571 lines
27 KiB
HTML
571 lines
27 KiB
HTML
{% extends "base.html" %}
|
|
|
|
{% block title %}Decode Message - Stegasoo{% endblock %}
|
|
|
|
{% block content %}
|
|
<style>
|
|
/* Glowing passphrase input */
|
|
.passphrase-input {
|
|
background: rgba(30, 40, 50, 0.8) !important;
|
|
border: 2px solid rgba(99, 179, 237, 0.3) !important;
|
|
color: #63b3ed !important;
|
|
font-family: 'Courier New', monospace;
|
|
font-size: 1.1rem;
|
|
letter-spacing: 0.5px;
|
|
padding: 12px 16px;
|
|
transition: border-color 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
|
|
}
|
|
|
|
.passphrase-input:focus {
|
|
border-color: rgba(99, 179, 237, 0.8) !important;
|
|
box-shadow: 0 0 20px rgba(99, 179, 237, 0.4), 0 0 40px rgba(99, 179, 237, 0.2) !important;
|
|
background: rgba(30, 40, 50, 0.95) !important;
|
|
}
|
|
|
|
.passphrase-input::placeholder {
|
|
color: rgba(99, 179, 237, 0.4);
|
|
}
|
|
|
|
/* Glowing PIN input */
|
|
.pin-input-container .form-control {
|
|
background: rgba(30, 40, 50, 0.8) !important;
|
|
border: 2px solid rgba(246, 173, 85, 0.3) !important;
|
|
color: #f6ad55 !important;
|
|
font-family: 'Courier New', monospace;
|
|
font-size: 1.2rem;
|
|
letter-spacing: 3px;
|
|
text-align: center;
|
|
transition: all 0.3s ease;
|
|
}
|
|
|
|
.pin-input-container .form-control:focus {
|
|
border-color: rgba(246, 173, 85, 0.8) !important;
|
|
box-shadow: 0 0 20px rgba(246, 173, 85, 0.4), 0 0 40px rgba(246, 173, 85, 0.2) !important;
|
|
background: rgba(30, 40, 50, 0.95) !important;
|
|
}
|
|
|
|
.pin-input-container .form-control::placeholder {
|
|
color: rgba(246, 173, 85, 0.4);
|
|
letter-spacing: 1px;
|
|
}
|
|
</style>
|
|
|
|
<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-unlock-fill me-2"></i>Decode Secret Message or File</h5>
|
|
</div>
|
|
<div class="card-body">
|
|
{% if decoded_message %}
|
|
<!-- Text Message Result -->
|
|
<div class="alert alert-success">
|
|
<h6><i class="bi bi-check-circle me-2"></i>Message Decrypted Successfully!</h6>
|
|
</div>
|
|
|
|
<label class="form-label text-muted">Decoded Message:</label>
|
|
<div class="alert-message p-3 rounded bg-dark border border-secondary mb-2" id="decodedContent" style="white-space: pre-wrap;">{{ decoded_message }}</div>
|
|
<div class="d-flex justify-content-end mb-3">
|
|
<button class="btn btn-sm btn-outline-light" onclick="navigator.clipboard.writeText(document.getElementById('decodedContent').innerText).then(() => { this.innerHTML = '<i class=\'bi bi-check\'></i> Copied!'; setTimeout(() => this.innerHTML = '<i class=\'bi bi-clipboard\'></i> Copy', 2000); }).catch(() => alert('Failed to copy'))">
|
|
<i class="bi bi-clipboard"></i> Copy
|
|
</button>
|
|
</div>
|
|
|
|
<a href="/decode" class="btn btn-outline-light w-100">
|
|
<i class="bi bi-arrow-repeat me-2"></i>Decode Another
|
|
</a>
|
|
|
|
{% elif decoded_file %}
|
|
<!-- File Result -->
|
|
<div class="alert alert-success">
|
|
<h6><i class="bi bi-check-circle me-2"></i>File Decrypted Successfully!</h6>
|
|
</div>
|
|
|
|
<div class="text-center mb-4">
|
|
<i class="bi bi-file-earmark-check text-success" style="font-size: 4rem;"></i>
|
|
<h5 class="mt-3">{{ filename }}</h5>
|
|
<p class="text-muted mb-1">{{ file_size }}</p>
|
|
{% if mime_type %}
|
|
<small class="text-muted">Type: {{ mime_type }}</small>
|
|
{% endif %}
|
|
</div>
|
|
|
|
<a href="{{ url_for('decode_download', file_id=file_id) }}" class="btn btn-primary btn-lg w-100 mb-3">
|
|
<i class="bi bi-download me-2"></i>Download File
|
|
</a>
|
|
|
|
<div class="alert alert-warning small">
|
|
<i class="bi bi-clock me-1"></i>
|
|
<strong>File expires in 5 minutes.</strong> Download now.
