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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 "remoting/host/pairing_registry_delegate_win.h"
      6 
      7 #include <shlwapi.h>
      8 
      9 #include "base/guid.h"
     10 #include "base/strings/utf_string_conversions.h"
     11 #include "base/values.h"
     12 #include "base/win/registry.h"
     13 #include "testing/gtest/include/gtest/gtest.h"
     14 
     15 namespace remoting {
     16 
     17 using protocol::PairingRegistry;
     18 
     19 class PairingRegistryDelegateWinTest : public testing::Test {
     20  public:
     21   virtual void SetUp() OVERRIDE {
     22     key_name_ = base::GenerateGUID();
     23 
     24     base::win::RegKey root;
     25     EXPECT_TRUE(root.Create(HKEY_CURRENT_USER, UTF8ToWide(key_name_).c_str(),
     26                             KEY_READ | KEY_WRITE) == ERROR_SUCCESS);
     27 
     28     EXPECT_TRUE(privileged_.Create(root.Handle(), L"privileged",
     29                                    KEY_READ | KEY_WRITE) == ERROR_SUCCESS);
     30     EXPECT_TRUE(unprivileged_.Create(root.Handle(), L"unprivileged",
     31                                      KEY_READ | KEY_WRITE) == ERROR_SUCCESS);
     32   }
     33 
     34   virtual void TearDown() OVERRIDE {
     35     privileged_.Close();
     36     unprivileged_.Close();
     37     EXPECT_TRUE(SHDeleteKey(HKEY_CURRENT_USER,
     38                             UTF8ToWide(key_name_).c_str()) == ERROR_SUCCESS);
     39   }
     40 
     41  protected:
     42   std::string key_name_;
     43   base::win::RegKey privileged_;
     44   base::win::RegKey unprivileged_;
     45 };
     46 
     47 TEST_F(PairingRegistryDelegateWinTest, SaveAndLoad) {
     48   scoped_ptr<PairingRegistryDelegateWin> delegate(
     49       new PairingRegistryDelegateWin());
     50   delegate->SetRootKeys(privileged_.Handle(), unprivileged_.Handle());
     51 
     52   // Check that registry is initially empty.
     53   EXPECT_TRUE(delegate->LoadAll()->empty());
     54 
     55   // Add a couple of pairings.
     56   PairingRegistry::Pairing pairing1(base::Time::Now(), "xxx", "xxx", "xxx");
     57   PairingRegistry::Pairing pairing2(base::Time::Now(), "yyy", "yyy", "yyy");
     58   EXPECT_TRUE(delegate->Save(pairing1));
     59   EXPECT_TRUE(delegate->Save(pairing2));
     60 
     61   // Verify that there are two pairings in the store now.
     62   EXPECT_EQ(delegate->LoadAll()->GetSize(), 2u);
     63 
     64   // Verify that they can be retrieved.
     65   EXPECT_EQ(delegate->Load(pairing1.client_id()), pairing1);
     66   EXPECT_EQ(delegate->Load(pairing2.client_id()), pairing2);
     67 
     68   // Delete the first pairing.
     69   EXPECT_TRUE(delegate->Delete(pairing1.client_id()));
     70 
     71   // Verify that there is only one pairing left.
     72   EXPECT_EQ(delegate->Load(pairing1.client_id()), PairingRegistry::Pairing());
     73   EXPECT_EQ(delegate->Load(pairing2.client_id()), pairing2);
     74 
     75   // Verify that the only remaining value is |pairing2|.
     76   EXPECT_EQ(delegate->LoadAll()->GetSize(), 1u);
     77   scoped_ptr<base::ListValue> pairings = delegate->LoadAll();
     78   base::DictionaryValue* json;
     79   EXPECT_TRUE(pairings->GetDictionary(0, &json));
     80   EXPECT_EQ(PairingRegistry::Pairing::CreateFromValue(*json), pairing2);
     81 
     82   // Delete the rest and verify.
     83   EXPECT_TRUE(delegate->DeleteAll());
     84   EXPECT_TRUE(delegate->LoadAll()->empty());
     85 }
     86 
     87 // Verifies that the delegate is stateless by using two different instances.
     88 TEST_F(PairingRegistryDelegateWinTest, Stateless) {
     89   scoped_ptr<PairingRegistryDelegateWin> load_delegate(
     90       new PairingRegistryDelegateWin());
     91   load_delegate->SetRootKeys(privileged_.Handle(), unprivileged_.Handle());
     92   scoped_ptr<PairingRegistryDelegateWin> save_delegate(
     93       new PairingRegistryDelegateWin());
     94   save_delegate->SetRootKeys(privileged_.Handle(), unprivileged_.Handle());
     95 
     96   PairingRegistry::Pairing pairing(base::Time::Now(), "xxx", "xxx", "xxx");
     97   EXPECT_TRUE(save_delegate->Save(pairing));
     98   EXPECT_EQ(load_delegate->Load(pairing.client_id()), pairing);
     99 }
    100 
    101 TEST_F(PairingRegistryDelegateWinTest, Unprivileged) {
    102   scoped_ptr<PairingRegistryDelegateWin> delegate(
    103       new PairingRegistryDelegateWin());
    104   delegate->SetRootKeys(privileged_.Handle(), unprivileged_.Handle());
    105 
    106   PairingRegistry::Pairing pairing(base::Time::Now(), "xxx", "xxx", "xxx");
    107   EXPECT_TRUE(delegate->Save(pairing));
    108   EXPECT_EQ(delegate->Load(pairing.client_id()), pairing);
    109 
    110   // Strip the delegate from write access and validate that it still can be used
    111   // to read the pairings.
    112   delegate.reset(new PairingRegistryDelegateWin());
    113   delegate->SetRootKeys(NULL, unprivileged_.Handle());
    114 
    115   PairingRegistry::Pairing unprivileged_pairing =
    116       delegate->Load(pairing.client_id());
    117   EXPECT_EQ(pairing.client_id(), unprivileged_pairing.client_id());
    118   EXPECT_EQ(pairing.client_name(), unprivileged_pairing.client_name());
    119   EXPECT_EQ(pairing.created_time(), unprivileged_pairing.created_time());
    120 
    121   // Verify that the shared secret if not available.
    122   EXPECT_TRUE(unprivileged_pairing.shared_secret().empty());
    123 
    124   // Verify that a pairing cannot be saved.
    125   EXPECT_FALSE(delegate->Save(pairing));
    126 }
    127 
    128 }  // namespace remoting
    129