+ fn (root, site) => String.concatWith "/" (root :: site :: rev ("" :: elems))
+ end
+
+datatype file_action' =
+ Add' of {src : string, dst : string}
+ | Delete' of string
+ | Modify' of {src : string, dst : string}
+
+fun findDiffs (prefixes, site, dom, acts) =
+ let
+ val gp = getPath dom
+ val realPath = gp (Config.resultRoot, site)
+ val tmpPath = gp (Config.tmpDir, site)
+
+ (*val _ = print ("getDiffs(" ^ site ^ ", " ^ dom ^ ")... " ^ realPath ^ "; " ^ tmpPath ^ "\n")*)
+
+ val dir = Posix.FileSys.opendir realPath
+
+ fun loopReal acts =
+ case Posix.FileSys.readdir dir of
+ NONE => (Posix.FileSys.closedir dir;
+ acts)
+ | SOME fname =>
+ let
+ val real = OS.Path.joinDirFile {dir = realPath,
+ file = fname}
+ val tmp = OS.Path.joinDirFile {dir = tmpPath,
+ file = fname}
+ in
+ if Posix.FileSys.ST.isDir (Posix.FileSys.stat real) then
+ loopReal acts
+ else if Posix.FileSys.access (tmp, []) then
+ if Slave.shell [Config.diff, " ", real, " ", tmp] then
+ loopReal acts
+ else
+ loopReal ((site, dom, realPath, Modify' {src = tmp, dst = real}) :: acts)
+ else if List.exists (fn prefix => String.isPrefix prefix real) prefixes then
+ loopReal ((site, dom, realPath, Delete' real) :: acts)
+ else
+ loopReal acts
+ end
+
+ val acts = loopReal acts
+
+ val dir = Posix.FileSys.opendir tmpPath
+
+ fun loopTmp acts =
+ case Posix.FileSys.readdir dir of
+ NONE => (Posix.FileSys.closedir dir;
+ acts)
+ | SOME fname =>
+ let
+ val real = OS.Path.joinDirFile {dir = realPath,
+ file = fname}
+ val tmp = OS.Path.joinDirFile {dir = tmpPath,
+ file = fname}
+ in
+ if Posix.FileSys.ST.isDir (Posix.FileSys.stat tmp) then
+ loopTmp acts
+ else if Posix.FileSys.access (real, []) then
+ loopTmp acts
+ else
+ loopTmp ((site, dom, realPath, Add' {src = tmp, dst = real}) :: acts)
+ end
+
+ val acts = loopTmp acts
+ in
+ acts
+ end
+
+fun findAllDiffs prefixes =
+ let
+ val dir = Posix.FileSys.opendir Config.tmpDir
+ val len = length (String.fields (fn ch => ch = #"/") Config.tmpDir) + 1
+
+ fun exploreSites diffs =
+ case Posix.FileSys.readdir dir of
+ NONE => diffs
+ | SOME site =>
+ let
+ fun explore (dname, diffs) =
+ let
+ val dir = Posix.FileSys.opendir dname
+
+ fun loop diffs =
+ case Posix.FileSys.readdir dir of
+ NONE => diffs
+ | SOME name =>
+ let
+ val fname = OS.Path.joinDirFile {dir = dname,
+ file = name}
+ in
+ loop (if Posix.FileSys.ST.isDir (Posix.FileSys.stat fname) then
+ let
+ val dom = String.fields (fn ch => ch = #"/") fname
+ val dom = List.drop (dom, len)
+ val dom = String.concatWith "." (rev dom)
+
+ val dname' = OS.Path.joinDirFile {dir = dname,
+ file = name}
+ in
+ explore (dname',
+ findDiffs (prefixes, site, dom, diffs))
+ end
+ else
+ diffs)
+ end
+ in
+ loop diffs
+ before Posix.FileSys.closedir dir
+ end
+ in
+ exploreSites (explore (OS.Path.joinDirFile {dir = Config.tmpDir,
+ file = site}, diffs))
+ end
+ in
+ exploreSites []
+ before Posix.FileSys.closedir dir
+ end
+
+val masterNode : string option ref = ref NONE
+fun dnsMaster () = !masterNode
+
+val seenDomains : string list ref = ref []
+
+val _ = Env.containerV_one "domain"
+ ("domain", Env.string)
+ (fn (evs, dom) =>
+ let
+ val () = seenDomains := dom :: !seenDomains
+
+ val kind = Env.env dnsKind (evs, "DNS")
+ val ttl = Env.env Env.int (evs, "TTL")
+ val aliases = Env.env (Env.list Env.string) (evs, "Aliases")
