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 "\tretry=0\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_one "proxyPreserveHost"
 697          ("enable", Env.bool)
 698          (fn (enable) =>
 699              (write "\tProxyPreserveHost\t";
 700               if enable then write "On" else write "Off";
 701               write "\n"))
 702
 703 val () = Env.action_three "rewriteRule"
 704          ("from", Env.string, "to", Env.string, "flags", Env.list flag)
 705          (fn (from, to, flags) =>
 706              (checkRewrite ();
 707               write "\tRewriteRule\t\"";
 708               write from;
 709               write "\"\t\"";
 710               write to;
 711               write "\"";
 712               case flags of
 713                   [] => ()
 714                 | flag::rest => (write " [";
 715                                  write flag;
 716                                  app (fn flag => (write ",";
 717                                                   write flag)) rest;
 718                                  write "]");
 719               write "\n"))
 720
 721 val () = Env.action_three "rewriteCond"
 722          ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
 723          (fn (from, to, flags) =>
 724              (checkRewrite ();
 725               write "\tRewriteCond\t\"";
 726               write from;
 727               write "\"\t\"";
 728               write to;
 729               write "\"";
 730               case flags of
 731                   [] => ()
 732                 | flag::rest => (write " [";
 733                                  write flag;
 734                                  app (fn flag => (write ",";
 735                                                   write flag)) rest;
 736                                  write "]");
 737               write "\n"))
 738
 739 val () = Env.action_one "rewriteBase"
 740          ("prefix", Env.string)
 741          (fn prefix =>
 742              (checkRewrite ();
 743               write "\tRewriteBase\t\"";
 744               write prefix;
 745               write "\"\n"))
 746
 747 val () = Env.action_one "rewriteLogLevel"
 748          ("level", Env.int)
 749          (fn level =>
 750              (checkRewrite ();
 751               write "\tRewriteLog ";
 752               write' (fn x => x);
 753               write "/rewrite.log\n\tRewriteLogLevel ";
 754               write (Int.toString level);
 755               write "\n"))
 756
 757 val () = Env.action_two "alias"
 758          ("from", Env.string, "to", Env.string)
 759          (fn (from, to) =>
 760              (write "\tAlias\t";
 761               write from;
 762               write " ";
 763               write to;
 764               write "\n"))
 765
 766 val () = Env.action_two "scriptAlias"
 767          ("from", Env.string, "to", Env.string)
 768          (fn (from, to) =>
 769              (write "\tScriptAlias\t";
 770               write from;
 771               write " ";
 772               write to;
 773               write "\n"))
 774
 775 val () = Env.action_two "errorDocument"
 776          ("code", Env.string, "handler", Env.string)
 777          (fn (code, handler) =>
 778              let
 779                  val hasSpaces = CharVector.exists Char.isSpace handler
 780
 781                  fun maybeQuote () =
 782                      if hasSpaces then
 783                          write "\""
 784                      else
 785                          ()
 786              in
 787                  write "\tErrorDocument\t";
 788                  write code;
 789                  write " ";
 790                  maybeQuote ();
 791                  write handler;
 792                  maybeQuote ();
 793                  write "\n"
 794              end)
 795
 796 val () = Env.action_one "options"
 797          ("options", Env.list apache_option)
 798          (fn opts =>
 799              case opts of
 800                  [] => ()
 801                | _ => (write "\tOptions";
 802                        app (fn opt => (write " "; write opt)) opts;
 803                        write "\n"))
 804
 805 val () = Env.action_one "set_options"
 806          ("options", Env.list apache_option)
 807          (fn opts =>
 808              case opts of
 809                  [] => ()
 810                | _ => (write "\tOptions";
 811                        app (fn opt => (write " +"; write opt)) opts;
 812                        write "\n"))
 813
 814 val () = Env.action_one "unset_options"
 815          ("options", Env.list apache_option)
 816          (fn opts =>
 817              case opts of
 818                  [] => ()
 819                | _ => (write "\tOptions";
 820                        app (fn opt => (write " -"; write opt)) opts;
 821                        write "\n"))
 822
 823 val () = Env.action_one "cgiExtension"
 824          ("extension", Env.string)
 825          (fn ext => (write "\tAddHandler cgi-script ";
 826                      write ext;
 827                      write "\n"))
 828
 829 val () = Env.action_one "directoryIndex"
 830          ("filenames", Env.list Env.string)
 831          (fn opts =>
 832              (write "\tDirectoryIndex";
 833               app (fn opt => (write " "; write opt)) opts;
 834               write "\n"))
 835
 836 val () = Env.action_one "serverAliasHost"
 837          ("host", Env.string)
 838          (fn host =>
 839              (write "\tServerAlias ";
 840               write host;
 841               write "\n";
 842               !aliaser host))
 843
 844 val () = Env.action_one "serverAlias"
 845          ("host", Env.string)
 846          (fn host =>
 847              (app
 848                   (fn dom =>
 849                       let
 850                           val full = host ^ "." ^ dom
 851                       in
 852                           write "\tServerAlias ";
 853                           write full;
 854                           write "\n";
 855                           !aliaser full
 856                       end)
 857                   (Domain.currentDomains ())))
 858
 859 val () = Env.action_none "serverAliasDefault"
 860          (fn () =>
 861              (app
 862                   (fn dom =>
 863                           (write "\tServerAlias ";
 864                            write dom;
 865                            write "\n";
 866                            !aliaser dom))
 867                   (Domain.currentDomains ())))
 868
 869 val authType = fn (EVar "basic", _) => SOME "basic"
 870                 | (EVar "digest", _) => SOME "digest"
 871                 | (EVar "kerberos", _) => SOME "kerberos"
 872                 | _ => NONE
 873
 874 fun allowAuthType "kerberos" = !sslEnabled
 875   | allowAuthType _ = true
 876
 877 val () = Env.action_one "authType"
 878          ("type", authType)
 879          (fn ty =>
 880              if allowAuthType ty then
 881                  (write "\tAuthType ";
 882                   write ty;
 883                   write "\n";
 884                   case ty of
 885                       "kerberos" =>
 886                       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"
 887                     | _ => ())
 888              else
 889                  print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 890
 891 val () = Env.action_one "authName"
 892          ("name", Env.string)
 893          (fn name =>
 894              (write "\tAuthName \"";
 895               write name;
 896               write "\"\n"))
 897
 898 val () = Env.action_one "authUserFile"
 899          ("file", Env.string)
 900          (fn name =>
 901              (write "\tAuthUserFile ";
 902               write name;
 903               write "\n"))
 904
 905 val () = Env.action_one "authGroupFile"
 906          ("file", Env.string)
 907          (fn name =>
 908              (write "\tAuthGroupFile ";
 909               write name;
 910               write "\n"))
 911
 912 val () = Env.action_none "requireValidUser"
 913          (fn () => write "\tRequire valid-user\n")
 914
 915 val () = Env.action_one "requireUser"
 916          ("users", Env.list Env.string)
 917          (fn names =>
 918              case names of
 919                  [] => ()
 920                | _ => (write "\tRequire user";
 921                        app (fn name => (write " "; write name)) names;
 922                        write "\n"))
 923
 924 val () = Env.action_one "requireGroup"
 925          ("groups", Env.list Env.string)
 926          (fn names =>
 927              case names of
 928                  [] => ()
 929                | _ => (write "\tRequire group";
 930                        app (fn name => (write " "; write name)) names;
 931                        write "\n"))
 932
 933 val () = Env.action_none "orderAllowDeny"
 934          (fn () => write "\tOrder allow,deny\n")
 935
 936 val () = Env.action_none "orderDenyAllow"
 937          (fn () => write "\tOrder deny,allow\n")
 938
 939 val () = Env.action_none "allowFromAll"
 940          (fn () => write "\tAllow from all\n")
 941
 942 val () = Env.action_one "allowFrom"
 943          ("entries", Env.list Env.string)
 944          (fn names =>
 945              case names of
 946                  [] => ()
 947                | _ => (write "\tAllow from";
