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Merge pull request #2813 from matrix-org/matthew/registrations_require_3pid
add registrations_require_3pid and allow_local_3pids
This commit is contained in:
commit
d84f65255e
@ -46,6 +46,7 @@ class Codes(object):
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THREEPID_AUTH_FAILED = "M_THREEPID_AUTH_FAILED"
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THREEPID_IN_USE = "M_THREEPID_IN_USE"
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THREEPID_NOT_FOUND = "M_THREEPID_NOT_FOUND"
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THREEPID_DENIED = "M_THREEPID_DENIED"
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INVALID_USERNAME = "M_INVALID_USERNAME"
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SERVER_NOT_TRUSTED = "M_SERVER_NOT_TRUSTED"
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@ -31,6 +31,8 @@ class RegistrationConfig(Config):
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strtobool(str(config["disable_registration"]))
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)
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self.registrations_require_3pid = config.get("registrations_require_3pid", [])
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self.allowed_local_3pids = config.get("allowed_local_3pids", [])
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self.registration_shared_secret = config.get("registration_shared_secret")
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self.bcrypt_rounds = config.get("bcrypt_rounds", 12)
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@ -52,6 +54,23 @@ class RegistrationConfig(Config):
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# Enable registration for new users.
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enable_registration: False
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# The user must provide all of the below types of 3PID when registering.
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#
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# registrations_require_3pid:
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# - email
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# - msisdn
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# Mandate that users are only allowed to associate certain formats of
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# 3PIDs with accounts on this server.
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#
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# allowed_local_3pids:
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# - medium: email
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# pattern: ".*@matrix\\.org"
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# - medium: email
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# pattern: ".*@vector\\.im"
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# - medium: msisdn
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# pattern: "\\+44"
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# If set, allows registration by anyone who also has the shared
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# secret, even if registration is otherwise disabled.
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registration_shared_secret: "%(registration_shared_secret)s"
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@ -25,6 +25,7 @@ from synapse.http.client import CaptchaServerHttpClient
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from synapse import types
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from synapse.types import UserID
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from synapse.util.async import run_on_reactor
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from synapse.util.threepids import check_3pid_allowed
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from ._base import BaseHandler
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logger = logging.getLogger(__name__)
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@ -293,7 +294,7 @@ class RegistrationHandler(BaseHandler):
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"""
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for c in threepidCreds:
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logger.info("validating theeepidcred sid %s on id server %s",
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logger.info("validating threepidcred sid %s on id server %s",
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c['sid'], c['idServer'])
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try:
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identity_handler = self.hs.get_handlers().identity_handler
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@ -307,6 +308,11 @@ class RegistrationHandler(BaseHandler):
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logger.info("got threepid with medium '%s' and address '%s'",
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threepid['medium'], threepid['address'])
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if not check_3pid_allowed(self.hs, threepid['medium'], threepid['address']):
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raise RegistrationError(
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403, "Third party identifier is not allowed"
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)
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@defer.inlineCallbacks
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def bind_emails(self, user_id, threepidCreds):
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"""Links emails with a user ID and informs an identity server.
