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annotate sat/tools/web.py @ 3372:5d926c7b0d99

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plugin app manager: first draft: /!\ new optional dependency: pyyaml this plugin manage the life cycle of external applications. Application handlers register to it. Data needed to launch an application as set in YAML files. Local data types are used to get values directly from SàT: - !sat_conf to retrieve a configuration value - !sat_generate_pwd to generate a password - !sat_param for parameters specified a launch Data can be exposed when an instance is launched, this can be used to specify the port (notably the one used for web), or a generated password.
author Goffi <goffi@goffi.org>
date Mon, 28 Sep 2020 21:10:30 +0200
parents 2c0628f3927e
children be6d91572633
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1 #!/usr/bin/env python3
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2
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3 # SàT: an XMPP client
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4 # Copyright (C) 2009-2020 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
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19 from OpenSSL import SSL
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20 from zope.interface import implementer
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21 from treq.client import HTTPClient
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22 from twisted.internet.interfaces import IOpenSSLClientConnectionCreator
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23 from twisted.internet import reactor, ssl
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24 from twisted.web import iweb
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25 from twisted.web import client as http_client
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26 from sat.core.log import getLogger
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27
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29 log = getLogger(__name__)
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32 SSLError = SSL.Error
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33
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34
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35 @implementer(IOpenSSLClientConnectionCreator)
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36 class NoCheckConnectionCreator(object):
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37 def __init__(self, hostname, ctx):
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38 self._ctx = ctx
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39
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40 def clientConnectionForTLS(self, tlsProtocol):
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41 context = self._ctx
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42 connection = SSL.Connection(context, None)
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43 connection.set_app_data(tlsProtocol)
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44 return connection
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47 @implementer(iweb.IPolicyForHTTPS)
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48 class NoCheckContextFactory:
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49 """Context factory which doesn't do TLS certificate check
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50
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51 /!\\ it's obvisously a security flaw to use this class,
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52 and it should be used only with explicit agreement from the end used
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53 """
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54
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55 def creatorForNetloc(self, hostname, port):
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56 log.warning(
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57 "TLS check disabled for {host} on port {port}".format(
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58 host=hostname, port=port
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59 )
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60 )
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61 certificateOptions = ssl.CertificateOptions(trustRoot=None)
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62 return NoCheckConnectionCreator(hostname, certificateOptions.getContext())
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63
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65 #: following treq doesn't check TLS, obviously it is unsecure and should not be used
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66 #: without explicit warning
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67 treq_client_no_ssl = HTTPClient(http_client.Agent(reactor, NoCheckContextFactory()))