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Set and use ETag headers

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Also set no-cache exactly as github recommends. The removed @no_cache
decorater used "Cache-Control:no-cache, no-store, must-revalidate", but
just no-cache should be sufficient, and should certainly work correctly
with github.

See: https://github.com/github/markup/issues/224#issuecomment-48532178

fixes #712
This commit is contained in:
Matt Jibson 2015-11-06 12:15:15 -05:00
parent 4f6d81b1ec
commit f4b57eff96
1 changed files with 5 additions and 1 deletions
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6
endpoints/web.py
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@ -399,7 +399,6 @@ def confirm_recovery():
@web.route('/repository/<path:repository>/status', methods=['GET'])
@parse_repository_name
@no_cache
@anon_protect
def build_status_badge(namespace, repository):
token = request.args.get('token', None)
@ -423,8 +422,13 @@ def build_status_badge(namespace, repository):
else:
status_name = 'none'
if request.headers.get('If-None-Match') == status_name:
return Response(status=304)
response = make_response(STATUS_TAGS[status_name])
response.content_type = 'image/svg+xml'
response.headers['Cache-Control'] = 'no-cache'
response.headers['ETag'] = status_name
return response