commit b648c0f6b9533c625e12eb2edf48741bf21dac57
Author: Florian Kaiser <florian.kaiser@t-systems.com>
Date:   Mon Apr 14 13:47:04 2025 +0200

    Init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e27cb32
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+attachments/*
+config.json
+.DS_Store
+email_log.log
\ No newline at end of file
diff --git a/config.example.json b/config.example.json
new file mode 100644
index 0000000..60c18ea
--- /dev/null
+++ b/config.example.json
@@ -0,0 +1,13 @@
+{
+  "accounts": [
+    {
+      "server": "",
+      "port": "",
+      "user": "",
+      "password": "",
+      "remote_folders": [],
+      "local_folder": "",
+      "since": ""
+    }
+  ]
+}
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..ca9d006
--- /dev/null
+++ b/main.py
@@ -0,0 +1,112 @@
+from datetime import datetime
+import imaplib
+import email
+import os
+import logging
+import re
+from email.header import decode_header
+import json
+
+def sanitize_filename(filename):
+    # Entfernt ungültige Zeichen aus dem Dateinamen
+    filename = re.sub(r'[^\w\s.-]', '', filename)  # Entfernt alle Zeichen außer Buchstaben, Zahlen, Leerzeichen, Punkt, Bindestrich und Unterstrich
+    filename = filename.replace(' ', '_')  # Ersetzt Leerzeichen durch Unterstriche
+    
+    return filename
+
+def decode_email_header(header):
+    decoded_header = ''
+    for part in decode_header(header):
+        if part[1] is not None:
+            decoded_header += part[0].decode(part[1])
+        else:
+            decoded_header += part[0]
+    return decoded_header
+
+def process_emails(server, port, user, password, remote_folder, local_folder, since):
+    # Logging einrichten
+    logging.basicConfig(filename='email_log.log', level=logging.INFO)
+
+    # Ordner für Anhänge erstellen, falls er nicht existiert
+    if not os.path.exists(local_folder):
+        os.makedirs(local_folder)
+
+    # IMAP-Verbindung herstellen
+    mail = imaplib.IMAP4_SSL(server, port)
+    mail.login(user, password)
+
+    # Remote-Ordner auswählen
+    mail.select(remote_folder)
+
+    # Suchkriterien festlegen (z.B. alle E-Mails)
+    _, messages = mail.search(None, f'(SINCE "{since}")')
+
+    # Nachrichten-IDs extrahieren
+    msg_ids = messages[0].split()
+    print("IDs:", msg_ids)
+
+    # Nachrichten verarbeiten
+    for msg_id in msg_ids:
+        # Nachricht abrufen
+        _, msg = mail.fetch(msg_id, '(RFC822)')
+        raw_message = msg[0][1]
+
+        # Nachricht parsen
+        message = email.message_from_bytes(raw_message)
+        print("Betreff:", message['Subject'])
+        print("Absender:", message['From'])
+        print("Empfänger:", message['Date'])
+
+        # Anhänge speichern
+        for part in message.walk():
+            if part.get_content_maintype() == 'multipart':
+                continue
+            if part.get('Content-Disposition') is None:
+                continue
+            filename = part.get_filename()
+            if filename:
+                # Dateinamen dekodieren, falls er kodiert ist
+                if isinstance(filename, bytes):
+                    filename = filename.decode('utf-8', errors='ignore')
+                else:
+                    filename = decode_email_header(filename)
+                
+                # Dateinamen bereinigen und mit der Nachrichten-ID erweitern
+                sanitized_filename = sanitize_filename(filename)
+                # Stelle sicher, dass die Dateiendung korrekt ist
+                if '.' not in sanitized_filename:
+                    if part.get_content_type() == 'application/pdf':
+                        sanitized_filename += '.pdf'
+                    elif part.get_content_type() == 'image/jpeg':
+                        sanitized_filename += '.jpg'
+                    elif part.get_content_type() == 'image/png':
+                        sanitized_filename += '.png'
+                    # Fügen Sie weitere Dateitypen hinzu, falls erforderlich
+                attachment_filename = f"{msg_id.decode()}_{sanitized_filename}"
+                filepath = os.path.join(local_folder, attachment_filename)
+                
+                try:
+                    with open(filepath, 'wb') as f:
+                        f.write(part.get_payload(decode=True))
+                    logging.info(f'Anhang gespeichert: {attachment_filename}')
+                except Exception as e:
+                    logging.error(f"Fehler beim Speichern des Anhangs {attachment_filename}: {e}")
+                    
+    # Verbindung schließen
+    mail.close()
+    mail.logout()
+
+if __name__ == "__main__":
+    with open('config.json', 'r') as f:
+        config = json.load(f)
+    
+        for key, item in enumerate(config['accounts']):
+            print(key, item)
+            for folder in item['remote_folders']:
+                print(item['user'], folder, item['since'])
+                process_emails(item['server'], item['port'], item['user'], item['password'], folder, item['local_folder'], item['since'])
+                
+            config['accounts'][key]["since"] = datetime.now().strftime("%d-%b-%Y")
+
+            with open('config.json', 'w') as f:
+                json.dump(config, f)