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234b917a 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. | |
dac62e84 | 17 | *) |
234b917a AC |
18 | |
19 | (* Main interface *) | |
20 | ||
21 | structure Main :> MAIN = struct | |
22 | ||
36e42cb8 | 23 | open Ast MsgTypes Print |
234b917a | 24 | |
6ae327f8 AC |
25 | structure SM = StringMap |
26 | ||
aa56e112 | 27 | fun init () = Acl.read Config.aclFile |
234b917a | 28 | |
d189ec0e | 29 | fun check' G fname = |
a3698041 AC |
30 | let |
31 | val prog = Parse.parse fname | |
32 | in | |
33 | if !ErrorMsg.anyErrors then | |
d189ec0e | 34 | G |
a3698041 | 35 | else |
aa56e112 | 36 | Tycheck.checkFile G (Defaults.tInit ()) prog |
a3698041 AC |
37 | end |
38 | ||
d189ec0e | 39 | fun basis () = |
234b917a | 40 | let |
d189ec0e AC |
41 | val dir = Posix.FileSys.opendir Config.libRoot |
42 | ||
43 | fun loop files = | |
44 | case Posix.FileSys.readdir dir of | |
d612d62c AC |
45 | NONE => (Posix.FileSys.closedir dir; |
46 | files) | |
d189ec0e AC |
47 | | SOME fname => |
48 | if String.isSuffix ".dtl" fname then | |
d612d62c AC |
49 | loop (OS.Path.joinDirFile {dir = Config.libRoot, |
50 | file = fname} | |
d189ec0e AC |
51 | :: files) |
52 | else | |
53 | loop files | |
54 | ||
55 | val files = loop [] | |
3196000d | 56 | val (_, files) = Order.order files |
d189ec0e | 57 | in |
6ae327f8 AC |
58 | if !ErrorMsg.anyErrors then |
59 | Env.empty | |
60 | else | |
b3159a70 AC |
61 | (Tycheck.allowExterns (); |
62 | foldl (fn (fname, G) => check' G fname) Env.empty files | |
63 | before Tycheck.disallowExterns ()) | |
d189ec0e AC |
64 | end |
65 | ||
66 | fun check fname = | |
67 | let | |
68 | val _ = ErrorMsg.reset () | |
12adf55a | 69 | val _ = Env.preTycheck () |
d189ec0e AC |
70 | |
71 | val b = basis () | |
234b917a AC |
72 | in |
73 | if !ErrorMsg.anyErrors then | |
36e42cb8 | 74 | raise ErrorMsg.Error |
234b917a AC |
75 | else |
76 | let | |
b3159a70 | 77 | val _ = Tycheck.disallowExterns () |
7f012ffd | 78 | val _ = ErrorMsg.reset () |
d189ec0e | 79 | val prog = Parse.parse fname |
234b917a | 80 | in |
492c1cff | 81 | if !ErrorMsg.anyErrors then |
36e42cb8 | 82 | raise ErrorMsg.Error |
492c1cff | 83 | else |
d189ec0e | 84 | let |
aa56e112 | 85 | val G' = Tycheck.checkFile b (Defaults.tInit ()) prog |
d189ec0e | 86 | in |
36e42cb8 AC |
87 | if !ErrorMsg.anyErrors then |
88 | raise ErrorMsg.Error | |
89 | else | |
90 | (G', #3 prog) | |
d189ec0e | 91 | end |
234b917a AC |
92 | end |
93 | end | |
94 | ||
d189ec0e | 95 | fun reduce fname = |
a3698041 | 96 | let |
d189ec0e | 97 | val (G, body) = check fname |
a3698041 AC |
98 | in |
99 | if !ErrorMsg.anyErrors then | |
d189ec0e | 100 | NONE |
a3698041 | 101 | else |
d189ec0e AC |
102 | case body of |
103 | SOME body => | |
104 | let | |
105 | val body' = Reduce.reduceExp G body | |
106 | in | |
107 | (*printd (PD.hovBox (PD.PPS.Rel 0, | |
108 | [PD.string "Result:", | |
109 | PD.space 1, | |
110 | p_exp body']))*) | |
111 | SOME body' | |
112 | end | |
113 | | _ => NONE | |
a3698041 AC |
114 | end |
115 | ||
d189ec0e AC |
116 | fun eval fname = |
117 | case reduce fname of | |
118 | (SOME body') => | |
119 | if !ErrorMsg.anyErrors then | |
36e42cb8 | 120 | raise ErrorMsg.Error |
d189ec0e | 121 | else |
aa56e112 | 122 | Eval.exec (Defaults.eInit ()) body' |
36e42cb8 | 123 | | NONE => raise ErrorMsg.Error |
d189ec0e | 124 | |
3b267643 AC |
125 | val dispatcher = |
126 | Config.dispatcher ^ ":" ^ Int.toString Config.dispatcherPort | |
559e89e9 | 127 | |
5ee41dd0 | 128 | fun requestContext f = |
07cc384c | 129 | let |
a56cc2c3 AC |
130 | val uid = Posix.ProcEnv.getuid () |
131 | val user = Posix.SysDB.Passwd.name (Posix.SysDB.getpwuid uid) | |
5ee41dd0 | 132 | |
a56cc2c3 AC |
133 | val () = Acl.read Config.aclFile |
134 | val () = Domain.setUser user | |
5ee41dd0 AC |
135 | |
136 | val () = f () | |
aa56e112 | 137 | |
aa56e112 | 138 | val context = OpenSSL.context (Config.certDir ^ "/" ^ user ^ ".pem", |
a088cea6 | 139 | Config.keyDir ^ "/" ^ user ^ "/key.pem", |
3b267643 | 140 | Config.trustStore) |
5ee41dd0 AC |
141 | in |
142 | (user, context) | |
143 | end | |
07cc384c | 144 | |
5ee41dd0 AC |
145 | fun requestBio f = |
146 | let | |
147 | val (user, context) = requestContext f | |
148 | in | |
149 | (user, OpenSSL.connect (context, dispatcher)) | |
150 | end | |
151 | ||
152 | fun request fname = | |
153 | let | |
154 | val (user, bio) = requestBio (fn () => ignore (check fname)) | |
559e89e9 | 155 | |
3b267643 AC |
156 | val inf = TextIO.openIn fname |
157 | ||
36e42cb8 | 158 | fun loop lines = |
3b267643 | 159 | case TextIO.inputLine inf of |
36e42cb8 AC |
160 | NONE => String.concat (List.rev lines) |
161 | | SOME line => loop (line :: lines) | |
162 | ||
163 | val code = loop [] | |
559e89e9 | 164 | in |
3b267643 | 165 | TextIO.closeIn inf; |
36e42cb8 AC |
166 | Msg.send (bio, MsgConfig code); |
167 | case Msg.recv bio of | |
168 | NONE => print "Server closed connection unexpectedly.\n" | |
169 | | SOME m => | |
170 | case m of | |
171 | MsgOk => print "Configuration succeeded.\n" | |
172 | | MsgError s => print ("Configuration failed: " ^ s ^ "\n") | |
173 | | _ => print "Unexpected server reply.\n"; | |
3b267643 | 174 | OpenSSL.close bio |
559e89e9 | 175 | end |
aa56e112 | 176 | handle ErrorMsg.Error => () |
559e89e9 | 177 | |
5ee41dd0 AC |
178 | fun requestGrant acl = |
179 | let | |
180 | val (user, bio) = requestBio (fn () => ()) | |
181 | in | |
182 | Msg.send (bio, MsgGrant acl); | |
183 | case Msg.recv bio of | |
184 | NONE => print "Server closed connection unexpectedly.\n" | |
185 | | SOME m => | |
186 | case m of | |
187 | MsgOk => print "Grant succeeded.\n" | |
188 | | MsgError s => print ("Grant failed: " ^ s ^ "\n") | |
189 | | _ => print "Unexpected server reply.\n"; | |
190 | OpenSSL.close bio | |
191 | end | |
192 | ||
411a85f2 AC |
193 | fun requestRevoke acl = |
194 | let | |
195 | val (user, bio) = requestBio (fn () => ()) | |
196 | in | |
197 | Msg.send (bio, MsgRevoke acl); | |
198 | case Msg.recv bio of | |
199 | NONE => print "Server closed connection unexpectedly.\n" | |
200 | | SOME m => | |
201 | case m of | |
202 | MsgOk => print "Revoke succeeded.\n" | |
203 | | MsgError s => print ("Revoke failed: " ^ s ^ "\n") | |
204 | | _ => print "Unexpected server reply.\n"; | |
205 | OpenSSL.close bio | |
206 | end | |
207 | ||
08a04eb4 AC |
208 | fun requestListPerms user = |
209 | let | |
210 | val (_, bio) = requestBio (fn () => ()) | |
211 | in | |
212 | Msg.send (bio, MsgListPerms user); | |
213 | (case Msg.recv bio of | |
214 | NONE => (print "Server closed connection unexpectedly.\n"; | |
215 | NONE) | |
216 | | SOME m => | |
217 | case m of | |
218 | MsgPerms perms => SOME perms | |
219 | | MsgError s => (print ("Listing failed: " ^ s ^ "\n"); | |
220 | NONE) | |
221 | | _ => (print "Unexpected server reply.\n"; | |
222 | NONE)) | |
223 | before OpenSSL.close bio | |
224 | end | |
225 | ||
094877b1 AC |
226 | fun requestWhoHas perm = |
227 | let | |
228 | val (_, bio) = requestBio (fn () => ()) | |
229 | in | |
230 | Msg.send (bio, MsgWhoHas perm); | |
231 | (case Msg.recv bio of | |
232 | NONE => (print "Server closed connection unexpectedly.\n"; | |
233 | NONE) | |
234 | | SOME m => | |
235 | case m of | |
236 | MsgWhoHasResponse users => SOME users | |
237 | | MsgError s => (print ("whohas failed: " ^ s ^ "\n"); | |
238 | NONE) | |
239 | | _ => (print "Unexpected server reply.\n"; | |
240 | NONE)) | |
241 | before OpenSSL.close bio | |
242 | end | |
243 | ||
3b267643 | 244 | fun service () = |
07cc384c | 245 | let |
aa56e112 AC |
246 | val () = Acl.read Config.aclFile |
247 | ||
3b267643 AC |
248 | val context = OpenSSL.context (Config.serverCert, |
249 | Config.serverKey, | |
250 | Config.trustStore) | |
36e42cb8 | 251 | val _ = Domain.set_context context |
3b267643 | 252 | |
60534712 | 253 | val sock = OpenSSL.listen (context, Config.dispatcherPort) |
3b267643 AC |
254 | |
255 | fun loop () = | |
60534712 | 256 | case OpenSSL.accept sock of |
3b267643 AC |
257 | NONE => () |
258 | | SOME bio => | |
259 | let | |
aa56e112 AC |
260 | val user = OpenSSL.peerCN bio |
261 | val () = print ("\nConnection from " ^ user ^ "\n") | |
262 | val () = Domain.setUser user | |
263 | ||
36e42cb8 AC |
264 | fun cmdLoop () = |
265 | case Msg.recv bio of | |
266 | NONE => (OpenSSL.close bio | |
267 | handle OpenSSL.OpenSSL _ => (); | |
268 | loop ()) | |
269 | | SOME m => | |
270 | case m of | |
271 | MsgConfig code => | |
272 | let | |
273 | val _ = print "Configuration:\n" | |
274 | val _ = print code | |
275 | val _ = print "\n" | |
3b267643 | 276 | |
36e42cb8 AC |
277 | val outname = OS.FileSys.tmpName () |
278 | val outf = TextIO.openOut outname | |
279 | in | |
280 | TextIO.output (outf, code); | |
281 | TextIO.closeOut outf; | |
282 | (eval outname; | |
283 | Msg.send (bio, MsgOk)) | |
97665758 AC |
284 | handle ErrorMsg.Error => |
285 | (print "Compilation error\n"; | |
286 | Msg.send (bio, | |
287 | MsgError "Error during configuration evaluation")) | |
288 | | OpenSSL.OpenSSL s => | |
289 | (print "OpenSSL error\n"; | |
290 | Msg.send (bio, | |
291 | MsgError | |
292 | ("Error during configuration evaluation: " | |
293 | ^ s))); | |
5ee41dd0 AC |
294 | OS.FileSys.remove outname; |
295 | (ignore (OpenSSL.readChar bio); | |
296 | OpenSSL.close bio) | |
297 | handle OpenSSL.OpenSSL _ => (); | |
298 | loop () | |
36e42cb8 | 299 | end |
5ee41dd0 AC |
300 | |
301 | | MsgGrant acl => | |
302 | if Acl.query {user = user, class = "group", value = "root"} then | |
303 | ((Acl.grant acl; | |
304 | Acl.write Config.aclFile; | |
411a85f2 AC |
305 | Msg.send (bio, MsgOk); |
306 | print ("Granted permission " ^ #value acl ^ " to " ^ #user acl ^ " in " ^ #class acl ^ ".\n")) | |
5ee41dd0 AC |
307 | handle OpenSSL.OpenSSL s => |
308 | (print "OpenSSL error\n"; | |
309 | Msg.send (bio, | |
310 | MsgError | |
311 | ("Error during granting: " | |
312 | ^ s))); | |
313 | (ignore (OpenSSL.readChar bio); | |
314 | OpenSSL.close bio) | |
315 | handle OpenSSL.OpenSSL _ => (); | |
316 | loop ()) | |
317 | else | |
318 | ((Msg.send (bio, MsgError "Not authorized to grant privileges"); | |
411a85f2 AC |
319 | print "Unauthorized user asked to grant a permission!\n"; |
320 | ignore (OpenSSL.readChar bio); | |
321 | OpenSSL.close bio) | |
322 | handle OpenSSL.OpenSSL _ => (); | |
323 | loop ()) | |
324 | ||
325 | | MsgRevoke acl => | |
326 | if Acl.query {user = user, class = "group", value = "root"} then | |
327 | ((Acl.revoke acl; | |
328 | Acl.write Config.aclFile; | |
329 | Msg.send (bio, MsgOk); | |
330 | print ("Revoked permission " ^ #value acl ^ " from " ^ #user acl ^ " in " ^ #class acl ^ ".\n")) | |
331 | handle OpenSSL.OpenSSL s => | |
332 | (print "OpenSSL error\n"; | |
333 | Msg.send (bio, | |
334 | MsgError | |
335 | ("Error during revocation: " | |
336 | ^ s))); | |
337 | (ignore (OpenSSL.readChar bio); | |
338 | OpenSSL.close bio) | |
339 | handle OpenSSL.OpenSSL _ => (); | |
340 | loop ()) | |
341 | else | |
342 | ((Msg.send (bio, MsgError "Not authorized to revoke privileges"); | |
343 | print "Unauthorized user asked to revoke a permission!\n"; | |
5ee41dd0 AC |
344 | ignore (OpenSSL.readChar bio); |
345 | OpenSSL.close bio) | |
346 | handle OpenSSL.OpenSSL _ => (); | |
347 | loop ()) | |
348 | ||
08a04eb4 AC |
349 | | MsgListPerms user => |
350 | ((Msg.send (bio, MsgPerms (Acl.queryAll user)); | |
351 | print ("Sent permission list for user " ^ user ^ ".\n")) | |
352 | handle OpenSSL.OpenSSL s => | |
353 | (print "OpenSSL error\n"; | |
354 | Msg.send (bio, | |
355 | MsgError | |
356 | ("Error during permission listing: " | |
357 | ^ s))); | |
358 | (ignore (OpenSSL.readChar bio); | |
359 | OpenSSL.close bio) | |
360 | handle OpenSSL.OpenSSL _ => (); | |
361 | loop ()) | |
362 | ||
094877b1 AC |
363 | | MsgWhoHas perm => |
364 | ((Msg.send (bio, MsgWhoHasResponse (Acl.whoHas perm)); | |
365 | print ("Sent whohas response for " ^ #class perm ^ " / " ^ #value perm ^ ".\n")) | |
366 | handle OpenSSL.OpenSSL s => | |
367 | (print "OpenSSL error\n"; | |
368 | Msg.send (bio, | |
369 | MsgError | |
370 | ("Error during whohas: " | |
371 | ^ s))); | |
372 | (ignore (OpenSSL.readChar bio); | |
373 | OpenSSL.close bio) | |
374 | handle OpenSSL.OpenSSL _ => (); | |
375 | loop ()) | |
376 | ||
36e42cb8 AC |
377 | | _ => |
378 | (Msg.send (bio, MsgError "Unexpected command") | |
379 | handle OpenSSL.OpenSSL _ => (); | |
380 | OpenSSL.close bio | |
381 | handle OpenSSL.OpenSSL _ => (); | |
382 | loop ()) | |
383 | in | |
384 | cmdLoop () | |
385 | end | |
97665758 AC |
386 | handle OpenSSL.OpenSSL s => |
387 | (print ("OpenSSL error: " ^ s ^ "\n"); | |
388 | OpenSSL.close bio | |
389 | handle OpenSSL.OpenSSL _ => (); | |
390 | loop ()) | |
391 | | OS.SysErr (s, _) => | |
392 | (print ("System error: " ^ s ^ "\n"); | |
393 | OpenSSL.close bio | |
394 | handle OpenSSL.OpenSSL _ => (); | |
395 | loop ()) | |
36e42cb8 | 396 | in |
361a1e7f | 397 | print "Listening for connections....\n"; |
36e42cb8 AC |
398 | loop (); |
399 | OpenSSL.shutdown sock | |
400 | end | |
401 | ||
402 | fun slave () = | |
403 | let | |
6e62228d | 404 | val host = Slave.hostname () |
36e42cb8 AC |
405 | |
406 | val context = OpenSSL.context (Config.certDir ^ "/" ^ host ^ ".pem", | |
a088cea6 | 407 | Config.keyDir ^ "/" ^ host ^ "/key.pem", |
36e42cb8 AC |
408 | Config.trustStore) |
409 | ||
410 | val sock = OpenSSL.listen (context, Config.slavePort) | |
411 | ||
412 | fun loop () = | |
413 | case OpenSSL.accept sock of | |
414 | NONE => () | |
415 | | SOME bio => | |
416 | let | |
417 | val peer = OpenSSL.peerCN bio | |
418 | val () = print ("\nConnection from " ^ peer ^ "\n") | |
3b267643 | 419 | in |
36e42cb8 AC |
420 | if peer <> Config.dispatcherName then |
421 | (print "Not authorized!\n"; | |
422 | OpenSSL.close bio; | |
423 | loop ()) | |
424 | else let | |
425 | fun loop' files = | |
426 | case Msg.recv bio of | |
427 | NONE => print "Dispatcher closed connection unexpectedly\n" | |
428 | | SOME m => | |
429 | case m of | |
430 | MsgFile file => loop' (file :: files) | |
431 | | MsgDoFiles => (Slave.handleChanges files; | |
432 | Msg.send (bio, MsgOk)) | |
433 | | _ => (print "Dispatcher sent unexpected command\n"; | |
434 | Msg.send (bio, MsgError "Unexpected command")) | |
435 | in | |
436 | loop' []; | |
437 | ignore (OpenSSL.readChar bio); | |
438 | OpenSSL.close bio; | |
439 | loop () | |
440 | end | |
3196000d AC |
441 | end handle OpenSSL.OpenSSL s => |
442 | (print ("OpenSSL error: "^ s ^ "\n"); | |
443 | OpenSSL.close bio | |
444 | handle OpenSSL.OpenSSL _ => (); | |
445 | loop ()) | |
7af7d4cb AC |
446 | | OS.SysErr (s, _) => |
447 | (print ("System error: "^ s ^ "\n"); | |
448 | OpenSSL.close bio | |
449 | handle OpenSSL.OpenSSL _ => (); | |
450 | loop ()) | |
07cc384c | 451 | in |
3b267643 AC |
452 | loop (); |
453 | OpenSSL.shutdown sock | |
07cc384c AC |
454 | end |
455 | ||
3196000d AC |
456 | fun autodocBasis outdir = |
457 | let | |
458 | val dir = Posix.FileSys.opendir Config.libRoot | |
459 | ||
460 | fun loop files = | |
461 | case Posix.FileSys.readdir dir of | |
462 | NONE => (Posix.FileSys.closedir dir; | |
463 | files) | |
464 | | SOME fname => | |
465 | if String.isSuffix ".dtl" fname then | |
466 | loop (OS.Path.joinDirFile {dir = Config.libRoot, | |
467 | file = fname} | |
468 | :: files) | |
469 | else | |
470 | loop files | |
471 | ||
472 | val files = loop [] | |
473 | in | |
474 | Autodoc.autodoc {outdir = outdir, infiles = files} | |
475 | end | |
476 | ||
234b917a | 477 | end |