001/* 002 * (C) Copyright 2006-2016 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 */ 019package org.nuxeo.ecm.platform.mimetype.detectors; 020 021import java.io.File; 022import java.io.IOException; 023import java.util.Map; 024import java.util.zip.ZipEntry; 025import java.util.zip.ZipFile; 026 027import org.apache.commons.io.FileUtils; 028import org.apache.commons.logging.Log; 029import org.apache.commons.logging.LogFactory; 030import org.nuxeo.common.utils.ZipUtils; 031import org.nuxeo.runtime.api.Framework; 032 033import net.sf.jmimemagic.MagicDetector; 034 035public class OOoMimetypeSniffer implements MagicDetector { 036 037 private static final Log log = LogFactory.getLog(OOoMimetypeSniffer.class); 038 039 @Override 040 public String getDisplayName() { 041 return "OOo 1.x & OpenDocument MimeType Detector"; 042 } 043 044 @Override 045 public String[] getHandledExtensions() { 046 return new String[] { "ods", "ots", "odt", "ott", "odp", "otp", "odg", "otg", "otm", "oth", "odi", "oti", "odf", 047 "otf", "odc", "otc", "sxw", "stw", "sxg", "sxc", "stc", "sxi", "sti", "sxd", "std", "sxm", }; 048 } 049 050 @Override 051 public String[] getHandledTypes() { 052 return new String[] { "application/vnd.oasis.opendocument.spreadsheet", 053 "application/vnd.oasis.opendocument.spreadsheet-template", "application/vnd.oasis.opendocument.text", 054 "application/vnd.oasis.opendocument.text-template", "application/vnd.oasis.opendocument.presentation", 055 "application/vnd.oasis.opendocument.presentation-template", 056 "application/vnd.oasis.opendocument.graphics", "application/vnd.oasis.opendocument.graphics-template", 057 "application/vnd.oasis.opendocument.text-master", "application/vnd.oasis.opendocument.text-web", 058 "application/vnd.oasis.opendocument.image", "application/vnd.oasis.opendocument.image-template", 059 "application/vnd.oasis.opendocument.formula", "application/vnd.oasis.opendocument.formula-template", 060 "application/vnd.oasis.opendocument.chart", "application/vnd.oasis.opendocument.chart-template", 061 // OOo 1.x file format 062 "application/vnd.sun.xml.writer", "application/vnd.sun.xml.writer.template", 063 "application/vnd.sun.xml.writer.global", "application/vnd.sun.xml.calc", 064 "application/vnd.sun.xml.calc.template", "application/vnd.sun.xml.impress", 065 "application/vnd.sun.xml.impress.template", "application/vnd.sun.xml.draw", 066 "application/vnd.sun.xml.draw.template", "application/vnd.sun.xml.math", }; 067 } 068 069 @Override 070 public String getName() { 071 return "ooodetector"; 072 } 073 074 @Override 075 public String getVersion() { 076 return "0.2"; 077 } 078 079 @Override 080 public String[] process(byte[] data, int offset, int length, long bitmask, char comparator, String mimeType, 081 Map params) { 082 String[] mimetypes = {}; 083 File file = null; 084 try { 085 file = Framework.createTempFile("magicdetector", ".xml"); 086 FileUtils.writeByteArrayToFile(file, data); 087 mimetypes = guessOOo(file); 088 } catch (IOException e) { 089 log.error(e); 090 } finally { 091 if (file != null) { 092 file.delete(); 093 } 094 } 095 return mimetypes; 096 } 097 098 @Override 099 public String[] process(File file, int offset, int length, long bitmask, char comparator, String mimeType, 100 Map params) { 101 return guessOOo(file); 102 } 103 104 public String[] guessOOo(File file) { 105 106 String[] mimetype = {}; 107 File tempFile = null; 108 109 try { 110 ZipFile zip = new ZipFile(file); 111 ZipEntry entry = zip.getEntry("mimetype"); 112 113 if (entry != null) { 114 // we have an opendocument so lets unzip 115 116 // unzip file to process xml content 117 tempFile = Framework.createTempFile("nxMimeTypeDetector_", ".dir"); 118 tempFile.delete(); // to be able to create a dir under this name 119 if (!tempFile.isDirectory()) { 120 tempFile.mkdir(); 121 } 122 ZipUtils.unzip(file, tempFile); 123 124 // retrieves mimetypefile 125 String path = tempFile.getAbsolutePath(); 126 path += File.separator + "mimetype"; 127 File mimetypeFile = new File(path); 128 mimetype = new String[] { FileUtils.readFileToString(mimetypeFile) }; 129 } 130 } catch (IOException e) { 131 // probably not a zip file 132 } finally { 133 if (tempFile != null) { 134 FileUtils.deleteQuietly(tempFile); 135 } 136 } 137 138 return mimetype; 139 } 140 141}