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<!DOCTYPE html>
<html>
<head>
<title>Protected File Download</title>
<style>
.hidden {
display: none;
}
.container {
max-width: 600px;
margin: 50px auto;
padding: 20px;
font-family: Arial, sans-serif;
}
.error {
color: red;
margin-top: 10px;
}
.success {
color: green;
margin-top: 10px;
}
button, input, select {
margin: 10px 0;
padding: 8px;
width: 100%;
}
</style>
</head>
<body>
<div class="container">
<div id="passwordSection">
<h2>Enter Password</h2>
<input type="password" id="password" placeholder="Enter password">
<button onclick="checkPassword()">Submit</button>
<div id="passwordError" class="error hidden"></div>
</div>
<div id="itemSection" class="hidden">
<h2>Select Item</h2>
<select id="itemSelect">
<option value="">Choose an item...</option>
</select>
<button id="downloadButton" class="hidden" onclick="downloadItem()">Download</button>
</div>
</div>
<script>
// Add event listener for Enter key
document.getElementById('password').addEventListener('keypress', function(event) {
if (event.key === 'Enter') {
event.preventDefault();
checkPassword();
}
});
async function checkPassword() {
const password = document.getElementById('password').value;
// sleep for 2 seconds
await new Promise(resolve => setTimeout(resolve, 2000));
try {
const response = await fetch('/api/verify-password', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify({ password: password })
});
if (response.ok) {
const items = await response.json();
showItemSection(items);
} else {
document.getElementById('passwordError').textContent = 'Invalid password';
document.getElementById('passwordError').classList.remove('hidden');
}
} catch (error) {
console.error('Error:', error);
document.getElementById('passwordError').textContent = 'Error connecting to server';
document.getElementById('passwordError').classList.remove('hidden');
}
}
function showItemSection(items) {
document.getElementById('passwordSection').classList.add('hidden');
document.getElementById('itemSection').classList.remove('hidden');
const select = document.getElementById('itemSelect');
items.forEach(item => {
const option = document.createElement('option');
option.value = item;
option.textContent = item;
select.appendChild(option);
});
select.addEventListener('change', function() {
const downloadButton = document.getElementById('downloadButton');
downloadButton.classList.toggle('hidden', !this.value);
});
}
async function downloadItem() {
const item = document.getElementById('itemSelect').value;
try {
const response = await fetch(`/api/download/${item}`);
if (!response.ok) throw new Error('Download failed');
const blob = await response.blob();
const url = window.URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
a.download = item;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
window.URL.revokeObjectURL(url);
} catch (error) {
console.error('Error:', error);
alert('Error downloading file');
}
}
</script>
</body>
</html> |