Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * Version: MPL 1.1 / GPLv3+ / LGPLv3+
       4             :  *
       5             :  * The contents of this file are subject to the Mozilla Public License Version
       6             :  * 1.1 (the "License"); you may not use this file except in compliance with
       7             :  * the License or as specified alternatively below. You may obtain a copy of
       8             :  * the License at http://www.mozilla.org/MPL/
       9             :  *
      10             :  * Software distributed under the License is distributed on an "AS IS" basis,
      11             :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12             :  * for the specific language governing rights and limitations under the
      13             :  * License.
      14             :  *
      15             :  * Major Contributor(s):
      16             :  * Copyright (C) 2011 Red Hat, Inc., Caolán McNamara <caolanm@redhat.com>
      17             :  *  (initial developer)
      18             :  *
      19             :  * All Rights Reserved.
      20             :  *
      21             :  * For minor contributions see the git repository.
      22             :  *
      23             :  * Alternatively, the contents of this file may be used under the terms of
      24             :  * either the GNU General Public License Version 3 or later (the "GPLv3+"), or
      25             :  * the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
      26             :  * in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
      27             :  * instead of those above.
      28             :  */
      29             : 
      30             : #ifndef _SALHELPER_LINKHELPER_HXX
      31             : #define _SALHELPER_LINKHELPER_HXX
      32             : 
      33             : #include <rtl/ustring.hxx>
      34             : #include <osl/file.hxx>
      35             : 
      36             : namespace salhelper
      37             : {
      38          66 :     class LinkResolver
      39             :     {
      40             :     public:
      41             :         osl::FileStatus m_aStatus;
      42             : 
      43          66 :         LinkResolver(sal_uInt32 nMask)
      44             :             : m_aStatus(nMask |
      45             :                         osl_FileStatus_Mask_FileURL |
      46             :                         osl_FileStatus_Mask_Type |
      47          66 :                         osl_FileStatus_Mask_LinkTargetURL)
      48             :         {
      49          66 :         }
      50             : 
      51             :         /** Resolve a file url if its a symbolic link, to a maximum depth of
      52             :          *  nDepth and fill in m_aStatus with the requested ctor flags
      53             :          *
      54             :          *  @return osl::FileBase::E_None on success
      55             :          *
      56             :          *  @see DirectoryItem::getFileStatus
      57             :          */
      58          66 :         osl::FileBase::RC fetchFileStatus(const rtl::OUString &rURL,
      59             :             int nDepth = 128)
      60             :         {
      61             :             //In an ideal world this wouldn't be inline, but I want to use this
      62             :             //in jvmfwk hence salhelper, but salhelper is .map controlled and
      63             :             //getting all the mangled names right is a misery, moving it over
      64             :             //to visibility markup would drop per-symbol versioning
      65             :             osl::FileBase::RC eReturn;
      66             : 
      67          66 :             osl::DirectoryItem item;
      68          66 :             rtl::OUString sURL(rURL);
      69         132 :             while ((eReturn = osl::DirectoryItem::get(sURL, item))
      70             :                   == osl::File::E_None)
      71             :             {
      72          66 :                 if (--nDepth == 0)
      73             :                 {
      74           0 :                     eReturn = osl::FileBase::E_MULTIHOP;
      75           0 :                     break;
      76             :                 }
      77          66 :                 eReturn = item.getFileStatus(m_aStatus);
      78          66 :                 if (eReturn != osl::File::E_None)
      79           0 :                     break;
      80          66 :                 if (m_aStatus.getFileType() != osl::FileStatus::Link)
      81             :                 {
      82          66 :                     eReturn = osl::FileBase::E_None;
      83          66 :                     break;
      84             :                 }
      85           0 :                 sURL = m_aStatus.getLinkTargetURL();
      86             :             }
      87             : 
      88          66 :             return eReturn;
      89             :         }
      90             :     };
      91             : }
      92             : 
      93             : #endif
      94             : 
      95             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */