Adding upstream version 6.0.4-dfsg.upstream/6.0.4-dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 608 insertions, 0 deletions

diff --git a/src/libs/xpcom18a4/xpcom/io/nsAppFileLocationProvider.cpp b/src/libs/xpcom18a4/xpcom/io/nsAppFileLocationProvider.cpp
new file mode 100644
index 00000000..eb144c55
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/io/nsAppFileLocationProvider.cpp
@@ -0,0 +1,608 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Mozilla Communicator client code, released
+ * March 31, 1998.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Conrad Carlen <conrad@ingress.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nsAppFileLocationProvider.h"
+#include "nsAppDirectoryServiceDefs.h"
+#include "nsDirectoryServiceDefs.h"
+#include "nsIAtom.h"
+#include "nsILocalFile.h"
+#include "nsString.h"
+#include "nsXPIDLString.h"
+#include "nsISimpleEnumerator.h"
+#include "prenv.h"
+#include "nsCRT.h"
+
+#if (defined(XP_MAC) || defined(XP_MACOSX)) && !defined(VBOX_MACOSX_FOLLOWS_UNIX_IO)
+#include <Folders.h>
+#include <Script.h>
+#include <Processes.h>
+#include <Gestalt.h>
+#include "nsILocalFileMac.h"
+#elif defined(XP_OS2)
+#define INCL_DOSPROCESS
+#define INCL_DOSMODULEMGR
+#include <os2.h>
+#elif defined(XP_WIN)
+#include <windows.h>
+#include <shlobj.h>
+#elif defined(XP_UNIX)
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/param.h>
+#elif defined(XP_BEOS)
+#include <sys/param.h>
+#include <kernel/image.h>
+#include <storage/FindDirectory.h>
+#endif
+
+
+// WARNING: These hard coded names need to go away. They need to
+// come from localizable resources
+
+#if defined(XP_MAC) || defined(XP_MACOSX)
+#define APP_REGISTRY_NAME NS_LITERAL_CSTRING("Application Registry")
+#define ESSENTIAL_FILES   NS_LITERAL_CSTRING("Essential Files")
+#elif defined(XP_WIN) || defined(XP_OS2)
+#define APP_REGISTRY_NAME NS_LITERAL_CSTRING("registry.dat")
+#else
+#define APP_REGISTRY_NAME NS_LITERAL_CSTRING("appreg")
+#endif
+
+// define default product directory
+#ifdef XP_MAC
+#define DEFAULT_PRODUCT_DIR NS_LITERAL_CSTRING("Mozilla")
+#else
+#define DEFAULT_PRODUCT_DIR NS_LITERAL_CSTRING(MOZ_USER_DIR)
+#endif
+
+// Locally defined keys used by nsAppDirectoryEnumerator
+#define NS_ENV_PLUGINS_DIR          "EnvPlugins"    // env var MOZ_PLUGIN_PATH
+#define NS_USER_PLUGINS_DIR         "UserPlugins"
+
+#if defined(XP_MAC) || defined(XP_MACOSX)
+#define NS_MACOSX_USER_PLUGIN_DIR   "OSXUserPlugins"
+#define NS_MACOSX_LOCAL_PLUGIN_DIR  "OSXLocalPlugins"
+#define NS_MAC_CLASSIC_PLUGIN_DIR   "MacSysPlugins"
+#endif
+
+#if defined(XP_MAC)
+#define DEFAULTS_DIR_NAME           NS_LITERAL_CSTRING("Defaults")
+#define DEFAULTS_PREF_DIR_NAME      NS_LITERAL_CSTRING("Pref")
+#define DEFAULTS_PROFILE_DIR_NAME   NS_LITERAL_CSTRING("Profile")
+#define RES_DIR_NAME                NS_LITERAL_CSTRING("Res")
+#define CHROME_DIR_NAME             NS_LITERAL_CSTRING("Chrome")
+#define PLUGINS_DIR_NAME            NS_LITERAL_CSTRING("Plug-ins")
+#define SEARCH_DIR_NAME             NS_LITERAL_CSTRING("Search Plugins")
+#else
+#define DEFAULTS_DIR_NAME           NS_LITERAL_CSTRING("defaults")
+#define DEFAULTS_PREF_DIR_NAME      NS_LITERAL_CSTRING("pref")
+#define DEFAULTS_PROFILE_DIR_NAME   NS_LITERAL_CSTRING("profile")
+#define RES_DIR_NAME                NS_LITERAL_CSTRING("res")
+#define CHROME_DIR_NAME             NS_LITERAL_CSTRING("chrome")
+#define PLUGINS_DIR_NAME            NS_LITERAL_CSTRING("plugins")
+#define SEARCH_DIR_NAME             NS_LITERAL_CSTRING("searchplugins")
+#endif
+
+//*****************************************************************************
+// nsAppFileLocationProvider::Constructor/Destructor
+//*****************************************************************************
+
+nsAppFileLocationProvider::nsAppFileLocationProvider()
+{
+}
+
+//*****************************************************************************
+// nsAppFileLocationProvider::nsISupports
+//*****************************************************************************
+
+NS_IMPL_THREADSAFE_ISUPPORTS2(nsAppFileLocationProvider, nsIDirectoryServiceProvider, nsIDirectoryServiceProvider2)
+
+//*****************************************************************************
+// nsAppFileLocationProvider::nsIDirectoryServiceProvider
+//*****************************************************************************
+
+NS_IMETHODIMP
+nsAppFileLocationProvider::GetFile(const char *prop, PRBool *persistant, nsIFile **_retval)
+{
+    nsCOMPtr<nsILocalFile>  localFile;
+    nsresult rv = NS_ERROR_FAILURE;
+
+    NS_ENSURE_ARG(prop);
+    *_retval = nsnull;
+    *persistant = PR_TRUE;
+
+#if (defined (XP_MAC) || defined(XP_MACOSX)) && !defined(VBOX_MACOSX_FOLLOWS_UNIX_IO)
+    short foundVRefNum;
+    long foundDirID;
+    FSSpec fileSpec;
+    nsCOMPtr<nsILocalFileMac> macFile;
+#endif
+
+    if (nsCRT::strcmp(prop, NS_APP_APPLICATION_REGISTRY_DIR) == 0)
+    {
+        rv = GetProductDirectory(getter_AddRefs(localFile));
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_APPLICATION_REGISTRY_FILE) == 0)
+    {
+        rv = GetProductDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendNative(APP_REGISTRY_NAME);
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_DEFAULTS_50_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(DEFAULTS_DIR_NAME);
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_PREF_DEFAULTS_50_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv)) {
+            rv = localFile->AppendRelativeNativePath(DEFAULTS_DIR_NAME);
+            if (NS_SUCCEEDED(rv))
+                rv = localFile->AppendRelativeNativePath(DEFAULTS_PREF_DIR_NAME);
+        }
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_PROFILE_DEFAULTS_50_DIR) == 0 ||
+             nsCRT::strcmp(prop, NS_APP_PROFILE_DEFAULTS_NLOC_50_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv)) {
+            rv = localFile->AppendRelativeNativePath(DEFAULTS_DIR_NAME);
+            if (NS_SUCCEEDED(rv))
+                rv = localFile->AppendRelativeNativePath(DEFAULTS_PROFILE_DIR_NAME);
+        }
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_USER_PROFILES_ROOT_DIR) == 0)
+    {
+        rv = GetDefaultUserProfileRoot(getter_AddRefs(localFile));
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_RES_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(RES_DIR_NAME);
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_CHROME_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(CHROME_DIR_NAME);
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_PLUGINS_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(PLUGINS_DIR_NAME);
+    }
+#if (defined(XP_MAC) || defined(XP_MACOSX)) && !defined(VBOX_MACOSX_FOLLOWS_UNIX_IO)
