-(* Copyright (C) 2002, HELM Team.
+(* Copyright (C) 2002-2005, HELM Team.
*
* This file is part of HELM, an Hypertextual, Electronic
* Library of Mathematics, developed at the Computer Science
* http://cs.unibo.it/helm/.
*)
-module T = MQGTypes
-module U = MQGUtil
-module G = MQueryGenerator
-module C = MQIConn
+open Printf
-open Http_types ;;
-
-let debug = true;;
-let debug_print s = if debug then prerr_endline s;;
-Http_common.debug := true;;
-(* Http_common.debug := true;; *)
-
-open Printf;;
-
-let daemon_name = "Search Engine";;
-
- (* First of all we load the configuration *)
-let _ =
- let configuration_file = "/projects/helm/etc/searchEngine.conf.xml" in
- Helm_registry.load_from configuration_file
-;;
-
-let pages_dir = Helm_registry.get "search_engine.html_dir";;
-
- (** accepted HTTP servers for ask_uwobo method forwarding *)
-let valid_servers= Helm_registry.get_string_list "search_engine.valid_servers";;
-
-
-let interactive_user_uri_choice_TPL = pages_dir ^ "/templateambigpdq1.html";;
-let interactive_interpretation_choice_TPL =
- pages_dir ^ "/templateambigpdq2.html";;
-let constraints_choice_TPL = pages_dir ^ "/constraints_choice_template.html";;
-let final_results_TPL = pages_dir ^ "/templateambigpdq3.html";;
+let debug = true
+let debug_print s = if debug then prerr_endline s
+let _ = Http_common.debug := false
exception Chat_unfinished
+exception Unbound_identifier of string
+exception Invalid_action of string (* invalid action for "/search" method *)
+
+ (** raised by elim when a MutInd is required but not found *)
+exception Not_a_MutInd
+
+let daemon_name = "Whelp"
+let configuration_file = "/projects/helm/etc/whelp.conf.xml"
+
+let placeholders = [
+ "ACTION"; "ADVANCED"; "ADVANCED_CHECKED"; "CHOICES"; "CURRENT_CHOICES";
+ "EXPRESSION"; "ID"; "IDEN"; "ID_TO_URIS"; "INTERPRETATIONS";
+ "INTERPRETATIONS_LABELS"; "MSG"; "NEW_ALIASES"; "NEXT_LINK"; "NO_CHOICES";
+ "PAGE"; "PAGES"; "PAGELIST"; "PREV_LINK"; "QUERY_KIND"; "QUERY_SUMMARY"; "RESULTS";
+ "SEARCH_ENGINE_URL"; "SIMPLE_CHECKED"; "TITLE";
+]
+
+let tag =
+ let regexps = Hashtbl.create 25 in
+ List.iter
+ (fun tag -> Hashtbl.add regexps tag (Pcre.regexp (sprintf "@%s@" tag)))
+ placeholders;
+ fun name ->
+ try
+ Hashtbl.find regexps name
+ with Not_found -> assert false
-let javascript_quote =
- let rex = Pcre.regexp "'" in
- Pcre.replace ~rex ~templ:"\\'"
-;;
-
- (* build a bool from a 1-character-string *)
-let bool_of_string' = function
- | "0" -> false
- | "1" -> true
- | s -> failwith ("Can't parse a boolean from string: " ^ s)
-;;
-
- (* build an int option from a string *)
-let int_of_string' = function
- | "_" -> None
- | s ->
- try
- Some (int_of_string s)
- with Failure "int_of_string" ->
- failwith ("Can't parse an int option from string: " ^ s)
-;;
-
- (* HTML pretty printers for mquery_generator types *)
-
-let html_of_r_obj (pos, uri) =
- sprintf
- "<tr><td><input type='checkbox' name='constr_obj' checked='on'/></td><td>%s</td><td>%s</td><td>%s</td></tr>"
- uri (U.text_of_position pos)
- (if U.is_main_position pos then
- sprintf "<input name='obj_depth' size='2' type='text' value='%s' />"
- (U.text_of_depth pos "")
- else
- "<input type=\"hidden\" name=\"obj_depth\" />")
-;;
+ (* First of all we load the configuration *)
+let _ = Helm_registry.load_from configuration_file
+let port = Helm_registry.get_int "search_engine.port"
