(* 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
val dispatcher =
Config.dispatcher ^ ":" ^ Int.toString Config.dispatcherPort
+val self =
+ "localhost:" ^ Int.toString Config.slavePort
+
fun requestContext f =
let
- val uid = Posix.ProcEnv.getuid ()
- val user = Posix.SysDB.Passwd.name (Posix.SysDB.getpwuid uid)
+ val user =
+ case Posix.ProcEnv.getenv "DOMTOOL_USER" of
+ NONE =>
+ let
+ val uid = Posix.ProcEnv.getuid ()
+ in
+ Posix.SysDB.Passwd.name (Posix.SysDB.getpwuid uid)
+ end
+ | SOME user => user
val () = Acl.read Config.aclFile
val () = Domain.setUser user
(user, OpenSSL.connect (context, dispatcher))
end
+fun requestSlaveBio () =
+ let
+ val (user, context) = requestContext (fn () => ())
+ in
+ (user, OpenSSL.connect (context, self))
+ end
+
fun request fname =
let
val (user, bio) = requestBio (fn () => ignore (check fname))
end
handle ErrorMsg.Error => ()
+fun requestPing () =
+ let
+ val (_, bio) = requestBio (fn () => ())
+ in
+ OpenSSL.close bio;
+ OS.Process.success
+ end
+ handle _ => OS.Process.failure
+
fun requestShutdown () =
let
val (_, bio) = requestBio (fn () => ())
OpenSSL.close bio
end
+fun requestSlavePing () =
+ let
+ val (_, bio) = requestSlaveBio ()
+ in
+ OpenSSL.close bio;
+ OS.Process.success
+ end
+ handle _ => OS.Process.failure
+
+fun requestSlaveShutdown () =
+ let
+ val (_, bio) = requestSlaveBio ()
+ in
+ Msg.send (bio, MsgShutdown);
+ case Msg.recv bio of
+ NONE => print "Server closed connection unexpectedly.\n"
+ | SOME m =>
+ case m of
+ MsgOk => print "Shutdown begun.\n"
+ | MsgError s => print ("Shutdown failed: " ^ s ^ "\n")
+ | _ => print "Unexpected server reply.\n";
+ OpenSSL.close bio
+ end
+
fun requestGrant acl =
let
val (user, bio) = requestBio (fn () => ())
OpenSSL.close bio
end
+fun requestApt {node, pkg} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QApt pkg))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgYes => (print "Package is installed.\n";
+ OS.Process.success)
+ | MsgNo => (print "Package is not installed.\n";
+ OS.Process.failure)
+ | MsgError s => (print ("APT query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
+fun requestCron {node, uname} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QCron uname))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgYes => (print "User has cron permissions.\n";
+ OS.Process.success)
+ | MsgNo => (print "User does not have cron permissions.\n";
+ OS.Process.failure)
+ | MsgError s => (print ("Cron query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
+fun requestFtp {node, uname} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QFtp uname))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgYes => (print "User has FTP permissions.\n";
+ OS.Process.success)
+ | MsgNo => (print "User does not have FTP permissions.\n";
+ OS.Process.failure)
+ | MsgError s => (print ("FTP query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
+fun requestTrustedPath {node, uname} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QTrustedPath uname))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgYes => (print "User has trusted path restriction.\n";
+ OS.Process.success)
+ | MsgNo => (print "User does not have trusted path restriction.\n";
+ OS.Process.failure)
+ | MsgError s => (print ("Trusted path query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
+fun requestSocketPerm {node, uname} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QSocket uname))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgSocket p => (case p of
+ Any => print "Any\n"
+ | Client => print "Client\n"
+ | Server => print "Server\n"
+ | Nada => print "Nada\n";
+ OS.Process.success)
+ | MsgError s => (print ("Socket permission query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
+fun requestFirewall {node, uname} =
+ let
+ val (user, context) = requestContext (fn () => ())
+ val bio = OpenSSL.connect (context, if node = Config.masterNode then
+ dispatcher
+ else
+ Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+ val _ = Msg.send (bio, MsgQuery (QFirewall uname))
+
+ fun loop () =
+ case Msg.recv bio of
+ NONE => (print "Server closed connection unexpectedly.\n";
+ OS.Process.failure)
+ | SOME m =>
+ case m of
+ MsgFirewall ls => (app (fn s => (print s; print "\n")) ls;
+ OS.Process.success)
+ | MsgError s => (print ("Firewall query failed: " ^ s ^ "\n");
+ OS.Process.failure)
+ | _ => (print "Unexpected server reply.\n";
+ OS.Process.failure)
+ in
+ loop ()
+ before OpenSSL.close bio
+ end
+
fun regenerate context =
