在沒有設定的情況下,我找不到哪裡可以填驗證碼?…^_^
(當然已經激活了!)

ss：你可以试试访问：http://140.116.155.51/ssblog/index.php?image=1137635324
看看有没有图片出来，或者有没有什么错误显示，这个插件我只在 wp 2.0 中试过，另外，能否告知你的 PHP 版本以及是否有 GD 扩展。

Nio:
可正確顯示圖片,但是在comments的地方無法正確顯示出來,是否需要在theme/comments.php裡面做修改呢?

ss：我用的是：
add_action(’comment_form’, array(&$this, ‘comment_form’));
但有可能有些 theme 的 comments.php 文件中没有加上这个 action，你可以查看一下你的 theme/currenttheme/comments.php 文件，看看表单结束标签（</form>）上边是否有如下代码：
<?php do_action(’comment_form’, $post->ID); ?>
如果没有，则加上应该就可以了。

Nio:
萬分感激,搞定囉~..^_^

老大，您的链接失效了。

Mac：不好意思，上回换了目录，忘了改这个 post 了，现在已经可以了

Hello,

just looking for a nice little CaptchaTool for WP.
Your plugin looks cool, but I can not get it to work. What do xou mean with “If it can’t found, please add it in comment form.” I don’t get it right away. But that might be, because i am too tired

Greets from Germany

hi, Andrej
I mean that the code (do_action(’comment_form’, $post->ID)) maybe doesn’t exist in comment file (theme/currenttheme/comments.php), and you need add the code yourself.

I am having problems with this where the commentor hits the submit button, and even though the required image code is written correctly, It takes them to a page saying that the security code is invalid, please click back on your browser…
This happens everytime, then when the commentor tries a second time, it works perfectly.

Any ideas?

hi, spresser.
I have tested the security code in your blog. It worked fine. Maybe some commentors disable browser cookie or their computer datetime is wrong.

Thank you very much for your plugin !
It’s a nice piece of work. [works well with K2 theme under WP 2.0.2]

Hi Nio

I install your plugin. However, the security image did not appear. Do I need to install other extension?

Hi Danny
It only needs PHP GD extension, and format of the image is PNG.

——– from PHP Manual ——–
The format of images you are able to manipulate depend on the version of GD you install, and any other libraries GD might need to access those image formats. Versions of GD older than gd-1.6 support GIF format images, and do not support PNG, where versions greater than gd-1.6 and less than gd-2.0.28 support PNG, not GIF. GIF support was re-enabled in gd-2.0.28.
——————————–

You can write a php file, and input codes below:
<?php
var_dump(gd_info());
?>
The typical output is :
….
[”PNG Support”]=>
bool(true)
….
If “PNG Support” is false, maybe your GD lib version is older than gd-1.6. Perhaps it’s a bug, and I will fix it soon.

I have just updated the gid lib. It is working now. Thanks Nio.

正是我需要的验证码功能！谢谢你写的这个插件！

hi, i installed the plugin. it works nice. good work. but i get the following error on IE in the first loading of the page. but not in firefox. after refreshing the error disappear.
what might be causing this error?
thanks..
Warning: ob_start(): output handler ‘ob_gzhandler’ cannot be used after ‘URL-Rewriter’ in /wp-includes/functions.php on line 585

hi eser s.
It seems that this is WordPress error, not the plugin. Maybe you have opened zlib.output_compression in your php.ini, and you can close it (zlib.output_compression = Off) to fix this warning.

I also get this ob_gzhandler error after activating this plugin, even in firefox. Unfortunately I do not have access to the php.ini as my website is run in a shared environment. Are there any other possibilities to disable this?

Anyway, after the first reload the warning is gone.

Ok, I have fixed this bug. You can download new version (v0.3) and try it again. If it work fine, tell me please. Thx.

Sorry, did not help. The error still appears upon first load of the page.

Just noticed that on my blog the error seems to appear in a different line number (don’t know if that is caused by a different theme):
Warning: ob_start(): output handler ‘ob_gzhandler’ cannot be used after ‘URL-Rewriter’ in /www/htdocs/w0056ce5/blog/wp-includes/functions.php on line 829

hi, Yaba.
You can goto WordPress site admin > Options > Reading, and *uncheck* the checkbox “WordPress should compress articles (gzip) if browsers ask for them”. Maybe it can help you.

Nice plugin! Smart code!

My problem is about flooders, not spammers. I am trying to avoid the creation of thousand of fake new user accounts, and thousand of “here is your new password” being sent to my real visitors.

Is it possible to adapt the plugin (or the wp-login and wp-register code) to request the code when registering a new user and for requesting a new password?

By the way, does the plugin requires cookies to work??

hi, Andrew. Thanks for your suggestion, and I will try to do it. The plugin uses session, and session requires cookies by default.

Nio, hi, thanks for this plugin. It’s really easy to install.
Receiving over 10-20 spam comments each day, Spam Karma and BB isn’t enough coz it sometimes surpasses the plugins. I tried your Anti-Spam Image and it seemed to work for the first few days.
Today, I receive a spam comment that “surpasses the walls”. Why is this happening? Thanks.

hi, stchatterbox. Have you received more spam comments or only one?

Thanks, unfortunately, it’s more than one, Nio, and the spammer was the old spammer that’s always attacking my blog!

I have tried to post a comment in your blog. I didn’t input security code, but the comment was submited successfully, and it displayed “Sorry, but your comment has been flagged by the spam filter running on this blog: this might be an error, in which case all apologies. Your comment will be presented to the blog admin who will be able to restore it immediately. You may want to contact the blog admin via e-mail to notify him.“. This message was from SK2 plugin. Actually, the spam comment has been saved in your database. Maybe you can try deactivating the SK2 plugin.

Ok, Nio, I see it now. This “Sorry, but your comment has been flagged ……” message only happened when I started using your plugin, thus obviously it doesn’t work with Spam Karma, I think. Then do you need to mention this point to warn those who’re using spam karma?

By the way, was your comment something like xxx@sina.com and the comment was “test”?

Finally, I know this might not be too related to what you’re doing, but spam , besides distracting, is also taking too much of my bandwidths. Do you know any good methods? I know WP’s codex has a list of plugins to choose from, but I still need some advice, thanks a lot,and good luck with the upcoming versions!

You are right. The plugin conflicts with SK2, and I will warn the users.

Yes, that’s my test comment. For your last question, I have no idea .

Nio, seems spammers are quite clever and bad things return after 2 days.
Everything was fine after I deactivated Spam Karma,but today I received 2 comments awaiting moderation and guess what! They are the spam comments I often receive these past few months!
I failed to comment my blog without entering the number code, and I’m just wondering why they could surpass everything?
The spammer’s name is Diether.

I tried to post a comment in your blog again, and got a message “WordPress database error: [Unknown column ‘comment_count’ in ‘field list’] UPDATE wp_posts SET comment_count = 0 WHERE ID = 89“. It seems that the table ‘wp_posts’ doesn’t contain a field called ‘comment_count’. What version of WordPress are you using? 1.5 or 2.0? Maybe this is a bug.
But, in fact, the comment wasn’t submit successfully. I don’t know how can spammers surpass the plugin .

I’m using WP version 1.5.2.

Yes, this error message will appear if I didn’t fill in the numbers

Hi, stchatterbox. You can download and install AntiSpamImage 0.4 to fix this error.

By the way, did you install any other plugins?

hi nio do you think that this plugin can be integrated in the contact plugin?

you can view it here
http://www.nichemarketingacademy.com/contact-me/

i get a lot of spam lately

thanks

johannes

ps thanks for the plugin

Hi, johanners. Where can I download the contact plugin? I must read source code first .

hi nio

thanks for reply

here is the link:
http://ryanduff.net/archives/2005/12/20/wordpress-contact-form-14

johannes

johannes, I have sent a new WP-ContactForm plugin that I have modified to you.

Nice plugin!

Very simple and it works fine for me over WordPress 2. I’d added it to my web site to stop spam with some little design modifications.

Hi Nio,

interesting plugin, but it doesn’t show up. The plugin is activated, the test-image with http://your-wp-root/index.php?image=1 works well and the given code was added in comments.php. However, no new security field shows up. Do I have to add additional fields in the comment form?

Thanks for help, Steffen

hi, steffen. I have saw the security field in your comment page, but there is a JavaScript error. You should move the code ‘<?php do_action(‘comment_form’, $post->ID); ?>’ into the comment form, and the code should be after the ‘url’ input field.

Hi Nio,

now it shows up. Don’t ask, why it didn’t work the 1st time. The format is a bit ugly, but for anti spam it nice.

Ciao, Steffen

Yes, it’s ugly for anti spam

你好~我安装了你写的这个插件，感觉的确不错，不过有个小问题：那就是在Firefox中浏览的时候，验证码的整个div全都在提交按钮的下面，不注意的人很容易就忽略掉了，用什么方法能够解决这个问题呢~

谢谢~

特地来表示感谢的。。。真是好用阿！！

麦可，你好。我用 Firefox 浏览了你的 BLOG，看到验证码图片是正常的，没有在提交按钮下边，请问你的 Firefox 是否禁止了 JavaScript，或者你用的是较低版本的 Firefox？我的是 1.5.0.3，并且我一直都是在用 Firefox，之前 1.0.x 也是正常的，所以不是很清楚你的情况，希望提供更加详细的信息，亦或有屏幕抓图发到我的邮件中。

感谢Nio~
果然是我的firefox用了禁用javascript的插件造成的结果，麻烦了~ ^^

johannes, I have sent a new WP-ContactForm plugin that I have modified to you.

I need this also.

Would you publish it in your site

Wow! Nice and working! Thank you!

You say this plugin conflicts with SK2, Does it also conflict with Akismet? I would imagine Akismet and your captcha together would be a pretty good spam protection.

I also use the Trencaspammers captcha on one one of my other sites; it took me nearly all night to figure out, yours was easy as 1,2,3 to install, and looks better too. As for stopping spam, my site is relatively new and spambots have yet to discovered it. Hope it works out. xie xie ni!

Thanks Nio!

Now, I don’t have bad spam in my forms.

Great works!

hi, Mark. I didn’t test it with Akismet. If it works fine, tell me please. Thanks

simple and easy, thanks!

Great product, saved me from piles of spam!

It has been running for a month or two with no problems. I got an email from a visitor today complaining that no matter what was entered the same message always came up “Invalid security code. Press your browsers back button and try again.”. I tried it with the same result…

Strange thing is that people can comment on other posts fine. Is there something that could cause one post to always be blocked?

Here is the post that has the issue:
http://www.hackedgadgets.com/2006/03/10/led-cubes/

Thanks

hi, Alan.
Did you change something about WP or PHP?

This is great plugin but once installed, pingback will die function. any suggest?

hi, Patrick. I don’t understand what you mean.

Thank you very much for your plugin! IT’S SIMPLY GREAT!

Hi Neo,

No nothing changed (my provider could have changed something with PHP). Other posts work fine since I tried a few and I am still getting many comments per day on other posts. It just seems like there is something wrong with this one. Is there something in the database or a config file that could cause this?

Alan

Hi Alan,

The plugin just uses session, and doesn’t uses any database. I find that if I visit the page using “http://hackedgadgets.com/2006/03/10/led-cubes/”, the plugin works fine. But if I use “www.hackedgadgets.com”, it doesn’t work. When I use ‘www…’, the cookie domain in that comment page is ‘www.hackedgadgets.com’, but the “action” in comment form is “http://hackedgadgets.com/wp-comments-post.php”. This means that the plugin will use session domain “hackedgadgets.com”, it can’t get session data in domain “www.hackedgadgets.com”.

Go to “Site Admin” -> “Options”, setting “WordPress address”, let it be “www.hackedgadgets.com”. Maybe it will work. Good luck.

Nio

Has anyone tested it on Wordpress 2.03 yet? I am still using 2.01 and 2.02.

crap, no worky on 2.03

Wonder if it’s because my site is a sub.domain? I changed the settings in the wp options. still no worky, i would say it is the new wordpress version.

nevermind, i fixed it, had the same problem as Alan, It happened when i created a sub domain heh!

Congratulation!

Thank you for your plugin!

You are welcome.

