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// 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) {
if (!zip::Unzip(zip_path, dir)) {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Failed(
std::string(kExtensionHandlerUnzipError)));
} else {
Send(new ExtensionUtilityHostMsg_UnzipToDir_Succeeded(dir));
}
ReleaseProcessIfNeeded();
}
void UtilityHandler::OnUnpackExtension(
const base::FilePath& extension_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();
base::FilePath working_dir = extension_path.DirName();
base::FilePath unzipped_dir = working_dir.AppendASCII(kTempExtensionName);
base::string16 error;
if (!base::CreateDirectory(unzipped_dir)) {
Send(new ExtensionUtilityHostMsg_UnpackExtension_Failed(
l10n_util::GetStringFUTF16(
IDS_EXTENSION_PACKAGE_DIRECTORY_ERROR,
base::i18n::GetDisplayStringInLTRDirectionality(
unzipped_dir.LossyDisplayName()))));
} else if (!zip::Unzip(extension_path, unzipped_dir)) {
Send(new ExtensionUtilityHostMsg_UnpackExtension_Failed(
l10n_util::GetStringUTF16(IDS_EXTENSION_PACKAGE_UNZIP_ERROR)));
} else {
Unpacker unpacker(working_dir, unzipped_dir, 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
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