/**
* 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.cxf.attachment;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.util.Collection;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.mail.Header;
import javax.mail.internet.InternetHeaders;
import org.apache.cxf.helpers.HttpHeaderHelper;
import org.apache.cxf.message.Attachment;
public final class AttachmentUtil {
private static volatile int counter;
private static final String ATT_UUID = UUID.randomUUID().toString();
private AttachmentUtil() {
}
/**
* @param ns
* @return
*/
public static String createContentID(String ns) throws UnsupportedEncodingException {
// tend to change
String cid = "http://cxf.apache.org/";
String name = ATT_UUID + "-" + String.valueOf(++counter);
if (ns != null && (ns.length() > 0)) {
try {
URI uri = new URI(ns);
String host = uri.toURL().getHost();
cid = host;
} catch (URISyntaxException e) {
cid = ns;
} catch (MalformedURLException e) {
cid = ns;
}
}
return URLEncoder.encode(name, "UTF-8") + "@" + URLEncoder.encode(cid, "UTF-8");
}
public static String getUniqueBoundaryValue(int part) {
StringBuffer s = new StringBuffer();
// Unique string is ----=_Part_<part>_<hashcode>.<currentTime>
s.append("----=_Part_").append(part++).append("_").append(s.hashCode()).append('.').append(
System.currentTimeMillis());
return s.toString();
}
public static String getAttchmentPartHeader(Attachment att) {
StringBuffer buffer = new StringBuffer(200);
buffer.append(HttpHeaderHelper.getHeaderKey(HttpHeaderHelper.CONTENT_TYPE) + ": "
+ att.getDataHandler().getContentType() + ";\r\n");
if (att.isXOP()) {
buffer.append("Content-Transfer-Encoding: binary\r\n");
}
buffer.append("Content-ID: <" + att.getId() + ">\r\n\r\n");
return buffer.toString();
}
public static Map<String, DataHandler> getDHMap(Collection<Attachment> attachments) {
Map<String, DataHandler> dataHandlers = null;
if (attachments != null) {
if (attachments instanceof LazyAttachmentCollection) {
dataHandlers = ((LazyAttachmentCollection)attachments).createDataHandlerMap();
} else {
//preserve the order of iteration
dataHandlers = new LinkedHashMap<String, DataHandler>();
for (Attachment attachment : attachments) {
dataHandlers.put(attachment.getId(), attachment.getDataHandler());
}
}
}
return dataHandlers == null ? new LinkedHashMap<String, DataHandler>() : dataHandlers;
}
public static Attachment createAttachment(InputStream stream, InternetHeaders headers)
throws IOException {
String id = headers.getHeader("Content-ID", null);
if (id != null && id.startsWith("<")) {
id = id.substring(1, id.length() - 1);
} else {
//no Content-ID, set cxf default ID
id = "Content-ID: <root.message@cxf.apache.org";
}
id = URLDecoder.decode(id.startsWith("cid:") ? id.substring(4) : id, "UTF-8");
AttachmentImpl att = new AttachmentImpl(id);
final String ct = headers.getHeader("Content-Type", null);
boolean quotedPrintable = false;
for (Enumeration<?> e = headers.getAllHeaders(); e.hasMoreElements();) {
Header header = (Header) e.nextElement();
if (header.getName().equalsIgnoreCase("Content-Transfer-Encoding")) {
if (header.getValue().equalsIgnoreCase("binary")) {
att.setXOP(true);
} else if (header.getValue().equalsIgnoreCase("quoted-printable")) {
quotedPrintable = true;
}
}
att.setHeader(header.getName(), header.getValue());
}
if (quotedPrintable) {
DataSource source = new AttachmentDataSource(ct, new QuotedPrintableDecoderStream(stream));
att.setDataHandler(new DataHandler(source));
} else {
DataSource source = new AttachmentDataSource(ct, stream);
att.setDataHandler(new DataHandler(source));
}
return att;
}
public static boolean isTypeSupported(String contentType, List<String> types) {
if (contentType == null) {
return false;
}
contentType = contentType.toLowerCase();
for (String s : types) {
if (contentType.indexOf(s) != -1) {
return true;
}
}
return false;
}
}