.gitignore

@@ -1,154 +0,0 @@
-# ---> Python
-# Byte-compiled / optimized / DLL files
-__pycache__/
-*.py[cod]
-*$py.class
-
-# C extensions
-*.so
-
-# Distribution / packaging
-.Python
-build/
-develop-eggs/
-dist/
-downloads/
-eggs/
-.eggs/
-lib/
-lib64/
-parts/
-sdist/
-var/
-wheels/
-share/python-wheels/
-*.egg-info/
-.installed.cfg
-*.egg
-MANIFEST
-
-# PyInstaller
-#  Usually these files are written by a python script from a template
-#  before PyInstaller builds the exe, so as to inject date/other infos into it.
-*.manifest
-*.spec
-
-# Installer logs
-pip-log.txt
-pip-delete-this-directory.txt
-
-# Unit test / coverage reports
-htmlcov/
-.tox/
-.nox/
-.coverage
-.coverage.*
-.cache
-nosetests.xml
-coverage.xml
-*.cover
-*.py,cover
-.hypothesis/
-.pytest_cache/
-cover/
-
-# Translations
-*.mo
-*.pot
-
-# Django stuff:
-*.log
-local_settings.py
-db.sqlite3
-db.sqlite3-journal
-
-# Flask stuff:
-instance/
-.webassets-cache
-
-# Scrapy stuff:
-.scrapy
-
-# Sphinx documentation
-docs/_build/
-
-# PyBuilder
-.pybuilder/
-target/
-
-# Jupyter Notebook
-.ipynb_checkpoints
-
-# IPython
-profile_default/
-ipython_config.py
-
-# pyenv
-#   For a library or package, you might want to ignore these files since the code is
-#   intended to run in multiple environments; otherwise, check them in:
-# .python-version
-
-# pipenv
-#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
-#   However, in case of collaboration, if having platform-specific dependencies or dependencies
-#   having no cross-platform support, pipenv may install dependencies that don't work, or not
-#   install all needed dependencies.
-#Pipfile.lock
-
-# poetry
-#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
-#   This is especially recommended for binary packages to ensure reproducibility, and is more
-#   commonly ignored for libraries.
-#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
-#poetry.lock
-
-# PEP 582; used by e.g. github.com/David-OConnor/pyflow
-__pypackages__/
-
-# Celery stuff
-celerybeat-schedule
-celerybeat.pid
-
-# SageMath parsed files
-*.sage.py
-
-# Environments
-.env
-.venv
-env/
-venv/
-ENV/
-env.bak/
-venv.bak/
-
-# Spyder project settings
-.spyderproject
-.spyproject
-
-# Rope project settings
-.ropeproject
-
-# mkdocs documentation
-/site
-
-# mypy
-.mypy_cache/
-.dmypy.json
-dmypy.json
-
-# Pyre type checker
-.pyre/
-
-# pytype static type analyzer
-.pytype/
-
-# Cython debug symbols
-cython_debug/
-
-# PyCharm
-#  JetBrains specific template is maintainted in a separate JetBrains.gitignore that can
-#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
-#  and can be added to the global gitignore or merged into this file.  For a more nuclear
-#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
-

