basic structure to represent and get default config values

listconfig.py

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+from typing import Any, Dict, Iterable
+
+from types import MathebauMLType
+
+# source of which keys exist: https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/rest/docs/listconf.html
+_DEFAULTS: Dict[str, Any] = {
+    'acceptable_aliases': ['one@example.com', 'two@example.com'],
+    'accept_these_nonmembers': ['aperson@example.com'],
+    'admin_immed_notify': False,
+    'admin_notify_mchanges': True,
+    'administrivia': False,
+    'advertised': False,
+    'anonymous_list': True,
+    'archive_policy': 'never',
+    'archive_rendering_mode': 'text',
+    'autorespond_owner': 'respond_and_discard',
+    'autorespond_postings': 'respond_and_continue',
+    'autorespond_requests': 'respond_and_discard',
+    'autoresponse_grace_period': '45d',
+    'autoresponse_owner_text': 'the owner',
+    'autoresponse_postings_text': 'the mailing list',
+    'autoresponse_request_text': 'the robot',
+    'bounce_info_stale_after': '5d',
+    'bounce_notify_owner_on_bounce_increment': False,
+    'bounce_notify_owner_on_disable': True,
+    'bounce_notify_owner_on_removal': True,
+    'bounce_score_threshold': 5,
+    'bounce_you_are_disabled_warnings': 3,
+    'bounce_you_are_disabled_warnings_interval': '1d',
+    'forward_unrecognized_bounces_to': 'administrators',
+    'filter_extensions': ['.mkv'],
+    'filter_types': ['application/zip'],
+    'process_bounces': True,
+    'discard_these_nonmembers': ['^name_*bperson*@example.com'],
+    'display_name': 'Fnords',
+    'description': 'This is my mailing list',
+    'include_rfc2369_headers': False,
+    'info': 'This is the mailing list information',
+    'allow_list_posts': False,
+    'digest_send_periodic': False,
+    'digest_size_threshold': 10.5,
+    'digest_volume_frequency': 'yearly',
+    'digests_enabled': False,
+    'dmarc_mitigate_action': 'munge_from',
+    'dmarc_mitigate_unconditionally': False,
+    'dmarc_moderation_notice': 'Some moderation notice',
+    'dmarc_wrapped_message_text': 'some message text',
+    'personalize': 'none',
+    'preferred_language': 'ja',
+    'posting_pipeline': 'virgin',
+    'filter_content': True,
+    'first_strip_reply_to': True,
+    'gateway_to_mail': True,
+    'gateway_to_news': True,
+    'linked_newsgroup': 'my.group',
+    'newsgroup_moderation': 'moderated',
+    'nntp_prefix_subject_too': False,
+    'convert_html_to_plaintext': True,
+    'collapse_alternatives': False,
+    'reject_these_nonmembers': ['^b[hello]*@example.com'],
+    'hold_these_nonmembers': ['^re[gG]ex@example.com'],
+    'reply_goes_to_list': 'point_to_list',
+    'reply_to_address': 'bee@example.com',
+    'require_explicit_destination': False,
+    'member_roster_visibility': 'members',
+    'send_goodbye_message': False,
+    'send_welcome_message': False,
+    'subject_prefix': '[ant]',
+    'subscription_policy': 'moderate',
+    'unsubscription_policy': 'confirm',
+    'default_member_action': 'hold',
+    'default_nonmember_action': 'discard',
+    'moderator_password': 'password',
+    'max_message_size': '500',
+    'respond_to_post_requests': True,
+    'max_days_to_hold': '20',
+    'max_num_recipients': '20',
+    'pass_extensions': ['.pdf'],
+    'pass_types': ['image/jpeg'],
+    'filter_action': 'preserve',
+    'emergency': False
+}
+
+
+def get_single_default(key: str, listtype: MathebauMLType) -> Any:
+    """Get the default value for a single key of a specific list type"""
+    val = _DEFAULTS.get(key)
+    if isinstance(val, dict):
+        return val.get(listtype)
+    return val
+
+
+def get_config_keys() -> Iterable[str]:
+    """Get names of all config attributes a mailinglist has."""
+    return _DEFAULTS.keys()
+
+
+def get_default_config(listtype: MathebauMLType) -> Dict[str, Any]:
+    ret = dict()
+    for key in get_config_keys():
+        ret[key] = get_single_default(key, listtype)
+    return ret

types.py

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+import enum
+
+
+class MathebauMLType(enum.Enum):
+    """Different types of mailinglists at the mathebau."""
+    internPublic = 10
+    internPrivate = 15
+    broadPublic = 20
+    broadPrivate = 25