Mercurial > libervia-backend
comparison sat/tools/web.py @ 3089:e75024e41f81
plugin upload, XEP-0363: code modernisation + preparation for extension:
- use of async/await syntax
- fileUpload's options are now serialised, allowing non string values
- (XEP-0363) Slot is now a dataclass, so it can be modified by other plugins
- (XEP-0363) Moved SSL related code to the new tools.web module
- (XEP-0363) added `XEP-0363_upload_size` and `XEP-0363_upload` trigger points
- a Deferred is not used anymore for `progress_id`, the value is directly returned
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 20 Dec 2019 12:28:04 +0100 |
| parents | |
| children | 9d0df638c8b4 |
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| 3088:d1464548055a | 3089:e75024e41f81 |
|---|---|
| 1 #!/usr/bin/env python3 | |
| 2 | |
| 3 # SàT: an XMPP client | |
| 4 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org) | |
| 5 | |
| 6 # This program is free software: you can redistribute it and/or modify | |
| 7 # it under the terms of the GNU Affero General Public License as published by | |
| 8 # the Free Software Foundation, either version 3 of the License, or | |
| 9 # (at your option) any later version. | |
| 10 | |
| 11 # This program is distributed in the hope that it will be useful, | |
| 12 # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 # GNU Affero General Public License for more details. | |
| 15 | |
| 16 # You should have received a copy of the GNU Affero General Public License | |
| 17 # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 18 | |
| 19 from OpenSSL import SSL | |
| 20 from zope.interface import implementer | |
| 21 from treq.client import HTTPClient | |
| 22 from twisted.internet.interfaces import IOpenSSLClientConnectionCreator | |
| 23 from twisted.internet import reactor, ssl | |
| 24 from twisted.web import iweb | |
| 25 from twisted.web import client as http_client | |
| 26 from sat.core.log import getLogger | |
| 27 | |
| 28 | |
| 29 log = getLogger(__name__) | |
| 30 | |
| 31 | |
| 32 SSLError = SSL.Error | |
| 33 | |
| 34 | |
| 35 @implementer(IOpenSSLClientConnectionCreator) | |
| 36 class NoCheckConnectionCreator(object): | |
| 37 def __init__(self, hostname, ctx): | |
| 38 self._ctx = ctx | |
| 39 | |
| 40 def clientConnectionForTLS(self, tlsProtocol): | |
| 41 context = self._ctx | |
| 42 connection = SSL.Connection(context, None) | |
| 43 connection.set_app_data(tlsProtocol) | |
| 44 return connection | |
| 45 | |
| 46 | |
| 47 @implementer(iweb.IPolicyForHTTPS) | |
| 48 class NoCheckContextFactory(ssl.ClientContextFactory): | |
| 49 """Context factory which doesn't do TLS certificate check | |
| 50 | |
| 51 /!\\ it's obvisously a security flaw to use this class, | |
| 52 and it should be used only with explicit agreement from the end used | |
| 53 """ | |
| 54 | |
| 55 def creatorForNetloc(self, hostname, port): | |
| 56 log.warning( | |
| 57 "TLS check disabled for {host} on port {port}".format( | |
| 58 host=hostname, port=port | |
| 59 ) | |
| 60 ) | |
| 61 certificateOptions = ssl.CertificateOptions(trustRoot=None) | |
| 62 return NoCheckConnectionCreator(hostname, certificateOptions.getContext()) | |
| 63 | |
| 64 | |
| 65 #: following treq doesn't check TLS, obviously it is unsecure and should not be used | |
| 66 #: without explicit warning | |
| 67 treq_no_ssl = HTTPClient(http_client.Agent(reactor, NoCheckContextFactory)) |