Initial Commit

packages/observability/monitor/analytics-browser/src/consent/consent.ts

@@ -0,0 +1,29 @@
+import type {
+    AnalyticsEvent,
+    ConsentPolicy,
+} from "../types/analytics.types.js";
+
+/**
+ * Permits every event. Default policy when none is supplied to the
+ * tracker.
+ */
+export class AllowAllPolicy implements ConsentPolicy {
+    public isAllowed(_event: AnalyticsEvent): boolean {
+        return true;
+    }
+}
+
+/**
+ * Honours the host's `Do Not Track` signal. Blocks every event when
+ * `navigator.doNotTrack === "1"`, otherwise permits every event. Reads
+ * the navigator lazily inside `isAllowed` so the policy is constructable
+ * in SSR / Node contexts where `navigator` does not exist.
+ */
+export class DoNotTrackPolicy implements ConsentPolicy {
+    public isAllowed(_event: AnalyticsEvent): boolean {
+        if (typeof navigator === "undefined") {
+            return true;
+        }
+        return navigator.doNotTrack !== "1";
+    }
+}