s3-mdssvc: Spotlight attribute mappings

Add mappings for metadata attribute between Spotlight and NEPOMUK for
use with Tracker.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

diff --git a/source3/rpc_server/mdssvc/sparql_mapping.c b/source3/rpc_server/mdssvc/sparql_mapping.c
new file mode 100644 (file)
index 0000000..a3baf09
--- /dev/null
+++ b/source3/rpc_server/mdssvc/sparql_mapping.c
@@ -0,0 +1,373 @@
+/*
+   Unix SMB/CIFS implementation.
+   Main metadata server / Spotlight routines
+
+   Copyright (C) Ralph Boehme                  2012-2014
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "replace.h"
+#include "sparql_mapping.h"
+
+const struct sl_attr_map *sl_attr_map_by_spotlight(const char *sl_attr)
+{
+       static const struct sl_attr_map spotlight_sparql_attr_map[] = {
+               {
+                       .spotlight_attr = "*",
+                       .type = ssmt_fts,
+                       .sparql_attr = "fts:match",
+               },
+
+               /* Filesystem metadata */
+               {
+                       .spotlight_attr = "kMDItemFSLabel",
+                       .type = ssmt_num,
+                       .sparql_attr = NULL,
+               },
+               {
+                       .spotlight_attr = "kMDItemDisplayName",
+                       .type = ssmt_str,
+                       .sparql_attr = "nfo:fileName",
+               },
+               {
+                       .spotlight_attr = "kMDItemFSName",
+                       .type = ssmt_str,
+                       .sparql_attr = "nfo:fileName",
+               },
+               {
+                       .spotlight_attr = "kMDItemFSContentChangeDate",
+                       .type = ssmt_date,
+                       .sparql_attr = "nfo:fileLastModified",
+               },
+               {
+                       .spotlight_attr = "kMDItemLastUsedDate",
+                       .type = ssmt_date,
+                       .sparql_attr = "nfo:fileLastAccessed",
+               },
+
+               /* Common metadata */
+               {
+                       .spotlight_attr = "kMDItemTextContent",
+                       .type = ssmt_fts,
+                       .sparql_attr = "fts:match",
+               },
+               {
+                       .spotlight_attr = "kMDItemContentCreationDate",
+                       .type = ssmt_date,
+                       .sparql_attr = "nie:contentCreated",
+               },
+               {
+                       .spotlight_attr = "kMDItemContentModificationDate",
+                       .type = ssmt_date,
+                       .sparql_attr = "nfo:fileLastModified",
+               },
+               {
+                       .spotlight_attr = "kMDItemAttributeChangeDate",
+                       .type = ssmt_date,
+                       .sparql_attr = "nfo:fileLastModified",
+               },
+               {
+                       .spotlight_attr = "kMDItemAuthors",
+                       .type = ssmt_str,
+                       .sparql_attr = "dc:creator",
+               },
+               {
+                       .spotlight_attr = "kMDItemCopyright",
+                       .type = ssmt_str,
+                       .sparql_attr = "nie:copyright",
+               },
+               {
+                       .spotlight_attr = "kMDItemCountry",
+                       .type = ssmt_str,
+                       .sparql_attr = "nco:country",
+               },
+               {
+                       .spotlight_attr = "kMDItemCreator",
+                       .type = ssmt_str,
+                       .sparql_attr = "dc:creator",
+               },
+               {
+                       .spotlight_attr = "kMDItemDurationSeconds",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:duration",
+               },
+               {
+                       .spotlight_attr = "kMDItemNumberOfPages",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:pageCount",
+               },
+               {
+                       .spotlight_attr = "kMDItemTitle",
+                       .type = ssmt_str,
+                       .sparql_attr = "nie:title",
+               },
+               {
+                       .spotlight_attr = "kMDItemCity",
+                       .type = ssmt_str,
+                       .sparql_attr = "nco:locality",
+               },
+               {
+                       .spotlight_attr = "kMDItemCoverage",
+                       .type = ssmt_str,
+                       .sparql_attr = "nco:locality",
+               },
+               {
+                       .spotlight_attr = "_kMDItemGroupId",
+                       .type = ssmt_type,
+                       .sparql_attr = NULL,
+               },
+               {
+                       .spotlight_attr = "kMDItemContentTypeTree",
+                       .type = ssmt_type,
+                       .sparql_attr = NULL,
+               },
+
+               /* Image metadata */
+               {
