src/plugins/apache.sml

   1 (* HCoop Domtool (http://hcoop.sourceforge.net/)
   2  * Copyright (c) 2006-2009, Adam Chlipala
   3  * Copyright (c) 2013 Clinton Ebadi
   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *)
  19
  20 (* Apache HTTPD handling *)
  21
  22 structure Apache :> APACHE = struct
  23
  24 open Ast
  25
  26 val dl = ErrorMsg.dummyLoc
  27
  28 fun webNode node =
  29     List.exists (fn (x, _) => x = node) Config.Apache.webNodes_all
  30     orelse (Domain.hasPriv "www"
  31             andalso List.exists (fn (x, _) => x = node) Config.Apache.webNodes_admin)
  32
  33 val _ = Env.type_one "web_node"
  34         Env.string
  35         webNode
  36
  37 val _ = Env.registerFunction ("web_node_to_node",
  38                               fn [e] => SOME e
  39                                | _ => NONE)
  40
  41 fun webPlace (EApp ((EVar "web_place_default", _), (EString node, _)), _) =
  42     SOME (node, Domain.nodeIp node)
  43   | webPlace (EApp ((EApp ((EVar "web_place", _), (EString node, _)), _), (EString ip, _)), _) =
  44     SOME (node, ip)
  45   | webPlace _ = NONE
  46
  47 fun webPlaceDefault node = (EApp ((EVar "web_place_default", dl), (EString node, dl)), dl)
  48
  49 val _ = Env.registerFunction ("web_place_to_web_node",
  50                               fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
  51                                | _ => NONE)
  52
  53 val _ = Env.registerFunction ("web_place_to_node",
  54                               fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
  55                                | _ => NONE)
  56
  57 val _ = Env.registerFunction ("web_place_to_ip",
  58                               fn [e] => Option.map (fn (_, ip) => (EString ip, dl)) (webPlace e)
  59                                | _ => NONE)
  60
  61 val _ = Env.type_one "proxy_port"
  62         Env.int
  63         (fn n => n > 1024)
  64
  65 fun validProxyTarget default s =
  66     case String.fields (fn ch => ch = #":") s of
  67         "http" :: host :: rest =>
  68         let
  69             val rest = String.concatWith ":" rest
  70         in
  71             if List.exists (fn h' => host = h') (map (fn h => String.concat ["//", h]) Config.Apache.proxyHosts)
  72             then
  73                 CharVector.all (fn ch => Char.isPrint ch andalso not (Char.isSpace ch)
  74                                          andalso ch <> #"\"" andalso ch <> #"'") rest
  75                 andalso case String.fields (fn ch => ch = #"/") rest of
  76                             port :: _ =>
  77                             (case Int.fromString port of
  78                                  NONE => default s
  79                                | SOME n => n > 1024 orelse default s)
  80                           | _ => default s
  81             else
  82                 default s
  83         end
  84       | _ => default s
  85
  86 val _ = Env.type_one "proxy_target"
  87         Env.string
  88         (validProxyTarget (fn s => List.exists (fn s' => s = s') (Config.Apache.proxyTargets @ ["!"])))
  89
  90 val _ = Env.type_one "proxy_reverse_target"
  91         Env.string
  92         (validProxyTarget (fn s => List.exists (fn s' => s = s') Config.Apache.proxyTargets))
  93
  94 val _ = Env.type_one "rewrite_arg"
  95         Env.string
  96         (CharVector.all Char.isAlphaNum)
  97
  98 val _ = Env.type_one "suexec_flag"
  99         Env.bool
 100         (fn b => b orelse Domain.hasPriv "www")
 101
 102 val _ = Env.type_one "regexp"
 103         Env.string
 104         Pcre.validRegexp
 105
 106 fun validLocation s =
 107     size s > 0 andalso size s < 1000 andalso CharVector.all
 108                                                  (fn ch => Char.isAlphaNum ch
 109                                                            orelse ch = #"-"
 110                                                            orelse ch = #"_"
 111                                                            orelse ch = #"."
