289 lines
9.3 KiB
Python
289 lines
9.3 KiB
Python
import email
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from email.message import EmailMessage
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from app.config import MAX_ALERT_24H
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from app.email_utils import (
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get_email_domain_part,
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email_belongs_to_alias_domains,
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email_domain_can_be_used_as_mailbox,
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delete_header,
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add_or_replace_header,
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parseaddr_unicode,
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send_email_with_rate_control,
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copy,
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get_spam_from_header,
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get_header_from_bounce,
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)
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from app.extensions import db
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from app.models import User, CustomDomain
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def test_get_email_domain_part():
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assert get_email_domain_part("ab@cd.com") == "cd.com"
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def test_email_belongs_to_alias_domains():
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# default alias domain
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assert email_belongs_to_alias_domains("ab@sl.local")
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assert not email_belongs_to_alias_domains("ab@not-exist.local")
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assert email_belongs_to_alias_domains("hey@d1.test")
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assert not email_belongs_to_alias_domains("hey@d3.test")
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def test_can_be_used_as_personal_email(flask_client):
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# default alias domain
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assert not email_domain_can_be_used_as_mailbox("ab@sl.local")
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assert not email_domain_can_be_used_as_mailbox("hey@d1.test")
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assert email_domain_can_be_used_as_mailbox("hey@ab.cd")
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# custom domain
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user = User.create(
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email="a@b.c", password="password", name="Test User", activated=True
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)
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db.session.commit()
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CustomDomain.create(user_id=user.id, domain="ab.cd", verified=True)
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db.session.commit()
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assert not email_domain_can_be_used_as_mailbox("hey@ab.cd")
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# disposable domain
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assert not email_domain_can_be_used_as_mailbox("abcd@10minutesmail.fr")
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assert not email_domain_can_be_used_as_mailbox("abcd@temp-mail.com")
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# subdomain will not work
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assert not email_domain_can_be_used_as_mailbox("abcd@sub.temp-mail.com")
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# valid domains should not be affected
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assert email_domain_can_be_used_as_mailbox("abcd@protonmail.com")
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assert email_domain_can_be_used_as_mailbox("abcd@gmail.com")
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assert email_domain_can_be_used_as_mailbox("abcd@example.com")
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def test_delete_header():
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msg = EmailMessage()
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assert msg._headers == []
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msg["H"] = "abcd"
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msg["H"] = "xyzt"
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assert msg._headers == [("H", "abcd"), ("H", "xyzt")]
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delete_header(msg, "H")
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assert msg._headers == []
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def test_add_or_replace_header():
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msg = EmailMessage()
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msg["H"] = "abcd"
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msg["H"] = "xyzt"
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assert msg._headers == [("H", "abcd"), ("H", "xyzt")]
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add_or_replace_header(msg, "H", "new")
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assert msg._headers == [("H", "new")]
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def test_parseaddr_unicode():
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# only email
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assert parseaddr_unicode("abcd@gmail.com") == (
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"",
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"abcd@gmail.com",
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)
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# ascii address
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assert parseaddr_unicode("First Last <abcd@gmail.com>") == (
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"First Last",
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"abcd@gmail.com",
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)
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# Handle quote
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assert parseaddr_unicode('"First Last" <abcd@gmail.com>') == (
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"First Last",
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"abcd@gmail.com",
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)
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# UTF-8 charset
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assert parseaddr_unicode("=?UTF-8?B?TmjGoW4gTmd1eeG7hW4=?= <abcd@gmail.com>") == (
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"Nhơn Nguyễn",
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"abcd@gmail.com",
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)
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# iso-8859-1 charset
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assert parseaddr_unicode("=?iso-8859-1?q?p=F6stal?= <abcd@gmail.com>") == (
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"pöstal",
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"abcd@gmail.com",
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)
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def test_send_email_with_rate_control(flask_client):
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user = User.create(
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email="a@b.c", password="password", name="Test User", activated=True
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)
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db.session.commit()
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for _ in range(MAX_ALERT_24H):
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assert send_email_with_rate_control(
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user, "test alert type", "abcd@gmail.com", "subject", "plaintext"
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)
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assert not send_email_with_rate_control(
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user, "test alert type", "abcd@gmail.com", "subject", "plaintext"
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)
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def test_copy():
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email_str = """
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From: abcd@gmail.com
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To: hey@example.org
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Subject: subject
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Body
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"""
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msg = email.message_from_string(email_str)
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msg2 = copy(msg)
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assert msg.as_bytes() == msg2.as_bytes()
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def test_get_spam_from_header():
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is_spam, _ = get_spam_from_header(
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"""No, score=-0.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID,
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DKIM_VALID_AU,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_PASS,
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URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2"""
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)
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assert not is_spam
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is_spam, _ = get_spam_from_header(
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"""Yes, score=-0.1 required=5.0 tests=DKIM_SIGNED,DKIM_VALID,
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DKIM_VALID_AU,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_PASS,
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URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2"""
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)
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assert is_spam
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# the case where max_score is less than the default used by SpamAssassin
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is_spam, _ = get_spam_from_header(
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"""No, score=6 required=10.0 tests=DKIM_SIGNED,DKIM_VALID,
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DKIM_VALID_AU,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2,SPF_PASS,
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URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.2""",
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max_score=5,
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)
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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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