Implement DelegationTracker for tracking delegated permissions to RenderFrameHosts

chrome/browser/permissions/delegation_tracker_unittest.cc

Index: chrome/browser/permissions/delegation_tracker_unittest.cc
diff --git a/chrome/browser/permissions/delegation_tracker_unittest.cc b/chrome/browser/permissions/delegation_tracker_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0e4c26a6580455168ba05f37cb04aca47e533a92
--- /dev/null
+++ b/chrome/browser/permissions/delegation_tracker_unittest.cc
@@ -0,0 +1,210 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/permissions/delegation_tracker.h"
+
+#include "content/public/browser/permission_type.h"
+#include "content/public/test/mock_render_frame_host.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using content::PermissionType;
+
+const char* kOrigin1 = "https://google.com";
+const char* kOrigin2 = "https://maps.google.com";
+const char* kOrigin3 = "https://example.com";
+
+class TestRenderFrameHost : public content::MockRenderFrameHost {
+ public:
+  TestRenderFrameHost(TestRenderFrameHost* parent, const GURL& origin)
+      : parent_(parent), origin_(origin) {}
+
+ private:
+  // MockRenderFrameHost
+  RenderFrameHost* GetParent() override { return parent_; }
+
+  url::Origin GetLastCommittedOrigin() override { return origin_; }
+
+  TestRenderFrameHost* parent_;
+  url::Origin origin_;
+};
+
+class DelegationTrackerTest : public testing::Test {
+ protected:
+  void SetDelegatedPermissions(DelegationTracker* tracker,
+                               TestRenderFrameHost* child_rfh,
+                               const std::vector<PermissionType>& types) {
+    tracker->SetDelegatedPermissionsInternal(child_rfh, nullptr, types);
+  }
+
+  void RenderFrameHostChanged(DelegationTracker* tracker,
+                              TestRenderFrameHost* child_rfh) {
+    tracker->RenderFrameHostChanged(child_rfh);
+  }
+};
+
+TEST_F(DelegationTrackerTest, SingleFrame) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, SingleAncestorSameOrigin) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost child(&parent, GURL(kOrigin1));
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, SingleAncestorNoDelegation) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost child(&parent, GURL(kOrigin2));
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, SingleAncestorPermissionDelegated) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost child(&parent, GURL(kOrigin2));
+
+  SetDelegatedPermissions(&tracker, &child, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child, PermissionType::NOTIFICATIONS));
+}
+
+TEST_F(DelegationTrackerTest, SingleAncestorMultiplePermissionsDelegated) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost child(&parent, GURL(kOrigin2));
+
+  SetDelegatedPermissions(&tracker, &child, {PermissionType::GEOLOCATION,
+                                             PermissionType::NOTIFICATIONS});
+
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::NOTIFICATIONS));
+}
+
+TEST_F(DelegationTrackerTest, SingleAncestorMultipleChildren) {
+  DelegationTracker tracker;
+  TestRenderFrameHost parent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost child1(&parent, GURL(kOrigin2));
+  TestRenderFrameHost child2(&parent, GURL(kOrigin2));
+
+  SetDelegatedPermissions(&tracker, &child1, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&child1, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child2, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, MultipleAncestorsNotDelegated) {
+  DelegationTracker tracker;
+  TestRenderFrameHost grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost parent(&grandparent, GURL(kOrigin2));
+  TestRenderFrameHost child1(&parent, GURL(kOrigin3));
+  TestRenderFrameHost child2(&parent, GURL(kOrigin3));
+
+  SetDelegatedPermissions(&tracker, &child1, {PermissionType::GEOLOCATION});
+
+  EXPECT_FALSE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child1, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child2, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, MultipleAncestorsDelegated) {
+  DelegationTracker tracker;
+  TestRenderFrameHost grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost parent(&grandparent, GURL(kOrigin2));
+  TestRenderFrameHost child1(&parent, GURL(kOrigin3));
+  TestRenderFrameHost child2(&parent, GURL(kOrigin3));
+
+  SetDelegatedPermissions(&tracker, &parent, {PermissionType::GEOLOCATION});
+  SetDelegatedPermissions(&tracker, &child1, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child1, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child2, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, MultipleAncestorsSameOrigin) {
+  DelegationTracker tracker;
+  TestRenderFrameHost grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost parent(&grandparent, GURL(kOrigin1));
+  TestRenderFrameHost child1(&parent, GURL(kOrigin1));
+  TestRenderFrameHost child2(&parent, GURL(kOrigin1));
+
+  SetDelegatedPermissions(&tracker, &parent, {PermissionType::GEOLOCATION});
+  SetDelegatedPermissions(&tracker, &child1, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child1, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child2, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, MultipleAncestorsComplexSinglePermission) {
+  DelegationTracker tracker;
+  TestRenderFrameHost great_grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost grandparent(&great_grandparent, GURL(kOrigin2));
+  TestRenderFrameHost parent1(&grandparent, GURL(kOrigin2));
+  TestRenderFrameHost parent2(&grandparent, GURL(kOrigin3));
+  TestRenderFrameHost child(&parent1, GURL(kOrigin3));
+
+  SetDelegatedPermissions(&tracker, &grandparent,
+                          {PermissionType::GEOLOCATION});
+  SetDelegatedPermissions(&tracker, &child, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&grandparent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&parent1, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&parent2, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+}
+
+TEST_F(DelegationTrackerTest, MultipleAncestorsComplexMultiplePermissions) {
+  DelegationTracker tracker;
+  TestRenderFrameHost great_grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost grandparent(&great_grandparent, GURL(kOrigin2));
+  TestRenderFrameHost parent1(&grandparent, GURL(kOrigin2));
+  TestRenderFrameHost parent2(&grandparent, GURL(kOrigin3));
+  TestRenderFrameHost child(&parent1, GURL(kOrigin3));
+
+  SetDelegatedPermissions(
+      &tracker, &grandparent,
+      {PermissionType::GEOLOCATION, PermissionType::NOTIFICATIONS});
+  SetDelegatedPermissions(&tracker, &child, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&grandparent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&grandparent, PermissionType::NOTIFICATIONS));
+
+  EXPECT_TRUE(tracker.IsGranted(&parent1, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&parent1, PermissionType::NOTIFICATIONS));
+
+  EXPECT_FALSE(tracker.IsGranted(&parent2, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&parent2, PermissionType::NOTIFICATIONS));
+
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child, PermissionType::NOTIFICATIONS));
+}
+
+TEST_F(DelegationTrackerTest, RenderFrameHostChanged) {
+  DelegationTracker tracker;
+  TestRenderFrameHost grandparent(nullptr, GURL(kOrigin1));
+  TestRenderFrameHost parent(&grandparent, GURL(kOrigin2));
+  TestRenderFrameHost child(&parent, GURL(kOrigin3));
+
+  SetDelegatedPermissions(&tracker, &parent, {PermissionType::GEOLOCATION});
+  SetDelegatedPermissions(&tracker, &child, {PermissionType::GEOLOCATION});
+
+  EXPECT_TRUE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_TRUE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+
+  RenderFrameHostChanged(&tracker, &parent);
+  EXPECT_FALSE(tracker.IsGranted(&parent, PermissionType::GEOLOCATION));
+  EXPECT_FALSE(tracker.IsGranted(&child, PermissionType::GEOLOCATION));
+}