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"""
raven.contrib.awslambda
~~~~~~~~~~~~~~~~~~~~
Raven wrapper for AWS Lambda handlers.
:copyright: (c) 2010-2012 by the Sentry Team, see AUTHORS for more details.
:license: BSD, see LICENSE for more details.
"""
# flake8: noqa
from __future__ import absolute_import
import os
import logging
import functools
from types import FunctionType
from raven.base import Client
from raven.transport.http import HTTPTransport
logger = logging.getLogger('sentry.errors.client')
def get_default_tags():
return {
'lambda': 'AWS_LAMBDA_FUNCTION_NAME',
'version': 'AWS_LAMBDA_FUNCTION_VERSION',
'memory_size': 'AWS_LAMBDA_FUNCTION_MEMORY_SIZE',
'log_group': 'AWS_LAMBDA_LOG_GROUP_NAME',
'log_stream': 'AWS_LAMBDA_LOG_STREAM_NAME',
'region': 'AWS_REGION'
}
class LambdaClient(Client):
"""
Raven decorator for AWS Lambda.
By default, the lambda integration will capture unhandled exceptions and instrument logging.
Usage:
>>> from raven.contrib.awslambda import LambdaClient
>>>
>>>
>>> client = LambdaClient()
>>>
>>> @client.capture_exceptions
>>> def handler(event, context):
>>> ...
>>> raise Exception('I will be sent to sentry!')
"""
def __init__(self, *args, **kwargs):
transport = kwargs.get('transport', HTTPTransport)
super(LambdaClient, self).__init__(*args, transport=transport, **kwargs)
def capture(self, *args, **kwargs):
if 'data' not in kwargs:
kwargs['data'] = data = {}
else:
data = kwargs['data']
event = kwargs.get('event', None)
context = kwargs.get('context', None)
user_info = self._get_user_interface(event)
if user_info:
data.update(user_info)
if event:
http_info = self._get_http_interface(event)
if http_info:
data.update(http_info)
data['extra'] = self._get_extra_data(event, context)
return super(LambdaClient, self).capture(*args, **kwargs)
def build_msg(self, *args, **kwargs):
data = super(LambdaClient, self).build_msg(*args, **kwargs)
for option, default in get_default_tags().items():
data['tags'].setdefault(option, os.environ.get(default))
data.setdefault('release', os.environ.get('SENTRY_RELEASE'))
data.setdefault('environment', os.environ.get('SENTRY_ENVIRONMENT'))
return data
def capture_exceptions(self, f=None, exceptions=None): # TODO: Ash fix kwargs in base
"""
Wrap a function or code block in try/except and automatically call
``.captureException`` if it raises an exception, then the exception
is reraised.
By default, it will capture ``Exception``
>>> @client.capture_exceptions
>>> def foo():
>>> raise Exception()
>>> with client.capture_exceptions():
>>> raise Exception()
You can also specify exceptions to be caught specifically
>>> @client.capture_exceptions((IOError, LookupError))
>>> def bar():
>>> ...
``kwargs`` are passed through to ``.captureException``.
"""
if not isinstance(f, FunctionType):
# when the decorator has args which is not a function we except
# f to be the exceptions tuple
return functools.partial(self.capture_exceptions, exceptions=f)
exceptions = exceptions or (Exception,)
@functools.wraps(f)
def wrapped(event, context, *args, **kwargs):
try:
return f(event, context, *args, **kwargs)
except exceptions:
self.captureException(event=event, context=context, **kwargs)
self.context.clear()
raise
return wrapped
@staticmethod
def _get_user_interface(event):
if event.get('requestContext'):
identity = event['requestContext']['identity']
if identity:
user = {
'id': identity.get('cognitoIdentityId', None) or identity.get('user', None),
'username': identity.get('user', None),
'ip_address': identity.get('sourceIp', None),
'cognito_identity_pool_id': identity.get('cognitoIdentityPoolId', None),
'cognito_authentication_type': identity.get('cognitoAuthenticationType', None),
'user_agent': identity.get('userAgent')
}
return {'user': user}
@staticmethod
def _get_http_interface(event):
if event.get('path') and event.get('httpMethod'):
request = {
"url": event.get('path'),
"method": event.get('httpMethod'),
"query_string": event.get('queryStringParameters', None),
"headers": event.get('headers', None) or [],
}
return {'request': request}
@staticmethod
def _get_extra_data(event, context):
extra_context = {
'event': event,
'aws_request_id': context.aws_request_id,
'context': vars(context),
}
if context.client_context:
extra_context['client_context'] = {
'client.installation_id': context.client_context.client.installation_id,
'client.app_title': context.client_context.client.app_title,
'client.app_version_name': context.client_context.client.app_version_name,
'client.app_version_code': context.client_context.client.app_version_code,
'client.app_package_name': context.client_context.client.app_package_name,
'custom': context.client_context.custom,
'env': context.client_context.env,
}
return extra_context
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