Humm, wonder why it wont work in the IE7 beta browser using a sub.domain, but works in firefox and opera. I noticed this site is a sub.domain. Using IE7 beta it works fine here, but not at my site

I installed this plugin yesterday and have serious problems with xml feeds and with certain ‘bots not being able to see my site (these would be ‘bots I want to see my site). I need to know what files to look at to fix this problem.

I unchecked the Gzip box since I was getting that error as well, it did not fix the other problems.

Thanks for the great plugin.
感谢伟大插入式。

Great plugin!!! I was using Gatekeeper to stop this annoying blogspot spam going around, and they kept getting around the phrases.

Your plugin seems to be working with SK2, at least for the moment. I am on WP 2.whatever.

This is not working for me. I have wp2.0.3 - can that be the reason?

do capchas really work?

doesn’t seem to work for trackbacks, spamkarma or askimet.

brilliant, thanks man.

Apparantly no one yet spammed this blog so it must be half way decent. who needs trackbacks anyway?

As my previous comment, your plugin is the best anti-spam plugin ever. Not a single spam able to comment sicne I activate it. However, I’ve found some problem below:

1.Izit the plugin got “time frame” for user to key-in the numbers? coz, after sometime viewing the post, when comes to comment, it says auth code is invalid…

2.Pingback and trackback is TOTALLY BLOCKED. Can you upgrade it to be pingback and trackback enable? Test Pingback and Trackback here –> http://www.tamba2.org.uk/wordpress/TestTrack/index.php

Very good plugin! Congratulations to everybody!

I have installed in my blog, and translated the 4 terms that must be translated into Spanish.

Thanks!

This is not working for me. I have wp2.0.3

Hi, your work is excellent, but it’s seen block all pingback and trackback. any update?
Test your pingback here:
http://kalsey.com/tools/trackback/

Hi, the plugin totally block all trackback and pingback. If you want to enable it, just change
this line:
// If the user is not logged in check the security code
if ( !$user_ID ) {

to:
if (!$user_ID && ($comment_type === ”)) {

Hi, Patrick.
Thank you very much. I have updated it to version 0.5.

Hello.
I try A.S.I. v0.5 in my blog and have problems. Pingbacks and trackbacks sill not work, and a few spam-comments they could happen. For that reason I decided to return to version 0.4. If I can collaborate in some test I am arranged. it pardons my English badly.

Hi HighToro.
I have tested it with some friends, and it worked fine for pingbacks & trackbacks. But I found that it couldn’t anti trackback spams. So I backed to use v0.4 in my blog.

Right, the same problem like me. Tanks for your attention Nio. Hope you fix the problem soon! Tnx again!

Hi! Anti Spam Image is really simple and usefull plugin I installed it on my blog, and described it: http://blog.xradar.net/wordpress/znow-ta-captcha/ (polish). But I send a trackback to yours blog and it doesnt work:(

Greets from Poland:)

it works awesome!

Dear Nio,
my name is Carlo, from Italy. I own the website http:
//unarisatacidisseppellira.net, a word press blog. It was adapted for
me by a programmer, in Italy, but he did not a good job in my opinion.
Which is why I am writing to you. I noticed that he has activated your
anti spam plug-in. I have appreciated this plug-in and your job so I would be happy to hire you in order to complete the job he left unfinished. If
you are available, please let me know and I will send you my requests
in detail. Payments would be made through paypal (or any other mean of your choice).
Please let me know asap.
Regards
Carlo.

Using firefox 1.5.0.4 on macintosh, if I enter the turing code in error and then press the back button, the comment form is erased. (i.e. the user will have to retype their comment again)

Is there a fix possible for this and is it local only to FF and/or mac?

I’ve been using the plugin for a few months in a WordPress MU site, and it has worked fine until yesterday. All of the sudden, none of the images appear on any member blogs.

Hi, Jason.
Did you change anything (php, subdomain,and etc.) ? Did you enable GD extension of php?

Invalid CSS code on line 36:

‘left’ is not a ‘display’ value

Try to take it off or use ‘float: left’

Hello!

