diff --git a/synapse/api/auth.py b/synapse/api/auth.py index 007a0998a7..31e1abb964 100644 --- a/synapse/api/auth.py +++ b/synapse/api/auth.py @@ -13,7 +13,6 @@ # See the License for the specific language governing permissions and # limitations under the License. -"""This module contains classes for authenticating the user.""" from canonicaljson import encode_canonical_json from signedjson.key import decode_verify_key_bytes from signedjson.sign import verify_signed_json, SignatureVerifyException @@ -42,13 +41,20 @@ AuthEventTypes = ( class Auth(object): - + """ + FIXME: This class contains a mix of functions for authenticating users + of our client-server API and authenticating events added to room graphs. + """ def __init__(self, hs): self.hs = hs self.clock = hs.get_clock() self.store = hs.get_datastore() self.state = hs.get_state_handler() self.TOKEN_NOT_FOUND_HTTP_STATUS = 401 + # Docs for these currently lives at + # https://github.com/matrix-org/matrix-doc/blob/master/drafts/macaroons_caveats.rst + # In addition, we have type == delete_pusher which grants access only to + # delete pushers. self._KNOWN_CAVEAT_PREFIXES = set([ "gen = ", "guest = ", @@ -525,7 +531,7 @@ class Auth(object): return default @defer.inlineCallbacks - def get_user_by_req(self, request, allow_guest=False): + def get_user_by_req(self, request, allow_guest=False, rights="access"): """ Get a registered user's ID. Args: @@ -547,7 +553,7 @@ class Auth(object): ) access_token = request.args["access_token"][0] - user_info = yield self.get_user_by_access_token(access_token) + user_info = yield self.get_user_by_access_token(access_token, rights) user = user_info["user"] token_id = user_info["token_id"] is_guest = user_info["is_guest"] @@ -608,7 +614,7 @@ class Auth(object): defer.returnValue(user_id) @defer.inlineCallbacks - def get_user_by_access_token(self, token): + def get_user_by_access_token(self, token, rights="access"): """ Get a registered user's ID. Args: @@ -619,7 +625,7 @@ class Auth(object): AuthError if no user by that token exists or the token is invalid. """ try: - ret = yield self.get_user_from_macaroon(token) + ret = yield self.get_user_from_macaroon(token, rights) except AuthError: # TODO(daniel): Remove this fallback when all existing access tokens # have been re-issued as macaroons. @@ -627,11 +633,11 @@ class Auth(object): defer.returnValue(ret) @defer.inlineCallbacks - def get_user_from_macaroon(self, macaroon_str): + def get_user_from_macaroon(self, macaroon_str, rights="access"): try: macaroon = pymacaroons.Macaroon.deserialize(macaroon_str) - self.validate_macaroon(macaroon, "access", self.hs.config.expire_access_token) + self.validate_macaroon(macaroon, rights, self.hs.config.expire_access_token) user_prefix = "user_id = " user = None @@ -654,6 +660,13 @@ class Auth(object): "is_guest": True, "token_id": None, } + elif rights == "delete_pusher": + # We don't store these tokens in the database + ret = { + "user": user, + "is_guest": False, + "token_id": None, + } else: # This codepath exists so that we can actually return a # token ID, because we use token IDs in place of device @@ -685,7 +698,8 @@ class Auth(object): Args: macaroon(pymacaroons.Macaroon): The macaroon to validate - type_string(str): The kind of token this is (e.g. "access", "refresh") + type_string(str): The kind of token required (e.g. "access", "refresh", + "delete_pusher") verify_expiry(bool): Whether to verify whether the macaroon has expired. This should really always be True, but no clients currently implement token refresh, so we can't enforce expiry yet. diff --git a/synapse/app/pusher.py b/synapse/app/pusher.py index 135dd58c15..f1de1e7ce9 100644 --- a/synapse/app/pusher.py +++ b/synapse/app/pusher.py @@ -21,6 +21,7 @@ from synapse.config._base import ConfigError from synapse.config.database import DatabaseConfig from synapse.config.logger import LoggingConfig from synapse.config.emailconfig import EmailConfig +from synapse.config.key import KeyConfig from synapse.http.site import SynapseSite from synapse.metrics.resource import MetricsResource, METRICS_PREFIX from synapse.storage.roommember import RoomMemberStore @@ -63,6 +64,26 @@ class SlaveConfig(DatabaseConfig): self.pid_file = self.abspath(config.get("pid_file")) self.public_baseurl = config["public_baseurl"] + # some things used by the auth handler but not actually used in the + # pusher codebase + self.bcrypt_rounds = None + self.ldap_enabled = None + self.ldap_server = None + self.ldap_port = None + self.ldap_tls = None + self.ldap_search_base = None + self.ldap_search_property = None + self.ldap_email_property = None + self.ldap_full_name_property = None + + # We would otherwise try to use the registration shared secret as the + # macaroon shared secret if there was no macaroon_shared_secret, but + # that means pulling in RegistrationConfig too. We don't need to be + # backwards compaitible in the pusher codebase