ucb/source/ucp/hierarchy/hierarchyuri.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  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 /**************************************************************************
  22                                 TODO
  23  **************************************************************************
  24
  25  *************************************************************************/
  26
  27 #include "hierarchyuri.hxx"
  28
  29 using namespace hierarchy_ucp;
  30
  31 #define HIERARCHY_URL_SCHEME          "vnd.sun.star.hier"
  32 #define HIERARCHY_URL_SCHEME_LENGTH   17
  33 #define DEFAULT_DATA_SOURCE_SERVICE \
  34                     "com.sun.star.ucb.DefaultHierarchyDataSource"
  35
  36
  37 // HierarchyUri Implementation.
  38
  39
  40 void HierarchyUri::init() const
  41 {
  42     // Already inited?
  43     if ( m_aUri.isEmpty() || !m_aPath.isEmpty() )
  44         return;
  45
  46     // Note: Maybe it's a re-init, setUri only resets m_aPath!
  47     m_aService.clear();
  48     m_aParentUri.clear();
  49
  50     // URI must match at least: <scheme>:
  51     if ( m_aUri.getLength() < HIERARCHY_URL_SCHEME_LENGTH + 1 )
  52     {
  53         // error, but remember that we did an init().
  54         m_aPath = "/";
  55         return;
  56     }
  57
  58     // Scheme is case insensitive.
  59     OUString aScheme
  60         = m_aUri.copy( 0, HIERARCHY_URL_SCHEME_LENGTH ).toAsciiLowerCase();
  61     if ( aScheme == HIERARCHY_URL_SCHEME )
  62     {
  63         m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
  64
  65         sal_Int32 nPos = 0;
  66
  67         // If the URI has no service specifier, insert default service.
  68         // This is for backward compatibility and for convenience.
  69
  70         if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 1 )
  71         {
  72             // root folder URI without path and service specifier.
  73             m_aUri += "//" DEFAULT_DATA_SOURCE_SERVICE "/";
  74             m_aService = DEFAULT_DATA_SOURCE_SERVICE ;
  75
  76             nPos = m_aUri.getLength() - 1;
  77         }
  78         else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 2 )
  79                   &&
  80                   ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 1 ] == '/' ) )
  81         {
  82             // root folder URI without service specifier.
  83             m_aUri += "/" DEFAULT_DATA_SOURCE_SERVICE "/";
  84             m_aService = DEFAULT_DATA_SOURCE_SERVICE;
  85
  86             nPos = m_aUri.getLength() - 1;
  87         }
  88         else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME_LENGTH + 2 )
  89                   &&
  90                   ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 2 ] != '/' ) )
  91         {
  92             // other (no root folder) URI without service specifier.
  93             m_aUri = m_aUri.replaceAt(
  94                         HIERARCHY_URL_SCHEME_LENGTH + 2,
  95                         0,
  96                         "/" DEFAULT_DATA_SOURCE_SERVICE "/" );
  97             m_aService = DEFAULT_DATA_SOURCE_SERVICE;
  98
  99             nPos
 100                 = HIERARCHY_URL_SCHEME_LENGTH + 3 + m_aService.getLength();
 101         }
 102         else
 103         {
 104             // URI with service specifier.
 105             sal_Int32 nStart = HIERARCHY_URL_SCHEME_LENGTH + 3;
 106
 107             // Here: - m_aUri has at least the form "<scheme>://"
 108             //       - nStart points to char after <scheme>:
 109
 110             // Only <scheme>:// ?
 111             if ( nStart == m_aUri.getLength() )
 112             {
 113                 // error, but remember that we did an init().
 114                 m_aPath = "/";
 115                 return;
 116             }
 117
 118             // Empty path segments?
 119             if ( m_aUri.indexOf("//", nStart) != -1 )
 120             {
 121                 // error, but remember that we did an init().
 122                 m_aPath = "/";
 123                 return;
 124             }
 125
 126             sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
 127
 128             // Only <scheme>:/// ?
 129             if ( nEnd == nStart )
 130             {
 131                 // error, but remember that we did an init().
 132                 m_aPath = "/";
 133                 return;
 134             }
 135
 136             if ( nEnd == -1 )
 137             {
 138                 // Trailing slash missing.
 139                 nEnd = m_aUri.getLength();
 140                 m_aUri += "/";
 141             }
 142
 143             m_aService = m_aUri.copy( nStart, nEnd - nStart );
 144
 145             nPos = nEnd;
 146         }
 147
 148         // Here: - m_aUri has at least the form "<scheme>://<service>/"
 149         //       - m_aService was set
 150         //       - m_aPath, m_aParentPath, m_aName not yet set
 151         //       - nPos points to slash after service specifier
 152
 153         // Remove trailing slash, if not a root folder URI.
 154         sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
 155         if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
 156             m_aUri = m_aUri.copy( 0, nEnd );
 157
 158         // Path (includes leading slash)
 159         m_aPath = m_aUri.copy( nPos );
 160
 161         // parent URI + name
 162         sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
 163         if ( ( nLastSlash != -1 ) &&
 164              ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
 165         {
 166             m_aParentUri = m_aUri.copy( 0, nLastSlash );
 167         }
 168
 169         // success
 170         m_bValid = true;
 171     }
 172     else
 173     {
 174         // error, but remember that we did an init().
 175         m_aPath = "/";
 176     }
 177 }
 178
 179 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */