+++ /dev/null
-(*
- * Copyright (C) 2003-2004:
- * Stefano Zacchiroli <zack@cs.unibo.it>
- * for the HELM Team http://helm.cs.unibo.it/
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-open Printf
-
-open Http_getter_common
-open Http_getter_misc
-open Http_getter_debugger
-open Http_getter_types
-
-let (index_line_sep_RE, index_sep_RE, trailing_types_RE,
- heading_cic_RE, heading_theory_RE, heading_nuprl_RE,
- heading_rdf_cic_RE, heading_rdf_theory_RE) =
- (Pcre.regexp "[ \t]+", Pcre.regexp "\r\n|\r|\n",
- Pcre.regexp "\\.types$",
- Pcre.regexp "^cic:", Pcre.regexp "^theory:", Pcre.regexp "^nuprl:",
- Pcre.regexp "^helm:rdf.*//cic:", Pcre.regexp "^helm:rdf.*//theory:")
-
- (* global maps, shared by all threads *)
-
-let cic_map = new Http_getter_map.map Http_getter_env.cic_dbm
-let nuprl_map = new Http_getter_map.map Http_getter_env.nuprl_dbm
-let rdf_map = new Http_getter_map.map Http_getter_env.rdf_dbm
-let xsl_map = new Http_getter_map.map Http_getter_env.xsl_dbm
-
-let maps = [ cic_map; nuprl_map; rdf_map; xsl_map ]
-let close_maps () = List.iter (fun m -> m#close) maps
-let clear_maps () = List.iter (fun m -> m#clear) maps
-let sync_maps () = List.iter (fun m -> m#sync) maps
-
-let map_of_uri = function
- | uri when is_cic_uri uri -> cic_map
- | uri when is_nuprl_uri uri -> nuprl_map
- | uri when is_rdf_uri uri -> rdf_map
- | uri when is_xsl_uri uri -> xsl_map
- | uri -> raise (Unresolvable_URI uri)
-
-let update_from_server logmsg server_url = (* use global maps *)
- debug_print ("Updating information from " ^ server_url);
- let xml_url_of_uri = function
- (* TODO missing sanity checks on server_url, e.g. it can contains $1 *)
- | uri when (Pcre.pmatch ~rex:heading_cic_RE uri) ->
- Pcre.replace ~rex:heading_cic_RE ~templ:server_url uri
- | uri when (Pcre.pmatch ~rex:heading_theory_RE uri) ->
- Pcre.replace ~rex:heading_theory_RE ~templ:server_url uri
- | uri when (Pcre.pmatch ~rex:heading_nuprl_RE uri) ->
- Pcre.replace ~rex:heading_nuprl_RE ~templ:server_url uri
- | uri -> raise (Invalid_URI uri)
- in
- let rdf_url_of_uri = function (* TODO as above *)
- | uri when (Pcre.pmatch ~rex:heading_rdf_cic_RE uri) ->
- Pcre.replace ~rex:heading_rdf_cic_RE ~templ:server_url uri
- | uri when (Pcre.pmatch ~rex:heading_rdf_theory_RE uri) ->
- Pcre.replace ~rex:heading_rdf_theory_RE ~templ:server_url uri
- | uri -> raise (Invalid_URI uri)
- in
- let log = ref (`T ("Processing server: " ^ server_url) :: logmsg) in
- let (xml_index, rdf_index, xsl_index) =
- (* TODO keeps index in memory, is better to keep them on temp files? *)
- (http_get (server_url ^ "/" ^ Http_getter_env.xml_index),
- http_get (server_url ^ "/" ^ Http_getter_env.rdf_index),
- http_get (server_url ^ "/" ^ Http_getter_env.xsl_index))
- in
- if (xml_index = None && rdf_index = None && xsl_index = None) then
- debug_print (sprintf "Warning: useless server %s" server_url);
- (match xml_index with
- | Some xml_index ->
- (log := `T "Updating XML db ...<br />" :: !log;
- List.iter
- (function
- | l when is_blank_line l -> () (* skip blank and commented lines *)
- | l ->
- (try
- (match Pcre.split ~rex:index_line_sep_RE l with
- | [uri; "gz"] ->
- assert (is_cic_uri uri || is_nuprl_uri uri) ;
- (map_of_uri uri)#replace
- uri ((xml_url_of_uri uri) ^ ".xml.gz")
- | [uri] ->
- assert (is_cic_uri uri || is_nuprl_uri uri) ;
- (map_of_uri uri)#replace
- uri ((xml_url_of_uri uri) ^ ".xml")
- | _ -> log := `T ("Ignoring invalid line: '" ^ l) :: !log)
- with Invalid_URI uri ->
- log := `T ("Ignoring invalid XML URI: '" ^ l) :: !log))
- (Pcre.split ~rex:index_sep_RE xml_index); (* xml_index lines *)
- log := `T "All done" :: !log)
- | None -> ());
- (match rdf_index with
- | Some rdf_index ->
- (log := `T "Updating RDF db ..." :: !log;
- List.iter
- (fun l ->
- try
- (match Pcre.split ~rex:index_line_sep_RE l with
- | [uri; "gz"] ->
- rdf_map#replace uri
- ((rdf_url_of_uri uri) ^ ".xml.gz")
- | [uri] ->
- rdf_map#replace uri ((rdf_url_of_uri uri) ^ ".xml")
- | _ -> log := `T ("Ignoring invalid line: '" ^ l) :: !log)
- with Invalid_URI uri ->
- log := `T ("Ignoring invalid RDF URI: '" ^ l) :: !log)
- (Pcre.split ~rex:index_sep_RE rdf_index); (* rdf_index lines *)
- log := `T "All done" :: !log)
- | None -> ());
- (match xsl_index with
- | Some xsl_index ->
- (log := `T "Updating XSLT db ..." :: !log;
- List.iter
- (fun l -> xsl_map#replace l (server_url ^ "/" ^ l))
- (Pcre.split ~rex:index_sep_RE xsl_index);
- log := `T "All done" :: !log)
- | None -> ());
- debug_print "done with this server";
- !log
-
-let update_from_all_servers () = (* use global maps *)
- clear_maps ();
- let log =
- List.fold_left
- update_from_server
- [] (* initial logmsg: empty *)
- (* reverse order: 1st server is the most important one *)
- (List.map snd (List.rev (Http_getter_env.servers ())))
- in
- sync_maps ();
- `Msg (`L (List.rev log))
-
-let update_from_one_server server_url =
- let log = update_from_server [] server_url in
- `Msg (`L (List.rev log))
-
-let temp_file_of_uri uri =
- let flat_string s s' c =
- let cs = String.copy s in
- for i = 0 to (String.length s) - 1 do
- if String.contains s' s.[i] then cs.[i] <- c
- done;
- cs
- in
- let user = try Unix.getlogin () with _ -> "" in
- Filename.open_temp_file (user ^ flat_string uri ".-=:;!?/&" '_') ""
-
-(* API *)
-
-let help () = Http_getter_const.usage_string (Http_getter_env.env_to_string ())
-
-let resolve uri =
- try
- (map_of_uri uri)#resolve uri
- with Http_getter_map.Key_not_found _ -> raise (Unresolvable_URI uri)
-
- (* Warning: this fail if uri is already registered *)
-let register ~uri ~url = (map_of_uri uri)#add uri url
-
-let update () = update_from_all_servers ()
-
-let getxml ?(format = Enc_normal) ?(patch_dtd = true) uri =
- let url = resolve uri in
- let (fname, outchan) = temp_file_of_uri uri in
- Http_getter_cache.respond_xml ~uri ~url ~enc:format ~patch:patch_dtd outchan;
- close_out outchan;
- fname
-
-let getxslt ?(patch_dtd = true) uri =
- let url = resolve uri in
- let (fname, outchan) = temp_file_of_uri uri in
- Http_getter_cache.respond_xsl ~url ~patch:patch_dtd outchan;
- close_out outchan;
- fname
-
-let getdtd ?(patch_dtd = true) uri =
- let url = Http_getter_env.dtd_dir ^ "/" ^ uri in
- let (fname, outchan) = temp_file_of_uri uri in
- Http_getter_cache.respond_dtd ~url ~patch:patch_dtd outchan;
- close_out outchan;
- fname
-
-let clean_cache () = Http_getter_cache.clean ()
-
-let list_servers () = Http_getter_env.servers ()
-
-let add_server ?(position = 0) name =
- if position = 0 then begin
- Http_getter_env.add_server ~position:0 name;
- update_from_one_server name (* quick update (new server only) *)
- end else if position > 0 then begin
- Http_getter_env.add_server ~position name;
- update ()
- end else (* already checked bt parse_position *)
- assert false
-
-let remove_server position =
- let server_name =
- try
- List.assoc position (Http_getter_env.servers ())
- with Not_found ->
- raise (Invalid_argument (sprintf "no server with position %d" position))
