827 lines
43 KiB
HTML
827 lines
43 KiB
HTML
{% extends "base.html" %}
|
|
|
|
{% block title %}Encode Message - Stegasoo{% endblock %}
|
|
|
|
{% block content %}
|
|
<div class="row justify-content-center">
|
|
<div class="col-lg-8">
|
|
<div class="card">
|
|
<div class="card-header">
|
|
<h5 class="mb-0"><i class="bi bi-lock-fill me-2"></i>Encode Secret Message or File</h5>
|
|
</div>
|
|
<div class="card-body">
|
|
<form method="POST" enctype="multipart/form-data" id="encodeForm">
|
|
<input type="hidden" name="client_date" id="clientDate" value="">
|
|
|
|
<div class="row">
|
|
<div class="col-md-6 mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-image me-1"></i> Reference Photo
|
|
</label>
|
|
<div class="drop-zone" id="refDropZone">
|
|
<input type="file" name="reference_photo" accept="image/*" required>
|
|
<div class="drop-zone-label">
|
|
<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
|
|
<span class="text-muted">Drop image or click to browse</span>
|
|
</div>
|
|
<img class="drop-zone-preview d-none" id="refPreview">
|
|
</div>
|
|
<div class="form-text">
|
|
The secret photo both parties have (NOT transmitted)
|
|
</div>
|
|
</div>
|
|
|
|
<div class="col-md-6 mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-image me-1"></i> Carrier Image
|
|
</label>
|
|
<div class="drop-zone" id="carrierDropZone">
|
|
<input type="file" name="carrier" accept="image/*" required id="carrierInput">
|
|
<div class="drop-zone-label">
|
|
<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
|
|
<span class="text-muted">Drop image or click to browse</span>
|
|
</div>
|
|
<img class="drop-zone-preview d-none" id="carrierPreview">
|
|
</div>
|
|
<div class="form-text">
|
|
The image to hide your message in (e.g., a meme)
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Capacity Info Panel (shown when carrier loaded) -->
|
|
<div class="alert alert-info small d-none" id="capacityPanel">
|
|
<div class="row align-items-center">
|
|
<div class="col">
|
|
<i class="bi bi-rulers me-1"></i>
|
|
<strong>Carrier:</strong> <span id="carrierDimensions">-</span>
|
|
</div>
|
|
<div class="col-auto">
|
|
<span class="badge bg-primary me-1" id="lsbCapacityBadge">LSB: -</span>
|
|
<span class="badge bg-secondary" id="dctCapacityBadge">DCT: -</span>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Payload Type Selector -->
|
|
<div class="mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-box me-1"></i> What to Encode
|
|
</label>
|
|
<div class="btn-group w-100" role="group">
|
|
<input type="radio" class="btn-check" name="payload_type" id="payloadText" value="text" checked>
|
|
<label class="btn btn-outline-primary" for="payloadText">
|
|
<i class="bi bi-chat-left-text me-1"></i> Text Message
|
|
</label>
|
|
|
|
<input type="radio" class="btn-check" name="payload_type" id="payloadFile" value="file">
|
|
<label class="btn btn-outline-primary" for="payloadFile">
|
|
<i class="bi bi-file-earmark me-1"></i> File
|
|
</label>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Text Message Input -->
|
|
<div class="mb-3" id="textPayloadSection">
|
|
<label class="form-label">
|
|
<i class="bi bi-chat-left-text me-1"></i> Secret Message
|
|
</label>
|
|
<textarea name="message" class="form-control" rows="4" id="messageInput"
|
|
placeholder="Enter your secret message here..."></textarea>
|
|
<div class="d-flex justify-content-between form-text">
|
|
<span>
|
|
<span id="charCount">0</span> / 250,000 characters
|
|
<span id="charWarning" class="text-warning d-none ms-2">
|
|
<i class="bi bi-exclamation-triangle"></i> Getting long!
|
|
</span>
|
|
</span>
|
|
<span id="charPercent" class="text-muted">0%</span>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- File Upload Input -->
|
|
<div class="mb-3 d-none" id="filePayloadSection">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-earmark me-1"></i> File to Embed
|
|
</label>
|
|
<div class="drop-zone" id="payloadDropZone">
|
|
<input type="file" name="payload_file" id="payloadFileInput">
|
|
<div class="drop-zone-label" id="payloadDropLabel">
|
|
<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>
|
|
<span class="text-muted">Drop any file or click to browse</span>
|
|
<div class="small text-muted mt-1">Max {{ max_payload_kb }} KB</div>
|
|
</div>
|
|
</div>
|
|
<div class="form-text">
|
|
Supports any file type: PDF, ZIP, documents, etc.
|
|
</div>
|
|
<div id="fileInfo" class="d-none mt-2 p-2 bg-dark rounded">
|
|
<i class="bi bi-file-earmark-check text-success me-2"></i>
|
|
<span id="fileInfoName"></span>
|
|
<span class="text-muted">(<span id="fileInfoSize"></span>)</span>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="mb-3">
|
|
<label class="form-label" id="dayPhraseLabel">
|
|
<i class="bi bi-chat-quote me-1"></i> Day's Phrase
|
|
</label>
|
|
<input type="text" name="day_phrase" class="form-control"
|
|
placeholder="e.g., correct horse battery" required>
|
|
<div class="form-text">
|
|
Your phrase for <strong>today</strong> (based on your local timezone)
|
|
</div>
|
|
</div>
|
|
|
|
<hr class="my-4">
|
|
|
|
<h6 class="text-muted mb-3">
|
|
SECURITY FACTORS
|
|
<span class="text-warning small">(provide at least one: PIN or RSA Key)</span>
|
|
</h6>
|
|
|
|
<div class="row">
|
|
<div class="col-md-6 mb-3">
|
|
<label class="form-label"><i class="bi bi-123 me-1"></i> PIN</label>
|
|
<div class="input-group">
|
|
<input type="password" name="pin" class="form-control" id="pinInput" placeholder="6-9 digits" maxlength="9">
|
|
<button class="btn btn-outline-secondary" type="button" id="togglePin">
|
|
<i class="bi bi-eye"></i>
|
|
</button>
|
|
</div>
|
|
<div class="form-text">Your static 6-9 digit PIN (if configured)</div>
|
|
</div>
|
|
|
|
<div class="col-md-6 mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-earmark-lock me-1"></i> RSA Key
|
|
</label>
|
|
<ul class="nav nav-tabs nav-tabs-sm mb-2" role="tablist">
|
|
<li class="nav-item" role="presentation">
|
|
<button class="nav-link active py-1 px-2 small" data-bs-toggle="tab" data-bs-target="#rsaFileTab" type="button">
|
|
<i class="bi bi-file-earmark me-1"></i>.pem File
|
|
</button>
|
|
</li>
|
|
<li class="nav-item" role="presentation">
|
|
<button class="nav-link py-1 px-2 small" data-bs-toggle="tab" data-bs-target="#rsaQrTab" type="button">
|
|
<i class="bi bi-qr-code me-1"></i>QR Code
|
|
</button>
|
|
</li>
|
|
</ul>
|
|
<div class="tab-content">
|
|
<div class="tab-pane fade show active" id="rsaFileTab" role="tabpanel">
|
|
<input type="file" name="rsa_key" class="form-control form-control-sm" id="rsaKeyInput" accept=".pem,.key,application/x-pem-file">
|
|
<div class="form-text small">Shared .pem format key file.</div>
|
|
</div>
|
|
<div class="tab-pane fade" id="rsaQrTab" role="tabpanel">
|
|
<input type="file" name="rsa_key_qr" class="form-control form-control-sm" id="rsaKeyQrInput" accept="image/*">
|
|
<div class="form-text small">PNG, JPG, or other image of QR code</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- RSA Key Password (shown when key selected) -->
|
|
<div class="mb-3 d-none" id="rsaPasswordGroup">
|
|
<label class="form-label">
|
|
<i class="bi bi-key me-1"></i> RSA Key Password
|
|
</label>
|
|
<input type="password" name="rsa_password" class="form-control"
|
|
placeholder="Password for the .pem file (if encrypted)">
|
|
<div class="form-text">
|
|
Leave blank if your key file is not password-protected (not needed for QR codes)
|
|
</div>
|
|
</div>
|
|
|
|
<!-- ================================================================
|
|
ADVANCED OPTIONS (v3.0) - Collapsible Section
|
|
================================================================ -->
|
|
<div class="mb-4">
|
|
<a class="btn btn-sm btn-outline-secondary w-100" data-bs-toggle="collapse" href="#advancedOptions" role="button" aria-expanded="false">
|
|
<i class="bi bi-gear me-1"></i> Advanced Options
|
|
<i class="bi bi-chevron-down ms-1" id="advancedChevron"></i>
|
|
</a>
|
|
|
|
<div class="collapse" id="advancedOptions">
|
|
<div class="card card-body mt-2 bg-dark border-secondary">
|
|
|
|
<!-- Embedding Mode Selection -->
|
|
<div class="mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-cpu me-1"></i> Embedding Mode
|
|
<span class="badge bg-info ms-1">v3.0</span>
|
|
</label>
|
