Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 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 | #ifndef SANDBOX_SANDBOX_POC_MAIN_UI_WINDOW_H__ |
| 6 | #define SANDBOX_SANDBOX_POC_MAIN_UI_WINDOW_H__ |
| 7 | |
| 8 | #include <string> |
| 9 | |
| 10 | #include "base/basictypes.h" |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 11 | #include "base/strings/string16.h" |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 12 | |
| 13 | namespace sandbox { |
| 14 | class BrokerServices; |
| 15 | enum ResultCode; |
| 16 | } |
| 17 | |
| 18 | // Header file for the MainUIWindow, a simple window with a menu bar that |
| 19 | // can pop up a dialog (accessible through the menu bar), to specify a path and |
| 20 | // filename of any DLL to load and choose an entry point of his/her choice |
| 21 | // (note: only entry points with no parameters are expected to work). |
| 22 | // |
| 23 | // The purpose of this is to be able to spawn an EXE inside a SandBox, have it |
| 24 | // load a DLL and call the entry point on it to test how it behaves inside the |
| 25 | // sandbox. This is useful for developer debugging and for security testing. |
| 26 | // |
| 27 | // The MainUIWindow also has a listview that displays debugging information to |
| 28 | // the user. |
| 29 | // |
| 30 | // Sample usage: |
| 31 | // |
| 32 | // MainUIWindow window; |
| 33 | // unsigned int ret = window.CreateMainWindowAndLoop( |
| 34 | // handle_to_current_instance, |
| 35 | // ::GetCommandLineW(), |
| 36 | // show_command, |
| 37 | // broker); |
| 38 | // |
| 39 | // The CreateMainWindowAndLoop() contains a message loop that ends when the |
| 40 | // user closes the MainUIWindow. |
| 41 | |
| 42 | // This class encapsulates the Main UI window for the broker application. |
| 43 | // It simply shows a menu that gives the user the ability (through a dialog) to |
| 44 | // specify a DLL and what entry point to call in the DLL. |
| 45 | class MainUIWindow { |
| 46 | public: |
| 47 | MainUIWindow(); |
| 48 | ~MainUIWindow(); |
| 49 | |
| 50 | // Creates the main window, displays it and starts the message pump. This |
| 51 | // call will not return until user closes the main UI window that appears |
| 52 | // as a result. Arguments 'instance', 'command_line' and 'show_cmd' can be |
| 53 | // passed in directly from winmain. The 'broker' argument is a pointer to a |
| 54 | // BrokerService that will launch a new EXE inside the sandbox and load the |
| 55 | // DLL of the user's choice. |
| 56 | unsigned int CreateMainWindowAndLoop(HINSTANCE instance, |
| 57 | wchar_t* command_line, |
| 58 | int show_command, |
| 59 | sandbox::BrokerServices* broker); |
| 60 | |
| 61 | private: |
| 62 | // The default value DLL name to add to the edit box. |
| 63 | static const wchar_t kDefaultDll_[]; |
| 64 | |
| 65 | // The default value to show in the entry point. |
| 66 | static const wchar_t kDefaultEntryPoint_[]; |
| 67 | |
| 68 | // The default value to show in the log file. |
| 69 | static const wchar_t kDefaultLogFile_[]; |
| 70 | |
| 71 | // Handles the messages sent to the main UI window. The return value is the |
| 72 | // result of the message processing and depends on the message. |
| 73 | static LRESULT CALLBACK WndProc(HWND window, |
| 74 | UINT message_id, |
| 75 | WPARAM wparam, |
| 76 | LPARAM lparam); |
| 77 | |
| 78 | // Handles the messages sent to the SpawnTarget dialog. The return value is |
| 79 | // the result of the message processing and depends on the message. |
| 80 | static INT_PTR CALLBACK SpawnTargetWndProc(HWND dialog, |
| 81 | UINT message_id, |
| 82 | WPARAM wparam, |
| 83 | LPARAM lparam); |
| 84 | |
| 85 | // Retrieves a pointer to the MainWindow from a value stored along with the |
| 86 | // window handle (passed in as hwnd). Return value is a pointer to the |
| 87 | // MainUIWindow previously stored with SetWindowLong() during WM_CREATE. |
| 88 | static MainUIWindow* FromWindow(HWND main_window); |
| 89 | |
| 90 | // Handles the WM_CREATE message for the main UI window. Returns TRUE on |
| 91 | // success. |
| 92 | static BOOL OnCreate(HWND parent_window, LPCREATESTRUCT); |
| 93 | |
| 94 | // Handles the WM_DESTROY message for the main UI window. |
| 95 | void OnDestroy(HWND window); |
| 96 | |
| 97 | // Handles the WM_SIZE message for the main UI window. |
| 98 | void OnSize(HWND window, UINT state, int cx, int cy); |
| 99 | |
| 100 | // Handles the WM_PAINT message for the main UI window. |
| 101 | void OnPaint(HWND window); |
| 102 | |
| 103 | // Handles the menu command File \ Exit for the main UI window. |
| 104 | void OnFileExit(); |
| 105 | |
| 106 | // Handles the menu command Commands \ Launch for the main UI window. |
| 107 | void OnCommandsLaunch(HWND window); |
| 108 | |
| 109 | // Handles the Launch button in the SpawnTarget dialog (normally clicked |
| 110 | // after selecting DLL and entry point). OnLaunchDll will retrieve the |
