(* HCoop Domtool (http://hcoop.sourceforge.net/)
- * Copyright (c) 2006, Adam Chlipala
+ * Copyright (c) 2006-2007, Adam Chlipala
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
structure Domain :> DOMAIN = struct
+open MsgTypes
+
structure SM = DataStructures.StringMap
+structure SS = DataStructures.StringSet
+
+val ssl_context = ref (NONE : OpenSSL.context option)
+fun set_context ctx = ssl_context := SOME ctx
-val nodes = map #2 Config.nodeIps
+val nodes = map #1 Config.nodeIps
val nodeMap = foldl (fn ((node, ip), mp) => SM.insert (mp, node, ip))
SM.empty Config.nodeIps
+fun nodeIp node = valOf (SM.find (nodeMap, node))
+
+val usr = ref ""
+fun getUser () = !usr
+val fakePrivs = ref false
+val isClient = ref false
+
+val your_doms = ref SS.empty
+fun your_domains () = !your_doms
+
+val your_usrs = ref SS.empty
+fun your_users () = !your_usrs
+
+val your_grps = ref SS.empty
+fun your_groups () = !your_grps
+
+val your_pths = ref SS.empty
+fun your_paths () = !your_pths
+
+val your_ipss = ref SS.empty
+fun your_ips () = !your_ipss
+
+val world_readable = SS.addList (SS.empty, Config.worldReadable)
+val readable_pths = ref world_readable
+fun readable_paths () = !readable_pths
+
+fun setUser user =
+ let
+ val () = usr := user
+
+ val your_paths = Acl.class {user = getUser (),
+ class = "path"}
+ in
+ fakePrivs := false;
+ your_doms := Acl.class {user = getUser (),
+ class = "domain"};
+ your_usrs := Acl.class {user = getUser (),
+ class = "user"};
+ your_grps := Acl.class {user = getUser (),
+ class = "group"};
+ your_pths := your_paths;
+ readable_pths := SS.union (your_paths, world_readable);
+ your_ipss := Acl.class {user = getUser (),
+ class = "ip"}
+ end
+
+fun declareClient () = isClient := true
+fun fakePrivileges () = if !isClient then
+ fakePrivs := true
+ else
+ raise Fail "Tried to fake privileges as non-client"
fun validIp s =
case map Int.fromString (String.fields (fn ch => ch = #".") s) of
n1 >= 0 andalso n1 < 256 andalso n2 >= 0 andalso n2 < 256 andalso n3 >= 0 andalso n3 < 256 andalso n4 >= 0 andalso n4 < 256
| _ => false
+fun isHexDigit ch = Char.isDigit ch orelse (ord ch >= ord #"a" andalso ord ch <= ord #"f")
+
+fun validIpv6 s =
+ let
+ val fields = String.fields (fn ch => ch = #":") s
+
+ val empties = foldl (fn ("", n) => n + 1
+ | (_, n) => n) 0 fields
+
+ fun noIpv4 maxLen =
+ length fields >= 2
+ andalso length fields <= maxLen
+ andalso empties <= 1
+ andalso List.all (fn "" => true
+ | s => size s <= 4
+ andalso CharVector.all isHexDigit s) fields
+
+ fun hasIpv4 () =
+ length fields > 0
+ andalso
+ let
+ val maybeIpv4 = List.last fields
+ val theRest = List.take (fields, length fields - 1)
+ in
+ validIp maybeIpv4 andalso noIpv4 6
+ end
+ in
+ noIpv4 8 orelse hasIpv4 ()
+ end
+
fun isIdent ch = Char.isLower ch orelse Char.isDigit ch
fun validHost s =
- size s > 0 andalso size s < 20
+ size s > 0 andalso size s < 50
andalso CharVector.all (fn ch => isIdent ch orelse ch = #"-") s
fun validDomain s =
- size s > 0 andalso size s < 100
+ size s > 0 andalso size s < 200
andalso List.all validHost (String.fields (fn ch => ch = #".") s)
fun validNode s = List.exists (fn s' => s = s') nodes
+fun yourDomain s = !fakePrivs orelse SS.member (your_domains (), s)
+fun yourUser s = SS.member (your_users (), s)