I installed Wordpress on my server, and set up a site. It’s a relly nice piece of software. However, I am missing a piece of functionality, and

couldn’t find a suitable answer for it. Mayou you know a plugin I could use?I need to automatically inserts ads in my posts.And not AdSense ads, but rather HTML snippets defined by me (affiliate links, etc). Let’s say I would insert a tag in my post:
– ad here –
and the plugin would automatically replace it with some HTML code, when the post is displayed on my site.I really don’t need any fancy configuration options etc, just the basic replace functionality.
Do you know a plugin that can handle this?

hi, lil wyte. I have to say sorry to you because I don’t know such a plugin.

ganz hilfreich

hy neo, and congratulations on a job well done. one question though: is this plugin supposed to stop all spam ? since all spam si mass sent and not individualy … i’m asking beacuse some of the spam i receive get past this plugin. although it stops a lot of it, there are still some spam-comments that get through. is something wrong at my end or is it just normal ? and if so, can we expect a new version posibly spam free ?

thanks.

hi, Cristian.
If you are using version 0.5, it can’t anti trackback spams.

So i should use another version ? 0.4 perhaps ? is there any major difference between the two ?

I’m using version 0.4, but trackback and pingback will not work in this version.

is it worth upgrading to the 0.5? I haven’t had any problems with the 0.4 yet. yet!

If the pingbacks don’t work, does that mean there is no chance your site will ever get in a search engine?

when a person enters the letters in the image wrongly after typing a long comment, they get annoyed to lose all the contents in the comment and its reduces the no of comments.. please provide a way to recover the text..

hi, Mark.
Just trackbacks not work.

I changed this code a little bit to improve the security.
===================================
//if ( $_SESSION[’IMAGE_CODE’] != $securitycode ) {
if ( $_SESSION[’IMAGE_CODE’] != md5($securitycode) ){
====================================
and

/*
$_SESSION[’IMAGE_CODE’] = str_replace(array(’0′, ‘o’), array(’1′, ‘p’), strtolower(substr(md5(rand()), 20, 4)));
$char = $_SESSION[’IMAGE_CODE’];
*/
$char = str_replace(array(’0′, ‘o’), array(’1′, ‘p’), strtolower(substr(md5(rand()), 20, 4)));
$_SESSION[’IMAGE_CODE’] = md5($char);
===================

how do you get this to work with a sub domain? it must be possible cause this site is a sub domain.

I did this, doesn’t work…

WordPress address (URI): http://webpage.com/sub

Blog address (URI):
http://sub.webpage.com

Excellent Plugin there.
Can you make the same for plogger images gallery, there are 40000+ Plogger users
Amit Patel

Hi, Wei. Thanks for your codes.

hi Amit Patel. That’s good idea.

Your code to check for pingback or trackback does not work as is? I had to change it to this to get it to allow them.


function comment_post($post_ID)
{
global $wpdb, $user_ID, $_POST, $_SESSION, $comment;

if ($comment->comment_type != "comment") {return $post_ID;}


But the bigger problem I have with virtually all Captcha plugins is they require cookies. I am trying to find a way around that since many people block cookies these days.

If you google for “Preserving State Without Cookies” you will find alot of information on that. Maybe you can figure out a solution faster than I can.

Ignore my previous suggestion for a fix, it’s alot easier than all that.

You have a improper comparison on line 59
change it to this:


if ( !$user_ID && ($comment_type === '')) {


otherwise it passes for trackbacks and pings which is wrong

I’m back to investigating cookie-free methods via

ini_set("session.use_cookies", "0"); ini_set("session.use_trans_sid", "true");


to try to pass the code through the form post instead of cookies or the url.

hi, _ck_
Trackbacks & pings have been fixed in v0.5 in last month. You can download and check it.
I think “session.use_trans_sid” is NOT security enough. Maybe we should detect whether clients allow cookies first.

For some reason your v0.5 still fails on my pingback testing and I get the “enter security code” for a pingback.

your line is

if ( !$user_ID && !$comment_type ) {


which I believe can fail.

I replaced it with:

if ( !$user_ID && ($comment_type === '')) {


which works everytime. Note the three “=”

session.use_trans_sid makes the data pass through the form post instead of using a cookie for the session. How is that less secure? Any robot would be able to access any one of those methods so they are all equal?

In any case I believe there has to be a way to simply append a hidden input field and pass the key to compare in the post data directly at the same time as you append the image? You should not have to use sessions or cookies at all. Take advantage of the form that is right there?

