X-Git-Url: https://git.hcoop.net/hcoop/domtool2.git/blobdiff_plain/d5772aa364d60b3a005443b07db58672d64b0432..991d8e6619bc9ff2182a39cfbeead53bee768a99:/src/main.sml

diff --git a/src/main.sml b/src/main.sml
index 28834af..6df1525 100644
--- a/src/main.sml
+++ b/src/main.sml
@@ -779,6 +779,35 @@ fun requestApt {node, pkg} =
 	before OpenSSL.close bio
     end
 
+fun requestAptExists {node, pkg} =
+    let
+	val (user, context) = requestContext (fn () => ())
+	val bio = OpenSSL.connect true (context, if node = Config.dispatcherName then
+						     dispatcher
+						 else
+						     Domain.nodeIp node ^ ":" ^ Int.toString Config.slavePort)
+
+	val _ = Msg.send (bio, MsgQuery (QAptExists 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 exists.\n";
+			       OS.Process.success)
+		  | MsgNo => (print "Package does not exist.\n";
+			      OS.Process.failure)
+		  | MsgError s => (print ("APT existence 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 () => ())
@@ -1184,6 +1213,7 @@ fun now () = Date.toString (Date.fromTimeUniv (Time.now ()))
 fun answerQuery q =
     case q of
 	QApt pkg => if Apt.installed pkg then MsgYes else MsgNo
+      | QAptExists pkg => if Apt.exists 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
@@ -1193,6 +1223,7 @@ fun answerQuery q =
 fun describeQuery q =
     case q of
 	QApt pkg => "Requested installation status of package " ^ pkg
+      | QAptExists pkg => "Requested if package " ^ pkg ^ " exists"
       | 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