+                       .spotlight_attr = "kMDItemPixelWidth",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:width",
+               },
+               {
+                       .spotlight_attr = "kMDItemPixelHeight",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:height",
+               },
+               {
+                       .spotlight_attr = "kMDItemColorSpace",
+                       .type = ssmt_str,
+                       .sparql_attr = "nexif:colorSpace",
+               },
+               {
+                       .spotlight_attr = "kMDItemBitsPerSample",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:colorDepth",
+               },
+               {
+                       .spotlight_attr = "kMDItemFocalLength",
+                       .type = ssmt_num,
+                       .sparql_attr = "nmm:focalLength",
+               },
+               {
+                       .spotlight_attr = "kMDItemISOSpeed",
+                       .type = ssmt_num,
+                       .sparql_attr = "nmm:isoSpeed",
+               },
+               {
+                       .spotlight_attr = "kMDItemOrientation",
+                       .type = ssmt_bool,
+                       .sparql_attr = "nfo:orientation",
+               },
+               {
+                       .spotlight_attr = "kMDItemResolutionWidthDPI",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:horizontalResolution",
+               },
+               {
+                       .spotlight_attr = "kMDItemResolutionHeightDPI",
+                       .type = ssmt_num,
+                       .sparql_attr = "nfo:verticalResolution",
+               },
+               {
+                       .spotlight_attr = "kMDItemExposureTimeSeconds",
+                       .type = ssmt_num,
+                       .sparql_attr = "nmm:exposureTime",
+               },
+
+               /* Audio metadata */
+               {
+                       .spotlight_attr = "kMDItemComposer",
+                       .type = ssmt_str,
+                       .sparql_attr = "nmm:composer",
+               },
+               {
+                       .spotlight_attr = "kMDItemMusicalGenre",
+                       .type = ssmt_str,
+                       .sparql_attr = "nfo:genre",
+               },
+       };
+       size_t i;
+
+       for (i = 0; i < ARRAY_SIZE(spotlight_sparql_attr_map); i++) {
+               const struct sl_attr_map *m = &spotlight_sparql_attr_map[i];
+               int cmp;
+
+               cmp = strcmp(m->spotlight_attr, sl_attr);
+               if (cmp == 0) {
+                       return m;
+               }
+       }
+
+       return NULL;
+}
+
+const struct sl_type_map *sl_type_map_by_spotlight(const char *sl_type)
+{
+       static const struct sl_type_map spotlight_sparql_type_map[] = {
+               {
+                       .spotlight_type = "1",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nmo#Email",
+               },
+               {
+                       .spotlight_type = "2",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nco#Contact",
+               },
+               {
+                       .spotlight_type = "3",
+                       .type = kMDTypeMapNotSup,
+                       .sparql_type = NULL, /*PrefPane*/
+               },
+               {
+                       .spotlight_type = "4",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Font",
+               },
+               {
+                       .spotlight_type = "5",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Bookmark",
+               },
+               {
+                       .spotlight_type = "6",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nco#Contact",
+               },
+               {
+                       .spotlight_type = "7",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Video",
+               },
+               {
+                       .spotlight_type = "8",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Executable",
+               },
+               {
+                       .spotlight_type = "9",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Folder",
+               },
+               {
+                       .spotlight_type = "10",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Audio",
+               },
+               {
+                       .spotlight_type = "11",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "application/pdf",
+               },
+               {
+                       .spotlight_type = "12",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Presentation",
+               },
+               {
+                       .spotlight_type = "13",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Image",
+               },
+               {
+                       .spotlight_type = "public.jpeg",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "image/jpeg",
+               },
+               {
+                       .spotlight_type = "public.tiff",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "image/tiff",
