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 "rtl/ustrbuf.hxx"
  28 #include "osl/diagnose.h"
  29
  30 #include "hierarchyuri.hxx"
  31
  32 using namespace hierarchy_ucp;
  33
  34
  35
  36 #define DEFAULT_DATA_SOURCE_SERVICE \
  37                     "com.sun.star.ucb.DefaultHierarchyDataSource"
  38
  39
  40
  41
  42 // HierarchyUri Implementation.
  43
  44
  45
  46
  47 void HierarchyUri::init() const
  48 {
  49     // Already inited?
  50     if ( !m_aUri.isEmpty() && m_aPath.isEmpty() )
  51     {
  52         // Note: Maybe it's a re-init, setUri only resets m_aPath!
  53         m_aService.clear();
  54         m_aParentUri.clear();
  55         m_aName.clear();
  56
  57         // URI must match at least: <sheme>:
  58         if ( ( m_aUri.getLength() < HIERARCHY_URL_SCHEME_LENGTH + 1 ) )
  59         {
  60             // error, but remember that we did a init().
  61             m_aPath = "/";
  62             return;
  63         }
  64
  65         // Scheme is case insensitive.
  66         OUString aScheme
  67             = m_aUri.copy( 0, HIERARCHY_URL_SCHEME_LENGTH ).toAsciiLowerCase();
  68         if ( aScheme == HIERARCHY_URL_SCHEME )
  69         {
  70             m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
  71
  72             sal_Int32 nPos = 0;
  73
  74             // If the URI has no service specifier, insert default service.
  75             // This is for backward compatibility and for convenience.
  76
  77             if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 1 )
  78             {
  79                 // root folder URI without path and service specifier.
  80                 m_aUri += "//" DEFAULT_DATA_SOURCE_SERVICE "/";
  81                 m_aService = DEFAULT_DATA_SOURCE_SERVICE ;
  82
  83                 nPos = m_aUri.getLength() - 1;
  84             }
  85             else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 2 )
  86                       &&
  87                       ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 1 ] == '/' ) )
  88             {
  89                 // root folder URI without service specifier.
  90                 m_aUri += "/" DEFAULT_DATA_SOURCE_SERVICE "/";
  91                 m_aService = DEFAULT_DATA_SOURCE_SERVICE;
  92
  93                 nPos = m_aUri.getLength() - 1;
  94             }
  95             else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME_LENGTH + 2 )
  96                       &&
  97                       ( m_aUri[ HIERARCHY_URL_SCHEME_LENGTH + 2 ] != '/' ) )
  98             {
  99                 // other (no root folder) URI without service specifier.
 100                 m_aUri = m_aUri.replaceAt(
 101                             HIERARCHY_URL_SCHEME_LENGTH + 2,
 102                             0,
 103                             OUString( "/" DEFAULT_DATA_SOURCE_SERVICE "/"  ) );
 104                 m_aService = DEFAULT_DATA_SOURCE_SERVICE;
 105
 106                 nPos
 107                     = HIERARCHY_URL_SCHEME_LENGTH + 3 + m_aService.getLength();
 108             }
 109             else
 110             {
 111                 // URI with service specifier.
 112                 sal_Int32 nStart = HIERARCHY_URL_SCHEME_LENGTH + 3;
 113
 114                 // Here: - m_aUri has at least the form "<scheme>://"
 115                 //       - nStart points to char after <scheme>:
 116
 117                 // Only <scheme>:// ?
 118                 if ( nStart == m_aUri.getLength() )
 119                 {
 120                     // error, but remember that we did a init().
 121                     m_aPath = "/";
 122                     return;
 123                 }
 124
 125                 // Empty path segments?
 126                 if ( m_aUri.indexOf(
 127                         OUString("//"),
 128                         nStart ) != -1 )
 129                 {
 130                     // error, but remember that we did a init().
 131                     m_aPath = "/";
 132                     return;
 133                 }
 134
 135                 sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
 136
 137                 // Only <scheme>:/// ?
 138                 if ( nEnd == nStart )
 139                 {
 140                     // error, but remember that we did a init().
 141                     m_aPath = "/";
 142                     return;
 143                 }
 144
 145                 if ( nEnd == -1 )
 146                 {
 147                     // Trailing slash missing.
 148                     nEnd = m_aUri.getLength();
 149                     m_aUri += "/";
 150                 }
 151
 152                 m_aService = m_aUri.copy( nStart, nEnd - nStart );
 153
 154                 nPos = nEnd;
 155             }
 156
 157             // Here: - m_aUri has at least the form "<scheme>://<service>/"
 158             //       - m_aService was set
 159             //       - m_aPath, m_aParentPath, m_aName not yet set
 160             //       - nPos points to slash after service specifier
 161
 162             // Remove trailing slash, if not a root folder URI.
 163             sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
 164             if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
 165                 m_aUri = m_aUri.copy( 0, nEnd );
 166
 167             // Path (includes leading slash)
 168             m_aPath = m_aUri.copy( nPos );
 169
 170             // parent URI + name
 171             sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
 172             if ( ( nLastSlash != -1 ) &&
 173                  ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
 174             {
 175                 m_aParentUri = m_aUri.copy( 0, nLastSlash );
 176                 m_aName      = m_aUri.copy( nLastSlash + 1 );
 177             }
 178
 179             // success
 180             m_bValid = true;
 181         }
 182         else
 183         {
 184             // error, but remember that we did a init().
 185             m_aPath = "/";
 186         }
 187     }
 188 }
 189
 190 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */