Skip to content

Add HTTP cache headers for static files #63

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
L3P3 merged 5 commits into from
Jan 1, 2026
Merged

Add HTTP cache headers for static files #63

Show file tree
Hide file tree
Changes from 3 commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
36cf561
Initial plan
Copilot Jan 1, 2026
d56c9d6
Add HTTP cache headers for static files with ETag and Last-Modified s…
Copilot Jan 1, 2026
8537cd2
Remove redundant ETag implementation, keep only Last-Modified
Copilot Jan 1, 2026
953213f
Simplify cache implementation: inline variables, use return instead o…
Copilot Jan 1, 2026
53f946c
Refactor cache and range request handling
L3P3 Jan 1, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 1 addition & 1 deletion package.json
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
{
"name": "rtjscomp",
"version": "0.9.12",
"version": "0.9.13",
"description": "php-like server but with javascript",
"repository": {
"type": "git",
Expand Down
44 changes: 34 additions & 10 deletions rtjscomp.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1526,8 +1526,25 @@ const request_handle = async (request, response, https) => {
}
}

// Generate Last-Modified header from file modification time
const mtime_ms = file_stat.mtimeMs;
const last_modified = new Date(mtime_ms).toUTCString();

// Check If-Modified-Since (time-based validation)
if ('if-modified-since' in request_headers) {
const if_modified_since = new Date(request_headers['if-modified-since']);
// Round mtime down to seconds for comparison (HTTP dates don't have millisecond precision)
const mtime_seconds = Math.floor(mtime_ms / 1000) * 1000;
if (!isNaN(if_modified_since) && mtime_seconds <= if_modified_since.getTime()) {
response.setHeader('Last-Modified', last_modified);
response.setHeader('Cache-Control', 'public, max-age=31536000');
throw 304;
}
}

if (spam_enabled) spam('static_send', [path, file_compression]);
response.setHeader('Cache-Control', 'public, max-age=600');
response.setHeader('Cache-Control', 'public, max-age=31536000');
response.setHeader('Last-Modified', last_modified);
if (compression_enabled_type) {
response.setHeader('Vary', 'Accept-Encoding');
}
Expand Down Expand Up @@ -1637,15 +1654,22 @@ const request_handle = async (request, response, https) => {
}

if (!response.headersSent) {
response.writeHead(err, {
'Content-Type': 'text/html',
'Cache-Control': 'no-cache, no-store',
});
response.end(`<!DOCTYPE html><html><body><h1>HTTP ${
err
}: ${
http.STATUS_CODES[err] || 'Error'
}</h1></body></html>`);
if (err === 304) {
// 304 Not Modified - headers already set, just send status
response.statusCode = 304;
response.end();
}
else {
response.writeHead(err, {
'Content-Type': 'text/html',
'Cache-Control': 'no-cache, no-store',
});
response.end(`<!DOCTYPE html><html><body><h1>HTTP ${
err
}: ${
http.STATUS_CODES[err] || 'Error'
}</h1></body></html>`);
}
}
if ('content-length' in request_headers) {
request.socket.destroy();
Expand Down