view test/test_mailgw_roundupmessage.py @ 6431:ada1edcc9132

issue2551142 - Import ... unique constraint failure. Full title: Import of retired node with username after active node fails with unique constraint failure. Fix this in two ways: 1) sort export on keyname, retired status so that retired nodes for a given keyname are before the acive node in the export file. This stops generating a broken export. 2) handle importing a broken export by deactivating/fixing up/clearing the active record's unique index entry temporarily. Redo the import of the retired node and resetting the active record to active. The fixup changes the unique index (keyvalue, __retired__) from (keyvalue, 0) to (keyvalue, -1). Then it retries the failed import of a retired record with keyvalue. I use -1 in case something goes wrong, It makes the record stand out in the database allowing hand recovery if needed. Rather than using -1 I could just use the id of the record like a normal retirement does. If the retry of the import fails (raises exception), reset the active record from -1 back to 0 and raise the exception. If it succeeds, reset the active record from -1 back to 0 and continue the import process. Reset __retired__ from -1 to 0 on every import. I don't think the performance loss from resetting on every exception matters as there should be very few exceptions. Also this makes the code more understandable. There is no reason to leave the -1 value in place and do a bulk rest of -1 to 0 after the class csv file is loaded. Also if a fixup is needed it is logged at level info with the rest of the database logging. Also success of the fixup is logged. Fixup failure generates a propagated exception.
author John Rouillard <rouilj@ieee.org>
date Mon, 07 Jun 2021 09:58:39 -0400
parents cacef71b3a54
children
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# -*- coding: utf-8 -*-
import email
import textwrap
from unittest import TestCase

from roundup.mailgw import RoundupMessage

PART_TYPES = {
    'multipart/signed': '    boundary="boundary-{indent}";\n',
    'multipart/mixed': '    boundary="boundary-{indent}";\n',
    'multipart/alternative': '    boundary="boundary-{indent}";\n',
    'text/plain': '    name="foo.txt"\n\nfoo\n',
    'text/plain_2': '    name="foo2.txt"\n\nfoo2\n',
    'text/plain_3': '    name="foo3.txt"\n\nfoo3\n',
    'text/html': '    name="foo.html"\n\n<html>foo</html>\n',
    'application/pgp-signature': '    name="foo.gpg"\nfoo\n',
    'application/pdf': '    name="foo.pdf"\nfoo\n',
    'application/pdf_2': '    name="foo2.pdf"\nfoo2\n',
    'message/rfc822': '\nSubject: foo\n\nfoo\n',
}


def message_from_string(msg):
    return email.message_from_string(
        textwrap.dedent(msg).lstrip(),
        RoundupMessage)


def construct_message(spec, depth=0):
    parts = []
    for content_type in spec:
        if isinstance(content_type, list):
            parts.extend(construct_message(content_type, depth=(depth + 1)))
            parts.append('\n--boundary-{0}--\n'.format(depth + 1))
        else:
            if depth > 0:
                parts.append('\n--boundary-{0}\n'.format(depth))

            parts.append(
                'Content-Type: {0};\n'.format(content_type.split('_')[0]))
            parts.append(PART_TYPES[content_type].format(indent=(depth + 1)))

    if depth == 0:
        return email.message_from_string(''.join(parts), RoundupMessage)
    else:
        return parts


class FlattenRoundupMessageTests(TestCase):
    def test_flatten_with_from(self):
        msg_string = textwrap.dedent("""
            From: Some User <some.user@example.com>
            To: issue_tracker@example.com
            Message-Id: <dummy_test_message_id>
            Subject: Test line start with from

            From here to there!
        """).lstrip()

        msg = email.message_from_string(msg_string, RoundupMessage)
        self.assertEqual(msg.flatten(), msg_string)


class HeaderRoundupMessageTests(TestCase):
    msg = message_from_string("""
        Content-Type: text/plain;
            charset="iso-8859-1"
        From: =?utf8?b?SOKCrGxsbw==?= <hello@example.com>
        To: Issue Tracker <issue_tracker@example.com>
        Cc: =?utf8?b?SOKCrGxsbw==?= <hello@example.com>,
            Some User <some.user@example.com>
        Message-Id: <dummy_test_message_id>
        Subject: [issue] Testing...

        This is a test submission of a new issue.
    """)

    # From line has a null/empty encoding spec
    # to trigger failure in mailgw.py:RoundupMessage::_decode_header
    bad_msg_utf8 = message_from_string("""
        Content-Type: text/plain;
            charset="iso-8859-1"
        From: =??b?SOKCrGxsbw=====?= <hello@example.com>
        To: Issue Tracker <issue_tracker@example.com>
        Cc: =?utf8?b?SOKCrGxsbw==?= <hello@example.com>,
            Some User <some.user@example.com>
        Message-Id: <dummy_test_message_id>
        Subject: [issue] Testing...

