MatrixSynapse/synapse/rest/client/v2_alpha/account.py

660 lines
23 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2015, 2016 OpenMarket Ltd
# Copyright 2017 Vector Creations Ltd
# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import re
from six.moves import http_client
import jinja2
from twisted.internet import defer
from synapse.api.constants import LoginType
from synapse.api.errors import Codes, SynapseError, ThreepidValidationError
from synapse.http.server import finish_request
from synapse.http.servlet import (
RestServlet,
assert_params_in_dict,
parse_json_object_from_request,
parse_string,
)
from synapse.util.msisdn import phone_number_to_msisdn
from synapse.util.stringutils import random_string
from synapse.util.threepids import check_3pid_allowed
from ._base import client_patterns, interactive_auth_handler
logger = logging.getLogger(__name__)
class EmailPasswordRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/password/email/requestToken$")
def __init__(self, hs):
super(EmailPasswordRequestTokenRestServlet, self).__init__()
self.hs = hs
self.datastore = hs.get_datastore()
self.config = hs.config
self.identity_handler = hs.get_handlers().identity_handler
if self.config.email_password_reset_behaviour == "local":
from synapse.push.mailer import Mailer, load_jinja2_templates
templates = load_jinja2_templates(
config=hs.config,
template_html_name=hs.config.email_password_reset_template_html,
template_text_name=hs.config.email_password_reset_template_text,
)
self.mailer = Mailer(
hs=self.hs,
app_name=self.config.email_app_name,
template_html=templates[0],
template_text=templates[1],
)
@defer.inlineCallbacks
def on_POST(self, request):
if self.config.email_password_reset_behaviour == "off":
raise SynapseError(400, "Password resets have been disabled on this server")
body = parse_json_object_from_request(request)
assert_params_in_dict(body, [
'client_secret', 'email', 'send_attempt'
])
# Extract params from body
client_secret = body["client_secret"]
email = body["email"]
send_attempt = body["send_attempt"]
next_link = body.get("next_link") # Optional param
if not check_3pid_allowed(self.hs, "email", email):
raise SynapseError(
403,
"Your email domain is not authorized on this server",
Codes.THREEPID_DENIED,
)
existingUid = yield self.hs.get_datastore().get_user_id_by_threepid(
'email', email,
)
if existingUid is None:
raise SynapseError(400, "Email not found", Codes.THREEPID_NOT_FOUND)
if self.config.email_password_reset_behaviour == "remote":
if 'id_server' not in body:
raise SynapseError(400, "Missing 'id_server' param in body")
# Have the identity server handle the password reset flow
ret = yield self.identity_handler.requestEmailToken(
body["id_server"], email, client_secret, send_attempt, next_link,
)
else:
# Send password reset emails from Synapse
sid = yield self.send_password_reset(
email, client_secret, send_attempt, next_link,
)
# Wrap the session id in a JSON object
ret = {"sid": sid}
defer.returnValue((200, ret))
@defer.inlineCallbacks
def send_password_reset(
self,
email,
client_secret,
send_attempt,
next_link=None,
):
"""Send a password reset email
Args:
email (str): The user's email address
client_secret (str): The provided client secret
send_attempt (int): Which send attempt this is
Returns:
The new session_id upon success
Raises:
SynapseError is an error occurred when sending the email
"""
# Check that this email/client_secret/send_attempt combo is new or
# greater than what we've seen previously
session = yield self.datastore.get_threepid_validation_session(
"email", client_secret, address=email, validated=False,
)
# Check to see if a session already exists and that it is not yet
# marked as validated
if session and session.get("validated_at") is None:
session_id = session['session_id']
last_send_attempt = session['last_send_attempt']
# Check that the send_attempt is higher than previous attempts
if send_attempt <= last_send_attempt:
# If not, just return a success without sending an email
defer.returnValue(session_id)
else:
# An non-validated session does not exist yet.
# Generate a session id
session_id = random_string(16)
# Generate a new validation token
token = random_string(32)
# Send the mail with the link containing the token, client_secret
# and session_id
try:
yield self.mailer.send_password_reset_mail(
email, token, client_secret, session_id,
)
except Exception:
logger.exception(
"Error sending a password reset email to %s", email,
)
raise SynapseError(
500, "An error was encountered when sending the password reset email"
)
token_expires = (self.hs.clock.time_msec() +
self.config.email_validation_token_lifetime)
yield self.datastore.start_or_continue_validation_session(
"email", email, session_id, client_secret, send_attempt,
next_link, token, token_expires,
)
defer.returnValue(session_id)
class MsisdnPasswordRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/password/msisdn/requestToken$")
def __init__(self, hs):
super(MsisdnPasswordRequestTokenRestServlet, self).__init__()
self.hs = hs
self.datastore = self.hs.get_datastore()
self.identity_handler = hs.get_handlers().identity_handler
@defer.inlineCallbacks
def on_POST(self, request):
if not self.config.email_password_reset_behaviour == "off":
raise SynapseError(400, "Password resets have been disabled on this server")
body = parse_json_object_from_request(request)
assert_params_in_dict(body, [
'id_server', 'client_secret',
'country', 'phone_number', 'send_attempt',
])
msisdn = phone_number_to_msisdn(body['country'], body['phone_number'])
if not check_3pid_allowed(self.hs, "msisdn", msisdn):
raise SynapseError(
403,
"Account phone numbers are not authorized on this server",
Codes.THREEPID_DENIED,
)
existingUid = yield self.datastore.get_user_id_by_threepid(
'msisdn', msisdn
)
if existingUid is None:
raise SynapseError(400, "MSISDN not found", Codes.THREEPID_NOT_FOUND)
ret = yield self.identity_handler.requestMsisdnToken(**body)
defer.returnValue((200, ret))
class PasswordResetSubmitTokenServlet(RestServlet):
"""Handles 3PID validation token submission"""
PATTERNS = [
re.compile("^/_synapse/password_reset/(?P<medium>[^/]*)/submit_token/*$"),
]
def __init__(self, hs):
"""
Args:
hs (synapse.server.HomeServer): server
"""
super(PasswordResetSubmitTokenServlet, self).__init__()
self.hs = hs
self.auth = hs.get_auth()
self.config = hs.config
self.clock = hs.get_clock()
self.datastore = hs.get_datastore()
@defer.inlineCallbacks
def on_GET(self, request, medium):
if medium != "email":
raise SynapseError(
400,
"This medium is currently not supported for password resets",
)
sid = parse_string(request, "sid")
client_secret = parse_string(request, "client_secret")
token = parse_string(request, "token")
# Attempt to validate a 3PID sesssion
try:
# Mark the session as valid
next_link = yield self.datastore.validate_threepid_session(
sid,
client_secret,
token,
self.clock.time_msec(),
)
# Perform a 302 redirect if next_link is set
if next_link:
if next_link.startswith("file:///"):
logger.warn(
"Not redirecting to next_link as it is a local file: address"
)
else:
request.setResponseCode(302)
request.setHeader("Location", next_link)
finish_request(request)
defer.returnValue(None)
# Otherwise show the success template
html = self.config.email_password_reset_success_html_content
request.setResponseCode(200)
except ThreepidValidationError as e:
# Show a failure page with a reason
html = self.load_jinja2_template(
self.config.email_template_dir,
self.config.email_password_reset_failure_template,
template_vars={
"failure_reason": e.msg,
}
)
request.setResponseCode(e.code)
request.write(html.encode('utf-8'))
finish_request(request)
defer.returnValue(None)
def load_jinja2_template(self, template_dir, template_filename, template_vars):
"""Loads a jinja2 template with variables to insert
Args:
template_dir (str): The directory where templates are stored
template_filename (str): The name of the template in the template_dir
template_vars (Dict): Dictionary of keys in the template
alongside their values to insert
Returns:
str containing the contents of the rendered template
"""
loader = jinja2.FileSystemLoader(template_dir)
env = jinja2.Environment(loader=loader)
template = env.get_template(template_filename)
return template.render(**template_vars)
@defer.inlineCallbacks
def on_POST(self, request, medium):
if medium != "email":
raise SynapseError(
400,
"This medium is currently not supported for password resets",
)
body = parse_json_object_from_request(request)
assert_params_in_dict(body, [
'sid', 'client_secret', 'token',
])
valid, _ = yield self.datastore.validate_threepid_validation_token(
body['sid'],
body['client_secret'],
body['token'],
self.clock.time_msec(),
)
response_code = 200 if valid else 400
defer.returnValue((response_code, {"success": valid}))
class PasswordRestServlet(RestServlet):
PATTERNS = client_patterns("/account/password$")
def __init__(self, hs):
super(PasswordRestServlet, self).__init__()
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self.datastore = self.hs.get_datastore()
self._set_password_handler = hs.get_set_password_handler()
