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"""
raven.core.processors
~~~~~~~~~~~~~~~~~~~~~
:copyright: (c) 2010-2012 by the Sentry Team, see AUTHORS for more details.
:license: BSD, see LICENSE for more details.
"""
from __future__ import absolute_import
import re
import warnings
from raven.utils.compat import string_types, text_type, PY3
from raven.utils import varmap
class Processor(object):
def __init__(self, client):
self.client = client
def get_data(self, data, **kwargs):
return
def process(self, data, **kwargs):
resp = self.get_data(data, **kwargs)
if resp:
data = resp
if 'exception' in data:
if 'values' in data['exception']:
for value in data['exception'].get('values', []):
if 'stacktrace' in value:
self.filter_stacktrace(value['stacktrace'])
if 'request' in data:
self.filter_http(data['request'])
if 'extra' in data:
data['extra'] = self.filter_extra(data['extra'])
return data
def filter_stacktrace(self, data):
pass
def filter_http(self, data):
pass
def filter_extra(self, data):
return data
class RemovePostDataProcessor(Processor):
"""Removes HTTP post data."""
def filter_http(self, data, **kwargs):
data.pop('data', None)
class RemoveStackLocalsProcessor(Processor):
"""Removes local context variables from stacktraces."""
def filter_stacktrace(self, data, **kwargs):
for frame in data.get('frames', []):
frame.pop('vars', None)
class SanitizeKeysProcessor(Processor):
"""
Asterisk out things that correspond to a configurable set of keys.
"""
MASK = '*' * 8
@property
def sanitize_keys(self):
keys = getattr(self.client, 'sanitize_keys')
if keys is None:
raise ValueError('The sanitize_keys setting must be present to use SanitizeKeysProcessor')
return keys
def sanitize(self, item, value):
if value is None:
return
if not item: # key can be a NoneType
return value
# Just in case we have bytes here, we want to make them into text
# properly without failing so we can perform our check.
if isinstance(item, bytes):
item = item.decode('utf-8', 'replace')
else:
item = text_type(item)
item = item.lower()
for key in self.sanitize_keys:
if key in item:
# store mask as a fixed length for security
return self.MASK
return value
def filter_stacktrace(self, data):
for frame in data.get('frames', []):
if 'vars' not in frame:
continue
frame['vars'] = varmap(self.sanitize, frame['vars'])
def filter_http(self, data):
for n in ('data', 'cookies', 'headers', 'env', 'query_string'):
if n not in data:
continue
# data could be provided as bytes
if PY3 and isinstance(data[n], bytes):
data[n] = data[n].decode('utf-8', 'replace')
if isinstance(data[n], string_types) and '=' in data[n]:
# at this point we've assumed it's a standard HTTP query
# or cookie
if n == 'cookies':
delimiter = ';'
else:
delimiter = '&'
data[n] = self._sanitize_keyvals(data[n], delimiter)
else:
data[n] = varmap(self.sanitize, data[n])
if n == 'headers' and 'Cookie' in data[n]:
data[n]['Cookie'] = self._sanitize_keyvals(
data[n]['Cookie'], ';'
)
def filter_extra(self, data):
return varmap(self.sanitize, data)
def _sanitize_keyvals(self, keyvals, delimiter):
sanitized_keyvals = []
for keyval in keyvals.split(delimiter):
keyval = keyval.split('=')
if len(keyval) == 2:
sanitized_keyvals.append((keyval[0], self.sanitize(*keyval)))
else:
sanitized_keyvals.append(keyval)
return delimiter.join('='.join(keyval) for keyval in sanitized_keyvals)
class SanitizePasswordsProcessor(SanitizeKeysProcessor):
"""
Asterisk out things that look like passwords, credit card numbers,
and API keys in frames, http, and basic extra data.
"""
KEYS = frozenset([
'password',
'secret',
'passwd',
'authorization',
'api_key',
'apikey',
'sentry_dsn',
'access_token',
])
VALUES_RE = re.compile(r'^(?:\d[ -]*?){13,16}$')
@property
def sanitize_keys(self):
return self.KEYS
@property
def FIELDS(self):
warnings.warn(
"`SanitizePasswordsProcessor.Fields` has been deprecated. Use "
"`SanitizePasswordsProcessor.KEYS` or `SanitizePasswordsProcessor.sanitize_keys` "
"instead",
DeprecationWarning,
)
return self.KEYS
def sanitize(self, item, value):
value = super(SanitizePasswordsProcessor, self).sanitize(item, value)
if isinstance(value, string_types) and self.VALUES_RE.match(value):
return self.MASK
return value