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Improve expunged message/UID tracking in IMAP sessions, track synchronization history for mailboxes/annotations.

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Keeping the message files around, and the message details in the database, is
useful for IMAP sessions that haven't seen/processed the removal of a message
yet and try to fetch it. Before, we would return errors. Similarly, a session
that has a mailbox selected that is removed can (at least in theory) still read
messages.

The mechanics to do this need keeping removed mailboxes around too. JMAP needs
that anyway, so we now keep modseq/createseq/expunged history for mailboxes
too. And while we're at it, for annotations as well.

For future JMAP support, we now also keep the mailbox parent id around for a
mailbox, with an upgrade step to set the field for existing mailboxes and
fixing up potential missing parents (which could possibly have happened in an
obscure corner case that I doubt anyone ran into).
This commit is contained in:
Mechiel Lukkien
2025-03-05 17:17:57 +01:00
parent 684c716e4d
commit 577944310c
63 changed files with 1945 additions and 1249 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
imapserver/rename_test.go
View File

@ -12,7 +12,7 @@ func TestRename(t *testing.T) {
defer tc.close()
tc2 := startNoSwitchboard(t)
defer tc2.close()
defer tc2.closeNoWait()
tc.client.Login("mjl@mox.example", password0)
tc2.client.Login("mjl@mox.example", password0)
@ -23,7 +23,9 @@ func TestRename(t *testing.T) {
tc.transactf("no", "rename doesnotexist newbox") // Does not exist.
tc.xcode("NONEXISTENT") // ../rfc/9051:5140
tc.transactf("no", `rename "Sent" "Trash"`) // Already exists.
tc.transactf("no", "rename expungebox newbox") // No longer exists.
tc.xcode("NONEXISTENT")
tc.transactf("no", `rename "Sent" "Trash"`) // Already exists.
tc.xcode("ALREADYEXISTS")
tc.client.Create("x", nil)
@ -70,28 +72,51 @@ func TestRename(t *testing.T) {
tc.client.Unsubscribe("k")
tc.transactf("ok", "rename k/l k/l/m") // With "l" renamed, a new "k" will be created.
tc.transactf("ok", `list "" "k*" return (subscribed)`)
tc.xuntagged(imapclient.UntaggedList{Separator: '/', Mailbox: "k"}, imapclient.UntaggedList{Flags: []string{"\\Subscribed"}, Separator: '/', Mailbox: "k/l"}, imapclient.UntaggedList{Separator: '/', Mailbox: "k/l/m"})
tc.xuntagged(
imapclient.UntaggedList{Separator: '/', Mailbox: "k"},
imapclient.UntaggedList{Flags: []string{"\\Subscribed"}, Separator: '/', Mailbox: "k/l"},
imapclient.UntaggedList{Separator: '/', Mailbox: "k/l/m"},
)
tc.transactf("ok", "rename k/l/m k/l/x/y/m") // k/l/x and k/l/x/y will be created.
tc.transactf("ok", `list "" "k/l/x*" return (subscribed)`)
tc.xuntagged(
imapclient.UntaggedList{Separator: '/', Mailbox: "k/l/x"},
imapclient.UntaggedList{Separator: '/', Mailbox: "k/l/x/y"},
imapclient.UntaggedList{Separator: '/', Mailbox: "k/l/x/y/m"},
)
// Renaming inbox keeps inbox in existence, moves messages, and does not rename children.
tc.transactf("ok", "create inbox/a")
// To check if UIDs are renumbered properly, we add UIDs 1 and 2. Expunge 1,
// keeping only 2. Then rename the inbox, which should renumber UID 2 in the old
// inbox to UID 1 in the newly created mailbox.
tc.transactf("ok", "append inbox (\\deleted) \" 1-Jan-2022 10:10:00 +0100\" {1+}\r\nx")
tc.transactf("ok", "append inbox (label1) \" 1-Jan-2022 10:10:00 +0100\" {1+}\r\nx")
tc.transactf("ok", "append inbox (\\deleted) {1+}\r\nx")
tc.transactf("ok", "append inbox (label1) {1+}\r\nx")
tc.transactf("ok", `select inbox`)
tc.transactf("ok", "expunge")
tc.transactf("ok", "rename inbox minbox")
tc.transactf("ok", `list "" (inbox inbox/a minbox)`)
tc.xuntagged(imapclient.UntaggedList{Separator: '/', Mailbox: "Inbox"}, imapclient.UntaggedList{Separator: '/', Mailbox: "Inbox/a"}, imapclient.UntaggedList{Separator: '/', Mailbox: "minbox"})
tc.transactf("ok", `select minbox`)
tc.transactf("ok", "rename inbox x/minbox")
tc.transactf("ok", `list "" (inbox inbox/a x/minbox)`)
tc.xuntagged(
imapclient.UntaggedList{Separator: '/', Mailbox: "Inbox"},
imapclient.UntaggedList{Separator: '/', Mailbox: "Inbox/a"},
imapclient.UntaggedList{Separator: '/', Mailbox: "x/minbox"},
)
tc.transactf("ok", `select x/minbox`)
tc.transactf("ok", `uid fetch 1:* flags`)
tc.xuntagged(imapclient.UntaggedFetch{Seq: 1, Attrs: []imapclient.FetchAttr{imapclient.FetchUID(1), imapclient.FetchFlags{"label1"}}})
// Renaming to new hiearchy that does not have any subscribes.
tc.transactf("ok", "rename minbox w/w")
tc.transactf("ok", "rename x/minbox w/w")
tc.transactf("ok", `list "" "w*"`)
tc.xuntagged(imapclient.UntaggedList{Separator: '/', Mailbox: "w"}, imapclient.UntaggedList{Separator: '/', Mailbox: "w/w"})
tc.transactf("ok", "rename inbox misc/old/inbox")
tc.transactf("ok", `list "" (misc misc/old/inbox)`)
tc.xuntagged(
imapclient.UntaggedList{Separator: '/', Mailbox: "misc"},
imapclient.UntaggedList{Separator: '/', Mailbox: "misc/old/inbox"},
)
// todo: test create+delete+rename of/to a name results in a higher uidvalidity.
}