let
val b = basis ()
end
handle IO.Io _ => ()
| OS.SysErr (s, _) => print ("System error processing user " ^ user ^ ": " ^ s ^ "\n")
+ | ErrorMsg.Error => print ("User " ^ user ^ " had a compilation error.\n")
+ | _ => print "Unknown exception during regeneration!\n"
in
app contactNode Config.nodeIps;
Env.pre ();
Domain.rmdom doms
end
+fun now () = Date.toString (Date.fromTimeUniv (Time.now ()))
+
+fun answerQuery q =
+ case q of
+ QApt pkg => if Apt.installed pkg then MsgYes else MsgNo
+ | QCron user => if Cron.allowed user then MsgYes else MsgNo
+ | QFtp user => if Ftp.allowed user then MsgYes else MsgNo
+ | QTrustedPath user => if TrustedPath.query user then MsgYes else MsgNo
+ | QSocket user => MsgSocket (SocketPerm.query user)
+ | QFirewall user => MsgFirewall (Firewall.query user)
+
+fun describeQuery q =
+ case q of
+ QApt pkg => "Requested installation status of package " ^ pkg
+ | QCron user => "Asked about cron permissions for user " ^ user
+ | QFtp user => "Asked about FTP permissions for user " ^ user
+ | QTrustedPath user => "Asked about trusted path settings for user " ^ user
+ | QSocket user => "Asked about socket permissions for user " ^ user
+ | QFirewall user => "Asked about firewall rules for user " ^ user
+
fun service () =
let
val () = Acl.read Config.aclFile
| SOME bio =>
let
val user = OpenSSL.peerCN bio
- val () = print ("\nConnection from " ^ user ^ " at " ^ Date.toString (Date.fromTimeUniv (Time.now ())) ^ "\n")
+ val () = print ("\nConnection from " ^ user ^ " at " ^ now () ^ "\n")
val () = Domain.setUser user
fun doIt f cleanup =
| MsgMultiConfig codes => doConfig codes
| MsgShutdown =>
- if Acl.query {user = user, class = "priv", value = "shutdown"} then
- print ("Domtool dispatcher shutting down at " ^ Date.toString (Date.fromTimeUniv (Time.now ())) ^ "\n")
+ if Acl.query {user = user, class = "priv", value = "all"}
+ orelse Acl.query {user = user, class = "priv", value = "shutdown"} then
+ print ("Domtool dispatcher shutting down at " ^ now () ^ "\n\n")
else
- (OpenSSL.close bio
+ (print "Unauthorized shutdown command!\n";
+ OpenSSL.close bio
handle OpenSSL.OpenSSL _ => ();
loop ())
NONE)))
(fn () => ())
+ | MsgQuery q =>
+ doIt (fn () => (Msg.send (bio, answerQuery q);
+ (describeQuery q,
+ NONE)))
+ (fn () => ())
+
| _ =>
doIt (fn () => ("Unexpected command",
SOME "Unexpected command"))
OpenSSL.close bio
handle OpenSSL.OpenSSL _ => ();
loop ())
+ | IO.Io {name, function, cause} =>
+ (print ("IO error: " ^ function ^ " for " ^ name ^ "\n");
+ app (fn x => print (x ^ "\n")) (SMLofNJ.exnHistory cause);
+ OpenSSL.close bio
+ handle OpenSSL.OpenSSL _ => ();
+ loop ())
+ | e =>
+ (print "Unknown exception in main loop!\n";
+ app (fn x => print (x ^ "\n")) (SMLofNJ.exnHistory e);
+ OpenSSL.close bio
+ handle OpenSSL.OpenSSL _ => ();
+ loop ())
in
- print ("Domtool dispatcher starting up at " ^ Date.toString (Date.fromTimeUniv (Time.now ())) ^ "\n");
+ print ("Domtool dispatcher starting up at " ^ now () ^ "\n");
print "Listening for connections....\n";
loop ();
OpenSSL.shutdown sock
val sock = OpenSSL.listen (context, Config.slavePort)
+ val _ = print ("Slave server starting at " ^ now () ^ "\n")
+
fun loop () =
case OpenSSL.accept sock of
NONE => ()
| SOME bio =>
let
val peer = OpenSSL.peerCN bio
- val () = print ("\nConnection from " ^ peer ^ "\n")
+ val () = print ("\nConnection from " ^ peer ^ " at " ^ now () ^ "\n")
in
- if peer <> Config.dispatcherName then
- (print "Not authorized!\n";
- OpenSSL.close bio;
- loop ())
- else let
+ if peer = Config.dispatcherName then let
fun loop' files =
case Msg.recv bio of
NONE => print "Dispatcher closed connection unexpectedly\n"
OpenSSL.close bio;
loop ()
end
+ else if peer = "domtool" then
+ case Msg.recv bio of
+ SOME MsgShutdown => (OpenSSL.close bio;
+ print ("Shutting down at " ^ now () ^ "\n\n"))
+ | _ => (OpenSSL.close bio;
+ loop ())
+ else
+ case Msg.recv bio of
+ SOME (MsgQuery q) => (print (describeQuery q ^ "\n");
+ Msg.send (bio, answerQuery q);
+ ignore (OpenSSL.readChar bio);
+ OpenSSL.close bio;
+ loop ())
+ | _ => (OpenSSL.close bio;
+ loop ())
end handle OpenSSL.OpenSSL s =>
(print ("OpenSSL error: "^ s ^ "\n");
OpenSSL.close bio
handle OpenSSL.OpenSSL _ => ();
loop ())
- | OS.SysErr (s, _) =>
- (print ("System error: "^ s ^ "\n");
+ | e as OS.SysErr (s, _) =>
+ (app (fn s => print (s ^ "\n")) (SMLofNJ.exnHistory e);
+ print ("System error: "^ s ^ "\n");
OpenSSL.close bio
handle OpenSSL.OpenSSL _ => ();
loop ())
HCoop / hcoop / domtool2.git / blobdiff