Security Code Plug-in installed successfully

step1: 参考了〔廣告章魚與安全碼〕
GD Perl 模块安装。

ppm> install GD

ppm> rep add NewRepSite http://theoryx5.uwinnipeg.ca/ppms/

ppm> search GD

ppm> install GD

Step2:参考了〔给MT加上防范发广告机器人的校验码〕
1)下载SCode plugin，解压缩；

2)编辑解压缩后的SCode.pm，修改my $tmpdir为您服务器的暂存目录，my $scode_length为校验码长度，my $scode_maxtmp为最多同时能够产生多少个校验吗，默认为50，若您的Blog访问人数较多，请适当调整此值；
暂存目录要可读写　例如：c:/website/mt/tmp/

3)修改mt-scode.cgi，$c_background、$c_border、$c_line、$c_code可以设置校验码的颜色；

4)将SCode.pm上传到MT安装目录的lib/MT/目录，scode.pl到plugins/目录，mt-scode.cgi到根目录，并修改mt-scode.cgi属性为可执行；

5）打开lib/MT/App/Comments.pm，找到

if (!$q->param('text')) {
return $app->handle_error($app->translate("Comment text is required."));
}

#
# SecurityCode hack start
#
require MT::SCode;
my $code = $q->param('code');
my $scode = $q->param('scode');
my $sscode = MT::SCode::scode_get($code);
if ($scode ne $sscode) {
return $app->handle_error($app->translate(
"Wrong or missing Security Code."));
}
MT::SCode::scode_delete($code);
MT::SCode::scode_create($code);
#
# Security hack ends
#

6）打开lib/MT/Template/Context.pm，查找_hdlr_comment_fields子函数，

sub _hdlr_comment_fields { my ($ctx, $args, $cond) = @_;

# Security code validation
srand int (time/10)+$$;
my $securitycode = int rand(MT::SCode::scode_tmp()); $securitycode++;
MT::SCode::scode_create($securitycode);
# End Security code hack

再查找两处

<MT_TRANS phrase="Remember me?">
<input type="radio" id="remember" name="bakecookie" />

在其后都添加

<!-- Security Code Check --> <input type="hidden" id="code" name="code" value="$securitycode" /> <label for="scode">Security Code:</label><br /> <img border="0" alt="Please enter the security code you see here" src="$path/mt-scode.cgi?code=$securitycode" /><br /> <input tabindex="3" id="scode" name="scode" /><br /><br /> <!-- end of Security Code Check -->

7）编辑Individual Entry Archive，在

<label for="url">URL</label><br />
<input tabindex="3" id="url" name="url" /><br /><br />

<!-- Security Code Check --> <label for="scode">SCode:</label><br /> <input type="hidden" id="code" name="code" value="<$MTSecurityCode$>" /> <img border="0" src="<$MTCGIPath$><$MTSecurityImage$>?code=<$MTSecurityCode$>"><br /> <input tabindex=3 id="scode" name="scode" /><br /><br /> <!-- end of Security Code Check -->

8）重建您的Blog，校验码就出现了，可以有效防止评论机器人滥发垃圾留言裝