diff options
Diffstat (limited to 'synapse/handlers')
| -rw-r--r-- | synapse/handlers/register.py | 68 |
1 files changed, 62 insertions, 6 deletions
diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index bee052274f..0b841d6d3a 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -17,7 +17,9 @@ from twisted.internet import defer from synapse.types import UserID -from synapse.api.errors import SynapseError, RegistrationError +from synapse.api.errors import ( + SynapseError, RegistrationError, InvalidCaptchaError +) from ._base import BaseHandler import synapse.util.stringutils as stringutils from synapse.http.client import PlainHttpClient @@ -38,7 +40,8 @@ class RegistrationHandler(BaseHandler): self.distributor.declare("registered_user") @defer.inlineCallbacks - def register(self, localpart=None, password=None, threepidCreds=None): + def register(self, localpart=None, password=None, threepidCreds=None, + captcha_info={}): """Registers a new client on the server. Args: @@ -51,10 +54,26 @@ 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']) + logger.info("validating theeepidcred sid %s on id server %s", + c['sid'], c['idServer']) try: threepid = yield self._threepid_from_creds(c) except: @@ -63,7 +82,8 @@ class RegistrationHandler(BaseHandler): if not threepid: raise RegistrationError(400, "Couldn't validate 3pid") - logger.info("got threepid medium %s address %s", threepid['medium'], threepid['address']) + logger.info("got threepid medium %s address %s", + threepid['medium'], threepid['address']) password_hash = None if password: @@ -131,7 +151,8 @@ class RegistrationHandler(BaseHandler): # XXX: make this configurable! trustedIdServers = [ 'matrix.org:8090' ] if not creds['idServer'] in trustedIdServers: - logger.warn('%s is not a trusted ID server: rejecting 3pid credentials', creds['idServer']) + logger.warn('%s is not a trusted ID server: rejecting 3pid '+ + 'credentials', creds['idServer']) defer.returnValue(None) data = yield httpCli.get_json( creds['idServer'], @@ -149,9 +170,44 @@ 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) + # 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=%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, + 'remoteip': ip_addr, + 'challenge': challenge, + 'response': response + } + ) + defer.returnValue(data) |