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/notreached.h"
8 #include "base/strings/utf_string_conversions.h"
9 #include "base/version.h"
10 #include "chrome/grit/chromium_strings.h"
11 #include "components/version_info/version_info.h"
12 #include "extensions/common/error_utils.h"
13 #include "extensions/common/extension.h"
14 #include "extensions/common/manifest_constants.h"
15 #include "ui/base/l10n/l10n_util.h"
16 
17 namespace extensions {
18 
19 namespace keys = manifest_keys;
20 namespace errors = manifest_errors;
21 
MinimumChromeVersionChecker()22 MinimumChromeVersionChecker::MinimumChromeVersionChecker() {
23 }
24 
~MinimumChromeVersionChecker()25 MinimumChromeVersionChecker::~MinimumChromeVersionChecker() {
26 }
27 
Parse(Extension * extension,base::string16 * error)28 bool MinimumChromeVersionChecker::Parse(Extension* extension,
29                                         base::string16* error) {
30   std::string minimum_version_string;
31   if (!extension->manifest()->GetString(keys::kMinimumChromeVersion,
32                                         &minimum_version_string)) {
33     *error = base::ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
34     return false;
35   }
36 
37   base::Version minimum_version(minimum_version_string);
38   if (!minimum_version.IsValid()) {
39     *error = base::ASCIIToUTF16(errors::kInvalidMinimumChromeVersion);
40     return false;
41   }
42 
43   const base::Version& current_version = version_info::GetVersion();
44   if (!current_version.IsValid()) {
45     NOTREACHED();
46     return false;
47   }
48 
49   if (current_version.CompareTo(minimum_version) < 0) {
50     *error = ErrorUtils::FormatErrorMessageUTF16(
51         errors::kChromeVersionTooLow,
52         l10n_util::GetStringUTF8(IDS_PRODUCT_NAME),
53         minimum_version_string);
54     return false;
55   }
56   return true;
57 }
58 
Keys() const59 base::span<const char* const> MinimumChromeVersionChecker::Keys() const {
60   static constexpr const char* kKeys[] = {keys::kMinimumChromeVersion};
61   return kKeys;
62 }
63 
64 }  // namespace extensions
65