Initial commit

cert_check.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+script_dir="$(cd "$(dirname "$0")" && pwd)"
+
+cert_valid_for=$(
+    certbot certificates 2>/dev/null |
+        grep -A 4 "fm.ines.org.pl" |
+        grep "Expiry Date" |
+        awk -F'[()]' '{print $2}' |
+        awk '{print $2}'
+)
+
+cert_valid_for="${cert_valid_for//[^0-9]/}"
+cert_valid_for=$((10#${cert_valid_for:-0}))
+
+if (( cert_valid_for < 30 ))
+then
+    python3 "$script_dir/mail.py" --user "certificates@piga.pl" --password 'cgpM!tABM43_meJ' --to "it@piga.pl" --subject "Wygasa certyfikat dla serwera $(hostname)" --body "Certyfikat dla serwera $(hostname) jest ważny jeszcze $cert_valid_for dni."
+fi

mail.py

@@ -0,0 +1,49 @@
+import argparse
+import smtplib
+from email.message import EmailMessage
+
+
+SMTP_HOST = "mail.piga.pl"
+SMTP_PORT = 587
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Wysylka maila przez SMTP mail.piga.pl:587 z STARTTLS."
+    )
+    parser.add_argument("--user", required=True, help="Login SMTP, np. user@piga.pl")
+    parser.add_argument("--password", required=True, help="Haslo do konta SMTP")
+    parser.add_argument("--to", required=True, dest="recipient", help="Adres odbiorcy")
+    parser.add_argument("--subject", default="Test SMTP", help="Temat wiadomosci")
+    parser.add_argument(
+        "--body",
+        required=True,
+        help='Tresc wiadomosci, np. --body "To jest test".',
+    )
+    return parser.parse_args()
+
+
+def build_message(args: argparse.Namespace) -> EmailMessage:
+    message = EmailMessage()
+    message["From"] = args.user
+    message["To"] = args.recipient
+    message["Subject"] = args.subject
+    message.set_content(args.body)
+    return message
+
+
+def send_mail(args: argparse.Namespace) -> None:
+    message = build_message(args)
+
+    with smtplib.SMTP(SMTP_HOST, SMTP_PORT, timeout=30) as server:
+        server.ehlo()
+        server.starttls()
+        server.ehlo()
+        server.login(args.user, args.password)
+        server.send_message(message)
+
+
+if __name__ == "__main__":
+    arguments = parse_args()
+    send_mail(arguments)
+    print("Mail wyslany poprawnie.")