ciderpress/app/NewFolderDialog.cpp

/*
 * CiderPress
 * Copyright (C) 2007 by faddenSoft, LLC.  All Rights Reserved.
 * See the file LICENSE for distribution terms.
 */
#include "stdafx.h"
#include "NewFolderDialog.h"

BEGIN_MESSAGE_MAP(NewFolderDialog, CDialog)
    ON_WM_HELPINFO()
END_MESSAGE_MAP()

void NewFolderDialog::DoDataExchange(CDataExchange* pDX)
{
    /*
     * It is very important to keep '\\' out of the folder path, because it allows
     * for all sorts of behavior (like "..\foo" or "D:\ack") that the caller
     * might not be expecting.  For example, if it's displaying a tree, it
     * might assume that the folder goes under the currently selected node.
     *
     * Under WinNT, '/' is regarded as equivalent to '\', so we have to block
     * that as well.
     *
     * Other characters (':') are also dangerous, but so long as we start with
     * a valid path, Windows will prevent them from being used where they are
     * inappropriate.
     */

    if (!pDX->m_bSaveAndValidate)
        DDX_Text(pDX, IDC_NEWFOLDER_CURDIR, fCurrentFolder);

    DDX_Text(pDX, IDC_NEWFOLDER_NAME, fNewFolder);

    /* validate the new folder by creating it */
    if (pDX->m_bSaveAndValidate) {
        if (fNewFolder.IsEmpty()) {
            MessageBox(L"No name entered, not creating new folder.",
                L"CiderPress", MB_OK);
            // fall out of DoModal with fFolderCreated==false
        } else if (fNewFolder.Find('\\') >= 0 ||
                   fNewFolder.Find('/') >= 0)
        {
            MessageBox(L"Folder names may not contain '/' or '\\'.",
                L"CiderPress", MB_OK);
            pDX->Fail();
        } else {
            fNewFullPath = fCurrentFolder;
            if (fNewFullPath.Right(1) != "\\")
                fNewFullPath += "\\";
            fNewFullPath += fNewFolder;
            LOGI("CREATING '%ls'", (LPCWSTR) fNewFullPath);
            if (!::CreateDirectory(fNewFullPath, NULL)) {
                /* show the sometimes-bizarre Windows error string */
                CString msg, errStr, failed;
                DWORD dwerr = ::GetLastError();
                GetWin32ErrorString(dwerr, &errStr);
                msg.Format(L"Unable to create folder '%ls': %ls",
                    (LPCWSTR) fNewFolder, (LPCWSTR) errStr);
                failed.LoadString(IDS_FAILED);
                MessageBox(msg, failed, MB_OK | MB_ICONERROR);
                pDX->Fail();
            } else {
                /* success! */
                fFolderCreated = true;
            }
        }
    }
}