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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/chromeos/fileapi/file_access_permissions.h"
      6 
      7 #include "testing/gtest/include/gtest/gtest.h"
      8 
      9 namespace chromeos {
     10 
     11 TEST(FileAccessPermissionsTest, FileAccessChecks) {
     12   base::FilePath good_dir(FILE_PATH_LITERAL("/root/dir"));
     13   base::FilePath bad_dir(FILE_PATH_LITERAL("/root"));
     14   base::FilePath good_file(FILE_PATH_LITERAL("/root/dir/good_file.txt"));
     15   base::FilePath bad_file(FILE_PATH_LITERAL("/root/dir/bad_file.txt"));
     16 
     17   std::string extension1("ddammdhioacbehjngdmkjcjbnfginlla");
     18   std::string extension2("jkhdjkhkhsdkfhsdkhrterwmtermeter");
     19 
     20   FileAccessPermissions permissions;
     21   // By default extension have no access to any local file.
     22   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_dir));
     23   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_file));
     24   EXPECT_FALSE(permissions.HasAccessPermission(extension1, bad_file));
     25   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_dir));
     26   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_file));
     27   EXPECT_FALSE(permissions.HasAccessPermission(extension2, bad_file));
     28 
     29   // After granting file access to the handler extension for a given file, it
     30   // can only access that file an nothing else.
     31   permissions.GrantAccessPermission(extension1, good_file);
     32   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_dir));
     33   EXPECT_TRUE(permissions.HasAccessPermission(extension1, good_file));
     34   EXPECT_FALSE(permissions.HasAccessPermission(extension1, bad_file));
     35   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_dir));
     36   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_file));
     37   EXPECT_FALSE(permissions.HasAccessPermission(extension2, bad_file));
     38 
     39 
     40   // After granting file access to the handler extension for a given directory,
     41   // it can access that directory and all files within it.
     42   permissions.GrantAccessPermission(extension2, good_dir);
     43   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_dir));
     44   EXPECT_TRUE(permissions.HasAccessPermission(extension1, good_file));
     45   EXPECT_FALSE(permissions.HasAccessPermission(extension1, bad_file));
     46   EXPECT_TRUE(permissions.HasAccessPermission(extension2, good_dir));
     47   EXPECT_TRUE(permissions.HasAccessPermission(extension2, good_file));
     48   EXPECT_TRUE(permissions.HasAccessPermission(extension2, bad_file));
     49 
     50   // After revoking rights for extensions, they should not be able to access
     51   // any file system element anymore.
     52   permissions.RevokePermissions(extension1);
     53   permissions.RevokePermissions(extension2);
     54   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_dir));
     55   EXPECT_FALSE(permissions.HasAccessPermission(extension1, good_file));
     56   EXPECT_FALSE(permissions.HasAccessPermission(extension1, bad_file));
     57   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_dir));
     58   EXPECT_FALSE(permissions.HasAccessPermission(extension2, good_file));
     59   EXPECT_FALSE(permissions.HasAccessPermission(extension2, bad_file));
     60 }
     61 
     62 }  // namespace chromeos
     63