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from datetime import datetime, timedelta
from os import environ
import sys
from sentry_sdk.hub import Hub, _should_send_default_pii
from sentry_sdk._compat import reraise
from sentry_sdk.utils import (
AnnotatedValue,
capture_internal_exceptions,
event_from_exception,
logger,
)
from sentry_sdk.integrations import Integration
from sentry_sdk.integrations._wsgi_common import _filter_headers
from sentry_sdk._types import MYPY
if MYPY:
from typing import Any
from typing import TypeVar
from typing import Callable
from typing import Optional
from sentry_sdk._types import EventProcessor, Event, Hint
F = TypeVar("F", bound=Callable[..., Any])
def _wrap_handler(handler):
# type: (F) -> F
def sentry_handler(event, context, *args, **kwargs):
# type: (Any, Any, *Any, **Any) -> Any
hub = Hub.current
integration = hub.get_integration(AwsLambdaIntegration)
if integration is None:
return handler(event, context, *args, **kwargs)
# If an integration is there, a client has to be there.
client = hub.client # type: Any
with hub.push_scope() as scope:
with capture_internal_exceptions():
scope.clear_breadcrumbs()
scope.transaction = context.function_name
scope.add_event_processor(_make_request_event_processor(event, context))
try:
return handler(event, context, *args, **kwargs)
except Exception:
exc_info = sys.exc_info()
event, hint = event_from_exception(
exc_info,
client_options=client.options,
mechanism={"type": "aws_lambda", "handled": False},
)
hub.capture_event(event, hint=hint)
reraise(*exc_info)
return sentry_handler # type: ignore
def _drain_queue():
# type: () -> None
with capture_internal_exceptions():
hub = Hub.current
integration = hub.get_integration(AwsLambdaIntegration)
if integration is not None:
# Flush out the event queue before AWS kills the
# process.
hub.flush()
class AwsLambdaIntegration(Integration):
identifier = "aws_lambda"
@staticmethod
def setup_once():
# type: () -> None
import __main__ as lambda_bootstrap # type: ignore
pre_37 = True # Python 3.6 or 2.7
if not hasattr(lambda_bootstrap, "handle_http_request"):
try:
import bootstrap as lambda_bootstrap # type: ignore
pre_37 = False # Python 3.7
except ImportError:
pass
if not hasattr(lambda_bootstrap, "handle_event_request"):
logger.warning(
"Not running in AWS Lambda environment, "
"AwsLambdaIntegration disabled"
)
return
if pre_37:
old_handle_event_request = lambda_bootstrap.handle_event_request
def sentry_handle_event_request(request_handler, *args, **kwargs):
# type: (Any, *Any, **Any) -> Any
request_handler = _wrap_handler(request_handler)
return old_handle_event_request(request_handler, *args, **kwargs)
lambda_bootstrap.handle_event_request = sentry_handle_event_request
old_handle_http_request = lambda_bootstrap.handle_http_request
def sentry_handle_http_request(request_handler, *args, **kwargs):
# type: (Any, *Any, **Any) -> Any
request_handler = _wrap_handler(request_handler)
return old_handle_http_request(request_handler, *args, **kwargs)
lambda_bootstrap.handle_http_request = sentry_handle_http_request
# Patch to_json to drain the queue. This should work even when the
# SDK is initialized inside of the handler
old_to_json = lambda_bootstrap.to_json
def sentry_to_json(*args, **kwargs):
# type: (*Any, **Any) -> Any
_drain_queue()
return old_to_json(*args, **kwargs)
lambda_bootstrap.to_json = sentry_to_json
else:
old_handle_event_request = lambda_bootstrap.handle_event_request
def sentry_handle_event_request( # type: ignore
lambda_runtime_client, request_handler, *args, **kwargs
):
request_handler = _wrap_handler(request_handler)
return old_handle_event_request(
lambda_runtime_client, request_handler, *args, **kwargs
)
lambda_bootstrap.handle_event_request = sentry_handle_event_request
# Patch the runtime client to drain the queue. This should work
# even when the SDK is initialized inside of the handler
def _wrap_post_function(f):
# type: (F) -> F
def inner(*args, **kwargs):
# type: (*Any, **Any) -> Any
_drain_queue()
return f(*args, **kwargs)
return inner # type: ignore
lambda_bootstrap.LambdaRuntimeClient.post_invocation_result = _wrap_post_function(
lambda_bootstrap.LambdaRuntimeClient.post_invocation_result
)
lambda_bootstrap.LambdaRuntimeClient.post_invocation_error = _wrap_post_function(
lambda_bootstrap.LambdaRuntimeClient.post_invocation_error
)
def _make_request_event_processor(aws_event, aws_context):
# type: (Any, Any) -> EventProcessor
start_time = datetime.now()
def event_processor(event, hint, start_time=start_time):
# type: (Event, Hint, datetime) -> Optional[Event]
extra = event.setdefault("extra", {})
extra["lambda"] = {
"function_name": aws_context.function_name,
"function_version": aws_context.function_version,
"invoked_function_arn": aws_context.invoked_function_arn,
"remaining_time_in_millis": aws_context.get_remaining_time_in_millis(),
"aws_request_id": aws_context.aws_request_id,
}
extra["cloudwatch logs"] = {
"url": _get_cloudwatch_logs_url(aws_context, start_time),
"log_group": aws_context.log_group_name,
"log_stream": aws_context.log_stream_name,
}
request = event.get("request", {})
if "httpMethod" in aws_event:
request["method"] = aws_event["httpMethod"]
request["url"] = _get_url(aws_event, aws_context)
if "queryStringParameters" in aws_event:
request["query_string"] = aws_event["queryStringParameters"]
if "headers" in aws_event:
request["headers"] = _filter_headers(aws_event["headers"])
if aws_event.get("body", None):
# Unfortunately couldn't find a way to get structured body from AWS
# event. Meaning every body is unstructured to us.
request["data"] = AnnotatedValue("", {"rem": [["!raw", "x", 0, 0]]})
if _should_send_default_pii():
user_info = event.setdefault("user", {})
id = aws_event.get("identity", {}).get("userArn")
if id is not None:
user_info.setdefault("id", id)
ip = aws_event.get("identity", {}).get("sourceIp")
if ip is not None:
user_info.setdefault("ip_address", ip)
event["request"] = request
return event
return event_processor
def _get_url(event, context):
# type: (Any, Any) -> str
path = event.get("path", None)
headers = event.get("headers", {})
host = headers.get("Host", None)
proto = headers.get("X-Forwarded-Proto", None)
if proto and host and path:
return "{}://{}{}".format(proto, host, path)
return "awslambda:///{}".format(context.function_name)
def _get_cloudwatch_logs_url(context, start_time):
# type: (Any, datetime) -> str
"""
Generates a CloudWatchLogs console URL based on the context object
Arguments:
context {Any} -- context from lambda handler
Returns:
str -- AWS Console URL to logs.
"""
formatstring = "%Y-%m-%dT%H:%M:%S"
url = (
"https://console.aws.amazon.com/cloudwatch/home?region={region}"
"#logEventViewer:group={log_group};stream={log_stream}"
";start={start_time};end={end_time}"
).format(
region=environ.get("AWS_REGION"),
log_group=context.log_group_name,
log_stream=context.log_stream_name,
start_time=(start_time - timedelta(seconds=1)).strftime(formatstring),
end_time=(datetime.now() + timedelta(seconds=2)).strftime(formatstring),
)
return url
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