|
|
|
<div class="row g-2">
|
|
<!-- LSB Mode Card -->
|
|
<div class="col-md-6">
|
|
<div class="form-check card p-3 h-100 border-primary border-2" id="lsbModeCard">
|
|
<input class="form-check-input" type="radio" name="embed_mode" id="modeLsb" value="lsb" checked>
|
|
<label class="form-check-label w-100" for="modeLsb">
|
|
<div class="d-flex align-items-center mb-2">
|
|
<i class="bi bi-grid-3x3-gap text-primary fs-4 me-2"></i>
|
|
<strong>LSB Mode</strong>
|
|
<span class="badge bg-success ms-auto">Default</span>
|
|
</div>
|
|
<ul class="small text-muted mb-0 ps-3">
|
|
<li>Full color PNG output</li>
|
|
<li>Higher capacity (~375 KB/MP)</li>
|
|
<li>Faster processing</li>
|
|
</ul>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- DCT Mode Card -->
|
|
<div class="col-md-6">
|
|
<div class="form-check card p-3 h-100 {% if not has_dct %}opacity-50{% endif %}" id="dctModeCard">
|
|
<input class="form-check-input" type="radio" name="embed_mode" id="modeDct" value="dct" {% if not has_dct %}disabled{% endif %}>
|
|
<label class="form-check-label w-100" for="modeDct">
|
|
<div class="d-flex align-items-center mb-2">
|
|
<i class="bi bi-soundwave text-info fs-4 me-2"></i>
|
|
<strong>DCT Mode</strong>
|
|
{% if has_dct %}
|
|
<span class="badge bg-warning text-dark ms-auto">Experimental</span>
|
|
{% else %}
|
|
<span class="badge bg-secondary ms-auto">Unavailable</span>
|
|
{% endif %}
|
|
</div>
|
|
<ul class="small text-muted mb-0 ps-3">
|
|
<li>Color or grayscale output</li>
|
|
<li>Lower capacity (~75 KB/MP)</li>
|
|
<li>Better detection resistance</li>
|
|
</ul>
|
|
{% if not has_dct %}
|
|
<div class="alert alert-warning small mt-2 mb-0 py-1 px-2">
|
|
<i class="bi bi-exclamation-triangle me-1"></i>
|
|
Requires scipy: <code>pip install scipy</code>
|
|
</div>
|
|
{% endif %}
|
|
</label>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Mode comparison hint -->
|
|
<div class="form-text mt-2" id="modeHint">
|
|
<i class="bi bi-lightbulb me-1"></i>
|
|
<strong>LSB</strong> is best for most uses.
|
|
<strong>DCT</strong> provides better stealth but lower capacity.
|
|
</div>
|
|
</div>
|
|
|
|
<!-- DCT Options Panel (shown only when DCT selected) -->
|
|
<div class="d-none" id="dctOptionsPanel">
|
|
|
|
<hr class="my-3">
|
|
|
|
<div class="alert alert-warning small mb-3">
|
|
<i class="bi bi-flask me-1"></i>
|
|
<strong>Experimental Feature:</strong> DCT embedding is still being refined.
|
|
Color mode preserves original colors but extraction uses Y channel only.
|
|
</div>
|
|
|
|
<!-- DCT Color Mode (NEW in v3.0.1) -->
|
|
<div class="mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-palette me-1"></i> DCT Color Mode
|
|
<span class="badge bg-success ms-1">v3.0.1</span>
|
|
</label>
|
|
|
|
<div class="row g-2">
|
|
<div class="col-6">
|
|
<div class="form-check card p-2 text-center border-success border-2" id="dctColorCard">
|
|
<input class="form-check-input mx-auto" type="radio" name="dct_color_mode" id="dctColorColor" value="color" checked>
|
|
<label class="form-check-label w-100" for="dctColorColor">
|
|
<i class="bi bi-palette-fill text-success fs-5 d-block"></i>
|
|
<strong>Color</strong>
|
|
<div class="small text-muted">Preserve colors</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
<div class="col-6">
|
|
<div class="form-check card p-2 text-center" id="dctGrayscaleCard">
|
|
<input class="form-check-input mx-auto" type="radio" name="dct_color_mode" id="dctColorGrayscale" value="grayscale">
|
|
<label class="form-check-label w-100" for="dctColorGrayscale">
|
|
<i class="bi bi-circle-half text-secondary fs-5 d-block"></i>
|
|
<strong>Grayscale</strong>
|
|
<div class="small text-muted">Traditional DCT</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="form-text mt-2">
|
|
<i class="bi bi-info-circle me-1"></i>
|
|
<strong>Color</strong> preserves original image colors (recommended).
|
|
<strong>Grayscale</strong> converts to B&W (traditional DCT steganography).
|
|
</div>
|
|
</div>
|
|
|
|
<!-- DCT Output Format -->
|
|
<div class="mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-image me-1"></i> DCT Output Format
|
|
</label>
|
|
|
|
<div class="row g-2">
|
|
<div class="col-6">
|
|
<div class="form-check card p-2 text-center border-primary border-2" id="dctPngCard">
|
|
<input class="form-check-input mx-auto" type="radio" name="dct_output_format" id="dctFormatPng" value="png" checked>
|
|
<label class="form-check-label w-100" for="dctFormatPng">
|
|
<i class="bi bi-file-earmark-image text-primary fs-5 d-block"></i>
|
|
<strong>PNG</strong>
|
|
<div class="small text-muted">Lossless, larger</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
<div class="col-6">
|
|
<div class="form-check card p-2 text-center" id="dctJpegCard">
|
|
<input class="form-check-input mx-auto" type="radio" name="dct_output_format" id="dctFormatJpeg" value="jpeg">
|
|
<label class="form-check-label w-100" for="dctFormatJpeg">
|
|
<i class="bi bi-file-earmark-richtext text-warning fs-5 d-block"></i>
|
|
<strong>JPEG</strong>
|
|
<div class="small text-muted">Smaller, natural</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="form-text mt-2">
|
|
<i class="bi bi-info-circle me-1"></i>
|
|
<strong>PNG</strong> is 100% reliable. <strong>JPEG</strong> produces smaller, more natural-looking files but uses lossy compression (Q=95).
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
|
|
<!-- Capacity Comparison (populated by JS) -->
|
|
<div class="d-none" id="modeCapacityComparison">
|
|
<hr class="my-3">
|
|
<div class="alert alert-secondary small mb-0">
|
|
<div class="row text-center">
|
|
<div class="col-6 border-end">
|
|
<div class="text-muted">LSB Capacity</div>
|
|
<div class="fs-5 text-primary" id="lsbCapacityDetail">-</div>
|
|
</div>
|
|
<div class="col-6">
|
|
<div class="text-muted">DCT Capacity</div>
|
|
<div class="fs-5 text-info" id="dctCapacityDetail">-</div>
|
|
</div>
|
|
</div>
|
|
<div class="text-center mt-2 small text-muted" id="capacityRatio">
|
|
DCT is ~20% of LSB capacity
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<button type="submit" class="btn btn-primary btn-lg w-100" id="encodeBtn">
|
|
<i class="bi bi-lock me-2"></i>Encode
|
|
</button>
|
|
</form>
|
|
|
|
<hr class="my-4">
|
|
|
|
<div class="row text-center text-muted small">
|
|
<div class="col-4">
|
|
<i class="bi bi-shield-check fs-4 d-block mb-1 text-success"></i>
|
|
AES-256-GCM Encryption
|
|
</div>
|
|
<div class="col-4">
|
|
<i class="bi bi-shuffle fs-4 d-block mb-1 text-info"></i>
|
|
Random Pixel Embedding
|
|
</div>
|
|
<div class="col-4">
|
|
<i class="bi bi-eye-slash fs-4 d-block mb-1 text-warning"></i>
|
|
Undetectable by Analysis
|
|
</div>
|
|
</div>
|
|
|
|
<div class="alert alert-secondary mt-4 small">
|
|
<i class="bi bi-info-circle me-1"></i>
|
|
<strong>Limits:</strong>
|
|
Carrier image max ~24 megapixels (6000x4000).
|
|
Files max 30MB upload.
|
|
Payload max {{ max_payload_kb }} KB.
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
{% endblock %}
|
|
|
|
{% block scripts %}
|
|
<script>
|
|
// Detect client's local date and day
|
|
const now = new Date();
|
|
const dayNames = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
|
|
const localDay = dayNames[now.getDay()];
|
|
const localDate = now.getFullYear() + '-' +
|
|
String(now.getMonth() + 1).padStart(2, '0') + '-' +
|
|
String(now.getDate()).padStart(2, '0');
|
|
|
|
// Update day label to client's local day
|
|
const dayLabel = document.getElementById('dayPhraseLabel');
|
|
if (dayLabel) {
|
|
dayLabel.innerHTML = `<i class="bi bi-chat-quote me-1"></i>Secure with <span class="day-of-week-highlight">${localDay}</span>'s Phrase`;
|
|
}
|
|
|
|
// Set hidden field with client's local date for server
|
|
const dateInput = document.getElementById('clientDate');
|
|
if (dateInput) {
|
|
dateInput.value = localDate;
|
|
}
|
|
|
|
// Payload type switching
|
|
const payloadTextRadio = document.getElementById('payloadText');
|
|
const payloadFileRadio = document.getElementById('payloadFile');
|
|
const textSection = document.getElementById('textPayloadSection');
|
|
const fileSection = document.getElementById('filePayloadSection');
|
|
const messageInput = document.getElementById('messageInput');
|
|
const payloadFileInput = document.getElementById('payloadFileInput');
|
|
|
|
function updatePayloadSection() {
|
|
const isText = payloadTextRadio.checked;
|
|
textSection.classList.toggle('d-none', !isText);
|
|
fileSection.classList.toggle('d-none', isText);
|
|
|
|
// Update required attribute
|
|
if (isText) {
|
|
messageInput.required = true;
|
|
payloadFileInput.required = false;
|
|
} else {
|
|
messageInput.required = false;
|
|
payloadFileInput.required = true;
|
|
}
|
|
}
|
|
|
|
payloadTextRadio.addEventListener('change', updatePayloadSection);
|
|
payloadFileRadio.addEventListener('change', updatePayloadSection);
|
|
|
|
// File payload info display
|
|
const fileInfo = document.getElementById('fileInfo');
|
|
const fileInfoName = document.getElementById('fileInfoName');
|
|
const fileInfoSize = document.getElementById('fileInfoSize');
|
|
const payloadDropLabel = document.getElementById('payloadDropLabel');
|
|
|
|
payloadFileInput.addEventListener('change', function() {
|
|
if (this.files && this.files[0]) {
|
|
const file = this.files[0];
|
|
fileInfoName.textContent = file.name;
|
|
fileInfoSize.textContent = formatFileSize(file.size);
|
|
fileInfo.classList.remove('d-none');
|
|
payloadDropLabel.innerHTML = `<i class="bi bi-check-circle text-success fs-3 d-block mb-2"></i><span>${file.name}</span>`;
|
|
} else {
|
|
fileInfo.classList.add('d-none');
|
|
payloadDropLabel.innerHTML = `<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i><span class="text-muted">Drop any file or click to browse</span><div class="small text-muted mt-1">Max {{ max_payload_kb }} KB</div>`;
|
|
}
|
|
});
|
|
|
|
function formatFileSize(bytes) {
|
|
if (bytes < 1024) return bytes + ' B';
|
|
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
|
|
return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
|
|
}
|
|
|
|
// Show RSA password field when key is selected (only for .pem files, not QR)
|
|
const rsaKeyInput = document.getElementById('rsaKeyInput');
|
|
const rsaKeyQrInput = document.getElementById('rsaKeyQrInput');
|
|
const rsaPasswordGroup = document.getElementById('rsaPasswordGroup');
|
|
|
|
if (rsaKeyInput) {
|
|
rsaKeyInput.addEventListener('change', function() {
|
|
// Show password field only for .pem files
|
|
rsaPasswordGroup.classList.toggle('d-none', !this.files.length);
|
|
// Clear QR input if file is selected
|
|
if (rsaKeyQrInput && this.files.length) {
|
|
rsaKeyQrInput.value = '';
|
|
}
|
|
});
|
|
}
|
|
|
|
if (rsaKeyQrInput) {
|
|
rsaKeyQrInput.addEventListener('change', function() {
|
|
// Hide password field for QR codes (they're unencrypted)
|
|
rsaPasswordGroup.classList.add('d-none');
|
|
// Clear file input if QR is selected
|
|
if (rsaKeyInput && this.files.length) {
|
|
