codepoint, i.e. '1F4A9'
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*
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* @example
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* twemoji.convert.toCodePoint('\ud83c\udde8\ud83c\uddf3');
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* // "1f1e8-1f1f3"
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*
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* twemoji.convert.toCodePoint('\ud83c\udde8\ud83c\uddf3', '~');
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* // "1f1e8~1f1f3"
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*/
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toCodePoint: toCodePoint
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},
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/////////////////////////
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// methods //
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/////////////////////////
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/**
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* User first: used to remove missing images
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* preserving the original text intent when
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* a fallback for network problems is desired.
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* Automatically added to Image nodes via DOM
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* It could be recycled for string operations via:
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* $('img.emoji').on('error', twemoji.onerror)
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*/
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onerror: function onerror() {
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if (this.parentNode) {
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this.parentNode.replaceChild(createText(this.alt, false), this);
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}
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},
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/**
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* Main method/logic to generate either <img> tags or HTMLImage nodes.
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* "emojify" a generic text or DOM Element.
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*
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* @overloads
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*
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* String replacement for `innerHTML` or server side operations
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* twemoji.parse(string);
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* twemoji.parse(string, Function);
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* twemoji.parse(string, Object);
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*
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* HTMLElement tree parsing for safer operations over existing DOM
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* twemoji.parse(HTMLElement);
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* twemoji.parse(HTMLElement, Function);
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* twemoji.parse(HTMLElement, Object);
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*
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* @param string|HTMLElement the source to parse and enrich with emoji.
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*
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* string replace emoji matches with <img> tags.
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* Mainly used to inject emoji via `innerHTML`
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* It does **not** parse the string or validate it,
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* it simply replaces found emoji with a tag.
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* NOTE: be sure this won't affect security.
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*
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* HTMLElement walk through the DOM tree and find emoji
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* that are inside **text node only** (nodeType === 3)
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* Mainly used to put emoji in already generated DOM
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* without compromising surrounding nodes and
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* **avoiding** the usage of `innerHTML`.
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* NOTE: Using DOM elements instead of strings should
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* improve security without compromising too much
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* performance compared with a less safe `innerHTML`.
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*
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* @param Function|Object [optional]
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* either the callback that will be invoked or an object
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* with all properties to use per each found emoji.
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*
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* Function if specified, this will be invoked per each emoji
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* that has been found through the RegExp except
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* those follwed by the invariant \uFE0E ("as text").
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* Once invoked, parameters will be:
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*
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* iconId:string the lower case HEX code point
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* i.e. "1f4a9"
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*
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* options:Object all info for this parsing operation
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*
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* variant:char the optional \uFE0F ("as image")
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* variant, in case this info
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* is anyhow meaningful.
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* By default this is ignored.
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*
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* If such callback will return a falsy value instead
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* of a valid `src` to use for the image, nothing will
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* actually change for that specific emoji.
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*
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*
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* Object if specified, an object containing the following properties
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*
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* callback Function the callback to invoke per each found emoji.
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* base string the base url, by default twemoji.base
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* ext string the image extension, by default twemoji.ext
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* size string the assets size, by default twemoji.size
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*
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* @example
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*
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* twemoji.parse("I \u2764\uFE0F emoji!");
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* // I <img class="emoji" draggable="false" alt="❤️" src="/assets/2764.gif"/> emoji!
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*
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*
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* twemoji.parse("I \u2764\uFE0F emoji!", function(iconId, options) {
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* return '/assets/' + iconId + '.gif';
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* });
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* // I <img class="emoji" draggable="false" alt="❤️" src="/assets/2764.gif"/> emoji!
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*
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*
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* twemoji.parse("I \u2764\uFE0F emoji!", {
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* size: 72,
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* callback: function(iconId, options) {
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* return '/assets/' + options.size + '/' + iconId + options.ext;
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* }
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* });
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* // I <img class="emoji" draggable="false" alt="❤️" src="/assets/72x72/2764.png"/> emoji!
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||||
*
|
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*/
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parse: parse,
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|
||||
/**
|
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* Given a string, invokes the callback argument
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* per each emoji found in such string.
|
||||
* This is the most raw version used by
|
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* the .parse(string) method itself.
|
||||
*
|
||||
* @param string generic string to parse
|
||||
* @param Function a generic callback that will be
|
||||
* invoked to replace the content.
|
||||
* This calback wil receive standard
|
||||
* String.prototype.replace(str, callback)
|
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* arguments such:
|
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* callback(
|
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* rawText, // the emoji match
|
||||
* );
|
||||
*
|
||||
* and others commonly received via replace.
|
||||
*/
|
||||
replace: replace,
|
||||
|
||||
/**
|
||||
* Simplify string tests against emoji.
|
||||
*
|
||||
* @param string some text that might contain emoji
|
||||
* @return boolean true if any emoji was found, false otherwise.
|
||||
*
|
||||
* @example
|
||||
*
|
||||
* if (twemoji.test(someContent)) {
|
||||
* console.log("emoji All The Things!");
|
||||
* }
|
||||
*/
|
||||
test: test
|
||||
},
|
||||
|
||||
// used to escape HTML special chars in attributes
|
||||
escaper = {
|
||||
'&': '&',
|
||||
'<': '<',
|
||||
'>': '>',
|
||||
"'": ''',
|
||||
'"': '"'
|
||||
},
|
||||
|
||||
// RegExp based on emoji's official Unicode standards
|
||||
// http://www.unicode.org/Public/UNIDATA/EmojiSources.txt
|
||||
re = /\ud83d[\udc68-\udc69](?:\ud83c[\udffb-\udfff])?\u200d(?:\u2695\ufe0f|\u2696\ufe0f|\u2708\ufe0f|\ud83c[\udf3e\udf73\udf93\udfa4\udfa8\udfeb\udfed]|\ud83d[\udcbb\udcbc\udd27\udd2c\ude80\ude92])|(?:\ud83c[\udfcb\udfcc]|\ud83d\udd75|\u26f9)(?:\ufe0f|\ud83c[\udffb-\udfff])\u200d[\u2640\u2642]\ufe0f|(?:\ud83c[\udfc3\udfc4\udfca]|\ud83d[\udc6e\udc71\udc73\udc77\udc81\udc82\udc86\udc87\ude45-\ude47\ude4b\ude4d\ude4e\udea3\udeb4-\udeb6]|\ud83e[\udd26\udd37-\udd39\udd3d\udd3e\uddd6-\udddd])(?:\ud83c[\udffb-\udfff])?\u200d[\u2640\u2642]\ufe0f|\ud83d\udc68\u200d\u2764\ufe0f\u200d\ud83d\udc8b\u200d\ud83d\udc68|\ud83d\udc68\u200d\ud83d\udc68\u200d\ud83d\udc66\u200d\ud83d\udc66|\ud83d\udc68\u200d\ud83d\udc68\u200d\ud83d\udc67\u200d\ud83d[\udc66\udc67]|\ud83d\udc68\u200d\ud83d\udc69\u200d\ud83d\udc66\u200d\ud83d\udc66|\ud83d\udc68\u200d\ud83d\udc69\u200d\ud83d\udc67\u200d\ud83d[\udc66\udc67]|\ud83d\udc69\u200d\u2764\ufe0f\u200d\ud83d\udc8b\u200d\ud83d[\udc68\udc69]|\ud83d\udc69\u200d\ud83d\udc69\u200d\ud83d\udc66\u200d\ud83d\udc66|\ud83d\udc69\u200d\ud83d\udc69\u200d\ud83d\udc67\u200d\ud83d[\udc66\udc67]|\ud83d\udc68\u200