+let pages_dir = Helm_registry.get "search_engine.html_dir"
-let html_of_r_rel pos =
- sprintf
- "<tr><td><input type='checkbox' name='constr_rel' checked='on'/></td><td>%s</td><td><input name='rel_depth' size='2' type='text' value='%s' /></td></tr>"
- (U.text_of_position (pos:>T.full_position)) (U.text_of_depth (pos:>T.full_position) "")
-;;
+let moogle_TPL = pages_dir ^ "/moogle.html"
+let choices_TPL = pages_dir ^ "/moogle_chat.html"
-let html_of_r_sort (pos, sort) =
- sprintf
- "<tr><td><input type='checkbox' name='constr_sort' checked='on'/></td><td>%s</td><td>%s</td><td><input name='sort_depth' size='2' type='text' value='%s'/></td></tr>"
- (U.text_of_sort sort) (U.text_of_position (pos:>T.full_position)) (U.text_of_depth (pos:>T.full_position) "")
-;;
+let my_own_url =
+ let ic = Unix.open_process_in "hostname -f" in
+ let hostname = input_line ic in
+ ignore (Unix.close_process_in ic);
+ sprintf "http://%s:%d" hostname port
+let _ = Helm_registry.set "search_engine.my_own_url" my_own_url
- (** 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>"
-;;
+let bad_request body outchan =
+ Http_daemon.respond_error ~code:(`Status (`Client_error `Bad_request)) ~body
+ outchan
(** chain application of Pcre substitutions *)
let rec apply_substs substs line =
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,
- form_RE, variables_initialization_RE)
+let javascript_quote s =
+ let rex = Pcre.regexp "'" in
+ let rex' = Pcre.regexp "\"" in
+ Pcre.replace ~rex ~templ:"\\'"
+ (Pcre.replace ~rex:rex' ~templ:"\\\"" s)
+let string_tail s =
+ let len = String.length s in
+ String.sub s 1 (len-1)
+let nonvar uri =
+ let s = UriManager.string_of_uri uri in
+ let len = String.length s in
+ let suffix = String.sub s (len-4) 4 in
+ not (suffix = ".var")
+
+let add_param_substs params =
+ List.map
+ (fun (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)
+ params)
+
+let page_RE = Pcre.regexp "¶m\\.page=\\d+"
+let identifier_RE = Pcre.regexp "^\\s*(\\w|')+\\s*$"
+let qualified_mutind_RE =
+ Pcre.regexp "^\\s*cic:(/(\\w|')+)+\\.ind#xpointer\\(1/\\d+\\)\\s*$"
+
+let query_kind_of_req (req: Http_types.request) =
+ match req#path with
+ | "/match" -> "Match"
+ | "/hint" -> "Hint"
+ | "/locate" -> "Locate"
+ | "/elim" -> "Elim"
+ | "/instance" -> "Instance"
+ | _ -> ""
+
+ (* given a uri with a query part in input try to find in it a string
+ * "¶m_name=..." (where param_name is given). If found its value will be
+ * set to param_value. If not, a trailing "¶m_name=param_value" (where
+ * both are given) is added to the input string *)
+let patch_param param_name param_value url =
+ let rex = Pcre.regexp (sprintf "&%s=[^&]*" (Pcre.quote param_name)) in
+ if Pcre.pmatch ~rex url then
+ Pcre.replace ~rex ~templ:(sprintf "%s=%s" param_name param_value) url
+ else
+ sprintf "%s&%s=%s" url param_name param_value
+
+ (** HTML encoding, e.g.: "<" -> "<" *)
+let html_encode = Netencoding.Html.encode_from_latin1
+
+let fold_n_to_m f n m acc =
+ let rec aux acc =
+ function
+ i when i <= m -> aux (f i acc) (i + 1)
+ | _ -> acc
+ in
+ aux acc n
+
+let send_results results
+ ?(id_to_uris = DisambiguateTypes.empty_environment)
+ (req: Http_types.request) outchan
=
- (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@", Pcre.regexp "@FORM@",
- Pcre.regexp "@VARIABLES_INITIALIZATION@")
-let server_and_port_url_RE = Pcre.regexp "^http://([^/]+)/.*$"
-
-let port = Helm_registry.get_int "search_engine.port";;
-
-let pp_error = sprintf "<html><body><h1>Error: %s</h1></body></html>";;
-
-let bad_request body outchan =
- Http_daemon.respond_error ~status:(`Client_error `Bad_request) ~body outchan
-;;
-
-let contype = "Content-Type", "text/html";;
-
-(* SEARCH ENGINE functions *)
-
-let get_constraints term =
- function
- | "/locateInductivePrinciple" ->
- None,
- (CGLocateInductive.get_constraints term),
- (None,None,None)
- | "/searchPattern" ->
- let constr_obj, constr_rel, constr_sort =
- CGSearchPattern.get_constraints term in
- (Some CGSearchPattern.universe),
- (constr_obj, constr_rel, constr_sort),
- (Some constr_obj, Some constr_rel, Some constr_sort)
- | "/matchConclusion" ->
- let list_of_must, only = CGMatchConclusion.get_constraints [] [] term in
-(* FG: there is no way to choose the block number ***************************)
- let block = pred (List.length list_of_must) in
- (Some CGMatchConclusion.universe),
- (List.nth list_of_must block, [], []), (Some only, None, None)
- | _ -> assert false
-;;
-
-(*
- format:
- <must_obj> ':' <must_rel> ':' <must_sort> ':' <only_obj> ':' <only_rel> ':' <only_sort>
-
- <must_*> ::= ('0'|'1') ('_'|<int>) (',' ('0'|'1') ('_'|<int>))*
- <only> ::= '0'|'1'
-*)
-let add_user_constraints ~constraints
- ((obj, rel, sort), (only_obj, only_rel, only_sort))
-=
- let parse_must s =
- let l = Pcre.split ~pat:"," s in
- (try
- List.map
- (fun s ->
- let subs = Pcre.extract ~pat:"^(.)(\\d+|_)$" s in
- (bool_of_string' subs.(1), int_of_string' subs.(2)))
- l
- with
- Not_found -> failwith ("Can't parse constraint string: " ^ constraints)
- )
+ let query_kind = query_kind_of_req req in
+ let interp = try req#param "interp" with Http_types.Param_not_found _ -> "" in
+ let page_link anchor page =
+ try
+ let this = req#param "this" in
+ let target =
+ (patch_param "param.interp" interp
+ (patch_param "param.page" (string_of_int page)
+ this))
+ in
+ let target = Pcre.replace ~pat:"&" ~templ:"&" target in
+ sprintf "<a href=\"%s\">%s</a>" target anchor
+ with Http_types.Param_not_found _ -> ""
in
- (* to be used on "obj" *)
- let add_user_must33 user_must must =
- List.map2
- (fun (b, i) (p, u) ->
- if b then Some (U.set_full_position p i, u) else None)
- user_must must
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan ;
+ Http_daemon.send_header "Content-Type" "text/xml" outchan;
+ Http_daemon.send_CRLF outchan ;
+ let subst =
+ match results with
+ | `Results results ->
+ let page = try int_of_string (req#param "page") with _ -> 1 in
+ let results_no = List.length results in
+ let results_per_page =
+ Helm_registry.get_int "search_engine.results_per_page"
+ in
+ let pages =
+ if results_no mod results_per_page = 0 then
+ results_no / results_per_page
+ else
+ results_no / results_per_page + 1
+ in
+ let pages = if pages = 0 then 1 else pages in
+ let additional_pages = 3 in
+ let (summary, results) = MooglePp.theory_of_result page results in
+ [ tag "PAGE", string_of_int page;
+ tag "PAGES", string_of_int pages ^ " Pages";
+ tag "PAGELIST",
+ (let inf = page - additional_pages in
+ let sup = page + additional_pages in
+ let superinf = inf - (sup - pages) in
+ let supersup = sup + (1 - inf) in
+ let n,m =
+ if inf >= 1 && sup <= pages then
+ inf,sup
+ else if inf < 1 then
+ 1, (if supersup <= pages then supersup else pages)
