/**
* Gets the message type based on the content type headers.
*
* @param msg The message to extract the type from.
* @return MDN if the message is an MDN message (<a href="http://tools.ietf.org/html/rfc3798">RFC
* 3798</a>)<br>
* DSN if the message is a DNS message (<a href="http://tools.ietf.org/html/rfc3464">RFC
* 3464</a>)<br>
* Normal for all other message type.<br>
* Return Unknown if an error occurs.
*/
public static TxMessageType getMessageType(MimeMessage msg) {
try {
ContentType contentType = new ContentType(msg.getContentType());
if (contentType.match(MDNStandard.MediaType.ReportMessage)
&& contentType.getParameter(MDNStandard.MediaType.ReportType) != null) {
if (contentType
.getParameter(MDNStandard.MediaType.ReportType)
.equalsIgnoreCase(MDNStandard.MediaType.ReportTypeValueNotification))
return TxMessageType.MDN;
else if (contentType
.getParameter(DSNStandard.MediaType.ReportType)
.equalsIgnoreCase(DSNStandard.MediaType.ReportTypeValueDelivery))
return TxMessageType.DSN;
} else if (contentType.match(SMIMEStandard.EncryptedContentMediaType)
|| contentType.match(SMIMEStandard.EncryptedContentMediaTypeAlternative)) {
return TxMessageType.SMIME;
}
return TxMessageType.IMF;
}
/// CLOVER:OFF
catch (ParseException e) {
LOGGER.warn("Failed to discern message type.", e);
} catch (MessagingException e) {
LOGGER.warn("Failed to discern message type.", e);
}
return TxMessageType.UNKNOWN;
/// CLOVER:ON
}
// x参数来确定是以html 1 格式显示还是以plain 2
// 调用时getPart（part，i，1）;
// 显示复杂邮件的正文内容
public String getPart(Part part, int partNum, int x) throws MessagingException, IOException {
String s = "";
String s1 = "";
String s2 = "";
String s5 = "";
String sct = part.getContentType();
if (sct == null) {
s = "part 无效";
return s;
}
ContentType ct = new ContentType(sct);
if (ct.match("text/html") || ct.match("text/plain")) {
// display text/plain inline
s1 = "" + (String) part.getContent() + "";
} else if (partNum != 0) {
String temp = "";
if ((temp = part.getFileName()) != null) {
s2 = "Filename: " + temp + "";
}
}
if (part.isMimeType("multipart/alternative")) {
String s6 = "";
String s7 = "";
Multipart mp = (Multipart) part.getContent();
int count = mp.getCount();
for (int i = 0; i < count; i++) {
if (mp.getBodyPart(i).isMimeType("text/plain")) s7 = getPart(mp.getBodyPart(i), i, 2);
else if (mp.getBodyPart(i).isMimeType("text/html")) s6 = getPart(mp.getBodyPart(i), i, 1);
}
if (x == 1) { // html格式的字符串
s5 = s6;
}
if (x == 2) { // paint类型的字符串
s5 = s7;
}
return s5;
}
s = s1 + s2;
return s;
}
/**
* Checks whether the MimePart contains an object of the given mime type.
*
* @param part the current MimePart
* @param mimeType the mime type to check
* @return {@code true} if the MimePart matches the given mime type, {@code false} otherwise
* @throws MessagingException parsing the MimeMessage failed
* @throws IOException parsing the MimeMessage failed
*/
private boolean isMimeType(final MimePart part, final String mimeType)
throws MessagingException, IOException {
// Do not use part.isMimeType(String) as it is broken for MimeBodyPart
// and does not really check the actual content type.
try {
final ContentType ct = new ContentType(part.getDataHandler().getContentType());
return ct.match(mimeType);
} catch (final ParseException ex) {
return part.getContentType().equalsIgnoreCase(mimeType);
}
}
private void writeBodyPart(byte[] bodyContent, Part part, ContentType contentType)
throws MessagingException {
DataSource ds = new ByteArrayDataSource(bodyContent, contentType.toString());
part.setDataHandler(new DataHandler(ds));
part.setHeader(CONTENT_TYPE, contentType.toString());
if (contentType.match("text/*")) {
part.setHeader(CONTENT_TRANSFER_ENCODING, "8bit");
} else if (binaryContent) {
part.setHeader(CONTENT_TRANSFER_ENCODING, "binary");
} else {
part.setHeader(CONTENT_TRANSFER_ENCODING, "base64");
}
}
private ContentType getContentType(Exchange exchange) throws ParseException {
String contentTypeStr = ExchangeHelper.getContentType(exchange);
if (contentTypeStr == null) {
contentTypeStr = DEFAULT_CONTENT_TYPE;
}
ContentType contentType = new ContentType(contentTypeStr);
String contentEncoding = ExchangeHelper.getContentEncoding(exchange);
// add a charset parameter for text subtypes
if (contentEncoding != null && contentType.match("text/*")) {
contentType.setParameter("charset", MimeUtility.mimeCharset(contentEncoding));
}
return contentType;
}
@Override
public void marshal(Exchange exchange, Object graph, OutputStream stream)
throws NoTypeConversionAvailableException, MessagingException, IOException {
if (multipartWithoutAttachment || headersInline || exchange.getIn().hasAttachments()) {
ContentType contentType = getContentType(exchange);
// remove the Content-Type header. This will be wrong afterwards...
