[hcoop/zz_old/domtool.git] / src / apache / apache.sml

(*
Domtool (http://hcoop.sf.net/)
Copyright (C) 2004  Adam Chlipala

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*)

(* Apache vhost management module, with Webalizer support *)

structure Apache :> APACHE =
struct
    open Config ApacheConfig Util

    val vhosts = ref (NONE : TextIO.outstream option)
    val loggroups = ref (NONE : TextIO.outstream option)

    fun init () = (vhosts := SOME (TextIO.openOut (scratchDir ^ "/vhosts.conf"));
		   loggroups := SOME (TextIO.openOut (scratchDir ^ "/loggroups")))
    fun finish () = (TextIO.closeOut (valOf (!vhosts));
		     vhosts := NONE;
		     TextIO.closeOut (valOf (!loggroups));
		     loggroups := NONE)

    val noargs = ["redirect", "R", "forbidden", "F", "gone", "G", "last", "L", "chain", "C", "nosubeq", "NS", "nocase", "NC", "qsappend", "QSA", "noescape", "NE", "passthrough", "PT"]
		 
    fun checkRewriteArgs (path, args) =
	if size args < 2 orelse String.sub (args, 0) <> #"[" orelse String.sub (args, size args - 1) <> #"]" then
	    (Domtool.error (path, "Not in brackets: " ^ args);
	     false)
	else let
	    val args = String.substring (args, 1, size args - 2)
	    val fields = String.fields (fn ch => ch = #",") args
			 
	    fun checkField f =
		case String.fields (fn ch => ch = #"=") f of
		    [flag] => List.exists (fn x => x = flag) noargs orelse (Domtool.error (path, "Unknown argument-free flag " ^ flag);
									    false)
		  | ["type", _] => true
		  | ["T", _] => true
		  | ["skip", num] => isNat num orelse (Domtool.error (path, "Bad skip number " ^ num); false)
		  | ["S", num] => isNat num orelse (Domtool.error (path, "Bad skip number " ^ num); false)
		  | ["env", varval] =>
		    (case String.fields (fn ch => ch = #":") varval of
			 [_, _] => true
		       | _ => (Domtool.error (path, "Bad env setting " ^ varval);
			       false))
		  | ["E", varval] =>
		    (case String.fields (fn ch => ch = #":") varval of
			 [_, _] => true
		       | _ => (Domtool.error (path, "Bad env setting " ^ varval);
			       false))
		  | _ => (Domtool.error (path, "Unknown or disallowed mod_rewrite flag " ^ f);
			  false)
	in
	    List.all checkField fields
	end

    fun handler {path, domain, parent, vars, paths, users, groups} =
	let
	    val _ = Domtool.dprint ("Reading host " ^ path ^ " for " ^ domain ^ "....")

	    val vhosts = valOf (!vhosts)
	    val loggroups = valOf (!loggroups)

	    val hf = TextIO.openIn path
	    val rewrite = ref false

	    val conf = TextIO.openOut (wblConfDir ^ "/" ^ domain ^ ".conf")
	    val _ = TextIO.output (conf, "LogFile\t" ^ logDir ^ domain ^ "-access.log\n" ^
					 "OutputDir\t" ^ wblDocDir ^ "/" ^ domain ^ "\n" ^
					 "HostName\t" ^ domain ^ "\n" ^
					 "HideSite\t" ^ domain ^ "\n" ^
					 "HideReferrer\t" ^ domain ^ "\n")

	    val dir = wblDocDir ^ "/" ^ domain
	    val _ =
		if Posix.FileSys.access (dir, []) then
		    ()
		else
		    Posix.FileSys.mkdir (dir, Posix.FileSys.S.flags [Posix.FileSys.S.ixoth, Posix.FileSys.S.irwxu,
								     Posix.FileSys.S.irgrp, Posix.FileSys.S.iwgrp])

	    val htac = TextIO.openOut (dir ^ "/.htaccess")
	    val user = ref defaultUser
	    val group = ref defaultGroup

