From d6d9daabf07d1517e37b0b4aa5effdcfcb614e59 Mon Sep 17 00:00:00 2001
From: Martin Weick <e1627760@student.tuwien.ac.at>
Date: Mon, 7 Dec 2020 12:41:32 +0100
Subject: [PATCH] #3 add delete all

---
 middleware/app_be/services/minioservice.py | 34 ++++++++++++++++++++++
 middleware/app_be/views/rest_api.py        |  4 +++
 2 files changed, 38 insertions(+)

diff --git a/middleware/app_be/services/minioservice.py b/middleware/app_be/services/minioservice.py
index 20e35a6..97bc090 100644
--- a/middleware/app_be/services/minioservice.py
+++ b/middleware/app_be/services/minioservice.py
@@ -1,5 +1,8 @@
+import base64
+import hashlib
 from typing import Union
 
+import xml.etree.ElementTree as ET
 import requests
 from django.conf import settings
 
@@ -70,4 +73,35 @@ class MinioService:
                 print("Something went wrong while deleting")
         except:
             return False
+        return True
+
+    @staticmethod
+    def delete_all() -> bool:
+        """Delete every file from the dropbox storage.
+
+        :return: Whether the storage was successfully emptied
+        """
+        try:
+            r = requests.get(settings.AWS_HOST + "?list")
+            root = ET.fromstring(r.content)
+            list = []
+            for child in root.iter('{http://s3.amazonaws.com/doc/2006-03-01/}Contents'):
+                list.append(child.find('{http://s3.amazonaws.com/doc/2006-03-01/}Key').text)
+
+            body = "<Delete>"
+            for key in list:
+                body += "<Object><Key>" + key + "</Key></Object>"
+
+            body += "</Delete>"
+            print(body)
+            header = {"Content-MD5": base64.b64encode(hashlib.md5(body.encode()).digest()),
+                      'Content-Type': 'binary/application/xml'}
+            r = requests.post(settings.AWS_HOST + "?delete", data=body, headers=header)
+            if r.status_code == 200:
+                print("Successfully deleted all files!")
+            else:
+                print("Something went wrong by deleting", r.status_code, r.content)
+                exit()
+        except:
+            return False
         return True
\ No newline at end of file
diff --git a/middleware/app_be/views/rest_api.py b/middleware/app_be/views/rest_api.py
index bd99437..7d66728 100644
--- a/middleware/app_be/views/rest_api.py
+++ b/middleware/app_be/views/rest_api.py
@@ -146,6 +146,10 @@ class ImageEndpoint:
             print('Error deleting dropbox folder')
             result_bool = False
 
+        if not MinioService.delete_all():
+            print('Error deleting minio folder')
+            result_bool = False
+
         return JsonResponse({'Result': result_bool}, safe=False)
 
     @staticmethod