-
(* Copyright (C) 2002, HELM Team.
*
* This file is part of HELM, an Hypertextual, Electronic
* http://cs.unibo.it/helm/.
*)
+open Http_types ;;
+
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" ; "mowgli.cs.unibo.it" ; "localhost:58080" ] ;;
+
+let mqi_flags = [] (* default MathQL interpreter options *)
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 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 *)
let rec apply_substs substs line =
match substs with
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) =
+ 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 server_and_port_url_RE = Pcre.regexp "^http://([^/]+)/.*$"
+
+exception NotAnInductiveDefinition
let port =
try
prerr_endline "Warning: invalid port, reverting to default";
default_port
in
-let pp_result result =
- let result_string = MQueryUtil.text_of_result result "\n" in
- (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
(* SEARCH ENGINE functions *)
-let refine_constraints (x, y, z) = (x, y, z), (Some x, Some y, Some z) in
+let refine_constraints (constr_obj, constr_rel, constr_sort) =
+ function
+ "/searchPattern" ->
+ (constr_obj, constr_rel, constr_sort),
+ (Some constr_obj, Some constr_rel, Some constr_sort)
+ | "/matchConclusion" ->
+ let constr_obj' =
+ List.map
+ (function (uri,pos,_) -> (uri,pos,None))
+ (List.filter
+ (function (uri,pos,depth) as constr ->
+ pos="http://www.cs.unibo.it/helm/schemas/schema-helm#MainConclusion"
+ or
+ pos="http://www.cs.unibo.it/helm/schemas/schema-helm#InConclusion"
+ ) constr_obj)
+ in
+ (*CSC: we must select the must constraints here!!! *)
+ (constr_obj',[],[]),(Some constr_obj', None, None)
+ | _ -> assert false
+in
+
+let get_constraints term =
+ function
+ "/locateInductivePrinciple" ->
+ let uri =
+ match term with
+ Cic.MutInd (uri,t,_) -> MQueryUtil.string_of_uriref (uri,[t])
+ | _ -> raise NotAnInductiveDefinition
+ in
+ let constr_obj =
+ [uri,"http://www.cs.unibo.it/helm/schemas/schema-helm#InHypothesis",
+ None ;
+ uri,"http://www.cs.unibo.it/helm/schemas/schema-helm#MainHypothesis",
+ Some 0
+ ]
+ in
+ let constr_rel =
+ ["http://www.cs.unibo.it/helm/schemas/schema-helm#MainConclusion",
+ None] in
+ let constr_sort =
+ ["http://www.cs.unibo.it/helm/schemas/schema-helm#MainHypothesis",
+ Some 1, "http://www.cs.unibo.it/helm/schemas/schema-helm#Prop"]
+ in
+ (constr_obj, constr_rel, constr_sort), (None,None,None)
+ | req_path ->
+ let must = MQueryLevels2.get_constraints term in
+ refine_constraints must req_path
+in
(* HTTP DAEMON CALLBACK *)
debug_print (sprintf "Received request: %s" req#path);
(match req#path with
| "/execute" ->
+ let mqi_handle = MQIConn.init mqi_flags debug_print in
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 = MQueryUtil.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 = MQueryGenerator.execute_query mqi_handle query in
+ let result_string = pp_result result in
+ MQIConn.close mqi_handle;
+ Http_daemon.respond ~body:result_string ~headers:[contype] outchan
| "/locate" ->
+ let mqi_handle = MQIConn.init mqi_flags debug_print in
let id = req#param "id" in
- let result = MQueryGenerator.locate id in
+ let result = MQueryGenerator.locate mqi_handle id in
+ MQIConn.close mqi_handle;
Http_daemon.respond ~headers:[contype] ~body:(pp_result result) outchan
| "/getpage" ->
+ (* TODO implement "is_permitted" *)
(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 page = remove_fragment (req#param "url") in
+ let preprocess =
+ (try
+ bool_of_string (req#param "preprocess")
+ with Invalid_argument _ | Http_types.Param_not_found _ -> false)
+ in
+ (match page with
+ | page when is_permitted page ->
+ (let fname = sprintf "%s/%s" pages_dir (remove_fragment page) in