	    fun loop (line, ()) =
		(case String.tokens Char.isSpace line of
		     [] => ()
		   | ["User", user'] =>
		     if StringSet.member (users, user') then
			 user := user'
		     else
			 Domtool.error (path, "not authorized to run as " ^ user')
		   | ["Group", group'] =>
		     if StringSet.member (groups, group') then
			 (group := group';
			  TextIO.output (loggroups, domain ^ "\t" ^ group' ^ "\n"))
		     else
			  Domtool.error (path, "not authorized to run as group " ^ group')
		   | ["ServerAdmin", email] => TextIO.output (vhosts, "\tServerAdmin " ^ email ^ "\n")
		   | ["UserDir"] => TextIO.output (vhosts, "\tUserDir public_html\n\t<Directory /home/*/public_html/cgi-bin>\n\t\tAllowOverride None\n\t\tOptions ExecCGI\n\t\tAllow from all\n\t\tSetHandler cgi-script\n\t</Directory>\n\tScriptAliasMatch ^/~(.*)/cgi-bin/(.*) /home/$1/public_html/cgi-bin/$2\n")
		   | ["DocumentRoot", p] =>
		     if checkPath (paths, p) then
			 TextIO.output (vhosts, "\tDocumentRoot " ^ p ^ "\n")
		     else
			 print (path ^ ": not authorized to use " ^ p ^ "\n")
		   | "RewriteRule" :: src :: dst :: rest =>
		     let
			 val flags =
			     case rest of
				 [] => SOME ""
			       | [flags] => if checkRewriteArgs (path, flags) then SOME flags else NONE
			       | _ => (Domtool.error (path, "Invalid mod_rewrite flags in " ^ chop line); NONE)
		     in
			 case flags of
			     SOME flags =>
			     (if not (!rewrite) then
				  (rewrite := true;
				   TextIO.output (vhosts, "\tRewriteEngine on\n"))
			     else
				 ();
  			     TextIO.output (vhosts, "\tRewriteRule\t" ^ src ^ " " ^ dst ^ " " ^ flags ^ "\n"))
			   | _ => ()
		     end
		   | ["LocalProxy", src, dst, port] =>
		     (case Int.fromString port of
			  NONE => Domtool.error (path, "Invalid port number " ^ port)
			| SOME n =>
			  if n = 80 then
			      Domtool.error (path, "No proxying back to Apache itself allowed")
			  else if n <= 0 then
			      Domtool.error (path, "Port number must be positive: " ^ port)
			  else
			      (if not (!rewrite) then
				   (rewrite := true;
				    TextIO.output (vhosts, "\tRewriteEngine on\n"))
			       else
				   ();
				   TextIO.output (vhosts, "\tRewriteRule\t" ^ src ^ " http://localhost:" ^ port ^ "/" ^ dst ^ " [P]\n")))
		   | ["Alias", from, to] =>
		     if checkPath (paths, to) then
			 TextIO.output (vhosts, "\tAlias " ^ from ^ " " ^ to ^ "\n")
		     else
			 Domtool.error (path, "not authorized to use " ^ to)
		   | "ErrorDocument" :: code :: rest =>
		     TextIO.output (vhosts, foldl (fn (a, s) => s ^ " " ^ a) ("\tErrorDocument " ^ code) rest ^ "\n")
		   | ["ScriptAlias", from, to] =>
		     if checkPath (paths, to) then
			 TextIO.output (vhosts, "\tScriptAlias " ^ from ^ " \"" ^ to ^ "\"\n")
		     else
			 Domtool.error (path, "not authorized to use " ^ to)
		   | ["SSI"] =>
