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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 | |
27 | (fn n => n >= 1024) | |
28 | ||
29 | val _ = Env.type_one "rewrite_arg" | |
30 | Env.string | |
31 | (CharVector.all Char.isAlphaNum) | |
32 | ||
8a7c40fa AC |
33 | val dl = ErrorMsg.dummyLoc |
34 | ||
35 | val _ = Main.registerDefault ("WebNodes", | |
36 | (TList (TBase "node", dl), dl), | |
37 | (fn () => (EList (map (fn s => (EString s, dl)) Config.Apache.webNodes), dl))) | |
38 | ||
39 | val _ = Main.registerDefault ("SSL", | |
40 | (TBase "bool", dl), | |
41 | (fn () => (EVar "false", dl))) | |
42 | ||
43 | val _ = Main.registerDefault ("User", | |
44 | (TBase "your_user", dl), | |
45 | (fn () => (EString (Domain.getUser ()), dl))) | |
46 | ||
47 | val _ = Main.registerDefault ("Group", | |
48 | (TBase "your_group", dl), | |
49 | (fn () => (EString (Domain.getUser ()), dl))) | |
50 | ||
51 | val _ = Main.registerDefault ("DocumentRoot", | |
52 | (TBase "your_path", dl), | |
53 | (fn () => (EString ("/home/" ^ Domain.getUser () ^ "/public_html"), dl))) | |
54 | ||
55 | val _ = Main.registerDefault ("ServerAdmin", | |
56 | (TBase "email", dl), | |
57 | (fn () => (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl))) | |
58 | ||
f8dfbbcc AC |
59 | |
60 | val redirect_code = fn (EVar "temp", _) => SOME "temp" | |
61 | | (EVar "permanent", _) => SOME "permanent" | |
62 | | (EVar "seeother", _) => SOME "seeother" | |
63 | | (EVar "redir300", _) => SOME "300" | |
64 | | (EVar "redir301", _) => SOME "301" | |
65 | | (EVar "redir302", _) => SOME "302" | |
66 | | (EVar "redir303", _) => SOME "303" | |
67 | | (EVar "redir304", _) => SOME "304" | |
68 | | (EVar "redir305", _) => SOME "305" | |
69 | | (EVar "redir307", _) => SOME "307" | |
70 | | _ => NONE | |
71 | ||
72 | val flag = fn (EVar "redirect", _) => SOME "R" | |
73 | | (EVar "forbidden", _) => SOME "F" | |
74 | | (EVar "gone", _) => SOME "G" | |
75 | | (EVar "last", _) => SOME "L" | |
76 | | (EVar "chain", _) => SOME "C" | |
77 | | (EVar "nosubreq", _) => SOME "NS" | |
78 | | (EVar "nocase", _) => SOME "NC" | |
79 | | (EVar "qsappend", _) => SOME "QSA" | |
80 | | (EVar "noescape", _) => SOME "NE" | |
81 | | (EVar "passthrough", _) => SOME "PT" | |
82 | | (EApp ((EVar "mimeType", _), e), _) => | |
83 | Option.map (fn s => "T=" ^ s) (Env.string e) | |
84 | | (EApp ((EVar "redirectWith", _), e), _) => | |
85 | Option.map (fn s => "R=" ^ s) (redirect_code e) | |
86 | | (EApp ((EVar "skip", _), e), _) => | |
87 | Option.map (fn n => "S=" ^ Int.toString n) (Env.int e) | |
88 | | (EApp ((EApp ((EVar "env", _), e1), _), e2), _) => | |
89 | (case Env.string e1 of | |
90 | NONE => NONE | |
91 | | SOME s1 => Option.map (fn s2 => "E=" ^ s1 ^ ":" ^ s2) | |
92 | (Env.string e2)) | |
93 | ||
94 | | _ => NONE | |
95 | ||
96 | ||
8a7c40fa AC |
97 | val vhostsChanged = ref false |
98 | ||
99 | val () = Slave.registerPreHandler | |
100 | (fn () => vhostsChanged := false) | |
101 | ||
102 | val () = Slave.registerFileHandler (fn fs => | |
103 | let | |
104 | val spl = OS.Path.splitDirFile (#file fs) | |
105 | in | |
106 | if String.isSuffix ".vhost" (#file spl) | |
107 | orelse String.isSuffix ".vhost_ssl" (#file spl) then | |
108 | (vhostsChanged := true; | |
109 | case #action fs of | |
110 | Slave.Delete => | |
111 | ignore (OS.Process.system (Config.rm | |
112 | ^ " -rf " | |
113 | ^ Config.Apache.confDir | |
114 | ^ "/" | |
115 | ^ #file spl)) | |
116 | | _ => | |
117 | ignore (OS.Process.system (Config.cp | |
118 | ^ " " | |
119 | ^ #file fs | |
120 | ^ " " | |
121 | ^ Config.Apache.confDir | |
122 | ^ "/" | |
123 | ^ #file spl))) | |
124 | else | |
125 | () | |
126 | end) | |
127 | ||
128 | val () = Slave.registerPostHandler | |
129 | (fn () => | |
130 | (if !vhostsChanged then | |
131 | Slave.shellF ([Config.Apache.reload], | |
132 | fn cl => "Error reloading Apache with " ^ cl) | |
133 | else | |
134 | ())) | |
135 | ||
