1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
// Copyright 2014 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 "extensions/utility/utility_handler.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/i18n/rtl.h"
#include "content/public/utility/utility_thread.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_l10n_util.h"
#include "extensions/common/extension_utility_messages.h"
#include "extensions/common/extensions_client.h"
#include "extensions/common/manifest.h"
#include "extensions/common/update_manifest.h"
#include "extensions/strings/grit/extensions_strings.h"
#include "extensions/utility/unpacker.h"
#include "ipc/ipc_message.h"
#include "ipc/ipc_message_macros.h"
#include "third_party/zlib/google/zip.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/ui_base_switches.h"
namespace extensions {
namespace {
bool Send(IPC::Message* message) {
return content::UtilityThread::Get()->Send(message);
}
void ReleaseProcessIfNeeded() {
content::UtilityThread::Get()->ReleaseProcessIfNeeded();
}
const char kExtensionHandlerUnzipError[] =
"Could not unzip extension for install.";
} // namespace
UtilityHandler::UtilityHandler() {
}
UtilityHandler::~UtilityHandler() {
}
// static
void UtilityHandler::UtilityThreadStarted() {
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
std::string lang = command_line->GetSwitchValueASCII(switches::kLang);
if (!lang.empty())
extension_l10n_util::SetProcessLocale(lang);
}
bool UtilityHandler::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(UtilityHandler, message)
IPC_MESSAGE_HANDLER(ExtensionUtilityMsg_ParseUpdateManifest,
OnParseUpdateManifest)
IPC_MESSAGE_HANDLER(ExtensionUtilityMsg_UnzipToDir, OnUnzipToDir)
IPC_MESSAGE_HANDLER(ExtensionUtilityMsg_UnpackExtension, OnUnpackExtension)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void UtilityHandler::OnParseUpdateManifest(const std::string& xml) {
UpdateManifest manifest;
if (!manifest.Parse(xml)) {
Send(new ExtensionUtilityHostMsg_ParseUpdateManifest_Failed(
manifest.errors()));
} else {
Send(new ExtensionUtilityHostMsg_ParseUpdateManifest_Succeeded(
manifest.results()));
}
ReleaseProcessIfNeeded();
}
void UtilityHandler::OnUnzipToDir(const base::FilePath& zip_path,
const base::FilePath& dir) {
// First extract only the manifest to determine the extension type.
if (!zip::UnzipWithFilterCallback(zip_path, dir,
base::Bind(&Unpacker::IsManifestFile),
false /* log_skipped_files */)) {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Failed(
std::string(kExtensionHandlerUnzipError)));
ReleaseProcessIfNeeded();
return;
}
// Load the manifest.
std::string error;
std::unique_ptr<base::DictionaryValue> dict =
Unpacker::ReadManifest(dir, &error);
if (!dict.get()) {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Failed(
std::string(kExtensionHandlerUnzipError)));
ReleaseProcessIfNeeded();
return;
}
Manifest manifest(Manifest::INTERNAL, std::move(dict));
base::Callback<bool(const base::FilePath&)> filetype_filter_cb =
base::Bind(&Unpacker::ShouldExtractFile, manifest.is_theme());
// TODO(crbug.com/645263): This silently ignores blocked file types.
// Add install warnings.
if (!zip::UnzipWithFilterCallback(zip_path, dir, filetype_filter_cb,
true /* log_skipped_files */)) {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Failed(
std::string(kExtensionHandlerUnzipError)));
} else {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Succeeded(dir));
}
ReleaseProcessIfNeeded();
}
void UtilityHandler::OnUnpackExtension(const base::FilePath& directory_path,
const std::string& extension_id,
int location,
int creation_flags) {
CHECK_GT(location, Manifest::INVALID_LOCATION);
CHECK_LT(location, Manifest::NUM_LOCATIONS);
DCHECK(ExtensionsClient::Get());
content::UtilityThread::Get()->EnsureBlinkInitialized();
Unpacker unpacker(directory_path.DirName(), directory_path, extension_id,
static_cast<Manifest::Location>(location), creation_flags);
if (unpacker.Run()) {
Send(new ExtensionUtilityHostMsg_UnpackExtension_Succeeded(
*unpacker.parsed_manifest()));
} else {
Send(new ExtensionUtilityHostMsg_UnpackExtension_Failed(
unpacker.error_message()));
}
ReleaseProcessIfNeeded();
}
} // namespace extensions
|
