small update

server/command.py

@@ -89,7 +89,7 @@ class AbstractCommand(ABC):
         if content_type:
             message += f"Content-Type: {content_type}"
             if content_type.startswith("text"):
-                message += "; charset=UTF-8"
+                message += f"; charset={FORMAT}"
             message += "\r\n"
         elif content_length > 0:
             message += f"Content-Type: application/octet-stream\r\n"
@@ -141,6 +141,20 @@ class AbstractCommand(ABC):
 
         return True
 
+    def get_mimetype(self, path):
+        mime = mimetypes.guess_type(path)[0]
+
+        if mime:
+            return mime
+
+        try:
+            file = open(path, "r", encoding=FORMAT)
+            file.readline()
+            file.close()
+            return "text/plain"
+        except UnicodeDecodeError:
+            return "application/octet-stream"
+
 
 class AbstractModifyCommand(AbstractCommand, ABC):
 
@@ -191,7 +205,7 @@ class HeadCommand(AbstractCommand):
     def execute(self):
         path = self._get_path()
 
-        mime = mimetypes.guess_type(path)[0]
+        mime = self.get_mimetype(path)
         return self._build_message(200, mime, b"")
 
 
@@ -204,20 +218,6 @@ class GetCommand(AbstractCommand):
     def _conditional_headers(self):
         return {'if-modified-since': self._if_modified_since}
 
-    def get_mimetype(self, path):
-        mime = mimetypes.guess_type(path)[0]
-
-        if mime:
-            return mime
-
-        try:
-            file = open(path, "r", encoding="utf-8")
-            file.readline()
-            file.close()
-            return "text/plain"
-        except UnicodeDecodeError:
-            return "application/octet-stream"
-
     def execute(self):
         path = self._get_path()
         mime = self.get_mimetype(path)