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*
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*
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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*
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* file and include the License file at packager/legal/LICENSE.txt.
*
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*
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package com.sun.mail.imap;
import java.io.*;
import java.util.Enumeration;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
import com.sun.mail.util.*;
import com.sun.mail.iap.*;
import com.sun.mail.imap.protocol.*;
/**
* An IMAP body part.
*
* @author John Mani
* @author Bill Shannon
*/
public class IMAPBodyPart extends MimeBodyPart implements ReadableMime {
private IMAPMessage message;
private BODYSTRUCTURE bs;
private String sectionId;
// processed values ..
private String type;
private String description;
private boolean headersLoaded = false;
private static final boolean decodeFileName =
PropUtil.getBooleanSystemProperty("mail.mime.decodefilename", false);
protected IMAPBodyPart(BODYSTRUCTURE bs, String sid, IMAPMessage message) {
super();
this.bs = bs;
this.sectionId = sid;
this.message = message;
// generate content-type
ContentType ct = new ContentType(bs.type, bs.subtype, bs.cParams);
type = ct.toString();
}
/* Override this method to make it a no-op, rather than throw
* an IllegalWriteException. This will permit IMAPBodyParts to
* be inserted in newly crafted MimeMessages, especially when
* forwarding or replying to messages.
*/
protected void updateHeaders() {
return;
}
public int getSize() throws MessagingException {
return bs.size;
}
public int getLineCount() throws MessagingException {
return bs.lines;
}
public String getContentType() throws MessagingException {
return type;
}
public String getDisposition() throws MessagingException {
return bs.disposition;
}
public void setDisposition(String disposition) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public String getEncoding() throws MessagingException {
return bs.encoding;
}
public String getContentID() throws MessagingException {
return bs.id;
}
public String getContentMD5() throws MessagingException {
return bs.md5;
}
public void setContentMD5(String md5) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public String getDescription() throws MessagingException {
if (description != null) // cached value ?
return description;
if (bs.description == null)
return null;
try {
description = MimeUtility.decodeText(bs.description);
} catch (UnsupportedEncodingException ex) {
description = bs.description;
}
return description;
}
public void setDescription(String description, String charset)
throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public String getFileName() throws MessagingException {
String filename = null;
if (bs.dParams != null)
filename = bs.dParams.get("filename");
if (filename == null && bs.cParams != null)
filename = bs.cParams.get("name");
if (decodeFileName && filename != null) {
try {
filename = MimeUtility.decodeText(filename);
} catch (UnsupportedEncodingException ex) {
throw new MessagingException("Can't decode filename", ex);
}
}
return filename;
}
public void setFileName(String filename) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
protected InputStream getContentStream() throws MessagingException {
InputStream is = null;
boolean pk = message.getPeek(); // acquire outside of message cache lock
// Acquire MessageCacheLock, to freeze seqnum.
synchronized(message.getMessageCacheLock()) {
try {
IMAPProtocol p = message.getProtocol();
// Check whether this message is expunged
message.checkExpunged();
if (p.isREV1() && (message.getFetchBlockSize() != -1))
return new IMAPInputStream(message, sectionId,
message.ignoreBodyStructureSize() ? -1 : bs.size, pk);
// Else, vanila IMAP4, no partial fetch
int seqnum = message.getSequenceNumber();
BODY b;
if (pk)
b = p.peekBody(seqnum, sectionId);
else
b = p.fetchBody(seqnum, sectionId);
if (b != null)
is = b.getByteArrayInputStream();
} catch (ConnectionException cex) {
throw new FolderClosedException(
message.getFolder(), cex.getMessage());
} catch (ProtocolException pex) {
throw new MessagingException(pex.getMessage(), pex);
}
}
if (is == null)
throw new MessagingException("No content");
else
return is;
}
/**
* Return the MIME format stream of headers for this body part.
*/
private InputStream getHeaderStream() throws MessagingException {
if (!message.isREV1())
loadHeaders(); // will be needed below
// Acquire MessageCacheLock, to freeze seqnum.
