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import os
import uuid
import random
from datetime import datetime
import socket
from sentry_sdk._compat import string_types, text_type, iteritems
from sentry_sdk.utils import (
capture_internal_exceptions,
current_stacktrace,
disable_capture_event,
format_timestamp,
get_type_name,
get_default_release,
handle_in_app,
logger,
)
from sentry_sdk.serializer import serialize
from sentry_sdk.transport import make_transport
from sentry_sdk.consts import DEFAULT_OPTIONS, SDK_INFO, ClientConstructor
from sentry_sdk.integrations import setup_integrations
from sentry_sdk.utils import ContextVar
from sentry_sdk.sessions import SessionFlusher
from sentry_sdk.envelope import Envelope
from sentry_sdk.tracing_utils import has_tracestate_enabled, reinflate_tracestate
from sentry_sdk._types import MYPY
if MYPY:
from typing import Any
from typing import Callable
from typing import Dict
from typing import Optional
from sentry_sdk.scope import Scope
from sentry_sdk._types import Event, Hint
from sentry_sdk.session import Session
_client_init_debug = ContextVar("client_init_debug")
def _get_options(*args, **kwargs):
# type: (*Optional[str], **Any) -> Dict[str, Any]
if args and (isinstance(args[0], (text_type, bytes, str)) or args[0] is None):
dsn = args[0] # type: Optional[str]
args = args[1:]
else:
dsn = None
if len(args) > 1:
raise TypeError("Only single positional argument is expected")
rv = dict(DEFAULT_OPTIONS)
options = dict(*args, **kwargs)
if dsn is not None and options.get("dsn") is None:
options["dsn"] = dsn
for key, value in iteritems(options):
if key not in rv:
raise TypeError("Unknown option %r" % (key,))
rv[key] = value
if rv["dsn"] is None:
rv["dsn"] = os.environ.get("SENTRY_DSN")
if rv["release"] is None:
rv["release"] = get_default_release()
if rv["environment"] is None:
rv["environment"] = os.environ.get("SENTRY_ENVIRONMENT") or "production"
if rv["server_name"] is None and hasattr(socket, "gethostname"):
rv["server_name"] = socket.gethostname()
return rv
class _Client(object):
"""The client is internally responsible for capturing the events and
forwarding them to sentry through the configured transport. It takes
the client options as keyword arguments and optionally the DSN as first
argument.
"""
def __init__(self, *args, **kwargs):
# type: (*Any, **Any) -> None
self.options = get_options(*args, **kwargs) # type: Dict[str, Any]
self._init_impl()
def __getstate__(self):
# type: () -> Any
return {"options": self.options}
def __setstate__(self, state):
# type: (Any) -> None
self.options = state["options"]
self._init_impl()
def _init_impl(self):
# type: () -> None
old_debug = _client_init_debug.get(False)
def _capture_envelope(envelope):
# type: (Envelope) -> None
if self.transport is not None:
self.transport.capture_envelope(envelope)
try:
_client_init_debug.set(self.options["debug"])
self.transport = make_transport(self.options)
self.session_flusher = SessionFlusher(capture_func=_capture_envelope)
request_bodies = ("always", "never", "small", "medium")
if self.options["request_bodies"] not in request_bodies:
raise ValueError(
"Invalid value for request_bodies. Must be one of {}".format(
request_bodies
)
)
self.integrations = setup_integrations(
self.options["integrations"],
with_defaults=self.options["default_integrations"],
with_auto_enabling_integrations=self.options[
"auto_enabling_integrations"
],
)
finally:
_client_init_debug.set(old_debug)
@property
def dsn(self):
# type: () -> Optional[str]
"""Returns the configured DSN as string."""
return self.options["dsn"]
def _prepare_event(
self,
event, # type: Event
hint, # type: Hint
scope, # type: Optional[Scope]
):
# type: (...) -> Optional[Event]
if event.get("timestamp") is None:
event["timestamp"] = datetime.utcnow()
if scope is not None:
is_transaction = event.get("type") == "transaction"
event_ = scope.apply_to_event(event, hint)
# one of the event/error processors returned None
if event_ is None:
if self.transport:
self.transport.record_lost_event(
"event_processor",
data_category=("transaction" if is_transaction else "error"),
)
return None
event = event_
if (
self.options["attach_stacktrace"]
and "exception" not in event
and "stacktrace" not in event
and "threads" not in event
):
with capture_internal_exceptions():
event["threads"] = {
"values": [
{
"stacktrace": current_stacktrace(
self.options["with_locals"]
),
"crashed": False,
"current": True,
}
]
}
for key in "release", "environment", "server_name", "dist":
if event.get(key) is None and self.options[key] is not None:
event[key] = text_type(self.options[key]).strip()
if event.get("sdk") is None:
sdk_info = dict(SDK_INFO)
sdk_info["integrations"] = sorted(self.integrations.keys())
event["sdk"] = sdk_info
if event.get("platform") is None:
event["platform"] = "python"
event = handle_in_app(
event, self.options["in_app_exclude"], self.options["in_app_include"]
)
# Postprocess the event here so that annotated types do
# generally not surface in before_send
if event is not None:
event = serialize(
event,
smart_transaction_trimming=self.options["_experiments"].get(
"smart_transaction_trimming"
),
)
before_send = self.options["before_send"]
if before_send is not None and event.get("type") != "transaction":
new_event = None
with capture_internal_exceptions():
new_event = before_send(event, hint or {})
if new_event is None:
logger.info("before send dropped event (%s)", event)
if self.transport:
self.transport.record_lost_event(
"before_send", data_category="error"
)
event = new_event # type: ignore
return event
def _is_ignored_error(self, event, hint):
# type: (Event, Hint) -> bool
exc_info = hint.get("exc_info")
if exc_info is None:
return False
error = exc_info[0]
error_type_name = get_type_name(exc_info[0])
error_full_name = "%s.%s" % (exc_info[0].__module__, error_type_name)
for ignored_error in self.options["ignore_errors"]:
# String types are matched against the type name in the
# exception only
if isinstance(ignored_error, string_types):
if ignored_error == error_full_name or ignored_error == error_type_name:
return True
else:
if issubclass(error, ignored_error):
return True
return False
def _should_capture(
self,
event, # type: Event
hint, # type: Hint
scope=None, # type: Optional[Scope]
):
# type: (...) -> bool
# Transactions are sampled independent of error events.
is_transaction = event.get("type") == "transaction"
if is_transaction:
return True
ignoring_prevents_recursion = scope is not None and not scope._should_capture
if ignoring_prevents_recursion:
return False
ignored_by_config_option = self._is_ignored_error(event, hint)
if ignored_by_config_option:
return False
return True
def _should_sample_error(
self,
event, # type: Event
):
# type: (...) -> bool
not_in_sample_rate = (
self.options["sample_rate"] < 1.0
and random.random() >= self.options["sample_rate"]
)
if not_in_sample_rate:
# because we will not sample this event, record a "lost event".
if self.transport:
self.transport.record_lost_event("sample_rate", data_category="error")
return False
return True
def _update_session_from_event(
self,
session, # type: Session
event, # type: Event
):
# type: (...) -> None
crashed = False
errored = False
user_agent = None
exceptions = (event.get("exception") or {}).get("values")
if exceptions:
errored = True
for error in exceptions:
mechanism = error.get("mechanism")
if mechanism and mechanism.get("handled") is False:
crashed = True
break
user = event.get("user")
if session.user_agent is None:
headers = (event.get("request") or {}).get("headers")
for (k, v) in iteritems(headers or {}):
if k.lower() == "user-agent":
user_agent = v
break
session.update(
status="crashed" if crashed else None,
user=user,
user_agent=user_agent,
errors=session.errors + (errored or crashed),
)
def capture_event(
self,
event, # type: Event
hint=None, # type: Optional[Hint]
scope=None, # type: Optional[Scope]
):
# type: (...) -> Optional[str]
"""Captures an event.
:param event: A ready-made event that can be directly sent to Sentry.
