Primitive extension system

https://github.com/marienfressinaud/FreshRSS/issues/252
I have been using this extension system for a little while, in
particular to include custom CSS and/or JavaScript (inclusion of PHP
code is not done yet).
There is very little code and it does not impact performances.
I hurry to post it before
https://github.com/marienfressinaud/FreshRSS/issues/655

1 files changed, 35 insertions, 0 deletions

diff --git a/p/ext.php b/p/ext.php
new file mode 100644
index 000000000..cff194343
--- /dev/null
+++ b/p/ext.php
@@ -0,0 +1,35 @@
+<?php
+if (!isset($_GET['e'])) {
+	header('HTTP/1.1 400 Bad Request');
+	die();
+}
+$extension = substr($_GET['e'], 0, 64);
+if (!ctype_alpha($extension)) {
+	header('HTTP/1.1 400 Bad Request');
+	die();
+}
+
+require('../constants.php');
+$filename = FRESHRSS_PATH . '/extensions/' . $extension . '/';
+
+if (isset($_GET['j'])) {
+	header('Content-Type: application/javascript; charset=UTF-8');
+	header('Content-Disposition: inline; filename="script.js"');
+	$filename .= 'script.js';
+} elseif (isset($_GET['c'])) {
+	header('Content-Type: text/css; charset=UTF-8');
+	header('Content-Disposition: inline; filename="style.css"');
+	$filename .= 'style.css';
+}
+
+$mtime = @filemtime($filename);
+if ($mtime == false) {
+	header('HTTP/1.1 404 Not Found');
+	die();
+}
+
+require(LIB_PATH . '/http-conditional.php');
+
+if (!httpConditional($mtime, 604800, 2)) {
+	readfile($filename);
+}