| 1 | #!/usr/bin/perl |
| 2 | ##--------------------------------------------------------------------------## |
| 3 | ## File: |
| 4 | ## $Id: mesg.cgi.in.dist,v 1.1 2002/09/03 16:30:47 ehood Exp $ |
| 5 | ## Author: |
| 6 | ## Earl Hood earl@earlhood.com |
| 7 | ## Description: |
| 8 | ## POD at end-of-file. |
| 9 | ##--------------------------------------------------------------------------## |
| 10 | ## Copyright (C) 2002 Earl Hood <earl@earlhood.com> |
| 11 | ## |
| 12 | ## This program is free software; you can redistribute it and/or modify |
| 13 | ## it under the terms of the GNU General Public License as published by |
| 14 | ## the Free Software Foundation; either version 2 of the License, or |
| 15 | ## (at your option) any later version. |
| 16 | ## |
| 17 | ## This program is distributed in the hope that it will be useful, |
| 18 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | ## GNU General Public License for more details. |
| 21 | ## |
| 22 | ## You should have received a copy of the GNU General Public License |
| 23 | ## along with this program; if not, write to the Free Software |
| 24 | ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 25 | ## 02111-1307, USA |
| 26 | ##--------------------------------------------------------------------------## |
| 27 | |
| 28 | package MHArc::mesg_cgi; |
| 29 | |
| 30 | use lib '/home/mharc/lib'; |
| 31 | |
| 32 | use Fcntl; |
| 33 | use CGI::Carp; |
| 34 | use MHArc::CGI; |
| 35 | use MHArc::Namazu qw( |
| 36 | nmz_load_rc |
| 37 | nmz_get_field |
| 38 | nmz_msg_id_search |
| 39 | ); |
| 40 | |
| 41 | ############################################################################# |
| 42 | ## BEGIN: Config Section |
| 43 | ############################################################################# |
| 44 | |
| 45 | ## Full pathname to where html archives are located. |
| 46 | my $html_archive_root = '/home/mharc/html'; |
| 47 | |
| 48 | ############################################################################# |
| 49 | ## END: Config Section |
| 50 | ############################################################################# |
| 51 | |
| 52 | $ENV{'PATH'} = '/usr/local/bin:/bin:/usr/bin'; |
| 53 | |
| 54 | ## Query argument name to contain name of archive |
| 55 | my $argname_archive = 'a'; |
| 56 | |
| 57 | ## Query argument name to contain message-id |
| 58 | my $argname_id = 'i'; |
| 59 | |
| 60 | ## Namazu conf file (should be the same used by namazu.cgi) |
| 61 | my $namazurc = '.namazurc'; |
| 62 | |
| 63 | MAIN: { |
| 64 | my $form = MHArc::CGI::parse_input(); |
| 65 | my $archive = $form->{$argname_archive} || ""; |
| 66 | my $id = $form->{$argname_id} || ""; |
| 67 | my $host = $ENV{'HTTP_HOST'} || $ENV{'SERVER_NAME'} || |
| 68 | $ENV{'SERVER_ADDR'} || "localhost"; |
| 69 | my $port = $ENV{'SERVER_PORT'} || ""; |
| 70 | if ($port && $port ne '80') { |
| 71 | $port = ":$port"; |
| 72 | } else { |
| 73 | $port = ""; |
| 74 | } |
| 75 | my $server_url= "http://$host$port"; |
| 76 | |
| 77 | my $list_dir = undef; |
| 78 | if (($id !~ /.\@./) || |
| 79 | ($archive !~ /\S/) || |
| 80 | ($archive =~ /\.\./) || |
| 81 | (! -d ($list_dir = join('/', $html_archive_root,$archive)))) { |
| 82 | warn qq/Invalid arguments: a=$archive, i=$id\n/; |
| 83 | MHArc::CGI::print_input_error(); |
| 84 | last MAIN; |
| 85 | } |
| 86 | |
| 87 | my $nmzrc = nmz_load_rc($namazurc); |
| 88 | if (!defined($nmzrc)) { |
| 89 | MHArc::CGI::print_script_error(); |
| 90 | last MAIN; |
| 91 | } |
| 92 | |
| 93 | my $pathname = find_id($list_dir, $id); |
| 94 | if (!defined($pathname)) { |
| 95 | MHArc::CGI::print_not_found_error(); |
| 96 | last MAIN; |
| 97 | } |
| 98 | if (! -e $pathname) { |
| 99 | warn qq/"$pathname" does not exist\n/; |
| 100 | MHArc::CGI::print_not_found_error(); |
| 101 | last MAIN; |
| 102 | } |
| 103 | |
| 104 | # Apply replace string to pathname |
| 105 | my $url = $pathname; |
| 106 | foreach my $r (@{$nmzrc->{'replace'}}) { |
| 107 | my $pos = index($pathname, $r->[0]); |
| 108 | if ($pos == 0) { |
| 109 | $url = $r->[1] . substr($pathname, length($r->[0])); |
| 110 | last; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | # Print out message page |
| 115 | local(*MESG); |
| 116 | if (!open(MESG, $pathname)) { |
| 117 | warn qq/Unable top open "$pathname": $!\n/; |
| 118 | MHArc::CGI::print_script_error(); |
| 119 | last MAIN; |
| 120 | } |
| 121 | |
| 122 | MHArc::CGI::print_content_type('text/html'); |
| 123 | my $did_base = 0; |
| 124 | my $str; |
| 125 | foreach $str (<MESG>) { |
| 126 | print STDOUT $str; |
| 127 | next if $did_base; |
| 128 | if ($str =~ /<head>/i) { |
| 129 | print STDOUT '<base href="'. $server_url . $url . '">', "\n"; |
| 130 | $did_base = 1; |
| 131 | } |
| 132 | } |
| 133 | close(MESG); |
| 134 | } |
| 135 | |
| 136 | ############################################################################# |
| 137 | ## Generic subroutines for CGI use |
| 138 | ############################################################################# |
| 139 | |
| 140 | sub find_id { |
| 141 | my $list_dir = shift; |
| 142 | my $id = shift; |
| 143 | |
| 144 | my $docid = nmz_msg_id_search($list_dir, $id); |
| 145 | if ($docid < 0) { |
| 146 | return undef; |
| 147 | } |
| 148 | return nmz_get_field($list_dir, $docid, 'uri'); |
| 149 | } |
| 150 | |
| 151 | ######################################################################## |
| 152 | __END__ |
| 153 | |
| 154 | =head1 NAME |
| 155 | |
| 156 | mesg.cgi - mharc CGI program to retrieve a message by message-id |
| 157 | |
| 158 | =head1 SYNOPSIS |
| 159 | |
| 160 | http://.../cgi-bin/mesg.cgi?a=<archive-name>&i=<message-id> |
| 161 | |
| 162 | =head1 DESCRIPTION |
| 163 | |
| 164 | This CGI program retrieves a message from a specified archive with |
| 165 | a give message-id. The CGI program's main purpose is to provide |
| 166 | a persistent URL to archived messages that is immune to archive |
| 167 | rebuilds. |
| 168 | |
| 169 | The CGI program will output the retrieved message to the web client. |
| 170 | The message will have a C<E<lt>base hrefE<gt>> tag added so relative |
| 171 | links in the message page will function properly. |
| 172 | |
| 173 | =head1 CGI OPTIONS |
| 174 | |
| 175 | =over |
| 176 | |
| 177 | =item C<a> |
| 178 | |
| 179 | The name of the archive. Archive names are defined by C<lists.def>. |
| 180 | |
| 181 | =item C<i> |
| 182 | |
| 183 | The message-id. |
| 184 | |
| 185 | =back |
| 186 | |
| 187 | =head1 VERSION |
| 188 | |
| 189 | C<$Id: mesg.cgi.in.dist,v 1.1 2002/09/03 16:30:47 ehood Exp $> |
| 190 | |
| 191 | =head1 AUTHOR |
| 192 | |
| 193 | Earl Hood, earl@earlhood.com |
| 194 | |
| 195 | This module is part of the mharc archiving system and comes with |
| 196 | ABSOLUTELY NO WARRANTY and may be copied only under the terms of |
| 197 | the GNU General Public License, which may be found in the MHArc |
| 198 | distribution. |
| 199 | |
| 200 | =cut |
| 201 | |