src/plugins/apache.sml

   1 (* HCoop Domtool (http://hcoop.sourceforge.net/)
   2  * Copyright (c) 2006-2009, Adam Chlipala
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17  *)
  18
  19 (* Apache HTTPD handling *)
  20
  21 structure Apache :> APACHE = struct
  22
  23 open Ast
  24
  25 val dl = ErrorMsg.dummyLoc
  26
  27 fun webNode node =
  28     List.exists (fn (x, _) => x = node) Config.Apache.webNodes_all
  29     orelse (Domain.hasPriv "www"
  30             andalso List.exists (fn (x, _) => x = node) Config.Apache.webNodes_admin)
  31
  32 val _ = Env.type_one "web_node"
  33         Env.string
  34         webNode
  35
  36 val _ = Env.registerFunction ("web_node_to_node",
  37                               fn [e] => SOME e
  38                                | _ => NONE)
  39
  40 fun webPlace (EApp ((EVar "web_place_default", _), (EString node, _)), _) =
  41     SOME (node, Domain.nodeIp node)
  42   | webPlace (EApp ((EApp ((EVar "web_place", _), (EString node, _)), _), (EString ip, _)), _) =
  43     SOME (node, ip)
  44   | webPlace _ = NONE
  45
  46 fun webPlaceDefault node = (EApp ((EVar "web_place_default", dl), (EString node, dl)), dl)
  47
  48 val _ = Env.registerFunction ("web_place_to_web_node",
  49                               fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
  50                                | _ => NONE)
  51
  52 val _ = Env.registerFunction ("web_place_to_node",
  53                               fn [e] => Option.map (fn (node, _) => (EString node, dl)) (webPlace e)
  54                                | _ => NONE)
  55
  56 val _ = Env.registerFunction ("web_place_to_ip",
  57                               fn [e] => Option.map (fn (_, ip) => (EString ip, dl)) (webPlace e)
  58                                | _ => NONE)
  59
  60 val _ = Env.type_one "proxy_port"
  61         Env.int
  62         (fn n => n > 1024)
  63
  64 val _ = Env.type_one "proxy_target"
  65         Env.string
  66         (fn s =>
  67             let
  68                 fun default () = List.exists (fn s' => s = s') Config.Apache.proxyTargets
  69             in
  70                 case String.fields (fn ch => ch = #":") s of
  71                     "http" :: "//localhost" :: rest =>
  72                     let
  73                         val rest = String.concatWith ":" rest
  74                     in
  75                         CharVector.all (fn ch => Char.isPrint ch andalso not (Char.isSpace ch)
  76                                                  andalso ch <> #"\"" andalso ch <> #"'") rest
  77                         andalso case String.fields (fn ch => ch = #"/") rest of
  78                                     port :: _ =>
  79                                     (case Int.fromString port of
  80                                          NONE => default ()
  81                                        | SOME n => n > 1024 orelse default ())
  82                                   | _ => default ()
  83                     end
  84                   | _ => default ()
  85             end)
  86
  87 val _ = Env.type_one "rewrite_arg"
  88         Env.string
  89         (CharVector.all Char.isAlphaNum)
  90
  91 val _ = Env.type_one "suexec_flag"
  92         Env.bool
  93         (fn b => b orelse Domain.hasPriv "www")
  94
  95 val _ = Env.type_one "regexp"
  96         Env.string
  97         Pcre.validRegexp
  98
  99 fun validLocation s =
 100     size s > 0 andalso size s < 1000 andalso CharVector.all
 101                                                  (fn ch => Char.isAlphaNum ch
 102                                                            orelse ch = #"-"
 103                                                            orelse ch = #"_"
 104                                                            orelse ch = #"."
 105                                                            orelse ch = #"/"
 106                                                            orelse ch = #"~") s
 107
 108 val _ = Env.type_one "location"
 109         Env.string
 110         validLocation
 111
 112 fun validCert s = Acl.query {user = Domain.getUser (),
 113                              class = "cert",
 114                              value = s}
 115
 116 val _ = Env.type_one "ssl_cert_path"
 117         Env.string
 118         validCert
 119
 120 fun ssl e = case e of
 121                 (EVar "no_ssl", _) => SOME NONE
 122               | (EApp ((EVar "use_cert", _), s), _) => Option.map SOME (Env.string s)
 123               | _ => NONE
 124
 125 fun validExtension s =
 126     size s > 0
 127     andalso size s < 20
 128     andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"_") s
 129
 130 val _ = Env.type_one "file_extension"
 131         Env.string
 132         validExtension
 133
 134 val defaults = [("WebPlaces",
 135                  (TList (TBase "web_place", dl), dl),
 136                  (fn () => (EList (map webPlaceDefault Config.Apache.webNodes_default), dl))),
 137                 ("SSL",
 138                  (TBase "ssl", dl),
 139                  (fn () => (EVar "no_ssl", dl))),
 140                 ("User",
 141                  (TBase "your_user", dl),
 142                  (fn () => (EString (Domain.getUser ()), dl))),
 143                 ("Group",
 144                  (TBase "your_group", dl),
 145                  (fn () => (EString "nogroup", dl))),
 146                 ("DocumentRoot",
 147                  (TBase "your_path", dl),
 148                  (fn () => (EString (Domain.homedir () ^ "/" ^ Config.Apache.public_html), dl))),
 149                 ("ServerAdmin",
 150                  (TBase "email", dl),
 151                  (fn () => (EString (Domain.getUser () ^ "@" ^ Config.defaultDomain), dl))),
 152                 ("SuExec",
 153                  (TBase "suexec_flag", dl),
 154                  (fn () => (EVar "true", dl))),
 155                 ("PhpVersion",
 156                  (TBase "php_version", dl),
 157                  (fn () => (EVar "php4", dl)))]
 158
 159 val () = app Defaults.registerDefault defaults
 160
 161 val redirect_code = fn (EVar "temp", _) => SOME "temp"
 162                      | (EVar "permanent", _) => SOME "permanent"
 163                      | (EVar "seeother", _) => SOME "seeother"
 164                      | (EVar "redir300", _) => SOME "300"
 165                      | (EVar "redir301", _) => SOME "301"
 166                      | (EVar "redir302", _) => SOME "302"
 167                      | (EVar "redir303", _) => SOME "303"
 168                      | (EVar "redir304", _) => SOME "304"
 169                      | (EVar "redir305", _) => SOME "305"
 170                      | (EVar "redir307", _) => SOME "307"
 171                      | _ => NONE
 172
 173 val flag = fn (EVar "redirect", _) => SOME "R"
 174             | (EVar "forbidden", _) => SOME "F"
 175             | (EVar "gone", _) => SOME "G"
 176             | (EVar "last", _) => SOME "L"
 177             | (EVar "chain", _) => SOME "C"
 178             | (EVar "nosubreq", _) => SOME "NS"
 179             | (EVar "nocase", _) => SOME "NC"
 180             | (EVar "qsappend", _) => SOME "QSA"
 181             | (EVar "noescape", _) => SOME "NE"
 182             | (EVar "passthrough", _) => SOME "PT"
 183             | (EApp ((EVar "mimeType", _), e), _) =>
 184               Option.map (fn s => "T=" ^ s) (Env.string e)
 185             | (EApp ((EVar "redirectWith", _), e), _) =>
 186               Option.map (fn s => "R=" ^ s) (redirect_code e)
 187             | (EApp ((EVar "skip", _), e), _) =>
 188               Option.map (fn n => "S=" ^ Int.toString n) (Env.int e)
 189             | (EApp ((EApp ((EVar "env", _), e1), _), e2), _) =>
 190               (case Env.string e1 of
 191                    NONE => NONE
 192                  | SOME s1 => Option.map (fn s2 => "E=" ^ s1 ^ ":" ^ s2)
 193                                          (Env.string e2))
 194
 195             | _ => NONE
 196
 197 val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC"
 198             | (EVar "ornext", _) => SOME "OR"
 199             | _ => NONE
 200
 201 val apache_option = fn (EVar "execCGI", _) => SOME "ExecCGI"
 202                      | (EVar "includesNOEXEC", _) => SOME "IncludesNOEXEC"
 203                      | (EVar "indexes", _) => SOME "Indexes"
 204                      | (EVar "followSymLinks", _) => SOME "FollowSymLinks"
 205                      | _ => NONE
 206
 207 val autoindex_width = fn (EVar "autofit", _) => SOME "*"
 208                        | (EApp ((EVar "characters", _), n), _) =>
 209                          Option.map Int.toString (Env.int n)
 210                        | _ => NONE
 211
 212 val autoindex_option = fn (EApp ((EVar "descriptionWidth", _), w), _) =>
 213                           Option.map (fn w => ("DescriptionWidth", SOME w))
 214                           (autoindex_width w)
 215                         | (EVar "fancyIndexing", _) => SOME ("FancyIndexing", NONE)
 216                         | (EVar "foldersFirst", _) => SOME ("FoldersFirst", NONE)
 217                         | (EVar "htmlTable", _) => SOME ("HTMLTable", NONE)
 218                         | (EVar "iconsAreLinks", _) => SOME ("IconsAreLinks", NONE)
 219                         | (EApp ((EVar "iconHeight", _), n), _) =>
 220                           Option.map (fn w => ("IconHeight", SOME (Int.toString w)))
 221                                      (Env.int n)
 222                         | (EApp ((EVar "iconWidth", _), n), _) =>
 223                           Option.map (fn w => ("IconWidth", SOME (Int.toString w)))
 224                                      (Env.int n)
 225                         | (EVar "ignoreCase", _) => SOME ("IgnoreCase", NONE)
 226                         | (EVar "ignoreClient", _) => SOME ("IgnoreClient", NONE)
 227                         | (EApp ((EVar "nameWidth", _), w), _) =>
 228                           Option.map (fn w => ("NameWidth", SOME w))
 229                                      (autoindex_width w)
 230                         | (EVar "scanHtmlTitles", _) => SOME ("ScanHTMLTitles", NONE)
 231                         | (EVar "suppressColumnSorting", _) => SOME ("SuppressColumnSorting", NONE)
 232                         | (EVar "suppressDescription", _) => SOME ("SuppressDescription", NONE)
 233                         | (EVar "suppressHtmlPreamble", _) => SOME ("SuppressHTMLPreamble", NONE)
 234                         | (EVar "suppressIcon", _) => SOME ("SuppressIcon", NONE)
 235                         | (EVar "suppressLastModified", _) => SOME ("SuppressLastModified", NONE)
 236                         | (EVar "suppressRules", _) => SOME ("SuppressRules", NONE)
 237                         | (EVar "suppressSize", _) => SOME ("SuppressSize", NONE)
 238                         | (EVar "trackModified", _) => SOME ("TrackModified", NONE)
 239                         | (EVar "versionSort", _) => SOME ("VersionSort", NONE)
 240                         | (EVar "xhtml", _) => SOME ("XHTML", NONE)
 241
 242                         | _ => NONE
 243
 244 val interval_base = fn (EVar "access", _) => SOME "access"
 245                      | (EVar "modification", _) => SOME "modification"
 246                      | _ => NONE
 247
 248 val interval = fn (EVar "years", _) => SOME "years"
 249                 | (EVar "months", _) => SOME "months"
 250                 | (EVar "weeks", _) => SOME "weeks"
 251                 | (EVar "days", _) => SOME "days"
 252                 | (EVar "hours", _) => SOME "hours"
 253                 | (EVar "minutes", _) => SOME "minutes"
 254                 | (EVar "seconds", _) => SOME "seconds"
 255                 | _ => NONE
 256
 257 val vhostsChanged = ref false
 258 val logDeleted = ref false
 259 val delayedLogMoves = ref (fn () => ())
 260
 261 val () = Slave.registerPreHandler
 262              (fn () => (vhostsChanged := false;
 263                         logDeleted := false;
 264                         delayedLogMoves := (fn () => print "Executing delayed log moves/deletes.\n")))
 265
 266 fun findVhostUser fname =
 267     let
 268         val inf = TextIO.openIn fname
 269
 270         fun loop () =
 271             case TextIO.inputLine inf of
 272                 NONE => NONE
 273               | SOME line =>
 274                 if String.isPrefix "# Owner: " line then
 275                     case String.tokens Char.isSpace line of
 276                         [_, _, user] => SOME user
 277                       | _ => NONE
 278                 else
 279                     loop ()
 280     in
 281         loop ()
 282         before TextIO.closeIn inf
 283     end handle _ => NONE
 284
 285 val webNodes_full = Config.Apache.webNodes_all @ Config.Apache.webNodes_admin
 286
 287 fun isVersion1 node =
 288     List.exists (fn (n, {version = ConfigTypes.APACHE_1_3, ...}) => n = node
 289                   | _ => false) webNodes_full
 290
 291 fun imVersion1 () = isVersion1 (Slave.hostname ())
 292
 293 fun isWaklog node =
 294     List.exists (fn (n, {auth = ConfigTypes.MOD_WAKLOG, ...}) => n = node
 295                   | _ => false) webNodes_full
 296
 297 fun down () = if imVersion1 () then Config.Apache.down1 else Config.Apache.down
 298 fun undown () = if imVersion1 () then Config.Apache.undown1 else Config.Apache.undown
 299 fun reload () = if imVersion1 () then Config.Apache.reload1 else Config.Apache.reload
 300 fun fixperms () = if imVersion1 () then Config.Apache.fixperms1 else Config.Apache.fixperms
 301
 302 fun logDir {user, node, vhostId} =
 303     String.concat [Config.Apache.logDirOf (isVersion1 node) user,
 304                    "/",
 305                    node,
 306                    "/",
 307                    vhostId]
 308
 309 fun realLogDir {user, node, vhostId} =
 310     String.concat [Config.Apache.realLogDirOf user,
 311                    "/",
 312                    node,
 313                    "/",
 314                    vhostId]
 315
 316 val () = Slave.registerFileHandler (fn fs =>
 317                                        let
 318                                            val spl = OS.Path.splitDirFile (#file fs)
 319                                        in
 320                                            if String.isSuffix ".vhost" (#file spl)
 321                                               orelse String.isSuffix ".vhost_ssl" (#file spl) then let
 322                                                    val realVhostFile = OS.Path.joinDirFile
 323                                                                            {dir = Config.Apache.confDir,
 324                                                                             file = #file spl}
 325
 326                                                    val user = findVhostUser (#file fs)
 327                                                    val oldUser = case #action fs of
 328                                                                      Slave.Delete false => user
 329                                                                    | _ => findVhostUser realVhostFile
 330                                                in
 331                                                    if (oldUser = NONE andalso #action fs <> Slave.Add)
 332                                                       orelse (user = NONE andalso not (Slave.isDelete (#action fs))) then
 333                                                        print ("Can't find user in " ^ #file fs ^ " or " ^ realVhostFile ^ "!  Taking no action.\n")
 334                                                    else
 335                                                        let
 336                                                            val vhostId = if OS.Path.ext (#file spl) = SOME "vhost_ssl" then
 337                                                                              OS.Path.base (#file spl) ^ ".ssl"
 338                                                                          else
 339                                                                              OS.Path.base (#file spl)
 340
 341                                                            fun realLogDir user =
 342                                                                logDir {user = valOf user,
 343                                                                        node = Slave.hostname (),
 344                                                                        vhostId = vhostId}
 345
 346                                                            fun backupLogs () =
 347                                                                OS.Path.joinDirFile
 348                                                                    {dir = Config.Apache.backupLogDirOf
 349                                                                               (isVersion1 (Slave.hostname ())),
 350                                                                     file = vhostId}
 351                                                        in
 352                                                            vhostsChanged := true;
 353                                                            case #action fs of
 354                                                                Slave.Delete _ =>
 355                                                                let
 356                                                                    val ldir = realLogDir oldUser
 357                                                                    val dlm = !delayedLogMoves
 358                                                                in
 359                                                                    if !logDeleted then
 360                                                                        ()
 361                                                                    else
 362                                                                        ((*ignore (OS.Process.system (down ()));*)
 363                                                                         ignore (OS.Process.system (fixperms ()));
 364                                                                         logDeleted := true);
 365                                                                    ignore (OS.Process.system (Config.rm
 366                                                                                               ^ " -rf "
 367                                                                                               ^ realVhostFile));
 368                                                                    delayedLogMoves := (fn () => (dlm ();
 369                                                                                                  Slave.moveDirCreate {from = ldir,
 370                                                                                                                       to = backupLogs ()}))
 371                                                                end
 372                                                              | Slave.Add =>
 373                                                                let
 374                                                                    val rld = realLogDir user
 375                                                                in
 376                                                                    ignore (OS.Process.system (Config.cp
 377                                                                                               ^ " "
 378                                                                                               ^ #file fs
 379                                                                                               ^ " "
 380                                                                                               ^ realVhostFile));
 381                                                                    if Posix.FileSys.access (rld, []) then
 382                                                                        ()
