From 58367a9da2539abdbfe4dc817fba5b179b95334b Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 Mar 2015 12:59:45 +0000 Subject: Disable registration by default --- synapse/config/registration.py | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'synapse') diff --git a/synapse/config/registration.py b/synapse/config/registration.py index cca8ab5676..e603575da3 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -31,3 +31,7 @@ class RegistrationConfig(Config): action='store_true', help="Disable registration of new users." ) + + @classmethod + def generate_config(cls, args, config_dir_path): + args.disable_registration = True -- cgit 1.5.1 From 69135f59aa87962b848f9f19cad6adc625821ba8 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 Mar 2015 15:23:37 +0000 Subject: Implement registering with shared secret. --- synapse/api/constants.py | 1 + synapse/config/registration.py | 20 +++++++++++-- synapse/rest/client/v1/register.py | 57 ++++++++++++++++++++++++++++++++++++-- synapse/util/stringutils.py | 10 +++++++ 4 files changed, 83 insertions(+), 5 deletions(-) (limited to 'synapse') diff --git a/synapse/api/constants.py b/synapse/api/constants.py index 420f963d91..b16bf4247d 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -60,6 +60,7 @@ class LoginType(object): EMAIL_IDENTITY = u"m.login.email.identity" RECAPTCHA = u"m.login.recaptcha" APPLICATION_SERVICE = u"m.login.application_service" + SHARED_SECRET = u"org.matrix.login.shared_secret" class EventTypes(object): diff --git a/synapse/config/registration.py b/synapse/config/registration.py index e603575da3..6a0aaea92c 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -15,23 +15,37 @@ from ._base import Config +from synapse.util.stringutils import random_string_with_symbols + class RegistrationConfig(Config): def __init__(self, args): super(RegistrationConfig, self).__init__(args) self.disable_registration = args.disable_registration + self.registration_shared_secret = args.registration_shared_secret @classmethod def add_arguments(cls, parser): super(RegistrationConfig, cls).add_arguments(parser) reg_group = parser.add_argument_group("registration") + reg_group.add_argument( "--disable-registration", - action='store_true', - help="Disable registration of new users." + action='store_const', + const=True, + help="Disable registration of new users.", + ) + reg_group.add_argument( + "--registration-shared-secret", type=str, + help="If set, allows registration by anyone who also has the shared" + " secret, even if registration is otherwise disabled.", ) @classmethod def generate_config(cls, args, config_dir_path): - args.disable_registration = True + if args.disable_registration is None: + args.disable_registration = True + + if args.registration_shared_secret is None: + args.registration_shared_secret= random_string_with_symbols(50) diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index f5acfb945f..a7c9c5bb6f 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -110,14 +110,22 @@ class RegisterRestServlet(ClientV1RestServlet): login_type = register_json["type"] is_application_server = login_type == LoginType.APPLICATION_SERVICE - if self.disable_registration and not is_application_server: + is_using_shared_secret = login_type == LoginType.SHARED_SECRET + + can_register = ( + not self.disable_registration + or is_application_server + or is_using_shared_secret + ) + if not can_register: raise SynapseError(403, "Registration has been disabled") stages = { LoginType.RECAPTCHA: self._do_recaptcha, LoginType.PASSWORD: self._do_password, LoginType.EMAIL_IDENTITY: self._do_email_identity, - LoginType.APPLICATION_SERVICE: self._do_app_service + LoginType.APPLICATION_SERVICE: self._do_app_service, + LoginType.SHARED_SECRET: self._do_shared_secret, } session_info = self._get_session_info(request, session) @@ -304,6 +312,51 @@ class RegisterRestServlet(ClientV1RestServlet): "home_server": self.hs.hostname, }) + @defer.inlineCallbacks + def _do_shared_secret(self, request, register_json, session): + yield run_on_reactor() + + if "mac" not in register_json: + raise SynapseError(400, "Expected mac.") + if "user" not in register_json: + raise SynapseError(400, "Expected 'user' key.") + if "password" not in register_json: + raise SynapseError(400, "Expected 'password' key.") + + if not