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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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10
imapserver/parse.go
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@ -575,7 +575,8 @@ func (p *parser) xsectionBinary() (r []uint32) {
var fetchAttWords = []string{
"ENVELOPE", "FLAGS", "INTERNALDATE", "RFC822.SIZE", "BODYSTRUCTURE", "UID", "BODY.PEEK", "BODY", "BINARY.PEEK", "BINARY.SIZE", "BINARY",
"RFC822.HEADER", "RFC822.TEXT", "RFC822", // older IMAP
"MODSEQ", // CONDSTORE extension.
"MODSEQ", // CONDSTORE extension.
"SAVEDATE", // SAVEDATE extension, ../rfc/8514:186
}
// ../rfc/9051:6557 ../rfc/3501:4751 ../rfc/7162:2483
@ -803,7 +804,8 @@ var searchKeyWords = []string{
"SENTBEFORE", "SENTON",
"SENTSINCE", "SMALLER",
"UID", "UNDRAFT",
"MODSEQ", // CONDSTORE extension.
"MODSEQ", // CONDSTORE extension.
"SAVEDBEFORE", "SAVEDON", "SAVEDSINCE", "SAVEDATESUPPORTED", // SAVEDATE extension, ../rfc/8514:203
}
// ../rfc/9051:6923 ../rfc/3501:4957, MODSEQ ../rfc/7162:2492
@ -927,6 +929,10 @@ func (p *parser) xsearchKey() *searchKey {
sk.clientModseq = &v
// MODSEQ is a CONDSTORE-enabling parameter. ../rfc/7162:377
p.conn.enabled[capCondstore] = true
case "SAVEDBEFORE", "SAVEDON", "SAVEDSINCE":
p.xspace()
sk.date = p.xdate() // ../rfc/8514:267
case "SAVEDATESUPPORTED":
default:
p.xerrorf("missing case for op %q", sk.op)
}