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<?php |
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namespace ReCaptcha2\Form\View\Helper\Captcha; |
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use Traversable; |
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use Zend\Captcha\AdapterInterface; |
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use Zend\Form\Element\Captcha; |
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use Zend\Form\ElementInterface; |
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use Zend\Form\Exception; |
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use Zend\Form\View\Helper\FormInput; |
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class ReCaptcha2 extends FormInput |
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{ |
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/** |
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* @param ElementInterface $element |
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* @return string |
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*/ |
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public function __invoke(ElementInterface $element = null) |
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{ |
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if (!$element) { |
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return $this; |
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} |
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return $this->render($element); |
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} |
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/** |
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* @param ElementInterface $element |
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* @throws Exception\DomainException |
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* @return string |
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*/ |
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public function render(ElementInterface $element) |
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{ |
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if (!$element instanceof Captcha) { |
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throw new Exception\InvalidArgumentException(sprintf( |
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'%s expects a valid implementation of Zend\Form\Element\Captcha; received "%s"', |
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__METHOD__, |
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(is_object($element) ? get_class($element) : gettype($element)) |
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)); |
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} |
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$captcha = $element->getCaptcha(); |
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if ($captcha === null || !$captcha instanceof AdapterInterface) { |
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throw new Exception\DomainException(sprintf( |
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'%s requires that the element has a "captcha" attribute implementing %s; none found', |
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__METHOD__, |
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AdapterInterface::class |
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)); |
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} |
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/* @var $service \ReCaptcha2\Captcha\ServiceInterface */ |
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$service = $captcha->getService(); |
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$siteKey = $service->getSiteKey(); |
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if ($siteKey === null) { |
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throw new Exception\DomainException('Missing site key'); |
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} |
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$params = array_filter($service->getParams(), function ($param) { |
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return $param !== null; |
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}); |
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$apiPath = $service->getServiceUri(); |
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$scriptPath = sprintf('%s.js', $apiPath); |
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$queryString = ''; |
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if (!empty($params)) { |
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$queryString = http_build_query($params, '', '&'); |
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$scriptPath .= '?' . $queryString; |
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} |
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$attributes = $element->getAttributes(); |
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if ($attributes instanceof Traversable) { |
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$attributes = iterator_to_array($attributes); |
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} |
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$attributes['class'] = 'g-recaptcha'; |
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$attributes['data-sitekey'] = $siteKey; |
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$attributeString = $this->createAttributesString($attributes); |
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$template = <<<HTML |
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<input type="hidden" name="%s" value="1"> |
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<div %s></div> |
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<script src="%s" async defer></script> |
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HTML; |
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$markup = sprintf($template, $element->getName(), $attributeString, $scriptPath); |
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$queryString .= ($queryString ? '&' : ''); |
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$markup .= <<<HTML |
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<noscript> |
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<div style="width: 302px; height: 422px;"> |
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<div style="width: 302px; height: 422px; position: relative;"> |
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<div style="width: 302px; height: 422px; position: absolute;"> |
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<iframe src="{$apiPath}/fallback?{$queryString}k={$siteKey}" |
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frameborder="0" scrolling="no" |
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style="width: 302px; height:422px; border-style: none;"> |
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</iframe> |
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</div> |
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<div style="width: 300px; height: 60px; border-style: none; |
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bottom: 12px; left: 25px; margin: 0px; padding: 0px; right: 25px; |
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background: #f9f9f9; border: 1px solid #c1c1c1; border-radius: 3px;"> |
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<textarea id="g-recaptcha-response" name="g-recaptcha-response" |
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class="g-recaptcha-response" |
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style="width: 250px; height: 40px; border: 1px solid #c1c1c1; |
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margin: 10px 25px; padding: 0px; resize: none;" > |
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</textarea> |
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</div> |
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</div> |
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</div> |
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</noscript> |
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HTML; |
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return $markup; |
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} |
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} |
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