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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 : #include <com/sun/star/embed/ElementModes.hpp>
21 : #include <unotools/streamwrap.hxx>
22 : #include <xmlversion.hxx>
23 : #include <xmloff/xmlmetae.hxx>
24 :
25 : #include <xmloff/xmltoken.hxx>
26 : #include <comphelper/processfactory.hxx>
27 : #include <com/sun/star/io/XActiveDataSource.hpp>
28 : #include <com/sun/star/io/XOutputStream.hpp>
29 : #include <com/sun/star/util/DateTime.hpp>
30 : #include <com/sun/star/util/MeasureUnit.hpp>
31 : #include <com/sun/star/xml/sax/InputSource.hpp>
32 : #include <com/sun/star/xml/sax/Parser.hpp>
33 : #include <com/sun/star/xml/sax/Writer.hpp>
34 :
35 : using namespace ::com::sun::star::xml::sax;
36 : using namespace ::com::sun::star::uno;
37 : using namespace ::com::sun::star;
38 :
39 : const char XMLN_VERSIONSLIST[] = "VersionList.xml";
40 :
41 : // #110897#
42 0 : XMLVersionListExport::XMLVersionListExport(
43 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > xContext,
44 : const com::sun::star::uno::Sequence < com::sun::star::util::RevisionTag >& rVersions,
45 : const OUString &rFileName,
46 : Reference< XDocumentHandler > &rHandler )
47 : : SvXMLExport( xContext, "", rFileName, util::MeasureUnit::CM, rHandler ),
48 0 : maVersions( rVersions )
49 : {
50 0 : _GetNamespaceMap().AddAtIndex( XML_NAMESPACE_DC_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_DC),
51 0 : xmloff::token::GetXMLToken(xmloff::token::XML_N_DC), XML_NAMESPACE_DC );
52 0 : _GetNamespaceMap().AddAtIndex( XML_NAMESPACE_FRAMEWORK_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_VERSIONS_LIST),
53 0 : xmloff::token::GetXMLToken(xmloff::token::XML_N_VERSIONS_LIST), XML_NAMESPACE_FRAMEWORK );
54 0 : }
55 :
56 0 : sal_uInt32 XMLVersionListExport::exportDoc( enum ::xmloff::token::XMLTokenEnum )
57 : {
58 0 : GetDocHandler()->startDocument();
59 :
60 0 : addChaffWhenEncryptedStorage();
61 :
62 0 : sal_uInt16 nPos = _GetNamespaceMap().GetIndexByKey( XML_NAMESPACE_DC );
63 :
64 0 : AddAttribute( XML_NAMESPACE_NONE, _GetNamespaceMap().GetAttrNameByIndex( nPos ),
65 0 : _GetNamespaceMap().GetNameByIndex ( nPos ) );
66 :
67 0 : nPos = _GetNamespaceMap().GetIndexByKey( XML_NAMESPACE_FRAMEWORK );
68 0 : AddAttribute( XML_NAMESPACE_NONE, _GetNamespaceMap().GetAttrNameByIndex( nPos ),
69 0 : _GetNamespaceMap().GetNameByIndex ( nPos ) );
70 :
71 : {
72 : // the following object will write all collected attributes in its dtor
73 0 : SvXMLElementExport aRoot( *this, XML_NAMESPACE_FRAMEWORK, xmloff::token::XML_VERSION_LIST, true, true );
74 :
75 0 : for ( sal_Int32 n=0; n<maVersions.getLength(); n++ )
76 : {
77 0 : const util::RevisionTag& rInfo = maVersions[n];
