#! /usr/bin/perl -w
# History: Theory and Culture
# mailto.cgi: The e-mail hyperlink redirector.

#  Copyright (c) 2003-2021 imacat.
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

# Author: imacat <imacat@mail.imacat.idv.tw>
# First written: 2003-05-13

use 5.008;
use strict;
use warnings;
use lib $ENV{"DOCUMENT_ROOT"} . qw(/magicat/lib/perl5);
use Selima::htc;
local $SIG{"__DIE__"} = \&http_500;
my $d = new Selima::Destroy;
# Prototype declaration
sub main();
sub check_post();

use Fcntl qw(:seek);

initenv(-allowed    => [qw(POST)],
        -session    => 0,
        -dbi        => DBI_NONE,
        -lastmod    => 0);

main;
exit 0;

sub main() {
    local ($_, %_);
    my $error;
    
    # Only POSTed forms are allowed
    $error = check_post;
    # If an error occurs
    if (defined $error) {
        http_400;
    
    # Else, save the data
    } else {
        http_303 "mailto:" . $POST->param("email");
    }
    return;
}

# check_post: Check the POSTed form
sub check_post() {
    local ($_, %_);
    my ($checker, $error);
    # Run the checker
    $checker = new Selima::Checker::MailTo(curform);
    $error = $checker->check(qw(email));
    return $error if defined $error;
    # OK
    return;
}