6fdda0adddd0afa67e3a3cab0511585f9098a77b
[hcoop/domtool2.git] / src / msg.sml
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
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
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
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
79 fun send (bio, m) =
80 case m of
81 MsgOk => OpenSSL.writeInt (bio, 1)
82 | MsgError s => (OpenSSL.writeInt (bio, 2);
83 OpenSSL.writeString (bio, s))
84 | MsgConfig s => (OpenSSL.writeInt (bio, 3);
85 OpenSSL.writeString (bio, s))
86 | MsgFile {action, domain, dir, file} =>
87 (OpenSSL.writeInt (bio, 4);
88 OpenSSL.writeInt (bio, a2i action);
89 OpenSSL.writeString (bio, domain);
90 OpenSSL.writeString (bio, dir);
91 OpenSSL.writeString (bio, file))
92 | MsgDoFiles => OpenSSL.writeInt (bio, 5)
93 | MsgGrant acl => (OpenSSL.writeInt (bio, 6);
94 sendAcl (bio, acl))
95 | MsgRevoke acl => (OpenSSL.writeInt (bio, 7);
96 sendAcl (bio, acl))
97 | MsgListPerms user => (OpenSSL.writeInt (bio, 8);
98 OpenSSL.writeString (bio, user))
99 | MsgPerms classes => (OpenSSL.writeInt (bio, 9);
100 sendList (fn (bio, (class, values)) =>
101 (OpenSSL.writeString (bio, class);
102 sendList OpenSSL.writeString (bio, values)))
103 (bio, classes))
104 | MsgWhoHas {class, value} => (OpenSSL.writeInt (bio, 10);
105 OpenSSL.writeString (bio, class);
106 OpenSSL.writeString (bio, value))
107 | MsgWhoHasResponse users => (OpenSSL.writeInt (bio, 11);
108 sendList OpenSSL.writeString (bio, users))
109 | MsgMultiConfig codes => (OpenSSL.writeInt (bio, 12);
110 sendList OpenSSL.writeString (bio, codes))
111 | MsgRmdom doms => (OpenSSL.writeInt (bio, 13);
112 sendList OpenSSL.writeString (bio, doms))
113 | MsgRegenerate => OpenSSL.writeInt (bio, 14)
114 | MsgRmuser dom => (OpenSSL.writeInt (bio, 15);
115 OpenSSL.writeString (bio, dom))
116 | MsgCreateDbUser {dbtype, passwd} => (OpenSSL.writeInt (bio, 16);
117 OpenSSL.writeString (bio, dbtype);
118 sendOption OpenSSL.writeString (bio, passwd))
119 | MsgCreateDbTable {dbtype, dbname} => (OpenSSL.writeInt (bio, 17);
120 OpenSSL.writeString (bio, dbtype);
121 OpenSSL.writeString (bio, dbname))
122 | MsgNewMailbox {domain, user, passwd, mailbox} =>
123 (OpenSSL.writeInt (bio, 18);
124 OpenSSL.writeString (bio, domain);
125 OpenSSL.writeString (bio, user);
126 OpenSSL.writeString (bio, passwd);
127 OpenSSL.writeString (bio, mailbox))
128 | MsgPasswdMailbox {domain, user, passwd} =>
129 (OpenSSL.writeInt (bio, 19);
130 OpenSSL.writeString (bio, domain);
131 OpenSSL.writeString (bio, user);
132 OpenSSL.writeString (bio, passwd))
133 | MsgRmMailbox {domain, user} =>
134 (OpenSSL.writeInt (bio, 20);
135 OpenSSL.writeString (bio, domain);
136 OpenSSL.writeString (bio, user))
137 | MsgListMailboxes domain =>
138 (OpenSSL.writeInt (bio, 21);
139 OpenSSL.writeString (bio, domain))
140 | MsgMailboxes users =>
141 (OpenSSL.writeInt (bio, 22);
142 sendList OpenSSL.writeString (bio, users))
143
144 fun checkIt v =
145 case v of
146 NONE => raise OpenSSL.OpenSSL "Bad Msg format"
147 | _ => v
148
149 fun recv bio =
150 case OpenSSL.readInt bio of
151 NONE => NONE
152 | SOME n =>
153 checkIt (case n of
154 1 => SOME MsgOk
155 | 2 => Option.map MsgError (OpenSSL.readString bio)
156 | 3 => Option.map MsgConfig (OpenSSL.readString bio)
157 | 4 => (case (OpenSSL.readInt bio,
158 OpenSSL.readString bio,
159 OpenSSL.readString bio,
160 OpenSSL.readString bio) of
161 (SOME action, SOME domain, SOME dir, SOME file) =>
162 SOME (MsgFile {action = i2a action,
163 domain = domain,
164 dir = dir,
165 file = file})
166 | _ => NONE)
167 | 5 => SOME MsgDoFiles
168 | 6 => (case recvAcl bio of
169 SOME acl => SOME (MsgGrant acl)
170 | _ => NONE)
171 | 7 => (case recvAcl bio of
172 SOME acl => SOME (MsgRevoke acl)
173 | _ => NONE)
174 | 8 => (case OpenSSL.readString bio of
175 SOME user => SOME (MsgListPerms user)
176 | _ => NONE)
177 | 9 => Option.map MsgPerms
178 (recvList (fn bio =>
179 case (OpenSSL.readString bio,
180 recvList OpenSSL.readString bio) of
181 (SOME class, SOME values) => SOME (class, values)
182 | _ => NONE) bio)
183 | 10 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
184 (SOME class, SOME value) => SOME (MsgWhoHas {class = class, value = value})
185 | _ => NONE)
186 | 11 => Option.map MsgWhoHasResponse
187 (recvList OpenSSL.readString bio)
188 | 12 => Option.map MsgMultiConfig
189 (recvList OpenSSL.readString bio)
190 | 13 => Option.map MsgRmdom (recvList OpenSSL.readString bio)
191 | 14 => SOME MsgRegenerate
192 | 15 => Option.map MsgRmuser (OpenSSL.readString bio)
193 | 16 => (case (OpenSSL.readString bio, recvOption OpenSSL.readString bio) of
194 (SOME dbtype, SOME passwd) =>
195 SOME (MsgCreateDbUser {dbtype = dbtype, passwd = passwd})
196 | _ => NONE)
197 | 17 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
198 (SOME dbtype, SOME dbname) =>
199 SOME (MsgCreateDbTable {dbtype = dbtype, dbname = dbname})
200 | _ => NONE)
201 | 18 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
202 OpenSSL.readString bio, OpenSSL.readString bio) of
203 (SOME domain, SOME user, SOME passwd, SOME mailbox) =>
204 SOME (MsgNewMailbox {domain = domain, user = user,
205 passwd = passwd, mailbox = mailbox})
206 | _ => NONE)
207 | 19 => (case (OpenSSL.readString bio, OpenSSL.readString bio,
208 OpenSSL.readString bio) of
209 (SOME domain, SOME user, SOME passwd) =>
210 SOME (MsgPasswdMailbox {domain = domain, user = user,
211 passwd = passwd})
212 | _ => NONE)
213 | 20 => (case (OpenSSL.readString bio, OpenSSL.readString bio) of
214 (SOME domain, SOME user) =>
215 SOME (MsgRmMailbox {domain = domain, user = user})
216 | _ => NONE)
217 | 21 => Option.map MsgListMailboxes (OpenSSL.readString bio)
218 | 22 => Option.map MsgMailboxes (recvList OpenSSL.readString bio)
219 | _ => NONE)
220
221 end