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                      | (EVar "notfound", _) => SOME "404"
 164                      | _ => NONE
 165
 166 val flag = fn (EVar "redirect", _) => SOME "R"
 167             | (EVar "forbidden", _) => SOME "F"
 168             | (EVar "gone", _) => SOME "G"
 169             | (EVar "last", _) => SOME "L"
 170             | (EVar "chain", _) => SOME "C"
 171             | (EVar "nosubreq", _) => SOME "NS"
 172             | (EVar "nocase", _) => SOME "NC"
 173             | (EVar "qsappend", _) => SOME "QSA"
 174             | (EVar "noescape", _) => SOME "NE"
 175             | (EVar "passthrough", _) => SOME "PT"
 176             | (EApp ((EVar "mimeType", _), e), _) =>
 177               Option.map (fn s => "T=" ^ s) (Env.string e)
 178             | (EApp ((EVar "redirectWith", _), e), _) =>
 179               Option.map (fn s => "R=" ^ s) (redirect_code e)
 180             | (EApp ((EVar "skip", _), e), _) =>
 181               Option.map (fn n => "S=" ^ Int.toString n) (Env.int e)
 182             | (EApp ((EApp ((EVar "env", _), e1), _), e2), _) =>
 183               (case Env.string e1 of
 184                    NONE => NONE
 185                  | SOME s1 => Option.map (fn s2 => "E=" ^ s1 ^ ":" ^ s2)
 186                                          (Env.string e2))
 187
 188             | _ => NONE
 189
 190 val cond_flag = fn (EVar "cond_nocase", _) => SOME "NC"
 191             | (EVar "ornext", _) => SOME "OR"
 192             | _ => NONE
 193
 194 val apache_option = fn (EVar "execCGI", _) => SOME "ExecCGI"
 195                      | (EVar "includesNOEXEC", _) => SOME "IncludesNOEXEC"
 196                      | (EVar "indexes", _) => SOME "Indexes"
 197                      | (EVar "followSymLinks", _) => SOME "FollowSymLinks"
 198                      | (EVar "multiViews", _) => SOME "MultiViews"
 199                      | _ => NONE
 200
 201 val autoindex_width = fn (EVar "autofit", _) => SOME "*"
 202                        | (EApp ((EVar "characters", _), n), _) =>
 203                          Option.map Int.toString (Env.int n)
 204                        | _ => NONE
 205
 206 val autoindex_option = fn (EApp ((EVar "descriptionWidth", _), w), _) =>
 207                           Option.map (fn w => ("DescriptionWidth", SOME w))
 208                           (autoindex_width w)
 209                         | (EVar "fancyIndexing", _) => SOME ("FancyIndexing", NONE)
 210                         | (EVar "foldersFirst", _) => SOME ("FoldersFirst", NONE)
 211                         | (EVar "htmlTable", _) => SOME ("HTMLTable", NONE)
 212                         | (EVar "iconsAreLinks", _) => SOME ("IconsAreLinks", NONE)
 213                         | (EApp ((EVar "iconHeight", _), n), _) =>
 214                           Option.map (fn w => ("IconHeight", SOME (Int.toString w)))
 215                                      (Env.int n)
 216                         | (EApp ((EVar "iconWidth", _), n), _) =>
 217                           Option.map (fn w => ("IconWidth", SOME (Int.toString w)))
 218                                      (Env.int n)
 219                         | (EVar "ignoreCase", _) => SOME ("IgnoreCase", NONE)
 220                         | (EVar "ignoreClient", _) => SOME ("IgnoreClient", NONE)
 221                         | (EApp ((EVar "nameWidth", _), w), _) =>
 222                           Option.map (fn w => ("NameWidth", SOME w))
 223                                      (autoindex_width w)
 224                         | (EVar "scanHtmlTitles", _) => SOME ("ScanHTMLTitles", NONE)
 225                         | (EVar "suppressColumnSorting", _) => SOME ("SuppressColumnSorting", NONE)
 226                         | (EVar "suppressDescription", _) => SOME ("SuppressDescription", NONE)
 227                         | (EVar "suppressHtmlPreamble", _) => SOME ("SuppressHTMLPreamble", NONE)
 228                         | (EVar "suppressIcon", _) => SOME ("SuppressIcon", NONE)
 229                         | (EVar "suppressLastModified", _) => SOME ("SuppressLastModified", NONE)
 230                         | (EVar "suppressRules", _) => SOME ("SuppressRules", NONE)
 231                         | (EVar "suppressSize", _) => SOME ("SuppressSize", NONE)
 232                         | (EVar "trackModified", _) => SOME ("TrackModified", NONE)
 233                         | (EVar "versionSort", _) => SOME ("VersionSort", NONE)
 234                         | (EVar "xhtml", _) => SOME ("XHTML", NONE)
 235
 236                         | _ => NONE
 237
 238 val interval_base = fn (EVar "access", _) => SOME "access"
 239                      | (EVar "modification", _) => SOME "modification"
 240                      | _ => NONE
 241
 242 val interval = fn (EVar "years", _) => SOME "years"
 243                 | (EVar "months", _) => SOME "months"
 244                 | (EVar "weeks", _) => SOME "weeks"
 245                 | (EVar "days", _) => SOME "days"
 246                 | (EVar "hours", _) => SOME "hours"
 247                 | (EVar "minutes", _) => SOME "minutes"
 248                 | (EVar "seconds", _) => SOME "seconds"
 249                 | _ => NONE
 250
 251 val vhostsChanged = ref false
 252 val logDeleted = ref false
 253 val delayedLogMoves = ref (fn () => ())
 254
 255 val () = Slave.registerPreHandler
 256              (fn () => (vhostsChanged := false;
 257                         logDeleted := false;
 258                         delayedLogMoves := (fn () => print "Executing delayed log moves/deletes.\n")))
 259
 260 fun findVhostUser fname =
 261     let
 262         val inf = TextIO.openIn fname
 263
 264         fun loop () =
 265             case TextIO.inputLine inf of
 266                 NONE => NONE
 267               | SOME line =>
 268                 if String.isPrefix "# Owner: " line then
 269                     case String.tokens Char.isSpace line of
 270                         [_, _, user] => SOME user
 271                       | _ => NONE
 272                 else
 273                     loop ()
 274     in
 275         loop ()
 276         before TextIO.closeIn inf
 277     end handle _ => NONE
 278
 279 val webNodes_full = Config.Apache.webNodes_all @ Config.Apache.webNodes_admin
 280
 281 fun isVersion1 node =
 282     List.exists (fn (n, {version = ConfigTypes.APACHE_1_3, ...}) => n = node
 283                   | _ => false) webNodes_full
 284
 285 fun imVersion1 () = isVersion1 (Slave.hostname ())
 286
 287 fun isWaklog node =
 288     List.exists (fn (n, {auth = ConfigTypes.MOD_WAKLOG, ...}) => n = node
 289                   | _ => false) webNodes_full
 290
 291 fun down () = if imVersion1 () then Config.Apache.down1 else Config.Apache.down
 292 fun undown () = if imVersion1 () then Config.Apache.undown1 else Config.Apache.undown
 293 fun reload () = if imVersion1 () then Config.Apache.reload1 else Config.Apache.reload
 294 fun fixperms () = if imVersion1 () then Config.Apache.fixperms1 else Config.Apache.fixperms
 295
 296 fun logDir {user, node, vhostId} =
 297     String.concat [Config.Apache.logDirOf (isVersion1 node) user,
 298                    "/",
 299                    node,
 300                    "/",
 301                    vhostId]
 302
 303 fun realLogDir {user, node, vhostId} =
 304     String.concat [Config.Apache.realLogDirOf user,
 305                    "/",
 306                    node,
 307                    "/",
 308                    vhostId]
 309
 310 val () = Slave.registerFileHandler (fn fs =>
 311                                        let
 312                                            val spl = OS.Path.splitDirFile (#file fs)
 313                                        in
 314                                            if String.isSuffix ".vhost" (#file spl)
 315                                               orelse String.isSuffix ".vhost_ssl" (#file spl) then let
 316                                                    val realVhostFile = OS.Path.joinDirFile
 317                                                                            {dir = Config.Apache.confDir,
 318                                                                             file = #file spl}
 319
 320                                                    val user = findVhostUser (#file fs)
 321                                                    val oldUser = case #action fs of
 322                                                                      Slave.Delete false => user
 323                                                                    | _ => findVhostUser realVhostFile
 324                                                in
 325                                                    if (oldUser = NONE andalso #action fs <> Slave.Add)
 326                                                       orelse (user = NONE andalso not (Slave.isDelete (#action fs))) then
 327                                                        print ("Can't find user in " ^ #file fs ^ " or " ^ realVhostFile ^ "!  Taking no action.\n")
 328                                                    else
 329                                                        let
 330                                                            val vhostId = if OS.Path.ext (#file spl) = SOME "vhost_ssl" then
 331                                                                              OS.Path.base (#file spl) ^ ".ssl"
 332                                                                          else
 333                                                                              OS.Path.base (#file spl)
 334
 335                                                            fun realLogDir user =
 336                                                                logDir {user = valOf user,
 337                                                                        node = Slave.hostname (),
 338                                                                        vhostId = vhostId}
 339
 340                                                            fun backupLogs () =
 341                                                                OS.Path.joinDirFile
 342                                                                    {dir = Config.Apache.backupLogDirOf
 343                                                                               (isVersion1 (Slave.hostname ())),
 344                                                                     file = vhostId}
 345                                                        in
 346                                                            vhostsChanged := true;
 347                                                            case #action fs of
 348                                                                Slave.Delete _ =>
 349                                                                let
 350                                                                    val ldir = realLogDir oldUser
 351                                                                    val dlm = !delayedLogMoves
 352                                                                in
 353                                                                    if !logDeleted then
 354                                                                        ()
 355                                                                    else
 356                                                                        ((*ignore (OS.Process.system (down ()));*)
 357                                                                         ignore (OS.Process.system (fixperms ()));
 358                                                                         logDeleted := true);
 359                                                                    ignore (OS.Process.system (Config.rm
 360                                                                                               ^ " -rf "
 361                                                                                               ^ realVhostFile));
 362                                                                    delayedLogMoves := (fn () => (dlm ();
 363                                                                                                  Slave.moveDirCreate {from = ldir,
 364                                                                                                                       to = backupLogs ()}))
 365                                                                end
 366                                                              | Slave.Add =>
 367                                                                let
 368                                                                    val rld = realLogDir user
 369                                                                in
 370                                                                    ignore (OS.Process.system (Config.cp
 371                                                                                               ^ " "
 372                                                                                               ^ #file fs
 373                                                                                               ^ " "
 374                                                                                               ^ realVhostFile));
 375                                                                    if Posix.FileSys.access (rld, []) then
 376                                                                        ()
 377                                                                    else
 378                                                                        Slave.moveDirCreate {from = backupLogs (),
 379                                                                                             to = rld}
 380                                                                end
 381
 382                                                              | _ =>
 383                                                                (ignore (OS.Process.system (Config.cp
 384                                                                                            ^ " "
 385                                                                                            ^ #file fs
 386                                                                                            ^ " "
 387                                                                                            ^ realVhostFile));
 388                                                                 if user <> oldUser then
 389                                                                     let
 390                                                                         val old = realLogDir oldUser
 391                                                                         val rld = realLogDir user
 392
 393                                                                         val dlm = !delayedLogMoves
 394                                                                     in
 395                                                                         if !logDeleted then
 396                                                                             ()
 397                                                                         else
 398                                                                             ((*ignore (OS.Process.system (down ()));*)
 399                                                                              logDeleted := true);
 400                                                                         delayedLogMoves := (fn () => (dlm ();
 401                                                                                                       ignore (OS.Process.system (Config.rm
 402                                                                                                                                  ^ " -rf "
 403                                                                                                                                  ^ realLogDir oldUser))));
 404                                                                         if Posix.FileSys.access (rld, []) then
 405                                                                             ()
 406                                                                         else
 407                                                                             Slave.mkDirAll rld
 408                                                                     end
 409                                                                 else
 410                                                                     ())
 411                                                        end
 412                                                end
 413                                            else
 414                                                ()
 415                                        end)
 416
 417 val () = Slave.registerPostHandler
 418          (fn () =>
 419              (if !vhostsChanged then
 420                   (Slave.shellF ([reload ()],
 421                               fn cl => "Error reloading Apache with " ^ cl);
 422                    if !logDeleted then !delayedLogMoves () else ())
 423               else
 424                   ()))
 425
 426 val vhostFiles : (string * TextIO.outstream) list ref = ref []
 427 fun write' s = app (fn (node, file) => TextIO.output (file, s node)) (!vhostFiles)
 428 fun write s = app (fn (_, file) => TextIO.output (file, s)) (!vhostFiles)
 429
 430 val rewriteEnabled = ref false
 431 val localRewriteEnabled = ref false
 432 val expiresEnabled = ref false
 433 val localExpiresEnabled = ref false
 434 val currentVhost = ref ""
 435 val currentVhostId = ref ""
 436 val sslEnabled = ref false
 437
 438 val pre = ref (fn _ : {user : string, nodes : string list, id : string, hostname : string} => ())
 439 fun registerPre f =
 440     let
 441         val old = !pre
 442     in
 443         pre := (fn x => (old x; f x))
 444     end
 445
 446 val post = ref (fn () => ())
 447 fun registerPost f =
 448     let
 449         val old = !post
 450     in
 451         post := (fn () => (old (); f ()))
 452     end
 453
 454 fun doPre x = !pre x
 455 fun doPost () = !post ()
 456
 457 val aliaser = ref (fn _ : string => ())
 458 fun registerAliaser f =
 459     let
 460         val old = !aliaser
 461     in
 462         aliaser := (fn x => (old x; f x))
 463     end
 464
 465 fun vhostPost () = (!post ();
 466                     write "</VirtualHost>\n";
 467                     app (TextIO.closeOut o #2) (!vhostFiles))
 468
 469 val php_version = fn (EVar "php5", _) => SOME 5
 470                    | (EVar "fast_php", _) => SOME 6
 471                    | _ => NONE
 472
 473 fun vhostBody (env, makeFullHost) =
 474     let
 475         val places = Env.env (Env.list webPlace) (env, "WebPlaces")
 476
 477         val ssl = Env.env ssl (env, "SSL")
 478         val user = Env.env Env.string (env, "User")
 479         val group = Env.env Env.string (env, "Group")
 480         val docroot = Env.env Env.string (env, "DocumentRoot")
 481         val sadmin = Env.env Env.string (env, "ServerAdmin")
 482         val suexec = Env.env Env.bool (env, "SuExec")
 483         val php = Env.env php_version (env, "PhpVersion")
 484
 485         val fullHost = makeFullHost (Domain.currentDomain ())
 486         val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
 487         val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
 488     in
 489         currentVhost := fullHost;
 490         currentVhostId := vhostId;
 491         sslEnabled := Option.isSome ssl;
 492
 493         rewriteEnabled := false;
 494         localRewriteEnabled := false;
 495         expiresEnabled := false;
 496         localExpiresEnabled := false;
 497         vhostFiles := map (fn (node, ip) =>
 498                               let
 499                                   val file = Domain.domainFile {node = node,
 500                                                                 name = confFile}
 501
 502                                   val ld = logDir {user = user, node = node, vhostId = vhostId}
 503                               in
 504                                   TextIO.output (file, "# Owner: ");
 505                                   TextIO.output (file, user);
 506                                   TextIO.output (file, "\n<VirtualHost ");
 507                                   TextIO.output (file, ip);
 508                                   TextIO.output (file, ":");
 509                                   TextIO.output (file, case ssl of
 510                                                            SOME _ => "443"
 511                                                          | NONE => "80");
 512                                   TextIO.output (file, ">\n");
 513                                   TextIO.output (file, "\tErrorLog ");
 514                                   TextIO.output (file, ld);
 515                                   TextIO.output (file, "/error.log\n\tCustomLog ");
 516                                   TextIO.output (file, ld);
 517                                   TextIO.output (file, "/access.log combined\n");
 518                                   TextIO.output (file, "\tServerName ");
 519                                   TextIO.output (file, fullHost);
 520                                   app
 521                                       (fn dom => (TextIO.output (file, "\n\tServerAlias ");
 522                                                   TextIO.output (file, makeFullHost dom)))
 523                                       (Domain.currentAliasDomains ());
 524
 525                                   if suexec then
 526                                       if isVersion1 node then
 527                                           (TextIO.output (file, "\n\tUser ");
 528                                            TextIO.output (file, user);
 529                                            TextIO.output (file, "\n\tGroup ");
 530                                            TextIO.output (file, group))
 531                                       else
 532                                           (TextIO.output (file, "\n\tSuexecUserGroup ");
 533                                            TextIO.output (file, user);
 534                                            TextIO.output (file, " ");
 535                                            TextIO.output (file, group);
 536                                            TextIO.output (file, "\n\tsuPHP_UserGroup ");
 537                                            TextIO.output (file, user);
 538                                            TextIO.output (file, " ");
 539                                            TextIO.output (file, group))
 540                                   else
 541                                       ();
 542
 543                                   if isWaklog node then
 544                                       (TextIO.output (file, "\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
 545                                        TextIO.output (file, user);
 546                                        TextIO.output (file, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
 547                                        TextIO.output (file, user))
 548                                   else
 549                                       ();
 550
 551                                   TextIO.output (file, "\n\tDAVLockDB /var/lock/apache2/dav/");
 552                                   TextIO.output (file, user);
 553                                   TextIO.output (file, "/DAVLock");
 554
 555                                   if php = Config.Apache.defaultPhpVersion
 556                                   then
 557                                       ()
 558                                   else if php = 6
 559                                   then
 560                                       (* fastcgi php 5.6 since 6 doesn't exist *)
 561                                       (TextIO.output (file, "\n\tAddHandler fcgid-script .php .phtml");
 562                                        (* FIXME: only set kerberos wrapper of waklog is on *)
 563                                        map (fn ext => (TextIO.output (file, "\n\tFcgidWrapper \"");
 564                                                        TextIO.output (file, Config.Apache.fastCgiWrapperOf user);
 565                                                        TextIO.output (file, " ");
 566                                                        TextIO.output (file, Config.Apache.phpFastCgiWrapper);
 567                                                        TextIO.output (file, "\" ");
 568                                                        TextIO.output (file, ext)))
 569                                            [".php", ".phtml"];
 570                                        ())
 571                                   else
 572                                       (TextIO.output (file, "\n\tAddHandler x-httpd-php");
 573                                        TextIO.output (file, Int.toString php);
 574                                        TextIO.output (file, " .php .phtml"));
 575                           (ld, file)
 576                               end)
 577                           places;
 578         write "\n\tDocumentRoot ";
 579         write docroot;
 580         write "\n\tServerAdmin ";
 581         write sadmin;
 582         case ssl of
 583             SOME cert =>
 584             (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
 585              write cert)
 586           | NONE => ();
 587         write "\n";
