1 files changed, 37 insertions, 0 deletions
diff --git a/toolkit/components/normandy/actions/BaseStudyAction.sys.mjs b/toolkit/components/normandy/actions/BaseStudyAction.sys.mjs
new file mode 100644
index 0000000000..cca66e65fa
--- /dev/null
+++ b/toolkit/components/normandy/actions/BaseStudyAction.sys.mjs
@@ -0,0 +1,37 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import { BaseAction } from "resource://normandy/actions/BaseAction.sys.mjs";
+
+const OPT_OUT_STUDIES_ENABLED_PREF = "app.shield.optoutstudies.enabled";
+
+/**
+ * Base class for local study actions.
+ *
+ * This should be subclassed. Subclasses must implement _run() for
+ * per-recipe behavior, and may implement _finalize for actions to be
+ * taken once after recipes are run.
+ *
+ * For actions that need to be taken once before recipes are run
+ * _preExecution may be overriden but the overridden method must
+ * call the parent method to ensure the appropriate checks occur.
+ *
+ * Other methods should be overridden with care, to maintain the life
+ * cycle events and error reporting implemented by this class.
+ */
+export class BaseStudyAction extends BaseAction {
+  _preExecution() {
+    if (!Services.policies.isAllowed("Shield")) {
+      this.log.debug("Disabling Shield because it's blocked by policy.");
+      this.disable();
+    }
+
+    if (!Services.prefs.getBoolPref(OPT_OUT_STUDIES_ENABLED_PREF, true)) {
+      this.log.debug(
+        "User has opted-out of opt-out experiments, disabling action."
+      );
+      this.disable();
+    }
+  }
+}