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       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                 :        830 :     class LinkResolver
      39                 :            :     {
      40                 :            :     public:
      41                 :            :         osl::FileStatus m_aStatus;
      42                 :            : 
      43                 :        830 :         LinkResolver(sal_uInt32 nMask)
      44                 :            :             : m_aStatus(nMask |
      45                 :            :                         osl_FileStatus_Mask_FileURL |
      46                 :            :                         osl_FileStatus_Mask_Type |
      47                 :        830 :                         osl_FileStatus_Mask_LinkTargetURL)
      48                 :            :         {
      49                 :        830 :         }
      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                 :        830 :         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                 :        830 :             osl::DirectoryItem item;
      68                 :        830 :             rtl::OUString sURL(rURL);
      69 [ +  - ][ +  + ]:        830 :             while ((eReturn = osl::DirectoryItem::get(sURL, item))
      70                 :            :                   == osl::File::E_None)
      71                 :            :             {
      72         [ -  + ]:        794 :                 if (--nDepth == 0)
      73                 :            :                 {
      74                 :          0 :                     eReturn = osl::FileBase::E_MULTIHOP;
      75                 :          0 :                     break;
      76                 :            :                 }
      77         [ +  - ]:        794 :                 eReturn = item.getFileStatus(m_aStatus);
      78         [ -  + ]:        794 :                 if (eReturn != osl::File::E_None)
      79                 :          0 :                     break;
      80 [ +  - ][ +  - ]:        794 :                 if (m_aStatus.getFileType() != osl::FileStatus::Link)
      81                 :            :                 {
      82                 :        794 :                     eReturn = osl::FileBase::E_None;
      83                 :        794 :                     break;
      84                 :            :                 }
      85         [ #  # ]:          0 :                 sURL = m_aStatus.getLinkTargetURL();
      86                 :            :             }
      87                 :            : 
      88         [ +  - ]:        830 :             return eReturn;
      89                 :            :         }
      90                 :            :     };
      91                 :            : }
      92                 :            : 
      93                 :            : #endif
      94                 :            : 
      95                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */