Feature/#223 ui to add backend

Block/System/Config/Form/Field/CreateBackendBtn.php

@@ -0,0 +1,88 @@
+<?php
+/**
+ * Fastly CDN for Magento
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Fastly CDN for Magento End User License Agreement
+ * that is bundled with this package in the file LICENSE_FASTLY_CDN.txt.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade Fastly CDN to newer
+ * versions in the future. If you wish to customize this module for your
+ * needs please refer to http://www.magento.com for more information.
+ *
+ * @category    Fastly
+ * @package     Fastly_Cdn
+ * @copyright   Copyright (c) 2016 Fastly, Inc. (http://www.fastly.com)
+ * @license     BSD, see LICENSE_FASTLY_CDN.txt
+ */
+namespace Fastly\Cdn\Block\System\Config\Form\Field;
+
+use Magento\Config\Block\System\Config\Form\Field;
+use Magento\Framework\Data\Form\Element\AbstractElement;
+
+/**
+ * Class CreateBackendBtn
+ * @package Fastly\Cdn\Block\System\Config\Form\Field
+ */
+class CreateBackendBtn extends Field
+{
+    protected function _construct() // @codingStandardsIgnoreLine - required by parent class
+    {
+        $this->_template = 'Fastly_Cdn::system/config/form/field/createBackendBtn.phtml';
+
+        parent::_construct();
+    }
+
+    /**
+     * Remove scope label
+     *
+     * @param  AbstractElement $element
+     * @return string
+     */
+    public function render(AbstractElement $element)
+    {
+        $element->unsScope()->unsCanUseWebsiteValue()->unsCanUseDefaultValue();
+        return parent::render($element);
+    }
+
+    /**
+     * Return element html
+     *
+     * @param  AbstractElement $element
+     * @return string
+     */
+    protected function _getElementHtml(AbstractElement $element) // @codingStandardsIgnoreLine - required by parent class
+    {
+        return $this->_toHtml();
+    }
+
+    /**
+     * Return ajax url for collect button
+     *
+     * @return string
+     */
+    public function getAjaxUrl()
+    {
+        return $this->getUrl('adminhtml/fastlyCdn/vcl/serviceinfo');
+    }
+
+    /**
+     * Render Create Backend button HTML
+     * @return mixed
+     * @throws \Magento\Framework\Exception\LocalizedException
+     */
+    public function getButtonHtml()
+    {
+        $button = $this->getLayout()->createBlock(
+            'Magento\Backend\Block\Widget\Button'
+        )->setData([
+            'id'    => 'fastly_create_backend_button',
+            'label' => __('Create')
+        ]);
+
+        return $button->toHtml();
+    }
+}

Controller/Adminhtml/FastlyCdn/Backend/CreateBackend.php

@@ -0,0 +1,256 @@
+<?php
+/**
+ * Fastly CDN for Magento
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Fastly CDN for Magento End User License Agreement
+ * that is bundled with this package in the file LICENSE_FASTLY_CDN.txt.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade Fastly CDN to newer
+ * versions in the future. If you wish to customize this module for your
+ * needs please refer to http://www.magento.com for more information.
+ *
+ * @category    Fastly
+ * @package     Fastly_Cdn
+ * @copyright   Copyright (c) 2016 Fastly, Inc. (http://www.fastly.com)
+ * @license     BSD, see LICENSE_FASTLY_CDN.txt
+ */
+namespace Fastly\Cdn\Controller\Adminhtml\FastlyCdn\Backend;
+
+use Magento\Backend\App\Action;
+use Magento\Backend\App\Action\Context;
+use Magento\Framework\App\Request\Http;
+use Magento\Framework\Controller\Result\JsonFactory;
+use Fastly\Cdn\Model\Api;
+use Fastly\Cdn\Helper\Vcl;
+use Fastly\Cdn\Model\Config;
+use Magento\Framework\Exception\LocalizedException;
+
+/**
+ * Class CreateBackend
+ * @package Fastly\Cdn\Controller\Adminhtml\FastlyCdn\Backend
+ */
+class CreateBackend extends Action
+{
+    /**
+     * @var Http
+     */
+    private $request;
+    /**
+     * @var JsonFactory
+     */
+    private $resultJson;
+    /**
+     * @var Api
+     */
+    private $api;
+    /**
+     * @var Vcl
+     */
+    private $vcl;
+    /**
+     * @var Config
+     */
+    private $config;
+
+    /**
+     * ConfigureBackend constructor
+     *
+     * @param Context $context
+     * @param Http $request
+     * @param JsonFactory $resultJsonFactory
+     * @param Api $api
+     * @param Vcl $vcl
+     * @param Config $config
+     */
+    public function __construct(
+        Context $context,
+        Http $request,
+        JsonFactory $resultJsonFactory,
+        Api $api,
+        Vcl $vcl,
+        Config $config
+    ) {
+        $this->request = $request;
+        $this->resultJson = $resultJsonFactory;
+        $this->api = $api;
+        $this->vcl = $vcl;
+        $this->config = $config;
+        parent::__construct($context);
+    }
+
+    /**
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\Result\Json|\Magento\Framework\Controller\ResultInterface
+     */
+    public function execute()
+    {
+        $result = $this->resultJson->create();
+        try {
+            $address = $this->getRequest()->getParam('address');
+            $form = $this->getRequest()->getParam('form');
+            $this->validateAddress($address);
+
+            if ($form == 'false') {
+                return $result->setData(['status' => true]);
+            }
+
+            $name = $this->getRequest()->getParam('name');
+            $this->validateName($name);
+
+            $maxTls = $this->processRequest('max_tls_version');
+            $minTls = $this->processRequest('min_tls_version');
+            $this->validateVersion((float)$maxTls, (float)$minTls);
+
+            $activate_flag = $this->getRequest()->getParam('activate_flag');
+            $activeVersion = $this->getRequest()->getParam('active_version');
+
+            $service = $this->api->checkServiceDetails();
+            $this->vcl->checkCurrentVersionActive($service->versions, $activeVersion);
+            $currActiveVersion = $this->vcl->getCurrentVersion($service->versions);
+            $clone = $this->api->cloneVersion($currActiveVersion);
+
+            $tlsYesPort = $this->getRequest()->getParam('tls_yes_port');
+            $tlsNoPort = $this->getRequest()->getParam('tls_no_port');
+
+            $port = $tlsYesPort;
+            $useSsl = $this->getRequest()->getParam('use_ssl');
+
+            $autoLoadBalance = $this->getRequest()->getParam('auto_loadbalance');
+
+            if ($useSsl != '1') {
+                $port = $tlsNoPort;
+            }
+
+            $sslCertHostname = $this->processRequest('ssl_cert_hostname');
+            $sslSniHostname = $this->processRequest('ssl_sni_hostname');
+            $sslCaCert = $this->processRequest('ssl_ca_cert');
+
+            $params = [
+                'address'               => $this->getRequest()->getParam('address'),
+                'auto_loadbalance'      => $autoLoadBalance,
+                'between_bytes_timeout' => $this->getRequest()->getParam('between_bytes_timeout'),
+                'connect_timeout'       => $this->getRequest()->getParam('connect_timeout'),
+                'first_byte_timeout'    => $this->getRequest()->getParam('first_byte_timeout'),
+                'max_conn'              => $this->getRequest()->getParam('max_conn'),
+                'name'                  => $name,
+                'port'                  => $port,
+                'request_condition'     => $this->getRequest()->getParam('request_condition'),
+                'service_id'            => $service->id,
+                'shield'                => $this->getRequest()->getParam('shield'),
+                'use_ssl'               => $useSsl,
+                'version'               => $clone->number
+            ];
+
+            if ($useSsl == '1') {
+                $params += [
+                    'ssl_ca_cert'           => $sslCaCert,
+                    'ssl_cert_hostname'     => $sslCertHostname,
+                    'ssl_ciphers'           => $this->processRequest('ssl_ciphers'),
+                    'ssl_client_cert'       => $this->processRequest('ssl_client_cert'),
+                    'ssl_client_key'        => $this->processRequest('ssl_client_key'),
+                    'ssl_sni_hostname'      => $sslSniHostname,
+                    'max_tls_version'       => $maxTls,
+                    'min_tls_version'       => $minTls,
+                ];
+            }
+
+            if ($autoLoadBalance == '1') {
+                $params += [
+                    'weight' => $this->getRequest()->getParam('weight')
+                ];
+            }
+
+            $createBackend = $this->api->createBackend($params, $clone->number);
+
+            if (!$createBackend) {
+                return $result->setData([
+                    'status'    => false,
+                    'msg'       => 'Failed to create Backend.'
+                ]);
+            }
+
+            $this->api->validateServiceVersion($clone->number);
+
+            if ($activate_flag === 'true') {
+                $this->api->activateVersion($clone->number);
+            }
+            if ($this->config->areWebHooksEnabled() && $this->config->canPublishConfigChanges()) {
+                $this->api->sendWebHook(
+                    '*Backend '
+                    . $this->getRequest()->getParam('name')
+                    . ' has been created in Fastly version '
+                    . $clone->number
+                    . '*'
+                );
+            }
+
+            $comment = [
+                'comment' => 'Magento Module created the "'.$this->getRequest()->getParam('name').'" Backend '
+            ];
+            $this->api->addComment($clone->number, $comment);
+
+            return $result->setData([
+                'status'            => true,
+                'active_version'    => $clone->number
+            ]);
+        } catch (\Exception $e) {
+            return $result->setData([
+                'status'    => false,
+                'msg'       => $e->getMessage()
+            ]);
+        }
+    }
+
+    /**
+     * @param $address
+     * @throws LocalizedException
+     */
+    private function validateAddress($address)
+    {
+        if (!filter_var($address, FILTER_VALIDATE_IP) &&
+            !filter_var($address, FILTER_VALIDATE_DOMAIN, FILTER_FLAG_HOSTNAME)) {
+            throw new LocalizedException(__('Address '.$address.' is not a valid IPv4, IPv6 or hostname'));
+        }
+    }
+
+    /**
+     * @param $name
+     * @throws LocalizedException
+     */
+    private function validateName($name)
+    {
+        if (trim($name) == "") {
+            throw new LocalizedException(__("Name can't be blank"));
+        }
+    }
+
+    /**
+     * @param $maxTls
+     * @param $minTls
+     * @throws LocalizedException
+     */
+    private function validateVersion($maxTls, $minTls)
+    {
+        if ($maxTls == 0) {
+            return;
+        } elseif ($maxTls < $minTls) {
+            throw new LocalizedException(__("Maximum TLS version must be higher than the minimum TLS version."));
+        }
+    }
+
+    /**
+     * @param $param
+     * @return mixed|null
+     */
+    private function processRequest($param)
+    {
+        $request = $this->getRequest()->getParam($param);
+        if ($request == '') {
+            return null;
+        }
+        return $request;
+    }
+}

