There are many extenions for captcha, but all I know are bloated. I just want a simple one.
Please have a look at
http://joomlacode.org/gf/project/tincaptchaI found no way to install language with my plugin, so I put it in the component. The plugin file is 120KB, but the most is font files (all fonts are grabbed from dafont.com, and they are copyrighted by their authors).
Here is the Contact page I have intergrated:
And I did:
1. Install both com_tincaptcha and plg_tincaptcha (remember active plugin, we can change some settings in the plugin)
2. In File
components\com_contact\controller.php, find and add like this:
Code:
function submit()
{
global $mainframe;
// Check for request forgeries
JRequest::checkToken() or jexit( 'Invalid Token' );
// tincaptcha-
$captchk = plgSystemTincaptcha::check(JRequest::getVar('captcha', '', 'post'));
if ($captchk !== true)
{
JError::raiseWarning(0, $captchk);
return false;
}
// -tincaptcha
3. In File
components\com_contact\views\contact\tmpl\default_form.php, find and add:
Code:
<label id="contact_textmsg" for="contact_text">
<?php echo JText::_( 'Enter your message' );?>:
</label>
<br />
<textarea cols="50" rows="10" name="text" id="contact_text" class="inputbox required"></textarea>
<!-- tincaptcha- -->
<br />
<label for="captcha">
<?php echo JText::_( 'TIN_CAPTCHA' );?>:
</label>
<br />
<input type="text" name="captcha" id="captcha" size="10" class="inputbox required" value="" />
<br />
<img src="index.php?option=com_tincaptcha&task=captcha_display" />
<!-- -tincaptcha -->
That's all.
I do not put
$this->display(); after
JError::raiseWarning because it just display an empty form.
You might want raiseError instead, it will display only error message
Code:
JError::raiseError(500, $captchk);
What my concern is in J1.5.3, when we typed wrong captcha and go back, all form data are cleared. They can be remembered in J1.5.1 because the code in
libraries\joomla\environment\response.phpCode:
//JResponse::setHeader( 'Cache-Control', 'no-store, no-cache, must-revalidate, post-check=0, pre-check=0', false ); // <-- browsers can not remember form
JResponse::setHeader( 'Cache-Control', 'post-check=0, pre-check=0', false ); // <--browsers can with this
I also hack Virtuemart registration form:
http://forum.virtuemart.net/index.php?topic=40043.0For Joomla registration will be available soon. I still want the captcha warning and the form display together with what we've typed in form.
?
Yep, this is not for a newbie but also not a brain teaser.
