forked from CGM_Public/pretix_original
4f4903b00e
* Metrics: Fix Content Type header
Now it follows the PrometheusText1.0.0 ContentType header specified from their code: 32d306854b/config/config.go (L516-L529)
* Update src/pretix/base/views/metrics.py
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Co-authored-by: Raphael Michel <mail@raphaelmichel.de>
84 lines
3.5 KiB
Python
84 lines
3.5 KiB
Python
#
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# This file is part of pretix (Community Edition).
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#
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# Copyright (C) 2014-2020 Raphael Michel and contributors
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# Copyright (C) 2020-2021 rami.io GmbH and contributors
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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation in version 3 of the License.
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#
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# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
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# this file, see <https://pretix.eu/about/en/license>.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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#
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# This file is based on an earlier version of pretix which was released under the Apache License 2.0. The full text of
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# the Apache License 2.0 can be obtained at <http://www.apache.org/licenses/LICENSE-2.0>.
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#
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# This file may have since been changed and any changes are released under the terms of AGPLv3 as described above. A
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# full history of changes and contributors is available at <https://github.com/pretix/pretix>.
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#
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# This file contains Apache-licensed contributions copyrighted by: Jonas Große Sundrup
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#
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# Unless required by applicable law or agreed to in writing, software distributed under the Apache License 2.0 is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under the License.
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import base64
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import hmac
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from django.conf import settings
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from django.http import HttpResponse
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from django_scopes import scopes_disabled
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from .. import metrics
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def unauthed_response():
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content = "<html><title>Forbidden</title><body>You are not authorized to view this page.</body></html>"
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response = HttpResponse(content, content_type="text/html")
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response["WWW-Authenticate"] = 'Basic realm="metrics"'
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response.status_code = 401
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return response
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@scopes_disabled()
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def serve_metrics(request):
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if not settings.METRICS_ENABLED:
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return unauthed_response()
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# check if the user is properly authorized:
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if "Authorization" not in request.headers:
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return unauthed_response()
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method, credentials = request.headers["Authorization"].split(" ", 1)
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if method.lower() != "basic":
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return unauthed_response()
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user, passphrase = base64.b64decode(credentials.strip()).decode().split(":", 1)
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if not hmac.compare_digest(user, settings.METRICS_USER):
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return unauthed_response()
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if not hmac.compare_digest(passphrase, settings.METRICS_PASSPHRASE):
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return unauthed_response()
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# ok, the request passed the authentication-barrier, let's hand out the metrics:
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m = metrics.metric_values()
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output = []
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for metric, sub in m.items():
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for label, value in sub.items():
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output.append("{}{} {}".format(metric, label, str(value)))
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content = "\n".join(output) + "\n"
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return HttpResponse(content, content_type="text/plain;version=1.0.0;escaping=allow-utf-8")
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