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add get_header_from_bounce()
This commit is contained in:
Son NK
parent
eb6647d62e
commit
17c7303fb5
2 changed files with 140 additions and 0 deletions
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@ -8,6 +8,7 @@ from email.mime.text import MIMEText
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from email.utils import make_msgid, formatdate, parseaddr
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from email.utils import make_msgid, formatdate, parseaddr
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from smtplib import SMTP
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from smtplib import SMTP
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from typing import Optional
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from typing import Optional
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import re
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import arrow
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import arrow
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import dkim
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import dkim
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@ -430,6 +431,22 @@ def get_orig_message_from_bounce(msg: Message) -> Message:
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return part
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return part
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def get_header_from_bounce(msg: Message, header: str) -> str:
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"""using regex to get header value from bounce message
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get_orig_message_from_bounce is better. This should be the last option
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"""
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msg_str = str(msg)
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exp = re.compile(f"{header}.*\n")
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r = re.search(exp, msg_str)
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if r:
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# substr should be something like 'HEADER: 1234'
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substr = msg_str[r.start() : r.end()].strip()
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parts = substr.split(":")
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return parts[1].strip()
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return None
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def get_orig_message_from_spamassassin_report(msg: Message) -> Message:
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def get_orig_message_from_spamassassin_report(msg: Message) -> Message:
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"""parse the original email from Spamassassin report"""
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"""parse the original email from Spamassassin report"""
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i = 0
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i = 0
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@ -12,6 +12,7 @@ from app.email_utils import (
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send_email_with_rate_control,
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send_email_with_rate_control,
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copy,
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copy,
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get_spam_from_header,
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get_spam_from_header,
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get_header_from_bounce,
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)
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)
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from app.extensions import db
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from app.extensions import db
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from app.models import User, CustomDomain
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from app.models import User, CustomDomain
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@ -160,3 +161,125 @@ def test_get_spam_from_header():
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max_score=5,
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max_score=5,
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)
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)
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assert is_spam
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assert is_spam
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def test_get_header_from_bounce():
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# this is an actual bounce report from iCloud anonymized
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msg_str = """Received: by mx1.simplelogin.co (Postfix)
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id 9988776655; Mon, 24 Aug 2020 06:20:07 +0000 (UTC)
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Date: Mon, 24 Aug 2020 06:20:07 +0000 (UTC)
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From: MAILER-DAEMON@bounce.simplelogin.io (Mail Delivery System)
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Subject: Undelivered Mail Returned to Sender
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To: reply+longstring@simplelogin.co
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Auto-Submitted: auto-replied
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MIME-Version: 1.0
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Content-Type: multipart/report; report-type=delivery-status;
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boundary="XXYYZZTT.1598250007/mx1.simplelogin.co"
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Content-Transfer-Encoding: 8bit
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Message-Id: <20200824062007.9988776655@mx1.simplelogin.co>
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This is a MIME-encapsulated message.
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--XXYYZZTT.1598250007/mx1.simplelogin.co
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Content-Description: Notification
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Content-Type: text/plain; charset=utf-8
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Content-Transfer-Encoding: 8bit
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This is the mail system at host mx1.simplelogin.co.
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I'm sorry to have to inform you that your message could not
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be delivered to one or more recipients. It's attached below.
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For further assistance, please send mail to <postmaster@simplelogin.io>
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If you do so, please include this problem report. You can
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delete your own text from the attached returned message.
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The mail system
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<something@icloud.com>: host mx01.mail.icloud.com[17.57.154.6] said:
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554 5.7.1 [CS01] Message rejected due to local policy. Please visit
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https://support.apple.com/en-us/HT204137 (in reply to end of DATA command)
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--XXYYZZTT.1598250007/mx1.simplelogin.co
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Content-Description: Delivery report
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Content-Type: message/delivery-status
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Reporting-MTA: dns; mx1.simplelogin.co
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X-Postfix-Queue-ID: XXYYZZTT
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X-Postfix-Sender: rfc822; reply+longstring@simplelogin.co
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Arrival-Date: Mon, 24 Aug 2020 06:20:04 +0000 (UTC)
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Final-Recipient: rfc822; something@icloud.com
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Original-Recipient: rfc822;something@icloud.com
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Action: failed
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Status: 5.7.1
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Remote-MTA: dns; mx01.mail.icloud.com
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Diagnostic-Code: smtp; 554 5.7.1 [CS01] Message rejected due to local policy.
