[hcoop/domtool2.git] / src / msg.sml

(* HCoop Domtool (http://hcoop.sourceforge.net/)
 * Copyright (c) 2006, Adam Chlipala
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *)

(* Network messages *)

structure Msg :> MSG = struct

open OpenSSL MsgTypes Slave

val a2i = fn Add => 0
	   | Delete => 1
	   | Modify => 2

val i2a = fn 0 => Add
	   | 1 => Delete
	   | 2 => Modify
	   | _ => raise OpenSSL.OpenSSL "Bad action number to deserialize"

fun sendAcl (bio, {user, class, value}) =
    (OpenSSL.writeString (bio, user);
     OpenSSL.writeString (bio, class);
     OpenSSL.writeString (bio, value))

fun recvAcl bio =
    case (OpenSSL.readString bio, OpenSSL.readString bio, OpenSSL.readString bio) of
	(SOME user, SOME class, SOME value) => SOME {user = user, class = class, value = value}
      | _ => NONE

fun sendList f (bio, ls) =
    (app (fn x =>
	     (OpenSSL.writeInt (bio, 1);
	      f (bio, x))) ls;
     OpenSSL.writeInt (bio, 0))

fun recvList f bio =
    let
	fun loop ls =
	    case OpenSSL.readInt bio of
		SOME 0 => SOME (rev ls)
	      | SOME 1 =>
		(case f bio of
		     SOME x => loop (x :: ls)
		   | NONE => NONE)
	      | _ => NONE
    in
	loop []
    end

fun sendOption f (bio, opt) =
    case opt of
	NONE => OpenSSL.writeInt (bio, 0)
      | SOME x => (OpenSSL.writeInt (bio, 1);
		   f (bio, x))

fun recvOption f bio =
    case OpenSSL.readInt bio of
	SOME 0 => SOME NONE
      | SOME 1 =>
	(case f bio of
	     SOME x => SOME (SOME x)
	   | NONE => NONE)
      | _ => NONE

fun sendBool (bio, b) =
    if b then
	OpenSSL.writeInt (bio, 1)
    else
	OpenSSL.writeInt (bio, 0)

fun recvBool bio =
    case OpenSSL.readInt bio of
	SOME 0 => SOME false
      | SOME 1 => SOME true
      | _ => NONE

fun sendSockPerm (bio, p) =
    case p of
	Any => OpenSSL.writeInt (bio, 0)
      | Client => OpenSSL.writeInt (bio, 1)
      | Server => OpenSSL.writeInt (bio, 2)
      | Nada => OpenSSL.writeInt (bio, 3)

fun recvSockPerm bio =
    case OpenSSL.readInt bio of
	SOME 0 => SOME Any
      | SOME 1 => SOME Client
      | SOME 2 => SOME Server
      | SOME 3 => SOME Nada
      | _ => NONE

fun sendQuery (bio, q) =
    case q of
	QApt s => (OpenSSL.writeInt (bio, 0);
		   OpenSSL.writeString (bio, s))
      | QCron s => (OpenSSL.writeInt (bio, 1);
		    OpenSSL.writeString (bio, s))
      | QFtp s => (OpenSSL.writeInt (bio, 2);
		   OpenSSL.writeString (bio, s))
      | QTrustedPath s => (OpenSSL.writeInt (bio, 3);
			   OpenSSL.writeString (bio, s))
      | QSocket s => (OpenSSL.writeInt (bio, 4);
		      OpenSSL.writeString (bio, s))

fun recvQuery bio =
    case OpenSSL.readInt bio of
	SOME n =>
	(case n of
	     0 => Option.map QApt (OpenSSL.readString bio)
	   | 1 => Option.map QCron (OpenSSL.readString bio)
	   | 2 => Option.map QFtp (OpenSSL.readString bio)
	   | 3 => Option.map QTrustedPath (OpenSSL.readString bio)
	   | 4 => Option.map QSocket (OpenSSL.readString bio)
	   | _ => NONE)
      | NONE => NONE

fun send (bio, m) =
    case m of
	MsgOk => OpenSSL.writeInt (bio, 1)
      | MsgError s => (OpenSSL.writeInt (bio, 2);
		       OpenSSL.writeString (bio, s))
      | MsgConfig s => (OpenSSL.writeInt (bio, 3);
		       OpenSSL.writeString (bio, s))
      | MsgFile {action, domain, dir, file} =>
	(OpenSSL.writeInt (bio, 4);
	 OpenSSL.writeInt (bio, a2i action);
	 OpenSSL.writeString (bio, domain);
	 OpenSSL.writeString (bio, dir);
	 OpenSSL.writeString (bio, file))
      | MsgDoFiles => OpenSSL.writeInt (bio, 5)
      | MsgGrant acl => (OpenSSL.writeInt (bio, 6);
			 sendAcl (bio, acl))
      | MsgRevoke acl => (OpenSSL.writeInt (bio, 7);
			  sendAcl (bio, acl))
      | MsgListPerms user => (OpenSSL.writeInt (bio, 8);
			      OpenSSL.writeString (bio, user))
      | MsgPerms classes => (OpenSSL.writeInt (bio, 9);
			     sendList (fn (bio, (class, values)) =>
					  (OpenSSL.writeString (bio, class);
					   sendList OpenSSL.writeString (bio, values)))
				      (bio, classes))
      | MsgWhoHas {class, value} => (OpenSSL.writeInt (bio, 10);
				     OpenSSL.writeString (bio, class);
				     OpenSSL.writeString (bio, value))
      | MsgWhoHasResponse users => (OpenSSL.writeInt (bio, 11);
				    sendList OpenSSL.writeString (bio, users))
      | MsgMultiConfig codes => (OpenSSL.writeInt (bio, 12);
				 sendList OpenSSL.writeString (bio, codes))
      | MsgRmdom doms => (OpenSSL.writeInt (bio, 13);
			  sendList OpenSSL.writeString (bio, doms))
      | MsgRegenerate => OpenSSL.writeInt (bio, 14)
      | MsgRmuser dom => (OpenSSL.writeInt (bio, 15);
			  OpenSSL.writeString (bio, dom))
      | MsgCreateDbUser {dbtype, passwd} => (OpenSSL.writeInt (bio, 16);
					     OpenSSL.writeString (bio, dbtype);
					     sendOption OpenSSL.writeString (bio, passwd))
      | MsgCreateDbTable {dbtype, dbname} => (OpenSSL.writeInt (bio, 17);
					      OpenSSL.writeString (bio, dbtype);
					      OpenSSL.writeString (bio, dbname))
      | MsgNewMailbox {domain, user, passwd, mailbox} =>
	(OpenSSL.writeInt (bio, 18);
	 OpenSSL.writeString (bio, domain);
	 OpenSSL.writeString (bio, user);
	 OpenSSL.writeString (bio, passwd);
	 OpenSSL.writeString (bio, mailbox))
      | MsgPasswdMailbox {domain, user, passwd} =>
	(OpenSSL.writeInt (bio, 19);
	 OpenSSL.writeString (bio, domain);
	 OpenSSL.writeString (bio, user);
	 OpenSSL.writeString (bio, passwd))
      | MsgRmMailbox {domain, user} =>
	(OpenSSL.writeInt (bio, 20);
	 OpenSSL.writeString (bio, domain);
	 OpenSSL.writeString (bio, user))
      | MsgListMailboxes domain =>
	(OpenSSL.writeInt (bio, 21);
	 OpenSSL.writeString (bio, domain))
      | MsgMailboxes users =>
	(OpenSSL.writeInt (bio, 22);
	 sendList (fn (bio, {user, mailbox}) =>
			    (OpenSSL.writeString (bio, user);
			     OpenSSL.writeString (bio, mailbox)))
	 (bio, users))
      | MsgSaQuery addr => (OpenSSL.writeInt (bio, 23);
			    OpenSSL.writeString (bio, addr))
      | MsgSaStatus b => (OpenSSL.writeInt (bio, 24);
			  sendBool (bio, b))
      | MsgSaSet (addr, b) => (OpenSSL.writeInt (bio, 25);
			       OpenSSL.writeString (bio, addr);
			       sendBool (bio, b))
      | MsgSmtpLogReq domain => (OpenSSL.writeInt (bio, 26);
				 OpenSSL.writeString (bio, domain))
      | MsgSmtpLogRes domain => (OpenSSL.writeInt (bio, 27);
				 OpenSSL.writeString (bio, domain))
      | MsgDbPasswd {dbtype, passwd} => (OpenSSL.writeInt (bio, 28);
					 OpenSSL.writeString (bio, dbtype);
					 OpenSSL.writeString (bio, passwd))
      | MsgShutdown => OpenSSL.writeInt (bio, 29)
      | MsgYes => OpenSSL.writeInt (bio, 30)
      | MsgNo => OpenSSL.writeInt (bio, 31)
      | MsgQuery q => (OpenSSL.writeInt (bio, 32);
		       sendQuery (bio, q))
      | MsgSocket p => (OpenSSL.writeInt (bio, 33);
			sendSockPerm (bio, p))

fun checkIt v =
    case v of
	NONE => raise OpenSSL.OpenSSL "Bad Msg format"
      | _ => v

fun recv bio =
    case OpenSSL.readInt bio of
	NONE => NONE
      | SOME n =>
	checkIt (case n of
		     1 => SOME MsgOk
		   | 2 => Option.map MsgError (OpenSSL.readString bio)
		   | 3 => Option.map MsgConfig (OpenSSL.readString bio)
		   | 4 => (case (OpenSSL.readInt bio,
				 OpenSSL.readString bio,
				 OpenSSL.readString bio,
				 OpenSSL.readString bio) of
			       (SOME action, SOME domain, SOME dir, SOME file) =>
			       SOME (MsgFile {action = i2a action,
					      domain = domain,
					      dir = dir,
					      file = file})
			     | _ => NONE)
		   | 5 => SOME MsgDoFiles
		   | 6 => (case recvAcl bio of
			       SOME acl => SOME (MsgGrant acl)
			     | _ => NONE)
		   | 7 => (case recvAcl bio of
			       SOME acl => SOME (MsgRevoke acl)
			     | _ => NONE)
		   | 8 => (case OpenSSL.readString bio of
			       SOME user => SOME (MsgListPerms user)
			     | _ => NONE)
		   | 9 => Option.map MsgPerms
				     (recvList (fn bio =>
						   case (OpenSSL.readString bio,
							 recvList OpenSSL.readString bio) of
						       (SOME class, SOME values) => SOME (class, values)
						     | _ => NONE) bio)
		   | 10 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
				(SOME class, SOME value) => SOME (MsgWhoHas {class = class, value = value})
			      | _ => NONE)
		   | 11 => Option.map MsgWhoHasResponse
			   (recvList OpenSSL.readString bio)
		   | 12 => Option.map MsgMultiConfig
			   (recvList OpenSSL.readString bio)
		   | 13 => Option.map MsgRmdom (recvList OpenSSL.readString bio)
		   | 14 => SOME MsgRegenerate
		   | 15 => Option.map MsgRmuser (OpenSSL.readString bio)
		   | 16 => (case (OpenSSL.readString bio, recvOption OpenSSL.readString bio) of
				(SOME dbtype, SOME passwd) =>
				SOME (MsgCreateDbUser {dbtype = dbtype, passwd = passwd})
			      | _ => NONE)
		   | 17 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
				(SOME dbtype, SOME dbname) =>
				SOME (MsgCreateDbTable {dbtype = dbtype, dbname = dbname})
			      | _ => NONE)
		   | 18 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
				  OpenSSL.readString bio, OpenSSL.readString bio) of
				(SOME domain, SOME user, SOME passwd, SOME mailbox) =>
				SOME (MsgNewMailbox {domain = domain, user = user,
						     passwd = passwd, mailbox = mailbox})
			      | _ => NONE)
		   | 19 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
				  OpenSSL.readString bio) of
				(SOME domain, SOME user, SOME passwd) =>
				SOME (MsgPasswdMailbox {domain = domain, user = user,
							passwd = passwd})
			      | _ => NONE)
		   | 20 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
				(SOME domain, SOME user) =>
				SOME (MsgRmMailbox {domain = domain, user = user})
			      | _ => NONE)
		   | 21 => Option.map MsgListMailboxes (OpenSSL.readString bio)
		   | 22 => Option.map MsgMailboxes (recvList
							(fn bio =>
							    case (OpenSSL.readString bio,
								  OpenSSL.readString bio) of
								(SOME user, SOME mailbox) =>
								SOME {user = user, mailbox = mailbox}
							      | _ => NONE)
							bio)
		   | 23 => Option.map MsgSaQuery (OpenSSL.readString bio)
		   | 24 => Option.map MsgSaStatus (recvBool bio)
		   | 25 => (case (OpenSSL.readString bio, recvBool bio) of
				(SOME user, SOME b) => SOME (MsgSaSet (user, b))
			      | _ => NONE)
		   | 26 => Option.map MsgSmtpLogReq (OpenSSL.readString bio)
		   | 27 => Option.map MsgSmtpLogRes (OpenSSL.readString bio)
		   | 28 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
				(SOME dbtype, SOME passwd) =>
				SOME (MsgDbPasswd {dbtype = dbtype, passwd = passwd})
			      | _ => NONE)
		   | 29 => SOME MsgShutdown
		   | 30 => SOME MsgYes
		   | 31 => SOME MsgNo
		   | 32 => Option.map MsgQuery (recvQuery bio)
		   | 33 => Option.map MsgSocket (recvSockPerm bio)
		   | _ => NONE)
	 
end
Commit	Line	Data
36e42cb8 AC	1	(* HCoop Domtool (http://hcoop.sourceforge.net/)
	2	* Copyright (c) 2006, Adam Chlipala
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version 2
	7	* of the License, or (at your option) any later version.
	8	*
	9	* This program is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write to the Free Software
	16	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
	17	*)
	18
	19	(* Network messages *)
	20
	21	structure Msg :> MSG = struct
	22
	23	open OpenSSL MsgTypes Slave
	24
	25	val a2i = fn Add => 0
	26	\| Delete => 1
	27	\| Modify => 2
	28
	29	val i2a = fn 0 => Add
	30	\| 1 => Delete
	31	\| 2 => Modify
	32	\| _ => raise OpenSSL.OpenSSL "Bad action number to deserialize"
	33
5ee41dd0 AC	34	fun sendAcl (bio, {user, class, value}) =
	35	(OpenSSL.writeString (bio, user);
	36	OpenSSL.writeString (bio, class);
	37	OpenSSL.writeString (bio, value))
	38
	39	fun recvAcl bio =
	40	case (OpenSSL.readString bio, OpenSSL.readString bio, OpenSSL.readString bio) of
	41	(SOME user, SOME class, SOME value) => SOME {user = user, class = class, value = value}
	42	\| _ => NONE
	43
c53e82e4 AC	44	fun sendList f (bio, ls) =
	45	(app (fn x =>
	46	(OpenSSL.writeInt (bio, 1);
	47	f (bio, x))) ls;
	48	OpenSSL.writeInt (bio, 0))
	49
	50	fun recvList f bio =
	51	let
	52	fun loop ls =
	53	case OpenSSL.readInt bio of
	54	SOME 0 => SOME (rev ls)
	55	\| SOME 1 =>
	56	(case f bio of
	57	SOME x => loop (x :: ls)
	58	\| NONE => NONE)
	59	\| _ => NONE
	60	in
	61	loop []
	62	end
	63
21d921a5 AC	64	fun sendOption f (bio, opt) =
	65	case opt of
	66	NONE => OpenSSL.writeInt (bio, 0)
	67	\| SOME x => (OpenSSL.writeInt (bio, 1);
	68	f (bio, x))
	69
	70	fun recvOption f bio =
	71	case OpenSSL.readInt bio of
	72	SOME 0 => SOME NONE
	73	\| SOME 1 =>
	74	(case f bio of
	75	SOME x => SOME (SOME x)
	76	\| NONE => NONE)
	77	\| _ => NONE
	78
2e96b9d4 AC	79	fun sendBool (bio, b) =
	80	if b then
	81	OpenSSL.writeInt (bio, 1)
	82	else
	83	OpenSSL.writeInt (bio, 0)
	84
	85	fun recvBool bio =
	86	case OpenSSL.readInt bio of
	87	SOME 0 => SOME false
	88	\| SOME 1 => SOME true
	89	\| _ => NONE
	90
737c68d4 AC	91	fun sendSockPerm (bio, p) =
	92	case p of
	93	Any => OpenSSL.writeInt (bio, 0)
	94	\| Client => OpenSSL.writeInt (bio, 1)
	95	\| Server => OpenSSL.writeInt (bio, 2)
	96	\| Nada => OpenSSL.writeInt (bio, 3)
	97
	98	fun recvSockPerm bio =
	99	case OpenSSL.readInt bio of
	100	SOME 0 => SOME Any
	101	\| SOME 1 => SOME Client
	102	\| SOME 2 => SOME Server
	103	\| SOME 3 => SOME Nada
	104	\| _ => NONE
	105
a95a0107 AC	106	fun sendQuery (bio, q) =
	107	case q of
	108	QApt s => (OpenSSL.writeInt (bio, 0);
	109	OpenSSL.writeString (bio, s))
d351d679 AC	110	\| QCron s => (OpenSSL.writeInt (bio, 1);
	111	OpenSSL.writeString (bio, s))
	112	\| QFtp s => (OpenSSL.writeInt (bio, 2);
	113	OpenSSL.writeString (bio, s))
4d5126e1 AC	114	\| QTrustedPath s => (OpenSSL.writeInt (bio, 3);
4d5126e1 AC	115	OpenSSL.writeString (bio, s))
737c68d4 AC	116	\| QSocket s => (OpenSSL.writeInt (bio, 4);
737c68d4 AC	117	OpenSSL.writeString (bio, s))
a95a0107 AC	118
	119	fun recvQuery bio =
	120	case OpenSSL.readInt bio of
	121	SOME n =>
	122	(case n of
	123	0 => Option.map QApt (OpenSSL.readString bio)
d351d679 AC	124	\| 1 => Option.map QCron (OpenSSL.readString bio)
d351d679 AC	125	\| 2 => Option.map QFtp (OpenSSL.readString bio)
4d5126e1	126	\| 3 => Option.map QTrustedPath (OpenSSL.readString bio)
737c68d4	127	\| 4 => Option.map QSocket (OpenSSL.readString bio)
a95a0107 AC	128	\| _ => NONE)
	129	\| NONE => NONE
	130
36e42cb8 AC	131	fun send (bio, m) =
	132	case m of
	133	MsgOk => OpenSSL.writeInt (bio, 1)
	134	\| MsgError s => (OpenSSL.writeInt (bio, 2);
	135	OpenSSL.writeString (bio, s))
	136	\| MsgConfig s => (OpenSSL.writeInt (bio, 3);
	137	OpenSSL.writeString (bio, s))
	138	\| MsgFile {action, domain, dir, file} =>
	139	(OpenSSL.writeInt (bio, 4);
	140	OpenSSL.writeInt (bio, a2i action);
	141	OpenSSL.writeString (bio, domain);
	142	OpenSSL.writeString (bio, dir);
	143	OpenSSL.writeString (bio, file))
	144	\| MsgDoFiles => OpenSSL.writeInt (bio, 5)
5ee41dd0 AC	145	\| MsgGrant acl => (OpenSSL.writeInt (bio, 6);
5ee41dd0 AC	146	sendAcl (bio, acl))
411a85f2 AC	147	\| MsgRevoke acl => (OpenSSL.writeInt (bio, 7);
411a85f2 AC	148	sendAcl (bio, acl))
08a04eb4 AC	149	\| MsgListPerms user => (OpenSSL.writeInt (bio, 8);
	150	OpenSSL.writeString (bio, user))
	151	\| MsgPerms classes => (OpenSSL.writeInt (bio, 9);
c53e82e4 AC	152	sendList (fn (bio, (class, values)) =>
	153	(OpenSSL.writeString (bio, class);
	154	sendList OpenSSL.writeString (bio, values)))
	155	(bio, classes))
094877b1 AC	156	\| MsgWhoHas {class, value} => (OpenSSL.writeInt (bio, 10);
	157	OpenSSL.writeString (bio, class);
	158	OpenSSL.writeString (bio, value))
	159	\| MsgWhoHasResponse users => (OpenSSL.writeInt (bio, 11);
c53e82e4 AC	160	sendList OpenSSL.writeString (bio, users))
	161	\| MsgMultiConfig codes => (OpenSSL.writeInt (bio, 12);
	162	sendList OpenSSL.writeString (bio, codes))
e69e60cc AC	163	\| MsgRmdom doms => (OpenSSL.writeInt (bio, 13);
e69e60cc AC	164	sendList OpenSSL.writeString (bio, doms))
1824f573	165	\| MsgRegenerate => OpenSSL.writeInt (bio, 14)
e69e60cc AC	166	\| MsgRmuser dom => (OpenSSL.writeInt (bio, 15);
e69e60cc AC	167	OpenSSL.writeString (bio, dom))
21d921a5 AC	168	\| MsgCreateDbUser {dbtype, passwd} => (OpenSSL.writeInt (bio, 16);
	169	OpenSSL.writeString (bio, dbtype);
	170	sendOption OpenSSL.writeString (bio, passwd))
90dd48df AC	171	\| MsgCreateDbTable {dbtype, dbname} => (OpenSSL.writeInt (bio, 17);
	172	OpenSSL.writeString (bio, dbtype);
	173	OpenSSL.writeString (bio, dbname))
08688401 AC	174	\| MsgNewMailbox {domain, user, passwd, mailbox} =>
	175	(OpenSSL.writeInt (bio, 18);
	176	OpenSSL.writeString (bio, domain);
	177	OpenSSL.writeString (bio, user);
	178	OpenSSL.writeString (bio, passwd);
	179	OpenSSL.writeString (bio, mailbox))
	180	\| MsgPasswdMailbox {domain, user, passwd} =>
	181	(OpenSSL.writeInt (bio, 19);
	182	OpenSSL.writeString (bio, domain);
	183	OpenSSL.writeString (bio, user);
	184	OpenSSL.writeString (bio, passwd))
	185	\| MsgRmMailbox {domain, user} =>
	186	(OpenSSL.writeInt (bio, 20);
	187	OpenSSL.writeString (bio, domain);
	188	OpenSSL.writeString (bio, user))
1d3ef80e AC	189	\| MsgListMailboxes domain =>
	190	(OpenSSL.writeInt (bio, 21);
	191	OpenSSL.writeString (bio, domain))
	192	\| MsgMailboxes users =>
	193	(OpenSSL.writeInt (bio, 22);
2fc6b0dd AC	194	sendList (fn (bio, {user, mailbox}) =>
	195	(OpenSSL.writeString (bio, user);
	196	OpenSSL.writeString (bio, mailbox)))
	197	(bio, users))
2e96b9d4 AC	198	\| MsgSaQuery addr => (OpenSSL.writeInt (bio, 23);
	199	OpenSSL.writeString (bio, addr))
	200	\| MsgSaStatus b => (OpenSSL.writeInt (bio, 24);
	201	sendBool (bio, b))
	202	\| MsgSaSet (addr, b) => (OpenSSL.writeInt (bio, 25);
	203	OpenSSL.writeString (bio, addr);
	204	sendBool (bio, b))
2bc5ed22 AC	205	\| MsgSmtpLogReq domain => (OpenSSL.writeInt (bio, 26);
	206	OpenSSL.writeString (bio, domain))
	207	\| MsgSmtpLogRes domain => (OpenSSL.writeInt (bio, 27);
	208	OpenSSL.writeString (bio, domain))
86aa5de7 AC	209	\| MsgDbPasswd {dbtype, passwd} => (OpenSSL.writeInt (bio, 28);
	210	OpenSSL.writeString (bio, dbtype);
	211	OpenSSL.writeString (bio, passwd))
9f27d58f	212	\| MsgShutdown => OpenSSL.writeInt (bio, 29)
75585a67 AC	213	\| MsgYes => OpenSSL.writeInt (bio, 30)
75585a67 AC	214	\| MsgNo => OpenSSL.writeInt (bio, 31)
a95a0107 AC	215	\| MsgQuery q => (OpenSSL.writeInt (bio, 32);
a95a0107 AC	216	sendQuery (bio, q))
737c68d4 AC	217	\| MsgSocket p => (OpenSSL.writeInt (bio, 33);
737c68d4 AC	218	sendSockPerm (bio, p))
36e42cb8 AC	219
	220	fun checkIt v =
	221	case v of
	222	NONE => raise OpenSSL.OpenSSL "Bad Msg format"
	223	\| _ => v
	224
	225	fun recv bio =
	226	case OpenSSL.readInt bio of
	227	NONE => NONE
	228	\| SOME n =>
	229	checkIt (case n of
	230	1 => SOME MsgOk
	231	\| 2 => Option.map MsgError (OpenSSL.readString bio)
	232	\| 3 => Option.map MsgConfig (OpenSSL.readString bio)
	233	\| 4 => (case (OpenSSL.readInt bio,
	234	OpenSSL.readString bio,
	235	OpenSSL.readString bio,
	236	OpenSSL.readString bio) of
	237	(SOME action, SOME domain, SOME dir, SOME file) =>
	238	SOME (MsgFile {action = i2a action,
	239	domain = domain,
	240	dir = dir,
	241	file = file})
	242	\| _ => NONE)
	243	\| 5 => SOME MsgDoFiles
5ee41dd0 AC	244	\| 6 => (case recvAcl bio of
	245	SOME acl => SOME (MsgGrant acl)
	246	\| _ => NONE)
411a85f2 AC	247	\| 7 => (case recvAcl bio of
	248	SOME acl => SOME (MsgRevoke acl)
	249	\| _ => NONE)
08a04eb4 AC	250	\| 8 => (case OpenSSL.readString bio of
	251	SOME user => SOME (MsgListPerms user)
	252	\| _ => NONE)
c53e82e4 AC	253	\| 9 => Option.map MsgPerms
	254	(recvList (fn bio =>
	255	case (OpenSSL.readString bio,
	256	recvList OpenSSL.readString bio) of
	257	(SOME class, SOME values) => SOME (class, values)
	258	\| _ => NONE) bio)
094877b1 AC	259	\| 10 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
	260	(SOME class, SOME value) => SOME (MsgWhoHas {class = class, value = value})
	261	\| _ => NONE)
c53e82e4 AC	262	\| 11 => Option.map MsgWhoHasResponse
	263	(recvList OpenSSL.readString bio)
	264	\| 12 => Option.map MsgMultiConfig
	265	(recvList OpenSSL.readString bio)
e69e60cc	266	\| 13 => Option.map MsgRmdom (recvList OpenSSL.readString bio)
1824f573	267	\| 14 => SOME MsgRegenerate
e69e60cc	268	\| 15 => Option.map MsgRmuser (OpenSSL.readString bio)
21d921a5 AC	269	\| 16 => (case (OpenSSL.readString bio, recvOption OpenSSL.readString bio) of
	270	(SOME dbtype, SOME passwd) =>
	271	SOME (MsgCreateDbUser {dbtype = dbtype, passwd = passwd})
	272	\| _ => NONE)
90dd48df AC	273	\| 17 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
	274	(SOME dbtype, SOME dbname) =>
	275	SOME (MsgCreateDbTable {dbtype = dbtype, dbname = dbname})
	276	\| _ => NONE)
08688401 AC	277	\| 18 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
	278	OpenSSL.readString bio, OpenSSL.readString bio) of
	279	(SOME domain, SOME user, SOME passwd, SOME mailbox) =>
	280	SOME (MsgNewMailbox {domain = domain, user = user,
	281	passwd = passwd, mailbox = mailbox})
	282	\| _ => NONE)
	283	\| 19 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
	284	OpenSSL.readString bio) of
	285	(SOME domain, SOME user, SOME passwd) =>
	286	SOME (MsgPasswdMailbox {domain = domain, user = user,
	287	passwd = passwd})
	288	\| _ => NONE)
	289	\| 20 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
	290	(SOME domain, SOME user) =>
	291	SOME (MsgRmMailbox {domain = domain, user = user})
	292	\| _ => NONE)
1d3ef80e	293	\| 21 => Option.map MsgListMailboxes (OpenSSL.readString bio)
2fc6b0dd AC	294	\| 22 => Option.map MsgMailboxes (recvList
	295	(fn bio =>
	296	case (OpenSSL.readString bio,
	297	OpenSSL.readString bio) of
	298	(SOME user, SOME mailbox) =>
	299	SOME {user = user, mailbox = mailbox}
	300	\| _ => NONE)
	301	bio)
2e96b9d4 AC	302	\| 23 => Option.map MsgSaQuery (OpenSSL.readString bio)
	303	\| 24 => Option.map MsgSaStatus (recvBool bio)
	304	\| 25 => (case (OpenSSL.readString bio, recvBool bio) of
	305	(SOME user, SOME b) => SOME (MsgSaSet (user, b))
	306	\| _ => NONE)
2bc5ed22 AC	307	\| 26 => Option.map MsgSmtpLogReq (OpenSSL.readString bio)
2bc5ed22 AC	308	\| 27 => Option.map MsgSmtpLogRes (OpenSSL.readString bio)
86aa5de7 AC	309	\| 28 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
	310	(SOME dbtype, SOME passwd) =>
	311	SOME (MsgDbPasswd {dbtype = dbtype, passwd = passwd})
	312	\| _ => NONE)
9f27d58f	313	\| 29 => SOME MsgShutdown
75585a67 AC	314	\| 30 => SOME MsgYes
75585a67 AC	315	\| 31 => SOME MsgNo
a95a0107	316	\| 32 => Option.map MsgQuery (recvQuery bio)
737c68d4	317	\| 33 => Option.map MsgSocket (recvSockPerm bio)
36e42cb8 AC	318	\| _ => NONE)
	319
	320	end