let debug = true;;
let debug_print s = if debug then prerr_endline s;;
Http_common.debug := true;;
+(* Http_common.debug := true;; *)
+
+ (** accepted HTTP servers for ask_uwobo method forwarding *)
+let valid_servers = [ "mowgli.cs.unibo.it:58080" ] ;;
open Printf;;
let default_port = 58085;;
let port_env_var = "SEARCH_ENGINE_PORT";;
-let pages_dir = "html";; (* relative to searchEngine's document root *)
+let pages_dir =
+ try
+ Sys.getenv "SEARCH_ENGINE_HTML_DIR"
+ with Not_found -> "html" (* relative to searchEngine's document root *)
+;;
let interactive_user_uri_choice_TPL = pages_dir ^ "/templateambigpdq1.html";;
let interactive_interpretation_choice_TPL = pages_dir ^ "/templateambigpdq2.html";;
let final_results_TPL = pages_dir ^ "/templateambigpdq3.html";;
exception Chat_unfinished
- (** pretty print a MathQL query result to a string *)
-let text_of_result result sep =
- let res_string = ref "" in
- let app = function s -> res_string := !res_string ^ s in
- MQueryUtil.text_of_result app result sep ;
- !res_string
+ (** pretty print a MathQL query result to an HELM theory file *)
+let theory_of_result result =
+ let results_no = List.length result in
+ if results_no > 0 then
+ let mode = if results_no > 10 then "linkonly" else "typeonly" in
+ let results =
+ let idx = ref (results_no + 1) in
+ List.fold_right
+ (fun (uri,attrs) i ->
+ decr idx ;
+ "<tr><td valign=\"top\">" ^ string_of_int !idx ^ ".</td><td><ht:OBJECT uri=\"" ^ uri ^ "\" mode=\"" ^ mode ^ "\"/></td></tr>" ^ i
+ ) result ""
+ in
+ "<h1>Query Results:</h1><table xmlns:ht=\"http://www.cs.unibo.it/helm/namespaces/helm-theory\">" ^ results ^ "</table>"
+ else
+ "<h1>Query Results:</h1><p>No results found!</p>"
+;;
+
+let pp_result result =
+ "<html xmlns:ht=\"http://www.cs.unibo.it/helm/namespaces/helm-theory\">\n<head><title>Query Results</title><style> A { text-decoration: none } </style></head>\n<body>" ^ theory_of_result result ^ "</body></html>"
;;
(** chain application of Pcre substitutions *)
Pcre.regexp "@ID_TO_URIS@", Pcre.regexp "@ID@",
Pcre.regexp "@INTERPRETATIONS@", Pcre.regexp "@INTERPRETATIONS_LABELS@",
Pcre.regexp "@RESULTS@", Pcre.regexp "@NEW_ALIASES@")
+let server_and_port_url_RE = Pcre.regexp "^http://([^/]+)/.*$"
let port =
try
prerr_endline "Warning: invalid port, reverting to default";
default_port
in
-let pp_result result =
- let res_string = text_of_result result "\n" in
- (sprintf "<html>\n<head>\n</head>\n<body>\n<pre>%s</pre>\n</body>\n</html>"
- res_string)
-in
let pp_error = sprintf "<html><body><h1>Error: %s</h1></body></html>" in
let bad_request body outchan =
Http_daemon.respond_error ~status:(`Client_error `Bad_request) ~body outchan
let callback (req: Http_types.request) outchan =
try
debug_print (sprintf "Received request: %s" req#path);
+ if req#path <> "/getpage" then
+ Mqint.init postgresConnectionString;
(match req#path with
| "/execute" ->
let query_string = req#param "query" in
let lexbuf = Lexing.from_string query_string in
let query = MQueryUtil.query_of_text lexbuf in
let result = MQueryGenerator.execute_query query in
- let result_string = text_of_result result "\n" in
- Http_daemon.respond
- ~body:
- (sprintf "<html><body><pre>%s</pre></body></html>" result_string)
- ~headers:[contype] outchan
+ let result_string = pp_result result in
+ Http_daemon.respond ~body:result_string ~headers:[contype] outchan
| "/locate" ->
let id = req#param "id" in
let result = MQueryGenerator.locate id in
Http_daemon.respond_file
~fname:(sprintf "%s/%s" pages_dir (remove_fragment page)) outchan
| page -> Http_daemon.respond_forbidden ~url:page outchan)
+ | "/ask_uwobo" ->
+ let url = req#param "url" in
+ let server_and_port =
+ (Pcre.extract ~rex:server_and_port_url_RE url).(1)
+ in
+ if List.mem server_and_port valid_servers then
+ Http_daemon.respond
+ ~body:(Http_client.Convenience.http_get url)
+ outchan
+ else
+ Http_daemon.respond
+ ~body:(pp_error ("Invalid UWOBO server: " ^ server_and_port))
+ outchan
| "/searchPattern" ->
let term_string = req#param "term" in
let lexbuf = Lexing.from_string term_string in
| ""::id::tail
| id::tail when id<>"" ->
(fun id' ->
+prerr_endline ("#### " ^ id ^ " :=");
+List.iter (fun u -> prerr_endline ("<" ^ Netencoding.Url.decode u ^ ">")) tail;
if id = id' then
Some (List.map (fun u -> Netencoding.Url.decode u) tail)
else
(match selection_mode with
| `SINGLE -> assert false
| `EXTENDED ->
+ Http_daemon.send_basic_headers ~code:200 outchan ;
+ Http_daemon.send_CRLF outchan ;
iter_file
(fun line ->
let formatted_choices =
id_RE, id]
line
in
- output_string outchan processed_line)
+ output_string outchan (processed_line ^ "\n"))
interactive_user_uri_choice_TPL;
raise Chat_unfinished))
"\"")
interpretations)
in
+ Http_daemon.send_basic_headers ~code:200 outchan ;
+ Http_daemon.send_CRLF outchan ;
iter_file
(fun line ->
let processed_line =
interpretations_labels_RE, html_interpretations_labels]
line
in
- output_string outchan processed_line)
+ output_string outchan (processed_line ^ "\n"))
interactive_interpretation_choice_TPL;
raise Chat_unfinished
let must = MQueryLevels2.get_constraints term' in
let must',only = refine_constraints must in
let results = MQueryGenerator.searchPattern must' only in
+ Http_daemon.send_basic_headers ~code:200 outchan ;
+ Http_daemon.send_CRLF outchan ;
iter_file
(fun line ->
let new_aliases =
in
let processed_line =
apply_substs
- [results_RE, text_of_result results "\n";
+ [results_RE, theory_of_result results ;
new_aliases_RE, new_aliases]
line
in
- output_string outchan processed_line)
+ output_string outchan (processed_line ^ "\n"))
final_results_TPL
| _ -> (* unable to instantiate some implicit variable *)
Http_daemon.respond
| invalid_request ->
Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
+ if req#path <> "/getpage" then
+ Mqint.close ();
debug_print (sprintf "%s done!" req#path)
with
| Chat_unfinished -> prerr_endline "Chat unfinished, Try again!"
outchan
in
printf "%s started and listening on port %d\n" daemon_name port;
-printf "current directory is %s\n" (Sys.getcwd ());
+printf "Current directory is %s\n" (Sys.getcwd ());
+printf "HTML directory is %s\n" pages_dir;
flush stdout;
Unix.putenv "http_proxy" "";
Mqint.set_database Mqint.postgres_db;
-Mqint.init postgresConnectionString;
Http_daemon.start' ~port callback;
-Mqint.close ();
printf "%s is terminating, bye!\n" daemon_name
projects / helm.git / blobdiff