chrome/common/extensions/manifest_handlers/minimum_chrome_version_checker.cc

   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/grit/chromium_strings.h"
  10 #include "components/version_info/version_info.h"
  11 #include "extensions/common/error_utils.h"
  12 #include "extensions/common/extension.h"
  13 #include "extensions/common/manifest_constants.h"
  14 #include "ui/base/l10n/l10n_util.h"
  15
  16 namespace extensions {
  17
  18 namespace keys = manifest_keys;
  19 namespace errors = manifest_errors;
  20
  21 MinimumChromeVersionChecker::MinimumChromeVersionChecker() {
  22 }
  23
  24 MinimumChromeVersionChecker::~MinimumChromeVersionChecker() {
  25 }
  26
  27 bool MinimumChromeVersionChecker::Parse(Extension* extension,
  28                                         base::string16* error) {
  29   std::string minimum_version_string;
  30   if (!extension->manifest()->GetString(keys::kMinimumChromeVersion,
  31                                         &minimum_version_string)) {
  32     *error = base::ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
  33     return false;
  34   }
  35
  36   Version minimum_version(minimum_version_string);
  37   if (!minimum_version.IsValid()) {
  38     *error = base::ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
  39     return false;
  40   }
  41
  42   Version current_version(version_info::GetVersionNumber());
  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
  58 const std::vector<std::string> MinimumChromeVersionChecker::Keys() const {
  59   return SingleKey(keys::kMinimumChromeVersion);
  60 }
  61
  62 }  // namespace extensions