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Correctly initialise the synapse_user_logins metric. (#10677)

Fix a bug where the prometheus metrics for SSO logins wouldn't be initialised
until the first user logged in with a given auth provider.
This commit is contained in:
Richard van der Hoff 2021-08-24 10:17:51 +01:00 committed by GitHub
parent 86415f162d
commit 15db8b7c7f
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4 changed files with 44 additions and 6 deletions

1
changelog.d/10677.bugfix Normal file
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@ -0,0 +1 @@
Fix a bug which caused the `synapse_user_logins_total` Prometheus metric not to be correctly initialised on restart.

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@ -56,6 +56,22 @@ login_counter = Counter(
)
def init_counters_for_auth_provider(auth_provider_id: str) -> None:
"""Ensure the prometheus counters for the given auth provider are initialised
This fixes a problem where the counters are not reported for a given auth provider
until the user first logs in/registers.
"""
for is_guest in (True, False):
login_counter.labels(guest=is_guest, auth_provider=auth_provider_id)
for shadow_banned in (True, False):
registration_counter.labels(
guest=is_guest,
shadow_banned=shadow_banned,
auth_provider=auth_provider_id,
)
class LoginDict(TypedDict):
device_id: str
access_token: str
@ -96,6 +112,8 @@ class RegistrationHandler(BaseHandler):
self.session_lifetime = hs.config.session_lifetime
self.access_token_lifetime = hs.config.access_token_lifetime
init_counters_for_auth_provider("")
async def check_username(
self,
localpart: str,

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@ -37,6 +37,7 @@ from twisted.web.server import Request
from synapse.api.constants import LoginType
from synapse.api.errors import Codes, NotFoundError, RedirectException, SynapseError
from synapse.config.sso import SsoAttributeRequirement
from synapse.handlers.register import init_counters_for_auth_provider
from synapse.handlers.ui_auth import UIAuthSessionDataConstants
from synapse.http import get_request_user_agent
from synapse.http.server import respond_with_html, respond_with_redirect
@ -213,6 +214,7 @@ class SsoHandler:
p_id = p.idp_id
assert p_id not in self._identity_providers
self._identity_providers[p_id] = p
init_counters_for_auth_provider(p_id)
def get_identity_providers(self) -> Mapping[str, SsoIdentityProvider]:
"""Get the configured identity providers"""

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@ -104,6 +104,12 @@ class LoginRestServlet(RestServlet):
burst_count=self.hs.config.rc_login_account.burst_count,
)
# ensure the CAS/SAML/OIDC handlers are loaded on this worker instance.
# The reason for this is to ensure that the auth_provider_ids are registered
# with SsoHandler, which in turn ensures that the login/registration prometheus
# counters are initialised for the auth_provider_ids.
_load_sso_handlers(hs)
def on_GET(self, request: SynapseRequest):
flows = []
if self.jwt_enabled:
@ -499,12 +505,7 @@ class SsoRedirectServlet(RestServlet):
def __init__(self, hs: "HomeServer"):
# make sure that the relevant handlers are instantiated, so that they
# register themselves with the main SSOHandler.
if hs.config.cas_enabled:
hs.get_cas_handler()
if hs.config.saml2_enabled:
hs.get_saml_handler()
if hs.config.oidc_enabled:
hs.get_oidc_handler()
_load_sso_handlers(hs)
self._sso_handler = hs.get_sso_handler()
self._msc2858_enabled = hs.config.experimental.msc2858_enabled
self._public_baseurl = hs.config.public_baseurl
@ -598,3 +599,19 @@ def register_servlets(hs, http_server):
SsoRedirectServlet(hs).register(http_server)
if hs.config.cas_enabled:
CasTicketServlet(hs).register(http_server)
def _load_sso_handlers(hs: "HomeServer"):
"""Ensure that the SSO handlers are loaded, if they are enabled by configuration.
This is mostly useful to ensure that the CAS/SAML/OIDC handlers register themselves
with the main SsoHandler.
It's safe to call this multiple times.
"""
if hs.config.cas.cas_enabled:
hs.get_cas_handler()
if hs.config.saml2.saml2_enabled:
hs.get_saml_handler()
if hs.config.oidc.oidc_enabled:
hs.get_oidc_handler()