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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 <windows.h>
#include <string>
#include "base/command_line.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/process/launch.h"
#include "chrome/installer/launcher_support/chrome_launcher_support.h"
namespace {
// Return codes.
const int kOK = 0;
const int kNoProgram = 1;
const int kLaunchFailure = 2;
// Command-line switches.
const char kChromeSxS[] = "chrome-sxs";
base::FilePath GetChromeExePath(bool is_canary) {
return is_canary ? chrome_launcher_support::GetAnyChromeSxSPath()
: chrome_launcher_support::GetAnyChromePath();
}
} // namespace
// This program runs chrome.exe, passing its arguments on to the Chrome binary.
// It uses the Windows registry to find chrome.exe (and hence it only works if
// Chrome/Chromium has been properly installed). It terminates as soon as the
// program is launched. It is intended to allow file types to be associated with
// Chrome apps, with a custom name (and in some cases, icon) rather than simply
// the name of the Chrome binary.
//
// Usage: app_shim_win [--chrome-sxs] -- [CHROME_ARGS...]
//
// The -- is required if switches are to be passed to Chrome; any switches
// before the -- will be interpreted by app_shim_win, and not passed to Chrome.
//
// If --chrome-sxs is specified, looks for the SxS (Canary) build of Chrome.
// This will always fail for Chromium.
int WINAPI wWinMain(HINSTANCE instance,
HINSTANCE prev_instance,
wchar_t* /*command_line*/,
int show_command) {
CommandLine::Init(0, nullptr);
// Log to stderr. Otherwise it will log to a file by default.
logging::LoggingSettings logging_settings;
logging_settings.logging_dest = logging::LOG_TO_SYSTEM_DEBUG_LOG;
logging::InitLogging(logging_settings);
// Get the command-line for the Chrome binary.
// --chrome-sxs on the command line means we should run the canary binary.
bool is_canary =
base::CommandLine::ForCurrentProcess()->HasSwitch(kChromeSxS);
base::FilePath chrome_path = GetChromeExePath(is_canary);
if (chrome_path.empty()) {
LOG(ERROR) << "Could not find chrome.exe path in the registry.";
return kNoProgram;
}
CommandLine command_line(chrome_path);
// Get the command-line arguments for the subprocess, consisting of the
// arguments (but not switches) to this binary. This gets everything after the
// "--".
for (const auto& arg : CommandLine::ForCurrentProcess()->GetArgs())
command_line.AppendArgNative(arg);
if (!base::LaunchProcess(command_line, base::LaunchOptions(), nullptr)) {
LOG(ERROR) << "Could not run chrome.exe.";
return kLaunchFailure;
}
return kOK;
}
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