This bundle provides easy reCAPTCHA form field for Symfony.
To install EWZRecaptchaBundle with Composer just type in your terminal:
php composer.phar require excelwebzone/recaptcha-bundle
Now, Composer will automatically download all required files, and install them
for you. All that is left to do is to update your AppKernel.php
file, and
register the new bundle:
<?php
// in AppKernel::registerBundles()
$bundles = array(
// ...
new EWZ\Bundle\RecaptchaBundle\EWZRecaptchaBundle(),
// ...
);
Add the following to your config file:
NOTE: If you're using symfony 4, the config will be in config/packages/ewz_recaptcha.yaml
. The local dev enviroment has its own config in config/packages/dev/ewz_recaptcha.yaml
.
# app/config/config.yml
ewz_recaptcha:
public_key: here_is_your_public_key
private_key: here_is_your_private_key
# Not needed as "%kernel.default_locale%" is the default value for the locale key
locale_key: %kernel.default_locale%
NOTE: This Bundle lets the client browser choose the secure https or unsecure http API.
If you want to use the language default for the reCAPTCHA the same as the request locale you must activate the resolver (deactivated by default):
# app/config/config.yml
ewz_recaptcha:
// ...
locale_from_request: true
You can easily disable reCAPTCHA (for example in a local or test environment):
# app/config/config.yml
ewz_recaptcha:
// ...
enabled: false
Or even load reCAPTCHA using Ajax:
# app/config/config.yml
ewz_recaptcha:
// ...
ajax: true
www.google.com
is blocked in Mainland China, you can override the default server like this:
# app/config/config.yml
ewz_recaptcha:
// ...
api_host: recaptcha.net
You can add HTTP Proxy configuration:
# app/config/config.yml
ewz_recaptcha:
// ...
http_proxy:
host: proxy.mycompany.com
port: 3128
auth: proxy_username:proxy_password
In case you have turned off the domain name checking on reCAPTCHA's end, you'll need to check the origin of the response by enabling the verify_host
option:
# app/config/config.yml
ewz_recaptcha:
// ...
verify_host: true
NOTE: If you're using symfony 5 and want to configure the bundle with PHP files instead of YAML, the configuration is like this:
// config/packages/ewz_recaptcha.php
<?php declare(strict_types=1);
use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
return static function (ContainerConfigurator $configurator): void
{
$configurator->extension('ewz_recaptcha', [
'public_key' => 'here_is_your_public_key',
'private_key' => 'here_is_your_private_key',
'locale_key' => '%kernel.default_locale%'
]);
};
Congratulations! You're ready!
When creating a new form class add the following line to create the field:
<?php
use EWZ\Bundle\RecaptchaBundle\Form\Type\EWZRecaptchaType;
public function buildForm(FormBuilder $builder, array $options)
{
// ...
$builder->add('recaptcha', EWZRecaptchaType::class);
// ...
}
Note that in Symfony versions lower than 2.8 refers to form types by name instead of class name, use:
<?php public function buildForm(FormBuilder $builder, array $options) { // ... $builder->add('recaptcha', 'ewz_recaptcha'); // ... }
You can pass extra options to reCAPTCHA with the "attr > options" option:
<?php
use EWZ\Bundle\RecaptchaBundle\Form\Type\EWZRecaptchaType;
public function buildForm(FormBuilder $builder, array $options)
{
// ...
$builder->add('recaptcha', EWZRecaptchaType::class, array(
'attr' => array(
'options' => array(
'theme' => 'light',
'type' => 'image',
'size' => 'normal',
'defer' => true,
'async' => true,
)
)
));
// ...
}
Support Google's Invisible is super easy:
<?php
public function buildForm(FormBuilder $builder, array $options)
{
// ...
$builder->add('recaptcha', EWZRecaptchaType::class, array(
'attr' => array(
'options' => array(
'theme' => 'light',
'type' => 'image',
'size' => 'invisible', // set size to invisible
'defer' => true,
'async' => true,
'callback' => 'onReCaptchaSuccess', // callback will be set by default if not defined (along with JS function that validate the form on success)
'bind' => 'btn_submit', // this is the id of the form submit button
// ...
)
)
));
// ...
}
Note: If you use the pre-defined callback, you would need to add
recaptcha-form
class to your<form>
tag.