+
+ val path = getPath dom
+
+ val () = (current := dom;
+ currentsAli := Slave.remove (Slave.removeDups aliases, dom);
+ currentPath := (fn site => path (Config.tmpDir, site));
+ currentPathAli := (fn (dom, site) => getPath dom (Config.tmpDir, site)))
+
+ fun saveSoa (kind, soa : soa) node =
+ let
+ val {write, writeDom, close} = domainsFile {node = node, name = "soa.conf"}
+ in
+ write kind;
+ write "\n";
+ write (Int.toString ttl);
+ write "\n";
+ write (#ns soa);
+ write "\n";
+ case #serial soa of
+ NONE => ()
+ | SOME n => write (Int.toString n);
+ write "\n";
+ write (Int.toString (#ref soa));
+ write "\n";
+ write (Int.toString (#ret soa));
+ write "\n";
+ write (Int.toString (#exp soa));
+ write "\n";
+ write (Int.toString (#min soa));
+ write "\n";
+ close ()
+ end
+
+ fun saveNamed (kind, soa : soa, masterIp, slaveIps) node =
+ if dom = "localhost" then
+ ()
+ else let
+ val {write, writeDom, close} = domainsFile {node = node, name = "named.conf"}
+ in
+ write "\nzone \"";
+ writeDom ();
+ write "\" {\n\ttype ";
+ write kind;
+ write ";\n\tfile \"";
+ write Config.Bind.zonePath_real;
+ write "/";
+ writeDom ();
+ write ".zone\";\n";
+ case kind of
+ "master" => (write "\tallow-transfer {\n";
+ app (fn ip => (write "\t\t";
+ write ip;
+ write ";\n")) slaveIps;
+ write "\t};\n")
+ | _ => (write "\tmasters { ";
+ write masterIp;
+ write "; };\n";
+ write "// Updated: ";
+ write (Time.toString (Time.now ()));
+ write "\n");
+ write "};\n";
+ close ()
+ end
+ in
+ case kind of
+ NoDns => masterNode := NONE
+ | UseDns dns =>
+ let
+ val masterIp =
+ case #master dns of
+ InternalMaster node => nodeIp node
+ | ExternalMaster ip => ip
+
+ val slaveIps = map nodeIp (#slaves dns)
+ in
+ app (saveSoa ("slave", #soa dns)) (#slaves dns);
+ app (saveNamed ("slave", #soa dns, masterIp, slaveIps)) (#slaves dns);
+ case #master dns of
+ InternalMaster node =>
+ (masterNode := SOME node;
+ saveSoa ("master", #soa dns) node;
+ saveNamed ("master", #soa dns, masterIp, slaveIps) node)
+ | _ => masterNode := NONE
+ end;
+ !befores dom
+ end,
+ fn () => !afters (!current))
+
+val () = Env.registerPre (fn () => (seenDomains := [];
+ ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""],
+ fn cl => "Temp file cleanup failed: " ^ cl));
+ OS.FileSys.mkDir Config.tmpDir;
+ app (fn node => OS.FileSys.mkDir
+ (OS.Path.joinDirFile {dir = Config.tmpDir,
+ file = node}))
+ nodes;
+ app (fn node => OS.FileSys.mkDir
+ (OS.Path.joinDirFile {dir = Config.resultRoot,
+ file = node})
+ handle OS.SysErr _ => ())
+ nodes))
+
+fun handleSite (site, files) =
+ let
+
+ in
+ print ("New configuration for node " ^ site ^ "\n");
+ if site = Config.defaultNode then
+ Slave.handleChanges files
+ else let
+ val bio = OpenSSL.connect true (valOf (!ssl_context),
+ nodeIp site
+ ^ ":"
+ ^ Int.toString Config.slavePort)
+ in
+ app (fn file => Msg.send (bio, MsgFile file)) files;
+ Msg.send (bio, MsgDoFiles);
+ case Msg.recv bio of
+ NONE => print "Slave closed connection unexpectedly\n"
+ | SOME m =>
+ case m of
+ MsgOk => print ("Slave " ^ site ^ " finished\n")
+ | MsgError s => print ("Slave " ^ site
+ ^ " returned error: " ^
+ s ^ "\n")
+ | _ => print ("Slave " ^ site
+ ^ " returned unexpected command\n");
+ OpenSSL.close bio
+ end
+ end
+
+val () = Env.registerPost (fn () =>
+ let
+ val prefixes = List.concat
+ (List.map (fn dom =>
+ let
+ val pieces = String.tokens (fn ch => ch = #".") dom
+ val path = String.concatWith "/" (rev pieces)
+ in
+ List.map (fn node =>
+ Config.resultRoot ^ "/" ^ node ^ "/" ^ path ^ "/")
+ nodes
+ end) (!seenDomains))
+
+ val diffs = findAllDiffs prefixes
+
+ val diffs = map (fn (site, dom, dir, Add' {src, dst}) =>
+ (Slave.shellF ([Config.cp, " ", src, " ", dst],
+ fn cl => "Copy failed: " ^ cl);
+ (site,
+ {action = Slave.Add,
+ domain = dom,
+ dir = dir,
+ file = dst}))
+ | (site, dom, dir, Delete' dst) =>
+ (OS.FileSys.remove dst
+ handle OS.SysErr _ =>
+ ErrorMsg.error NONE ("Delete failed for " ^ dst);
+ (site,
+ {action = Slave.Delete true,
+ domain = dom,
+ dir = dir,
+ file = dst}))
+ | (site, dom, dir, Modify' {src, dst}) =>
+ (Slave.shellF ([Config.cp, " ", src, " ", dst],
+ fn cl => "Copy failed: " ^ cl);
+ (site,
+ {action = Slave.Modify,
+ domain = dom,
+ dir = dir,
+ file = dst}))) diffs
+ in
+ if !ErrorMsg.anyErrors then
+ ()
+ else let
+ val changed = foldl (fn ((site, file), changed) =>
+ let
+ val ls = case SM.find (changed, site) of
+ NONE => []
+ | SOME ls => ls
+ in
+ SM.insert (changed, site, file :: ls)
+ end) SM.empty diffs
+ in
+ SM.appi handleSite changed
+ end;
+ ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""],
+ fn cl => "Temp file cleanup failed: " ^ cl))
+ end)
+
+fun hasPriv priv = Acl.query {user = getUser (), class = "priv", value = "all"}
+ orelse Acl.query {user = getUser (), class = "priv", value = priv}
+
+val _ = Env.type_one "dns_node"
+ Env.string
+ (fn node =>
+ List.exists (fn x => x = node) Config.dnsNodes_all
+ orelse (hasPriv "dns"
+ andalso List.exists (fn x => x = node) Config.dnsNodes_admin))
+
+val _ = Env.type_one "mail_node"
+ Env.string
+ (fn node =>
+ List.exists (fn x => x = node) Config.mailNodes_all
+ orelse (hasPriv "mail"
+ andalso List.exists (fn x => x = node) Config.mailNodes_admin))
+
+fun rmdom' delete resultRoot doms =
+ let
+ fun doNode (node, _) =
+ let
+ val dname = OS.Path.joinDirFile {dir = resultRoot,
+ file = node}
+
+ fun doDom (dom, actions) =
+ let
+ val domPath = String.concatWith "/" (rev (String.fields (fn ch => ch = #".") dom))
+ val dname = OS.Path.concat (dname, domPath)
+
+ fun visitDom (dom, dname, actions) =
+ let
+ val dir = Posix.FileSys.opendir dname
+
+ fun loop actions =
+ case Posix.FileSys.readdir dir of
+ NONE => actions
+ | SOME fname =>
+ let
+ val fnameFull = OS.Path.joinDirFile {dir = dname,
+ file = fname}
+ in
+ if Posix.FileSys.ST.isDir (Posix.FileSys.stat fnameFull) then
+ loop (visitDom (fname ^ "." ^ dom,
+ fnameFull,
+ actions))
+ else
+ loop ({action = Slave.Delete delete,
+ domain = dom,
+ dir = dname,
+ file = fnameFull} :: actions)
+ end
+ in
+ loop actions
+ before Posix.FileSys.closedir dir
+ end
+ handle OS.SysErr (s, _) =>
+ (print ("Warning: System error deleting domain " ^ dom ^ " on " ^ node ^ ": " ^ s ^ "\n");
+ actions)
+ in
+ visitDom (dom, dname, actions)
+ end
+
+ val actions = foldl doDom [] doms
+ in
+ handleSite (node, actions)
+ end
+ handle IO.Io _ => print ("Warning: IO error deleting domains on " ^ node ^ ".\n")
+
+ fun cleanupNode (node, _) =
+ let
+ fun doDom dom =
+ let
+ val domPath = String.concatWith "/" (rev (String.fields (fn ch => ch = #".") dom))
+ val dname = OS.Path.joinDirFile {dir = resultRoot,
+ file = node}
+ val dname = OS.Path.concat (dname, domPath)
+ in
+ if delete then
+ ignore (OS.Process.system (Config.rm ^ " -rf " ^ dname))
+ else
+ ()
+ end
+ in
+ app doDom doms
+ end
+ in
+ app doNode Config.nodeIps;
+ app cleanupNode Config.nodeIps
+ end
+
+val rmdom = rmdom' true Config.resultRoot
+val rmdom' = rmdom' false
+
+fun homedirOf uname =
+ Posix.SysDB.Passwd.home (Posix.SysDB.getpwnam uname)
+
+fun homedir () = homedirOf (getUser ())
+
+type subject = {node : string, domain : string}
+
+val describers : (subject -> string) list ref = ref []
+
+fun registerDescriber f = describers := f :: !describers
+
+fun describeOne arg = String.concat (map (fn f => f arg) (rev (!describers)))
+
+val line = "--------------------------------------------------------------\n"
+val dline = "==============================================================\n"
+
+fun describe dom =
+ String.concat (List.mapPartial
+ (fn node =>
+ case describeOne {node = node, domain = dom} of
+ "" => NONE
+ | s =>
+ SOME (String.concat [dline, "Node ", node, "\n", dline, "\n", s]))
+ nodes)
+
+datatype description =
+ Filename of { filename : string, heading : string, showEmpty : bool }
+ | Extension of { extension : string, heading : string -> string }
+
+fun considerAll ds {node, domain} =
+ let
+ val ds = map (fn d => (d, ref [])) ds
+
+ val path = Config.resultRoot
+ val jdf = OS.Path.joinDirFile
+ val path = jdf {dir = path, file = node}
+ val path = foldr (fn (more, path) => jdf {dir = path, file = more})
+ path (String.tokens (fn ch => ch = #".") domain)
+ in
+ if Posix.FileSys.access (path, []) then
+ let
+ val dir = Posix.FileSys.opendir path
+
+ fun loop () =
+ case Posix.FileSys.readdir dir of
+ NONE => ()
+ | SOME fname =>
+ (app (fn (d, entries) =>
+ let
+ fun readFile showEmpty entries' =
+ let
+ val fname = OS.Path.joinDirFile {dir = path,
+ file = fname}
+
+ val inf = TextIO.openIn fname
+
+ fun loop (seenOne, entries') =
+ case TextIO.inputLine inf of
+ NONE => if seenOne orelse showEmpty then
+ "\n" :: entries'
+ else
+ !entries
+ | SOME line => loop (true, line :: entries')
+ in
+ loop (false, entries')
+ before TextIO.closeIn inf
+ end
+ in
+ case d of
+ Filename {filename, heading, showEmpty} =>
+ if fname = filename then
+ entries := readFile showEmpty ("\n" :: line :: "\n" :: heading :: line :: !entries)
+ else
+ ()
+ | Extension {extension, heading} =>
+ let
+ val {base, ext} = OS.Path.splitBaseExt fname
+ in
+ case ext of
+ NONE => ()
+ | SOME extension' =>
+ if extension' = extension then
+ entries := readFile true ("\n" :: line :: "\n" :: heading base :: line :: !entries)
+ else
+ ()
+ end
+ end) ds;
+ loop ())
+ in
+ loop ();
+ Posix.FileSys.closedir dir;
+ String.concat (List.concat (map (fn (_, entries) => rev (!entries)) ds))
+ end
+ else
+ ""
+ end
+
+val () = registerDescriber (considerAll [Filename {filename = "soa.conf",
+ heading = "DNS SOA:",
+ showEmpty = false}])
+
+val () = Env.registerAction ("domainHost",
+ fn (env, [(EString host, _)]) =>
+ SM.insert (env, "Hostname",
+ (EString (host ^ "." ^ currentDomain ()), dl))
+ | (_, args) => Env.badArgs ("domainHost", args))
+
+val ouc = ref (fn () => ())
+
+fun registerOnUsersChange f =
+ let
+ val f' = !ouc
+ in
+ ouc := (fn () => (f' (); f ()))