After alot of pondering I think I figured out how to do this without cookies using mysql and slide it right into your existing routine.

Basically when the image is called for, you send it the timestamp. So from there, store the timestamp the the md5 created code into a mysql table. You first check to make sure the code does not exist already - if it does there is a collision within 10-15 minutes which is extremely unlikely.

Upon submit, you 1. check to make sure the timestamp is within 10-15 minutes or so and purge/trim the database - 2. you check the database for a matching md5 code within the past 10-15 minutes (database is already trimmed so it’s just the whole database) 3. if there is no code matching, they either submitted the wrong code or it’s too far after the creation date, send them back.

Granted there is a problem if there are thousands of people requsting a captcha image at the exact same 10-15 minutes but for 99% of the blogs out there, this is far from an issue?

Defeating this method would be just as hard as using session variables.

Hi, _ck_, thanks for your comments.

I have a question. What’s the $comment_type value of pingback? I think it’s “pingback”, because it appears in some files of wp. If I’m wrong, tell me please.

For ’session.use_trans_sid’, it has been mentioned in PHP manual. “If you link to an external site, the URL including the session id might be stored in the external site’s referrer logs….”

I understand your solution, but it’s too complex. I don’t think it’s the best solution. The timestamp isn’t unique. If there are two clients get the same timestamp, but different image codes, it will fail. The database is a problem. WP has too many queries now, and it cause some sites run slowly.

I now have a working prototype of your code using mysql and it work very nicely. No more cookies needed and with a true table it can check/block people hammering on the images to try to crack it (or your system). I added IP matching to boost the uniqueness and it should work.

As far as slowness, some people report that turning on sessions actually slows things down. Since the security image is only for unregistered users it shouldn’t be too bad.

With some extra code you could actually give the option of sessions OR using mysql for no cookies. As far as I can tell, your code will be the FIRST for wordpress that does captcha without needing cookies

I’ll email you a copy or post a downloadable link here in a minute.

ps. The problem with the $comment_type was that NULL and “does not exist” are not always the same in PHP? At least I think that’s what it is. In the PHP manual “==” and “===” mean different things.

Congratulation! I’ll learn your codes.

Unregistered users are far more than registered users in my site. I think many blogs are the same as mine.

I know the difference with “==” and “===”, but I think pingback $comment_type value is “pingback”, and “!$comment_type” means the “comment” in WP.

Okay I just emailed you my mod.
Here it is for anyone else interested:
http://www.savefile.com/files.php?fid=7140283
(rename the .phps to .php)
————————-
Default expire time is set to 30 minutes but you can
decrease it if you’d like (search for 1800)

The needed mysql table is created on plugin activation.
Note that it will purge any existing table of it’s own on activation
so if you activate/deactivate alot it will cause visitors failed posts.

Be sure to deactivate the non-mysql version first,
you can’t run them both at the same time
———————-

testttt

what is it?

用了你的那个anti-spam image plugin
但是不知道那里才能点击广告？

Wrrrr….

I love the idea of this plug in but. Pictuire doesnt appear in my case. I checked my GD and I have GD 2.something. I van see the line in the comment block butr I cannot see the image. I read everything here, checked and still nothing.
When I put http://blog.wojtekgil.com/index.php?image=1 I get bunch of lines with errors.
Help!

…and I’m on WordPress 2.0.4

hi, Wojtek.
I seen that your index.php had sent “<link rel=”shortcut icon” href=”http://wojtekgil.com/favicon.ico” >” before the image. Did you write this code in somewhere?

I’m not sutre what you mean but I had to put the line ”
ID); ?>” muself. Are you suggesting I put it in a wrong place?

I messed up the previous post. I will check my index as much as I can, as my knowledge allows.
Thanks and I will be back, probably

Sorry, I forgot to escape html. The line is”<link rel=”shortcut icon” href=”http://wojtekgil.com/favicon.ico” >”.

OK!
Got it to work!
I had favicon line in my index. when I removed it everything works perfect! (at least now) THANK YOU!

Great plugin! I got it work effortlessly with my fresh weblog. With the joint force of Akismet, spams gotta leave me alone for a while

Thanks,
delvig

Thanks for plug! I like it!

