Trusted-path permission checking
[hcoop/domtool2.git] / src / msg.sml
CommitLineData
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
21structure Msg :> MSG = struct
22
23open OpenSSL MsgTypes Slave
24
25val a2i = fn Add => 0
26 | Delete => 1
27 | Modify => 2
28
29val i2a = fn 0 => Add
30 | 1 => Delete
31 | 2 => Modify
32 | _ => raise OpenSSL.OpenSSL "Bad action number to deserialize"
33
5ee41dd0
AC
34fun sendAcl (bio, {user, class, value}) =
35 (OpenSSL.writeString (bio, user);
36 OpenSSL.writeString (bio, class);
37 OpenSSL.writeString (bio, value))
38
39fun 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
44fun sendList f (bio, ls) =
45 (app (fn x =>
46 (OpenSSL.writeInt (bio, 1);
47 f (bio, x))) ls;
48 OpenSSL.writeInt (bio, 0))
49
50fun 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
64fun 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
70fun 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
79fun sendBool (bio, b) =
80 if b then
81 OpenSSL.writeInt (bio, 1)
82 else
83 OpenSSL.writeInt (bio, 0)
84
85fun recvBool bio =
86 case OpenSSL.readInt bio of
87 SOME 0 => SOME false
88 | SOME 1 => SOME true
89 | _ => NONE
90
a95a0107
AC
91fun sendQuery (bio, q) =
92 case q of
93 QApt s => (OpenSSL.writeInt (bio, 0);
94 OpenSSL.writeString (bio, s))
d351d679
AC
95 | QCron s => (OpenSSL.writeInt (bio, 1);
96 OpenSSL.writeString (bio, s))
97 | QFtp s => (OpenSSL.writeInt (bio, 2);
98 OpenSSL.writeString (bio, s))
4d5126e1
AC
99 | QTrustedPath s => (OpenSSL.writeInt (bio, 3);
100 OpenSSL.writeString (bio, s))
a95a0107
AC
101
102fun recvQuery bio =
103 case OpenSSL.readInt bio of
104 SOME n =>
105 (case n of
106 0 => Option.map QApt (OpenSSL.readString bio)
d351d679
AC
107 | 1 => Option.map QCron (OpenSSL.readString bio)
108 | 2 => Option.map QFtp (OpenSSL.readString bio)
4d5126e1 109 | 3 => Option.map QTrustedPath (OpenSSL.readString bio)
a95a0107
AC
110 | _ => NONE)
111 | NONE => NONE
112
36e42cb8
AC
113fun send (bio, m) =
114 case m of
115 MsgOk => OpenSSL.writeInt (bio, 1)
116 | MsgError s => (OpenSSL.writeInt (bio, 2);
117 OpenSSL.writeString (bio, s))
118 | MsgConfig s => (OpenSSL.writeInt (bio, 3);
119 OpenSSL.writeString (bio, s))
120 | MsgFile {action, domain, dir, file} =>
121 (OpenSSL.writeInt (bio, 4);
122 OpenSSL.writeInt (bio, a2i action);
123 OpenSSL.writeString (bio, domain);
124 OpenSSL.writeString (bio, dir);
125 OpenSSL.writeString (bio, file))
126 | MsgDoFiles => OpenSSL.writeInt (bio, 5)
5ee41dd0
AC
127 | MsgGrant acl => (OpenSSL.writeInt (bio, 6);
128 sendAcl (bio, acl))
411a85f2
AC
129 | MsgRevoke acl => (OpenSSL.writeInt (bio, 7);
130 sendAcl (bio, acl))
08a04eb4
AC
131 | MsgListPerms user => (OpenSSL.writeInt (bio, 8);
132 OpenSSL.writeString (bio, user))
133 | MsgPerms classes => (OpenSSL.writeInt (bio, 9);
c53e82e4
AC
134 sendList (fn (bio, (class, values)) =>
135 (OpenSSL.writeString (bio, class);
136 sendList OpenSSL.writeString (bio, values)))
137 (bio, classes))
094877b1
AC
138 | MsgWhoHas {class, value} => (OpenSSL.writeInt (bio, 10);
139 OpenSSL.writeString (bio, class);
140 OpenSSL.writeString (bio, value))
141 | MsgWhoHasResponse users => (OpenSSL.writeInt (bio, 11);
c53e82e4
AC
142 sendList OpenSSL.writeString (bio, users))
143 | MsgMultiConfig codes => (OpenSSL.writeInt (bio, 12);
144 sendList OpenSSL.writeString (bio, codes))
e69e60cc
AC
145 | MsgRmdom doms => (OpenSSL.writeInt (bio, 13);
146 sendList OpenSSL.writeString (bio, doms))
1824f573 147 | MsgRegenerate => OpenSSL.writeInt (bio, 14)
e69e60cc
AC
148 | MsgRmuser dom => (OpenSSL.writeInt (bio, 15);
149 OpenSSL.writeString (bio, dom))
21d921a5
AC
150 | MsgCreateDbUser {dbtype, passwd} => (OpenSSL.writeInt (bio, 16);
151 OpenSSL.writeString (bio, dbtype);
152 sendOption OpenSSL.writeString (bio, passwd))
90dd48df
AC
153 | MsgCreateDbTable {dbtype, dbname} => (OpenSSL.writeInt (bio, 17);
154 OpenSSL.writeString (bio, dbtype);
155 OpenSSL.writeString (bio, dbname))
08688401
AC
156 | MsgNewMailbox {domain, user, passwd, mailbox} =>
157 (OpenSSL.writeInt (bio, 18);
158 OpenSSL.writeString (bio, domain);
159 OpenSSL.writeString (bio, user);
160 OpenSSL.writeString (bio, passwd);
161 OpenSSL.writeString (bio, mailbox))
162 | MsgPasswdMailbox {domain, user, passwd} =>
163 (OpenSSL.writeInt (bio, 19);
164 OpenSSL.writeString (bio, domain);
165 OpenSSL.writeString (bio, user);
166 OpenSSL.writeString (bio, passwd))
167 | MsgRmMailbox {domain, user} =>
168 (OpenSSL.writeInt (bio, 20);
169 OpenSSL.writeString (bio, domain);
170 OpenSSL.writeString (bio, user))
1d3ef80e
AC
171 | MsgListMailboxes domain =>
172 (OpenSSL.writeInt (bio, 21);
173 OpenSSL.writeString (bio, domain))
174 | MsgMailboxes users =>
175 (OpenSSL.writeInt (bio, 22);
2fc6b0dd
AC
176 sendList (fn (bio, {user, mailbox}) =>
177 (OpenSSL.writeString (bio, user);
178 OpenSSL.writeString (bio, mailbox)))
179 (bio, users))
2e96b9d4
AC
180 | MsgSaQuery addr => (OpenSSL.writeInt (bio, 23);
181 OpenSSL.writeString (bio, addr))
182 | MsgSaStatus b => (OpenSSL.writeInt (bio, 24);
183 sendBool (bio, b))
184 | MsgSaSet (addr, b) => (OpenSSL.writeInt (bio, 25);
185 OpenSSL.writeString (bio, addr);
186 sendBool (bio, b))
2bc5ed22
AC
187 | MsgSmtpLogReq domain => (OpenSSL.writeInt (bio, 26);
188 OpenSSL.writeString (bio, domain))
189 | MsgSmtpLogRes domain => (OpenSSL.writeInt (bio, 27);
190 OpenSSL.writeString (bio, domain))
86aa5de7
AC
191 | MsgDbPasswd {dbtype, passwd} => (OpenSSL.writeInt (bio, 28);
192 OpenSSL.writeString (bio, dbtype);
193 OpenSSL.writeString (bio, passwd))
9f27d58f 194 | MsgShutdown => OpenSSL.writeInt (bio, 29)
75585a67
AC
195 | MsgYes => OpenSSL.writeInt (bio, 30)
196 | MsgNo => OpenSSL.writeInt (bio, 31)
a95a0107
AC
197 | MsgQuery q => (OpenSSL.writeInt (bio, 32);
198 sendQuery (bio, q))
36e42cb8
AC
199
200fun checkIt v =
201 case v of
202 NONE => raise OpenSSL.OpenSSL "Bad Msg format"
203 | _ => v
204
205fun recv bio =
206 case OpenSSL.readInt bio of
207 NONE => NONE
208 | SOME n =>
209 checkIt (case n of
210 1 => SOME MsgOk
211 | 2 => Option.map MsgError (OpenSSL.readString bio)
212 | 3 => Option.map MsgConfig (OpenSSL.readString bio)
213 | 4 => (case (OpenSSL.readInt bio,
214 OpenSSL.readString bio,
215 OpenSSL.readString bio,
216 OpenSSL.readString bio) of
217 (SOME action, SOME domain, SOME dir, SOME file) =>
218 SOME (MsgFile {action = i2a action,
219 domain = domain,
220 dir = dir,
221 file = file})
222 | _ => NONE)
223 | 5 => SOME MsgDoFiles
