Allow Synapse to send registration emails + choose Synapse or an external server to handle 3pid validation (#5987)

This is a combination of a few different PRs, finally all being merged into `develop`:

* #5875 
* #5876 
* #5868 (This one added the `/versions` flag but the flag itself was actually [backed out](891afb57cb (diff-e591d42d30690ffb79f63bb726200891)) in #5969. What's left is just giving /versions access to the config file, which could be useful in the future)
* #5835 
* #5969 
* #5940

Clients should not actually use the new registration functionality until https://github.com/matrix-org/synapse/pull/5972 is merged.

UPGRADE.rst, changelog entries and config file changes should all be reviewed closely before this PR is merged.
This commit is contained in:
Andrew Morgan 2019-09-06 11:35:28 +01:00 committed by GitHub
parent f7c873a643
commit 0c0b82b6d1
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29 changed files with 822 additions and 304 deletions

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@ -20,6 +20,7 @@ from __future__ import print_function
# This file can't be called email.py because if it is, we cannot:
import email.utils
import os
from enum import Enum
import pkg_resources
@ -74,19 +75,48 @@ class EmailConfig(Config):
"renew_at"
)
email_trust_identity_server_for_password_resets = email_config.get(
"trust_identity_server_for_password_resets", False
self.threepid_behaviour_email = (
# Have Synapse handle the email sending if account_threepid_delegates.email
# is not defined
# msisdn is currently always remote while Synapse does not support any method of
# sending SMS messages
ThreepidBehaviour.REMOTE
if self.account_threepid_delegate_email
else ThreepidBehaviour.LOCAL
)
self.email_password_reset_behaviour = (
"remote" if email_trust_identity_server_for_password_resets else "local"
)
self.password_resets_were_disabled_due_to_email_config = False
if self.email_password_reset_behaviour == "local" and email_config == {}:
# Prior to Synapse v1.4.0, there was another option that defined whether Synapse would
# use an identity server to password reset tokens on its behalf. We now warn the user
# if they have this set and tell them to use the updated option, while using a default
# identity server in the process.
self.using_identity_server_from_trusted_list = False
if (
not self.account_threepid_delegate_email
and config.get("trust_identity_server_for_password_resets", False) is True
):
# Use the first entry in self.trusted_third_party_id_servers instead
if self.trusted_third_party_id_servers:
# XXX: It's a little confusing that account_threepid_delegate_email is modified
# both in RegistrationConfig and here. We should factor this bit out
self.account_threepid_delegate_email = self.trusted_third_party_id_servers[
0
]
self.using_identity_server_from_trusted_list = True
else:
raise ConfigError(
"Attempted to use an identity server from"
'"trusted_third_party_id_servers" but it is empty.'
)
self.local_threepid_handling_disabled_due_to_email_config = False
if (
self.threepid_behaviour_email == ThreepidBehaviour.LOCAL
and email_config == {}
):
# We cannot warn the user this has happened here
# Instead do so when a user attempts to reset their password
self.password_resets_were_disabled_due_to_email_config = True
self.local_threepid_handling_disabled_due_to_email_config = True
self.email_password_reset_behaviour = "off"
self.threepid_behaviour_email = ThreepidBehaviour.OFF
# Get lifetime of a validation token in milliseconds
self.email_validation_token_lifetime = self.parse_duration(
@ -96,7 +126,7 @@ class EmailConfig(Config):
if (
self.email_enable_notifs
or account_validity_renewal_enabled
or self.email_password_reset_behaviour == "local"
or self.threepid_behaviour_email == ThreepidBehaviour.LOCAL
):
# make sure we can import the required deps
import jinja2
@ -106,7 +136,7 @@ class EmailConfig(Config):
jinja2
bleach
if self.email_password_reset_behaviour == "local":
if self.threepid_behaviour_email == ThreepidBehaviour.LOCAL:
required = ["smtp_host", "smtp_port", "notif_from"]
missing = []
@ -125,28 +155,45 @@ class EmailConfig(Config):
% (", ".join(missing),)
)