+ else (* sup > pages *)
+ (if superinf >= 1 then superinf else 1),pages
+ in
+ fold_n_to_m
+ (fun n acc -> acc ^ " " ^
+ (if n = page then string_of_int n
+ else page_link (string_of_int n) n))
+ n m "");
+ tag "PREV_LINK", (if page > 1 then page_link "Prev" (page-1) else "");
+ tag "NEXT_LINK",
+ (if page < pages then page_link "Next" (page+1) else "");
+ tag "QUERY_KIND", query_kind;
+ tag "QUERY_SUMMARY", summary;
+ tag "RESULTS", results ]
+ | `Error msg ->
+ [ tag "PAGE", "1";
+ tag "PAGES", "1 Page";
+ tag "PAGELIST", "";
+ tag "PREV_LINK", "";
+ tag "NEXT_LINK", "";
+ tag "QUERY_KIND", query_kind;
+ tag "QUERY_SUMMARY", "error";
+ tag "RESULTS", msg ]
in
- (* to be used on "rel" *)
- let add_user_must22 user_must must =
- List.map2
- (fun (b, i) p -> if b then Some (U.set_main_position p i) else None)
- user_must must
+ let advanced =
+ try
+ req#param "advanced"
+ with Http_types.Param_not_found _ -> "no"
in
- (* to be used on "sort" *)
- let add_user_must32 user_must must =
- List.map2
- (fun (b, i) (p, s)-> if b then Some (U.set_main_position p i, s) else None)
- user_must must
+ let subst =
+ (tag "SEARCH_ENGINE_URL", my_own_url) ::
+ (tag "ADVANCED", advanced) ::
+ (tag "EXPRESSION", html_encode (req#param "expression")) ::
+ add_param_substs req#params @
+ (if advanced = "no" then
+ [ tag "SIMPLE_CHECKED", "checked='true'";
+ tag "ADVANCED_CHECKED", "" ]
+ else
+ [ tag "SIMPLE_CHECKED", "";
+ tag "ADVANCED_CHECKED", "checked='true'" ]) @
+ subst
in
- match Pcre.split ~pat:":" constraints with
- | [user_obj;user_rel;user_sort;user_only_obj;user_only_rel;user_only_sort] ->
- let
- (user_obj,user_rel,user_sort,user_only_obj,user_only_rel,user_only_sort)
- =
- (parse_must user_obj,
- parse_must user_rel,
- parse_must user_sort,
- bool_of_string' user_only_obj,
- bool_of_string' user_only_rel,
- bool_of_string' user_only_sort)
+ iter_file
+ (fun line ->
+ let new_aliases = DisambiguatePp.pp_environment id_to_uris in
+ let processed_line =
+ apply_substs
+ (* CSC: Bug here: this is a string, not an array! *)
+ ((tag "NEW_ALIASES", "'" ^ javascript_quote new_aliases ^ "'") ::
+ subst)
+ line
in
- let only' =
- (if user_only_obj then only_obj else None),
- (if user_only_rel then only_rel else None),
- (if user_only_sort then only_sort else None)
- in
- let must' =
- let rec filter_some =
- function
- [] -> []
- | None::tl -> filter_some tl
- | (Some x)::tl -> x::(filter_some tl)
- in
- filter_some (add_user_must33 user_obj obj),
- filter_some (add_user_must22 user_rel rel),
- filter_some (add_user_must32 user_sort sort)
- in
- (must', only')
- | _ -> failwith ("Can't parse constraint string: " ^ constraints)
-in
+ output_string outchan (processed_line ^ "\n"))
+ moogle_TPL
+
+let exec_action dbd (req: Http_types.request) outchan =
+ let term_str = req#param "expression" in
+ try
+ if req#path = "/elim" &&
+ not (Pcre.pmatch ~rex:identifier_RE term_str ||
+ Pcre.pmatch ~rex:qualified_mutind_RE term_str) then
+ raise Not_a_MutInd;
+ 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 -> UriManager.uri_of_string
+ (Netencoding.Url.decode u))
+ tail)
+ else
+ f id')
+ | _ -> failwith "Can't parse choices")
+ (fun _ -> None)
+ choices
+ in
+ let id_to_uris = DisambiguatePp.parse_environment id_to_uris_raw in
+ let id_to_choices =
+ try
+ parse_choices (req#param "choices")
