I am attempting to build a system that only shows users a CAPTCHA when bot-like behavior is detected. Here are the behaviors that I am currently looking for when somebody is filling out a contact form... how quickly the form is submitted after the page loads (if its 5 seconds or less, its almost humanely impossible to fill out) how man...
I am looking for a .NET/ JAVA free or opensource SPAM detectors accesible via an API that yield good results. I would consider paying for a good service that accomplishes this as well, but ideally, I would like to go open source. Does any one have any good experiences with any or recommendations? Ideally, I would get the text/markup to ...
Hi! I know you guys will be able to tell me what I can't. That's why I'm here. Basically i need to have antispam bot mechanism for any site I created. The problem is sometimes they are too complex or that I don't have time to put it on the website considering that some sites are already done and that some require stiff deadlines. I ha...
Hello, I'm currently writing an iPhone application which gets some data from the user and uploads it to a server. The uploaded data will be displayed to other users of the same program (there's more to it than that, but to keep the idea simple...). The data which is uploaded is basically just three strings: a name(max. 50 char.), a titl...
I've been working on a web app that could be prone to user abuse, especially spam comments/accounts. I know that RECAPTCHA will take care of bots as far as fake users are concerned, but it won't do anything for those users who create an account and somehow put their spam comments on autopilot (like I've seen on twitter countless times). ...
I'm curious if anyone out there knows of something perhaps like Akismet, but where content doesn't have to go off to a 3rd party server. In a situation with critically sensitive data (patient records for instance) I wouldn't necessarily want that information sent off to another server I don't have control over. I really like Akismet, it ...
I noticed that for voting SO implements an XHR method which POSTs to a posts controller and sends the post ID and vote type through the URL, in addition a fkey parameter is sent, eg: http://stackoverflow.com/posts/1/vote/2 I'm going to be implementing a similar technique, I'm wondering what logic I could use to prevent duplicate votin...
Recently with the Google webmaster tools, i discovered the following (not found) Crawl errors http://mydomain.com/warning_this_is_english_domain_to_solve_this_problem_submit_site_in_atoall.com.html After Googling i found that this one might be a new way of spam. But wait a second, from programmer's prespecive, what is going on with m...
I'm creating a forum for a website, and plan on implementing a "Report this content" function. In all honesty, I'm not sure how useful (lit. necessary) the feature will be, since a user account (created by admin) will be required for posting, but the solution interests me. So in short, this is the scenario: For all users, there will b...
I'm currently developing a website, into which I've included a filter that attempts to obfuscate any e-mail addresses present in the webpages it serves. As it is now, it converts the addresses into images. I've also seen a few other methods in use; some split the address into characters and use generated javascript to include it in the...
Hi I want to add a simple Contact form to my web site so that customers can contact me easily. <form> NAME <input type='text' name='name' /> EMAIL <input type='text' name='email' /> MESSAGE <textarea name='message' /> <input type='submit' /> </form> This form would simply email me the customers message. B...
Cross-site scripting (XSS) is a type of computer security vulnerability typically found in web applications which enable malicious attackers to inject client-side script into web pages viewed by other users. An exploited cross-site scripting vulnerability can be used by attackers to bypass access controls such as the ...
There seems to be a bot attempting to spam through my contact form - attempting to send hundreds of emails with PURE gibberish: 1vvQZe mnfxobzahiga, [url=http://dxicyigwtdyn.com/]dxicyigwtdyn[/url], [link=http://hhulyjnulbvz.com/]hhulyjnulbvz[/link], http://nfggzmenyqcl.com/ I'm really trying to keep from using captchas on my site...
actually i am trying to write one rule in local.cf spamassassin what i need is to block all Viagra emails. as you know in these emails some time thay write Viagra,VIAGRA,VIAGRA(c) and some time it is in Subject, some time Name, some time Body of message can you please tell me what will be rule exactly to stop all these emails. Thank...
Currently we are running a competition which proceeds very well. Unfortunately we have all those cheaters back in business who are running scripts which automatically vote for their entries. We already saw some cheaters by looking at the database entries by hand - 5 Star ratings with same browser exactly all 70 minutes for example. Now ...
Hi, I want to protect my website against spambots with javascript. I found this code, I have two questions. 1 - Will this code protect my email adres? 2 - Can someone explain me how to add this line: <SCRIPT TYPE="text/javascript"> emailE=('info@' + 'friesecomputerservice.nl') document.write('<A href="mailto:' + emailE + '">' + email...
I have a form that sends info into a database table. I have it checked with a Javascript but what is the best way to stop spammers entering http and such into the database with PHP when Javascript is turned off? ...
I'm creating a website where users can write articles and comment on the articles. I want to automatically check to see if a new article or comment is spam. What are good libraries for doing this? I looked at bayesian classifier libraries, but it seems that I would have to gather a large amount of samples and classify them all as spa...
What's the best, easiest, free way to check in Java if a piece of text is spam? ...
How to distinguish robots from normal user? How does SO do this job? Currently I'm met with a robot which post once every 1 hour... ...