|
|
</div>
|
|
|
|
<a href="/decode" class="btn btn-outline-light w-100">
|
|
<i class="bi bi-arrow-repeat me-2"></i>Decode Another
|
|
</a>
|
|
|
|
{% else %}
|
|
<!-- Decode Form -->
|
|
<form method="POST" enctype="multipart/form-data" id="decodeForm">
|
|
<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">
|
|
<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">
|
|
</div>
|
|
<div class="form-text">
|
|
The same reference photo used for encoding
|
|
</div>
|
|
</div>
|
|
|
|
<div class="col-md-6 mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-earmark-image me-1"></i> Stego Image
|
|
</label>
|
|
<div class="drop-zone" id="stegoDropZone">
|
|
<input type="file" name="stego_image" 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">
|
|
</div>
|
|
<div class="form-text">
|
|
The image containing the hidden message/file
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-chat-quote me-1"></i> Passphrase
|
|
</label>
|
|
<input type="text" name="passphrase" id="passphraseInput" class="form-control passphrase-input"
|
|
placeholder="e.g., correct horse battery staple" required>
|
|
<div class="form-text">
|
|
The passphrase used during encoding (typically 4 words)
|
|
</div>
|
|
</div>
|
|
|
|
<hr class="my-4">
|
|
|
|
<h6 class="text-muted mb-3">
|
|
SECURITY FACTORS
|
|
<span class="text-warning small">(provide same factors used during encoding)</span>
|
|
</h6>
|
|
|
|
<div class="row">
|
|
<div class="col-md-4 mb-3">
|
|
<label class="form-label"><i class="bi bi-123 me-1"></i> PIN</label>
|
|
<div class="input-group pin-input-container">
|
|
<input type="password" name="pin" class="form-control" id="pinInput" placeholder="••••••" maxlength="9" style="max-width: 180px;">
|
|
<button class="btn btn-outline-secondary" type="button" id="togglePin">
|
|
<i class="bi bi-eye"></i>
|
|
</button>
|
|
</div>
|
|
<div class="form-text">If PIN was used during encoding</div>
|
|
</div>
|
|
|
|
<div class="col-md-8 mb-3">
|
|
<label class="form-label">
|
|
<i class="bi bi-file-earmark-lock me-1"></i> RSA Key
|
|
</label>
|
|
|
|
<!-- RSA Input Method Toggle -->
|
|
<div class="btn-group w-100 mb-2" role="group">
|
|
<input type="radio" class="btn-check" name="rsa_input_method" id="rsaMethodFile" value="file" checked>
|
|
<label class="btn btn-outline-secondary btn-sm" for="rsaMethodFile">
|
|
<i class="bi bi-file-earmark me-1"></i>.pem File
|
|
</label>
|
|
|
|
<input type="radio" class="btn-check" name="rsa_input_method" id="rsaMethodQr" value="qr">
|
|
<label class="btn btn-outline-secondary btn-sm" for="rsaMethodQr">
|
|
<i class="bi bi-qr-code me-1"></i>QR Code
|
|
</label>
|
|
</div>
|
|
|
|
<!-- .pem File Input -->
|
|
<div id="rsaFileSection">
|
|
<input type="file" name="rsa_key" class="form-control form-control-sm" id="rsaKeyInput" accept=".pem,.key,application/x-pem-file">
|
|
</div>
|
|
|
|
<!-- QR Code Input -->
|
|
<div id="rsaQrSection" class="d-none">
|
|
<div class="drop-zone p-3" id="qrDropZone">
|
|
<input type="file" name="rsa_key_qr" accept="image/*" id="rsaKeyQrInput">
|
|
<div class="drop-zone-label text-center">
|
|
<i class="bi bi-qr-code-scan fs-4 d-block text-muted mb-1"></i>
|
|
<span class="text-muted small">Drop QR image or click to browse</span>
|
|
</div>
|
|
<img class="drop-zone-preview d-none" id="qrPreview" style="max-height: 80px;">
|
|
</div>
|
|
</div>
|
|
|
|
<!-- Key Password (always visible) -->
|
|
<div class="input-group input-group-sm mt-2">
|
|
<input type="password" name="rsa_password" class="form-control" id="rsaPasswordInput" placeholder="Key password (if encrypted)">
|
|
<button class="btn btn-outline-secondary" type="button" id="toggleRsaPassword">
|
|
<i class="bi bi-eye"></i>
|
|
</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- ================================================================
|
|
ADVANCED OPTIONS (v3.0) - Extraction Mode
|
|
================================================================ -->
|
|
<div class="mb-4">
|
|
<a class="btn btn-sm btn-outline-secondary w-100" data-bs-toggle="collapse" href="#advancedOptionsDec" role="button" aria-expanded="false">
|
|
<i class="bi bi-gear me-1"></i> Advanced Options
|
|
<i class="bi bi-chevron-down ms-1" id="advancedChevronDec"></i>
|
|
</a>
|
|
|
|
<div class="collapse" id="advancedOptionsDec">
|
|
<div class="card card-body mt-2 bg-dark border-secondary">
|
|
|
|
<!-- Extraction Mode Selection -->
|
|
<div class="mb-0">
|
|
<label class="form-label">
|
|
<i class="bi bi-cpu me-1"></i> Extraction Mode
|
|
<span class="badge bg-info ms-1">v3.0</span>
|
|
</label>
|
|
|
|
<div class="row g-2">
|
|
<!-- Auto Mode -->
|
|
<div class="col-4">
|
|
<div class="form-check card p-2 text-center h-100" id="autoModeCard">
|
|
<input class="form-check-input mx-auto" type="radio" name="embed_mode" id="modeAuto" value="auto" checked>
|
|
<label class="form-check-label w-100" for="modeAuto">
|
|
<i class="bi bi-magic text-success fs-4 d-block mb-1"></i>
|
|
<strong>Auto</strong>
|
|
<div class="small text-muted">Try both</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- LSB Mode -->
|
|
<div class="col-4">
|
|
<div class="form-check card p-2 text-center h-100" id="lsbModeCardDec">
|
|
<input class="form-check-input mx-auto" type="radio" name="embed_mode" id="modeLsbDec" value="lsb">
|
|
<label class="form-check-label w-100" for="modeLsbDec">
|
|
<i class="bi bi-grid-3x3-gap text-primary fs-4 d-block mb-1"></i>
|
|
<strong>LSB</strong>
|
|
<div class="small text-muted">Spatial only</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
|
|
<!-- DCT Mode -->
|
|
<div class="col-4">
|
|
<div class="form-check card p-2 text-center h-100 {% if not has_dct %}opacity-50{% endif %}" id="dctModeCardDec">
|
|
<input class="form-check-input mx-auto" type="radio" name="embed_mode" id="modeDctDec" value="dct" {% if not has_dct %}disabled{% endif %}>
|
|
<label class="form-check-label w-100" for="modeDctDec">
|
|
<i class="bi bi-soundwave text-info fs-4 d-block mb-1"></i>
|
|
<strong>DCT</strong>
|
|
<div class="small text-muted">
|
|
{% if has_dct %}Frequency only{% else %}N/A{% endif %}
|
|
</div>
|
|
</label>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<div class="form-text mt-2">
|
|
<i class="bi bi-lightbulb me-1"></i>
|
|
<strong>Auto</strong> tries LSB first, then DCT. Use specific mode if you know how it was encoded.
|
|
{% if not has_dct %}
|
|
<br><span class="text-warning"><i class="bi bi-exclamation-triangle me-1"></i>DCT requires scipy: <code>pip install scipy</code></span>
|
|
{% endif %}
|
|
</div>
|
|
</div>
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
<button type="submit" class="btn btn-primary btn-lg w-100" id="decodeBtn">
|
|
<i class="bi bi-unlock me-2"></i>Decode
|
|
</button>
|
|
</form>
|
|
|
|
{% endif %}
|
|
</div>
|
|
</div>
|
|
|
|
{% if not decoded_message and not decoded_file %}
|
|
<div class="card mt-4">
|
|
<div class="card-body">
|
|
<h6 class="text-muted mb-3"><i class="bi bi-question-circle me-2"></i>Troubleshooting</h6>
|
|
<ul class="list-unstyled text-muted small mb-0">
|
|
<li class="mb-2">
|
|
<i class="bi bi-check-circle-fill text-success me-1"></i>
|
|
Use the <strong>exact same reference photo</strong> file (byte-for-byte identical)
|
|
</li>
|
|
<li class="mb-2">
|
|
<i class="bi bi-check-circle-fill text-success me-1"></i>
|
|
Enter the <strong>exact passphrase</strong> used during encoding (case-sensitive, spacing matters)
|
|
</li>
|
|
<li class="mb-2">
|
|
<i class="bi bi-check-circle-fill text-success me-1"></i>
|
|
Provide the <strong>same security factors</strong> (PIN and/or RSA key) used during encoding
|
|
</li>
|
|
<li class="mb-2">
|
|
<i class="bi bi-exclamation-triangle-fill text-warning me-1"></i>
|
|
Ensure the stego image hasn't been <strong>resized, cropped, or recompressed</strong>
|
|
</li>
|
|
<li class="mb-2">
|
|
<i class="bi bi-exclamation-triangle-fill text-warning me-1"></i>
|
|
<strong>Format compatibility:</strong> v4.0 cannot decode messages from v3.1 or earlier (different format)
|
|
</li>
|
|
<li class="mb-2">
|
|
<i class="bi bi-info-circle-fill text-info me-1"></i>
|
|
If using an RSA key, verify the <strong>password is correct</strong> (if key is encrypted)
|
|
</li>
|
|
<li class="mb-0">
|
|
<i class="bi bi-info-circle-fill text-info me-1"></i>
|
|
If auto-detection fails, try specifying <strong>LSB or DCT mode</strong> in Advanced Options
|
|
</li>
|
|
</ul>
|
|
</div>
|
|
</div>
|
|
{% endif %}
|
|
</div>
|
|
</div>
|
|
{% endblock %}
|
|
|
|
{% block scripts %}
|
|
<script>
|
|
// Form submit loading state
|
|
document.getElementById('decodeForm')?.addEventListener('submit', function() {
|
|
const btn = document.getElementById('decodeBtn');
|
|
const selectedMode = document.querySelector('input[name="embed_mode"]:checked')?.value || 'auto';
|
|
btn.innerHTML = `<span class="spinner-border spinner-border-sm me-2"></span>Decoding (${selectedMode.toUpperCase()})...`;
|
|
btn.disabled = true;
|
|
});
|
|
|
|
// PIN Toggle
|
|
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');
|
|
}
|
|
});
|
|
|
|
// RSA Password Toggle
|
|
document.getElementById('toggleRsaPassword')?.addEventListener('click', function() {
|
|
const input = document.getElementById('rsaPasswordInput');
|
|
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');
|
|
}
|
|
});
|
|
|
|
// RSA Input Method Toggle (File vs QR)
|
|
const rsaMethodFile = document.getElementById('rsaMethodFile');
|
|
const rsaMethodQr = document.getElementById('rsaMethodQr');
|
|
const rsaFileSection = document.getElementById('rsaFileSection');
|
|
const rsaQrSection = document.getElementById('rsaQrSection');
|
|
|
|
function updateRsaInputMethod() {
|
|
if (!rsaMethodFile || !rsaFileSection || !rsaQrSection) return;
|
|
const isFile = rsaMethodFile.checked;
|
|
rsaFileSection.classList.toggle('d-none', !isFile);
|
|
rsaQrSection.classList.toggle('d-none', isFile);
|
|
}
|
|
|
|
rsaMethodFile?.addEventListener('change', updateRsaInputMethod);
|
|
rsaMethodQr?.addEventListener('change', updateRsaInputMethod);
|
|
|
|
// Mode card highlighting
|
|
const autoModeCard = document.getElementById('autoModeCard');
|
|
const lsbModeCardDec = document.getElementById('lsbModeCardDec');
|
|
const dctModeCardDec = document.getElementById('dctModeCardDec');
|
|
const modeAuto = document.getElementById('modeAuto');
|
|
const modeLsbDec = document.getElementById('modeLsbDec');
|
|
const modeDctDec = document.getElementById('modeDctDec');
|
|
|
|
function updateModeCardHighlightDec() {
|
|
autoModeCard?.classList.toggle('border-success', modeAuto?.checked);
|
|
