mirror of https://github.com/zulip/zulip.git
691 lines
19 KiB
Python
691 lines
19 KiB
Python
from enum import Enum, auto
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from typing import Any, Dict, List, Optional, Tuple, Union
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from django.core.exceptions import ValidationError
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from django.utils.translation import gettext as _
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from django_stubs_ext import StrPromise
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from typing_extensions import override
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class ErrorCode(Enum):
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BAD_REQUEST = auto() # Generic name, from the name of HTTP 400.
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REQUEST_VARIABLE_MISSING = auto()
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REQUEST_VARIABLE_INVALID = auto()
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INVALID_JSON = auto()
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BAD_IMAGE = auto()
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REALM_UPLOAD_QUOTA = auto()
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BAD_NARROW = auto()
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CANNOT_DEACTIVATE_LAST_USER = auto()
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MISSING_HTTP_EVENT_HEADER = auto()
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STREAM_DOES_NOT_EXIST = auto()
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UNAUTHORIZED_PRINCIPAL = auto()
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UNSUPPORTED_WEBHOOK_EVENT_TYPE = auto()
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ANOMALOUS_WEBHOOK_PAYLOAD = auto()
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BAD_EVENT_QUEUE_ID = auto()
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CSRF_FAILED = auto()
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INVITATION_FAILED = auto()
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INVALID_ZULIP_SERVER = auto()
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INVALID_PUSH_DEVICE_TOKEN = auto()
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INVALID_REMOTE_PUSH_DEVICE_TOKEN = auto()
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INVALID_MARKDOWN_INCLUDE_STATEMENT = auto()
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REQUEST_CONFUSING_VAR = auto()
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INVALID_API_KEY = auto()
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INVALID_ZOOM_TOKEN = auto()
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UNAUTHENTICATED_USER = auto()
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NONEXISTENT_SUBDOMAIN = auto()
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RATE_LIMIT_HIT = auto()
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USER_DEACTIVATED = auto()
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REALM_DEACTIVATED = auto()
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REMOTE_SERVER_DEACTIVATED = auto()
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PASSWORD_AUTH_DISABLED = auto()
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PASSWORD_RESET_REQUIRED = auto()
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AUTHENTICATION_FAILED = auto()
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UNAUTHORIZED = auto()
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REQUEST_TIMEOUT = auto()
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MOVE_MESSAGES_TIME_LIMIT_EXCEEDED = auto()
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REACTION_ALREADY_EXISTS = auto()
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REACTION_DOES_NOT_EXIST = auto()
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SERVER_NOT_READY = auto()
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MISSING_REMOTE_REALM = auto()
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TOPIC_WILDCARD_MENTION_NOT_ALLOWED = auto()
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STREAM_WILDCARD_MENTION_NOT_ALLOWED = auto()
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REMOTE_BILLING_UNAUTHENTICATED_USER = auto()
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REMOTE_REALM_SERVER_MISMATCH_ERROR = auto()
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PUSH_NOTIFICATIONS_DISALLOWED = auto()
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EXPECTATION_MISMATCH = auto()
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class JsonableError(Exception):
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"""A standardized error format we can turn into a nice JSON HTTP response.
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This class can be invoked in a couple ways.
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* Easiest, but completely machine-unreadable:
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raise JsonableError(_("No such widget: {}").format(widget_name))
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The message may be passed through to clients and shown to a user,
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so translation is required. Because the text will vary depending
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on the user's language, it's not possible for code to distinguish
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this error from others in a non-buggy way.
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* Fully machine-readable, with an error code and structured data:
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class NoSuchWidgetError(JsonableError):
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code = ErrorCode.NO_SUCH_WIDGET
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data_fields = ['widget_name']
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def __init__(self, widget_name: str) -> None:
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self.widget_name: str = widget_name
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@staticmethod
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def msg_format() -> str:
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return _("No such widget: {widget_name}")
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raise NoSuchWidgetError(widget_name)
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Now both server and client code see a `widget_name` attribute
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and an error code.
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Subclasses may also override `http_status_code`.
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"""
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# Override this in subclasses, as needed.
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code: ErrorCode = ErrorCode.BAD_REQUEST
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# Override this in subclasses if providing structured data.
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data_fields: List[str] = []
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# Optionally override this in subclasses to return a different HTTP status,
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# like 403 or 404.
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http_status_code: int = 400
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def __init__(self, msg: Union[str, StrPromise]) -> None:
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# `_msg` is an implementation detail of `JsonableError` itself.
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self._msg = msg
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@staticmethod
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def msg_format() -> str:
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"""Override in subclasses. Gets the items in `data_fields` as format args.
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This should return (a translation of) a string literal.
