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Class: CSS Protector


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CSS Protector
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  • Screenshots:

    • Mozilla
    File Role Description
    Accessible without login Image file screenshot.jpg Screen
    Mozilla
    Accessible without login Image file screenshot2.jpg Screen
    MS Internet Explorer
    Accessible without login Image file screenshot3.jpg Screen
    IE in quirks mode shows garbage

  • Supplied by:

    • Picture of Peter Klauer
    Name: Peter Klauer <e-mail contact>
    Published packages: 18
    Country: Germany Germany - PHP professionals from Germany looking for PHP jobs
    Home page: http://www.ingoknito.de/

    Browse this author's classes

  • Innovation Award:

    • PHP Programming Innovation award nominee
    May 2005
    Number 5
    		 One of the reasons why people get so much spam is because they left their e-mail addresses exposed in public Web site pages.

    Over time many solutions have been implemented to make it difficult for robots that crawl pages in the search for e-mail addresses of spam victims.

    Most solutions consist in ways that make it easy for human users to read the e-mail addresses, but very hard for robots to extract that information from pages.

    This class implements an uncommonly astute solution that uses combinations of presentation styles with CSS to present the e-mail address in pages that is hard for most e-mail harvesting robots to extract the addresses.

    Manuel Lemos

  • Groups:

    • Group folder image
    HTML generation and processing
    		 View top rated classes
    Group folder image
    Security protection and attack detection
    		 View top rated classes

  • Detailed description:

    • This class can generate HTML tags to display text using CSS in such way that it prevents harvesting bots to determine what is written.

    CSSProtector is based on an idea from Stu Nicholls about using CSS Font as a protection method against spam bots.

    CSSProtector renames all the CSS classes used to protect the string everytime it is called, so the same string looks the same to the user but different to the bot everytime.

    For Internet Explorer and Opera, CSSProtector only works on pages that use the STRICT DTD. For Mozilla it works well with STRICT and LOOSE DTD. Older browsers that do not support CSS will show nothing or a whole mess.

  • Trackback links:

    • Link Description
    Another way of Captcha
    It’s another way of captcha. Coba-in dulu, trus lihat source htmlnya, nice kan? Intinya, setiap dot yang membentuk angka2 tsb direpresentasikan oleh tag <div>! Selain phrase angka yang berbeda2, div id yang digenerate juga diproses secara random...
    AuthCSS - the way to captcha
    The first time i read the article about Captcha at inoeng - Another way to Captcha...
    Latest blog trackback links Latest blog trackback links

  • Applications that use this class:

    • No application links were specified for this class.
    Add link image If you know an application of this package, send a message to the author to add a link here.

  • Related links:

    • Link Description
    Test bench
    Switching to Quirks- and Strict mode, enter different strings
    example.php
    The included file "example.php" at work
    Stu Nicholls | The CSS Playground | A CSS font
    This is from where the idea for CSSProtector comes

  • Files:

    • File Role Description
    Plain text file class_cssprotector.php Class
    Protect strings using CSS classes and divs
    Accessible without login Plain text file example.php Example
    This is an example of how to use the class
    Accessible without login Plain text file manual.txt Doc.
    About CSSProtector, how to use it, function list
    Download all files: cssprotector.tar.gz cssprotector.zip
    NOTICE: if you are using a download manager program like 'GetRight', please Login before trying to download this archive.

 
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