/**
* Returns the filename associated with this body part.
*
* <p>This method returns the value of the "filename" parameter from the Content-Disposition
* header field. If the latter is not available, it returns the value of the "name" parameter from
* the Content-Type header field.
*/
public String getFileName() throws MessagingException {
String filename = null;
String header = getHeader(CONTENT_DISPOSITION_NAME, null);
if (header != null) {
ContentDisposition cd = new ContentDisposition(header);
filename = cd.getParameter("filename");
}
if (filename == null) {
header = getHeader(CONTENT_TYPE_NAME, null);
if (header != null) {
try {
ContentType contentType = new ContentType(header);
filename = contentType.getParameter("name");
} catch (ParseException e) {
}
}
}
PrivilegedAction a = new GetSystemPropertyAction("mail.mime.decodefilename");
if ("true".equals(AccessController.doPrivileged(a))) {
try {
filename = MimeUtility.decodeText(filename);
} catch (UnsupportedEncodingException e) {
throw new MessagingException(e.getMessage(), e);
}
}
return filename;
}
/**
* Sets the filename associated with this body part.
*
* @exception IllegalWriteException if the underlying implementation does not support modification
* @exception IllegalStateException if this body part is obtained from a READ_ONLY folder
*/
public void setFileName(String filename) throws MessagingException {
PrivilegedAction a = new GetSystemPropertyAction("mail.mime.encodefilename");
if ("true".equals(AccessController.doPrivileged(a))) {
try {
filename = MimeUtility.encodeText(filename);
} catch (UnsupportedEncodingException e) {
throw new MessagingException(e.getMessage(), e);
}
}
String header = getHeader(CONTENT_DISPOSITION_NAME, null);
if (header == null) {
header = "attachment";
}
ContentDisposition cd = new ContentDisposition(header);
cd.setParameter("filename", filename);
setHeader(CONTENT_DISPOSITION_NAME, cd.toString());
// We will also set the "name" parameter of the Content-Type field
// to preserve compatibility with nonconformant MUAs
header = getHeader(CONTENT_TYPE_NAME, null);
if (header == null) {
DataHandler dh0 = getDataHandler();
if (dh0 != null) header = dh0.getContentType();
else header = "text/plain";
}
try {
ContentType contentType = new ContentType(header);
contentType.setParameter("name", filename);
setHeader(CONTENT_TYPE_NAME, contentType.toString());
} catch (ParseException e) {
}
}
/**
* Sets the Content-Disposition header field of this part.
*
* @exception IllegalWriteException if the underlying implementation does not support modification
* @exception IllegalStateException if this body part is obtained from a READ_ONLY folder
*/
public void setDisposition(String disposition) throws MessagingException {
if (disposition == null) {
removeHeader(CONTENT_DISPOSITION_NAME);
} else {
String value = getHeader(CONTENT_DISPOSITION_NAME, null);
if (value != null) {
ContentDisposition cd = new ContentDisposition(value);
cd.setDisposition(disposition);
disposition = cd.toString();
}
setHeader(CONTENT_DISPOSITION_NAME, disposition);
}
}
/**
* Updates the headers of this part, based on the content.
*
* @exception IllegalWriteException if the underlying implementation does not support modification
* @exception IllegalStateException if this body part is obtained from a READ_ONLY folder
*/
protected void updateHeaders() throws MessagingException {
if (getDataHandler() != null) {
try {
String contentType = dh.getContentType();
ContentType ct = new ContentType(contentType);
if (ct.match("multipart/*")) {
MimeMultipart mmp = (MimeMultipart) dh.getContent();
mmp.updateHeaders();
} else if (ct.match("message/rfc822")) {
} else {
// Update Content-Transfer-Encoding
if (getHeader(CONTENT_TRANSFER_ENCODING_NAME) == null) {
setHeader(CONTENT_TRANSFER_ENCODING_NAME, MimeUtility.getEncoding(dh));
}
}
// Update Content-Type if nonexistent,
// and Content-Type "name" with Content-Disposition "filename"
// parameter(see setFilename())
if (getHeader(CONTENT_TYPE_NAME) == null) {
String disposition = getHeader(CONTENT_DISPOSITION_NAME, null);
if (disposition != null) {
ContentDisposition cd = new ContentDisposition(disposition);
String filename = cd.getParameter("filename");
if (filename != null) {
ct.setParameter("name", filename);
contentType = ct.toString();
}
}
setHeader(CONTENT_TYPE_NAME, contentType);
}
} catch (IOException e) {
throw new MessagingException("I/O error", e);
}
}
}
