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from __future__ import print_function
import io
import urllib3 # type: ignore
import certifi
import gzip
from datetime import datetime, timedelta
from sentry_sdk.utils import Dsn, logger, capture_internal_exceptions, json_dumps
from sentry_sdk.worker import BackgroundWorker
from sentry_sdk.envelope import Envelope
from sentry_sdk._types import MYPY
if MYPY:
from typing import Any
from typing import Callable
from typing import Dict
from typing import Iterable
from typing import Optional
from typing import Tuple
from typing import Type
from typing import Union
from urllib3.poolmanager import PoolManager # type: ignore
from urllib3.poolmanager import ProxyManager
from sentry_sdk._types import Event, EndpointType
DataCategory = Optional[str]
try:
from urllib.request import getproxies
except ImportError:
from urllib import getproxies # type: ignore
class Transport(object):
"""Baseclass for all transports.
A transport is used to send an event to sentry.
"""
parsed_dsn = None # type: Optional[Dsn]
def __init__(
self, options=None # type: Optional[Dict[str, Any]]
):
# type: (...) -> None
self.options = options
if options and options["dsn"] is not None and options["dsn"]:
self.parsed_dsn = Dsn(options["dsn"])
else:
self.parsed_dsn = None
def capture_event(
self, event # type: Event
):
# type: (...) -> None
"""
This gets invoked with the event dictionary when an event should
be sent to sentry.
"""
raise NotImplementedError()
def capture_envelope(
self, envelope # type: Envelope
):
# type: (...) -> None
"""
Send an envelope to Sentry.
Envelopes are a data container format that can hold any type of data
submitted to Sentry. We use it for transactions and sessions, but
regular "error" events should go through `capture_event` for backwards
compat.
"""
raise NotImplementedError()
def flush(
self,
timeout, # type: float
callback=None, # type: Optional[Any]
):
# type: (...) -> None
"""Wait `timeout` seconds for the current events to be sent out."""
pass
def kill(self):
# type: () -> None
"""Forcefully kills the transport."""
pass
def __del__(self):
# type: () -> None
try:
self.kill()
except Exception:
pass
def _parse_rate_limits(header, now=None):
# type: (Any, Optional[datetime]) -> Iterable[Tuple[DataCategory, datetime]]
if now is None:
now = datetime.utcnow()
for limit in header.split(","):
try:
retry_after, categories, _ = limit.strip().split(":", 2)
retry_after = now + timedelta(seconds=int(retry_after))
for category in categories and categories.split(";") or (None,):
yield category, retry_after
except (LookupError, ValueError):
continue
class HttpTransport(Transport):
"""The default HTTP transport."""
def __init__(
self, options # type: Dict[str, Any]
):
# type: (...) -> None
from sentry_sdk.consts import VERSION
Transport.__init__(self, options)
assert self.parsed_dsn is not None
self._worker = BackgroundWorker()
self._auth = self.parsed_dsn.to_auth("sentry.python/%s" % VERSION)
self._disabled_until = {} # type: Dict[DataCategory, datetime]
self._retry = urllib3.util.Retry()
self.options = options
self._pool = self._make_pool(
self.parsed_dsn,
http_proxy=options["http_proxy"],
https_proxy=options["https_proxy"],
ca_certs=options["ca_certs"],
)
from sentry_sdk import Hub
self.hub_cls = Hub
def _update_rate_limits(self, response):
# type: (urllib3.HTTPResponse) -> None
# new sentries with more rate limit insights. We honor this header
# no matter of the status code to update our internal rate limits.
header = response.headers.get("x-sentry-rate-limits")
if header:
self._disabled_until.update(_parse_rate_limits(header))
# old sentries only communicate global rate limit hits via the
# retry-after header on 429. This header can also be emitted on new
# sentries if a proxy in front wants to globally slow things down.
elif response.status == 429:
self._disabled_until[None] = datetime.utcnow() + timedelta(
seconds=self._retry.get_retry_after(response) or 60
)
def _send_request(
self,
body, # type: bytes
headers, # type: Dict[str, str]
endpoint_type="store", # type: EndpointType
):
# type: (...) -> None
headers.update(
{
"User-Agent": str(self._auth.client),
"X-Sentry-Auth": str(self._auth.to_header()),
}
)
response = self._pool.request(
"POST",
str(self._auth.get_api_url(endpoint_type)),
body=body,
headers=headers,
)
try:
self._update_rate_limits(response)
if response.status == 429:
