+++ /dev/null
-(*
- * Copyright (C) 2003:
- * 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;;
-
-let rec hashtbl_remove_all tbl key =
- if Hashtbl.mem tbl key then begin
- Hashtbl.remove tbl key;
- hashtbl_remove_all tbl key
- end else
- ()
-
- (** follows cut and paste from zack's Http_client_smart module *)
-
-exception Malformed_URL of string;;
-exception Malformed_HTTP_response of string;;
-
-let bufsiz = 16384;;
-let tcp_bufsiz = 4096;;
-
-let body_sep_RE = Pcre.regexp "\r\n\r\n";;
-let http_scheme_RE = Pcre.regexp ~flags:[`CASELESS] "^http://";;
-let url_RE = Pcre.regexp "^([\\w.]+)(:(\\d+))?(/.*)?$";;
-let parse_url url =
- try
- let subs =
- Pcre.extract ~rex:url_RE (Pcre.replace ~rex:http_scheme_RE url)
- in
- (subs.(1),
- (if subs.(2) = "" then 80 else int_of_string subs.(3)),
- (if subs.(4) = "" then "/" else subs.(4)))
- with exc -> raise (Malformed_URL url)
-;;
-let get_body answer =
- match Pcre.split ~rex:body_sep_RE answer with
- | [_; body] -> body
- | _ -> raise (Malformed_HTTP_response answer)
-;;
-
-let init_socket addr port =
- let inet_addr = (Unix.gethostbyname addr).Unix.h_addr_list.(0) in
- let sockaddr = Unix.ADDR_INET (inet_addr, port) in
- let suck = Unix.socket Unix.PF_INET Unix.SOCK_STREAM 0 in
- Unix.connect suck sockaddr;
- let outchan = Unix.out_channel_of_descr suck in
- let inchan = Unix.in_channel_of_descr suck in
- (inchan, outchan)
-;;
-let rec retrieve inchan buf =
- Buffer.add_string buf (input_line inchan ^ "\n");
- retrieve inchan buf
-;;
-
-let http_get_iter_buf ~callback url =
- let (address, port, path) = parse_url url in
- let buf = String.create tcp_bufsiz in
- let (inchan, outchan) = init_socket address port in
- output_string outchan (sprintf "GET %s\r\n" path);
- flush outchan;
- (try
- while true do
- match input inchan buf 0 tcp_bufsiz with
- | 0 -> raise End_of_file
- | bytes when bytes = tcp_bufsiz -> (* buffer full, no need to slice it *)
- callback buf
- | bytes when bytes < tcp_bufsiz -> (* buffer not full, slice it *)
- callback (String.sub buf 0 bytes)
- | _ -> (* ( bytes < 0 ) || ( bytes > tcp_bufsiz ) *)
- assert false
- done
- with End_of_file -> ());
- close_in inchan (* close also outchan, same fd *)
-;;
-
-let http_get url =
- let buf = Buffer.create (tcp_bufsiz * 10) in
- http_get_iter_buf (fun data -> Buffer.add_string buf data) url;
- get_body (Buffer.contents buf)
-;;
-
-let http_post ?(body = "") url =
- let (address, port, path) = parse_url url in
- let (inchan, outchan) = init_socket address port in
- output_string outchan (sprintf "POST %s HTTP/1.0\r\n" path);
- output_string outchan (sprintf "Content-Length: %d\r\n" (String.length body));
- output_string outchan "\r\n";
- output_string outchan body;
- flush outchan;
- let buf = Buffer.create bufsiz in
- (try
- retrieve inchan buf
- with End_of_file -> close_in inchan); (* close also outchan, same fd *)
- get_body (Buffer.contents buf)
-;;
-
projects / helm.git / blobdiff