commit e8f88cceacb521abdbb12cb234d5996037c8c910 Author: Mandy Date: Sat Jul 25 21:13:35 2026 +0200 Initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c2658d7 --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +node_modules/ diff --git a/README.md b/README.md new file mode 100644 index 0000000..a25e117 --- /dev/null +++ b/README.md @@ -0,0 +1,7 @@ +# Secret Message Studio + +Lokale Web-App zum Erstellen und Öffnen geheimer Story-Nachrichten mit Base64, +AES-Passwortschutz, QR-Link, Emoji-Code, PNG-Steganografie, Reveal-Effekten, +Secret Inbox, Design-Editor, Passwortgenerator und PWA-Offline-Modus. + +Am besten über einen lokalen Server öffnen, z.B. `http://127.0.0.1:8001/index.html`. diff --git a/icon.svg b/icon.svg new file mode 100644 index 0000000..ff5aeda --- /dev/null +++ b/icon.svg @@ -0,0 +1,8 @@ + + + + + + + + diff --git a/index.html b/index.html new file mode 100644 index 0000000..98297e1 --- /dev/null +++ b/index.html @@ -0,0 +1,2806 @@ + + + + + + Secret Message Studio + + + + + + + + + + + +
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Secret Message Studio

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Baue schöne Story-Codes mit optionaler echter Passwort-Verschlüsselung, QR-Link und Reveal-Effekt.

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+ Echte Verschlüsselung + Mit Passwort wird AES-GCM genutzt. Ohne Passwort bleibt es Base64. +
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Passwort-Stärke erscheint hier.
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+ Passwortstufen +
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Wenn dieses Passwort genutzt wird, erscheint eine zusätzliche Slide.
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Kein Voice-Hinweis.
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Story-Vorlage
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+ Design Editor Pro +
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+ One-Time-Modus + Nach dem Öffnen wird der Code auf diesem Gerät als verbraucht markiert. +
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+ Unsichtbare Story + Im Bild erscheint nur Design und QR, nicht der Textcode. +
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Hier erscheint dein Code.
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Hier erscheint die Nachricht.
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+ + + + diff --git a/manifest.json b/manifest.json new file mode 100644 index 0000000..e905a39 --- /dev/null +++ b/manifest.json @@ -0,0 +1,18 @@ +{ + "name": "Secret Message Studio", + "short_name": "Secret Studio", + "description": "Create encrypted story-ready secret messages with QR, emoji codes, reveal effects, and stego images.", + "start_url": "./index.html", + "scope": "./", + "display": "standalone", + "background_color": "#fff8f0", + "theme_color": "#d83f6a", + "icons": [ + { + "src": "icon.svg", + "sizes": "any", + "type": "image/svg+xml", + "purpose": "any maskable" + } + ] +} diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..2a8446c --- /dev/null +++ b/package-lock.json @@ -0,0 +1,959 @@ +{ + "name": "InstaBase64-main", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "dependencies": { + "canvas": "^3.2.3", + "jsdom": "^29.1.1" + } + }, + "node_modules/@asamuzakjp/css-color": { + "version": "5.1.11", + "resolved": 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+ './icon.svg', + 'https://cdn.jsdelivr.net/npm/qrcode@1.5.4/build/qrcode.min.js', + 'https://cdn.jsdelivr.net/npm/jsqr@1.4.0/dist/jsQR.min.js' +]; + +self.addEventListener('install', (event) => { + event.waitUntil( + caches.open(CACHE_NAME).then((cache) => cache.addAll(ASSETS)).catch(() => undefined) + ); + self.skipWaiting(); +}); + +self.addEventListener('activate', (event) => { + event.waitUntil( + caches.keys().then((keys) => Promise.all( + keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key)) + )) + ); + self.clients.claim(); +}); + +self.addEventListener('fetch', (event) => { + if (event.request.method !