AppCaches which belong to hosted apps are not protected from deletion

content/browser/appcache/chrome_appcache_service_unittest.cc

 // Copyright (c) 2011 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 "base/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
 #include "base/scoped_temp_dir.h"
 #include "chrome/test/testing_browser_process.h"
 #include "chrome/test/testing_browser_process_test.h"
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "webkit/appcache/appcache_database.h"
 #include "webkit/appcache/appcache_storage_impl.h"
+#include "webkit/appcache/appcache_test_helper.h"
+#include "webkit/quota/mock_special_storage_policy.h"
+
+#include <set>
 
 namespace {
 const FilePath::CharType kTestingAppCacheDirname[] =
     FILE_PATH_LITERAL("Application Cache");
-}
+
+// Examples of a protected and an unprotected origin, to be used througout the
+// test.
+const char kProtectedManifest[] = "http://www.protected.com/cache.manifest";
+const char kNormalManifest[] = "http://www.normal.com/cache.manifest";
+
+}  // namespace
 
 namespace appcache {
 
 class ChromeAppCacheServiceTest : public TestingBrowserProcessTest {
  public:
   ChromeAppCacheServiceTest()
       : message_loop_(MessageLoop::TYPE_IO),
+        kProtectedManifestURL(kProtectedManifest),
+        kNormalManifestURL(kNormalManifest),
         db_thread_(BrowserThread::DB, &message_loop_),
         file_thread_(BrowserThread::FILE, &message_loop_),
         cache_thread_(BrowserThread::CACHE, &message_loop_),
         io_thread_(BrowserThread::IO, &message_loop_) {
   }
 
  protected:
+  scoped_refptr<ChromeAppCacheService> CreateAppCacheService(
+      const FilePath& appcache_path,
+      bool init_storage);
+  void InsertDataIntoAppCache(ChromeAppCacheService* appcache_service);
+
   MessageLoop message_loop_;
   ScopedTempDir temp_dir_;
+  const GURL kProtectedManifestURL;
+  const GURL kNormalManifestURL;
 
  private:
   BrowserThread db_thread_;
   BrowserThread file_thread_;
   BrowserThread cache_thread_;
   BrowserThread io_thread_;
 };
 
-TEST_F(ChromeAppCacheServiceTest, KeepOnDestruction) {
-  ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
-  FilePath appcache_path = temp_dir_.path().Append(kTestingAppCacheDirname);
+scoped_refptr<ChromeAppCacheService>
+ChromeAppCacheServiceTest::CreateAppCacheService(
+    const FilePath& appcache_path,
+    bool init_storage) {
   scoped_refptr<ChromeAppCacheService> appcache_service =
       new ChromeAppCacheService(NULL);
   const content::ResourceContext* resource_context = NULL;
+  scoped_refptr<quota::MockSpecialStoragePolicy> mock_policy =
+      new quota::MockSpecialStoragePolicy;
+  mock_policy->AddProtected(kProtectedManifestURL.GetOrigin());
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       NewRunnableMethod(appcache_service.get(),
                         &ChromeAppCacheService::InitializeOnIOThread,
                         appcache_path,
                         resource_context,
-                        scoped_refptr<quota::SpecialStoragePolicy>(NULL),
-                        false));
-  // Make the steps needed to initialize the storage of AppCache data.
+                        mock_policy));
+  // Steps needed to initialize the storage of AppCache data.
   message_loop_.RunAllPending();
-  appcache::AppCacheStorageImpl* storage =
-      static_cast<appcache::AppCacheStorageImpl*>(appcache_service->storage());
-  ASSERT_TRUE(storage->database_->db_connection());
-  ASSERT_EQ(1, storage->NewCacheId());
-  storage->disk_cache();
-  message_loop_.RunAllPending();
+  if (init_storage) {
+    appcache::AppCacheStorageImpl* storage =
+        static_cast<appcache::AppCacheStorageImpl*>(
+            appcache_service->storage());
+    storage->database_->db_connection();
+    storage->disk_cache();
+    message_loop_.RunAllPending();
+  }
+  return appcache_service;
+}
 
+void ChromeAppCacheServiceTest::InsertDataIntoAppCache(
+    ChromeAppCacheService* appcache_service) {
+  AppCacheTestHelper appcache_helper;
+  appcache_helper.AddGroupAndCache(appcache_service, kNormalManifestURL);
+  appcache_helper.AddGroupAndCache(appcache_service, kProtectedManifestURL);
+
+  // Verify that adding the data succeeded
+  std::set<GURL> origins;
+  appcache_helper.GetOriginsWithCaches(appcache_service, &origins);
+  ASSERT_EQ(2UL, origins.size());
+  ASSERT_TRUE(origins.find(kProtectedManifestURL.GetOrigin()) != origins.end());
+  ASSERT_TRUE(origins.find(kNormalManifestURL.GetOrigin()) != origins.end());
+}
+
+TEST_F(ChromeAppCacheServiceTest, KeepOnDestruction) {
+  ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
+  FilePath appcache_path = temp_dir_.path().Append(kTestingAppCacheDirname);
+
+  // Create a ChromeAppCacheService and insert data into it
+  scoped_refptr<ChromeAppCacheService> appcache_service =
+      CreateAppCacheService(appcache_path, true);
   ASSERT_TRUE(file_util::PathExists(appcache_path));
   ASSERT_TRUE(file_util::PathExists(appcache_path.AppendASCII("Index")));
+  InsertDataIntoAppCache(appcache_service);
 
+  // Test: delete the ChromeAppCacheService
+  appcache_service->set_clear_local_state_on_exit(false);
   appcache_service = NULL;
   message_loop_.RunAllPending();
 
+  // Recreate the appcache (for reading the data back)
+  appcache_service = CreateAppCacheService(appcache_path, false);
+
+  // The directory is still there
   ASSERT_TRUE(file_util::PathExists(appcache_path));
+
+  // The appcache data is also there
+  AppCacheTestHelper appcache_helper;
+  std::set<GURL> origins;
+  appcache_helper.GetOriginsWithCaches(appcache_service, &origins);
+  EXPECT_EQ(2UL, origins.size());
+  EXPECT_TRUE(origins.find(kProtectedManifestURL.GetOrigin()) != origins.end());
+  EXPECT_TRUE(origins.find(kNormalManifestURL.GetOrigin()) != origins.end());
 }
 
 TEST_F(ChromeAppCacheServiceTest, RemoveOnDestruction) {
   ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
   FilePath appcache_path = temp_dir_.path().Append(kTestingAppCacheDirname);
+
+  // Create a ChromeAppCacheService and insert data into it
   scoped_refptr<ChromeAppCacheService> appcache_service =
-      new ChromeAppCacheService(NULL);
-  const content::ResourceContext* resource_context = NULL;
-  BrowserThread::PostTask(
-      BrowserThread::IO, FROM_HERE,
-      NewRunnableMethod(appcache_service.get(),
-                        &ChromeAppCacheService::InitializeOnIOThread,
-                        appcache_path,
-                        resource_context,
-                        scoped_refptr<quota::SpecialStoragePolicy>(NULL),
-                        true));
-  // Make the steps needed to initialize the storage of AppCache data.
-  message_loop_.RunAllPending();
-  appcache::AppCacheStorageImpl* storage =
-      static_cast<appcache::AppCacheStorageImpl*>(appcache_service->storage());
-  ASSERT_TRUE(storage->database_->db_connection());
-  ASSERT_EQ(1, storage->NewCacheId());
-  storage->disk_cache();
-  message_loop_.RunAllPending();
-
+      CreateAppCacheService(appcache_path, true);
   ASSERT_TRUE(file_util::PathExists(appcache_path));
   ASSERT_TRUE(file_util::PathExists(appcache_path.AppendASCII("Index")));
+  InsertDataIntoAppCache(appcache_service);
 
+  // Test: delete the ChromeAppCacheService
+  appcache_service->set_clear_local_state_on_exit(true);
   appcache_service = NULL;
   message_loop_.RunAllPending();
 
-  ASSERT_FALSE(file_util::PathExists(appcache_path));
+  // Recreate the appcache (for reading the data back)
+  appcache_service = CreateAppCacheService(appcache_path, false);
+
+  // The directory is still there
+  ASSERT_TRUE(file_util::PathExists(appcache_path));
+
+  // The appcache data for the protected origin is there, and the data for the
+  // unprotected origin was deleted.
+  AppCacheTestHelper appcache_helper;
+  std::set<GURL> origins;
+  appcache_helper.GetOriginsWithCaches(appcache_service, &origins);
+  EXPECT_EQ(1UL, origins.size());
+  EXPECT_TRUE(origins.find(kProtectedManifestURL.GetOrigin()) != origins.end());
+  EXPECT_TRUE(origins.find(kNormalManifestURL.GetOrigin()) == origins.end());
 }
 
 }  // namespace appcache