d\u2764\ufe0f\u200d\ud83d\udc68|\ud83d\udc68\u200d\ud83d\udc66\u200d\ud83d\udc66|\ud83d\udc68\u200d\ud83d\udc67\u200d\ud83d[\udc66\udc67]|\ud83d\udc68\u200d\ud83d\udc68\u200d\ud83d[\udc66\udc67]|\ud83d\udc68\u200d\ud83d\udc69\u200d\ud83d[\udc66\udc67]|\ud83d\udc69\u200d\u2764\ufe0f\u200d\ud83d[\udc68\udc69]|\ud83d\udc69\u200d\ud83d\udc66\u200d\ud83d\udc66|\ud83d\udc69\u200d\ud83d\udc67\u200d\ud83d[\udc66\udc67]|\ud83d\udc69\u200d\ud83d\udc69\u200d\ud83d[\udc66\udc67]|\ud83c\udff3\ufe0f\u200d\ud83c\udf08|\ud83c\udff4\u200d\u2620\ufe0f|\ud83d\udc41\u200d\ud83d\udde8|\ud83d\udc68\u200d\ud83d[\udc66\udc67]|\ud83d\udc69\u200d\ud83d[\udc66\udc67]|\ud83d\udc6f\u200d\u2640\ufe0f|\ud83d\udc6f\u200d\u2642\ufe0f|\ud83e\udd3c\u200d\u2640\ufe0f|\ud83e\udd3c\u200d\u2642\ufe0f|\ud83e\uddde\u200d\u2640\ufe0f|\ud83e\uddde\u200d\u2642\ufe0f|\ud83e\udddf\u200d\u2640\ufe0f|\ud83e\udddf\u200d\u2642\ufe0f|(?:[\u0023\u002a\u0030-\u0039])\ufe0f?\u20e3|(?:(?:\ud83c[\udfcb\udfcc]|\ud83d[\udd74\udd75\udd90]|[\u261d\u26f7\u26f9\u270c\u270d])(?:\ufe0f|(?!\ufe0e))|\ud83c[\udf85\udfc2-\udfc4\udfc7\udfca]|\ud83d[\udc42\udc43\udc46-\udc50\udc66-\udc69\udc6e\udc70-\udc78\udc7c\udc81-\udc83\udc85-\udc87\udcaa\udd7a\udd95\udd96\ude45-\ude47\ude4b-\ude4f\udea3\udeb4-\udeb6\udec0\udecc]|\ud83e[\udd18-\udd1c\udd1e\udd1f\udd26\udd30-\udd39\udd3d\udd3e\uddd1-\udddd]|[\u270a\u270b])(?:\ud83c[\udffb-\udfff]|)|\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f|\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc73\udb40\udc63\udb40\udc74\udb40\udc7f|\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc77\udb40\udc6c\udb40\udc73\udb40\udc7f|\ud83c\udde6\ud83c[\udde8-\uddec\uddee\uddf1\uddf2\uddf4\uddf6-\uddfa\uddfc\uddfd\uddff]|\ud83c\udde7\ud83c[\udde6\udde7\udde9-\uddef\uddf1-\uddf4\uddf6-\uddf9\uddfb\uddfc\uddfe\uddff]|\ud83c\udde8\ud83c[\udde6\udde8\udde9\uddeb-\uddee\uddf0-\uddf5\uddf7\uddfa-\uddff]|\ud83c\udde9\ud83c[\uddea\uddec\uddef\uddf0\uddf2\uddf4\uddff]|\ud83c\uddea\ud83c[\udde6\udde8\uddea\uddec\udded\uddf7-\uddfa]|\ud83c\uddeb\ud83c[\uddee-\uddf0\uddf2\uddf4\uddf7]|\ud83c\uddec\ud83c[\udde6\udde7\udde9-\uddee\uddf1-\uddf3\uddf5-\uddfa\uddfc\uddfe]|\ud83c\udded\ud83c[\uddf0\uddf2\uddf3\uddf7\uddf9\uddfa]|\ud83c\uddee\ud83c[\udde8-\uddea\uddf1-\uddf4\uddf6-\uddf9]|\ud83c\uddef\ud83c[\uddea\uddf2\uddf4\uddf5]|\ud83c\uddf0\ud83c[\uddea\uddec-\uddee\uddf2\uddf3\uddf5\uddf7\uddfc\uddfe\uddff]|\ud83c\uddf1\ud83c[\udde6-\udde8\uddee\uddf0\uddf7-\uddfb\uddfe]|\ud83c\uddf2\ud83c[\udde6\udde8-\udded\uddf0-\uddff]|\ud83c\uddf3\ud83c[\udde6\udde8\uddea-\uddec\uddee\uddf1\uddf4\uddf5\uddf7\uddfa\uddff]|\ud83c\uddf4\ud83c\uddf2|\ud83c\uddf5\ud83c[\udde6\uddea-\udded\uddf0-\uddf3\uddf7-\uddf9\uddfc\uddfe]|\ud83c\uddf6\ud83c\udde6|\ud83c\uddf7\ud83c[\uddea\uddf4\uddf8\uddfa\uddfc]|\ud83c\uddf8\ud83c[\udde6-\uddea\uddec-\uddf4\uddf7-\uddf9\uddfb\uddfd-\uddff]|\ud83c\uddf9\ud83c[\udde6\udde8\udde9\uddeb-\udded\uddef-\uddf4\uddf7\uddf9\uddfb\uddfc\uddff]|\ud83c\uddfa\