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1 // Copyright 2014 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/browser/component_updater/cld_component_installer.h" | |
6 | |
7 #include <string> | |
8 #include <utility> | |
9 #include <vector> | |
10 | |
11 #include "base/bind.h" | |
12 #include "base/files/file_path.h" | |
13 #include "base/files/file_util.h" | |
14 #include "base/lazy_instance.h" | |
15 #include "base/logging.h" | |
16 #include "base/macros.h" | |
17 #include "base/path_service.h" | |
18 #include "components/component_updater/component_updater_paths.h" | |
19 #include "components/translate/content/browser/browser_cld_data_provider.h" | |
20 #include "components/translate/content/browser/browser_cld_data_provider_factory
.h" | |
21 #include "components/translate/content/common/cld_data_source.h" | |
22 #include "content/public/browser/browser_thread.h" | |
23 #include "net/ssl/ssl_config_service.h" | |
24 | |
25 using component_updater::ComponentUpdateService; | |
26 | |
27 namespace { | |
28 // TODO(andrewhayden): Make the data file path into a gyp/gn define | |
29 // If you change this, also update component_cld_data_harness.cc | |
30 // and cld_component_installer_unittest.cc accordingly! | |
31 const base::FilePath::CharType kCldDataFileName[] = | |
32 FILE_PATH_LITERAL("cld2_data.bin"); | |
33 | |
34 // Tracks the last value seen in SetLatestCldDataFile. | |
35 base::LazyInstance<base::FilePath>::Leaky g_latest_cld_data_file = | |
36 LAZY_INSTANCE_INITIALIZER; | |
37 } // namespace | |
38 | |
39 namespace component_updater { | |
40 | |
41 // The SHA256 of the SubjectPublicKeyInfo used to sign the extension. | |
42 // The extension id is: dpedmmgabcgnikllifiidmijgoiihfgf | |
43 const uint8_t kPublicKeySHA256[32] = { | |
44 0x3f, 0x43, 0xcc, 0x60, 0x12, 0x6d, 0x8a, 0xbb, | |
45 0x85, 0x88, 0x3c, 0x89, 0x6e, 0x88, 0x75, 0x65, | |
46 0xb9, 0x46, 0x09, 0xe8, 0xca, 0x92, 0xdd, 0x82, | |
47 0x4e, 0x6d, 0x0e, 0xe6, 0x79, 0x8a, 0x87, 0xf5 | |
48 }; | |
49 | |
50 const char kCldManifestName[] = "CLD2 Data"; | |
51 | |
52 CldComponentInstallerTraits::CldComponentInstallerTraits() { | |
53 } | |
54 | |
55 bool CldComponentInstallerTraits::CanAutoUpdate() const { | |
56 return true; | |
57 } | |
58 | |
59 bool CldComponentInstallerTraits::RequiresNetworkEncryption() const { | |
60 return false; | |
61 } | |
62 | |
63 bool CldComponentInstallerTraits::OnCustomInstall( | |
64 const base::DictionaryValue& manifest, | |
65 const base::FilePath& install_dir) { | |
66 return true; // Nothing custom here. | |
67 } | |
68 | |
69 base::FilePath CldComponentInstallerTraits::GetInstalledPath( | |
70 const base::FilePath& base) { | |
71 // Currently, all platforms have the file at the same location because there | |
72 // is no binary difference in the generated file on any supported platform. | |
73 // NB: This may change when 64-bit is officially supported. | |
74 return base.Append(FILE_PATH_LITERAL("_platform_specific")) | |
75 .Append(FILE_PATH_LITERAL("all")) | |
76 .Append(kCldDataFileName); | |
77 } | |
78 | |
79 void CldComponentInstallerTraits::ComponentReady( | |
80 const base::Version& version, | |
81 const base::FilePath& path, | |
82 std::unique_ptr<base::DictionaryValue> manifest) { | |
83 VLOG(1) << "Component ready, version " << version.GetString() << " in " | |
84 << path.value(); | |
85 SetLatestCldDataFile(GetInstalledPath(path)); | |
86 } | |
87 | |
88 bool CldComponentInstallerTraits::VerifyInstallation( | |
89 const base::DictionaryValue& manifest, | |
90 const base::FilePath& install_dir) const { | |
91 // We can't really do much to verify the CLD2 data file. In theory we could | |
92 // read the headers, but that won't do much other than tell us whether or | |
93 // not the headers are valid. So just check if the file exists. | |
94 const base::FilePath expected_file = GetInstalledPath(install_dir); | |
95 VLOG(1) << "Verifying install: " << expected_file.value(); | |
96 const bool result = base::PathExists(expected_file); | |
97 VLOG(1) << "Verification result: " << (result ? "valid" : "invalid"); | |
98 return result; | |
99 } | |
100 | |
101 base::FilePath CldComponentInstallerTraits::GetRelativeInstallDir() const { | |
102 return base::FilePath(FILE_PATH_LITERAL("CLD")); | |
103 } | |
104 | |
105 void CldComponentInstallerTraits::GetHash(std::vector<uint8_t>* hash) const { | |
106 hash->assign(kPublicKeySHA256, | |
107 kPublicKeySHA256 + arraysize(kPublicKeySHA256)); | |
108 } | |
109 | |
110 std::string CldComponentInstallerTraits::GetName() const { | |
111 return kCldManifestName; | |
112 } | |
113 | |
114 std::string CldComponentInstallerTraits::GetAp() const { | |
115 return std::string(); | |
116 } | |
117 | |
118 // static | |
119 void RegisterCldComponent(ComponentUpdateService* cus) { | |
120 if (!translate::CldDataSource::IsUsingComponentDataSource()) { | |
121 // The configured CLD data source isn't the "Component" data source, so | |
122 // there is nothing to do. | |
123 return; | |
124 } | |
125 | |
126 // This log line is to help with determining which kind of provider has been | |
127 // configured. See also: chrome://translate-internals | |
128 VLOG(1) << "Registering CLD component with the component update service"; | |
129 | |
130 std::unique_ptr<ComponentInstallerTraits> traits( | |
131 new CldComponentInstallerTraits()); | |
132 // |cus| will take ownership of |installer| during installer->Register(cus). | |
133 DefaultComponentInstaller* installer = | |
134 new DefaultComponentInstaller(std::move(traits)); | |
135 installer->Register(cus, base::Closure()); | |
136 } | |
137 | |
138 void CldComponentInstallerTraits::SetLatestCldDataFile( | |
139 const base::FilePath& path) { | |
140 VLOG(1) << "Setting CLD data file location: " << path.value(); | |
141 g_latest_cld_data_file.Get() = path; | |
142 translate::CldDataSource::Get()->SetCldDataFilePath(path); | |
143 } | |
144 | |
145 base::FilePath CldComponentInstallerTraits::GetLatestCldDataFile() { | |
146 return g_latest_cld_data_file.Get(); | |
147 } | |
148 | |
149 } // namespace component_updater | |
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