| 1 | ##--------------------------------------------------------------------------## |
| 2 | ## File: |
| 3 | ## $Id: CGI.pm,v 1.2 2002/09/18 17:23:29 ehood Exp $ |
| 4 | ## Description: |
| 5 | ## POD at end of file. |
| 6 | ##--------------------------------------------------------------------------## |
| 7 | ## Copyright (C) 2002 Earl Hood <earl@earlhood.com> |
| 8 | ## |
| 9 | ## This program is free software; you can redistribute it and/or modify |
| 10 | ## it under the terms of the GNU General Public License as published by |
| 11 | ## the Free Software Foundation; either version 2 of the License, or |
| 12 | ## (at your option) any later version. |
| 13 | ## |
| 14 | ## This program is distributed in the hope that it will be useful, |
| 15 | ## but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | ## GNU General Public License for more details. |
| 18 | ## |
| 19 | ## You should have received a copy of the GNU General Public License |
| 20 | ## along with this program; if not, write to the Free Software |
| 21 | ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 22 | ## 02111-1307, USA |
| 23 | ##--------------------------------------------------------------------------## |
| 24 | |
| 25 | package MHArc::CGI; |
| 26 | |
| 27 | use Exporter; |
| 28 | @ISA = qw(Exporter); |
| 29 | |
| 30 | @EXPORT_OK = qw( |
| 31 | &parse_input |
| 32 | &print_content_type |
| 33 | &print_error |
| 34 | &print_forbidden |
| 35 | &print_input_error |
| 36 | &print_location |
| 37 | &print_not_found_error |
| 38 | &print_script_error |
| 39 | ); |
| 40 | |
| 41 | ##--------------------------------------------------------------------------## |
| 42 | |
| 43 | BEGIN { |
| 44 | $Debug = 0; |
| 45 | } |
| 46 | |
| 47 | ##--------------------------------------------------------------------------## |
| 48 | |
| 49 | sub parse_input { |
| 50 | my($method) = ($ENV{"REQUEST_METHOD"}) || 'GET'; |
| 51 | my($data); |
| 52 | if ($method eq "GET") { |
| 53 | $data = $ENV{"QUERY_STRING"} || ""; |
| 54 | } elsif ($method eq "POST") { |
| 55 | read(STDIN, $data, $ENV{"CONTENT_LENGTH"}); |
| 56 | } else { |
| 57 | warn qq/Unknown method: $method/; |
| 58 | return undef; |
| 59 | } |
| 60 | |
| 61 | my(@pairs, $name, $value); |
| 62 | local $_; |
| 63 | |
| 64 | my $form = { }; |
| 65 | if ($data ne '') { |
| 66 | @pairs = split(/&/, $data); |
| 67 | foreach (@pairs) { |
| 68 | ($name, $value) = split(/=/); |
| 69 | $name = expandstr($name); |
| 70 | $value = expandstr($value); |
| 71 | $form->{$name} = $value; |
| 72 | } |
| 73 | } |
| 74 | $form; |
| 75 | } |
| 76 | |
| 77 | sub print_forbidden { |
| 78 | print STDOUT 'Status: 403 Forbidden', "\r\n"; |
| 79 | print_content_type('text/plain'); |
| 80 | print STDOUT "Access Denied\n"; |
| 81 | } |
| 82 | |
| 83 | sub print_input_error { |
| 84 | print STDOUT 'Status: 400 Bad Request', "\r\n"; |
| 85 | print_content_type('text/plain'); |
| 86 | print STDOUT "Input Error\n"; |
| 87 | } |
| 88 | |
| 89 | sub print_error { |
| 90 | print_content_type('text/plain'); |
| 91 | print STDOUT "Script Error\n"; |
| 92 | } |
| 93 | |
| 94 | sub print_not_found_error { |
| 95 | print STDOUT 'Status: 404 Not Found', "\r\n"; |
| 96 | print_content_type('text/plain'); |
| 97 | print STDOUT "Not Found\n"; |
| 98 | } |
| 99 | |
| 100 | sub print_location { |
| 101 | print STDOUT 'Location: ', $_[0], "\r\n\r\n"; |
| 102 | } |
| 103 | |
| 104 | sub print_content_type { |
| 105 | my($type) = shift; |
| 106 | print STDOUT "Content-type: $type\r\n\r\n"; |
| 107 | } |
| 108 | |
| 109 | sub expandstr { |
| 110 | my($str) = shift; |
| 111 | $str =~ tr/+/ /; |
| 112 | $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C", hex($1))/ge; |
| 113 | $str; |
| 114 | } |
| 115 | |
| 116 | ##--------------------------------------------------------------------------## |
| 117 | 1; |
| 118 | __END__ |
| 119 | |
| 120 | =head1 NAME |
| 121 | |
| 122 | MHArc::CGI - General CGI-related utilities for mail archiving system. |
| 123 | |
| 124 | =head1 SYNOPSIS |
| 125 | |
| 126 | use MHArc::CGI; |
| 127 | |
| 128 | =head1 DESCRIPTION |
| 129 | |
| 130 | This module contains a collection of CGI-related utility routines used |
| 131 | by the various mharc CGI programs. |
| 132 | |
| 133 | =head1 VARIABLES |
| 134 | |
| 135 | The following module variables can be set to affect the behavior |
| 136 | of the utility routines: |
| 137 | |
| 138 | =over |
| 139 | |
| 140 | =item C<$Debug> |
| 141 | |
| 142 | If set to a true value, routines will print out debugging information, |
| 143 | if appropriate. |
| 144 | |
| 145 | =back |
| 146 | |
| 147 | =head1 ROUTINES |
| 148 | |
| 149 | By default, no routines are exported into the calling namespace. |
| 150 | Routines in this module can be imported by explicitly listing the |
| 151 | routines to import in the C<use> declaration: |
| 152 | |
| 153 | use MHArc::CGI qw( parse_input ); |
| 154 | |
| 155 | The following routines are availale: |
| 156 | |
| 157 | =over |
| 158 | |
| 159 | =item ... |
| 160 | |
| 161 | =back |
| 162 | |
| 163 | =head1 VERSION |
| 164 | |
| 165 | C<$Id: CGI.pm,v 1.2 2002/09/18 17:23:29 ehood Exp $> |
| 166 | |
| 167 | =head1 AUTHOR |
| 168 | |
| 169 | Earl Hood, earl@earlhood.com |
| 170 | |
| 171 | This module is part of the mharc archiving system and comes with |
| 172 | ABSOLUTELY NO WARRANTY and may be copied only under the terms of |
| 173 | the GNU General Public License, which may be found in the MHArc |
| 174 | distribution. |
| 175 | |
| 176 | =cut |
| 177 | |