 588         !pre {user = user, nodes = map #1 places, id = vhostId, hostname = fullHost};
 589         app (fn dom => !aliaser (makeFullHost dom)) (Domain.currentAliasDomains ())
 590     end
 591
 592 val () = Env.containerV_one "vhost"
 593          ("host", Env.string)
 594          (fn (env, host) => vhostBody (env, fn dom => host ^ "." ^ dom),
 595           vhostPost)
 596
 597 val () = Env.containerV_none "vhostDefault"
 598          (fn env => vhostBody (env, fn dom => dom),
 599           vhostPost)
 600
 601 val inLocal = ref false
 602
 603 val () = Env.container_one "location"
 604          ("prefix", Env.string)
 605          (fn prefix =>
 606              (write "\t<Location ";
 607               write prefix;
 608               write ">\n";
 609               inLocal := true),
 610           fn () => (write "\t</Location>\n";
 611                     inLocal := false;
 612                     localRewriteEnabled := false;
 613                     localExpiresEnabled := false))
 614
 615 val () = Env.container_one "directory"
 616          ("directory", Env.string)
 617          (fn directory =>
 618              (write "\t<Directory ";
 619               write directory;
 620               write ">\n";
 621               inLocal := true),
 622           fn () => (write "\t</Directory>\n";
 623                     inLocal := false;
 624                     localRewriteEnabled := false;
 625                     localExpiresEnabled := false))
 626
 627 val () = Env.container_one "filesMatch"
 628          ("regexp", Env.string)
 629          (fn prefix =>
 630              (write "\t<FilesMatch \"";
 631               write prefix;
 632               write "\">\n"),
 633           fn () => (write "\t</FilesMatch>\n";
 634                     localRewriteEnabled := false;
 635                     localExpiresEnabled := false))
 636
 637 fun checkRewrite () =
 638     if !inLocal then
 639         if !localRewriteEnabled then
 640             ()
 641         else
 642             (write "\tRewriteEngine on\n";
 643              localRewriteEnabled := true)
 644     else if !rewriteEnabled then
 645         ()
 646     else
 647         (write "\tRewriteEngine on\n";
 648          rewriteEnabled := true)
 649
 650 fun checkExpires () =
 651     if !inLocal then
 652         if !localExpiresEnabled then
 653             ()
 654         else
 655             (write "\tExpiresActive on\n";
 656              localExpiresEnabled := true)
 657     else if !expiresEnabled then
 658         ()
 659     else
 660         (write "\tExpiresActive on\n";
 661          expiresEnabled := true)
 662
 663 val () = Env.action_three "localProxyRewrite"
 664          ("from", Env.string, "to", Env.string, "port", Env.int)
 665          (fn (from, to, port) =>
 666              (checkRewrite ();
 667               write "\tRewriteRule\t\"";
 668               write from;
 669               write "\"\thttp://localhost:";
 670               write (Int.toString port);
 671               write "/";
 672               write to;
 673               write " [P]\n"))
 674
 675 val () = Env.action_four "expiresByType"
 676          ("mime", Env.string, "base", interval_base, "num", Env.int, "inter", interval)
 677          (fn (mime, base, num, inter) =>
 678              (checkExpires ();
 679               write "\tExpiresByType\t\"";
 680               write mime;
 681               write "\"\t\"";
 682               write base;
 683               write " plus ";
 684               if num < 0 then
 685                   (write "-";
 686                    write (Int.toString (~num)))
 687               else
 688                   write (Int.toString num);
 689               write " ";
 690               write inter;
 691               write "\"\n"))
 692
 693 val () = Env.action_two "proxyPass"
 694          ("from", Env.string, "to", Env.string)
 695          (fn (from, to) =>
 696                  (write "\tProxyPass\t";
 697                   write from;
 698                   write "\t";
 699                   write to;
 700                   write "\tretry=0\n"))
 701
 702 val () = Env.action_two "proxyPassReverse"
 703          ("from", Env.string, "to", Env.string)
 704          (fn (from, to) =>
 705                  (write "\tProxyPassReverse\t";
 706                   write from;
 707                   write "\t";
 708                   write to;
 709                   write "\n"))
 710
 711 val () = Env.action_one "proxyPreserveHost"
 712          ("enable", Env.bool)
 713          (fn (enable) =>
 714              (write "\tProxyPreserveHost\t";
 715               if enable then write "On" else write "Off";
 716               write "\n"))
 717
 718 val () = Env.action_three "rewriteRule"
 719          ("from", Env.string, "to", Env.string, "flags", Env.list flag)
 720          (fn (from, to, flags) =>
 721              (checkRewrite ();
 722               write "\tRewriteRule\t\"";
 723               write from;
 724               write "\"\t\"";
 725               write to;
 726               write "\"";
 727               case flags of
 728                   [] => ()
 729                 | flag::rest => (write " [";
 730                                  write flag;
 731                                  app (fn flag => (write ",";
 732                                                   write flag)) rest;
 733                                  write "]");
 734               write "\n"))
 735
 736 val () = Env.action_three "rewriteCond"
 737          ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
 738          (fn (from, to, flags) =>
 739              (checkRewrite ();
 740               write "\tRewriteCond\t\"";
 741               write from;
 742               write "\"\t\"";
 743               write to;
 744               write "\"";
 745               case flags of
 746                   [] => ()
 747                 | flag::rest => (write " [";
 748                                  write flag;
 749                                  app (fn flag => (write ",";
 750                                                   write flag)) rest;
 751                                  write "]");
 752               write "\n"))
 753
 754 val () = Env.action_one "rewriteBase"
 755          ("prefix", Env.string)
 756          (fn prefix =>
 757              (checkRewrite ();
 758               write "\tRewriteBase\t\"";
 759               write prefix;
 760               write "\"\n"))
 761
 762 val () = Env.action_one "rewriteLogLevel"
 763          ("level", Env.int)
 764          (fn level =>
 765              (checkRewrite ();
 766               write "\tRewriteLog ";
 767               write' (fn x => x);
 768               write "/rewrite.log\n\tRewriteLogLevel ";
 769               write (Int.toString level);
 770               write "\n"))
 771
 772 val () = Env.action_two "alias"
 773          ("from", Env.string, "to", Env.string)
 774          (fn (from, to) =>
 775              (write "\tAlias\t";
 776               write from;
 777               write " ";
 778               write to;
 779               write "\n"))
 780
 781 val () = Env.action_two "scriptAlias"
 782          ("from", Env.string, "to", Env.string)
 783          (fn (from, to) =>
 784              (write "\tScriptAlias\t";
 785               write from;
 786               write " ";
 787               write to;
 788               write "\n"))
 789
 790 val () = Env.action_two "fastScriptAlias"
 791          ("from", Env.string, "to", Env.string)
 792          (fn (from, to) =>
 793              let
 794                  (* mod_fcgid + kerberos limit this to working with
 795                  individual fcgi programs. assume the target path is a
 796                  file and any trailing `/' is just aliasing
 797                  syntax. Directory+File on the script is used to
 798                  activate fcgid instead of Location on the alias to
 799                  limit effects (alias+location also match in inverse
 800                  order causing pernicious side-effects *)
 801                  val fcgi_path = if String.sub (to, size to - 1) = #"/"
 802                                  then
 803                                      String.substring (to, 0, size to - 1)
 804                                  else
 805                                      to
 806                  val fcgi_dir = OS.Path.dir fcgi_path
 807                  val fcgi_file = OS.Path.file fcgi_path
 808              in
 809                  write "\tAlias\t"; write from; write " "; write to;  write "\n";
 810
 811                  write "\t<Directory "; write fcgi_dir;  write ">\n";
 812                  write "\t<Files "; write fcgi_file;  write ">\n";
 813                  write "\tSetHandler fcgid-script\n";
 814
 815                  (* FIXME: only set kerberos wrapper of waklog is on *)
 816                  write "\tFcgidWrapper \"";
 817                  write (Config.Apache.fastCgiWrapperOf (Domain.getUser ()));
 818                  write " ";
 819                  write fcgi_path;
 820                  write "\"\n";
 821
 822                  write "\t</Files>\n\t</Directory>\n"
 823              end)
 824
 825 val () = Env.action_two "errorDocument"
 826          ("code", Env.string, "handler", Env.string)
 827          (fn (code, handler) =>
 828              let
 829                  val hasSpaces = CharVector.exists Char.isSpace handler
 830
 831                  fun maybeQuote () =
 832                      if hasSpaces then
 833                          write "\""
 834                      else
 835                          ()
 836              in
 837                  write "\tErrorDocument\t";
 838                  write code;
 839                  write " ";
 840                  maybeQuote ();
 841                  write handler;
 842                  maybeQuote ();
 843                  write "\n"
 844              end)
 845
 846 val () = Env.action_one "options"
 847          ("options", Env.list apache_option)
 848          (fn opts =>
 849              case opts of
 850                  [] => ()
 851                | _ => (write "\tOptions";
 852                        app (fn opt => (write " "; write opt)) opts;
 853                        write "\n"))
 854
 855 val () = Env.action_one "set_options"
 856          ("options", Env.list apache_option)
 857          (fn opts =>
 858              case opts of
 859                  [] => ()
 860                | _ => (write "\tOptions";
 861                        app (fn opt => (write " +"; write opt)) opts;
 862                        write "\n"))
 863
 864 val () = Env.action_one "unset_options"
 865          ("options", Env.list apache_option)
 866          (fn opts =>
 867              case opts of
 868                  [] => ()
 869                | _ => (write "\tOptions";
 870                        app (fn opt => (write " -"; write opt)) opts;
 871                        write "\n"))
 872
 873 val () = Env.action_one "cgiExtension"
 874          ("extension", Env.string)
 875          (fn ext => (write "\tAddHandler cgi-script ";
 876                      write ext;
 877                      write "\n"))
 878
 879 val () = Env.action_one "directoryIndex"
 880          ("filenames", Env.list Env.string)
 881          (fn opts =>
 882              (write "\tDirectoryIndex";
 883               app (fn opt => (write " "; write opt)) opts;
 884               write "\n"))
 885
 886 val () = Env.action_one "serverAliasHost"
 887          ("host", Env.string)
 888          (fn host =>
 889              (write "\tServerAlias ";
 890               write host;
 891               write "\n";
 892               !aliaser host))
 893
 894 val () = Env.action_one "serverAlias"
 895          ("host", Env.string)
 896          (fn host =>
 897              (app
 898                   (fn dom =>
 899                       let
 900                           val full = host ^ "." ^ dom
 901                       in
 902                           write "\tServerAlias ";
 903                           write full;
 904                           write "\n";
 905                           !aliaser full
 906                       end)
 907                   (Domain.currentDomains ())))
 908
 909 val () = Env.action_none "serverAliasDefault"
 910          (fn () =>
 911              (app
 912                   (fn dom =>
 913                           (write "\tServerAlias ";
 914                            write dom;
 915                            write "\n";
 916                            !aliaser dom))
 917                   (Domain.currentDomains ())))
 918
 919 val authType = fn (EVar "basic", _) => SOME "basic"
 920                 | (EVar "digest", _) => SOME "digest"
 921                 | (EVar "kerberos", _) => SOME "kerberos"
 922                 | _ => NONE
 923
 924 fun allowAuthType "kerberos" = !sslEnabled
 925   | allowAuthType _ = true
 926
 927 val () = Env.action_one "authType"
 928          ("type", authType)
 929          (fn ty =>
 930              if allowAuthType ty then
 931                  (write "\tAuthType ";
 932                   write ty;
 933                   write "\n";
 934                   case ty of
 935                       "kerberos" =>
 936                       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"
 937                     | _ => ())
 938              else
 939                  print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 940
 941 val () = Env.action_one "authName"
 942          ("name", Env.string)
 943          (fn name =>
 944              (write "\tAuthName \"";
 945               write name;
 946               write "\"\n"))
 947
 948 val () = Env.action_one "authUserFile"
 949          ("file", Env.string)
 950          (fn name =>
 951              (write "\tAuthUserFile ";
 952               write name;
 953               write "\n"))
 954
 955 val () = Env.action_one "authGroupFile"
 956          ("file", Env.string)
 957          (fn name =>
 958              (write "\tAuthGroupFile ";
 959               write name;
 960               write "\n"))
 961
 962 val () = Env.action_none "requireValidUser"
 963          (fn () => write "\tRequire valid-user\n")
 964
 965 val () = Env.action_one "requireUser"
 966          ("users", Env.list Env.string)
 967          (fn names =>
 968              case names of
 969                  [] => ()
 970                | _ => (write "\tRequire user";
 971                        app (fn name => (write " "; write name)) names;
 972                        write "\n"))
 973
 974 val () = Env.action_one "requireGroup"
 975          ("groups", Env.list Env.string)
 976          (fn names =>
 977              case names of
 978                  [] => ()
 979                | _ => (write "\tRequire group";
 980                        app (fn name => (write " "; write name)) names;
 981                        write "\n"))
 982
 983 val () = Env.action_none "orderAllowDeny"
 984          (fn () => write "\tOrder allow,deny\n")
 985
 986 val () = Env.action_none "orderDenyAllow"
 987          (fn () => write "\tOrder deny,allow\n")
 988
 989 val () = Env.action_none "allowFromAll"
 990          (fn () => write "\tAllow from all\n")
 991
 992 val () = Env.action_one "allowFrom"
 993          ("entries", Env.list Env.string)
 994          (fn names =>
 995              case names of
 996                  [] => ()
 997                | _ => (write "\tAllow from";
 998                        app (fn name => (write " "; write name)) names;
 999                        write "\n"))
1000
1001 val () = Env.action_none "denyFromAll"
1002          (fn () => write "\tDeny from all\n")
1003
1004 val () = Env.action_one "denyFrom"
1005          ("entries", Env.list Env.string)
1006          (fn names =>
1007              case names of
1008                  [] => ()
1009                | _ => (write "\tDeny from";
1010                        app (fn name => (write " "; write name)) names;
1011                        write "\n"))
1012
1013 val () = Env.action_none "satisfyAll"
1014          (fn () => write "\tSatisfy all\n")
1015
1016 val () = Env.action_none "satisfyAny"
1017          (fn () => write "\tSatisfy any\n")
1018
1019 val () = Env.action_one "forceType"
1020          ("type", Env.string)
1021          (fn ty => (write "\tForceType ";
1022                     write ty;
1023                     write "\n"))
1024
1025 val () = Env.action_none "forceTypeOff"
1026          (fn () => write "\tForceType None\n")
1027
1028 val () = Env.action_two "action"
1029          ("what", Env.string, "how", Env.string)
1030          (fn (what, how) => (write "\tAction ";
1031                              write what;
1032                              write " ";
1033                              write how;
1034                              write "\n"))
1035
1036 val () = Env.action_one "addDefaultCharset"
1037          ("charset", Env.string)
1038          (fn ty => (write "\tAddDefaultCharset ";
1039                     write ty;
1040                     write "\n"))
1041
1042 (*val () = Env.action_one "davSvn"
1043          ("path", Env.string)
1044          (fn path => (write "\tDAV svn\n\tSVNPath ";
1045                       write path;
1046                       write "\n"))
1047
1048 val () = Env.action_one "authzSvnAccessFile"
1049          ("path", Env.string)
1050          (fn path => (write "\tAuthzSVNAccessFile ";
1051                       write path;
1052                       write "\n"))*)
1053
1054 val () = Env.action_none "davFilesystem"
1055          (fn path => write "\tDAV filesystem\n")
1056
1057 val () = Env.action_two "addDescription"
1058          ("description", Env.string, "patterns", Env.list Env.string)
1059          (fn (desc, pats) =>
1060              case pats of
1061                  [] => ()
1062                | _ => (write "\tAddDescription \"";
1063                        write (String.toString desc);
1064                        write "\"";
1065                        app (fn pat => (write " "; write pat)) pats;
1066                        write "\n"))
1067
1068 val () = Env.action_two "addIcon"
1069          ("icon", Env.string, "patterns", Env.list Env.string)
1070          (fn (icon, pats) =>
1071              case pats of
1072                  [] => ()
1073                | _ => (write "\tAddIcon \"";
1074                        write icon;
1075                        write "\"";
1076                        app (fn pat => (write " "; write pat)) pats;
1077                        write "\n"))
1078
1079 val () = Env.action_one "indexOptions"
1080          ("options", Env.list autoindex_option)
1081          (fn opts =>
1082              case opts of
1083                  [] => ()
1084                | _ => (write "\tIndexOptions";
1085                        app (fn (opt, arg) =>
1086                                (write " ";
1087                                 write opt;
1088                                 Option.app (fn arg =>
1089                                                (write "="; write arg)) arg)) opts;
1090                        write "\n"))
1091
1092 val () = Env.action_one "indexIgnore"
1093          ("patterns", Env.list Env.string)
1094          (fn pats =>
1095              case pats of
1096                  [] => ()
1097                | _ => (write "\tIndexIgnore";
1098                        app (fn pat => (write " "; write pat)) pats;
1099                        write "\n"))
1100
1101 val () = Env.action_one "set_indexOptions"
1102          ("options", Env.list autoindex_option)
1103          (fn opts =>
1104              case opts of
1105                  [] => ()
1106                | _ => (write "\tIndexOptions";
1107                        app (fn (opt, arg) =>
1108                                (write " +";
1109                                 write opt;
1110                                 Option.app (fn arg =>
1111                                                (write "="; write arg)) arg)) opts;
1112                        write "\n"))
1113
1114 val () = Env.action_one "unset_indexOptions"
1115          ("options", Env.list autoindex_option)
1116          (fn opts =>
1117              case opts of
1118                  [] => ()
1119                | _ => (write "\tIndexOptions";
1120                        app (fn (opt, _) =>
1121                                (write " -";
1122                                 write opt)) opts;
1123                        write "\n"))
1124
1125 val () = Env.action_one "headerName"
1126          ("name", Env.string)
1127          (fn name => (write "\tHeaderName ";
1128                       write name;
1129                       write "\n"))
1130
1131 val () = Env.action_one "readmeName"
1132          ("name", Env.string)
1133          (fn name => (write "\tReadmeName ";
1134                       write name;
1135                       write "\n"))
1136
1137 val () = Env.action_two "setEnv"
1138          ("key", Env.string, "value", Env.string)
1139          (fn (key, value) => (write "\tSetEnv \"";
1140                               write key;
1141                               write "\" \"";
1142                               write (String.translate (fn #"\"" => "\\\""
1143                                                         | ch => str ch) value);
1144                               write "\"\n"))
1145
1146 val () = Env.action_one "diskCache"
1147          ("path", Env.string)
1148          (fn path => (write "\tCacheEnable disk \"";
1149                       write path;
1150                       write "\"\n"))
1151
1152 val () = Env.action_one "phpVersion"
1153          ("version", php_version)
1154          (fn version => (if version = 6
1155                          then
1156                              (* fastcgi php 5.6 since 6 doesn't exist *)
1157                              (write "\tAddHandler fcgid-script .php .phtml\n";
1158                               (* FIXME: only set kerberos wrapper of waklog is on *)
1159                               write "\n\tFcgidWrapper \"";
1160                               write (Config.Apache.fastCgiWrapperOf (Domain.getUser ()));
1161                               write " ";
1162                               write Config.Apache.phpFastCgiWrapper;
1163                               write "\" .php .phtml\n")
1164                          else
1165                              (write "\tAddHandler x-httpd-php";
1166                               write (Int.toString version);
1167                               write " .php .phtml\n")))
1168
1169 val () = Env.action_two "addType"
1170          ("mime type", Env.string, "extension", Env.string)
1171          (fn (mt, ext) => (write "\tAddType ";
1172                            write mt;
1173                            write " ";
1174                            write ext;
1175                            write "\n"))
1176
1177 val filter = fn (EVar "includes", _) => SOME "INCLUDES"
1178               | (EVar "deflate", _) => SOME "DEFLATE"
1179               | _ => NONE
1180
1181 val () = Env.action_two "addOutputFilter"
1182          ("filters", Env.list filter, "extensions", Env.list Env.string)
1183          (fn (f :: fs, exts as (_ :: _)) =>
1184              (write "\tAddOutputFilter ";
1185               write f;
1186               app (fn f => (write ";"; write f)) fs;
1187               app (fn ext => (write " "; write ext)) exts;
1188               write "\n")
1189            | _ => ())
1190
1191 val () = Env.action_one "sslCertificateChainFile"
1192          ("ssl_cacert_path", Env.string)
1193          (fn cacert =>
1194              if !sslEnabled then
1195                  (write "\tSSLCertificateChainFile \"";
1196                   write cacert;
1197                   write "\"\n")
1198              else
1199                  print "WARNING: Skipped sslCertificateChainFile because this isn't an SSL vhost.\n")
1200
1201 val () = Domain.registerResetLocal (fn () =>
1202                                        ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.Apache.confDir ^ "/*")))
1203
1204 val () = Domain.registerDescriber (Domain.considerAll
1205                                    [Domain.Extension {extension = "vhost",
1206                                                       heading = fn host => "Web vhost " ^ host ^ ":"},
1207                                     Domain.Extension {extension = "vhost_ssl",
1208                                                       heading = fn host => "SSL web vhost " ^ host ^ ":"}])
1209
1210 val () = Env.action_one "allowEncodedSlashes"
1211          ("enable", Env.bool)
1212          (fn enable => (write "\tAllowEncodedSlashes ";
1213                       write (if enable then "NoDecode" else "Off");
1214                       write "\n"))
1215 val () = Env.action_none "testNoHtaccess"
1216          (fn path => write "\tAllowOverride None\n")
1217
1218 fun writeWaklogUserFile () =
1219     let
1220         val users = Acl.users ()
1221         val outf = TextIO.openOut Config.Apache.waklogUserFile
1222     in
1223         app (fn user => if String.isSuffix "_admin" user then
1224                             ()
1225                         else
1226                             (TextIO.output (outf, "<Location /~");
1227                              TextIO.output (outf, user);
1228                              TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
1229                              TextIO.output (outf, user);
1230                              TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
1231                              TextIO.output (outf, user);
1232                              TextIO.output (outf, "\n</Location>\n\n"))) users;
1233         TextIO.closeOut outf
1234     end
1235
1236 val () = Domain.registerOnUsersChange writeWaklogUserFile
1237
1238 end