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annotate libervia/server/proxy.py @ 1360:389a83eefe62

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server: SàT applications integration: - a SàT Application can be added to the menu (if necessary values are exposed), by using the `sat-app:[application_name]` in `menu_json` or `menu_extra_json`. The application will then be started with Libervia, and embedded, i.e. Libervia menu will appear and application will be integrated under it. - the same `sat-app:[application_name]` thing can be used in redirection, in this case the redirection will reverse proxy directly the application, without embedding it (no Libervia menu will appear) - the ReverseProxy will replace headers if necessary to allow embedding in a iframe from the same domain - new `embed_app` page to embed a SàT Application
author Goffi <goffi@goffi.org>
date Mon, 28 Sep 2020 21:12:21 +0200
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children 822bd0139769
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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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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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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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22 log = getLogger(__name__)
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26 class SatProxyClient(proxy.ProxyClient):
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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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34 super().handleHeader(key, value)
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37 class SatProxyClientFactory(proxy.ProxyClientFactory):
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38 protocol = SatProxyClient
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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 )