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# Copyright 2012 Canonical Ltd.
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# This file is part of u1db.
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# u1db is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License version 3
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# as published by the Free Software Foundation.
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# u1db is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public License
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# along with u1db. If not, see <http://www.gnu.org/licenses/>.
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"""U1DB Cross-Origin Resource Sharing WSGI middleware."""
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class CORSMiddleware(object):
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"""U1DB Cross-Origin Resource Sharing WSGI middleware."""
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def __init__(self, app, accept_cors_connections):
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self.origins = ' '.join(accept_cors_connections)
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def _cors_headers(self):
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return [('access-control-allow-origin', self.origins),
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('access-control-allow-headers',
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'authorization, content-type'),
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('access-control-allow-methods',
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'GET, POST, PUT, DELETE, OPTIONS')]
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def __call__(self, environ, start_response):
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def wrap_start_response(status, headers, exc_info=None):
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headers += self._cors_headers()
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return start_response(status, headers, exc_info)
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if environ['REQUEST_METHOD'].lower() == 'options':
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wrap_start_response("200 OK", [('content-type', 'text/plain')])
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return self.app(environ, wrap_start_response)
added
removed
u1db/remote/cors_middleware.py