78 : AddAttribute( XML_NAMESPACE_FRAMEWORK,
79 : xmloff::token::XML_TITLE,
80 0 : OUString( rInfo.Identifier ) );
81 : AddAttribute( XML_NAMESPACE_FRAMEWORK,
82 : xmloff::token::XML_COMMENT,
83 0 : OUString( rInfo.Comment ) );
84 : AddAttribute( XML_NAMESPACE_FRAMEWORK,
85 : xmloff::token::XML_CREATOR,
86 0 : OUString( rInfo.Author ) );
87 :
88 : OUString aDateStr =
89 0 : SvXMLMetaExport::GetISODateTimeString( rInfo.TimeStamp );
90 :
91 0 : AddAttribute( XML_NAMESPACE_DC, xmloff::token::XML_DATE_TIME, aDateStr );
92 :
93 : // the following object will write all collected attributes in its dtor
94 0 : SvXMLElementExport aEntry( *this, XML_NAMESPACE_FRAMEWORK, xmloff::token::XML_VERSION_ENTRY, true, true );
95 0 : }
96 : }
97 0 : GetDocHandler()->endDocument();
98 0 : return 0;
99 : }
100 :
101 0 : XMLVersionListImport::XMLVersionListImport(
102 : const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > xContext,
103 : com::sun::star::uno::Sequence < com::sun::star::util::RevisionTag >& rVersions )
104 : : SvXMLImport(xContext, ""),
105 0 : maVersions( rVersions )
106 : {
107 0 : GetNamespaceMap().AddAtIndex( XML_NAMESPACE_FRAMEWORK_IDX, xmloff::token::GetXMLToken(xmloff::token::XML_NP_VERSIONS_LIST),
108 0 : xmloff::token::GetXMLToken(xmloff::token::XML_N_VERSIONS_LIST), XML_NAMESPACE_FRAMEWORK );
109 0 : }
110 :
111 0 : XMLVersionListImport::~XMLVersionListImport( void ) throw()
112 0 : {}
113 :
114 0 : SvXMLImportContext *XMLVersionListImport::CreateContext(
115 : sal_uInt16 nPrefix,
116 : const OUString& rLocalName,
117 : const Reference< XAttributeList > & xAttrList )
118 : {
119 0 : SvXMLImportContext *pContext = 0;
120 :
121 0 : if ( XML_NAMESPACE_FRAMEWORK == nPrefix &&
122 0 : rLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_VERSION_LIST) )
123 : {
124 0 : pContext = new XMLVersionListContext( *this, nPrefix, rLocalName, xAttrList );
125 : }
126 : else
127 : {
128 0 : pContext = SvXMLImport::CreateContext( nPrefix, rLocalName, xAttrList );
129 : }
130 :
131 0 : return pContext;
132 : }
133 :
134 0 : XMLVersionListContext::XMLVersionListContext( XMLVersionListImport& rImport,
135 : sal_uInt16 nPrefix,
136 : const OUString& rLocalName,
137 : const Reference< XAttributeList > & )
138 : : SvXMLImportContext( rImport, nPrefix, rLocalName )
139 0 : , rLocalRef( rImport )
140 : {
141 0 : }
142 :
143 0 : XMLVersionListContext::~XMLVersionListContext( void )
144 0 : {}
145 :
146 0 : SvXMLImportContext *XMLVersionListContext::CreateChildContext( sal_uInt16 nPrefix,
147 : const OUString& rLocalName,
148 : const Reference< XAttributeList > & xAttrList )
149 : {
150 0 : SvXMLImportContext *pContext = 0;
151 :
152 0 : if ( nPrefix == XML_NAMESPACE_FRAMEWORK &&
153 0 : rLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_VERSION_ENTRY) )
154 : {
155 0 : pContext = new XMLVersionContext( rLocalRef, nPrefix, rLocalName, xAttrList );
156 : }
157 : else
158 : {
159 0 : pContext = new SvXMLImportContext( rLocalRef, nPrefix, rLocalName );
160 : }
161 :
162 0 : return pContext;
163 : }
164 :
165 0 : XMLVersionContext::XMLVersionContext( XMLVersionListImport& rImport,
166 : sal_uInt16 nPref,
167 : const OUString& rLocalName,
168 : const Reference< XAttributeList > & xAttrList )
169 : : SvXMLImportContext( rImport, nPref, rLocalName )
170 0 : , rLocalRef( rImport )
171 : {
172 0 : sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
173 :
174 0 : if ( !nAttrCount )
175 0 : return;
176 :
177 0 : util::RevisionTag aInfo;
178 0 : for ( sal_Int16 i=0; i < nAttrCount; i++ )
179 : {
180 0 : OUString aLocalName;
181 0 : const OUString& rAttrName = xAttrList->getNameByIndex( i );
182 0 : sal_uInt16 nPrefix = rImport.GetNamespaceMap().GetKeyByAttrName( rAttrName, &aLocalName );
183 :
184 0 : if ( XML_NAMESPACE_FRAMEWORK == nPrefix )
185 : {
186 0 : if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_TITLE) )
187 : {
188 0 : const OUString& rAttrValue = xAttrList->getValueByIndex( i );
189 0 : aInfo.Identifier = rAttrValue;
190 : }
191 0 : else if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_COMMENT) )
192 : {
193 0 : const OUString& rAttrValue = xAttrList->getValueByIndex( i );
194 0 : aInfo.Comment = rAttrValue;
195 : }
196 0 : else if ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_CREATOR) )
197 : {
198 0 : const OUString& rAttrValue = xAttrList->getValueByIndex( i );
199 0 : aInfo.Author = rAttrValue;
200 : }
201 : }
202 0 : else if ( ( XML_NAMESPACE_DC == nPrefix ) &&
203 0 : ( aLocalName == xmloff::token::GetXMLToken(xmloff::token::XML_DATE_TIME) ) )
204 : {
205 0 : const OUString& rAttrValue = xAttrList->getValueByIndex( i );
206 0 : util::DateTime aTime;
207 0 : if ( ParseISODateTimeString( rAttrValue, aTime ) )
208 0 : aInfo.TimeStamp = aTime;
209 : }
210 0 : }
211 :
212 0 : uno::Sequence < util::RevisionTag >& aList = rLocalRef.GetList();
213 0 : sal_Int32 nLength = aList.getLength();
214 0 : aList.realloc( nLength+1 );
215 0 : aList[nLength] = aInfo;
216 : }
217 :
218 0 : XMLVersionContext::~XMLVersionContext( void )
219 0 : {}
220 :
221 0 : bool XMLVersionContext::ParseISODateTimeString(
222 : const OUString& rString,
223 : util::DateTime& rDateTime )
224 : {
225 0 : bool bSuccess = true;
226 :
227 0 : OUString aDateStr, aTimeStr;
228 0 : sal_Int32 nPos = rString.indexOf( (sal_Unicode) 'T' );
229 0 : if ( nPos >= 0 )
230 : {
231 0 : aDateStr = rString.copy( 0, nPos );