        This is a test submission of a new issue.
    """)

    bad_msg_iso_8859_1 = message_from_string("""
        Content-Type: text/plain;
            charset="iso-8859-1"
        From: =??q?\x80SOKCrGxsbw=====?= <hello@example.com>
        To: Issue Tracker <issue_tracker@example.com>
        Cc: =?utf8?b?SOKCrGxsbw==?= <hello@example.com>,
            Some User <some.user@example.com>
        Message-Id: <dummy_test_message_id>
        Subject: [issue] Testing...

        This is a test submission of a new issue.
    """)

    def test_get_plain_header(self):
        self.assertEqual(
            self.msg.get_header('to'),
            'Issue Tracker <issue_tracker@example.com>')

    def test_get_encoded_header(self):
        self.assertEqual(
            self.msg.get_header('from'),
            'H€llo <hello@example.com>')

        # issue2551008 null encoding causes crash.
        self.assertEqual(
            self.bad_msg_utf8.get_header('from'),
            'H€llo <hello@example.com>')

        # the decoded value is not what the user wanted,
        # but they should have created a valid header
        # if they wanted the right outcome...
        self.assertIn(
            self.bad_msg_iso_8859_1.get_header('from'),
            (
                '\xc2\x80SOKCrGxsbw===== <hello@example.com>', # python 2
                '\x80SOKCrGxsbw===== <hello@example.com>'      # python 3
            ))

    def test_get_address_list(self):
        self.assertEqual(self.msg.get_address_list('cc'), [
            ('H€llo', 'hello@example.com'),
            ('Some User', 'some.user@example.com'),
        ])


class BodyRoundupMessageTests(TestCase):
    def test_get_body_iso_8859_1(self):
        msg = message_from_string("""
            Content-Type: text/plain; charset="iso-8859-1"
            Content-Transfer-Encoding: quoted-printable

            A message with encoding (encoded oe =F6)
        """)

        self.assertEqual(
            msg.get_body(),
            'A message with encoding (encoded oe ö)\n')

    def test_get_body_utf_8(self):
        msg = message_from_string("""
            Content-Type: text/plain; charset="utf-8"
            Content-Transfer-Encoding: quoted-printable

            A message with encoding (encoded oe =C3=B6)
        """)

        self.assertEqual(
            msg.get_body(),
            'A message with encoding (encoded oe ö)\n')

    def test_get_body_base64(self):
        msg = message_from_string("""
            Content-Type: application/octet-stream
            Content-Disposition: attachment; filename="message.dat"
            Content-Transfer-Encoding: base64

            dGVzdCBlbmNvZGVkIG1lc3NhZ2U=
        """)

        self.assertEqual(msg.get_body(), b'test encoded message')


class AsAttachmentRoundupMessageTests(TestCase):
    def test_text_plain(self):
        msg = message_from_string("""
            Content-Type: text/plain; charset="iso-8859-1

            Plain text message
        """)

        self.assertEqual(
            msg.as_attachment(),
            (None, 'text/plain', 'Plain text message\n'))

    def test_octet_stream(self):
        msg = message_from_string("""
            Content-Type: application/octet-stream
            Content-Disposition: attachment; filename="message.dat"
            Content-Transfer-Encoding: base64

            dGVzdCBlbmNvZGVkIG1lc3NhZ2U=
        """)

        self.assertEqual(
            msg.as_attachment(),
            ('message.dat', 'application/octet-stream',
             b'test encoded message'))

    def test_rfc822(self):
        msg = message_from_string("""
            Content-Type: message/rfc822

            Subject: foo

            foo
        """)

        self.assertEqual(
            msg.as_attachment(),
            ('foo.eml', 'message/rfc822', 'Subject: foo\n\nfoo\n'))

    def test_rfc822_no_subject(self):
        msg = message_from_string("""
            Content-Type: message/rfc822

            X-No-Headers: nope

            foo
        """)

        self.assertEqual(
            msg.as_attachment(),
            (None, 'message/rfc822', 'X-No-Headers: nope\n\nfoo\n'))

    def test_rfc822_no_payload(self):
        msg = message_from_string("""\
            Content-Type: message/rfc822
        """)

        self.assertEqual(
            msg.as_attachment(),
            (None, 'message/rfc822', '\n'))


class ExtractContentRoundupMessageTests(TestCase):
    def test_text_plain(self):
        msg = construct_message(['text/plain'])

        self.assertEqual(msg.extract_content(), ('foo\n', [], False))

    def test_attached_text_plain(self):
        msg = construct_message([
            'multipart/mixed', [
                'text/plain',
                'text/plain',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo\n',
            [('foo.txt', 'text/plain', 'foo\n')],
            False
        ))

    def test_multipart_mixed(self):
        msg = construct_message([
            'multipart/mixed', [
                'text/plain',
                'application/pdf',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo\n',
            [('foo.pdf', 'application/pdf', b'foo\n')],
            False
        ))

    def test_multipart_alternative(self):
        msg = construct_message([
            'multipart/alternative', [
                'text/plain',
                'text/html',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo\n',
            [('foo.html', 'text/html', '<html>foo</html>\n')],
            False
        ))