 948                        app (fn name => (write " "; write name)) names;
 949                        write "\n"))
 950
 951 val () = Env.action_none "denyFromAll"
 952          (fn () => write "\tDeny from all\n")
 953
 954 val () = Env.action_one "denyFrom"
 955          ("entries", Env.list Env.string)
 956          (fn names =>
 957              case names of
 958                  [] => ()
 959                | _ => (write "\tDeny from";
 960                        app (fn name => (write " "; write name)) names;
 961                        write "\n"))
 962
 963 val () = Env.action_none "satisfyAll"
 964          (fn () => write "\tSatisfy all\n")
 965
 966 val () = Env.action_none "satisfyAny"
 967          (fn () => write "\tSatisfy any\n")
 968
 969 val () = Env.action_one "forceType"
 970          ("type", Env.string)
 971          (fn ty => (write "\tForceType ";
 972                     write ty;
 973                     write "\n"))
 974
 975 val () = Env.action_none "forceTypeOff"
 976          (fn () => write "\tForceType None\n")
 977
 978 val () = Env.action_two "action"
 979          ("what", Env.string, "how", Env.string)
 980          (fn (what, how) => (write "\tAction ";
 981                              write what;
 982                              write " ";
 983                              write how;
 984                              write "\n"))
 985
 986 val () = Env.action_one "addDefaultCharset"
 987          ("charset", Env.string)
 988          (fn ty => (write "\tAddDefaultCharset ";
 989                     write ty;
 990                     write "\n"))
 991
 992 (*val () = Env.action_one "davSvn"
 993          ("path", Env.string)
 994          (fn path => (write "\tDAV svn\n\tSVNPath ";
 995                       write path;
 996                       write "\n"))
 997
 998 val () = Env.action_one "authzSvnAccessFile"
 999          ("path", Env.string)
1000          (fn path => (write "\tAuthzSVNAccessFile ";
1001                       write path;
1002                       write "\n"))*)
1003
1004 val () = Env.action_none "davFilesystem"
1005          (fn path => write "\tDAV filesystem\n")
1006
1007 val () = Env.action_two "addDescription"
1008          ("description", Env.string, "patterns", Env.list Env.string)
1009          (fn (desc, pats) =>
1010              case pats of
1011                  [] => ()
1012                | _ => (write "\tAddDescription \"";
1013                        write (String.toString desc);
1014                        write "\"";
1015                        app (fn pat => (write " "; write pat)) pats;
1016                        write "\n"))
1017
1018 val () = Env.action_two "addIcon"
1019          ("icon", Env.string, "patterns", Env.list Env.string)
1020          (fn (icon, pats) =>
1021              case pats of
1022                  [] => ()
1023                | _ => (write "\tAddIcon \"";
1024                        write icon;
1025                        write "\"";
1026                        app (fn pat => (write " "; write pat)) pats;
1027                        write "\n"))
1028
1029 val () = Env.action_one "indexOptions"
1030          ("options", Env.list autoindex_option)
1031          (fn opts =>
1032              case opts of
1033                  [] => ()
1034                | _ => (write "\tIndexOptions";
1035                        app (fn (opt, arg) =>
1036                                (write " ";
1037                                 write opt;
1038                                 Option.app (fn arg =>
1039                                                (write "="; write arg)) arg)) opts;
1040                        write "\n"))
1041
1042 val () = Env.action_one "indexIgnore"
1043          ("patterns", Env.list Env.string)
1044          (fn pats =>
1045              case pats of
1046                  [] => ()
1047                | _ => (write "\tIndexIgnore";
1048                        app (fn pat => (write " "; write pat)) pats;
1049                        write "\n"))
1050
1051 val () = Env.action_one "set_indexOptions"
1052          ("options", Env.list autoindex_option)
1053          (fn opts =>
1054              case opts of
1055                  [] => ()
1056                | _ => (write "\tIndexOptions";
1057                        app (fn (opt, arg) =>
1058                                (write " +";
1059                                 write opt;
1060                                 Option.app (fn arg =>
1061                                                (write "="; write arg)) arg)) opts;
1062                        write "\n"))
1063
1064 val () = Env.action_one "unset_indexOptions"
1065          ("options", Env.list autoindex_option)
1066          (fn opts =>
1067              case opts of
1068                  [] => ()
1069                | _ => (write "\tIndexOptions";
1070                        app (fn (opt, _) =>
1071                                (write " -";
1072                                 write opt)) opts;
1073                        write "\n"))
1074
1075 val () = Env.action_one "headerName"
1076          ("name", Env.string)
1077          (fn name => (write "\tHeaderName ";
1078                       write name;
1079                       write "\n"))
1080
1081 val () = Env.action_one "readmeName"
1082          ("name", Env.string)
1083          (fn name => (write "\tReadmeName ";
1084                       write name;
1085                       write "\n"))
1086
1087 val () = Env.action_two "setEnv"
1088          ("key", Env.string, "value", Env.string)
1089          (fn (key, value) => (write "\tSetEnv \"";
1090                               write key;
1091                               write "\" \"";
1092                               write (String.translate (fn #"\"" => "\\\""
1093                                                         | ch => str ch) value);
1094                               write "\"\n"))
1095
1096 val () = Env.action_one "diskCache"
1097          ("path", Env.string)
1098          (fn path => (write "\tCacheEnable disk \"";
1099                       write path;
1100                       write "\"\n"))
1101
1102 val () = Env.action_one "phpVersion"
1103          ("version", php_version)
1104          (fn version => (write "\tAddHandler x-httpd-php";
1105                          write (Int.toString version);
1106                          write " .php .phtml\n"))
1107
1108 val () = Env.action_two "addType"
1109          ("mime type", Env.string, "extension", Env.string)
1110          (fn (mt, ext) => (write "\tAddType ";
1111                            write mt;
1112                            write " ";
1113                            write ext;
1114                            write "\n"))
1115
1116 val filter = fn (EVar "includes", _) => SOME "INCLUDES"
1117               | (EVar "deflate", _) => SOME "DEFLATE"
1118               | _ => NONE
1119
1120 val () = Env.action_two "addOutputFilter"
1121          ("filters", Env.list filter, "extensions", Env.list Env.string)
1122          (fn (f :: fs, exts as (_ :: _)) =>
1123              (write "\tAddOutputFilter ";
1124               write f;
1125               app (fn f => (write ";"; write f)) fs;
1126               app (fn ext => (write " "; write ext)) exts;
1127               write "\n")
1128            | _ => ())
1129
1130 val () = Env.action_one "sslCertificateChainFile"
1131          ("ssl_cacert_path", Env.string)
1132          (fn cacert =>
1133              if !sslEnabled then
1134                  (write "\tSSLCertificateChainFile \"";
1135                   write cacert;
1136                   write "\"\n")
1137              else
1138                  print "WARNING: Skipped sslCertificateChainFile because this isn't an SSL vhost.\n")
1139
1140 val () = Domain.registerResetLocal (fn () =>
1141                                        ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.Apache.confDir ^ "/*")))
1142
1143 val () = Domain.registerDescriber (Domain.considerAll
1144                                    [Domain.Extension {extension = "vhost",
1145                                                       heading = fn host => "Web vhost " ^ host ^ ":"},
1146                                     Domain.Extension {extension = "vhost_ssl",
1147                                                       heading = fn host => "SSL web vhost " ^ host ^ ":"}])
1148
1149 val () = Env.action_none "testNoHtaccess"
1150          (fn path => write "\tAllowOverride None\n")
1151
1152 fun writeWaklogUserFile () =
1153     let
1154         val users = Acl.users ()
1155         val outf = TextIO.openOut Config.Apache.waklogUserFile
1156     in
1157         app (fn user => if String.isSuffix "_admin" user then
1158                             ()
1159                         else
1160                             (TextIO.output (outf, "<Location /~");
1161                              TextIO.output (outf, user);
1162                              TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
1163                              TextIO.output (outf, user);
1164                              TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
1165                              TextIO.output (outf, user);
1166                              TextIO.output (outf, "\n</Location>\n\n"))) users;
1167         TextIO.closeOut outf
1168     end
1169
1170 val () = Domain.registerOnUsersChange writeWaklogUserFile
1171
1172 end