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imap: fix no-envelope-for-message error

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Fix the "no envelope available for this message" error that can occur
when using the same imap mailbox in another mailclient (e.g.
through a webmail interface) at the same time.

Complements the fixes in commit 7fe7fe4 ("ui: fix panic in header
formatter") and commit 074b0a1 ("view,list: fix crash when viewing
incomplete imap messages").

The error is caused when a message attribute update is received by the
message store before the message list had a chance to fetch the proper
header first. In this case, an (incomplete) message info is stored in
the message store and the message list will never fetch the correct
header. To prevent this, add only messages to the store with a non-nil
envelope but make sure that message attribute updates are properly
merged.

Signed-off-by: Koni Marti <koni.marti@gmail.com>
Acked-by: Robin Jarry <robin@jarry.cc>
This commit is contained in:
Koni Marti 2022-04-07 23:05:32 +02:00 committed by Robin Jarry
parent e810ae12d7
commit f6e34e4cf1
1 changed files with 3 additions and 1 deletions
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4
lib/msgstore.go
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@ -225,7 +225,9 @@ func (store *MessageStore) Update(msg types.WorkerMessage) {
if existing, ok := store.Messages[msg.Info.Uid]; ok && existing != nil { if existing, ok := store.Messages[msg.Info.Uid]; ok && existing != nil {
merge(existing, msg.Info) merge(existing, msg.Info)
} else { } else {
store.Messages[msg.Info.Uid] = msg.Info if msg.Info.Envelope != nil {
store.Messages[msg.Info.Uid] = msg.Info
}
} }
seen := false seen := false
recent := false recent := false