206 lines
8.7 KiB
HTML
206 lines
8.7 KiB
HTML
{% extends "base.html" %}
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{% block title %}Encode Message - Stegasoo{% endblock %}
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{% block content %}
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<div class="row justify-content-center">
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<div class="col-lg-8">
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<div class="card">
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<div class="card-header">
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<h5 class="mb-0"><i class="bi bi-lock-fill me-2"></i>Encode Secret Message</h5>
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</div>
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<div class="card-body">
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<form method="POST" enctype="multipart/form-data" id="encodeForm">
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<div class="row">
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<div class="col-md-6 mb-3">
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<label class="form-label">
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<i class="bi bi-image me-1"></i> Reference Photo
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</label>
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<div class="drop-zone" id="refDropZone">
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<input type="file" name="reference_photo" accept="image/*" required>
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<div class="drop-zone-label">
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<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
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<span class="text-muted">Drop image or click to browse</span>
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</div>
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<img class="drop-zone-preview d-none" id="refPreview">
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</div>
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<div class="form-text">
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The secret photo both parties have (NOT transmitted)
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</div>
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</div>
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<div class="col-md-6 mb-3">
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<label class="form-label">
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<i class="bi bi-file-image me-1"></i> Carrier Image
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</label>
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<div class="drop-zone" id="carrierDropZone">
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<input type="file" name="carrier" accept="image/*" required>
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<div class="drop-zone-label">
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<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
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<span class="text-muted">Drop image or click to browse</span>
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</div>
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<img class="drop-zone-preview d-none" id="carrierPreview">
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</div>
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<div class="form-text">
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The image to hide your message in (e.g., a meme)
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</div>
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</div>
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</div>
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<div class="mb-3">
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<label class="form-label">
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<i class="bi bi-chat-left-text me-1"></i> Secret Message
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</label>
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<textarea name="message" class="form-control" rows="4" id="messageInput"
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placeholder="Enter your secret message here..." required></textarea>
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<div class="d-flex justify-content-between form-text">
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<span>
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<span id="charCount">0</span> / 50,000 characters
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<span id="charWarning" class="text-warning d-none ms-2">
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<i class="bi bi-exclamation-triangle"></i> Getting long!
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</span>
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</span>
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<span id="charPercent" class="text-muted">0%</span>
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</div>
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</div>
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<div class="row">
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<div class="col-md-8 mb-3">
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<label class="form-label">
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<i class="bi bi-chat-quote me-1"></i> {{ day_of_week }}'s Phrase
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</label>
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<input type="text" name="day_phrase" class="form-control"
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placeholder="e.g., correct horse battery" required>
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<div class="form-text">
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Your phrase for <strong>today</strong> (based on your local timezone)
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</div>
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</div>
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<div class="col-md-4 mb-3">
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<label class="form-label">
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<i class="bi bi-123 me-1"></i> PIN
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</label>
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<input type="password" name="pin" class="form-control"
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placeholder="123456" maxlength="10">
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<div class="form-text">
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Your static 6-digit PIN
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</div>
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</div>
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</div>
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<button type="submit" class="btn btn-primary btn-lg w-100" id="encodeBtn">
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<i class="bi bi-lock me-2"></i>Encode Message
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</button>
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</form>
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<hr class="my-4">
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<div class="row text-center text-muted small">
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<div class="col-4">
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<i class="bi bi-shield-check fs-4 d-block mb-1 text-success"></i>
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AES-256-GCM Encryption
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</div>
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<div class="col-4">
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<i class="bi bi-shuffle fs-4 d-block mb-1 text-info"></i>
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Random Pixel Embedding
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</div>
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<div class="col-4">
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<i class="bi bi-eye-slash fs-4 d-block mb-1 text-warning"></i>
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Undetectable by Analysis
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</div>
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</div>
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<div class="alert alert-secondary mt-4 small">
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<i class="bi bi-info-circle me-1"></i>
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<strong>Limits:</strong>
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Carrier image max ~4 megapixels (2000×2000).
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Files max 5MB each.
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Message max 50KB.
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</div>
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</div>
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</div>
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</div>
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</div>
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{% endblock %}
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{% block scripts %}
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<script>
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// Form submit loading state
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document.getElementById('encodeForm').addEventListener('submit', function(e) {
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const btn = document.getElementById('encodeBtn');
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btn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Encoding...';
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btn.disabled = true;
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});
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// Character counter
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const messageInput = document.getElementById('messageInput');
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const charCount = document.getElementById('charCount');
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const charWarning = document.getElementById('charWarning');
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const charPercent = document.getElementById('charPercent');
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const maxChars = 50000;
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messageInput.addEventListener('input', function() {
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const len = this.value.length;
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charCount.textContent = len.toLocaleString();
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const pct = Math.round((len / maxChars) * 100);
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charPercent.textContent = pct + '%';
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// Warning at 80%
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charWarning.classList.toggle('d-none', len < maxChars * 0.8);
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// Red text when near/over limit
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charCount.classList.toggle('text-danger', len > maxChars * 0.95);
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});
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// Drag & drop with preview
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document.querySelectorAll('.drop-zone').forEach(zone => {
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const input = zone.querySelector('input[type="file"]');
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const label = zone.querySelector('.drop-zone-label');
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const preview = zone.querySelector('.drop-zone-preview');
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// Drag events
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['dragenter', 'dragover'].forEach(evt => {
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zone.addEventListener(evt, e => {
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e.preventDefault();
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zone.classList.add('drag-over');
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});
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});
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['dragleave', 'drop'].forEach(evt => {
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zone.addEventListener(evt, e => {
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e.preventDefault();
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zone.classList.remove('drag-over');
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});
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});
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// Handle drop
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zone.addEventListener('drop', e => {
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if (e.dataTransfer.files.length) {
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input.files = e.dataTransfer.files;
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showPreview(e.dataTransfer.files[0]);
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}
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});
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// Handle click selection
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input.addEventListener('change', function() {
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if (this.files && this.files[0]) {
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showPreview(this.files[0]);
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}
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});
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function showPreview(file) {
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if (!file.type.startsWith('image/')) return;
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const reader = new FileReader();
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reader.onload = e => {
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preview.src = e.target.result;
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preview.classList.remove('d-none');
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label.innerHTML = '<i class="bi bi-check-circle text-success me-1"></i>' + file.name;
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};
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reader.readAsDataURL(file);
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}
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});
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</script>
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{% endblock %}
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