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a3698041 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 | *) |
a3698041 AC |
18 | |
19 | (* Domain-related primitive actions *) | |
20 | ||
21 | structure Domain :> DOMAIN = struct | |
22 | ||
2ed6d0e5 | 23 | structure SM = DataStructures.StringMap |
12adf55a | 24 | structure SS = DataStructures.StringSet |
2ed6d0e5 | 25 | |
12adf55a | 26 | val nodes = map #1 Config.nodeIps |
2ed6d0e5 AC |
27 | val nodeMap = foldl (fn ((node, ip), mp) => SM.insert (mp, node, ip)) |
28 | SM.empty Config.nodeIps | |
8a7c40fa | 29 | fun nodeIp node = valOf (SM.find (nodeMap, node)) |
2ed6d0e5 | 30 | |
12adf55a AC |
31 | val usr = ref "" |
32 | fun setUser ur = usr := ur | |
33 | fun getUser () = !usr | |
34 | ||
35 | val your_doms = ref SS.empty | |
36 | fun your_domains () = !your_doms | |
37 | ||
8a7c40fa AC |
38 | val your_usrs = ref SS.empty |
39 | fun your_users () = !your_usrs | |
40 | ||
41 | val your_grps = ref SS.empty | |
42 | fun your_groups () = !your_grps | |
43 | ||
44 | val your_pths = ref SS.empty | |
45 | fun your_paths () = !your_pths | |
46 | ||
6ae327f8 AC |
47 | fun validIp s = |
48 | case map Int.fromString (String.fields (fn ch => ch = #".") s) of | |
49 | [SOME n1, SOME n2, SOME n3, SOME n4] => | |
50 | n1 >= 0 andalso n1 < 256 andalso n2 >= 0 andalso n2 < 256 andalso n3 >= 0 andalso n3 < 256 andalso n4 >= 0 andalso n4 < 256 | |
51 | | _ => false | |
52 | ||
629a34f6 AC |
53 | fun isIdent ch = Char.isLower ch orelse Char.isDigit ch |
54 | ||
55 | fun validHost s = | |
56 | size s > 0 andalso size s < 20 | |
57 | andalso CharVector.all (fn ch => isIdent ch orelse ch = #"-") s | |
58 | ||
59 | fun validDomain s = | |
60 | size s > 0 andalso size s < 100 | |
61 | andalso List.all validHost (String.fields (fn ch => ch = #".") s) | |
62 | ||
2ed6d0e5 | 63 | fun validNode s = List.exists (fn s' => s = s') nodes |
e0b0abd2 | 64 | |
12adf55a | 65 | fun yourDomain s = SS.member (your_domains (), s) |
8a7c40fa AC |
66 | fun yourUser s = SS.member (your_users (), s) |
67 | fun yourGroup s = SS.member (your_groups (), s) | |
68 | fun yourPath path = | |
69 | List.all (fn s => s <> "..") (String.fields (fn ch => ch = #"/") path) | |
70 | andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"." orelse ch = #"/" | |
71 | orelse ch = #"-" orelse ch = #"_") path | |
72 | andalso SS.exists (fn s' => path = s' orelse String.isPrefix (s' ^ "/") path) (your_paths ()) | |
12adf55a | 73 | |
f8dfbbcc AC |
74 | val _ = Env.type_one "no_spaces" |
75 | Env.string | |
76 | (CharVector.all (fn ch => not (Char.isSpace ch))) | |
77 | ||
6ae327f8 AC |
78 | val _ = Env.type_one "ip" |
79 | Env.string | |
80 | validIp | |
81 | ||
629a34f6 AC |
82 | val _ = Env.type_one "host" |
83 | Env.string | |
84 | validHost | |
85 | ||
86 | val _ = Env.type_one "domain" | |
87 | Env.string | |
88 | validDomain | |
89 | ||
12adf55a AC |
90 | val _ = Env.type_one "your_domain" |
91 | Env.string | |
92 | yourDomain | |
93 | ||