rsaKeyInput.value = '';
|
|
}
|
|
});
|
|
}
|
|
|
|
// Form submit loading state
|
|
document.getElementById('encodeForm').addEventListener('submit', function(e) {
|
|
const btn = document.getElementById('encodeBtn');
|
|
const selectedMode = document.querySelector('input[name="embed_mode"]:checked').value;
|
|
let modeLabel = selectedMode.toUpperCase();
|
|
|
|
if (selectedMode === 'dct') {
|
|
const colorMode = document.querySelector('input[name="dct_color_mode"]:checked')?.value || 'color';
|
|
const outputFormat = document.querySelector('input[name="dct_output_format"]:checked')?.value || 'png';
|
|
modeLabel += ` (${colorMode}, ${outputFormat.toUpperCase()})`;
|
|
}
|
|
|
|
btn.innerHTML = `<span class="spinner-border spinner-border-sm me-2"></span>Encoding (${modeLabel})...`;
|
|
btn.disabled = true;
|
|
});
|
|
|
|
// Character counter for text
|
|
const charCount = document.getElementById('charCount');
|
|
const charWarning = document.getElementById('charWarning');
|
|
const charPercent = document.getElementById('charPercent');
|
|
const maxChars = 250000;
|
|
|
|
messageInput.addEventListener('input', function() {
|
|
const len = this.value.length;
|
|
charCount.textContent = len.toLocaleString();
|
|
|
|
const pct = Math.round((len / maxChars) * 100);
|
|
charPercent.textContent = pct + '%';
|
|
|
|
charWarning.classList.toggle('d-none', len < maxChars * 0.8);
|
|
charCount.classList.toggle('text-danger', len > maxChars * 0.95);
|
|
});
|
|
|
|
// ============================================================================
|
|
// v3.0 - Capacity Comparison API
|
|
// ============================================================================
|
|
|
|
const carrierInput = document.getElementById('carrierInput');
|
|
const capacityPanel = document.getElementById('capacityPanel');
|
|
const carrierDimensions = document.getElementById('carrierDimensions');
|
|
const lsbCapacityBadge = document.getElementById('lsbCapacityBadge');
|
|
const dctCapacityBadge = document.getElementById('dctCapacityBadge');
|
|
const lsbCapacityDetail = document.getElementById('lsbCapacityDetail');
|
|
const dctCapacityDetail = document.getElementById('dctCapacityDetail');
|
|
const modeCapacityComparison = document.getElementById('modeCapacityComparison');
|
|
const capacityRatio = document.getElementById('capacityRatio');
|
|
|
|
let currentCapacity = null;
|
|
|
|
async function fetchCapacityComparison(file) {
|
|
const formData = new FormData();
|
|
formData.append('carrier', file);
|
|
|
|
try {
|
|
const response = await fetch('/api/compare-capacity', {
|
|
method: 'POST',
|
|
body: formData
|
|
});
|
|
|
|
if (response.ok) {
|
|
const data = await response.json();
|
|
if (data.success) {
|
|
currentCapacity = data;
|
|
updateCapacityDisplay(data);
|
|
}
|
|
}
|
|
} catch (err) {
|
|
console.error('Capacity comparison failed:', err);
|
|
}
|
|
}
|
|
|
|
function updateCapacityDisplay(data) {
|
|
// Update top panel
|
|
carrierDimensions.textContent = `${data.width} x ${data.height}`;
|
|
lsbCapacityBadge.textContent = `LSB: ${data.lsb.capacity_kb} KB`;
|
|
|
|
if (data.dct.available) {
|
|
dctCapacityBadge.textContent = `DCT: ${data.dct.capacity_kb} KB`;
|
|
dctCapacityBadge.classList.remove('bg-secondary');
|
|
dctCapacityBadge.classList.add('bg-info');
|
|
} else {
|
|
dctCapacityBadge.textContent = `DCT: N/A`;
|
|
dctCapacityBadge.classList.remove('bg-info');
|
|
dctCapacityBadge.classList.add('bg-secondary');
|
|
}
|
|
|
|
capacityPanel.classList.remove('d-none');
|
|
|
|
// Update advanced options panel
|
|
lsbCapacityDetail.textContent = `${data.lsb.capacity_kb} KB`;
|
|
dctCapacityDetail.textContent = data.dct.available ? `${data.dct.capacity_kb} KB` : 'N/A';
|
|
capacityRatio.textContent = data.dct.available
|
|
? `DCT is ${data.dct.ratio}% of LSB capacity`
|
|
: 'DCT mode not available';
|
|
modeCapacityComparison.classList.remove('d-none');
|
|
}
|
|
|
|
// Listen for carrier file selection
|
|
if (carrierInput) {
|
|
carrierInput.addEventListener('change', function() {
|
|
