Fix: Add support for DELETE methods (#3)

* Fix: Add support for DELETE methods

* Bail early since we're not returning a JSON string

src/Getnet/API/Request.php

@@ -16,11 +16,12 @@ class Request {
      * @var string
      */
     private $baseUrl = '';
-
-    const CURL_TYPE_AUTH = "AUTH";
-    const CURL_TYPE_POST = "POST";
-    const CURL_TYPE_PUT  = "PUT";
-    const CURL_TYPE_GET  = "GET";
+
+    const CURL_TYPE_AUTH   = "AUTH";
+    const CURL_TYPE_POST   = "POST";
+    const CURL_TYPE_PUT    = "PUT";
+    const CURL_TYPE_GET    = "GET";
+    const CURL_TYPE_DELETE = "DELETE";
 
     /**
      * Request constructor.
@@ -29,7 +30,7 @@ class Request {
      */
     public function __construct(Getnet $credentials) {
         $this->baseUrl = $credentials->getEnvironment()->getApiUrl();
-        
+
         if (!$credentials->getAuthorizationToken()) {
             $this->auth($credentials);
         }
@@ -42,11 +43,11 @@ public function __construct(Getnet $credentials) {
      * @throws Exception
      */
     public function auth(Getnet $credentials) {
-        
+
         if ($this->verifyAuthSession($credentials)) {
             return $credentials;
         }
-        
+
         $url_path = "/auth/oauth/v2/token";
 
         $params = [
@@ -63,42 +64,42 @@ public function auth(Getnet $credentials) {
         }
 
         $credentials->setAuthorizationToken($response["access_token"]);
-        
+
         //Save auth session
         if ($credentials->getKeySession()) {
             $response['generated'] = microtime(true);
             $_SESSION[$credentials->getKeySession()] = $response;
         }
-        
+
         return $credentials;
     }
-    
+
     /**
      * start session for use
-     * 
+     *
      * @param Getnet $credentials
      * @return boolean
      */
     private function verifyAuthSession(Getnet $credentials){
-        
+
         if ($credentials->getKeySession() && isset($_SESSION[$credentials->getKeySession()]) && $_SESSION[$credentials->getKeySession()]["access_token"]) {
-            
+
             $auth = $_SESSION[$credentials->getKeySession()];
             $now  = microtime(true);
             $init = $auth["generated"];
-            
+
             if (($now - $init) < $auth["expires_in"]) {
                 $credentials->setAuthorizationToken($auth["access_token"]);
-                
+
                 return true;
             }
         }
-        
+
         return false;
     }
-    
+
     /**
-     * 
+     *
      * @param Getnet $credentials
      * @param mixed $url_path
      * @param mixed $method
@@ -127,11 +128,14 @@ private function send(Getnet $credentials, $url_path, $method, $json = NULL) {
             curl_setopt($curl, CURLOPT_POSTFIELDS, $json);
         } elseif ($method == self::CURL_TYPE_GET) {
             $defaultCurlOptions[CURLOPT_HTTPHEADER][] = 'Authorization: Bearer ' . $credentials->getAuthorizationToken();
+        } elseif ($method == self::CURL_TYPE_DELETE) {
+            $defaultCurlOptions[CURLOPT_HTTPHEADER][] = 'Authorization: Bearer ' . $credentials->getAuthorizationToken();
+            curl_setopt($curl, CURLOPT_CUSTOMREQUEST, self::CURL_TYPE_DELETE);
         } elseif ($method == self::CURL_TYPE_PUT) {
             $defaultCurlOptions[CURLOPT_HTTPHEADER][] = 'Authorization: Bearer ' . $credentials->getAuthorizationToken();
             curl_setopt($curl, CURLOPT_CUSTOMREQUEST, self::CURL_TYPE_PUT);
             curl_setopt($curl, CURLOPT_POSTFIELDS, $json);
-            
+
         } elseif ($method == self::CURL_TYPE_AUTH) {
             $defaultCurlOptions[CURLOPT_HTTPHEADER][0] = 'application/x-www-form-urlencoded';
             curl_setopt($curl, CURLOPT_USERPWD, $credentials->getClientId() . ":" . $credentials->getClientSecret());
@@ -154,6 +158,14 @@ private function send(Getnet $credentials, $url_path, $method, $json = NULL) {
         if (curl_getinfo($curl, CURLINFO_HTTP_CODE) >= 400) {
             throw new Exception($response, 100);
         }
+
+        // Status code 204 don't have content. That means $response will be always false
+        // Provides a custom content for $response to avoid error in the next if logic
+        if (curl_getinfo($curl, CURLINFO_HTTP_CODE) == 204) {
+            curl_close($curl);
+            return ['status_code' => 204];
+        }
+
         if (! $response) {
             print "ERROR";
             EXIT();
@@ -209,7 +221,7 @@ public function post(Getnet $credentials, $url_path, $params) {
     }
 
     /**
-     * 
+     *
      * @param Getnet $credentials
      * @param mixed $url_path
      * @param mixed $params
@@ -219,5 +231,16 @@ public function post(Getnet $credentials, $url_path, $params) {
     public function put(Getnet $credentials, $url_path, $params) {
         return $this->send($credentials, $url_path, self::CURL_TYPE_PUT, $params);
     }
-
+
+    /**
+     *
+     * @param Getnet $credentials
+     * @param mixed $url_path
+     * @return mixed
+     * * @throws Exception
+     */
+    public function delete(Getnet $credentials, $url_path) {
+        return $this->send($credentials, $url_path, self::CURL_TYPE_DELETE);
+    }
+
 }