+    else if (nsCRT::strcmp(prop, NS_MACOSX_USER_PLUGIN_DIR) == 0)
+    {
+        if (!(::FindFolder(kUserDomain,
+                           kInternetPlugInFolderType,
+                           kDontCreateFolder, &foundVRefNum, &foundDirID)) &&
+            !(::FSMakeFSSpec(foundVRefNum, foundDirID, "\p", &fileSpec))) {
+            rv = NS_NewLocalFileWithFSSpec(&fileSpec, PR_TRUE, getter_AddRefs(macFile));
+            if (NS_SUCCEEDED(rv))
+                localFile = macFile;
+        }
+    }
+    else if (nsCRT::strcmp(prop, NS_MACOSX_LOCAL_PLUGIN_DIR) == 0)
+    {
+        if (!(::FindFolder(kLocalDomain,
+                           kInternetPlugInFolderType,
+                           kDontCreateFolder, &foundVRefNum, &foundDirID)) &&
+            !(::FSMakeFSSpec(foundVRefNum, foundDirID, "\p", &fileSpec))) {
+            rv = NS_NewLocalFileWithFSSpec(&fileSpec, PR_TRUE, getter_AddRefs(macFile));
+            if (NS_SUCCEEDED(rv))
+                localFile = macFile;
+        }
+    }
+    else if (nsCRT::strcmp(prop, NS_MAC_CLASSIC_PLUGIN_DIR) == 0)
+    {
+        if (!(::FindFolder(kOnAppropriateDisk,
+                           kInternetPlugInFolderType,
+                           kDontCreateFolder, &foundVRefNum, &foundDirID)) &&
+            !(::FSMakeFSSpec(foundVRefNum, foundDirID, "\p", &fileSpec))) {
+            rv = NS_NewLocalFileWithFSSpec(&fileSpec, PR_TRUE, getter_AddRefs(macFile));
+            if (NS_SUCCEEDED(rv))
+                localFile = macFile;
+        }
+    }
+#else
+    else if (nsCRT::strcmp(prop, NS_ENV_PLUGINS_DIR) == 0)
+    {
+        NS_ERROR("Don't use nsAppFileLocationProvider::GetFile(NS_ENV_PLUGINS_DIR, ...). "
+                 "Use nsAppFileLocationProvider::GetFiles(...).");
+        const char *pathVar = PR_GetEnv("VBOX_XPCOM_PLUGIN_PATH");
+        if (pathVar)
+            rv = NS_NewNativeLocalFile(nsDependentCString(pathVar), PR_TRUE, getter_AddRefs(localFile));
+    }
+    else if (nsCRT::strcmp(prop, NS_USER_PLUGINS_DIR) == 0)
+    {
+        rv = GetProductDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(PLUGINS_DIR_NAME);
+    }
+#endif
+    else if (nsCRT::strcmp(prop, NS_APP_SEARCH_DIR) == 0)
+    {
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendRelativeNativePath(SEARCH_DIR_NAME);
+    }
+    else if (nsCRT::strcmp(prop, NS_APP_INSTALL_CLEANUP_DIR) == 0)
+    {
+        // This is cloned so that embeddors will have a hook to override
+        // with their own cleanup dir.  See bugzilla bug #105087
+        rv = CloneMozBinDirectory(getter_AddRefs(localFile));
+#ifdef XP_MAC
+        if (NS_SUCCEEDED(rv))
+            rv = localFile->AppendNative(ESSENTIAL_FILES);
+#endif
+
+    }
+
+    if (localFile && NS_SUCCEEDED(rv))
+        return localFile->QueryInterface(NS_GET_IID(nsIFile), (void**)_retval);
+
+    return rv;
+}
+
+
+NS_METHOD nsAppFileLocationProvider::CloneMozBinDirectory(nsILocalFile **aLocalFile)
+{
+    NS_ENSURE_ARG_POINTER(aLocalFile);
+    nsresult rv;
+
+    if (!mMozBinDirectory)
+    {
+        // Get the mozilla bin directory
+        // 1. Check the directory service first for NS_XPCOM_CURRENT_PROCESS_DIR
+        //    This will be set if a directory was passed to NS_InitXPCOM
+        // 2. If that doesn't work, set it to be the current process directory
+        nsCOMPtr<nsIProperties>