Finally! I found a spam system that works! Thank you!

Hi Nio, If the version 4 of Anti Spam works well, would you still recommend I upgrade to the version 5? By the way, what is the difference between the 4, and 5?

Version 0.5 just fixed the bug that trackback and pingback couldn’t work. If you need trackback function, it’s recommended to upgrade to the version 0.5.

谢谢你！

Hopefully this stops all the spammers - > 500 spammy comments this month, sigh…

Lawrence / www.shanghaiguide.com

thx

just testing your system. i need something like this!

thanks

Thanks a lot for the captcha. This one is much better than the first captcha project for the Wordpress. I like it.

September 22, 2006
Anti Spam Image 被18ie.com 采用
Filed under: Uncategorized — mft @ 8:24 pm
Anti Spam Image 也是一个利用图形验证的反spam的插件。Anti Spam Image最新版是 0.5， 在wordpress 2.0 里可以用。安装非常简单，只有2步。1) 上传到plugins目录， 2)active。

下载地址是 http://nio.infor96.com/archives/369

结论：Anti Spam Image 被18ie.com 采用，感觉还不错。

多谢。

http://www.18ie.com/wordpress/?p=7#respond

我以前写过1个汉字OCR软件,叫mini ocr.也算是对ocr有所了解,感觉这个图像加密算法稍微简单了一点. 应该再复杂些,就更好了.马飞涛

WordPress:version: 2.0.4(无中文插件)
Theme:Keso 主题
Anti Spam Image：version: 0.5

只需激活插件即可。赞一个。

Hi, I have the following problem: when I activate the plugin and try to post a comment it says: ‘Comments are closed.’ I don’t know why.
Thank you for your asistance!

In Administration Pannel-> Options_> Discussion the ‘allow people to post comments’ is checked

OK，it is good!

如果加上一个验证就更好了！

见：http://www.revel.cn/blog/?p=104

Sorry i don’t understand your answer rena. Plese write in english.

hi, Tudor. It seems because of your theme. When you submit a comment, it posts data to the server in AJAX way. So maybe you should modify the AJAX server side codes. Or try another theme, such as “classic”, “default” and so on.

Thanks for your reply Neo. unfortunatelly I don’t know how to modify the AJAZ server side codes. I personalized this theme so I don’t think I will change it. Thanks again for your answer.

Hi to all … and thank you for this nice plug in…

I run a dj web site dedicated to minimal electronic music and I use wordpress to manage my content… I have installed your plugin from more than one mounth, but recently I have always some comments to delete because they are waiting moderation, ( for my luck ! ) and are not stopped by your plugin like before..

So maybe these are humans or spammers have understand how read the security code ?

Did you have any up-grade to solve this ??

Thank you for any replay.

Cheers

I like the Captcha more than any other for spam filtration.

thank you so much for this plug-in

Thank you very much for the plugin. It is most appreciated.

Thanks for great plugin.

Is there any reason that the session doesn’t pass value correctly? I have two news blog websites which I thought the configurations of PHP are the same. However one works fine one doesn’t. It always says the security code is wrong. I tested it and found it actually didn’t pass the session value at all so it can not compare the value i entered with the image code. What could be wrong? Could you help?

hi Ming, did you use subdomain? I think it’s because of session.cookie_domain.

Hi Nio,

I have just installed your anti spam image plugin and it works fine. Many thanks, I use the typo theme from Sunaryo Hadi and he told me that possibly you could also provide this plugin for a contact form. Do you have that for me?

Cheers, Berend Raap

Hi Berend Raap,

I have sent it to you.

Hi Nio,

like djming wrote I am also using your plugin for several months and it was quite since a few weeks. Suddenly I have to moderate comments on a daily basis.

Did someone manage to parse the image? Could an update help, which obfusicates the image even more?

Best regards from Germany,
Yaba

无法显示验证图片是什么原因?

hi jacky,
貌似在输出图片之前你的文件输出了一些东西，导致图片无法正常输出，你可以试试这个url：
http://www.jackyhere.com/index.php?image=1

Hy Nio.

I seem to be having some problems with your plugin … i recently wanted to try and install another plugin to my blog, post-ratings .. and when i activate it the line on the web page with the input of the code and the image is gone … the image shows up when trying the url with …/index.php?image=1 but on the comments page it completely dissapeared. this happens when i activate the post ratings plugin even if the line implementing the ratings function is commented out from index.php.

This is the plugin i’m talking about http://www.lesterchan.net/others/downloads.php?id=20

Can you help me at all with this one ?! thanks …

nevermind … fixed the problem

All of the sudden, none of the images appear on any member blogs.

As for stopping spam, my site is relatively new and spambots have yet to discovered it. Hope it works out.

刚装了你的插件，谢谢。
（是不是其他的插件就不需要装了，比如Bad Behavior？）

hi:
I installed your plugin, and it worked fine. but recently, the image code is disappear. I follow your tip and check the myblog/index.php?image=1, but show nothing. If it mean i can not use the plugin anymore ?

Cool plugin! Thanks Nio

新年好。求助，用了验证码之后安静了几个星期，今天突然又闯进来一个广告留言。从位置和内容看，不像是手工填写的。我不懂程序……有些垃圾留言程序能够绕过验证码，是吗？

老大，我照着你的方法安装了很多次了。但是没有一次成功的哈。激活后我查了comments.php文件。发现里面也有
ID); ?>浏览index.php?image=1137635324也有图片出来。唉。我用的版本是WP2.1
请问还有什么办法解决么？`

to zeyez: 这个图形生成算法比较简单，我觉得是可以编写程序分析这个图形的，或者是通过某种算法进行命中，只是不知道这个程序现在是否存在，呵呵。

to 饭特稀: 这个可能跟你使用了二级域名有关系，看看你的 php.ini 设置的 session.cookie_domain 是否正确。

上次留言后到现在确实无恙。也许那次真是中彩。:)

Your plugin is really nice, but I’ve a problem with the layout at the comment-form. I’m using the Blix-Theme and I would like to know if it is possible to make the Security-Image-Form match the layout of the comment-form

3x

Did someone manage to parse the image? Could an update help, which obfusicates the image even more?

一个简单有效的方法来防止OCR

改过的函数如下。
function comment_form()
{
global $wpdb, $user_ID, $_SERVER;

// If the user is logged in, dont prompt for code
if (isset($user_ID)) {
return $post_ID;
}
?>

var urlinput = document.getElementById(”url”);
var submitp = urlinput.parentNode;
var substitution2 = document.getElementById(”secureimgdiv”);
var imgsrc = “” + “?image=” + “&spam”;
substitution2.innerHTML = ‘Antispam’
+ ‘ Required‘;
submitp.appendChild(substitution2, urlinput);

恩..好像我上面的post被过滤掉很多话了。

改过的code在这里
http://chen.dukechina.org/blog/wp-content/plugins/anti_spam_image.phpx
主要是用javascrit 来加载img.
一般spammer不会parse javascript，所以就找不到这个img了。
我改了以后再也没有任何spam了。

Hello
You are The Best!!!
Bye

Sophiesworld.cn使用了您的插件，谢谢！

谢谢 Wei

after activating this plugin wprdpress started to generate blank line at first line of all generated documents - it is bad for xml files (rss feeds) because they are not valid anymore and feedreader couldnt read them

Nice blog and I liked the comments tooo… Little bit spam but its ok. Keep up your good work.

wefwf

I dont know but why i don find such informative and profitable blogs so often,I suspect blogging world is becoming so small that we cant find such lucrative blogs like this one.

Interesting Plugin !

This is the plugin i’m looking for ! Thanks alot !!!

Thanks! Good Work!

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Is this plugin actually readable though? I’ve seen a lot of CAPTCHA codes lately that are VERY annoying for the user.

why don’t it work via a sub.domain?

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Just testing the plugin. Looks good!

I am Very thank full the owner of this blog. Becouse of this blog is very imformative for me.. And I ask u some thiing You make more this type blog where we can get more knowledge.

enlargement :))

Thank you for the plugin.

Natural herbal health care medicines, Articles, informations and daily updated health concerns issues and their solutions for better health and better life. www.naturalherbalz.com

Thank you very much for your plugin !

Someone needs to find a way to stop spammers.

Good stuff. Thanks and greetings!

Nice! It helped us! Thanx!

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