| 111 | // values entered by the user and store it in the members of the class. |
| 112 | // Returns true if user selected a non-zero values for DLL filename |
| 113 | // (possibly including path also) and entry point. |
| 114 | bool OnLaunchDll(HWND dialog); |
| 115 | |
| 116 | // Spawns a target EXE inside the sandbox (with the help of the |
| 117 | // BrokerServices passed in to CreateMainWindowAndLoop), and passes to it |
| 118 | // (as command line arguments) the DLL path and the entry point function |
| 119 | // name. The EXE is expected to parse the command line and load the DLL. |
| 120 | // NOTE: The broker does not know if the target EXE successfully loaded the |
| 121 | // DLL, for that you have to rely on the EXE providing a log. |
| 122 | // Returns true if the broker reports that it was successful in creating |
| 123 | // the target and false if not. |
| 124 | bool SpawnTarget(); |
| 125 | |
| 126 | // Shows a standard File Open dialog and returns the DLL filename selected or |
| 127 | // blank string if the user cancelled (or an error occurred). |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 128 | base::string16 OnShowBrowseForDllDlg(HWND owner); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 129 | |
| 130 | // Shows a standard Save As dialog and returns the log filename selected or |
| 131 | // blank string if the user cancelled (or an error occurred). |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 132 | base::string16 OnShowBrowseForLogFileDlg(HWND owner); |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 133 | |
| 134 | // Formats a message using the supplied format string and prints it in the |
| 135 | // listview in the main UI window. Passing a NULL param in 'fmt' results in |
| 136 | // no action being performed. Maximum message length is 1K. |
| 137 | void AddDebugMessage(const wchar_t* format, ...); |
| 138 | |
| 139 | // Assists AddDebugMessage in displaying a message in the ListView. It |
| 140 | // simply wraps ListView_InsertItem to insert a debugging message to the |
| 141 | // top of the list view. Passing a NULL param in 'fmt' results in no action |
| 142 | // being performed. |
| 143 | void InsertLineInListView(wchar_t* debug_message); |
| 144 | |
| 145 | // Calls ListenPipe using the class instance received in parameter. This is |
| 146 | // used to create new threads executing ListenPipe |
| 147 | static DWORD WINAPI ListenPipeThunk(void *param); |
| 148 | |
| 149 | // Calls WaitForTargetThunk using the class instance received in parameter |
| 150 | // This is used to create new threads executing WaitForTarget. |
| 151 | static DWORD WINAPI WaitForTargetThunk(void *param); |
| 152 | |
| 153 | // Listens on a pipe and output the data received to a file and to the UI. |
| 154 | DWORD ListenPipe(); |
| 155 | |
| 156 | // Waits for the target to dies and display a message in the UI. |
| 157 | DWORD WaitForTarget(); |
| 158 | |
| 159 | // The BrokerServices will be used to spawn an EXE in a sandbox and ask |
| 160 | // it to load a DLL. |
| 161 | sandbox::BrokerServices* broker_; |
| 162 | |
| 163 | // Contains the information about the running target. |
| 164 | PROCESS_INFORMATION target_; |
| 165 | |
| 166 | // This is essentially a command line to a target executable that the |
| 167 | // broker will spawn and ask to load the DLL. |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 168 | base::string16 spawn_target_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 169 | |
| 170 | // A handle to the current instance of the app. Passed in to this class |
| 171 | // through CreateMainWindowAndLoop. |
| 172 | HINSTANCE instance_handle_; |
| 173 | |
| 174 | // A path to the DLL that the target should load once it executes. |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 175 | base::string16 dll_path_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 176 | |
| 177 | // The name of the entry point the target should call after it loads the DLL. |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 178 | base::string16 entry_point_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 179 | |
| 180 | // The name of the log file to use. |
Torne (Richard Coles) | 5d1f7b1 | 2014-02-21 12:16:55 +0000 | [diff] [blame] | 181 | base::string16 log_file_; |
Torne (Richard Coles) | 5821806 | 2012-11-14 11:43:16 +0000 | [diff] [blame] | 182 | |
| 183 | // This is a static handle to the list view that fills up the entire main |
| 184 | // UI window. The list view is used to display debugging information to the |
| 185 | // user. |
| 186 | static HWND list_view_; |
| 187 | |
| 188 | // Pipe used to communicate the logs between the target and the broker. |
| 189 | HANDLE pipe_handle_; |
| 190 | |
| 191 | DISALLOW_COPY_AND_ASSIGN(MainUIWindow); |
| 192 | }; |
| 193 | |
| 194 | #endif // SANDBOX_SANDBOX_POC_MAIN_UI_WINDOW_H__ |