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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.tika.parser.microsoft.ooxml;
import java.io.IOException;
import java.io.InputStream;
import java.util.Locale;
import org.apache.commons.io.input.CloseShieldInputStream;
import org.apache.poi.POIXMLDocument;
import org.apache.poi.POIXMLTextExtractor;
import org.apache.poi.extractor.ExtractorFactory;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.openxml4j.exceptions.OpenXML4JException;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.openxml4j.opc.PackageAccess;
import org.apache.poi.openxml4j.opc.PackagePart;
import org.apache.poi.openxml4j.opc.PackageRelationshipCollection;
import org.apache.poi.util.LocaleUtil;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFRelation;
import org.apache.poi.xssf.extractor.XSSFBEventBasedExcelExtractor;
import org.apache.poi.xssf.extractor.XSSFEventBasedExcelExtractor;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFRelation;
import org.apache.tika.exception.TikaException;
import org.apache.tika.io.TikaInputStream;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.EmptyParser;
import org.apache.tika.parser.ParseContext;
import org.apache.tika.parser.microsoft.OfficeParserConfig;
import org.apache.tika.parser.microsoft.ooxml.xslf.XSLFEventBasedPowerPointExtractor;
import org.apache.tika.parser.microsoft.ooxml.xwpf.XWPFEventBasedWordExtractor;
import org.apache.tika.parser.pkg.ZipContainerDetector;
import org.apache.xmlbeans.XmlException;
import org.xml.sax.ContentHandler;
import org.xml.sax.SAXException;
/**
* Figures out the correct {@link OOXMLExtractor} for the supplied document and
* returns it.
*/
public class OOXMLExtractorFactory {
public static void parse(
InputStream stream, ContentHandler baseHandler,
Metadata metadata, ParseContext context)
throws IOException, SAXException, TikaException {
Locale locale = context.get(Locale.class, LocaleUtil.getUserLocale());
ExtractorFactory.setThreadPrefersEventExtractors(true);
try {
OOXMLExtractor extractor;
OPCPackage pkg;
// Locate or Open the OPCPackage for the file
TikaInputStream tis = TikaInputStream.cast(stream);
if (tis != null && tis.getOpenContainer() instanceof OPCPackage) {
pkg = (OPCPackage) tis.getOpenContainer();
} else if (tis != null && tis.hasFile()) {
pkg = OPCPackage.open(tis.getFile().getPath(), PackageAccess.READ);
tis.setOpenContainer(pkg);
} else {
InputStream shield = new CloseShieldInputStream(stream);
pkg = OPCPackage.open(shield);
}
// Get the type, and ensure it's one we handle
MediaType type = ZipContainerDetector.detectOfficeOpenXML(pkg);
if (type == null || OOXMLParser.UNSUPPORTED_OOXML_TYPES.contains(type)) {
// Not a supported type, delegate to Empty Parser
EmptyParser.INSTANCE.parse(stream, baseHandler, metadata, context);
return;
}
metadata.set(Metadata.CONTENT_TYPE, type.toString());
// Have the appropriate OOXML text extractor picked
POIXMLTextExtractor poiExtractor = null;
// This has already been set by OOXMLParser's call to configure()
// We can rely on this being non-null.