 383                                                                    else
 384                                                                        Slave.moveDirCreate {from = backupLogs (),
 385                                                                                             to = rld}
 386                                                                end
 387
 388                                                              | _ =>
 389                                                                (ignore (OS.Process.system (Config.cp
 390                                                                                            ^ " "
 391                                                                                            ^ #file fs
 392                                                                                            ^ " "
 393                                                                                            ^ realVhostFile));
 394                                                                 if user <> oldUser then
 395                                                                     let
 396                                                                         val old = realLogDir oldUser
 397                                                                         val rld = realLogDir user
 398
 399                                                                         val dlm = !delayedLogMoves
 400                                                                     in
 401                                                                         if !logDeleted then
 402                                                                             ()
 403                                                                         else
 404                                                                             ((*ignore (OS.Process.system (down ()));*)
 405                                                                              logDeleted := true);
 406                                                                         delayedLogMoves := (fn () => (dlm ();
 407                                                                                                       ignore (OS.Process.system (Config.rm
 408                                                                                                                                  ^ " -rf "
 409                                                                                                                                  ^ realLogDir oldUser))));
 410                                                                         if Posix.FileSys.access (rld, []) then
 411                                                                             ()
 412                                                                         else
 413                                                                             Slave.mkDirAll rld
 414                                                                     end
 415                                                                 else
 416                                                                     ())
 417                                                        end
 418                                                end
 419                                            else
 420                                                ()
 421                                        end)
 422
 423 val () = Slave.registerPostHandler
 424          (fn () =>
 425              (if !vhostsChanged then
 426                   (Slave.shellF ([reload ()],
 427                               fn cl => "Error reloading Apache with " ^ cl);
 428                    if !logDeleted then !delayedLogMoves () else ())
 429               else
 430                   ()))
 431
 432 val vhostFiles : (string * TextIO.outstream) list ref = ref []
 433 fun write' s = app (fn (node, file) => TextIO.output (file, s node)) (!vhostFiles)
 434 fun write s = app (fn (_, file) => TextIO.output (file, s)) (!vhostFiles)
 435
 436 val rewriteEnabled = ref false
 437 val localRewriteEnabled = ref false
 438 val expiresEnabled = ref false
 439 val localExpiresEnabled = ref false
 440 val currentVhost = ref ""
 441 val currentVhostId = ref ""
 442 val sslEnabled = ref false
 443
 444 val pre = ref (fn _ : {user : string, nodes : string list, id : string, hostname : string} => ())
 445 fun registerPre f =
 446     let
 447         val old = !pre
 448     in
 449         pre := (fn x => (old x; f x))
 450     end
 451
 452 val post = ref (fn () => ())
 453 fun registerPost f =
 454     let
 455         val old = !post
 456     in
 457         post := (fn () => (old (); f ()))
 458     end
 459
 460 fun doPre x = !pre x
 461 fun doPost () = !post ()
 462
 463 val aliaser = ref (fn _ : string => ())
 464 fun registerAliaser f =
 465     let
 466         val old = !aliaser
 467     in
 468         aliaser := (fn x => (old x; f x))
 469     end
 470
 471 fun vhostPost () = (!post ();
 472                     write "</VirtualHost>\n";
 473                     app (TextIO.closeOut o #2) (!vhostFiles))
 474
 475 val php_version = fn (EVar "php4", _) => SOME 4
 476                    | (EVar "php5", _) => SOME 5
 477                    | _ => NONE
 478
 479 fun vhostBody (env, makeFullHost) =
 480     let
 481         val places = Env.env (Env.list webPlace) (env, "WebPlaces")
 482
 483         val ssl = Env.env ssl (env, "SSL")
 484         val user = Env.env Env.string (env, "User")
 485         val group = Env.env Env.string (env, "Group")
 486         val docroot = Env.env Env.string (env, "DocumentRoot")
 487         val sadmin = Env.env Env.string (env, "ServerAdmin")
 488         val suexec = Env.env Env.bool (env, "SuExec")
 489         val php = Env.env php_version (env, "PhpVersion")
 490
 491         val fullHost = makeFullHost (Domain.currentDomain ())
 492         val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
 493         val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
 494     in
 495         currentVhost := fullHost;
 496         currentVhostId := vhostId;
 497         sslEnabled := Option.isSome ssl;
 498
 499         rewriteEnabled := false;
 500         localRewriteEnabled := false;
 501         expiresEnabled := false;
 502         localExpiresEnabled := false;
 503         vhostFiles := map (fn (node, ip) =>
 504                               let
 505                                   val file = Domain.domainFile {node = node,
 506                                                                 name = confFile}
 507
 508                                   val ld = logDir {user = user, node = node, vhostId = vhostId}
 509                               in
 510                                   TextIO.output (file, "# Owner: ");
 511                                   TextIO.output (file, user);
 512                                   TextIO.output (file, "\n<VirtualHost ");
 513                                   TextIO.output (file, ip);
 514                                   TextIO.output (file, ":");
 515                                   TextIO.output (file, case ssl of
 516                                                            SOME _ => "443"
 517                                                          | NONE => "80");
 518                                   TextIO.output (file, ">\n");
 519                                   TextIO.output (file, "\tErrorLog ");
 520                                   TextIO.output (file, ld);
 521                                   TextIO.output (file, "/error.log\n\tCustomLog ");
 522                                   TextIO.output (file, ld);
 523                                   TextIO.output (file, "/access.log combined\n");
 524                                   TextIO.output (file, "\tServerName ");
 525                                   TextIO.output (file, fullHost);
 526                                   app
 527                                       (fn dom => (TextIO.output (file, "\n\tServerAlias ");
 528                                                   TextIO.output (file, makeFullHost dom)))
 529                                       (Domain.currentAliasDomains ());
 530
 531                                   if suexec then
 532                                       if isVersion1 node then
 533                                           (TextIO.output (file, "\n\tUser ");
 534                                            TextIO.output (file, user);
 535                                            TextIO.output (file, "\n\tGroup ");
 536                                            TextIO.output (file, group))
 537                                       else
 538                                           (TextIO.output (file, "\n\tSuexecUserGroup ");
 539                                            TextIO.output (file, user);
 540                                            TextIO.output (file, " ");
 541                                            TextIO.output (file, group);
 542                                            TextIO.output (file, "\n\tsuPHP_UserGroup ");
 543                                            TextIO.output (file, user);
 544                                            TextIO.output (file, " ");
 545                                            TextIO.output (file, group))
 546                                   else
 547                                       ();
 548
 549                                   if isWaklog node then
 550                                       (TextIO.output (file, "\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
 551                                        TextIO.output (file, user);
 552                                        TextIO.output (file, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
 553                                        TextIO.output (file, user))
 554                                   else
 555                                       ();
 556
 557                                   TextIO.output (file, "\n\tDAVLockDB /var/lock/apache2/dav/");
 558                                   TextIO.output (file, user);
 559                                   TextIO.output (file, "/DAVLock");
 560
 561                                   if php <> Config.Apache.defaultPhpVersion then
 562                                       (TextIO.output (file, "\n\tAddHandler x-httpd-php");
 563                                        TextIO.output (file, Int.toString php);
 564                                        TextIO.output (file, " .php .phtml"))
 565                                   else
 566                                       ();
 567
 568                                   (ld, file)
 569                               end)
 570                           places;
 571         write "\n\tDocumentRoot ";
 572         write docroot;
 573         write "\n\tServerAdmin ";
 574         write sadmin;
 575         case ssl of
 576             SOME cert =>
 577             (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
 578              write cert)
 579           | NONE => ();
 580         write "\n";
 581         !pre {user = user, nodes = map #1 places, id = vhostId, hostname = fullHost};
 582         app (fn dom => !aliaser (makeFullHost dom)) (Domain.currentAliasDomains ())
 583     end
 584
 585 val () = Env.containerV_one "vhost"
 586          ("host", Env.string)
 587          (fn (env, host) => vhostBody (env, fn dom => host ^ "." ^ dom),
 588           vhostPost)
 589
 590 val () = Env.containerV_none "vhostDefault"
 591          (fn env => vhostBody (env, fn dom => dom),
 592           vhostPost)
 593
 594 val inLocal = ref false
 595
 596 val () = Env.container_one "location"
 597          ("prefix", Env.string)
 598          (fn prefix =>
 599              (write "\t<Location ";
 600               write prefix;
 601               write ">\n";
 602               inLocal := true),
 603           fn () => (write "\t</Location>\n";
 604                     inLocal := false;
 605                     localRewriteEnabled := false;
 606                     localExpiresEnabled := false))
 607
 608 val () = Env.container_one "directory"
 609          ("directory", Env.string)
 610          (fn directory =>
 611              (write "\t<Directory ";
 612               write directory;
 613               write ">\n";
 614               inLocal := true),
 615           fn () => (write "\t</Directory>\n";
 616                     inLocal := false;
 617                     localRewriteEnabled := false;
 618                     localExpiresEnabled := false))
 619
 620 val () = Env.container_one "filesMatch"
 621          ("regexp", Env.string)
 622          (fn prefix =>
 623              (write "\t<FilesMatch \"";
 624               write prefix;
 625               write "\">\n"),
 626           fn () => (write "\t</FilesMatch>\n";
 627                     localRewriteEnabled := false;
 628                     localExpiresEnabled := false))
 629
 630 fun checkRewrite () =
 631     if !inLocal then
 632         if !localRewriteEnabled then
 633             ()
 634         else
 635             (write "\tRewriteEngine on\n";
 636              localRewriteEnabled := true)
 637     else if !rewriteEnabled then
 638         ()
 639     else
 640         (write "\tRewriteEngine on\n";
