1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // On Mac, shortcuts can't have command-line arguments. Instead, produce small
6 // app bundles which locate the Chromium framework and load it, passing the
7 // appropriate data. This is the code for such an app bundle. It should be kept
8 // minimal and do as little work as possible (with as much work done on
9 // framework side as possible).
13 #include <CoreFoundation/CoreFoundation.h>
14 #import <Foundation/Foundation.h>
16 #include "base/file_util.h"
17 #include "base/files/file_path.h"
18 #include "base/logging.h"
19 #include "base/mac/foundation_util.h"
20 #include "base/mac/scoped_nsautorelease_pool.h"
21 #include "base/strings/sys_string_conversions.h"
22 #import "chrome/common/mac/app_mode_chrome_locator.h"
23 #include "chrome/common/mac/app_mode_common.h"
27 void LoadFramework(void** cr_dylib, app_mode::ChromeAppModeInfo* info) {
28 using base::SysNSStringToUTF8;
29 using base::SysNSStringToUTF16;
30 using base::mac::CFToNSCast;
31 using base::mac::CFCastStrict;
32 using base::mac::NSToCFCast;
34 base::mac::ScopedNSAutoreleasePool scoped_pool;
36 // Get the current main bundle, i.e., that of the app loader that's running.
37 NSBundle* app_bundle = [NSBundle mainBundle];
38 CHECK(app_bundle) << "couldn't get loader bundle";
40 // ** 1: Get path to outer Chrome bundle.
41 // Get the bundle ID of the browser that created this app bundle.
42 NSString* cr_bundle_id = base::mac::ObjCCast<NSString>(
43 [app_bundle objectForInfoDictionaryKey:app_mode::kBrowserBundleIDKey]);
44 CHECK(cr_bundle_id) << "couldn't get browser bundle ID";
46 // First check if Chrome exists at the last known location.
47 base::FilePath cr_bundle_path;
48 NSString* cr_bundle_path_ns =
49 [CFToNSCast(CFCastStrict<CFStringRef>(CFPreferencesCopyAppValue(
50 NSToCFCast(app_mode::kLastRunAppBundlePathPrefsKey),
51 NSToCFCast(cr_bundle_id)))) autorelease];
52 cr_bundle_path = base::mac::NSStringToFilePath(cr_bundle_path_ns);
54 !cr_bundle_path.empty() && base::DirectoryExists(cr_bundle_path);
57 // If no such bundle path exists, try to search by bundle ID.
58 if (!app_mode::FindBundleById(cr_bundle_id, &cr_bundle_path)) {
59 // TODO(jeremy): Display UI to allow user to manually locate the Chrome
61 LOG(FATAL) << "Failed to locate bundle by identifier";
65 // ** 2: Read information from the Chrome bundle.
66 base::string16 raw_version_str;
67 base::FilePath version_path;
68 base::FilePath framework_shlib_path;
69 if (!app_mode::GetChromeBundleInfo(cr_bundle_path, &raw_version_str,
70 &version_path, &framework_shlib_path)) {
71 LOG(FATAL) << "Couldn't ready Chrome bundle info";
74 // ** 3: Fill in ChromeAppModeInfo.
75 info->chrome_outer_bundle_path = cr_bundle_path;
76 info->chrome_versioned_path = version_path;
77 info->app_mode_bundle_path =
78 base::mac::NSStringToFilePath([app_bundle bundlePath]);
80 // Read information about the this app shortcut from the Info.plist.
81 // Don't check for null-ness on optional items.
82 NSDictionary* info_plist = [app_bundle infoDictionary];
83 CHECK(info_plist) << "couldn't get loader Info.plist";
85 info->app_mode_id = SysNSStringToUTF8(
86 [info_plist objectForKey:app_mode::kCrAppModeShortcutIDKey]);
87 CHECK(info->app_mode_id.size()) << "couldn't get app shortcut ID";
89 info->app_mode_name = SysNSStringToUTF16(
90 [info_plist objectForKey:app_mode::kCrAppModeShortcutNameKey]);
92 info->app_mode_url = SysNSStringToUTF8(
93 [info_plist objectForKey:app_mode::kCrAppModeShortcutURLKey]);
95 info->user_data_dir = base::mac::NSStringToFilePath(
96 [info_plist objectForKey:app_mode::kCrAppModeUserDataDirKey]);
98 info->profile_dir = base::mac::NSStringToFilePath(
99 [info_plist objectForKey:app_mode::kCrAppModeProfileDirKey]);
101 // Open the framework.
102 *cr_dylib = dlopen(framework_shlib_path.value().c_str(), RTLD_LAZY);
103 CHECK(cr_dylib) << "couldn't load framework: " << dlerror();
108 __attribute__((visibility("default")))
109 int main(int argc, char** argv) {
110 app_mode::ChromeAppModeInfo info;
112 // Hard coded info parameters.
113 info.major_version = 1; // v1.0
114 info.minor_version = 0;
118 // Load the Chrome framework.
120 LoadFramework(&cr_dylib, &info);
122 typedef int (*StartFun)(const app_mode::ChromeAppModeInfo*);
123 StartFun ChromeAppModeStart = (StartFun)dlsym(cr_dylib, "ChromeAppModeStart");
124 CHECK(ChromeAppModeStart) << "couldn't get entry point";
126 // Exit instead of returning to avoid the the removal of |main()| from stack
127 // backtraces under tail call optimization.
128 int rv = ChromeAppModeStart(&info);