fix lint

CHANGELOG.md

@@ -2,6 +2,9 @@
 
 ## untagged
 
+- replace crypt with passlib, as crypt will be deprecated in Python 3.13
+  ([#319](https://github.com/deltachat/chatmail/pull/319))
+
 - Reject DKIM signatures that do not cover the whole message body.
   ([#321](https://github.com/deltachat/chatmail/pull/321))
 

chatmaild/pyproject.toml

@@ -12,6 +12,7 @@ dependencies = [
   "deltachat-rpc-client",
   "filelock",
   "requests",
+  "passlib",
 ]
 
 [tool.setuptools]
@@ -26,7 +27,6 @@ chatmail-metadata = "chatmaild.metadata:main"
 filtermail = "chatmaild.filtermail:main"
 echobot = "chatmaild.echo:main"
 chatmail-metrics = "chatmaild.metrics:main"
-rm_accounts = "chatmaild.rm_accounts:main"
 
 [project.entry-points.pytest11]
 "chatmaild.testplugin" = "chatmaild.tests.plugin"

chatmaild/src/chatmaild/config.py

@@ -13,7 +13,6 @@ class Config:
         self.max_user_send_per_minute = int(params["max_user_send_per_minute"])
         self.max_mailbox_size = params["max_mailbox_size"]
         self.delete_mails_after = params["delete_mails_after"]
-        self.delete_accounts_after = int(params["delete_accounts_after"])
         self.username_min_length = int(params["username_min_length"])
         self.username_max_length = int(params["username_max_length"])
         self.password_min_length = int(params["password_min_length"])

chatmaild/src/chatmaild/doveauth.py

@@ -1,4 +1,3 @@
-import crypt
 import json
 import logging
 import os
@@ -11,6 +10,8 @@ from socketserver import (
     UnixStreamServer,
 )
 
+import passlib.hash
+
 from .config import Config, read_config
 from .database import Database
 
@@ -23,8 +24,9 @@ class UnknownCommand(ValueError):
 
 def encrypt_password(password: str):
     # https://doc.dovecot.org/configuration_manual/authentication/password_schemes/
-    passhash = crypt.crypt(password, crypt.METHOD_SHA512)
-    return "{SHA512-CRYPT}" + passhash
+    pw = passlib.hash.sha512_crypt.hash(password).split("$")
+
+    return "{SHA512-CRYPT}$" + pw[1] + "$" + pw[3] + "$" + pw[4]
 
 
 def is_allowed_to_create(config: Config, user, cleartext_password) -> bool:
@@ -106,8 +108,7 @@ def lookup_passdb(db, config: Config, user, cleartext_password):
         if userdata:
             # Update last login time.
             conn.execute(
-                "UPDATE users SET last_login=? WHERE addr=?",
-                (int(time.time() // 86400), user),
+                "UPDATE users SET last_login=? WHERE addr=?", (int(time.time()), user)
             )
 
             userdata["home"] = f"/home/vmail/mail/{config.mail_domain}/{user}"

chatmaild/src/chatmaild/ini/chatmail.ini.f

@@ -20,9 +20,6 @@ max_mailbox_size = 100M
 # days after which mails are unconditionally deleted
 delete_mails_after = 20
 
-# days after which accounts are deleted if nobody logged in
-delete_accounts_after = 25
-
 # minimum length a username must have
 username_min_length = 9
 

chatmaild/src/chatmaild/rm_accounts.py

@@ -1,37 +0,0 @@
-import sys
-import time
-import shutil
-from pathlib import Path
-
-from .config import read_config
-from .database import Database
-
-
-def remove_users(db: Database, cutoff_date: int):
-    with db.write_transaction() as conn:
-        delete_query = "DELETE FROM users WHERE last_login <?"
-        conn.execute(delete_query, (cutoff_date))
-
-
-def remove_user_data(db: Database, cutoff_date: int, vmail_basedir: Path):
-    """Collects all users where last_login < cutoff_date and deletes corresponding directories."""
-
-    with db.write_transaction() as conn:
-        select_query = "SELECT user FROM users WHERE last_login <?"
-        cursor = conn.execute(select_query, (cutoff_date,))
-        usernames = cursor.fetchall()
-
-        for username in usernames:
-            user_dir = vmail_basedir / username[0]
-            if user_dir.exists() and user_dir.is_dir():
-                shutil.rmtree(user_dir, ignore_errors=True)
-                print(f"Deleted directory: {user_dir}")
-
-
-def main():
-    db = Database(sys.argv[2])
-    config = read_config(sys.argv[3])
-    today = int(time.time() // 86400)
-
-    cutoff_date = today - config.delete_accounts_after
-    remove_user_data(db, cutoff_date)