email-unsubscribe-links-scr.../app.py

138 lines
4.5 KiB
Python

import imaplib
import email
import re
import os
from flask import Flask, render_template, request, redirect, url_for
from dotenv import load_dotenv
from bs4 import BeautifulSoup
app = Flask(__name__)
load_dotenv() # Laden der Umgebungsvariablen aus der .env-Datei
# Email-Server-Konfiguration
EMAIL_USERNAME = os.environ.get("EMAIL_USERNAME")
EMAIL_PASSWORD = os.environ.get("EMAIL_PASSWORD")
EMAIL_SERVER = os.environ.get("EMAIL_SERVER")
template_dir = os.path.abspath(os.path.dirname(__file__))
app = Flask(__name__, template_folder=template_dir)
link_pattern = r"<a href=\"(.*?)\">(.*?)</a>"
unsubscribe_pattern = r"(?i)\babbestellen\b|\bunsubscribe\b|\bdeabonnieren\b|\babbestellung\b|\babmelden\b"
def get_text_from_email(email_message):
text = ""
for part in email_message.walk():
content_type = part.get_content_type()
content_disposition = str(part.get("Content-Disposition"))
if "text" in content_type and "attachment" not in content_disposition:
body = part.get_payload(decode=True)
if body:
text += body.decode(errors="ignore")
return text
def find_unsubscribe_links(text, html_links):
soup = BeautifulSoup(text, 'html.parser')
unsubscribe_links = []
for link in soup.find_all('a', href=True):
if re.search(unsubscribe_pattern, str(link)) and str(link['href']) not in html_links:
print(link['href'])
test1=str(link['href'])
print(test1)
if test1 not in unsubscribe_links:
print(test1)
unsubscribe_links.append(test1)
# Zusätzlich nach einfachen URLs suchen und auf das Unsubscribe-Pattern prüfen
simple_urls = re.findall(r"(https?://\S+)", text)
for url in simple_urls:
if re.search(unsubscribe_pattern, url) and url not in html_links:
if url not in unsubscribe_links:
unsubscribe_links.append(url)
return unsubscribe_links
def get_subject_from_email(email_message):
subject = email_message.get("Subject")
return subject
def move_emails_to_trash(email_ids):
username = EMAIL_USERNAME
password = EMAIL_PASSWORD
server = EMAIL_SERVER
mail = imaplib.IMAP4_SSL(server)
mail.login(username, password)
mail.select("inbox")
for email_id in email_ids:
# Verschiebe die E-Mail in den Papierkorb (Trash)
mail.copy(email_id, "Trash")
# Setze die \Deleted-Flagge, um die E-Mail später zu löschen (für Mailcow)
mail.store(email_id, "+FLAGS", "\\Deleted")
# Speichere die Änderungen auf dem IMAP-Server
mail.expunge()
mail.logout()
@app.route("/", methods=["GET", "POST"])
def index():
return render_template("index.html", email_address=EMAIL_USERNAME)
@app.route("/result")
def result():
username = EMAIL_USERNAME
password = EMAIL_PASSWORD
server = EMAIL_SERVER
mail = imaplib.IMAP4_SSL(server)
mail.login(username, password)
mail.select("inbox")
_, messages = mail.search(None, "ALL")
links_data = {}
html_links = set()
for message_num in messages[0].split():
_, msg_data = mail.fetch(message_num, "(RFC822)")
msg = email.message_from_bytes(msg_data[0][1])
body = get_text_from_email(msg)
subject = get_subject_from_email(msg)
if body:
unsubscribe_links_in_html = find_unsubscribe_links(body, html_links)
html_links.update(unsubscribe_links_in_html)
unsubscribe_links_in_text = find_unsubscribe_links(body, html_links)
all_unsubscribe_links = list(set(unsubscribe_links_in_html + unsubscribe_links_in_text))
if all_unsubscribe_links:
links_data[message_num.decode()] = {
"subject": subject,
"links": all_unsubscribe_links
}
mail.logout()
return render_template("result.html", links_data=links_data)
@app.route("/move-to-trash", methods=["POST"])
def move_to_trash():
if request.method == "POST":
email_id = request.form.get("email_id")
if email_id:
move_emails_to_trash([email_id])
return redirect(url_for("result"))
@app.route("/move-all-to-trash", methods=["POST"])
def move_all_to_trash():
if request.method == "POST":
email_ids = request.form.getlist("email_id")
if email_ids:
move_emails_to_trash(email_ids)
return redirect(url_for("index"))
if __name__ == "__main__":
app.run(host="0.0.0.0", port=5000, debug=True)