diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/constants.py | 9 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 120 | ||||
| -rw-r--r-- | synapse/rest/register.py | 241 |
3 files changed, 256 insertions, 114 deletions
diff --git a/synapse/api/constants.py b/synapse/api/constants.py index fcef062fc9..618d3d7577 100644 --- a/synapse/api/constants.py +++ b/synapse/api/constants.py @@ -50,3 +50,12 @@ class JoinRules(object): KNOCK = u"knock" INVITE = u"invite" PRIVATE = u"private" + + +class LoginType(object): + PASSWORD = u"m.login.password" + OAUTH = u"m.login.oauth2" + EMAIL_CODE = u"m.login.email.code" + EMAIL_URL = u"m.login.email.url" + EMAIL_IDENTITY = u"m.login.email.identity" + RECAPTCHA = u"m.login.recaptcha" \ No newline at end of file diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index 0b841d6d3a..a019d770d4 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -40,8 +40,7 @@ class RegistrationHandler(BaseHandler): self.distributor.declare("registered_user") @defer.inlineCallbacks - def register(self, localpart=None, password=None, threepidCreds=None, - captcha_info={}): + def register(self, localpart=None, password=None): """Registers a new client on the server. Args: @@ -54,37 +53,6 @@ class RegistrationHandler(BaseHandler): Raises: RegistrationError if there was a problem registering. """ - if captcha_info: - captcha_response = yield self._validate_captcha( - captcha_info["ip"], - captcha_info["private_key"], - captcha_info["challenge"], - captcha_info["response"] - ) - if not captcha_response["valid"]: - logger.info("Invalid captcha entered from %s. Error: %s", - captcha_info["ip"], captcha_response["error_url"]) - raise InvalidCaptchaError( - error_url=captcha_response["error_url"] - ) - else: - logger.info("Valid captcha entered from %s", captcha_info["ip"]) - - if threepidCreds: - for c in threepidCreds: - logger.info("validating theeepidcred sid %s on id server %s", - c['sid'], c['idServer']) - try: - threepid = yield self._threepid_from_creds(c) - except: - logger.err() - raise RegistrationError(400, "Couldn't validate 3pid") - - if not threepid: - raise RegistrationError(400, "Couldn't validate 3pid") - logger.info("got threepid medium %s address %s", - threepid['medium'], threepid['address']) - password_hash = None if password: password_hash = bcrypt.hashpw(password, bcrypt.gensalt()) @@ -126,15 +94,54 @@ class RegistrationHandler(BaseHandler): raise RegistrationError( 500, "Cannot generate user ID.") - # Now we have a matrix ID, bind it to the threepids we were given - if threepidCreds: - for c in threepidCreds: - # XXX: This should be a deferred list, shouldn't it? - yield self._bind_threepid(c, user_id) - - defer.returnValue((user_id, token)) + @defer.inlineCallbacks + def check_recaptcha(self, ip, private_key, challenge, response): + """Checks a recaptcha is correct.""" + + captcha_response = yield self._validate_captcha( + ip, + private_key, + challenge, + response + ) + if not captcha_response["valid"]: + logger.info("Invalid captcha entered from %s. Error: %s", + ip, captcha_response["error_url"]) + raise InvalidCaptchaError( + error_url=captcha_response["error_url"] + ) + else: + logger.info("Valid captcha entered from %s", ip) + + @defer.inlineCallbacks + def register_email(self, threepidCreds): + """Registers emails with an identity server.""" + + for c in threepidCreds: + logger.info("validating theeepidcred sid %s on id server %s", + c['sid'], c['idServer']) + try: + threepid = yield self._threepid_from_creds(c) + except: + logger.err() + raise RegistrationError(400, "Couldn't validate 3pid") + + if not threepid: + raise RegistrationError(400, "Couldn't validate 3pid") + logger.info("got threepid medium %s address %s", + threepid['medium'], threepid['address']) + + @defer.inlineCallbacks + def bind_emails(self, user_id, threepidCreds): + """Links emails with a user ID and informs an identity server.""" + + # Now we have a matrix ID, bind it to the threepids we were given + for c in threepidCreds: + # XXX: This should be a deferred list, shouldn't it? + yield self._bind_threepid(c, user_id) + def _generate_token(self, user_id): # urlsafe variant uses _ and - so use . as the separator and replace # all =s with .s so http clients don't quote =s when it is used as @@ -149,17 +156,17 @@ class RegistrationHandler(BaseHandler): def _threepid_from_creds(self, creds): httpCli = PlainHttpClient(self.hs) # XXX: make this configurable! - trustedIdServers = [ 'matrix.org:8090' ] + trustedIdServers = ['matrix.org:8090'] if not creds['idServer'] in trustedIdServers: - logger.warn('%s is not a trusted ID server: rejecting 3pid '+ + logger.warn('%s is not a trusted ID server: rejecting 3pid ' + 'credentials', creds['idServer']) defer.returnValue(None) data = yield