+          directoryService(do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv));
+        if (NS_FAILED(rv))
+            return rv;
+
+        rv = directoryService->Get(NS_XPCOM_CURRENT_PROCESS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(mMozBinDirectory));
+        if (NS_FAILED(rv)) {
+            rv = directoryService->Get(NS_OS_CURRENT_PROCESS_DIR, NS_GET_IID(nsIFile), getter_AddRefs(mMozBinDirectory));
+            if (NS_FAILED(rv))
+                return rv;
+        }
+    }
+
+    nsCOMPtr<nsIFile> aFile;
+    rv = mMozBinDirectory->Clone(getter_AddRefs(aFile));
+    if (NS_FAILED(rv))
+        return rv;
+
+    nsCOMPtr<nsILocalFile> lfile = do_QueryInterface (aFile);
+    if (!lfile)
+        return NS_ERROR_FAILURE;
+
+    NS_IF_ADDREF(*aLocalFile = lfile);
+    return NS_OK;
+}
+
+
+//----------------------------------------------------------------------------------------
+// GetProductDirectory - Gets the directory which contains the application data folder
+//
+// UNIX   : ~/.mozilla/
+// WIN    : <Application Data folder on user's machine>\Mozilla
+// Mac    : :Documents:Mozilla:
+//----------------------------------------------------------------------------------------
+NS_METHOD nsAppFileLocationProvider::GetProductDirectory(nsILocalFile **aLocalFile)
+{
+    NS_ENSURE_ARG_POINTER(aLocalFile);
+
+    nsresult rv;
+    PRBool exists;
+    nsCOMPtr<nsILocalFile> localDir;
+
+#if defined(XP_MAC)
+    nsCOMPtr<nsIProperties> directoryService =
+             do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
+    if (NS_FAILED(rv)) return rv;
+    OSErr   err;
+    long    response;
+    err = ::Gestalt(gestaltSystemVersion, &response);
+    const char *prop = (!err && response >= 0x00001000) ? NS_MAC_USER_LIB_DIR : NS_MAC_DOCUMENTS_DIR;
+    rv = directoryService->Get(prop, NS_GET_IID(nsILocalFile), getter_AddRefs(localDir));
+    if (NS_FAILED(rv)) return rv;
+#elif defined(XP_MACOSX) && !defined(VBOX_MACOSX_FOLLOWS_UNIX_IO)
+    FSRef fsRef;
+    OSErr err = ::FSFindFolder(kUserDomain, kDomainLibraryFolderType, kCreateFolder, &fsRef);
+    if (err) return NS_ERROR_FAILURE;
+    NS_NewLocalFile(EmptyString(), PR_TRUE, getter_AddRefs(localDir));
+    if (!localDir) return NS_ERROR_FAILURE;
+    nsCOMPtr<nsILocalFileMac> localDirMac(do_QueryInterface(localDir));
+    rv = localDirMac->InitWithFSRef(&fsRef);
+    if (NS_FAILED(rv)) return rv;
+#elif defined(XP_OS2)
+    nsCOMPtr<nsIProperties> directoryService =
+             do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
+    if (NS_FAILED(rv)) return rv;
+    rv = directoryService->Get(NS_OS2_HOME_DIR, NS_GET_IID(nsILocalFile), getter_AddRefs(localDir));
+    if (NS_FAILED(rv)) return rv;
+#elif defined(XP_WIN)
+    nsCOMPtr<nsIProperties> directoryService =
+             do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv);
+    if (NS_FAILED(rv)) return rv;
+    rv = directoryService->Get(NS_WIN_APPDATA_DIR, NS_GET_IID(nsILocalFile), getter_AddRefs(localDir));
+    if (NS_SUCCEEDED(rv))
+        rv = localDir->Exists(&exists);
+    if (NS_FAILED(rv) || !exists)
+    {
+        // On some Win95 machines, NS_WIN_APPDATA_DIR does not exist - revert to NS_WIN_WINDOWS_DIR
+        localDir = nsnull;
+        rv = directoryService->Get(NS_WIN_WINDOWS_DIR, NS_GET_IID(nsILocalFile), getter_AddRefs(localDir));
