zulip/zerver/views/sentry.py

84 lines
3.3 KiB
Python

import urllib
from contextlib import suppress
import orjson
from django.conf import settings
from django.http import HttpRequest, HttpResponse
from django.utils.translation import gettext as _
from django.views.decorators.csrf import csrf_exempt
from zerver.lib.exceptions import JsonableError
from zerver.lib.outgoing_http import OutgoingSession
from zerver.lib.validator import (
check_url,
to_wild_value,
)
class SentryTunnelSession(OutgoingSession):
def __init__(self) -> None:
super().__init__(role="sentry_tunnel", timeout=5)
@csrf_exempt
def sentry_tunnel(
request: HttpRequest,
) -> HttpResponse:
try:
envelope_header_line, envelope_items = request.body.split(b"\n", 1)
envelope_header = to_wild_value("envelope_header", envelope_header_line.decode("utf-8"))
dsn = urllib.parse.urlparse(envelope_header["dsn"].tame(check_url))
except Exception:
raise JsonableError(_("Invalid request format"))
if dsn.geturl() != settings.SENTRY_FRONTEND_DSN:
raise JsonableError(_("Invalid DSN"))
assert dsn.hostname
project_id = dsn.path.strip("/")
url = dsn._replace(netloc=dsn.hostname, path=f"/api/{project_id}/envelope/").geturl()
# Adjust the payload to explicitly contain the IP address of the
# user we see. If left blank, Sentry will assume the IP it
# received the request from, which is Zulip's, which can make
# debugging more complicated.
updated_body = request.body
# If we fail to update the body for any reason, leave it as-is; it
# is better to mis-report the IP than to drop the report entirely.
with suppress(Exception):
# This parses the Sentry ingestion format, known as an
# Envelope. See https://develop.sentry.dev/sdk/envelopes/ for
# spec.
parts = [envelope_header_line, b"\n"]
while envelope_items != b"":
item_header_line, rest = envelope_items.split(b"\n", 1)
parts.append(item_header_line)
parts.append(b"\n")
item_header = orjson.loads(item_header_line.decode("utf-8"))
length = item_header.get("length")
if length is None:
item_body, envelope_items = ([*rest.split(b"\n", 1), b""])[:2]
else:
item_body, envelope_items = rest[0:length], rest[length:]
if item_header.get("type") in ("transaction", "event"):
# Event schema:
# https://develop.sentry.dev/sdk/event-payloads/#core-interfaces
# https://develop.sentry.dev/sdk/event-payloads/user/
#
# Transaction schema:
# https://develop.sentry.dev/sdk/event-payloads/transaction/#anatomy
# Note that "Transactions are Events enriched with Span data."
payload_data = orjson.loads(item_body)
if "user" in payload_data:
payload_data["user"]["ip_address"] = request.META.get("REMOTE_ADDR")
item_body = orjson.dumps(payload_data)
parts.append(item_body)
if length is None:
parts.append(b"\n")
updated_body = b"".join(parts)
SentryTunnelSession().post(
url=url, data=updated_body, headers={"Content-Type": "application/x-sentry-envelope"}
).raise_for_status()
return HttpResponse(status=200)