@Override
public void loadAttachmentProgress(int progress) {
try {
mCallback.loadAttachmentStatus(
mMessageId, mAttachmentId, EmailServiceStatus.IN_PROGRESS, progress);
} catch (final RemoteException e) {
// No danger if the client is no longer around
}
}
@Override
public void loadAttachment(
final IEmailServiceCallback cb, final long attachmentId, final boolean background)
throws RemoteException {
/// M: We Can't load attachment in low storage state @{
if (StorageLowState.checkIfStorageLow(mContext)) {
LogUtils.e(Logging.LOG_TAG, "Can't load attachment due to low storage");
cb.loadAttachmentStatus(0, attachmentId, EmailServiceStatus.SUCCESS, 0);
return;
}
/// @}
Folder remoteFolder = null;
try {
// 1. Check if the attachment is already here and return early in that case
Attachment attachment = Attachment.restoreAttachmentWithId(mContext, attachmentId);
if (attachment == null) {
cb.loadAttachmentStatus(0, attachmentId, EmailServiceStatus.ATTACHMENT_NOT_FOUND, 0);
return;
}
final long messageId = attachment.mMessageKey;
final EmailContent.Message message =
EmailContent.Message.restoreMessageWithId(mContext, attachment.mMessageKey);
if (message == null) {
cb.loadAttachmentStatus(messageId, attachmentId, EmailServiceStatus.MESSAGE_NOT_FOUND, 0);
return;
}
// If the message is loaded, just report that we're finished
if (Utility.attachmentExists(mContext, attachment)
&& attachment.mUiState == UIProvider.AttachmentState.SAVED) {
cb.loadAttachmentStatus(messageId, attachmentId, EmailServiceStatus.SUCCESS, 0);
return;
}
// Say we're starting...
cb.loadAttachmentStatus(messageId, attachmentId, EmailServiceStatus.IN_PROGRESS, 0);
// 2. Open the remote folder.
final Account account = Account.restoreAccountWithId(mContext, message.mAccountKey);
Mailbox mailbox = Mailbox.restoreMailboxWithId(mContext, message.mMailboxKey);
if (mailbox.mType == Mailbox.TYPE_OUTBOX
/// M: View an attachment which comes from refMessage need sourceKey to identify
|| mailbox.mType == Mailbox.TYPE_DRAFTS) {
long sourceId =
Utility.getFirstRowLong(
mContext,
Body.CONTENT_URI,
new String[] {BodyColumns.SOURCE_MESSAGE_KEY},
BodyColumns.MESSAGE_KEY + "=?",
new String[] {Long.toString(messageId)},
null,
0,
-1L);
if (sourceId != -1) {
EmailContent.Message sourceMsg =
EmailContent.Message.restoreMessageWithId(mContext, sourceId);
if (sourceMsg != null) {
mailbox = Mailbox.restoreMailboxWithId(mContext, sourceMsg.mMailboxKey);
message.mServerId = sourceMsg.mServerId;
}
}
} else if (mailbox.mType == Mailbox.TYPE_SEARCH && message.mMainMailboxKey != 0) {
mailbox = Mailbox.restoreMailboxWithId(mContext, message.mMainMailboxKey);
}
if (account == null || mailbox == null) {
// If the account/mailbox are gone, just report success; the UI handles this
cb.loadAttachmentStatus(messageId, attachmentId, EmailServiceStatus.SUCCESS, 0);
return;
}
TrafficStats.setThreadStatsTag(TrafficFlags.getAttachmentFlags(mContext, account));
final Store remoteStore = Store.getInstance(account, mContext);
remoteFolder = remoteStore.getFolder(mailbox.mServerId);
remoteFolder.open(OpenMode.READ_WRITE);
// 3. Generate a shell message in which to retrieve the attachment,
// and a shell BodyPart for the attachment. Then glue them together.
final Message storeMessage = remoteFolder.createMessage(message.mServerId);
final MimeBodyPart storePart = new MimeBodyPart();
storePart.setSize((int) attachment.mSize);
storePart.setHeader(MimeHeader.HEADER_ANDROID_ATTACHMENT_STORE_DATA, attachment.mLocation);
storePart.setHeader(
MimeHeader.HEADER_CONTENT_TYPE,
String.format("%s;\n name=\"%s\"", attachment.mMimeType, attachment.mFileName));
// TODO is this always true for attachments? I think we dropped the
// true encoding along the way
/// M: set encoding type according to data base record.
String encoding = attachment.mEncoding;
if (TextUtils.isEmpty(encoding)) {
encoding = "base64";
}
storePart.setHeader(MimeHeader.HEADER_CONTENT_TRANSFER_ENCODING, encoding);
final MimeMultipart multipart = new MimeMultipart();
multipart.setSubType("mixed");
multipart.addBodyPart(storePart);
storeMessage.setHeader(MimeHeader.HEADER_CONTENT_TYPE, "multipart/mixed");
storeMessage.setBody(multipart);
// 4. Now ask for the attachment to be fetched
final FetchProfile fp = new FetchProfile();
fp.add(storePart);
remoteFolder.fetch(
new Message[] {storeMessage},
fp,
new MessageRetrievalListenerBridge(messageId, attachmentId, cb));
// If we failed to load the attachment, throw an Exception here, so that
// AttachmentDownloadService knows that we failed
if (storePart.getBody() == null) {
throw new MessagingException("Attachment not loaded.");
}
// Save the attachment to wherever it's going
AttachmentUtilities.saveAttachment(
mContext, storePart.getBody().getInputStream(), attachment);
// 6. Report success
cb.loadAttachmentStatus(messageId, attachmentId, EmailServiceStatus.SUCCESS, 0);
} catch (MessagingException me) {
LogUtils.i(Logging.LOG_TAG, me, "Error loading attachment");
final ContentValues cv = new ContentValues(1);
cv.put(AttachmentColumns.UI_STATE, UIProvider.AttachmentState.FAILED);
final Uri uri = ContentUris.withAppendedId(Attachment.CONTENT_URI, attachmentId);
mContext.getContentResolver().update(uri, cv, null, null);
cb.loadAttachmentStatus(0, attachmentId, EmailServiceStatus.CONNECTION_ERROR, 0);
} finally {
if (remoteFolder != null) {
remoteFolder.close(false);
}
}
}