synchronized(message.getMessageCacheLock()) {
try {
IMAPProtocol p = message.getProtocol();
// Check whether this message got expunged
message.checkExpunged();
if (p.isREV1()) {
int seqnum = message.getSequenceNumber();
BODY b = p.peekBody(seqnum, sectionId + ".MIME");
if (b == null)
throw new MessagingException("Failed to fetch headers");
ByteArrayInputStream bis = b.getByteArrayInputStream();
if (bis == null)
throw new MessagingException("Failed to fetch headers");
return bis;
} else {
// Can't read it from server, have to fake it
SharedByteArrayOutputStream bos =
new SharedByteArrayOutputStream(0);
LineOutputStream los = new LineOutputStream(bos);
try {
// Write out the header
Enumeration hdrLines = super.getAllHeaderLines();
while (hdrLines.hasMoreElements())
los.writeln((String)hdrLines.nextElement());
// The CRLF separator between header and content
los.writeln();
} catch (IOException ioex) {
// should never happen
} finally {
try {
los.close();
} catch (IOException cex) { }
}
return bos.toStream();
}
} catch (ConnectionException cex) {
throw new FolderClosedException(
message.getFolder(), cex.getMessage());
} catch (ProtocolException pex) {
throw new MessagingException(pex.getMessage(), pex);
}
}
}
/**
* Return the MIME format stream corresponding to this message part.
*
* @return the MIME format stream
* @since JavaMail 1.4.5
*/
public InputStream getMimeStream() throws MessagingException {
/*
* The IMAP protocol doesn't support returning the entire
* part content in one operation so we have to fake it by
* concatenating the header stream and the content stream.
*/
return new SequenceInputStream(getHeaderStream(), getContentStream());
}
public synchronized DataHandler getDataHandler()
throws MessagingException {
if (dh == null) {
if (bs.isMulti())
dh = new DataHandler(
new IMAPMultipartDataSource(
this, bs.bodies, sectionId, message)
);
else if (bs.isNested() && message.isREV1() && bs.envelope != null)
dh = new DataHandler(
new IMAPNestedMessage(message,
bs.bodies[0],
bs.envelope,
sectionId),
type
);
}
return super.getDataHandler();
}
public void setDataHandler(DataHandler content) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public void setContent(Object o, String type) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public void setContent(Multipart mp) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public String[] getHeader(String name) throws MessagingException {
loadHeaders();
return super.getHeader(name);
}
public void setHeader(String name, String value)
throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public void addHeader(String name, String value)
throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public void removeHeader(String name) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public Enumeration getAllHeaders() throws MessagingException {
loadHeaders();
return super.getAllHeaders();
}
public Enumeration getMatchingHeaders(String[] names)
throws MessagingException {
loadHeaders();
return super.getMatchingHeaders(names);
}
public Enumeration getNonMatchingHeaders(String[] names)
throws MessagingException {
loadHeaders();
return super.getNonMatchingHeaders(names);
}
public void addHeaderLine(String line) throws MessagingException {
throw new IllegalWriteException("IMAPBodyPart is read-only");
}
public Enumeration getAllHeaderLines() throws MessagingException {
loadHeaders();
return super.getAllHeaderLines();
}
public Enumeration getMatchingHeaderLines(String[] names)
throws MessagingException {
loadHeaders();
return super.getMatchingHeaderLines(names);
}
public Enumeration getNonMatchingHeaderLines(String[] names)
throws MessagingException {
loadHeaders();
return super.getNonMatchingHeaderLines(names);
}
private synchronized void loadHeaders() throws MessagingException {
if (headersLoaded)
return;
// "headers" should never be null since it's set in the constructor.
// If something did go wrong this will fix it, but is an unsynchronized
// assignment of "headers".
if (headers == null)
headers = new InternetHeaders();
// load headers
// Acquire MessageCacheLock, to freeze seqnum.
synchronized(message.getMessageCacheLock()) {
try {
IMAPProtocol p = message.getProtocol();
// Check whether this message got expunged
message.checkExpunged();
if (p.isREV1()) {
int seqnum = message.getSequenceNumber();
BODY b = p.peekBody(seqnum, sectionId + ".MIME");
if (b == null)
throw new MessagingException("Failed to fetch headers");
ByteArrayInputStream bis = b.getByteArrayInputStream();
if (bis == null)
throw new MessagingException("Failed to fetch headers");
headers.load(bis);
} else {
// RFC 1730 does not provide for fetching BodyPart headers
// So, just dump the RFC1730 BODYSTRUCTURE into the
// headerStore
// Content-Type
headers.addHeader("Content-Type", type);
// Content-Transfer-Encoding
headers.addHeader("Content-Transfer-Encoding", bs.encoding);
// Content-Description
if (bs.description != null)
headers.addHeader("Content-Description",
bs.description);
// Content-ID
if (bs.id != null)
headers.addHeader("Content-ID", bs.id);
// Content-MD5
if (bs.md5 != null)
headers.addHeader("Content-MD5", bs.md5);
}
} catch (ConnectionException cex) {
throw new FolderClosedException(
message.getFolder(), cex.getMessage());
} catch (ProtocolException pex) {
throw new MessagingException(pex.getMessage(), pex);
}
}
headersLoaded = true;
}
}