# Templates for password reset emails
# These email templates have placeholders in them, and thus must be
# parsed using a templating engine during a request
self.email_password_reset_template_html = email_config.get(
"password_reset_template_html", "password_reset.html"
)
self.email_password_reset_template_text = email_config.get(
"password_reset_template_text", "password_reset.txt"
)
self.email_registration_template_html = email_config.get(
"registration_template_html", "registration.html"
)
self.email_registration_template_text = email_config.get(
"registration_template_text", "registration.txt"
)
self.email_password_reset_template_failure_html = email_config.get(
"password_reset_template_failure_html", "password_reset_failure.html"
)
# This template does not support any replaceable variables, so we will
# read it from the disk once during setup
self.email_registration_template_failure_html = email_config.get(
"registration_template_failure_html", "registration_failure.html"
)
# These templates do not support any placeholder variables, so we
# will read them from disk once during setup
email_password_reset_template_success_html = email_config.get(
"password_reset_template_success_html", "password_reset_success.html"
)
email_registration_template_success_html = email_config.get(
"registration_template_success_html", "registration_success.html"
)
# Check templates exist
for f in [
self.email_password_reset_template_html,
self.email_password_reset_template_text,
self.email_registration_template_html,
self.email_registration_template_text,
self.email_password_reset_template_failure_html,
email_password_reset_template_success_html,
email_registration_template_success_html,
]:
p = os.path.join(self.email_template_dir, f)
if not os.path.isfile(p):
@ -156,9 +203,15 @@ class EmailConfig(Config):
filepath = os.path.join(
self.email_template_dir, email_password_reset_template_success_html
)
self.email_password_reset_template_success_html_content = self.read_file(
self.email_password_reset_template_success_html = self.read_file(
filepath, "email.password_reset_template_success_html"
)
filepath = os.path.join(
self.email_template_dir, email_registration_template_success_html
)
self.email_registration_template_success_html_content = self.read_file(
filepath, "email.registration_template_success_html"
)
if self.email_enable_notifs:
required = [
@ -239,19 +292,6 @@ class EmailConfig(Config):
# #
# riot_base_url: "http://localhost/riot"
#
# # Enable sending password reset emails via the configured, trusted
# # identity servers
# #
# # IMPORTANT! This will give a malicious or overtaken identity server
# # the ability to reset passwords for your users! Make absolutely sure
# # that you want to do this! It is strongly recommended that password
# # reset emails be sent by the homeserver instead
# #
# # If this option is set to false and SMTP options have not been
# # configured, resetting user passwords via email will be disabled
# #
# #trust_identity_server_for_password_resets: false
#
# # Configure the time that a validation email or text message code
# # will expire after sending
# #
@ -283,9 +323,35 @@ class EmailConfig(Config):
# #password_reset_template_html: password_reset.html
# #password_reset_template_text: password_reset.txt
#
# # Templates for registration emails sent by the homeserver
# #
# #registration_template_html: registration.html
# #registration_template_text: registration.txt
#
# # Templates for password reset success and failure pages that a user
# # will see after attempting to reset their password
# #
# #password_reset_template_success_html: password_reset_success.html
# #password_reset_template_failure_html: password_reset_failure.html
#
# # Templates for registration success and failure pages that a user
# # will see after attempting to register using an email or phone
# #
# #registration_template_success_html: registration_success.html
# #registration_template_failure_html: registration_failure.html
"""
class ThreepidBehaviour(Enum):
"""
Enum to define the behaviour of Synapse with regards to when it contacts an identity
server for 3pid registration and password resets
REMOTE = use an external server to send tokens
LOCAL = send tokens ourselves
OFF = disable registration via 3pid and password resets
"""
REMOTE = "remote"
LOCAL = "local"
OFF = "off"