:param hint: Contains metadata about the event that can be read from `before_send`, such as the original exception object or a HTTP request object.
:returns: An event ID. May be `None` if there is no DSN set or of if the SDK decided to discard the event for other reasons. In such situations setting `debug=True` on `init()` may help.
"""
if disable_capture_event.get(False):
return None
if self.transport is None:
return None
if hint is None:
hint = {}
event_id = event.get("event_id")
hint = dict(hint or ()) # type: Hint
if event_id is None:
event["event_id"] = event_id = uuid.uuid4().hex
if not self._should_capture(event, hint, scope):
return None
event_opt = self._prepare_event(event, hint, scope)
if event_opt is None:
return None
# whenever we capture an event we also check if the session needs
# to be updated based on that information.
session = scope._session if scope else None
if session:
self._update_session_from_event(session, event)
is_transaction = event_opt.get("type") == "transaction"
if not is_transaction and not self._should_sample_error(event):
return None
attachments = hint.get("attachments")
# this is outside of the `if` immediately below because even if we don't
# use the value, we want to make sure we remove it before the event is
# sent
raw_tracestate = (
event_opt.get("contexts", {}).get("trace", {}).pop("tracestate", "")
)
# Transactions or events with attachments should go to the /envelope/
# endpoint.
if is_transaction or attachments:
headers = {
"event_id": event_opt["event_id"],
"sent_at": format_timestamp(datetime.utcnow()),
}
tracestate_data = raw_tracestate and reinflate_tracestate(
raw_tracestate.replace("sentry=", "")
)
if tracestate_data and has_tracestate_enabled():
headers["trace"] = tracestate_data
envelope = Envelope(headers=headers)
if is_transaction:
envelope.add_transaction(event_opt)
else:
envelope.add_event(event_opt)
for attachment in attachments or ():
envelope.add_item(attachment.to_envelope_item())
self.transport.capture_envelope(envelope)
else:
# All other events go to the /store/ endpoint.
self.transport.capture_event(event_opt)
return event_id
def capture_session(
self, session # type: Session
):
# type: (...) -> None
if not session.release:
logger.info("Discarded session update because of missing release")
else:
self.session_flusher.add_session(session)
def close(
self,
timeout=None, # type: Optional[float]
callback=None, # type: Optional[Callable[[int, float], None]]
):
# type: (...) -> None
"""
Close the client and shut down the transport. Arguments have the same
semantics as :py:meth:`Client.flush`.
"""
if self.transport is not None:
self.flush(timeout=timeout, callback=callback)
self.session_flusher.kill()
self.transport.kill()
self.transport = None
def flush(
self,
timeout=None, # type: Optional[float]
callback=None, # type: Optional[Callable[[int, float], None]]
):
# type: (...) -> None
"""
Wait for the current events to be sent.
:param timeout: Wait for at most `timeout` seconds. If no `timeout` is provided, the `shutdown_timeout` option value is used.
:param callback: Is invoked with the number of pending events and the configured timeout.
"""
if self.transport is not None:
if timeout is None:
timeout = self.options["shutdown_timeout"]
self.session_flusher.flush()
self.transport.flush(timeout=timeout, callback=callback)
def __enter__(self):
# type: () -> _Client
return self
def __exit__(self, exc_type, exc_value, tb):
# type: (Any, Any, Any) -> None
self.close()
from sentry_sdk._types import MYPY
if MYPY:
# Make mypy, PyCharm and other static analyzers think `get_options` is a
# type to have nicer autocompletion for params.
#
# Use `ClientConstructor` to define the argument types of `init` and
# `Dict[str, Any]` to tell static analyzers about the return type.
class get_options(ClientConstructor, Dict[str, Any]): # noqa: N801
pass
class Client(ClientConstructor, _Client):
pass
else:
# Alias `get_options` for actual usage. Go through the lambda indirection
# to throw PyCharm off of the weakly typed signature (it would otherwise
# discover both the weakly typed signature of `_init` and our faked `init`
# type).
get_options = (lambda: _get_options)()
Client = (lambda: _Client)()
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