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; ############################################################################ |
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; Crispin Standards Track [Page 81] |
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; RFC 3501 IMAPv4 March 2003 |
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; |
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; 9. Formal Syntax |
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; |
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; The following syntax specification uses the Augmented Backus-Naur |
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; Form (ABNF) notation as specified in [ABNF]. |
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; |
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; In the case of alternative or optional rules in which a later rule |
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; overlaps an earlier rule, the rule which is listed earlier MUST take |
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; priority. For example, "\Seen" when parsed as a flag is the \Seen |
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; flag name and not a flag-extension, even though "\Seen" can be parsed |
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; as a flag-extension. Some, but not all, instances of this rule are |
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; noted below. |
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; |
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; Note: [ABNF] rules MUST be followed strictly; in |
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; particular: |
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; |
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; (1) Except as noted otherwise, all alphabetic characters |
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; are case-insensitive. The use of upper or lower case |
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; characters to define token strings is for editorial clarity |
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; only. Implementations MUST accept these strings in a |
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; case-insensitive fashion. |
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; |
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; (2) In all cases, SP refers to exactly one space. It is |
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; NOT permitted to substitute TAB, insert additional spaces, |
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; or otherwise treat SP as being equivalent to LWSP. |
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; |
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; (3) The ASCII NUL character, %x00, MUST NOT be used at any |
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; time. |
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address = "(" addr-name SP addr-adl SP addr-mailbox SP |
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addr-host ")" |
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addr-adl = nstring |
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; Holds route from [RFC-2822] route-addr if |
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; non-NIL |
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addr-host = nstring |
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; NIL indicates [RFC-2822] group syntax. |
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; Otherwise, holds [RFC-2822] domain name |
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addr-mailbox = nstring |
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; NIL indicates end of [RFC-2822] group; if |
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; non-NIL and addr-host is NIL, holds |
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; [RFC-2822] group name. |
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; Otherwise, holds [RFC-2822] local-part |
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; after removing [RFC-2822] quoting |
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; Crispin Standards Track [Page 81] |
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; RFC 3501 IMAPv4 March 2003 |
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addr-name = nstring |
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; If non-NIL, holds phrase from [RFC-2822] |
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; mailbox after removing [RFC-2822] quoting |
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append = "APPEND" SP mailbox [SP flag-list] [SP date-time] SP |
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literal |
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astring = 1*ASTRING-CHAR / string |
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ASTRING-CHAR = ATOM-CHAR / resp-specials |
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atom = 1*ATOM-CHAR |
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ATOM-CHAR = <any CHAR except atom-specials> |
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atom-specials = "(" / ")" / "{" / SP / CTL / list-wildcards / |
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quoted-specials / resp-specials |
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authenticate = "AUTHENTICATE" SP auth-type *(CRLF base64) |
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auth-type = atom |
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; Defined by [SASL] |
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base64 = *(4base64-char) [base64-terminal] |
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base64-char = ALPHA / DIGIT / "+" / "/" |
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; Case-sensitive |
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base64-terminal = (2base64-char "==") / (3base64-char "=") |
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body = "(" (body-type-1part / body-type-mpart) ")" |
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body-extension = nstring / number / |
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"(" body-extension *(SP body-extension) ")" |
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; Future expansion. Client implementations |
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; MUST accept body-extension fields. Server |
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; implementations MUST NOT generate |
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; body-extension fields except as defined by |
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; future standard or standards-track |
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; revisions of this specification. |
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body-ext-1part = body-fld-md5 [SP body-fld-dsp [SP body-fld-lang |
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[SP body-fld-loc *(SP body-extension)]]] |
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; MUST NOT be returned on non-extensible |
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; "BODY" fetch |
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; Crispin Standards Track [Page 82] |
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; RFC 3501 IMAPv4 March 2003 |
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body-ext-mpart = body-fld-param [SP body-fld-dsp [SP body-fld-lang |
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[SP body-fld-loc *(SP body-extension)]]] |
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; MUST NOT be returned on non-extensible |
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; "BODY" fetch |
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body-fields = body-fld-param SP body-fld-id SP body-fld-desc SP |
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body-fld-enc SP body-fld-octets |
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body-fld-desc = nstring |
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body-fld-dsp = "(" string SP body-fld-param ")" / nil |
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body-fld-enc = (DQUOTE ("7BIT" / "8BIT" / "BINARY" / "BASE64"/ |
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"QUOTED-PRINTABLE") DQUOTE) / string |
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body-fld-id = nstring |
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body-fld-lang = nstring / "(" string *(SP string) ")" |
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body-fld-loc = nstring |
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body-fld-lines = number |
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body-fld-md5 = nstring |
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body-fld-octets = number |
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body-fld-param = "(" string SP string *(SP string SP string) ")" / nil |
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body-type-1part = (body-type-basic / body-type-msg / body-type-text) |
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[SP body-ext-1part] |
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body-type-basic = media-basic SP body-fields |
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; MESSAGE subtype MUST NOT be "RFC822" |
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body-type-mpart = 1*body SP media-subtype |
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[SP body-ext-mpart] |
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body-type-msg = media-message SP body-fields SP envelope |
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SP body SP body-fld-lines |
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body-type-text = media-text SP body-fields SP body-fld-lines |
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capability = ("AUTH=" auth-type) / atom |
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; New capabilities MUST begin with "X" or be |
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; registered with IANA as standard or |
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; standards-track |
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; Crispin Standards Track [Page 83] |
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; RFC 3501 IMAPv4 March 2003 |
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capability-data = "CAPABILITY" *(SP capability) SP "IMAP4rev1" |
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*(SP capability) |
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; Servers MUST implement the STARTTLS, AUTH=PLAIN, |
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; and LOGINDISABLED capabilities |
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; Servers which offer RFC 1730 compatibility MUST |
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; list "IMAP4" as the first capability. |
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CHAR8 = %x01-ff |
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; any OCTET except NUL, %x00 |
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command = tag SP (command-any / command-auth / command-nonauth / |
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command-select) CRLF |
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; Modal based on state |
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command-any = "CAPABILITY" / "LOGOUT" / "NOOP" / x-command |
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; Valid in all states |
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command-auth = append / create / delete / examine / list / lsub / |
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rename / select / status / subscribe / unsubscribe |
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; Valid only in Authenticated or Selected state |
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command-nonauth = login / authenticate / "STARTTLS" |
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; Valid only when in Not Authenticated state |
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command-select = "CHECK" / "CLOSE" / "EXPUNGE" / copy / fetch / store / |
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uid / search |
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; Valid only when in Selected state |
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continue-req = "+" SP (resp-text / base64) CRLF |
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copy = "COPY" SP sequence-set SP mailbox |
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create = "CREATE" SP mailbox |
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; Use of INBOX gives a NO error |
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date = date-text / DQUOTE date-text DQUOTE |
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date-day = 1*2DIGIT |
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; Day of month |
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date-day-fixed = (SP DIGIT) / 2DIGIT |
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; Fixed-format version of date-day |
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date-month = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / |
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"Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec" |
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date-text = date-day "-" date-month "-" date-year |
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; Crispin Standards Track [Page 84] |
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; RFC 3501 IMAPv4 March 2003 |
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date-year = 4DIGIT |
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date-time = DQUOTE date-day-fixed "-" date-month "-" date-year |
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SP time SP zone DQUOTE |
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delete = "DELETE" SP mailbox |
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; Use of INBOX gives a NO error |
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digit-nz = %x31-39 |
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; 1-9 |
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envelope = "(" env-date SP env-subject SP env-from SP |
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env-sender SP env-reply-to SP env-to SP env-cc SP |
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env-bcc SP env-in-reply-to SP env-message-id ")" |
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env-bcc = "(" 1*address ")" / nil |
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env-cc = "(" 1*address ")" / nil |
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env-date = nstring |
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env-from = "(" 1*address ")" / nil |
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env-in-reply-to = nstring |
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env-message-id = nstring |
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env-reply-to = "(" 1*address ")" / nil |
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env-sender = "(" 1*address ")" / nil |
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env-subject = nstring |
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env-to = "(" 1*address ")" / nil |
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examine = "EXAMINE" SP mailbox |
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fetch = "FETCH" SP sequence-set SP ("ALL" / "FULL" / "FAST" / |
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fetch-att / "(" fetch-att *(SP fetch-att) ")") |
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fetch-att = "ENVELOPE" / "FLAGS" / "INTERNALDATE" / |
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"RFC822" [".HEADER" / ".SIZE" / ".TEXT"] / |
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"BODY" ["STRUCTURE"] / "UID" / |
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"BODY" section ["<" number "." nz-number ">"] / |
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"BODY.PEEK" section ["<" number "." nz-number ">"] |
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; Crispin Standards Track [Page 85] |
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; RFC 3501 IMAPv4 March 2003 |
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flag = "\Answered" / "\Flagged" / "\Deleted" / |
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"\Seen" / "\Draft" / flag-keyword / flag-extension |
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; Does not include "\Recent" |
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flag-extension = "\" atom |
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; Future expansion. Client implementations |
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; MUST accept flag-extension flags. Server |
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; implementations MUST NOT generate |
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; flag-extension flags except as defined by |
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; future standard or standards-track |
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; revisions of this specification. |
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flag-fetch = flag / "\Recent" |
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flag-keyword = atom |
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flag-list = "(" [flag *(SP flag)] ")" |
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flag-perm = flag / "\*" |
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greeting = "*" SP (resp-cond-auth / resp-cond-bye) CRLF |
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header-fld-name = astring |
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header-list = "(" header-fld-name *(SP header-fld-name) ")" |
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list = "LIST" SP mailbox SP list-mailbox |
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list-mailbox = 1*list-char / string |
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list-char = ATOM-CHAR / list-wildcards / resp-specials |
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list-wildcards = "%" / "*" |
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literal = "{" number "}" CRLF *CHAR8 |
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; Number represents the number of CHAR8s |
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login = "LOGIN" SP userid SP password |
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lsub = "LSUB" SP mailbox SP list-mailbox |
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; Crispin Standards Track [Page 86] |
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; RFC 3501 IMAPv4 March 2003 |
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mailbox = "INBOX" / astring |
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; INBOX is case-insensitive. All case variants of |
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; INBOX (e.g., "iNbOx") MUST be interpreted as INBOX |
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; not as an astring. An astring which consists of |
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; the case-insensitive sequence "I" "N" "B" "O" "X" |
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; is considered to be INBOX and not an astring. |
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; Refer to section 5.1 for further |
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; semantic details of mailbox names. |
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mailbox-data = "FLAGS" SP flag-list / "LIST" SP mailbox-list / |
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"LSUB" SP mailbox-list / "SEARCH" *(SP nz-number) / |
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"STATUS" SP mailbox SP "(" [status-att-list] ")" / |
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number SP "EXISTS" / number SP "RECENT" |
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mailbox-list = "(" [mbx-list-flags] ")" SP |
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(DQUOTE QUOTED-CHAR DQUOTE / nil) SP mailbox |
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mbx-list-flags = *(mbx-list-oflag SP) mbx-list-sflag |
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*(SP mbx-list-oflag) / |
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mbx-list-oflag *(SP mbx-list-oflag) |
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mbx-list-oflag = "\Noinferiors" / flag-extension |
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; Other flags; multiple possible per LIST response |
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mbx-list-sflag = "\Noselect" / "\Marked" / "\Unmarked" |
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; Selectability flags; only one per LIST response |
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media-basic = ((DQUOTE ("APPLICATION" / "AUDIO" / "IMAGE" / |
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"MESSAGE" / "VIDEO") DQUOTE) / string) SP |
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media-subtype |
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; Defined in [MIME-IMT] |
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media-message = DQUOTE "MESSAGE" DQUOTE SP DQUOTE "RFC822" DQUOTE |
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; Defined in [MIME-IMT] |
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media-subtype = string |
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; Defined in [MIME-IMT] |
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media-text = DQUOTE "TEXT" DQUOTE SP media-subtype |
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; Defined in [MIME-IMT] |
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message-data = nz-number SP ("EXPUNGE" / ("FETCH" SP msg-att)) |
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msg-att = "(" (msg-att-dynamic / msg-att-static) |
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*(SP (msg-att-dynamic / msg-att-static)) ")" |
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msg-att-dynamic = "FLAGS" SP "(" [flag-fetch *(SP flag-fetch)] ")" |
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; MAY change for a message |
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; Crispin Standards Track [Page 87] |
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; RFC 3501 IMAPv4 March 2003 |
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msg-att-static = "ENVELOPE" SP envelope / "INTERNALDATE" SP date-time / |
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"RFC822" [".HEADER" / ".TEXT"] SP nstring / |
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"RFC822.SIZE" SP number / |
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"BODY" ["STRUCTURE"] SP body / |
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"BODY" section ["<" number ">"] SP nstring / |
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"UID" SP uniqueid |
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; MUST NOT change for a message |
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nil = "NIL" |
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nstring = string / nil |
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number = 1*DIGIT |
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; Unsigned 32-bit integer |
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; (0 <= n < 4,294,967,296) |
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nz-number = digit-nz *DIGIT |
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; Non-zero unsigned 32-bit integer |
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; (0 < n < 4,294,967,296) |
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password = astring |
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quoted = DQUOTE *QUOTED-CHAR DQUOTE |
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QUOTED-CHAR = <any TEXT-CHAR except quoted-specials> / |
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"\" quoted-specials |
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quoted-specials = DQUOTE / "\" |
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rename = "RENAME" SP mailbox SP mailbox |
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; Use of INBOX as a destination gives a NO error |
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response = *(continue-req / response-data) response-done |
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response-data = "*" SP (resp-cond-state / resp-cond-bye / |
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mailbox-data / message-data / capability-data) CRLF |
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response-done = response-tagged / response-fatal |
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response-fatal = "*" SP resp-cond-bye CRLF |
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; Server closes connection immediately |
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response-tagged = tag SP resp-cond-state CRLF |
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resp-cond-auth = ("OK" / "PREAUTH") SP resp-text |
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; Authentication condition |
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; Crispin Standards Track [Page 88] |
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; RFC 3501 IMAPv4 March 2003 |
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resp-cond-bye = "BYE" SP resp-text |
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resp-cond-state = ("OK" / "NO" / "BAD") SP resp-text |
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; Status condition |
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resp-specials = "]" |
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resp-text = ["[" resp-text-code "]" SP] text |
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resp-text-code = "ALERT" / |
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"BADCHARSET" [SP "(" astring *(SP astring) ")" ] / |
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capability-data / "PARSE" / |
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"PERMANENTFLAGS" SP "(" |
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[flag-perm *(SP flag-perm)] ")" / |
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"READ-ONLY" / "READ-WRITE" / "TRYCREATE" / |
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"UIDNEXT" SP nz-number / "UIDVALIDITY" SP nz-number / |
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"UNSEEN" SP nz-number / |
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atom [SP 1*<any TEXT-CHAR except "]">] |
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search = "SEARCH" [SP "CHARSET" SP astring] 1*(SP search-key) |
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; CHARSET argument to MUST be registered with IANA |
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search-key = "ALL" / "ANSWERED" / "BCC" SP astring / |
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"BEFORE" SP date / "BODY" SP astring / |
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"CC" SP astring / "DELETED" / "FLAGGED" / |
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"FROM" SP astring / "KEYWORD" SP flag-keyword / |
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"NEW" / "OLD" / "ON" SP date / "RECENT" / "SEEN" / |
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"SINCE" SP date / "SUBJECT" SP astring / |
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"TEXT" SP astring / "TO" SP astring / |
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"UNANSWERED" / "UNDELETED" / "UNFLAGGED" / |
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"UNKEYWORD" SP flag-keyword / "UNSEEN" / |
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; Above this line were in [IMAP2] |
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"DRAFT" / "HEADER" SP header-fld-name SP astring / |
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"LARGER" SP number / "NOT" SP search-key / |
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"OR" SP search-key SP search-key / |
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"SENTBEFORE" SP date / "SENTON" SP date / |
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"SENTSINCE" SP date / "SMALLER" SP number / |
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"UID" SP sequence-set / "UNDRAFT" / sequence-set / |
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"(" search-key *(SP search-key) ")" |
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section = "[" [section-spec] "]" |
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section-msgtext = "HEADER" / "HEADER.FIELDS" [".NOT"] SP header-list / |
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"TEXT" |
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; top-level or MESSAGE/RFC822 part |
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section-part = nz-number *("." nz-number) |
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; body part nesting |
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; Crispin Standards Track [Page 89] |
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; RFC 3501 IMAPv4 March 2003 |
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section-spec = section-msgtext / (section-part ["." section-text]) |
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section-text = section-msgtext / "MIME" |
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; text other than actual body part (headers, etc.) |
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select = "SELECT" SP mailbox |
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seq-number = nz-number / "*" |
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; message sequence number (COPY, FETCH, STORE |
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; commands) or unique identifier (UID COPY, |
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; UID FETCH, UID STORE commands). |
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; * represents the largest number in use. In |
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; the case of message sequence numbers, it is |
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; the number of messages in a non-empty mailbox. |
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; In the case of unique identifiers, it is the |
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; unique identifier of the last message in the |
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; mailbox or, if the mailbox is empty, the |
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; mailbox's current UIDNEXT value. |
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; The server should respond with a tagged BAD |
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; response to a command that uses a message |
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; sequence number greater than the number of |
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; messages in the selected mailbox. This |
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; includes "*" if the selected mailbox is empty. |
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seq-range = seq-number ":" seq-number |
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; two seq-number values and all values between |
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; these two regardless of order. |
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; Example: 2:4 and 4:2 are equivalent and indicate |
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; values 2, 3, and 4. |
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; Example: a unique identifier sequence range of |
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; 3291:* includes the UID of the last message in |
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; the mailbox, even if that value is less than 3291. |
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sequence-set = (seq-number / seq-range) *("," sequence-set) |
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; set of seq-number values, regardless of order. |
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; Servers MAY coalesce overlaps and/or execute the |
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; sequence in any order. |
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; Example: a message sequence number set of |
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; 2,4:7,9,12:* for a mailbox with 15 messages is |
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; equivalent to 2,4,5,6,7,9,12,13,14,15 |
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; Example: a message sequence number set of *:4,5:7 |
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; for a mailbox with 10 messages is equivalent to |
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; 10,9,8,7,6,5,4,5,6,7 and MAY be reordered and |
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; overlap coalesced to be 4,5,6,7,8,9,10. |
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status = "STATUS" SP mailbox SP |
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"(" status-att *(SP status-att) ")" |
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; Crispin Standards Track [Page 90] |
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; RFC 3501 IMAPv4 March 2003 |
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status-att = "MESSAGES" / "RECENT" / "UIDNEXT" / "UIDVALIDITY" / |
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"UNSEEN" |
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status-att-list = status-att SP number *(SP status-att SP number) |
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store = "STORE" SP sequence-set SP store-att-flags |
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store-att-flags = (["+" / "-"] "FLAGS" [".SILENT"]) SP |
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(flag-list / (flag *(SP flag))) |
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string = quoted / literal |
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subscribe = "SUBSCRIBE" SP mailbox |
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tag = 1*<any ASTRING-CHAR except "+"> |
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text = 1*TEXT-CHAR |
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TEXT-CHAR = <any CHAR except CR and LF> |
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time = 2DIGIT ":" 2DIGIT ":" 2DIGIT |
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; Hours minutes seconds |
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uid = "UID" SP (copy / fetch / search / store) |
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; Unique identifiers used instead of message |
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; sequence numbers |
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uniqueid = nz-number |
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; Strictly ascending |
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unsubscribe = "UNSUBSCRIBE" SP mailbox |
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userid = astring |
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x-command = "X" atom <experimental command arguments> |
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zone = ("+" / "-") 4DIGIT |
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; Signed four-digit value of hhmm representing |
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; hours and minutes east of Greenwich (that is, |
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; the amount that the given time differs from |
|
; Universal Time). Subtracting the timezone |
|
; from the given time will give the UT form. |
|
; The Universal Time zone is "+0000". |
|
|
|
|
|
; ############################################################################ |
|
; RFC3501 Errata |
|
; Source of RFC: IETF - NON WORKING GROUP |
|
; Area Assignment: app |
|
; |
|
; Errata ID: 261 |
|
; Status: Verified |
|
; Type: Technical |
|
; Publication Format(s) : TEXT |
|
; Reported By: Mark Crispin |
|
; Date Reported: 2007-06-13 |
|
|
|
; Formal Syntax, Page 84: |
|
; old: |
|
CHAR8 = %x01-ff |
|
; any OCTET except NUL, %x00 |
|
|
|
; new: |
|
CHAR8 = %x01-ff |
|
; any OCTET except NUL, %x00 |
|
|
|
charset = atom / quoted |
|
|
|
; ----- |
|
; Formal Syntax, Page 89: |
|
; old: |
|
resp-text-code = "ALERT" / |
|
"BADCHARSET" [SP "(" astring *(SP astring) ")" ] / |
|
|
|
; new: |
|
resp-text-code = "ALERT" / |
|
"BADCHARSET" [SP "(" charset *(SP charset) ")" ] / |
|
|
|
; ----- |
|
; Formal Syntax, Page 89: |
|
; old: |
|
search = "SEARCH" [SP "CHARSET" SP astring] 1*(SP search-key) |
|
|
|
; new: |
|
search = "SEARCH" [SP "CHARSET" SP charset] 1*(SP search-key) |
|
|
|
; ----- |
|
; Formal Syntax, Page 90: |
|
; old: |
|
sequence-set = (seq-number / seq-range) *("," sequence-set) |
|
|
|
; new: |
|
sequence-set = (seq-number / seq-range) ["," sequence-set] |
|
|
|
; ----- |
|
; Formal Syntax, Page 90: |
|
; old: |
|
status-att-list = status-att SP number *(SP status-att SP number) |
|
|
|
; new: |
|
status-att-val = ("MESSAGES" SP number) / ("RECENT" SP number) / |
|
("UIDNEXT" SP nz-number) / ("UIDVALIDITY" SP nz-number) / |
|
("UNSEEN" SP number) |
|
|
|
status-att-list = status-att-val *(SP status-att-val) |
|
|
|
|
|
; ############################################################################ |
|
; Crocker & Overell Standards Track [Page 12] |
|
; RFC 5234 ABNF January 2008 |
|
; |
|
; ... |
|
; |
|
; Appendix B. Core ABNF of ABNF |
|
; |
|
; This appendix contains some basic rules that are in common use. |
|
; Basic rules are in uppercase. Note that these rules are only valid |
|
; for ABNF encoded in 7-bit ASCII or in characters sets that are a |
|
; superset of 7-bit ASCII. |
|
; |
|
; B.1. Core Rules |
|
; |
|
; Certain basic rules are in uppercase, such as SP, HTAB, CRLF, DIGIT, |
|
; ALPHA, etc. |
|
|
|
ALPHA = %x41-5A / %x61-7A ; A-Z / a-z |
|
|
|
BIT = "0" / "1" |
|
|
|
CHAR = %x01-7F |
|
; any 7-bit US-ASCII character, |
|
; excluding NUL |
|
|
|
|
|
; Crocker & Overell Standards Track [Page 13] |
|
; RFC 5234 ABNF January 2008 |
|
|
|
|
|
CR = %x0D |
|
; carriage return |
|
|
|
CRLF = CR LF |
|
; Internet standard newline |
|
|
|
CTL = %x00-1F / %x7F |
|
; controls |
|
|
|
DIGIT = %x30-39 |
|
; 0-9 |
|
|
|
DQUOTE = %x22 |
|
; " (Double Quote) |
|
|
|
HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F" |
|
|
|
HTAB = %x09 |
|
; horizontal tab |
|
|
|
LF = %x0A |
|
; linefeed |
|
|
|
LWSP = *(WSP / CRLF WSP) |
|
; Use of this linear-white-space rule |
|
; permits lines containing only white |
|
; space that are no longer legal in |
|
; mail headers and have caused |
|
; interoperability problems in other |
|
; contexts. |
|
; Do not use when defining mail |
|
; headers and use with caution in |
|
; other contexts. |
|
|
|
OCTET = %x00-FF |
|
; 8 bits of data |
|
|
|
SP = %x20 |
|
|
|
VCHAR = %x21-7E |
|
; visible (printing) characters |
|
|
|
WSP = SP / HTAB |
|
; white space |
|
|
|
|
|
; ############################################################################ |
|
; Myers Standards Track [Page 3] |
|
; RFC 2087 QUOTA January 1997 |
|
; |
|
; ... |
|
; |
|
; 6. Formal syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) notation as specified in RFC 822 with one exception; the |
|
; delimiter used with the "#" construct is a single space (SP) and not |
|
; one or more commas. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
; |
|
; |
|
; Myers Standards Track [Page 4] |
|
; RFC 2087 QUOTA January 1997 |
|
|
|
|
|
getquota ::= "GETQUOTA" SP astring |
|
|
|
getquotaroot ::= "GETQUOTAROOT" SP astring |
|
|
|
quota_list ::= "(" #quota_resource ")" |
|
|
|
quota_resource ::= atom SP number SP number |
|
|
|
quota_response ::= "QUOTA" SP astring SP quota_list |
|
|
|
quotaroot_response |
|
::= "QUOTAROOT" SP astring *(SP astring) |
|
|
|
setquota ::= "SETQUOTA" SP astring SP setquota_list |
|
|
|
setquota_list ::= "(" 0#setquota_resource ")" |
|
|
|
setquota_resource ::= atom SP number |
|
|
|
|
|
; ############################################################################ |
|
; RFC 7888 Obsoletes RFC 2088 (1997) |
|
; |
|
; Melnikov Standards Track [Page 5] |
|
; RFC 7888 IMAP4 Non-synchronizing Literals May 2016 |
|
; |
|
; ... |
|
; |
|
; 8. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [RFC3501]. |
|
|
|
literal = "{" number ["+"] "}" CRLF *CHAR8 |
|
; Number represents the number of CHAR8 octets |
|
|
|
CHAR8 = <defined in RFC 3501> |
|
|
|
literal8 = <defined in RFC 4466> |
|
|
|
|
|
; ############################################################################ |
|
; Leiba Standards Track [Page 2] |
|
; RFC 2177 IMAP4 IDLE command June 1997 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) notation as specified in [RFC-822] as modified by [IMAP4]. |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [IMAP4]. |
|
|
|
command_auth ::= append / create / delete / examine / list / lsub / |
|
rename / select / status / subscribe / unsubscribe |
|
/ idle |
|
;; Valid only in Authenticated or Selected state |
|
|
|
idle ::= "IDLE" CRLF "DONE" |
|
|
|
|
|
; ############################################################################ |
|
; RFC 5092 Obsoletes RFC 2192 (1997) |
|
; |
|
; Melnikov & Newman Standards Track [Page 16] |
|
; RFC 5092 IMAP URL Scheme November 2007 |
|
; |
|
; ... |
|
; |
|
; 11. ABNF for IMAP URL Scheme |
|
; |
|
; Formal syntax is defined using ABNF [ABNF], extending the ABNF rules |
|
; in Section 9 of [IMAP4]. Elements not defined here can be found in |
|
; [ABNF], [IMAP4], [IMAPABNF], or [URI-GEN]. Strings are not case |
|
; sensitive, and free insertion of linear white space is not permitted. |
|
|
|
sub-delims-sh = "!" / "$" / "'" / "(" / ")" / |
|
"*" / "+" / "," |
|
;; Same as [URI-GEN] sub-delims, |
|
;; but without ";", "&" and "=". |
|
|
|
uchar = unreserved / sub-delims-sh / pct-encoded |
|
|
|
achar = uchar / "&" / "=" |
|
;; Same as [URI-GEN] 'unreserved / sub-delims / |
|
;; pct-encoded', but ";" is disallowed. |
|
|
|
bchar = achar / ":" / "@" / "/" |
|
|
|
|
|
|
|
; Melnikov & Newman Standards Track [Page 17] |
|
; RFC 5092 IMAP URL Scheme November 2007 |
|
|
|
|
|
enc-auth-type = 1*achar |
|
; %-encoded version of [IMAP4] "auth-type" |
|
|
|
enc-mailbox = 1*bchar |
|
; %-encoded version of [IMAP4] "mailbox" |
|
|
|
enc-search = 1*bchar |
|
; %-encoded version of [IMAPABNF] |
|
; "search-program". Note that IMAP4 |
|
; literals may not be used in |
|
; a "search-program", i.e., only |
|
; quoted or non-synchronizing |
|
; literals (if the server supports |
|
; LITERAL+ [LITERAL+]) are allowed. |
|
|
|
enc-section = 1*bchar |
|
; %-encoded version of [IMAP4] "section-spec" |
|
|
|
enc-user = 1*achar |
|
; %-encoded version of [IMAP4] authorization |
|
; identity or "userid". |
|
|
|
imapurl = "imap://" iserver ipath-query |
|
; Defines an absolute IMAP URL |
|
|
|
ipath-query = ["/" [ icommand ]] |
|
; Corresponds to "path-abempty [ "?" query ]" |
|
; in [URI-GEN] |
|
|
|
; Generic syntax for relative URLs is defined in Section 4.2 of |
|
; [URI-GEN]. For ease of implementation, the relative IMAP URL syntax |
|
; is defined below: |
|
|
|
imapurl-rel = inetwork-path |
|
|
|
/ iabsolute-path |
|
/ irelative-path |
|
/ ipath-empty |
|
|
|
inetwork-path = "//" iserver ipath-query |
|
; Corresponds to '"//" authority path-abempty |
|
; [ "?" query ]' in [URI-GEN] |
|
|
|
iabsolute-path = "/" [ icommand ] |
|
; icommand, if present, MUST NOT start with '/'. |
|
; |
|
; Corresponds to 'path-absolute [ "?" query ]' |
|
; in [URI-GEN] |
|
|
|
|
|
; Melnikov & Newman Standards Track [Page 18] |
|
; RFC 5092 IMAP URL Scheme November 2007 |
|
|
|
|
|
irelative-path = imessagelist / |
|
imsg-or-part |
|
; Corresponds to 'path-noscheme [ "?" query ]' |
|
; in [URI-GEN] |
|
|
|
imsg-or-part = ( imailbox-ref "/" iuid-only ["/" isection-only] |
|
["/" ipartial-only] ) / |
|
( iuid-only ["/" isection-only] |
|
["/" ipartial-only] ) / |
|
( isection-only ["/" ipartial-only] ) / |
|
ipartial-only |
|
|
|
ipath-empty = 0<pchar> |
|
; Zero characters. |
|
; The same-document reference. |
|
|
|
; The following three rules are only used in the presence of the IMAP |
|
; [URLAUTH] extension: |
|
|
|
authimapurl = "imap://" iserver "/" imessagepart |
|
; Same as "imapurl" when "[icommand]" is |
|
; "imessagepart" |
|
|
|
authimapurlfull = authimapurl iurlauth |
|
; Same as "imapurl" when "[icommand]" is |
|
; "imessagepart iurlauth" |
|
|
|
authimapurlrump = authimapurl iurlauth-rump |
|
|
|
|
|
enc-urlauth = 32*HEXDIG |
|
|
|
iurlauth = iurlauth-rump iua-verifier |
|
|
|
iua-verifier = ":" uauth-mechanism ":" enc-urlauth |
|
|
|
iurlauth-rump = [expire] ";URLAUTH=" access |
|
|
|
access = ("submit+" enc-user) / ("user+" enc-user) / |
|
"authuser" / "anonymous" |
|
|
|
expire = ";EXPIRE=" date-time |
|
; date-time is defined in [DATETIME] |
|
|
|
uauth-mechanism = "INTERNAL" / 1*(ALPHA / DIGIT / "-" / ".") |
|
; Case-insensitive. |
|
; New mechanisms MUST be registered with IANA. |
|
|
|
|
|
; Melnikov & Newman Standards Track [Page 19] |
|
; RFC 5092 IMAP URL Scheme November 2007 |
|
|
|
|
|
iauth = ";AUTH=" ( "*" / enc-auth-type ) |
|
|
|
icommand = imessagelist / |
|
imessagepart [iurlauth] |
|
|
|
imailbox-ref = enc-mailbox [uidvalidity] |
|
|
|
imessagelist = imailbox-ref [ "?" enc-search ] |
|
; "enc-search" is [URI-GEN] "query". |
|
|
|
imessagepart = imailbox-ref iuid [isection] [ipartial] |
|
|
|
ipartial = "/" ipartial-only |
|
|
|
ipartial-only = ";PARTIAL=" partial-range |
|
|
|
isection = "/" isection-only |
|
|
|
isection-only = ";SECTION=" enc-section |
|
|
|
iserver = [iuserinfo "@"] host [ ":" port ] |
|
; This is the same as "authority" defined |
|
; in [URI-GEN]. See [URI-GEN] for "host" |
|
; and "port" definitions. |
|
|
|
iuid = "/" iuid-only |
|
|
|
iuid-only = ";UID=" nz-number |
|
; See [IMAP4] for "nz-number" definition |
|
|
|
iuserinfo = enc-user [iauth] / [enc-user] iauth |
|
; conforms to the generic syntax of |
|
; "userinfo" as defined in [URI-GEN]. |
|
|
|
partial-range = number ["." nz-number] |
|
; partial FETCH. The first number is |
|
; the offset of the first byte, |
|
; the second number is the length of |
|
; the fragment. |
|
|
|
uidvalidity = ";UIDVALIDITY=" nz-number |
|
; See [IMAP4] for "nz-number" definition |
|
|
|
|
|
; ############################################################################ |
|
; Gahrns Standards Track [Page 6] |
|
; RFC 2193 IMAP4 Mailbox Referrals September 1997 |
|
; |
|
; ... |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [ABNF]. |
|
|
|
list_mailbox = <list_mailbox> as defined in [RFC-2060] |
|
|
|
mailbox = <mailbox> as defined in [RFC-2060] |
|
|
|
mailbox_referral = <tag> SPACE "NO" SPACE |
|
<referral_response_code> (text / text_mime2) |
|
; See [RFC-2060] for <tag>, text and text_mime2 definition |
|
|
|
|
|
; Gahrns Standards Track [Page 7] |
|
; RFC 2193 IMAP4 Mailbox Referrals September 1997 |
|
|
|
|
|
referral_response_code = "[" "REFERRAL" 1*(SPACE <url>) "]" |
|
; See [RFC-1738] for <url> definition |
|
|
|
rlist = "RLIST" SPACE mailbox SPACE list_mailbox |
|
|
|
rlsub = "RLSUB" SPACE mailbox SPACE list_mailbox |
|
|
|
|
|
; ############################################################################ |
|
; Gahrns & Newman Standards Track [Page 7] |
|
; RFC 2342 IMAP4 Namespace May 1998 |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [ABNF]. |
|
|
|
atom = <atom> |
|
; <atom> as defined in [RFC-2060] |
|
|
|
Namespace = nil / "(" 1*( "(" string SP (<"> QUOTED_CHAR <"> / |
|
nil) *(Namespace_Response_Extension) ")" ) ")" |
|
|
|
Namespace_Command = "NAMESPACE" |
|
|
|
Namespace_Response_Extension = SP string SP "(" string *(SP string) |
|
")" |
|
|
|
Namespace_Response = "*" SP "NAMESPACE" SP Namespace SP Namespace SP |
|
Namespace |
|
; The first Namespace is the Personal Namespace(s) |
|
; The second Namespace is the Other Users' Namespace(s) |
|
; The third Namespace is the Shared Namespace(s) |
|
|
|
nil = <nil> |
|
; <nil> as defined in [RFC-2060] |
|
|
|
QUOTED_CHAR = <QUOTED_CHAR> |
|
; <QUOTED_CHAR> as defined in [RFC-2060] |
|
|
|
string = <string> |
|
; <string> as defined in [RFC-2060] |
|
; Note that the namespace prefix is to a mailbox and following |
|
; IMAP4 convention, any international string in the NAMESPACE |
|
; response MUST be of modified UTF-7 format as described in |
|
; [RFC-2060]. |
|
|
|
; ############################################################################ |
|
; Showalter Standards Track [Page 4] |
|
; RFC 2971 IMAP4 ID extension October 2000 |
|
; |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; This syntax is intended to augment the grammar specified in |
|
; [IMAP4rev1] in order to provide for the ID command. This |
|
; specification uses the augmented Backus-Naur Form (BNF) notation as |
|
; used in [IMAP4rev1]. |
|
|
|
command_any ::= "CAPABILITY" / "LOGOUT" / "NOOP" / x_command / id |
|
;; adds id command to command_any in [IMAP4rev1] |
|
|
|
id ::= "ID" SPACE id_params_list |
|
|
|
id_response ::= "ID" SPACE id_params_list |
|
|
|
id_params_list ::= "(" #(string SPACE nstring) ")" / nil |
|
;; list of field value pairs |
|
|
|
response_data ::= "*" SPACE (resp_cond_state / resp_cond_bye / |
|
mailbox_data / message_data / capability_data / id_response) |
|
|
|
; ############################################################################ |
|
; Crispin Standards Track [Page 3] |
|
; RFC 3502 IMAP MULTIAPPEND March 2003 |
|
; |
|
; ... |
|
; |
|
; Modification to IMAP4rev1 Base Protocol Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
|
|
append = "APPEND" SP mailbox 1*append-message |
|
|
|
append-message = [SP flag-list] [SP date-time] SP literal |
|
|
|
|
|
; Crispin Standards Track [Page 4] |
|
; RFC 3502 IMAP MULTIAPPEND March 2003 |
|
; |
|
; |
|
; MULTIAPPEND Interaction with UIDPLUS Extension |
|
; |
|
; Servers which support both MULTIAPPEND and [UIDPLUS] will have the |
|
; "resp-code-apnd" rule modified as follows: |
|
|
|
resp-code-apnd = "APPENDUID" SP nz-number SP set |
|
|
|
; That is, the APPENDUID response code returns as many UIDs as there |
|
; were messages appended in the multiple append. The UIDs returned |
|
; should be in the order the articles where appended. The message set |
|
; may not contain extraneous UIDs or the symbol "*". |
|
|
|
|
|
; ############################################################################ |
|
; Melnikov Standards Track [Page 6] |
|
; RFC 3503 MDN profile for IMAP March 2003 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) notation as specified in [RFC-822], as modified by |
|
; [IMAP4]. Non-terminals referenced, but not defined below, are as |
|
; defined by [IMAP4]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
flag_keyword ::= "$MDNSent" / other_keywords |
|
|
|
other_keywords ::= atom |
|
|
|
; ############################################################################ |
|
; Nerenberg Standards Track [Page 4] |
|
; RFC 3516 IMAP4 Binary Content Extension April 2003 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Protocol Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (ABNF) notation as used in [ABNF], and incorporates by reference |
|
; the Core Rules defined in that document. |
|
; |
|
; This syntax augments the grammar specified in [IMAP4rev1]. |
|
|
|
append =/ "APPEND" SP mailbox [SP flag-list] |
|
[SP date-time] SP literal8 |
|
|
|
fetch-att =/ "BINARY" [".PEEK"] section-binary [partial] |
|
/ "BINARY.SIZE" section-binary |
|
|
|
literal8 = "~{" number "}" CRLF *OCTET |
|
; <number> represents the number of OCTETs |
|
; in the response string. |
|
|
|
msg-att-static =/ "BINARY" section-binary SP (nstring / literal8) |
|
/ "BINARY.SIZE" section-binary SP number |
|
|
|
partial = "<" number "." nz-number ">" |
|
|
|
resp-text-code =/ "UNKNOWN-CTE" |
|
|
|
section-binary = "[" [section-part] "]" |
|
|
|
; ############################################################################ |
|
; Melnikov Standards Track [Page 2] |
|
; RFC 3691 IMAP UNSELECT command February 2004 |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. Non-terminals |
|
; referenced but not defined below are as defined by [IMAP4]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
command-select /= "UNSELECT" |
|
|
|
; ############################################################################ |
|
; Melnikov Standards Track [Page 20] |
|
; RFC 4314 IMAP ACL December 2005 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; Formal syntax is defined using ABNF [ABNF], extending the ABNF rules |
|
; in Section 9 of [IMAP4]. Elements not defined here can be found in |
|
; [ABNF] and [IMAP4]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case |
|
; insensitive. The use of uppercase or lowercase characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
LOWER-ALPHA = %x61-7A ;; a-z |
|
|
|
acl-data = "ACL" SP mailbox *(SP identifier SP |
|
rights) |
|
|
|
capability =/ rights-capa |
|
;;capability is defined in [IMAP4] |
|
|
|
command-auth =/ setacl / deleteacl / getacl / |
|
listrights / myrights |
|
;;command-auth is defined in [IMAP4] |
|
|
|
deleteacl = "DELETEACL" SP mailbox SP identifier |
|
|
|
getacl = "GETACL" SP mailbox |
|
|
|
identifier = astring |
|
|
|
listrights = "LISTRIGHTS" SP mailbox SP identifier |
|
|
|
listrights-data = "LISTRIGHTS" SP mailbox SP identifier |
|
SP rights *(SP rights) |
|
|
|
|
|
; Melnikov Standards Track [Page 21] |
|
; RFC 4314 IMAP ACL December 2005 |
|
|
|
|
|
mailbox-data =/ acl-data / listrights-data / myrights-data |
|
;;mailbox-data is defined in [IMAP4] |
|
|
|
mod-rights = astring |
|
;; +rights to add, -rights to remove |
|
;; rights to replace |
|
|
|
myrights = "MYRIGHTS" SP mailbox |
|
|
|
myrights-data = "MYRIGHTS" SP mailbox SP rights |
|
|
|
new-rights = 1*LOWER-ALPHA |
|
;; MUST include "t", "e", "x", and "k". |
|
;; MUST NOT include standard rights listed |
|
;; in section 2.2 |
|
|
|
rights = astring |
|
;; only lowercase ASCII letters and digits |
|
;; are allowed. |
|
|
|
rights-capa = "RIGHTS=" new-rights |
|
;; RIGHTS=... capability |
|
|
|
setacl = "SETACL" SP mailbox SP identifier |
|
SP mod-rights |
|
|
|
|
|
; ############################################################################ |
|
; Crispin Standards Track [Page 4] |
|
; RFC 4315 IMAP - UIDPLUS Extension December 2005 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; Formal syntax is defined using ABNF [ABNF], which extends the ABNF |
|
; rules defined in [IMAP]. The IMAP4 ABNF should be imported before |
|
; attempting to validate these rules. |
|
|
|
append-uid = uniqueid |
|
|
|
capability =/ "UIDPLUS" |
|
|
|
|
|
; Crispin Standards Track [Page 5] |
|
; RFC 4315 IMAP - UIDPLUS Extension December 2005 |
|
|
|
|
|
command-select =/ uid-expunge |
|
|
|
resp-code-apnd = "APPENDUID" SP nz-number SP append-uid |
|
|
|
resp-code-copy = "COPYUID" SP nz-number SP uid-set SP uid-set |
|
|
|
resp-text-code =/ resp-code-apnd / resp-code-copy / "UIDNOTSTICKY" |
|
; incorporated before the expansion rule of |
|
; atom [SP 1*<any TEXT-CHAR except "]">] |
|
; that appears in [IMAP] |
|
|
|
uid-expunge = "UID" SP "EXPUNGE" SP sequence-set |
|
|
|
uid-set = (uniqueid / uid-range) *("," uid-set) |
|
|
|
uid-range = (uniqueid ":" uniqueid) |
|
; two uniqueid values and all values |
|
; between these two regards of order. |
|
; Example: 2:4 and 4:2 are equivalent. |
|
|
|
; Servers that support [MULTIAPPEND] will have the following extension |
|
; to the above rules: |
|
|
|
append-uid =/ uid-set |
|
; only permitted if client uses [MULTIAPPEND] |
|
; to append multiple messages. |
|
|
|
; ############################################################################ |
|
; Melnikov & Daboo Standards Track [Page 8] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
; |
|
; 3. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [IMAP4]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of uppercase or lowercase characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
append = "APPEND" SP mailbox 1*append-message |
|
;; only a single append-message may appear |
|
;; if MULTIAPPEND [MULTIAPPEND] capability |
|
;; is not present |
|
|
|
append-message = append-opts SP append-data |
|
|
|
append-ext = append-ext-name SP append-ext-value |
|
;; This non-terminal define extensions to |
|
;; to message metadata. |
|
|
|
append-ext-name = tagged-ext-label |
|
|
|
append-ext-value= tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
|
|
append-data = literal / literal8 / append-data-ext |
|
|
|
append-data-ext = tagged-ext |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions, |
|
;; i.e., a mandatory label followed |
|
;; by parameters. |
|
|
|
append-opts = [SP flag-list] [SP date-time] *(SP append-ext) |
|
;; message metadata |
|
|
|
charset = atom / quoted |
|
;; Exact syntax is defined in [CHARSET]. |
|
|
|
create = "CREATE" SP mailbox |
|
[create-params] |
|
;; Use of INBOX gives a NO error. |
|
|
|
|
|
; Melnikov & Daboo Standards Track [Page 9] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
|
|
|
|
create-params = SP "(" create-param *( SP create-param) ")" |
|
|
|
create-param-name = tagged-ext-label |
|
|
|
create-param = create-param-name [SP create-param-value] |
|
|
|
create-param-value= tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
|
|
esearch-response = "ESEARCH" [search-correlator] [SP "UID"] |
|
*(SP search-return-data) |
|
;; Note that SEARCH and ESEARCH responses |
|
;; SHOULD be mutually exclusive, |
|
;; i.e., only one of the response types |
|
;; should be |
|
;; returned as a result of a command. |
|
|
|
|
|
examine = "EXAMINE" SP mailbox [select-params] |
|
;; modifies the original IMAP EXAMINE command |
|
;; to accept optional parameters |
|
|
|
fetch = "FETCH" SP sequence-set SP ("ALL" / "FULL" / |
|
"FAST" / fetch-att / |
|
"(" fetch-att *(SP fetch-att) ")") |
|
[fetch-modifiers] |
|
;; modifies the original IMAP4 FETCH command to |
|
;; accept optional modifiers |
|
|
|
fetch-modifiers = SP "(" fetch-modifier *(SP fetch-modifier) ")" |
|
|
|
fetch-modifier = fetch-modifier-name [ SP fetch-modif-params ] |
|
|
|
fetch-modif-params = tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
fetch-modifier-name = tagged-ext-label |
|
|
|
literal8 = "~{" number ["+"] "}" CRLF *OCTET |
|
;; A string that might contain NULs. |
|
;; <number> represents the number of OCTETs |
|
;; in the response string. |
|
;; The "+" is only allowed when both LITERAL+ and |
|
;; BINARY extensions are supported by the server. |
|
|
|
|
|
; Melnikov & Daboo Standards Track [Page 10] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
|
|
|
|
mailbox-data =/ Namespace-Response / |
|
esearch-response |
|
|
|
Namespace = nil / "(" 1*Namespace-Descr ")" |
|
|
|
Namespace-Command = "NAMESPACE" |
|
|
|
Namespace-Descr = "(" string SP |
|
(DQUOTE QUOTED-CHAR DQUOTE / nil) |
|
*(Namespace-Response-Extension) ")" |
|
|
|
Namespace-Response-Extension = SP string SP |
|
"(" string *(SP string) ")" |
|
|
|
Namespace-Response = "NAMESPACE" SP Namespace |
|
SP Namespace SP Namespace |
|
;; This response is currently only allowed |
|
;; if the IMAP server supports [NAMESPACE]. |
|
;; The first Namespace is the Personal Namespace(s) |
|
;; The second Namespace is the Other Users' Namespace(s) |
|
;; The third Namespace is the Shared Namespace(s) |
|
|
|
rename = "RENAME" SP mailbox SP mailbox |
|
[rename-params] |
|
;; Use of INBOX as a destination gives |
|
;; a NO error, unless rename-params |
|
;; is not empty. |
|
|
|
rename-params = SP "(" rename-param *( SP rename-param) ")" |
|
|
|
rename-param = rename-param-name [SP rename-param-value] |
|
|
|
rename-param-name = tagged-ext-label |
|
|
|
rename-param-value= tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
|
|
response-data = "*" SP response-payload CRLF |
|
|
|
response-payload= resp-cond-state / resp-cond-bye / |
|
mailbox-data / message-data / capability-data |
|
|
|
search = "SEARCH" [search-return-opts] |
|
SP search-program |
|
|
|
search-correlator = SP "(" "TAG" SP tag-string ")" |
|
|
|
|
|
; Melnikov & Daboo Standards Track [Page 11] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
|
|
|
|
search-program = ["CHARSET" SP charset SP] |
|
search-key *(SP search-key) |
|
;; CHARSET argument to SEARCH MUST be |
|
;; registered with IANA. |
|
|
|
search-return-data = search-modifier-name SP search-return-value |
|
;; Note that not every SEARCH return option |
|
;; is required to have the corresponding |
|
;; ESEARCH return data. |
|
|
|
search-return-opts = SP "RETURN" SP "(" [search-return-opt |
|
*(SP search-return-opt)] ")" |
|
|
|
search-return-opt = search-modifier-name [SP search-mod-params] |
|
|
|
search-return-value = tagged-ext-val |
|
;; Data for the returned search option. |
|
;; A single "nz-number"/"number" value |
|
;; can be returned as an atom (i.e., without |
|
;; quoting). A sequence-set can be returned |
|
;; as an atom as well. |
|
|
|
search-modifier-name = tagged-ext-label |
|
|
|
search-mod-params = tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
|
|
select = "SELECT" SP mailbox [select-params] |
|
;; modifies the original IMAP SELECT command to |
|
;; accept optional parameters |
|
|
|
select-params = SP "(" select-param *(SP select-param) ")" |
|
|
|
select-param = select-param-name [SP select-param-value] |
|
;; a parameter to SELECT may contain one or |
|
;; more atoms and/or strings and/or lists. |
|
|
|
select-param-name= tagged-ext-label |
|
|
|
select-param-value= tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
|
|
status-att-list = status-att-val *(SP status-att-val) |
|
;; Redefines status-att-list from RFC 3501. |
|
;; status-att-val is defined in RFC 3501 errata |
|
|
|
|
|
; Melnikov & Daboo Standards Track [Page 12] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
|
|
|
|
status-att-val = ("MESSAGES" SP number) / |
|
("RECENT" SP number) / |
|
("UIDNEXT" SP nz-number) / |
|
("UIDVALIDITY" SP nz-number) / |
|
("UNSEEN" SP number) |
|
;; Extensions to the STATUS responses |
|
;; should extend this production. |
|
;; Extensions should use the generic |
|
;; syntax defined by tagged-ext. |
|
|
|
store = "STORE" SP sequence-set [store-modifiers] |
|
SP store-att-flags |
|
;; extend [IMAP4] STORE command syntax |
|
;; to allow for optional store-modifiers |
|
|
|
store-modifiers = SP "(" store-modifier *(SP store-modifier) |
|
")" |
|
|
|
store-modifier = store-modifier-name [SP store-modif-params] |
|
|
|
store-modif-params = tagged-ext-val |
|
;; This non-terminal shows recommended syntax |
|
;; for future extensions. |
|
|
|
store-modifier-name = tagged-ext-label |
|
|
|
tag-string = string |
|
;; tag of the command that caused |
|
;; the ESEARCH response, sent as |
|
;; a string. |
|
|
|
tagged-ext = tagged-ext-label SP tagged-ext-val |
|
;; recommended overarching syntax for |
|
;; extensions |
|
|
|
tagged-ext-label = tagged-label-fchar *tagged-label-char |
|
;; Is a valid RFC 3501 "atom". |
|
|
|
tagged-label-fchar = ALPHA / "-" / "_" / "." |
|
|
|
tagged-label-char = tagged-label-fchar / DIGIT / ":" |
|
|
|
|
|
; Melnikov & Daboo Standards Track [Page 13] |
|
; RFC 4466 Collected Extensions to IMAP4 ABNF April 2006 |
|
|
|
|
|
tagged-ext-comp = astring / |
|
tagged-ext-comp *(SP tagged-ext-comp) / |
|
"(" tagged-ext-comp ")" |
|
;; Extensions that follow this general |
|
;; syntax should use nstring instead of |
|
;; astring when appropriate in the context |
|
;; of the extension. |
|
;; Note that a message set or a "number" |
|
;; can always be represented as an "atom". |
|
;; An URL should be represented as |
|
;; a "quoted" string. |
|
|
|
tagged-ext-simple = sequence-set / number |
|
|
|
tagged-ext-val = tagged-ext-simple / |
|
"(" [tagged-ext-comp] ")" |
|
|
|
|
|
; ############################################################################ |
|
; Crispin Standards Track [Page 12] |
|
; RFC 4467 IMAP - URLAUTH Extension May 2006 |
|
; |
|
; ... |
|
; |
|
; 9. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; The following modifications are made to the Formal Syntax in [IMAP]: |
|
|
|
resetkey = "RESETKEY" [SP mailbox *(SP mechanism)] |
|
|
|
capability =/ "URLAUTH" |
|
|
|
command-auth =/ resetkey / genurlauth / urlfetch |
|
|
|
resp-text-code =/ "URLMECH" SP "INTERNAL" *(SP mechanism ["=" base64]) |
|
|
|
genurlauth = "GENURLAUTH" 1*(SP url-rump SP mechanism) |
|
|
|
genurlauth-data = "*" SP "GENURLAUTH" 1*(SP url-full) |
|
|
|
|
|
; Crispin Standards Track [Page 13] |
|
; RFC 4467 IMAP - URLAUTH Extension May 2006 |
|
|
|
|
|
url-full = astring |
|
; contains authimapurlfull as defined below |
|
|
|
url-rump = astring |
|
; contains authimapurlrump as defined below |
|
|
|
urlfetch = "URLFETCH" 1*(SP url-full) |
|
|
|
urlfetch-data = "*" SP "URLFETCH" 1*(SP url-full SP nstring) |
|
|
|
|
|
; The following extensions are made to the Formal Syntax in [IMAPURL]: |
|
|
|
authimapurl = "imap://" enc-user [iauth] "@" hostport "/" |
|
imessagepart |
|
; replaces "imapurl" and "iserver" rules for |
|
; URLAUTH authorized URLs |
|
|
|
authimapurlfull = authimapurl iurlauth |
|
|
|
authimapurlrump = authimapurl iurlauth-rump |
|
|
|
enc-urlauth = 32*HEXDIG |
|
|
|
enc-user = 1*achar |
|
; same as "enc_user" in RFC 2192 |
|
|
|
iurlauth = iurlauth-rump ":" mechanism ":" enc-urlauth |
|
|
|
iurlauth-rump = [expire] ";URLAUTH=" access |
|
|
|
access = ("submit+" enc-user) / ("user+" enc-user) / |
|
"authuser" / "anonymous" |
|
|
|
expire = ";EXPIRE=" date-time |
|
; date-time defined in [DATETIME] |
|
|
|
mechanism = "INTERNAL" / 1*(ALPHA / DIGIT / "-" / ".") |
|
; case-insensitive |
|
; new mechanisms MUST be registered with IANA |
|
|
|
; ############################################################################ |
|
; Resnick Standards Track [Page 4] |
|
; RFC 4469 IMAP CATENATE Extension April 2006 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) [7] notation. Elements not defined here can be found in |
|
; the formal syntax of the ABNF [7], IMAP [1], and IMAP ABNF extensions |
|
; [8] specifications. Note that capability and resp-text-code are |
|
; extended from the IMAP [1] specification and append-data is extended |
|
; from the IMAP ABNF extensions [8] specification. |
|
|
|
append-data =/ "CATENATE" SP "(" cat-part *(SP cat-part) ")" |
|
|
|
cat-part = text-literal / url |
|
|
|
text-literal = "TEXT" SP literal |
|
|
|
url = "URL" SP astring |
|
; The astring in the definition of url and the url-resp-text in the |
|
; definition of badurl-response-code each contain an imapurl as defined |
|
; by [2]. |
|
|
|
resp-text-code =/ toobig-response-code / badurl-response-code |
|
|
|
toobig-response-code = "TOOBIG" |
|
|
|
badurl-response-code = "BADURL" SP url-resp-text |
|
|
|
url-resp-text = 1*(%x01-09 / |
|
%x0B-0C / |
|
%x0E-5B / |
|
%x5D-FE) ; Any TEXT-CHAR except "]" |
|
; The astring in the definition of url and the url-resp-text in the |
|
; definition of badurl-response-code each contain an imapurl as defined |
|
; by [2]. |
|
|
|
capability =/ "CATENATE" |
|
|
|
; ############################################################################ |
|
; RFC 4469 Errata |
|
; Source of RFC: lemonade (app) |
|
; |
|
; Errata ID: 2002 |
|
; Status: Verified |
|
; Type: Technical |
|
; Publication Format(s) : TEXT |
|
; Reported By: Mike Abbott |
|
; Date Reported: 2010-01-14 |
|
; Verifier Name: Alexey Melnikov |
|
; Date Verified: 2010-04-02 |
|
|
|
; Section 5 says: |
|
|
|
url-resp-text = 1*(%x01-09 / |
|
%x0B-0C / |
|
%x0E-5B / |
|
%x5D-FE) ; Any TEXT-CHAR except "]" |
|
|
|
; It should say: |
|
|
|
url-resp-text = 1*(%x01-09 / |
|
%x0B-0C / |
|
%x0E-5C / |
|
%x5E-FE) ; Any TEXT-CHAR except "]" |
|
|
|
; Notes: |
|
; |
|
; The skipped character %x5C is "\" not "]". I think the intent is to omit "]" |
|
; since url-resp-text is used exclusively inside a [BADURL url-resp-text] |
|
; response code, and they want to avoid aliasing the closing "]". |
|
|
|
; ############################################################################ |
|
; RFC 7162 Obsoletes: 4551 (2006), 5162 (2008) |
|
; |
|
; Melnikov & Cridland Standards Track [Page 43] |
|
; RFC 7162 IMAP CONDSTORE & QRESYNC May 2014 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [RFC5234], [RFC3501], or [RFC4466]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper- or lower-case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "CONDSTORE" / "QRESYNC" |
|
|
|
status-att =/ "HIGHESTMODSEQ" |
|
;; Extends non-terminal defined in [RFC3501]. |
|
|
|
status-att-val =/ "HIGHESTMODSEQ" SP mod-sequence-valzer |
|
;; Extends non-terminal defined in [RFC4466]. |
|
;; Value 0 denotes that the mailbox doesn't |
|
;; support persistent mod-sequences |
|
;; as described in Section 3.1.2.2. |
|
|
|
|
|
; Melnikov & Cridland Standards Track [Page 44] |
|
; RFC 7162 IMAP CONDSTORE & QRESYNC May 2014 |
|
|
|
|
|
store-modifier =/ "UNCHANGEDSINCE" SP mod-sequence-valzer |
|
;; Only a single "UNCHANGEDSINCE" may be |
|
;; specified in a STORE operation. |
|
|
|
fetch-modifier =/ chgsince-fetch-mod |
|
;; Conforms to the generic "fetch-modifier" |
|
;; syntax defined in [RFC4466]. |
|
|
|
chgsince-fetch-mod = "CHANGEDSINCE" SP mod-sequence-value |
|
;; CHANGEDSINCE FETCH modifier conforms to |
|
;; the fetch-modifier syntax. |
|
|
|
fetch-att =/ fetch-mod-sequence |
|
;; Modifies original IMAP4 fetch-att. |
|
|
|
fetch-mod-sequence = "MODSEQ" |
|
|
|
fetch-mod-resp = "MODSEQ" SP "(" permsg-modsequence ")" |
|
|
|
msg-att-dynamic =/ fetch-mod-resp |
|
|
|
search-key =/ search-modsequence |
|
;; Modifies original IMAP4 search-key. |
|
;; |
|
;; This change applies to all commands |
|
;; referencing this non-terminal -- in |
|
;; particular, SEARCH, SORT, and THREAD. |
|
|
|
search-modsequence = "MODSEQ" [search-modseq-ext] SP |
|
mod-sequence-valzer |
|
|
|
search-modseq-ext = SP entry-name SP entry-type-req |
|
|
|
resp-text-code =/ "HIGHESTMODSEQ" SP mod-sequence-value / |
|
"NOMODSEQ" / |
|
"MODIFIED" SP sequence-set |
|
|
|
entry-name = entry-flag-name |
|
|
|
|
|
; Melnikov & Cridland Standards Track [Page 45] |
|
; RFC 7162 IMAP CONDSTORE & QRESYNC May 2014 |
|
|
|
|
|
entry-flag-name = DQUOTE "/flags/" attr-flag DQUOTE |
|
;; Each system or user-defined flag <flag> |
|
;; is mapped to "/flags/<flag>". |
|
;; |
|
;; <entry-flag-name> follows the escape rules |
|
;; used by "quoted" string as described in |
|
;; Section 4.3 of [RFC3501]; e.g., for the |
|
;; flag \Seen, the corresponding <entry-name> |
|
;; is "/flags/\\seen", and for the flag |
|
;; $MDNSent, the corresponding <entry-name> |
|
;; is "/flags/$mdnsent". |
|
|
|
entry-type-resp = "priv" / "shared" |
|
;; Metadata item type. |
|
|
|
entry-type-req = entry-type-resp / "all" |
|
;; Perform SEARCH operation on a private |
|
;; metadata item, shared metadata item, |
|
;; or both. |
|
|
|
permsg-modsequence = mod-sequence-value |
|
;; Per-message mod-sequence. |
|
|
|
mod-sequence-value = 1*DIGIT |
|
;; Positive unsigned 63-bit integer |
|
;; (mod-sequence) |
|
;; (1 <= n <= 9,223,372,036,854,775,807). |
|
|
|
mod-sequence-valzer = "0" / mod-sequence-value |
|
|
|
search-sort-mod-seq = "(" "MODSEQ" SP mod-sequence-value ")" |
|
|
|
select-param =/ condstore-param |
|
;; Conforms to the generic "select-param" |
|
;; non-terminal syntax defined in [RFC4466]. |
|
|
|
condstore-param = "CONDSTORE" |
|
|
|
mailbox-data =/ "SEARCH" [1*(SP nz-number) SP |
|
search-sort-mod-seq] |
|
|
|
sort-data = "SORT" [1*(SP nz-number) SP |
|
search-sort-mod-seq] |
|
; Updates the SORT response from RFC 5256. |
|
|
|
|
|
; Melnikov & Cridland Standards Track [Page 46] |
|
; RFC 7162 IMAP CONDSTORE & QRESYNC May 2014 |
|
|
|
|
|
attr-flag = "\\Answered" / "\\Flagged" / "\\Deleted" / |
|
"\\Seen" / "\\Draft" / attr-flag-keyword / |
|
attr-flag-extension |
|
;; Does not include "\\Recent". |
|
|
|
attr-flag-extension = "\\" atom |
|
;; Future expansion. Client implementations |
|
;; MUST accept flag-extension flags. Server |
|
;; implementations MUST NOT generate |
|
;; flag-extension flags, except as defined by |
|
;; future standards or Standards Track |
|
;; revisions of [RFC3501]. |
|
|
|
attr-flag-keyword = atom |
|
|
|
select-param =/ "QRESYNC" SP "(" uidvalidity SP |
|
mod-sequence-value [SP known-uids] |
|
[SP seq-match-data] ")" |
|
;; Conforms to the generic select-param |
|
;; syntax defined in [RFC4466]. |
|
|
|
seq-match-data = "(" known-sequence-set SP known-uid-set ")" |
|
|
|
uidvalidity = nz-number |
|
|
|
known-uids = sequence-set |
|
;; Sequence of UIDs; "*" is not allowed. |
|
|
|
known-sequence-set = sequence-set |
|
;; Set of message numbers corresponding to |
|
;; the UIDs in known-uid-set, in ascending order. |
|
;; * is not allowed. |
|
|
|
known-uid-set = sequence-set |
|
;; Set of UIDs corresponding to the messages in |
|
;; known-sequence-set, in ascending order. |
|
;; * is not allowed. |
|
|
|
message-data =/ expunged-resp |
|
|
|
expunged-resp = "VANISHED" [SP "(EARLIER)"] SP known-uids |
|
|
|
|
|
; Melnikov & Cridland Standards Track [Page 47] |
|
; RFC 7162 IMAP CONDSTORE & QRESYNC May 2014 |
|
|
|
|
|
rexpunges-fetch-mod = "VANISHED" |
|
;; VANISHED UID FETCH modifier conforms |
|
;; to the fetch-modifier syntax |
|
;; defined in [RFC4466]. It is only |
|
;; allowed in the UID FETCH command. |
|
|
|
resp-text-code =/ "CLOSED" |
|
|
|
|
|
; ############################################################################ |
|
; Melnikov & Cridland Standards Track [Page 4] |
|
; RFC 4731 IMAP4 Extension to SEARCH November 2006 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [IMAP4], [CONDSTORE], or [IMAPABNF]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lowercase characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "ESEARCH" |
|
|
|
search-return-data = "MIN" SP nz-number / |
|
"MAX" SP nz-number / |
|
"ALL" SP sequence-set / |
|
"COUNT" SP number |
|
;; conforms to the generic |
|
;; search-return-data syntax defined |
|
;; in [IMAPABNF] |
|
|
|
search-return-opt = "MIN" / "MAX" / "ALL" / "COUNT" |
|
;; conforms to generic search-return-opt |
|
;; syntax defined in [IMAPABNF] |
|
|
|
; When the CONDSTORE [CONDSTORE] IMAP extension is also supported, |
|
; the ABNF is updated as follows: |
|
|
|
search-return-data =/ "MODSEQ" SP mod-sequence-value |
|
;; mod-sequence-value is defined |
|
;; in [CONDSTORE] |
|
|
|
|
|
; ############################################################################ |
|
; Siemborski & Gulbrandsen Standards Track [Page 4] |
|
; RFC 4959 IMAP Ext for SASL Initial Client Response September 2007 |
|
; |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form [RFC4234] notation. [RFC3501] defines the non-terminals |
|
; capability, auth-type, and base64. |
|
|
|
capability =/ "SASL-IR" |
|
|
|
authenticate = "AUTHENTICATE" SP auth-type [SP (base64 / "=")] |
|
*(CRLF base64) |
|
;;redefine AUTHENTICATE from [RFC3501] |
|
|
|
|
|
; ############################################################################ |
|
; Gulbrandsen Standards Track [Page 5] |
|
; RFC 4978 The IMAP COMPRESS Extension August 2007 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC4234]. This syntax augments |
|
; the grammar specified in [RFC3501]. [RFC4234] defines SP and |
|
; [RFC3501] defines command-auth, capability, and resp-text-code. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
command-auth =/ compress |
|
|
|
compress = "COMPRESS" SP algorithm |
|
|
|
capability =/ "COMPRESS=" algorithm |
|
;; multiple COMPRESS capabilities allowed |
|
|
|
algorithm = "DEFLATE" |
|
|
|
resp-text-code =/ "COMPRESSIONACTIVE" |
|
|
|
; Note that due the syntax of capability names, future algorithm names |
|
; must be atoms. |
|
|
|
|
|
; ############################################################################ |
|
; Burger Standards Track [Page 1] |
|
; RFC 5032 Search Within September 2007 |
|
; |
|
; ... |
|
; |
|
; 3. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation. Elements not defined here can be found in the |
|
; formal syntax of ABNF [RFC4234] and IMAP [RFC3501]. |
|
; |
|
; This document extends RFC 3501 [RFC3501] with two new search keys: |
|
; OLDER <interval> and YOUNGER <interval>. |
|
|
|
search-key =/ ( "OLDER" / "YOUNGER" ) SP nz-number |
|
; search-key defined in RFC 3501 |
|
|
|
; ############################################################################ |
|
; Gulbrandsen & Melnikov Standards Track [Page 3] |
|
; RFC 5161 The IMAP ENABLE Extension March 2008 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234] including the core |
|
; rules in Appendix B.1. [RFC3501] defines the non-terminals |
|
; "capability" and "command-any". |
|
; |
|
; Except as noted otherwise, all alphabetic characters are |
|
; case-insensitive. The use of upper or lower case characters to |
|
; define token strings is for editorial clarity only. Implementations |
|
; MUST accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "ENABLE" |
|
|
|
command-any =/ "ENABLE" 1*(SP capability) |
|
|
|
response-data =/ "*" SP enable-data CRLF |
|
|
|
enable-data = "ENABLED" *(SP capability) |
|
|
|
; ############################################################################ |
|
; Melnikov Standards Track [Page 9] |
|
; RFC 5182 Last SEARCH Result Reference March 2008 |
|
; |
|
; |
|
; 3. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. Non-terminals |
|
; referenced but not defined below are as defined in [IMAP4] or |
|
; [IMAPABNF]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are |
|
; case-insensitive. The use of upper- or lower-case characters to |
|
; define token strings is for editorial clarity only. Implementations |
|
; MUST accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "SEARCHRES" |
|
;; capability is defined in [IMAP4] |
|
|
|
sequence-set =/ seq-last-command |
|
;; extends sequence-set to allow for |
|
;; "result of the last command" indicator. |
|
|
|
seq-last-command = "$" |
|
|
|
search-return-opt = "SAVE" |
|
;; conforms to generic search-return-opt |
|
;; syntax defined in [IMAPABNF] |
|
|
|
resp-text-code =/ "NOTSAVED" |
|
;; <resp-text-code> from [IMAP4] |
|
|
|
; ############################################################################ |
|
; Newman, et al. Standards Track [Page 7] |
|
; RFC 5255 IMAP Internationalization June 2008 |
|
; |
|
; |
|
; 3.5. Formal Syntax |
|
; |
|
; The following syntax specification inherits ABNF [RFC5234] rules from |
|
; IMAP4rev1 [RFC3501], IMAP4 Namespace [RFC2342], Tags for the |
|
; Identifying Languages [RFC4646], UTF-8 [RFC3629], and Collected |
|
; Extensions to IMAP4 ABNF [RFC4466]. |
|
|
|
command-any =/ language-cmd |
|
; LANGUAGE command is valid in all states |
|
|
|
language-cmd = "LANGUAGE" *(SP lang-range-quoted) |
|
|
|
response-payload =/ language-data |
|
|
|
language-data = "LANGUAGE" SP "(" lang-tag-quoted *(SP |
|
lang-tag-quoted) ")" |
|
|
|
namespace-trans = SP DQUOTE "TRANSLATION" DQUOTE SP "(" string ")" |
|
; the string is encoded in Modified UTF-7. |
|
; this is a subset of the syntax permitted by |
|
; the Namespace-Response-Extension rule in [RFC4466] |
|
|
|
lang-range-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the language-range rule in [RFC4647] |
|
|
|
lang-tag-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this follows |
|
; the Language-Tag rule in [RFC4646] |
|
|
|
resp-text = ["[" resp-text-code "]" SP ] UTF8-TEXT-CHAR |
|
*(UTF8-TEXT-CHAR / "[") |
|
; After the server is changed to a language other than |
|
; i-default, this resp-text rule replaces the resp-text |
|
; rule from [RFC3501]. |
|
|
|
UTF8-TEXT-CHAR = %x20-5A / %x5C-7E / UTF8-2 / UTF8-3 / UTF8-4 |
|
; UTF-8 excluding 7-bit control characters and "[" |
|
|
|
|
|
; ... |
|
; |
|
; Newman, et al. Standards Track [Page 13] |
|
; RFC 5255 IMAP Internationalization June 2008 |
|
; |
|
; ... |
|
; |
|
; 4.10. Formal Syntax |
|
; |
|
; The following syntax specification inherits ABNF [RFC5234] rules from |
|
; IMAP4rev1 [RFC3501] and the Internet Application Protocol Comparator |
|
; Registry [RFC4790]. |
|
|
|
command-auth =/ comparator-cmd |
|
|
|
resp-text-code =/ "BADCOMPARATOR" |
|
|
|
comparator-cmd = "COMPARATOR" *(SP comp-order-quoted) |
|
|
|
response-payload =/ comparator-data |
|
|
|
comparator-data = "COMPARATOR" SP comp-sel-quoted [SP "(" |
|
comp-id-quoted *(SP comp-id-quoted) ")"] |
|
|
|
comp-id-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the collation-id rule from [RFC4790] |
|
|
|
comp-order-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the collation-order rule from [RFC4790] |
|
|
|
|
|
; Newman, et al. Standards Track [Page 14] |
|
; RFC 5255 IMAP Internationalization June 2008 |
|
|
|
|
|
comp-sel-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the collation-selected rule from [RFC4790] |
|
|
|
|
|
; ############################################################################ |
|
; RFC 5255 Errata |
|
; Source of RFC: imapext (app) |
|
; |
|
; Errata ID: 4092 |
|
; Status: Verified |
|
; Type: Technical |
|
; Publication Format(s) : TEXT |
|
; Reported By: Chris Newman |
|
; Date Reported: 2014-08-26 |
|
; Verifier Name: Barry Leiba |
|
; Date Verified: 2014-08-26 |
|
; |
|
; Section 3.5 says: |
|
|
|
lang-range-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the language-range rule in [RFC4647] |
|
|
|
; It should say: |
|
|
|
lang-range-quoted = astring |
|
; Once any literal wrapper or quoting is removed, this |
|
; follows the language-range rule in [RFC4647], |
|
; or is the 7-character string "default" |
|
|
|
; Notes: |
|
; |
|
; This change makes the ABNF comment match the prose and example in section 3.2. |
|
|
|
; ############################################################################ |
|
; Crispin & Murchison Standards Track [Page 13] |
|
; RFC 5256 IMAP Sort June 2008 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax of SORT and THREAD Commands and Responses |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. It also uses [ABNF] |
|
; rules defined in [IMAP]. |
|
|
|
sort = ["UID" SP] "SORT" SP sort-criteria SP search-criteria |
|
|
|
sort-criteria = "(" sort-criterion *(SP sort-criterion) ")" |
|
|
|
sort-criterion = ["REVERSE" SP] sort-key |
|
|
|
sort-key = "ARRIVAL" / "CC" / "DATE" / "FROM" / "SIZE" / |
|
"SUBJECT" / "TO" |
|
|
|
thread = ["UID" SP] "THREAD" SP thread-alg SP search-criteria |
|
|
|
thread-alg = "ORDEREDSUBJECT" / "REFERENCES" / thread-alg-ext |
|
|
|
thread-alg-ext = atom |
|
; New algorithms MUST be registered with IANA |
|
|
|
search-criteria = charset 1*(SP search-key) |
|
|
|
charset = atom / quoted |
|
; CHARSET values MUST be registered with IANA |
|
|
|
sort-data = "SORT" *(SP nz-number) |
|
|
|
thread-data = "THREAD" [SP 1*thread-list] |
|
|
|
|
|
; Crispin & Murchison Standards Track [Page 14] |
|
; RFC 5256 IMAP Sort June 2008 |
|
|
|
|
|
thread-list = "(" (thread-members / thread-nested) ")" |
|
|
|
thread-members = nz-number *(SP nz-number) [SP thread-nested] |
|
|
|
thread-nested = 2*thread-list |
|
|
|
; The following syntax describes base subject extraction rules (2)-(6): |
|
|
|
subject = *subj-leader [subj-middle] *subj-trailer |
|
|
|
subj-refwd = ("re" / ("fw" ["d"])) *WSP [subj-blob] ":" |
|
|
|
subj-blob = "[" *BLOBCHAR "]" *WSP |
|
|
|
subj-fwd = subj-fwd-hdr subject subj-fwd-trl |
|
|
|
subj-fwd-hdr = "[fwd:" |
|
|
|
subj-fwd-trl = "]" |
|
|
|
subj-leader = (*subj-blob subj-refwd) / WSP |
|
|
|
subj-middle = *subj-blob (subj-base / subj-fwd) |
|
; last subj-blob is subj-base if subj-base would |
|
; otherwise be empty |
|
|
|
subj-trailer = "(fwd)" / WSP |
|
|
|
subj-base = NONWSP *(*WSP NONWSP) |
|
; can be a subj-blob |
|
|
|
BLOBCHAR = %x01-5a / %x5c / %x5e-ff |
|
; any CHAR8 except '[' and ']'. |
|
; SHOULD comply with [UTF-8] |
|
|
|
NONWSP = %x01-08 / %x0a-1f / %x21-ff |
|
; any CHAR8 other than WSP. |
|
; SHOULD comply with [UTF-8] |
|
|
|
; ############################################################################ |
|
; Leiba & Melnikov Standards Track [Page 18] |
|
; RFC 5258 IMAP4 LIST Command Extensions June 2008 |
|
; |
|
; ... |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) as described in [ABNF]. Terms not defined here are taken |
|
; from [IMAP4]. In particular, note that the version of "mailbox-list" |
|
; below, which defines the payload of the LIST response, updates the |
|
; version defined in the IMAP specification. It is pointed to by |
|
; "mailbox-data", which is defined in [IMAP4]. |
|
; |
|
; "vendor-token" is defined in [ACAP]. Note that this normative |
|
; reference to ACAP will be an issue in moving this spec forward, since |
|
; it introduces a dependency on ACAP. The definitions of |
|
; "vendor-token" and of the IANA registry must eventually go somewhere |
|
; else, in a document that can be moved forward on the standards track |
|
; independently of ACAP. |
|
; |
|
; |
|
; Leiba & Melnikov Standards Track [Page 19] |
|
; RFC 5258 IMAP4 LIST Command Extensions June 2008 |
|
|
|
|
|
childinfo-extended-item = "CHILDINFO" SP "(" |
|
list-select-base-opt-quoted |
|
*(SP list-select-base-opt-quoted) ")" |
|
; Extended data item (mbox-list-extended-item) |
|
; returned when the RECURSIVEMATCH |
|
; selection option is specified. |
|
; Note 1: the CHILDINFO tag can be returned |
|
; with and without surrounding quotes, as per |
|
; mbox-list-extended-item-tag production. |
|
; Note 2: The selection options are always returned |
|
; quoted, unlike their specification in |
|
; the extended LIST command. |
|
|
|
child-mbox-flag = "\HasChildren" / "\HasNoChildren" |
|
; attributes for CHILDREN return option, at most one |
|
; possible per LIST response |
|
|
|
eitem-standard-tag = atom |
|
; a tag for extended list data defined in a Standard |
|
; Track or Experimental RFC. |
|
|
|
eitem-vendor-tag = vendor-token "-" atom |
|
; a vendor-specific tag for extended list data |
|
|
|
list = "LIST" [SP list-select-opts] SP mailbox SP mbox-or-pat |
|
[SP list-return-opts] |
|
|
|
list-return-opts = "RETURN" SP |
|
"(" [return-option *(SP return-option)] ")" |
|
; list return options, e.g., CHILDREN |
|
|
|
list-select-base-opt = "SUBSCRIBED" / option-extension |
|
; options that can be used by themselves |
|
|
|
list-select-base-opt-quoted = DQUOTE list-select-base-opt DQUOTE |
|
|
|
list-select-independent-opt = "REMOTE" / option-extension |
|
; options that do not syntactically interact with |
|
; other options |
|
|
|
list-select-mod-opt = "RECURSIVEMATCH" / option-extension |
|
; options that require a list-select-base-opt |
|
; to also be present |
|
|
|
list-select-opt = list-select-base-opt / list-select-independent-opt |
|
/ list-select-mod-opt |
|
; An option registration template is described in |
|
; Section 9.3 of this document. |
|
|
|
|
|
; Leiba & Melnikov Standards Track [Page 20] |
|
; RFC 5258 IMAP4 LIST Command Extensions June 2008 |
|
|
|
|
|
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) |
|
|
|
mailbox-list = "(" [mbx-list-flags] ")" SP |
|
(DQUOTE QUOTED-CHAR DQUOTE / nil) SP mailbox |
|
[SP mbox-list-extended] |
|
; This is the list information pointed to by the ABNF |
|
; item "mailbox-data", which is defined in [IMAP4] |
|
|
|
mbox-list-extended = "(" [mbox-list-extended-item |
|
*(SP mbox-list-extended-item)] ")" |
|
|
|
mbox-list-extended-item = mbox-list-extended-item-tag SP |
|
tagged-ext-val |
|
|
|
mbox-list-extended-item-tag = astring |
|
; The content MUST conform to either "eitem-vendor-tag" |
|
; or "eitem-standard-tag" ABNF productions. |
|
; A tag registration template is described in this |
|
; document in Section 9.5. |
|
|
|
mbx-list-oflag =/ child-mbox-flag / "\Subscribed" / "\Remote" |
|
|
|
mbx-list-sflag =/ "\NonExistent" |
|
|
|
mbox-or-pat = list-mailbox / patterns |
|
|
|
option-extension = (option-standard-tag / option-vendor-tag) |
|
[SP option-value] |
|
|
|
|
|
; Leiba & Melnikov Standards Track [Page 21] |
|
; RFC 5258 IMAP4 LIST Command Extensions June 2008 |
|
|
|
|
|
option-standard-tag = atom |
|
; an option defined in a Standards Track or |
|
; Experimental RFC |
|
|
|
option-val-comp = astring / |
|
option-val-comp *(SP option-val-comp) / |
|
"(" option-val-comp ")" |
|
|
|
option-value = "(" option-val-comp ")" |
|
|
|
option-vendor-tag = vendor-token "-" atom |
|
; a vendor-specific option, non-standard |
|
|
|
patterns = "(" list-mailbox *(SP list-mailbox) ")" |
|
|
|
return-option = "SUBSCRIBED" / "CHILDREN" / option-extension |
|
|
|
tagged-ext-comp = astring / |
|
tagged-ext-comp *(SP tagged-ext-comp) / |
|
"(" tagged-ext-comp ")" |
|
; Extensions that follow this general |
|
; syntax should use nstring instead of |
|
; astring when appropriate in the context |
|
; of the extension. |
|
; Note that a message set or a "number" |
|
; can always be represented as an "atom". |
|
; A URL should be represented as |
|
; a "quoted" string. |
|
|
|
tagged-ext-simple = sequence-set / number |
|
|
|
tagged-ext-val = tagged-ext-simple / |
|
"(" [tagged-ext-comp] ")" |
|
|
|
|
|
; ############################################################################ |
|
; Melnikov & Coates Standards Track [Page 19] |
|
; RFC 5259 IMAP CONVERT extension July 2008 |
|
; |
|
; ... |
|
; |
|
; 10. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (ABNF) notation as used in [ABNF], and incorporates by reference |
|
; the core rules defined in that document. |
|
; |
|
; This syntax augments the grammar specified in [RFC3501] and |
|
; [RFC3516]. Non-terminals not defined in this document can be found |
|
; in [RFC3501], [RFC3516], [IMAPABNF], [MIME-MTSRP], and |
|
; [MEDIAFEAT-REG]. |
|
|
|
command-select =/ convert |
|
|
|
uid =/ "UID" SP convert |
|
; Unique identifiers used instead of message |
|
; sequence numbers |
|
|
|
convert = "CONVERT" SP sequence-set SP convert-params SP |
|
( convert-att / |
|
"(" convert-att *(SP convert-att) ")" ) |
|
|
|
convert-att = "UID" / |
|
"BODYPARTSTRUCTURE" section-convert / |
|
"BINARY" section-convert [partial] / |
|
"BINARY.SIZE" section-convert / |
|
"BODY[HEADER]" / |
|
"BODY[" section-part ".HEADER]" / |
|
"BODY[" section-part ".MIME]" / |
|
"AVAILABLECONVERSIONS" section-convert |
|
; <partial> is defined in [RFC3516]. |
|
; <section-part> is defined in [RFC3501]. |
|
|
|
|
|
; Melnikov & Coates Standards Track [Page 20] |
|
; RFC 5259 IMAP CONVERT extension July 2008 |
|
|
|
|
|
convert-params = "(" (quoted-to-mime-type / default-conversion) |
|
[SP "(" transcoding-params ")"] ")" |
|
|
|
quoted-to-mime-type = DQUOTE to-mime-type DQUOTE |
|
|
|
transcoding-params = transcoding-param |
|
*(SP transcoding-param) |
|
|
|
transcoding-param-names = transcoding-param-name |
|
*(SP transcoding-param-name) |
|
|
|
transcoding-param = transcoding-param-name SP |
|
transcoding-param-value |
|
|
|
transcoding-param-name = astring |
|
; <transcod-param-name-nq> represented as a quoted, |
|
; literal or atom. Note that |
|
; <transcod-param-name-nq> allows for "%", which is |
|
; not allowed in atoms. Such values must be |
|
; represented as quoted or literal. |
|
|
|
transcod-param-name-nq = Feature-tag |
|
; <Feature-tag> is defined in [MEDIAFEAT-REG]. |
|
|
|
transcoding-param-value = astring |
|
|
|
default-conversion = "NIL" |
|
|
|
message-data =/ nz-number SP "CONVERTED" SP convert-correlator |
|
SP convert-msg-attrs |
|
|
|
convert-correlator = "(" "TAG" SP tag-string ")" |
|
|
|
tag-string = string |
|
; tag of the command that caused |
|
; the CONVERTED response, sent as |
|
; a string. |
|
|
|
convert-msg-attrs = "(" convert-msg-att *(SP convert-msg-att) ")" |
|
; "UID" MUST be the first data item, if present. |
|
|
|
convert-msg-att = msg-att-semistat / msg-att-conv-static |
|
|
|
msg-att-conv-static = "UID" SP uniqueid |
|
; MUST NOT change for a message |
|
|
|
|
|
; Melnikov & Coates Standards Track [Page 21] |
|
; RFC 5259 IMAP CONVERT extension July 2008 |
|
|
|
|
|
msg-att-semistat = |
|
( "BINARY" section-convert ["<" number ">"] SP |
|
(nstring / literal8 / converterror-phrase) ) / |
|
( "BINARY.SIZE" section-convert SP |
|
(number / converterror-phrase) ) / |
|
( "BODYPARTSTRUCTURE" section-convert SP |
|
(body / converterror-phrase) ) / |
|
( "AVAILABLECONVERSIONS" section-convert SP |
|
(mimetype-list / converterror-phrase) ) |
|
; MUST NOT change during an IMAP "session", |
|
; but not necessarily static in the long term. |
|
|
|
section-convert = section-binary |
|
; <section-binary> is defined in [RFC3516]. |
|
; |
|
; Note that unlike [RFC3516], conversion |
|
; of a top level multipart/* is allowed. |
|
|
|
resp-text-code =/ "TEMPFAIL" / |
|
"MAXCONVERTMESSAGES" SP nz-number / |
|
"MAXCONVERTPARTS" SP nz-number |
|
; <resp-text-code> is defined in [RFC3501]. |
|
|
|
mimetype-and-params = quoted-to-mime-type |
|
[SP "(" transcoding-params ")"] |
|
; always includes a specific MIME type |
|
|
|
mimetype-list = "(" "(" [quoted-to-mime-type |
|
*(SP quoted-to-mime-type)] ")" ")" |
|
; Unordered list of MIME types. It can be empty. |
|
; |
|
; Two levels of parenthesis is needed to distinguish this |
|
; data from <converterror-phrase>. |
|
|
|
converterror-phrase = "(" "ERROR" SP |
|
convert-err-descript SP convert-error-code ")" |
|
|
|
convert-error-code = "TEMPFAIL" [SP nz-number] |
|
/ bad-params |
|
/ missing-params |
|
|
|
convert-err-descript = string |
|
; Human-readable text explaining the conversion error. |
|
; The default charset is US-ASCII, unless |
|
; the LANGUAGE command [IMAP-I18N] is called, when |
|
; the charset changes to UTF-8. |
|
|
|
quoted-from-mime-type = DQUOTE from-concrete-mime-type DQUOTE |
|
|
|
|
|
; Melnikov & Coates Standards Track [Page 22] |
|
; RFC 5259 IMAP CONVERT extension July 2008 |
|
|
|
|
|
bad-params = "BADPARAMETERS" |
|
1*(SP (quoted-from-mime-type / nil) |
|
SP mimetype-and-params) |
|
; nil is only returned when the body part doesn't exist. |
|
|
|
missing-params = "MISSINGPARAMETERS" |
|
1*(SP quoted-from-mime-type SP |
|
mimetype-and-missing-params) |
|
|
|
mimetype-and-missing-params = quoted-to-mime-type |
|
"(" transcoding-param-names ")" |
|
; always includes a specific MIME type |
|
|
|
concrete-mime-type = type-name "/" subtype-name |
|
; i.e., "type/subtype". |
|
; type-name and subtype-name |
|
; are defined in [MIME-MTSRP]. |
|
|
|
from-concrete-mime-type = concrete-mime-type |
|
|
|
to-mime-type = concrete-mime-type |
|
|
|
command-auth =/ conversions-cmd |
|
|
|
conversions-cmd = "CONVERSIONS" SP from-mime-type-req SP |
|
to-mime-type-req |
|
|
|
from-mime-type-req = astring |
|
; "mime-type-req" represented as IMAP <atom>, |
|
; <quoted> or <literal> |
|
|
|
to-mime-type-req = astring |
|
; <mime-type-req> represented as IMAP <atom>, |
|
; <quoted> or <literal>. |
|
; Note that <mime-type-req> allows for "*", |
|
; which is not allowed in <atom>. Such values must |
|
; be represented as <quoted> or <literal>. |
|
|
|
any-mime-type = "*" |
|
|
|
mime-type-req = any-mime-type / |
|
(type-name "/" any-mime-type) / |
|
concrete-mime-type |
|
; '*', 'type/*' or 'type/subtype'. |
|
; type-name is defined in [MIME-MTSRP]. |
|
|
|
response-payload =/ conversion-data |
|
|
|
|
|
; Melnikov & Coates Standards Track [Page 23] |
|
; RFC 5259 IMAP CONVERT extension July 2008 |
|
|
|
|
|
conversion-data = "CONVERSION" SP quoted-from-mime-type SP |
|
quoted-to-mime-type |
|
[SP "(" transcoding-param-name |
|
*(SP transcoding-param-name) ")"] |
|
|
|
|
|
; ############################################################################ |
|
; Cridland & King Standards Track [Page 11] |
|
; RFC 5267 IMAP CONTEXT July 2008 |
|
; |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The collected formal syntax. This uses ABNF as defined in [ABNF]. |
|
; It includes definitions from [IMAP], [IMAP-ABNF], and [SORT]. |
|
|
|
capability =/ "CONTEXT=SEARCH" / "CONTEXT=SORT" / "ESORT" |
|
;; <capability> from [IMAP] |
|
|
|
command-select =/ "CANCELUPDATE" 1*(SP quoted) |
|
;; <command-select> from [IMAP] |
|
|
|
context-position = number |
|
;; Context position may be 0 for SEARCH result additions. |
|
;; <number> from [IMAP] |
|
|
|
modifier-context = "CONTEXT" |
|
|
|
modifier-partial = "PARTIAL" SP partial-range |
|
|
|
partial-range = nz-number ":" nz-number |
|
;; A range 500:400 is the same as 400:500. |
|
;; This is similar to <seq-range> from [IMAP], |
|
;; but cannot contain "*". |
|
|
|
modifier-update = "UPDATE" |
|
|
|
search-return-opt =/ modifier-context / modifier-partial / |
|
modifier-update |
|
;; All conform to <search-return-opt>, from [IMAP-ABNF] |
|
|
|
resp-text-code =/ "NOUPDATE" SP quoted |
|
;; <resp-text-code> from [IMAP] |
|
|
|
ret-data-addto = "ADDTO" |
|
SP "(" context-position SP sequence-set |
|
*(SP context-position SP sequence-set) |
|
")" |
|
;; <sequence-set> from [IMAP] |
|
|
|
ret-data-partial = "PARTIAL" |
|
SP "(" partial-range SP partial-results ")" |
|
;; <partial-range> is the requested range. |
|
|
|
partial-results = sequence-set / "NIL" |
|
;; <sequence-set> from [IMAP] |
|
;; NIL indicates no results correspond to the requested range. |
|
|
|
|
|
; Cridland & King Standards Track [Page 12] |
|
; RFC 5267 IMAP CONTEXT July 2008 |
|
|
|
|
|
ret-data-removefrom = "REMOVEFROM" |
|
SP "(" context-position SP sequence-set |
|
*(SP context-position SP sequence-set) |
|
")" |
|
;; <sequence-set> from [IMAP] |
|
|
|
search-return-data =/ ret-data-partial / ret-data-addto / |
|
ret-data-removefrom |
|
;; All conform to <search-return-data>, from [IMAP-ABNF] |
|
|
|
sort =/ extended-sort |
|
;; <sort> from [SORT] |
|
|
|
extended-sort = ["UID" SP] "SORT" search-return-opts |
|
SP sort-criteria SP search-criteria |
|
;; <search-return-opts> from [IMAP-ABNF] |
|
;; <sort-criteria> and <search-criteria> from [SORT] |
|
|
|
|
|
; ############################################################################ |
|
; Daboo Standards Track [Page 13] |
|
; RFC 5464 The IMAP METADATA Extension February 2009 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [RFC3501], with the new definitions in [RFC4466] superseding those in |
|
; [RFC3501]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "METADATA" / "METADATA-SERVER" |
|
; defines the capabilities for this extension. |
|
|
|
command-auth =/ setmetadata / getmetadata |
|
; adds to original IMAP command |
|
|
|
entries = entry / |
|
"(" entry *(SP entry) ")" |
|
; entry specifiers |
|
|
|
entry = astring |
|
; slash-separated path to entry |
|
; MUST NOT contain "*" or "%" |
|
|
|
entry-value = entry SP value |
|
|
|
entry-values = "(" entry-value *(SP entry-value) ")" |
|
|
|
|
|
; Daboo Standards Track [Page 14] |
|
; RFC 5464 The IMAP METADATA Extension February 2009 |
|
|
|
|
|
entry-list = entry *(SP entry) |
|
; list of entries used in unsolicited |
|
; METADATA response |
|
|
|
getmetadata = "GETMETADATA" [SP getmetadata-options] |
|
SP mailbox SP entries |
|
; empty string for mailbox implies |
|
; server annotation. |
|
|
|
getmetadata-options = "(" getmetadata-option |
|
*(SP getmetadata-option) ")" |
|
|
|
getmetadata-option = tagged-ext-label [SP tagged-ext-val] |
|
; tagged-ext-label and tagged-ext-val |
|
; are defined in [RFC4466]. |
|
|
|
maxsize-opt = "MAXSIZE" SP number |
|
; Used as a getmetadata-option |
|
|
|
metadata-resp = "METADATA" SP mailbox SP |
|
(entry-values / entry-list) |
|
; empty string for mailbox implies |
|
; server annotation. |
|
|
|
response-payload =/ metadata-resp |
|
; adds to original IMAP data responses |
|
|
|
resp-text-code =/ "METADATA" SP "LONGENTRIES" SP number |
|
; new response codes for GETMETADATA |
|
|
|
resp-text-code =/ "METADATA" SP ("MAXSIZE" SP number / |
|
"TOOMANY" / "NOPRIVATE") |
|
; new response codes for SETMETADATA |
|
; failures |
|
|
|
scope-opt = "DEPTH" SP ("0" / "1" / "infinity") |
|
; Used as a getmetadata-option |
|
|
|
setmetadata = "SETMETADATA" SP mailbox |
|
SP entry-values |
|
; empty string for mailbox implies |
|
; server annotation. |
|
|
|
value = nstring / literal8 |
|
|
|
; ############################################################################ |
|
; Gulbrandsen, et al. Standards Track [Page 16] |
|
; RFC 5465 IMAP NOTIFY Extension February 2009 |
|
; |
|
; |
|
; 8. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. [RFC3501] defines |
|
; the non-terminals "capability", "command-auth", "mailbox", "mailbox- |
|
; data", "resp-text-code", and "search-key". The "modifier-update" |
|
; non-terminal is defined in [RFC5267]. "mbx-list-oflag" is defined in |
|
; [RFC3501] and updated by [RFC5258]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. For example, the |
|
; <filter-mailboxes-selected> non-terminal value "SELECTED" must be |
|
; treated in the same way as "Selected" or "selected". |
|
|
|
capability =/ "NOTIFY" |
|
|
|
command-auth =/ notify |
|
|
|
notify = "NOTIFY" SP |
|
(notify-set / notify-none) |
|
|
|
notify-set = "SET" [status-indicator] SP event-groups |
|
; Replace registered notification events |
|
; with the specified list of events |
|
|
|
notify-none = "NONE" |
|
; Cancel all registered notification |
|
; events. The client is not interested |
|
; in receiving any events. |
|
|
|
status-indicator = SP "STATUS" |
|
|
|
one-or-more-mailbox = mailbox / many-mailboxes |
|
|
|
many-mailboxes = "(" mailbox *(SP mailbox) ")" |
|
|
|
event-groups = event-group *(SP event-group) |
|
|
|
event-group = "(" filter-mailboxes SP events ")" |
|
;; Only <message-event>s are allowed in <events> |
|
;; when <filter-mailboxes-selected> is used. |
|
|
|
filter-mailboxes = filter-mailboxes-selected / |
|
filter-mailboxes-other |
|
|
|
|
|
; Gulbrandsen, et al. Standards Track [Page 17] |
|
; RFC 5465 IMAP NOTIFY Extension February 2009 |
|
|
|
|
|
filter-mailboxes-other = "inboxes" / "personal" / "subscribed" / |
|
( "subtree" SP one-or-more-mailbox ) / |
|
( "mailboxes" SP one-or-more-mailbox ) |
|
|
|
filter-mailboxes-selected = "selected" / "selected-delayed" |
|
;; Apply to the currently selected mailbox only. |
|
;; Only one of them can be specified in a NOTIFY |
|
;; command. |
|
|
|
events = ( "(" event *(SP event) ")" ) / "NONE" |
|
;; As in [MSGEVENT]. |
|
;; "NONE" means that the client does not wish |
|
;; to receive any events for the specified |
|
;; mailboxes. |
|
|
|
event = message-event / |
|
mailbox-event / user-event / event-ext |
|
|
|
message-event = ( "MessageNew" [SP |
|
"(" fetch-att *(SP fetch-att) ")" ] ) |
|
/ "MessageExpunge" |
|
/ "FlagChange" |
|
/ "AnnotationChange" |
|
;; "MessageNew" includes "MessageAppend" from |
|
;; [MSGEVENT]. "FlagChange" is any of |
|
;; "MessageRead", "MessageTrash", "FlagsSet", |
|
;; "FlagsClear" [MSGEVENT]. "MessageExpunge" |
|
;; includes "MessageExpire" [MSGEVENT]. |
|
;; MessageNew and MessageExpunge MUST always |
|
;; be specified together. If FlagChange is |
|
;; specified, then MessageNew and MessageExpunge |
|
;; MUST be specified as well. |
|
;; The fett-att list may only be present for the |
|
;; SELECTED/SELECTED-DELAYED mailbox filter |
|
;; (<filter-mailboxes>). |
|
|
|
mailbox-event = "MailboxName" / |
|
"SubscriptionChange" / "MailboxMetadataChange" |
|
; "SubscriptionChange" includes |
|
; MailboxSubscribe and MailboxUnSubscribe. |
|
; "MailboxName" includes MailboxCreate, |
|
; "MailboxDelete" and "MailboxRename". |
|
|
|
user-event = "ServerMetadataChange" |
|
|
|
event-ext = atom |
|
;; For future extensions |
|
|
|
|
|
; Gulbrandsen, et al. Standards Track [Page 18] |
|
; RFC 5465 IMAP NOTIFY Extension February 2009 |
|
|
|
|
|
oldname-extended-item = "OLDNAME" SP "(" mailbox ")" |
|
;; Extended data item (mbox-list-extended-item) |
|
;; returned in a LIST response when a mailbox is |
|
;; renamed. |
|
;; Note 1: the OLDNAME tag can be returned |
|
;; with or without surrounding quotes, as per |
|
;; mbox-list-extended-item-tag production. |
|
|
|
resp-text-code =/ "NOTIFICATIONOVERFLOW" / |
|
unsupported-events-code |
|
|
|
message-event-name = "MessageNew" / |
|
"MessageExpunge" / "FlagChange" / |
|
"AnnotationChange" |
|
|
|
event-name = message-event-name / mailbox-event / |
|
user-event |
|
|
|
unsupported-events-code = "BADEVENT" |
|
SP "(" event-name *(SP event-name) ")" |
|
|
|
modifier-update = "UPDATE" |
|
[ "(" fetch-att *(SP fetch-att) ")" ] |
|
|
|
mbx-list-oflag =/ "\NoAccess" |
|
|
|
|
|
; ############################################################################ |
|
; RFC 5465 Errata |
|
; Errata ID: 1694 |
|
; Status: Verified |
|
; Type: Editorial |
|
; Publication Format(s) : TEXT |
|
; Reported By: Alfred Hoenes |
|
; Date Reported: 2009-02-23 |
|
; Verifier Name: Alexey Melnikov |
|
; Date Verified: 2009-07-06 |
|
; |
|
; Section 8, pg.18 says: |
|
|
|
message-event = ( "MessageNew" [SP |
|
"(" fetch-att *(SP fetch-att) ")" ] ) |
|
[[...]] |
|
;; The fett-att list may only be present for the |
|
;; SELECTED/SELECTED-DELAYED mailbox filter |
|
;; (<filter-mailboxes>). |
|
|
|
; It should say: |
|
|
|
message-event = ( "MessageNew" [SP |
|
"(" fetch-att *(SP fetch-att) ")" ] ) |
|
[[...]] |
|
;; The fetch-att list may only be present for the |
|
;; SELECTED/SELECTED-DELAYED mailbox filter |
|
;; (<filter-mailboxes>). |
|
|
|
; Notes: |
|
; |
|
; Location is near bottom of page 18. |
|
; |
|
; Rationale: confusing typo; s/fett/fetch/ |
|
|
|
|
|
; ############################################################################ |
|
; Melnikov & King Standards Track [Page 5] |
|
; RFC 5466 IMAP Filters February 2009 |
|
; |
|
; |
|
; language tag consisting of 6 Unicode characters: <U+E0001>, |
|
; <U+E0066>, <U+E0072>, <U+E002D>, <U+E0063>, <U+E0061>. |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; Non-terminals referenced but not defined below are as defined by |
|
; [RFC3501] or [IMAPABNF]. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "FILTERS" |
|
|
|
search-criteria = search-key *(SP search-key) |
|
|
|
search-key =/ "FILTER" SP filter-name |
|
;; New SEARCH criterion for referencing filters |
|
|
|
filter-name = 1*<any ATOM-CHAR except "/"> |
|
;; Note that filter-name disallows UTF-8 or |
|
;; the following characters: "(", ")", "{", |
|
;; " ", "%", "*", "]". See definition of |
|
;; ATOM-CHAR [RFC3501]. |
|
|
|
resp-text-code =/ "UNDEFINED-FILTER" SP filter-name |
|
|
|
|
|
; ############################################################################ |
|
; Cridland Standards Track [Page 5] |
|
; RFC 5524 URLFETCH Binary May 2009 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; This formal syntax uses ABNF as specified in [ABNF], and includes |
|
; productions defined in [URLAUTH], [BINARY], and [IMAP]. |
|
|
|
capability =/ "URLAUTH=BINARY" |
|
|
|
; Command parameters; see Section 3.1 |
|
|
|
urlfetch = "URLFETCH" 1*(SP url-fetch-arg) |
|
|
|
url-fetch-arg = url-fetch-simple / url-fetch-ext |
|
|
|
url-fetch-simple = url-full |
|
; Unextended URLFETCH. |
|
|
|
url-fetch-ext = "(" url-full *(SP url-fetch-param) ")" |
|
; If no url-fetch-param present, as unextended. |
|
|
|
url-fetch-param = "BODY" / "BINARY" / "BODYPARTSTRUCTURE" / atom |
|
|
|
; Response; see Section 3.2 |
|
|
|
urlfetch-data = "*" SP "URLFETCH" |
|
1*(SP (urldata-simple / urldata-ext / |
|
urldata-error)) |
|
|
|
urldata-error = SP url-full SP nil |
|
|
|
urldata-simple = SP url-full SP nstring |
|
; If client issues url-fetch-simple, server MUST respond with |
|
; urldata-simple. |
|
|
|
urldata-ext = SP url-full url-metadata |
|
|
|
url-metadata = 1*(SP "(" url-metadata-el ")") |
|
|
|
|
|
; Cridland Standards Track [Page 6] |
|
; RFC 5524 URLFETCH Binary May 2009 |
|
|
|
|
|
url-metadata-el = url-meta-bodystruct / url-meta-body / |
|
url-meta-binary |
|
|
|
url-meta-bodystruct = "BODYPARTSTRUCTURE" SP body |
|
|
|
url-meta-binary = "BINARY" SP ( nstring / literal8 ) |
|
; If content contains a NUL octet, literal8 MUST be used. |
|
; Otherwise, content SHOULD use nstring. |
|
; On decoding error, NIL should be used. |
|
|
|
url-meta-body = "BODY" SP nstring |
|
|
|
|
|
; ############################################################################ |
|
; Gulbrandsen Standards Track [Page 5] |
|
; RFC 5530 IMAP Response Codes May 2009 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. [RFC3501] defines |
|
; the non-terminal "resp-text-code". |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lowercase characters to define |
|
; token strings is for editorial clarity only. |
|
|
|
resp-text-code =/ "UNAVAILABLE" / "AUTHENTICATIONFAILED" / |
|
"AUTHORIZATIONFAILED" / "EXPIRED" / |
|
"PRIVACYREQUIRED" / "CONTACTADMIN" / "NOPERM" / |
|
"INUSE" / "EXPUNGEISSUED" / "CORRUPTION" / |
|
"SERVERBUG" / "CLIENTBUG" / "CANNOT" / |
|
"LIMIT" / "OVERQUOTA" / "ALREADYEXISTS" / |
|
"NONEXISTENT" |
|
|
|
|
|
; ############################################################################ |
|
; RFC 6855 Obsoletes RFC 5738 (2010) |
|
; |
|
; Resnick, et al. Standards Track [Page 2] |
|
; RFC 6855 IMAP Support for UTF-8 March 2013 |
|
; |
|
; ... |
|
; |
|
; 3. "UTF8=ACCEPT" IMAP Capability and UTF-8 in IMAP Quoted-Strings |
|
; |
|
; The "UTF8=ACCEPT" capability indicates that the server supports the |
|
; ability to open mailboxes containing internationalized messages with |
|
; the "SELECT" and "EXAMINE" commands, and the server can provide UTF-8 |
|
; responses to the "LIST" and "LSUB" commands. This capability also |
|
; affects other IMAP extensions that can return mailbox names or their |
|
; prefixes, such as NAMESPACE [RFC2342] and ACL [RFC4314]. |
|
; |
|
; The "UTF8=ONLY" capability, described in Section 6, implies the |
|
; "UTF8=ACCEPT" capability. A server is said to support "UTF8=ACCEPT" |
|
; if it advertises either "UTF8=ACCEPT" or "UTF8=ONLY". |
|
; |
|
; A client MUST use the "ENABLE" command [RFC5161] with the |
|
; "UTF8=ACCEPT" option (defined in Section 4 below) to indicate to the |
|
; server that the client accepts UTF-8 in quoted-strings and supports |
|
; the "UTF8=ACCEPT" extension. The "ENABLE UTF8=ACCEPT" command is |
|
; only valid in the authenticated state. |
|
; |
|
; The IMAP base specification [RFC3501] forbids the use of 8-bit |
|
; characters in atoms or quoted-strings. Thus, a UTF-8 string can only |
|
; be sent as a literal. This can be inconvenient from a coding |
|
; standpoint, and unless the server offers IMAP non-synchronizing |
|
; literals [RFC2088], this requires an extra round trip for each UTF-8 |
|
; string sent by the client. When the IMAP server supports |
|
; "UTF8=ACCEPT", it supports UTF-8 in quoted-strings with the following |
|
; syntax: |
|
|
|
quoted =/ DQUOTE *uQUOTED-CHAR DQUOTE |
|
; QUOTED-CHAR is not modified, as it will affect |
|
; other RFC 3501 ABNF non-terminals. |
|
|
|
uQUOTED-CHAR = QUOTED-CHAR / UTF8-2 / UTF8-3 / UTF8-4 |
|
|
|
UTF8-2 = <Defined in Section 4 of RFC 3629> |
|
|
|
UTF8-3 = <Defined in Section 4 of RFC 3629> |
|
|
|
UTF8-4 = <Defined in Section 4 of RFC 3629> |
|
|
|
; When this extended quoting mechanism is used by the client, the |
|
; server MUST reject, with a "BAD" response, any octet sequences with |
|
; |
|
; |
|
; Resnick, et al. Standards Track [Page 3] |
|
; RFC 6855 IMAP Support for UTF-8 March 2013 |
|
; |
|
; |
|
; the high bit set that fail to comply with the formal syntax |
|
; requirements of UTF-8 [RFC3629]. The IMAP server MUST NOT send UTF-8 |
|
; in quoted-strings to the client unless the client has indicated |
|
; support for that syntax by using the "ENABLE UTF8=ACCEPT" command. |
|
|
|
|
|
; ############################################################################ |
|
; Melnikov & Sirainen Standards Track [Page 3] |
|
; IMAP4 Extension for Returning STATUS Information in Extended LIST |
|
; RFC 5819 March 2010 |
|
; |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [ABNF]. Terms not defined here are taken |
|
; from [RFC3501] and [LISTEXT]. |
|
|
|
return-option =/ status-option |
|
|
|
status-option = "STATUS" SP "(" status-att *(SP status-att) ")" |
|
;; This ABNF production complies with |
|
;; <option-extension> syntax. |
|
|
|
|
|
; ############################################################################ |
|
; Karp IMAP4 Display-Based Address Sorting [Page 2] |
|
; RFC 5957 July 2010 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. [IMAP] defines the |
|
; non-terminal "capability", and [SORT] defines "sort-key". |
|
|
|
capability =/ "SORT=DISPLAY" |
|
|
|
sort-key =/ "DISPLAYFROM" / "DISPLAYTO" |
|
|
|
|
|
; ############################################################################ |
|
; Leiba & Nicolson Standards Track [Page 8] |
|
; RFC 6154 IMAP LIST: Special-Use Mailboxes March 2011 |
|
; |
|
; ... |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [RFC5234]. |
|
|
|
create-param =/ "USE" SP "(" [use-attr *(SP use-attr)] ")" |
|
; Extends "create-param" from RFC 4466 [RFC4466] |
|
|
|
mbx-list-oflag =/ use-attr |
|
; Extends "mbx-list-oflag" from IMAP base [RFC3501] |
|
|
|
list-select-independent-opt =/ "SPECIAL-USE" |
|
; Extends "list-select-independent-opt" from |
|
; LIST-extended [RFC5258] |
|
|
|
return-option =/ "SPECIAL-USE" |
|
; Extends "return-option" from |
|
; LIST-extended [RFC5258] |
|
|
|
resp-text-code =/ "USEATTR" |
|
; Extends "resp-text-code" from |
|
; IMAP [RFC3501] |
|
|
|
use-attr = "\All" / "\Archive" / "\Drafts" / "\Flagged" / |
|
"\Junk" / "\Sent" / "\Trash" / use-attr-ext |
|
|
|
use-attr-ext = "\" atom |
|
; Reserved for future extensions. Clients |
|
; MUST ignore list attributes they do not understand |
|
; Server implementations MUST NOT generate |
|
; extension attributes except as defined by |
|
; future Standards-Track revisions of or |
|
; extensions to this specification. |
|
|
|
|
|
; ############################################################################ |
|
; Sirainen Standards Track [Page 4] |
|
; RFC 6203 IMAP4 FUZZY Search March 2011 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [ABNF]. It includes definitions from |
|
; [RFC3501], [IMAP-ABNF], and [SORT]. |
|
|
|
capability =/ "SEARCH=FUZZY" |
|
|
|
score = 1*3DIGIT |
|
;; (1 <= n <= 100) |
|
|
|
score-list = "(" [score *(SP score)] ")" |
|
|
|
search-key =/ "FUZZY" SP search-key |
|
|
|
search-return-data =/ "RELEVANCY" SP score-list |
|
;; Conforms to <search-return-data>, from [IMAP-ABNF] |
|
|
|
search-return-opt =/ "RELEVANCY" |
|
;; Conforms to <search-return-opt>, from [IMAP-ABNF] |
|
|
|
sort-key =/ "RELEVANCY" |
|
|
|
|
|
; ############################################################################ |
|
; Gulbrandsen & Freed Standards Track [Page 5] |
|
; RFC 6851 IMAP - MOVE Extension January 2013 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. [RFC3501] defines |
|
; the non-terminals "capability", "command-select", "sequence-set", and |
|
; "mailbox". |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "MOVE" |
|
|
|
command-select =/ move |
|
move = "MOVE" SP sequence-set SP mailbox |
|
uid = "UID" SP (copy / fetch / search / store / move) |
|
|
|
|
|
; ############################################################################ |
|
; Leiba & Melnikov Standards Track [Page 7] |
|
; RFC 7377 IMAP4 Multimailbox SEARCH Extension October 2014 |
|
; |
|
; ... |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) as described in [RFC5234]. Terms not defined here are |
|
; taken from [RFC3501], [RFC5465], or [RFC4466]. |
|
|
|
command-auth =/ esearch |
|
; Update definition from IMAP base [RFC3501]. |
|
; Add new "esearch" command. |
|
|
|
command-select =/ esearch |
|
; Update definition from IMAP base [RFC3501]. |
|
; Add new "esearch" command. |
|
|
|
filter-mailboxes-other =/ ("subtree-one" SP one-or-more-mailbox) |
|
; Update definition from IMAP Notify [RFC5465]. |
|
; Add new "subtree-one" selector. |
|
|
|
filter-mailboxes-selected = "selected" |
|
; Update definition from IMAP Notify [RFC5465]. |
|
; We forbid the use of "selected-delayed". |
|
|
|
one-correlator = ("TAG" SP tag-string) / ("MAILBOX" SP astring) / |
|
("UIDVALIDITY" SP nz-number) |
|
; Each correlator MUST appear exactly once. |
|
|
|
scope-option = scope-option-name [SP scope-option-value] |
|
; No options defined here. Syntax for future extensions. |
|
|
|
scope-option-name = tagged-ext-label |
|
; No options defined here. Syntax for future extensions. |
|
|
|
|
|
; Leiba & Melnikov Standards Track [Page 8] |
|
; RFC 7377 IMAP4 Multimailbox SEARCH Extension October 2014 |
|
|
|
|
|
scope-option-value = tagged-ext-val |
|
; No options defined here. Syntax for future extensions. |
|
|
|
scope-options = scope-option *(SP scope-option) |
|
; A given option may only appear once. |
|
; No options defined here. Syntax for future extensions. |
|
|
|
esearch = "ESEARCH" [SP esearch-source-opts] |
|
[SP search-return-opts] SP search-program |
|
|
|
search-correlator = SP "(" one-correlator *(SP one-correlator) ")" |
|
; Updates definition in IMAP4 ABNF [RFC4466]. |
|
|
|
esearch-source-opts = "IN" SP "(" source-mbox [SP |
|
"(" scope-options ")"] ")" |
|
|
|
source-mbox = filter-mailboxes *(SP filter-mailboxes) |
|
; "filter-mailboxes" is defined in IMAP Notify [RFC5465]. |
|
; See updated definition of filter-mailboxes-other, above. |
|
; See updated definition of filter-mailboxes-selected, above. |
|
|
|
|
|
; ############################################################################ |
|
; SrimushnamB. & Bisht Standards Track [Page 4] |
|
; RFC 7889 The IMAP APPENDLIMIT Extension May 2016 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234] including the core |
|
; rules in Appendix B.1 of that document. [RFC3501] defines the non- |
|
; terminals "capability" and "status-att", and [RFC4466] defines |
|
; "status-att-val". |
|
; |
|
; All alphabetic characters are case insensitive. The use of uppercase |
|
; or lowercase characters to define token strings is for editorial |
|
; clarity only. Implementations MUST accept these strings in a case- |
|
; insensitive fashion. |
|
|
|
capability =/ "APPENDLIMIT" ["=" number] |
|
;; capability is defined in RFC 3501 |
|
|
|
status-att =/ "APPENDLIMIT" |
|
;; status-att is defined in RFC 3501 |
|
|
|
status-att-val =/ "APPENDLIMIT" SP (number / nil) |
|
;; status-att-val is defined in RFC 4466 |
|
|
|
; The number indicates the fixed maximum message size in octets that |
|
; the server will accept. An APPENDLIMIT number of 0 indicates the |
|
; server will not accept any APPEND commands at all for the affected |
|
; mailboxes. |
|
|
|
|
|
; ############################################################################ |
|
; Newman Standards Track [Page 6] |
|
; RFC 8437 IMAP UNAUTHENTICATE for Connection Reuse August 2018 |
|
; |
|
; ... |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF), as described in [RFC5234]. Amended terms are defined in |
|
; [RFC3501]. |
|
|
|
capability =/ "UNAUTHENTICATE" |
|
|
|
command-auth =/ "UNAUTHENTICATE" |
|
|
|
command-select =/ "UNAUTHENTICATE" |
|
|
|
|
|
; ############################################################################ |
|
; Bosch Standards Track [Page 4] |
|
; RFC 8438 IMAP STATUS=SIZE Extension August 2018 |
|
; |
|
; |
|
; 4. Formal Syntax |
|
; |
|
; The following syntax specification augments the grammar specified in |
|
; [IMAP4rev1] and [IMAP4-ABNF]. It uses the Augmented Backus-Naur Form |
|
; (ABNF) notation as specified in [ABNF]. Elements not defined here |
|
; are taken from [IMAP4rev1] and [IMAP4-ABNF]. |
|
|
|
capability =/ "STATUS=SIZE" |
|
|
|
status-att =/ "SIZE" |
|
|
|
status-att-val =/ "SIZE" SP number64 |
|
|
|
number64 = 1*DIGIT |
|
; Unsigned 63-bit integer |
|
; (0 <= n <= 9,223,372,036,854,775,807) |
|
|
|
|
|
; ############################################################################ |
|
; Murchison & Gondwana Standards Track [Page 3] |
|
; RFC 8440 IMAP LIST-MYRIGHTS August 2018 |
|
; |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in [RFC5234]. Terms not defined here are |
|
; taken from [RFC5258]. |
|
|
|
return-option =/ "MYRIGHTS" |
|
|
|
|
|
; ############################################################################ |
|
; Leiba Standards Track [Page 3] |
|
; RFC 8457 IMAP "Important" Keyword and Attribute September 2018 |
|
; |
|
; |
|
; 3.1. Formal Syntax |
|
; |
|
; The following syntax specification adds to the one in Section 6 of |
|
; [RFC6154] using Augmented Backus-Naur Form (ABNF) as described in |
|
; [RFC5234]. Be sure to see the ABNF notes at the beginning of |
|
; Section 9 of [RFC3501]. |
|
|
|
use-attr =/ "\Important" |
|
|
|
|
|
; ############################################################################ |
|
; Gondwana Standards Track [Page 8] |
|
; RFC 8474 IMAP ObjectID September 2018 |
|
; |
|
; ... |
|
; |
|
; 7. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) [RFC5234] notation. Elements not defined here can be |
|
; found in the formal syntax of the ABNF [RFC5234], IMAP [RFC3501], and |
|
; IMAP ABNF extensions [RFC4466] specifications. |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case |
|
; insensitive. The use of uppercase or lowercase characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
; |
|
; Please note specifically that ObjectID values are case sensitive. |
|
; |
|
; |
|
; Gondwana Standards Track [Page 9] |
|
; RFC 8474 IMAP ObjectID September 2018 |
|
|
|
|
|
capability =/ "OBJECTID" |
|
|
|
fetch-att =/ "EMAILID" / "THREADID" |
|
|
|
fetch-emailid-resp = "EMAILID" SP "(" objectid ")" |
|
; follows tagged-ext production from [RFC4466] |
|
|
|
fetch-threadid-resp = "THREADID" SP ( "(" objectid ")" / nil ) |
|
; follows tagged-ext production from [RFC4466] |
|
|
|
msg-att-static =/ fetch-emailid-resp / fetch-threadid-resp |
|
|
|
objectid = 1*255(ALPHA / DIGIT / "_" / "-") |
|
; characters in object identifiers are case |
|
; significant |
|
|
|
resp-text-code =/ "MAILBOXID" SP "(" objectid ")" |
|
; incorporated before the expansion rule of |
|
; atom [SP 1*<any TEXT-CHAR except "]">] |
|
; that appears in [RFC3501] |
|
|
|
search-key =/ "EMAILID" SP objectid / "THREADID" SP objectid |
|
|
|
status-att =/ "MAILBOXID" |
|
|
|
status-att-val =/ "MAILBOXID" SP "(" objectid ")" |
|
; follows tagged-ext production from [RFC4466] |
|
|
|
|
|
; ############################################################################ |
|
; Brandt Standards Track [Page 8] |
|
; RFC 8508 IMAP REPLACE Extension January 2019 |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [RFC5234]. [RFC3501] defines |
|
; the non-terminals "capability","command-select", "mailbox", |
|
; "seq-number", and "uid". [RFC4466] defines the non-terminal |
|
; "append-message". |
|
; |
|
; Except as noted otherwise, all alphabetic characters are case |
|
; insensitive. The use of uppercase or lowercase characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
|
|
capability =/ "REPLACE" |
|
|
|
command-select =/ replace |
|
replace = "REPLACE" SP seq-number SP mailbox append-message |
|
uid =/ "UID" SP replace |
|
|
|
|
|
; ############################################################################ |
|
; Bosch Standards Track [Page 4] |
|
; RFC 8514 IMAP - SAVEDATE Extension January 2019 |
|
; |
|
; ... |
|
; |
|
; 5. Formal Syntax |
|
; |
|
; The following syntax specification augments the grammar specified in |
|
; [IMAP4rev1]. It uses the Augmented Backus-Naur Form (ABNF) notation |
|
; as specified in [ABNF]. Elements not defined here are taken from |
|
; [IMAP4rev1]. |
|
|
|
capability =/ "SAVEDATE" |
|
|
|
fetch-att =/ "SAVEDATE" |
|
|
|
msg-att-static =/ "SAVEDATE" SP (date-time / nil) |
|
|
|
search-key =/ "SAVEDBEFORE" SP date / |
|
"SAVEDON" SP date / |
|
"SAVEDSINCE" SP date / |
|
"SAVEDATESUPPORTED" |
|
|
|
|
|
; ############################################################################ |
|
; https://www.ietf.org/archive/id/draft-ietf-extra-imap-fetch-preview-10.txt |
|
; |
|
; Internet Engineering Task Force (IETF) M. Slusarz |
|
; Request for Comments: 8970 Open-Xchange Inc. |
|
; Category: Standards Track December 2020 |
|
; ISSN: 2070-1721 |
|
; |
|
; IMAP4 Extension: Message Preview Generation |
|
; ... |
|
; |
|
; 6. Formal Syntax |
|
; |
|
; The following syntax specification uses the augmented Backus-Naur |
|
; Form (BNF) as described in ABNF [RFC5234]. It includes definitions |
|
; from IMAP [RFC3501]. |
|
|
|
capability =/ "PREVIEW" |
|
|
|
fetch-att =/ "PREVIEW" [SP "(" preview-mod *(SP |
|
preview-mod) ")"] |
|
|
|
msg-att-dynamic =/ "PREVIEW" SP nstring |
|
|
|
preview-mod = "LAZY" |
|
|
|
|
|
; ############################################################################ |
|
; https://www.ietf.org/archive/id/draft-ietf-extra-imap4rev2-21.txt |
|
; |
|
; Melnikov & Leiba Expires May 27, 2021 [Page 124] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
; |
|
; ... |
|
; |
|
; 9. Formal Syntax |
|
; |
|
; The following syntax specification uses the Augmented Backus-Naur |
|
; Form (ABNF) notation as specified in [ABNF]. |
|
; |
|
; |
|
; Melnikov & Leiba Expires May 27, 2021 [Page 125] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
; |
|
; |
|
; In the case of alternative or optional rules in which a later rule |
|
; overlaps an earlier rule, the rule which is listed earlier MUST take |
|
; priority. For example, "\Seen" when parsed as a flag is the \Seen |
|
; flag name and not a flag-extension, even though "\Seen" can be parsed |
|
; as a flag-extension. Some, but not all, instances of this rule are |
|
; noted below. |
|
; |
|
; Note: [ABNF] rules MUST be followed strictly; in particular: |
|
; |
|
; (1) Except as noted otherwise, all alphabetic characters are case- |
|
; insensitive. The use of upper or lower case characters to define |
|
; token strings is for editorial clarity only. Implementations MUST |
|
; accept these strings in a case-insensitive fashion. |
|
; |
|
; (2) In all cases, SP refers to exactly one space. It is NOT |
|
; permitted to substitute TAB, insert additional spaces, or |
|
; otherwise treat SP as being equivalent to LWSP. |
|
; |
|
; (3) The ASCII NUL character, %x00, MUST NOT be used at any time. |
|
|
|
address = "(" addr-name SP addr-adl SP addr-mailbox SP |
|
addr-host ")" |
|
|
|
addr-adl = nstring |
|
; Holds route from [RFC-5322] obs-route if |
|
; non-NIL |
|
|
|
addr-host = nstring |
|
; NIL indicates [RFC-5322] group syntax. |
|
; Otherwise, holds [RFC-5322] domain name |
|
|
|
addr-mailbox = nstring |
|
; NIL indicates end of [RFC-5322] group; if |
|
; non-NIL and addr-host is NIL, holds |
|
; [RFC-5322] group name. |
|
; Otherwise, holds [RFC-5322] local-part |
|
; after removing [RFC-5322] quoting |
|
|
|
addr-name = nstring |
|
; If non-NIL, holds phrase from [RFC-5322] |
|
; mailbox after removing [RFC-5322] quoting |
|
|
|
append = "APPEND" SP mailbox [SP flag-list] [SP date-time] SP |
|
literal |
|
|
|
append-uid = uniqueid |
|
|
|
astring = 1*ASTRING-CHAR / string |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 126] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
ASTRING-CHAR = ATOM-CHAR / resp-specials |
|
|
|
atom = 1*ATOM-CHAR |
|
|
|
ATOM-CHAR = <any CHAR except atom-specials> |
|
|
|
atom-specials = "(" / ")" / "{" / SP / CTL / list-wildcards / |
|
quoted-specials / resp-specials |
|
|
|
authenticate = "AUTHENTICATE" SP auth-type [SP initial-resp] |
|
*(CRLF base64) |
|
|
|
auth-type = atom |
|
; Defined by [SASL] |
|
|
|
base64 = *(4base64-char) [base64-terminal] |
|
|
|
base64-char = ALPHA / DIGIT / "+" / "/" |
|
; Case-sensitive |
|
|
|
base64-terminal = (2base64-char "==") / (3base64-char "=") |
|
|
|
body = "(" (body-type-1part / body-type-mpart) ")" |
|
|
|
body-extension = nstring / number / number64 / |
|
"(" body-extension *(SP body-extension) ")" |
|
; Future expansion. Client implementations |
|
; MUST accept body-extension fields. Server |
|
; implementations MUST NOT generate |
|
; body-extension fields except as defined by |
|
; future standard or standards-track |
|
; revisions of this specification. |
|
|
|
body-ext-1part = body-fld-md5 [SP body-fld-dsp [SP body-fld-lang |
|
[SP body-fld-loc *(SP body-extension)]]] |
|
; MUST NOT be returned on non-extensible |
|
; "BODY" fetch |
|
|
|
body-ext-mpart = body-fld-param [SP body-fld-dsp [SP body-fld-lang |
|
[SP body-fld-loc *(SP body-extension)]]] |
|
; MUST NOT be returned on non-extensible |
|
; "BODY" fetch |
|
|
|
body-fields = body-fld-param SP body-fld-id SP body-fld-desc SP |
|
body-fld-enc SP body-fld-octets |
|
|
|
body-fld-desc = nstring |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 127] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
body-fld-dsp = "(" string SP body-fld-param ")" / nil |
|
|
|
body-fld-enc = (DQUOTE ("7BIT" / "8BIT" / "BINARY" / "BASE64"/ |
|
"QUOTED-PRINTABLE") DQUOTE) / string |
|
; Content-Transfer-Encoding header field value. |
|
; Defaults to "7BIT" (as per RFC 2045) |
|
; if not present in the body part. |
|
|
|
body-fld-id = nstring |
|
|
|
body-fld-lang = nstring / "(" string *(SP string) ")" |
|
|
|
body-fld-loc = nstring |
|
|
|
body-fld-lines = number64 |
|
|
|
body-fld-md5 = nstring |
|
|
|
body-fld-octets = number |
|
|
|
body-fld-param = "(" string SP string *(SP string SP string) ")" / nil |
|
|
|
body-type-1part = (body-type-basic / body-type-msg / body-type-text) |
|
[SP body-ext-1part] |
|
|
|
body-type-basic = media-basic SP body-fields |
|
; MESSAGE subtype MUST NOT be "RFC822" or "GLOBAL" |
|
|
|
body-type-mpart = 1*body SP media-subtype |
|
[SP body-ext-mpart] |
|
; MULTIPART body part |
|
|
|
body-type-msg = media-message SP body-fields SP envelope |
|
SP body SP body-fld-lines |
|
|
|
body-type-text = media-text SP body-fields SP body-fld-lines |
|
|
|
capability = ("AUTH=" auth-type) / atom |
|
; New capabilities MUST begin with "X" or be |
|
; registered with IANA in |
|
; a standards-track, an experimental |
|
; or an informational RFC. |
|
|
|
capability-data = "CAPABILITY" *(SP capability) SP "IMAP4rev2" |
|
*(SP capability) |
|
; Servers MUST implement the STARTTLS, AUTH=PLAIN, |
|
; and LOGINDISABLED capabilities. |
|
; Servers which offer RFC 1730 compatibility MUST |
|
; list "IMAP4" as the first capability. |
|
; Servers which offer RFC 3501 compatibility MUST |
|
; list "IMAP4rev1" as one of capabilities. |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 128] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
CHAR = <defined in [ABNF]> |
|
|
|
CHAR8 = %x01-ff |
|
; any OCTET except NUL, %x00 |
|
|
|
charset = atom / quoted |
|
|
|
childinfo-extended-item = "CHILDINFO" SP "(" |
|
list-select-base-opt-quoted |
|
*(SP list-select-base-opt-quoted) ")" |
|
; Extended data item (mbox-list-extended-item) |
|
; returned when the RECURSIVEMATCH |
|
; selection option is specified. |
|
; Note 1: the CHILDINFO extended data item tag can be |
|
; returned with and without surrounding quotes, as per |
|
; mbox-list-extended-item-tag production. |
|
; Note 2: The selection options are always returned |
|
; quoted, unlike their specification in |
|
; the extended LIST command. |
|
|
|
child-mbox-flag = "\HasChildren" / "\HasNoChildren" |
|
; attributes for CHILDREN return option, at most one |
|
; possible per LIST response |
|
|
|
command = tag SP (command-any / command-auth / command-nonauth / |
|
command-select) CRLF |
|
; Modal based on state |
|
|
|
command-any = "CAPABILITY" / "LOGOUT" / "NOOP" / enable / x-command |
|
; Valid in all states |
|
|
|
command-auth = append / create / delete / examine / list / |
|
Namespace-Command / |
|
rename / select / status / subscribe / unsubscribe / |
|
idle |
|
; Valid only in Authenticated or Selected state |
|
|
|
command-nonauth = login / authenticate / "STARTTLS" |
|
; Valid only when in Not Authenticated state |
|
|
|
command-select = "CLOSE" / "UNSELECT" / "EXPUNGE" / copy / |
|
move / fetch / store / search / uid |
|
; Valid only when in Selected state |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 129] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
continue-req = "+" SP (resp-text / base64) CRLF |
|
|
|
copy = "COPY" SP sequence-set SP mailbox |
|
|
|
create = "CREATE" SP mailbox |
|
; Use of INBOX gives a NO error |
|
|
|
date = date-text / DQUOTE date-text DQUOTE |
|
|
|
date-day = 1*2DIGIT |
|
; Day of month |
|
|
|
date-day-fixed = (SP DIGIT) / 2DIGIT |
|
; Fixed-format version of date-day |
|
|
|
date-month = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / |
|
"Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec" |
|
|
|
date-text = date-day "-" date-month "-" date-year |
|
|
|
date-year = 4DIGIT |
|
|
|
date-time = DQUOTE date-day-fixed "-" date-month "-" date-year |
|
SP time SP zone DQUOTE |
|
|
|
delete = "DELETE" SP mailbox |
|
; Use of INBOX gives a NO error |
|
|
|
digit-nz = %x31-39 |
|
; 1-9 |
|
|
|
eitem-standard-tag = atom |
|
; a tag for LIST extended data item defined in a Standard |
|
; Track or Experimental RFC. |
|
|
|
eitem-vendor-tag = vendor-token "-" atom |
|
; a vendor-specific tag for LIST extended data item |
|
|
|
enable = "ENABLE" 1*(SP capability) |
|
|
|
enable-data = "ENABLED" *(SP capability) |
|
|
|
envelope = "(" env-date SP env-subject SP env-from SP |
|
env-sender SP env-reply-to SP env-to SP env-cc SP |
|
env-bcc SP env-in-reply-to SP env-message-id ")" |
|
|
|
env-bcc = "(" 1*address ")" / nil |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 130] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
env-cc = "(" 1*address ")" / nil |
|
|
|
env-date = nstring |
|
|
|
env-from = "(" 1*address ")" / nil |
|
|
|
env-in-reply-to = nstring |
|
|
|
env-message-id = nstring |
|
|
|
env-reply-to = "(" 1*address ")" / nil |
|
|
|
env-sender = "(" 1*address ")" / nil |
|
|
|
env-subject = nstring |
|
|
|
env-to = "(" 1*address ")" / nil |
|
|
|
esearch-response = "ESEARCH" [search-correlator] [SP "UID"] |
|
*(SP search-return-data) |
|
; ESEARCH response replaces SEARCH response |
|
; from IMAP4rev1. |
|
|
|
examine = "EXAMINE" SP mailbox |
|
|
|
fetch = "FETCH" SP sequence-set SP ("ALL" / "FULL" / "FAST" / |
|
fetch-att / "(" fetch-att *(SP fetch-att) ")") |
|
|
|
fetch-att = "ENVELOPE" / "FLAGS" / "INTERNALDATE" / |
|
"RFC822.SIZE" / |
|
"BODY" ["STRUCTURE"] / "UID" / |
|
"BODY" section [partial] / |
|
"BODY.PEEK" section [partial] / |
|
"BINARY" [".PEEK"] section-binary [partial] / |
|
"BINARY.SIZE" section-binary |
|
|
|
flag = "\Answered" / "\Flagged" / "\Deleted" / |
|
"\Seen" / "\Draft" / flag-keyword / flag-extension |
|
; Does not include "\Recent" |
|
|
|
flag-extension = "\" atom |
|
; Future expansion. Client implementations |
|
; MUST accept flag-extension flags. Server |
|
; implementations MUST NOT generate |
|
; flag-extension flags except as defined by |
|
; future standard or standards-track |
|
; revisions of this specification. |
|
; "\Recent" was defined in RFC 3501 |
|
; and is now deprecated. |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 131] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
flag-fetch = flag |
|
|
|
flag-keyword = "$MDNSent" / "$Forwarded" / "$Junk" / |
|
"$NotJunk" / "$Phishing" / atom |
|
|
|
flag-list = "(" [flag *(SP flag)] ")" |
|
|
|
flag-perm = flag / "\*" |
|
|
|
greeting = "*" SP (resp-cond-auth / resp-cond-bye) CRLF |
|
|
|
header-fld-name = astring |
|
|
|
header-list = "(" header-fld-name *(SP header-fld-name) ")" |
|
|
|
idle = "IDLE" CRLF "DONE" |
|
|
|
initial-resp = (base64 / "=") |
|
; "initial response" defined in |
|
; Section 5.1 of [RFC4422] |
|
|
|
list = "LIST" [SP list-select-opts] SP mailbox SP mbox-or-pat |
|
[SP list-return-opts] |
|
|
|
|
|
list-mailbox = 1*list-char / string |
|
|
|
list-char = ATOM-CHAR / list-wildcards / resp-specials |
|
|
|
list-return-opts = "RETURN" SP |
|
"(" [return-option *(SP return-option)] ")" |
|
; list return options, e.g., CHILDREN |
|
|
|
list-select-base-opt = "SUBSCRIBED" / option-extension |
|
; options that can be used by themselves |
|
|
|
list-select-base-opt-quoted = DQUOTE list-select-base-opt DQUOTE |
|
|
|
list-select-independent-opt = "REMOTE" / option-extension |
|
; options that do not syntactically interact with |
|
; other options |
|
|
|
list-select-mod-opt = "RECURSIVEMATCH" / option-extension |
|
; options that require a list-select-base-opt |
|
; to also be present |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 132] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
list-select-opt = list-select-base-opt / list-select-independent-opt |
|
/ list-select-mod-opt |
|
; An option registration template is described in |
|
; Section 9.3 of this document. |
|
|
|
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) |
|
|
|
list-wildcards = "%" / "*" |
|
|
|
literal = "{" number64 ["+"] "}" CRLF *CHAR8 |
|
; <number64> represents the number of CHAR8s. |
|
; A non-synchronizing literal is distinguished from |
|
; a synchronizing literal by presence of the "+" |
|
; before the closing "}". |
|
; Non synchronizing literals are not allowed when |
|
; sent from server to the client. |
|
|
|
literal8 = "~{" number64 "}" CRLF *OCTET |
|
; <number64> represents the number of OCTETs |
|
; in the response string. |
|
|
|
login = "LOGIN" SP userid SP password |
|
|
|
mailbox = "INBOX" / astring |
|
; INBOX is case-insensitive. All case variants of |
|
; INBOX (e.g., "iNbOx") MUST be interpreted as INBOX |
|
; not as an astring. An astring which consists of |
|
; the case-insensitive sequence "I" "N" "B" "O" "X" |
|
; is considered to be INBOX and not an astring. |
|
; Refer to section 5.1 for further |
|
; semantic details of mailbox names. |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 133] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
mailbox-data = "FLAGS" SP flag-list / "LIST" SP mailbox-list / |
|
esearch-response / |
|
"STATUS" SP mailbox SP "(" [status-att-list] ")" / |
|
number SP "EXISTS" / Namespace-Response |
|
|
|
mailbox-list = "(" [mbx-list-flags] ")" SP |
|
(DQUOTE QUOTED-CHAR DQUOTE / nil) SP mailbox |
|
[SP mbox-list-extended] |
|
; This is the list information pointed to by the ABNF |
|
; item "mailbox-data", which is defined in [IMAP4] |
|
|
|
mbox-list-extended = "(" [mbox-list-extended-item |
|
*(SP mbox-list-extended-item)] ")" |
|
|
|
mbox-list-extended-item = mbox-list-extended-item-tag SP |
|
tagged-ext-val |
|
|
|
mbox-list-extended-item-tag = astring |
|
; The content MUST conform to either "eitem-vendor-tag" |
|
; or "eitem-standard-tag" ABNF productions. |
|
|
|
mbox-or-pat = list-mailbox / patterns |
|
|
|
mbx-list-flags = *(mbx-list-oflag SP) mbx-list-sflag |
|
*(SP mbx-list-oflag) / |
|
mbx-list-oflag *(SP mbx-list-oflag) |
|
|
|
mbx-list-oflag = "\Noinferiors" / child-mbox-flag / |
|
"\Subscribed" / "\Remote" / flag-extension |
|
; Other flags; multiple possible per LIST response |
|
|
|
mbx-list-sflag = "\NonExistent" / "\Noselect" / "\Marked" / "\Unmarked" |
|
; Selectability flags; only one per LIST response |
|
|
|
media-basic = ((DQUOTE ("APPLICATION" / "AUDIO" / "IMAGE" / |
|
"FONT" / "MESSAGE" / "MODEL" / "VIDEO" ) DQUOTE) |
|
/ string) |
|
SP media-subtype |
|
; Defined in [MIME-IMT]. |
|
; FONT defined in RFC 8081. |
|
|
|
media-message = DQUOTE "MESSAGE" DQUOTE SP |
|
DQUOTE ("RFC822" / "GLOBAL") DQUOTE |
|
; Defined in [MIME-IMT] |
|
|
|
media-subtype = string |
|
; Defined in [MIME-IMT] |
|
|
|
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media-text = DQUOTE "TEXT" DQUOTE SP media-subtype |
|
; Defined in [MIME-IMT] |
|
|
|
message-data = nz-number SP ("EXPUNGE" / ("FETCH" SP msg-att)) |
|
|
|
move = "MOVE" SP sequence-set SP mailbox |
|
|
|
msg-att = "(" (msg-att-dynamic / msg-att-static) |
|
*(SP (msg-att-dynamic / msg-att-static)) ")" |
|
|
|
msg-att-dynamic = "FLAGS" SP "(" [flag-fetch *(SP flag-fetch)] ")" |
|
; MAY change for a message |
|
|
|
msg-att-static = "ENVELOPE" SP envelope / "INTERNALDATE" SP date-time / |
|
"RFC822.SIZE" SP number64 / |
|
"BODY" ["STRUCTURE"] SP body / |
|
"BODY" section ["<" number ">"] SP nstring / |
|
"BINARY" section-binary SP (nstring / literal8) / |
|
"BINARY.SIZE" section-binary SP number / |
|
"UID" SP uniqueid |
|
; MUST NOT change for a message |
|
|
|
name-component = 1*UTF8-CHAR |
|
; MUST NOT contain ".", "/", "%", or "*" |
|
|
|
Namespace = nil / "(" 1*Namespace-Descr ")" |
|
|
|
Namespace-Command = "NAMESPACE" |
|
|
|
Namespace-Descr = "(" string SP |
|
(DQUOTE QUOTED-CHAR DQUOTE / nil) |
|
[Namespace-Response-Extensions] ")" |
|
|
|
Namespace-Response-Extensions = *Namespace-Response-Extension |
|
|
|
Namespace-Response-Extension = SP string SP |
|
"(" string *(SP string) ")" |
|
|
|
Namespace-Response = "NAMESPACE" SP Namespace |
|
SP Namespace SP Namespace |
|
; The first Namespace is the Personal Namespace(s). |
|
; The second Namespace is the Other Users' |
|
; Namespace(s). |
|
; The third Namespace is the Shared Namespace(s). |
|
|
|
nil = "NIL" |
|
|
|
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|
nstring = string / nil |
|
|
|
number = 1*DIGIT |
|
; Unsigned 32-bit integer |
|
; (0 <= n < 4,294,967,296) |
|
|
|
number64 = 1*DIGIT |
|
; Unsigned 63-bit integer |
|
; (0 <= n <= 9,223,372,036,854,775,807) |
|
|
|
nz-number = digit-nz *DIGIT |
|
; Non-zero unsigned 32-bit integer |
|
; (0 < n < 4,294,967,296) |
|
|
|
nz-number64 = digit-nz *DIGIT |
|
; Unsigned 63-bit integer |
|
; (0 < n <= 9,223,372,036,854,775,807) |
|
|
|
|
|
oldname-extended-item = "OLDNAME" SP "(" mailbox ")" |
|
; Extended data item (mbox-list-extended-item) |
|
; returned in a LIST response when a mailbox is |
|
; renamed or deleted. Also returned when |
|
; the server canonicalized the provided mailbox |
|
; name. |
|
; Note 1: the OLDNAME tag can be returned |
|
; with or without surrounding quotes, as per |
|
; mbox-list-extended-item-tag production. |
|
|
|
option-extension = (option-standard-tag / option-vendor-tag) |
|
[SP option-value] |
|
|
|
option-standard-tag = atom |
|
; an option defined in a Standards Track or |
|
; Experimental RFC |
|
|
|
option-val-comp = astring / |
|
option-val-comp *(SP option-val-comp) / |
|
"(" option-val-comp ")" |
|
|
|
option-value = "(" option-val-comp ")" |
|
|
|
option-vendor-tag = vendor-token "-" atom |
|
; a vendor-specific option, non-standard |
|
|
|
partial-range = number64 ["." nz-number64] |
|
; Copied from RFC 5092 (IMAP URL) |
|
; and updated to support 64bit sizes. |
|
|
|
|
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|
|
partial = "<" number64 "." nz-number64 ">" |
|
; Partial FETCH request. 0-based offset of |
|
; the first octet, followed by the number of octets |
|
; in the fragment. |
|
|
|
password = astring |
|
|
|
patterns = "(" list-mailbox ")" |
|
; [RFC5258] supports multiple patterns, |
|
; but this document only requires one |
|
; to be supported. |
|
; If the server is also implementing |
|
; [RFC5258], "patterns" syntax from that |
|
; document must be followed. |
|
|
|
quoted = DQUOTE *QUOTED-CHAR DQUOTE |
|
|
|
QUOTED-CHAR = <any TEXT-CHAR except quoted-specials> / |
|
"\" quoted-specials / UTF8-2 / UTF8-3 / UTF8-4 |
|
|
|
quoted-specials = DQUOTE / "\" |
|
|
|
rename = "RENAME" SP mailbox SP mailbox |
|
; Use of INBOX as a destination gives a NO error |
|
|
|
response = *(continue-req / response-data) response-done |
|
|
|
response-data = "*" SP (resp-cond-state / resp-cond-bye / |
|
mailbox-data / message-data / capability-data / |
|
enable-data) CRLF |
|
|
|
response-done = response-tagged / response-fatal |
|
|
|
response-fatal = "*" SP resp-cond-bye CRLF |
|
; Server closes connection immediately |
|
|
|
response-tagged = tag SP resp-cond-state CRLF |
|
|
|
resp-code-apnd = "APPENDUID" SP nz-number SP append-uid |
|
|
|
resp-code-copy = "COPYUID" SP nz-number SP uid-set SP uid-set |
|
|
|
resp-cond-auth = ("OK" / "PREAUTH") SP resp-text |
|
; Authentication condition |
|
|
|
resp-cond-bye = "BYE" SP resp-text |
|
|
|
resp-cond-state = ("OK" / "NO" / "BAD") SP resp-text |
|
; Status condition |
|
|
|
|
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|
|
resp-specials = "]" |
|
|
|
resp-text = ["[" resp-text-code "]" SP] [text] |
|
|
|
resp-text-code = "ALERT" / |
|
"BADCHARSET" [SP "(" charset *(SP charset) ")" ] / |
|
capability-data / "PARSE" / |
|
"PERMANENTFLAGS" SP |
|
"(" [flag-perm *(SP flag-perm)] ")" / |
|
"READ-ONLY" / "READ-WRITE" / "TRYCREATE" / |
|
"UIDNEXT" SP nz-number / "UIDVALIDITY" SP nz-number / |
|
resp-code-apnd / resp-code-copy / "UIDNOTSTICKY" / |
|
"UNAVAILABLE" / "AUTHENTICATIONFAILED" / |
|
"AUTHORIZATIONFAILED" / "EXPIRED" / |
|
"PRIVACYREQUIRED" / "CONTACTADMIN" / "NOPERM" / |
|
"INUSE" / "EXPUNGEISSUED" / "CORRUPTION" / |
|
"SERVERBUG" / "CLIENTBUG" / "CANNOT" / |
|
"LIMIT" / "OVERQUOTA" / "ALREADYEXISTS" / |
|
"NONEXISTENT" / "NOTSAVED" / "HASCHILDREN" / |
|
"CLOSED" / |
|
"UNKNOWN-CTE" / |
|
atom [SP 1*<any TEXT-CHAR except "]">] |
|
|
|
return-option = "SUBSCRIBED" / "CHILDREN" / status-option / |
|
option-extension |
|
|
|
search = "SEARCH" [search-return-opts] |
|
SP search-program |
|
|
|
search-correlator = SP "(" "TAG" SP tag-string ")" |
|
|
|
search-key = "ALL" / "ANSWERED" / "BCC" SP astring / |
|
"BEFORE" SP date / "BODY" SP astring / |
|
"CC" SP astring / "DELETED" / "FLAGGED" / |
|
"FROM" SP astring / "KEYWORD" SP flag-keyword / |
|
"ON" SP date / "SEEN" / |
|
"SINCE" SP date / "SUBJECT" SP astring / |
|
"TEXT" SP astring / "TO" SP astring / |
|
"UNANSWERED" / "UNDELETED" / "UNFLAGGED" / |
|
"UNKEYWORD" SP flag-keyword / "UNSEEN" / |
|
; Above this line were in [IMAP2] |
|
"DRAFT" / "HEADER" SP header-fld-name SP astring / |
|
"LARGER" SP number64 / "NOT" SP search-key / |
|
"OR" SP search-key SP search-key / |
|
"SENTBEFORE" SP date / "SENTON" SP date / |
|
"SENTSINCE" SP date / "SMALLER" SP number64 / |
|
"UID" SP sequence-set / "UNDRAFT" / sequence-set / |
|
"(" search-key *(SP search-key) ")" |
|
|
|
|
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; Melnikov & Leiba Expires May 27, 2021 [Page 138] |
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; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
search-modifier-name = tagged-ext-label |
|
|
|
search-mod-params = tagged-ext-val |
|
; This non-terminal shows recommended syntax |
|
; for future extensions. |
|
|
|
search-program = ["CHARSET" SP charset SP] |
|
search-key *(SP search-key) |
|
; CHARSET argument to SEARCH MUST be |
|
; registered with IANA. |
|
|
|
search-ret-data-ext = search-modifier-name SP search-return-value |
|
; Note that not every SEARCH return option |
|
; is required to have the corresponding |
|
; ESEARCH return data. |
|
|
|
search-return-data = "MIN" SP nz-number / |
|
"MAX" SP nz-number / |
|
"ALL" SP sequence-set / |
|
"COUNT" SP number / |
|
search-ret-data-ext |
|
; All return data items conform to |
|
; search-ret-data-ext syntax. |
|
; Note that "$" marker is not allowed |
|
; after the ALL return data item. |
|
|
|
search-return-opts = SP "RETURN" SP "(" [search-return-opt |
|
*(SP search-return-opt)] ")" |
|
|
|
search-return-opt = "MIN" / "MAX" / "ALL" / "COUNT" / |
|
"SAVE" / |
|
search-ret-opt-ext |
|
; conforms to generic search-ret-opt-ext |
|
; syntax |
|
|
|
search-ret-opt-ext = search-modifier-name [SP search-mod-params] |
|
|
|
search-return-value = tagged-ext-val |
|
; Data for the returned search option. |
|
; A single "nz-number"/"number"/"number64" value |
|
; can be returned as an atom (i.e., without |
|
; quoting). A sequence-set can be returned |
|
; as an atom as well. |
|
|
|
section = "[" [section-spec] "]" |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 139] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
section-binary = "[" [section-part] "]" |
|
|
|
section-msgtext = "HEADER" / "HEADER.FIELDS" [".NOT"] SP header-list / |
|
"TEXT" |
|
; top-level or MESSAGE/RFC822 or MESSAGE/GLOBAL part |
|
|
|
section-part = nz-number *("." nz-number) |
|
; body part reference. |
|
; Allows for accessing nested body parts. |
|
|
|
section-spec = section-msgtext / (section-part ["." section-text]) |
|
|
|
section-text = section-msgtext / "MIME" |
|
; text other than actual body part (headers, etc.) |
|
|
|
select = "SELECT" SP mailbox |
|
|
|
seq-number = nz-number / "*" |
|
; message sequence number (COPY, FETCH, STORE |
|
; commands) or unique identifier (UID COPY, |
|
; UID FETCH, UID STORE commands). |
|
; * represents the largest number in use. In |
|
; the case of message sequence numbers, it is |
|
; the number of messages in a non-empty mailbox. |
|
; In the case of unique identifiers, it is the |
|
; unique identifier of the last message in the |
|
; mailbox or, if the mailbox is empty, the |
|
; mailbox's current UIDNEXT value. |
|
; The server should respond with a tagged BAD |
|
; response to a command that uses a message |
|
; sequence number greater than the number of |
|
; messages in the selected mailbox. This |
|
; includes "*" if the selected mailbox is empty. |
|
|
|
seq-range = seq-number ":" seq-number |
|
; two seq-number values and all values between |
|
; these two regardless of order. |
|
; Example: 2:4 and 4:2 are equivalent and indicate |
|
; values 2, 3, and 4. |
|
; Example: a unique identifier sequence range of |
|
; 3291:* includes the UID of the last message in |
|
; the mailbox, even if that value is less than 3291. |
|
|
|
sequence-set = (seq-number / seq-range) ["," sequence-set] |
|
; set of seq-number values, regardless of order. |
|
; Servers MAY coalesce overlaps and/or execute the |
|
; sequence in any order. |
|
; Example: a message sequence number set of |
|
; 2,4:7,9,12:* for a mailbox with 15 messages is |
|
; equivalent to 2,4,5,6,7,9,12,13,14,15 |
|
; Example: a message sequence number set of *:4,5:7 |
|
; for a mailbox with 10 messages is equivalent to |
|
; 10,9,8,7,6,5,4,5,6,7 and MAY be reordered and |
|
; overlap coalesced to be 4,5,6,7,8,9,10. |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 140] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
sequence-set =/ seq-last-command |
|
; Allow for "result of the last command" indicator. |
|
|
|
seq-last-command = "$" |
|
|
|
status = "STATUS" SP mailbox SP |
|
"(" status-att *(SP status-att) ")" |
|
|
|
status-att = "MESSAGES" / "UIDNEXT" / "UIDVALIDITY" / |
|
"UNSEEN" / "DELETED" / "SIZE" |
|
|
|
status-att-val = ("MESSAGES" SP number) / |
|
("UIDNEXT" SP nz-number) / |
|
("UIDVALIDITY" SP nz-number) / |
|
("UNSEEN" SP number) / |
|
("DELETED" SP number) / |
|
("SIZE" SP number64) |
|
; Extensions to the STATUS responses |
|
; should extend this production. |
|
; Extensions should use the generic |
|
; syntax defined by tagged-ext. |
|
|
|
status-att-list = status-att-val *(SP status-att-val) |
|
|
|
status-option = "STATUS" SP "(" status-att *(SP status-att) ")" |
|
; This ABNF production complies with |
|
; <option-extension> syntax. |
|
|
|
store = "STORE" SP sequence-set SP store-att-flags |
|
|
|
store-att-flags = (["+" / "-"] "FLAGS" [".SILENT"]) SP |
|
(flag-list / (flag *(SP flag))) |
|
|
|
string = quoted / literal |
|
|
|
subscribe = "SUBSCRIBE" SP mailbox |
|
|
|
tag = 1*<any ASTRING-CHAR except "+"> |
|
|
|
tag-string = astring |
|
; <tag> represented as <astring> |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 141] |
|
; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
tagged-ext-label = tagged-label-fchar *tagged-label-char |
|
; Is a valid RFC 3501 "atom". |
|
|
|
tagged-label-fchar = ALPHA / "-" / "_" / "." |
|
|
|
tagged-label-char = tagged-label-fchar / DIGIT / ":" |
|
|
|
tagged-ext-comp = astring / |
|
tagged-ext-comp *(SP tagged-ext-comp) / |
|
"(" tagged-ext-comp ")" |
|
; Extensions that follow this general |
|
; syntax should use nstring instead of |
|
; astring when appropriate in the context |
|
; of the extension. |
|
; Note that a message set or a "number" |
|
; can always be represented as an "atom". |
|
; An URL should be represented as |
|
; a "quoted" string. |
|
|
|
tagged-ext-simple = sequence-set / number / number64 |
|
|
|
tagged-ext-val = tagged-ext-simple / |
|
"(" [tagged-ext-comp] ")" |
|
|
|
text = 1*(TEXT-CHAR / UTF8-2 / UTF8-3 / UTF8-4) |
|
; Non ASCII text can only be returned |
|
; after ENABLE IMAP4rev2 command |
|
|
|
TEXT-CHAR = <any CHAR except CR and LF> |
|
|
|
time = 2DIGIT ":" 2DIGIT ":" 2DIGIT |
|
; Hours minutes seconds |
|
|
|
uid = "UID" SP |
|
(copy / move / fetch / search / store / uid-expunge) |
|
; Unique identifiers used instead of message |
|
; sequence numbers |
|
|
|
uid-expunge = "EXPUNGE" SP sequence-set |
|
; Unique identifiers used instead of message |
|
; sequence numbers |
|
|
|
uid-set = (uniqueid / uid-range) *("," uid-set) |
|
|
|
uid-range = (uniqueid ":" uniqueid) |
|
; two uniqueid values and all values |
|
; between these two regards of order. |
|
; Example: 2:4 and 4:2 are equivalent. |
|
|
|
|
|
; Melnikov & Leiba Expires May 27, 2021 [Page 142] |
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; Internet-Draft IMAP4rev2 November 2020 |
|
|
|
|
|
uniqueid = nz-number |
|
; Strictly ascending |
|
|
|
unsubscribe = "UNSUBSCRIBE" SP mailbox |
|
|
|
userid = astring |
|
|
|
UTF8-2 = <Defined in Section 4 of RFC 3629> |
|
|
|
UTF8-3 = <Defined in Section 4 of RFC 3629> |
|
|
|
UTF8-4 = <Defined in Section 4 of RFC 3629> |
|
|
|
vendor-token = "vendor." name-component |
|
; Definition copied from RFC 2244. |
|
; MUST be registered with IANA |
|
|
|
x-command = "X" atom <experimental command arguments> |
|
|
|
zone = ("+" / "-") 4DIGIT |
|
; Signed four-digit value of hhmm representing |
|
; hours and minutes east of Greenwich (that is, |
|
; the amount that the given time differs from |
|
; Universal Time). Subtracting the timezone |
|
; from the given time will give the UT form. |
|
; The Universal Time zone is "+0000". |
|
|
|
|
|
set ft=abnf |
