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exceptions.py
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# RhodeCode VCSServer provides access to different vcs backends via network.
# Copyright (C) 2014-2020 RhodeCode GmbH
#
# 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, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""
Special exception handling over the wire.
Since we cannot assume that our client is able to import our exception classes,
this module provides a "wrapping" mechanism to raise plain exceptions
which contain an extra attribute `_vcs_kind` to allow a client to distinguish
different error conditions.
"""
from pyramid.httpexceptions import HTTPLocked, HTTPForbidden
def _make_exception(kind, org_exc, *args):
"""
Prepares a base `Exception` instance to be sent over the wire.
To give our caller a hint what this is about, it will attach an attribute
`_vcs_kind` to the exception.
"""
exc = Exception(*args)
exc._vcs_kind = kind
exc._org_exc = org_exc
exc._org_exc_tb = getattr(org_exc, '_org_exc_tb', '')
return exc
def AbortException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('abort', org_exc, *args)
return _make_exception_wrapper
def ArchiveException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('archive', org_exc, *args)
return _make_exception_wrapper
def LookupException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('lookup', org_exc, *args)
return _make_exception_wrapper
def VcsException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('error', org_exc, *args)
return _make_exception_wrapper
def RepositoryLockedException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('repo_locked', org_exc, *args)
return _make_exception_wrapper
def RepositoryBranchProtectedException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('repo_branch_protected', org_exc, *args)
return _make_exception_wrapper
def RequirementException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('requirement', org_exc, *args)
return _make_exception_wrapper
def UnhandledException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('unhandled', org_exc, *args)
return _make_exception_wrapper
def URLError(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('url_error', org_exc, *args)
return _make_exception_wrapper
def SubrepoMergeException(org_exc=None):
def _make_exception_wrapper(*args):
return _make_exception('subrepo_merge_error', org_exc, *args)
return _make_exception_wrapper
class HTTPRepoLocked(HTTPLocked):
"""
Subclass of HTTPLocked response that allows to set the title and status
code via constructor arguments.
"""
def __init__(self, title, status_code=None, **kwargs):
self.code = status_code or HTTPLocked.code
self.title = title
super(HTTPRepoLocked, self).__init__(**kwargs)
class HTTPRepoBranchProtected(HTTPForbidden):
def __init__(self, *args, **kwargs):
super(HTTPForbidden, self).__init__(*args, **kwargs)
class RefNotFoundException(KeyError):
pass