diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/auth.py | 3 | ||||
| -rw-r--r-- | synapse/config/key.py | 5 | ||||
| -rw-r--r-- | synapse/config/registration.py | 6 | ||||
| -rw-r--r-- | synapse/handlers/auth.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 53 | ||||
| -rw-r--r-- | synapse/rest/client/v1/register.py | 71 |
6 files changed, 139 insertions, 3 deletions
diff --git a/synapse/api/auth.py b/synapse/api/auth.py index d3e9837c81..44e38b777a 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -612,7 +612,8 @@ class Auth(object): def get_user_from_macaroon(self, macaroon_str): try: macaroon = pymacaroons.Macaroon.deserialize(macaroon_str) - self.validate_macaroon(macaroon, "access", False) + + self.validate_macaroon(macaroon, "access", self.hs.config.expire_access_token) user_prefix = "user_id = " user = None diff --git a/synapse/config/key.py b/synapse/config/key.py index a072aec714..6ee643793e 100644 --- a/synapse/config/key.py +++ b/synapse/config/key.py @@ -57,6 +57,8 @@ class KeyConfig(Config): seed = self.signing_key[0].seed self.macaroon_secret_key = hashlib.sha256(seed) + self.expire_access_token = config.get("expire_access_token", False) + def default_config(self, config_dir_path, server_name, is_generating_file=False, **kwargs): base_key_name = os.path.join(config_dir_path, server_name) @@ -69,6 +71,9 @@ class KeyConfig(Config): return """\ macaroon_secret_key: "%(macaroon_secret_key)s" + # Used to enable access token expiration. + expire_access_token: False + ## Signing Keys ## # Path to the signing key to sign messages with diff --git a/synapse/config/registration.py b/synapse/config/registration.py index 87e500c97a..cc3f879857 100644 --- a/synapse/config/registration.py +++ b/synapse/config/registration.py @@ -32,6 +32,7 @@ class RegistrationConfig(Config): ) self.registration_shared_secret = config.get("registration_shared_secret") + self.user_creation_max_duration = int(config["user_creation_max_duration"]) self.bcrypt_rounds = config.get("bcrypt_rounds", 12) self.trusted_third_party_id_servers = config["trusted_third_party_id_servers"] @@ -54,6 +55,11 @@ class RegistrationConfig(Config): # secret, even if registration is otherwise disabled. registration_shared_secret: "%(registration_shared_secret)s" + # Sets the expiry for the short term user creation in + # milliseconds. For instance the bellow duration is two weeks + # in milliseconds. + user_creation_max_duration: 1209600000 + # Set the number of bcrypt rounds used to generate password hash. # Larger numbers increase the work factor needed to generate the hash. # The default number of rounds is 12. diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 61fe56032a..3d36d3460e 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -521,11 +521,11 @@ class AuthHandler(BaseHandler): )) return m.serialize() - def generate_short_term_login_token(self, user_id): + def generate_short_term_login_token(self, user_id, duration_in_ms=(2 * 60 * 1000)): macaroon = self._generate_base_macaroon(user_id) macaroon.add_first_party_caveat("type = login") now = self.hs.get_clock().time_msec() - expiry = now + (2 * 60 * 1000) + expiry = now + duration_in_ms macaroon.add_first_party_caveat("time < %d" % (expiry,)) return macaroon.serialize() diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index b0862067e1..5883b9111e 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -358,6 +358,59 @@ class RegistrationHandler(BaseHandler): ) defer.returnValue(data) + @defer.inlineCallbacks + def get_or_create_user(self, localpart, displayname, duration_seconds): + """Creates a new user or returns an access token for an existing one + + Args: + localpart : The local part of the user ID to register. If None, + one will be randomly generated. + Returns: + A tuple of (user_id, access_token). + Raises: + RegistrationError if there was a problem registering. + """ + yield run_on_reactor() + + if localpart is None: + raise SynapseError(400, "Request must include user id") + + need_register = True + + try: + yield self.check_username(localpart) + except SynapseError as e: + if e.errcode == Codes.USER_IN_USE: + need_register = False + else: + raise + + user = UserID(localpart, self.hs.hostname) + user_id = user.to_string() + auth_handler = self.hs.get_handlers().auth_handler + token = auth_handler.generate_short_term_login_token(user_id, duration_seconds) + + if need_register: + yield self.store.register( + user_id=user_id, + token=token, + password_hash=None + ) + + yield registered_user(self.distributor, user) + else: + yield self.store.flush_user(user_id=user_id) + yield self.store.add_access_token_to_user(user_id=user_id, token=token) + + if displayname is not None: + logger.info("setting user display name: %s -> %s", user_id, displayname) + profile_handler = self.hs.get_handlers().profile_handler + yield profile_handler.set_displayname( + user, user, displayname + ) + + defer.returnValue((user_id, token)) + def auth_handler(self): return self.hs.get_handlers().auth_handler diff --git a/synapse/rest/client/v1/register.py b/synapse/rest/client/v1/register.py index c6a2ef2ccc..e3f4fbb0bb 100644 --- a/synapse/rest/client/v1/register.py +++ b/synapse/rest/client/v1/register.py @@ -355,5 +355,76 @@ class RegisterRestServlet(ClientV1RestServlet): ) +class CreateUserRestServlet(ClientV1RestServlet): + """Handles user creation via a server-to-server interface + """ + + PATTERNS = client_path_patterns("/createUser$", releases=()) + + def __init__(self, hs): + super(CreateUserRestServlet, self).__init__(hs) + self.store = hs.get_datastore() + self.direct_user_creation_max_duration = hs.config.user_creation_max_duration + + @defer.inlineCallbacks + def on_POST(self, request): + user_json = parse_json_object_from_request(request) + + if "access_token" not in request.args: + raise SynapseError(400, "Expected application service token.") + + app_service = yield self.store.get_app_service_by_token( + request.args["access_token"][0] + ) + if not app_service: + raise SynapseError(403, "Invalid application service token.") + + logger.debug("creating user: %s", user_json) + + response = yield self._do_create(user_json) + + defer.returnValue((200, response)) + + def on_OPTIONS(self, request): + return 403, {} + + @defer.inlineCallbacks + def _do_create(self, user_json): + yield run_on_reactor() + + if "localpart" not in user_json: + raise SynapseError(400, "Expected 'localpart' key.") + + if "displayname" not in user_json: + raise SynapseError(400, "Expected 'displayname' key.") + + if "duration_seconds" not in user_json: + raise SynapseError(400, "Expected 'duration_seconds' key.") + + localpart = user_json["localpart"].encode("utf-8") + displayname = user_json["displayname"].encode("utf-8") + duration_seconds = 0 + try: + duration_seconds = int(user_json["duration_seconds"]) + except ValueError: + raise SynapseError(400, "Failed to parse 'duration_seconds'") + if duration_seconds > self.direct_user_creation_max_duration: + duration_seconds = self.direct_user_creation_max_duration + + handler = self.handlers.registration_handler + user_id, token = yield handler.get_or_create_user( + localpart=localpart, + displayname=displayname, + duration_seconds=duration_seconds + ) + + defer.returnValue({ + "user_id": user_id, + "access_token": token, + "home_server": self.hs.hostname, + }) + + def register_servlets(hs, http_server): RegisterRestServlet(hs).register(http_server) + CreateUserRestServlet(hs).register(http_server) |