8a7c40fa AC |
94 | val _ = Env.type_one "your_user" |
95 | Env.string | |
96 | yourUser | |
97 | ||
98 | val _ = Env.type_one "your_group" | |
99 | Env.string | |
100 | yourGroup | |
101 | ||
102 | val _ = Env.type_one "your_path" | |
103 | Env.string | |
104 | yourPath | |
105 | ||
e0b0abd2 AC |
106 | val _ = Env.type_one "node" |
107 | Env.string | |
108 | validNode | |
109 | ||
a3698041 AC |
110 | open Ast |
111 | ||
6ae327f8 AC |
112 | val dl = ErrorMsg.dummyLoc |
113 | ||
114 | val nsD = (EString Config.defaultNs, dl) | |
115 | val serialD = (EVar "serialAuto", dl) | |
116 | val refD = (EInt Config.defaultRefresh, dl) | |
117 | val retD = (EInt Config.defaultRetry, dl) | |
118 | val expD = (EInt Config.defaultExpiry, dl) | |
119 | val minD = (EInt Config.defaultMinimum, dl) | |
120 | ||
121 | val soaD = multiApp ((EVar "soa", dl), | |
122 | dl, | |
123 | [nsD, serialD, refD, retD, expD, minD]) | |
124 | ||
e0b0abd2 AC |
125 | val masterD = (EApp ((EVar "internalMaster", dl), |
126 | (EString Config.defaultNode, dl)), | |
127 | dl) | |
128 | ||
6ae327f8 AC |
129 | val _ = Main.registerDefault ("DNS", |
130 | (TBase "dnsKind", dl), | |
8a7c40fa | 131 | (fn () => multiApp ((EVar "useDns", dl), |
e0b0abd2 AC |
132 | dl, |
133 | [soaD, masterD, (EList [], dl)]))) | |
6ae327f8 AC |
134 | |
135 | val _ = Main.registerDefault ("TTL", | |
136 | (TBase "int", dl), | |
8a7c40fa | 137 | (fn () => (EInt Config.Bind.defaultTTL, dl))) |
6ae327f8 AC |
138 | |
139 | type soa = {ns : string, | |
140 | serial : int option, | |
141 | ref : int, | |
142 | ret : int, | |
143 | exp : int, | |
144 | min : int} | |
145 | ||
146 | val serial = fn (EVar "serialAuto", _) => SOME NONE | |
147 | | (EApp ((EVar "serialConst", _), n), _) => Option.map SOME (Env.int n) | |
148 | | _ => NONE | |
149 | ||
150 | val soa = fn (EApp ((EApp ((EApp ((EApp ((EApp ((EApp | |
151 | ((EVar "soa", _), ns), _), | |
152 | sl), _), | |
153 | rf), _), | |
154 | ret), _), | |
155 | exp), _), | |
156 | min), _) => | |
157 | (case (Env.string ns, serial sl, Env.int rf, | |
158 | Env.int ret, Env.int exp, Env.int min) of | |
159 | (SOME ns, SOME sl, SOME rf, | |
160 | SOME ret, SOME exp, SOME min) => | |
161 | SOME {ns = ns, | |
162 | serial = sl, | |
163 | ref = rf, | |
164 | ret = ret, | |
165 | exp = exp, | |
166 | min = min} | |
167 | | _ => NONE) | |
168 | | _ => NONE | |
169 | ||
e0b0abd2 AC |
170 | datatype master = |
171 | ExternalMaster of string | |
172 | | InternalMaster of string | |
173 | ||
174 | val master = fn (EApp ((EVar "externalMaster", _), e), _) => Option.map ExternalMaster (Env.string e) | |
175 | | (EApp ((EVar "internalMaster", _), e), _) => Option.map InternalMaster (Env.string e) | |
176 | | _ => NONE | |
177 | ||
6ae327f8 | 178 | datatype dnsKind = |
e0b0abd2 AC |
179 | UseDns of {soa : soa, |
180 | master : master, | |
181 | slaves : string list} | |
6ae327f8 AC |
182 | | NoDns |
183 | ||
e0b0abd2 AC |
184 | val dnsKind = fn (EApp ((EApp ((EApp |
185 | ((EVar "useDns", _), sa), _), | |
186 | mstr), _), | |
187 | slaves), _) => | |
188 | (case (soa sa, master mstr, Env.list Env.string slaves) of | |
189 | (SOME sa, SOME mstr, SOME slaves) => | |
190 | SOME (UseDns {soa = sa, | |
191 | master = mstr, | |
192 | slaves = slaves}) | |
193 | | _ => NONE) | |
6ae327f8 AC |
194 | | _ => NONE |
195 | ||
a3698041 AC |
196 | val befores = ref (fn (_ : string) => ()) |
197 | val afters = ref (fn (_ : string) => ()) | |
198 | ||
199 | fun registerBefore f = | |
200 | let | |
201 | val old = !befores | |
202 | in | |
203 | befores := (fn x => (old x; f x)) | |
204 | end | |
205 | ||
206 | fun registerAfter f = | |
207 | let | |
208 | val old = !afters | |
209 | in | |
210 | afters := (fn x => (old x; f x)) | |
211 | end | |
212 | ||
213 | val current = ref "" | |
e0b0abd2 | 214 | val currentPath = ref (fn (_ : string) => "") |
dac62e84 | 215 | |
d612d62c AC |
216 | val scratch = ref "" |
217 | ||
dac62e84 AC |
218 | fun currentDomain () = !current |
219 | ||
e0b0abd2 AC |
220 | fun domainFile {node, name} = ((*print ("Opening " ^ !currentPath node ^ name ^ "\n");*) |
221 | TextIO.openOut (!currentPath node ^ name)) | |
dac62e84 AC |
222 | |
223 | fun getPath domain = | |
224 | let | |
225 | val toks = String.fields (fn ch => ch = #".") domain | |
226 | ||
227 | val elems = foldr (fn (piece, elems) => | |
228 | let | |
229 | val elems = piece :: elems | |
d612d62c | 230 | |
e0b0abd2 AC |
231 | fun doNode node = |
232 | let | |
233 | val path = String.concatWith "/" | |
234 | (Config.resultRoot :: node :: rev elems) | |
235 | val tmpPath = String.concatWith "/" | |
236 | (Config.tmpDir :: node :: rev elems) | |
237 | in | |
238 | (if Posix.FileSys.ST.isDir | |
239 | (Posix.FileSys.stat path) then | |
240 | () | |
241 | else | |
242 | (OS.FileSys.remove path; | |
243 | OS.FileSys.mkDir path)) | |
244 | handle OS.SysErr _ => OS.FileSys.mkDir path; | |
245 | ||
246 | (if Posix.FileSys.ST.isDir | |
247 | (Posix.FileSys.stat tmpPath) then | |
248 | () | |
249 | else | |
250 | (OS.FileSys.remove tmpPath; | |
251 | OS.FileSys.mkDir tmpPath)) | |
252 | handle OS.SysErr _ => OS.FileSys.mkDir tmpPath | |
253 | end | |
254 | in | |
2ed6d0e5 | 255 | app doNode nodes; |
dac62e84 AC |
256 | elems |
257 | end) [] toks | |
258 | in | |
e0b0abd2 | 259 | fn (root, site) => String.concatWith "/" (root :: site :: rev ("" :: elems)) |
d612d62c AC |
260 | end |
261 | ||
262 | datatype file_action' = | |
263 | Add' of {src : string, dst : string} | |
264 | | Delete' of string | |
265 | | Modify' of {src : string, dst : string} | |
266 | ||
e0b0abd2 | 267 | fun findDiffs (site, dom, acts) = |
d612d62c | 268 | let |
e0b0abd2 AC |
269 | val gp = getPath dom |
270 | val realPath = gp (Config.resultRoot, site) | |
271 | val tmpPath = gp (Config.tmpDir, site) | |
272 | ||
273 | (*val _ = print ("getDiffs(" ^ site ^ ", " ^ dom ^ ")... " ^ realPath ^ "; " ^ tmpPath ^ "\n")*) | |
d612d62c AC |
274 | |
275 | val dir = Posix.FileSys.opendir realPath | |
276 | ||
277 | fun loopReal acts = | |
278 | case Posix.FileSys.readdir dir of | |
279 | NONE => (Posix.FileSys.closedir dir; | |
280 | acts) | |
281 | | SOME fname => | |
282 | let | |
283 | val real = OS.Path.joinDirFile {dir = realPath, | |
284 | file = fname} | |
285 | val tmp = OS.Path.joinDirFile {dir = tmpPath, | |
286 | file = fname} | |
287 | in | |
288 | if Posix.FileSys.ST.isDir (Posix.FileSys.stat real) then | |
289 | loopReal acts | |
290 | else if Posix.FileSys.access (tmp, []) then | |
8df2e702 | 291 | if Slave.shell [Config.diff, " ", real, " ", tmp] then |
d612d62c AC |
292 | loopReal acts |
293 | else | |
e0b0abd2 | 294 | loopReal ((site, dom, realPath, Modify' {src = tmp, dst = real}) :: acts) |
d612d62c | 295 | else |
e0b0abd2 | 296 | loopReal ((site, dom, realPath, Delete' real) :: acts) |
d612d62c AC |
297 | end |
298 | ||
e0b0abd2 | 299 | val acts = loopReal acts |
d612d62c | 300 | |
8df2e702 | 301 | val dir = Posix.FileSys.opendir tmpPath |
d612d62c AC |
302 | |
303 | fun loopTmp acts = | |
304 | case Posix.FileSys.readdir dir of | |
305 | NONE => (Posix.FileSys.closedir dir; | |
306 | acts) | |
307 | | SOME fname => | |
308 | let | |
309 | val real = OS.Path.joinDirFile {dir = realPath, | |
310 | file = fname} | |
311 | val tmp = OS.Path.joinDirFile {dir = tmpPath, | |
312 | file = fname} | |
313 | in | |
314 | if Posix.FileSys.ST.isDir (Posix.FileSys.stat tmp) then | |
315 | loopTmp acts | |
316 | else if Posix.FileSys.access (real, []) then | |
317 | loopTmp acts | |
318 | else | |
e0b0abd2 | 319 | loopTmp ((site, dom, realPath, Add' {src = tmp, dst = real}) :: acts) |
d612d62c AC |
320 | end |
321 | ||
322 | val acts = loopTmp acts | |
323 | in | |
324 | acts | |
dac62e84 | 325 | end |
a3698041 | 326 | |
e0b0abd2 AC |
327 | fun findAllDiffs () = |
328 | let | |
329 | val dir = Posix.FileSys.opendir Config.tmpDir | |
330 | val len = length (String.fields (fn ch => ch = #"/") Config.tmpDir) + 1 | |
331 | ||
332 | fun exploreSites diffs = | |
333 | case Posix.FileSys.readdir dir of | |
334 | NONE => diffs | |
335 | | SOME site => | |
336 | let | |
337 | fun explore (dname, diffs) = | |
338 | let | |
339 | val dir = Posix.FileSys.opendir dname | |
340 | ||
341 | fun loop diffs = | |
342 | case Posix.FileSys.readdir dir of | |
343 | NONE => diffs | |
344 | | SOME name => | |
345 | let | |
346 | val fname = OS.Path.joinDirFile {dir = dname, | |
347 | file = name} | |
348 | in | |
349 | loop (if Posix.FileSys.ST.isDir (Posix.FileSys.stat fname) then | |
350 | let | |
351 | val dom = String.fields (fn ch => ch = #"/") fname | |
352 | val dom = List.drop (dom, len) | |
353 | val dom = String.concatWith "." (rev dom) | |
354 | ||
355 | val dname' = OS.Path.joinDirFile {dir = dname, | |
356 | file = name} | |
357 | in | |
358 | explore (dname', | |
359 | findDiffs (site, dom, diffs)) | |
360 | end | |
361 | else | |
362 | diffs) | |
363 | end | |
364 | in | |
365 | loop diffs | |
366 | before Posix.FileSys.closedir dir | |