ud83c[\udde6\uddec\uddf2\uddf3\uddf8\uddfe\uddff]|\ud83c\uddfb\ud83c[\udde6\udde8\uddea\uddec\uddee\uddf3\uddfa]|\ud83c\uddfc\ud83c[\uddeb\uddf8]|\ud83c\uddfd\ud83c\uddf0|\ud83c\uddfe\ud83c[\uddea\uddf9]|\ud83c\uddff\ud83c[\udde6\uddf2\uddfc]|\ud800\udc00|\ud83c[\udccf\udd8e\udd91-\udd9a\udde6-\uddff\ude01\ude32-\ude36\ude38-\ude3a\ude50\ude51\udf00-\udf20\udf2d-\udf35\udf37-\udf7c\udf7e-\udf84\udf86-\udf93\udfa0-\udfc1\udfc5\udfc6\udfc8\udfc9\udfcf-\udfd3\udfe0-\udff0\udff4\udff8-\udfff]|\ud83d[\udc00-\udc3e\udc40\udc44\udc45\udc51-\udc65\udc6a-\udc6d\udc6f\udc79-\udc7b\udc7d-\udc80\udc84\udc88-\udca9\udcab-\udcfc\udcff-\udd3d\udd4b-\udd4e\udd50-\udd67\udda4\uddfb-\ude44\ude48-\ude4a\ude80-\udea2\udea4-\udeb3\udeb7-\udebf\udec1-\udec5\uded0-\uded2\udeeb\udeec\udef4-\udef8]|\ud83e[\udd10-\udd17\udd1d\udd20-\udd25\udd27-\udd2f\udd3a\udd3c\udd40-\udd45\udd47-\udd4c\udd50-\udd6b\udd80-\udd97\uddc0\uddd0\uddde-\udde6]|[\u23e9-\u23ec\u23f0\u23f3\u2640\u2642\u2695\u26ce\u2705\u2728\u274c\u274e\u2753-\u2755\u2795-\u2797\u27b0\u27bf\ue50a]|(?:\ud83c[\udc04\udd70\udd71\udd7e\udd7f\ude02\ude1a\ude2f\ude37\udf21\udf24-\udf2c\udf36\udf7d\udf96\udf97\udf99-\udf9b\udf9e\udf9f\udfcd\udfce\udfd4-\udfdf\udff3\udff5\udff7]|\ud83d[\udc3f\udc41\udcfd\udd49\udd4a\udd6f\udd70\udd73\udd76-\udd79\udd87\udd8a-\udd8d\udda5\udda8\uddb1\uddb2\uddbc\uddc2-\uddc4\uddd1-\uddd3\udddc-\uddde\udde1\udde3\udde8\uddef\uddf3\uddfa\udecb\udecd-\udecf\udee0-\udee5\udee9\udef0\udef3]|[\u00a9\u00ae\u203c\u2049\u2122\u2139\u2194-\u2199\u21a9\u21aa\u231a\u231b\u2328\u23cf\u23ed-\u23ef\u23f1\u23f2\u23f8-\u23fa\u24c2\u25aa\u25ab\u25b6\u25c0\u25fb-\u25fe\u2600-\u2604\u260e\u2611\u2614\u2615\u2618\u2620\u2622\u2623\u2626\u262a\u262e\u262f\u2638-\u263a\u2648-\u2653\u2660\u2663\u2665\u2666\u2668\u267b\u267f\u2692-\u2694\u2696\u2697\u2699\u269b\u269c\u26a0\u26a1\u26aa\u26ab\u26b0\u26b1\u26bd\u26be\u26c4\u26c5\u26c8\u26cf\u26d1\u26d3\u26d4\u26e9\u26ea\u26f0-\u26f5\u26f8\u26fa\u26fd\u2702\u2708\u2709\u270f\u2712\u2714\u2716\u271d\u2721\u2733\u2734\u2744\u2747\u2757\u2763\u2764\u27a1\u2934\u2935\u2b05-\u2b07\u2b1b\u2b1c\u2b50\u2b55\u3030\u303d\u3297\u3299])(?:\ufe0f|(?!\ufe0e))/g,
|
||||
|
||||
// avoid runtime RegExp creation for not so smart,
|
||||
// not JIT based, and old browsers / engines
|
||||
UFE0Fg = /\uFE0F/g,
|
||||
|
||||
// avoid using a string literal like '\u200D' here because minifiers expand it inline
|
||||
U200D = String.fromCharCode(0x200D),
|
||||
|
||||
// used to find HTML special chars in attributes
|
||||
rescaper = /[&<>'"]/g,
|
||||
|
||||
// nodes with type 1 which should **not** be parsed
|
||||
shouldntBeParsed = /^(?:iframe|noframes|noscript|script|select|style|textarea)$/,
|
||||
|
||||
// just a private shortcut
|
||||
fromCharCode = String.fromCharCode;
|
||||
|
||||
return twemoji;
|
||||
|
||||
|
||||
/////////////////////////
|
||||
// private functions //
|
||||
// declaration //
|
||||
/////////////////////////
|
||||
|
||||
/**
|
||||