    def test_deep_multipart_alternative(self):
        msg = construct_message([
            'multipart/mixed', [
                'multipart/alternative', [
                    'text/plain',
                    'application/pdf',
                    'text/plain_2',
                    'text/html',
                ],
                'multipart/alternative', [
                    'text/plain_3',
                    'application/pdf_2',
                ],
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo2\n', [
                ('foo.pdf', 'application/pdf', b'foo\n'),
                ('foo.txt', 'text/plain', 'foo\n'),
                ('foo.html', 'text/html', '<html>foo</html>\n'),
                ('foo3.txt', 'text/plain', 'foo3\n'),
                ('foo2.pdf', 'application/pdf', b'foo2\n'),
            ],
            False
        ))

    def test_deep_multipart_alternative_ignore(self):
        msg = construct_message([
            'multipart/mixed', [
                'multipart/alternative', [
                    'text/plain',
                    'application/pdf',
                    'text/plain_2',
                    'text/html',
                ],
                'multipart/alternative', [
                    'text/plain_3',
                    'application/pdf_2',
                ],
            ],
        ])

        msg.extract_content(ignore_alternatives=True)
        self.assertEqual(msg.extract_content(ignore_alternatives=True), (
            'foo2\n', [
                ('foo3.txt', 'text/plain', 'foo3\n'),
                ('foo2.pdf', 'application/pdf', b'foo2\n'),
            ],
            False
        ))

    def test_signed_text(self):
        msg = construct_message([
            'multipart/signed', [
                'text/plain',
                'application/pgp-signature',
            ],
        ])

        self.assertEqual(msg.extract_content(), ('foo\n', [], False))

    def test_signed_attachemts(self):
        msg = construct_message([
            'multipart/signed', [
                'multipart/mixed', [
                    'text/plain',
                    'application/pdf',
                ],
                'application/pgp-signature',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo\n',
            [('foo.pdf', 'application/pdf', b'foo\n')],
            False
        ))

    def test_attached_signature(self):
        msg = construct_message([
            'multipart/mixed', [
                'text/plain',
                'application/pgp-signature',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            'foo\n',
            [('foo.gpg', 'application/pgp-signature', b'foo\n')],
            False
        ))

    def test_rfc822_message(self):
        msg = construct_message([
            'multipart/mixed', [
                'message/rfc822',
            ],
        ])

        self.assertEqual(msg.extract_content(), (
            None,
            [('foo.eml', 'message/rfc822', 'Subject: foo\n\nfoo\n')],
            False
        ))

    def test_rfc822_message_unpack(self):
        msg = construct_message([
            'multipart/mixed', [
                'text/plain',
                'message/rfc822',
            ],
        ])

        self.assertEqual(msg.extract_content(unpack_rfc822=True), (
            'foo\n',
            [(None, 'text/plain', 'foo\n')],
            False
        ))


class PgpDetectRoundupMessageTests(TestCase):
    def test_pgp_message_signed(self):
        msg = message_from_string("""
            Content-Type: multipart/signed; micalg=pgp-sha1;
                    protocol="application/pgp-signature"

            Fake Body
        """)

        self.assertTrue(msg.pgp_signed())

    def test_pgp_message_not_signed(self):
        msg = message_from_string("""
            Content-Type: text/plain

            Fake Body
        """)

        self.assertFalse(msg.pgp_signed())

    def test_pgp_message_signed_protocol_missing(self):
        msg = message_from_string("""
            Content-Type: multipart/signed; micalg=pgp-sha1

            Fake Body
        """)

        self.assertFalse(msg.pgp_signed())

    def test_pgp_message_signed_protocol_invalid(self):
        msg = message_from_string("""
            Content-Type: multipart/signed;
                protocol="application/not-pgp-signature"

            Fake Body
        """)

        self.assertFalse(msg.pgp_signed())

    def test_pgp_message_encrypted(self):
        msg = message_from_string("""
            Content-Type: multipart/encrypted;
                protocol="application/pgp-encrypted"

            Fake Body
        """)

        self.assertTrue(msg.pgp_encrypted())

    def test_pgp_message_not_encrypted(self):
        msg = message_from_string("""
            Content-Type: text/plain

            Fake Body
        """)

        self.assertFalse(msg.pgp_encrypted())

    def test_pgp_message_encrypted_protocol_missing(self):
        msg = message_from_string("""
            Content-Type: multipart/encrypted

            Fake Body
        """)

        self.assertFalse(msg.pgp_encrypted())

    def test_pgp_message_encrypted_protocol_invalid(self):
        msg = message_from_string("""
            Content-Type: multipart/encrypted;
                protocol="application/not-pgp-encrypted"

            Fake Body
        """)

        self.assertFalse(msg.pgp_encrypted())

# TODO: testing of the verify_signature() and decrypt() RoundupMessage methods.
#   The whole PGP testing stuff seems a bit messy, so we will rely on the tests
#   in test_mailgw for the time being

Roundup Issue Tracker: http://roundup-tracker.org/