+fun yourGroup s = SS.member (your_groups (), s)
+fun checkPath paths path =
+ (List.all (fn s => s <> "..") (String.fields (fn ch => ch = #"/") path)
+ andalso CharVector.all (fn ch => Char.isAlphaNum ch orelse ch = #"." orelse ch = #"/"
+ orelse ch = #"-" orelse ch = #"_") path
+ andalso SS.exists (fn s' => path = s' orelse String.isPrefix (s' ^ "/") path) (paths ()))
+val yourPath = checkPath your_paths
+val readablePath = checkPath readable_paths
+fun yourIp s = !fakePrivs orelse SS.member (your_ips (), s)
+
+fun yourDomainHost s =
+ !fakePrivs
+ orelse yourDomain s
+ orelse let
+ val (pref, suf) = Substring.splitl (fn ch => ch <> #".") (Substring.full s)
+ in
+ Substring.size suf > 0
+ andalso validHost (Substring.string pref)
+ andalso yourDomain (Substring.string
+ (Substring.slice (suf, 1, NONE)))
+ end
+
+val yourDomain = yourDomainHost
+
+fun validUser s = size s > 0 andalso size s < 20
+ andalso CharVector.all Char.isAlphaNum s
+
+fun validEmailUser s =
+ size s > 0 andalso size s < 50
+ andalso CharVector.all (fn ch => Char.isAlphaNum ch
+ orelse ch = #"."
+ orelse ch = #"_"
+ orelse ch = #"-"
+ orelse ch = #"+") s
+
+val validGroup = validUser
+
+val _ = Env.type_one "no_spaces"
+ Env.string
+ (CharVector.all (fn ch => Char.isPrint ch andalso not (Char.isSpace ch)
+ andalso ch <> #"\"" andalso ch <> #"'"))
+val _ = Env.type_one "no_newlines"
+ Env.string
+ (CharVector.all (fn ch => Char.isPrint ch andalso ch <> #"\n" andalso ch <> #"\r"
+ andalso ch <> #"\""))
+
val _ = Env.type_one "ip"
Env.string
validIp
+val _ = Env.type_one "ipv6"
+ Env.string
+ validIpv6
+
val _ = Env.type_one "host"
Env.string
validHost
Env.string
validDomain
+val _ = Env.type_one "your_domain"
+ Env.string
+ yourDomain
+
+val _ = Env.type_one "your_domain_host"
+ Env.string
+ yourDomainHost
+
+val _ = Env.type_one "user"
+ Env.string
+ validUser
+
+val _ = Env.type_one "group"
+ Env.string
+ validGroup
+
+val _ = Env.type_one "your_user"
+ Env.string
+ yourUser
+
+val _ = Env.type_one "your_group"
+ Env.string
+ yourGroup
+
+val _ = Env.type_one "your_path"
+ Env.string
+ yourPath
+
+val _ = Env.type_one "readable_path"
+ Env.string
+ readablePath
+
+val _ = Env.type_one "your_ip"
+ Env.string
+ yourIp
+
val _ = Env.type_one "node"
Env.string
validNode
+val _ = Env.registerFunction ("your_ip_to_ip",
+ fn [e] => SOME e
+ | _ => NONE)
+
+val _ = Env.registerFunction ("dns_node_to_node",
+ fn [e] => SOME e
+ | _ => NONE)
+
+val _ = Env.registerFunction ("mail_node_to_node",
+ fn [e] => SOME e
+ | _ => NONE)
+
+
open Ast
val dl = ErrorMsg.dummyLoc
+val _ = Env.registerFunction ("end_in_slash",
+ fn [(EString "", _)] => SOME (EString "/", dl)
+ | [(EString s, _)] =>
+ SOME (EString (if String.sub (s, size s - 1) = #"/" then
+ s
+ else
+ s ^ "/"), dl)
+ | _ => NONE)
+
+
val nsD = (EString Config.defaultNs, dl)
val serialD = (EVar "serialAuto", dl)
val refD = (EInt Config.defaultRefresh, dl)
[nsD, serialD, refD, retD, expD, minD])
val masterD = (EApp ((EVar "internalMaster", dl),
- (EString Config.defaultNode, dl)),
+ (EString Config.masterNode, dl)),
dl)
-val _ = Main.registerDefault ("DNS",
- (TBase "dnsKind", dl),
- (multiApp ((EVar "useDns", dl),
- dl,
- [soaD, masterD, (EList [], dl)])))
+val slavesD = (EList (map (fn s => (EString s, dl)) Config.slaveNodes), dl)
+
+val _ = Defaults.registerDefault ("Aliases",
+ (TList (TBase "your_domain", dl), dl),
+ (fn () => (EList [], dl)))
+
+val _ = Defaults.registerDefault ("Mailbox",
+ (TBase "email", dl),
+ (fn () => (EString (getUser ()), dl)))
+
+val _ = Defaults.registerDefault ("DNS",
+ (TBase "dnsKind", dl),
+ (fn () => multiApp ((EVar "useDns", dl),
+ dl,
+ [soaD, masterD, slavesD])))
-val _ = Main.registerDefault ("TTL",
- (TBase "int", dl),
- (EInt Config.Bind.defaultTTL, dl))
+val _ = Defaults.registerDefault ("TTL",
+ (TBase "int", dl),
+ (fn () => (EInt Config.Bind.defaultTTL, dl)))
type soa = {ns : string,
serial : int option,
ExternalMaster of string
| InternalMaster of string
-val master = fn (EApp ((EVar "externalMaster", _), e), _) => Option.map ExternalMaster (Env.string e)
+val ip = Env.string
+
+val _ = Env.registerFunction ("ip_of_node",
+ fn [(EString node, _)] => SOME (EString (nodeIp node), dl)
+ | _ => NONE)
+
+val master = fn (EApp ((EVar "externalMaster", _), e), _) => Option.map ExternalMaster (ip e)
| (EApp ((EVar "internalMaster", _), e), _) => Option.map InternalMaster (Env.string e)
| _ => NONE
master = mstr,
slaves = slaves})
| _ => NONE)
+ | (EVar "noDns", _) => SOME NoDns
| _ => NONE
val befores = ref (fn (_ : string) => ())
afters := (fn x => (old x; f x))
end
+val globals = ref (fn () => ())
+val locals = ref (fn () => ())
+
+fun registerResetGlobal f =
+ let
+ val old = !globals
+ in
+ globals := (fn x => (old x; f x))
+ end
+
+fun registerResetLocal f =
+ let
+ val old = !locals
+ in
+ locals := (fn x => (old x; f x))
+ end
+
+fun resetGlobal () = (!globals ();
+ ignore (OS.Process.system (Config.rm ^ " -rf " ^ Config.resultRoot ^ "/*")))
+fun resetLocal () = !locals ()
+
val current = ref ""
val currentPath = ref (fn (_ : string) => "")
+val currentPathAli = ref (fn (_ : string, _ : string) => "")
val scratch = ref ""
fun currentDomain () = !current
+val currentsAli = ref ([] : string list)
+
+fun currentAliasDomains () = !currentsAli
+fun currentDomains () = currentDomain () :: currentAliasDomains ()
+
fun domainFile {node, name} = ((*print ("Opening " ^ !currentPath node ^ name ^ "\n");*)
TextIO.openOut (!currentPath node ^ name))
+type files = {write : string -> unit,
+ writeDom : unit -> unit,
+ close : unit -> unit}
+
+fun domainsFile {node, name} =
+ let
+ val doms = currentDomains ()
+ val files = map (fn dom => (dom, TextIO.openOut (!currentPathAli (dom, node) ^ name))) doms
+ in
+ {write = fn s => app (fn (_, outf) => TextIO.output (outf, s)) files,
+ writeDom = fn () => app (fn (dom, outf) => TextIO.output (outf, dom)) files,
+ close = fn () => app (fn (_, outf) => TextIO.closeOut outf) files}
+ end
+
fun getPath domain =
let
val toks = String.fields (fn ch => ch = #".") domain
| Delete' of string
| Modify' of {src : string, dst : string}
-fun findDiffs (site, dom, acts) =
+fun findDiffs (prefixes, site, dom, acts) =
let
val gp = getPath dom
val realPath = gp (Config.resultRoot, site)
loopReal acts
else
loopReal ((site, dom, realPath, Modify' {src = tmp, dst = real}) :: acts)
- else
+ 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
acts
end
-fun findAllDiffs () =
+fun findAllDiffs prefixes =
let
val dir = Posix.FileSys.opendir Config.tmpDir
val len = length (String.fields (fn ch => ch = #"/") Config.tmpDir) + 1
file = name}
in
explore (dname',
- findDiffs (site, dom, diffs))
+ findDiffs (prefixes, site, dom, diffs))
end
else
diffs)
before Posix.FileSys.closedir dir
end
in
- explore (OS.Path.joinDirFile {dir = Config.tmpDir,
- file = site}, diffs)
+ exploreSites (explore (OS.Path.joinDirFile {dir = Config.tmpDir,
+ file = site}, diffs))
end
in
exploreSites []
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;
- currentPath := (fn site => path (Config.tmpDir, site)))
+ 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 outf = domainFile {node = node, name = "soa"}
+ val {write, writeDom, close} = domainsFile {node = node, name = "soa"}
in
- TextIO.output (outf, kind);
- TextIO.output (outf, "\n");
- TextIO.output (outf, Int.toString ttl);
- TextIO.output (outf, "\n");
- TextIO.output (outf, #ns soa);
- TextIO.output (outf, "\n");
+ write kind;
+ write "\n";
+ write (Int.toString ttl);
+ write "\n";
+ write (#ns soa);
+ write "\n";
case #serial soa of
NONE => ()
- | SOME n => TextIO.output (outf, Int.toString n);
- TextIO.output (outf, "\n");
- TextIO.output (outf, Int.toString (#ref soa));
- TextIO.output (outf, "\n");
- TextIO.output (outf, Int.toString (#ret soa));
- TextIO.output (outf, "\n");
- TextIO.output (outf, Int.toString (#exp soa));
- TextIO.output (outf, "\n");
- TextIO.output (outf, Int.toString (#min soa));
- TextIO.output (outf, "\n");
- TextIO.closeOut outf
+ | 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) node =
- let
- val outf = domainFile {node = node, name = "named.conf"}
- in
- TextIO.output (outf, "\nzone \"");
- TextIO.output (outf, dom);
- TextIO.output (outf, "\" IN {\n\ttype ");
- TextIO.output (outf, kind);
- TextIO.output (outf, ";\n\tfile \"");
- TextIO.output (outf, Config.Bind.zonePath);
- TextIO.output (outf, "/");
- TextIO.output (outf, dom);
- TextIO.output (outf, ".zone\";\n");
- case kind of
- "master" => TextIO.output (outf, "\tallow-update { none; };\n")
- | _ => (TextIO.output (outf, "\tmasters { ");
- TextIO.output (outf, masterIp);
- TextIO.output (outf, " };\n"));
- TextIO.output (outf, "};\n");
- TextIO.closeOut outf
- 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
let
val masterIp =
case #master dns of
- InternalMaster node => valOf (SM.find (nodeMap, node))
+ 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)) (#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) node)
- | _ => masterNode := NONE;
- !befores dom
- end
+ saveNamed ("master", #soa dns, masterIp, slaveIps) node)
+ | _ => masterNode := NONE
+ end;
+ !befores dom
end,
fn () => !afters (!current))
-val () = Env.registerPre (fn () => (ignore (Slave.shellF ([Config.rm, " -rf ", Config.tmpDir, ""],
+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
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 diffs = findAllDiffs ()
+ 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],
handle OS.SysErr _ =>
ErrorMsg.error NONE ("Delete failed for " ^ dst);
(site,
- {action = Slave.Delete,
+ {action = Slave.Delete true,
domain = dom,
dir = dir,
file = dst}))
in
if !ErrorMsg.anyErrors then
()
- else
- Slave.handleChanges (map #2 diffs);
+ 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",
+ 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))
end
HCoop / hcoop / domtool2.git / blobdiff