* Shortcut to create text nodes
|
||||
* @param string text used to create DOM text node
|
||||
* @return Node a DOM node with that text
|
||||
*/
|
||||
function createText(text, clean) {
|
||||
return document.createTextNode(clean ? text.replace(UFE0Fg, '') : text);
|
||||
}
|
||||
|
||||
/**
|
||||
* Utility function to escape html attribute text
|
||||
* @param string text use in HTML attribute
|
||||
* @return string text encoded to use in HTML attribute
|
||||
*/
|
||||
function escapeHTML(s) {
|
||||
return s.replace(rescaper, replacer);
|
||||
}
|
||||
|
||||
/**
|
||||
* Default callback used to generate emoji src
|
||||
* based on Twitter CDN
|
||||
* @param string the emoji codepoint string
|
||||
* @param string the default size to use, i.e. "36x36"
|
||||
* @return string the image source to use
|
||||
*/
|
||||
function defaultImageSrcGenerator(icon, options) {
|
||||
return ''.concat(options.base, options.size, '/', icon, options.ext);
|
||||
}
|
||||
|
||||
/**
|
||||
* Given a generic DOM nodeType 1, walk through all children
|
||||
* and store every nodeType 3 (#text) found in the tree.
|
||||
* @param Element a DOM Element with probably some text in it
|
||||
* @param Array the list of previously discovered text nodes
|
||||
* @return Array same list with new discovered nodes, if any
|
||||
*/
|
||||
function grabAllTextNodes(node, allText) {
|
||||
var
|
||||
childNodes = node.childNodes,
|
||||
length = childNodes.length,
|
||||
subnode,
|
||||
nodeType;
|
||||
while (length--) {
|
||||
subnode = childNodes[length];
|
||||
nodeType = subnode.nodeType;
|
||||
// parse emoji only in text nodes
|
||||
if (nodeType === 3) {
|
||||
// collect them to process emoji later
|
||||
allText.push(subnode);
|
||||
}
|
||||
// ignore all nodes that are not type 1, that are svg, or that
|
||||
// should not be parsed as script, style, and others
|
||||
else if (nodeType === 1 && !('ownerSVGElement' in subnode) &&
|
||||
!shouldntBeParsed.test(subnode.nodeName.toLowerCase())) {
|
||||
grabAllTextNodes(subnode, allText);
|
||||
}
|
||||
}
|
||||
return allText;
|
||||
}
|
||||
|
||||
/**
|
||||
* Used to both remove the possible variant
|
||||
* and to convert utf16 into code points.
|
||||
* If there is a zero-width-joiner (U+200D), leave the variants in.
|
||||
* @param string the raw text of the emoji match
|
||||
* @return string the code point
|
||||
*/
|
||||
function grabTheRightIcon(rawText) {
|
||||
// if variant is present as \uFE0F
|
||||
return toCodePoint(rawText.indexOf(U200D) < 0 ?
|
||||
rawText.replace(UFE0Fg, '') :
|
||||
rawText
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* DOM version of the same logic / parser:
|
||||
* emojify all found sub-text nodes placing images node instead.
|
||||
* @param Element generic DOM node with some text in some child node
|
||||
* @param Object options containing info about how to parse
|
||||
*
|
||||
* .callback Function the callback to invoke per each found emoji.