httpCli.get_json( creds['idServer'], "/_matrix/identity/api/v1/3pid/getValidated3pid", - { 'sid': creds['sid'], 'clientSecret': creds['clientSecret'] } + {'sid': creds['sid'], 'clientSecret': creds['clientSecret']} ) - + if 'medium' in data: defer.returnValue(data) defer.returnValue(None) @@ -170,44 +177,45 @@ class RegistrationHandler(BaseHandler): data = yield httpCli.post_urlencoded_get_json( creds['idServer'], "/_matrix/identity/api/v1/3pid/bind", - { 'sid': creds['sid'], 'clientSecret': creds['clientSecret'], - 'mxid':mxid } + {'sid': creds['sid'], 'clientSecret': creds['clientSecret'], + 'mxid': mxid} ) defer.returnValue(data) - + @defer.inlineCallbacks def _validate_captcha(self, ip_addr, private_key, challenge, response): """Validates the captcha provided. - + Returns: dict: Containing 'valid'(bool) and 'error_url'(str) if invalid. - + """ - response = yield self._submit_captcha(ip_addr, private_key, challenge, + response = yield self._submit_captcha(ip_addr, private_key, challenge, response) # parse Google's response. Lovely format.. lines = response.split('\n') json = { "valid": lines[0] == 'true', - "error_url": "http://www.google.com/recaptcha/api/challenge?"+ + "error_url": "http://www.google.com/recaptcha/api/challenge?" + "error=%s" % lines[1] } defer.returnValue(json) - + @defer.inlineCallbacks def _submit_captcha(self, ip_addr, private_key, challenge, response): client = PlainHttpClient(self.hs) data = yield client.post_urlencoded_get_raw( "www.google.com:80", "/recaptcha/api/verify", - accept_partial=True, # twisted dislikes google's response, no content length. - args={ - 'privatekey': private_key, + # twisted dislikes google's response, no content length. + accept_partial=True, + args={ + 'privatekey': private_key, 'remoteip': ip_addr, 'challenge': challenge, 'response': response } ) defer.returnValue(data) - + diff --git a/synapse/rest/register.py b/synapse/rest/register.py index 48d3c6eca0..fe8f0ed23f 100644 --- a/synapse/rest/register.py +++ b/synapse/rest/register.py @@ -17,89 +17,214 @@ from twisted.internet import defer from synapse.api.errors import SynapseError, Codes +from synapse.api.constants import LoginType from base import RestServlet, client_path_pattern +import synapse.util.stringutils as stringutils import json +import logging import urllib +logger = logging.getLogger(__name__) + class RegisterRestServlet(RestServlet): + """Handles registration with the home server. + + This servlet is in control of the registration flow; the registration + handler doesn't have a concept of multi-stages or sessions. + """ + PATTERN = client_path_pattern("/register$") + def __init__(self, hs): + super(RegisterRestServlet, self).__init__(hs) + # sessions are stored as: + # self.sessions = { + # "session_id" : { __session_dict__ } + # } + # TODO: persistent storage + self.sessions = {} + + def on_GET(self, request): + if self.hs.config.enable_registration_captcha: + return (200, { + "flows": [ + { + "type": LoginType.RECAPTCHA, + "stages": ([LoginType.RECAPTCHA, + LoginType.EMAIL_IDENTITY, + LoginType.PASSWORD]) + }, + { + "type": LoginType.RECAPTCHA, + "stages": [LoginType.RECAPTCHA, LoginType.PASSWORD] + } + ] + }) + else: + return (200, { + "flows": [ + { + "type": LoginType.EMAIL_IDENTITY, + "stages": ([LoginType.EMAIL_IDENTITY, + LoginType.PASSWORD]) + }, + { + "type": LoginType.PASSWORD + } + ] + }) + @defer.inlineCallbacks def on_POST(self, request): - desired_user_id = None - password = None + register_json = _parse_json(request) + + session = (register_json["session"] if "session" in register_json + else None) try: - register_json = json.loads(request.content.read()) - if "password" in register_json: - password = register_json["password"].encode("utf-8") - - if type(register_json["user_id"]) == unicode: - desired_user_id = register_json["user_id"].encode("utf-8") - if urllib.quote(desired_user_id) != desired_user_id: - raise SynapseError( - 400, - "User ID must only contain characters which do not " + - "require URL encoding.") - except ValueError: - defer.returnValue((400, "No JSON object.")) - except KeyError: - pass # user_id is optional + login_type = register_json["type"] + stages = { + LoginType.RECAPTCHA: self._do_recaptcha, + LoginType.PASSWORD: self._do_password, + LoginType.EMAIL_IDENTITY: self._do_email_identity + } - threepidCreds = None - if 'threepidCreds' in register_json: - threepidCreds = register_json['threepidCreds'] - - captcha = {} - if self.hs.config.enable_registration_captcha: - challenge = None - user_response = None - try: - captcha_type = register_json["captcha"]["type"] - if captcha_type != "m.login.recaptcha": - raise SynapseError(400, "Sorry, only m.login.recaptcha " + - "requests are supported.") - challenge = register_json["captcha"]["challenge"] - user_response = register_json["captcha"]["response"] - except KeyError: - raise SynapseError(400, "Captcha response is required", - errcode=Codes.CAPTCHA_NEEDED) - - # TODO determine the source IP : May be an X-Forwarding-For header depending on config - ip_addr = request.getClientIP() - if self.hs.config.captcha_ip_origin_is_x_forwarded: - # use the header - if request.requestHeaders.hasHeader("X-Forwarded-For"): - ip_addr = request.requestHeaders.getRawHeaders( - "X-Forwarded-For")[0] - - captcha = { - "ip": ip_addr, - "private_key": self.hs.config.recaptcha_private_key, - "challenge": challenge, - "response": user_response + session_info = self._get_session_info(request, session) + logger.debug("%s : session info %s request info %s", + login_type, session_info, register_json) + response = yield stages[login_type]( + request, + register_json, + session_info + ) + + if "access_token" not in response: + # isn't a final response + response["session"] = session_info["id"] + + defer.returnValue((200, response)) + except KeyError as e: + logger.exception(e) + raise SynapseError(400, "Missing JSON keys or bad login type.") + + def on_OPTIONS(self, request): + return (200, {}) + + def _get_session_info(self, request, session_id): + if not session_id: + # create a new session + while session_id is None or session_id in self.sessions: + session_id = stringutils.random_string(24) + self.sessions[session_id] = { + "id": session_id, + LoginType.EMAIL_IDENTITY: False, + LoginType.RECAPTCHA: False } - + return self.sessions[session_id] + + def _save_session(self, session): + # TODO: Persistent storage + logger.debug("Saving session %s", session) + self.sessions[session["id"]] = session + + def _remove_session(self, session): + logger.debug("Removing session %s", session) + self.sessions.pop(session["id"]) + + @defer.inlineCallbacks + def _do_recaptcha(self, request, register_json, session): + if not self.hs.config.enable_registration_captcha: + raise SynapseError(400, "Captcha not required.") + + challenge = None + user_response = None + try: + challenge = register_json["challenge"] + user_response = register_json["response"] + except KeyError: + raise SynapseError(400, "Captcha response is required", + errcode=Codes.CAPTCHA_NEEDED) + + # May be an X-Forwarding-For header depending on config + ip_addr = request.getClientIP() + if self.hs.config.captcha_ip_origin_is_x_forwarded: + # use the header + if request.requestHeaders.hasHeader("X-Forwarded-For"): + ip_addr = request.requestHeaders.getRawHeaders( + "X-Forwarded-For")[0] + + handler = self.handlers.registration_handler + yield handler.check_recaptcha( + ip_addr, + self.hs.config.recaptcha_private_key, + challenge, + user_response + ) + session[LoginType.RECAPTCHA] = True # mark captcha as done + self._save_session(session) + defer.returnValue({ + "next": [LoginType.PASSWORD, LoginType.EMAIL_IDENTITY] + }) + + @defer.inlineCallbacks + def _do_email_identity(self, request, register_json, session): + if (self.hs.config.enable_registration_captcha and + not session[LoginType.RECAPTCHA]): + raise SynapseError(400, "Captcha is required.") + + threepidCreds = register_json['threepidCreds'] + handler = self.handlers.registration_handler + yield handler.register_email(threepidCreds) + session["threepidCreds"] = threepidCreds # store creds for next stage + session[LoginType.EMAIL_IDENTITY] = True # mark email as done + self._save_session(session) + defer.returnValue({ + "next": LoginType.PASSWORD + }) + + @defer.inlineCallbacks + def _do_password(self, request, register_json, session): + if (self.hs.config.enable_registration_captcha and + not session[LoginType.RECAPTCHA]): + # captcha should've been done by this stage! + raise SynapseError(400, "Captcha is required.") + + password = register_json["password"].encode("utf-8") + desired_user_id = (register_json["user_id"].encode("utf-8") if "user_id" + 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.") handler = self.handlers.registration_handler (user_id, token) = yield handler.register( localpart=desired_user_id, - password=password, - threepidCreds=threepidCreds, - captcha_info=captcha) + password=password + ) + + if session[LoginType.EMAIL_IDENTITY]: + yield handler.bind_emails(user_id, session["threepidCreds"]) result = { "user_id": user_id, "access_token": token, "home_server": self.hs.hostname, } - defer.returnValue( - (200, result) - ) + self._remove_session(session) + defer.returnValue(result) - def on_OPTIONS(self, request): - return (200, {}) + +def _parse_json(request): + try: + content = json.loads(request.content.read()) + if type(content) != dict: + raise SynapseError(400, "Content must be a JSON object.") + return content + except ValueError: + raise SynapseError(400, "Content not JSON.") def register_servlets(hs, http_server): |