 112                                                            orelse ch = #"/"
 113                                                            orelse ch = #"~") s
 114
 115 val _ = Env.type_one "location"
 116         Env.string
 117         validLocation
 118
 119 fun validCert s = Acl.query {user = Domain.getUser (),
 120                              class = "cert",
 121                              value = s}
 122
 123 fun validCaCert s = Acl.query {user = Domain.getUser (),
 124                                class = "cacert",
 125                                value = s}
 126
 127 val _ = Env.type_one "ssl_cert_path"
 128         Env.string
 129         validCert
 130
 131 val _ = Env.type_one "ssl_cacert_path"
 132         Env.string
 133         validCaCert
 134
 135 fun ssl e = case e of
 136                 (EVar "no_ssl", _) => SOME NONE
 137               | (EApp ((EVar "use_cert", _), s), _) => Option.map SOME (Env.string s)
 138               | _ => NONE
 139
 140 fun validExtension s =
 141     size s > 0
 142     andalso size s < 20
 143     andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"_") s
 144
 145 val _ = Env.type_one "file_extension"
 146         Env.string
 147         validExtension
 148
 149 val _ = Env.registerFunction ("defaultServerAdmin",
 150                               fn [] => SOME (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl)
 151                               | _ => NONE)
 152
 153 val redirect_code = fn (EVar "temp", _) => SOME "temp"
 154                      | (EVar "permanent", _) => SOME "permanent"
 155                      | (EVar "seeother", _) => SOME "seeother"
 156                      | (EVar "redir300", _) => SOME "300"
 157                      | (EVar "redir301", _) => SOME "301"
 158                      | (EVar "redir302", _) => SOME "302"
 159                      | (EVar "redir303", _) => SOME "303"
 160                      | (EVar "redir304", _) => SOME "304"
 161                      | (EVar "redir305", _) => SOME "305"
 162                      | (EVar "redir307", _) => SOME "307"
 163                      | _ => NONE
 164
 165 val flag = fn (EVar "redirect", _) => SOME "R"
 166             | (EVar "forbidden", _) => SOME "F"
 167             | (EVar "gone", _) => SOME "G"
 168             | (EVar "last", _) => SOME "L"
 169             | (EVar "chain", _) => SOME "C"
 170             | (EVar "nosubreq", _) => SOME "NS"
 171             | (EVar "nocase", _) => SOME "NC"
 172             | (EVar "qsappend", _) => SOME "QSA"
 173             | (EVar "noescape", _) => SOME "NE"
 174             | (EVar "passthrough", _) => SOME "PT"
 175             | (EApp ((EVar "mimeType", _), e), _) =>
 176               Option.map (fn s => "T=" ^ s) (Env.string e)
 177             | (EApp ((EVar "redirectWith", _), e), _) =>
 178               Option.map (fn s => "R=" ^ s) (redirect_code e)
 179             | (EApp ((EVar "skip", _), e), _) =>
 180               Option.map (fn n => "S=" ^ Int.toString n) (Env.int e)
 181             | (EApp ((EApp ((EVar "env", _), e1), _), e2), _) =>
 182               (case Env.string e1 of
 183                    NONE => NONE
 184                  | SOME s1 => Option.map (fn s2 => "E=" ^ s1 ^ ":" ^ s2)
 185                                          (Env.string e2))
 186
 187             | _ => NONE
 188
 189 val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC"
 190             | (EVar "ornext", _) => SOME "OR"
 191             | _ => NONE
 192
 193 val apache_option = fn (EVar "execCGI", _) => SOME "ExecCGI"
 194                      | (EVar "includesNOEXEC", _) => SOME "IncludesNOEXEC"
 195                      | (EVar "indexes", _) => SOME "Indexes"
 196                      | (EVar "followSymLinks", _) => SOME "FollowSymLinks"
 197                      | (EVar "multiViews", _) => SOME "MultiViews"
 198                      | _ => NONE
 199
 200 val autoindex_width = fn (EVar "autofit", _) => SOME "*"
 201                        | (EApp ((EVar "characters", _), n), _) =>
 202                          Option.map Int.toString (Env.int n)
 203                        | _ => NONE
 204
 205 val autoindex_option = fn (EApp ((EVar "descriptionWidth", _), w), _) =>
 206                           Option.map (fn w => ("DescriptionWidth", SOME w))
 207                           (autoindex_width w)
 208                         | (EVar "fancyIndexing", _) => SOME ("FancyIndexing", NONE)
 209                         | (EVar "foldersFirst", _) => SOME ("FoldersFirst", NONE)
 210                         | (EVar "htmlTable", _) => SOME ("HTMLTable", NONE)
 211                         | (EVar "iconsAreLinks", _) => SOME ("IconsAreLinks", NONE)
 212                         | (EApp ((EVar "iconHeight", _), n), _) =>
 213                           Option.map (fn w => ("IconHeight", SOME (Int.toString w)))
 214                                      (Env.int n)
 215                         | (EApp ((EVar "iconWidth", _), n), _) =>
 216                           Option.map (fn w => ("IconWidth", SOME (Int.toString w)))
 217                                      (Env.int n)
 218                         | (EVar "ignoreCase", _) => SOME ("IgnoreCase", NONE)
 219                         | (EVar "ignoreClient", _) => SOME ("IgnoreClient", NONE)
 220                         | (EApp ((EVar "nameWidth", _), w), _) =>
 221                           Option.map (fn w => ("NameWidth", SOME w))
 222                                      (autoindex_width w)
 223                         | (EVar "scanHtmlTitles", _) => SOME ("ScanHTMLTitles", NONE)
 224                         | (EVar "suppressColumnSorting", _) => SOME ("SuppressColumnSorting", NONE)
 225                         | (EVar "suppressDescription", _) => SOME ("SuppressDescription", NONE)
 226                         | (EVar "suppressHtmlPreamble", _) => SOME ("SuppressHTMLPreamble", NONE)
 227                         | (EVar "suppressIcon", _) => SOME ("SuppressIcon", NONE)
 228                         | (EVar "suppressLastModified", _) => SOME ("SuppressLastModified", NONE)
 229                         | (EVar "suppressRules", _) => SOME ("SuppressRules", NONE)
 230                         | (EVar "suppressSize", _) => SOME ("SuppressSize", NONE)
 231                         | (EVar "trackModified", _) => SOME ("TrackModified", NONE)
 232                         | (EVar "versionSort", _) => SOME ("VersionSort", NONE)
 233                         | (EVar "xhtml", _) => SOME ("XHTML", NONE)
 234
 235                         | _ => NONE
 236
 237 val interval_base = fn (EVar "access", _) => SOME "access"
 238                      | (EVar "modification", _) => SOME "modification"
 239                      | _ => NONE
 240
 241 val interval = fn (EVar "years", _) => SOME "years"
 242                 | (EVar "months", _) => SOME "months"
 243                 | (EVar "weeks", _) => SOME "weeks"
 244                 | (EVar "days", _) => SOME "days"
 245                 | (EVar "hours", _) => SOME "hours"
 246                 | (EVar "minutes", _) => SOME "minutes"
 247                 | (EVar "seconds", _) => SOME "seconds"
 248                 | _ => NONE
 249
 250 val vhostsChanged = ref false
 251 val logDeleted = ref false
 252 val delayedLogMoves = ref (fn () => ())
 253
 254 val () = Slave.registerPreHandler
 255              (fn () => (vhostsChanged := false;
 256                         logDeleted := false;
 257                         delayedLogMoves := (fn () => print "Executing delayed log moves/deletes.\n")))
 258
 259 fun findVhostUser fname =
 260     let
 261         val inf = TextIO.openIn fname
 262
 263         fun loop () =
 264             case TextIO.inputLine inf of
 265                 NONE => NONE
 266               | SOME line =>
 267                 if String.isPrefix "# Owner: " line then
 268                     case String.tokens Char.isSpace line of
 269                         [_, _, user] => SOME user
 270                       | _ => NONE
 271                 else
 272                     loop ()
 273     in
 274         loop ()
 275         before TextIO.closeIn inf
 276     end handle _ => NONE
 277
 278 val webNodes_full = Config.Apache.webNodes_all @ Config.Apache.webNodes_admin
 279
 280 fun isVersion1 node =
 281     List.exists (fn (n, {version = ConfigTypes.APACHE_1_3, ...}) => n = node
 282                   | _ => false) webNodes_full
 283
 284 fun imVersion1 () = isVersion1 (Slave.hostname ())
 285
 286 fun isWaklog node =
 287     List.exists (fn (n, {auth = ConfigTypes.MOD_WAKLOG, ...}) => n = node
 288                   | _ => false) webNodes_full
 289
 290 fun down () = if imVersion1 () then Config.Apache.down1 else Config.Apache.down
 291 fun undown () = if imVersion1 () then Config.Apache.undown1 else Config.Apache.undown
 292 fun reload () = if imVersion1 () then Config.Apache.reload1 else Config.Apache.reload
 293 fun fixperms () = if imVersion1 () then Config.Apache.fixperms1 else Config.Apache.fixperms
 294
 295 fun logDir {user, node, vhostId} =
 296     String.concat [Config.Apache.logDirOf (isVersion1 node) user,
 297                    "/",
 298                    node,
 299                    "/",
 300                    vhostId]
 301
 302 fun realLogDir {user, node, vhostId} =
 303     String.concat [Config.Apache.realLogDirOf user,
 304                    "/",
 305                    node,
 306                    "/",
 307                    vhostId]
 308
 309 val () = Slave.registerFileHandler (fn fs =>
 310                                        let
 311                                            val spl = OS.Path.splitDirFile (#file fs)
 312                                        in
 313                                            if String.isSuffix ".vhost" (#file spl)
 314                                               orelse String.isSuffix ".vhost_ssl" (#file spl) then let
 315                                                    val realVhostFile = OS.Path.joinDirFile
 316                                                                            {dir = Config.Apache.confDir,
 317                                                                             file = #file spl}
 318
 319                                                    val user = findVhostUser (#file fs)
 320                                                    val oldUser = case #action fs of
 321                                                                      Slave.Delete false => user
 322                                                                    | _ => findVhostUser realVhostFile
 323                                                in
 324                                                    if (oldUser = NONE andalso #action fs <> Slave.Add)
 325                                                       orelse (user = NONE andalso not (Slave.isDelete (#action fs))) then
 326                                                        print ("Can't find user in " ^ #file fs ^ " or " ^ realVhostFile ^ "!  Taking no action.\n")
 327                                                    else
 328                                                        let
 329                                                            val vhostId = if OS.Path.ext (#file spl) = SOME "vhost_ssl" then
 330                                                                              OS.Path.base (#file spl) ^ ".ssl"
 331                                                                          else
 332                                                                              OS.Path.base (#file spl)
 333
 334                                                            fun realLogDir user =
 335                                                                logDir {user = valOf user,
 336                                                                        node = Slave.hostname (),
 337                                                                        vhostId = vhostId}
 338
 339                                                            fun backupLogs () =
 340                                                                OS.Path.joinDirFile
 341                                                                    {dir = Config.Apache.backupLogDirOf
 342                                                                               (isVersion1 (Slave.hostname ())),
 343                                                                     file = vhostId}
 344                                                        in
 345                                                            vhostsChanged := true;
 346                                                            case #action fs of
 347                                                                Slave.Delete _ =>
 348                                                                let
 349                                                                    val ldir = realLogDir oldUser
 350                                                                    val dlm = !delayedLogMoves
 351                                                                in
 352                                                                    if !logDeleted then
 353                                                                        ()
 354                                                                    else
 355                                                                        ((*ignore (OS.Process.system (down ()));*)
 356                                                                         ignore (OS.Process.system (fixperms ()));
 357                                                                         logDeleted := true);
 358                                                                    ignore (OS.Process.system (Config.rm
 359                                                                                               ^ " -rf "
 360                                                                                               ^ realVhostFile));
 361                                                                    delayedLogMoves := (fn () => (dlm ();