|
||||
* .base string the base url, by default twemoji.base
|
||||
* .ext string the image extension, by default twemoji.ext
|
||||
* .size string the assets size, by default twemoji.size
|
||||
*
|
||||
* @return Element same generic node with emoji in place, if any.
|
||||
*/
|
||||
function parseNode(node, options) {
|
||||
var
|
||||
allText = grabAllTextNodes(node, []),
|
||||
length = allText.length,
|
||||
attrib,
|
||||
attrname,
|
||||
modified,
|
||||
fragment,
|
||||
subnode,
|
||||
text,
|
||||
match,
|
||||
i,
|
||||
index,
|
||||
img,
|
||||
rawText,
|
||||
iconId,
|
||||
src;
|
||||
while (length--) {
|
||||
modified = false;
|
||||
fragment = document.createDocumentFragment();
|
||||
subnode = allText[length];
|
||||
text = subnode.nodeValue;
|
||||
i = 0;
|
||||
while ((match = re.exec(text))) {
|
||||
index = match.index;
|
||||
if (index !== i) {
|
||||
fragment.appendChild(
|
||||
createText(text.slice(i, index), true)
|
||||
);
|
||||
}
|
||||
rawText = match[0];
|
||||
iconId = grabTheRightIcon(rawText);
|
||||
i = index + rawText.length;
|
||||
src = options.callback(iconId, options);
|
||||
if (src) {
|
||||
img = new Image();
|
||||
img.onerror = options.onerror;
|
||||
img.setAttribute('draggable', 'false');
|
||||
attrib = options.attributes(rawText, iconId);
|
||||
for (attrname in attrib) {
|
||||
if (
|
||||
attrib.hasOwnProperty(attrname) &&
|
||||
// don't allow any handlers to be set + don't allow overrides
|
||||
attrname.indexOf('on') !== 0 &&
|
||||
!img.hasAttribute(attrname)
|
||||
) {
|
||||
img.setAttribute(attrname, attrib[attrname]);
|
||||
}
|
||||
}
|
||||
img.className = options.className;
|
||||
img.alt = rawText;
|
||||
img.src = src;
|
||||
modified = true;
|
||||
fragment.appendChild(img);
|
||||
}
|
||||
if (!img) fragment.appendChild(createText(rawText, false));
|
||||
img = null;
|
||||
}
|
||||
// is there actually anything to replace in here ?
|
||||
if (modified) {
|
||||
// any text left to be added ?
|
||||
if (i < text.length) {
|
||||
fragment.appendChild(
|
||||
createText(text.slice(i), true)
|
||||
);
|
||||
}
|
||||
// replace the text node only, leave intact
|
||||
// anything else surrounding such text
|
||||
subnode.parentNode.replaceChild(fragment, subnode);
|
||||
}
|
||||
}
|
||||
return node;
|
||||
}
|
||||
|
||||
/**
|
||||
* String/HTML version of the same logic / parser:
|
||||
* emojify a generic text placing images tags instead of surrogates pair.
|
||||
* @param string generic string with possibly some emoji in it
|
||||
* @param Object options containing info about how to parse
|
||||
*
|
||||
* .callback Function the callback to invoke per each found emoji.
|
||||
* .base string the base url, by default twemoji.base
|
||||
* .ext string the image extension, by default twemoji.ext
|
||||
* .size string the assets size, by default twemoji.size
|
||||
*
|
||||
* @return the string with <img tags> replacing all found and parsed emoji
|
||||
*/
|
||||
function parseString(str, options) {
|
||||
return replace(str, function (rawText) {
|
||||
var
|
||||
ret = rawText,
|
||||
iconId = grabTheRightIcon(rawText),
|
||||
src = options.callback(iconId, options),
|
||||
attrib,
|
||||
attrname;
|
||||
if (src) {
|
||||
// recycle the match string replacing the emoji
|
||||
// with its image counter part
|
||||
ret = '<img '.concat(
|
||||
'class="', options.className, '" ',
|
||||
'draggable="false" ',
|
||||
// needs to preserve user original intent
|
||||
// when variants should be copied and pasted too
|
||||
'alt="',
|
||||
rawText,
|
||||
'"',
|
||||
' src="',
|
||||
src,
|
||||
'"'
|
||||
);
|
||||
attrib = options.attributes(rawText, iconId);
|
||||
for (attrname in attrib) {
|
||||
if (
|
||||
attrib.hasOwnProperty(attrname) &&
|
||||
// don't allow any handlers to be set + don't allow overrides
|
||||
attrname.indexOf('on') !== 0 &&
|
||||
ret.indexOf(' ' + attrname + '=') === -1
|
||||
) {
|
||||
ret = ret.concat(' ', attrname, '="', escapeHTML(attrib[attrname]), '"');
|
||||
}
|
||||
}
|
||||
ret = ret.concat('/>');
|
||||
}
|
||||
return ret;
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Function used to actually replace HTML special chars
|
||||
* @param string HTML special char
|
||||
* @return string encoded HTML special char
|
||||
*/
|
||||
function replacer(m) {
|
||||
return escaper[m];
|
||||
}
|
||||
|
||||
/**
|
||||
* Default options.attribute callback
|
||||
* @return null
|
||||
*/
|
||||
function returnNull() {
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* Given a generic value, creates its squared counterpart if it's a number.
|
||||
* As example, number 36 will return '36x36'.
|
||||
* @param any a generic value.
|
||||
* @return any a string representing asset size, i.e. "36x36"
|
||||
* only in case the value was a number.
|
||||
* Returns initial value otherwise.
|
||||
*/
|
||||
function toSizeSquaredAsset(value) {
|
||||
return typeof value === 'number' ?
|
||||
value + 'x' + value :
|
||||
value;
|
||||
}
|
||||
|
||||
|
||||
/////////////////////////
|
||||
// exported functions //
|
||||
// declaration //
|
||||
/////////////////////////
|
||||
|
||||
function fromCodePoint(codepoint) {
|
||||
var code = typeof codepoint === 'string' ?
|
||||
parseInt(codepoint, 16) : codepoint;
|
||||
if (code < 0x10000) {
|
||||
return fromCharCode(code);
|
||||
}
|
||||
code -= 0x10000;
|
||||
return fromCharCode(
|
||||
0xD800 + (code >> 10),
|
||||
0xDC00 + (code & 0x3FF)
|
||||
);
|
||||
}
|
||||
|
||||
function parse(what, how) {
|
||||
if (!how || typeof how === 'function') {
|
||||
how = {callback: how};
|
||||
}
|
||||
// if first argument is string, inject html <img> tags
|
||||
// otherwise use the DOM tree and parse text nodes only
|
||||
return (typeof what === 'string' ? parseString : parseNode)(what, {
|
||||
callback: how.callback || defaultImageSrcGenerator,
|
||||
attributes: typeof how.attributes === 'function' ? how.attributes : returnNull,
|
||||
base: typeof how.base === 'string' ? how.base : twemoji.base,
|
||||
ext: how.ext || twemoji.ext,
|
||||
size: how.folder || toSizeSquaredAsset(how.size || twemoji.size),
|
||||
className: how.className || twemoji.className,
|
||||
onerror: how.onerror || twemoji.onerror
|
||||
});
|
||||
}
|
||||
|
||||
function replace(text, callback) {
|
||||
return String(text).replace(re, callback);
|
||||
}
|
||||
|
||||
function test(text) {
|
||||
// IE6 needs a reset before too
|
||||
re.lastIndex = 0;
|
||||
var result = re.test(text);
|
||||
re.lastIndex = 0;
|
||||
return result;
|
||||
}
|
||||
|
||||
function toCodePoint(unicodeSurrogates, sep) {
|
||||
var
|
||||
r = [],
|
||||
c = 0,
|
||||
p = 0,
|
||||
i = 0;
|
||||
while (i < unicodeSurrogates.length) {
|
||||
c = unicodeSurrogates.charCodeAt(i++);
|
||||
if (p) {
|
||||
r.push((0x10000 + ((p - 0xD800) << 10) + (c - 0xDC00)).toString(16));
|
||||
p = 0;
|
||||
} else if (0xD800 <= c && c <= 0xDBFF) {
|
||||
p = c;
|
||||
} else {
|
||||
r.push(c.toString(16));
|
||||
}
|
||||
}
|
||||
return r.join(sep || '-');
|
||||
}
|
||||
|
||||
}());
|
||||
module.exports = twemoji;
|
||||
Reference in a new issue