* http://cs.unibo.it/helm/.
*)
-let debug = false;;
+let debug = true;;
let debug_print s = if debug then prerr_endline s;;
-Http_common.debug := debug;;
+Http_common.debug := true;;
open Printf;;
let default_port = 58085;;
let port_env_var = "SEARCH_ENGINE_PORT";;
+let pages_dir = "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
+
+ (** chain application of Pcre substitutions *)
+let rec apply_substs substs line =
+ match substs with
+ | [] -> line
+ | (rex, templ) :: rest -> apply_substs rest (Pcre.replace ~rex ~templ line)
+ (** fold like function on files *)
+let fold_file f init fname =
+ let inchan = open_in fname in
+ let rec fold_lines' value =
+ try
+ let line = input_line inchan in
+ fold_lines' (f value line)
+ with End_of_file -> value
+ in
+ let res = (try fold_lines' init with e -> (close_in inchan; raise e)) in
+ close_in inchan;
+ res
+ (** iter like function on files *)
+let iter_file f = fold_file (fun _ line -> f line) ()
+
+let (title_tag_RE, choices_tag_RE, msg_tag_RE, id_to_uris_RE, id_RE,
+ interpretations_RE, interpretations_labels_RE, results_RE, new_aliases_RE) =
+ (Pcre.regexp "@TITLE@", Pcre.regexp "@CHOICES@", Pcre.regexp "@MSG@",
+ Pcre.regexp "@ID_TO_URIS@", Pcre.regexp "@ID@",
+ Pcre.regexp "@INTERPRETATIONS@", Pcre.regexp "@INTERPRETATIONS_LABELS@",
+ Pcre.regexp "@RESULTS@", Pcre.regexp "@NEW_ALIASES@")
+
let port =
try
int_of_string (Sys.getenv port_env_var)
in
let pp_result result =
let result_string = MQueryUtil.text_of_result result "\n" in
- (sprintf "<html><body><pre>%s</pre></body></html>" result_string)
+ (sprintf "<html>\n<head>\n</head>\n<body>\n<pre>%s</pre>\n</body>\n</html>"
+ result_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
in
-let callback req outchan =
+let contype = "Content-Type", "text/html" in
+
+(* SEARCH ENGINE functions *)
+
+let refine_constraints (x, y, z) = (x, y, z), (Some x, Some y, Some z) in
+
+(* HTTP DAEMON CALLBACK *)
+
+let callback (req: Http_types.request) outchan =
try
+ debug_print (sprintf "Received request: %s" req#path);
(match req#path with
| "/execute" ->
let query_string = req#param "query" in
Http_daemon.respond
~body:
(sprintf "<html><body><pre>%s</pre></body></html>" result_string)
- outchan
+ ~headers:[contype] outchan
| "/locate" ->
let id = req#param "id" in
let result = MQueryGenerator.locate id in
- Http_daemon.respond ~body:(pp_result result) outchan
+ Http_daemon.respond ~headers:[contype] ~body:(pp_result result) outchan
+ | "/getpage" ->
+ (let is_permitted _ = true in
+ let remove_fragment uri = Pcre.replace ~pat:"#.*" uri in
+ match req#param "url" with
+ | page when is_permitted (remove_fragment page) ->
+ Http_daemon.respond_file
+ ~fname:(sprintf "%s/%s" pages_dir (remove_fragment page)) outchan
+ | page -> Http_daemon.respond_forbidden ~url:page outchan)
| "/searchPattern" ->
let term_string = req#param "term" in
- let precision = int_of_string (req#param "precision") in
let lexbuf = Lexing.from_string term_string in
- let (dom, mkterm) =
- CicTextualParser.main CicTextualLexer.token lexbuf
+ let (context, metasenv) = ([], []) in
+ let (dom, mk_metasenv_and_expr) =
+ CicTextualParserContext.main
+ ~context ~metasenv CicTextualLexer.token lexbuf
+ in
+ let id_to_uris_raw = req#param "aliases" in
+ let tokens = Pcre.split ~pat:"\\s" id_to_uris_raw in
+ let rec parse_tokens keys lookup = function (* TODO spostarla fuori *)
+ | [] -> keys, lookup
+ | "alias" :: key :: value :: rest ->
+ parse_tokens
+ (key::keys)
+ (fun id ->
+ if id = key then
+ Some (Disambiguate.cic_textual_parser_uri_of_string value)
+ else lookup id)
+ rest
+ | _ -> failwith "Can't parse aliases"
+ in
+ let parse_choices choices_raw =
+ let choices = Pcre.split ~pat:";" choices_raw in
+ List.fold_left
+ (fun f x ->
+ match Pcre.split ~pat:"\\s" x with
+ | ""::id::tail
+ | id::tail when id<>"" ->
+ (fun id' ->
+ if id = id' then
+ Some (List.map (fun u -> Netencoding.Url.decode u) tail)
+ else
+ f id')
+ | _ -> failwith "Can't parse choices")
+ (fun _ -> None)
+ choices
in
- (match dom with
- | [] -> (* no free variables *)
- let term = mkterm (fun _ -> None) in
- prerr_endline (CicPp.ppterm term);
- let result = MQueryGenerator.searchPattern [] [] term precision in