+ Http_daemon.send_basic_headers ~code:200 outchan;
+ Http_daemon.send_header "Content-Type" "text/html" outchan;
+ Http_daemon.send_CRLF outchan;
+ if preprocess then begin
+ iter_file
+ (fun line ->
+ output_string outchan
+ ((apply_substs
+ (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)
+ )
+ line) ^
+ "\n"))
+ fname
+ end else
+ Http_daemon.send_file ~src:(FileSrc fname) 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
+ ~headers:["Content-Type", "text/html"]
+ ~body:(Http_client.Convenience.http_get url)
+ outchan
+ else
+ Http_daemon.respond
+ ~body:(pp_error ("Untrusted UWOBO server: " ^ server_and_port))
+ outchan
+ | "/searchPattern"
+ | "/matchConclusion"
+ | "/locateInductivePrinciple" ->
+ let mqi_handle = MQIConn.init mqi_flags debug_print in
let term_string = req#param "term" in
let lexbuf = Lexing.from_string term_string in
let (context, metasenv) = ([], []) 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
+ let key' = CicTextualParser0.Id key in
+ parse_tokens
+ (key'::keys)
+ (fun id ->
+ if id = key' then
+ Some
+ (CicTextualParser0.Uri (MQueryMisc.cic_textual_parser_uri_of_string value))
+ else lookup id)
+ rest
| _ -> failwith "Can't parse aliases"
in
let parse_choices choices_raw =
| ""::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
(fun _ -> None)
choices
in
- let id_to_uris = parse_tokens [] (fun _ -> None) tokens in
+ let (id_to_uris : Disambiguate.domain_and_interpretation) =
+ parse_tokens [] (fun _ -> None) tokens in
let id_to_choices =
try
let choices_raw = req#param "choices" in
let module Chat: Disambiguate.Callbacks =
struct
+ let get_metasenv () =
+ !CicTextualParser0.metasenv
+
+ let set_metasenv metasenv =
+ CicTextualParser0.metasenv := metasenv
+
let output_html = prerr_endline
let interactive_user_uri_choice
(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))
(fun (id, value) ->
(sprintf "alias %s %s"
id
- (Disambiguate.wrong_xpointer_format_from_wrong_xpointer_format'
+ (MQueryMisc.wrong_xpointer_format_from_wrong_xpointer_format'
value)))
l)) ^
"\"")
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
in
let module Disambiguate' = Disambiguate.Make (Chat) in
let (id_to_uris', metasenv', term') =
- Disambiguate'.disambiguate_input
+ Disambiguate'.disambiguate_input mqi_handle
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";
+ let must',only = get_constraints term' req#path in
+ let results = MQueryGenerator.searchPattern mqi_handle must' only in
+ Http_daemon.send_basic_headers ~code:200 outchan ;
+ Http_daemon.send_CRLF outchan ;
iter_file
(fun line ->
let new_aliases =
(List.map
(fun name ->
sprintf "\"alias %s cic:%s\""
- name
+ (match name with
+ CicTextualParser0.Id name -> name
+ | _ -> assert false (*CSC: completare *))
(match f name with
| None -> assert false
- | Some t ->
- Disambiguate.string_of_cic_textual_parser_uri
- t))
+ | Some (CicTextualParser0.Uri t) ->
+ MQueryMisc.string_of_cic_textual_parser_uri
+ t
+ | _ -> assert false (*CSC: completare *)))
domain)
in
let processed_line =
apply_substs
- [results_RE, MQueryUtil.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
~headers:[contype]
~body:"some implicit variables are still unistantiated :-("
- outchan)
-
+ outchan);
+ MQIConn.close mqi_handle
| invalid_request ->
Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
debug_print (sprintf "%s done!" req#path)
| exc ->
Http_daemon.respond
~body:(pp_error ("Uncaught exception: " ^ (Printexc.to_string exc)))
- outchan
+ 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 "host=mowgli.cs.unibo.it dbname=helm_mowgli_new_schema user=helm";
Http_daemon.start' ~port callback;
-Mqint.close ();
printf "%s is terminating, bye!\n" daemon_name
projects / helm.git / blobdiff