== 'GET') return; + event.respondWith( + caches.match(event.request).then((cached) => cached || fetch(event.request).then((response) => { + const copy = response.clone(); + caches.open(CACHE_NAME).then((cache) => cache.put(event.request, copy)).catch(() => undefined); + return response; + }).catch(() => caches.match('./index.html'))) + ); +}); diff --git a/test.mjs b/test.mjs new file mode 100644 index 0000000..8a94cbd --- /dev/null +++ b/test.mjs @@ -0,0 +1,229 @@ +import { test, describe, before } from 'node:test'; +import assert from 'node:assert/strict'; +import fs from 'fs'; +import { JSDOM } from 'jsdom'; +import crypto from 'node:crypto'; + +describe('Secret Message Studio - Comprehensive Test Suite', () => { + let dom; + let window; + let document; + + before(async () => { + const htmlContent = fs.readFileSync('index.html', 'utf8'); + + dom = new JSDOM(htmlContent, { + url: 'http://localhost/index.html', + runScripts: 'dangerously', + beforeParse(win) { + // Polyfill Web Crypto API + Object.defineProperty(win, 'crypto', { + value: crypto.webcrypto, + writable: true, + }); + + // Mock QRCode canvas drawer to prevent external network fetches + win.QRCode = { + toCanvas: (canvas, text, opts) => { + const ctx = canvas.getContext('2d'); + if (ctx) { + ctx.fillStyle = '#000000'; + ctx.fillRect(0, 0, canvas.width, canvas.height); + } + }, + }; + + // Polyfill animationFrame + win.requestAnimationFrame = (cb) => setTimeout(cb, 16); + win.cancelAnimationFrame = (id) => clearTimeout(id); + }, + }); + + window = dom.window; + document = window.document; + + // Allow inline script execution to settle + await new Promise((r) => setTimeout(r, 100)); + }); + + test('DOM elements initialized properly', () => { + assert.ok(document.querySelector('#messageInput'), 'messageInput exists'); + assert.ok(document.querySelector('#createBtn'), 'createBtn exists'); + assert.ok(document.querySelector('#openBtn'), 'openBtn exists'); + assert.ok(document.querySelector('#decodedResult'), 'decodedResult exists'); + }); + + test('Language toggle works (DE -> EN -> DE)', () => { + const deBtn = document.querySelector('[data-lang="de"]'); + const enBtn = document.querySelector('[data-lang="en"]'); + + enBtn.click(); + assert.strictEqual(window.state.lang, 'en'); + assert.strictEqual(document.querySelector('#createBtn').textContent, 'Create'); + + deBtn.click(); + assert.strictEqual(window.state.lang, 'de'); + assert.strictEqual(document.querySelector('#createBtn').textContent, 'Erstellen'); + }); + + test('Tab navigation works (Encode <-> Decode)', () => { + const decodeTab = document.querySelector('[data-tab="decode"]'); + const encodeTab = document.querySelector('[data-tab="encode"]'); + + decodeTab.click(); + assert.strictEqual(window.state.tab, 'decode'); + assert.ok(document.querySelector('#decodeView').classList.contains('active')); + + encodeTab.click(); + assert.strictEqual(window.state.tab, 'encode'); + assert.ok(document.querySelector('#encodeView').classList.contains('active')); + }); + + test('Password Generator button works', () => { + const genBtn = document.querySelector('#generatePasswordBtn'); + const passInput = document.querySelector('#passwordInput'); + const secureToggle = document.querySelector('#secureToggle'); + + genBtn.click(); + assert.ok(passInput.value.length >= 12, 'Password generated with sufficient length'); + assert.strictEqual(secureToggle.checked, true, 'Secure toggle activated'); + }); + + test('Base64 Encoding & Decoding flow', async () => { + document.querySelector('#clearEncodeBtn').click(); + document.querySelector('#messageInput').value = 'Test Secret Message 123'; + document.querySelector('#toInput').value = 'Alice'; + document.querySelector('#fromInput').value = 'Bob'; + + document.querySelector('#createBtn').click(); + + // Give microtask queue time to finish async createPayload + await new Promise((r) => setTimeout(r, 150)); + + assert.ok(window.state.payload.startsWith('sm2.'), 'Payload generated with sm2 prefix'); + const displayCode = window.state.displayCode; + assert.ok(displayCode, 'Display code is present'); + + // Switch to decode and open message with fade mode + document.querySelector('[data-tab="decode"]').click(); + document.querySelector('#revealMode').value = 'fade'; + document.querySelector('#decodeInput').value = displayCode; + + document.querySelector('#openBtn').click(); + await new Promise((r) => setTimeout(r, 200)); + + const resultText = document.querySelector('#decodedResult').textContent; + assert.strictEqual(resultText, 'Test Secret Message 123', 'Message correctly decoded'); + }); + + test('AES Password Encryption & Decryption flow', async () => { + document.querySelector('[data-tab="encode"]').click(); + document.querySelector('#clearEncodeBtn').click(); + + document.querySelector('#messageInput').value = 'Top Secret Encrypted'; + document.querySelector('#passwordInput').value = 'MySuperSecretPass123!'; + document.querySelector('#secureToggle').checked = true; + + document.querySelector('#createBtn').click(); + await new Promise((r) => setTimeout(r, 150)); + + const payload = window.state.payload; + assert.ok(payload.startsWith('sm2.'), 'Encrypted payload created'); + + // Decode with wrong password -> should fail + document.querySelector('[data-tab="decode"]').click(); + document.querySelector('#revealMode').value = 'fade'; + document.querySelector('#decodeInput').value = payload; + document.querySelector('#decodePassword').value = 'WrongPassword'; + + document.querySelector('#openBtn').click(); + await new Promise((r) => setTimeout(r, 200)); + + assert.strictEqual(document.querySelector('#toast').textContent, 'Dieses Geheimnis braucht das richtige Passwort.'); + + // Decode with correct password -> should succeed + document.querySelector('#decodePassword').value = 'MySuperSecretPass123!'; + document.querySelector('#openBtn').click(); + await new Promise((r) => setTimeout(r, 300)); + + assert.strictEqual(document.querySelector('#decodedResult').textContent, 'Top Secret Encrypted'); + }); + + test('Decoy Message flow on wrong password', async () => { + document.querySelector('[data-tab="encode"]').click(); + document.querySelector('#clearEncodeBtn').click(); + + document.querySelector('#messageInput').value = 'Real Secret'; + document.querySelector('#passwordInput').value = 'RealPassword123'; + document.querySelector('#secureToggle').checked = true; + document.querySelector('#decoyInput').value = 'Fake Decoy Message'; + + document.querySelector('#createBtn').click(); + await new Promise((r) => setTimeout(r, 150)); + + const payload = window.state.payload; + + // Decode with wrong password -> should display Decoy message + document.querySelector('[data-tab="decode"]').click(); + document.querySelector('#revealMode').value = 'fade'; + document.querySelector('#decodeInput').value = payload; + document.querySelector('#decodePassword').value = 'WrongPassword'; + + document.querySelector('#openBtn').click(); + await new Promise((r) => setTimeout(r, 300)); + + assert.strictEqual(document.querySelector('#decodedResult').textContent, 'Fake Decoy Message'); + }); + + test('Emoji Code conversion', () => { + const originalText = 'sm2.SGVsbG8'; + const emojiCode = window.toEmojiCode(originalText); + const convertedBack = window.fromEmojiCode(emojiCode); + assert.strictEqual(convertedBack, originalText, 'Emoji code roundtrip succeeds'); + }); + + test('Steganography Embedding & Extraction', () => { + const canvas = window.document.createElement('canvas'); + canvas.width = 400; + canvas.height = 400; + const ctx = canvas.getContext('2d'); + ctx.fillStyle = '#ff0000'; + ctx.fillRect(0, 0, 400, 400); + + const testPayload = 'sm2.StegoPayloadTesting123'; + const success = window.embedPayloadInCanvas(canvas, testPayload); + assert.strictEqual(success, true, 'Payload successfully embedded in canvas'); + + const extracted = window.extractPayloadFromCanvas(canvas); + assert.strictEqual(extracted, testPayload, 'Extracted payload matches original'); + }); + + test('Design Undo & Redo functionality', () => { + const initialQrX = window.state.design.qrX; + + // Change slider + const qrXRange = document.querySelector('#qrXRange'); + qrXRange.value = '75'; + qrXRange.dispatchEvent(new window.Event('input')); + + assert.strictEqual(window.state.design.qrX, 75); + + // Click Undo + document.querySelector('#undoDesignBtn').click(); + assert.strictEqual(window.state.design.qrX, initialQrX, 'Undo restored initial QR X'); + + // Click Redo + document.querySelector('#redoDesignBtn').click(); + assert.strictEqual(window.state.design.qrX, 75, 'Redo restored updated QR X'); + }); + + test('Clear Encode & Clear Decode buttons', () => { + document.querySelector('#messageInput').value = 'Some message'; + document.querySelector('#clearEncodeBtn').click(); + assert.strictEqual(document.querySelector('#messageInput').value, '', 'Message input cleared'); + + document.querySelector('#decodeInput').value = 'Some code'; + document.querySelector('#clearDecodeBtn').click(); + assert.strictEqual(document.querySelector('#decodeInput').value, '', 'Decode input cleared'); + }); +});