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The reason it's not simply a class attribute is to allow
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translation to work.
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"""
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# Secretly this gets one more format arg not in `data_fields`: `_msg`.
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# That's for the sake of the `JsonableError` base logic itself, for
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# the simplest form of use where we just get a plain message string
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# at construction time.
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return "{_msg}"
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@property
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def extra_headers(self) -> Dict[str, Any]:
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return {}
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#
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# Infrastructure -- not intended to be overridden in subclasses.
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#
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@property
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def msg(self) -> str:
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format_data = dict(
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((f, getattr(self, f)) for f in self.data_fields), _msg=getattr(self, "_msg", None)
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)
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return self.msg_format().format(**format_data)
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@property
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def data(self) -> Dict[str, Any]:
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return dict(((f, getattr(self, f)) for f in self.data_fields), code=self.code.name)
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@override
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def __str__(self) -> str:
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return self.msg
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class UnauthorizedError(JsonableError):
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code: ErrorCode = ErrorCode.UNAUTHORIZED
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http_status_code: int = 401
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def __init__(self, msg: Optional[str] = None, www_authenticate: Optional[str] = None) -> None:
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if msg is None:
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msg = _("Not logged in: API authentication or user session required")
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super().__init__(msg)
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if www_authenticate is None:
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self.www_authenticate = 'Basic realm="zulip"'
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elif www_authenticate == "session":
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self.www_authenticate = 'Session realm="zulip"'
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else:
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raise AssertionError("Invalid www_authenticate value!")
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@property
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@override
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def extra_headers(self) -> Dict[str, Any]:
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extra_headers_dict = super().extra_headers
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extra_headers_dict["WWW-Authenticate"] = self.www_authenticate
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return extra_headers_dict
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class StreamDoesNotExistError(JsonableError):
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code = ErrorCode.STREAM_DOES_NOT_EXIST
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data_fields = ["stream"]
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def __init__(self, stream: str) -> None:
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self.stream = stream
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Channel '{stream}' does not exist")
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class StreamWithIDDoesNotExistError(JsonableError):
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code = ErrorCode.STREAM_DOES_NOT_EXIST
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data_fields = ["stream_id"]
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def __init__(self, stream_id: int) -> None:
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self.stream_id = stream_id
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Channel with ID '{stream_id}' does not exist")
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class IncompatibleParametersError(JsonableError):
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data_fields = ["parameters"]
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def __init__(self, parameters: List[str]) -> None:
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self.parameters = ", ".join(parameters)
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Unsupported parameter combination: {parameters}")
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class CannotDeactivateLastUserError(JsonableError):
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code = ErrorCode.CANNOT_DEACTIVATE_LAST_USER
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data_fields = ["is_last_owner", "entity"]
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def __init__(self, is_last_owner: bool) -> None:
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self.is_last_owner = is_last_owner
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self.entity = _("organization owner") if is_last_owner else _("user")
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Cannot deactivate the only {entity}.")
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class InvalidMarkdownIncludeStatementError(JsonableError):
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code = ErrorCode.INVALID_MARKDOWN_INCLUDE_STATEMENT
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data_fields = ["include_statement"]
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def __init__(self, include_statement: str) -> None:
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self.include_statement = include_statement
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Invalid Markdown include statement: {include_statement}")
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class RateLimitedError(JsonableError):
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code = ErrorCode.RATE_LIMIT_HIT
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http_status_code = 429
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def __init__(self, secs_to_freedom: Optional[float] = None) -> None:
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self.secs_to_freedom = secs_to_freedom
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@staticmethod
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@override
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def msg_format() -> str:
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return _("API usage exceeded rate limit")
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@property
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@override
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def extra_headers(self) -> Dict[str, Any]:
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extra_headers_dict = super().extra_headers
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if self.secs_to_freedom is not None:
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extra_headers_dict["Retry-After"] = self.secs_to_freedom
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return extra_headers_dict
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@property
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@override
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def data(self) -> Dict[str, Any]:
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data_dict = super().data
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data_dict["retry-after"] = self.secs_to_freedom
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return data_dict
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class InvalidJSONError(JsonableError):
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code = ErrorCode.INVALID_JSON
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Malformed JSON")
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class OrganizationMemberRequiredError(JsonableError):
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code: ErrorCode = ErrorCode.UNAUTHORIZED_PRINCIPAL
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Must be an organization member")
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class OrganizationAdministratorRequiredError(JsonableError):
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code: ErrorCode = ErrorCode.UNAUTHORIZED_PRINCIPAL
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Must be an organization administrator")
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class OrganizationOwnerRequiredError(JsonableError):
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code: ErrorCode = ErrorCode.UNAUTHORIZED_PRINCIPAL
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Must be an organization owner")
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class AuthenticationFailedError(JsonableError):
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# Generic class for authentication failures
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code: ErrorCode = ErrorCode.AUTHENTICATION_FAILED
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http_status_code = 401
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Your username or password is incorrect")
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class UserDeactivatedError(AuthenticationFailedError):