- Http_daemon.respond ~body:(pp_result result) outchan
- | _ ->
+ let id_to_uris = parse_tokens [] (fun _ -> None) tokens in
+ let id_to_choices =
+ try
+ let choices_raw = req#param "choices" in
+ parse_choices choices_raw
+ with Http_types.Param_not_found _ -> (fun _ -> None)
+ in
+ let module Chat: Disambiguate.Callbacks =
+ struct
+
+ let output_html = prerr_endline
+
+ let interactive_user_uri_choice
+ ~selection_mode ?ok
+ ?enable_button_for_non_vars ~(title: string) ~(msg: string)
+ ~(id: string) (choices: string list)
+ =
+ (match id_to_choices id with
+ | Some choices -> choices
+ | None ->
+ let msg = Pcre.replace ~pat:"\"" ~templ:"\\\"" msg in
+ (match selection_mode with
+ | `SINGLE -> assert false
+ | `EXTENDED ->
+ iter_file
+ (fun line ->
+ let formatted_choices =
+ String.concat ","
+ (List.map (fun uri -> sprintf "\"%s\"" uri) choices)
+ in
+ let processed_line =
+ apply_substs
+ [title_tag_RE, title;
+ choices_tag_RE, formatted_choices;
+ msg_tag_RE, msg;
+ id_to_uris_RE, id_to_uris_raw;
+ id_RE, id]
+ line
+ in
+ output_string outchan processed_line)
+ interactive_user_uri_choice_TPL;
+ raise Chat_unfinished))
+
+ let interactive_interpretation_choice interpretations =
+ let html_interpretations_labels =
+ String.concat ", "
+ (List.map
+ (fun l ->
+ "\"" ^
+ (String.concat "<br />"
+ (List.map
+ (fun (id, value) ->
+ (sprintf "alias %s %s" id value))
+ l)) ^
+ "\"")
+ interpretations)
+ in
+ let html_interpretations =
+ String.concat ", "
+ (List.map
+ (fun l ->
+ "\"" ^
+ (String.concat " "
+ (List.map
+ (fun (id, value) ->
+ (sprintf "alias %s %s"
+ id
+ (Disambiguate.wrong_xpointer_format_from_wrong_xpointer_format'
+ value)))
+ l)) ^
+ "\"")
+ interpretations)
+ in
+ iter_file
+ (fun line ->
+ let processed_line =
+ apply_substs
+ [interpretations_RE, html_interpretations;
+ interpretations_labels_RE, html_interpretations_labels]
+ line
+ in
+ output_string outchan processed_line)
+ interactive_interpretation_choice_TPL;
+ raise Chat_unfinished
+
+ let input_or_locate_uri ~title =
+ UriManager.uri_of_string "cic:/Coq/Init/DataTypes/nat_ind.con"
+
+ end
+ in
+ let module Disambiguate' = Disambiguate.Make (Chat) in
+ let (id_to_uris', metasenv', term') =
+ Disambiguate'.disambiguate_input
+ context metasenv dom mk_metasenv_and_expr id_to_uris
+ in
+ (match metasenv' with
+ | [] ->
+ let must = MQueryLevels2.get_constraints term' in
+ let must',only = refine_constraints must in
+ let results = MQueryGenerator.searchPattern must' only in
+ debug_print "FASE 3";
+ iter_file
+ (fun line ->
+ let new_aliases =
+ match id_to_uris' with
+ | (domain, f) ->
+ String.concat ", "
+ (List.map
+ (fun name ->
+ sprintf "\"alias %s cic:%s\""
+ name
+ (match f name with
+ | None -> assert false
+ | Some t ->
+ Disambiguate.string_of_cic_textual_parser_uri
+ t))
+ domain)
+ in
+ let processed_line =
+ apply_substs
+ [results_RE, MQueryUtil.text_of_result results "\n";
+ new_aliases_RE, new_aliases]
+ line
+ in
+ output_string outchan processed_line)
+ final_results_TPL
+ | _ -> (* unable to instantiate some implicit variable *)
Http_daemon.respond
- ~body:(pp_error
- "identifiers resolution in the environment not yet implemented")
+ ~headers:[contype]
+ ~body:"some implicit variables are still unistantiated :-("
outchan)
+
| invalid_request ->
- Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan)
+ Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
+ debug_print (sprintf "%s done!" req#path)
with
- | Http_request.Param_not_found attr_name ->
+ | Chat_unfinished -> prerr_endline "Chat unfinished, Try again!"
+ | Http_types.Param_not_found attr_name ->
bad_request (sprintf "Parameter '%s' is missing" attr_name) outchan
- | Failure "int_of_string" ->
- bad_request "Invalid 'precision' value, must be an integer" outchan
| exc ->
Http_daemon.respond
~body:(pp_error ("Uncaught exception: " ^ (Printexc.to_string exc)))
printf "%s started and listening on port %d\n" daemon_name port;
printf "current directory is %s\n" (Sys.getcwd ());
flush stdout;
+Unix.putenv "http_proxy" "";
Mqint.set_database Mqint.postgres_db;
Mqint.init "host=mowgli.cs.unibo.it dbname=helm_mowgli_new_schema user=helm";
Http_daemon.start' ~port callback;
projects / helm.git / commitdiff