OfficeParserConfig config = context.get(OfficeParserConfig.class);
if (config.getUseSAXDocxExtractor()) {
poiExtractor = trySXWPF(pkg);
}
if (poiExtractor == null && config.getUseSAXPptxExtractor()) {
poiExtractor = trySXSLF(pkg);
}
if (poiExtractor == null) {
poiExtractor = ExtractorFactory.createExtractor(pkg);
}
POIXMLDocument document = poiExtractor.getDocument();
if (poiExtractor instanceof XSSFBEventBasedExcelExtractor) {
extractor = new XSSFBExcelExtractorDecorator(context, poiExtractor, locale);
} else if (poiExtractor instanceof XSSFEventBasedExcelExtractor) {
extractor = new XSSFExcelExtractorDecorator(
context, poiExtractor, locale);
} else if (poiExtractor instanceof XWPFEventBasedWordExtractor) {
extractor = new SXWPFWordExtractorDecorator(metadata, context,
(XWPFEventBasedWordExtractor) poiExtractor);
metadata.add("X-Parsed-By", XWPFEventBasedWordExtractor.class.getCanonicalName());
} else if (poiExtractor instanceof XSLFEventBasedPowerPointExtractor) {
extractor = new SXSLFPowerPointExtractorDecorator(metadata, context,
(XSLFEventBasedPowerPointExtractor) poiExtractor);
metadata.add("X-Parsed-By", XSLFEventBasedPowerPointExtractor.class.getCanonicalName());
} else if (document == null) {
throw new TikaException(
"Expecting UserModel based POI OOXML extractor with a document, but none found. " +
"The extractor returned was a " + poiExtractor
);
} else if (document instanceof XMLSlideShow) {
extractor = new XSLFPowerPointExtractorDecorator(
context, (org.apache.poi.xslf.extractor.XSLFPowerPointExtractor) poiExtractor);
} else if (document instanceof XWPFDocument) {
extractor = new XWPFWordExtractorDecorator( metadata,
context, (XWPFWordExtractor) poiExtractor);
} else {
extractor = new POIXMLTextExtractorDecorator(context, poiExtractor);
}
// Get the bulk of the metadata first, so that it's accessible during
// parsing if desired by the client (see TIKA-1109)
extractor.getMetadataExtractor().extract(metadata);
// Extract the text, along with any in-document metadata
extractor.getXHTML(baseHandler, metadata, context);
} catch (IllegalArgumentException e) {
if (e.getMessage() != null &&
e.getMessage().startsWith("No supported documents found")) {
throw new TikaException(
"TIKA-418: RuntimeException while getting content"
+ " for thmx and xps file types", e);
} else {
throw new TikaException("Error creating OOXML extractor", e);
}
} catch (InvalidFormatException e) {
throw new TikaException("Error creating OOXML extractor", e);
} catch (OpenXML4JException e) {
throw new TikaException("Error creating OOXML extractor", e);
} catch (XmlException e) {
throw new TikaException("Error creating OOXML extractor", e);
}
}
private static POIXMLTextExtractor trySXWPF(OPCPackage pkg) throws XmlException, OpenXML4JException, IOException {
PackageRelationshipCollection packageRelationshipCollection = pkg.getRelationshipsByType("http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument");
if (packageRelationshipCollection.size() == 0) {
packageRelationshipCollection = pkg.getRelationshipsByType("http://purl.oclc.org/ooxml/officeDocument/relationships/officeDocument");
}
if (packageRelationshipCollection.size() == 0) {
return null;
}
PackagePart corePart = pkg.getPart(packageRelationshipCollection.getRelationship(0));
String targetContentType = corePart.getContentType();
for (XWPFRelation relation : XWPFWordExtractor.SUPPORTED_TYPES) {
if (targetContentType.equals(relation.getContentType())) {
return new XWPFEventBasedWordExtractor(pkg);
}
}
return null;
}
private static POIXMLTextExtractor trySXSLF(OPCPackage pkg) throws XmlException, OpenXML4JException, IOException {
PackageRelationshipCollection packageRelationshipCollection = pkg.getRelationshipsByType("http://schemas.openxmlformats.org/officeDocument/2006/relationships/officeDocument");
if (packageRelationshipCollection.size() == 0) {
packageRelationshipCollection = pkg.getRelationshipsByType("http://purl.oclc.org/ooxml/officeDocument/relationships/officeDocument");
}
if (packageRelationshipCollection.size() == 0) {
return null;
}
PackagePart corePart = pkg.getPart(packageRelationshipCollection.getRelationship(0));
String targetContentType = corePart.getContentType();
XSLFRelation[] xslfRelations = org.apache.poi.xslf.extractor.XSLFPowerPointExtractor.SUPPORTED_TYPES;
for (int i = 0; i < xslfRelations.length; i++) {
XSLFRelation xslfRelation = xslfRelations[i];
if (xslfRelation.getContentType().equals(targetContentType)) {
return new XSLFEventBasedPowerPointExtractor(pkg);
}
}
if (XSLFRelation.THEME_MANAGER.getContentType().equals(targetContentType)) {
return new XSLFEventBasedPowerPointExtractor(pkg);
}
return null;
}
}
