Files
pretix_cgo/src/pretix/base/views/metrics.py
Jonas Große Sundrup d3327b1e45 Add basic instrumentation possibilities to pretix (#271)
* add basic instrumentation possibilities to pretix

* make tabs to spaces

* apply flake8

* implement upstreams suggestions, round 1

* adjust naming of redis-connection

* address noredis

* add view for metrics

* implement HTTP basic auth in front of metrics-endpoint

* rename labelset

* make flake8-clean

* implement upstreams suggestions, round 2

* correct minor slipups

* fix missing return

* let isort add an empty line

* implement test for counter

* implement upstream suggestions, round 3

* correct typo

* implement first test for view

* finish view-test

* fix deprecated keyword

* implement upstream-suggestions, round 4

* implement test for gauge

* test exceptions as well

* add db-decorator
2016-11-20 14:46:45 +01:00

44 lines
1.3 KiB
Python

from django.conf import settings
from django.http import HttpResponse
from .. import metrics
def unauthed_response():
content = "<html><title>Forbidden</title><body>You are not authorized to view this page.</body></html>"
response = HttpResponse(content, content_type="text/html")
response["WWW-Authenticate"] = 'Basic realm="metrics"'
response.status_code = 401
return response
def serve_metrics(request):
if not settings.METRICS_ENABLED:
return unauthed_response()
# check if the user is properly authorized:
if "HTTP_AUTHORIZATION" not in request.META:
return unauthed_response()
method, credentials = request.META["HTTP_AUTHORIZATION"].split(" ", 1)
if method.lower() != "basic":
return unauthed_response()
user, passphrase = credentials.strip().decode("base64").split(":", 1)
if user != settings.METRICS_USER:
return unauthed_response()
if passphrase != settings.METRICS_PASSPHRASE:
return unauthed_response()
# ok, the request passed the authentication-barrier, let's hand out the metrics:
m = metrics.metric_values()
output = []
for metric, value in m:
output.append("{} {}".format(metric, str(value)))
content = "\n".join(output)
return HttpResponse(content)