		     TextIO.output (vhosts, "\t<Location />\n\t\tOptions +Includes +IncludesNOEXEC\n\t</Location>\n")
		   | ["ServerAlias", dom] =>
		     if validDomain dom then
			 let
			     val file = foldr (fn (c, s) => s ^ "/" ^ c) dataDir (String.fields (fn ch => ch = #".") dom) ^ ".aliased"
			 in
			     if Posix.FileSys.access (file, []) then
				 (TextIO.output (vhosts, "\tServerAlias " ^ dom ^ "\n");
				  TextIO.output (conf, "HideSite\t" ^ dom ^ "\n" ^
						       "HideReferrer\t" ^ dom ^ "\n"))
			     else
				 Domtool.error (path, "not authorized to ServerAlias " ^ dom)
			 end
		     else
			 Domtool.error (path, "bad host: " ^ dom)
		   | "WebalizerUsers" :: users =>
		     TextIO.output (htac, "AuthType Basic\n" ^
					  "AuthName \"Abulafia web account\"\n" ^
					  "AuthUserFile " ^ passwdFile ^ "\n" ^
					  foldl (fn (u, s) => s ^ " " ^ u) "Require user" users ^ "\n")
		   | ["AbuPrivate"] => TextIO.output (vhosts,
						      "\t<Location />\n" ^
						      "\t\tAuthName \"Abulafia web account\"\n" ^
						      "\t\tAuthType basic\n" ^
						      "\t\tAuthUserFile " ^ passwdFile ^ "\n" ^
						      "\t\tRequire valid-user\n" ^
						      "\t\tOrder Deny,Allow\n" ^
						      "\t\tDeny from all\n" ^
						      "\t\tAllow from 127.0.0.1\n" ^
						      "\t\tAllow from 63.246.10.45\n" ^
						      "\t\tSatisfy any\n" ^
						      "\t</Location>\n")
		   | ["Default"] => (TextIO.output (vhosts, "\tServerAlias " ^ parent ^ "\n");
				     TextIO.output (conf, "HideSite\t" ^ parent ^ "\n" ^
							  "HideReferrer\t" ^ parent ^ "\n"))
		   | ["CGI", p] =>
		     if checkPath (paths, p) then
			 TextIO.output (vhosts, "\t<Directory " ^ p ^ ">\n" ^
						"\t\tOptions ExecCGI\n" ^
						"\t\tSetHandler cgi-script\n" ^
						"\t</Directory>\n")
		     else
			 Domtool.error (path, "not authorized to use " ^ p)
		   | ["HTML", p] =>
		     if checkPath (paths, p) then
			 TextIO.output (vhosts, "\t<Directory " ^ p ^ ">\n" ^
						"\t\tForceType text/html\n" ^
						"\t</Directory>\n")
		     else
			 Domtool.error (path, "not authorized to use " ^ p)
		   | cmd::_ => Domtool.error (path, "unknown option: " ^ cmd))
	in
	    TextIO.output (vhosts, "<VirtualHost *>\n" ^
				   "\tServerName " ^ domain ^ "\n" ^
				   "\tErrorLog " ^ logDir ^ domain ^ "-error.log\n" ^
				   "\tCustomLog " ^ logDir ^ domain ^ "-access.log combined\n" ^
				   "\tIndexOptions FancyIndexing FoldersFirst\n");
	    ioOptLoop (fn () => Domtool.inputLine hf) loop ();
	    TextIO.output (vhosts, "\tUser ");
	    TextIO.output (vhosts, !user);
	    TextIO.output (vhosts, "\n\tGroup ");
	    TextIO.output (vhosts, !group);
	    TextIO.output (vhosts, "\n</VirtualHost>\n\n");
	    TextIO.closeIn hf;
	    TextIO.closeOut conf;
	    TextIO.closeOut htac
	end handle Io => Domtool.error (path, "IO error")

