summaryrefslogtreecommitdiffstats
path: root/desktop/win32/source/officeloader/officeloader.cxx
blob: cd471ca2a5f93a094925e52da4897f8311204c53 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <cstddef>

#include <systools/win32/uwinapi.h>
#include <stdlib.h>
#include <desktop/exithelper.h>

#include "../loader.hxx"

static LPWSTR *GetCommandArgs( int *pArgc )
{
    return CommandLineToArgvW( GetCommandLineW(), pArgc );
}

int WINAPI wWinMain( HINSTANCE, HINSTANCE, LPWSTR, int )
{
    WCHAR        szTargetFileName[MAX_PATH] = {};
    WCHAR        szIniDirectory[MAX_PATH];
    STARTUPINFOW aStartupInfo;

    desktop_win32::extendLoaderEnvironment(szTargetFileName, szIniDirectory);

    ZeroMemory( &aStartupInfo, sizeof(aStartupInfo) );
    aStartupInfo.cb = sizeof(aStartupInfo);

    // Create process with same command line, environment and stdio handles which
    // are directed to the created pipes
    GetStartupInfoW(&aStartupInfo);

    // If this process hasn't its stdio handles set, then check if its parent
    // has a console (i.e. this process is launched from command line), and if so,
    // attach to it. It will enable child process to retrieve this console if it needs
    // to output to console
    if ((aStartupInfo.dwFlags & STARTF_USESTDHANDLES) == 0)
        AttachConsole(ATTACH_PARENT_PROCESS);

    DWORD   dwExitCode = DWORD(-1);

    BOOL    fSuccess = FALSE;
    LPWSTR  lpCommandLine = nullptr;
    int argc = 0;
    LPWSTR * argv = nullptr;
    bool bFirst = true;
    WCHAR cwd[MAX_PATH];
    DWORD cwdLen = GetCurrentDirectoryW(MAX_PATH, cwd);
    if (cwdLen >= MAX_PATH) {
        cwdLen = 0;
    }

    do
    {
        if ( bFirst ) {
            argv = GetCommandArgs(&argc);
            std::size_t n = wcslen(argv[0]) + 2;
            for (int i = 1; i < argc; ++i) {
                n += wcslen(argv[i]) + 4; // 2 doublequotes + a space + optional trailing backslash
            }
            n += MY_LENGTH(L" \"-env:OOO_CWD=2") + 4 * cwdLen +
                MY_LENGTH(L"\"") + 1;
                // 4 * cwdLen: each char preceded by backslash, each trailing
                // backslash doubled
            lpCommandLine = new WCHAR[n];
        }
        WCHAR * p = desktop_win32::commandLineAppend(
            lpCommandLine, MY_STRING(L"\""));
        p = desktop_win32::commandLineAppend(p, argv[0]);
        for (int i = 1; i < argc; ++i) {
            if (bFirst || EXITHELPER_NORMAL_RESTART == dwExitCode || wcsncmp(argv[i], MY_STRING(L"-env:")) == 0) {
                p = desktop_win32::commandLineAppend(p, MY_STRING(L"\" \""));
                p = desktop_win32::commandLineAppend(p, argv[i]);
                const size_t arglen = wcslen(argv[i]);
                // tdf#120249: if an argument ends with backslash, we should escape it with another
                // backslash; otherwise, the trailing backslash will be treated as an escapement
                // character for the following doublequote by CommandLineToArgvW in soffice.bin. See
                // https://docs.microsoft.com/en-us/windows/desktop/api/shellapi/nf-shellapi-commandlinetoargvw
                if (arglen && argv[i][arglen-1] == '\\')
                    p = desktop_win32::commandLineAppend(p, MY_STRING(L"\\"));
            }
        }

        p = desktop_win32::commandLineAppend(
            p, MY_STRING(L"\" \"-env:OOO_CWD="));
        if (cwdLen == 0) {
            p = desktop_win32::commandLineAppend(p, MY_STRING(L"0"));
        } else {
            p = desktop_win32::commandLineAppend(p, MY_STRING(L"2"));
            p = desktop_win32::commandLineAppendEncoded(p, cwd);
        }
        desktop_win32::commandLineAppend(p, MY_STRING(L"\""));
        bFirst = false;

        WCHAR szParentProcessId[64]; // This is more than large enough for a 128 bit decimal value
        BOOL  bHeadlessMode( FALSE );

        {
            // Check command line arguments for "--headless" parameter. We only
            // set the environment variable "ATTACHED_PARENT_PROCESSID" for the headless
            // mode as self-destruction of the soffice.bin process can lead to
            // certain side-effects (log-off can result in data-loss, ".lock" is not deleted.
            // See 138244 for more information.
            int    argc2;
            LPWSTR *argv2 = GetCommandArgs( &argc2 );

            if ( argc2 > 1 )
            {
                int n;

                for ( n = 1; n < argc2; n++ )
                {
                    if ( 0 == wcsnicmp( argv2[n], L"-headless", 9 ) ||
                         0 == wcsnicmp( argv2[n], L"--headless", 10 ) )
                    {
                        bHeadlessMode = TRUE;
                    }
                }
            }

            LocalFree(argv2);
        }

        if ( _ltow( static_cast<long>(GetCurrentProcessId()),szParentProcessId, 10 ) && bHeadlessMode )
            SetEnvironmentVariableW( L"ATTACHED_PARENT_PROCESSID", szParentProcessId );

        PROCESS_INFORMATION aProcessInfo;

        fSuccess = CreateProcessW(
            szTargetFileName,
            lpCommandLine,
            nullptr,
            nullptr,
            TRUE,
            0,
            nullptr,
            szIniDirectory,
            &aStartupInfo,
            &aProcessInfo );

        if ( fSuccess )
        {
            DWORD   dwWaitResult;

            do
            {
                // On Windows XP it seems as the desktop calls WaitForInputIdle after "OpenWidth" so we have to do so
                // as if we where processing any messages

                dwWaitResult = MsgWaitForMultipleObjects( 1, &aProcessInfo.hProcess, FALSE, INFINITE, QS_ALLEVENTS );

                if (  WAIT_OBJECT_0 + 1 == dwWaitResult )
                {
                    MSG msg;

                    PeekMessageW( &msg, nullptr, 0, 0, PM_REMOVE );
                }
            } while ( WAIT_OBJECT_0 + 1 == dwWaitResult );

            dwExitCode = 0;
            GetExitCodeProcess( aProcessInfo.hProcess, &dwExitCode );

            CloseHandle( aProcessInfo.hProcess );
            CloseHandle( aProcessInfo.hThread );
        }
    } while ( fSuccess
              && ( EXITHELPER_CRASH_WITH_RESTART == dwExitCode || EXITHELPER_NORMAL_RESTART == dwExitCode ));
    delete[] lpCommandLine;
    LocalFree(argv);

    return fSuccess ? dwExitCode : -1;
}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */