]> matita.cs.unibo.it Git - helm.git/blobdiff - helm/proofChecker/proofChecker.ml
Initial revision
[helm.git] / helm / proofChecker / proofChecker.ml
index d7cf692849933d6a51fb0ac07b1b73ee882f0129..5467ab43be5590f9b6b8126f2e0d6897aa4edba5 100644 (file)
@@ -1,4 +1,4 @@
-(* Copyright (C) 2000, HELM Team.
+(* Copyright (C) 2002, HELM Team.
  * 
  * This file is part of HELM, an Hypertextual, Electronic
  * Library of Mathematics, developed at the Computer Science
  * http://cs.unibo.it/helm/.
  *)
 
-let main () =
- let usage_msg =
-  "
-usage: proofChecker[.opt]
-The proof-checker reads from the stdin one URI at a time and proof-checks it.
-
-List of options:"
- in
-  Arg.parse []
-   (fun _ -> 
-     begin
-      prerr_string "Error: no options expected.\n" ;
-      Arg.usage [] usage_msg ;
-      exit (-1)
-     end
-  ) usage_msg ;
+open Printf;;
+
+let default_port = 48084;;
+
+let port =
   try
-   while true do
-    begin
-     try
-      CicTypeChecker.typecheck (UriManager.uri_of_string (read_line ()))
-     with
-        End_of_file -> raise End_of_file
-      | e ->
-       print_newline() ;
-       flush stdout ;
-       raise e
-    end ;
-    print_endline "END"
-   done
+    int_of_string (Sys.getenv "PROOF_CHECKER_PORT")
   with
-   End_of_file -> ()
-;;
+  | Not_found -> default_port
+  | Failure "int_of_string" ->
+      prerr_endline "Warning: invalid port, reverting to default";
+      default_port
+in
+
+let (html_preamble, html_postamble) =
+  ((fun uri ->
+    (sprintf
+"<html>
+<head>
+ <title>Proof-Checking %s</title>
+</head>
+<body bgcolor=\"white\">
+<h1>Proof-Checking %s:</h1>
+"
+      uri uri)),
+("<h1>Done.</h1>
+</body>
+</html>
+END
+"))
+in
+
+let bad_request outchan =
+  printf "INVALID REQUEST !!!!!\n\n";
+  flush stdout;
+  Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan;
+  flush outchan
+in
+
+let callback req outchan =
+  match req#path with
+  | "/proofCheck" ->
+      begin
+        Logger.log_callback :=
+          (Logger.log_to_html
+            ~print_and_flush:(fun s -> fprintf outchan "%s" s; flush outchan));
+        try
+          let uri = req#param "uri" in
+          printf "Request to proof-check \"%s\"..." uri;
+          flush stdout;
+          fprintf outchan "%s" (html_preamble uri);
+          flush outchan;
+          (try
+            CicTypeChecker.typecheck (UriManager.uri_of_string uri);
+           with e ->
+            fprintf outchan "%s\n" (Printexc.to_string e);
+            flush outchan);
+          fprintf outchan "%s" html_postamble;
+          flush outchan;
+          printf " done\n\n";
+          flush stdout
+        with Not_found -> (* 'uri' argument not found *)
+          bad_request outchan
+      end
+  | req -> bad_request outchan
+
+in
+
+CicCooking.init();
+printf "Proof Checker started and listening on port %d\n" port;
+flush stdout;
+Http_daemon.start' ~port callback;
+printf "Proof Checker is terminating, bye!\n"
 
-CicCooking.init() ;
-main ();;