+ 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: UriManager.uri list)
+ =
+ match id_to_choices id with
+ | Some choices -> choices
+ | None -> List.filter nonvar choices
+
+ let interactive_interpretation_choice interpretations =
+ match interpretation_choices with
+ | Some l -> l
+ | None ->
+ let html_interpretations =
+ MooglePp.html_of_interpretations interpretations
+ in
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan ;
+ Http_daemon.send_CRLF outchan ;
+ let advanced =
+ try
+ req#param "advanced"
+ with Http_types.Param_not_found _ -> "no"
+ in
+ let query_kind = query_kind_of_req req in
+ iter_file
+ (fun line ->
+ let processed_line =
+ apply_substs
+ [ tag "SEARCH_ENGINE_URL", my_own_url;
+ tag "ADVANCED", advanced;
+ tag "INTERPRETATIONS", html_interpretations;
+ tag "CURRENT_CHOICES", req#param "choices";
+ tag "EXPRESSION", html_encode (req#param "expression");
+ tag "QUERY_KIND", query_kind;
+ tag "QUERY_SUMMARY", "disambiguation";
+ tag "ACTION", string_tail req#path ]
+ line
+ in
+ output_string outchan (processed_line ^ "\n"))
+ choices_TPL;
+ raise Chat_unfinished
-(* HTTP DAEMON CALLBACK *)
+ let input_or_locate_uri ~title ?id () =
+ match id with
+ | Some id -> raise (Unbound_identifier id)
+ | None -> assert false
+ end
+ in
+ let module Disambiguate' = Disambiguate.Make(Chat) in
+ let ast = Grammar.Entry.parse CicNotationParser.term (Stream.of_string term_str) in
+ let (id_to_uris, metasenv, term) =
+ match
+ Disambiguate'.disambiguate_term ~dbd ~context ~metasenv
+ ~aliases:id_to_uris ast
+ with
+ | [id_to_uris,metasenv,term,_] -> id_to_uris,metasenv,term
+ | _ -> assert false
+ in
+ let uris =
+ match req#path with
+ | "/match" -> MetadataQuery.match_term ~dbd term
+ | "/instance" -> MetadataQuery.instance ~dbd term
+ | "/hint" ->
+ let status = ProofEngineTypes.initial_status term metasenv in
+ let intros = PrimitiveTactics.intros_tac () in
+ let subgoals = ProofEngineTypes.apply_tactic intros status in
+ (match subgoals with
+ | proof, [goal] ->
+ let (uri,metasenv,bo,ty) = proof in
+ List.map fst (MetadataQuery.experimental_hint ~dbd (proof, goal))
+ | _ -> assert false)
+ | "/elim" ->
+ let uri =
+ match term with
+ | Cic.MutInd (uri, typeno, _) ->
+ UriManager.uri_of_uriref uri typeno None
+ | _ -> raise Not_a_MutInd
+ in
+ MetadataQuery.elim ~dbd uri
+ | _ -> assert false
+ in
+ let uris = List.map UriManager.string_of_uri uris in
+ send_results ~id_to_uris (`Results uris) req outchan
+ with
+ | Not_a_MutInd ->
+ send_results (`Error (MooglePp.pp_error "Not an inductive type"
+ ("elim requires as input an identifier corresponding to an inductive"
+ ^ " type")))
+ req outchan
-let callback mqi_handle (req: Http_types.request) outchan =
+let callback dbd (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
- let lexbuf = Lexing.from_string query_string in
- let query = MQueryUtil.query_of_text lexbuf in
- let result = MQueryInterpreter.execute mqi_handle query in
- let result_string = pp_result result in
- Http_daemon.respond ~body:result_string ~headers:[contype] outchan
- | "/locate" ->
- let id = req#param "id" in
- let query = G.locate id in
- let result = MQueryInterpreter.execute mqi_handle query in
- Http_daemon.respond ~headers:[contype] ~body:(pp_result result) outchan
- | "/unreferred" ->
- let target = req#param "target" in
- let source = req#param "source" in
- let query = G.unreferred target source in
