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in webmail & webapisrv, store bcc header in sent messages

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when sending a message with bcc's, prepend the bcc header to the message we
store in the sent folder. still not in the message we send to the recipients.
This commit is contained in:
Mechiel Lukkien
2024-04-16 17:57:46 +02:00
parent abd098e8c0
commit c9451d4d06
11 changed files with 42 additions and 11 deletions
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14
webapisrv/server.go
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@ -615,7 +615,7 @@ func (s server) Send(ctx context.Context, req webapi.SendRequest) (resp webapi.S
from, fromPath := froms[0], fromPaths[0]
to, toPaths := xparseAddresses(m.To)
cc, ccPaths := xparseAddresses(m.CC)
_, bccPaths := xparseAddresses(m.BCC)
bcc, bccPaths := xparseAddresses(m.BCC)
recipients := append(append(toPaths, ccPaths...), bccPaths...)
addresses := append(append(m.To, m.CC...), m.BCC...)
@ -714,6 +714,7 @@ func (s server) Send(ctx context.Context, req webapi.SendRequest) (resp webapi.S
}
xc.HeaderAddrs("To", to)
xc.HeaderAddrs("Cc", cc)
// We prepend Bcc headers to the message when adding to the Sent mailbox.
if m.Subject != "" {
xcheckcontrol(m.Subject)
xc.Subject(m.Subject)
@ -1037,6 +1038,17 @@ func (s server) Send(ctx context.Context, req webapi.SendRequest) (resp webapi.S
modseq, err := acc.NextModSeq(tx)
xcheckf(err, "next modseq")
// If there were bcc headers, prepend those to the stored message only, before the
// DKIM signature. The DKIM-signature oversigns the bcc header, so this stored message
// won't validate with DKIM anymore, which is fine.
if len(bcc) > 0 {
var sb strings.Builder
xbcc := message.NewComposer(&sb, 100*1024, smtputf8)
xbcc.HeaderAddrs("Bcc", bcc)
xbcc.Flush()
msgPrefix = sb.String() + msgPrefix
}
sentm := store.Message{
CreateSeq: modseq,
ModSeq: modseq,