    fun publish () =
	if OS.Process.isSuccess (OS.Process.system
	       (diff ^ " " ^ scratchDir ^ "/vhosts.conf " ^ dataFile)) then
	    OS.Process.success
	else if not (OS.Process.isSuccess (OS.Process.system
	       (cp ^ " " ^ scratchDir ^ "/vhosts.conf " ^ dataFile))) then
	    (print "Error copying vhosts.conf\n";
	     OS.Process.failure)
	else if not (OS.Process.isSuccess (OS.Process.system pubCommand)) then
	    (print "Error publishing vhosts.conf\n";
	     OS.Process.failure)
	else if OS.Process.isSuccess (OS.Process.system logpermsCommand) then
	    OS.Process.success
	else
	    (print "Error updating log permissions\n";
	     OS.Process.failure)

    fun mkdom _ = OS.Process.success

    val _ = Domtool.setVhostHandler {init = init,
				     file = handler,
				     finish = finish,
				     publish = publish,
				     mkdom = mkdom}
end
Commit	Line	Data
182a2654 AC	1	(*
	2	Domtool (http://hcoop.sf.net/)
	3	Copyright (C) 2004 Adam Chlipala
	4
	5	This program is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU General Public License
	7	as published by the Free Software Foundation; either version 2
	8	of the License, or (at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software
	17	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	18	*)
	19
	20	(* Apache vhost management module, with Webalizer support *)
	21
	22	structure Apache :> APACHE =
	23	struct
	24	open Config ApacheConfig Util
	25
	26	val vhosts = ref (NONE : TextIO.outstream option)
1e2e348e	27	val loggroups = ref (NONE : TextIO.outstream option)
182a2654	28
1e2e348e AC	29	fun init () = (vhosts := SOME (TextIO.openOut (scratchDir ^ "/vhosts.conf"));
1e2e348e AC	30	loggroups := SOME (TextIO.openOut (scratchDir ^ "/loggroups")))
182a2654	31	fun finish () = (TextIO.closeOut (valOf (!vhosts));
1e2e348e AC	32	vhosts := NONE;
	33	TextIO.closeOut (valOf (!loggroups));
	34	loggroups := NONE)
182a2654	35
05060d16 AC	36	val noargs = ["redirect", "R", "forbidden", "F", "gone", "G", "last", "L", "chain", "C", "nosubeq", "NS", "nocase", "NC", "qsappend", "QSA", "noescape", "NE", "passthrough", "PT"]
	37
	38	fun checkRewriteArgs (path, args) =
	39	if size args < 2 orelse String.sub (args, 0) <> #"[" orelse String.sub (args, size args - 1) <> #"]" then
	40	(Domtool.error (path, "Not in brackets: " ^ args);
	41	false)
	42	else let
	43	val args = String.substring (args, 1, size args - 2)
	44	val fields = String.fields (fn ch => ch = #",") args
	45
	46	fun checkField f =
	47	case String.fields (fn ch => ch = #"=") f of
	48	[flag] => List.exists (fn x => x = flag) noargs orelse (Domtool.error (path, "Unknown argument-free flag " ^ flag);
	49	false)
05060d16 AC	50	\| ["type", _] => true
	51	\| ["T", _] => true
	52	\| ["skip", num] => isNat num orelse (Domtool.error (path, "Bad skip number " ^ num); false)
	53	\| ["S", num] => isNat num orelse (Domtool.error (path, "Bad skip number " ^ num); false)
	54	\| ["env", varval] =>
	55	(case String.fields (fn ch => ch = #":") varval of
	56	[_, _] => true
	57	\| _ => (Domtool.error (path, "Bad env setting " ^ varval);
	58	false))
	59	\| ["E", varval] =>
	60	(case String.fields (fn ch => ch = #":") varval of
	61	[_, _] => true
	62	\| _ => (Domtool.error (path, "Bad env setting " ^ varval);
	63	false))
	64	\| _ => (Domtool.error (path, "Unknown or disallowed mod_rewrite flag " ^ f);
	65	false)
	66	in
	67	List.all checkField fields
	68	end
	69
182a2654 AC	70	fun handler {path, domain, parent, vars, paths, users, groups} =
	71	let
	72	val _ = Domtool.dprint ("Reading host " ^ path ^ " for " ^ domain ^ "....")
	73
	74	val vhosts = valOf (!vhosts)
1e2e348e	75	val loggroups = valOf (!loggroups)
