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<?php |
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namespace SilverStripe\SpamProtection\Extension; |
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use SilverStripe\Core\Config\Config; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\Core\Extension; |
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use SilverStripe\Core\Injector\Injector; |
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/** |
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* An extension to the {@link Form} class which provides the method |
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* {@link enableSpamProtection()} helper. |
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* |
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* @package spamprotection |
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*/ |
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class FormSpamProtectionExtension extends Extension |
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{ |
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use Configurable; |
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/** |
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* @config |
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* |
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* The default spam protector class name to use. Class should implement the |
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* {@link SpamProtector} interface. |
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* |
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* @var string $spam_protector |
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*/ |
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private static $default_spam_protector; |
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/** |
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* @config |
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* |
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* The {@link enableSpamProtection} method will define which of the form |
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* values correlates to this form mapped fields list. Totally custom forms |
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* and subclassed SpamProtector instances are define their own mapping |
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* |
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* @var array $mappable_fields |
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*/ |
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private static $mappable_fields = array( |
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'id', |
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'title', |
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'body', |
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'contextUrl', |
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'contextTitle', |
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'authorName', |
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'authorMail', |
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'authorUrl', |
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'authorIp', |
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'authorId' |
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); |
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/** |
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* @config |
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* |
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* The field name to use for the {@link SpamProtector} {@link FormField} |
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* |
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* @var string $spam_protector |
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*/ |
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private static $field_name = "Captcha"; |
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/** |
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* Instantiate a SpamProtector instance |
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* |
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* @param array $options Configuration options |
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* @return SpamProtector|null |
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*/ |
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public static function get_protector($options = null) |
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{ |
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// generate the spam protector |
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if (isset($options['protector'])) { |
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$protector = $options['protector']; |
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} else { |
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$protector = Config::inst()->get(self::class, 'default_spam_protector'); |
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} |
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if ($protector && class_exists($protector)) { |
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return Injector::inst()->create($protector); |
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} else { |
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return null; |
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} |
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} |
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/** |
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* Activates the spam protection module. |
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* |
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* @param array $options |
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* @return Object |
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*/ |
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public function enableSpamProtection($options = array()) |
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{ |
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// captcha form field name (must be unique) |
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if (isset($options['name'])) { |
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$name = $options['name']; |
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} else { |
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$name = Config::inst()->get(self::class, 'field_name'); |
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} |
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// captcha field title |
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if (isset($options['title'])) { |
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$title = $options['title']; |
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} else { |
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$title = ''; |
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} |
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// set custom mapping on this form |
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$protector = self::get_protector($options); |
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if (isset($options['mapping'])) { |
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$protector->setFieldMapping($options['mapping']); |
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} |
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if ($protector) { |
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// add the form field |
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if ($field = $protector->getFormField($name, $title)) { |
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$field->setForm($this->owner); |
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// Add before field specified by insertBefore |
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$inserted = false; |
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if (!empty($options['insertBefore'])) { |
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$inserted = $this->owner->Fields()->insertBefore($field, $options['insertBefore']); |
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} |
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if (!$inserted) { |
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// Add field to end if not added already |
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$this->owner->Fields()->push($field); |
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} |
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} |
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} |
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return $this->owner; |
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} |
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} |
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silverstripe /
silverstripe-spamprotection
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This check marks private properties in classes that are never used. Those properties can be removed.