63 lines
1.7 KiB
Perl
63 lines
1.7 KiB
Perl
# Selima Website Content Management System
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# Server.pm: The server software identifiers.
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# Copyright (c) 2004-2018 imacat.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Author: imacat <imacat@mail.imacat.idv.tw>
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# First written: 2004-09-12
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package Selima::Server;
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use 5.008;
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use strict;
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use warnings;
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use base qw(Exporter);
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use vars qw(@EXPORT @EXPORT_OK);
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BEGIN {
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@EXPORT = qw(is_apache is_iis);
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@EXPORT_OK = @EXPORT;
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# Prototype declaration
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sub is_apache();
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sub is_iis();
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}
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use Selima::DataVars qw(:env);
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# The result never changes in any circumstances
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use vars qw($IS_APACHE $IS_IIS);
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undef $IS_APACHE;
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undef $IS_IIS;
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# is_apache: If this server is Apache
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sub is_apache() {
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# Checked before
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return $IS_APACHE if defined $IS_APACHE;
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# mod_perl always run on Apache
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return ($IS_APACHE = 1) if $IS_MODPERL;
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# Check from SERVER_SOFTWARE
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return ($IS_APACHE = ($ENV{"SERVER_SOFTWARE"} =~ /^Apache\b/? 1: 0));
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}
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# is_iis: If this server is Microsoft-IIS
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sub is_iis() {
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# Checked before
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return $IS_IIS if defined $IS_IIS;
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# mod_perl never run on Microsoft-IIS
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return ($IS_IIS = 0) if $IS_MODPERL;
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# Check from SERVER_SOFTWARE
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return ($IS_IIS = ($ENV{"SERVER_SOFTWARE"} =~ /^Microsoft-(?:IIS|PWS)\b/? 1: 0));
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}
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return 1;
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