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implement imap savedate extension, rfc 8514

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it makes a new field available on stored messages. not when they they were
received (over smtp) or appended to the mailbox (over imap), but when they were
last "saved" in the mailbox. copy/move of a message (eg to the trash) resets
the "savedate" value. this helps implement "remove messages from trash after X
days".
This commit is contained in:
Mechiel Lukkien
2025-02-19 17:11:20 +01:00
parent cbe5bb235c
commit 7288e038e6
16 changed files with 136 additions and 10 deletions
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7
imapserver/server.go
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@ -159,12 +159,13 @@ var authFailDelay = time.Second // After authentication failure.
// STATUS=SIZE: ../rfc/8438 ../rfc/9051:8024
// QUOTA QUOTA=RES-STORAGE: ../rfc/9208:111
// METADATA: ../rfc/5464
// SAVEDATE: ../rfc/8514
//
// We always announce support for SCRAM PLUS-variants, also on connections without
// TLS. The client should not be selecting PLUS variants on non-TLS connections,
// instead opting to do the bare SCRAM variant without indicating the server claims
// to support the PLUS variant (skipping the server downgrade detection check).
const serverCapabilities = "IMAP4rev2 IMAP4rev1 ENABLE LITERAL+ IDLE SASL-IR BINARY UNSELECT UIDPLUS ESEARCH SEARCHRES MOVE UTF8=ACCEPT LIST-EXTENDED SPECIAL-USE LIST-STATUS AUTH=SCRAM-SHA-256-PLUS AUTH=SCRAM-SHA-256 AUTH=SCRAM-SHA-1-PLUS AUTH=SCRAM-SHA-1 AUTH=CRAM-MD5 ID APPENDLIMIT=9223372036854775807 CONDSTORE QRESYNC STATUS=SIZE QUOTA QUOTA=RES-STORAGE METADATA"
const serverCapabilities = "IMAP4rev2 IMAP4rev1 ENABLE LITERAL+ IDLE SASL-IR BINARY UNSELECT UIDPLUS ESEARCH SEARCHRES MOVE UTF8=ACCEPT LIST-EXTENDED SPECIAL-USE LIST-STATUS AUTH=SCRAM-SHA-256-PLUS AUTH=SCRAM-SHA-256 AUTH=SCRAM-SHA-1-PLUS AUTH=SCRAM-SHA-1 AUTH=CRAM-MD5 ID APPENDLIMIT=9223372036854775807 CONDSTORE QRESYNC STATUS=SIZE QUOTA QUOTA=RES-STORAGE METADATA SAVEDATE"
type conn struct {
cid int64
@ -3868,6 +3869,7 @@ func (c *conn) cmdxCopy(isUID bool, tag, cmd string, p *parser) {
conf, _ := c.account.Conf()
mbKeywords := map[string]struct{}{}
now := time.Now()
// Insert new messages into database.
var origMsgIDs, newMsgIDs []int64
@ -3891,6 +3893,7 @@ func (c *conn) cmdxCopy(isUID bool, tag, cmd string, p *parser) {
}
m.TrainedJunk = nil
m.JunkFlagsForMailbox(mbDst, conf)
m.SaveDate = &now
err := tx.Insert(&m)
xcheckf(err, "inserting message")
msgs[uid] = m
@ -4033,6 +4036,7 @@ func (c *conn) cmdxMove(isUID bool, tag, cmd string, p *parser) {
}
keywords := map[string]struct{}{}
now := time.Now()
conf, _ := c.account.Conf()
for i := range msgs {
@ -4061,6 +4065,7 @@ func (c *conn) cmdxMove(isUID bool, tag, cmd string, p *parser) {
m.UID = uidnext
m.ModSeq = modseq
m.JunkFlagsForMailbox(mbDst, conf)
m.SaveDate = &now
uidnext++
err := tx.Update(m)
xcheckf(err, "updating moved message in database")