upgrade: fixed old style rc upgrade sometimes used with a very old installer.
upgrade: fixed old style rc upgrade sometimes used with a very old installer.

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r3363:f08e98b1 default
r3505:c75dd264 stable
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exc_tracking.py
166 lines | 5.0 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
# Copyright (C) 2010-2019 RhodeCode GmbH
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License, version 3
# (only), as published by the Free Software Foundation.
#
# 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 Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# This program is dual-licensed. If you wish to learn more about the
# RhodeCode Enterprise Edition, including its added features, Support services,
# and proprietary license terms, please see https://rhodecode.com/licenses/
import os
import time
import datetime
import msgpack
import logging
import traceback
import tempfile
log = logging.getLogger(__name__)
# NOTE: Any changes should be synced with exc_tracking at vcsserver.lib.exc_tracking
global_prefix = 'rhodecode'
exc_store_dir_name = 'rc_exception_store_v1'
def exc_serialize(exc_id, tb, exc_type):
data = {
'version': 'v1',
'exc_id': exc_id,
'exc_utc_date': datetime.datetime.utcnow().isoformat(),
'exc_timestamp': repr(time.time()),
'exc_message': tb,
'exc_type': exc_type,
}
return msgpack.packb(data), data
def exc_unserialize(tb):
return msgpack.unpackb(tb)
def get_exc_store():
"""
Get and create exception store if it's not existing
"""
import rhodecode as app
exc_store_dir = app.CONFIG.get('exception_tracker.store_path', '') or tempfile.gettempdir()
_exc_store_path = os.path.join(exc_store_dir, exc_store_dir_name)
_exc_store_path = os.path.abspath(_exc_store_path)
if not os.path.isdir(_exc_store_path):
os.makedirs(_exc_store_path)
log.debug('Initializing exceptions store at %s', _exc_store_path)
return _exc_store_path
def _store_exception(exc_id, exc_type_name, exc_traceback, prefix):
"""
Low level function to store exception in the exception tracker
"""
exc_store_path = get_exc_store()
exc_data, org_data = exc_serialize(exc_id, exc_traceback, exc_type_name)
exc_pref_id = '{}_{}_{}'.format(exc_id, prefix, org_data['exc_timestamp'])
if not os.path.isdir(exc_store_path):
os.makedirs(exc_store_path)
stored_exc_path = os.path.join(exc_store_path, exc_pref_id)
with open(stored_exc_path, 'wb') as f:
f.write(exc_data)
log.debug('Stored generated exception %s as: %s', exc_id, stored_exc_path)
def _prepare_exception(exc_info):
exc_type, exc_value, exc_traceback = exc_info
exc_type_name = exc_type.__name__
tb = ''.join(traceback.format_exception(
exc_type, exc_value, exc_traceback, None))
return exc_type_name, tb
def store_exception(exc_id, exc_info, prefix=global_prefix):
"""
Example usage::
exc_info = sys.exc_info()
store_exception(id(exc_info), exc_info)
"""
try:
exc_type_name, exc_traceback = _prepare_exception(exc_info)
_store_exception(exc_id=exc_id, exc_type_name=exc_type_name,
exc_traceback=exc_traceback, prefix=prefix)
except Exception:
log.exception('Failed to store exception `%s` information', exc_id)
# there's no way this can fail, it will crash server badly if it does.
pass
def _find_exc_file(exc_id, prefix=global_prefix):
exc_store_path = get_exc_store()
if prefix:
exc_id = '{}_{}'.format(exc_id, prefix)
else:
# search without a prefix
exc_id = '{}'.format(exc_id)
# we need to search the store for such start pattern as above
for fname in os.listdir(exc_store_path):
if fname.startswith(exc_id):
exc_id = os.path.join(exc_store_path, fname)
break
continue
else:
exc_id = None
return exc_id
def _read_exception(exc_id, prefix):
exc_id_file_path = _find_exc_file(exc_id=exc_id, prefix=prefix)
if exc_id_file_path:
with open(exc_id_file_path, 'rb') as f:
return exc_unserialize(f.read())
else:
log.debug('Exception File `%s` not found', exc_id_file_path)
return None
def read_exception(exc_id, prefix=global_prefix):
try:
return _read_exception(exc_id=exc_id, prefix=prefix)
except Exception:
log.exception('Failed to read exception `%s` information', exc_id)
# there's no way this can fail, it will crash server badly if it does.
return None
def delete_exception(exc_id, prefix=global_prefix):
try:
exc_id_file_path = _find_exc_file(exc_id, prefix=prefix)
if exc_id_file_path:
os.remove(exc_id_file_path)
except Exception:
log.exception('Failed to remove exception `%s` information', exc_id)
# there's no way this can fail, it will crash server badly if it does.
pass
def generate_id():
return id(object())