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@ -70,10 +70,15 @@ class RegisterRestServlet(ClientV1RestServlet):
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self.handlers = hs.get_handlers()
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def on_GET(self, request):
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require_email = 'email' in self.hs.config.registrations_require_3pid
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require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid
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flows = []
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if self.hs.config.enable_registration_captcha:
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return (
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200,
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{"flows": [
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# only support the email-only flow if we don't require MSISDN 3PIDs
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if not require_msisdn:
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flows.extend([
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{
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"type": LoginType.RECAPTCHA,
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"stages": [
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@ -82,27 +87,34 @@ class RegisterRestServlet(ClientV1RestServlet):
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LoginType.PASSWORD
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]
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},
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])
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# only support 3PIDless registration if no 3PIDs are required
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if not require_email and not require_msisdn:
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flows.extend([
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{
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"type": LoginType.RECAPTCHA,
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"stages": [LoginType.RECAPTCHA, LoginType.PASSWORD]
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}
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]}
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)
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])
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else:
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return (
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200,
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{"flows": [
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# only support the email-only flow if we don't require MSISDN 3PIDs
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if require_email or not require_msisdn:
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flows.extend([
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{
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"type": LoginType.EMAIL_IDENTITY,
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"stages": [
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LoginType.EMAIL_IDENTITY, LoginType.PASSWORD
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]
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},
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}
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])
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# only support 3PIDless registration if no 3PIDs are required
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if not require_email and not require_msisdn:
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flows.extend([
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{
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"type": LoginType.PASSWORD
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}
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]}
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)
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])
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return (200, {"flows": flows})
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@defer.inlineCallbacks
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def on_POST(self, request):
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@ -26,6 +26,7 @@ from synapse.http.servlet import (
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)
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from synapse.util.async import run_on_reactor
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from synapse.util.msisdn import phone_number_to_msisdn
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from synapse.util.threepids import check_3pid_allowed
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from ._base import client_v2_patterns, interactive_auth_handler
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logger = logging.getLogger(__name__)
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@ -47,6 +48,11 @@ class EmailPasswordRequestTokenRestServlet(RestServlet):
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'id_server', 'client_secret', 'email', 'send_attempt'
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])
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if not check_3pid_allowed(self.hs, "email", body['email']):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.hs.get_datastore().get_user_id_by_threepid(
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'email', body['email']
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)
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@ -78,6 +84,11 @@ class MsisdnPasswordRequestTokenRestServlet(RestServlet):
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msisdn = phone_number_to_msisdn(body['country'], body['phone_number'])
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if not check_3pid_allowed(self.hs, "msisdn", msisdn):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.datastore.get_user_id_by_threepid(
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'msisdn', msisdn
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)
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@ -217,6 +228,11 @@ class EmailThreepidRequestTokenRestServlet(RestServlet):
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if absent:
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raise SynapseError(400, "Missing params: %r" % absent, Codes.MISSING_PARAM)
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if not check_3pid_allowed(self.hs, "email", body['email']):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.datastore.get_user_id_by_threepid(
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'email', body['email']
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)
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@ -255,6 +271,11 @@ class MsisdnThreepidRequestTokenRestServlet(RestServlet):
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msisdn = phone_number_to_msisdn(body['country'], body['phone_number'])
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if not check_3pid_allowed(self.hs, "msisdn", msisdn):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.datastore.get_user_id_by_threepid(
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'msisdn', msisdn
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)
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@ -26,6 +26,7 @@ from synapse.http.servlet import (
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RestServlet, parse_json_object_from_request, assert_params_in_request, parse_string
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)
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from synapse.util.msisdn import phone_number_to_msisdn
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from synapse.util.threepids import check_3pid_allowed
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from ._base import client_v2_patterns, interactive_auth_handler
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@ -70,6 +71,11 @@ class EmailRegisterRequestTokenRestServlet(RestServlet):
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'id_server', 'client_secret', 'email', 'send_attempt'
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])
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if not check_3pid_allowed(self.hs, "email", body['email']):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.hs.get_datastore().get_user_id_by_threepid(
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'email', body['email']
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)
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@ -105,6 +111,11 @@ class MsisdnRegisterRequestTokenRestServlet(RestServlet):
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msisdn = phone_number_to_msisdn(body['country'], body['phone_number'])
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if not check_3pid_allowed(self.hs, "msisdn", msisdn):
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raise SynapseError(
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403, "Third party identifier is not allowed", Codes.THREEPID_DENIED,
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)
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existingUid = yield self.hs.get_datastore().get_user_id_by_threepid(
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'msisdn', msisdn
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)
