2008a413b6
The lorax-composer program will launch a BDCS compatible API server using Flask and Gevent. Currently this is a skeleton application with only one active route (/api/v0/status). The API code lives in ./src/pylorax/api/v0.py with related code in other pylorax/api/* modules.
64 lines
2.3 KiB
Python
64 lines
2.3 KiB
Python
#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program 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 General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# crossdomain decorator from - http://flask.pocoo.org/snippets/56/
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from datetime import timedelta
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from flask import make_response, request, current_app
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from functools import update_wrapper
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def crossdomain(origin, methods=None, headers=None,
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max_age=21600, attach_to_all=True,
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automatic_options=True):
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if methods is not None:
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methods = ', '.join(sorted(x.upper() for x in methods))
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if headers is not None and not isinstance(headers, basestring):
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headers = ', '.join(x.upper() for x in headers)
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if not isinstance(origin, list):
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origin = [origin]
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if isinstance(max_age, timedelta):
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max_age = max_age.total_seconds()
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def get_methods():
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if methods is not None:
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return methods
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options_resp = current_app.make_default_options_response()
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return options_resp.headers['allow']
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def decorator(f):
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def wrapped_function(*args, **kwargs):
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if automatic_options and request.method == 'OPTIONS':
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resp = current_app.make_default_options_response()
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else:
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resp = make_response(f(*args, **kwargs))
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if not attach_to_all and request.method != 'OPTIONS':
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return resp
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h = resp.headers
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h.extend([("Access-Control-Allow-Origin", orig) for orig in origin])
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h['Access-Control-Allow-Methods'] = get_methods()
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h['Access-Control-Max-Age'] = str(max_age)
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if headers is not None:
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h['Access-Control-Allow-Headers'] = headers
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return resp
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f.provide_automatic_options = False
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return update_wrapper(wrapped_function, f)
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return decorator
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