Start of DBMS support
[hcoop/domtool2.git] / src / main.sml
index 715b486..f2a45c7 100644 (file)
@@ -371,10 +371,65 @@ fun requestRmdom dom =
        OpenSSL.close bio
     end
 
-fun regenerate () =
+fun requestRmuser user =
+    let
+       val (_, bio) = requestBio (fn () => ())
+    in
+       Msg.send (bio, MsgRmuser user);
+       case Msg.recv bio of
+           NONE => print "Server closed connection unexpectedly.\n"
+         | SOME m =>
+           case m of
+               MsgOk => print "Removal succeeded.\n"
+             | MsgError s => print ("Removal failed: " ^ s ^ "\n")
+             | _ => print "Unexpected server reply.\n";
+       OpenSSL.close bio
+    end
+
+fun requestDbUser dbtype =
+    let
+       val (_, bio) = requestBio (fn () => ())
+    in
+       Msg.send (bio, MsgCreateDbUser dbtype);
+       case Msg.recv bio of
+           NONE => print "Server closed connection unexpectedly.\n"
+         | SOME m =>
+           case m of
+               MsgOk => print "Your user has been created.\n"
+             | MsgError s => print ("Creation failed: " ^ s ^ "\n")
+             | _ => print "Unexpected server reply.\n";
+       OpenSSL.close bio
+    end
+
+fun regenerate context =
     let
        val b = basis ()
-       val _ = Tycheck.disallowExterns ()
+       val () = Tycheck.disallowExterns ()
+
+       val () = Domain.resetGlobal ()
+
+       fun contactNode (node, ip) =
+           if node = Config.defaultNode then
+               Domain.resetLocal ()
+           else let
+                   val bio = OpenSSL.connect (context,
+                                              ip
+                                              ^ ":"
+                                              ^ Int.toString Config.slavePort)
+               in
+                   Msg.send (bio, MsgRegenerate);
+                   case Msg.recv bio of
+                       NONE => print "Slave closed connection unexpectedly\n"
+                     | SOME m =>
+                       case m of
+                           MsgOk => print ("Slave " ^ node ^ " pre-regeneration finished\n")
+                         | MsgError s => print ("Slave " ^ node
+                                                ^ " returned error: " ^
+                                                s ^ "\n")
+                         | _ => print ("Slave " ^ node
+                                       ^ " returned unexpected command\n");
+                   OpenSSL.close bio
+               end             
 
        fun doUser user =
            let
@@ -408,11 +463,24 @@ fun regenerate () =
                handle IO.Io _ => ()
                     | OS.SysErr (s, _) => print ("System error processing user " ^ user ^ ": " ^ s ^ "\n")
     in
+       app contactNode Config.nodeIps;
        Env.pre ();
        app doUser (Acl.users ());
        Env.post ()
     end
 
+fun rmuser user =
+    let
+       val doms = Acl.class {user = user, class = "domain"}
+       val doms = List.filter (fn dom =>
+                                  case Acl.whoHas {class = "domain", value = dom} of
+                                      [_] => true
+                                    | _ => false) (StringSet.listItems doms)
+    in
+       Acl.rmuser user;
+       Domain.rmdom doms
+    end
+
 fun service () =
     let
        val () = Acl.read Config.aclFile
@@ -557,12 +625,15 @@ fun service () =
                                handle OpenSSL.OpenSSL _ => ();
                                loop ())
 
-                             | MsgRmdom dom =>
+                             | MsgRmdom doms =>
                                if Acl.query {user = user, class = "priv", value = "all"}
-                                  orelse Acl.query {user = user, class = "domain", value = dom} then
-                                   ((Domain.rmdom dom;
+                                  orelse List.all (fn dom => Acl.query {user = user, class = "domain", value = dom}) doms then
+                                   ((Domain.rmdom doms;
+                                     app (fn dom =>
+                                             Acl.revokeFromAll {class = "domain", value = dom}) doms;
+                                     Acl.write Config.aclFile;
                                      Msg.send (bio, MsgOk);
-                                     print ("Removed domain " ^ dom ^ ".\n"))
+                                     print ("Removed domains" ^ foldl (fn (d, s) => s ^ " " ^ d) "" doms ^ ".\n"))
                                     handle OpenSSL.OpenSSL s =>
                                            (print "OpenSSL error\n";
                                             Msg.send (bio,
@@ -584,7 +655,7 @@ fun service () =
                              | MsgRegenerate =>
                                if Acl.query {user = user, class = "priv", value = "regen"}
                                   orelse Acl.query {user = user, class = "priv", value = "all"} then
-                                   ((regenerate ();
+                                   ((regenerate context;
                                      Msg.send (bio, MsgOk);
                                      print "Regenerated all configuration.\n")
                                     handle OpenSSL.OpenSSL s =>
@@ -603,7 +674,61 @@ fun service () =
                                      ignore (OpenSSL.readChar bio);
                                      OpenSSL.close bio)
                                     handle OpenSSL.OpenSSL _ => ();
-                                    loop ())                           
+                                    loop ())
+
+                             | MsgRmuser user' =>
+                               if Acl.query {user = user, class = "priv", value = "all"} then
+                                   ((rmuser user';
+                                     Acl.write Config.aclFile;
+                                     Msg.send (bio, MsgOk);
+                                     print ("Removed user " ^ user' ^ ".\n"))
+                                    handle OpenSSL.OpenSSL s =>
+                                           (print "OpenSSL error\n";
+                                            Msg.send (bio,
+                                                      MsgError
+                                                          ("Error during revocation: "
+                                                           ^ s)));
+                                   (ignore (OpenSSL.readChar bio);
+                                    OpenSSL.close bio)
+                                   handle OpenSSL.OpenSSL _ => ();
+                                   loop ())
+                               else
+                                   ((Msg.send (bio, MsgError "Not authorized to remove users");
+                                     print "Unauthorized user asked to remove a user!\n";
+                                     ignore (OpenSSL.readChar bio);
+                                     OpenSSL.close bio)
+                                    handle OpenSSL.OpenSSL _ => ();
+                                    loop ())
+
+                             | MsgCreateDbUser dbtype =>
+                               (case Dbms.lookup dbtype of
+                                    NONE => ((Msg.send (bio, MsgError ("Unknown database type " ^ dbtype));
+                                              print ("Database user creation request with unknown datatype type " ^ dbtype);
+                                              ignore (OpenSSL.readChar bio))
+                                             handle OpenSSL.OpenSSL _ => ();
+                                             OpenSSL.close bio
+                                             handle OpenSSL.OpenSSL _ => ();
+                                             loop ())
+                                  | SOME handler =>
+                                    case #adduser handler user of
+                                        NONE => ((Msg.send (bio, MsgOk);
+                                                  print ("Added " ^ dbtype ^ " user " ^ user ^ ".\n"))
+                                                 handle OpenSSL.OpenSSL s =>
+                                                        (print "OpenSSL error\n";
+                                                         Msg.send (bio,
+                                                                   MsgError
+                                                                       ("Error during creation: "
+                                                                        ^ s)));
+                                                 (ignore (OpenSSL.readChar bio);
+                                                  OpenSSL.close bio)
+                                                 handle OpenSSL.OpenSSL _ => ();
+                                                 loop ())
+                                      | SOME msg => ((Msg.send (bio, MsgError ("Error adding user: " ^ msg));
+                                                      print ("Error adding a " ^ dbtype ^ " user " ^ user ^ ": " ^ msg ^ "\n");
+                                                      ignore (OpenSSL.readChar bio);
+                                                      OpenSSL.close bio)
+                                                     handle OpenSSL.OpenSSL _ => ();
+                                                     loop ()))
 
                              | _ =>
                                (Msg.send (bio, MsgError "Unexpected command")
@@ -661,6 +786,8 @@ fun slave () =
                                        MsgFile file => loop' (file :: files)
                                      | MsgDoFiles => (Slave.handleChanges files;
                                                       Msg.send (bio, MsgOk))
+                                     | MsgRegenerate => (Domain.resetLocal ();
+                                                         Msg.send (bio, MsgOk))
                                      | _ => (print "Dispatcher sent unexpected command\n";
                                              Msg.send (bio, MsgError "Unexpected command"))
                        in
@@ -684,7 +811,7 @@ fun slave () =
        OpenSSL.shutdown sock
     end
 
-fun autodocBasis outdir =
+fun listBasis () =
     let
        val dir = Posix.FileSys.opendir Config.libRoot
 
@@ -699,10 +826,11 @@ fun autodocBasis outdir =
                          :: files)
                else
                    loop files
-
-       val files = loop []
     in
-       Autodoc.autodoc {outdir = outdir, infiles = files}
+       loop []
     end
 
+fun autodocBasis outdir =
+    Autodoc.autodoc {outdir = outdir, infiles = listBasis ()}
+
 end