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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 | |
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25 | val _ = Env.type_one "proxy_port" |
26 | Env.int |
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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) |
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45 | |
46 | val _ = Env.type_one "rewrite_arg" |
47 | Env.string |
48 | (CharVector.all Char.isAlphaNum) |
49 | |
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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 | |
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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 | |
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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 | |
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125 | val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC" |
126 | | (EVar "ornext", _) => SOME "OR" |
127 | | _ => NONE |
128 | |
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129 | |
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130 | val vhostsChanged = ref false |
131 | |
132 | val () = Slave.registerPreHandler |
133 | (fn () => vhostsChanged := false) |
134 | |
135 | val () = Slave.registerFileHandler (fn fs => |
136 | let |
137 | val spl = OS.Path.splitDirFile (#file fs) |
138 | in |
139 | if String.isSuffix ".vhost" (#file spl) |
140 | orelse String.isSuffix ".vhost_ssl" (#file spl) then |
141 | (vhostsChanged := true; |
142 | case #action fs of |
143 | Slave.Delete => |
144 | ignore (OS.Process.system (Config.rm |
145 | ^ " -rf " |
146 | ^ Config.Apache.confDir |
147 | ^ "/" |
148 | ^ #file spl)) |
149 | | _ => |
150 | ignore (OS.Process.system (Config.cp |
151 | ^ " " |
152 | ^ #file fs |
153 | ^ " " |
154 | ^ Config.Apache.confDir |
155 | ^ "/" |
156 | ^ #file spl))) |
157 | else |
158 | () |
159 | end) |
160 | |
161 | val () = Slave.registerPostHandler |
162 | (fn () => |
163 | (if !vhostsChanged then |
164 | Slave.shellF ([Config.Apache.reload], |
165 | fn cl => "Error reloading Apache with " ^ cl) |
166 | else |
167 | ())) |
168 | |
169 | val vhostFiles : TextIO.outstream list ref = ref [] |
170 | fun write s = app (fn file => TextIO.output (file, s)) (!vhostFiles) |
171 | |
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172 | val rewriteEnabled = ref false |
173 | |
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174 | val () = Env.containerV_one "vhost" |
175 | ("host", Env.string) |
176 | (fn (env, host) => |
177 | let |
178 | val nodes = Env.env (Env.list Env.string) (env, "WebNodes") |
179 | |
180 | val ssl = Env.env Env.bool (env, "SSL") |
181 | val user = Env.env Env.string (env, "User") |
182 | val group = Env.env Env.string (env, "Group") |
183 | val docroot = Env.env Env.string (env, "DocumentRoot") |
184 | val sadmin = Env.env Env.string (env, "ServerAdmin") |
185 | |
186 | val fullHost = host ^ "." ^ Domain.currentDomain () |
187 | val confFile = fullHost ^ (if ssl then ".vhost_ssl" else ".vhost") |
188 | in |
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189 | rewriteEnabled := false; |
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190 | vhostFiles := map (fn node => |
191 | let |
192 | val file = Domain.domainFile {node = node, |
193 | name = confFile} |
194 | in |
195 | TextIO.output (file, "<VirtualHost "); |
196 | TextIO.output (file, Domain.nodeIp node); |
197 | TextIO.output (file, ":"); |
198 | TextIO.output (file, if ssl then |
199 | "443" |
200 | else |
201 | "80"); |
202 | TextIO.output (file, ">\n"); |
203 | file |
204 | end) |
205 | nodes; |
206 | write "\tSuexecUserGroup "; |
207 | write user; |
208 | write " "; |
209 | write group; |
210 | write "\n\tDocumentRoot "; |
211 | write docroot; |
212 | write "\n\tServerAdmin "; |
213 | write sadmin; |
214 | write "\n" |
215 | end, |
216 | fn () => (write "</VirtualHost>\n"; |
217 | app TextIO.closeOut (!vhostFiles))) |
218 | |
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219 | val () = Env.container_one "location" |
220 | ("prefix", Env.string) |
221 | (fn prefix => |
222 | (write "\t<Location "; |
223 | write prefix; |
224 | write ">\n"), |
225 | fn () => write "\t</Location>\n") |
226 | |
227 | val () = Env.container_one "directory" |
228 | ("directory", Env.string) |
229 | (fn directory => |
230 | (write "\t<Directory "; |
231 | write directory; |
232 | write ">\n"), |
233 | fn () => write "\t</Directory>\n") |
234 | |
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235 | fun checkRewrite () = |
236 | if !rewriteEnabled then |
237 | () |
238 | else |
239 | (write "\tRewriteEngine on\n"; |
240 | rewriteEnabled := true) |
241 | |
242 | val () = Env.action_three "localProxyRewrite" |
243 | ("from", Env.string, "to", Env.string, "port", Env.int) |
244 | (fn (from, to, port) => |
245 | (checkRewrite (); |
246 | write "\tRewriteRule\t"; |
247 | write from; |
248 | write "\thttp://localhost:"; |
249 | write (Int.toString port); |
250 | write "/"; |
251 | write to; |
252 | write " [P]\n")) |
253 | |
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254 | val () = Env.action_two "proxyPass" |
255 | ("from", Env.string, "to", Env.string) |
256 | (fn (from, to) => |
257 | (write "\tProxyPass\t"; |
258 | write from; |
259 | write "\t"; |
260 | write to; |
261 | write "\n")) |
262 | |
263 | val () = Env.action_two "proxyPassReverse" |
264 | ("from", Env.string, "to", Env.string) |
265 | (fn (from, to) => |
266 | (write "\tProxyPassReverse\t"; |
267 | write from; |
268 | write "\t"; |
269 | write to; |
270 | write "\n")) |
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271 | |
272 | val () = Env.action_three "rewriteRule" |
273 | ("from", Env.string, "to", Env.string, "flags", Env.list flag) |
274 | (fn (from, to, flags) => |
275 | (checkRewrite (); |
276 | write "\tRewriteRule\t"; |
277 | write from; |
278 | write "\t"; |
279 | write to; |
280 | case flags of |
281 | [] => () |
282 | | flag::rest => (write " ["; |
283 | write flag; |
284 | app (fn flag => (write ","; |
285 | write flag)) rest; |
286 | write "]"); |
287 | write "\n")) |
288 | |
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289 | val () = Env.action_three "rewriteCond" |
290 | ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag) |
291 | (fn (from, to, flags) => |
292 | (checkRewrite (); |
293 | write "\tRewriteCond\t"; |
294 | write from; |
295 | write "\t"; |
296 | write to; |
297 | case flags of |
298 | [] => () |
299 | | flag::rest => (write " ["; |
300 | write flag; |
301 | app (fn flag => (write ","; |
302 | write flag)) rest; |
303 | write "]"); |
304 | write "\n")) |
305 | |
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306 | end |