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// Copyright (c) 2010 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.
#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_OWNER_MANAGER_H_
#define CHROME_BROWSER_CHROMEOS_LOGIN_OWNER_MANAGER_H_
#pragma once
#include <vector>
#include "base/basictypes.h"
#include "base/crypto/rsa_private_key.h"
#include "base/ref_counted.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/chromeos/cros/login_library.h"
#include "chrome/browser/chromeos/login/owner_key_utils.h"
class FilePath;
class NotificationDetails;
class NotificationType;
namespace chromeos {
// This class allows the registration of an Owner of a Chromium OS device.
// It handles generating the appropriate keys and storing them in the
// appropriate locations.
class OwnerManager : public base::RefCountedThreadSafe<OwnerManager>,
public LoginLibrary::Delegate {
public:
// Return codes for public/private key operations.
enum KeyOpCode {
SUCCESS,
KEY_UNAVAILABLE, // The necessary key isn't available yet.
OPERATION_FAILED // The crypto operation failed.
};
class Delegate {
public:
// Upon completion of a key operation, this method will be called.
// |return_code| indicates what happened, |payload| will be used to pass
// back any artifacts of the operation. For example, if the operation
// was a signature attempt, the signature blob would come back in |payload|.
virtual void OnKeyOpComplete(const KeyOpCode return_code,
const std::vector<uint8>& payload) = 0;
};
OwnerManager();
virtual ~OwnerManager();
// Pulls the owner's public key off disk and into memory.
//
// Call this on the FILE thread.
void LoadOwnerKey();
// Generates the owner's keys in the default NSS token. Also stores
// them in |public_key_| and |private_key_|. When done, causes the
// public key to get exported via DBus.
//
// Call this on the FILE thread.
void GenerateKeysAndExportPublic();
// Exports |public_key_| via DBus.
//
// Call this on the UI thread (because of DBus usage).
void ExportKey();
// Overridden from LoginLibrary::Delegate
void OnComplete(bool value);
bool EnsurePublicKey();
bool EnsurePrivateKey();
// Do the actual work of signing |data| with |private_key_|. First,
// ensures that we have the keys we need. Then, computes the signature.
//
// On success, calls d->OnKeyOpComplete() on |thread_id| with a
// successful return code, passing the signaure blob in |payload|.
// On failure, calls d->OnKeyOpComplete() on |thread_id| with an appropriate
// error and passes an empty string for |payload|.
void Sign(const BrowserThread::ID thread_id,
const std::string& data,
Delegate* d);
// Do the actual work of verifying that |signature| is valid over
// |data| with |public_key_|. First, ensures we have the key we
// need, then does the verify.
//
// On success, calls d->OnKeyOpComplete() on |thread_id| with a
// successful return code, passing an empty string for |payload|.
// On failure, calls d->OnKeyOpComplete() on |thread_id| with an appropriate
// error code, passing an empty string for |payload|.
void Verify(const BrowserThread::ID thread_id,
const std::string& data,
const std::vector<uint8>& signature,
Delegate* d);
private:
// A helper method to send a notification on another thread.
void SendNotification(NotificationType type,
const NotificationDetails& details);
// A helper method to call back a delegte on another thread.
void CallDelegate(Delegate* d,
const KeyOpCode return_code,
const std::vector<uint8>& payload) {
d->OnKeyOpComplete(return_code, payload);
}
scoped_ptr<base::RSAPrivateKey> private_key_;
std::vector<uint8> public_key_;
scoped_refptr<OwnerKeyUtils> utils_;
friend class OwnerManagerTest;
DISALLOW_COPY_AND_ASSIGN(OwnerManager);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_LOGIN_OWNER_MANAGER_H_
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