182a2654 AC	76
	77	val hf = TextIO.openIn path
	78	val rewrite = ref false
	79
	80	val conf = TextIO.openOut (wblConfDir ^ "/" ^ domain ^ ".conf")
	81	val _ = TextIO.output (conf, "LogFile\t" ^ logDir ^ domain ^ "-access.log\n" ^
	82	"OutputDir\t" ^ wblDocDir ^ "/" ^ domain ^ "\n" ^
	83	"HostName\t" ^ domain ^ "\n" ^
	84	"HideSite\t" ^ domain ^ "\n" ^
	85	"HideReferrer\t" ^ domain ^ "\n")
	86
	87	val dir = wblDocDir ^ "/" ^ domain
	88	val _ =
	89	if Posix.FileSys.access (dir, []) then
	90	()
	91	else
	92	Posix.FileSys.mkdir (dir, Posix.FileSys.S.flags [Posix.FileSys.S.ixoth, Posix.FileSys.S.irwxu,
	93	Posix.FileSys.S.irgrp, Posix.FileSys.S.iwgrp])
	94
	95	val htac = TextIO.openOut (dir ^ "/.htaccess")
	96	val user = ref defaultUser
	97	val group = ref defaultGroup
	98
	99	fun loop (line, ()) =
	100	(case String.tokens Char.isSpace line of
	101	[] => ()
	102	\| ["User", user'] =>
	103	if StringSet.member (users, user') then
	104	user := user'
	105	else
	106	Domtool.error (path, "not authorized to run as " ^ user')
	107	\| ["Group", group'] =>
	108	if StringSet.member (groups, group') then
1e2e348e AC	109	(group := group';
1e2e348e AC	110	TextIO.output (loggroups, domain ^ "\t" ^ group' ^ "\n"))
182a2654 AC	111	else
	112	Domtool.error (path, "not authorized to run as group " ^ group')
	113	\| ["ServerAdmin", email] => TextIO.output (vhosts, "\tServerAdmin " ^ email ^ "\n")
	114	\| ["UserDir"] => TextIO.output (vhosts, "\tUserDir public_html\n\t<Directory /home//public_html/cgi-bin>\n\t\tAllowOverride None\n\t\tOptions ExecCGI\n\t\tAllow from all\n\t\tSetHandler cgi-script\n\t</Directory>\n\tScriptAliasMatch ^/~(.)/cgi-bin/(.*) /home/$1/public_html/cgi-bin/$2\n")
	115	\| ["DocumentRoot", p] =>
	116	if checkPath (paths, p) then
	117	TextIO.output (vhosts, "\tDocumentRoot " ^ p ^ "\n")
	118	else
	119	print (path ^ ": not authorized to use " ^ p ^ "\n")
05060d16 AC	120	\| "RewriteRule" :: src :: dst :: rest =>
	121	let
	122	val flags =
	123	case rest of
	124	[] => SOME ""
	125	\| [flags] => if checkRewriteArgs (path, flags) then SOME flags else NONE
	126	\| _ => (Domtool.error (path, "Invalid mod_rewrite flags in " ^ chop line); NONE)
	127	in
	128	case flags of
	129	SOME flags =>
	130	(if not (!rewrite) then
	131	(rewrite := true;
	132	TextIO.output (vhosts, "\tRewriteEngine on\n"))
	133	else
	134	();
	135	TextIO.output (vhosts, "\tRewriteRule\t" ^ src ^ " " ^ dst ^ " " ^ flags ^ "\n"))
	136	\| _ => ()
	137	end
	138	\| ["LocalProxy", src, dst, port] =>
	139	(case Int.fromString port of
	140	NONE => Domtool.error (path, "Invalid port number " ^ port)
	141	\| SOME n =>
	142	if n = 80 then
	143	Domtool.error (path, "No proxying back to Apache itself allowed")
	144	else if n <= 0 then
	145	Domtool.error (path, "Port number must be positive: " ^ port)
	146	else
1e2e348e AC	147	(if not (!rewrite) then
	148	(rewrite := true;
	149	TextIO.output (vhosts, "\tRewriteEngine on\n"))
	150	else
	151	();
	152	TextIO.output (vhosts, "\tRewriteRule\t" ^ src ^ " http://localhost:" ^ port ^ "/" ^ dst ^ " [P]\n")))
182a2654 AC	153	\| ["Alias", from, to] =>
	154	if checkPath (paths, to) then
	155	TextIO.output (vhosts, "\tAlias " ^ from ^ " " ^ to ^ "\n")
	156	else
	157	Domtool.error (path, "not authorized to use " ^ to)
	158	\| "ErrorDocument" :: code :: rest =>
	159	TextIO.output (vhosts, foldl (fn (a, s) => s ^ " " ^ a) ("\tErrorDocument " ^ code) rest ^ "\n")
	160	\| ["ScriptAlias", from, to] =>
	161	if checkPath (paths, to) then
	162	TextIO.output (vhosts, "\tScriptAlias " ^ from ^ " \"" ^ to ^ "\"\n")
	163	else
	164	Domtool.error (path, "not authorized to use " ^ to)
	165	\| ["SSI"] =>
	166	TextIO.output (vhosts, "\t<Location />\n\t\tOptions +Includes +IncludesNOEXEC\n\t</Location>\n")
	167	\| ["ServerAlias", dom] =>
	168	if validDomain dom then
	169	let
	170	val file = foldr (fn (c, s) => s ^ "/" ^ c) dataDir (String.fields (fn ch => ch = #".") dom) ^ ".aliased"
	171	in
	172	if Posix.FileSys.access (file, []) then
	173	(TextIO.output (vhosts, "\tServerAlias " ^ dom ^ "\n");
	174	TextIO.output (conf, "HideSite\t" ^ dom ^ "\n" ^
	175	"HideReferrer\t" ^ dom ^ "\n"))
	176	else
	177	Domtool.error (path, "not authorized to ServerAlias " ^ dom)
	178	end
	179	else
	180	Domtool.error (path, "bad host: " ^ dom)
	181	\| "WebalizerUsers" :: users =>
	182	TextIO.output (htac, "AuthType Basic\n" ^
	183	"AuthName \"Abulafia web account\"\n" ^
	184	"AuthUserFile " ^ passwdFile ^ "\n" ^
	185	foldl (fn (u, s) => s ^ " " ^ u) "Require user" users ^ "\n")
	186	\| ["AbuPrivate"] => TextIO.output (vhosts,
	187	"\t<Location />\n" ^
	188	"\t\tAuthName \"Abulafia web account\"\n" ^
	189	"\t\tAuthType basic\n" ^
	190	"\t\tAuthUserFile " ^ passwdFile ^ "\n" ^
	191	"\t\tRequire valid-user\n" ^
	192	"\t\tOrder Deny,Allow\n" ^
	193	"\t\tDeny from all\n" ^
	194	"\t\tAllow from 127.0.0.1\n" ^
	195	"\t\tAllow from 63.246.10.45\n" ^
	196	"\t\tSatisfy any\n" ^
	197	"\t</Location>\n")
	198	\| ["Default"] => (TextIO.output (vhosts, "\tServerAlias " ^ parent ^ "\n");
	199	TextIO.output (conf, "HideSite\t" ^ parent ^ "\n" ^
	200	"HideReferrer\t" ^ parent ^ "\n"))
	201	\| ["CGI", p] =>
	202	if checkPath (paths, p) then
	203	TextIO.output (vhosts, "\t<Directory " ^ p ^ ">\n" ^
	204	"\t\tOptions ExecCGI\n" ^
	205	"\t\tSetHandler cgi-script\n" ^
	206	"\t</Directory>\n")
	207	else
	208	Domtool.error (path, "not authorized to use " ^ p)
	209	\| ["HTML", p] =>
	210	if checkPath (paths, p) then
	211	TextIO.output (vhosts, "\t<Directory " ^ p ^ ">\n" ^
	212	"\t\tForceType text/html\n" ^
	213	"\t</Directory>\n")
	214	else
	215	Domtool.error (path, "not authorized to use " ^ p)
	216	\| cmd::_ => Domtool.error (path, "unknown option: " ^ cmd))
217	in
218	TextIO.output (vhosts, "<VirtualHost *>\n" ^
219	"\tServerName " ^ domain ^ "\n" ^
220	"\tErrorLog " ^ logDir ^ domain ^ "-error.log\n" ^
221	"\tCustomLog " ^ logDir ^ domain ^ "-access.log combined\n" ^
222	"\tIndexOptions FancyIndexing FoldersFirst\n");
05060d16	223	ioOptLoop (fn () => Domtool.inputLine hf) loop ();
182a2654 AC	224	TextIO.output (vhosts, "\tUser ");
	225	TextIO.output (vhosts, !user);
	226	TextIO.output (vhosts, "\n\tGroup ");
	227	TextIO.output (vhosts, !group);
	228	TextIO.output (vhosts, "\n</VirtualHost>\n\n");
	229	TextIO.closeIn hf;
	230	TextIO.closeOut conf;
	231	TextIO.closeOut htac
	232	end handle Io => Domtool.error (path, "IO error")
	233
	234	fun publish () =
	235	if OS.Process.isSuccess (OS.Process.system
	236	(diff ^ " " ^ scratchDir ^ "/vhosts.conf " ^ dataFile)) then
	237	OS.Process.success
	238	else if not (OS.Process.isSuccess (OS.Process.system
	239	(cp ^ " " ^ scratchDir ^ "/vhosts.conf " ^ dataFile))) then
	240	(print "Error copying vhosts.conf\n";
	241	OS.Process.failure)
1e2e348e AC	242	else if not (OS.Process.isSuccess (OS.Process.system pubCommand)) then
	243	(print "Error publishing vhosts.conf\n";
	244	OS.Process.failure)
	245	else if OS.Process.isSuccess (OS.Process.system logpermsCommand) then
182a2654 AC	246	OS.Process.success
182a2654 AC	247	else
1e2e348e	248	(print "Error updating log permissions\n";
182a2654 AC	249	OS.Process.failure)
	250
	251	fun mkdom _ = OS.Process.success
	252
	253	val _ = Domtool.setVhostHandler {init = init,
	254	file = handler,
	255	finish = finish,
	256	publish = publish,
	257	mkdom = mkdom}
	258	end
	259