autoModeCard?.classList.toggle('border-2', modeAuto?.checked);
|
|
lsbModeCardDec?.classList.toggle('border-primary', modeLsbDec?.checked);
|
|
lsbModeCardDec?.classList.toggle('border-2', modeLsbDec?.checked);
|
|
dctModeCardDec?.classList.toggle('border-info', modeDctDec?.checked);
|
|
dctModeCardDec?.classList.toggle('border-2', modeDctDec?.checked);
|
|
}
|
|
|
|
modeAuto?.addEventListener('change', updateModeCardHighlightDec);
|
|
modeLsbDec?.addEventListener('change', updateModeCardHighlightDec);
|
|
modeDctDec?.addEventListener('change', updateModeCardHighlightDec);
|
|
updateModeCardHighlightDec(); // Initial state
|
|
|
|
// Advanced options chevron rotation
|
|
document.getElementById('advancedOptionsDec')?.addEventListener('show.bs.collapse', function() {
|
|
document.getElementById('advancedChevronDec').classList.add('bi-chevron-up');
|
|
document.getElementById('advancedChevronDec').classList.remove('bi-chevron-down');
|
|
});
|
|
document.getElementById('advancedOptionsDec')?.addEventListener('hide.bs.collapse', function() {
|
|
document.getElementById('advancedChevronDec').classList.remove('bi-chevron-up');
|
|
document.getElementById('advancedChevronDec').classList.add('bi-chevron-down');
|
|
});
|
|
|
|
// Paste from Clipboard
|
|
document.addEventListener('paste', function(e) {
|
|
if (!document.getElementById('decodeForm')) return;
|
|
|
|
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 stegoInput = document.querySelector('input[name="stego_image"]');
|
|
const refInput = document.querySelector('input[name="reference_photo"]');
|
|
|
|
const targetInput = (!stegoInput.files.length) ? stegoInput : refInput;
|
|
|
|
const container = new DataTransfer();
|
|
container.items.add(blob);
|
|
targetInput.files = container.files;
|
|
|
|
targetInput.dispatchEvent(new Event('change'));
|
|
break;
|
|
}
|
|
}
|
|
});
|
|
|
|
// Drag & drop with preview
|
|
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');
|
|
|
|
['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;
|
|
const file = e.dataTransfer.files[0];
|
|
showPreview(file);
|
|
}
|
|
});
|
|
|
|
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);
|
|
}
|
|
});
|
|
|
|
// QR Code RSA Key scanning
|
|
const rsaKeyQrInput = document.getElementById('rsaKeyQrInput');
|
|
const qrPreview = document.getElementById('qrPreview');
|
|
if (rsaKeyQrInput) {
|
|
rsaKeyQrInput.addEventListener('change', function() {
|
|
if (this.files && this.files[0]) {
|
|
const file = this.files[0];
|
|
|
|
// Show image preview
|
|
if (file.type.startsWith('image/')) {
|
|
const reader = new FileReader();
|
|
reader.onload = e => {
|
|
if (qrPreview) {
|
|
qrPreview.src = e.target.result;
|
|
qrPreview.classList.remove('d-none');
|
|
}
|
|
};
|
|
reader.readAsDataURL(file);
|
|
}
|
|
|
|
// Extract key from QR
|
|
const formData = new FormData();
|
|
formData.append('qr_image', file);
|
|
|
|
fetch('/extract-key-from-qr', {
|
|
method: 'POST',
|
|
body: formData
|
|
})
|
|
.then(response => response.json())
|
|
.then(data => {
|
|
if (!data.success) {
|
|
alert('QR decode failed: ' + data.error);
|
|
return;
|
|
}
|
|
// Visual feedback
|
|
document.querySelector('#qrDropZone .drop-zone-label').innerHTML =
|
|
'<i class="bi bi-check-circle text-success me-1"></i>RSA Key loaded from QR';
|
|
})
|
|
.catch(err => {
|
|
alert('QR decode failed: ' + err);
|
|
});
|
|
}
|
|
});
|
|
}
|
|
|
|
// Auto-resize passphrase input font to fit long passphrases
|
|
const passphraseInput = document.getElementById('passphraseInput');
|
|
if (passphraseInput) {
|
|
// Stepped font sizes (characters -> rem)
|
|
const fontSizeSteps = [
|
|
{ maxChars: 30, size: 1.1 },
|
|
{ maxChars: 45, size: 1.0 },
|
|
{ maxChars: 60, size: 0.95 },
|
|
{ maxChars: Infinity, size: 0.9 }
|
|
];
|
|
|
|
function adjustPassphraseFontSize() {
|
|
const len = passphraseInput.value.length;
|
|
|
|
for (const step of fontSizeSteps) {
|
|
if (len <= step.maxChars) {
|
|
passphraseInput.style.fontSize = step.size + 'rem';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
passphraseInput.addEventListener('input', adjustPassphraseFontSize);
|
|
adjustPassphraseFontSize(); // Initial call in case of pre-filled value
|
|
}
|
|
</script>
|
|
{% endblock %}
|