if (this.files && this.files[0]) {
|
|
fetchCapacityComparison(this.files[0]);
|
|
} else {
|
|
capacityPanel.classList.add('d-none');
|
|
modeCapacityComparison.classList.add('d-none');
|
|
currentCapacity = null;
|
|
}
|
|
});
|
|
}
|
|
|
|
// ============================================================================
|
|
// Mode card highlighting & DCT options visibility
|
|
// ============================================================================
|
|
|
|
const lsbModeCard = document.getElementById('lsbModeCard');
|
|
const dctModeCard = document.getElementById('dctModeCard');
|
|
const modeLsb = document.getElementById('modeLsb');
|
|
const modeDct = document.getElementById('modeDct');
|
|
const dctOptionsPanel = document.getElementById('dctOptionsPanel');
|
|
|
|
// DCT format cards
|
|
const dctPngCard = document.getElementById('dctPngCard');
|
|
const dctJpegCard = document.getElementById('dctJpegCard');
|
|
const dctFormatPng = document.getElementById('dctFormatPng');
|
|
const dctFormatJpeg = document.getElementById('dctFormatJpeg');
|
|
|
|
// DCT color mode cards
|
|
const dctColorCard = document.getElementById('dctColorCard');
|
|
const dctGrayscaleCard = document.getElementById('dctGrayscaleCard');
|
|
const dctColorColor = document.getElementById('dctColorColor');
|
|
const dctColorGrayscale = document.getElementById('dctColorGrayscale');
|
|
|
|
function updateModeCardHighlight() {
|
|
// Mode cards
|
|
lsbModeCard.classList.toggle('border-primary', modeLsb.checked);
|
|
lsbModeCard.classList.toggle('border-2', modeLsb.checked);
|
|
dctModeCard.classList.toggle('border-info', modeDct.checked);
|
|
dctModeCard.classList.toggle('border-2', modeDct.checked);
|
|
|
|
// Show/hide DCT options panel
|
|
if (dctOptionsPanel) {
|
|
dctOptionsPanel.classList.toggle('d-none', !modeDct.checked);
|
|
}
|
|
}
|
|
|
|
function updateDctFormatCardHighlight() {
|
|
if (dctPngCard && dctJpegCard) {
|
|
dctPngCard.classList.toggle('border-primary', dctFormatPng.checked);
|
|
dctPngCard.classList.toggle('border-2', dctFormatPng.checked);
|
|
dctJpegCard.classList.toggle('border-warning', dctFormatJpeg.checked);
|
|
dctJpegCard.classList.toggle('border-2', dctFormatJpeg.checked);
|
|
}
|
|
}
|
|
|
|
function updateDctColorCardHighlight() {
|
|
if (dctColorCard && dctGrayscaleCard) {
|
|
dctColorCard.classList.toggle('border-success', dctColorColor.checked);
|
|
dctColorCard.classList.toggle('border-2', dctColorColor.checked);
|
|
dctGrayscaleCard.classList.toggle('border-secondary', dctColorGrayscale.checked);
|
|
dctGrayscaleCard.classList.toggle('border-2', dctColorGrayscale.checked);
|
|
}
|
|
}
|
|
|
|
modeLsb.addEventListener('change', updateModeCardHighlight);
|
|
modeDct.addEventListener('change', updateModeCardHighlight);
|
|
dctFormatPng?.addEventListener('change', updateDctFormatCardHighlight);
|
|
dctFormatJpeg?.addEventListener('change', updateDctFormatCardHighlight);
|
|
dctColorColor?.addEventListener('change', updateDctColorCardHighlight);
|
|
dctColorGrayscale?.addEventListener('change', updateDctColorCardHighlight);
|
|
|
|
updateModeCardHighlight(); // Initial state
|
|
updateDctFormatCardHighlight(); // Initial state
|
|
updateDctColorCardHighlight(); // Initial state
|
|
|
|
// Advanced options chevron rotation
|
|
document.getElementById('advancedOptions').addEventListener('show.bs.collapse', function() {
|
|
document.getElementById('advancedChevron').classList.add('bi-chevron-up');
|
|
document.getElementById('advancedChevron').classList.remove('bi-chevron-down');
|
|
});
|
|
document.getElementById('advancedOptions').addEventListener('hide.bs.collapse', function() {
|
|
document.getElementById('advancedChevron').classList.remove('bi-chevron-up');
|
|
document.getElementById('advancedChevron').classList.add('bi-chevron-down');
|
|
});
|
|
|
|
// ============================================================================
|
|
// Drag & drop with preview for images
|
|
// ============================================================================
|
|
|
|