- in
- Http_getter_env.remove_server position;
- update ()
-
-let return_uris map filter =
- let uris = ref [] in
- map#iter (fun uri _ -> if filter uri then uris := uri :: !uris);
- List.rev !uris
-
-let getalluris () =
- let filter uri =
- (Pcre.pmatch ~rex:heading_cic_RE uri) &&
- not (Pcre.pmatch ~rex:trailing_types_RE uri)
- in
- return_uris cic_map filter
-
-let getallrdfuris classs =
- let filter =
- let base = "^helm:rdf:www\\.cs\\.unibo\\.it/helm/rdf/" in
- match classs with
- | `Forward -> (fun uri -> Pcre.pmatch ~pat:(base ^ "forward") uri)
- | `Backward -> (fun uri -> Pcre.pmatch ~pat:(base ^ "backward") uri)
- in
- return_uris rdf_map filter
-
-let ls =
- let (++) (oldann, oldtypes, oldbody, oldtree)
- (newann, newtypes, newbody, newtree) =
- ((if newann > oldann then newann else oldann),
- (if newtypes > oldtypes then newtypes else oldtypes),
- (if newbody > oldbody then newbody else oldbody),
- (if newtree > oldtree then newtree else oldtree))
- in
- let basepart_RE =
- Pcre.regexp
- "^([^.]*\\.[^.]*)((\\.body)|(\\.proof_tree)|(\\.types))?(\\.ann)?$"
- in
- let (types_RE, types_ann_RE, body_RE, body_ann_RE,
- proof_tree_RE, proof_tree_ann_RE) =
- (Pcre.regexp "\\.types$", Pcre.regexp "\\.types\\.ann$",
- Pcre.regexp "\\.body$", Pcre.regexp "\\.body\\.ann$",
- Pcre.regexp "\\.proof_tree$", Pcre.regexp "\\.proof_tree\\.ann$")
- in
- let (slash_RE, til_slash_RE, no_slashes_RE) =
- (Pcre.regexp "/", Pcre.regexp "^.*/", Pcre.regexp "^[^/]*$")
- in
- fun lsuri ->
- let pat =
- "^" ^
- (match lsuri with Cic p -> ("cic:" ^ p) | Theory p -> ("theory:" ^ p))
- in
- let (dir_RE, obj_RE) =
- (Pcre.regexp (pat ^ "/"), Pcre.regexp (pat ^ "(\\.|$)"))
- in
- let dirs = ref StringSet.empty in
- let objs = Hashtbl.create 17 in
- let store_dir d =
- dirs := StringSet.add (List.hd (Pcre.split ~rex:slash_RE d)) !dirs
- in
- let store_obj o =
- let basepart = Pcre.replace ~rex:basepart_RE ~templ:"$1" o in
- let no_flags = false, No, No, No in
- let oldflags =
- try
- Hashtbl.find objs basepart
- with Not_found -> (* no ann, no types, no body, no proof tree *)
- no_flags
- in
- let newflags =
- match o with
- | s when Pcre.pmatch ~rex:types_RE s -> (false, Yes, No, No)
- | s when Pcre.pmatch ~rex:types_ann_RE s -> (true, Ann, No, No)
- | s when Pcre.pmatch ~rex:body_RE s -> (false, No, Yes, No)
- | s when Pcre.pmatch ~rex:body_ann_RE s -> (true, No, Ann, No)
- | s when Pcre.pmatch ~rex:proof_tree_RE s -> (false, No, No, Yes)
- | s when Pcre.pmatch ~rex:proof_tree_ann_RE s -> (true, No, No, Ann)
- | s -> no_flags
- in
- Hashtbl.replace objs basepart (oldflags ++ newflags)
- in
- cic_map#iter
- (* BLEARGH Dbm module lacks support for fold-like functions *)
- (fun key _ ->
- match key with
- | uri when Pcre.pmatch ~rex:dir_RE uri -> (* directory hit *)
- let localpart = Pcre.replace ~rex:dir_RE uri in
- if Pcre.pmatch ~rex:no_slashes_RE localpart then
- store_obj localpart
- else
- store_dir localpart
- | uri when Pcre.pmatch ~rex:obj_RE uri -> (* file hit *)
- store_obj (Pcre.replace ~rex:til_slash_RE uri)
- | uri -> () (* miss *));
- let ls_items = ref [] in
- StringSet.iter (fun dir -> ls_items := Ls_section dir :: !ls_items) !dirs;
- Http_getter_misc.hashtbl_sorted_iter
- (fun uri (annflag, typesflag, bodyflag, treeflag) ->
- ls_items :=
- Ls_object {
- uri = uri; ann = annflag;
- types = typesflag; body = typesflag; proof_tree = treeflag
- } :: !ls_items)
- objs;
- List.rev !ls_items
-
projects / helm.git / blobdiff