parse EMail

email_api/docker-compose.yml

@@ -3,7 +3,7 @@ services:
     container_name: email-api
     image: python:3.12-slim
     restart: unless-stopped
-    network_mode: host  # Nutzt das Host-Netzwerk
+    network_mode: host
     volumes:
       - ./email_api:/app
     working_dir: /app

email_api/email_api/app.py

@@ -6,6 +6,8 @@ import gzip
 import logging
 import os
 from dotenv import load_dotenv
+from email.parser import BytesParser
+from email.policy import default
 
 # Python-Version prüfen
 if sys.version_info < (3, 12):
@@ -19,7 +21,7 @@ logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
 # Konfiguration
-SMTP_HOST = "localhost"  # Verweist auf Host-Port 25
+SMTP_HOST = "localhost"  # Host-Netzwerkmodus
 SMTP_PORT = 25  # Fest auf Port 25 ohne TLS
 API_TOKEN = os.environ.get('API_TOKEN')
 if not API_TOKEN:
@@ -44,14 +46,25 @@ def process_email(domain):
     logger.info(f"[{request_id}] Processing email for domain: {domain}")
 
     try:
+        # Entkomprimieren, falls komprimiert
         if compressed:
             email_bytes = base64.b64decode(email_content)
-            email_content = gzip.decompress(email_bytes).decode('utf-8')
+            email_content = gzip.decompress(email_bytes)
         else:
-            email_content = base64.b64decode(email_content).decode('utf-8')
+            email_content = base64.b64decode(email_content)
 
+        # E-Mail-Header parsen
+        email_msg = BytesParser(policy=default).parsebytes(email_content)
+        from_addr = email_msg['From'] or 'lambda@andreasknuth.de'  # Fallback
+        to_addr = email_msg['To']
+        if not to_addr:
+            raise ValueError("Kein Empfänger (To) in der E-Mail gefunden")
+
+        logger.info(f"[{request_id}] From: {from_addr}, To: {to_addr}")
+
+        # An Postfix weiterleiten
         with smtplib.SMTP(SMTP_HOST, SMTP_PORT) as smtp:
-            smtp.sendmail('lambda@andreasknuth.de', f'inbox@{domain}', email_content)
+            smtp.sendmail(from_addr, to_addr, email_content)
         logger.info(f"[{request_id}] Email forwarded to Postfix for {domain}")
 
         return jsonify({'message': 'Email processed', 'request_id': request_id}), 200