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@ -305,31 +316,67 @@ class RegisterRestServlet(RestServlet):
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if 'x_show_msisdn' in body and body['x_show_msisdn']:
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show_msisdn = True
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# FIXME: need a better error than "no auth flow found" for scenarios
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# where we required 3PID for registration but the user didn't give one
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require_email = 'email' in self.hs.config.registrations_require_3pid
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require_msisdn = 'msisdn' in self.hs.config.registrations_require_3pid
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flows = []
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if self.hs.config.enable_registration_captcha:
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flows = [
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[LoginType.RECAPTCHA],
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[LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA],
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]
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# only support 3PIDless registration if no 3PIDs are required
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if not require_email and not require_msisdn:
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flows.extend([[LoginType.RECAPTCHA]])
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# only support the email-only flow if we don't require MSISDN 3PIDs
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if not require_msisdn:
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flows.extend([[LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA]])
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if show_msisdn:
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# only support the MSISDN-only flow if we don't require email 3PIDs
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if not require_email:
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flows.extend([[LoginType.MSISDN, LoginType.RECAPTCHA]])
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# always let users provide both MSISDN & email
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flows.extend([
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[LoginType.MSISDN, LoginType.RECAPTCHA],
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[LoginType.MSISDN, LoginType.EMAIL_IDENTITY, LoginType.RECAPTCHA],
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])
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else:
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flows = [
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[LoginType.DUMMY],
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[LoginType.EMAIL_IDENTITY],
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]
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# only support 3PIDless registration if no 3PIDs are required
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if not require_email and not require_msisdn:
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flows.extend([[LoginType.DUMMY]])
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# only support the email-only flow if we don't require MSISDN 3PIDs
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if not require_msisdn:
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flows.extend([[LoginType.EMAIL_IDENTITY]])
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if show_msisdn:
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# only support the MSISDN-only flow if we don't require email 3PIDs
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if not require_email or require_msisdn:
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flows.extend([[LoginType.MSISDN]])
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# always let users provide both MSISDN & email
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flows.extend([
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[LoginType.MSISDN],
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[LoginType.MSISDN, LoginType.EMAIL_IDENTITY],
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[LoginType.MSISDN, LoginType.EMAIL_IDENTITY]
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])
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auth_result, params, session_id = yield self.auth_handler.check_auth(
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flows, body, self.hs.get_ip_from_request(request)
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)
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# Check that we're not trying to register a denied 3pid.
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#
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# the user-facing checks will probably already have happened in
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# /register/email/requestToken when we requested a 3pid, but that's not
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# guaranteed.
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if auth_result:
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for login_type in [LoginType.EMAIL_IDENTITY, LoginType.MSISDN]:
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if login_type in auth_result:
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medium = auth_result[login_type].threepid['medium']
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address = auth_result[login_type].threepid['address']
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if not check_3pid_allowed(self.hs, medium, address):
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raise SynapseError(
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403, "Third party identifier is not allowed",
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Codes.THREEPID_DENIED,
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)
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if registered_user_id is not None:
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logger.info(
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"Already registered user ID %r for this session",
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48
synapse/util/threepids.py
Normal file
48
synapse/util/threepids.py
Normal file
@ -0,0 +1,48 @@
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# -*- coding: utf-8 -*-
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# Copyright 2018 New Vector Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import re
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logger = logging.getLogger(__name__)
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def check_3pid_allowed(hs, medium, address):
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"""Checks whether a given format of 3PID is allowed to be used on this HS
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Args:
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hs (synapse.server.HomeServer): server
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medium (str): 3pid medium - e.g. email, msisdn
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address (str): address within that medium (e.g. "wotan@matrix.org")
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msisdns need to first have been canonicalised
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Returns:
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bool: whether the 3PID medium/address is allowed to be added to this HS
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"""
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if hs.config.allowed_local_3pids:
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for constraint in hs.config.allowed_local_3pids:
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logger.debug(
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"Checking 3PID %s (%s) against %s (%s)",
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address, medium, constraint['pattern'], constraint['medium'],
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)
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if (
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medium == constraint['medium'] and
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re.match(constraint['pattern'], address)
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):
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return True
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else:
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return True
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return False
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@ -49,6 +49,7 @@ class RegisterRestServletTestCase(unittest.TestCase):
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self.hs.get_auth_handler = Mock(return_value=self.auth_handler)
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self.hs.get_device_handler = Mock(return_value=self.device_handler)
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self.hs.config.enable_registration = True
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self.hs.config.registrations_require_3pid = []
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self.hs.config.auto_join_rooms = []
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# init the thing we're testing
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