136 | val vhostFiles : TextIO.outstream list ref = ref [] | |
137 | fun write s = app (fn file => TextIO.output (file, s)) (!vhostFiles) | |
138 | ||
f8dfbbcc AC |
139 | val rewriteEnabled = ref false |
140 | ||
8a7c40fa AC |
141 | val () = Env.containerV_one "vhost" |
142 | ("host", Env.string) | |
143 | (fn (env, host) => | |
144 | let | |
145 | val nodes = Env.env (Env.list Env.string) (env, "WebNodes") | |
146 | ||
147 | val ssl = Env.env Env.bool (env, "SSL") | |
148 | val user = Env.env Env.string (env, "User") | |
149 | val group = Env.env Env.string (env, "Group") | |
150 | val docroot = Env.env Env.string (env, "DocumentRoot") | |
151 | val sadmin = Env.env Env.string (env, "ServerAdmin") | |
152 | ||
153 | val fullHost = host ^ "." ^ Domain.currentDomain () | |
154 | val confFile = fullHost ^ (if ssl then ".vhost_ssl" else ".vhost") | |
155 | in | |
f8dfbbcc | 156 | rewriteEnabled := false; |
8a7c40fa AC |
157 | vhostFiles := map (fn node => |
158 | let | |
159 | val file = Domain.domainFile {node = node, | |
160 | name = confFile} | |
161 | in | |
162 | TextIO.output (file, "<VirtualHost "); | |
163 | TextIO.output (file, Domain.nodeIp node); | |
164 | TextIO.output (file, ":"); | |
165 | TextIO.output (file, if ssl then | |
166 | "443" | |
167 | else | |
168 | "80"); | |
169 | TextIO.output (file, ">\n"); | |
170 | file | |
171 | end) | |
172 | nodes; | |
173 | write "\tSuexecUserGroup "; | |
174 | write user; | |
175 | write " "; | |
176 | write group; | |
177 | write "\n\tDocumentRoot "; | |
178 | write docroot; | |
179 | write "\n\tServerAdmin "; | |
180 | write sadmin; | |
181 | write "\n" | |
182 | end, | |
183 | fn () => (write "</VirtualHost>\n"; | |
184 | app TextIO.closeOut (!vhostFiles))) | |
185 | ||
f8dfbbcc AC |
186 | fun checkRewrite () = |
187 | if !rewriteEnabled then | |
188 | () | |
189 | else | |
190 | (write "\tRewriteEngine on\n"; | |
191 | rewriteEnabled := true) | |
192 | ||
193 | val () = Env.action_three "localProxyRewrite" | |
194 | ("from", Env.string, "to", Env.string, "port", Env.int) | |
195 | (fn (from, to, port) => | |
196 | (checkRewrite (); | |
197 | write "\tRewriteRule\t"; | |
198 | write from; | |
199 | write "\thttp://localhost:"; | |
200 | write (Int.toString port); | |
201 | write "/"; | |
202 | write to; | |
203 | write " [P]\n")) | |
204 | ||
205 | val () = Env.action_three "localProxyPass" | |
206 | ("from", Env.string, "to", Env.string, "port", Env.int) | |
207 | (fn (from, to, port) => | |
208 | let | |
209 | val to = | |
210 | case to of | |
211 | "" => "/" | |
212 | | _ => if String.sub (to, 0) = #"/" then | |
213 | to | |
214 | else | |
215 | "/" ^ to | |
216 | in | |
217 | write "\tProxyPass\t"; | |
218 | write from; | |
219 | write "\thttp://localhost:"; | |
220 | write (Int.toString port); | |
221 | write to; | |
222 | write "\n" | |
223 | end) | |
224 | ||
225 | val () = Env.action_three "localProxyPassReverse" | |
226 | ("from", Env.string, "to", Env.string, "port", Env.int) | |
227 | (fn (from, to, port) => | |
228 | let | |
229 | val to = | |
230 | case to of | |
231 | "" => "/" | |
232 | | _ => if String.sub (to, 0) = #"/" then | |
233 | to | |
234 | else | |
235 | "/" ^ to | |
236 | in | |
237 | write "\tProxyPassReverse\t"; | |
238 | write from; | |
239 | write "\thttp://localhost:"; | |
240 | write (Int.toString port); | |
241 | write to; | |
242 | write "\n" | |
243 | end) | |
244 | ||
245 | val () = Env.action_three "rewriteRule" | |
246 | ("from", Env.string, "to", Env.string, "flags", Env.list flag) | |
247 | (fn (from, to, flags) => | |
248 | (checkRewrite (); | |
249 | write "\tRewriteRule\t"; | |
250 | write from; | |
251 | write "\t"; | |
252 | write to; | |
253 | case flags of | |
254 | [] => () | |
255 | | flag::rest => (write " ["; | |
256 | write flag; | |
257 | app (fn flag => (write ","; | |
258 | write flag)) rest; | |
259 | write "]"); | |
260 | write "\n")) | |
261 | ||
8a7c40fa | 262 | end |