Move Chrome OS device settings stuff to chrome/browser/chromeos/settings.

chrome/browser/chromeos/login/owner_key_utils.cc

-// 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 "chrome/browser/chromeos/login/owner_key_utils.h"
-
-#include <limits>
-
-#include "base/file_path.h"
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/string_util.h"
-#include "crypto/rsa_private_key.h"
-#include "crypto/signature_creator.h"
-#include "crypto/signature_verifier.h"
-#include "chrome/browser/chromeos/cros/cros_library.h"
-#include "chrome/common/extensions/extension_constants.h"
-
-using extension_misc::kSignatureAlgorithm;
-
-namespace chromeos {
-
-///////////////////////////////////////////////////////////////////////////
-// OwnerKeyUtils
-
-// static
-OwnerKeyUtils::Factory* OwnerKeyUtils::factory_ = NULL;
-
-OwnerKeyUtils::OwnerKeyUtils() {}
-
-OwnerKeyUtils::~OwnerKeyUtils() {}
-
-///////////////////////////////////////////////////////////////////////////
-// OwnerKeyUtilsImpl
-
-class OwnerKeyUtilsImpl : public OwnerKeyUtils {
- public:
-  OwnerKeyUtilsImpl();
-
-  bool ImportPublicKey(const FilePath& key_file,
-                       std::vector<uint8>* output);
-
-  bool Verify(const std::string& data,
-              const std::vector<uint8> signature,
-              const std::vector<uint8> public_key);
-
-  bool Sign(const std::string& data,
-            std::vector<uint8>* OUT_signature,
-            crypto::RSAPrivateKey* key);
-
-  crypto::RSAPrivateKey* FindPrivateKey(const std::vector<uint8>& key);
-
-  FilePath GetOwnerKeyFilePath();
-
- protected:
-  virtual ~OwnerKeyUtilsImpl();
-
-  bool ExportPublicKeyToFile(crypto::RSAPrivateKey* pair,
-                             const FilePath& key_file);
-
- private:
-  // The file outside the owner's encrypted home directory where her
-  // key will live.
-  static const char kOwnerKeyFile[];
-
-  DISALLOW_COPY_AND_ASSIGN(OwnerKeyUtilsImpl);
-};
-
-// Defined here, instead of up above, because we need OwnerKeyUtilsImpl.
-OwnerKeyUtils* OwnerKeyUtils::Create() {
-  if (!factory_)
-    return new OwnerKeyUtilsImpl();
-  else
-    return factory_->CreateOwnerKeyUtils();
-}
-
-// static
-const char OwnerKeyUtilsImpl::kOwnerKeyFile[] = "/var/lib/whitelist/owner.key";
-
-OwnerKeyUtilsImpl::OwnerKeyUtilsImpl() {}
-
-OwnerKeyUtilsImpl::~OwnerKeyUtilsImpl() {}
-
-bool OwnerKeyUtilsImpl::ExportPublicKeyToFile(crypto::RSAPrivateKey* pair,
-                                              const FilePath& key_file) {
-  DCHECK(pair);
-  bool ok = false;
-  int safe_file_size = 0;
-
-  std::vector<uint8> to_export;
-  if (!pair->ExportPublicKey(&to_export)) {
-    LOG(ERROR) << "Formatting key for export failed!";
-    return false;
-  }
-
-  if (to_export.size() > static_cast<uint>(INT_MAX)) {
-    LOG(ERROR) << "key is too big! " << to_export.size();
-  } else {
-    safe_file_size = static_cast<int>(to_export.size());
-
-    ok = (safe_file_size ==
-          file_util::WriteFile(key_file,
-                               reinterpret_cast<char*>(&to_export.front()),
-                               safe_file_size));
-  }
-  return ok;
-}
-
-bool OwnerKeyUtilsImpl::ImportPublicKey(const FilePath& key_file,
-                                        std::vector<uint8>* output) {
-  // Get the file size (must fit in a 32 bit int for NSS).
-  int64 file_size;
-  if (!file_util::GetFileSize(key_file, &file_size)) {
-    LOG(ERROR) << "Could not get size of " << key_file.value();
-    return false;
-  }
-  if (file_size > static_cast<int64>(std::numeric_limits<int>::max())) {
-    LOG(ERROR) << key_file.value() << "is "
-               << file_size << "bytes!!!  Too big!";
-    return false;
-  }
-  int32 safe_file_size = static_cast<int32>(file_size);
-
-  output->resize(safe_file_size);
-
-  if (safe_file_size == 0) {
-    LOG(WARNING) << "Public key file is empty. This seems wrong.";
-    return false;
-  }
-
-  // Get the key data off of disk
-  int data_read = file_util::ReadFile(key_file,
-                                      reinterpret_cast<char*>(&(output->at(0))),
-                                      safe_file_size);
-  return data_read == safe_file_size;
-}
-
-bool OwnerKeyUtilsImpl::Verify(const std::string& data,
-                               const std::vector<uint8> signature,
-                               const std::vector<uint8> public_key) {
-  crypto::SignatureVerifier verifier;
-  if (!verifier.VerifyInit(kSignatureAlgorithm, sizeof(kSignatureAlgorithm),
-                           &signature[0], signature.size(),
-                           &public_key[0], public_key.size())) {
-    return false;
-  }
-
-  verifier.VerifyUpdate(reinterpret_cast<const uint8*>(data.c_str()),
-                        data.length());
-  return (verifier.VerifyFinal());
-}
-
-bool OwnerKeyUtilsImpl::Sign(const std::string& data,
-                             std::vector<uint8>* OUT_signature,
-                             crypto::RSAPrivateKey* key) {
-  scoped_ptr<crypto::SignatureCreator> signer(
-      crypto::SignatureCreator::Create(key));
-  if (!signer->Update(reinterpret_cast<const uint8*>(data.c_str()),
-                      data.length())) {
-    return false;
-  }
-  return signer->Final(OUT_signature);
-}
-
-crypto::RSAPrivateKey* OwnerKeyUtilsImpl::FindPrivateKey(
-    const std::vector<uint8>& key) {
-  return crypto::RSAPrivateKey::FindFromPublicKeyInfo(key);
-}
-
-FilePath OwnerKeyUtilsImpl::GetOwnerKeyFilePath() {
-  return FilePath(OwnerKeyUtilsImpl::kOwnerKeyFile);
-}
-
-}  // namespace chromeos