+
+let send_results results
+ ?(id_to_uris = DisambiguatingParser.EnvironmentP3.of_string "")
+ (req: Http_types.request) outchan
+ =
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan ;
+ Http_daemon.send_header "Content-Type" "text/xml" outchan;
+ Http_daemon.send_CRLF outchan ;
+ let results_string =
+ match results with
+ | `Results r -> theory_of_result req r
+ | `Error msg -> msg
+ in
+ let subst =
+ (search_engine_url_RE, my_own_url) ::
+ (results_RE, results_string)::
+ (advanced_tag_RE, req#param "advanced")::
+ (expression_tag_RE, req#param "expression")::
+ (List.map
+ (function (key,value) ->
+ let key' = (Pcre.extract ~pat:"param\\.(.*)" key).(1) in
+ Pcre.regexp ("@" ^ key' ^ "@"), value)
+ (List.filter
+ (fun (key,_) as p-> Pcre.pmatch ~pat:"^param\\." key)
+ req#params)) @
+ (if req#param "advanced" = "no" then
+ [ simple_checked_RE, "checked='true'";
+ advanced_checked_RE, "" ]
+ else
+ [ simple_checked_RE, "";
+ advanced_checked_RE, "checked='true'" ])
+ in
+ iter_file
+ (fun line ->
+ let new_aliases =
+ DisambiguatingParser.EnvironmentP3.to_string id_to_uris
+ in
+ let processed_line =
+ apply_substs
+ (* CSC: Bug here: this is a string, not an array! *)
+ ((new_aliases_RE, "'" ^ javascript_quote new_aliases ^ "'")::subst)
+ line
+ in
+ output_string outchan (processed_line ^ "\n"))
+ moogle_TPL
+
+let exec_action mqi_handle (req: Http_types.request) outchan =
+ let term_string = req#param "expression" in
+ let (context, metasenv) = ([], []) in
+ let id_to_uris_raw =
+ try req#param "aliases"
+ with Http_types.Param_not_found _ -> ""
+ in
+ let parse_interpretation_choices choices =
+ List.map int_of_string (Pcre.split ~pat:" " choices) 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
+ let id_to_uris =
+ DisambiguatingParser.EnvironmentP3.of_string id_to_uris_raw 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 interpretation_choices =
+ try
+ let choices_raw = req#param "interpretation_choices" in
+ if choices_raw = "" then None
+ else Some (parse_interpretation_choices choices_raw)
+ with Http_types.Param_not_found _ -> None
+ in
+ let module Chat: DisambiguateTypes.Callbacks =
+ struct
+
+ 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 ->
+ if req#param "advanced" = "no" then
+ let isvar s =
+ let len = String.length s in
+ let suffix = String.sub s (len-4) 4 in
+ not (suffix = ".var") in
+ List.filter isvar choices
+ else
+ let msg = Pcre.replace ~pat:"\'" ~templ:"\\\'" msg in
+ (match selection_mode with
+ | `SINGLE -> assert false
+ | `MULTIPLE ->
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan;
+ Http_daemon.send_CRLF outchan ;
+ let check_box uri =
+ "<input type=\"checkbox\" name=\"param.choices\"
+ value=\"" ^
+ uri ^ "\" />" ^ "<b>" ^ uri ^ "</b>" in
+(* aggiungere gli hyperlinks? *)
+ let check_boxes =
+ String.concat "<br />"
+ (List.map check_box choices) in
+ iter_file
+ (fun line ->
+ let processed_line =
+ apply_substs
+ [advanced_tag_RE, req#param "advanced";
+ choices_tag_RE, check_boxes;
+ no_choices_tag_RE,
+ string_of_int (List.length choices);
+ iden_tag_RE, id;
+ current_choices_tag_RE, req#param "choices";
+ expression_tag_RE, req#param "expression";
+ action_tag_RE, string_tail req#path ]
+ line
+ in
+ output_string outchan (processed_line ^ "\n"))
+ interactive_user_uri_choice_TPL;
+ raise Chat_unfinished))
+
+ let interactive_interpretation_choice interpretations =
+ match interpretation_choices with
+ Some l -> prerr_endline "CARRAMBA" ; l
+ | None ->
+ let html_interpretations =
+ let radio_button n =
+ "<input type=\"radio\" name=\"param.interp\" value=\"" ^
+ (string_of_int n) ^ "\" />" in
+ let text interp =
+ String.concat "<br />"
+ (List.map
+ (fun (id, value) ->
+ sprintf "<span>%s = %s</span>" id value)
+ interp) in
+ let rec aux n =
+ function
+ [] -> []
+ | interp::tl ->
+ ((radio_button n)^(text interp))::(aux (n+1) tl) in
+ String.concat "<br />" (aux 0 interpretations)
+ in
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan ;
+ Http_daemon.send_CRLF outchan ;
+ iter_file
+ (fun line ->
+ let processed_line =
+ apply_substs
+ [advanced_tag_RE, req#param "advanced";
+ interpretations_RE, html_interpretations;
+ current_choices_tag_RE, req#param "choices";
