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|
(***********************************************************************)
(* recvmail.ml - Simple (and likely incomplete) interface for *)
(* receiving mail *)
(* *)
(* Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, *)
(* 2011, 2012, 2013 Yaron Minsky and Contributors *)
(* *)
(* This file is part of SKS. SKS 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. *)
(* *)
(* This program 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 this program; if not, write to the Free Software *)
(* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *)
(* USA or see <http://www.gnu.org/licenses/>. *)
(***********************************************************************)
open Common
open StdLabels
open MoreLabels
open Printf
module Unix = UnixLabels
let whitespace = Str.regexp "[ \t\n\r]+"
let eol = Str.regexp "\r?\n"
exception No_colon
let parse_header_line hline =
if String.length hline = 0
then None (* done parsing header *)
else
if hline.[0] = '\t'
then (* this is a continuation, not a new pair *)
Some ("",String.sub ~pos:1 ~len:(String.length hline - 1) hline)
else
try
let colonpos =
try String.index hline ':'
with Not_found -> raise No_colon
in
let key = String.sub hline ~pos:0 ~len:colonpos
and data = String.sub hline ~pos:(colonpos+1)
~len:(String.length hline - colonpos - 1)
in
if String.contains data ' ' then
(* then the colon in question wasn't a real line *)
Some ("",Wserver.strip hline)
else
Some (Wserver.strip key, Wserver.strip data)
with
No_colon -> Some ("",Wserver.strip hline)
let rec parse_header lines header = match lines with
[] ->
(* headers done, no body left *)
(List.rev header,[])
| hline::tl -> match parse_header_line hline with
None -> (List.rev header,tl)
| Some pair -> parse_header tl (pair::header)
(** Given a list of headers where some entries have no keys listed, returns a
list of headers where those keyless entries have been joined into previous
entries.
*)
let rec simplify_headers headers newheaders =
match headers with
[] -> List.rev newheaders
| ("",data)::header_tl ->
(match newheaders with
[] -> failwith "simplify_headers: initial header line lacks field"
| (key,prevdata)::newheader_tl ->
simplify_headers
header_tl ((key,prevdata ^ "\n" ^ data)::newheader_tl)
)
| (key,data)::header_tl ->
simplify_headers header_tl ((key,data)::newheaders)
let simplify_headers headers = simplify_headers headers []
let parse msgtext =
let lines = Str.split eol msgtext in
let (headers,bodylines) = parse_header lines [] in
(*let headers = simplify_headers headers in *)
{ Sendmail.headers = headers;
Sendmail.body = String.concat ~sep:"\n" bodylines;
}
|
