MBOX-Line: From slusarz at curecanti.org  Thu Jul 23 12:04:30 2015
To: imap-protocol@u.washington.edu
From: Michael M Slusarz <slusarz@curecanti.org>
Date: Fri Jun  8 12:34:55 2018
Subject: [Imap-protocol] Gmail LIST-EXTENDED bug
Message-ID: <20150723130430.Horde.SA97i23HR6ui9hH7OsaY6OS@bigworm.curecanti.org>

A Gmail IMAP protocol bug that was reported to me and has been verified.

Gmail supports LIST-EXTENDED, at least in the account I tested with.   
However, this command fails:

* CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN  
X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE ENABLE MOVE CONDSTORE ESEARCH  
UTF8=ACCEPT LIST-EXTENDED LIST-STATUS
a OK slusarz@gmail.com authenticated (Success)
b LIST () "" (*)
b BAD Could not parse command


This is a legal LIST command if LIST-EXTENDED is available, per RFC 5258:

    list =      "LIST" [SP list-select-opts] SP mailbox SP mbox-or-pat
                [SP list-return-opts]
    list-select-opts =  "(" [
                  (*(list-select-opt SP) list-select-base-opt
                   *(SP list-select-opt))
                / (list-select-independent-opt
                   *(SP list-select-independent-opt))
                ] ")"
                ; Any number of options may be in any order.
                ; If a list-select-mod-opt appears, then a
                ; list-select-base-opt must also appear.
                ; This allows these:
                ; ()
                ; (REMOTE)
                ; (SUBSCRIBED)
                ; (SUBSCRIBED REMOTE)
                ; (SUBSCRIBED RECURSIVEMATCH)
                ; (SUBSCRIBED REMOTE RECURSIVEMATCH)
                ; But does NOT allow these:
                ; (RECURSIVEMATCH)
                ; (REMOTE RECURSIVEMATCH)
    mbox-or-pat =  list-mailbox / patterns
    patterns =  "(" list-mailbox *(SP list-mailbox) ")"


michael


