Add initial script and email template

email.txt

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+Hallo {name},
+
+Wir haben dir ein Nutzerkonto für die neue Allmende Cloud angelegt. Die Zugangsdaten lauten:
+
+Nutzername: {username}
+Passwort:   {password}
+
+Du kannst dich damit unter https://cloud.allmende-gufi.de einloggen. Bitte ändere beim ersten Einloggen dein Passwort.
+
+Viele Grüße
+
+AG IT

main.py

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+import argparse
+import secrets
+import smtplib
+import string
+import subprocess
+from email.mime.multipart import MIMEMultipart
+from email.mime.text import MIMEText
+
+
+def generate_password(length: int) -> str:
+    alphabet = string.ascii_letters + string.digits
+    password = "".join(secrets.choice(alphabet) for i in range(length))
+    return password
+
+
+def send_email(
+    sender_email,
+    receiver_email,
+    subject,
+    message,
+    smtp_username,
+    smtp_password,
+):
+    # Create a multipart message
+    msg = MIMEMultipart()
+    msg["From"] = sender_email
+    msg["To"] = receiver_email
+    msg["Subject"] = subject
+
+    # Add body to the email
+    msg.attach(MIMEText(message, "plain"))
+
+    try:
+        # Create a secure SSL/TLS connection to the SMTP server
+        server = smtplib.SMTP("localhost", 25)
+        server.ehlo()
+        server.starttls()
+        server.ehlo()
+
+        # Login to the SMTP server
+        server.login(smtp_username, smtp_password)
+
+        # Send the email
+        server.sendmail(sender_email, receiver_email, msg.as_string())
+
+        # Close the SMTP connection
+        server.quit()
+
+        print("Email sent successfully!")
+    except Exception as e:
+        print("Failed to send email. Error:", str(e))
+
+
+def create_user(
+    name: str,
+    email: str,
+    mail_text: str,
+    mail_user: str,
+    mail_password: str,
+    dry_run: bool = False,
+):
+    username = name.split()[0].lower() + "." + name.split()[1].lower()[0]
+    password = generate_password(20)
+
+    cmd = [
+        "yunohost",
+        "user",
+        "create",
+        username,
+        "--password",
+        password,
+    ]
+    if dry_run:
+        print(" ".join(cmd))
+    else:
+        result = subprocess.run(cmd)
+        result.check_returncode()
+
+    cmd = [
+        "yunohost",
+        "user",
+        "update",
+        username,
+        "--add-mailforward",
+        email,
+    ]
+    if dry_run:
+        print(" ".join(cmd))
+    else:
+        result = subprocess.run(cmd)
+        result.check_returncode()
+
+    mail_text = mail_text.replace("{name}", name)
+    mail_text = mail_text.replace("{username}", username)
+    mail_text = mail_text.replace("{password}", password)
+
+    if dry_run:
+        print(mail_text)
+    else:
+        send_email(
+            f"{mail_user}@cloud.allmende-gufi.de",
+            email,
+            "Dein Zugang zur neuen Allmende Cloud",
+            mail_text,
+            mail_user,
+            mail_password,
+        )
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser(
+        description="Creates Yunohost user from a csv file and sends them an email with the password",
+    )
+    parser.add_argument("filename", help="Input file name")
+    parser.add_argument(
+        "mail_user", help="This user will be used to send the confirmation mail"
+    )
+    parser.add_argument(
+        "mail_password", help="This password will be used to send the confirmation mail"
+    )
+    parser.add_argument("--dry-run", action="store_true")
+    args = parser.parse_args()
+
+    with open(args.filename, "r") as f:
+        data = f.readlines()
+
+    with open("./email.txt", "r") as f:
+        email_text = f.read()
+
+    for line in data:
+        create_user(
+            *line.strip().split(","),
+            mail_text=email_text,
+            mail_user=args.mail_user,
+            mail_password=args.mail_password,
+            dry_run=args.dry_run,
+        )