# if we hit a 429. Something was rate limited but we already
# acted on this in `self._update_rate_limits`.
pass
elif response.status >= 300 or response.status < 200:
logger.error(
"Unexpected status code: %s (body: %s)",
response.status,
response.data,
)
finally:
response.close()
def _check_disabled(self, category):
# type: (str) -> bool
def _disabled(bucket):
# type: (Any) -> bool
ts = self._disabled_until.get(bucket)
return ts is not None and ts > datetime.utcnow()
return _disabled(category) or _disabled(None)
def _send_event(
self, event # type: Event
):
# type: (...) -> None
if self._check_disabled("error"):
return None
body = io.BytesIO()
with gzip.GzipFile(fileobj=body, mode="w") as f:
f.write(json_dumps(event))
assert self.parsed_dsn is not None
logger.debug(
"Sending event, type:%s level:%s event_id:%s project:%s host:%s"
% (
event.get("type") or "null",
event.get("level") or "null",
event.get("event_id") or "null",
self.parsed_dsn.project_id,
self.parsed_dsn.host,
)
)
self._send_request(
body.getvalue(),
headers={"Content-Type": "application/json", "Content-Encoding": "gzip"},
)
return None
def _send_envelope(
self, envelope # type: Envelope
):
# type: (...) -> None
# remove all items from the envelope which are over quota
envelope.items[:] = [
x for x in envelope.items if not self._check_disabled(x.data_category)
]
if not envelope.items:
return None
body = io.BytesIO()
with gzip.GzipFile(fileobj=body, mode="w") as f:
envelope.serialize_into(f)
assert self.parsed_dsn is not None
logger.debug(
"Sending envelope [%s] project:%s host:%s",
envelope.description,
self.parsed_dsn.project_id,
self.parsed_dsn.host,
)
self._send_request(
body.getvalue(),
headers={
"Content-Type": "application/x-sentry-envelope",
"Content-Encoding": "gzip",
},
endpoint_type="envelope",
)
return None
def _get_pool_options(self, ca_certs):
# type: (Optional[Any]) -> Dict[str, Any]
return {
"num_pools": 2,
"cert_reqs": "CERT_REQUIRED",
"ca_certs": ca_certs or certifi.where(),
}
def _in_no_proxy(self, parsed_dsn):
# type: (Dsn) -> bool
no_proxy = getproxies().get("no")
if not no_proxy:
return False
for host in no_proxy.split(","):
host = host.strip()
if parsed_dsn.host.endswith(host) or parsed_dsn.netloc.endswith(host):
return True
return False
def _make_pool(
self,
parsed_dsn, # type: Dsn
http_proxy, # type: Optional[str]
https_proxy, # type: Optional[str]
ca_certs, # type: Optional[Any]
):
# type: (...) -> Union[PoolManager, ProxyManager]
proxy = None
no_proxy = self._in_no_proxy(parsed_dsn)
# try HTTPS first
if parsed_dsn.scheme == "https" and (https_proxy != ""):
proxy = https_proxy or (not no_proxy and getproxies().get("https"))
# maybe fallback to HTTP proxy
if not proxy and (http_proxy != ""):
proxy = http_proxy or (not no_proxy and getproxies().get("http"))
opts = self._get_pool_options(ca_certs)
if proxy:
return urllib3.ProxyManager(proxy, **opts)
else:
return urllib3.PoolManager(**opts)
def capture_event(
self, event # type: Event
):
# type: (...) -> None
hub = self.hub_cls.current
def send_event_wrapper():
# type: () -> None
with hub:
with capture_internal_exceptions():
self._send_event(event)
self._worker.submit(send_event_wrapper)
def capture_envelope(
self, envelope # type: Envelope
):
# type: (...) -> None
hub = self.hub_cls.current
def send_envelope_wrapper():
# type: () -> None
with hub:
with capture_internal_exceptions():
self._send_envelope(envelope)
self._worker.submit(send_envelope_wrapper)
def flush(
self,
timeout, # type: float
callback=None, # type: Optional[Any]
):
# type: (...) -> None
logger.debug("Flushing HTTP transport")
if timeout > 0:
self._worker.flush(timeout, callback)
def kill(self):
# type: () -> None
logger.debug("Killing HTTP transport")
self._worker.kill()
class _FunctionTransport(Transport):
def __init__(
self, func # type: Callable[[Event], None]
):
# type: (...) -> None
Transport.__init__(self)
self._func = func
def capture_event(
self, event # type: Event
):
# type: (...) -> None
self._func(event)
return None
def make_transport(options):
# type: (Dict[str, Any]) -> Optional[Transport]
ref_transport = options["transport"]
# If no transport is given, we use the http transport class
if ref_transport is None:
transport_cls = HttpTransport # type: Type[Transport]
elif isinstance(ref_transport, Transport):
return ref_transport
elif isinstance(ref_transport, type) and issubclass(ref_transport, Transport):
transport_cls = ref_transport
elif callable(ref_transport):
return _FunctionTransport(ref_transport) # type: ignore
# if a transport class is given only instantiate it if the dsn is not
# empty or None
if options["dsn"]:
return transport_cls(options)
return None