mirror of https://github.com/zulip/zulip.git
116 lines
4.8 KiB
Python
116 lines
4.8 KiB
Python
import base64
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import email
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import email.policy
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import os
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from email.message import EmailMessage
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from typing import Optional
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import orjson
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from django.conf import settings
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from django.core.management.base import CommandParser
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from zerver.lib.email_mirror import mirror_email_message
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from zerver.lib.email_mirror_helpers import encode_email_address
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from zerver.lib.management import CommandError, ZulipBaseCommand
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from zerver.models import Realm, get_realm, get_stream
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# This command loads an email from a specified file and sends it
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# to the email mirror. Simple emails can be passed in a JSON file,
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# Look at zerver/tests/fixtures/email/1.json for an example of how
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# it should look. You can also pass a file which has the raw email,
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# for example by writing an email.message.EmailMessage type object
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# to a file using as_string() or as_bytes() methods, or copy-pasting
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# the content of "Show original" on an email in Gmail.
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# See zerver/tests/fixtures/email/1.txt for a very simple example,
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# but anything that the message_from_binary_file function
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# from the email library can parse should work.
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# Value of the TO: header doesn't matter, as it is overridden
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# by the command in order for the email to be sent to the correct stream.
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class Command(ZulipBaseCommand):
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help = """
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Send specified email from a fixture file to the email mirror
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Example:
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./manage.py send_to_email_mirror --fixture=zerver/tests/fixtures/emails/filename
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"""
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def add_arguments(self, parser: CommandParser) -> None:
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parser.add_argument('-f', '--fixture',
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help='The path to the email message you\'d like to send '
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'to the email mirror.\n'
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'Accepted formats: json or raw email file. '
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'See zerver/tests/fixtures/email/ for examples')
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parser.add_argument('-s', '--stream',
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help='The name of the stream to which you\'d like to send '
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'the message. Default: Denmark')
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self.add_realm_args(parser, help="Specify which realm to connect to; default is zulip")
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def handle(self, **options: Optional[str]) -> None:
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if options['fixture'] is None:
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self.print_help('./manage.py', 'send_to_email_mirror')
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raise CommandError
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if options['stream'] is None:
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stream = "Denmark"
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else:
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stream = options['stream']
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realm = self.get_realm(options)
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if realm is None:
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realm = get_realm("zulip")
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full_fixture_path = os.path.join(settings.DEPLOY_ROOT, options['fixture'])
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# parse the input email into EmailMessage type and prepare to process_message() it
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message = self._parse_email_fixture(full_fixture_path)
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self._prepare_message(message, realm, stream)
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mirror_email_message(
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message['To'].addresses[0].addr_spec,
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base64.b64encode(message.as_bytes()).decode(),
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)
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def _does_fixture_path_exist(self, fixture_path: str) -> bool:
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return os.path.exists(fixture_path)
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def _parse_email_json_fixture(self, fixture_path: str) -> EmailMessage:
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with open(fixture_path, "rb") as fp:
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json_content = orjson.loads(fp.read())[0]
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message = EmailMessage()
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message['From'] = json_content['from']
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message['Subject'] = json_content['subject']
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message.set_content(json_content['body'])
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return message
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def _parse_email_fixture(self, fixture_path: str) -> EmailMessage:
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if not self._does_fixture_path_exist(fixture_path):
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raise CommandError(f'Fixture {fixture_path} does not exist')
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if fixture_path.endswith('.json'):
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return self._parse_email_json_fixture(fixture_path)
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else:
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with open(fixture_path, "rb") as fp:
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message = email.message_from_binary_file(fp, policy=email.policy.default)
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# https://github.com/python/typeshed/issues/2417
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assert isinstance(message, EmailMessage)
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return message
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def _prepare_message(self, message: EmailMessage, realm: Realm, stream_name: str) -> None:
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stream = get_stream(stream_name, realm)
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# The block below ensures that the imported email message doesn't have any recipient-like
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# headers that are inconsistent with the recipient we want (the stream address).
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recipient_headers = ["X-Gm-Original-To", "Delivered-To", "Envelope-To",
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"Resent-To", "Resent-CC", "CC"]
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for header in recipient_headers:
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if header in message:
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del message[header]
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message[header] = encode_email_address(stream)
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if 'To' in message:
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del message['To']
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message['To'] = encode_email_address(stream)
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