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# -*- coding: utf-8 -*-
# errors.py
# Copyright (C) 2015 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from leap.soledad.common.errors import SoledadError, BackendNotReadyError
from leap.soledad.common.errors import register_exception
"""
Specific errors that can be raised by CouchDatabase.
"""
@register_exception
class MissingDesignDocError(BackendNotReadyError):
"""
Raised when trying to access a missing couch design document.
"""
wire_description = "missing design document"
status = 500
@register_exception
class MissingDesignDocNamedViewError(SoledadError):
"""
Raised when trying to access a missing named view on a couch design
document.
"""
wire_description = "missing design document named function"
status = 500
@register_exception
class MissingDesignDocListFunctionError(SoledadError):
"""
Raised when trying to access a missing list function on a couch design
document.
"""
wire_description = "missing design document list function"
status = 500
@register_exception
class MissingDesignDocDeletedError(SoledadError):
"""
Raised when trying to access a deleted couch design document.
"""
wire_description = "design document was deleted"
status = 500
@register_exception
class DesignDocUnknownError(SoledadError):
"""
Raised when trying to access a couch design document and getting an
unknown error.
"""
wire_description = "missing design document unknown error"
status = 500
def raise_missing_design_doc_error(exc, ddoc_path):
"""
Raise an appropriate exception when catching a ResourceNotFound when
accessing a design document.
:param exc: The exception cought.
:type exc: ResourceNotFound
:param ddoc_path: A list representing the requested path.
:type ddoc_path: list
:raise MissingDesignDocError: Raised when tried to access a missing design
document.
:raise MissingDesignDocListFunctionError: Raised when trying to access a
missing list function on a
design document.
:raise MissingDesignDocNamedViewError: Raised when trying to access a
missing named view on a design
document.
:raise MissingDesignDocDeletedError: Raised when trying to access a
deleted design document.
:raise MissingDesignDocUnknownError: Raised when failed to access a design
document for an yet unknown reason.
"""
path = "".join(ddoc_path)
if exc.message[1] == 'missing':
raise MissingDesignDocError(path)
elif exc.message[1] == 'missing function' or \
exc.message[1].startswith('missing lists function'):
raise MissingDesignDocListFunctionError(path)
elif exc.message[1] == 'missing_named_view':
raise MissingDesignDocNamedViewError(path)
elif exc.message[1] == 'deleted':
raise MissingDesignDocDeletedError(path)
# other errors are unknown for now
raise DesignDocUnknownError("%s: %s" % (path, str(exc.message)))
def raise_server_error(exc, ddoc_path):
"""
Raise an appropriate exception when catching a ServerError when
accessing a design document.
:param exc: The exception cought.
:type exc: ResourceNotFound
:param ddoc_path: A list representing the requested path.
:type ddoc_path: list
:raise MissingDesignDocListFunctionError: Raised when trying to access a
missing list function on a
design document.
:raise MissingDesignDocUnknownError: Raised when failed to access a design
document for an yet unknown reason.
"""
path = "".join(ddoc_path)
msg = exc.message[1][0]
if msg == 'unnamed_error':
raise MissingDesignDocListFunctionError(path)
elif msg == 'TypeError':
if 'point is undefined' in exc.message[1][1]:
raise MissingDesignDocListFunctionError
# other errors are unknown for now
raise DesignDocUnknownError("%s: %s" % (path, str(exc.message)))
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