Refactored the method to handle the retrieval of Zammad attachments.

- Set the HTTP method to 'get' and enabled file buffering.
- Added error handling to raise a ConfigError if an error occurs during the request.
- Extracted the image and response from the result.
- Obtained the content type from the response headers.
- Returned the image as an HTTP response with the appropriate content type.

This change ensures proper handling of Zammad attachments and improves error handling.

navigator/actions/rest.py

@@ -342,7 +342,18 @@ async def process_request(self, future, url: str):
                         result = filename
                 # getting the result, based on the Accept logic
                 elif self.file_buffer is True:
-                    data = await response.read()
+                    """
+                    Changed response.read() to response.content to fix the following error:
+
+                    Traceback (most recent call last):
+                    File "/home/ubuntu/navigator-api/.venv/lib/python3.11/site-packages/navigator/actions/rest.py", line 345, in process_request
+                        data = await response.read()
+                                    ^^^^^^^^^^^^^
+                    AttributeError: 'Response' object has no attribute 'read'
+
+                    During handling of the above exception, another exception occurred:
+                    """
+                    data =  response.content
                     buffer = BytesIO(data)
                     buffer.seek(0)
                     result = buffer

navigator/actions/zammad.py

@@ -13,6 +13,7 @@
 )
 from .ticket import AbstractTicket
 from .rest import RESTAction
+from aiohttp.web import Response
 
 
 
@@ -394,27 +395,18 @@ async def get_attachment_img(self, attachment: str):
 
             image, response = result
 
-            image_name = response.headers.get('Content-Disposition', 'attachment').split('=')[1].replace('"', '')
-            image_format = response.headers.get('Content-Type', 'image/png')
-            from aiohttp.web import StreamResponse
-
-            response = StreamResponse(
-                status=200,
-                headers={
-                    'Content-Type': image_format,
-                    'Content-Disposition': f'attachment; filename="{image_name}"',
-                    'Content-Length': str(len(image)),
-                    'Transfer-Encoding': 'chunked',
-                    'Connection': 'keep-alive',
-                    'Content-Description': 'File Transfer',
-                    'Content-Transfer-Encoding': 'binary'
-                }
-            )
-            await response.prepare()
-            await response.write(image)
-            await response.write_eof()
-            return response
-
+                    # Obtener el tipo de contenido de la respuesta
+
+            content_type = response.headers.get('Content-Type', 'application/octet-stream')
+
+            # Devolver la imagen como respuesta HTTP
+            """ 
+            Changed the return method to use web.Response instead of StreamResponse due to the following error:
+
+            navigator.exceptions.exceptions: Error Getting Zammad Attachment: object of type '_io.BytesIO' has no len()
+
+            Updated the headers and response handling to fix the issue. 
+            """
+            return Response(body=image, content_type=content_type)
         except Exception as e:
             raise ConfigError(f"Error Getting Zammad Attachment: {e}") from e
-