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annotate sat/tools/common/email.py @ 3104:118d91c932a7

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plugin XEP-0384: OMEMO for MUC implementation: - encryption is now allowed for group chats - when an encryption is requested for a MUC, real jids or all occupants are used to encrypt the message - a cache for plain text message sent to MUC is used, because for security reason we can't encrypt message for our own device with OMEMO (that would prevent ratchet and break the prefect forward secrecy). Thus, message sent in MUC are cached for 5 min, and the decrypted version is used when found. We don't send immediately the plain text message to frontends and history because we want to keep the same MUC behaviour as for plain text, and receiving a message means that it was received and sent back by MUC service - <origin-id> is used to identify messages sent by our device - a feedback_jid is now use to use correct entity for feedback message in case of problem: with a room we have to send feedback message to the room and not the the emitter - encryptMessage now only accepts list in the renamed "entity_bare_jids" argument
author Goffi <goffi@goffi.org>
date Mon, 30 Dec 2019 20:59:46 +0100
parents ca6c695c65da
children 9d0df638c8b4
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1 #!/usr/bin/env python3
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2 # -*- coding: utf-8 -*-
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3
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4 # SàT: a jabber client
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
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20 """email sending facilities"""
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21
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23 from email.mime.text import MIMEText
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24 from twisted.mail import smtp
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25 from sat.core.constants import Const as C
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26 from sat.tools import config as tools_config
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29 def sendEmail(config, to_emails, subject="", body="", from_email=None):
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30 """Send an email using SàT configuration
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31
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32 @param config (SafeConfigParser): the configuration instance
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33 @param to_emails(list[unicode], unicode): list of recipients
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34 if unicode, it will be split to get emails
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35 @param subject(unicode): subject of the message
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36 @param body(unicode): body of the message
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37 @param from_email(unicode): address of the sender
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38 @return (D): same as smtp.sendmail
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39 """
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40 if isinstance(to_emails, str):
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41 to_emails = to_emails.split()
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42 email_host = tools_config.getConfig(config, None, "email_server") or "localhost"
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43 email_from = tools_config.getConfig(config, None, "email_from")
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44 if email_from is None:
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45 # we suppose that email domain and XMPP domain are identical
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46 domain = tools_config.getConfig(config, None, "xmpp_domain", "example.net")
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47 email_from = "no_reply@" + domain
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48 email_sender_domain = tools_config.getConfig(config, None, "email_sender_domain")
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49 email_port = int(tools_config.getConfig(config, None, "email_port", 25))
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50 email_username = tools_config.getConfig(config, None, "email_username")
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51 email_password = tools_config.getConfig(config, None, "email_password")
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52 email_auth = C.bool(tools_config.getConfig(config, None, "email_auth", C.BOOL_FALSE))
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53 email_starttls = C.bool(tools_config.getConfig(config, None, "email_starttls",
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54 C.BOOL_FALSE))
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55
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56 msg = MIMEText(body, "plain", "UTF-8")
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57 msg["Subject"] = subject
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58 msg["From"] = email_from
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59 msg["To"] = ", ".join(to_emails)
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60
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61 return smtp.sendmail(
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62 email_host.encode("utf-8"),
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63 email_from.encode("utf-8"),
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64 [email.encode("utf-8") for email in to_emails],
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65 msg.as_bytes(),
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66 senderDomainName=email_sender_domain.encode("utf-8") if email_sender_domain
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67 else None,
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68 port=email_port,
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69 username=email_username.encode("utf-8") if email_username else None,
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70 password=email_password.encode("utf-8") if email_password else None,
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71 requireAuthentication=email_auth,
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72 requireTransportSecurity=email_starttls,
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73 )