--- /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 Pxp_document
+open Pxp_types
+open Pxp_yacc
+
+open Http_getter_types
+
+let version = Http_getter_const.version
+
+let servers_file = lazy (Helm_registry.get "getter.servers_file")
+let cic_dbm = lazy (Helm_registry.get "getter.cic_dbm")
+let nuprl_dbm = lazy (Helm_registry.get "getter.nuprl_dbm")
+let rdf_dbm = lazy (Helm_registry.get "getter.rdf_dbm")
+let xsl_dbm = lazy (Helm_registry.get "getter.xsl_dbm")
+let xml_index = lazy (Helm_registry.get "getter.xml_indexname")
+let rdf_index = lazy (Helm_registry.get "getter.rdf_indexname")
+let xsl_index = lazy (Helm_registry.get "getter.xsl_indexname")
+let cic_dir = lazy (Helm_registry.get "getter.cic_dir")
+let nuprl_dir = lazy (Helm_registry.get "getter.nuprl_dir")
+let rdf_dir = lazy (Helm_registry.get "getter.rdf_dir")
+let dtd_dir = lazy (Helm_registry.get "getter.dtd_dir")
+let dtd_base_url = lazy (Helm_registry.get "getter.dtd_base_url")
+let port = lazy (Helm_registry.get_int "getter.port")
+
+let _servers = ref None
+
+let servers =
+ lazy
+ (match !_servers with
+ | None -> failwith "Getter not yet initialized: servers not available"
+ | Some servers -> servers)
+
+let load_servers () =
+ let pos = ref (-1) in
+ List.rev (Http_getter_misc.fold_file
+ (fun line servers ->
+ if Http_getter_misc.is_blank_line line then
+ servers
+ else
+ (incr pos; (!pos, line) :: servers))
+ []
+ (Lazy.force servers_file))
+
+let reload_servers () = _servers := Some (load_servers ())
+
+let save_servers () =
+ let oc = open_out (Lazy.force servers_file) in
+ List.iter (fun (_,server) -> output_string oc (server ^ "\n"))
+ (Lazy.force servers);
+ close_out oc
+
+let host =
+ lazy
+ (let buf = Buffer.create 20 in
+ Shell.call ~stdout:(Shell.to_buffer buf) [Shell.cmd "hostname" ["-f"]];
+ Pcre.replace ~pat:"\n+$" (Buffer.contents buf))
+
+let my_own_url =
+ lazy
+ (let (host, port) = (Lazy.force host, Lazy.force port) in
+ sprintf "http://%s%s" (* without trailing '/' *)
+ host (if port = 80 then "" else (sprintf ":%d" port)))
+
+let cache_mode =
+ lazy
+ (match String.lowercase (Helm_registry.get "getter.cache_mode") with
+ | "normal" -> Enc_normal
+ | "gz" -> Enc_gzipped
+ | mode -> failwith ("Invalid cache mode: " ^ mode))
+
+let reload () = reload_servers ()
+
+let env_to_string () =
+ sprintf
+"HTTP Getter %s (the OCaml one!)
+
+cic_dbm:\t%s
+nuprl_dbm:\t%s
+rdf_dbm:\t%s
+xsl_dbm:\t%s
+xml_index:\t%s
+rdf_index:\t%s
+xsl_index:\t%s
+cic_dir:\t%s
+nuprl_dir:\t%s
+rdf_dir:\t%s
+dtd_dir:\t%s
+servers_file:\t%s
+host:\t\t%s
+port:\t\t%d
+my_own_url:\t%s
+dtd_base_url:\t%s
+cache_mode:\t%s
+servers:
+\t%s
+"
+ version (Lazy.force cic_dbm) (Lazy.force nuprl_dbm) (Lazy.force rdf_dbm)
+ (Lazy.force xsl_dbm) (Lazy.force xml_index)
+ (Lazy.force rdf_index) (Lazy.force xsl_index) (Lazy.force cic_dir)
+ (Lazy.force nuprl_dir) (Lazy.force rdf_dir)
+ (Lazy.force dtd_dir) (Lazy.force servers_file) (Lazy.force host)
+ (Lazy.force port) (Lazy.force my_own_url)
+ (Lazy.force dtd_base_url)
+ (match Lazy.force cache_mode with Enc_normal -> "Normal" | Enc_gzipped -> "GZipped")
+ (String.concat "\n\t" (* (position * server) list *)
+ (List.map (fun (pos, server) -> sprintf "%3d: %s" pos server)
+ (Lazy.force servers)))
+
+let add_server ?position url =
+ let new_servers =
+ let servers = Lazy.force servers in
+ match position with
+ | None -> servers @ [-1, url];
+ | Some p when p > 0 ->
+ let rec add_after pos = function
+ | [] -> [-1, url]
+ | hd :: tl when p = 1 -> hd :: (-1, url) :: tl
+ | hd :: tl (* when p > 1 *) -> hd :: (add_after (pos - 1) tl)
+ in
+ add_after p servers
+ | Some _ -> assert false
+ in
+ _servers := Some new_servers;
+ save_servers ();
+ reload_servers ()
+
+let remove_server position =
+ _servers := Some (List.remove_assoc position (Lazy.force servers));
+ save_servers ();
+ reload_servers ()
+
projects / helm.git / blobdiff