JSON fixed to catch error and fixed mix content

src/Response.php

@@ -1,37 +1,72 @@
 <?php
-
 namespace FileManager;
-
 class Response {
 	/**
-	 * Sends JSON response
-	 *
-	 * @param     $data
-	 * @param int $code
-	 *
-	 * @return mixed
-	 */
+	* Sends JSON response
+	*
+	* @param     $data
+	* @param int $code
+	*
+	* @return mixed
+	*/
 	public static function JSON($data, $code=200)
 	{
-		header('Content-Type: application/json');
-		http_response_code($code);
-		return print_r(json_encode($data, 128));
-	}
+		// Clear json_last_error()
+		json_encode(null);
+
+		$data = self::convert_from_latin1_to_utf8_recursively($data);
+
+		$json = json_encode($data, 128);
+		if (JSON_ERROR_NONE !== json_last_error()) {
+			$data = new \Exception(sprintf(
+				'Unable to encode data to JSON in %s: %s',
+				__CLASS__,
+				json_last_error_msg()
+			));
+			http_response_code('503');
+			$json = json_encode(['message' => $data->getMessage()]);
+		}else{
+			http_response_code($code);
+		}
 
+		header('Content-Type: application/json');		
+		return print_r($json);
+	}
 	/**
-	 * Sends raw response
-	 *
-	 * @param     $mime
-	 * @param     $content
-	 * @param int $response
-	 *
-	 * @return bool
-	 */
+	* Sends raw response
+	*
+	* @param     $mime
+	* @param     $content
+	* @param int $response
+	*
+	* @return bool
+	*/
 	public static function RAW($mime, $content, $response=200)
 	{
 		header('Content-Type: ' . $mime);
 		http_response_code($response);
 		print $content;
 		return true;
 	}
-}
+
+	/**
+	* Encode array from latin1 to utf8 recursively
+	* @param $dat
+	* @return array|string
+	*/
+	public static function convert_from_latin1_to_utf8_recursively($dat)
+	{
+		if (is_string($dat)) {
+			return utf8_encode($dat);
+		} elseif (is_array($dat)) {
+			$ret = [];
+			foreach ($dat as $i => $d) $ret[ $i ] = self::convert_from_latin1_to_utf8_recursively($d);
+			return $ret;
+		} elseif (is_object($dat)) {
+			foreach ($dat as $i => $d) $dat->$i = self::convert_from_latin1_to_utf8_recursively($d);
+			return $dat;
+		} else {
+			return $dat;
+		}
+	}
+}