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 "fast_php", _) => SOME 6
 470                    | _ => NONE
 471
 472 fun vhostBody (env, makeFullHost) =
 473     let
 474         val places = Env.env (Env.list webPlace) (env, "WebPlaces")
 475
 476         val ssl = Env.env ssl (env, "SSL")
 477         val user = Env.env Env.string (env, "User")
 478         val group = Env.env Env.string (env, "Group")
 479         val docroot = Env.env Env.string (env, "DocumentRoot")
 480         val sadmin = Env.env Env.string (env, "ServerAdmin")
 481         val suexec = Env.env Env.bool (env, "SuExec")
 482         val php = Env.env php_version (env, "PhpVersion")
 483
 484         val fullHost = makeFullHost (Domain.currentDomain ())
 485         val vhostId = fullHost ^ (if Option.isSome ssl then ".ssl" else "")
 486         val confFile = fullHost ^ (if Option.isSome ssl then ".vhost_ssl" else ".vhost")
 487     in
 488         currentVhost := fullHost;
 489         currentVhostId := vhostId;
 490         sslEnabled := Option.isSome ssl;
 491
 492         rewriteEnabled := false;
 493         localRewriteEnabled := false;
 494         expiresEnabled := false;
 495         localExpiresEnabled := false;
 496         vhostFiles := map (fn (node, ip) =>
 497                               let
 498                                   val file = Domain.domainFile {node = node,
 499                                                                 name = confFile}
 500
 501                                   val ld = logDir {user = user, node = node, vhostId = vhostId}
 502                               in
 503                                   TextIO.output (file, "# Owner: ");
 504                                   TextIO.output (file, user);
 505                                   TextIO.output (file, "\n<VirtualHost ");
 506                                   TextIO.output (file, ip);
 507                                   TextIO.output (file, ":");
 508                                   TextIO.output (file, case ssl of
 509                                                            SOME _ => "443"
 510                                                          | NONE => "80");
 511                                   TextIO.output (file, ">\n");
 512                                   TextIO.output (file, "\tErrorLog ");
 513                                   TextIO.output (file, ld);
 514                                   TextIO.output (file, "/error.log\n\tCustomLog ");
 515                                   TextIO.output (file, ld);
 516                                   TextIO.output (file, "/access.log combined\n");
 517                                   TextIO.output (file, "\tServerName ");
 518                                   TextIO.output (file, fullHost);
 519                                   app
 520                                       (fn dom => (TextIO.output (file, "\n\tServerAlias ");
 521                                                   TextIO.output (file, makeFullHost dom)))
 522                                       (Domain.currentAliasDomains ());
 523
 524                                   if suexec then
 525                                       if isVersion1 node then
 526                                           (TextIO.output (file, "\n\tUser ");
 527                                            TextIO.output (file, user);
 528                                            TextIO.output (file, "\n\tGroup ");
 529                                            TextIO.output (file, group))
 530                                       else
 531                                           (TextIO.output (file, "\n\tSuexecUserGroup ");
 532                                            TextIO.output (file, user);
 533                                            TextIO.output (file, " ");
 534                                            TextIO.output (file, group))
 535                                   else
 536                                       ();
 537
 538                                   if isWaklog node then
 539                                       (TextIO.output (file, "\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
 540                                        TextIO.output (file, user);
 541                                        TextIO.output (file, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
 542                                        TextIO.output (file, user))
 543                                   else
 544                                       ();
 545
 546                                   TextIO.output (file, "\n\tDAVLockDB /var/lock/apache2/dav/");
 547                                   TextIO.output (file, user);
