Support ! as a ProxyPass target
[hcoop/domtool2.git] / src / plugins / apache.sml
index f7d13c2..e160745 100644 (file)
@@ -1,5 +1,6 @@
 (* HCoop Domtool (http://hcoop.sourceforge.net/)
- * Copyright (c) 2006, Adam Chlipala
+ * Copyright (c) 2006-2009, Adam Chlipala
+ * Copyright (c) 2013 Clinton Ebadi
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -22,37 +23,73 @@ structure Apache :> APACHE = struct
 
 open Ast
 
+val dl = ErrorMsg.dummyLoc
+
+fun webNode node =
+    List.exists (fn (x, _) => x = node) Config.Apache.webNodes_all
+    orelse (Domain.hasPriv "www"
+           andalso List.exists (fn (x, _) => x = node) Config.Apache.webNodes_admin)
+
 val _ = Env.type_one "web_node"
        Env.string
-       (fn node =>
-           List.exists (fn x => x = node) Config.Apache.webNodes_all
-           orelse (Domain.hasPriv "www"
-                   andalso List.exists (fn x => x = node) Config.Apache.webNodes_admin))
+       webNode
 
 val _ = Env.registerFunction ("web_node_to_node",
                              fn [e] => SOME e
                               | _ => NONE)
 
+fun webPlace (EApp ((EVar "web_place_default", _), (EString node, _)), _) =
+    SOME (node, Domain.nodeIp node)
+  | webPlace (EApp ((EApp ((EVar "web_place", _), (EString node, _)), _), (EString ip, _)), _) =
+    SOME (node, ip)
+  | webPlace _ = NONE
+
+fun webPlaceDefault node = (EApp ((EVar "web_place_default", dl), (EString node, dl)), dl)
+
+val _ = Env.registerFunction ("web_place_to_web_node",
+                             fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
+                              | _ => NONE)
+
+val _ = Env.registerFunction ("web_place_to_node",
+                             fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
+                              | _ => NONE)
+
+val _ = Env.registerFunction ("web_place_to_ip",
+                             fn [e] => Option.map (fn (_, ip) => (EString ip, dl)) (webPlace e)
+                              | _ => NONE)
+
 val _ = Env.type_one "proxy_port"
        Env.int
        (fn n => n > 1024)
 
+fun validProxyTarget default s =
+    case String.fields (fn ch => ch = #":") s of
+       "http" :: host :: rest =>
+       let
+           val rest = String.concatWith ":" rest
+       in
+           if List.exists (fn h' => host = h') (map (fn h => String.concat ["//", h]) Config.Apache.proxyHosts)
+           then
+               CharVector.all (fn ch => Char.isPrint ch andalso not (Char.isSpace ch)
+                                        andalso ch <> #"\"" andalso ch <> #"'") rest
+               andalso case String.fields (fn ch => ch = #"/") rest of
+                           port :: _ =>
+                           (case Int.fromString port of
+                                NONE => default s
+                              | SOME n => n > 1024 orelse default s)
+                         | _ => default s
+           else
+               default s
+       end
+      | _ => default s
+
 val _ = Env.type_one "proxy_target"
        Env.string
-       (fn s =>
-           let
-               fun default () = List.exists (fn s' => s = s') Config.Apache.proxyTargets
-           in
-               case String.fields (fn ch => ch = #":") s of
-                   ["http", "//localhost", rest] =>
-                   (case String.fields (fn ch => ch = #"/") rest of
-                        port :: _ =>
-                        (case Int.fromString port of
-                             NONE => default ()
-                           | SOME n => n > 1024 orelse default ())
-                      | _ => default ())
-                 | _ => default ()
-           end)
+       (validProxyTarget (fn s => List.exists (fn s' => s = s') (Config.Apache.proxyTargets @ ["!"])))
+
+val _ = Env.type_one "proxy_reverse_target"
+       Env.string
+       (validProxyTarget (fn s => List.exists (fn s' => s = s') Config.Apache.proxyTargets))
 
 val _ = Env.type_one "rewrite_arg"
        Env.string
@@ -62,13 +99,18 @@ val _ = Env.type_one "suexec_flag"
        Env.bool
        (fn b => b orelse Domain.hasPriv "www")
 
+val _ = Env.type_one "regexp"
+       Env.string
+       Pcre.validRegexp
+
 fun validLocation s =
     size s > 0 andalso size s < 1000 andalso CharVector.all
                                                 (fn ch => Char.isAlphaNum ch
                                                           orelse ch = #"-"
                                                           orelse ch = #"_"
                                                           orelse ch = #"."
-                                                          orelse ch = #"/") s
+                                                          orelse ch = #"/"
+                                                          orelse ch = #"~") s
 
 val _ = Env.type_one "location"
        Env.string
@@ -78,44 +120,35 @@ fun validCert s = Acl.query {user = Domain.getUser (),
                             class = "cert",
                             value = s}
 
+fun validCaCert s = Acl.query {user = Domain.getUser (),
+                              class = "cacert",
+                              value = s}
+
 val _ = Env.type_one "ssl_cert_path"
        Env.string
        validCert
 
+val _ = Env.type_one "ssl_cacert_path"
+       Env.string
+       validCaCert
+
 fun ssl e = case e of
                (EVar "no_ssl", _) => SOME NONE
              | (EApp ((EVar "use_cert", _), s), _) => Option.map SOME (Env.string s)
              | _ => NONE
 
-val dl = ErrorMsg.dummyLoc
-
-val _ = Defaults.registerDefault ("WebNodes",
-                                 (TList (TBase "web_node", dl), dl),
-                                 (fn () => (EList (map (fn s => (EString s, dl)) Config.Apache.webNodes_default), dl)))
-
-val _ = Defaults.registerDefault ("SSL",
-                                 (TBase "ssl", dl),
-                                 (fn () => (EVar "false", dl)))
-
-val _ = Defaults.registerDefault ("User",
-                                 (TBase "your_user", dl),
-                                 (fn () => (EString (Domain.getUser ()), dl)))
-
-val _ = Defaults.registerDefault ("Group",
-                                 (TBase "your_group", dl),
-                                 (fn () => (EString (Domain.getUser ()), dl)))
+fun validExtension s =
+    size s > 0
+    andalso size s < 20
+    andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"_") s
 
-val _ = Defaults.registerDefault ("DocumentRoot",
-                                 (TBase "your_path", dl),
-                                 (fn () => (EString (Config.homeBase ^ "/" ^ Domain.getUser () ^ "/" ^ Config.Apache.public_html), dl)))
-
-val _ = Defaults.registerDefault ("ServerAdmin",
-                                 (TBase "email", dl),
-                                 (fn () => (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl)))
+val _ = Env.type_one "file_extension"
+       Env.string
+       validExtension
 
-val _ = Defaults.registerDefault ("SuExec",
-                                 (TBase "suexec_flag", dl),
-                                 (fn () => (EVar "true", dl)))
+val _ = Env.registerFunction ("defaultServerAdmin",
+                             fn [] => SOME (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl)
+                             | _ => NONE)
 
 val redirect_code = fn (EVar "temp", _) => SOME "temp"
                     | (EVar "permanent", _) => SOME "permanent"
@@ -160,6 +193,8 @@ val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC"
 val apache_option = fn (EVar "execCGI", _) => SOME "ExecCGI"
                     | (EVar "includesNOEXEC", _) => SOME "IncludesNOEXEC"
                     | (EVar "indexes", _) => SOME "Indexes"
+                    | (EVar "followSymLinks", _) => SOME "FollowSymLinks"
+                    | (EVar "multiViews", _) => SOME "MultiViews"
                     | _ => NONE
 
 val autoindex_width = fn (EVar "autofit", _) => SOME "*"
@@ -199,12 +234,27 @@ val autoindex_option = fn (EApp ((EVar "descriptionWidth", _), w), _) =>
 
                        | _ => NONE
 
+val interval_base = fn (EVar "access", _) => SOME "access"
+                    | (EVar "modification", _) => SOME "modification"
+                    | _ => NONE
+
+val interval = fn (EVar "years", _) => SOME "years"
+               | (EVar "months", _) => SOME "months"
+               | (EVar "weeks", _) => SOME "weeks"
+               | (EVar "days", _) => SOME "days"
+               | (EVar "hours", _) => SOME "hours"
+               | (EVar "minutes", _) => SOME "minutes"
+               | (EVar "seconds", _) => SOME "seconds"
+               | _ => NONE
+
 val vhostsChanged = ref false
 val logDeleted = ref false
+val delayedLogMoves = ref (fn () => ())
 
 val () = Slave.registerPreHandler
             (fn () => (vhostsChanged := false;
-                       logDeleted := false))
+                       logDeleted := false;
+                       delayedLogMoves := (fn () => print "Executing delayed log moves/deletes.\n")))
 
 fun findVhostUser fname =
     let
@@ -225,6 +275,37 @@ fun findVhostUser fname =
        before TextIO.closeIn inf
     end handle _ => NONE
 