232 0 : aTimeStr = rString.copy( nPos + 1 );
233 : }
234 : else
235 0 : aDateStr = rString; // no separator: only date part
236 :
237 0 : sal_Int32 nYear = 0;
238 0 : sal_Int32 nMonth = 1;
239 0 : sal_Int32 nDay = 1;
240 0 : sal_Int32 nHour = 0;
241 0 : sal_Int32 nMin = 0;
242 0 : sal_Int32 nSec = 0;
243 :
244 0 : const sal_Unicode* pStr = aDateStr.getStr();
245 0 : sal_Int32 nDateTokens = 1;
246 0 : while ( *pStr )
247 : {
248 0 : if ( *pStr == '-' )
249 0 : nDateTokens++;
250 0 : pStr++;
251 : }
252 0 : if ( nDateTokens > 3 || aDateStr.isEmpty() )
253 0 : bSuccess = false;
254 : else
255 : {
256 0 : sal_Int32 n = 0;
257 0 : nYear = aDateStr.getToken( 0, '-', n ).toInt32();
258 0 : if ( nYear > 9999 )
259 0 : bSuccess = false;
260 0 : else if ( nDateTokens >= 2 )
261 : {
262 0 : nMonth = aDateStr.getToken( 0, '-', n ).toInt32();
263 0 : if ( nMonth > 12 )
264 0 : bSuccess = false;
265 0 : else if ( nDateTokens >= 3 )
266 : {
267 0 : nDay = aDateStr.getToken( 0, '-', n ).toInt32();
268 0 : if ( nDay > 31 )
269 0 : bSuccess = false;
270 : }
271 : }
272 : }
273 :
274 0 : if ( bSuccess && !aTimeStr.isEmpty() ) // time is optional
275 : {
276 0 : pStr = aTimeStr.getStr();
277 0 : sal_Int32 nTimeTokens = 1;
278 0 : while ( *pStr )
279 : {
280 0 : if ( *pStr == ':' )
281 0 : nTimeTokens++;
282 0 : pStr++;
283 : }
284 0 : if ( nTimeTokens > 3 )
285 0 : bSuccess = false;
286 : else
287 : {
288 0 : sal_Int32 n = 0;
289 0 : nHour = aTimeStr.getToken( 0, ':', n ).toInt32();
290 0 : if ( nHour > 23 )
291 0 : bSuccess = false;
292 0 : else if ( nTimeTokens >= 2 )
293 : {
294 0 : nMin = aTimeStr.getToken( 0, ':', n ).toInt32();
295 0 : if ( nMin > 59 )
296 0 : bSuccess = false;
297 0 : else if ( nTimeTokens >= 3 )
298 : {
299 0 : nSec = aTimeStr.getToken( 0, ':', n ).toInt32();
300 0 : if ( nSec > 59 )
301 0 : bSuccess = false;
302 : }
303 : }
304 : }
305 : }
306 :
307 0 : if ( bSuccess )
308 : {
309 0 : rDateTime.Day = sal::static_int_cast< sal_uInt16 >(nDay);
310 0 : rDateTime.Month = sal::static_int_cast< sal_uInt16 >(nMonth);
311 0 : rDateTime.Year = sal::static_int_cast< sal_uInt16 >(nYear);
312 0 : rDateTime.Hours = sal::static_int_cast< sal_uInt16 >(nHour);
313 0 : rDateTime.Minutes = sal::static_int_cast< sal_uInt16 >(nMin);
314 0 : rDateTime.Seconds = sal::static_int_cast< sal_uInt16 >(nSec);
315 : }
316 :
317 0 : return bSuccess;
318 : }
319 :
320 0 : void SAL_CALL XMLVersionListPersistence::store( const uno::Reference< embed::XStorage >& xRoot, const uno::Sequence< util::RevisionTag >& rVersions )
321 : throw (::com::sun::star::io::IOException, ::com::sun::star::uno::Exception, ::com::sun::star::uno::RuntimeException, std::exception)
322 : {
323 : // no storage, no version list!