self.hs.config.registration_shared_secret: + raise SynapseError(400, "Shared secret registration is not enabled") + + user = register_json["user"].encode("utf-8") + + # str() because otherwise hmac complains that 'unicode' does not + # have the buffer interface + got_mac = str(register_json["mac"]) + + want_mac = hmac.new( + key=self.hs.config.registration_shared_secret, + msg=user, + digestmod=sha1, + ).hexdigest() + + password = register_json["password"].encode("utf-8") + + if compare_digest(want_mac, got_mac): + handler = self.handlers.registration_handler + user_id, token = yield handler.register( + localpart=user, + password=password, + ) + self._remove_session(session) + defer.returnValue({ + "user_id": user_id, + "access_token": token, + "home_server": self.hs.hostname, + }) + else: + raise SynapseError( + 400, "HMAC incorrect", + ) + def _parse_json(request): try: diff --git a/synapse/util/stringutils.py b/synapse/util/stringutils.py index ea53a8085c..52e66beaee 100644 --- a/synapse/util/stringutils.py +++ b/synapse/util/stringutils.py @@ -16,6 +16,10 @@ import random import string +_string_with_symbols = ( + string.digits + string.ascii_letters + ".,;:^&*-_+=#~@" +) + def origin_from_ucid(ucid): return ucid.split("@", 1)[1] @@ -23,3 +27,9 @@ def origin_from_ucid(ucid): def random_string(length): return ''.join(random.choice(string.ascii_letters) for _ in xrange(length)) + + +def random_string_with_symbols(length): + return ''.join( + random.choice(_string_with_symbols) for _ in xrange(length) + ) -- cgit 1.5.1 From dea236e4fa6dd9f42e2adc10858b118c814d28d4 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 Mar 2015 15:24:03 +0000 Subject: Add missing commas --- synapse/http/servlet.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'synapse') diff --git a/synapse/http/servlet.py b/synapse/http/servlet.py index a4eb6c817c..265559a3ea 100644 --- a/synapse/http/servlet.py +++ b/synapse/http/servlet.py @@ -51,8 +51,8 @@ class RestServlet(object): pattern = self.PATTERN for method in ("GET", "PUT", "POST", "OPTIONS", "DELETE"): - if hasattr(self, "on_%s" % (method)): - method_handler = getattr(self, "on_%s" % (method)) + if hasattr(self, "on_%s" % (method,)): + method_handler = getattr(self, "on_%s" % (method,)) http_server.register_path(method, pattern, method_handler) else: raise NotImplementedError("RestServlet must register something.") -- cgit 1.5.1 From 9266cb0a220f83061ccf99b9c031fb9383c55c7f Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 Mar 2015 15:26:00 +0000 Subject: PEP8 --- synapse/config/registration.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'synapse') diff --git a/synapse/config/registration.py b/synapse/config/registration.py index 6a0aaea92c..e015680d0a 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -48,4 +48,4 @@ class RegistrationConfig(Config): args.disable_registration = True if args.registration_shared_secret is None: - args.registration_shared_secret= random_string_with_symbols(50) + args.registration_shared_secret = random_string_with_symbols(50) -- cgit 1.5.1 From 98a3825614328887ad1d855d2d1076496e49be6b Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 Mar 2015 16:49:18 +0000 Subject: Allow enabling of registration with --disable-registration false --- synapse/config/registration.py | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'synapse') diff --git a/synapse/config/registration.py b/synapse/config/registration.py index e015680d0a..3fed8364c7 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -17,12 +17,17 @@ from ._base import Config from synapse.util.stringutils import random_string_with_symbols +import distutils.util + class RegistrationConfig(Config): def __init__(self, args): super(RegistrationConfig, self).__init__(args) - self.disable_registration = args.disable_registration + + self.disable_registration = bool( + distutils.util.strtobool(str(args.disable_registration)) + ) self.registration_shared_secret = args.registration_shared_secret @classmethod @@ -32,8 +37,9 @@ class RegistrationConfig(Config): reg_group.add_argument( "--disable-registration", - action='store_const', const=True, + default=True, + nargs='?', help="Disable registration of new users.", ) reg_group.add_argument( -- cgit 1.5.1 From 250e143084dd1e6d29c6378abaa3b5177323ebf9 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Mon, 16 Mar 2015 13:11:42 +0000 Subject: Use 403 instead of 400 --- synapse/rest/client/v1/register.