| /************************************************************************ |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER |
| * |
| * Copyright 2008, 2010 Oracle and/or its affiliates. All rights reserved. |
| * |
| * Use is subject to license terms. |
| * |
| * Licensed 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. You can also |
| * obtain a copy of the License at http://odftoolkit.org/docs/license.txt |
| * |
| * 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.odftoolkit.odfdom.pkg; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Enumeration; |
| import java.util.Map; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| import java.util.zip.ZipInputStream; |
| import org.xml.sax.ErrorHandler; |
| import org.xml.sax.SAXException; |
| |
| class ZipHelper { |
| |
| private ZipFile mZipFile = null; |
| private byte[] mZipBuffer = null; |
| private OdfPackage mPackage = null; |
| |
| public ZipHelper(OdfPackage pkg, ZipFile zipFile) { |
| mZipFile = zipFile; |
| mZipBuffer = null; |
| mPackage = pkg; |
| } |
| |
| public ZipHelper(OdfPackage pkg, byte[] buffer) { |
| mZipBuffer = buffer; |
| mZipFile = null; |
| mPackage = pkg; |
| } |
| |
| String entriesToMap(Map<String, ZipEntry> zipEntries) throws IOException, SAXException { |
| String firstEntryName = null; |
| if (mZipFile != null) { |
| Enumeration<? extends ZipEntry> entries = mZipFile.entries(); |
| if (entries.hasMoreElements()) { |
| ZipEntry zipEntry = entries.nextElement(); |
| if (zipEntry != null) { |
| firstEntryName = zipEntry.getName(); |
| addZipEntry(zipEntry, zipEntries); |
| while (entries.hasMoreElements()) { |
| zipEntry = entries.nextElement(); |
| addZipEntry(zipEntry, zipEntries); |
| } |
| } |
| } |
| } else { |
| ZipInputStream inputStream = new ZipInputStream(new ByteArrayInputStream(mZipBuffer)); |
| if (inputStream.available() == 0) { |
| throw new IllegalArgumentException("Could not unzip the given ODF package!"); |
| } else { |
| ZipEntry zipEntry = inputStream.getNextEntry(); |
| if (zipEntry != null) { |
| firstEntryName = zipEntry.getName(); |
| addZipEntry(zipEntry, zipEntries); |
| while (zipEntry != null) { |
| addZipEntry(zipEntry, zipEntries); |
| try { |
| zipEntry = inputStream.getNextEntry(); |
| } catch (java.util.zip.ZipException e) { |
| // JDK 6 -- the try/catch is workaround for a |
| // specific JDK 5 only problem |
| String eMsg = e.getMessage(); |
| String jVersion = System.getProperty("java.version"); |
| if (eMsg != null && jVersion != null && !eMsg.contains("missing entry name") && !jVersion.equals("1.5.0")) { |
| Logger.getLogger(ZipHelper.class.getName()).info("ZIP ENTRY not found"); |
| throw new java.util.zip.ZipException("ZIP entry '" + zipEntry.toString() + "': " + eMsg); |
| }else{ |
| Logger.getLogger(ZipHelper.class.getName()).info(e.getMessage()); |
| throw new java.util.zip.ZipException("ZIP entry '" + zipEntry.toString() + "': " + eMsg); |
| } |
| } |
| } |
| } |
| } |
| inputStream.close(); |
| } |
| return firstEntryName; |
| } |
| |
| private void addZipEntry(ZipEntry zipEntry, Map<String, ZipEntry> zipEntries) { |
| String filePath = OdfPackage.normalizePath(zipEntry.getName()); |
| ErrorHandler errorHandler = mPackage.getErrorHandler(); |
| if (errorHandler != null) { |
| try { |
| int zipMethod = zipEntry.getMethod(); |
| if (zipMethod != ZipEntry.STORED && zipMethod != ZipEntry.DEFLATED) { |
| mPackage.getErrorHandler().error( |
| new OdfValidationException(OdfPackageConstraint.PACKAGE_ENTRY_USING_INVALID_COMPRESSION, mPackage.getBaseURI(), filePath)); |
| } |
| } catch (SAXException ex) { |
| Logger.getLogger(OdfPackage.class.getName()).log(Level.SEVERE, null, ex); |
| } |
| } |
| zipEntries.put(filePath, zipEntry); |
| } |
| |
| InputStream getInputStream(ZipEntry entry) throws IOException { |
| if (mZipFile != null) { |
| return mZipFile.getInputStream(entry); |
| } else { |
| ZipInputStream inputStream = new ZipInputStream(new ByteArrayInputStream(mZipBuffer)); |
| ZipEntry zipEntry = inputStream.getNextEntry(); |
| while (zipEntry != null) { |
| if (zipEntry.getName().equalsIgnoreCase(entry.getName())) { |
| return readAsInputStream(inputStream); |
| } |
| zipEntry = inputStream.getNextEntry(); |
| } |
| return null; |
| } |
| } |
| |
| private InputStream readAsInputStream(ZipInputStream inputStream) throws IOException { |
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); |
| if (outputStream != null) { |
| byte[] buf = new byte[4096]; |
| int r = 0; |
| while ((r = inputStream.read(buf, 0, 4096)) > -1) { |
| outputStream.write(buf, 0, r); |
| } |
| inputStream.close(); |
| } |
| return new ByteArrayInputStream(outputStream.toByteArray()); |
| |
| } |
| |
| void close() throws IOException { |
| if (mZipFile != null) { |
| mZipFile.close(); |
| } else { |
| mZipBuffer = null; |
| } |
| } |
| } |