@interactive_auth_handler
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
# there are two possibilities here. Either the user does not have an
# access token, and needs to do a password reset; or they have one and
# need to validate their identity.
#
# In the first case, we offer a couple of means of identifying
# themselves (email and msisdn, though it's unclear if msisdn actually
# works).
#
# In the second case, we require a password to confirm their identity.
if self.auth.has_access_token(request):
requester = yield self.auth.get_user_by_req(request)
params = yield self.auth_handler.validate_user_via_ui_auth(
requester, body, self.hs.get_ip_from_request(request),
)
user_id = requester.user.to_string()
else:
requester = None
result, params, _ = yield self.auth_handler.check_auth(
[[LoginType.EMAIL_IDENTITY], [LoginType.MSISDN]],
body, self.hs.get_ip_from_request(request),
password_servlet=True,
)
if LoginType.EMAIL_IDENTITY in result:
threepid = result[LoginType.EMAIL_IDENTITY]
if 'medium' not in threepid or 'address' not in threepid:
raise SynapseError(500, "Malformed threepid")
if threepid['medium'] == 'email':
# For emails, transform the address to lowercase.
# We store all email addreses as lowercase in the DB.
# (See add_threepid in synapse/handlers/auth.py)
threepid['address'] = threepid['address'].lower()
# if using email, we must know about the email they're authing with!
threepid_user_id = yield self.datastore.get_user_id_by_threepid(
threepid['medium'], threepid['address']
)
if not threepid_user_id:
raise SynapseError(404, "Email address not found", Codes.NOT_FOUND)
user_id = threepid_user_id
else:
logger.error("Auth succeeded but no known type! %r", result.keys())
raise SynapseError(500, "", Codes.UNKNOWN)
assert_params_in_dict(params, ["new_password"])
new_password = params['new_password']
yield self._set_password_handler.set_password(
user_id, new_password, requester
)
defer.returnValue((200, {}))
def on_OPTIONS(self, _):
return 200, {}
class DeactivateAccountRestServlet(RestServlet):
PATTERNS = client_patterns("/account/deactivate$")
def __init__(self, hs):
super(DeactivateAccountRestServlet, self).__init__()
self.hs = hs
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self._deactivate_account_handler = hs.get_deactivate_account_handler()
@interactive_auth_handler
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
erase = body.get("erase", False)
if not isinstance(erase, bool):
raise SynapseError(
http_client.BAD_REQUEST,
"Param 'erase' must be a boolean, if given",
Codes.BAD_JSON,
)
requester = yield self.auth.get_user_by_req(request)
# allow ASes to dectivate their own users
if requester.app_service:
yield self._deactivate_account_handler.deactivate_account(
requester.user.to_string(), erase,
)
defer.returnValue((200, {}))
yield self.auth_handler.validate_user_via_ui_auth(
requester, body, self.hs.get_ip_from_request(request),
)
result = yield self._deactivate_account_handler.deactivate_account(
requester.user.to_string(), erase,
id_server=body.get("id_server"),
)
if result:
id_server_unbind_result = "success"
else:
id_server_unbind_result = "no-support"
defer.returnValue((200, {
"id_server_unbind_result": id_server_unbind_result,
}))
class EmailThreepidRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/email/requestToken$")
def __init__(self, hs):
self.hs = hs
super(EmailThreepidRequestTokenRestServlet, self).__init__()
self.identity_handler = hs.get_handlers().identity_handler
self.datastore = self.hs.get_datastore()
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
assert_params_in_dict(
body,
['id_server', 'client_secret', 'email', 'send_attempt'],
)
if not check_3pid_allowed(self.hs, "email", body['email']):
raise SynapseError(
403,
"Your email domain is not authorized on this server",
Codes.THREEPID_DENIED,
)
existingUid = yield self.datastore.get_user_id_by_threepid(
'email', body['email']
)
if existingUid is not None:
raise SynapseError(400, "Email is already in use", Codes.THREEPID_IN_USE)
ret = yield self.identity_handler.requestEmailToken(**body)
defer.returnValue((200, ret))
class MsisdnThreepidRequestTokenRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/msisdn/requestToken$")
def __init__(self, hs):
self.hs = hs
super(MsisdnThreepidRequestTokenRestServlet, self).__init__()
