tools/source/fsys/fileutil.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <tools/fileutil.hxx>
  11 #if defined _WIN32
  12 #include <osl/file.hxx>
  13 #include <rtl/uri.hxx>
  14 #include <o3tl/char16_t2wchar_t.hxx>
  15 #define WIN32_LEAN_AND_MEAN
  16 #include <Windows.h>
  17 #include <davclnt.h>
  18 #endif
  19
  20 namespace
  21 {
  22 #if defined _WIN32
  23 OUString UNCToDavURL(LPCWSTR sUNC)
  24 {
  25     DWORD nSize = 1024;
  26     auto bufURL(std::make_unique<wchar_t[]>(nSize));
  27     DWORD nResult = DavGetHTTPFromUNCPath(sUNC, bufURL.get(), &nSize);
  28     if (nResult == ERROR_INSUFFICIENT_BUFFER)
  29     {
  30         bufURL = std::make_unique<wchar_t[]>(nSize);
  31         nResult = DavGetHTTPFromUNCPath(sUNC, bufURL.get(), &nSize);
  32     }
  33     // looks like on different Windowses this may or may not be URL encoded?
  34     return nResult == ERROR_SUCCESS
  35                ? ::rtl::Uri::encode(OUString(o3tl::toU(bufURL.get())), rtl_UriCharClassUric,
  36                                     rtl_UriEncodeKeepEscapes, RTL_TEXTENCODING_UTF8)
  37                : OUString();
  38 }
  39 #endif
  40 }
  41
  42 namespace tools
  43 {
  44 bool IsMappedWebDAVPath([[maybe_unused]] const OUString& rURL, [[maybe_unused]] OUString* pRealURL)
  45 {
  46 #if defined _WIN32
  47     if (rURL.startsWithIgnoreAsciiCase("file:"))
  48     {
  49         OUString aSystemPath;
  50         if (osl::FileBase::getSystemPathFromFileURL(rURL, aSystemPath) == osl::FileBase::E_None)
  51         {
  52             DWORD nSize = MAX_PATH;
  53             auto bufUNC(std::make_unique<char[]>(nSize));
  54             DWORD nResult = WNetGetUniversalNameW(o3tl::toW(aSystemPath.getStr()),
  55                                                   UNIVERSAL_NAME_INFO_LEVEL, bufUNC.get(), &nSize);
  56             if (nResult == ERROR_MORE_DATA)
  57             {
  58                 bufUNC = std::make_unique<char[]>(nSize);
  59                 nResult = WNetGetUniversalNameW(o3tl::toW(aSystemPath.getStr()),
  60                                                 UNIVERSAL_NAME_INFO_LEVEL, bufUNC.get(), &nSize);
  61             }
  62             if (nResult == NO_ERROR || nResult == ERROR_BAD_DEVICE)
  63             {
  64                 NETRESOURCEW aReq{};
  65                 if (nResult == ERROR_BAD_DEVICE) // The path could already be an UNC
  66                     aReq.lpRemoteName = const_cast<LPWSTR>(o3tl::toW(aSystemPath.getStr()));
  67                 else
  68                 {
  69                     auto pInfo = reinterpret_cast<LPUNIVERSAL_NAME_INFOW>(bufUNC.get());
  70                     aReq.lpRemoteName = pInfo->lpUniversalName;
  71                 }
  72                 nSize = 1024;
  73                 auto bufInfo(std::make_unique<char[]>(nSize));
  74                 LPWSTR pSystem = nullptr;
  75                 nResult = WNetGetResourceInformationW(&aReq, bufInfo.get(), &nSize, &pSystem);
  76                 if (nResult == ERROR_MORE_DATA)
  77                 {
  78                     bufInfo = std::make_unique<char[]>(nSize);
  79                     nResult = WNetGetResourceInformationW(&aReq, bufInfo.get(), &nSize, &pSystem);
  80                 }
  81                 if (nResult == NO_ERROR)
  82                 {
  83                     LPNETRESOURCEW pInfo = reinterpret_cast<LPNETRESOURCEW>(bufInfo.get());
  84                     if (wcscmp(pInfo->lpProvider, L"Web Client Network") == 0)
  85                     {
  86                         if (pRealURL)
  87                             *pRealURL = UNCToDavURL(aReq.lpRemoteName);
  88                         return true;
  89                     }
  90                 }
  91             }
  92         }
  93     }
  94 #endif
  95     return false;
  96 }
  97
  98 } // namespace tools
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */