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8a7c40fa 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 | (* Apache HTTPD handling *) | |
20 | ||
21 | structure Apache :> APACHE = struct | |
22 | ||
23 | open Ast | |
24 | ||
f8dfbbcc AC |
25 | val _ = Env.type_one "proxy_port" |
26 | Env.int | |
e95a129e AC |
27 | (fn n => n > 1024) |
28 | ||
29 | val _ = Env.type_one "proxy_target" | |
30 | Env.string | |
31 | (fn s => | |
32 | let | |
33 | fun default () = List.exists (fn s' => s = s') Config.Apache.proxyTargets | |
34 | in | |
35 | case String.fields (fn ch => ch = #":") s of | |
36 | ["http", "//localhost", rest] => | |
37 | (case String.fields (fn ch => ch = #"/") rest of | |
38 | port :: _ => | |
39 | (case Int.fromString port of | |
40 | NONE => default () | |
41 | | SOME n => n > 1024 orelse default ()) | |
42 | | _ => default ()) | |
43 | | _ => default () | |
44 | end) | |
f8dfbbcc AC |
45 | |
46 | val _ = Env.type_one "rewrite_arg" | |
47 | Env.string | |
48 | (CharVector.all Char.isAlphaNum) | |
49 | ||
2882ee37 AC |
50 | fun validLocation s = |
51 | size s > 0 andalso size s < 1000 andalso CharVector.all | |
52 | (fn ch => Char.isAlphaNum ch | |
53 | orelse ch = #"-" | |
54 | orelse ch = #"_" | |
55 | orelse ch = #"." | |
56 | orelse ch = #"/") s | |
57 | ||
58 | val _ = Env.type_one "location" | |
59 | Env.string | |
60 | validLocation | |
61 | ||
8a7c40fa AC |
62 | val dl = ErrorMsg.dummyLoc |
63 | ||
64 | val _ = Main.registerDefault ("WebNodes", | |
65 | (TList (TBase "node", dl), dl), | |
66 | (fn () => (EList (map (fn s => (EString s, dl)) Config.Apache.webNodes), dl))) | |
67 | ||
68 | val _ = Main.registerDefault ("SSL", | |
69 | (TBase "bool", dl), | |
70 | (fn () => (EVar "false", dl))) | |
71 | ||
72 | val _ = Main.registerDefault ("User", | |
73 | (TBase "your_user", dl), | |
74 | (fn () => (EString (Domain.getUser ()), dl))) | |
75 | ||
76 | val _ = Main.registerDefault ("Group", | |
77 | (TBase "your_group", dl), | |
78 | (fn () => (EString (Domain.getUser ()), dl))) | |
79 | ||
80 | val _ = Main.registerDefault ("DocumentRoot", | |
81 | (TBase "your_path", dl), | |
82 | (fn () => (EString ("/home/" ^ Domain.getUser () ^ "/public_html"), dl))) | |
83 | ||
84 | val _ = Main.registerDefault ("ServerAdmin", | |
85 | (TBase "email", dl), | |
86 | (fn () => (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl))) | |
87 | ||
f8dfbbcc AC |
88 | |
89 | val redirect_code = fn (EVar "temp", _) => SOME "temp" | |
90 | | (EVar "permanent", _) => SOME "permanent" | |
91 | | (EVar "seeother", _) => SOME "seeother" | |
92 | | (EVar "redir300", _) => SOME "300" | |
93 | | (EVar "redir301", _) => SOME "301" | |
94 | | (EVar "redir302", _) => SOME "302" | |
95 | | (EVar "redir303", _) => SOME "303" | |
96 | | (EVar "redir304", _) => SOME "304" | |
97 | | (EVar "redir305", _) => SOME "305" | |
98 | | (EVar "redir307", _) => SOME "307" | |
99 | | _ => NONE | |
100 | ||
101 | val flag = fn (EVar "redirect", _) => SOME "R" | |
102 | | (EVar "forbidden", _) => SOME "F" | |
103 | | (EVar "gone", _) => SOME "G" | |
104 | | (EVar "last", _) => SOME "L" | |
105 | | (EVar "chain", _) => SOME "C" | |
106 | | (EVar "nosubreq", _) => SOME "NS" | |
107 | | (EVar "nocase", _) => SOME "NC" | |
108 | | (EVar "qsappend", _) => SOME "QSA" | |
109 | | (EVar "noescape", _) => SOME "NE" | |
110 | | (EVar "passthrough", _) => SOME "PT" | |
111 | | (EApp ((EVar "mimeType", _), e), _) => | |
112 | Option.map (fn s => "T=" ^ s) (Env.string e) | |
113 | | (EApp ((EVar "redirectWith", _), e), _) => | |
114 | Option.map (fn s => "R=" ^ s) (redirect_code e) | |
115 | | (EApp ((EVar "skip", _), e), _) => | |
116 | Option.map (fn n => "S=" ^ Int.toString n) (Env.int e) | |
117 | | (EApp ((EApp ((EVar "env", _), e1), _), e2), _) => | |
118 | (case Env.string e1 of | |
119 | NONE => NONE | |
