public void fetchInternal(Message[] messages, FetchProfile fp, MessageRetrievalListener listener)
throws MessagingException {
if (messages.length == 0) {
return;
}
checkOpen();
HashMap<String, Message> messageMap = new HashMap<String, Message>();
for (Message m : messages) {
messageMap.put(m.getUid(), m);
}
/*
* Figure out what command we are going to run:
* FLAGS - UID FETCH (FLAGS)
* ENVELOPE - UID FETCH (INTERNALDATE UID RFC822.SIZE FLAGS BODY.PEEK[
* HEADER.FIELDS (date subject from content-type to cc)])
* STRUCTURE - UID FETCH (BODYSTRUCTURE)
* BODY_SANE - UID FETCH (BODY.PEEK[]<0.N>) where N = max bytes returned
* BODY - UID FETCH (BODY.PEEK[])
* Part - UID FETCH (BODY.PEEK[ID]) where ID = mime part ID
*/
final LinkedHashSet<String> fetchFields = new LinkedHashSet<String>();
fetchFields.add(ImapConstants.UID);
if (fp.contains(FetchProfile.Item.FLAGS)) {
fetchFields.add(ImapConstants.FLAGS);
}
if (fp.contains(FetchProfile.Item.ENVELOPE)) {
fetchFields.add(ImapConstants.INTERNALDATE);
fetchFields.add(ImapConstants.RFC822_SIZE);
fetchFields.add(ImapConstants.FETCH_FIELD_HEADERS);
}
if (fp.contains(FetchProfile.Item.STRUCTURE)) {
fetchFields.add(ImapConstants.BODYSTRUCTURE);
}
if (fp.contains(FetchProfile.Item.BODY_SANE)) {
fetchFields.add(ImapConstants.FETCH_FIELD_BODY_PEEK_SANE);
}
if (fp.contains(FetchProfile.Item.BODY)) {
fetchFields.add(ImapConstants.FETCH_FIELD_BODY_PEEK);
}
final Part fetchPart = fp.getFirstPart();
if (fetchPart != null) {
String[] partIds = fetchPart.getHeader(MimeHeader.HEADER_ANDROID_ATTACHMENT_STORE_DATA);
if (partIds != null) {
fetchFields.add(
ImapConstants.FETCH_FIELD_BODY_PEEK_BARE
+ "["
+ partIds[0]
+ "]"
+ (mFetchSize > 0 ? String.format("<0.%d>", mFetchSize) : ""));
}
}
try {
mConnection.sendCommand(
String.format(
ImapConstants.UID_FETCH + " %s (%s)",
ImapStore.joinMessageUids(messages),
Utility.combine(fetchFields.toArray(new String[fetchFields.size()]), ' ')),
false);
ImapResponse response;
int messageNumber = 0;
do {
response = null;
try {
response = mConnection.readResponse(listener);
if (!response.isDataResponse(1, ImapConstants.FETCH)) {
continue; // Ignore
}
final ImapList fetchList = response.getListOrEmpty(2);
final String uid = fetchList.getKeyedStringOrEmpty(ImapConstants.UID).getString();
if (TextUtils.isEmpty(uid)) continue;
ImapMessage message = (ImapMessage) messageMap.get(uid);
if (message == null) continue;
if (fp.contains(FetchProfile.Item.FLAGS)) {
final ImapList flags = fetchList.getKeyedListOrEmpty(ImapConstants.FLAGS);
for (int i = 0, count = flags.size(); i < count; i++) {
final ImapString flag = flags.getStringOrEmpty(i);
if (flag.is(ImapConstants.FLAG_DELETED)) {
message.setFlagInternal(Flag.DELETED, true);
} else if (flag.is(ImapConstants.FLAG_ANSWERED)) {
message.setFlagInternal(Flag.ANSWERED, true);
} else if (flag.is(ImapConstants.FLAG_SEEN)) {
message.setFlagInternal(Flag.SEEN, true);
} else if (flag.is(ImapConstants.FLAG_FLAGGED)) {
message.setFlagInternal(Flag.FLAGGED, true);
}
}
}
if (fp.contains(FetchProfile.Item.ENVELOPE)) {
final Date internalDate =
fetchList.getKeyedStringOrEmpty(ImapConstants.INTERNALDATE).getDateOrNull();
final int size =
fetchList.getKeyedStringOrEmpty(ImapConstants.RFC822_SIZE).getNumberOrZero();
final InputStream header =
fetchList
.getKeyedStringOrEmpty(ImapConstants.BODY_BRACKET_HEADER, true)
.getAsStream();
message.setInternalDate(internalDate);
message.setSize(size);
message.parse(header);
}
if (fp.contains(FetchProfile.Item.STRUCTURE)) {
ImapList bs = fetchList.getKeyedListOrEmpty(ImapConstants.BODYSTRUCTURE);
if (!bs.isEmpty()) {
try {
parseBodyStructure(bs, message, ImapConstants.TEXT);
} catch (MessagingException e) {
if (Logging.LOGD) {
Log.v(Logging.LOG_TAG, "Error handling message", e);
}
message.setBody(null);
}
}
}
if (fp.contains(FetchProfile.Item.BODY) || fp.contains(FetchProfile.Item.BODY_SANE)) {
// Body is keyed by "BODY[]...".
// Previously used "BODY[..." but this can be confused with "BODY[HEADER..."
// TODO Should we accept "RFC822" as well??
ImapString body = fetchList.getKeyedStringOrEmpty("BODY[]", true);
String bodyText = body.getString();
InputStream bodyStream = body.getAsStream();
message.parse(bodyStream);
}
if (fetchPart != null && fetchPart.getSize() > 0) {
InputStream bodyStream = fetchList.getKeyedStringOrEmpty("BODY[", true).getAsStream();
String contentType = fetchPart.getContentType();
String[] encodingHeader =
fetchPart.getHeader(MimeHeader.HEADER_CONTENT_TRANSFER_ENCODING);
String contentTransferEncoding = null;
if (encodingHeader != null) {
contentTransferEncoding = encodingHeader[0];
}
// TODO Don't create 2 temp files.
// decodeBody creates BinaryTempFileBody, but we could avoid this
// if we implement ImapStringBody.
// (We'll need to share a temp file. Protect it with a ref-count.)
fetchPart.setBody(
decodeBody(bodyStream, contentTransferEncoding, fetchPart.getSize(), listener));
}
if (listener != null) {
listener.messageRetrieved(message);
}
} finally {
destroyResponses();
}
} while (!response.isTagged());
} catch (IOException ioe) {
throw ioExceptionHandler(mConnection, ioe);
}
}
