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 <o3tl/char16_t2wchar_t.hxx>
  14 #define WIN32_LEAN_AND_MEAN
  15 #include <Windows.h>
  16 #include <davclnt.h>
  17 #endif
  18
  19 namespace
  20 {
  21 #if defined _WIN32
  22 OUString UNCToDavURL(LPCWSTR sUNC)
  23 {
  24     DWORD nSize = 1024;
  25     auto bufURL(std::make_unique<wchar_t[]>(nSize));
  26     DWORD nResult = DavGetHTTPFromUNCPath(sUNC, bufURL.get(), &nSize);
  27     if (nResult == ERROR_INSUFFICIENT_BUFFER)
  28     {
  29         bufURL = std::make_unique<wchar_t[]>(nSize);
  30         nResult = DavGetHTTPFromUNCPath(sUNC, bufURL.get(), &nSize);
  31     }
  32     return nResult == ERROR_SUCCESS ? o3tl::toU(bufURL.get()) : OUString();
  33 }
  34 #endif
  35 }
  36
  37 namespace tools
  38 {
  39 bool IsMappedWebDAVPath([[maybe_unused]] const OUString& rURL, [[maybe_unused]] OUString* pRealURL)
  40 {
  41 #if defined _WIN32
  42     if (rURL.startsWithIgnoreAsciiCase("file:"))
  43     {
  44         OUString aSystemPath;
  45         if (osl::FileBase::getSystemPathFromFileURL(rURL, aSystemPath) == osl::FileBase::E_None)
  46         {
  47             DWORD nSize = MAX_PATH;
  48             auto bufUNC(std::make_unique<char[]>(nSize));
  49             DWORD nResult = WNetGetUniversalNameW(o3tl::toW(aSystemPath.getStr()),
  50                                                   UNIVERSAL_NAME_INFO_LEVEL, bufUNC.get(), &nSize);
  51             if (nResult == ERROR_MORE_DATA)
  52             {
  53                 bufUNC = std::make_unique<char[]>(nSize);
  54                 nResult = WNetGetUniversalNameW(o3tl::toW(aSystemPath.getStr()),
  55                                                 UNIVERSAL_NAME_INFO_LEVEL, bufUNC.get(), &nSize);
  56             }
  57             if (nResult == NO_ERROR || nResult == ERROR_BAD_DEVICE)
  58             {
  59                 NETRESOURCEW aReq{};
  60                 if (nResult == ERROR_BAD_DEVICE) // The path could already be an UNC
  61                     aReq.lpRemoteName = const_cast<LPWSTR>(o3tl::toW(aSystemPath.getStr()));
  62                 else
  63                 {
  64                     auto pInfo = reinterpret_cast<LPUNIVERSAL_NAME_INFOW>(bufUNC.get());
  65                     aReq.lpRemoteName = pInfo->lpUniversalName;
  66                 }
  67                 nSize = 1024;
  68                 auto bufInfo(std::make_unique<char[]>(nSize));
  69                 LPWSTR pSystem = nullptr;
  70                 nResult = WNetGetResourceInformationW(&aReq, bufInfo.get(), &nSize, &pSystem);
  71                 if (nResult == ERROR_MORE_DATA)
  72                 {
  73                     bufInfo = std::make_unique<char[]>(nSize);
  74                     nResult = WNetGetResourceInformationW(&aReq, bufInfo.get(), &nSize, &pSystem);
  75                 }
  76                 if (nResult == NO_ERROR)
  77                 {
  78                     LPNETRESOURCEW pInfo = reinterpret_cast<LPNETRESOURCEW>(bufInfo.get());
  79                     if (wcscmp(pInfo->lpProvider, L"Web Client Network") == 0)
  80                     {
  81                         if (pRealURL)
  82                             *pRealURL = UNCToDavURL(aReq.lpRemoteName);
  83                         return true;
  84                     }
  85                 }
  86             }
  87         }
  88     }
  89 #endif
  90     return false;
  91 }
  92
  93 } // namespace tools
  94
  95 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */