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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # visualfuzzer 2 | A visual fuzzer written in NodeJS to find Zalgo characters 3 | -------------------------------------------------------------------------------- /index.php: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Visual unicode fuzzer 6 | 27 | 28 | 29 |
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32 | 40 | 41 | 42 | -------------------------------------------------------------------------------- /visualfuzzer.js: -------------------------------------------------------------------------------- 1 | const PNGReader = require('png.js'); 2 | const puppeteer = require('puppeteer'); 3 | 4 | function isWhite(pixel) { 5 | if(pixel[0] === 255 && pixel[1] === 255 && pixel[2] === 255) { 6 | return true; 7 | } else { 8 | return false; 9 | } 10 | } 11 | 12 | function isInRange(x,y) { 13 | if(y <= 120) { 14 | return true; 15 | } 16 | if(y >= 220) { 17 | return true; 18 | } 19 | if(x <= 180) { 20 | return true; 21 | } 22 | return false; 23 | } 24 | 25 | async function fuzzBrowser(writeStream, page, chr1, chr2) { 26 | if(typeof chr2 !== 'undefined') { 27 | await page.goto('http://localhost/visualfuzzer/index.php?'+chr1+','+chr2); 28 | } else { 29 | await page.goto('http://localhost/visualfuzzer/index.php?'+chr1); 30 | } 31 | await page.screenshot({clip:{x:0,y:0,width: 400,height: 300}}).then((buf)=>{ 32 | var reader = new PNGReader(buf); 33 | reader.parse(function(err, png){ 34 | if(err) throw err; 35 | outerLoop:for(let x=0;x<400;x++) { 36 | for(let y=0;y<300;y++) { 37 | if(!isWhite(png.getPixel(x,y)) && isInRange(x,y)) { 38 | if(typeof chr2 !== 'undefined') { 39 | writeStream.write(chr1+','+chr2+'\n'); 40 | console.log('Interesting chars: '+chr1+','+chr2); 41 | } else { 42 | writeStream.write(chr1+'\n'); 43 | console.log('Interesting char: '+chr1); 44 | } 45 | break outerLoop; 46 | } 47 | } 48 | } 49 | }); 50 | }); 51 | } 52 | 53 | (async () => { 54 | const browser = await puppeteer.launch(); 55 | const page = await browser.newPage(); 56 | const singleChars = {834:1,1425:1,1427:1,1430:1,1434:1,1435:1,1442:1,1443:1,1444:1,1445:1,1446:1,1447:1, 57 | 1450:1,1453:1,1557:1,1623:1,1626:1,3633:1,3636:1,3637:1,3638:1,3639:1,3640:1,3641:1, 58 | 3642:1,3655:1,3656:1,3657:1,3658:1,3659:1,3660:1,3661:1,3662:1}; 59 | const fs = require('fs'); 60 | let writeStream = fs.createWriteStream('logs.txt', {flags: 'a'}); 61 | /* 62 | for(let i=0;i<=0xffff;i++) { 63 | process.stdout.write("Fuzzing chars "+i+"\r"); 64 | await fuzzBrowser(writeStream, page, i,).catch(err=>{ 65 | console.log("Failed fuzzing browser:"+err); 66 | }); 67 | } 68 | */ 69 | for(let i=768;i<=879;i++) { 70 | for(let j=768;j<=879;j++) { 71 | if(singleChars[i] || singleChars[j]) { 72 | continue; 73 | } 74 | process.stdout.write("Fuzzing chars "+i+","+j+" \r"); 75 | await fuzzBrowser(writeStream, page, i, j).catch(err=>{ 76 | console.log("Failed fuzzing browser:"+err); 77 | }); 78 | } 79 | } 80 | await browser.close(); 81 | await writeStream.end(); 82 | })(); 83 | --------------------------------------------------------------------------------