Model/Api.php

@@ -881,6 +881,20 @@ public function configureBackend($params, $version, $old_name)
         return $result;
     }
 
+    /**
+     * @param $params
+     * @param $version
+     * @return bool|mixed
+     * @throws LocalizedException
+     */
+    public function createBackend($params, $version)
+    {
+        $url = $this->_getApiServiceUri(). 'version/'. $version. '/backend';
+        $result = $this->_fetch($url, \Zend_Http_Client::POST, $params);
+
+        return $result;
+    }
+
     /**
      * Send message to Slack channel
      *

etc/adminhtml/system.xml

@@ -237,10 +237,18 @@
                     =========================== -->
                     <group id="fastly_backend_settings" sortOrder="100" translate="label comment" showInDefault="1" showInWebsite="0" showInStore="0">
                         <label>Backend Settings</label>
+                        <!-- =========================
+                             Create Backend button
+                        ========================== -->
+                        <field id="create_backend" translate="label comment" sortOrder="5" showInDefault="1" showInStore="0" showInWebsite="0">
+                            <label><![CDATA[Create Backend]]></label>
+                            <comment><![CDATA[]]></comment>
+                            <frontend_model>Fastly\Cdn\Block\System\Config\Form\Field\CreateBackendBtn</frontend_model>
+                        </field>
                         <!-- ==================
                              Backends field
                         =================== -->
-                        <field id="backends" translate="label comment tooltip" sortOrder="5" showInDefault="1" showInWebsite="0" showInStore="0">
+                        <field id="backends" translate="label comment tooltip" sortOrder="10" showInDefault="1" showInWebsite="0" showInStore="0">
                             <label>Backends</label>
                             <frontend_model>Fastly\Cdn\Block\System\Config\Form\Field\Backend</frontend_model>
                             <comment>