94 lines
2.8 KiB
Perl
94 lines
2.8 KiB
Perl
# Selima Website Content Management System
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# DBILogin.pm: The subroutine to extract the database log in information.
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# Copyright (c) 2006-2018 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: 2006-02-02
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package Selima::DBILogin;
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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(get_dbi_login_info);
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@EXPORT_OK = @EXPORT;
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# Prototype declaration
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sub get_dbi_login_info($;$$);
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}
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use MIME::Base64 qw(decode_base64);
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use Selima::DataVars qw(:db :siteconf);
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# get_dbi_login_info: Obtain the DBI log-in information
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sub get_dbi_login_info($;$$) {
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local ($_, %_);
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my ($type, $host, $user, @names, %login);
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($type, $host, $user) = @_;
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# DBMS naming convensions
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if ($type eq DBI_POSTGRESQL) {
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@names = qw(PGHOST PGUSER PGPASSWORD PGDATABASE);
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} elsif ($type eq DBI_MYSQL) {
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@names = qw(MYSQL_HOST MYSQL_USER MYSQL_PW MYSQL_DB);
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}
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# Initialize the return values
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%login = (
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$names[0] => undef,
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$names[1] => undef,
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$names[2] => undef,
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$names[3] => "test",
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);
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# Obtain the DBI log-in information from the environment
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if (exists $ENV{"SQLLOGIN"}) {
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# Parse the DBI log-in information
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# The first matched line is used, so put the default first
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foreach my $line (split /\n/, decode_base64($ENV{"SQLLOGIN"})) {
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@_ = split /\t/, $line;
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# Skip malformed lines
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next unless @_ == 4;
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# Not this type
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next if $_[0] ne $type;
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# Not this host
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next if defined $host && $_[1] ne $host;
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# Not this user
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next if defined $user && $_[2] ne $user;
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# Found
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# Deal with null values
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foreach (@_) {
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undef $_ if $_ eq "null";
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}
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$login{$names[0]} = $_[1];
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$login{$names[1]} = $_[2];
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$login{$names[2]} = $_[3];
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$login{$names[3]} = $PACKAGE if defined $PACKAGE;
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last;
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}
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}
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# Alternative information set in %DBILOGIN
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foreach (keys %DBILOGIN) {
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$login{$_} = $DBILOGIN{$_} if exists $login{$_};
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}
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return %login;
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}
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return 1;
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