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https://github.com/jupyterhub/jupyterhub.git
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39c171cce7
by specifying JupyterHub.logo_file also ensures single-user server always has the same logo image as the Hub
29 lines
860 B
Python
29 lines
860 B
Python
# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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import os
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from tornado.web import StaticFileHandler
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class CacheControlStaticFilesHandler(StaticFileHandler):
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"""StaticFileHandler subclass that sets Cache-Control: no-cache without `?v=`
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rather than relying on default browser cache behavior.
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"""
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def compute_etag(self):
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return None
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def set_extra_headers(self, path):
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if "v" not in self.request.arguments:
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self.add_header("Cache-Control", "no-cache")
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class LogoHandler(StaticFileHandler):
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"""A singular handler for serving the logo."""
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def get(self):
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return super().get('')
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@classmethod
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def get_absolute_path(cls, root, path):
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"""We only serve one file, ignore relative path"""
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return os.path.abspath(root)
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