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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.
// On Mac, shortcuts can't have command-line arguments. Instead, produce small
// app bundles which locate the Chromium framework and load it, passing the
// appropriate data. This is the code for such an app bundle. It should be kept
// minimal and do as little work as possible (with as much work done on
// framework side as possible).
#include <dlfcn.h>
#include <CoreFoundation/CoreFoundation.h>
#import <Foundation/Foundation.h>
#include "base/file_util.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/mac/foundation_util.h"
#include "base/mac/scoped_nsautorelease_pool.h"
#include "base/strings/sys_string_conversions.h"
#import "chrome/common/mac/app_mode_chrome_locator.h"
#include "chrome/common/mac/app_mode_common.h"
namespace {
void LoadFramework(void** cr_dylib, app_mode::ChromeAppModeInfo* info) {
using base::SysNSStringToUTF8;
using base::SysNSStringToUTF16;
using base::mac::CFToNSCast;
using base::mac::CFCastStrict;
using base::mac::NSToCFCast;
base::mac::ScopedNSAutoreleasePool scoped_pool;
// Get the current main bundle, i.e., that of the app loader that's running.
NSBundle* app_bundle = [NSBundle mainBundle];
CHECK(app_bundle) << "couldn't get loader bundle";
// ** 1: Get path to outer Chrome bundle.
// Get the bundle ID of the browser that created this app bundle.
NSString* cr_bundle_id = base::mac::ObjCCast<NSString>(
[app_bundle objectForInfoDictionaryKey:app_mode::kBrowserBundleIDKey]);
CHECK(cr_bundle_id) << "couldn't get browser bundle ID";
// First check if Chrome exists at the last known location.
base::FilePath cr_bundle_path;
NSString* cr_bundle_path_ns =
[CFToNSCast(CFCastStrict<CFStringRef>(CFPreferencesCopyAppValue(
NSToCFCast(app_mode::kLastRunAppBundlePathPrefsKey),
NSToCFCast(cr_bundle_id)))) autorelease];
cr_bundle_path = base::mac::NSStringToFilePath(cr_bundle_path_ns);
bool found_bundle =
!cr_bundle_path.empty() && base::DirectoryExists(cr_bundle_path);
if (!found_bundle) {
// If no such bundle path exists, try to search by bundle ID.
if (!app_mode::FindBundleById(cr_bundle_id, &cr_bundle_path)) {
// TODO(jeremy): Display UI to allow user to manually locate the Chrome
// bundle.
LOG(FATAL) << "Failed to locate bundle by identifier";
}
}
// ** 2: Read information from the Chrome bundle.
string16 raw_version_str;
base::FilePath version_path;
base::FilePath framework_shlib_path;
if (!app_mode::GetChromeBundleInfo(cr_bundle_path, &raw_version_str,
&version_path, &framework_shlib_path)) {
LOG(FATAL) << "Couldn't ready Chrome bundle info";
}
// ** 3: Fill in ChromeAppModeInfo.
info->chrome_outer_bundle_path = cr_bundle_path;
info->chrome_versioned_path = version_path;
info->app_mode_bundle_path =
base::mac::NSStringToFilePath([app_bundle bundlePath]);
// Read information about the this app shortcut from the Info.plist.
// Don't check for null-ness on optional items.
NSDictionary* info_plist = [app_bundle infoDictionary];
CHECK(info_plist) << "couldn't get loader Info.plist";
info->app_mode_id = SysNSStringToUTF8(
[info_plist objectForKey:app_mode::kCrAppModeShortcutIDKey]);
CHECK(info->app_mode_id.size()) << "couldn't get app shortcut ID";
info->app_mode_name = SysNSStringToUTF16(
[info_plist objectForKey:app_mode::kCrAppModeShortcutNameKey]);
info->app_mode_url = SysNSStringToUTF8(
[info_plist objectForKey:app_mode::kCrAppModeShortcutURLKey]);
info->user_data_dir = base::mac::NSStringToFilePath(
[info_plist objectForKey:app_mode::kCrAppModeUserDataDirKey]);
info->profile_dir = base::mac::NSStringToFilePath(
[info_plist objectForKey:app_mode::kCrAppModeProfileDirKey]);
// Open the framework.
*cr_dylib = dlopen(framework_shlib_path.value().c_str(), RTLD_LAZY);
CHECK(cr_dylib) << "couldn't load framework: " << dlerror();
}
} // namespace
__attribute__((visibility("default")))
int main(int argc, char** argv) {
app_mode::ChromeAppModeInfo info;
// Hard coded info parameters.
info.major_version = 1; // v1.0
info.minor_version = 0;
info.argc = argc;
info.argv = argv;
// Load the Chrome framework.
void *cr_dylib;
LoadFramework(&cr_dylib, &info);
typedef int (*StartFun)(const app_mode::ChromeAppModeInfo*);
StartFun ChromeAppModeStart = (StartFun)dlsym(cr_dylib, "ChromeAppModeStart");
CHECK(ChromeAppModeStart) << "couldn't get entry point";
// Exit instead of returning to avoid the the removal of |main()| from stack
// backtraces under tail call optimization.
int rv = ChromeAppModeStart(&info);
exit(rv);
}
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