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);
}
}
/**
* Copy field-by-field from a "store" message to a "provider" message
*
* @param message The message we've just downloaded (must be a MimeMessage)
* @param localMessage The message we'd like to write into the DB
* @return true if dirty (changes were made)
*/
public static boolean updateMessageFields(
final EmailContent.Message localMessage,
final Message message,
final long accountId,
final long mailboxId)
throws MessagingException {
final Address[] from = message.getFrom();
final Address[] to = message.getRecipients(Message.RecipientType.TO);
final Address[] cc = message.getRecipients(Message.RecipientType.CC);
final Address[] bcc = message.getRecipients(Message.RecipientType.BCC);
final Address[] replyTo = message.getReplyTo();
final String subject = message.getSubject();
final Date sentDate = message.getSentDate();
final Date internalDate = message.getInternalDate();
if (from != null && from.length > 0) {
localMessage.mDisplayName = from[0].toFriendly();
}
if (sentDate != null) {
localMessage.mTimeStamp = sentDate.getTime();
} else if (internalDate != null) {
LogUtils.w(Logging.LOG_TAG, "No sentDate, falling back to internalDate");
localMessage.mTimeStamp = internalDate.getTime();
}
if (subject != null) {
localMessage.mSubject = subject;
}
localMessage.mFlagRead = message.isSet(Flag.SEEN);
if (message.isSet(Flag.ANSWERED)) {
localMessage.mFlags |= EmailContent.Message.FLAG_REPLIED_TO;
}
// Keep the message in the "unloaded" state until it has (at least) a display name.
// This prevents early flickering of empty messages in POP download.
if (localMessage.mFlagLoaded != EmailContent.Message.FLAG_LOADED_COMPLETE) {
if (localMessage.mDisplayName == null || "".equals(localMessage.mDisplayName)) {
localMessage.mFlagLoaded = EmailContent.Message.FLAG_LOADED_UNLOADED;
} else {
localMessage.mFlagLoaded = EmailContent.Message.FLAG_LOADED_PARTIAL;
}
}
localMessage.mFlagFavorite = message.isSet(Flag.FLAGGED);
// public boolean mFlagAttachment = false;
// public int mFlags = 0;
localMessage.mServerId = message.getUid();
if (internalDate != null) {
localMessage.mServerTimeStamp = internalDate.getTime();
}
// public String mClientId;
// Only replace the local message-id if a new one was found. This is seen in some ISP's
// which may deliver messages w/o a message-id header.
final String messageId = message.getMessageId();
if (messageId != null) {
localMessage.mMessageId = messageId;
}
// public long mBodyKey;
localMessage.mMailboxKey = mailboxId;
localMessage.mAccountKey = accountId;
if (from != null && from.length > 0) {
localMessage.mFrom = Address.toString(from);
}
localMessage.mTo = Address.toString(to);
localMessage.mCc = Address.toString(cc);
localMessage.mBcc = Address.toString(bcc);
localMessage.mReplyTo = Address.toString(replyTo);
// public String mText;
// public String mHtml;
// public String mTextReply;
// public String mHtmlReply;
// // Can be used while building messages, but is NOT saved by the Provider
// transient public ArrayList<Attachment> mAttachments = null;
return true;
}
@Override
public void copyMessages(Message[] messages, Folder folder, MessageUpdateCallbacks callbacks)
throws MessagingException {
checkOpen();
try {
List<ImapResponse> responseList =
mConnection.executeSimpleCommand(
String.format(
ImapConstants.UID_COPY + " %s \"%s\"",
ImapStore.joinMessageUids(messages),
ImapStore.encodeFolderName(folder.getName(), mStore.mPathPrefix)));
// Build a message map for faster UID matching
HashMap<String, Message> messageMap = new HashMap<String, Message>();
boolean handledUidPlus = false;
for (Message m : messages) {
messageMap.put(m.getUid(), m);
}
// Process response to get the new UIDs
for (ImapResponse response : responseList) {
// All "BAD" responses are bad. Only "NO", tagged responses are bad.
if (response.isBad() || (response.isNo() && response.isTagged())) {
String responseText = response.getStatusResponseTextOrEmpty().getString();
throw new MessagingException(responseText);
}
// Skip untagged responses; they're just status
if (!response.isTagged()) {
continue;
}
// No callback provided to report of UID changes; nothing more to do here
// NOTE: We check this here to catch any server errors
if (callbacks == null) {
continue;
}
ImapList copyResponse = response.getListOrEmpty(1);
String responseCode = copyResponse.getStringOrEmpty(0).getString();
if (ImapConstants.COPYUID.equals(responseCode)) {
handledUidPlus = true;
String origIdSet = copyResponse.getStringOrEmpty(2).getString();
String newIdSet = copyResponse.getStringOrEmpty(3).getString();
String[] origIdArray = ImapUtility.getImapSequenceValues(origIdSet);
String[] newIdArray = ImapUtility.getImapSequenceValues(newIdSet);
// There has to be a 1:1 mapping between old and new IDs
if (origIdArray.length != newIdArray.length) {
throw new MessagingException(
"Set length mis-match; orig IDs \""
+ origIdSet
+ "\" new IDs \""
+ newIdSet
+ "\"");
}
for (int i = 0; i < origIdArray.length; i++) {
final String id = origIdArray[i];
final Message m = messageMap.get(id);
if (m != null) {
callbacks.onMessageUidChange(m, newIdArray[i]);
}
}
}
}
// If the server doesn't support UIDPLUS, try a different way to get the new UID(s)
if (callbacks != null && !handledUidPlus) {
ImapFolder newFolder = (ImapFolder) folder;
try {
// Temporarily select the destination folder
newFolder.open(OpenMode.READ_WRITE);
// Do the search(es) ...
for (Message m : messages) {
String searchString = "HEADER Message-Id \"" + m.getMessageId() + "\"";
String[] newIdArray = newFolder.searchForUids(searchString);
if (newIdArray.length == 1) {
callbacks.onMessageUidChange(m, newIdArray[0]);
}
}
} catch (MessagingException e) {
// Log, but, don't abort; failures here don't need to be propagated
Log.d(Logging.LOG_TAG, "Failed to find message", e);
} finally {
newFolder.close(false);
}
// Re-select the original folder
doSelect();
}
} catch (IOException ioe) {
throw ioExceptionHandler(mConnection, ioe);
} finally {
destroyResponses();
}
}