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@@ -0,0 +1,116 @@
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+#! /usr/bin/env python3
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+"""
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+This script checks for available updates on Void Linux using xbps and notifies
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+the configured administrator account about them. It currently requires
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+python 3.x and no additional packages and is supposed to be run with cron or
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+another scheduled execution mechanism.
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+"""
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+
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+import subprocess
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+import smtplib
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+import socket
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+import re
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+
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+from email.mime.multipart import MIMEMultipart
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+from email.mime.text import MIMEText
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+
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+
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+# Email server to be used to send the notification
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+ADMIN_EMAIL = "root"
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+# Mail server to be used to send the notification
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+MAIL_SERVER = "localhost"
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+# Port to use on the mail server
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+MAIL_SERVER_PORT = 25
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+# User name to log in to the mail server
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+MAIL_SERVER_USER = ""
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+# Password to log in to the mail server
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+MAIL_SERVER_PASSWORD = ""
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+
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+AVAILABLE_UPDATES = []
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+
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+DEVNULL = open("/dev/null", "w")
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+
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+try:
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+ XBPS_INSTALL_RESULT = subprocess.check_output(["xbps-install", "-Sun"],
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+ stderr=DEVNULL)
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+except subprocess.CalledProcessError:
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+ pass
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+else:
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+ XBPS_INSTALL_RESULT = XBPS_INSTALL_RESULT.decode("utf-8").split("\n")
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+ for line in XBPS_INSTALL_RESULT:
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+ if "update" in line:
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+ try:
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+ package = line.split(" ")[0]
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+ package_regex = "^([A-Za-z0-9-]*)-([0-9].*_[0-9])$"
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+ match_object = re.match(package_regex, package)
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+ package_name = match_object.groups()[0]
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+ new_package_version = match_object.groups()[1]
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+ except IndexError:
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+ continue
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+ else:
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+ try:
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+ xbps_query_result = subprocess.check_output(
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+ ["xbps-query", "--show", package_name], stderr=DEVNULL)
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+ except subprocess.CalledProcessError:
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+ pass
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+ else:
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+ xbps_query_result = xbps_query_result.decode(
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+ "utf-8").split("\n")
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+ for line in xbps_query_result:
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+ if "pkgver" in line:
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+ installed_package = line.split(
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+ ":")[1].strip()
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+ match = re.match(package_regex,
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+ installed_package)
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+ installed_package_version = match.groups()[1]
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+ package_update = {
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+ "name": package_name,
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+ "new_version": new_package_version,
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+ "old_version": installed_package_version,
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+ }
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+ AVAILABLE_UPDATES.append(package_update)
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+ break
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+if AVAILABLE_UPDATES:
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+ HOSTNAME = socket.getfqdn()
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+ MSG = MIMEMultipart()
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+ MAIL_TEXT = "The following package updates are available on host %s:\n\n"\
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+ % HOSTNAME
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+ MSG["Subject"] = "%s updates available on host %s"\
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+ % (len(AVAILABLE_UPDATES), HOSTNAME)
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+ MSG["From"] = "voixicron@%s" % HOSTNAME
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+ MSG["To"] = ADMIN_EMAIL
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+ for update in AVAILABLE_UPDATES:
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+ MAIL_TEXT += "%s (%s -> %s)\n"\
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+ % (update["name"],
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+ update["old_version"],
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+ update["new_version"])
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+ MSG_TEXT = MIMEText(MAIL_TEXT.encode("utf-8"), _charset="utf-8")
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+ MSG.attach(MSG_TEXT)
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+ SERVER_CONNECTION = smtplib.SMTP(MAIL_SERVER, MAIL_SERVER_PORT)
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+ try:
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+ SERVER_CONNECTION.connect()
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+ except (smtplib.SMTPConnectError, smtplib.SMTPServerDisconnected,
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+ socket.error):
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+ pass
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+ else:
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+ try:
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+ SERVER_CONNECTION.starttls()
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+ except smtplib.SMTPException:
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+ pass
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+ if MAIL_SERVER_USER:
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+ try:
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+ SERVER_CONNECTION.login(MAIL_SERVER_USER, MAIL_SERVER_PASSWORD)
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+ except smtplib.SMTPAuthenticationError:
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+ pass
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+ except smtplib.SMTPException:
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+ pass
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+ try:
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+ SERVER_CONNECTION.sendmail("voixicron@%s" % HOSTNAME, ADMIN_EMAIL,
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+ MSG.as_string())
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+ except smtplib.SMTPRecipientsRefused:
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+ pass
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+ except smtplib.SMTPSenderRefused:
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+ pass
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+ else:
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+ SERVER_CONNECTION.quit()
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+DEVNULL.close()
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