size s > 0 andalso size s < 100
andalso List.all validHost (String.fields (fn ch => ch = #".") s)
+fun validNode s = List.exists (fn s' => s = s') Config.nodes
+
val _ = Env.type_one "ip"
Env.string
validIp
Env.string
validDomain
+val _ = Env.type_one "node"
+ Env.string
+ validNode
+
open Ast
val dl = ErrorMsg.dummyLoc
dl,
[nsD, serialD, refD, retD, expD, minD])
+val masterD = (EApp ((EVar "internalMaster", dl),
+ (EString Config.defaultNode, dl)),
+ dl)
+
val _ = Main.registerDefault ("DNS",
(TBase "dnsKind", dl),
- (EApp ((EVar "master", dl),
- soaD), dl))
+ (multiApp ((EVar "useDns", dl),
+ dl,
+ [soaD, masterD, (EList [], dl)])))
val _ = Main.registerDefault ("TTL",
(TBase "int", dl),
| _ => NONE)
| _ => NONE
+datatype master =
+ ExternalMaster of string
+ | InternalMaster of string
+
+val master = fn (EApp ((EVar "externalMaster", _), e), _) => Option.map ExternalMaster (Env.string e)
+ | (EApp ((EVar "internalMaster", _), e), _) => Option.map InternalMaster (Env.string e)
+ | _ => NONE
+
datatype dnsKind =
- Master of soa
- | Slave of soa
+ UseDns of {soa : soa,
+ master : master,
+ slaves : string list}
| NoDns
-val dnsKind = fn (EApp ((EVar "master", _), e), _) => Option.map Master (soa e)
- | (EApp ((EVar "slave", _), e), _) => Option.map Slave (soa e)
- | (EVar "noDns", _) => SOME NoDns
+val dnsKind = fn (EApp ((EApp ((EApp
+ ((EVar "useDns", _), sa), _),
+ mstr), _),
+ slaves), _) =>
+ (case (soa sa, master mstr, Env.list Env.string slaves) of
+ (SOME sa, SOME mstr, SOME slaves) =>
+ SOME (UseDns {soa = sa,
+ master = mstr,
+ slaves = slaves})
+ | _ => NONE)
| _ => NONE
val befores = ref (fn (_ : string) => ())
end
val current = ref ""
-val currentPath = ref ""
+val currentPath = ref (fn (_ : string) => "")
val scratch = ref ""
fun currentDomain () = !current
-fun domainFile name = TextIO.openOut (!currentPath ^ name)
+fun domainFile {node, name} = ((*print ("Opening " ^ !currentPath node ^ name ^ "\n");*)
+ TextIO.openOut (!currentPath node ^ name))
fun getPath domain =
let
val elems = foldr (fn (piece, elems) =>
let
val elems = piece :: elems
- val path = String.concatWith "/" (Config.resultRoot :: rev elems)
- val tmpPath = String.concatWith "/" (Config.tmpDir :: rev elems)
- in
- (if Posix.FileSys.ST.isDir
- (Posix.FileSys.stat path) then
- ()
- else
- (OS.FileSys.remove path;
- OS.FileSys.mkDir path))
- handle OS.SysErr _ => OS.FileSys.mkDir path;
-
- (if Posix.FileSys.ST.isDir
- (Posix.FileSys.stat tmpPath) then
- ()
- else
- (OS.FileSys.remove tmpPath;
- OS.FileSys.mkDir tmpPath))
- handle OS.SysErr _ => OS.FileSys.mkDir tmpPath;
+ fun doNode node =
+ let
+ val path = String.concatWith "/"
+ (Config.resultRoot :: node :: rev elems)
+ val tmpPath = String.concatWith "/"
+ (Config.tmpDir :: node :: rev elems)
+ in
+ (if Posix.FileSys.ST.isDir
+ (Posix.FileSys.stat path) then
+ ()
+ else
+ (OS.FileSys.remove path;
+ OS.FileSys.mkDir path))
+ handle OS.SysErr _ => OS.FileSys.mkDir path;
+
+ (if Posix.FileSys.ST.isDir
+ (Posix.FileSys.stat tmpPath) then
+ ()
+ else
+ (OS.FileSys.remove tmpPath;
+ OS.FileSys.mkDir tmpPath))
+ handle OS.SysErr _ => OS.FileSys.mkDir tmpPath
+ end
+ in
+ app doNode Config.nodes;
elems
end) [] toks
in
- fn root => String.concatWith "/" (root :: rev ("" :: elems))
+ fn (root, site) => String.concatWith "/" (root :: site :: rev ("" :: elems))
end
datatype file_action' =
| Delete' of string
| Modify' of {src : string, dst : string}
-fun findDiffs dom =
+fun findDiffs (site, dom, acts) =
let
- val realPath = getPath dom Config.resultRoot
- val tmpPath = !currentPath
+ 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
if Slave.shell [Config.diff, " ", real, " ", tmp] then
loopReal acts
else
- loopReal (Modify' {src = tmp, dst = real} :: acts)
+ loopReal ((site, dom, realPath, Modify' {src = tmp, dst = real}) :: acts)
else
- loopReal (Delete' real :: acts)
+ loopReal ((site, dom, realPath, Delete' real) :: acts)
end
- val acts = loopReal []
+ val acts = loopReal acts
val dir = Posix.FileSys.opendir tmpPath
else if Posix.FileSys.access (real, []) then
loopTmp acts
else
- loopTmp (Add' {src = tmp, dst = real} :: acts)
+ loopTmp ((site, dom, realPath, Add' {src = tmp, dst = real}) :: acts)
end
val acts = loopTmp acts
acts
end
+fun findAllDiffs () =
+ 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 (site, dom, diffs))
+ end
+ else
+ diffs)
+ end
+ in
+ loop diffs
+ before Posix.FileSys.closedir dir
+ end
+ in
+ 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 _ = Env.containerV_one "domain"
("domain", Env.string)
(fn (evs, dom) =>
val kind = Env.env dnsKind (evs, "DNS")
val ttl = Env.env Env.int (evs, "TTL")
- val path = getPath dom Config.tmpDir
+ val path = getPath dom
val () = (current := dom;
- currentPath := path;
- !befores dom)
+ currentPath := (fn site => path (Config.tmpDir, site)))
- fun saveSoa (kind, soa : soa) =
+ fun saveSoa (kind, soa : soa) node =
let
- val outf = domainFile "soa"
+ val outf = domainFile {node = node, name = "soa"}
in
TextIO.output (outf, kind);
TextIO.output (outf, "\n");
TextIO.closeOut outf
end
- fun saveNamed (kind, soa : soa) =
+ fun saveNamed (kind, soa : soa) node =
let
- val outf = domainFile "named.conf"
+ val outf = domainFile {node = node, name = "named.conf"}
in
TextIO.output (outf, "\nzone \"");
TextIO.output (outf, dom);
fun saveBoth ks = (saveSoa ks; saveNamed ks)
in
case kind of
- NoDns => ()
- | Master soa => saveBoth ("master", soa)
- | Slave soa => saveBoth ("slave", soa)
+ NoDns => masterNode := NONE
+ | UseDns dns =>
+ (app (saveSoa ("slave", #soa dns)) (#slaves dns);
+ app (saveNamed ("slave", #soa dns)) (#slaves dns);
+ case #master dns of
+ InternalMaster node =>
+ (masterNode := SOME node;
+ saveSoa ("master", #soa dns) node;
+ saveNamed ("master", #soa dns) node)
+ | _ => masterNode := NONE);
+ !befores dom
end,
- fn () =>
- let
- val dom = !current
- val () = !afters dom
-
- val diffs = findDiffs dom
-
- val dir = getPath dom Config.resultRoot
+ fn () => !afters (!current))
+
+val () = Env.registerPre (fn () => (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}))
+ Config.nodes;
+ app (fn node => OS.FileSys.mkDir
+ (OS.Path.joinDirFile {dir = Config.resultRoot,
+ file = node})
+ handle OS.SysErr _ => ())
+ Config.nodes))
+
+val () = Env.registerPost (fn () =>
+ let
+ val diffs = findAllDiffs ()
- val diffs = map (fn Add' {src, dst} =>
- (Slave.shellF ([Config.cp, " ", src, " ", dst],
- fn cl => "Copy failed: " ^ cl);
+ 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})
- | Delete' dst =>
- (OS.FileSys.remove dst
- handle OS.SysErr _ =>
- ErrorMsg.error NONE ("Delete failed for " ^ dst);
+ 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,
domain = dom,
dir = dir,
- file = dst})
- | Modify' {src, dst} =>
- (Slave.shellF ([Config.cp, " ", src, " ", dst],
- fn cl => "Copy failed: " ^ cl);
+ 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
- Slave.handleChanges diffs;
- ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, "/*"],
- fn cl => "Temp file cleanup failed: " ^ cl))
- end)
+ file = dst}))) diffs
+ in
+ if !ErrorMsg.anyErrors then
+ ()
+ else
+ Slave.handleChanges (map #2 diffs);
+ ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""],
+ fn cl => "Temp file cleanup failed: " ^ cl))
+ end)