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Joomla Continuous Build Configuring TeamCity, Maven for PHP for Joomla continuous buildContact section of Joomla! 1.5 using SecurityImages 5.0
- Details
- Category: SecurityImages
- Published on Thursday, 20 March 2008 00:00
- Written by Administrator
- Hits: 18226
SecurityImages BETA will be available in no more than 2 days...
Note that SecurityImages is still WAY to intrusive toward Joomla! as core file has to be changed in order to use Captcha.
Lets take the contact section of Joomla! as an example.
- Download the patch HERE (soon available as a ready to use patch) and overwrite file on your server OR
- Do it on your own, this is more for 3rd party developer, or people wanting to understand the internal of Joomla! or SecurityImages
It is always recommended to use a switch in all your component to activate deactivate SecurityImages per components through the administrator control panel.
This is done by adding to administrator/components/com_contact/contact_items.xml the following code:
<param name="useSecurityImages" type="radio" default="1" label="Use SecurityImage Captcha" description="Enable Captcha verification">
<option value="0">No</option>
<option value="1">Yes</option>
</param>
Joomla will read this xml file on the fly and build the graphical user interface for the contact settings.
Since Joomla! 1.5 now use a Model View Controller paradigm, we have to alter the controller, and add a new Task displaySecurityImagesCaptcha()in components/com_contact/controller.php:
function displaySecurityImagesCaptcha() {
global $mainframe;
//Per contact you can define if the user has to resolve the capctha
$contactId = JRequest::getVar('contact_id', 0, '', 'int');
// load the contact details
$model = &$this->getModel('contact');
$qOptions['id'] = $contactId;
$contact = $model->getContact( $qOptions );
$params = new JParameter( $contact->params );
if ($params->get('useSecurityImages')) {
$check = null;
$mainframe->triggerEvent('onSecurityImagesDisplay', array($check));
if (!$check) {
echo "<br/>Erreur affichage du Captcha<br/>";
}
}
}
global $mainframe;
//Per contact you can define if the user has to resolve the capctha
$contactId = JRequest::getVar('contact_id', 0, '', 'int');
// load the contact details
$model = &$this->getModel('contact');
$qOptions['id'] = $contactId;
$contact = $model->getContact( $qOptions );
$params = new JParameter( $contact->params );
if ($params->get('useSecurityImages')) {
$check = null;
$mainframe->triggerEvent('onSecurityImagesDisplay', array($check));
if (!$check) {
echo "<br/>Erreur affichage du Captcha<br/>";
}
}
}
The next step is to add the task checkSecurityImagesCaptcha() checking the captcha in the components/com_contact/controller.php
function checkSecurityImagesCaptcha() {
global $mainframe;
$contactId = JRequest::getVar('id', 0, '', 'int');
// load the contact details
$model = &$this->getModel('contact');
$qOptions['id'] = $contactId;
$contact = $model->getContact( $qOptions );
$params = new JParameter( $contact->params );
//check if that user has a capctha
if (!$params->get('useSecurityImages')) {
return true;
}
$return = false;
$securityImagesJoomlaContactUserTry = JRequest::getVar('securityImagesJoomlaContactUserTry', false, '', 'CMD');
$mainframe->triggerEvent('onSecurityImagesCheck', array($securityImagesJoomlaContactUserTry &$return));
return $return;
}
global $mainframe;
$contactId = JRequest::getVar('id', 0, '', 'int');
// load the contact details
$model = &$this->getModel('contact');
$qOptions['id'] = $contactId;
$contact = $model->getContact( $qOptions );
$params = new JParameter( $contact->params );
//check if that user has a capctha
if (!$params->get('useSecurityImages')) {
return true;
}
$return = false;
$securityImagesJoomlaContactUserTry = JRequest::getVar('securityImagesJoomlaContactUserTry', false, '', 'CMD');
$mainframe->triggerEvent('onSecurityImagesCheck', array($securityImagesJoomlaContactUserTry &$return));
return $return;
}
global $mainframe;
if (!$this->checkSecurityImagesCaptcha()) {
JError::raiseWarning("999","Invalid Captcha Code");
$this->display();
return false;
}
if (!$this->checkSecurityImagesCaptcha()) {
JError::raiseWarning("999","Invalid Captcha Code");
$this->display();
return false;
}
to display the Captcha field
<?php if ($this->params->get('useSecurityImages')) { ?>
<img src="/index.php?option=com_contact&task=displaySecurityImagesCaptcha&contact_id=<?php echo $this->contact->id; ?>">
<br />
<input type="text" name="securityImagesJoomlaContactUserTry" />
<br />
<?php } ?>
<img src="/index.php?option=com_contact&task=displaySecurityImagesCaptcha&contact_id=<?php echo $this->contact->id; ?>">
<br />
<input type="text" name="securityImagesJoomlaContactUserTry" />
<br />
<?php } ?>
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