document.querySelectorAll('.drop-zone').forEach(zone => {
|
|
const input = zone.querySelector('input[type="file"]');
|
|
const label = zone.querySelector('.drop-zone-label');
|
|
const preview = zone.querySelector('.drop-zone-preview');
|
|
const isPayloadZone = zone.id === 'payloadDropZone';
|
|
const isCarrierZone = zone.id === 'carrierDropZone';
|
|
|
|
['dragenter', 'dragover'].forEach(evt => {
|
|
zone.addEventListener(evt, e => {
|
|
e.preventDefault();
|
|
zone.classList.add('drag-over');
|
|
});
|
|
});
|
|
|
|
['dragleave', 'drop'].forEach(evt => {
|
|
zone.addEventListener(evt, e => {
|
|
e.preventDefault();
|
|
zone.classList.remove('drag-over');
|
|
});
|
|
});
|
|
|
|
zone.addEventListener('drop', e => {
|
|
if (e.dataTransfer.files.length) {
|
|
input.files = e.dataTransfer.files;
|
|
input.dispatchEvent(new Event('change'));
|
|
|
|
if (!isPayloadZone) {
|
|
showPreview(e.dataTransfer.files[0]);
|
|
}
|
|
|
|
// Trigger capacity check for carrier
|
|
if (isCarrierZone && e.dataTransfer.files[0]) {
|
|
fetchCapacityComparison(e.dataTransfer.files[0]);
|
|
}
|
|
}
|
|
});
|
|
|
|
if (!isPayloadZone) {
|
|
input.addEventListener('change', function() {
|
|
if (this.files && this.files[0]) {
|
|
showPreview(this.files[0]);
|
|
}
|
|
});
|
|
}
|
|
|
|
function showPreview(file) {
|
|
if (!file.type.startsWith('image/')) return;
|
|
|
|
const reader = new FileReader();
|
|
reader.onload = e => {
|
|
if (preview) {
|
|
preview.src = e.target.result;
|
|
preview.classList.remove('d-none');
|
|
}
|
|
label.innerHTML = '<i class="bi bi-check-circle text-success me-1"></i>' + file.name;
|
|
};
|
|
reader.readAsDataURL(file);
|
|
}
|
|
});
|
|
|
|
// PIN Toggle Logic
|
|
document.getElementById('togglePin').addEventListener('click', function() {
|
|
const input = document.getElementById('pinInput');
|
|
const icon = this.querySelector('i');
|
|
if (input.type === 'password') {
|
|
input.type = 'text';
|
|
icon.classList.replace('bi-eye', 'bi-eye-slash');
|
|
} else {
|
|
input.type = 'password';
|
|
icon.classList.replace('bi-eye-slash', 'bi-eye');
|
|
}
|
|
});
|
|
|
|
// Prevent Same File Selection
|
|
function checkDuplicateFiles() {
|
|
const refInput = document.querySelector('input[name="reference_photo"]');
|
|
const carInput = document.querySelector('input[name="carrier"]');
|
|
|
|
if (refInput.files[0] && carInput.files[0]) {
|
|
if (refInput.files[0].name === carInput.files[0].name &&
|
|
refInput.files[0].size === carInput.files[0].size) {
|
|
alert("Security Warning: You cannot use the same image for both Reference and Carrier!");
|
|
carInput.value = '';
|
|
document.getElementById('carrierPreview').classList.add('d-none');
|
|
document.querySelector('#carrierDropZone .drop-zone-label').innerHTML =
|
|
'<i class="bi bi-cloud-arrow-up fs-3 d-block mb-2 text-muted"></i>' +
|
|
'<span class="text-muted">Drop image or click to browse</span>';
|
|
capacityPanel.classList.add('d-none');
|
|
}
|
|
}
|
|
}
|
|
document.querySelector('input[name="reference_photo"]').addEventListener('change', checkDuplicateFiles);
|
|
document.querySelector('input[name="carrier"]').addEventListener('change', checkDuplicateFiles);
|
|
|
|
// Paste from Clipboard
|
|
document.addEventListener('paste', function(e) {
|
|
const items = e.clipboardData.items;
|
|
for (let i = 0; i < items.length; i++) {
|
|
if (items[i].type.indexOf("image") !== -1) {
|
|
const blob = items[i].getAsFile();
|
|
|
|
const carrierInput = document.querySelector('input[name="carrier"]');
|
|
const refInput = document.querySelector('input[name="reference_photo"]');
|
|
|
|
const targetInput = (!carrierInput.files.length) ? carrierInput : refInput;
|
|
|
|
const container = new DataTransfer();
|
|
container.items.add(blob);
|
|
targetInput.files = container.files;
|
|
|
|
targetInput.dispatchEvent(new Event('change'));
|
|
|
|
// Trigger capacity check if pasted to carrier
|
|
if (targetInput === carrierInput) {
|
|
fetchCapacityComparison(blob);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
</script>
|
|
{% endblock %}
|