1 % $Id: t-prot.sl,v 1.18 2010/02/19 16:21:14 jochen Exp $
2 % Copyright (c) 2003-2005 Jochen Striepe <t-prot@tolot.escape.de>
4 % This file is provided as an example implemention for articles to be
5 % filtered through t-prot before displayed. They are still filtered if
6 % you reply to such a message so you will have to deactivate this if
7 % you want to include quotes of the original article.
9 % Activate this macro by adding
13 % If you are not happy with the suggested t-prot default parameters,
15 % variable t_prot_params = "-c -emtS";
16 % variable t_prot_tmpdir = "$HOME/.tmpdir";
17 % variable t_prot_qp = "";
18 % into ~/.slrn/t-prot-cfg and add
19 % interpret .slrn/t-prot-cfg
20 % to your ~/.slrnrc (after 'interpret t-prot.sl'). If "mimedecode" is
21 % installed on your system you might want to use
22 % variable t_prot_qp = "mimedecode";
23 % You can get mimedecode at
24 % http://packages.debian.org/stable/mail/mimedecode.html
26 % However, please keep in mind that the path of the temp directory should
27 % NOT be readable to other users -- otherwise it might reveal information on
28 % what you read, and probably even be a security hole. Please see t-prot's
29 % man page for details on command line parameters.
31 % If you want to toggle t-prot filtering on/off without leaving slrn,
32 % you may want to add something like
33 % setkey article register_t_prot "\e6"
34 % setkey article unregister_t_prot "\e7"
35 % to your ~/.slrnrc -- press ESC-6 to activate t-prot filtering, and
36 % ESC-7 to disable it (this will take effect on the next article you
37 % read, see the package's TODO file).
39 % Requirements/Bugs: tr(1) and rm(1) are POSIX and should be available
40 % on any Unix-like system, mktemp(1) should be available on any recent
41 % OpenBSD or Debian Linux system -- you can get the sources there
42 % if your system happens to lack this program. This macro has been
43 % tested with slrn-0.9.7.4 to slrn-0.9.8.0 and S-Lang v1.4.5, it might
44 % fail with other versions (and will definitely fail with S-Lang v2.x).
45 % As always, bug reports, patches (preferrably in unified diff format),
46 % comments and suggestions are welcome.
48 % License: This file is part of the t-prot package and therefore
49 % available under the same conditions. See t-prot's man page for
53 % these should be reasonable defaults (they work fine for me, SCNR):
54 variable t_prot_params = "-aeklmtc -S --diff --bigq -L$HOME/.slrn/mlfooters -A$HOME/.slrn/adfooters";
55 variable t_prot_tmpdir = "$HOME/tmp/slrn"; % you better make sure it exists
56 variable t_prot_qp = "perl -i -p -e '$p=1 if /^Content-Transfer-Encoding: quoted-printable/i; if ($p==1) { s/=([0-9a-f][0-9a-f])/chr(hex($1))/egi; s/=\n//eg; };'";
59 variable art, f, fname, line, qp;
62 % Keep in mind that the path should NOT be readable to other users --
63 % otherwise it might reveal information on what you read, and probably
64 % even be a security hole:
65 f = popen ("mktemp -q "+t_prot_tmpdir+"/t-prot.sl.XXXXXX | tr -d '\n'", "r");
66 if (f == NULL) return;
67 if (-1 == fgets (&fname, f)) return;
71 if (t_prot_qp != "") { qp = t_prot_qp+"|"; } else { qp = ""; }
73 f = popen (qp+"t-prot "+t_prot_params+" >"+fname, "w");
75 error ("Unable to filter article to "+fname);
78 () = fputs (article_as_string(), f);
82 f = fopen (fname, "r");
84 error (fname+" could not be opened.");
87 while (-1 != fgets (&line, f)) {
92 if (0 != remove(fname)) error ("Unable to remove "+fname);
94 replace_article (art);
97 define register_t_prot () {
98 if (1 == register_hook("read_article_hook", "t_prot")) {
99 error("t-prot filtering activated");
102 error("t-prot filtering NOT activated");
106 define unregister_t_prot () {
107 if (1 == unregister_hook("read_article_hook", "t_prot")) {
108 error("t-prot filtering deactivated");
111 error("t-prot filtering NOT deactivated");
115 % filtering is enabled by default:
116 register_hook("read_article_hook", "t_prot");