3 OCaml HTTP - do it yourself (fully OCaml) HTTP daemon
5 Copyright (C) <2002-2005> Stefano Zacchiroli <zack@cs.unibo.it>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation, version 2.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
28 type url_syntax_option =
29 Url_part_not_recognized
33 * (1) scheme://user:password@host:port/path;params?query#fragment
36 let request_uri_syntax =
38 Neturl.url_enable_scheme = Neturl.Url_part_not_recognized;
39 url_enable_user = Neturl.Url_part_not_recognized;
40 url_enable_user_param = Neturl.Url_part_not_recognized;
41 url_enable_password = Neturl.Url_part_not_recognized;
42 url_enable_host = Neturl.Url_part_not_recognized;
43 url_enable_port = Neturl.Url_part_not_recognized;
44 url_enable_path = Neturl.Url_part_required;
45 url_enable_param = Neturl.Url_part_not_recognized;
46 url_enable_query = Neturl.Url_part_allowed;
47 url_enable_fragment = Neturl.Url_part_not_recognized;
48 url_enable_other = Neturl.Url_part_not_recognized;
49 url_accepts_8bits = false;
50 url_enable_relative = true;
51 url_is_valid = (fun _ -> true);
55 foo_RE_raw is the uncompiled regexp matching foo
56 foo_RE is the compiled regexp matching foo
57 is_foo is the predicate over string matching foo
60 let separators_RE_raw = "()<>@,;:\\\\\"/\\[\\]?={} \t"
61 let ctls_RE_raw = "\\x00-\\x1F\\x7F"
62 let token_RE_raw = "[^" ^ separators_RE_raw ^ ctls_RE_raw ^ "]+"
63 let lws_RE_raw = "(\r\n)?[ \t]"
64 let quoted_string_RE_raw = "\"(([^\"])|(\\\\\"))*\""
65 let text_RE_raw = "(([^" ^ ctls_RE_raw ^ "])|(" ^ lws_RE_raw ^ "))+"
66 let field_content_RE_raw =
68 "^(((%s)|(%s)|(%s))|(%s))*$"
74 (* following RFC 2616 specifications *)
75 let field_value_RE_raw = "((" ^ field_content_RE_raw ^ ")|(" ^ lws_RE_raw^ "))*"
77 (* smarter implementation: TEXT production is included in the regexp below *)
78 let field_value_RE_raw =
80 "^((%s)|(%s)|(%s)|(%s))*$"
86 let token_RE = Pcre.regexp ("^" ^ token_RE_raw ^ "$")
87 let field_value_RE = Pcre.regexp ("^" ^ field_value_RE_raw ^ "$")
88 let heading_lws_RE = Pcre.regexp (sprintf "^%s*" lws_RE_raw)
89 let trailing_lws_RE = Pcre.regexp (sprintf "%s*$" lws_RE_raw)
91 let is_token s = Pcre.pmatch ~rex:token_RE s
92 let is_field_name = is_token
93 let is_field_value s = Pcre.pmatch ~rex:field_value_RE s
95 let heal_header_name s =
96 if not (is_field_name s) then raise (Invalid_header_name s) else ()
98 let heal_header_value s =
99 if not (is_field_value s) then raise (Invalid_header_value s) else ()
101 let normalize_header_value s =
102 Pcre.replace ~rex:trailing_lws_RE
103 (Pcre.replace ~rex:heading_lws_RE s)
105 let heal_header (name, value) =
106 heal_header_name name;
107 heal_header_value name
109 let url_of_string s =
111 Neturl.url_of_string request_uri_syntax s
112 with Neturl.Malformed_URL -> raise (Malformed_URL s)
114 let string_of_url = Neturl.string_of_url