+    }
+    if (NS_FAILED(rv)) return rv;
+#elif defined(XP_UNIX)
+    rv = NS_NewNativeLocalFile(nsDependentCString(PR_GetEnv("HOME")), PR_TRUE, getter_AddRefs(localDir));
+    if (NS_FAILED(rv)) return rv;
+#elif defined(XP_BEOS)
+    char path[MAXPATHLEN];
+    find_directory(B_USER_SETTINGS_DIRECTORY, 0, 0, path, MAXPATHLEN);
+    // Need enough space to add the trailing backslash
+    int len = strlen(path);
+    if (len > MAXPATHLEN-2)
+        return NS_ERROR_FAILURE;
+    path[len]   = '/';
+    path[len+1] = '\0';
+    rv = NS_NewNativeLocalFile(nsDependentCString(path), PR_TRUE, getter_AddRefs(localDir));
+    if (NS_FAILED(rv)) return rv;
+#else
+#error dont_know_how_to_get_product_dir_on_your_platform
+#endif
+
+    rv = localDir->AppendRelativeNativePath(DEFAULT_PRODUCT_DIR);
+    if (NS_FAILED(rv)) return rv;
+    rv = localDir->Exists(&exists);
+    if (NS_SUCCEEDED(rv) && !exists)
+        rv = localDir->Create(nsIFile::DIRECTORY_TYPE, 0700);
+    if (NS_FAILED(rv)) return rv;
+
+    *aLocalFile = localDir;
+    NS_ADDREF(*aLocalFile);
+
+   return rv;
+}
+
+
+//----------------------------------------------------------------------------------------
+// GetDefaultUserProfileRoot - Gets the directory which contains each user profile dir
+//
+// UNIX   : ~/.mozilla/
+// WIN    : <Application Data folder on user's machine>\Mozilla\Profiles
+// Mac    : :Documents:Mozilla:Profiles:
+//----------------------------------------------------------------------------------------
+NS_METHOD nsAppFileLocationProvider::GetDefaultUserProfileRoot(nsILocalFile **aLocalFile)
+{
+    NS_ENSURE_ARG_POINTER(aLocalFile);
+
+    nsresult rv;
+    nsCOMPtr<nsILocalFile> localDir;
+
+    rv = GetProductDirectory(getter_AddRefs(localDir));
+    if (NS_FAILED(rv)) return rv;
+
+#if defined(XP_MAC) || defined(XP_MACOSX) || defined(XP_OS2) || defined(XP_WIN)
+    // These 3 platforms share this part of the path - do them as one
+    rv = localDir->AppendRelativeNativePath(NS_LITERAL_CSTRING("Profiles"));
+    if (NS_FAILED(rv)) return rv;
+
+    PRBool exists;
+    rv = localDir->Exists(&exists);
+    if (NS_SUCCEEDED(rv) && !exists)
+        rv = localDir->Create(nsIFile::DIRECTORY_TYPE, 0775);
+    if (NS_FAILED(rv)) return rv;
+#endif
+
+    *aLocalFile = localDir;
+    NS_ADDREF(*aLocalFile);
+
+   return rv;
+}
+
+//*****************************************************************************
+// nsAppFileLocationProvider::nsIDirectoryServiceProvider2
+//*****************************************************************************
+
+class nsAppDirectoryEnumerator : public nsISimpleEnumerator
+{
+  public:
+    NS_DECL_ISUPPORTS
+
+    /**
+     * aKeyList is a null-terminated list of properties which are provided by aProvider
+     * They do not need to be publicly defined keys.
+     */
+    nsAppDirectoryEnumerator(nsIDirectoryServiceProvider *aProvider,
+                             const char* aKeyList[]) :
+        mProvider(aProvider),
+        mCurrentKey(aKeyList)
+    {
+    }
+
+    NS_IMETHOD HasMoreElements(PRBool *result)
+    {
+        while (!mNext && *mCurrentKey)
+        {
+            PRBool dontCare;
+            nsCOMPtr<nsIFile> testFile;
+            (void)mProvider->GetFile(*mCurrentKey++, &dontCare, getter_AddRefs(testFile));
+            // Don't return a file which does not exist.
