minimum_chrome_version_checker.cc revision ca12bfac764ba476d6cd062bf1dde12cc64c3f40 
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 "chrome/common/extensions/manifest_handlers/minimum_chrome_version_checker.h"
6
7#include "base/strings/utf_string_conversions.h"
8#include "base/version.h"
9#include "chrome/common/chrome_version_info.h"
10#include "chrome/common/extensions/extension.h"
11#include "chrome/common/extensions/extension_manifest_constants.h"
12#include "extensions/common/error_utils.h"
13#include "grit/chromium_strings.h"
14#include "ui/base/l10n/l10n_util.h"
15
16namespace keys = extension_manifest_keys;
17namespace errors = extension_manifest_errors;
18
19namespace extensions {
20
21MinimumChromeVersionChecker::MinimumChromeVersionChecker() {
22}
23
24MinimumChromeVersionChecker::~MinimumChromeVersionChecker() {
25}
26
27bool MinimumChromeVersionChecker::Parse(Extension* extension, string16* error) {
28  std::string minimum_version_string;
29  if (!extension->manifest()->GetString(keys::kMinimumChromeVersion,
30                                        &minimum_version_string)) {
31    *error = ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
32    return false;
33  }
34
35  Version minimum_version(minimum_version_string);
36  if (!minimum_version.IsValid()) {
37    *error = ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
38    return false;
39  }
40
41  chrome::VersionInfo current_version_info;
42  Version current_version(current_version_info.Version());
43  if (!current_version.IsValid()) {
44    NOTREACHED();
45    return false;
46  }
47
48  if (current_version.CompareTo(minimum_version) < 0) {
49    *error = ErrorUtils::FormatErrorMessageUTF16(
50        errors::kChromeVersionTooLow,
51        l10n_util::GetStringUTF8(IDS_PRODUCT_NAME),
52        minimum_version_string);
53    return false;
54  }
55  return true;
56}
57
58const std::vector<std::string> MinimumChromeVersionChecker::Keys() const {
59  return SingleKey(keys::kMinimumChromeVersion);
60}
61
62}  // namespace extensions
63