+val webNodes_full = Config.Apache.webNodes_all @ Config.Apache.webNodes_admin
+
+fun isVersion1 node =
+    List.exists (fn (n, {version = ConfigTypes.APACHE_1_3, ...}) => n = node
+                 | _ => false) webNodes_full
+
+fun imVersion1 () = isVersion1 (Slave.hostname ())
+
+fun isWaklog node =
+    List.exists (fn (n, {auth = ConfigTypes.MOD_WAKLOG, ...}) => n = node
+                 | _ => false) webNodes_full
+
+fun down () = if imVersion1 () then Config.Apache.down1 else Config.Apache.down
+fun undown () = if imVersion1 () then Config.Apache.undown1 else Config.Apache.undown
+fun reload () = if imVersion1 () then Config.Apache.reload1 else Config.Apache.reload
+fun fixperms () = if imVersion1 () then Config.Apache.fixperms1 else Config.Apache.fixperms
+
+fun logDir {user, node, vhostId} =
+    String.concat [Config.Apache.logDirOf (isVersion1 node) user,
+                  "/",
+                  node,
+                  "/",
+                  vhostId]
+
+fun realLogDir {user, node, vhostId} =
+    String.concat [Config.Apache.realLogDirOf user,
+                  "/",
+                  node,
+                  "/",
+                  vhostId]
+
 val () = Slave.registerFileHandler (fn fs =>
                                       let
                                           val spl = OS.Path.splitDirFile (#file fs)
@@ -236,53 +317,51 @@ val () = Slave.registerFileHandler (fn fs =>
                                                                            file = #file spl}
 
                                                   val user = findVhostUser (#file fs)
-                                                  val oldUser = findVhostUser realVhostFile
+                                                  val oldUser = case #action fs of
+                                                                    Slave.Delete false => user
+                                                                  | _ => findVhostUser realVhostFile
                                               in
                                                   if (oldUser = NONE andalso #action fs <> Slave.Add)
-                                                     orelse (user = NONE andalso #action fs <> Slave.Delete) then
+                                                     orelse (user = NONE andalso not (Slave.isDelete (#action fs))) then
                                                       print ("Can't find user in " ^ #file fs ^ " or " ^ realVhostFile ^ "!  Taking no action.\n")
                                                   else
                                                       let
+                                                          val vhostId = if OS.Path.ext (#file spl) = SOME "vhost_ssl" then
+                                                                            OS.Path.base (#file spl) ^ ".ssl"
+                                                                        else
+                                                                            OS.Path.base (#file spl)
+
                                                           fun realLogDir user =
+                                                              logDir {user = valOf user,
+                                                                      node = Slave.hostname (),
+                                                                      vhostId = vhostId}
+
+                                                          fun backupLogs () =
+                                                              OS.Path.joinDirFile
+                                                                  {dir = Config.Apache.backupLogDirOf
+                                                                             (isVersion1 (Slave.hostname ())),
+                                                                   file = vhostId}
+                                                      in
+                                                          vhostsChanged := true;
+                                                          case #action fs of
+                                                              Slave.Delete _ =>
                                                               let
-                                                                  val realLogDir = OS.Path.joinDirFile
-                                                                                       {dir = Config.homeBase,
-                                                                                        file = valOf user}
-                                                                  val realLogDir = OS.Path.joinDirFile
-                                                                                       {dir = realLogDir,
-                                                                                        file = "apache"}
-                                                                  val realLogDir = OS.Path.joinDirFile
-                                                                                       {dir = realLogDir,
-                                                                                        file = "log"}
-                                                                  val realLogDir = OS.Path.joinDirFile
-                                                                                       {dir = realLogDir,
-                                                                                        file = Slave.hostname ()}
-                                                                  val {base, ...} = OS.Path.splitBaseExt (#file spl)
-
-                                                                  val realLogDir = OS.Path.joinDirFile
-                                                                                       {dir = realLogDir,
-                                                                                        file = base}
+                                                                  val ldir = realLogDir oldUser
+                                                                  val dlm = !delayedLogMoves
                                                               in
-                                                                  if String.isSuffix ".vhost_ssl" (#file spl) then
-                                                                      realLogDir ^ ".ssl"
+                                                                  if !logDeleted then
+                                                                      ()
                                                                   else
-                                                                      realLogDir
+                                                                      ((*ignore (OS.Process.system (down ()));*)
+                                                                       ignore (OS.Process.system (fixperms ()));
+                                                                       logDeleted := true);
+                                                                  ignore (OS.Process.system (Config.rm
+                                                                                             ^ " -rf "
+                                                                                             ^ realVhostFile));
+                                                                  delayedLogMoves := (fn () => (dlm ();
+                                                                                                Slave.moveDirCreate {from = ldir,
+                                                                                                                     to = backupLogs ()}))
                                                               end
-                                                      in
-                                                          vhostsChanged := true;
-                                                          case #action fs of
-                                                              Slave.Delete =>
-                                                              (if !logDeleted then
-                                                                   ()
-                                                               else
-                                                                   (ignore (OS.Process.system Config.Apache.down);
-                                                                    logDeleted := true);
-                                                               ignore (OS.Process.system (Config.rm
-                                                                                          ^ " -rf "
-                                                                                          ^ realVhostFile));
-                                                               ignore (OS.Process.system (Config.rm
-                                                                                          ^ " -rf "
-                                                                                          ^ realLogDir oldUser)))
                                                             | Slave.Add =>
                                                               let
                                                                   val rld = realLogDir user
@@ -295,7 +374,8 @@ val () = Slave.registerFileHandler (fn fs =>
                                                                   if Posix.FileSys.access (rld, []) then
                                                                       ()
                                                                   else
-                                                                      OS.FileSys.mkDir rld
+                                                                      Slave.moveDirCreate {from = backupLogs (),
+                                                                                           to = rld}
                                                               end
                                                               
