feat : feed auth

app/code/Joshine/InstagramFeed/Block/ApiAddress.php

@@ -11,7 +11,12 @@ use Magento\Store\Model\ScopeInterface;
 class ApiAddress extends Template
 {
     const INSTAGRAM_API_BASE_URL = 'https://api.instagram.com';
-    const INSTAGRAM_AUTH_URL = 'oauth/authorize';
+
+    const INSTAGRAM_GRAPH_API_URL = "https://graph.instagram.com";
+
+    const INSTAGRAM_AUTH_URL  = 'oauth/authorize';
+
+    const INSTAGRAM_TOKEN_URL = 'oauth/access_token';
 
     const REDIRECT_URL = 'admin/joshine_instagram/oauth/redirect';
 
@@ -36,6 +41,16 @@ class ApiAddress extends Template
             );
     }
 
+    public function getLongTokenUrl()
+    {
+        return self::INSTAGRAM_GRAPH_API_URL."/access_token";
+    }
+
+    public function getTokenUrl() :string
+    {
+        return self::INSTAGRAM_API_BASE_URL.'/'.self::INSTAGRAM_TOKEN_URL;
+    }
+
     public function getAppSecret()
     {
         return $this->_objectManager->get(ScopeConfigInterface::class)

app/code/Joshine/InstagramFeed/Controller/Adminhtml/OAuth/Redirect.php

 <?php
 
 namespace Joshine\InstagramFeed\Controller\Adminhtml\OAuth;
+use Joshine\InstagramFeed\Block\ApiAddress;
 use \Magento\Backend\App\Action;
+use Magento\Backend\App\Action\Context;
+
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magento\Framework\HTTP\Client\Curl;
+use Magento\Store\Model\ScopeInterface;
+
 class Redirect extends Action
 {
     protected $_publicActions = ['redirect'];
+
+    protected $_apiAddress;
+    /**
+     * @var ApiAddress
+     */
+    private $_curlClient;
+
+    /**
+     * @var \Magento\Framework\App\Config\Storage\WriterInterface
+     */
+    private $_configWriter;
+
+    private $_cacheTypeList;
+
+    public function __construct(
+        Context $context,
+        Curl $curl,
+        \Magento\Framework\App\Config\Storage\WriterInterface $configWriter,
+        ApiAddress $apiAddress,
+        \Magento\Framework\App\Cache\TypeListInterface $cacheTypeList
+    )
+    {
+        $this->_curlClient   = $curl;
+        $this->_configWriter  = $configWriter;
+        $this->_apiAddress   = $apiAddress;
+        $this->_cacheTypeList = $cacheTypeList;
+        parent::__construct($context);
+    }
+
+    public function getCurlClient()
+    {
+        return $this->_curlClient;
+    }
+
     public function execute()
     {
-        echo "1111";
-        // TODO: Implement execute() method.
+        $codeRaw = $this->getRequest()->getParam('code');
+        if (!$codeRaw) {
+            return "Error Code";
+        }
+        $code = rtrim($codeRaw, "#_");
+
+        try {
+            $oauthRes = $this->getToken($code);
+
+            if (!isset($oauthRes['access_token'])) {
+                return;
+            }
+
+            $longTokenRaw = $this->getLongToken($oauthRes["access_token"]);
+            $longToken    = json_decode($longTokenRaw, true);
+            if (!isset($longToken['access_token'])) {
+                echo $longTokenRaw;
+                return;
+            }
+            $userId        = $oauthRes['user_id'];
+            $longLifeToken = $oauthRes['access_token'];
+            $this->_configWriter->save("joshine_instagram_feed/general/user_id",  $userId);
+            $this->_configWriter->save("joshine_instagram_feed/general/access_token",  $longLifeToken);
+            $this->_cacheTypeList->cleanType(\Magento\Framework\App\Cache\Type\Config::TYPE_IDENTIFIER);
+            echo  "Success!";
+            return;
+        } catch (\Exception $e) {
+            \Magento\Framework\App\ObjectManager::getInstance()
+                ->get('Psr\Log\LoggerInterface')->warning($e->getMessage());
+        }
+        echo  "Something error, try again";
+    }
+
+    private function getLongToken($token)
+    {
+        $url = $this->_apiAddress->getLongTokenUrl()."?grant_type=ig_exchange_token"
+        ."&client_secret={$this->_apiAddress->getAppSecret()}"
+        ."&access_token={$token}";
+
+        $this->getCurlClient()->get($url);
+        $this->getCurlClient()
+            ->setOptions([
+                CURLOPT_SSL_VERIFYHOST => false,
+                CURLOPT_SSL_VERIFYPEER => false
+            ]);
+
+        return $this->getCurlClient()->getBody();
+    }
+
+    private function getToken($code)
+    {
+        $request = [
+            'code'          => $code,
+            'client_secret' => $this->_apiAddress->getAppSecret(),
+            'redirect_uri'  => $this->_apiAddress->redirectUri(),
+            'grant_type'    => 'authorization_code',
+            'client_id'     => $this->_apiAddress->getAppid(),
+        ];
+        $this->getCurlClient()->post($this->_apiAddress->getTokenUrl(), $request);
+        $this->getCurlClient()
+            ->setOptions([
+                CURLOPT_SSL_VERIFYHOST => false,
+                CURLOPT_SSL_VERIFYPEER => false
+            ]);
+
+        if ($this->getCurlClient()->getStatus() != 200) {
+            ob_clean();
+            echo $this->getCurlClient()->getBody();
+            return [];
+        }
+        return json_decode($this->getCurlClient()->getBody(), true);
     }
 }
\ No newline at end of file