README.md

@@ -1,2 +0,0 @@
-# library-reminder
-

main.py

@@ -0,0 +1,118 @@
+import tempfile
+
+from selenium import webdriver
+from selenium.webdriver.chrome.options import Options
+from selenium.webdriver.common.by import By
+from selenium.webdriver.support.ui import WebDriverWait
+from selenium.webdriver.support import expected_conditions as EC
+from datetime import datetime, timedelta
+from email.mime.text import MIMEText
+from email.mime.multipart import MIMEMultipart
+import smtplib
+import time
+from dotenv import load_dotenv
+import os
+import json
+
+
+# Load environment variables from .env file
+load_dotenv()
+
+# Email Configuration from environment variables
+SMTP_SERVER = os.getenv("SMTP_SERVER")
+SMTP_PORT = int(os.getenv("SMTP_PORT"))
+EMAIL_ADDRESS = os.getenv("EMAIL_ADDRESS")
+EMAIL_PASSWORD = os.getenv("EMAIL_PASSWORD")
+
+DAYS_BEFORE = int(os.getenv("DAYS_BEFORE"))
+
+def check_date(due_date, recipient_email):
+    today = datetime.now()
+    if today <= due_date <= today + timedelta(days=DAYS_BEFORE):
+        print(f"Reminder: Book is due on {due_date}")
+
+        # Send an email reminder
+        subject = "Stadtbibliothek Radebeul - Buch bald fällig"
+        body = f"Ein Buch muss am {due_date.strftime('%d.%m.%Y')} zurückgegeben werden. Bitte zurückgeben um Gebühren zu vermeiden."
+
+        # Set up email
+        msg = MIMEMultipart()
+        msg['From'] = EMAIL_ADDRESS
+        msg['To'] = recipient_email
+        msg['Subject'] = subject
+        msg.attach(MIMEText(body, 'plain'))
+
+        # Connect to SMTP server and send email
+        with smtplib.SMTP(SMTP_SERVER, SMTP_PORT) as server:
+            server.starttls()  # Secure the connection
+            server.login(EMAIL_ADDRESS, EMAIL_PASSWORD)
+            server.send_message(msg)
+        print(f"Email sent to {recipient_email}")
+
+def check_books(user, pw, recipient_email):
+    options = Options()
+    options.add_argument("--headless")  # Run Chrome in headless mode
+    options.add_argument("--disable-gpu")  # Disable GPU acceleration
+    options.add_argument("--no-sandbox")  # Required for some environments
+    options.add_argument("--incognito")
+    # Use a unique temporary user-data-dir
+    temp_dir = tempfile.mkdtemp()
+    options.add_argument(f"--user-data-dir={temp_dir}")
+
+    driver = webdriver.Chrome(options=options)  # Use ChromeDriver
+
+    try:
+        # Navigate to the login page
+        driver.get("https://webserver.sv-radebeul.de/Mediensuche-Konto/Mein-Konto")
+
+        # Wait for the page to load
+        wait = WebDriverWait(driver, 10)
+
+        # Locate username and password fields
+        username_field = driver.find_element(By.ID, "dnn_ctr355_Login_Login_COP_txtUsername")
+        password_field = driver.find_element(By.ID, "dnn_ctr355_Login_Login_COP_txtPassword")
+
+        # Enter login credentials
+        username_field.send_keys(user)
+        password_field.send_keys(pw)
+
+        # Click login button
+        login_button = driver.find_element(By.ID, "dnn_ctr355_Login_Login_COP_cmdLogin")
+        login_button.click()
+
+        # Wait for login to complete
+        time.sleep(5)
+
+        # Check if login was successful
+        if "Mein Konto" in driver.page_source:
+            print(f"Login successful for {user}!")
+            # Locate the table containing the rows
+            table = driver.find_element(By.ID, "dnn_ctr423_MainView_tpnlLoans_ucLoansView_grdViewLoans")
+            table_rows = table.find_elements(By.XPATH, "./tbody/tr")
+
+            # Loop through each row and extract the "Aktuelle Frist" date
+            for row in table_rows:
+                try:
+                    # Locate the "Aktuelle Frist" column in the current row
+                    due_date = row.find_element(By.XPATH, ".//td[span[contains(text(), 'Aktuelle Frist:')]]/span[2]")
+                    print(f"Aktuelle Frist for {user}: {due_date.text}")
+                    check_date(datetime.strptime(due_date.text, "%d.%m.%Y"), recipient_email)
+                except Exception as e:
+                    print(f"Could not extract 'Aktuelle Frist' date for a row: {e}")
+        else:
+            print(f"Login failed for {user}. Please check the credentials or the page structure.")
+    finally:
+        # Close the browser
+        driver.quit()
+
+if __name__ == '__main__':
+    # Load user credentials from JSON file
+    with open("./users.json", "r") as file:
+        users = json.load(file)
+
+    # Iterate over all users
+    for user_data in users:
+        username = user_data["username"]
+        password = user_data["password"]
+        recipient_email = user_data["recipient_email"]
+        check_books(username, password, recipient_email)

readme.md

@@ -0,0 +1,37 @@
+# Lend Expire Notification
+...for Stadtbibliothek Radebeul
+
+## About
+This script checks the current lends of the user. If a lend is about to expire it sends an e-mail notification. 
+
+To get the Information the script simulates a user. It does a login to the OPAC System of the Stadtbibliothek Radebeul and extracts the information from the website. 
+To archive this, it utiles using selenium.
+
+Each run will trigger one e-mail, so trigger or run in the desired frequency. 
+
+## Getting Stared
+
+1. Check out the repo
+2. Add username, password and email address in the users.json file
+3. create a ".env" file or past the following configurations varabiles into the environment varabiles
+
+## Enviornment Varables
+
+```
+SMTP_SERVER=mail.server.com
+SMTP_PORT=587
+EMAIL_ADDRESS=sender-mail
+EMAIL_PASSWORD=password
+DAYS_BEFORE=3
+```
+
+## users.json
+```
+[
+    {
+        "username": "username",
+        "password": "password",
+        "recipient_email": "notification_mail"
+    }
+]
+```

requirements.txt

@@ -0,0 +1,2 @@
+python-dotenv==1.0.1
+selenium==4.27.1

users.json

@@ -0,0 +1,7 @@
+[
+    {
+        "username": "USER",
+        "password": "PWD",
+        "recipient_email": "info@familie-frank.email"
+    }
+]