From b7ba9d6b516031aced2efb310a032d30f4b54bb9 Mon Sep 17 00:00:00 2001
From: Antoine Nguyen <tonio@ngyn.org>
Date: Tue, 24 Jun 2025 18:27:07 +0200
Subject: [PATCH] Replaced calls to pkg_resource.

---
 modoboa/__init__.py             | 6 +++---
 modoboa/core/utils.py           | 6 ++----
 modoboa/lib/api_client.py       | 8 +++-----
 modoboa/lib/email_utils.py      | 7 ++-----
 modoboa/webmail/lib/sendmail.py | 9 +++------
 pyproject.toml                  | 1 +
 6 files changed, 14 insertions(+), 23 deletions(-)

diff --git a/modoboa/__init__.py b/modoboa/__init__.py
index 0ec95caec..cc7f057f2 100644
--- a/modoboa/__init__.py
+++ b/modoboa/__init__.py
@@ -1,10 +1,10 @@
 """Modoboa - Mail hosting made simple."""
 
-from pkg_resources import DistributionNotFound, get_distribution
+from importlib.metadata import version, PackageNotFoundError
 
 try:
-    __version__ = get_distribution(__name__).version
-except DistributionNotFound:
+    __version__ = version(__name__)
+except PackageNotFoundError:
     # package is not installed
     pass
 
diff --git a/modoboa/core/utils.py b/modoboa/core/utils.py
index 32615d79a..003f62695 100644
--- a/modoboa/core/utils.py
+++ b/modoboa/core/utils.py
@@ -2,7 +2,7 @@
 
 import environ
 import os
-from pkg_resources import parse_version
+from packaging.version import parse
 from typing import Optional
 
 from cryptography.hazmat.primitives import serialization
@@ -51,9 +51,7 @@ def check_for_updates():
             if api_extension["name"] != pkgname:
                 continue
             extension["last_version"] = api_extension["version"]
-            if parse_version(api_extension["version"]) > parse_version(
-                extension["version"]
-            ):
+            if parse(api_extension["version"]) > parse(extension["version"]):
                 extension["update"] = True
                 extension["changelog_url"] = api_extension["url"]
                 update_avail = True
diff --git a/modoboa/lib/api_client.py b/modoboa/lib/api_client.py
index 0d1a11033..c7ed4f9b9 100644
--- a/modoboa/lib/api_client.py
+++ b/modoboa/lib/api_client.py
@@ -1,9 +1,9 @@
 """A client for Modoboa's public API."""
 
+from importlib.metadata import version, PackageNotFoundError
 import logging
 import os
 
-import pkg_resources
 import requests
 from requests.exceptions import RequestException
 
@@ -43,10 +43,8 @@ class ModoAPIClient:
         """Return the version installed locally."""
         if self._local_core_version is None:
             try:
-                self._local_core_version = pkg_resources.get_distribution(
-                    "modoboa"
-                ).version
-            except pkg_resources.DistributionNotFound:
+                self._local_core_version = version("modoboa")
+            except PackageNotFoundError:
                 self._local_core_version = "unknown"
         return self._local_core_version
 
diff --git a/modoboa/lib/email_utils.py b/modoboa/lib/email_utils.py
index a7d56f2cf..027138f30 100644
--- a/modoboa/lib/email_utils.py
+++ b/modoboa/lib/email_utils.py
@@ -5,6 +5,7 @@ import time
 from email.header import Header
 from email.mime.text import MIMEText
 from email.utils import formataddr, formatdate, getaddresses, make_msgid
+from importlib.metadata import version
 
 import chardet
 import lxml.html
@@ -379,15 +380,11 @@ def set_email_headers(msg, subject, sender, rcpt):
 
     Subject, From, To, Message-ID, User-Agent, Date
     """
-    import pkg_resources
-
     msg["Subject"] = Header(subject, "utf8")
     msg["From"] = sender
     msg["To"] = prepare_addresses(rcpt)
     msg["Message-ID"] = make_msgid()
-    msg["User-Agent"] = "Modoboa {}".format(
-        pkg_resources.get_distribution("modoboa").version
-    )
+    msg["User-Agent"] = "Modoboa {}".format(version("modoboa"))
     msg["Date"] = formatdate(time.time(), True)
 
 
diff --git a/modoboa/webmail/lib/sendmail.py b/modoboa/webmail/lib/sendmail.py
index bc178b38e..b4af4a517 100644
--- a/modoboa/webmail/lib/sendmail.py
+++ b/modoboa/webmail/lib/sendmail.py
@@ -1,7 +1,8 @@
 from email.header import Header
 from email.mime.image import MIMEImage
+from importlib.metadata import version
 import os
-import pkg_resources
+
 import smtplib
 from urllib.parse import unquote, urlparse
 
@@ -90,11 +91,7 @@ def format_sender_address(user: core_models.User, address: str) -> str:
 
 
 def create_message(user: core_models.User, attributes: dict, attachments: list):
-    headers = {
-        "User-Agent": "Modoboa {}".format(
-            pkg_resources.get_distribution("modoboa").version
-        )
-    }
+    headers = {"User-Agent": "Modoboa {}".format(version("modoboa"))}
     origmsgid = attributes.get("in_reply_to")
     if origmsgid:
         headers.update({"References": origmsgid, "In-Reply-To": origmsgid})
diff --git a/pyproject.toml b/pyproject.toml
index 938376edb..a56d2f0da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,6 +58,7 @@ dependencies = [
 	"chardet",
 	"ovh",
 	"oath",
+        "packaging",
 	"redis>=4.2.0rc1",
 	"rrdtool-bindings>=0.2.0",
 	"qrcode",