cros: Create cryptohome keys for Easy sign-in.

chrome/browser/chromeos/login/easy_unlock/easy_unlock_remove_keys_operation.cc

+// Copyright 2014 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/chromeos/login/easy_unlock/easy_unlock_remove_keys_operation.h"
+
+#include "base/bind.h"
+#include "chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.h"
+#include "chromeos/cryptohome/homedir_methods.h"
+#include "google_apis/gaia/gaia_auth_util.h"
+
+namespace chromeos {
+
+EasyUnlockRemoveKeysOperation::EasyUnlockRemoveKeysOperation(
+    const UserContext& user_context,
+    size_t start_index,
+    const RemoveKeysCallback& callback)
+    : user_context_(user_context),
+      callback_(callback),
+      key_index_(start_index),
+      weak_ptr_factory_(this) {
+  // Must have the secret and callback.
+  DCHECK(!user_context_.GetKey()->GetSecret().empty());
+  DCHECK(!callback_.is_null());
+}
+
+EasyUnlockRemoveKeysOperation::~EasyUnlockRemoveKeysOperation() {
+}
+
+void EasyUnlockRemoveKeysOperation::Start() {
+  // TODO(xiyuan): Use ListKeyEx and delete by label instead of by index.
+  RemoveKey();
+}
+
+void EasyUnlockRemoveKeysOperation::RemoveKey() {
+  std::string canonicalized =
+      gaia::CanonicalizeEmail(user_context_.GetUserID());
+  cryptohome::Identification id(canonicalized);
+  const Key* const auth_key = user_context_.GetKey();
+  cryptohome::Authorization auth(auth_key->GetSecret(), auth_key->GetLabel());
+
+  cryptohome::HomedirMethods::GetInstance()->RemoveKeyEx(
+      id,
+      auth,
+      EasyUnlockKeyManager::GetKeyLabel(key_index_),
+      base::Bind(&EasyUnlockRemoveKeysOperation::OnKeyRemoved,
+                 weak_ptr_factory_.GetWeakPtr()));
+}
+
+void EasyUnlockRemoveKeysOperation::OnKeyRemoved(
+    bool success,
+    cryptohome::MountError return_code) {
+  if (success) {
+    ++key_index_;
+    RemoveKey();
+    return;
+  }
+
+  // MOUNT_ERROR_KEY_FAILURE is considered as success. Other error codes are
+  // treated as failures.
+  if (return_code == cryptohome::MOUNT_ERROR_KEY_FAILURE) {
+    callback_.Run(true);
+  } else {
+    LOG(ERROR) << "Easy unlock remove keys operation failed, code="
+               << return_code;
+    callback_.Run(false);
+  }
+}
+
+}  // namespace chromeos