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code: ErrorCode = ErrorCode.USER_DEACTIVATED
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Account is deactivated")
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class RealmDeactivatedError(AuthenticationFailedError):
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code: ErrorCode = ErrorCode.REALM_DEACTIVATED
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@staticmethod
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@override
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def msg_format() -> str:
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return _("This organization has been deactivated")
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class RemoteServerDeactivatedError(AuthenticationFailedError):
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code: ErrorCode = ErrorCode.REALM_DEACTIVATED
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@staticmethod
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@override
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def msg_format() -> str:
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return _(
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"The mobile push notification service registration for your server has been deactivated"
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)
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class PasswordAuthDisabledError(AuthenticationFailedError):
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code: ErrorCode = ErrorCode.PASSWORD_AUTH_DISABLED
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Password authentication is disabled in this organization")
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class PasswordResetRequiredError(AuthenticationFailedError):
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code: ErrorCode = ErrorCode.PASSWORD_RESET_REQUIRED
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Your password has been disabled and needs to be reset")
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class MarkdownRenderingError(Exception):
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pass
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class InvalidAPIKeyError(JsonableError):
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code = ErrorCode.INVALID_API_KEY
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http_status_code = 401
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Invalid API key")
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class InvalidAPIKeyFormatError(InvalidAPIKeyError):
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Malformed API key")
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class WebhookError(JsonableError):
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"""
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Intended as a generic exception raised by specific webhook
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integrations. This class is subclassed by more specific exceptions
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such as UnsupportedWebhookEventTypeError and AnomalousWebhookPayloadError.
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"""
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data_fields = ["webhook_name"]
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def __init__(self) -> None:
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# webhook_name is often set by decorators such as webhook_view
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# in zerver/decorator.py
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self.webhook_name = "(unknown)"
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class UnsupportedWebhookEventTypeError(WebhookError):
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"""Intended as an exception for event formats that we know the
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third-party service generates but which Zulip doesn't support /
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generate a message for.
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Exceptions where we cannot parse the event type, possibly because
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the event isn't actually from the service in question, should
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raise AnomalousWebhookPayloadError.
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"""
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code = ErrorCode.UNSUPPORTED_WEBHOOK_EVENT_TYPE
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http_status_code = 200
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data_fields = ["webhook_name", "event_type"]
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def __init__(self, event_type: Optional[str]) -> None:
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super().__init__()
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self.event_type = event_type
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@staticmethod
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@override
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def msg_format() -> str:
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return _(
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"The '{event_type}' event isn't currently supported by the {webhook_name} webhook; ignoring"
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)
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class AnomalousWebhookPayloadError(WebhookError):
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"""Intended as an exception for incoming webhook requests that we
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cannot recognize as having been generated by the service in
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question. (E.g. because someone pointed a Jira server at the
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GitHub integration URL).
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If we can parse the event but don't support it, use
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UnsupportedWebhookEventTypeError.
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"""
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code = ErrorCode.ANOMALOUS_WEBHOOK_PAYLOAD
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Unable to parse request: Did {webhook_name} generate this event?")
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class MissingAuthenticationError(JsonableError):
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code = ErrorCode.UNAUTHENTICATED_USER
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http_status_code = 401
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def __init__(self) -> None:
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pass
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# No msg_format is defined since this exception is caught and
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# converted into json_unauthorized in Zulip's middleware.
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class RemoteBillingAuthenticationError(JsonableError):
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# We want this as a distinct class from MissingAuthenticationError,
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# as we don't want the json_unauthorized conversion mechanism to apply
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# to this.
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code = ErrorCode.REMOTE_BILLING_UNAUTHENTICATED_USER
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http_status_code = 401
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("User not authenticated")
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class InvalidSubdomainError(JsonableError):
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code = ErrorCode.NONEXISTENT_SUBDOMAIN
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http_status_code = 404
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Invalid subdomain")
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class ZephyrMessageAlreadySentError(Exception):
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def __init__(self, message_id: int) -> None:
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self.message_id = message_id
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class InvitationError(JsonableError):
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code = ErrorCode.INVITATION_FAILED
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data_fields = [
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"errors",
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"sent_invitations",
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"license_limit_reached",
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"daily_limit_reached",
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]
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def __init__(
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self,
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msg: str,
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errors: List[Tuple[str, str, bool]],
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sent_invitations: bool,
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license_limit_reached: bool = False,
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daily_limit_reached: bool = False,
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) -> None:
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self._msg: str = msg
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self.errors: List[Tuple[str, str, bool]] = errors
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self.sent_invitations: bool = sent_invitations
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self.license_limit_reached: bool = license_limit_reached
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self.daily_limit_reached: bool = daily_limit_reached
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class DirectMessageInitiationError(JsonableError):
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("You do not have permission to initiate direct message conversations.")