+ expression_tag_RE, req#param "expression";
+ action_tag_RE, string_tail req#path ]
+ line
+ in
+ output_string outchan (processed_line ^ "\n"))
+ interactive_interpretation_choice_TPL;
+ raise Chat_unfinished
+
+ let input_or_locate_uri ~title ?id () =
+ match id with
+ | Some id -> raise (Unbound_identifier id)
+ | None -> assert false
+
+ end
+ in
+ let module Disambiguate' = DisambiguatingParser.Make(Chat) in
+ let (id_to_uris', metasenv', term') =
+ match
+ Disambiguate'.disambiguate_term mqi_handle
+ context metasenv term_string id_to_uris
+ with
+ [id_to_uris',metasenv',term'] -> id_to_uris',metasenv',term'
+ | _ -> assert false
+ in
+ let universe,
+ ((must_obj, must_rel, must_sort) as must'),
+ ((only_obj, only_rel, only_sort) as only) =
+ get_constraints term' req#path
+ in
+ if
+ (try ignore (req#param "constraints"); false
+ with Http_types.Param_not_found _ -> true) &&
+ (req#param "advanced" = "no") && (req#path = "/hint")
+ then
+ let dbd =
+ match mqi_handle.MQIConn.pgc with
+ | MQIConn.MySQL_C conn -> conn
+ | _ -> assert false
+ in
+ let results = List.map snd (Match_concl.cmatch dbd term') in
+ send_results (`Results results) ~id_to_uris:id_to_uris' req outchan
+ else
+ let must'', only' =
+ (try
+ add_user_constraints
+ ~constraints:(req#param "constraints")
+ (must', only)
+ with Http_types.Param_not_found _ ->
+ if req#param "advanced" = "no" then
+ (must',only)
+ else
+ let variables =
+ "var aliases = '" ^ id_to_uris_raw ^ "';\n" ^
+ "var constr_obj_len = " ^
+ string_of_int (List.length must_obj) ^ ";\n" ^
+ "var constr_rel_len = " ^
+ string_of_int (List.length must_rel) ^ ";\n" ^
+ "var constr_sort_len = " ^
+ string_of_int (List.length must_sort) ^ ";\n" in
+ let form =
+ (if must_obj = [] then "" else
+ "<h4>Obj constraints</h4>" ^
+ "<table>" ^
+ (String.concat "\n" (List.map html_of_r_obj must_obj)) ^
+ "</table>" ^
+ (* The following three lines to make Javascript create *)
+ (* the constr_obj[] and obj_depth[] arrays even if we *)
+ (* have only one real entry. *)
+ "<input type=\"hidden\" name=\"constr_obj\" />" ^
+ "<input type=\"hidden\" name=\"obj_depth\" />") ^
+ (if must_rel = [] then "" else
+ "<h4>Rel constraints</h4>" ^
+ "<table>" ^
+ (String.concat "\n" (List.map html_of_r_rel must_rel)) ^
+ "</table>" ^
+ (* The following two lines to make Javascript create *)
+ (* the constr_rel[] and rel_depth[] arrays even if *)
+ (* we have only one real entry. *)
+ "<input type=\"hidden\" name=\"constr_rel\" />" ^
+ "<input type=\"hidden\" name=\"rel_depth\" />") ^
+ (if must_sort = [] then "" else
+ "<h4>Sort constraints</h4>" ^
+ "<table>" ^
+ (String.concat "\n" (List.map html_of_r_sort must_sort)) ^
+ "</table>" ^
+ (* The following two lines to make Javascript create *)
+ (* the constr_sort[] and sort_depth[] arrays even if *)
+ (* we have only one real entry. *)
+ "<input type=\"hidden\" name=\"constr_sort\" />" ^
+ "<input type=\"hidden\" name=\"sort_depth\" />") ^
+ "<h4>Only constraints</h4>" ^
+ "Enforce Only constraints for objects: " ^
+ "<input type='checkbox' name='only_obj'" ^
+ (if only_obj = None then "" else " checked='yes'") ^
+ " /><br />" ^
+ "Enforce Rel constraints for objects: " ^
+ "<input type='checkbox' name='only_rel'" ^
+ (if only_rel = None then "" else " checked='yes'") ^
+ " /><br />" ^
+ "Enforce Sort constraints for objects: " ^
+ "<input type='checkbox' name='only_sort'" ^
+ (if only_sort = None then "" else " checked='yes'") ^
+ " /><br />"
+ in
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan ;
+ Http_daemon.send_CRLF outchan ;
+ iter_file
+ (fun line ->
+ let processed_line =
+ apply_substs
+ [form_RE, form ;
+ variables_initialization_RE, variables;
+ advanced_tag_RE, req#param "advanced";
+ current_choices_tag_RE, req#param "choices";
+ interpretations_RE, req#param "interpretation_choices";
+ expression_tag_RE, req#param "expression";
+ action_tag_RE, string_tail req#path] line
+ in
+ output_string outchan (processed_line ^ "\n"))
+ constraints_choice_TPL;
+ raise Chat_unfinished)
+ in
+ let query =
+ G.query_of_constraints universe must'' only'
+ in
+ let results = MQueryInterpreter.execute mqi_handle query in
+ send_results (`Results (List.map fst results))
+ ~id_to_uris:id_to_uris' req outchan