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Added invalidate method #25

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Added invalidate method #25

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45a1c14
Added static invalidate method
juanparati Jun 22, 2013
1375b9f
Added random id in captcha URL in order to force cache refresh
juanparati Jul 23, 2013
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12 changes: 11 additions & 1 deletion classes/captcha.php
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Original file line number Diff line number Diff line change
Expand Up @@ -246,6 +246,16 @@ public function invalid_count($new_count = NULL)
{
return $this->valid_count($new_count, TRUE);
}

/**
* Invalidate a captcha session, so prevent that same captcha_reponse can be used again
*
* @return void
*/
public static function invalidate()
{
Session::instance()->delete('captcha_response');
}

/**
* Resets the Captcha response counters and removes the count sessions.
Expand Down Expand Up @@ -431,7 +441,7 @@ public function image_render($html)
{
// Output html element
if ($html === TRUE)
return '<img src="'.url::site('captcha/'.Captcha::$config['group']).'" width="'.Captcha::$config['width'].'" height="'.Captcha::$config['height'].'" alt="Captcha" class="captcha" />';
return '<img src="'.url::site('captcha/'.Captcha::$config['group']).'?id='.uniqid().'" width="'.Captcha::$config['width'].'" height="'.Captcha::$config['height'].'" alt="Captcha" class="captcha" />';

// Send the correct HTTP header
Request::instance()->headers['Content-Type'] = 'image/'.$this->image_type;
Expand Down