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'synapse') diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index a7c9c5bb6f..86519fd9dd 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -354,7 +354,7 @@ class RegisterRestServlet(ClientV1RestServlet): }) else: raise SynapseError( - 400, "HMAC incorrect", + 403, "HMAC incorrect", ) -- cgit 1.5.1 From 8bad40701b00cbbedd5bf1f4c32a2f7ac77b200b Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Mon, 16 Mar 2015 13:13:07 +0000 Subject: Comment. --- synapse/config/registration.py | 3 +++ 1 file changed, 3 insertions(+) (limited to 'synapse') diff --git a/synapse/config/registration.py b/synapse/config/registration.py index 3fed8364c7..4401e774d1 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -25,6 +25,9 @@ class RegistrationConfig(Config): def __init__(self, args): super(RegistrationConfig, self).__init__(args) + # `args.disable_registration` may either be a bool or a string depending + # on if the option was given a value (e.g. --disable-registration=false + # would set `args.disable_registration` to "false" not False.) self.disable_registration = bool( distutils.util.strtobool(str(args.disable_registration)) ) -- cgit 1.5.1 From 57976f646ffe60eeb5fafce646983641fbfd7944 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 18 Mar 2015 11:30:04 +0000 Subject: Do more validation of incoming request --- synapse/rest/client/v1/register.py | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'synapse') diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index 86519fd9dd..ccc457924b 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -316,11 +316,11 @@ class RegisterRestServlet(ClientV1RestServlet): def _do_shared_secret(self, request, register_json, session): yield run_on_reactor() - if "mac" not in register_json: + if not isinstance(register_json.get("mac", None), basestring): raise SynapseError(400, "Expected mac.") - if "user" not in register_json: + if not isinstance(register_json.get("user", None), basestring): raise SynapseError(400, "Expected 'user' key.") - if "password" not in register_json: + if not isinstance(register_json.get("password", None), basestring): raise SynapseError(400, "Expected 'password' key.") if not self.hs.config.registration_shared_secret: -- cgit 1.5.1 From f88db7ac0bc36974240db869606634b817471842 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 18 Mar 2015 11:33:46 +0000 Subject: Factor out user id validation checks --- synapse/handlers/register.py | 8 ++++++++ synapse/rest/client/v1/register.py | 14 +++++--------- 2 files changed, 13 insertions(+), 9 deletions(-) (limited to 'synapse') diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index cda4a8502a..c25e321099 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -31,6 +31,7 @@ import base64 import bcrypt import json import logging +import urllib logger = logging.getLogger(__name__) @@ -63,6 +64,13 @@ class RegistrationHandler(BaseHandler): password_hash = bcrypt.hashpw(password, bcrypt.gensalt()) if localpart: + if localpart and urllib.quote(localpart) != localpart: + raise SynapseError( + 400, + "User ID must only contain characters which do not" + " require URL encoding." + ) + user = UserID(localpart, self.hs.hostname) user_id = user.to_string() diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index ccc457924b..a56834e365 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -27,7 +27,6 @@ from hashlib import sha1 import hmac import simplejson as json import logging -import urllib logger = logging.getLogger(__name__) @@ -263,14 +262,11 @@ class RegisterRestServlet(ClientV1RestServlet): ) password = register_json["password"].encode("utf-8") - desired_user_id = (register_json["user"].encode("utf-8") - if "user" in register_json else None) - if (desired_user_id - and urllib.quote(desired_user_id) != desired_user_id): - raise SynapseError( - 400, - "User ID must only contain characters which do not " + - "require URL encoding.") + desired_user_id = ( + register_json["user"].encode("utf-8") + if "user" in register_json else None + ) + handler = self.handlers.registration_handler (user_id, token) = yield handler.register( localpart=desired_user_id, -- cgit 1.5.1