| 1 | /* $Id: GetVBoxUserHomeDirectory.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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| 2 | /** @file
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| 3 | * MS COM / XPCOM Abstraction Layer - GetVBoxUserHomeDirectory.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2005-2020 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 |
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| 19 | /*********************************************************************************************************************************
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| 20 | * Header Files *
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| 21 | *********************************************************************************************************************************/
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| 22 | #define LOG_GROUP LOG_GROUP_MAIN
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| 23 | #include <VBox/com/utils.h>
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| 24 |
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| 25 | #include <iprt/env.h>
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| 26 | #include <iprt/dir.h>
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| 27 | #include <iprt/param.h>
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| 28 | #include <iprt/path.h>
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| 29 | #include <iprt/string.h>
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| 30 |
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| 31 | #include <VBox/err.h>
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| 32 | #include <VBox/log.h>
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| 33 |
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| 34 |
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| 35 |
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| 36 | /*********************************************************************************************************************************
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| 37 | * Global Variables *
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| 38 | *********************************************************************************************************************************/
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| 39 | #if !defined(RT_OS_DARWIN) && !defined(RT_OS_WINDOWS)
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| 40 | char g_szXdgConfigHome[RTPATH_MAX] = "";
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| 41 | #endif
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| 42 |
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| 43 | /**
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| 44 | * Possible locations for the VirtualBox user configuration folder,
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| 45 | * listed from oldest (as in legacy) to newest. These can be either
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| 46 | * absolute or relative to the home directory. We use the first entry
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| 47 | * of the list which corresponds to a real folder on storage, or
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| 48 | * create a folder corresponding to the last in the list (the least
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| 49 | * legacy) if none do.
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| 50 | */
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| 51 | const char * const g_apcszUserHome[] =
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| 52 | {
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| 53 | #ifdef RT_OS_DARWIN
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| 54 | "Library/VirtualBox",
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| 55 | #elif defined RT_OS_WINDOWS
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| 56 | ".VirtualBox",
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| 57 | #else
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| 58 | ".VirtualBox", g_szXdgConfigHome,
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| 59 | #endif
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| 60 | };
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| 61 |
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| 62 |
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| 63 | namespace com
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| 64 | {
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| 65 |
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| 66 | static int composeHomePath(char *aDir, size_t aDirLen, const char *pcszBase)
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| 67 | {
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| 68 | int vrc;
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| 69 | if (RTPathStartsWithRoot(pcszBase))
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| 70 | vrc = RTStrCopy(aDir, aDirLen, pcszBase);
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| 71 | else
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| 72 | {
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| 73 | /* compose the config directory (full path) */
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| 74 | /** @todo r=bird: RTPathUserHome doesn't necessarily return a
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| 75 | * full (abs) path like the comment above seems to indicate. */
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| 76 | vrc = RTPathUserHome(aDir, aDirLen);
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| 77 | if (RT_SUCCESS(vrc))
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| 78 | vrc = RTPathAppend(aDir, aDirLen, pcszBase);
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| 79 | }
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| 80 | return vrc;
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| 81 | }
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| 82 |
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| 83 | int GetVBoxUserHomeDirectory(char *aDir, size_t aDirLen, bool fCreateDir)
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| 84 | {
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| 85 | AssertReturn(aDir, VERR_INVALID_POINTER);
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| 86 | AssertReturn(aDirLen > 0, VERR_BUFFER_OVERFLOW);
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| 87 |
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| 88 | /* start with null */
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| 89 | *aDir = 0;
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| 90 |
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| 91 | char szTmp[RTPATH_MAX];
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| 92 | int vrc = RTEnvGetEx(RTENV_DEFAULT, "VBOX_USER_HOME", szTmp, sizeof(szTmp), NULL);
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| 93 | if (RT_SUCCESS(vrc) || vrc == VERR_ENV_VAR_NOT_FOUND)
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| 94 | {
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| 95 | bool fFound = false;
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| 96 | if (RT_SUCCESS(vrc))
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| 97 | {
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| 98 | /* get the full path name */
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| 99 | vrc = RTPathAbs(szTmp, aDir, aDirLen);
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| 100 | }
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| 101 | else
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| 102 | {
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| 103 | #if !defined(RT_OS_WINDOWS) && !defined(RT_OS_DARWIN)
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| 104 | vrc = RTEnvGetEx(RTENV_DEFAULT, "XDG_CONFIG_HOME", g_szXdgConfigHome, sizeof(g_szXdgConfigHome), NULL);
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| 105 | if (RT_SUCCESS(vrc))
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| 106 | vrc = RTPathAppend(g_szXdgConfigHome, sizeof(g_szXdgConfigHome), "VirtualBox");
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| 107 | AssertMsg(vrc == VINF_SUCCESS || vrc == VERR_ENV_VAR_NOT_FOUND, ("%Rrc\n", vrc));
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| 108 | if (RT_FAILURE_NP(vrc))
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| 109 | vrc = RTStrCopy(g_szXdgConfigHome, sizeof(g_szXdgConfigHome), ".config/VirtualBox");
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| 110 | #endif
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| 111 | for (unsigned i = 0; i < RT_ELEMENTS(g_apcszUserHome); ++i)
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| 112 | {
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| 113 | vrc = composeHomePath(aDir, aDirLen, g_apcszUserHome[i]);
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| 114 | if ( RT_SUCCESS(vrc)
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| 115 | && RTDirExists(aDir))
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| 116 | {
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| 117 | fFound = true;
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| 118 | break;
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| 119 | }
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| 120 | }
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| 121 | }
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| 122 |
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| 123 | /* ensure the home directory exists */
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| 124 | if (RT_SUCCESS(vrc))
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| 125 | if (!fFound && fCreateDir)
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| 126 | vrc = RTDirCreateFullPath(aDir, 0700);
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| 127 | }
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| 128 |
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| 129 | return vrc;
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| 130 | }
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| 131 |
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| 132 | } /* namespace com */
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