- let result = MQueryInterpreter.execute mqi_handle query in
- 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
- let page = remove_fragment (req#param "url") in
+ (* TODO implement "is_permitted" *)
+ (let is_permitted page = not (Pcre.pmatch ~pat:"/" page) in
+ let page = req#param "url" in
+ let fname = sprintf "%s/%s" pages_dir page 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;
+ | page when is_permitted page && Sys.file_exists fname ->
+ Http_daemon.send_basic_headers ~code:(`Code 200) outchan;
Http_daemon.send_header "Content-Type" "text/html" outchan;
Http_daemon.send_CRLF outchan;
if preprocess then begin
(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)
- )
+ ((tag "SEARCH_ENGINE_URL", my_own_url) ::
+ (tag "ADVANCED", "no") ::
+ (tag "RESULTS", "") ::
+ add_param_substs req#params)
line) ^
"\n"))
fname
end else
- Http_daemon.send_file ~src:(FileSrc fname) outchan)
+ Http_daemon.send_file ~src:(Http_types.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.http_get url)
- outchan
- else
- Http_daemon.respond
- ~body:(pp_error ("Untrusted UWOBO server: " ^ server_and_port))
- outchan
- | "/searchPattern"
- | "/matchConclusion"
- | "/locateInductivePrinciple" ->
- let term_string = req#param "term" in
- let (context, metasenv) = ([], []) in
- let id_to_uris_raw = req#param "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
- let id_to_uris =
- DisambiguatingParser.EnvironmentP3.of_string id_to_uris_raw in
-print_endline ("id_to_uris_raw: " ^ id_to_uris_raw) ;
-print_endline ("id_to_uris: " ^ (DisambiguatingParser.EnvironmentP3.to_string id_to_uris)) ;
- 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: 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 ->
- let msg = Pcre.replace ~pat:"\'" ~templ:"\\\'" msg in
- (match selection_mode with
- | `SINGLE -> assert false
- | `MULTIPLE ->
- Http_daemon.send_basic_headers ~code:200 outchan ;
- Http_daemon.send_CRLF outchan ;
- 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 ^ "\n"))
- 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) ->
- let id = javascript_quote id in
- let value = javascript_quote value in
- sprintf "alias id %s = %s" id value)
- l)) ^
- "\'")
- interpretations)
- in
- let html_interpretations =
- String.concat ", "
- (List.map
- (fun l ->
- "\'" ^
- (String.concat " "
- (List.map
- (fun (id, value) ->
- let id = javascript_quote id in
- let value = javascript_quote value in
- sprintf "alias id %s = %s"
- id
- (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 =
- apply_substs
- [interpretations_RE, html_interpretations;
- interpretations_labels_RE, html_interpretations_labels]
- line
- in
- output_string outchan (processed_line ^ "\n"))
- 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
+ | "/help" -> Http_daemon.respond ~body:daemon_name outchan
+ | "/locate" ->
+ let initial_expression =
+ try req#param "expression" with Http_types.Param_not_found _ -> ""
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
+ let expression =
+ Pcre.replace ~pat:"\\s*$"
+ (Pcre.replace ~pat:"^\\s*" initial_expression)
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
- let must'', only' =
- (try
- add_user_constraints
- ~constraints:(req#param "constraints")
- (must', only)
- with Http_types.Param_not_found _ ->
- 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:200 outchan ;
- Http_daemon.send_CRLF outchan ;
- iter_file
- (fun line ->
- let processed_line =
- apply_substs
- [form_RE, form ;
- variables_initialization_RE, variables] 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
- Http_daemon.send_basic_headers ~code:200 outchan ;
- Http_daemon.send_CRLF outchan ;
- iter_file
- (fun line ->
- let new_aliases =
- DisambiguatingParser.EnvironmentP3.to_string id_to_uris' in
- let processed_line =
- apply_substs
- [results_RE, theory_of_result results ;
- new_aliases_RE, new_aliases]
- line
- in
- output_string outchan (processed_line ^ "\n"))
- final_results_TPL
+ if expression = "" then
+ send_results (`Results []) req outchan
+ else begin
+ let results = MetadataQuery.locate ~dbd expression in
+ let results = List.map UriManager.string_of_uri results in
+ send_results (`Results results) req outchan
+ end
+ | "/hint"
+ | "/elim"
+ | "/instance"
+ | "/match" -> exec_action dbd req outchan
| invalid_request ->
- Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
+ Http_daemon.respond_error ~code:(`Status (`Client_error `Bad_request))
+ outchan);
debug_print (sprintf "%s done!" req#path)
with
- | Chat_unfinished -> prerr_endline "Chat unfinished, Try again!"
+ | Chat_unfinished -> ()
| Http_types.Param_not_found attr_name ->
bad_request (sprintf "Parameter '%s' is missing" attr_name) outchan
- | exc ->
- let msg = sprintf "Uncaught exception: %s" (Printexc.to_string exc) in
- debug_print msg ;
- Http_daemon.respond ~body:(pp_error msg) outchan
-in
-printf "%s started and listening on port %d\n" daemon_name port;
-printf "Current directory is %s\n" (Sys.getcwd ());
-printf "HTML directory is %s\n" pages_dir;
-flush stdout;
-Unix.putenv "http_proxy" "";
-let mqi_handle = C.init ~log:debug_print () in
-Http_daemon.start' ~port (callback mqi_handle);
-C.close mqi_handle;
-printf "%s is terminating, bye!\n" daemon_name
+ | CicNotationParser.Parse_error (_, msg) ->
+ send_results (`Error (MooglePp.pp_error "Parse error" msg)) req outchan
+ | Unbound_identifier id ->
+ send_results (`Error (MooglePp.pp_error "Unbound identifier" id)) req
+ outchan
+ | exn ->
+ let exn_string = Printexc.to_string exn in
+ debug_print exn_string;
+ let msg = MooglePp.pp_error "Uncaught exception" exn_string in
+ send_results (`Error msg) req outchan
+
+let restore_environment () =
+ match
+ Helm_registry.get_opt Helm_registry.string "search_engine.environment_dump"
+ with
+ | None -> ()
+ | Some fname ->
+ printf "Restoring Cic environment from %s ... " fname; flush stdout;
+ let ic = open_in fname in
+ CicEnvironment.restore_from_channel ic;
+ close_in ic;
+ printf "done!\n"; flush stdout
+
+let read_notation () =
+ CicNotation.load_notation (Helm_registry.get "search_engine.notations");
+ CicNotation.load_notation (Helm_registry.get "search_engine.interpretations")
+
+let _ =
+ printf "%s started and listening on port %d\n" daemon_name port;
+ printf "Current directory is %s\n" (Sys.getcwd ());
+ printf "HTML directory is %s\n" pages_dir;
+ flush stdout;
+ Unix.putenv "http_proxy" "";
+ let dbd =
+ Mysql.quick_connect
+ ~host:(Helm_registry.get "db.host")
+ ~database:(Helm_registry.get "db.database")
+ ~user:(Helm_registry.get "db.user")
+ ()
+ in
+ restore_environment ();
+ read_notation ();
+ Http_daemon.start' ~port (callback dbd);
+ printf "%s is terminating, bye!\n" daemon_name
+
projects / helm.git / blobdiff