]> matita.cs.unibo.it Git - helm.git/blobdiff - helm/proofChecker/proofChecker.ml
- the mathql interpreter is not helm-dependent any more
[helm.git] / helm / proofChecker / proofChecker.ml
index 427c75888cd7ee07266529dd3624b0e28a885d1a..7c9c0f150a1a5068138b3aee594e75a54c88d29a 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 uris = ref [] in
- Arg.parse []
-  (fun uri -> uris :=  uri :: !uris)
-  "
-usage: proofChecker uri ...
-
-List of options:";
- uris := List.rev !uris;
-  List.iter
-   (function uri ->
-     try
-        CicTypeChecker.typecheck (UriManager.uri_of_string uri)
-     with
-       e -> print_newline () ; flush stdout ; raise e 
-   ) !uris
+open Printf;;
+
+let default_port = 48084;;
+
+let port =
+  try
+    int_of_string (Sys.getenv "PROOF_CHECKER_PORT")
+  with
+  | Not_found -> default_port
+  | Failure "int_of_string" ->
+      prerr_endline "Warning: invalid port, reverting to default";
+      default_port
+;;
+
+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
+"))
+;;
+
+let bad_request outchan =
+  printf "INVALID REQUEST !!!!!\n\n";
+  flush stdout;
+  Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan;
+  flush outchan
+;;
+
+let usage_string =
+"
+<html>
+  <head>
+    <title>ProofChecker's help message</title>
+  </head>
+  <body>
+    <h1>ProofChecker</h1>
+    <h2>Usage</h2>
+    <p>
+    Usage: <kbd>http://hostname:proofcheckerport/</kbd><em>command</em>
+    </p>
+    <p>
+    Available commands:
+    </p>
+    <p>
+      <b><kbd>help</kbd></b><br />
+      display this help message
+    </p>
+    <p>
+      <b><kbd>proofCheck?uri=uri</kbd></b><br />
+      proof-checks the object whose URI is specified by <em>uri</em>
+    </p>
+  </body>
+</html>
+"
 ;;
 
-main ();;
+let callback (req : Http_types.request) 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
+  | "/help" ->
+      Http_daemon.respond ~body:usage_string
+       ~headers:["Content-Type", "text/html"] outchan
+  | req -> bad_request outchan
+
+in
+
+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"