 548                                   TextIO.output (file, "/DAVLock");
 549
 550                                   if php = 6
 551                                   then
 552                                       (* fastcgi php 5.6, using version 6 since php6 doesn't exist *)
 553                                       (TextIO.output (file, "\n\tAddHandler fcgid-script .php .phtml");
 554                                        map (fn ext => (TextIO.output (file, "\n\tFcgidWrapper \"");
 555                                                        (* kerberos wrapper, simulates waklog+mod_cgi *)
 556                                                        if isWaklog node then
 557                                                            (TextIO.output (file, Config.Apache.fastCgiWrapperOf user);
 558                                                             TextIO.output (file, " "))
 559                                                        else
 560                                                            ();
 561                                                        TextIO.output (file, Config.Apache.phpFastCgiWrapper);
 562                                                        TextIO.output (file, "\" ");
 563                                                        TextIO.output (file, ext)))
 564                                            [".php", ".phtml"];
 565                                        ())
 566                                   else
 567                                       (TextIO.output (file, "\n\tAddHandler x-httpd-php");
 568                                        TextIO.output (file, Int.toString php);
 569                                        TextIO.output (file, " .php .phtml"));
 570                           (ld, file)
 571                               end)
 572                           places;
 573         write "\n\tDocumentRoot ";
 574         write docroot;
 575         write "\n\tServerAdmin ";
 576         write sadmin;
 577         case ssl of
 578             SOME cert =>
 579             (write "\n\tSSLEngine on\n\tSSLCertificateFile ";
 580              write cert)
 581           | NONE => ();
 582         write "\n";
 583         !pre {user = user, nodes = map #1 places, id = vhostId, hostname = fullHost};
 584         app (fn dom => !aliaser (makeFullHost dom)) (Domain.currentAliasDomains ())
 585     end
 586
 587 val () = Env.containerV_one "vhost"
 588          ("host", Env.string)
 589          (fn (env, host) => vhostBody (env, fn dom => host ^ "." ^ dom),
 590           vhostPost)
 591
 592 val () = Env.containerV_none "vhostDefault"
 593          (fn env => vhostBody (env, fn dom => dom),
 594           vhostPost)
 595
 596 val inLocal = ref false
 597
 598 val () = Env.container_one "location"
 599          ("prefix", Env.string)
 600          (fn prefix =>
 601              (write "\t<Location ";
 602               write prefix;
 603               write ">\n";
 604               inLocal := true),
 605           fn () => (write "\t</Location>\n";
 606                     inLocal := false;
 607                     localRewriteEnabled := false;
 608                     localExpiresEnabled := false))
 609
 610 val () = Env.container_one "directory"
 611          ("directory", Env.string)
 612          (fn directory =>
 613              (write "\t<Directory ";
 614               write directory;
 615               write ">\n";
 616               inLocal := true),
 617           fn () => (write "\t</Directory>\n";
 618                     inLocal := false;
 619                     localRewriteEnabled := false;
 620                     localExpiresEnabled := false))
 621
 622 val () = Env.container_one "filesMatch"
 623          ("regexp", Env.string)
 624          (fn prefix =>
 625              (write "\t<FilesMatch \"";
 626               write prefix;
 627               write "\">\n"),
 628           fn () => (write "\t</FilesMatch>\n";
 629                     localRewriteEnabled := false;
 630                     localExpiresEnabled := false))
 631
 632 fun checkRewrite () =
 633     if !inLocal then
 634         if !localRewriteEnabled then
 635             ()
 636         else
 637             (write "\tRewriteEngine on\n";
 638              localRewriteEnabled := true)
 639     else if !rewriteEnabled then
 640         ()
 641     else
 642         (write "\tRewriteEngine on\n";
 643          rewriteEnabled := true)
 644
 645 fun checkExpires () =
 646     if !inLocal then
 647         if !localExpiresEnabled then
 648             ()
 649         else
 650             (write "\tExpiresActive on\n";
 651              localExpiresEnabled := true)
 652     else if !expiresEnabled then
 653         ()
 654     else
 655         (write "\tExpiresActive on\n";
 656          expiresEnabled := true)
 657
 658 val () = Env.action_three "localProxyRewrite"
 659          ("from", Env.string, "to", Env.string, "port", Env.int)
 660          (fn (from, to, port) =>
 661              (checkRewrite ();
 662               write "\tRewriteRule\t\"";
 663               write from;
 664               write "\"\thttp://localhost:";
 665               write (Int.toString port);
 666               write "/";
 667               write to;
 668               write " [P]\n"))
 669
 670 val () = Env.action_four "expiresByType"
 671          ("mime", Env.string, "base", interval_base, "num", Env.int, "inter", interval)
 672          (fn (mime, base, num, inter) =>
 673              (checkExpires ();
 674               write "\tExpiresByType\t\"";
 675               write mime;
 676               write "\"\t\"";
 677               write base;
 678               write " plus ";
 679               if num < 0 then
 680                   (write "-";
 681                    write (Int.toString (~num)))
 682               else
 683                   write (Int.toString num);
 684               write " ";
 685               write inter;
 686               write "\"\n"))
 687
 688 val () = Env.action_two "proxyPass"
 689          ("from", Env.string, "to", Env.string)
 690          (fn (from, to) =>
 691                  (write "\tProxyPass\t";
 692                   write from;
 693                   write "\t";
 694                   write to;
 695                   write "\tretry=0\n"))
 696
 697 val () = Env.action_two "proxyPassReverse"
 698          ("from", Env.string, "to", Env.string)
 699          (fn (from, to) =>
 700                  (write "\tProxyPassReverse\t";
 701                   write from;
 702                   write "\t";
 703                   write to;
 704                   write "\n"))
 705
 706 val () = Env.action_one "proxyPreserveHost"
 707          ("enable", Env.bool)
 708          (fn (enable) =>
 709              (write "\tProxyPreserveHost\t";
 710               if enable then write "On" else write "Off";
 711               write "\n"))
 712
 713 val () = Env.action_three "rewriteRule"
 714          ("from", Env.string, "to", Env.string, "flags", Env.list flag)
 715          (fn (from, to, flags) =>
 716              (checkRewrite ();
 717               write "\tRewriteRule\t\"";
 718               write from;
 719               write "\"\t\"";
 720               write to;
 721               write "\"";
 722               case flags of
 723                   [] => ()
 724                 | flag::rest => (write " [";
 725                                  write flag;
 726                                  app (fn flag => (write ",";
 727                                                   write flag)) rest;
 728                                  write "]");
 729               write "\n"))
 730
 731 val () = Env.action_three "rewriteCond"
 732          ("test", Env.string, "pattern", Env.string, "flags", Env.list cond_flag)
 733          (fn (from, to, flags) =>
 734              (checkRewrite ();
 735               write "\tRewriteCond\t\"";
 736               write from;
 737               write "\"\t\"";
 738               write to;
 739               write "\"";
 740               case flags of
 741                   [] => ()
 742                 | flag::rest => (write " [";
 743                                  write flag;
 744                                  app (fn flag => (write ",";
 745                                                   write flag)) rest;
 746                                  write "]");
 747               write "\n"))
 748
 749 val () = Env.action_one "rewriteBase"
 750          ("prefix", Env.string)
 751          (fn prefix =>
 752              (checkRewrite ();
 753               write "\tRewriteBase\t\"";
 754               write prefix;
 755               write "\"\n"))
 756
 757 val () = Env.action_one "rewriteLogLevel"
 758          ("level", Env.int)
 759          (fn level =>
 760              (checkRewrite ();
 761               write "\tRewriteLog ";
 762               write' (fn x => x);
 763               write "/rewrite.log\n\tRewriteLogLevel ";
 764               write (Int.toString level);
 765               write "\n"))
 766
 767 val () = Env.action_two "alias"
 768          ("from", Env.string, "to", Env.string)
 769          (fn (from, to) =>
 770              (write "\tAlias\t";
 771               write from;
 772               write " ";
 773               write to;
 774               write "\n"))
 775
 776 val () = Env.action_two "scriptAlias"
 777          ("from", Env.string, "to", Env.string)
 778          (fn (from, to) =>
 779              (write "\tScriptAlias\t";
 780               write from;
 781               write " ";
 782               write to;
 783               write "\n"))
 784
 785 val () = Env.action_two "fastScriptAlias"
 786          ("from", Env.string, "to", Env.string)
 787          (fn (from, to) =>
 788              let
 789                  (* mod_fcgid + kerberos limit this to working with
 790                  individual fcgi programs. assume the target path is a
 791                  file and any trailing `/' is just aliasing
 792                  syntax. Directory+File on the script is used to
 793                  activate fcgid instead of Location on the alias to
 794                  limit effects (alias+location also match in inverse
 795                  order causing pernicious side-effects *)
 796                  val fcgi_path = if String.sub (to, size to - 1) = #"/"
 797                                  then
 798                                      String.substring (to, 0, size to - 1)
 799                                  else
 800                                      to
 801                  val fcgi_dir = OS.Path.dir fcgi_path
 802                  val fcgi_file = OS.Path.file fcgi_path
 803              in
 804                  write "\tAlias\t"; write from; write " "; write to;  write "\n";
 805
 806                  write "\t<Directory "; write fcgi_dir;  write ">\n";
 807                  write "\t<Files "; write fcgi_file;  write ">\n";
 808                  write "\tSetHandler fcgid-script\n";
 809
 810                  (* FIXME: only set kerberos wrapper of waklog is on *)
 811                  (* won't be trivial, since we don't have access to node here *)
 812                  write "\tFcgidWrapper \"";
 813                  write (Config.Apache.fastCgiWrapperOf (Domain.getUser ()));
 814                  write " ";
 815                  write fcgi_path;
 816                  write "\"\n";
 817
 818                  write "\t</Files>\n\t</Directory>\n"
 819              end)
 820
 821 val () = Env.action_two "errorDocument"
 822          ("code", Env.string, "handler", Env.string)
 823          (fn (code, handler) =>
 824              let
 825                  val hasSpaces = CharVector.exists Char.isSpace handler
 826
 827                  fun maybeQuote () =
 828                      if hasSpaces then
 829                          write "\""
 830                      else
 831                          ()
 832              in
 833                  write "\tErrorDocument\t";
 834                  write code;
 835                  write " ";
 836                  maybeQuote ();
 837                  write handler;
 838                  maybeQuote ();
 839                  write "\n"
 840              end)
 841
 842 val () = Env.action_one "options"
 843          ("options", Env.list apache_option)
 844          (fn opts =>
 845              case opts of
 846                  [] => ()
 847                | _ => (write "\tOptions";
 848                        app (fn opt => (write " "; write opt)) opts;
 849                        write "\n"))
 850
 851 val () = Env.action_one "set_options"
 852          ("options", Env.list apache_option)
 853          (fn opts =>
 854              case opts of
 855                  [] => ()
 856                | _ => (write "\tOptions";
 857                        app (fn opt => (write " +"; write opt)) opts;
 858                        write "\n"))
 859
 860 val () = Env.action_one "unset_options"
 861          ("options", Env.list apache_option)
 862          (fn opts =>
 863              case opts of
 864                  [] => ()
 865                | _ => (write "\tOptions";
 866                        app (fn opt => (write " -"; write opt)) opts;
 867                        write "\n"))
 868
 869 val () = Env.action_one "cgiExtension"
 870          ("extension", Env.string)
 871          (fn ext => (write "\tAddHandler cgi-script ";
 872                      write ext;
 873                      write "\n"))
 874
 875 val () = Env.action_one "directoryIndex"
 876          ("filenames", Env.list Env.string)
 877          (fn opts =>
 878              (write "\tDirectoryIndex";
 879               app (fn opt => (write " "; write opt)) opts;
 880               write "\n"))
 881
 882 val () = Env.action_one "serverAliasHost"
 883          ("host", Env.string)
 884          (fn host =>
 885              (write "\tServerAlias ";
 886               write host;
 887               write "\n";
 888               !aliaser host))
 889
 890 val () = Env.action_one "serverAlias"
 891          ("host", Env.string)
 892          (fn host =>
 893              (app
 894                   (fn dom =>
 895                       let
 896                           val full = host ^ "." ^ dom
 897                       in
 898                           write "\tServerAlias ";
 899                           write full;
 900                           write "\n";
 901                           !aliaser full
 902                       end)
 903                   (Domain.currentDomains ())))
 904
 905 val () = Env.action_none "serverAliasDefault"
 906          (fn () =>
 907              (app
 908                   (fn dom =>
 909                           (write "\tServerAlias ";
 910                            write dom;
 911                            write "\n";
 912                            !aliaser dom))
 913                   (Domain.currentDomains ())))
 914
 915 val authType = fn (EVar "basic", _) => SOME "basic"
 916                 | (EVar "digest", _) => SOME "digest"
 917                 | (EVar "kerberos", _) => SOME "kerberos"
 918                 | _ => NONE
 919
 920 fun allowAuthType "kerberos" = !sslEnabled
 921   | allowAuthType _ = true
 922
 923 val () = Env.action_one "authType"
 924          ("type", authType)
 925          (fn ty =>
 926              if allowAuthType ty then
 927                  (write "\tAuthType ";
 928                   write ty;
 929                   write "\n";
 930                   case ty of
 931                       "kerberos" =>
 932                       write "\tKrbServiceName HTTP\n\tKrb5Keytab /etc/keytabs/service/apache\n\tKrbMethodNegotiate on\n\tKrbMethodK5Passwd on\n\tKrbVerifyKDC on\n\tKrbAuthRealms HCOOP.NET\n\tKrbSaveCredentials on\n"
 933                     | _ => ())
 934              else
 935                  print "WARNING: Skipped Kerberos authType because this isn't an SSL vhost.\n")
 936
 937 val () = Env.action_one "authName"
 938          ("name", Env.string)
 939          (fn name =>
 940              (write "\tAuthName \"";
 941               write name;
 942               write "\"\n"))
 943
 944 val () = Env.action_one "authUserFile"
 945          ("file", Env.string)
 946          (fn name =>
 947              (write "\tAuthUserFile ";
 948               write name;
 949               write "\n"))
 950
 951 val () = Env.action_one "authGroupFile"
 952          ("file", Env.string)
 953          (fn name =>
 954              (write "\tAuthGroupFile ";
 955               write name;
 956               write "\n"))
 957
 958 val () = Env.action_none "requireValidUser"
 959          (fn () => write "\tRequire valid-user\n")
 960
 961 val () = Env.action_one "requireUser"
 962          ("users", Env.list Env.string)
 963          (fn names =>
 964              case names of
 965                  [] => ()
 966                | _ => (write "\tRequire user";
 967                        app (fn name => (write " "; write name)) names;
 968                        write "\n"))
 969
 970 val () = Env.action_one "requireGroup"
 971          ("groups", Env.list Env.string)
 972          (fn names =>
 973              case names of
 974                  [] => ()
 975                | _ => (write "\tRequire group";
 976                        app (fn name => (write " "; write name)) names;
 977                        write "\n"))
 978
 979 val () = Env.action_none "orderAllowDeny"
 980          (fn () => write "\tOrder allow,deny\n")
 981
 982 val () = Env.action_none "orderDenyAllow"
 983          (fn () => write "\tOrder deny,allow\n")
 984
 985 val () = Env.action_none "allowFromAll"
 986          (fn () => write "\tAllow from all\n")
 987
 988 val () = Env.action_one "allowFrom"
 989          ("entries", Env.list Env.string)
 990          (fn names =>
 991              case names of
 992                  [] => ()
 993                | _ => (write "\tAllow from";
 994                        app (fn name => (write " "; write name)) names;
 995                        write "\n"))
 996
 997 val () = Env.action_none "denyFromAll"
 998          (fn () => write "\tDeny from all\n")
 999
1000 val () = Env.action_one "denyFrom"
1001          ("entries", Env.list Env.string)
1002          (fn names =>
1003              case names of
1004                  [] => ()
1005                | _ => (write "\tDeny from";
1006                        app (fn name => (write " "; write name)) names;
1007                        write "\n"))
1008
1009 val () = Env.action_none "satisfyAll"
1010          (fn () => write "\tSatisfy all\n")
1011
1012 val () = Env.action_none "satisfyAny"
1013          (fn () => write "\tSatisfy any\n")
1014
1015 val () = Env.action_one "forceType"
1016          ("type", Env.string)
1017          (fn ty => (write "\tForceType ";
1018                     write ty;
1019                     write "\n"))
1020
1021 val () = Env.action_none "forceTypeOff"
1022          (fn () => write "\tForceType None\n")
1023
1024 val () = Env.action_two "action"
1025          ("what", Env.string, "how", Env.string)
1026          (fn (what, how) => (write "\tAction ";
1027                              write what;
1028                              write " ";
1029                              write how;
1030                              write "\n"))
1031
1032 val () = Env.action_one "addDefaultCharset"
1033          ("charset", Env.string)
1034          (fn ty => (write "\tAddDefaultCharset ";
1035                     write ty;
1036                     write "\n"))
1037
1038 (*val () = Env.action_one "davSvn"
1039          ("path", Env.string)
1040          (fn path => (write "\tDAV svn\n\tSVNPath ";
1041                       write path;
1042                       write "\n"))
1043
1044 val () = Env.action_one "authzSvnAccessFile"
1045          ("path", Env.string)
1046          (fn path => (write "\tAuthzSVNAccessFile ";
1047                       write path;
1048                       write "\n"))*)
1049
1050 val () = Env.action_none "davFilesystem"
1051          (fn path => write "\tDAV filesystem\n")
1052
1053 val () = Env.action_two "addDescription"
1054          ("description", Env.string, "patterns", Env.list Env.string)
1055          (fn (desc, pats) =>
1056              case pats of
1057                  [] => ()
1058                | _ => (write "\tAddDescription \"";
1059                        write (String.toString desc);
1060                        write "\"";
1061                        app (fn pat => (write " "; write pat)) pats;
1062                        write "\n"))
1063
1064 val () = Env.action_two "addIcon"
1065          ("icon", Env.string, "patterns", Env.list Env.string)
1066          (fn (icon, pats) =>
1067              case pats of
1068                  [] => ()
1069                | _ => (write "\tAddIcon \"";
1070                        write icon;
1071                        write "\"";
1072                        app (fn pat => (write " "; write pat)) pats;
1073                        write "\n"))
1074
1075 val () = Env.action_one "indexOptions"
1076          ("options", Env.list autoindex_option)
1077          (fn opts =>
1078              case opts of
1079                  [] => ()
1080                | _ => (write "\tIndexOptions";
1081                        app (fn (opt, arg) =>
1082                                (write " ";
1083                                 write opt;
1084                                 Option.app (fn arg =>
1085                                                (write "="; write arg)) arg)) opts;
1086                        write "\n"))
1087
1088 val () = Env.action_one "indexIgnore"
1089          ("patterns", Env.list Env.string)
1090          (fn pats =>
1091              case pats of
1092                  [] => ()
1093                | _ => (write "\tIndexIgnore";
1094                        app (fn pat => (write " "; write pat)) pats;
1095                        write "\n"))
1096
1097 val () = Env.action_one "set_indexOptions"
1098          ("options", Env.list autoindex_option)
1099          (fn opts =>
1100              case opts of
1101                  [] => ()
1102                | _ => (write "\tIndexOptions";
1103                        app (fn (opt, arg) =>
1104                                (write " +";
1105                                 write opt;
1106                                 Option.app (fn arg =>
1107                                                (write "="; write arg)) arg)) opts;
1108                        write "\n"))
1109
1110 val () = Env.action_one "unset_indexOptions"
1111          ("options", Env.list autoindex_option)
1112          (fn opts =>
1113              case opts of
1114                  [] => ()
1115                | _ => (write "\tIndexOptions";
1116                        app (fn (opt, _) =>
1117                                (write " -";
1118                                 write opt)) opts;
1119                        write "\n"))
1120
1121 val () = Env.action_one "headerName"
1122          ("name", Env.string)
1123          (fn name => (write "\tHeaderName ";
1124                       write name;
1125                       write "\n"))
1126
1127 val () = Env.action_one "readmeName"
1128          ("name", Env.string)
1129          (fn name => (write "\tReadmeName ";
1130                       write name;
1131                       write "\n"))
1132
1133 val () = Env.action_two "setEnv"
1134          ("key", Env.string, "value", Env.string)
1135          (fn (key, value) => (write "\tSetEnv \"";
1136                               write key;
1137                               write "\" \"";
1138                               write (String.translate (fn #"\"" => "\\\""
1139                                                         | ch => str ch) value);
1140                               write "\"\n"))
1141
1142 val () = Env.action_one "diskCache"
1143          ("path", Env.string)
1144          (fn path => (write "\tCacheEnable disk \"";
1145                       write path;
1146                       write "\"\n"))
1147
1148 val () = Env.action_one "phpVersion"
1149          ("version", php_version)
1150          (fn version => (if version = 6
1151                          then
1152                              (* fastcgi php 5.6 since 6 doesn't exist *)
1153                              (write "\tAddHandler fcgid-script .php .phtml\n";
1154                               (* FIXME: only set kerberos wrapper of waklog is on *)
1155                               (* won't be trivial, since we don't have access to node here *)
1156                               write "\n\tFcgidWrapper \"";
1157                               write (Config.Apache.fastCgiWrapperOf (Domain.getUser ()));
1158                               write " ";
1159                               write Config.Apache.phpFastCgiWrapper;
1160                               write "\" .php .phtml\n")
1161                          else
1162                              (write "\tAddHandler x-httpd-php";
1163                               write (Int.toString version);
1164                               write " .php .phtml\n")))
1165
1166 val () = Env.action_two "addType"
1167          ("mime type", Env.string, "extension", Env.string)
1168          (fn (mt, ext) => (write "\tAddType ";
1169                            write mt;
1170                            write " ";
1171                            write ext;
1172                            write "\n"))
1173
1174 val filter = fn (EVar "includes", _) => SOME "INCLUDES"
1175               | (EVar "deflate", _) => SOME "DEFLATE"
1176               | _ => NONE
1177
1178 val () = Env.action_two "addOutputFilter"
1179          ("filters", Env.list filter, "extensions", Env.list Env.string)
1180          (fn (f :: fs, exts as (_ :: _)) =>
1181              (write "\tAddOutputFilter ";
1182               write f;
1183               app (fn f => (write ";"; write f)) fs;
1184               app (fn ext => (write " "; write ext)) exts;
1185               write "\n")
1186            | _ => ())
1187
1188 val () = Env.action_one "sslCertificateChainFile"
1189          ("ssl_cacert_path", Env.string)
1190          (fn cacert =>
1191              if !sslEnabled then
1192                  (write "\tSSLCertificateChainFile \"";
1193                   write cacert;
1194                   write "\"\n")
1195              else
1196                  print "WARNING: Skipped sslCertificateChainFile because this isn't an SSL vhost.\n")
1197
1198 val () = Domain.registerResetLocal (fn () =>
1199                                        ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.Apache.confDir ^ "/*")))
1200
1201 val () = Domain.registerDescriber (Domain.considerAll
1202                                    [Domain.Extension {extension = "vhost",
1203                                                       heading = fn host => "Web vhost " ^ host ^ ":"},
1204                                     Domain.Extension {extension = "vhost_ssl",
1205                                                       heading = fn host => "SSL web vhost " ^ host ^ ":"}])
1206
1207 val () = Env.action_one "allowEncodedSlashes"
1208          ("enable", Env.bool)
1209          (fn enable => (write "\tAllowEncodedSlashes ";
1210                       write (if enable then "NoDecode" else "Off");
1211                       write "\n"))
1212 val () = Env.action_none "testNoHtaccess"
1213          (fn path => write "\tAllowOverride None\n")
1214
1215 fun writeWaklogUserFile () =
1216     let
1217         val users = Acl.users ()
1218         val outf = TextIO.openOut Config.Apache.waklogUserFile
1219     in
1220         app (fn user => if String.isSuffix "_admin" user then
1221                             ()
1222                         else
1223                             (TextIO.output (outf, "<Location /~");
1224                              TextIO.output (outf, user);
1225                              TextIO.output (outf, ">\n\tWaklogEnabled on\n\tWaklogLocationPrincipal ");
1226                              TextIO.output (outf, user);
1227                              TextIO.output (outf, "/daemon@HCOOP.NET /etc/keytabs/user.daemon/");
1228                              TextIO.output (outf, user);
1229                              TextIO.output (outf, "\n</Location>\n\n"))) users;
1230         TextIO.closeOut outf
1231     end
1232
1233 val () = Domain.registerOnUsersChange writeWaklogUserFile
1234
1235 end