+            PRBool exists;
+            if (testFile && NS_SUCCEEDED(testFile->Exists(&exists)) && exists)
+                mNext = testFile;
+        }
+        *result = mNext != nsnull;
+        return NS_OK;
+    }
+
+    NS_IMETHOD GetNext(nsISupports **result)
+    {
+        NS_ENSURE_ARG_POINTER(result);
+        *result = nsnull;
+
+        PRBool hasMore;
+        HasMoreElements(&hasMore);
+        if (!hasMore)
+            return NS_ERROR_FAILURE;
+
+        *result = mNext;
+        NS_IF_ADDREF(*result);
+        mNext = nsnull;
+
+        return *result ? NS_OK : NS_ERROR_FAILURE;
+    }
+
+    // Virtual destructor since subclass nsPathsDirectoryEnumerator
+    // does not re-implement Release()
+
+    virtual ~nsAppDirectoryEnumerator()
+    {
+    }
+
+  protected:
+    nsIDirectoryServiceProvider *mProvider;
+    const char** mCurrentKey;
+    nsCOMPtr<nsIFile> mNext;
+};
+
+NS_IMPL_ISUPPORTS1(nsAppDirectoryEnumerator, nsISimpleEnumerator)
+
+/* nsPathsDirectoryEnumerator and PATH_SEPARATOR
+ * are not used on MacOS/X. */
+
+#if defined(XP_WIN) || defined(XP_OS2)/* Win32, Win16, and OS/2 */
+#define PATH_SEPARATOR ';'
+#else /*if defined(XP_UNIX) || defined(XP_BEOS)*/
+#define PATH_SEPARATOR ':'
+#endif
+
+class nsPathsDirectoryEnumerator : public nsAppDirectoryEnumerator
+{
+  public:
+    /**
+     * aKeyList is a null-terminated list.
+     * The first element is a path list.
+     * The remainder are properties provided by aProvider.
+     * They do not need to be publicly defined keys.
+     */
+    nsPathsDirectoryEnumerator(nsIDirectoryServiceProvider *aProvider,
+                               const char* aKeyList[]) :
+    nsAppDirectoryEnumerator(aProvider, aKeyList+1),
+    mEndPath(aKeyList[0])
+    {
+    }
+
+    NS_IMETHOD HasMoreElements(PRBool *result)
+    {
+        if (mEndPath)
+            while (!mNext && *mEndPath)
+            {
+                const char *pathVar = mEndPath;
+                do { ++mEndPath; } while (*mEndPath && *mEndPath != PATH_SEPARATOR);
+
+                nsCOMPtr<nsILocalFile> localFile;
+                NS_NewNativeLocalFile(Substring(pathVar, mEndPath),
+                                      PR_TRUE,
+                                      getter_AddRefs(localFile));
+                if (*mEndPath == PATH_SEPARATOR)
+                    ++mEndPath;
+                // Don't return a "file" (directory) which does not exist.
+                PRBool exists;
+                if (localFile &&
+                    NS_SUCCEEDED(localFile->Exists(&exists)) &&
+                    exists)
+                    mNext = localFile;
+            }
+        if (mNext)
+            *result = PR_TRUE;
+        else
+            nsAppDirectoryEnumerator::HasMoreElements(result);
+
+        return NS_OK;
+    }
+
+  protected:
+    const char *mEndPath;
+};
+
+NS_IMETHODIMP
+nsAppFileLocationProvider::GetFiles(const char *prop, nsISimpleEnumerator **_retval)
+{
+    NS_ENSURE_ARG_POINTER(_retval);
+    *_retval = nsnull;
+    nsresult rv = NS_ERROR_FAILURE;
+
+    if (!nsCRT::strcmp(prop, NS_APP_PLUGINS_DIR_LIST))
+    {
+#if (defined(XP_MAC) || defined(XP_MACOSX)) && !defined(VBOX_MACOSX_FOLLOWS_UNIX_IO)
+        static const char* osXKeys[] = { NS_APP_PLUGINS_DIR, NS_MACOSX_USER_PLUGIN_DIR, NS_MACOSX_LOCAL_PLUGIN_DIR, nsnull };
+        static const char* os9Keys[] = { NS_APP_PLUGINS_DIR, NS_MAC_CLASSIC_PLUGIN_DIR, nsnull };
+        static const char** keys;
+
+        if (!keys) {
+            OSErr err;
+            long response;
+            err = ::Gestalt(gestaltSystemVersion, &response);
+            keys = (!err && response >= 0x00001000) ? osXKeys : os9Keys;
+        }
+
+        *_retval = new nsAppDirectoryEnumerator(this, keys);
+#else
+        static const char* keys[] = { nsnull, NS_APP_PLUGINS_DIR, nsnull };
+        if (!keys[0] && !(keys[0] = PR_GetEnv("VBOX_XPCOM_PLUGIN_PATH"))) {
+            static const char nullstr = 0;
+            keys[0] = &nullstr;
+        }
+        *_retval = new nsPathsDirectoryEnumerator(this, keys);
+#endif
+        NS_IF_ADDREF(*_retval);
+        rv = *_retval ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
+    }
+    return rv;
+}