5ee41dd0
AC
224 | 6 => (case recvAcl bio of
225 SOME acl => SOME (MsgGrant acl)
226 | _ => NONE)
411a85f2
AC
227 | 7 => (case recvAcl bio of
228 SOME acl => SOME (MsgRevoke acl)
229 | _ => NONE)
08a04eb4
AC
230 | 8 => (case OpenSSL.readString bio of
231 SOME user => SOME (MsgListPerms user)
232 | _ => NONE)
c53e82e4
AC
233 | 9 => Option.map MsgPerms
234 (recvList (fn bio =>
235 case (OpenSSL.readString bio,
236 recvList OpenSSL.readString bio) of
237 (SOME class, SOME values) => SOME (class, values)
238 | _ => NONE) bio)
094877b1
AC
239 | 10 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
240 (SOME class, SOME value) => SOME (MsgWhoHas {class = class, value = value})
241 | _ => NONE)
c53e82e4
AC
242 | 11 => Option.map MsgWhoHasResponse
243 (recvList OpenSSL.readString bio)
244 | 12 => Option.map MsgMultiConfig
245 (recvList OpenSSL.readString bio)
e69e60cc 246 | 13 => Option.map MsgRmdom (recvList OpenSSL.readString bio)
1824f573 247 | 14 => SOME MsgRegenerate
e69e60cc 248 | 15 => Option.map MsgRmuser (OpenSSL.readString bio)
21d921a5
AC
249 | 16 => (case (OpenSSL.readString bio, recvOption OpenSSL.readString bio) of
250 (SOME dbtype, SOME passwd) =>
251 SOME (MsgCreateDbUser {dbtype = dbtype, passwd = passwd})
252 | _ => NONE)
90dd48df
AC
253 | 17 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
254 (SOME dbtype, SOME dbname) =>
255 SOME (MsgCreateDbTable {dbtype = dbtype, dbname = dbname})
256 | _ => NONE)
08688401
AC
257 | 18 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
258 OpenSSL.readString bio, OpenSSL.readString bio) of
259 (SOME domain, SOME user, SOME passwd, SOME mailbox) =>
260 SOME (MsgNewMailbox {domain = domain, user = user,
261 passwd = passwd, mailbox = mailbox})
262 | _ => NONE)
263 | 19 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
264 OpenSSL.readString bio) of
265 (SOME domain, SOME user, SOME passwd) =>
266 SOME (MsgPasswdMailbox {domain = domain, user = user,
267 passwd = passwd})
268 | _ => NONE)
269 | 20 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
270 (SOME domain, SOME user) =>
271 SOME (MsgRmMailbox {domain = domain, user = user})
272 | _ => NONE)
1d3ef80e 273 | 21 => Option.map MsgListMailboxes (OpenSSL.readString bio)
2fc6b0dd
AC
274 | 22 => Option.map MsgMailboxes (recvList
275 (fn bio =>
276 case (OpenSSL.readString bio,
277 OpenSSL.readString bio) of
278 (SOME user, SOME mailbox) =>
279 SOME {user = user, mailbox = mailbox}
280 | _ => NONE)
281 bio)
2e96b9d4
AC
282 | 23 => Option.map MsgSaQuery (OpenSSL.readString bio)
283 | 24 => Option.map MsgSaStatus (recvBool bio)
284 | 25 => (case (OpenSSL.readString bio, recvBool bio) of
285 (SOME user, SOME b) => SOME (MsgSaSet (user, b))
286 | _ => NONE)
2bc5ed22
AC
287 | 26 => Option.map MsgSmtpLogReq (OpenSSL.readString bio)
288 | 27 => Option.map MsgSmtpLogRes (OpenSSL.readString bio)
86aa5de7
AC
289 | 28 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
290 (SOME dbtype, SOME passwd) =>
291 SOME (MsgDbPasswd {dbtype = dbtype, passwd = passwd})
292 | _ => NONE)
9f27d58f 293 | 29 => SOME MsgShutdown
75585a67
AC
294 | 30 => SOME MsgYes
295 | 31 => SOME MsgNo
a95a0107 296 | 32 => Option.map MsgQuery (recvQuery bio)
36e42cb8
AC
297 | _ => NONE)
298
299end