Change to syslog logging

www/csp-violation-report-endpoint.php

@@ -1,22 +1,17 @@
 <?php
+// Send `204 No Content` status code.
+http_response_code(204);
+// collect data from post request
+$data = file_get_contents('php://input');
+if ($data = json_decode($data)) {
+    // Remove slashes from the JSON-formatted data.
+    $data = json_encode(
+        $data,
+        JSON_UNESCAPED_SLASHES
+    );
+    # set options for syslog daemon
+    openlog('report-uri', LOG_NDELAY, LOG_USER);
 
-// Start configure
-$log_file = dirname(__FILE__) . '/csp-violations.log';
-$log_file_size_limit = 1000000; // bytes - once exceeded no further entries are added
-// End configuration
-
-
-http_response_code(204); // HTTP 204 No Content
-
-$json_data = file_get_contents('php://input');
-
-// We pretty print the JSON before adding it to the log file
-if ($json_data = json_decode($json_data)) {
-    $json_data = json_encode($json_data, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
-
-    if (filesize($log_file) > $log_file_size_limit) {
-        exit(0);
-    }
-
-    file_put_contents($log_file, $json_data, FILE_APPEND | LOCK_EX);
+    # send warning about csp report
+    syslog(LOG_WARNING, $data);
 }