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class DirectMessagePermissionError(JsonableError):
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def __init__(self, is_nobody_group: bool) -> None:
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if is_nobody_group:
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msg = _("Direct messages are disabled in this organization.")
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else:
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msg = _("You do not have permission to send direct messages to this recipient.")
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super().__init__(msg)
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class AccessDeniedError(JsonableError):
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http_status_code = 403
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def __init__(self) -> None:
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pass
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@staticmethod
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@override
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def msg_format() -> str:
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return _("Access denied")
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class ResourceNotFoundError(JsonableError):
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http_status_code = 404
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class ValidationFailureError(JsonableError):
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# This class translations a Django ValidationError into a
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# Zulip-style JsonableError, sending back just the first error for
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# consistency of API.
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data_fields = ["errors"]
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def __init__(self, error: ValidationError) -> None:
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super().__init__(error.messages[0])
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self.errors = error.message_dict
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class MessageMoveError(JsonableError):
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|
code = ErrorCode.MOVE_MESSAGES_TIME_LIMIT_EXCEEDED
|
|
data_fields = [
|
|
"first_message_id_allowed_to_move",
|
|
"total_messages_in_topic",
|
|
"total_messages_allowed_to_move",
|
|
]
|
|
|
|
def __init__(
|
|
self,
|
|
first_message_id_allowed_to_move: int,
|
|
total_messages_in_topic: int,
|
|
total_messages_allowed_to_move: int,
|
|
) -> None:
|
|
self.first_message_id_allowed_to_move = first_message_id_allowed_to_move
|
|
self.total_messages_in_topic = total_messages_in_topic
|
|
self.total_messages_allowed_to_move = total_messages_allowed_to_move
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _(
|
|
"You only have permission to move the {total_messages_allowed_to_move}/{total_messages_in_topic} most recent messages in this topic."
|
|
)
|
|
|
|
|
|
class ReactionExistsError(JsonableError):
|
|
code = ErrorCode.REACTION_ALREADY_EXISTS
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("Reaction already exists.")
|
|
|
|
|
|
class ReactionDoesNotExistError(JsonableError):
|
|
code = ErrorCode.REACTION_DOES_NOT_EXIST
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("Reaction doesn't exist.")
|
|
|
|
|
|
class ApiParamValidationError(JsonableError):
|
|
def __init__(self, msg: str, error_type: str) -> None:
|
|
super().__init__(msg)
|
|
self.error_type = error_type
|
|
|
|
|
|
class ServerNotReadyError(JsonableError):
|
|
code = ErrorCode.SERVER_NOT_READY
|
|
http_status_code = 500
|
|
|
|
|
|
class RemoteRealmServerMismatchError(JsonableError): # nocoverage
|
|
code = ErrorCode.REMOTE_REALM_SERVER_MISMATCH_ERROR
|
|
http_status_code = 403
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _(
|
|
"Your organization is registered to a different Zulip server. Please contact Zulip support for assistance in resolving this issue."
|
|
)
|
|
|
|
|
|
class MissingRemoteRealmError(JsonableError): # nocoverage
|
|
code: ErrorCode = ErrorCode.MISSING_REMOTE_REALM
|
|
http_status_code = 403
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("Organization not registered")
|
|
|
|
|
|
class StreamWildcardMentionNotAllowedError(JsonableError):
|
|
code: ErrorCode = ErrorCode.STREAM_WILDCARD_MENTION_NOT_ALLOWED
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("You do not have permission to use channel wildcard mentions in this channel.")
|
|
|
|
|
|
class TopicWildcardMentionNotAllowedError(JsonableError):
|
|
code: ErrorCode = ErrorCode.TOPIC_WILDCARD_MENTION_NOT_ALLOWED
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("You do not have permission to use topic wildcard mentions in this topic.")
|
|
|
|
|
|
class PreviousSettingValueMismatchedError(JsonableError):
|
|
code: ErrorCode = ErrorCode.EXPECTATION_MISMATCH
|
|
|
|
def __init__(self) -> None:
|
|
pass
|
|
|
|
@staticmethod
|
|
@override
|
|
def msg_format() -> str:
|
|
return _("'old' value does not match the expected value.")
|