+               },
+               {
+                       .spotlight_type = "com.compuserve.gif",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "image/gif",
+               },
+               {
+                       .spotlight_type = "public.png",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "image/png",
+               },
+               {
+                       .spotlight_type = "com.microsoft.bmp",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "image/bmp",
+               },
+               {
+                       .spotlight_type = "public.content",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Document",
+               },
+               {
+                       .spotlight_type = "public.mp3",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "audio/mpeg",
+               },
+               {
+                       .spotlight_type = "public.mpeg-4-audio",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "audio/x-aac",
+               },
+               {
+                       .spotlight_type = "com.apple.application",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Software",
+               },
+               {
+                       .spotlight_type = "public.text",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#TextDocument",
+               },
+               {
+                       .spotlight_type = "public.plain-text",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "text/plain",
+               },
+               {
+                       .spotlight_type = "public.rtf",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "text/rtf",
+               },
+               {
+                       .spotlight_type = "public.html",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "text/html",
+               },
+               {
+                       .spotlight_type = "public.xml",
+                       .type = kMDTypeMapMime,
+                       .sparql_type = "text/xml",
+               },
+               {
+                       .spotlight_type = "public.source-code",
+                       .type = kMDTypeMapRDF,
+                       .sparql_type = "http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#SourceCode",
+               },
+       };
+       size_t i;
+
+       for (i = 0; i < ARRAY_SIZE(spotlight_sparql_type_map); i++) {
+               const struct sl_type_map *m = &spotlight_sparql_type_map[i];
+               int cmp;
+
+               cmp = strcmp(m->spotlight_type, sl_type);
+               if (cmp == 0) {
+                       return m;
+               }
+       }
+
+       return NULL;
+}

diff --git a/source3/rpc_server/mdssvc/sparql_mapping.h b/source3/rpc_server/mdssvc/sparql_mapping.h
new file mode 100644 (file)
index 0000000..496e19c
--- /dev/null
+++ b/source3/rpc_server/mdssvc/sparql_mapping.h
@@ -0,0 +1,58 @@
+/*
+  Copyright (c) 2012 Ralph Boehme
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+*/
+
+#ifndef SPOTLIGHT_SPARQL_MAP_H
+#define SPOTLIGHT_SPARQL_MAP_H
+
+enum ssm_type {
+       ssmt_bool,   /* a boolean value that doesn't requires a SPARQL FILTER */
+       ssmt_num,    /* a numeric value that requires a SPARQL FILTER */
+       ssmt_str,    /* a string value that requieres a SPARQL FILTER */
+       ssmt_fts,    /* a string value that will be queried with SPARQL 'fts:match' */
+       ssmt_date,   /* date values are handled in a special map function map_daterange() */
+       ssmt_type    /* kMDItemContentType, requires special mapping */
+};
+
+struct sl_attr_map {
+       const char *spotlight_attr;
+       enum ssm_type type;
+       const char *sparql_attr;
+};
+
+enum kMDTypeMap {
+       kMDTypeMapNotSup, /* not supported */
+       kMDTypeMapRDF,    /* query with rdf:type */
+       kMDTypeMapMime    /* query with nie:mimeType */
+};
+
+struct sl_type_map {
+       /*
+        * MD query value of attributes '_kMDItemGroupId' and
+        * 'kMDItemContentTypeTree
+        */
+       const char *spotlight_type;
+
+       /*
+        * Whether SPARQL query must search attribute rdf:type or
+        * nie:mime_Type
+        */
+       enum kMDTypeMap type;
+
+       /* the SPARQL query match string */
+       const char *sparql_type;
+};
+
+const struct sl_attr_map *sl_attr_map_by_spotlight(const char *sl_attr);
+const struct sl_type_map *sl_type_map_by_spotlight(const char *sl_type);
+#endif

diff --git a/source3/rpc_server/wscript_build b/source3/rpc_server/wscript_build
index d448e8bf004c66907afa46d10164d8e89fa6ce28..1da41f205f31e44ea55dde3695951d2015fef7de 100755 (executable)
--- a/source3/rpc_server/wscript_build
+++ b/source3/rpc_server/wscript_build
@@ -132,6 +132,7 @@ bld.SAMBA3_SUBSYSTEM('RPC_MDSSVC',
                     source='''mdssvc/mdssvc.c
                     mdssvc/dalloc.c
                     mdssvc/marshalling.c
+                    mdssvc/sparql_mapping.c
                     mdssvc/srv_mdssvc_nt.c
                     ../../librpc/gen_ndr/srv_mdssvc.c''',
                     deps='samba-util ' + bld.env['libtracker'],