120 | | SOME s1 => Option.map (fn s2 => "E=" ^ s1 ^ ":" ^ s2) | |
121 | (Env.string e2)) | |
122 | ||
123 | | _ => NONE | |
124 | ||
e95a129e AC |
125 | val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC" |
126 | | (EVar "ornext", _) => SOME "OR" | |
127 | | _ => NONE | |
128 | ||
d441e69f AC |
129 | val apache_option = fn (EVar "execCGI", _) => SOME "ExecCGI" |
130 | | (EVar "includesNOEXEC", _) => SOME "IncludesNOEXEC" | |
131 | | (EVar "indexes", _) => SOME "Indexes" | |
132 | | _ => NONE | |
133 | ||
f8dfbbcc | 134 | |
8a7c40fa AC |
135 | val vhostsChanged = ref false |
136 | ||
137 | val () = Slave.registerPreHandler | |
138 | (fn () => vhostsChanged := false) | |
139 | ||
140 | val () = Slave.registerFileHandler (fn fs => | |
141 | let | |
142 | val spl = OS.Path.splitDirFile (#file fs) | |
143 | in | |
144 | if String.isSuffix ".vhost" (#file spl) | |
145 | orelse String.isSuffix ".vhost_ssl" (#file spl) then | |
146 | (vhostsChanged := true; | |
147 | case #action fs of | |
148 | Slave.Delete => | |
149 | ignore (OS.Process.system (Config.rm | |
150 | ^ " -rf " | |
151 | ^ Config.Apache.confDir | |
152 | ^ "/" | |
153 | ^ #file spl)) | |
154 | | _ => | |
155 | ignore (OS.Process.system (Config.cp | |
156 | ^ " " | |
157 | ^ #file fs | |
158 | ^ " " | |
159 | ^ Config.Apache.confDir | |
160 | ^ "/" | |
161 | ^ #file spl))) | |
162 | else | |
163 | () | |
164 | end) | |
165 | ||
166 | val () = Slave.registerPostHandler | |
167 | (fn () => | |
168 | (if !vhostsChanged then | |
169 | Slave.shellF ([Config.Apache.reload], | |
170 | fn cl => "Error reloading Apache with " ^ cl) | |
171 | else | |
172 | ())) | |
173 | ||
174 | val vhostFiles : TextIO.outstream list ref = ref [] | |
175 | fun write s = app (fn file => TextIO.output (file, s)) (!vhostFiles) | |
176 | ||
f8dfbbcc AC |
177 | val rewriteEnabled = ref false |
178 | ||
8a7c40fa AC |
179 | val () = Env.containerV_one "vhost" |
180 | ("host", Env.string) | |
181 | (fn (env, host) => | |
182 | let | |
183 | val nodes = Env.env (Env.list Env.string) (env, "WebNodes") | |
184 | ||
185 | val ssl = Env.env Env.bool (env, "SSL") | |
186 | val user = Env.env Env.string (env, "User") | |
187 | val group = Env.env Env.string (env, "Group") | |
188 | val docroot = Env.env Env.string (env, "DocumentRoot") | |
189 | val sadmin = Env.env Env.string (env, "ServerAdmin") | |
190 | ||
191 | val fullHost = host ^ "." ^ Domain.currentDomain () | |
192 | val confFile = fullHost ^ (if ssl then ".vhost_ssl" else ".vhost") | |
193 | in | |
f8dfbbcc | 194 | rewriteEnabled := false; |
8a7c40fa AC |
195 | vhostFiles := map (fn node => |
196 | let | |
197 | val file = Domain.domainFile {node = node, | |
198 | name = confFile} | |
199 | in | |
200 | TextIO.output (file, "<VirtualHost "); | |
201 | TextIO.output (file, Domain.nodeIp node); | |
202 | TextIO.output (file, ":"); | |
203 | TextIO.output (file, if ssl then | |
204 | "443" | |
205 | else | |
206 | "80"); | |
207 | TextIO.output (file, ">\n"); | |
208 | file | |
209 | end) | |
210 | nodes; | |
211 | write "\tSuexecUserGroup "; | |
212 | write user; | |
213 | write " "; | |
214 | write group; | |
215 | write "\n\tDocumentRoot "; | |
216 | write docroot; | |
217 | write "\n\tServerAdmin "; | |
218 | write sadmin; | |
219 | write "\n" | |
220 | end, | |
221 | fn () => (write "</VirtualHost>\n"; | |
222 | app TextIO.closeOut (!vhostFiles))) | |
223 | ||
2882ee37 AC |
224 | val () = Env.container_one "location" |
225 | ("prefix", Env.string) | |
226 | (fn prefix => | |
227 | (write "\t<Location "; | |
228 | write prefix; | |
229 | write ">\n"), | |
230 | fn () => write "\t</Location>\n") | |
231 | ||
232 | val () = Env.container_one "directory" | |
233 | ("directory", Env.string) | |
234 | (fn directory => | |
235 | (write "\t<Directory "; | |
236 | write directory; | |
237 | write ">\n"), | |