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Please visit https://support.apple.com/en-us/HT204137
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--XXYYZZTT.1598250007/mx1.simplelogin.co
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Content-Description: Undelivered Message Headers
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Content-Type: text/rfc822-headers
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Content-Transfer-Encoding: 8bit
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Return-Path: <reply+longstring@simplelogin.co>
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X-SimpleLogin-Client-IP: 172.17.0.4
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Received: from [172.17.0.4] (unknown [172.17.0.4])
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by mx1.simplelogin.co (Postfix) with ESMTP id XXYYZZTT
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for <something@icloud.com>; Mon, 24 Aug 2020 06:20:04 +0000 (UTC)
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Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=91.241.74.242;
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helo=mail23-242.srv2.de; envelope-from=return@mailing.dhl.de;
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receiver=<UNKNOWN>
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Received: from mail23-242.srv2.de (mail23-242.srv2.de [91.241.74.242])
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(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
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(No client certificate requested)
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by mx1.simplelogin.co (Postfix) with ESMTPS id B7D123F1C6
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for <dhl@something.com>; Mon, 24 Aug 2020 06:20:03 +0000 (UTC)
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Message-ID: <368362807.12707001.1598249997169@rnd-04.broadmail.live>
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MIME-Version: 1.0
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Content-Type: multipart/signed; protocol="application/pkcs7-signature";
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micalg=sha-256;
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boundary="----=_Part_12707000_248822956.1598249997168"
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Date: Mon, 24 Aug 2020 08:19:57 +0200 (CEST)
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To: dhl@something.com
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Subject: Test subject
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X-ulpe:
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re-pO_5F8NoxrdpyqkmsptkpyTxDqB3osb7gfyo-41ZOK78E-3EOXXNLB-FKZPLZ@mailing.dhl.de
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List-Id: <1CZ4Z7YB-1DYLQB8.mailing.dhl.de>
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X-Report-Spam: complaints@episerver.com
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X-CSA-Complaints: whitelist-complaints@eco.de
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List-Unsubscribe-Post: List-Unsubscribe=One-Click
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mkaTechnicalID: 123456
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Feedback-ID: 1CZ4Z7YB:3EOXXNLB:episerver
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X-SimpleLogin-Type: Forward
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X-SimpleLogin-Mailbox-ID: 1234
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X-SimpleLogin-EmailLog-ID: 654321
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From: "DHL Paket - noreply@dhl.de"
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<reply+longstring@simplelogin.co>
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List-Unsubscribe: <mailto:unsubsribe@simplelogin.co?subject=123456=>
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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=simplelogin.co;
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i=@simplelogin.co; q=dns/txt; s=dkim; t=1598250004; h=from : to;
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bh=nXVR9uziNfqtwyhq6gQLFJvFtdyQ8WY/w7c1mCaf7bg=;
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b=QY/Jb4ls0zFOqExWFkwW9ZOKNvkYPDsj74ar1LNm703kyL341KwX3rGnnicrLV7WxYo8+
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pBY0HO7OSAJEOqmYdagAlVouuFiBMUtS2Jw/jiPHzcuvunE9JFOZFRUnNMKrr099i10U4H9
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ZwE8i6lQzG6IMN4spjxJ2HCO8hiB3AU=
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--XXYYZZTT.1598250007/mx1.simplelogin.co--
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"""
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assert (
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get_header_from_bounce(
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email.message_from_string(msg_str), "X-SimpleLogin-Mailbox-ID"
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)
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== "1234"
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)
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assert (
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get_header_from_bounce(
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email.message_from_string(msg_str), "X-SimpleLogin-EmailLog-ID"
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)
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== "654321"
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)
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assert (
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get_header_from_bounce(email.message_from_string(msg_str), "Not-exist") is None
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)
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