 641          rewriteEnabled := true)
 642
 643 fun checkExpires () =
 644     if !inLocal then
 645         if !localExpiresEnabled then
 646             ()
 647         else
 648             (write "\tExpiresActive on\n";
 649              localExpiresEnabled := true)
 650     else if !expiresEnabled then
 651         ()
 652     else
 653         (write "\tExpiresActive on\n";
 654          expiresEnabled := true)
 655
 656 val () = Env.action_three "localProxyRewrite"
 657          ("from", Env.string, "to", Env.string, "port", Env.int)
 658          (fn (from, to, port) =>
 659              (checkRewrite ();
 660               write "\tRewriteRule\t\"";
 661               write from;
 662               write "\"\thttp://localhost:";
 663               write (Int.toString port);
 664               write "/";
 665               write to;
 666               write " [P]\n"))
 667
 668 val () = Env.action_four "expiresByType"
 669          ("mime", Env.string, "base", interval_base, "num", Env.int, "inter", interval)
 670          (fn (mime, base, num, inter) =>
 671              (checkExpires ();
 672               write "\tExpiresByType\t\"";
 673               write mime;
 674               write "\"\t\"";
 675               write base;
 676               write " plus ";
 677               if num < 0 then
 678                   (write "-";
 679                    write (Int.toString (~num)))
 680               else
 681                   write (Int.toString num);
 682               write " ";
 683               write inter;
 684               write "\"\n"))
 685
 686 val () = Env.action_two "proxyPass"
 687          ("from", Env.string, "to", Env.string)
 688          (fn (from, to) =>
 689                  (write "\tProxyPass\t";
 690                   write from;
 691                   write "\t";
 692                   write to;
 693                   write "\n"))
 694
 695 val () = Env.action_two "proxyPassReverse"
 696          ("from", Env.string, "to", Env.string)
 697          (fn (from, to) =>
 698                  (write "\tProxyPassReverse\t";
 699                   write from;
 700                   write "\t";
 701                   write to;
 702                   write "\n"))
 703
 704 val () = Env.action_three "rewriteRule"
 705          ("from", Env.string, "to", Env.string, "flags", Env.list flag)
 706          (fn (from, to, flags) =>
 707              (checkRewrite ();
 708               write "\tRewriteRule\t\"";
 709               write from;
 710               write "\"\t\"";
 711               write to;
 712               write "\"";
 713               case flags of
 714                   [] => ()
 715                 | flag::rest => (write " [";
 716                                  write flag;
 717                                  app (fn flag => (write ",";
 718                                                   write flag)) rest;
 719                                  write "]");
 720               write "\n"))
 721
 722 val () = Env.action_three "rewriteCond"
 723          ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
 724          (fn (from, to, flags) =>
 725              (checkRewrite ();
 726               write "\tRewriteCond\t\"";
 727               write from;
 728               write "\"\t\"";
 729               write to;
 730               write "\"";
 731               case flags of
 732                   [] => ()
 733                 | flag::rest => (write " [";
 734                                  write flag;
 735                                  app (fn flag => (write ",";
 736                                                   write flag)) rest;
 737                                  write "]");
 738               write "\n"))
 739
 740 val () = Env.action_one "rewriteBase"
 741          ("prefix", Env.string)
 742          (fn prefix =>
 743              (checkRewrite ();
 744               write "\tRewriteBase\t\"";
 745               write prefix;
 746               write "\"\n"))
 747
 748 val () = Env.action_one "rewriteLogLevel"
 749          ("level", Env.int)
 750          (fn level =>
 751              (checkRewrite ();
 752               write "\tRewriteLog ";
 753               write' (fn x => x);
 754               write "/rewrite.log\n\tRewriteLogLevel ";
 755               write (Int.toString level);
 756               write "\n"))
 757
 758 val () = Env.action_two "alias"
 759          ("from", Env.string, "to", Env.string)
 760          (fn (from, to) =>
 761              (write "\tAlias\t";
 762               write from;
 763               write " ";
 764               write to;
 765               write "\n"))
 766
 767 val () = Env.action_two "scriptAlias"
 768          ("from", Env.string, "to", Env.string)
 769          (fn (from, to) =>
 770              (write "\tScriptAlias\t";
 771               write from;
 772               write " ";
 773               write to;
 774               write "\n"))
 775
 776 val () = Env.action_two "errorDocument"
 777          ("code", Env.string, "handler", Env.string)
 778          (fn (code, handler) =>
 779              let
 780                  val hasSpaces = CharVector.exists Char.isSpace handler
 781
 782                  fun maybeQuote () =
 783                      if hasSpaces then
 784                          write "\""
 785                      else
 786                          ()
 787              in
 788                  write "\tErrorDocument\t";
 789                  write code;
 790                  write " ";
 791                  maybeQuote ();
 792                  write handler;
 793                  maybeQuote ();
 794                  write "\n"
 795              end)
 796
 797 val () = Env.action_one "options"
 798          ("options", Env.list apache_option)
 799          (fn opts =>
 800              case opts of
 801                  [] => ()
 802                | _ => (write "\tOptions";
 803                        app (fn opt => (write " "; write opt)) opts;
 804                        write "\n"))
 805
 806 val () = Env.action_one "set_options"
 807          ("options", Env.list apache_option)
 808          (fn opts =>
 809              case opts of
 810                  [] => ()
 811                | _ => (write "\tOptions";
 812                        app (fn opt => (write " +"; write opt)) opts;
 813                        write "\n"))
 814
 815 val () = Env.action_one "unset_options"
 816          ("options", Env.list apache_option)
 817          (fn opts =>
 818              case opts of
 819                  [] => ()
 820                | _ => (write "\tOptions";
 821                        app (fn opt => (write " -"; write opt)) opts;
 822                        write "\n"))
 823
 824 val () = Env.action_one "cgiExtension"
 825          ("extension", Env.string)
 826          (fn ext => (write "\tAddHandler cgi-script ";
 827                      write ext;
 828                      write "\n"))
 829
 830 val () = Env.action_one "directoryIndex"
 831          ("filenames", Env.list Env.string)
 832          (fn opts =>
 833              (write "\tDirectoryIndex";
 834               app (fn opt => (write " "; write opt)) opts;
 835               write "\n"))
 836
 837 val () = Env.action_one "serverAliasHost"
 838          ("host", Env.string)
 839          (fn host =>
 840              (write "\tServerAlias ";
 841               write host;
 842               write "\n";
 843               !aliaser host))
 844
 845 val () = Env.action_one "serverAlias"
 846          ("host", Env.string)
 847          (fn host =>
 848              (app
 849                   (fn dom =>
 850                       let
 851                           val full = host ^ "." ^ dom
 852                       in
 853                           write "\tServerAlias ";
 854                           write full;
 855                           write "\n";
 856                           !aliaser full
 857                       end)
 858                   (Domain.currentDomains ())))
 859
 860 val () = Env.action_none "serverAliasDefault"
 861          (fn () =>
 862              (app
 863                   (fn dom =>
 864                           (write "\tServerAlias ";
 865                            write dom;
 866                            write "\n";
 867                            !aliaser dom))
 868                   (Domain.currentDomains ())))
 869
 870 val authType = fn (EVar "basic", _) => SOME "basic"
 871                 | (EVar "digest", _) => SOME "digest"
 872                 | (EVar "kerberos", _) => SOME "kerberos"
 873                 | _ => NONE
 874
 875 fun allowAuthType "kerberos" = !sslEnabled
 876   | allowAuthType _ = true
 877
 878 val () = Env.action_one "authType"
 879          ("type", authType)
 880          (fn ty =>
 881              if allowAuthType ty then
 882                  (write "\tAuthType ";
 883                   write ty;
 884                   write "\n";
 885                   case ty of
 886                       "kerberos" =>
 887                       write "\tKrbMethodNegotiate off\n\tKrbMethodK5Passwd on\n\tKrbVerifyKDC off\n\tKrbAuthRealms HCOOP.NET\n\tKrbSaveCredentials on\n"
 888                     | _ => ())
 889              else
 890                  print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 891
 892 val () = Env.action_one "authName"
 893          ("name", Env.string)
 894          (fn name =>
 895              (write "\tAuthName \"";
 896               write name;
 897               write "\"\n"))
 898
 899 val () = Env.action_one "authUserFile"
 900          ("file", Env.string)
 901          (fn name =>
 902              (write "\tAuthUserFile ";
 903               write name;
 904               write "\n"))
 905
 906 val () = Env.action_none "requireValidUser"
 907          (fn () => write "\tRequire valid-user\n")
 908
 909 val () = Env.action_one "requireUser"
 910          ("users", Env.list Env.string)
 911          (fn names =>
 912              case names of
 913                  [] => ()
 914                | _ => (write "\tRequire user";
 915                        app (fn name => (write " "; write name)) names;
 916                        write "\n"))
 917
 918 val () = Env.action_one "requireGroup"
 919          ("groups", Env.list Env.string)
 920          (fn names =>
 921              case names of
 922                  [] => ()
 923                | _ => (write "\tRequire group";
 924                        app (fn name => (write " "; write name)) names;
 925                        write "\n"))
 926
 927 val () = Env.action_none "orderAllowDeny"
 928          (fn () => write "\tOrder allow,deny\n")
 929
 930 val () = Env.action_none "orderDenyAllow"
 931          (fn () => write "\tOrder deny,allow\n")
 932
 933 val () = Env.action_none "allowFromAll"
 934          (fn () => write "\tAllow from all\n")
 935
 936 val () = Env.action_one "allowFrom"
 937          ("entries", Env.list Env.string)
 938          (fn names =>
 939              case names of
 940                  [] => ()
 941                | _ => (write "\tAllow from";
 942                        app (fn name => (write " "; write name)) names;
 943                        write "\n"))
 944
 945 val () = Env.action_none "denyFromAll"
 946          (fn () => write "\tDeny from all\n")
 947
 948 val () = Env.action_one "denyFrom"
 949          ("entries", Env.list Env.string)
 950          (fn names =>
 951              case names of
 952                  [] => ()
 953                | _ => (write "\tDeny from";
 954                        app (fn name => (write " "; write name)) names;
 955                        write "\n"))
 956
 957 val () = Env.action_none "satisfyAll"
 958          (fn () => write "\tSatisfy all\n")
 959
 960 val () = Env.action_none "satisfyAny"
 961          (fn () => write "\tSatisfy any\n")
 962
 963 val () = Env.action_one "forceType"
 964          ("type", Env.string)
 965          (fn ty => (write "\tForceType ";
 966                     write ty;
 967                     write "\n"))
 968
 969 val () = Env.action_none "forceTypeOff"
 970          (fn () => write "\tForceType None\n")
 971
 972 val () = Env.action_two "action"
 973          ("what", Env.string, "how", Env.string)
 974          (fn (what, how) => (write "\tAction ";
 975                              write what;
 976                              write " ";
 977                              write how;
 978                              write "\n"))
 979
 980 val () = Env.action_one "addDefaultCharset"
 981          ("charset", Env.string)
 982          (fn ty => (write "\tAddDefaultCharset ";
 983                     write ty;
 984                     write "\n"))
 985
 986 (*val () = Env.action_one "davSvn"
 987          ("path", Env.string)
 988          (fn path => (write "\tDAV svn\n\tSVNPath ";
 989                       write path;
 990                       write "\n"))
 991
 992 val () = Env.action_one "authzSvnAccessFile"
 993          ("path", Env.string)
 994          (fn path => (write "\tAuthzSVNAccessFile ";
 995                       write path;
 996                       write "\n"))*)
 997
 998 val () = Env.action_none "davFilesystem"
 999          (fn path => write "\tDAV filesystem\n")
1000
1001 val () = Env.action_two "addDescription"
1002          ("description", Env.string, "patterns", Env.list Env.string)
1003          (fn (desc, pats) =>
1004              case pats of
1005                  [] => ()
1006                | _ => (write "\tAddDescription \"";
1007                        write (String.toString desc);
1008                        write "\"";
1009                        app (fn pat => (write " "; write pat)) pats;
1010                        write "\n"))
1011
1012 val () = Env.action_two "addIcon"
1013          ("icon", Env.string, "patterns", Env.list Env.string)
1014          (fn (icon, pats) =>
1015              case pats of
1016                  [] => ()
1017                | _ => (write "\tAddIcon \"";
1018                        write icon;
1019                        write "\"";
1020                        app (fn pat => (write " "; write pat)) pats;
1021                        write "\n"))
1022
1023 val () = Env.action_one "indexOptions"
1024          ("options", Env.list autoindex_option)
1025          (fn opts =>
1026              case opts of
1027                  [] => ()
1028                | _ => (write "\tIndexOptions";
1029                        app (fn (opt, arg) =>
1030                                (write " ";
1031                                 write opt;
1032                                 Option.app (fn arg =>
1033                                                (write "="; write arg)) arg)) opts;
1034                        write "\n"))
1035
1036 val () = Env.action_one "indexIgnore"
1037          ("patterns", Env.list Env.string)
1038          (fn pats =>
1039              case pats of
1040                  [] => ()
1041                | _ => (write "\tIndexIgnore";
1042                        app (fn pat => (write " "; write pat)) pats;
1043                        write "\n"))
1044
1045 val () = Env.action_one "set_indexOptions"
1046          ("options", Env.list autoindex_option)
1047          (fn opts =>
1048              case opts of
1049                  [] => ()
1050                | _ => (write "\tIndexOptions";
1051                        app (fn (opt, arg) =>
1052                                (write " +";
1053                                 write opt;
1054                                 Option.app (fn arg =>
1055                                                (write "="; write arg)) arg)) opts;
1056                        write "\n"))
1057
1058 val () = Env.action_one "unset_indexOptions"
1059          ("options", Env.list autoindex_option)
1060          (fn opts =>
1061              case opts of
1062                  [] => ()
1063                | _ => (write "\tIndexOptions";
1064                        app (fn (opt, _) =>
1065                                (write " -";
1066                                 write opt)) opts;
1067                        write "\n"))
1068
1069 val () = Env.action_one "headerName"
1070          ("name", Env.string)
1071          (fn name => (write "\tHeaderName ";
1072                       write name;
1073                       write "\n"))
1074
1075 val () = Env.action_one "readmeName"
1076          ("name", Env.string)
1077          (fn name => (write "\tReadmeName ";
1078                       write name;
1079                       write "\n"))
1080
1081 val () = Env.action_two "setEnv"
1082          ("key", Env.string, "value", Env.string)
1083          (fn (key, value) => (write "\tSetEnv \"";
1084                               write key;
1085                               write "\" \"";
1086                               write (String.translate (fn #"\"" => "\\\""
1087                                                         | ch => str ch) value);
1088                               write "\"\n"))
1089
1090 val () = Env.action_one "diskCache"
1091          ("path", Env.string)
1092          (fn path => (write "\tCacheEnable disk \"";
1093                       write path;
1094                       write "\"\n"))
1095
1096 val () = Env.action_one "phpVersion"
1097          ("version", php_version)
1098          (fn version => (write "\tAddHandler x-httpd-php";
1099                          write (Int.toString version);
1100                          write " .php .phtml\n"))
1101
1102 val () = Env.action_two "addType"
1103          ("mime type", Env.string, "extension", Env.string)
1104          (fn (mt, ext) => (write "\tAddType ";
1105                            write mt;
1106                            write " ";
1107                            write ext;
1108                            write "\n"))
1109
1110 val filter = fn (EVar "includes", _) => SOME "INCLUDES"
1111               | (EVar "deflate", _) => SOME "DEFLATE"
1112               | _ => NONE
1113
1114 val () = Env.action_two "addOutputFilter"
1115          ("filters", Env.list filter, "extensions", Env.list Env.string)
1116          (fn (f :: fs, exts as (_ :: _)) =>
1117              (write "\tAddOutputFilter ";
1118               write f;
1119               app (fn f => (write ";"; write f)) fs;
1120               app (fn ext => (write " "; write ext)) exts;
1121               write "\n")
1122            | _ => ())
1123
1124 val () = Domain.registerResetLocal (fn () =>
1125                                        ignore (OS.Process.system (Config.rm ^ " -rf /var/domtool/vhosts/*")))
1126
1127 val () = Domain.registerDescriber (Domain.considerAll
1128                                    [Domain.Extension {extension = "vhost",
1129                                                       heading = fn host => "Web vhost " ^ host ^ ":"},
1130                                     Domain.Extension {extension = "vhost_ssl",
1131                                                       heading = fn host => "SSL web vhost " ^ host ^ ":"}])
1132
1133 val () = Env.action_none "testNoHtaccess"
1134          (fn path => write "\tAllowOverride None\n")
1135
1136 fun writeWaklogUserFile () =
1137     let
1138         val users = Acl.users ()
1139         val outf = TextIO.openOut Config.Apache.waklogUserFile
1140     in
1141         app (fn user => if String.isSuffix "_admin" user then
1142                             ()
1143                         else
1144                             (TextIO.output (outf, "<Location /~");
1145                              TextIO.output (outf, user);
1146                              TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
1147                              TextIO.output (outf, user);
1148                              TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
1149                              TextIO.output (outf, user);
1150                              TextIO.output (outf, "\n</Location>\n\n"))) users;
1151         TextIO.closeOut outf
1152     end
1153
1154 val () = Domain.registerOnUsersChange writeWaklogUserFile
1155
1156 end