 362                                                                                                  Slave.moveDirCreate {from = ldir,
 363                                                                                                                       to = backupLogs ()}))
 364                                                                end
 365                                                              | Slave.Add =>
 366                                                                let
 367                                                                    val rld = realLogDir user
 368                                                                in
 369                                                                    ignore (OS.Process.system (Config.cp
 370                                                                                               ^ " "
 371                                                                                               ^ #file fs
 372                                                                                               ^ " "
 373                                                                                               ^ realVhostFile));
 374                                                                    if Posix.FileSys.access (rld, []) then
 375                                                                        ()
 376                                                                    else
 377                                                                        Slave.moveDirCreate {from = backupLogs (),
 378                                                                                             to = rld}
 379                                                                end
 380
 381                                                              | _ =>
 382                                                                (ignore (OS.Process.system (Config.cp
 383                                                                                            ^ " "
 384                                                                                            ^ #file fs
 385                                                                                            ^ " "
 386                                                                                            ^ realVhostFile));
 387                                                                 if user <> oldUser then
 388                                                                     let
 389                                                                         val old = realLogDir oldUser
 390                                                                         val rld = realLogDir user
 391
 392                                                                         val dlm = !delayedLogMoves
 393                                                                     in
 394                                                                         if !logDeleted then
 395                                                                             ()
 396                                                                         else
 397                                                                             ((*ignore (OS.Process.system (down ()));*)
 398                                                                              logDeleted := true);
 399                                                                         delayedLogMoves := (fn () => (dlm ();
 400                                                                                                       ignore (OS.Process.system (Config.rm
 401                                                                                                                                  ^ " -rf "
 402                                                                                                                                  ^ realLogDir oldUser))));
 403                                                                         if Posix.FileSys.access (rld, []) then
 404                                                                             ()
 405                                                                         else
 406                                                                             Slave.mkDirAll rld
 407                                                                     end
 408                                                                 else
 409                                                                     ())
 410                                                        end
 411                                                end
 412                                            else
 413                                                ()
 414                                        end)
 415
 416 val () = Slave.registerPostHandler
 417          (fn () =>
 418              (if !vhostsChanged then
 419                   (Slave.shellF ([reload ()],
 420                               fn cl => "Error reloading Apache with " ^ cl);
 421                    if !logDeleted then !delayedLogMoves () else ())
 422               else
 423                   ()))
 424
 425 val vhostFiles : (string * TextIO.outstream) list ref = ref []
 426 fun write' s = app (fn (node, file) => TextIO.output (file, s node)) (!vhostFiles)
 427 fun write s = app (fn (_, file) => TextIO.output (file, s)) (!vhostFiles)
 428
 429 val rewriteEnabled = ref false
 430 val localRewriteEnabled = ref false
 431 val expiresEnabled = ref false
 432 val localExpiresEnabled = ref false
 433 val currentVhost = ref ""
 434 val currentVhostId = ref ""
 435 val sslEnabled = ref false
 436
 437 val pre = ref (fn _ : {user : string, nodes : string list, id : string, hostname : string} => ())
 438 fun registerPre f =
 439     let
 440         val old = !pre
 441     in
 442         pre := (fn x => (old x; f x))
 443     end
 444
 445 val post = ref (fn () => ())
 446 fun registerPost f =
 447     let
 448         val old = !post
 449     in
 450         post := (fn () => (old (); f ()))
 451     end
 452
 453 fun doPre x = !pre x
 454 fun doPost () = !post ()
 455
 456 val aliaser = ref (fn _ : string => ())
 457 fun registerAliaser f =
 458     let
 459         val old = !aliaser
 460     in
 461         aliaser := (fn x => (old x; f x))
 462     end
 463
 464 fun vhostPost () = (!post ();
 465                     write "</VirtualHost>\n";
 466                     app (TextIO.closeOut o #2) (!vhostFiles))
 467
 468 val php_version = fn (EVar "php5", _) => SOME 5
 469                    | _ => NONE
 470
 471 fun vhostBody (env, makeFullHost) =
 472     let
 473         val places = Env.env (Env.list webPlace) (env, "WebPlaces")
 474
 475         val ssl = Env.env ssl (env, "SSL")
 476         val user = Env.env Env.string (env, "User")
 477         val group = Env.env Env.string (env, "Group")
 478         val docroot = Env.env Env.string (env, "DocumentRoot")
 479         val sadmin = Env.env Env.string (env, "ServerAdmin")
