1 files changed, 85 insertions, 0 deletions
diff --git a/browser/components/extensions/ExtensionBrowsingData.jsm b/browser/components/extensions/ExtensionBrowsingData.jsm
new file mode 100644
index 0000000000..2671228e0b
--- /dev/null
+++ b/browser/components/extensions/ExtensionBrowsingData.jsm
@@ -0,0 +1,85 @@
+/* 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/. */
+"use strict";
+
+const EXPORTED_SYMBOLS = ["BrowsingDataDelegate"];
+
+const { XPCOMUtils } = ChromeUtils.importESModule(
+  "resource://gre/modules/XPCOMUtils.sys.mjs"
+);
+
+const lazy = {};
+
+XPCOMUtils.defineLazyGetter(lazy, "makeRange", () => {
+  const { ExtensionParent } = ChromeUtils.import(
+    "resource://gre/modules/ExtensionParent.jsm"
+  );
+  // Defined in ext-browsingData.js
+  return ExtensionParent.apiManager.global.makeRange;
+});
+
+ChromeUtils.defineESModuleGetters(lazy, {
+  Preferences: "resource://gre/modules/Preferences.sys.mjs",
+});
+
+XPCOMUtils.defineLazyModuleGetters(lazy, {
+  Sanitizer: "resource:///modules/Sanitizer.jsm",
+});
+
+class BrowsingDataDelegate {
+  // Unused for now
+  constructor(extension) {}
+
+  // This method returns undefined for all data types that are _not_ handled by
+  // this delegate.
+  handleRemoval(dataType, options) {
+    // TODO (Bug 1803799): Use Sanitizer.sanitize() instead of internal cleaners.
+    let o = { progress: {} };
+    switch (dataType) {
+      case "downloads":
+        return lazy.Sanitizer.items.downloads.clear(lazy.makeRange(options), o);
+      case "formData":
+        return lazy.Sanitizer.items.formdata.clear(lazy.makeRange(options), o);
+      case "history":
+        return lazy.Sanitizer.items.history.clear(lazy.makeRange(options), o);
+
+      default:
+        return undefined;
+    }
+  }
+
+  settings() {
+    const PREF_DOMAIN = "privacy.cpd.";
+    // The following prefs are the only ones in Firefox that match corresponding
+    // values used by Chrome when rerturning settings.
+    const PREF_LIST = ["cache", "cookies", "history", "formdata", "downloads"];
+
+    // since will be the start of what is returned by Sanitizer.getClearRange
+    // divided by 1000 to convert to ms.
+    // If Sanitizer.getClearRange returns undefined that means the range is
+    // currently "Everything", so we should set since to 0.
+    let clearRange = lazy.Sanitizer.getClearRange();
+    let since = clearRange ? clearRange[0] / 1000 : 0;
+    let options = { since };
+
+    let dataToRemove = {};
+    let dataRemovalPermitted = {};
+
+    for (let item of PREF_LIST) {
+      // The property formData needs a different case than the
+      // formdata preference.
+      const name = item === "formdata" ? "formData" : item;
+      dataToRemove[name] = lazy.Preferences.get(`${PREF_DOMAIN}${item}`);
+      // Firefox doesn't have the same concept of dataRemovalPermitted
+      // as Chrome, so it will always be true.
+      dataRemovalPermitted[name] = true;
+    }
+
+    return Promise.resolve({
+      options,
+      dataToRemove,
+      dataRemovalPermitted,
+    });
+  }
+}