| 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 |