exchange.getOut().removeHeader(Exchange.CONTENT_TYPE);
byte[] bodyContent = ExchangeHelper.convertToMandatoryType(exchange, byte[].class, graph);
Session session = Session.getInstance(System.getProperties());
MimeMessage mm = new MimeMessage(session);
MimeMultipart mp = new MimeMultipart(multipartSubType);
BodyPart part = new MimeBodyPart();
writeBodyPart(bodyContent, part, contentType);
mp.addBodyPart(part);
for (Map.Entry<String, Attachment> entry :
exchange.getIn().getAttachmentObjects().entrySet()) {
String attachmentFilename = entry.getKey();
Attachment attachment = entry.getValue();
part = new MimeBodyPart();
part.setDataHandler(attachment.getDataHandler());
part.setFileName(MimeUtility.encodeText(attachmentFilename, "UTF-8", null));
String ct = attachment.getDataHandler().getContentType();
contentType = new ContentType(ct);
part.setHeader(CONTENT_TYPE, ct);
if (!contentType.match("text/*") && binaryContent) {
part.setHeader(CONTENT_TRANSFER_ENCODING, "binary");
}
// Set headers to the attachment
for (String headerName : attachment.getHeaderNames()) {
List<String> values = attachment.getHeaderAsList(headerName);
for (String value : values) {
part.setHeader(headerName, value);
}
}
mp.addBodyPart(part);
exchange.getOut().removeAttachment(attachmentFilename);
}
mm.setContent(mp);
// copy headers if required and if the content can be converted into
// a String
if (headersInline && includeHeaders != null) {
for (Map.Entry<String, Object> entry : exchange.getIn().getHeaders().entrySet()) {
if (includeHeaders.matcher(entry.getKey()).matches()) {
String headerStr =
ExchangeHelper.convertToType(exchange, String.class, entry.getValue());
if (headerStr != null) {
mm.setHeader(entry.getKey(), headerStr);
}
}
}
}
mm.saveChanges();
Enumeration<?> hl = mm.getAllHeaders();
List<String> headers = new ArrayList<String>();
if (!headersInline) {
while (hl.hasMoreElements()) {
Object ho = hl.nextElement();
if (ho instanceof Header) {
Header h = (Header) ho;
exchange.getOut().setHeader(h.getName(), h.getValue());
headers.add(h.getName());
}
}
mm.saveChanges();
}
mm.writeTo(stream, headers.toArray(new String[0]));
} else {
// keep the original data
InputStream is = ExchangeHelper.convertToMandatoryType(exchange, InputStream.class, graph);
IOHelper.copyAndCloseInput(is, stream);
}
}
@Override
public Object unmarshal(Exchange exchange, InputStream stream)
throws IOException, MessagingException {
MimeBodyPart mimeMessage;
String contentType;
Message camelMessage;
Object content = null;
if (headersInline) {
mimeMessage = new MimeBodyPart(stream);
camelMessage = exchange.getOut();
MessageHelper.copyHeaders(exchange.getIn(), camelMessage, true);
contentType = mimeMessage.getHeader(CONTENT_TYPE, null);
// write the MIME headers not generated by javamail as Camel headers
Enumeration<?> headersEnum = mimeMessage.getNonMatchingHeaders(STANDARD_HEADERS);
while (headersEnum.hasMoreElements()) {
Object ho = headersEnum.nextElement();
if (ho instanceof Header) {
Header header = (Header) ho;
camelMessage.setHeader(header.getName(), header.getValue());
}
}
} else {
// check if this a multipart at all. Otherwise do nothing
contentType = exchange.getIn().getHeader(CONTENT_TYPE, String.class);
if (contentType == null) {
return stream;
}
try {
ContentType ct = new ContentType(contentType);
if (!ct.match("multipart/*")) {
return stream;
}
} catch (ParseException e) {
LOG.warn("Invalid Content-Type " + contentType + " ignored");
return stream;
}
camelMessage = exchange.getOut();
MessageHelper.copyHeaders(exchange.getIn(), camelMessage, true);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
IOHelper.copyAndCloseInput(stream, bos);
InternetHeaders headers = new InternetHeaders();
extractHeader(CONTENT_TYPE, camelMessage, headers);
extractHeader(MIME_VERSION, camelMessage, headers);
mimeMessage = new MimeBodyPart(headers, bos.toByteArray());
bos.close();
}
DataHandler dh;
try {
dh = mimeMessage.getDataHandler();
if (dh != null) {
content = dh.getContent();
contentType = dh.getContentType();
}
} catch (MessagingException e) {
LOG.warn("cannot parse message, no unmarshalling done");
}
if (content instanceof MimeMultipart) {
MimeMultipart mp = (MimeMultipart) content;
content = mp.getBodyPart(0);
for (int i = 1; i < mp.getCount(); i++) {
BodyPart bp = mp.getBodyPart(i);
DefaultAttachment camelAttachment = new DefaultAttachment(bp.getDataHandler());
@SuppressWarnings("unchecked")
Enumeration<Header> headers = bp.getAllHeaders();
while (headers.hasMoreElements()) {
Header header = headers.nextElement();
camelAttachment.addHeader(header.getName(), header.getValue());
}
camelMessage.addAttachmentObject(getAttachmentKey(bp), camelAttachment);
}
}
if (content instanceof BodyPart) {
BodyPart bp = (BodyPart) content;
camelMessage.setBody(bp.getInputStream());
contentType = bp.getContentType();
if (contentType != null && !DEFAULT_CONTENT_TYPE.equals(contentType)) {
camelMessage.setHeader(CONTENT_TYPE, contentType);
ContentType ct = new ContentType(contentType);
String charset = ct.getParameter("charset");
if (charset != null) {
camelMessage.setHeader(Exchange.CONTENT_ENCODING, MimeUtility.javaCharset(charset));
}
}
} else {
// If we find no body part, try to leave the message alone
LOG.info("no MIME part found");
}
return camelMessage;
}