                                                             | _ =>
@@ -308,19 +388,22 @@ val () = Slave.registerFileHandler (fn fs =>
                                                                    let
                                                                        val old = realLogDir oldUser
                                                                        val rld = realLogDir user
+
+                                                                       val dlm = !delayedLogMoves
                                                                    in
                                                                        if !logDeleted then
                                                                            ()
                                                                        else
-                                                                           (ignore (OS.Process.system Config.Apache.down);
+                                                                           ((*ignore (OS.Process.system (down ()));*)
                                                                             logDeleted := true);
-                                                                       ignore (OS.Process.system (Config.rm
-                                                                                                  ^ " -rf "
-                                                                                                  ^ realLogDir oldUser));
+                                                                       delayedLogMoves := (fn () => (dlm ();
+                                                                                                     ignore (OS.Process.system (Config.rm
+                                                                                                                                ^ " -rf "
+                                                                                                                                ^ realLogDir oldUser))));
                                                                        if Posix.FileSys.access (rld, []) then
                                                                            ()
                                                                        else
-                                                                           OS.FileSys.mkDir rld
+                                                                           Slave.mkDirAll rld
                                                                    end
                                                                else
                                                                    ())
@@ -333,8 +416,9 @@ val () = Slave.registerFileHandler (fn fs =>
 val () = Slave.registerPostHandler
         (fn () =>
             (if !vhostsChanged then
-                 Slave.shellF ([if !logDeleted then Config.Apache.undown else Config.Apache.reload],
-                               fn cl => "Error reloading Apache with " ^ cl)
+                 (Slave.shellF ([reload ()],
+                             fn cl => "Error reloading Apache with " ^ cl);
+                  if !logDeleted then !delayedLogMoves () else ())
              else
                  ()))
 
@@ -344,8 +428,11 @@ fun write s = app (fn (_, file) => TextIO.output (file, s)) (!vhostFiles)
 
 val rewriteEnabled = ref false
 val localRewriteEnabled = ref false
+val expiresEnabled = ref false
+val localExpiresEnabled = ref false
 val currentVhost = ref ""
 val currentVhostId = ref ""
+val sslEnabled = ref false
 
 val pre = ref (fn _ : {user : string, nodes : string list, id : string, hostname : string} => ())
 fun registerPre f =
@@ -363,6 +450,9 @@ fun registerPost f =
        post := (fn () => (old (); f ()))
     end
 
+fun doPre x = !pre x
+fun doPost () = !post ()
+
 val aliaser = ref (fn _ : string => ())
 fun registerAliaser f =
     let
@@ -371,87 +461,127 @@ fun registerAliaser f =
        aliaser := (fn x => (old x; f x))
     end
 
-val () = Env.containerV_one "vhost"
-        ("host", Env.string)
-        (fn (env, host) =>
-            let
-                val nodes = Env.env (Env.list Env.string) (env, "WebNodes")
-
-                val ssl = Env.env ssl (env, "SSL")
-                val user = Env.env Env.string (env, "User")
-                val group = Env.env Env.string (env, "Group")
-                val docroot = Env.env Env.string (env, "DocumentRoot")
-                val sadmin = Env.env Env.string (env, "ServerAdmin")
-                val suexec = Env.env Env.bool (env, "SuExec")
-
-                val fullHost = host ^ "." ^ Domain.currentDomain ()
-                val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
-                val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
-            in
-                currentVhost := fullHost;
-                currentVhostId := vhostId;
+fun vhostPost () = (!post ();
+                   write "</VirtualHost>\n";
+                   app (TextIO.closeOut o #2) (!vhostFiles))
 
-                rewriteEnabled := false;
-                localRewriteEnabled := false;
-                vhostFiles := map (fn node =>
-                                      let
-                                          val file = Domain.domainFile {node = node,
-                                                                        name = confFile}
-                                      in
-                                          TextIO.output (file, "# Owner: ");
+val php_version = fn (EVar "php5", _) => SOME 5
+                  | _ => NONE
+
+fun vhostBody (env, makeFullHost) =
+    let
+       val places = Env.env (Env.list webPlace) (env, "WebPlaces")
+
+       val ssl = Env.env ssl (env, "SSL")
+       val user = Env.env Env.string (env, "User")
+       val group = Env.env Env.string (env, "Group")
+       val docroot = Env.env Env.string (env, "DocumentRoot")
+       val sadmin = Env.env Env.string (env, "ServerAdmin")
+       val suexec = Env.env Env.bool (env, "SuExec")
+       val php = Env.env php_version (env, "PhpVersion")
+
+       val fullHost = makeFullHost (Domain.currentDomain ())
+       val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
+       val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
+    in
+       currentVhost := fullHost;
+       currentVhostId := vhostId;
+       sslEnabled := Option.isSome ssl;
+
+       rewriteEnabled := false;
+       localRewriteEnabled := false;
+       expiresEnabled := false;
+       localExpiresEnabled := false;
+       vhostFiles := map (fn (node, ip) =>
+                             let
+                                 val file = Domain.domainFile {node = node,
+                                                               name = confFile}
+
+                                 val ld = logDir {user = user, node = node, vhostId = vhostId}
+                             in
+                                 TextIO.output (file, "# Owner: ");
+                                 TextIO.output (file, user);
+                                 TextIO.output (file, "\n<VirtualHost ");
+                                 TextIO.output (file, ip);
+                                 TextIO.output (file, ":");
+                                 TextIO.output (file, case ssl of
+                                                          SOME _ => "443"
+                                                        | NONE => "80");
+                                 TextIO.output (file, ">\n");
+                                 TextIO.output (file, "\tErrorLog ");
+                                 TextIO.output (file, ld);
+                                 TextIO.output (file, "/error.log\n\tCustomLog ");
+                                 TextIO.output (file, ld);
+                                 TextIO.output (file, "/access.log combined\n");
+                                 TextIO.output (file, "\tServerName ");
+                                 TextIO.output (file, fullHost);
+                                 app
+                                     (fn dom => (TextIO.output (file, "\n\tServerAlias ");
+                                                 TextIO.output (file, makeFullHost dom)))
+                                     (Domain.currentAliasDomains ());
+
+                                 if suexec then
+                                     if isVersion1 node then
+                                         (TextIO.output (file, "\n\tUser ");
                                           TextIO.output (file, user);
-                                          TextIO.output (file, "\n<VirtualHost ");
-                                          TextIO.output (file, Domain.nodeIp node);
-                                          TextIO.output (file, ":");
-                                          TextIO.output (file, case ssl of
-                                                                   SOME _ => "443"
-                                                                 | NONE => "80");
-                                          TextIO.output (file, ">\n");
-                                          TextIO.output (file, "\tErrorLog ");
-                                          TextIO.output (file, Config.homeBase);
-                                          TextIO.output (file, "/");
+                                          TextIO.output (file, "\n\tGroup ");
+                                          TextIO.output (file, group))
+                                     else
+                                         (TextIO.output (file, "\n\tSuexecUserGroup ");
                                           TextIO.output (file, user);
-                                          TextIO.output (file, "/apache/log/");
-                                          TextIO.output (file, node);
-                                          TextIO.output (file, "/");
-                                          TextIO.output (file, vhostId);
-                                          TextIO.output (file, "/error.log\n\tCustomLog ");
-                                          TextIO.output (file, Config.homeBase);
-                                          TextIO.output (file, "/");
+                                          TextIO.output (file, " ");
+                                          TextIO.output (file, group);
+                                          TextIO.output (file, "\n\tsuPHP_UserGroup ");
                                           TextIO.output (file, user);
-                                          TextIO.output (file, "/apache/log/");
-                                          TextIO.output (file, node);
-                                          TextIO.output (file, "/");
-                                          TextIO.output (file, vhostId);
-                                          TextIO.output (file, "/access.log combined\n");
-                                          (Config.homeBase ^ "/" ^ user ^ "/apache/log/"
-                                           ^ node ^ "/" ^ vhostId, file)
-                                      end)
-                                  nodes;
-                write "\tServerName ";
-                write fullHost;
-                if suexec then
-                    (write "\n\tSuexecUserGroup ";
-                     write user;
-                     write " ";
-                     write group)
-                else
-                    ();
-                write "\n\tDocumentRoot ";
-                write docroot;
-                write "\n\tServerAdmin ";
-                write sadmin;
-                case ssl of
-                    SOME cert =>
-                    (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
-                     write cert)
-                  | NONE => ();
-                write "\n";
-                !pre {user = user, nodes = nodes, id = vhostId, hostname = fullHost}
-            end,
-         fn () => (!post ();
-                   write "</VirtualHost>\n";
-                   app (TextIO.closeOut o #2) (!vhostFiles)))
+                                          TextIO.output (file, " ");
+                                          TextIO.output (file, group))
+                                 else
+                                     ();
+
+                                 if isWaklog node then
+                                     (TextIO.output (file, "\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
+                                      TextIO.output (file, user);
+                                      TextIO.output (file, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
+                                      TextIO.output (file, user))
+                                 else
+                                     ();
+
+                                 TextIO.output (file, "\n\tDAVLockDB /var/lock/apache2/dav/");
+                                 TextIO.output (file, user);
+                                 TextIO.output (file, "/DAVLock");
+
+                                 if php <> Config.Apache.defaultPhpVersion then
+                                     (TextIO.output (file, "\n\tAddHandler x-httpd-php");
+                                      TextIO.output (file, Int.toString php);
+                                      TextIO.output (file, " .php .phtml"))
+                                 else
+                                     ();
+
+                                 (ld, file)
+                             end)
+                         places;
+       write "\n\tDocumentRoot ";
+       write docroot;
+       write "\n\tServerAdmin ";
+       write sadmin;
+       case ssl of
+           SOME cert =>
+           (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
+            write cert)
+         | NONE => ();
+       write "\n";
+       !pre {user = user, nodes = map #1 places, id = vhostId, hostname = fullHost};
+       app (fn dom => !aliaser (makeFullHost dom)) (Domain.currentAliasDomains ())
+    end    
+
+val () = Env.containerV_one "vhost"
+        ("host", Env.string)
+        (fn (env, host) => vhostBody (env, fn dom => host ^ "." ^ dom),
+         vhostPost)
+
+val () = Env.containerV_none "vhostDefault"
+        (fn env => vhostBody (env, fn dom => dom),
+         vhostPost)
 
 val inLocal = ref false
 
@@ -464,7 +594,8 @@ val () = Env.container_one "location"
              inLocal := true),
          fn () => (write "\t</Location>\n";
                    inLocal := false;
-                   localRewriteEnabled := false))
+                   localRewriteEnabled := false;
+                   localExpiresEnabled := false))
 
 val () = Env.container_one "directory"
         ("directory", Env.string)
@@ -475,11 +606,22 @@ val () = Env.container_one "directory"
              inLocal := true),
          fn () => (write "\t</Directory>\n";
                    inLocal := false;
-                   localRewriteEnabled := false))
+                   localRewriteEnabled := false;
+                   localExpiresEnabled := false))
+
+val () = Env.container_one "filesMatch"
+        ("regexp", Env.string)
+        (fn prefix =>
+            (write "\t<FilesMatch \"";
+             write prefix;
+             write "\">\n"),
+         fn () => (write "\t</FilesMatch>\n";
+                   localRewriteEnabled := false;
+                   localExpiresEnabled := false))
 
 fun checkRewrite () =
     if !inLocal then
-       if !rewriteEnabled orelse !localRewriteEnabled then
+       if !localRewriteEnabled then
            ()
        else
            (write "\tRewriteEngine on\n";
@@ -490,18 +632,49 @@ fun checkRewrite () =
        (write "\tRewriteEngine on\n";
         rewriteEnabled := true)
 
+fun checkExpires () =
+    if !inLocal then
+       if !localExpiresEnabled then
+           ()
+       else
+           (write "\tExpiresActive on\n";
+            localExpiresEnabled := true)
+    else if !expiresEnabled then
+       ()
+    else
+       (write "\tExpiresActive on\n";
+        expiresEnabled := true)
+
 val () = Env.action_three "localProxyRewrite"
         ("from", Env.string, "to", Env.string, "port", Env.int)
         (fn (from, to, port) =>
             (checkRewrite ();
-             write "\tRewriteRule\t";
+             write "\tRewriteRule\t\"";
              write from;
-             write "\thttp://localhost:";
+             write "\"\thttp://localhost:";
              write (Int.toString port);
              write "/";
              write to;
              write " [P]\n"))
 
+val () = Env.action_four "expiresByType"
+        ("mime", Env.string, "base", interval_base, "num", Env.int, "inter", interval)
+        (fn (mime, base, num, inter) =>
+            (checkExpires ();
+             write "\tExpiresByType\t\"";
+             write mime;
+             write "\"\t\"";
+             write base;
+             write " plus ";
+             if num < 0 then
+                 (write "-";
+                  write (Int.toString (~num)))
+             else
+                 write (Int.toString num);
+             write " ";
+             write inter;
+             write "\"\n"))
+
 val () = Env.action_two "proxyPass"
         ("from", Env.string, "to", Env.string)
         (fn (from, to) =>
@@ -524,10 +697,11 @@ val () = Env.action_three "rewriteRule"
         ("from", Env.string, "to", Env.string, "flags", Env.list flag)
         (fn (from, to, flags) =>
             (checkRewrite ();
-             write "\tRewriteRule\t";
+             write "\tRewriteRule\t\"";
              write from;
-             write "\t";
+             write "\"\t\"";
              write to;
+             write "\"";
              case flags of
                  [] => ()
                | flag::rest => (write " [";
@@ -541,10 +715,11 @@ val () = Env.action_three "rewriteCond"
         ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
         (fn (from, to, flags) =>
             (checkRewrite ();
-             write "\tRewriteCond\t";
+             write "\tRewriteCond\t\"";
              write from;
-             write "\t";
+             write "\"\t\"";
              write to;
+             write "\"";
              case flags of
                  [] => ()
                | flag::rest => (write " [";
@@ -554,6 +729,14 @@ val () = Env.action_three "rewriteCond"
                                 write "]");
              write "\n"))
 
+val () = Env.action_one "rewriteBase"
+        ("prefix", Env.string)
+        (fn prefix =>
+            (checkRewrite ();
+             write "\tRewriteBase\t\"";
+             write prefix;
+             write "\"\n"))
+
 val () = Env.action_one "rewriteLogLevel"
         ("level", Env.int)
         (fn level =>
@@ -585,12 +768,24 @@ val () = Env.action_two "scriptAlias"
 val () = Env.action_two "errorDocument"
         ("code", Env.string, "handler", Env.string)
         (fn (code, handler) =>
-            (write "\tErrorDocument\t";
-             write code;
-             write " ";
-             write handler;
-             write "\n"))
+            let
+                val hasSpaces = CharVector.exists Char.isSpace handler
 
+                fun maybeQuote () =
+                    if hasSpaces then
+                        write "\""
+                    else
+                        ()
+            in
+                write "\tErrorDocument\t";
+                write code;
+                write " ";
+                maybeQuote ();
+                write handler;
+                maybeQuote ();
+                write "\n"
+            end)
+                         
 val () = Env.action_one "options"
         ("options", Env.list apache_option)
         (fn opts =>
@@ -618,6 +813,12 @@ val () = Env.action_one "unset_options"
                       app (fn opt => (write " -"; write opt)) opts;
                       write "\n"))
 
+val () = Env.action_one "cgiExtension"
+        ("extension", Env.string)
+        (fn ext => (write "\tAddHandler cgi-script ";
+                    write ext;
+                    write "\n"))
+
 val () = Env.action_one "directoryIndex"
         ("filenames", Env.list Env.string)
         (fn opts =>
@@ -625,7 +826,7 @@ val () = Env.action_one "directoryIndex"
              app (fn opt => (write " "; write opt)) opts;
              write "\n"))
 
-val () = Env.action_one "serverAlias"
+val () = Env.action_one "serverAliasHost"
         ("host", Env.string)
         (fn host =>
             (write "\tServerAlias ";
@@ -633,16 +834,52 @@ val () = Env.action_one "serverAlias"
              write "\n";
              !aliaser host))
 
+val () = Env.action_one "serverAlias"
+        ("host", Env.string)
+        (fn host =>
+            (app
+                 (fn dom =>
+                     let
+                         val full = host ^ "." ^ dom
+                     in
+                         write "\tServerAlias ";
+                         write full;
+                         write "\n";
+                         !aliaser full
+                     end)
+                 (Domain.currentDomains ())))
+
+val () = Env.action_none "serverAliasDefault"
+        (fn () =>
+            (app
+                 (fn dom =>
+                         (write "\tServerAlias ";
+                          write dom;
+                          write "\n";
+                          !aliaser dom))
+                 (Domain.currentDomains ())))
+
 val authType = fn (EVar "basic", _) => SOME "basic"
                | (EVar "digest", _) => SOME "digest"
+               | (EVar "kerberos", _) => SOME "kerberos"
                | _ => NONE
 
+fun allowAuthType "kerberos" = !sslEnabled
+  | allowAuthType _ = true
+
 val () = Env.action_one "authType"
         ("type", authType)
         (fn ty =>
-            (write "\tAuthType ";
-             write ty;
-             write "\n"))
+            if allowAuthType ty then
+                (write "\tAuthType ";
+                 write ty;
+                 write "\n";
+                 case ty of
+                     "kerberos" => 
+                     write "\tKrbServiceName apache2\n\tKrb5Keytab /etc/keytabs/service/apache\n\tKrbMethodNegotiate on\n\tKrbMethodK5Passwd on\n\tKrbVerifyKDC on\n\tKrbAuthRealms HCOOP.NET\n\tKrbSaveCredentials on\n"
+                   | _ => ())
+            else
+                print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 
 val () = Env.action_one "authName"
         ("name", Env.string)
@@ -658,6 +895,13 @@ val () = Env.action_one "authUserFile"
              write name;
              write "\n"))
 
+val () = Env.action_one "authGroupFile"
+        ("file", Env.string)
+        (fn name =>
+            (write "\tAuthGroupFile ";
+             write name;
+             write "\n"))
+
 val () = Env.action_none "requireValidUser"
         (fn () => write "\tRequire valid-user\n")
 
@@ -750,6 +994,9 @@ val () = Env.action_one "authzSvnAccessFile"
                      write path;
                      write "\n"))*)
 
+val () = Env.action_none "davFilesystem"
+        (fn path => write "\tDAV filesystem\n")
+
 val () = Env.action_two "addDescription"
         ("description", Env.string, "patterns", Env.list Env.string)
         (fn (desc, pats) =>
@@ -761,6 +1008,17 @@ val () = Env.action_two "addDescription"
                       app (fn pat => (write " "; write pat)) pats;
                       write "\n"))
 
+val () = Env.action_two "addIcon"
+        ("icon", Env.string, "patterns", Env.list Env.string)
+        (fn (icon, pats) =>
+            case pats of
+                [] => ()
+              | _ => (write "\tAddIcon \"";
+                      write icon;
+                      write "\"";
+                      app (fn pat => (write " "; write pat)) pats;
+                      write "\n"))
+
 val () = Env.action_one "indexOptions"
         ("options", Env.list autoindex_option)
         (fn opts =>
@@ -774,6 +1032,15 @@ val () = Env.action_one "indexOptions"
                                               (write "="; write arg)) arg)) opts;
                       write "\n"))
 
+val () = Env.action_one "indexIgnore"
+        ("patterns", Env.list Env.string)
+        (fn pats =>
+            case pats of
+                [] => ()
+              | _ => (write "\tIndexIgnore";
+                      app (fn pat => (write " "; write pat)) pats;
+                      write "\n"))
+
 val () = Env.action_one "set_indexOptions"
         ("options", Env.list autoindex_option)
         (fn opts =>
@@ -810,7 +1077,89 @@ val () = Env.action_one "readmeName"
                      write name;
                      write "\n"))
 
+val () = Env.action_two "setEnv"
+        ("key", Env.string, "value", Env.string)
+        (fn (key, value) => (write "\tSetEnv \"";
+                             write key;
+                             write "\" \"";
+                             write (String.translate (fn #"\"" => "\\\""
+                                                       | ch => str ch) value);
+                             write "\"\n"))
+
+val () = Env.action_one "diskCache"
+        ("path", Env.string)
+        (fn path => (write "\tCacheEnable disk \"";
+                     write path;
+                     write "\"\n"))
+
+val () = Env.action_one "phpVersion"
+        ("version", php_version)
+        (fn version => (write "\tAddHandler x-httpd-php";
+                        write (Int.toString version);
+                        write " .php .phtml\n"))
+
+val () = Env.action_two "addType"
+        ("mime type", Env.string, "extension", Env.string)
+        (fn (mt, ext) => (write "\tAddType ";
+                          write mt;
+                          write " ";
+                          write ext;
+                          write "\n"))
+
+val filter = fn (EVar "includes", _) => SOME "INCLUDES"
+             | (EVar "deflate", _) => SOME "DEFLATE"
+             | _ => NONE
+
+val () = Env.action_two "addOutputFilter"
+        ("filters", Env.list filter, "extensions", Env.list Env.string)
+        (fn (f :: fs, exts as (_ :: _)) =>
+            (write "\tAddOutputFilter ";
+             write f;
+             app (fn f => (write ";"; write f)) fs;
+             app (fn ext => (write " "; write ext)) exts;
+             write "\n")
+          | _ => ())
+
+val () = Env.action_one "sslCertificateChainFile"
+        ("ssl_cacert_path", Env.string)
+        (fn cacert =>
+            if !sslEnabled then
+                (write "\tSSLCertificateChainFile \"";
+                 write cacert;
+                 write "\"\n")
+            else
+                print "WARNING: Skipped sslCertificateChainFile because this isn't an SSL vhost.\n")
+
 val () = Domain.registerResetLocal (fn () =>
-                                      ignore (OS.Process.system (Config.rm ^ " -rf /var/domtool/vhosts/*")))
+                                      ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.Apache.confDir ^ "/*")))
+
+val () = Domain.registerDescriber (Domain.considerAll
+                                  [Domain.Extension {extension = "vhost",
+                                                     heading = fn host => "Web vhost " ^ host ^ ":"},
+                                   Domain.Extension {extension = "vhost_ssl",
+                                                     heading = fn host => "SSL web vhost " ^ host ^ ":"}])
+
+val () = Env.action_none "testNoHtaccess"
+        (fn path => write "\tAllowOverride None\n")
+
+fun writeWaklogUserFile () =
+    let
+       val users = Acl.users ()
+       val outf = TextIO.openOut Config.Apache.waklogUserFile
+    in
+       app (fn user => if String.isSuffix "_admin" user then
+                           ()
+                       else
+                           (TextIO.output (outf, "<Location /~");
+                            TextIO.output (outf, user);
+                            TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
+                            TextIO.output (outf, user);
+                            TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
+                            TextIO.output (outf, user);
+                            TextIO.output (outf, "\n</Location>\n\n"))) users;
+       TextIO.closeOut outf
+    end
+
+val () = Domain.registerOnUsersChange writeWaklogUserFile
 
 end