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1 #!/usr/bin/env python3 |
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2 |
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3 # Libervia: a Salut à Toi frontend |
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4 # Copyright (C) 2011-2020 Jérôme Poisson <goffi@goffi.org> |
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5 |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU Affero General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU Affero General Public License for more details. |
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15 |
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16 # You should have received a copy of the GNU Affero General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 from twisted.web import proxy |
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19 from twisted.python.compat import urlquote |
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20 from sat.core.log import getLogger |
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21 |
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22 log = getLogger(__name__) |
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23 |
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24 |
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25 |
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26 class SatProxyClient(proxy.ProxyClient): |
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27 |
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28 def handleHeader(self, key, value): |
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29 if key.lower() == b"x-frame-options": |
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30 value = b"sameorigin" |
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31 elif key.lower() == b"content-security-policy": |
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32 value = value.replace(b"frame-ancestors 'none'", b"frame-ancestors 'self'") |
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33 |
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34 super().handleHeader(key, value) |
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35 |
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36 |
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37 class SatProxyClientFactory(proxy.ProxyClientFactory): |
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38 protocol = SatProxyClient |
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39 |
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40 |
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41 class SatReverseProxyResource(proxy.ReverseProxyResource): |
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42 """Resource Proxy rewritting headers to allow embedding in iframe on same domain""" |
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43 proxyClientFactoryClass = SatProxyClientFactory |
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44 |
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45 def getChild(self, path, request): |
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46 return SatReverseProxyResource( |
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47 self.host, self.port, |
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48 self.path + b'/' + urlquote(path, safe=b"").encode('utf-8'), |
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49 self.reactor |
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50 ) |
