| /* |
| * 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.xwpf.ml2006; |
| |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| |
| import org.apache.commons.codec.binary.Base64; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.SAXException; |
| |
| import org.apache.tika.exception.TikaException; |
| import org.apache.tika.extractor.EmbeddedDocumentExtractor; |
| import org.apache.tika.extractor.EmbeddedDocumentUtil; |
| import org.apache.tika.io.TikaInputStream; |
| import org.apache.tika.metadata.Metadata; |
| import org.apache.tika.parser.ParseContext; |
| import org.apache.tika.sax.XHTMLContentHandler; |
| |
| class BinaryDataHandler extends AbstractPartHandler { |
| |
| final Base64 base64 = new Base64(); |
| private final XHTMLContentHandler handler; |
| private final Metadata metadata; |
| private final ParseContext parseContext; |
| private boolean inBinaryData = false; |
| private StringBuilder buffer = new StringBuilder(); |
| |
| |
| public BinaryDataHandler(XHTMLContentHandler handler, Metadata metadata, ParseContext context) { |
| this.handler = handler; |
| this.metadata = metadata; |
| this.parseContext = context; |
| } |
| |
| |
| @Override |
| public void startDocument() throws SAXException { |
| } |
| |
| @Override |
| public void endDocument() throws SAXException { |
| |
| } |
| |
| @Override |
| public void endPart() throws SAXException, TikaException { |
| if (hasData()) { |
| EmbeddedDocumentExtractor embeddedDocumentExtractor = |
| EmbeddedDocumentUtil.getEmbeddedDocumentExtractor(parseContext); |
| Metadata embeddedMetadata = new Metadata(); |
| try (TikaInputStream stream = TikaInputStream.get(getInputStream())) { |
| embeddedDocumentExtractor.parseEmbedded(stream, handler, embeddedMetadata, false); |
| } catch (IOException e) { |
| throw new TikaException("error in finishing part", e); |
| } |
| buffer.setLength(0); |
| } |
| |
| } |
| |
| @Override |
| public void startElement(String uri, String localName, String qName, Attributes atts) |
| throws SAXException { |
| |
| if (uri.equals(Word2006MLDocHandler.PKG_NS) && localName.equals("binaryData")) { |
| inBinaryData = true; |
| } |
| } |
| |
| @Override |
| public void endElement(String uri, String localName, String qName) throws SAXException { |
| if (uri.equals(Word2006MLDocHandler.PKG_NS) && localName.equals("binaryData")) { |
| inBinaryData = false; |
| } |
| } |
| |
| @Override |
| public void characters(char[] ch, int start, int length) throws SAXException { |
| if (inBinaryData) { |
| buffer.append(ch, start, length); |
| } |
| } |
| |
| @Override |
| public void ignorableWhitespace(char[] ch, int start, int length) throws SAXException { |
| |
| } |
| |
| @Override |
| public String getContentType() { |
| return ""; |
| } |
| |
| boolean hasData() { |
| return buffer.length() > 0; |
| } |
| |
| private InputStream getInputStream() { |
| byte[] bytes = base64.decode(buffer.toString()); |
| return new ByteArrayInputStream(bytes); |
| } |
| } |