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// Copyright (c) 2012 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 "chrome/browser/extensions/startup_helper.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/message_loop/message_loop.h"
#include "base/run_loop.h"
#include "base/single_thread_task_runner.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/chrome_extensions_client.h"
#include "content/public/browser/browser_thread.h"
#include "extensions/browser/sandboxed_unpacker.h"
#include "extensions/common/extension.h"
using content::BrowserThread;
namespace extensions {
namespace {
void PrintPackExtensionMessage(const std::string& message) {
VLOG(1) << message;
}
} // namespace
StartupHelper::StartupHelper() : pack_job_succeeded_(false) {
ExtensionsClient::Set(ChromeExtensionsClient::GetInstance());
}
void StartupHelper::OnPackSuccess(
const base::FilePath& crx_path,
const base::FilePath& output_private_key_path) {
pack_job_succeeded_ = true;
PrintPackExtensionMessage(
base::UTF16ToUTF8(
PackExtensionJob::StandardSuccessMessage(crx_path,
output_private_key_path)));
}
void StartupHelper::OnPackFailure(const std::string& error_message,
ExtensionCreator::ErrorType type) {
PrintPackExtensionMessage(error_message);
}
bool StartupHelper::PackExtension(const base::CommandLine& cmd_line) {
if (!cmd_line.HasSwitch(switches::kPackExtension))
return false;
// Input Paths.
base::FilePath src_dir =
cmd_line.GetSwitchValuePath(switches::kPackExtension);
base::FilePath private_key_path;
if (cmd_line.HasSwitch(switches::kPackExtensionKey)) {
private_key_path = cmd_line.GetSwitchValuePath(switches::kPackExtensionKey);
}
// Launch a job to perform the packing on the file thread. Ignore warnings
// from the packing process. (e.g. Overwrite any existing crx file.)
pack_job_ = new PackExtensionJob(this, src_dir, private_key_path,
ExtensionCreator::kOverwriteCRX);
pack_job_->set_asynchronous(false);
pack_job_->Start();
return pack_job_succeeded_;
}
namespace {
class ValidateCrxHelper : public SandboxedUnpackerClient {
public:
ValidateCrxHelper(const CRXFileInfo& file,
const base::FilePath& temp_dir,
base::RunLoop* run_loop)
: crx_file_(file),
temp_dir_(temp_dir),
run_loop_(run_loop),
finished_(false),
success_(false) {}
bool finished() { return finished_; }
bool success() { return success_; }
const base::string16& error() { return error_; }
void Start() {
BrowserThread::PostTask(BrowserThread::FILE,
FROM_HERE,
base::Bind(&ValidateCrxHelper::StartOnFileThread,
this));
}
protected:
~ValidateCrxHelper() override {}
void OnUnpackSuccess(const base::FilePath& temp_dir,
const base::FilePath& extension_root,
const base::DictionaryValue* original_manifest,
const Extension* extension,
const SkBitmap& install_icon) override {
finished_ = true;
success_ = true;
BrowserThread::PostTask(BrowserThread::UI,
FROM_HERE,
base::Bind(&ValidateCrxHelper::FinishOnUIThread,
this));
}
void OnUnpackFailure(const CrxInstallError& error) override {
finished_ = true;
success_ = false;
error_ = error.message();
BrowserThread::PostTask(BrowserThread::UI,
FROM_HERE,
base::Bind(&ValidateCrxHelper::FinishOnUIThread,
this));
}
void FinishOnUIThread() {
CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (run_loop_->running())
run_loop_->Quit();
}
void StartOnFileThread() {
CHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
scoped_refptr<base::SingleThreadTaskRunner> file_task_runner =
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE);
scoped_refptr<SandboxedUnpacker> unpacker(new SandboxedUnpacker(
Manifest::INTERNAL, 0, /* no special creation flags */
temp_dir_, file_task_runner.get(), this));
unpacker->StartWithCrx(crx_file_);
}
// The file being validated.
const CRXFileInfo& crx_file_;
// The temporary directory where the sandboxed unpacker will do work.
const base::FilePath& temp_dir_;
// Unowned pointer to a runloop, so our consumer can wait for us to finish.
base::RunLoop* run_loop_;
// Whether we're finished unpacking;
bool finished_;
// Whether the unpacking was successful.
bool success_;
// If the unpacking wasn't successful, this contains an error message.
base::string16 error_;
};
} // namespace
bool StartupHelper::ValidateCrx(const base::CommandLine& cmd_line,
std::string* error) {
CHECK(error);
base::FilePath path = cmd_line.GetSwitchValuePath(switches::kValidateCrx);
if (path.empty()) {
*error = base::StringPrintf("Empty path passed for %s",
switches::kValidateCrx);
return false;
}
base::ScopedTempDir temp_dir;
if (!temp_dir.CreateUniqueTempDir()) {
*error = std::string("Failed to create temp dir");
return false;
}
base::RunLoop run_loop;
CRXFileInfo file(path);
scoped_refptr<ValidateCrxHelper> helper(
new ValidateCrxHelper(file, temp_dir.path(), &run_loop));
helper->Start();
run_loop.Run();
bool success = helper->success();
if (!success)
*error = base::UTF16ToUTF8(helper->error());
return success;
}
StartupHelper::~StartupHelper() {
if (pack_job_.get())
pack_job_->ClearClient();
}
} // namespace extensions
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