01a9ad2369
This introduces a mechanism to control the time-to-live for an unlocked course asset, which will allow browsers and intermediate proxies/caches to cache these course assets, determinstically. Locked assets, with their nature of requiring authorization, are not eligible for caching.
26 lines
742 B
Python
26 lines
742 B
Python
"""
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Middleware used for cleaning headers from a response before it is sent to the end user.
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"""
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class CleanHeadersMiddleware(object):
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"""
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Middleware that can drop headers present in a response.
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This can be used, for example, to remove headers i.e. drop any Vary headers to improve cache performance.
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"""
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def process_response(self, _request, response):
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"""
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Processes the given response, potentially stripping out any unwanted headers.
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"""
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if len(getattr(response, 'clean_headers', [])) > 0:
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for header in response.clean_headers:
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try:
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del response[header]
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except KeyError:
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pass
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return response
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