[Sync] Add SyncEncryptionHandler

sync/test/fake_sync_encryption_handler.cc

Index: sync/test/fake_sync_encryption_handler.cc
diff --git a/sync/test/fake_sync_encryption_handler.cc b/sync/test/fake_sync_encryption_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b4908622540a7a1b343e7f8ce8086613b226ba43
--- /dev/null
+++ b/sync/test/fake_sync_encryption_handler.cc
@@ -0,0 +1,106 @@
+// Copyright (c) 2012 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 "sync/test/fake_sync_encryption_handler.h"
+
+#include "sync/protocol/nigori_specifics.pb.h"
+#include "sync/syncable/nigori_util.h"
+#include "sync/util/cryptographer.h"
+
+namespace syncer {
+
+FakeSyncEncryptionHandler::FakeSyncEncryptionHandler()
+    : encrypted_types_(SensitiveTypes()),
+      encrypt_everything_(false),
+      explicit_passphrase_(false),
+      cryptographer_(NULL) {
+}
+FakeSyncEncryptionHandler::~FakeSyncEncryptionHandler() {}
+
+void FakeSyncEncryptionHandler::Init() {
+  // Do nothing.
+}
+
+void FakeSyncEncryptionHandler::ApplyNigoriUpdate(
+    const sync_pb::NigoriSpecifics& nigori,
+    syncable::BaseTransaction* const trans) {
+  if (nigori.encrypt_everything())
+    EnableEncryptEverything();
+  if (nigori.using_explicit_passphrase())
+    explicit_passphrase_ = true;
+
+  if (!cryptographer_)
+    return;
+
+  if (cryptographer_->CanDecrypt(nigori.encrypted()))
+    cryptographer_->InstallKeys(nigori.encrypted());
+  else
+    cryptographer_->SetPendingKeys(nigori.encrypted());
+
+  if (cryptographer_->has_pending_keys()) {
+    DVLOG(1) << "OnPassPhraseRequired Sent";
+    sync_pb::EncryptedData pending_keys = cryptographer_->GetPendingKeys();
+    FOR_EACH_OBSERVER(SyncEncryptionHandler::Observer, observers_,
+                      OnPassphraseRequired(REASON_DECRYPTION,
+                                           pending_keys));
+  } else if (!cryptographer_->is_ready()) {
+    DVLOG(1) << "OnPassphraseRequired sent because cryptographer is not "
+             << "ready";
+    FOR_EACH_OBSERVER(SyncEncryptionHandler::Observer, observers_,
+                      OnPassphraseRequired(REASON_ENCRYPTION,
+                                           sync_pb::EncryptedData()));
+  }
+}
+
+void FakeSyncEncryptionHandler::UpdateNigoriFromEncryptedTypes(
+    sync_pb::NigoriSpecifics* nigori,
+    syncable::BaseTransaction* const trans) const {
+  syncable::UpdateNigoriFromEncryptedTypes(encrypted_types_,
+                                           encrypt_everything_,
+                                           nigori);
+}
+
+void FakeSyncEncryptionHandler::AddObserver(Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void FakeSyncEncryptionHandler::RemoveObserver(Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+void FakeSyncEncryptionHandler::SetEncryptionPassphrase(
+    const std::string& passphrase,
+    bool is_explicit) {
+  if (is_explicit)
+    explicit_passphrase_ = true;
+}
+
+void FakeSyncEncryptionHandler::SetDecryptionPassphrase(
+    const std::string& passphrase) {
+  // Do nothing.
+}
+
+void FakeSyncEncryptionHandler::EnableEncryptEverything() {
+  if (encrypt_everything_)
+    return;
+  encrypt_everything_ = true;
+  encrypted_types_ = ModelTypeSet::All();
+  FOR_EACH_OBSERVER(
+      Observer, observers_,
+      OnEncryptedTypesChanged(encrypted_types_, encrypt_everything_));
+}
+
+bool FakeSyncEncryptionHandler::EncryptEverythingEnabled() const {
+  return encrypt_everything_;
+}
+
+ModelTypeSet FakeSyncEncryptionHandler::GetEncryptedTypes() const {
+  return encrypted_types_;
+}
+
+bool FakeSyncEncryptionHandler::IsUsingExplicitPassphrase() const {
+  return explicit_passphrase_;
+}
+
+}  // namespace syncer