324 0 : if ( xRoot.is() )
325 : {
326 : // get the services needed for writing the xml data
327 : Reference< uno::XComponentContext > xContext =
328 0 : comphelper::getProcessComponentContext();
329 :
330 0 : Reference< XWriter > xWriter = Writer::create(xContext);
331 :
332 : // check whether there's already a sub storage with the version info
333 : // and delete it
334 0 : OUString sVerName( XMLN_VERSIONSLIST );
335 :
336 : try {
337 : // open (create) the sub storage with the version info
338 0 : uno::Reference< io::XStream > xVerStream = xRoot->openStreamElement(
339 : sVerName,
340 0 : embed::ElementModes::READWRITE | embed::ElementModes::TRUNCATE );
341 0 : if ( !xVerStream.is() )
342 0 : throw uno::RuntimeException();
343 :
344 0 : Reference< io::XOutputStream > xOut = xVerStream->getOutputStream();
345 0 : if ( !xOut.is() )
346 0 : throw uno::RuntimeException(); // the stream was successfully opened for writing already
347 :
348 0 : Reference< io::XActiveDataSource > xSrc( xWriter, uno::UNO_QUERY );
349 0 : xSrc->setOutputStream(xOut);
350 :
351 0 : Reference< XDocumentHandler > xHandler( xWriter, uno::UNO_QUERY );
352 :
353 0 : XMLVersionListExport aExp( xContext, rVersions, sVerName, xHandler );
354 :
355 0 : aExp.exportDoc( ::xmloff::token::XML_VERSION );
356 :
357 0 : xVerStream = uno::Reference< io::XStream >(); // use refcounting for now to dispose
358 : }
359 0 : catch( uno::Exception& )
360 : {
361 : // TODO: error handling
362 0 : }
363 : }
364 0 : }
365 :
366 3836 : uno::Sequence< util::RevisionTag > SAL_CALL XMLVersionListPersistence::load( const uno::Reference< embed::XStorage >& xRoot )
367 : throw (::com::sun::star::container::NoSuchElementException, ::com::sun::star::io::IOException, ::com::sun::star::uno::Exception, ::com::sun::star::uno::RuntimeException, std::exception)
368 : {
369 3836 : com::sun::star::uno::Sequence < com::sun::star::util::RevisionTag > aVersions;
370 :
371 7672 : const OUString sDocName( XMLN_VERSIONSLIST );
372 7672 : uno::Reference< container::XNameAccess > xRootNames( xRoot, uno::UNO_QUERY );
373 :
374 : try {
375 3836 : if ( xRootNames.is() && xRootNames->hasByName( sDocName ) && xRoot->isStreamElement( sDocName ) )
376 : {
377 0 : Reference< uno::XComponentContext > xContext = comphelper::getProcessComponentContext();
378 :
379 0 : InputSource aParserInput;
380 :
381 0 : uno::Reference< beans::XPropertySet > xProps( xRoot, uno::UNO_QUERY );
382 : OSL_ENSURE( xProps.is(), "Storage must implement XPropertySet!\n" );
383 0 : if ( xProps.is() )
384 : {
385 : try {
386 0 : xProps->getPropertyValue("URL") >>= aParserInput.sSystemId;
387 : }
388 0 : catch( uno::Exception& )
389 : {}
390 : }
391 :
392 0 : uno::Reference< io::XStream > xDocStream = xRoot->openStreamElement(
393 : sDocName,
394 0 : embed::ElementModes::READ );
395 0 : if ( !xDocStream.is() )
396 0 : throw uno::RuntimeException();
397 :
398 0 : aParserInput.aInputStream = xDocStream->getInputStream();
399 : OSL_ENSURE( aParserInput.aInputStream.is(),
400 : "The stream was successfully opened for reading, the input part must be accessible!\n" );
401 0 : if ( !aParserInput.aInputStream.is() )
402 0 : throw uno::RuntimeException();
403 :
404 : // get filter
405 0 : Reference< XDocumentHandler > xFilter = new XMLVersionListImport( xContext, aVersions );
406 :
407 : // connect parser and filter
408 0 : Reference< XParser > xParser = xml::sax::Parser::create(xContext);
409 0 : xParser->setDocumentHandler( xFilter );
410 :
411 : // parse
412 : try
413 : {
414 0 : xParser->parseStream( aParserInput );
415 : }
416 0 : catch( SAXParseException& ) {}
417 0 : catch( SAXException& ) {}
418 0 : catch( io::IOException& ) {}
419 : }
420 : }
421 2942 : catch( uno::Exception& )
422 : {
423 : // TODO: error handling
424 : }
425 :
426 7672 : return aVersions;
427 : }
428 :
429 : extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface * SAL_CALL
430 3838 : XMLVersionListPersistence_get_implementation(
431 : css::uno::XComponentContext *,
432 : css::uno::Sequence<css::uno::Any> const &)
433 : {
434 3838 : return cppu::acquire(new XMLVersionListPersistence());
435 : }
436 :
437 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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