238 | fn () => write "\t</Directory>\n") | |
239 | ||
f8dfbbcc AC |
240 | fun checkRewrite () = |
241 | if !rewriteEnabled then | |
242 | () | |
243 | else | |
244 | (write "\tRewriteEngine on\n"; | |
245 | rewriteEnabled := true) | |
246 | ||
247 | val () = Env.action_three "localProxyRewrite" | |
248 | ("from", Env.string, "to", Env.string, "port", Env.int) | |
249 | (fn (from, to, port) => | |
250 | (checkRewrite (); | |
251 | write "\tRewriteRule\t"; | |
252 | write from; | |
253 | write "\thttp://localhost:"; | |
254 | write (Int.toString port); | |
255 | write "/"; | |
256 | write to; | |
257 | write " [P]\n")) | |
258 | ||
e95a129e AC |
259 | val () = Env.action_two "proxyPass" |
260 | ("from", Env.string, "to", Env.string) | |
261 | (fn (from, to) => | |
262 | (write "\tProxyPass\t"; | |
263 | write from; | |
264 | write "\t"; | |
265 | write to; | |
266 | write "\n")) | |
267 | ||
268 | val () = Env.action_two "proxyPassReverse" | |
269 | ("from", Env.string, "to", Env.string) | |
270 | (fn (from, to) => | |
271 | (write "\tProxyPassReverse\t"; | |
272 | write from; | |
273 | write "\t"; | |
274 | write to; | |
275 | write "\n")) | |
f8dfbbcc AC |
276 | |
277 | val () = Env.action_three "rewriteRule" | |
278 | ("from", Env.string, "to", Env.string, "flags", Env.list flag) | |
279 | (fn (from, to, flags) => | |
280 | (checkRewrite (); | |
281 | write "\tRewriteRule\t"; | |
282 | write from; | |
283 | write "\t"; | |
284 | write to; | |
285 | case flags of | |
286 | [] => () | |
287 | | flag::rest => (write " ["; | |
288 | write flag; | |
289 | app (fn flag => (write ","; | |
290 | write flag)) rest; | |
291 | write "]"); | |
292 | write "\n")) | |
293 | ||
e95a129e AC |
294 | val () = Env.action_three "rewriteCond" |
295 | ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag) | |
296 | (fn (from, to, flags) => | |
297 | (checkRewrite (); | |
298 | write "\tRewriteCond\t"; | |
299 | write from; | |
300 | write "\t"; | |
301 | write to; | |
302 | case flags of | |
303 | [] => () | |
304 | | flag::rest => (write " ["; | |
305 | write flag; | |
306 | app (fn flag => (write ","; | |
307 | write flag)) rest; | |
308 | write "]"); | |
309 | write "\n")) | |
310 | ||
d5754b53 AC |
311 | val () = Env.action_two "alias" |
312 | ("from", Env.string, "to", Env.string) | |
313 | (fn (from, to) => | |
314 | (write "\tAlias\t"; | |
315 | write from; | |
316 | write " "; | |
317 | write to; | |
318 | write "\n")) | |
319 | ||
320 | val () = Env.action_two "scriptAlias" | |
321 | ("from", Env.string, "to", Env.string) | |
322 | (fn (from, to) => | |
323 | (write "\tScriptAlias\t"; | |
324 | write from; | |
325 | write " "; | |
326 | write to; | |
327 | write "\n")) | |
328 | ||
329 | val () = Env.action_two "errorDocument" | |
330 | ("code", Env.string, "handler", Env.string) | |
331 | (fn (code, handler) => | |
332 | (write "\tErrorDocument\t"; | |
333 | write code; | |
334 | write " "; | |
335 | write handler; | |
336 | write "\n")) | |
337 | ||
d441e69f AC |
338 | val () = Env.action_one "options" |
339 | ("options", Env.list apache_option) | |
340 | (fn opts => | |
341 | case opts of | |
342 | [] => () | |
343 | | _ => (write "\tOptions"; | |
344 | app (fn opt => (write " "; write opt)) opts; | |
345 | write "\n")) | |
346 | ||
347 | val () = Env.action_one "set_options" | |
348 | ("options", Env.list apache_option) | |
349 | (fn opts => | |
350 | case opts of | |
351 | [] => () | |
352 | | _ => (write "\tOptions"; | |
353 | app (fn opt => (write " +"; write opt)) opts; | |
354 | write "\n")) | |
355 | ||
356 | val () = Env.action_one "unset_options" | |
357 | ("options", Env.list apache_option) | |
358 | (fn opts => | |
359 | case opts of | |
360 | [] => () | |
361 | | _ => (write "\tOptions"; | |
362 | app (fn opt => (write " -"; write opt)) opts; | |
363 | write "\n")) | |
d5754b53 | 364 | |
8a7c40fa | 365 | end |