dev@locazia: edit config manager

app/core/models/_config.py

@@ -1,32 +1,64 @@
+import string
+
 from app.core.logger import make_log
 from json import loads as json_loads
 from json import dumps as json_dumps
+from random import choice
+from subprocess import Popen, PIPE
 
 
 class ConfigFile:
     def __init__(self, filepath: str):
         self.filepath = filepath
+        self.values
+
+    @property
+    def values(self):
         with open(self.filepath, 'r') as file:
-            self.values = json_loads(file.read())
+            return json_loads(file.read())
 
         assert isinstance(self.values, dict)
 
     def get(self, key, default=None):
         return self.values.get(key, default)
 
-    def save(self):
-        with open(self.filepath, 'w') as file:
+    def set(self, key, value):
+        random_part = choice(string.ascii_lowercase)
+        app_cached_values = self.values
+        app_cached_values[key] = value
+        with open(f"{'/'.join(self.filepath.split('/')[:-1])}/.backup_{self.filepath.split('/')[-1]}_{random_part}", 'w') as file:
             file.write(
                 json_dumps(
-                    self.values,
+                    app_cached_values,
+                    indent=4,
+                    sort_keys=True
+                )
+            )
+
+        with open(self.filepath, 'w') as file:
+            file.write(
+                json_dumps(
+                    app_cached_values,
                     indent=4,
                     sort_keys=True
                 )
             )
 
-    def set(self, key, value):
-        self.values[key] = value
-        self.save()
         make_log("ConfigFile", f"Edited {key}", level="debug")
+        p1 = Popen(["md5sum", self.filepath], stdout=PIPE, stderr=PIPE)
+        p1.wait()
+        out1, err1 = p1.communicate()
+        p2 = Popen(["md5sum", f"{'/'.join(self.filepath.split('/')[:-1])}/.backup_{self.filepath.split('/')[-1]}_{random_part}"], stdout=PIPE, stderr=PIPE)
+        p2.wait()
+        out2, err2 = p2.communicate()
+        if err1 or err2:
+            make_log("ConfigFile", f"Error when editing {key} (check md5sum): {err1} {err2}", level="error")
+            return self.set(key, value)
 
+        fingerprint1 = out1.split()[0].strip()
+        fingerprint2 = out2.split()[0].strip()
+
+        if fingerprint1 != fingerprint2:
+            make_log("ConfigFile", f"Error when editing {key} (check md5sum): {fingerprint1} {fingerprint2}", level="error")
+            return self.set(key, value)