X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=helm%2Focaml%2Fgetter%2Fhttp_getter_common.ml;fp=helm%2Focaml%2Fgetter%2Fhttp_getter_common.ml;h=0000000000000000000000000000000000000000;hp=a4ca3bf1cfaabafb8116ee3a7cae8c25d8c3bb99;hb=1696761e4b8576e8ed81caa905fd108717019226;hpb=5325734bc2e4927ed7ec146e35a6f0f2b49f50c1 diff --git a/helm/ocaml/getter/http_getter_common.ml b/helm/ocaml/getter/http_getter_common.ml deleted file mode 100644 index a4ca3bf1c..000000000 --- a/helm/ocaml/getter/http_getter_common.ml +++ /dev/null @@ -1,158 +0,0 @@ -(* - * Copyright (C) 2003-2004: - * Stefano Zacchiroli - * 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 Http_getter_types;; -open Printf;; - -let string_of_ls_flag = function No -> "NO" | Yes -> "YES" | Ann -> "ANN" -let string_of_encoding = function - | `Normal -> "Normal" - | `Gzipped -> "GZipped" - -let is_cic_obj_uri uri = Pcre.pmatch ~pat:"^cic:" uri -let is_theory_uri uri = Pcre.pmatch ~pat:"^theory:" uri -let is_cic_uri uri = is_cic_obj_uri uri || is_theory_uri uri -let is_nuprl_uri uri = Pcre.pmatch ~pat:"^nuprl:" uri -let is_rdf_uri uri = Pcre.pmatch ~pat:"^helm:rdf(.*):(.*)//(.*)" uri -let is_xsl_uri uri = Pcre.pmatch ~pat:"^\\w+\\.xsl" uri - -let rec uri_of_string = function - | uri when is_rdf_uri uri -> - (match Pcre.split ~pat:"//" uri with - | [ prefix; uri ] -> - let rest = - match uri_of_string uri with - | Cic_uri xmluri -> xmluri - | _ -> raise (Invalid_URI uri) - in - Rdf_uri (prefix, rest) - | _ -> raise (Invalid_URI uri)) - | uri when is_cic_uri uri -> Cic_uri (Cic (Pcre.replace ~pat:"^cic:" uri)) - | uri when is_nuprl_uri uri -> Nuprl_uri (Pcre.replace ~pat:"^nuprl:" uri) - | uri when is_theory_uri uri -> - Cic_uri (Theory (Pcre.replace ~pat:"^theory:" uri)) - | uri -> raise (Invalid_URI uri) - -let patch_xsl ?(via_http = true) () = - fun line -> - let mk_patch_fun tag line = - Pcre.replace - ~pat:(sprintf "%s\\s+href=\"" tag) - ~templ:(sprintf "%s href=\"%s/getxslt?uri=" - tag (Lazy.force Http_getter_env.my_own_url)) - line - in - let (patch_import, patch_include) = - (mk_patch_fun "xsl:import", mk_patch_fun "xsl:include") - in - patch_include (patch_import line) - -let patch_system kind ?(via_http = true) () = - let rex = - Pcre.regexp (sprintf "%s (.*) SYSTEM\\s+\"((%s)/)?" kind - (String.concat "|" (Lazy.force Http_getter_env.dtd_base_urls))) - in - let templ = - if via_http then - sprintf "%s $1 SYSTEM \"%s/getdtd?uri=" kind - (Lazy.force Http_getter_env.my_own_url) - else - sprintf "%s $1 SYSTEM \"file://%s/" kind - (Lazy.force Http_getter_env.dtd_dir) - in - fun line -> Pcre.replace ~rex ~templ line - -let patch_entity = patch_system "ENTITY" -let patch_doctype = patch_system "DOCTYPE" - -let patch_xmlbase = - let rex = Pcre.regexp "^(\\s*<\\w[^ ]*)(\\s|>)" in - fun xmlbases baseurl baseuri s -> - let s' = - Pcre.replace ~rex - ~templ:(sprintf "$1 xml:base=\"%s\" helm:base=\"%s\"$2" baseurl baseuri) - s - in - if s <> s' then xmlbases := None; - s' - -let patch_dtd = patch_entity -let patch_xml ?via_http ?xmlbases () = - let xmlbases = ref xmlbases in - fun line -> - match !xmlbases with - | None -> patch_doctype ?via_http () (patch_entity ?via_http () line) - | Some (xmlbaseuri, xmlbaseurl) -> - patch_xmlbase xmlbases xmlbaseurl xmlbaseuri - (patch_doctype ?via_http () (patch_entity ?via_http () line)) - -let return_file - ~fname ?contype ?contenc - ?(patch_fun = fun x -> x) ?(gunzip = false) ?(via_http = true) outchan - = - let headers = - match (contype, contenc) with - | (Some t, Some e) -> ["Content-Encoding", e; "Content-Type", t] - | (Some t, None) -> ["Content-Type" , t] - | (None, Some e) -> ["Content-Encoding", e] - | (None, None) -> [] - in - if via_http then begin - Http_daemon.send_basic_headers ~code:200 outchan; - Http_daemon.send_headers headers outchan; - Http_daemon.send_CRLF outchan - end; - if gunzip then begin (* gunzip needed, uncompress file, apply patch_fun to - it, compress the result and sent it to client *) - let (tmp1, tmp2) = - (Http_getter_misc.tempfile (), Http_getter_misc.tempfile ()) - in - try - Http_getter_misc.gunzip ~keep:true ~output:tmp1 fname;(* gunzip to tmp1 *) - let new_file = open_out tmp2 in - Http_getter_misc.iter_file (* tmp2 = patch(tmp1) *) - (fun line -> - output_string new_file (patch_fun line ^ "\n"); - flush outchan) - tmp1; - close_out new_file; - Http_getter_misc.gzip ~output:tmp1 tmp2; (* tmp1 = gzip(tmp2); rm tmp2 *) - Http_getter_misc.iter_file (* send tmp1 to client as is*) - (fun line -> output_string outchan (line ^ "\n"); flush outchan) - tmp1; - Sys.remove tmp1 (* rm tmp1 *) - with e -> - Sys.remove tmp1; - raise e - end else begin (* no need to gunzip, apply patch_fun directly to file *) - Http_getter_misc.iter_file - (fun line -> output_string outchan (patch_fun line ^ "\n"); flush outchan) - fname; - end -;; -