ucb/source/ucp/hierarchy/hierarchyuri.cxx

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  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_ucb.hxx"
  33
  34 /**************************************************************************
  35                                 TODO
  36  **************************************************************************
  37
  38  *************************************************************************/
  39
  40 #include "rtl/ustrbuf.hxx"
  41 #include "osl/diagnose.h"
  42
  43 #include "hierarchyuri.hxx"
  44
  45 using namespace hierarchy_ucp;
  46
  47 //=========================================================================
  48
  49 #define DEFAULT_DATA_SOURCE_SERVICE \
  50                     "com.sun.star.ucb.DefaultHierarchyDataSource"
  51
  52 //=========================================================================
  53 //=========================================================================
  54 //
  55 // HierarchyUri Implementation.
  56 //
  57 //=========================================================================
  58 //=========================================================================
  59
  60 void HierarchyUri::init() const
  61 {
  62     // Already inited?
  63     if ( m_aUri.getLength() && !m_aPath.getLength() )
  64     {
  65         // Note: Maybe it's a re-init, setUri only resets m_aPath!
  66         m_aService = m_aParentUri = m_aName = rtl::OUString();
  67
  68         // URI must match at least: <sheme>:
  69         if ( ( m_aUri.getLength() < HIERARCHY_URL_SCHEME_LENGTH + 1 ) )
  70         {
  71             // error, but remember that we did a init().
  72             m_aPath = rtl::OUString::createFromAscii( "/" );
  73             return;
  74         }
  75
  76         // Scheme is case insensitive.
  77         rtl::OUString aScheme
  78             = m_aUri.copy( 0, HIERARCHY_URL_SCHEME_LENGTH ).toAsciiLowerCase();
  79         if ( aScheme.equalsAsciiL(
  80                 RTL_CONSTASCII_STRINGPARAM( HIERARCHY_URL_SCHEME ) ) )
  81         {
  82             m_aUri = m_aUri.replaceAt( 0, aScheme.getLength(), aScheme );
  83
  84             sal_Int32 nPos = 0;
  85
  86             // If the URI has no service specifier, insert default service.
  87             // This is for backward compatibility and for convenience.
  88
  89             if ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 1 )
  90             {
  91                 // root folder URI without path and service specifier.
  92                 m_aUri += rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
  93                                 "//" DEFAULT_DATA_SOURCE_SERVICE "/" ) );
  94                 m_aService
  95                     = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
  96                                             DEFAULT_DATA_SOURCE_SERVICE ) );
  97
  98                 nPos = m_aUri.getLength() - 1;
  99             }
 100             else if ( ( m_aUri.getLength() == HIERARCHY_URL_SCHEME_LENGTH + 2 )
 101                       &&
 102                       ( m_aUri.getStr()[ HIERARCHY_URL_SCHEME_LENGTH + 1 ]
 103                                                     == sal_Unicode( '/' ) ) )
 104             {
 105                 // root folder URI without service specifier.
 106                 m_aUri += rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
 107                                 "/" DEFAULT_DATA_SOURCE_SERVICE "/" ) );
 108                 m_aService
 109                     = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
 110                                             DEFAULT_DATA_SOURCE_SERVICE ) );
 111
 112                 nPos = m_aUri.getLength() - 1;
 113             }
 114             else if ( ( m_aUri.getLength() > HIERARCHY_URL_SCHEME_LENGTH + 2 )
 115                       &&
 116                       ( m_aUri.getStr()[ HIERARCHY_URL_SCHEME_LENGTH + 2 ]
 117                                                     != sal_Unicode( '/' ) ) )
 118             {
 119                 // other (no root folder) URI without service specifier.
 120                 m_aUri = m_aUri.replaceAt(
 121                             HIERARCHY_URL_SCHEME_LENGTH + 2,
 122                             0,
 123                             rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
 124                                 "/" DEFAULT_DATA_SOURCE_SERVICE "/" ) ) );
 125                 m_aService
 126                     = rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(
 127                                             DEFAULT_DATA_SOURCE_SERVICE ) );
 128
 129                 nPos
 130                     = HIERARCHY_URL_SCHEME_LENGTH + 3 + m_aService.getLength();
 131             }
 132             else
 133             {
 134                 // URI with service specifier.
 135                 sal_Int32 nStart = HIERARCHY_URL_SCHEME_LENGTH + 3;
 136
 137                 // Here: - m_aUri has at least the form "<scheme>://"
 138                 //       - nStart points to char after <scheme>://
 139
 140                 // Only <scheme>:// ?
 141                 if ( nStart == m_aUri.getLength() )
 142                 {
 143                     // error, but remember that we did a init().
 144                     m_aPath = rtl::OUString::createFromAscii( "/" );
 145                     return;
 146                 }
 147
 148                 // Empty path segments?
 149                 if ( m_aUri.indexOf(
 150                         rtl::OUString::createFromAscii( "//" ),
 151                         nStart ) != -1 )
 152                 {
 153                     // error, but remember that we did a init().
 154                     m_aPath = rtl::OUString::createFromAscii( "/" );
 155                     return;
 156                 }
 157
 158                 sal_Int32 nEnd = m_aUri.indexOf( '/', nStart );
 159
 160                 // Only <scheme>:/// ?
 161                 if ( nEnd == nStart )
 162                 {
 163                     // error, but remember that we did a init().
 164                     m_aPath = rtl::OUString::createFromAscii( "/" );
 165                     return;
 166                 }
 167
 168                 if ( nEnd == -1 )
 169                 {
 170                     // Trailing slash missing.
 171                     nEnd = m_aUri.getLength();
 172                     m_aUri += rtl::OUString::createFromAscii( "/" );
 173                 }
 174
 175                 m_aService = m_aUri.copy( nStart, nEnd - nStart );
 176
 177                 nPos = nEnd;
 178             }
 179
 180             // Here: - m_aUri has at least the form "<scheme>://<service>/"
 181             //       - m_aService was set
 182             //       - m_aPath, m_aParentPath, m_aName not yet set
 183             //       - nPos points to slash after service specifier
 184
 185             // Remove trailing slash, if not a root folder URI.
 186             sal_Int32 nEnd = m_aUri.lastIndexOf( '/' );
 187             if ( ( nEnd > nPos ) && ( nEnd == ( m_aUri.getLength() - 1 ) ) )
 188                 m_aUri = m_aUri.copy( 0, nEnd );
 189
 190             // Path (includes leading slash)
 191             m_aPath = m_aUri.copy( nPos );
 192
 193             // parent URI + name
 194             sal_Int32 nLastSlash = m_aUri.lastIndexOf( '/' );
 195             if ( ( nLastSlash != -1 ) &&
 196                  ( nLastSlash != m_aUri.getLength() - 1 ) ) // root
 197             {
 198                 m_aParentUri = m_aUri.copy( 0, nLastSlash );
 199                 m_aName      = m_aUri.copy( nLastSlash + 1 );
 200             }
 201
 202             // success
 203             m_bValid = true;
 204         }
 205         else
 206         {
 207             // error, but remember that we did a init().
 208             m_aPath = rtl::OUString::createFromAscii( "/" );
 209         }
 210     }
 211 }
 212