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1 // Copyright (c) 2011 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. | |
4 | |
5 #include "chrome_frame/chrome_launcher_utils.h" | |
6 | |
7 #include "base/base_switches.h" | |
8 #include "base/command_line.h" | |
9 #include "base/file_util.h" | |
10 #include "base/logging.h" | |
11 #include "base/memory/scoped_ptr.h" | |
12 #include "base/path_service.h" | |
13 #include "base/strings/string_util.h" | |
14 #include "base/win/windows_version.h" | |
15 #include "chrome/common/chrome_constants.h" | |
16 #include "chrome/common/chrome_switches.h" | |
17 #include "chrome_frame/chrome_frame_automation.h" | |
18 #include "chrome_frame/policy_settings.h" | |
19 | |
20 namespace { | |
21 | |
22 const char kUpdateCommandFlag[] = "--update-cmd"; | |
23 | |
24 // Searches for the path to chrome_launcher.exe. Will return false if this | |
25 // executable cannot be found, otherwise the command line will be placed in | |
26 // |command_line|. | |
27 bool CreateChromeLauncherCommandLine(scoped_ptr<CommandLine>* command_line) { | |
28 DCHECK(command_line); | |
29 bool success = false; | |
30 // The launcher EXE will be in the same directory as the Chrome Frame DLL, | |
31 // so create a full path to it based on this assumption. | |
32 base::FilePath module_path; | |
33 if (PathService::Get(base::FILE_MODULE, &module_path)) { | |
34 base::FilePath current_dir = module_path.DirName(); | |
35 base::FilePath chrome_launcher = current_dir.Append( | |
36 chrome_launcher::kLauncherExeBaseName); | |
37 if (base::PathExists(chrome_launcher)) { | |
38 command_line->reset(new CommandLine(chrome_launcher)); | |
39 success = true; | |
40 } | |
41 } | |
42 | |
43 if (!success) { | |
44 NOTREACHED() << "Could not find " << chrome_launcher::kLauncherExeBaseName | |
45 << " in output dir."; | |
46 } | |
47 | |
48 return success; | |
49 } | |
50 | |
51 } // namespace | |
52 | |
53 namespace chrome_launcher { | |
54 | |
55 const wchar_t kLauncherExeBaseName[] = L"chrome_launcher.exe"; | |
56 | |
57 bool CreateUpdateCommandLine(const std::wstring& update_command, | |
58 scoped_ptr<CommandLine>* command_line) { | |
59 DCHECK(command_line); | |
60 bool success = false; | |
61 | |
62 if (CreateChromeLauncherCommandLine(command_line)) { | |
63 (*command_line)->AppendArg(kUpdateCommandFlag); | |
64 (*command_line)->AppendArg(WideToASCII(update_command)); | |
65 success = true; | |
66 } | |
67 | |
68 return success; | |
69 } | |
70 | |
71 bool CreateLaunchCommandLine(scoped_ptr<CommandLine>* command_line) { | |
72 DCHECK(command_line); | |
73 | |
74 // Shortcut for OS versions that don't need the integrity broker. | |
75 if (base::win::GetVersion() < base::win::VERSION_VISTA) { | |
76 command_line->reset(new CommandLine(GetChromeExecutablePath())); | |
77 | |
78 // When we do not use the Chrome Launcher, we need to add the optional extra | |
79 // parameters from the group policy here (this is normally done by the | |
80 // chrome launcher). We don't do this when we use the launcher as the | |
81 // optional arguments could trip off sanitization checks and prevent Chrome | |
82 // from being launched. | |
83 const CommandLine& additional_params = | |
84 PolicySettings::GetInstance()->AdditionalLaunchParameters(); | |
85 command_line->get()->AppendArguments(additional_params, false); | |
86 return true; | |
87 } | |
88 | |
89 return CreateChromeLauncherCommandLine(command_line); | |
90 } | |
91 | |
92 base::FilePath GetChromeExecutablePath() { | |
93 base::FilePath cur_path; | |
94 PathService::Get(base::DIR_MODULE, &cur_path); | |
95 cur_path = cur_path.Append(chrome::kBrowserProcessExecutableName); | |
96 | |
97 // The installation model for Chrome places the DLLs in a versioned | |
98 // sub-folder one down from the Chrome executable. If we fail to find | |
99 // chrome.exe in the current path, try looking one up and launching that | |
100 // instead. | |
101 if (!base::PathExists(cur_path)) { | |
102 PathService::Get(base::DIR_MODULE, &cur_path); | |
103 cur_path = cur_path.DirName().Append(chrome::kBrowserProcessExecutableName); | |
104 } | |
105 | |
106 return cur_path; | |
107 } | |
108 | |
109 } // namespace chrome_launcher | |
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