161 lines
4.8 KiB
Python
161 lines
4.8 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright 2014 OpenMarket Ltd
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""Contains exceptions and error codes."""
|
|
|
|
import logging
|
|
|
|
|
|
class Codes(object):
|
|
UNAUTHORIZED = "M_UNAUTHORIZED"
|
|
FORBIDDEN = "M_FORBIDDEN"
|
|
BAD_JSON = "M_BAD_JSON"
|
|
NOT_JSON = "M_NOT_JSON"
|
|
USER_IN_USE = "M_USER_IN_USE"
|
|
ROOM_IN_USE = "M_ROOM_IN_USE"
|
|
BAD_PAGINATION = "M_BAD_PAGINATION"
|
|
UNKNOWN = "M_UNKNOWN"
|
|
NOT_FOUND = "M_NOT_FOUND"
|
|
UNKNOWN_TOKEN = "M_UNKNOWN_TOKEN"
|
|
LIMIT_EXCEEDED = "M_LIMIT_EXCEEDED"
|
|
CAPTCHA_NEEDED = "M_CAPTCHA_NEEDED"
|
|
CAPTCHA_INVALID = "M_CAPTCHA_INVALID"
|
|
|
|
|
|
class CodeMessageException(Exception):
|
|
"""An exception with integer code and message string attributes."""
|
|
|
|
def __init__(self, code, msg):
|
|
logging.error("%s: %s, %s", type(self).__name__, code, msg)
|
|
super(CodeMessageException, self).__init__("%d: %s" % (code, msg))
|
|
self.code = code
|
|
self.msg = msg
|
|
self.response_code_message = None
|
|
|
|
def error_dict(self):
|
|
return cs_error(self.msg)
|
|
|
|
|
|
class SynapseError(CodeMessageException):
|
|
"""A base error which can be caught for all synapse events."""
|
|
def __init__(self, code, msg, errcode=Codes.UNKNOWN):
|
|
"""Constructs a synapse error.
|
|
|
|
Args:
|
|
code (int): The integer error code (an HTTP response code)
|
|
msg (str): The human-readable error message.
|
|
err (str): The error code e.g 'M_FORBIDDEN'
|
|
"""
|
|
super(SynapseError, self).__init__(code, msg)
|
|
self.errcode = errcode
|
|
|
|
def error_dict(self):
|
|
return cs_error(
|
|
self.msg,
|
|
self.errcode,
|
|
)
|
|
|
|
|
|
class RoomError(SynapseError):
|
|
"""An error raised when a room event fails."""
|
|
pass
|
|
|
|
|
|
class RegistrationError(SynapseError):
|
|
"""An error raised when a registration event fails."""
|
|
pass
|
|
|
|
|
|
class AuthError(SynapseError):
|
|
"""An error raised when there was a problem authorising an event."""
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
if "errcode" not in kwargs:
|
|
kwargs["errcode"] = Codes.FORBIDDEN
|
|
super(AuthError, self).__init__(*args, **kwargs)
|
|
|
|
|
|
class EventStreamError(SynapseError):
|
|
"""An error raised when there a problem with the event stream."""
|
|
def __init__(self, *args, **kwargs):
|
|
if "errcode" not in kwargs:
|
|
kwargs["errcode"] = Codes.BAD_PAGINATION
|
|
super(EventStreamError, self).__init__(*args, **kwargs)
|
|
|
|
|
|
class LoginError(SynapseError):
|
|
"""An error raised when there was a problem logging in."""
|
|
pass
|
|
|
|
|
|
class StoreError(SynapseError):
|
|
"""An error raised when there was a problem storing some data."""
|
|
pass
|
|
|
|
|
|
class InvalidCaptchaError(SynapseError):
|
|
def __init__(self, code=400, msg="Invalid captcha.", error_url=None,
|
|
errcode=Codes.CAPTCHA_INVALID):
|
|
super(InvalidCaptchaError, self).__init__(code, msg, errcode)
|
|
self.error_url = error_url
|
|
|
|
def error_dict(self):
|
|
return cs_error(
|
|
self.msg,
|
|
self.errcode,
|
|
error_url=self.error_url,
|
|
)
|
|
|
|
|
|
class LimitExceededError(SynapseError):
|
|
"""A client has sent too many requests and is being throttled.
|
|
"""
|
|
def __init__(self, code=429, msg="Too Many Requests", retry_after_ms=None,
|
|
errcode=Codes.LIMIT_EXCEEDED):
|
|
super(LimitExceededError, self).__init__(code, msg, errcode)
|
|
self.retry_after_ms = retry_after_ms
|
|
self.response_code_message = "Too Many Requests"
|
|
|
|
def error_dict(self):
|
|
return cs_error(
|
|
self.msg,
|
|
self.errcode,
|
|
retry_after_ms=self.retry_after_ms,
|
|
)
|
|
|
|
|
|
def cs_exception(exception):
|
|
if isinstance(exception, CodeMessageException):
|
|
return exception.error_dict()
|
|
else:
|
|
logging.error("Unknown exception type: %s", type(exception))
|
|
|
|
|
|
def cs_error(msg, code=Codes.UNKNOWN, **kwargs):
|
|
""" Utility method for constructing an error response for client-server
|
|
interactions.
|
|
|
|
Args:
|
|
msg (str): The error message.
|
|
code (int): The error code.
|
|
kwargs : Additional keys to add to the response.
|
|
Returns:
|
|
A dict representing the error response JSON.
|
|
"""
|
|
err = {"error": msg, "errcode": code}
|
|
for key, value in kwargs.iteritems():
|
|
err[key] = value
|
|
return err
|