Cómo poner un Captcha en Formulario de Contacto de Magento1

Si necesitas mostrar el captcha predeterminado de magento1 en la página de contacto, hay que crear un módulo personalizado o instalar una extensión para esto.

A continuación te mostramos el código para la implementación como un módulo personalizado:

app/etc/modules/Mohit_Contactcaptcha.xml


<?xml version="1.0"?>
<config>
    <modules>
        <Mohit_Contactcaptcha>
            <active>true</active>
            <codePool>local</codePool>
        </Mohit_Contactcaptcha>
    </modules>
</config>

app/code/local/Mohit/Contactcaptcha/etc/config.xml


<?xml version="1.0"?>
<config>
    <modules>
        <Mohit_Contactcaptcha>
            <version>0.1.0</version>
        </Mohit_Contactcaptcha>
    </modules>
    <frontend>
        <layout>
            <updates>
                <contactcaptcha>
                    <file>contactcaptcha.xml</file>
                </contactcaptcha>
            </updates>
        </layout>
    </frontend>
    <global>
        <models>
            <contactcaptcha>
                <class>Mohit_Contactcaptcha_Model</class>
            </contactcaptcha>
        </models>
        <events>
            <controller_action_predispatch_contacts_index_post>
                <observers>
                    <contactcaptcha>
                        <class>contactcaptcha/observer</class>
                        <method>checkContacts</method>
                    </contactcaptcha>
                </observers>
            </controller_action_predispatch_contacts_index_post>
        </events>
    </global>
    <default>
        <captcha>
            <frontend>
                <areas>
                    <contacts>
                        <label>Contacts Page</label>
                    </contacts>
                </areas>
            </frontend>
        </captcha>
        <customer>
            <captcha>
                <always_for>
                    <contacts>1</contacts>
                </always_for>
            </captcha>
        </customer>
    </default>
</config>

app/code/local/Mohit/Contactcaptcha/Model/Observer.php


<?php
class Mohit_Contactcaptcha_Model_Observer
{
    public function checkContacts($observer){
        $formId = 'contacts';
        $captchaModel = Mage::helper('captcha')->getCaptcha($formId);
        if ($captchaModel->isRequired()){
            $controller = $observer->getControllerAction();
            $word = $this->_getCaptchaString($controller->getRequest(), $formId);
            if (!$captchaModel->isCorrect($word)) {
                Mage::getSingleton('customer/session')->addError(Mage::helper('captcha')->__('Incorrect CAPTCHA.'));
                $controller->setFlag('', Mage_Core_Controller_Varien_Action::FLAG_NO_DISPATCH, true);
                $url =  Mage::getUrl('contacts');
                $controller->getResponse()->setRedirect($url);
            }
        }
        return $this;
    }
    /**
    * Get Captcha String
    *
    * @param Varien_Object $request
    * @param string $formId
    * @return string
    */
    protected function _getCaptchaString($request, $formId)
    {
        $captchaParams = $request->getPost(Mage_Captcha_Helper_Data::INPUT_NAME_FIELD_VALUE);
        return $captchaParams[$formId];
    }
}

app/design/frontend/default/default/layout/contactcaptcha.xml


<?xml version="1.0"?>
<layout version="0.1.0">
    <contacts_index_index>
        <reference name="contactForm">
            <action method="setTemplate"><template>contactcaptcha/contacts/form.phtml</template></action>
            <block type="core/text_list" name="form.additional.info">
                <block type="captcha/captcha" name="captcha">
                    <reference name="head">
                        <action method="addJs"><file>mage/captcha.js</file></action>
                    </reference>
                    <action method="setFormId"><formId>contacts</formId></action>
                    <action method="setImgWidth"><width>230</width></action>
                    <action method="setImgHeight"><width>50</width></action>
                </block>
            </block>
        </reference>
    </contacts_index_index>
</layout>

app/design/frontend/default/default/template/contactcaptcha/contacts/form.phtml


<?php
/**
 * Magento
 *
 * @category    design
 * @package     base_default
 * @copyright   Copyright (c) 2013 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
 */
?>
<div id="messages_product_view"><?php echo $this->getMessagesBlock()->getGroupedHtml() ?></div>
<div class="page-title">
    <h1><?php echo Mage::helper('contacts')->__('Contact Us') ?></h1>
</div>
<form action="<?php echo $this->getFormAction(); ?>" id="contactForm" method="post">
    <div class="fieldset">
        <h2 class="legend"><?php echo Mage::helper('contacts')->__('Contact Information') ?></h2>
        <ul class="form-list">
            <li class="fields">
                <div class="field">
                    <label for="name" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Name') ?></label>
                    <div class="input-box">
                        <input name="name" id="name" title="<?php echo Mage::helper('contacts')->__('Name') ?>" value="<?php echo $this->escapeHtml($this->helper('contacts')->getUserName()) ?>" class="input-text required-entry" type="text" />
                    </div>
                </div>
                <div class="field">
                    <label for="email" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Email') ?></label>
                    <div class="input-box">
                        <input name="email" id="email" title="<?php echo Mage::helper('contacts')->__('Email') ?>" value="<?php echo $this->escapeHtml($this->helper('contacts')->getUserEmail()) ?>" class="input-text required-entry validate-email" type="text" />
                    </div>
                </div>
            </li>
            <li>
                <label for="telephone"><?php echo Mage::helper('contacts')->__('Telephone') ?></label>
                <div class="input-box">
                    <input name="telephone" id="telephone" title="<?php echo Mage::helper('contacts')->__('Telephone') ?>" value="" class="input-text" type="text" />
                </div>
            </li>
            <li class="wide">
                <label for="comment" class="required"><em>*</em><?php echo Mage::helper('contacts')->__('Comment') ?></label>
                <div class="input-box">
                    <textarea name="comment" id="comment" title="<?php echo Mage::helper('contacts')->__('Comment') ?>" class="required-entry input-text" cols="5" rows="3"></textarea>
                </div>
            </li>
            <?php echo $this->getChildHtml('form.additional.info'); ?>
        </ul>
    </div>
    <div class="buttons-set">
        <p class="required"><?php echo Mage::helper('contacts')->__('* Required Fields') ?></p>
        <input type="text" name="hideit" id="hideit" value="" style="display:none !important;" />
        <button type="submit" title="<?php echo Mage::helper('contacts')->__('Submit') ?>" class="button"><span><span><?php echo Mage::helper('contacts')->__('Submit') ?></span></span></button>
    </div>
</form>
<script type="text/javascript">
//<![CDATA[
    var contactForm = new VarienForm('contactForm', true);
//]]>
</script>

Borrar la cache de magento1

Después de crear el módulo, inicie sesión en el panel de control de Magento1 y vaya a Sistema> Configuración> Clientes> Configuración de cliente> Captcha y seleccione Página de contactos de entre las opciones dadas.

Borrar la cache de magento1 y actualizar la página de contacto de tu web /contacts.

Puedes descargar los archivos del módulo aquí.