ops: s3 index script #7
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mprpic
approved these changes
Jul 30, 2025
| <p>Updated: ${updated}</p> | ||
| </body> | ||
| </html>`; | ||
| } |
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Let's make this a tiny bit nicer. How about something like:
function generateHtml(objects) {
const updated = new Date().toISOString();
const rows = objects.map(obj => {
const size = obj.Size ? formatFileSize(obj.Size) : '-';
const modified = obj.LastModified ? obj.LastModified.toISOString().split('T')[0] : '-';
const escapedKey = escapeHtml(obj.Key);
return `<tr style="border-bottom: 1px solid #ddd;">
<td style="padding: 8px;"><a href="./${encodeURI(obj.Key)}" style="color: #0066cc; text-decoration: none;">${escapedKey}</a></td>
<td style="padding: 8px;">${modified}</td>
<td style="padding: 8px; text-align: right; font-family: monospace;">${size}</td>
</tr>`;
}).join('\n');
return `<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>CVE Reference Archive</title>
</head>
<body style="font-family: Arial, sans-serif; margin: 20px; color: #333;">
<h1 style="border-bottom: 1px solid #ccc; padding-bottom: 5px;">CVE Reference Archive</h1>
<table style="width: 100%; border-collapse: collapse;">
<tr style="background: #f5f5f5; border-bottom: 2px solid #ccc;">
<th style="padding: 8px; text-align: left;">Name</th>
<th style="padding: 8px; text-align: left;">Modified</th>
<th style="padding: 8px; text-align: right;">Size</th>
</tr>
${rows}
</table>
<p style="margin-top: 20px; color: #666; font-size: 0.9em;">Updated: ${updated}</p>
</body>
</html>`;
}
function formatFileSize(bytes) {
if (bytes === 0) return '0 B';
const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
const i = Math.floor(Math.log(bytes) / Math.log(1024));
return Math.round(bytes / Math.pow(1024, i) * 100) / 100 + ' ' + sizes[i];
}
function escapeHtml(text) {
const div = document.createElement('div');
div.textContent = text;
return div.innerHTML;
}
This will format it as a table, and also list some metadata for each object.
also requires a change to the list function to return entire objects instead of just keys:
async function listAllObjects(bucket) {
let contents = [];
let continuationToken;
do {
const res = await s3.send(new ListObjectsV2Command({
Bucket: bucket,
ContinuationToken: continuationToken
}));
contents = contents.concat(res.Contents || []);
continuationToken = res.IsTruncated ? res.NextContinuationToken : null;
} while (continuationToken);
return contents;
}
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Builds and uploads a simple s3 index.html page of all assets.
This likely won't scale forever, but during pilot it should be okay.