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Implement MsgId.unlink() and use it in DeleteMsgOnImap

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Currently only trashed or hidden messages are deleted by
DeleteMsgOnImap, so it is safe to remove database records.

It is planned to delete messages on IMAP server after
user-configurable time to cleanup the server even for messages
displayed in chats. For such messages, we unlink them from the
Message-ID, but keep the database record to display them.
This commit is contained in:
Alexander Krotov
2020-02-24 02:36:18 +03:00
parent cc0f977d6f
commit 2cf9c68040
2 changed files with 44 additions and 2 deletions
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29
src/job.rs
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@@ -462,7 +462,12 @@ impl Job {
we delete the message from the server */
let mid = msg.rfc724_mid;
let server_folder = msg.server_folder.as_ref().unwrap();
let res = imap_inbox.delete_msg(context, &mid, server_folder, msg.server_uid);
let res = if msg.server_uid == 0 {
// Message is already deleted on IMAP server.
ImapActionResult::AlreadyDone
} else {
imap_inbox.delete_msg(context, &mid, server_folder, msg.server_uid)
};
match res {
ImapActionResult::RetryLater => {
return Status::RetryLater;
@@ -473,7 +478,27 @@ impl Job {
}
}
}
msg.id.delete_from_db(context);
if msg.chat_id.is_trash() || msg.hidden {
// Messages are stored in trash chat only to keep
// their server UID and Message-ID. Once message is
// deleted from the server, database record can be
// removed as well.
//
// Hidden messages are similar to trashed, but are
// related to some chat. We also delete their
// database records.
msg.id.delete_from_db(context);
} else {
// Remove server UID from the database record.
//
// We have either just removed the message from the
// server, in which case UID is not valid anymore, or
// we have more refernces to the same server UID, so
// we remove UID to reduce the number of messages
// pointing to the corresponding UID. Once the counter
// reaches zero, we will remove the message.
job_try!(msg.id.unlink(context));
}
Status::Finished(Ok(()))
} else {
/* eg. device messages have no Message-ID */