AFSDB and SRV records; TXT records for base domain
[hcoop/domtool2.git] / src / plugins / bind.sml
index 217ef45..3d79cbf 100644 (file)
@@ -31,15 +31,15 @@ val () = Slave.registerPreHandler (fn () => (namedChanged := false;
                                             zoneChanged := false;
                                             didDomain := ""))
 
-val dns : TextIO.outstream option ref = ref NONE
+val dns : Domain.files option ref = ref NONE
 
 val _ = Domain.registerBefore
-           (fn _ => dns := Option.map (fn node => Domain.domainFile {node = node,
-                                                                     name = "dns"})
+           (fn _ => dns := Option.map (fn node => Domain.domainsFile {node = node,
+                                                                      name = "dns"})
                                       (Domain.dnsMaster ()))
        
 val _ = Domain.registerAfter
-           (fn _ => (Option.app TextIO.closeOut (!dns);
+           (fn _ => (Option.app (fn files => #close files ()) (!dns);
                      dns := NONE))
 
 val dl = ErrorMsg.dummyLoc
@@ -49,6 +49,13 @@ datatype dns_record =
        | CNAME of string * string
        | MX of int * string
        | NS of string
+       | DefaultA of string
+       | AAAA of string * string
+       | DefaultAAAA of string
+       | TXT of string * string
+       | DefaultTXT of string
+       | AFSDB of string
+       | SRV of string * int * int * int * string
 
 val record = fn (EApp ((EApp ((EVar "dnsA", _), e1), _), e2), _) =>
                (case (Env.string e1, Domain.ip e2) of
@@ -64,45 +71,125 @@ val record = fn (EApp ((EApp ((EVar "dnsA", _), e1), _), e2), _) =>
                   | _ => NONE)
              | (EApp ((EVar "dnsNS", _), e), _) =>
                Option.map NS (Env.string e)
+             | (EApp ((EVar "dnsDefaultA", _), e), _) =>
+               Option.map DefaultA (Domain.ip e)
+             | (EApp ((EApp ((EVar "dnsAAAA", _), e1), _), e2), _) =>
+               (case (Env.string e1, Env.string e2) of
+                    (SOME v1, SOME v2) => SOME (AAAA (v1, v2))
+                  | _ => NONE)
+             | (EApp ((EVar "dnsDefaultAAAA", _), e), _) =>
+               Option.map DefaultAAAA (Env.string e)
+             | (EApp ((EApp ((EVar "dnsTXT", _), e1), _), e2), _) =>
+               (case (Env.string e1, Env.string e2) of
+                    (SOME v1, SOME v2) => SOME (TXT (v1, v2))
+                  | _ => NONE)
+             | (EApp ((EVar "dnsDefaultTXT", _), e), _) =>
+               Option.map DefaultTXT (Env.string e)
+             | (EApp ((EVar "dnsAFSDB", _), e), _) =>
+               Option.map AFSDB (Env.string e)
+             | (EApp ((EApp ((EApp ((EApp ((EApp ((EVar "dnsSRV", _), e1), _), e2), _), e3), _), e4), _), e5), _) =>
+               (case (Env.string e1, Env.int e2, Env.int e3, Env.int e4, Env.string e5) of
+                    (SOME v1, SOME v2, SOME v3, SOME v4, SOME v5) => SOME (SRV (v1, v2, v3, v4, v5))
+                  | _ => NONE)
              | _ => NONE
 
 fun writeRecord (evs, r) =
     case !dns of
-       NONE => print "Warning: DNS directive ignored because no master DNS server is configured for this domain\n"
-      | SOME file =>
+       NONE => print ("Warning: DNS directive for " ^ Domain.currentDomain ()
+                      ^ " ignored because no master DNS server is configured for this domain\n")
+      | SOME files =>
        let
-           fun write s = TextIO.output (file, s)
+           fun write s = #write files s
+           fun writeDom () = #writeDom files ()
            val ttl = Env.env Env.int (evs, "TTL")
        in
            case r of
                A (from, to) => (write from;
                                 write ".";
-                                write (Domain.currentDomain ());
+                                writeDom ();
                                 write ".\t";
                                 write (Int.toString ttl);
                                 write "\tIN\tA\t";
                                 write to;
                                 write "\n")
+             | DefaultA to => (writeDom ();
+                               write ".\t";
+                               write (Int.toString ttl);
+                               write "\tIN\tA\t";
+                               write to;
+                               write "\n")
              | CNAME (from, to) => (write from;
                                     write ".";
-                                    write (Domain.currentDomain ());
+                                    writeDom ();
                                     write ".\t";
                                     write (Int.toString ttl);
                                     write "\tIN\tCNAME\t";
                                     write to;
                                     write ".\n")
-             | MX (num, host) => (write "\t";
+             | MX (num, host) => (writeDom ();
+                                  write ".\t";
                                   write (Int.toString ttl);
                                   write "\tIN\tMX\t";
                                   write (Int.toString num);
                                   write "\t";
                                   write host;
                                   write ".\n")
-             | NS host => (write "\t";
+             | NS host => (writeDom ();
+                           write ".\t";
                            write (Int.toString ttl);
                            write "\tIN\tNS\t";
                            write host;
                            write ".\n")
+             | AAAA (from, to) => (write from;
+                                   write ".";
+                                   writeDom ();
+                                   write ".\t";
+                                   write (Int.toString ttl);
+                                   write "\tIN\tAAAA\t";
+                                   write to;
+                                   write "\n")
+             | DefaultAAAA to => (writeDom ();
+                                  write ".\t";
+                                  write (Int.toString ttl);
+                                  write "\tIN\tAAAA\t";
+                                  write to;
+                                  write "\n")
+             | TXT (from, to) => (write from;
+                                  write ".";
+                                  writeDom ();
+                                  write ".\t";
+                                  write (Int.toString ttl);
+                                  write "\tIN\tTXT\t\"";
+                                  write (String.translate (fn #"\"" => "\\\"" | ch => str ch) to);
+                                  write "\"\n")
+             | DefaultTXT to => (writeDom ();
+                                 write ".\t";
+                                 write (Int.toString ttl);
+                                 write "\tIN\tTXT\t\"";
+                                 write (String.translate (fn #"\"" => "\\\"" | ch => str ch) to);
+                                 write "\"\n")
+             | AFSDB host => (writeDom ();
+                              write ".\t";
+                              write (Int.toString ttl);
+                              write "\tIN\tAFSDB\t";
+                              write "1";
+                              write "\t";
+                              write host;
+                              write ".\n")
+             | SRV (from, priority, weight, port, to) => (write from;
+                                                          write ".";
+                                                          writeDom ();
+                                                          write ".\t";
+                                                          write (Int.toString ttl);
+                                                          write "\tIN\tSRV\t";
+                                                          write (Int.toString priority);
+                                                          write "\t";
+                                                          write (Int.toString weight);
+                                                          write "\t";
+                                                          write (Int.toString port);
+                                                          write "\t";
+                                                          write to;
+                                                          write ".\n")
        end
 
 val () = Env.actionV_one "dns"
@@ -151,7 +238,7 @@ val () = Slave.registerFileHandler (fn fs =>
                                           fun dnsChanged () =
                                               if #domain fs = !didDomain then
                                                   ()
-                                              else if #action fs = Slave.Delete then
+                                              else if Slave.isDelete (#action fs) then
                                                   let
                                                       val fname = OS.Path.joinBaseExt {base = #domain fs,
                                                                                        ext = SOME "zone"}
@@ -266,4 +353,28 @@ val () = Slave.registerPostHandler
                                 fn cl => "Error reloading bind with " ^ cl)
                  else
                      ()))
+
+val () = Domain.registerResetLocal (fn () =>
+                                      ignore (OS.Process.system (Config.rm ^ " -rf /var/domtool/zones/*")))
+
+val () = Domain.registerDescriber (Domain.considerAll
+                                  [Domain.Filename {filename = "named.conf",
+                                                    heading = "named.conf addition:",
+                                                    showEmpty = false},
+                                   Domain.Filename {filename = "dns",
+                                                    heading = "DNS zonefile contents:",
+                                                    showEmpty = false}])
+
+fun validHost_ s =
+    size s > 0 andalso size s < 20
+    andalso CharVector.all (fn ch => Domain.isIdent ch orelse ch = #"-" orelse ch = #"_") s
+
+fun validSRVDomain s =
+    size s > 0 andalso size s < 100
+    andalso List.all validHost_ (String.fields (fn ch => ch = #".") s)
+
+val _ = Env.type_one "srv_domain"
+       Env.string
+       validSRVDomain
+
 end