367 | end | |
368 | in | |
369 | explore (OS.Path.joinDirFile {dir = Config.tmpDir, | |
370 | file = site}, diffs) | |
371 | end | |
372 | in | |
373 | exploreSites [] | |
374 | before Posix.FileSys.closedir dir | |
375 | end | |
376 | ||
377 | val masterNode : string option ref = ref NONE | |
378 | fun dnsMaster () = !masterNode | |
379 | ||
6ae327f8 AC |
380 | val _ = Env.containerV_one "domain" |
381 | ("domain", Env.string) | |
382 | (fn (evs, dom) => | |
383 | let | |
384 | val kind = Env.env dnsKind (evs, "DNS") | |
385 | val ttl = Env.env Env.int (evs, "TTL") | |
386 | ||
e0b0abd2 | 387 | val path = getPath dom |
6ae327f8 AC |
388 | |
389 | val () = (current := dom; | |
e0b0abd2 | 390 | currentPath := (fn site => path (Config.tmpDir, site))) |
6ae327f8 | 391 | |
e0b0abd2 | 392 | fun saveSoa (kind, soa : soa) node = |
6ae327f8 | 393 | let |
e0b0abd2 | 394 | val outf = domainFile {node = node, name = "soa"} |
6ae327f8 AC |
395 | in |
396 | TextIO.output (outf, kind); | |
397 | TextIO.output (outf, "\n"); | |
398 | TextIO.output (outf, Int.toString ttl); | |
399 | TextIO.output (outf, "\n"); | |
400 | TextIO.output (outf, #ns soa); | |
401 | TextIO.output (outf, "\n"); | |
402 | case #serial soa of | |
403 | NONE => () | |
404 | | SOME n => TextIO.output (outf, Int.toString n); | |
405 | TextIO.output (outf, "\n"); | |
406 | TextIO.output (outf, Int.toString (#ref soa)); | |
407 | TextIO.output (outf, "\n"); | |
408 | TextIO.output (outf, Int.toString (#ret soa)); | |
409 | TextIO.output (outf, "\n"); | |
410 | TextIO.output (outf, Int.toString (#exp soa)); | |
411 | TextIO.output (outf, "\n"); | |
412 | TextIO.output (outf, Int.toString (#min soa)); | |
413 | TextIO.output (outf, "\n"); | |
414 | TextIO.closeOut outf | |
415 | end | |
416 | ||
2ed6d0e5 | 417 | fun saveNamed (kind, soa : soa, masterIp) node = |
6ae327f8 | 418 | let |
e0b0abd2 | 419 | val outf = domainFile {node = node, name = "named.conf"} |
6ae327f8 AC |
420 | in |
421 | TextIO.output (outf, "\nzone \""); | |
422 | TextIO.output (outf, dom); | |
423 | TextIO.output (outf, "\" IN {\n\ttype "); | |
424 | TextIO.output (outf, kind); | |
425 | TextIO.output (outf, ";\n\tfile \""); | |
426 | TextIO.output (outf, Config.Bind.zonePath); | |
427 | TextIO.output (outf, "/"); | |
428 | TextIO.output (outf, dom); | |
429 | TextIO.output (outf, ".zone\";\n"); | |
430 | case kind of | |
431 | "master" => TextIO.output (outf, "\tallow-update { none; };\n") | |
2ed6d0e5 AC |
432 | | _ => (TextIO.output (outf, "\tmasters { "); |
433 | TextIO.output (outf, masterIp); | |
434 | TextIO.output (outf, " };\n")); | |
435 | TextIO.output (outf, "};\n"); | |
6ae327f8 AC |
436 | TextIO.closeOut outf |
437 | end | |
6ae327f8 AC |
438 | in |
439 | case kind of | |
e0b0abd2 AC |
440 | NoDns => masterNode := NONE |
441 | | UseDns dns => | |
2ed6d0e5 AC |
442 | let |
443 | val masterIp = | |
444 | case #master dns of | |
445 | InternalMaster node => valOf (SM.find (nodeMap, node)) | |
446 | | ExternalMaster ip => ip | |
447 | in | |
448 | app (saveSoa ("slave", #soa dns)) (#slaves dns); | |
449 | app (saveNamed ("slave", #soa dns, masterIp)) (#slaves dns); | |
450 | case #master dns of | |
451 | InternalMaster node => | |
452 | (masterNode := SOME node; | |
453 | saveSoa ("master", #soa dns) node; | |
454 | saveNamed ("master", #soa dns, masterIp) node) | |
455 | | _ => masterNode := NONE; | |
456 | !befores dom | |
457 | end | |
6ae327f8 | 458 | end, |
e0b0abd2 AC |
459 | fn () => !afters (!current)) |
460 | ||
12adf55a AC |
461 | val () = Env.registerPreTycheck (fn () => (setUser Config.testUser; |
462 | Acl.read Config.aclFile; | |
463 | your_doms := Acl.class {user = getUser (), | |
8a7c40fa AC |
464 | class = "domain"}; |
465 | your_usrs := Acl.class {user = getUser (), | |
466 | class = "user"}; | |
467 | your_grps := Acl.class {user = getUser (), | |
468 | class = "group"}; | |
469 | your_pths := Acl.class {user = getUser (), | |
470 | class = "path"})) | |
12adf55a | 471 | |
e0b0abd2 AC |
472 | val () = Env.registerPre (fn () => (ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""], |
473 | fn cl => "Temp file cleanup failed: " ^ cl)); | |
474 | OS.FileSys.mkDir Config.tmpDir; | |
475 | app (fn node => OS.FileSys.mkDir | |
476 | (OS.Path.joinDirFile {dir = Config.tmpDir, | |
477 | file = node})) | |
2ed6d0e5 | 478 | nodes; |
e0b0abd2 AC |
479 | app (fn node => OS.FileSys.mkDir |
480 | (OS.Path.joinDirFile {dir = Config.resultRoot, | |
481 | file = node}) | |
482 | handle OS.SysErr _ => ()) | |
2ed6d0e5 | 483 | nodes)) |
e0b0abd2 AC |
484 | |
485 | val () = Env.registerPost (fn () => | |
486 | let | |
487 | val diffs = findAllDiffs () | |
6ae327f8 | 488 | |
e0b0abd2 AC |
489 | val diffs = map (fn (site, dom, dir, Add' {src, dst}) => |
490 | (Slave.shellF ([Config.cp, " ", src, " ", dst], | |
491 | fn cl => "Copy failed: " ^ cl); | |
492 | (site, | |
6ae327f8 AC |
493 | {action = Slave.Add, |
494 | domain = dom, | |
495 | dir = dir, | |
e0b0abd2 AC |
496 | file = dst})) |
497 | | (site, dom, dir, Delete' dst) => | |
498 | (OS.FileSys.remove dst | |
499 | handle OS.SysErr _ => | |
500 | ErrorMsg.error NONE ("Delete failed for " ^ dst); | |
501 | (site, | |
6ae327f8 AC |
502 | {action = Slave.Delete, |
503 | domain = dom, | |
504 | dir = dir, | |
e0b0abd2 AC |
505 | file = dst})) |
506 | | (site, dom, dir, Modify' {src, dst}) => | |
507 | (Slave.shellF ([Config.cp, " ", src, " ", dst], | |
508 | fn cl => "Copy failed: " ^ cl); | |
509 | (site, | |
6ae327f8 AC |
510 | {action = Slave.Modify, |
511 | domain = dom, | |
512 | dir = dir, | |
e0b0abd2 AC |
513 | file = dst}))) diffs |
514 | in | |
515 | if !ErrorMsg.anyErrors then | |
516 | () | |
517 | else | |
12adf55a | 518 | Slave.handleChanges (map #2 diffs)(*; |
e0b0abd2 | 519 | ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""], |
12adf55a | 520 | fn cl => "Temp file cleanup failed: " ^ cl))*) |
e0b0abd2 | 521 | end) |
6ae327f8 AC |
522 | |
523 | ||
a3698041 AC |
524 | |
525 | end |