ilCaptchaUtil Class Reference

Captcha util. More...

Collaboration diagram for ilCaptchaUtil:

Static Public Member Functions
static	checkFreetype ()
	Check whether captcha support is active. More...
static	__callStatic ($name, array $arguments=array())

Data Fields
const	CONTEXT_FORUM = 'frm'
const	CONTEXT_LOGIN = 'auth'
const	CONTEXT_REGISTRATION = 'reg'
const	CONTEXT_WIKI = 'wiki'

Static Protected Attributes
static	$context_map

Static Private Member Functions
static	getSupportedContexts ()

Detailed Description

Captcha util.

Author

Alex Killing alex..nosp@m.kill.nosp@m.ing@g.nosp@m.mx.d.nosp@m.e

Michael Jansen mjans.nosp@m.en@d.nosp@m.ataba.nosp@m.y.de

Version

$Id$

Definition at line 11 of file class.ilCaptchaUtil.php.

Member Function Documentation

__callStatic()

static ilCaptchaUtil::__callStatic (   $name, array  $arguments = array()  )

static

Parameters

string	$name
array	$arguments

Returns

bool

Exceptions

BadMethodCallException

Definition at line 44 of file class.ilCaptchaUtil.php.

        {
                if(
                        strpos($name, 'isActiveFor') === 0 ||
                        strpos($name, 'setActiveFor') === 0
                )
                {
                        $settings           = new ilSetting('cptch');
                        $supported_contexts = self::getSupportedContexts();
                        $method_parts       = explode('_', strtolower(preg_replace('/([a-z])([A-Z])/', '$1_$2', $name)));
                        $requested_context  = strtolower($method_parts[count($method_parts) - 1]);
                        if(!isset($requested_context, self::$context_map))
                        {
                                throw new BadMethodCallException('Method ' . $name . ' called for a non existing context.');
                        }
 
                        if('set' == $method_parts[0])
                        {
                                $settings->set('activate_captcha_anonym_' . $supported_contexts[$requested_context], (int)$arguments[0]);
                                return;
                        }
                        else
                        {
                                return self::checkFreetype() && (bool)$settings->get('activate_captcha_anonym_' . $supported_contexts[$requested_context], false);
                        }
                }
                else
                {
                        throw new BadMethodCallException('Call to an undefined static method ' . $name . ' in class ' . __CLASS__ . '.');
                }
        }

References checkFreetype(), and getSupportedContexts().

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checkFreetype()

static ilCaptchaUtil::checkFreetype ( )

static

Check whether captcha support is active.

Returns

bool

Definition at line 27 of file class.ilCaptchaUtil.php.

        {
                if(function_exists('imageftbbox'))
                {
                        ilLoggerFactory::getLogger('auth')->debug('Function imageftbox is available.');
                        return true;
                }
                ilLoggerFactory::getLogger('auth')->debug('Function imageftbox is not available.');
                return false;
        }

References ilLoggerFactory\getLogger().

Referenced by __callStatic(), ilObjForumAdministrationGUI\getSettingsForm(), ilObjAuthSettingsGUI\initAuthModeDetermination(), ilObjWikiSettingsGUI\initForm(), and ilRegistrationSettingsGUI\initForm().

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getSupportedContexts()

static ilCaptchaUtil::getSupportedContexts ( )

staticprivate

Returns

array

Definition at line 93 of file class.ilCaptchaUtil.php.

        {
                if(null !== self::$context_map)
                {
                        return self::$context_map;
                }
 
                self::$context_map = array();
 
                $r         = new ReflectionClass(new self());
                $constants = $r->getConstants();
                foreach($constants as $name => $value)
                {
                        if(strpos($name, 'CONTEXT_') === 0)
                        {
                                self::$context_map[strtolower(substr($name, strlen('CONTEXT_')))] = $value;
                        }
                }
 
                return self::$context_map;
        }

References $context_map, and $r.

Referenced by __callStatic().

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Field Documentation

$context_map

ilCaptchaUtil::$context_map

staticprotected

Definition at line 21 of file class.ilCaptchaUtil.php.

Referenced by getSupportedContexts().

CONTEXT_FORUM

const ilCaptchaUtil::CONTEXT_FORUM = 'frm'

Definition at line 13 of file class.ilCaptchaUtil.php.

CONTEXT_LOGIN

const ilCaptchaUtil::CONTEXT_LOGIN = 'auth'

Definition at line 14 of file class.ilCaptchaUtil.php.

CONTEXT_REGISTRATION

const ilCaptchaUtil::CONTEXT_REGISTRATION = 'reg'

Definition at line 15 of file class.ilCaptchaUtil.php.

CONTEXT_WIKI

const ilCaptchaUtil::CONTEXT_WIKI = 'wiki'

Definition at line 16 of file class.ilCaptchaUtil.php.

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The documentation for this class was generated from the following file:

• Services/Captcha/classes/class.ilCaptchaUtil.php