self.identity_handler = hs.get_handlers().identity_handler
self.datastore = self.hs.get_datastore()
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
assert_params_in_dict(body, [
'id_server', 'client_secret',
'country', 'phone_number', 'send_attempt',
])
msisdn = phone_number_to_msisdn(body['country'], body['phone_number'])
if not check_3pid_allowed(self.hs, "msisdn", msisdn):
raise SynapseError(
403,
"Account phone numbers are not authorized on this server",
Codes.THREEPID_DENIED,
)
existingUid = yield self.datastore.get_user_id_by_threepid(
'msisdn', msisdn
)
if existingUid is not None:
raise SynapseError(400, "MSISDN is already in use", Codes.THREEPID_IN_USE)
ret = yield self.identity_handler.requestMsisdnToken(**body)
defer.returnValue((200, ret))
class ThreepidRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid$")
def __init__(self, hs):
super(ThreepidRestServlet, self).__init__()
self.hs = hs
self.identity_handler = hs.get_handlers().identity_handler
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
self.datastore = self.hs.get_datastore()
@defer.inlineCallbacks
def on_GET(self, request):
requester = yield self.auth.get_user_by_req(request)
threepids = yield self.datastore.user_get_threepids(
requester.user.to_string()
)
defer.returnValue((200, {'threepids': threepids}))
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
threePidCreds = body.get('threePidCreds')
threePidCreds = body.get('three_pid_creds', threePidCreds)
if threePidCreds is None:
raise SynapseError(400, "Missing param", Codes.MISSING_PARAM)
requester = yield self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
threepid = yield self.identity_handler.threepid_from_creds(threePidCreds)
if not threepid:
raise SynapseError(
400, "Failed to auth 3pid", Codes.THREEPID_AUTH_FAILED
)
for reqd in ['medium', 'address', 'validated_at']:
if reqd not in threepid:
logger.warn("Couldn't add 3pid: invalid response from ID server")
raise SynapseError(500, "Invalid response from ID Server")
yield self.auth_handler.add_threepid(
user_id,
threepid['medium'],
threepid['address'],
threepid['validated_at'],
)
if 'bind' in body and body['bind']:
logger.debug(
"Binding threepid %s to %s",
threepid, user_id
)
yield self.identity_handler.bind_threepid(
threePidCreds, user_id
)
defer.returnValue((200, {}))
class ThreepidDeleteRestServlet(RestServlet):
PATTERNS = client_patterns("/account/3pid/delete$")
def __init__(self, hs):
super(ThreepidDeleteRestServlet, self).__init__()
self.auth = hs.get_auth()
self.auth_handler = hs.get_auth_handler()
@defer.inlineCallbacks
def on_POST(self, request):
body = parse_json_object_from_request(request)
assert_params_in_dict(body, ['medium', 'address'])
requester = yield self.auth.get_user_by_req(request)
user_id = requester.user.to_string()
try:
ret = yield self.auth_handler.delete_threepid(
user_id, body['medium'], body['address'], body.get("id_server"),
)
except Exception:
# NB. This endpoint should succeed if there is nothing to
# delete, so it should only throw if something is wrong
# that we ought to care about.
logger.exception("Failed to remove threepid")
raise SynapseError(500, "Failed to remove threepid")
if ret:
id_server_unbind_result = "success"
else:
id_server_unbind_result = "no-support"
defer.returnValue((200, {
"id_server_unbind_result": id_server_unbind_result,
}))
class WhoamiRestServlet(RestServlet):
PATTERNS = client_patterns("/account/whoami$")
def __init__(self, hs):
super(WhoamiRestServlet, self).__init__()
self.auth = hs.get_auth()
@defer.inlineCallbacks
def on_GET(self, request):
requester = yield self.auth.get_user_by_req(request)
defer.returnValue((200, {'user_id': requester.user.to_string()}))
def register_servlets(hs, http_server):
EmailPasswordRequestTokenRestServlet(hs).register(http_server)
MsisdnPasswordRequestTokenRestServlet(hs).register(http_server)
PasswordResetSubmitTokenServlet(hs).register(http_server)
PasswordRestServlet(hs).register(http_server)
DeactivateAccountRestServlet(hs).register(http_server)
EmailThreepidRequestTokenRestServlet(hs).register(http_server)
MsisdnThreepidRequestTokenRestServlet(hs).register(http_server)
ThreepidRestServlet(hs).register(http_server)
ThreepidDeleteRestServlet(hs).register(http_server)
WhoamiRestServlet(hs).register(http_server)