mod_perl + mod_authn_dbd不接受AuthDBDUserPWQuery

时间:2017-08-10 09:45:00

标签: apache vhosts mod-perl mod-auth

介绍: 我们公司通过mod_perl使用动态生成的vhost来从我们的数据库生成vhost。我们基本上有一个表“域”,可以为我们的数百个客户和合作伙伴动态修改。

我们有几种具有不同别名,包含和规则的模板。所以我们基本上使用以下Perl脚本来生成不同的模板:

<Perl>
    #!perl

    use DBI;
    use Time::HiRes qw(time);

    use Apache2::ServerUtil ();
    my $s = Apache2::ServerUtil->server;

    $Apache2::PerlSections::Save = 1;

    my $dsn  = "dbi:mysql:...:...";
    my $user = "...";
    my $pw   = "...";
    my $db   = DBI->connect($dsn, $user, $pw) or die $DBI::errstr;

    my $select = qq/SELECT * FROM domains ORDER BY ID/;
    my $sth_select = $db->prepare($select);

    $sth_select->execute() or die $DBI::errstr;
    my @row;
    while( @row = $sth_select->fetchrow_array ) {
        $My::domain = @row[1];
        $My::dir = @row[3];
        $My::template = @row[4];
        $s->add_config(["Include /srv/www/vhosts/templates/".$My::template]);
    }
</Perl>

在模板中,我们通过perl循环中使用的变量定义主机名。

出于预览目的,我们希望使用数据库控制的登录来保护某些项目/域。这就是mod_atuhn_dbd进入游戏的地方。

这是我们针对不同项目的数据库登录的最终解决方案以及实际问题的开始:

<VirtualHost *:80>
    DBDriver   mysql
    DBDParams  "host=... dbname=... port=3306 user=... pass=..."
    DBDMin     1
    DBDKeep    2
    DBDMax     10
    DBDExptime 60

    <Perl>
        use File::Copy;
        $ServerName = $My::domain;
        $DocumentRoot = "/srv/www/".$My::dir;

        $Directory {"/srv/www/".$My::dir} = {
            AllowOverride        => "All",
            Order                => "allow,deny",
            deny                 => "from all",
            Satisfy              => "Any",
            Require              => "valid-user",
            AuthType             => "Basic",
            AuthName             => "Achtung",              
            AuthBasicProvider    => "socache dbd",              
            AuthnCacheProvideFor => "dbd",              
            AuthnCacheContext    => "Test",             
            AuthnCacheTimeout    => "60",
            AuthDBDUserPWQuery   => "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '".$My::dir"' AND `user_name` = %s"               
        };
    </Perl>
</VirtualHost>

问题是 - 阿帕奇说:

apache2[10988]: $parms->add_config() has failed:
AuthDBDUserPWQuery takes one argument, Query used to fetch password for user at /usr/lib/x86_64-linux-gnu/perl5/5.20/Apache2/PerlSections.pm line 216.\n

如果我从perl部分删除指令并将其直接放入vhost,它将按预期工作,用户将获得提示并必须通过数据库参数登录。太糟糕了,没有选项可以在查询中使用动态主机,所以这不会真正起作用。

<VirtualHost *:80>
    <Perl>
        [...]
        $Directory {"/srv/www/".$My::dir} = {
            AllowOverride        => "All",
            Order                => "allow,deny",
            deny                 => "from all",
            Satisfy              => "Any",
            Require              => "valid-user",
            AuthType             => "Basic",
            AuthName             => "Achtung",              
            AuthBasicProvider    => "socache dbd",              
            AuthnCacheProvideFor => "dbd",              
            AuthnCacheContext    => "Test",             
            AuthnCacheTimeout    => "60"        
        };
    </Perl>

    <Directory /srv/www/websites/admin> 
        AuthDBDUserPWQuery "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '[NEED DYNAMIC HOST HERE]' AND `user_name` = %s"
    </Directory>    
</VirtualHost>

以下部分似乎有一些奇怪的问题:

$Directory {"/srv/www/".$My::dir} = {
          [...]
          AuthDBDUserPWQuery   => "SELECT `user_passwd` FROM prev_user` WHERE `host_name` = '".$My::dir"' AND `user_name` = %s"              
};

有什么建议吗?

1 个答案:

答案 0 :(得分:0)

更多信息:

似乎是mod_perl中的错误。清除查询中的空格会导致字符串被解释为一个值。显然,空格会导致字符串被解释为多个值。

所以解决方案是:

$Directory {"/srv/www/".$My::dir} = {
      [...]
      AuthDBDUserPWQuery   => "SELECT`user_passwd`FROM`prev_user`WHERE`host_name`='".$My::dir"'AND`user_name`=%s"
}

非常肮脏和混乱,但它确实有效。