Handle undefined array keys

paragonie · Sep 7, 2021 · 3841889 · 3841889
1 parent bb96305
commit 3841889
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/CSPBuilder.php b/src/CSPBuilder.php
@@ -203,6 +203,12 @@ public function addSource(string $directive, string $path): self
                 $directive = 'worker-src';
                 break;
         }
+        if (!isset($this->policies[$directive])) {
+            $this->policies[$directive] = [];
+        }
+        if (!isset($this->policies[$directive]['allow'])) {
+            $this->policies[$directive]['allow'] = [];
+        }
         if (!in_array($path, $this->policies[$directive]['allow'], true)) {
             $this->policies[$directive]['allow'][] = $path;
         }