If you need to configure the language of the captcha depending on your site language (multisite languages) you can pass the language with the "language" option:
<?php
public function buildForm(FormBuilder $builder, array $options)
{
// ...
$builder->add('recaptcha', EWZRecaptchaType::class, array(
'language' => 'en'
// ...
));
// ...
}
To validate the field use:
<?php
use EWZ\Bundle\RecaptchaBundle\Validator\Constraints as Recaptcha;
/**
* @Recaptcha\IsTrue
*/
public $recaptcha;
Another method would consist to pass the validation constraints as an options of your FormType. This way, your data class contains only meaningful properties.
If we take the example from above, the buildForm method would look like this.
Please note that if you set mapped=>false
then the annotation will not work. You have to also set constraints
:
<?php
use EWZ\Bundle\RecaptchaBundle\Form\Type\EWZRecaptchaType;
use EWZ\Bundle\RecaptchaBundle\Validator\Constraints\IsTrue as RecaptchaTrue;
public function buildForm(FormBuilder $builder, array $options)
{
// ...
$builder->add('recaptcha', EWZRecaptchaType::class, array(
'attr' => array(
'options' => array(
'theme' => 'light',
'type' => 'image',
'size' => 'normal'
)
),
'mapped' => false,
'constraints' => array(
new RecaptchaTrue()
)
));
// ...
The form template resource is now auto registered via an extension of the container. However, you can always implement your own custom form widget.
PHP:
<?php $view['form']->setTheme($form, array('EWZRecaptchaBundle:Form')) ?>
<?php echo $view['form']->widget($form['recaptcha'], array(
'attr' => array(
'options' => array(
'theme' => 'light',
'type' => 'image',
'size' => 'normal'
),
),
)) ?>
Twig:
{% form_theme form '@EWZRecaptcha/Form/ewz_recaptcha_widget.html.twig' %}
{{ form_widget(form.recaptcha, { 'attr': {
'options' : {
'theme': 'light',
'type': 'image',
'size': 'normal'
},
} }) }}
If you are not using a form, you can still implement the reCAPTCHA field using JavaScript:
PHP:
<div id="recaptcha-container"></div>
<script type="text/javascript">
$(document).ready(function() {
$.getScript("<?php echo \EWZ\Bundle\RecaptchaBundle\Form\Type\EWZRecaptchaType::RECAPTCHA_API_JS_SERVER ?>", function() {
Recaptcha.create("<?php echo $form['recaptcha']->get('public_key') ?>", "recaptcha-container", {
theme: "clean",
});
});
};
</script>
Twig:
<div id="recaptcha-container"></div>
<script type="text/javascript">
$(document).ready(function() {
$.getScript("{{ constant('\\EWZ\\Bundle\\RecaptchaBundle\\Form\\Type\\EWZRecaptchaType::RECAPTCHA_API_JS_SERVER') }}", function() {
Recaptcha.create("{{ form.recaptcha.get('public_key') }}", "recaptcha-container", {
theme: "clean"
});
});
});
</script>
If you want to use a custom theme, put your chunk of code before setting the theme:
<div id="recaptcha_widget">
<div id="recaptcha_image"></div>
<div class="recaptcha_only_if_incorrect_sol" style="color:red">Incorrect please try again</div>
<span class="recaptcha_only_if_image">Enter the words above:</span>
<span class="recaptcha_only_if_audio">Enter the numbers you hear:</span>
<input type="text" id="recaptcha_response_field" name="recaptcha_response_field" />
<div><a href="javascript:Recaptcha.reload()">Get another CAPTCHA</a></div>
<div class="recaptcha_only_if_image"><a href="javascript:Recaptcha.switch_type('audio')">Get an audio CAPTCHA</a></div>
<div class="recaptcha_only_if_audio"><a href="javascript:Recaptcha.switch_type('image')">Get an image CAPTCHA</a></div>
<div><a href="javascript:Recaptcha.showhelp()">Help</a></div>
</div>
{% form_theme form '@EWZRecaptcha/Form/ewz_recaptcha_widget.html.twig' %}
{{ form_widget(form.recaptcha, { 'attr': {
'options' : {
'theme' : 'custom',
},
} }) }}