extend prototype for qmail toggling

autoreply_editor/main.py

@@ -1,5 +1,6 @@
 """Provide basic settings and views"""
 
+import fileinput
 import re
 from pathlib import Path
 from flask import request, render_template
@@ -8,10 +9,13 @@ from autoreply_editor import app
 
 basic_auth = BasicAuth(app)
 
+qmail_prefix = f"{str(Path.home())}/.qmail-"
+maildrop_line = "|maildrop $HOME/.filter-autoreply"
 
 def qmail_status(user):
     """Find out whether the filter is currently activated for the given mail user"""
-    with open(f"{str(Path.home())}/.qmail-{user}", encoding="utf8") as dotqmail:
+    with open(f"{qmail_prefix}{user}", encoding="utf8") as dotqmail:
+        # TODO: RE not necessary here
         if not re.search(
             r"^\|maildrop \$HOME/\.filter-autoreply$", dotqmail.read(), re.MULTILINE
         ):
@@ -37,11 +41,34 @@ def index_post():
     if request.method == "POST":
         if request.form["action"] == "message":
             input_message = request.form["message"]
-            with open(app.config.get("MESSAGE_FILE"), "w", encoding="utf-8") as messagefile:
+            with open(
+                app.config.get("MESSAGE_FILE"), "w", encoding="utf-8"
+            ) as messagefile:
                 messagefile.write(str(input_message))
                 result = "Success: The autoreply message has been updated!"
 
         if request.form["action"] == "qmail":
+            # define whether to set a comment
+            if request.form["status"] == "on":
+                preis = "#"
+                preshould = ""
+            else:
+                preis = ""
+                preshould = "#"
+
+            with fileinput.FileInput(
+                f"{qmail_prefix}{app.config.get('MAIL_USER')}",
+                inplace=True,
+                backup=".bak",
+            ) as dotqmail:
+                for line in dotqmail:
+                    print(
+                        line.replace(
+                            f"{preis}{maildrop_line}", f"{preshould}{maildrop_line}"
+                        ),
+                        end="",
+                    )
+
             result = f"Success: the autoreply is now {request.form['status']}."
 
     try:

autoreply_editor/templates/index.html

@@ -9,7 +9,7 @@
   <h2>Toggle autoreply message</h2>
 
   <p>
-    Currently, autoreply: {{ qmail_status }}
+    The autoreply is <strong>{%if qmail_status%}active{%else%}inactive{%endif%}</strong>
   </p>
   <form method="POST">
     <input type="hidden" name="action" value="qmail" />