 480         val suexec = Env.env Env.bool (env, "SuExec")
 481         val php = Env.env php_version (env, "PhpVersion")
 482
 483         val fullHost = makeFullHost (Domain.currentDomain ())
 484         val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
 485         val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
 486     in
 487         currentVhost := fullHost;
 488         currentVhostId := vhostId;
 489         sslEnabled := Option.isSome ssl;
 490
 491         rewriteEnabled := false;
 492         localRewriteEnabled := false;
 493         expiresEnabled := false;
 494         localExpiresEnabled := false;
 495         vhostFiles := map (fn (node, ip) =>
 496                               let
 497                                   val file = Domain.domainFile {node = node,
 498                                                                 name = confFile}
 499
 500                                   val ld = logDir {user = user, node = node, vhostId = vhostId}
 501                               in
 502                                   TextIO.output (file, "# Owner: ");
 503                                   TextIO.output (file, user);
 504                                   TextIO.output (file, "\n<VirtualHost ");
 505                                   TextIO.output (file, ip);
 506                                   TextIO.output (file, ":");
 507                                   TextIO.output (file, case ssl of
 508                                                            SOME _ => "443"
 509                                                          | NONE => "80");
 510                                   TextIO.output (file, ">\n");
 511                                   TextIO.output (file, "\tErrorLog ");
 512                                   TextIO.output (file, ld);
 513                                   TextIO.output (file, "/error.log\n\tCustomLog ");
 514                                   TextIO.output (file, ld);
 515                                   TextIO.output (file, "/access.log combined\n");
 516                                   TextIO.output (file, "\tServerName ");
 517                                   TextIO.output (file, fullHost);
 518                                   app
 519                                       (fn dom => (TextIO.output (file, "\n\tServerAlias ");
 520                                                   TextIO.output (file, makeFullHost dom)))
 521                                       (Domain.currentAliasDomains ());
 522
 523                                   if suexec then
 524                                       if isVersion1 node then
 525                                           (TextIO.output (file, "\n\tUser ");
 526                                            TextIO.output (file, user);
 527                                            TextIO.output (file, "\n\tGroup ");
 528                                            TextIO.output (file, group))
 529                                       else
 530                                           (TextIO.output (file, "\n\tSuexecUserGroup ");
 531                                            TextIO.output (file, user);
 532                                            TextIO.output (file, " ");
 533                                            TextIO.output (file, group);
 534                                            TextIO.output (file, "\n\tsuPHP_UserGroup ");
 535                                            TextIO.output (file, user);
 536                                            TextIO.output (file, " ");
 537                                            TextIO.output (file, group))
 538                                   else
 539                                       ();
 540
 541                                   if isWaklog node then
 542                                       (TextIO.output (file, "\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
 543                                        TextIO.output (file, user);
 544                                        TextIO.output (file, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
 545                                        TextIO.output (file, user))
 546                                   else
 547                                       ();
 548
 549                                   TextIO.output (file, "\n\tDAVLockDB /var/lock/apache2/dav/");
 550                                   TextIO.output (file, user);
 551                                   TextIO.output (file, "/DAVLock");
 552
 553                                   if php <> Config.Apache.defaultPhpVersion then
 554                                       (TextIO.output (file, "\n\tAddHandler x-httpd-php");
 555                                        TextIO.output (file, Int.toString php);
 556                                        TextIO.output (file, " .php .phtml"))
 557                                   else
 558                                       ();
 559
 560                                   (ld, file)
 561                               end)
 562                           places;
 563         write "\n\tDocumentRoot ";
 564         write docroot;
 565         write "\n\tServerAdmin ";
 566         write sadmin;
 567         case ssl of
 568             SOME cert =>
 569             (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
 570              write cert)
 571           | NONE => ();
 572         write "\n";
 573         !pre {user = user, nodes = map #1 places, id = vhostId, hostname = fullHost};
 574         app (fn dom => !aliaser (makeFullHost dom)) (Domain.currentAliasDomains ())
 575     end
 576
 577 val () = Env.containerV_one "vhost"
 578          ("host", Env.string)
 579          (fn (env, host) => vhostBody (env, fn dom => host ^ "." ^ dom),
 580           vhostPost)
 581
 582 val () = Env.containerV_none "vhostDefault"
 583          (fn env => vhostBody (env, fn dom => dom),
 584           vhostPost)
 585
 586 val inLocal = ref false
 587
 588 val () = Env.container_one "location"
 589          ("prefix", Env.string)
 590          (fn prefix =>
 591              (write "\t<Location ";
 592               write prefix;
 593               write ">\n";
 594               inLocal := true),
 595           fn () => (write "\t</Location>\n";
 596                     inLocal := false;
 597                     localRewriteEnabled := false;
 598                     localExpiresEnabled := false))
 599
 600 val () = Env.container_one "directory"
 601          ("directory", Env.string)
 602          (fn directory =>
 603              (write "\t<Directory ";
 604               write directory;
 605               write ">\n";
 606               inLocal := true),
 607           fn () => (write "\t</Directory>\n";
 608                     inLocal := false;
 609                     localRewriteEnabled := false;
 610                     localExpiresEnabled := false))
 611
 612 val () = Env.container_one "filesMatch"
 613          ("regexp", Env.string)
 614          (fn prefix =>
 615              (write "\t<FilesMatch \"";
 616               write prefix;
 617               write "\">\n"),
 618           fn () => (write "\t</FilesMatch>\n";
 619                     localRewriteEnabled := false;
 620                     localExpiresEnabled := false))
 621
 622 fun checkRewrite () =
 623     if !inLocal then
 624         if !localRewriteEnabled then
 625             ()
 626         else
 627             (write "\tRewriteEngine on\n";
 628              localRewriteEnabled := true)
 629     else if !rewriteEnabled then
 630         ()
 631     else
 632         (write "\tRewriteEngine on\n";
 633          rewriteEnabled := true)
 634
 635 fun checkExpires () =
 636     if !inLocal then
 637         if !localExpiresEnabled then
 638             ()
 639         else
 640             (write "\tExpiresActive on\n";
 641              localExpiresEnabled := true)
 642     else if !expiresEnabled then
 643         ()
 644     else
 645         (write "\tExpiresActive on\n";
 646          expiresEnabled := true)
 647
 648 val () = Env.action_three "localProxyRewrite"
 649          ("from", Env.string, "to", Env.string, "port", Env.int)
 650          (fn (from, to, port) =>
 651              (checkRewrite ();
 652               write "\tRewriteRule\t\"";
 653               write from;
 654               write "\"\thttp://localhost:";
 655               write (Int.toString port);
 656               write "/";
 657               write to;
 658               write " [P]\n"))
 659
 660 val () = Env.action_four "expiresByType"
 661          ("mime", Env.string, "base", interval_base, "num", Env.int, "inter", interval)
 662          (fn (mime, base, num, inter) =>
 663              (checkExpires ();
 664               write "\tExpiresByType\t\"";
 665               write mime;
 666               write "\"\t\"";
 667               write base;
 668               write " plus ";
 669               if num < 0 then
 670                   (write "-";
 671                    write (Int.toString (~num)))
 672               else
 673                   write (Int.toString num);
 674               write " ";
 675               write inter;
 676               write "\"\n"))
 677
 678 val () = Env.action_two "proxyPass"
 679          ("from", Env.string, "to", Env.string)
 680          (fn (from, to) =>
 681                  (write "\tProxyPass\t";
 682                   write from;
 683                   write "\t";
 684                   write to;
 685                   write "\n"))
 686
 687 val () = Env.action_two "proxyPassReverse"
 688          ("from", Env.string, "to", Env.string)
 689          (fn (from, to) =>
 690                  (write "\tProxyPassReverse\t";
 691                   write from;
 692                   write "\t";
 693                   write to;
 694                   write "\n"))
 695
 696 val () = Env.action_three "rewriteRule"
 697          ("from", Env.string, "to", Env.string, "flags", Env.list flag)
 698          (fn (from, to, flags) =>
 699              (checkRewrite ();
 700               write "\tRewriteRule\t\"";
 701               write from;
 702               write "\"\t\"";
 703               write to;
 704               write "\"";
 705               case flags of
 706                   [] => ()
 707                 | flag::rest => (write " [";
 708                                  write flag;
 709                                  app (fn flag => (write ",";
 710                                                   write flag)) rest;
 711                                  write "]");
 712               write "\n"))
 713
 714 val () = Env.action_three "rewriteCond"
 715          ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
 716          (fn (from, to, flags) =>
 717              (checkRewrite ();
 718               write "\tRewriteCond\t\"";
 719               write from;
 720               write "\"\t\"";
 721               write to;
 722               write "\"";
 723               case flags of
 724                   [] => ()
 725                 | flag::rest => (write " [";
 726                                  write flag;
 727                                  app (fn flag => (write ",";
 728                                                   write flag)) rest;
 729                                  write "]");
 730               write "\n"))
 731
 732 val () = Env.action_one "rewriteBase"
 733          ("prefix", Env.string)
 734          (fn prefix =>
 735              (checkRewrite ();
 736               write "\tRewriteBase\t\"";
 737               write prefix;
 738               write "\"\n"))
 739
 740 val () = Env.action_one "rewriteLogLevel"
 741          ("level", Env.int)
 742          (fn level =>
 743              (checkRewrite ();
 744               write "\tRewriteLog ";
 745               write' (fn x => x);
 746               write "/rewrite.log\n\tRewriteLogLevel ";
 747               write (Int.toString level);
 748               write "\n"))
 749
 750 val () = Env.action_two "alias"
 751          ("from", Env.string, "to", Env.string)
 752          (fn (from, to) =>
 753              (write "\tAlias\t";
 754               write from;
 755               write " ";
 756               write to;
 757               write "\n"))
 758
 759 val () = Env.action_two "scriptAlias"
 760          ("from", Env.string, "to", Env.string)
 761          (fn (from, to) =>
 762              (write "\tScriptAlias\t";
 763               write from;
 764               write " ";
 765               write to;
 766               write "\n"))
 767
 768 val () = Env.action_two "errorDocument"
 769          ("code", Env.string, "handler", Env.string)
 770          (fn (code, handler) =>
 771              let
 772                  val hasSpaces = CharVector.exists Char.isSpace handler
 773
 774                  fun maybeQuote () =
 775                      if hasSpaces then
 776                          write "\""
 777                      else
 778                          ()
 779              in
 780                  write "\tErrorDocument\t";
 781                  write code;
 782                  write " ";
 783                  maybeQuote ();
 784                  write handler;
 785                  maybeQuote ();
 786                  write "\n"
 787              end)
 788
 789 val () = Env.action_one "options"
 790          ("options", Env.list apache_option)
 791          (fn opts =>
 792              case opts of
 793                  [] => ()
 794                | _ => (write "\tOptions";
 795                        app (fn opt => (write " "; write opt)) opts;
 796                        write "\n"))
 797
 798 val () = Env.action_one "set_options"
 799          ("options", Env.list apache_option)
 800          (fn opts =>
 801              case opts of
 802                  [] => ()
 803                | _ => (write "\tOptions";
 804                        app (fn opt => (write " +"; write opt)) opts;
 805                        write "\n"))
 806
 807 val () = Env.action_one "unset_options"
 808          ("options", Env.list apache_option)
 809          (fn opts =>
 810              case opts of
 811                  [] => ()
 812                | _ => (write "\tOptions";
 813                        app (fn opt => (write " -"; write opt)) opts;
 814                        write "\n"))
 815
 816 val () = Env.action_one "cgiExtension"
 817          ("extension", Env.string)
 818          (fn ext => (write "\tAddHandler cgi-script ";
 819                      write ext;
 820                      write "\n"))
 821
 822 val () = Env.action_one "directoryIndex"
 823          ("filenames", Env.list Env.string)
 824          (fn opts =>
 825              (write "\tDirectoryIndex";
 826               app (fn opt => (write " "; write opt)) opts;
 827               write "\n"))
 828
 829 val () = Env.action_one "serverAliasHost"
 830          ("host", Env.string)
 831          (fn host =>
 832              (write "\tServerAlias ";
 833               write host;
 834               write "\n";
 835               !aliaser host))
 836
 837 val () = Env.action_one "serverAlias"
 838          ("host", Env.string)
 839          (fn host =>
 840              (app
 841                   (fn dom =>
 842                       let
 843                           val full = host ^ "." ^ dom
 844                       in
 845                           write "\tServerAlias ";
 846                           write full;
 847                           write "\n";
 848                           !aliaser full
 849                       end)
 850                   (Domain.currentDomains ())))
 851
 852 val () = Env.action_none "serverAliasDefault"
 853          (fn () =>
 854              (app
 855                   (fn dom =>
 856                           (write "\tServerAlias ";
 857                            write dom;
 858                            write "\n";
 859                            !aliaser dom))
 860                   (Domain.currentDomains ())))
 861
 862 val authType = fn (EVar "basic", _) => SOME "basic"
 863                 | (EVar "digest", _) => SOME "digest"
 864                 | (EVar "kerberos", _) => SOME "kerberos"
 865                 | _ => NONE
 866
 867 fun allowAuthType "kerberos" = !sslEnabled
 868   | allowAuthType _ = true
 869
 870 val () = Env.action_one "authType"
 871          ("type", authType)
 872          (fn ty =>
 873              if allowAuthType ty then
 874                  (write "\tAuthType ";
 875                   write ty;
 876                   write "\n";
 877                   case ty of
 878                       "kerberos" =>
 879                       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"
 880                     | _ => ())
 881              else
 882                  print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 883
 884 val () = Env.action_one "authName"
 885          ("name", Env.string)
 886          (fn name =>
 887              (write "\tAuthName \"";
 888               write name;
 889               write "\"\n"))
 890
 891 val () = Env.action_one "authUserFile"
 892          ("file", Env.string)
 893          (fn name =>
 894              (write "\tAuthUserFile ";
 895               write name;
 896               write "\n"))
 897
 898 val () = Env.action_one "authGroupFile"
 899          ("file", Env.string)
 900          (fn name =>
 901              (write "\tAuthGroupFile ";
 902               write name;
 903               write "\n"))
 904
 905 val () = Env.action_none "requireValidUser"
 906          (fn () => write "\tRequire valid-user\n")
 907
 908 val () = Env.action_one "requireUser"
 909          ("users", Env.list Env.string)
 910          (fn names =>
 911              case names of
 912                  [] => ()
 913                | _ => (write "\tRequire user";
 914                        app (fn name => (write " "; write name)) names;
 915                        write "\n"))
 916
 917 val () = Env.action_one "requireGroup"
 918          ("groups", Env.list Env.string)
 919          (fn names =>
 920              case names of
 921                  [] => ()
 922                | _ => (write "\tRequire group";
 923                        app (fn name => (write " "; write name)) names;
 924                        write "\n"))
 925
 926 val () = Env.action_none "orderAllowDeny"
 927          (fn () => write "\tOrder allow,deny\n")
 928
 929 val () = Env.action_none "orderDenyAllow"
 930          (fn () => write "\tOrder deny,allow\n")
 931
 932 val () = Env.action_none "allowFromAll"
 933          (fn () => write "\tAllow from all\n")
 934
 935 val () = Env.action_one "allowFrom"
 936          ("entries", Env.list Env.string)
 937          (fn names =>
 938              case names of
 939                  [] => ()
 940                | _ => (write "\tAllow from";
 941                        app (fn name => (write " "; write name)) names;
 942                        write "\n"))
 943
 944 val () = Env.action_none "denyFromAll"
 945          (fn () => write "\tDeny from all\n")
 946
 947 val () = Env.action_one "denyFrom"
 948          ("entries", Env.list Env.string)
 949          (fn names =>
 950              case names of
 951                  [] => ()
 952                | _ => (write "\tDeny from";
 953                        app (fn name => (write " "; write name)) names;
 954                        write "\n"))
 955
 956 val () = Env.action_none "satisfyAll"
 957          (fn () => write "\tSatisfy all\n")
 958
 959 val () = Env.action_none "satisfyAny"
 960          (fn () => write "\tSatisfy any\n")
 961
 962 val () = Env.action_one "forceType"
 963          ("type", Env.string)
 964          (fn ty => (write "\tForceType ";
 965                     write ty;
 966                     write "\n"))
 967
 968 val () = Env.action_none "forceTypeOff"
 969          (fn () => write "\tForceType None\n")
 970
 971 val () = Env.action_two "action"
 972          ("what", Env.string, "how", Env.string)
 973          (fn (what, how) => (write "\tAction ";
 974                              write what;
 975                              write " ";
 976                              write how;
 977                              write "\n"))
 978
 979 val () = Env.action_one "addDefaultCharset"
 980          ("charset", Env.string)
 981          (fn ty => (write "\tAddDefaultCharset ";
 982                     write ty;
 983                     write "\n"))
 984
 985 (*val () = Env.action_one "davSvn"
 986          ("path", Env.string)
 987          (fn path => (write "\tDAV svn\n\tSVNPath ";
 988                       write path;
 989                       write "\n"))
 990
 991 val () = Env.action_one "authzSvnAccessFile"
 992          ("path", Env.string)
 993          (fn path => (write "\tAuthzSVNAccessFile ";
 994                       write path;
 995                       write "\n"))*)
 996
 997 val () = Env.action_none "davFilesystem"
 998          (fn path => write "\tDAV filesystem\n")
 999
1000 val () = Env.action_two "addDescription"
1001          ("description", Env.string, "patterns", Env.list Env.string)
1002          (fn (desc, pats) =>
1003              case pats of
1004                  [] => ()
1005                | _ => (write "\tAddDescription \"";
1006                        write (String.toString desc);
1007                        write "\"";
1008                        app (fn pat => (write " "; write pat)) pats;
1009                        write "\n"))
1010
1011 val () = Env.action_two "addIcon"
1012          ("icon", Env.string, "patterns", Env.list Env.string)
1013          (fn (icon, pats) =>
1014              case pats of
1015                  [] => ()
1016                | _ => (write "\tAddIcon \"";
1017                        write icon;
1018                        write "\"";
1019                        app (fn pat => (write " "; write pat)) pats;
1020                        write "\n"))
1021
1022 val () = Env.action_one "indexOptions"
1023          ("options", Env.list autoindex_option)
1024          (fn opts =>
1025              case opts of
1026                  [] => ()
1027                | _ => (write "\tIndexOptions";
1028                        app (fn (opt, arg) =>
1029                                (write " ";
1030                                 write opt;
1031                                 Option.app (fn arg =>
1032                                                (write "="; write arg)) arg)) opts;
1033                        write "\n"))
1034
1035 val () = Env.action_one "indexIgnore"
1036          ("patterns", Env.list Env.string)
1037          (fn pats =>
1038              case pats of
1039                  [] => ()
1040                | _ => (write "\tIndexIgnore";
1041                        app (fn pat => (write " "; write pat)) pats;
1042                        write "\n"))
1043
1044 val () = Env.action_one "set_indexOptions"
1045          ("options", Env.list autoindex_option)
1046          (fn opts =>
1047              case opts of
1048                  [] => ()
1049                | _ => (write "\tIndexOptions";
1050                        app (fn (opt, arg) =>
1051                                (write " +";
1052                                 write opt;
1053                                 Option.app (fn arg =>
1054                                                (write "="; write arg)) arg)) opts;
1055                        write "\n"))
1056
1057 val () = Env.action_one "unset_indexOptions"
1058          ("options", Env.list autoindex_option)
1059          (fn opts =>
1060              case opts of
1061                  [] => ()
1062                | _ => (write "\tIndexOptions";
1063                        app (fn (opt, _) =>
1064                                (write " -";
1065                                 write opt)) opts;
1066                        write "\n"))
1067
1068 val () = Env.action_one "headerName"
1069          ("name", Env.string)
1070          (fn name => (write "\tHeaderName ";
1071                       write name;
1072                       write "\n"))
1073
1074 val () = Env.action_one "readmeName"
1075          ("name", Env.string)
1076          (fn name => (write "\tReadmeName ";
1077                       write name;
1078                       write "\n"))
1079
1080 val () = Env.action_two "setEnv"
1081          ("key", Env.string, "value", Env.string)
1082          (fn (key, value) => (write "\tSetEnv \"";
1083                               write key;
1084                               write "\" \"";
1085                               write (String.translate (fn #"\"" => "\\\""
1086                                                         | ch => str ch) value);
1087                               write "\"\n"))
1088
1089 val () = Env.action_one "diskCache"
1090          ("path", Env.string)
1091          (fn path => (write "\tCacheEnable disk \"";
1092                       write path;
1093                       write "\"\n"))
1094
1095 val () = Env.action_one "phpVersion"
1096          ("version", php_version)
1097          (fn version => (write "\tAddHandler x-httpd-php";
1098                          write (Int.toString version);
1099                          write " .php .phtml\n"))
1100
1101 val () = Env.action_two "addType"
1102          ("mime type", Env.string, "extension", Env.string)
1103          (fn (mt, ext) => (write "\tAddType ";
1104                            write mt;
1105                            write " ";
1106                            write ext;
1107                            write "\n"))
1108
1109 val filter = fn (EVar "includes", _) => SOME "INCLUDES"
1110               | (EVar "deflate", _) => SOME "DEFLATE"
1111               | _ => NONE
1112
1113 val () = Env.action_two "addOutputFilter"
1114          ("filters", Env.list filter, "extensions", Env.list Env.string)
1115          (fn (f :: fs, exts as (_ :: _)) =>
1116              (write "\tAddOutputFilter ";
1117               write f;
1118               app (fn f => (write ";"; write f)) fs;
1119               app (fn ext => (write " "; write ext)) exts;
1120               write "\n")
1121            | _ => ())
1122
1123 val () = Env.action_one "sslCertificateChainFile"
1124          ("ssl_cacert_path", Env.string)
1125          (fn cacert =>
1126              if !sslEnabled then
1127                  (write "\tSSLCertificateChainFile \"";
1128                   write cacert;
1129                   write "\"\n")
1130              else
1131                  print "WARNING: Skipped sslCertificateChainFile because this isn't an SSL vhost.\n")
1132
1133 val () = Domain.registerResetLocal (fn () =>
1134                                        ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.Apache.confDir ^ "/*")))
1135
1136 val () = Domain.registerDescriber (Domain.considerAll
1137                                    [Domain.Extension {extension = "vhost",
1138                                                       heading = fn host => "Web vhost " ^ host ^ ":"},
1139                                     Domain.Extension {extension = "vhost_ssl",
1140                                                       heading = fn host => "SSL web vhost " ^ host ^ ":"}])
1141
1142 val () = Env.action_none "testNoHtaccess"
1143          (fn path => write "\tAllowOverride None\n")
1144
1145 fun writeWaklogUserFile () =
1146     let
1147         val users = Acl.users ()
1148         val outf = TextIO.openOut Config.Apache.waklogUserFile
1149     in
1150         app (fn user => if String.isSuffix "_admin" user then
1151                             ()
1152                         else
1153                             (TextIO.output (outf, "<Location /~");
1154                              TextIO.output (outf, user);
1155                              TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
1156                              TextIO.output (outf, user);
1157                              TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
1158                              TextIO.output (outf, user);
1159                              TextIO.output (outf, "\n</Location>\n\n"))) users;
1160         TextIO.closeOut outf
1161     end
1162
1163 val () = Domain.registerOnUsersChange writeWaklogUserFile
1164
1165 end