so just make people set + # macaroon_shared_secret. We set this to None to prevent it referencing + # an undefined key. + self.registration_shared_secret = None + def default_config(self, server_name, **kwargs): pid_file = self.abspath("pusher.pid") return """\ @@ -95,7 +116,7 @@ class SlaveConfig(DatabaseConfig): """ % locals() -class PusherSlaveConfig(SlaveConfig, LoggingConfig, EmailConfig): +class PusherSlaveConfig(SlaveConfig, LoggingConfig, EmailConfig, KeyConfig): pass diff --git a/synapse/handlers/auth.py b/synapse/handlers/auth.py index 26c865e171..200793b5ed 100644 --- a/synapse/handlers/auth.py +++ b/synapse/handlers/auth.py @@ -529,6 +529,11 @@ class AuthHandler(BaseHandler): macaroon.add_first_party_caveat("time < %d" % (expiry,)) return macaroon.serialize() + def generate_delete_pusher_token(self, user_id): + macaroon = self._generate_base_macaroon(user_id) + macaroon.add_first_party_caveat("type = delete_pusher") + return macaroon.serialize() + def validate_short_term_login_token_and_get_user_id(self, login_token): try: macaroon = pymacaroons.Macaroon.deserialize(login_token) diff --git a/synapse/push/emailpusher.py b/synapse/push/emailpusher.py index 2c21ed3088..12a3ec7fd8 100644 --- a/synapse/push/emailpusher.py +++ b/synapse/push/emailpusher.py @@ -279,5 +279,5 @@ class EmailPusher(object): logger.info("Sending notif email for user %r", self.user_id) yield self.mailer.send_notification_mail( - self.user_id, self.email, push_actions, reason + self.app_id, self.user_id, self.email, push_actions, reason ) diff --git a/synapse/push/mailer.py b/synapse/push/mailer.py index de31c7dbbe..c3431cdbf2 100644 --- a/synapse/push/mailer.py +++ b/synapse/push/mailer.py @@ -81,6 +81,7 @@ class Mailer(object): def __init__(self, hs, app_name): self.hs = hs self.store = self.hs.get_datastore() + self.auth_handler = self.hs.get_auth_handler() self.state_handler = self.hs.get_state_handler() loader = jinja2.FileSystemLoader(self.hs.config.email_template_dir) self.app_name = app_name @@ -96,7 +97,8 @@ class Mailer(object): ) @defer.inlineCallbacks - def send_notification_mail(self, user_id, email_address, push_actions, reason): + def send_notification_mail(self, app_id, user_id, email_address, + push_actions, reason): raw_from = email.utils.parseaddr(self.hs.config.email_notif_from)[1] raw_to = email.utils.parseaddr(email_address)[1] @@ -160,7 +162,9 @@ class Mailer(object): template_vars = { "user_display_name": user_display_name, - "unsubscribe_link": self.make_unsubscribe_link(), + "unsubscribe_link": self.make_unsubscribe_link( + user_id, app_id, email_address + ), "summary_text": summary_text, "app_name": self.app_name, "rooms": rooms, @@ -426,9 +430,18 @@ class Mailer(object): notif['room_id'], notif['event_id'] ) - def make_unsubscribe_link(self): - # XXX: matrix.to - return "https://vector.im/#/settings" + def make_unsubscribe_link(self, user_id, app_id, email_address): + params = { + "access_token": self.auth_handler.generate_delete_pusher_token(user_id), + "app_id": app_id, + "pushkey": email_address, + } + + # XXX: make r0 once API is stable + return "%s_matrix/client/unstable/pushers/remove?%s" % ( + self.hs.config.public_baseurl, + urllib.urlencode(params), + ) def mxc_to_http_filter(self, value, width, height, resize_method="crop"): if value[0:6] != "mxc://": diff --git a/synapse/rest/client/v1/pusher.py b/synapse/rest/client/v1/pusher.py index ab928a16da..9a2ed6ed88 100644 --- a/synapse/rest/client/v1/pusher.py +++ b/synapse/rest/client/v1/pusher.py @@ -17,7 +17,11 @@ from twisted.internet import defer from synapse.api.errors import SynapseError, Codes from synapse.push import PusherConfigException -from synapse.http.servlet import parse_json_object_from_request +from synapse.http.servlet import ( + parse_json_object_from_request, parse_string, RestServlet +) +from synapse.http.server import finish_request +from synapse.api.errors import StoreError from .base import ClientV1RestServlet, client_path_patterns @@ -136,6 +140,57 @@ class PushersSetRestServlet(ClientV1RestServlet): return 200, {} +class PushersRemoveRestServlet(RestServlet): + """ + To allow pusher to be delete by clicking a link (ie. GET request) + """ + PATTERNS = client_path_patterns("/pushers/remove$") + SUCCESS_HTML = "You have been unsubscribed" + + def __init__(self, hs): + super(RestServlet, self).__init__() + self.hs = hs + self.notifier = hs.get_notifier() + self.auth = hs.get_v1auth() + + @defer.inlineCallbacks + def on_GET(self, request): + requester = yield self.auth.get_user_by_req(request, rights="delete_pusher") + user = requester.user + + app_id = parse_string(request, "app_id", required=True) + pushkey = parse_string(request, "pushkey", required=True) + + pusher_pool = self.hs.get_pusherpool() + + try: + yield pusher_pool.remove_pusher( + app_id=app_id, + pushkey=pushkey, + user_id=user.to_string(), + ) + except StoreError as se: + if se.code != 404: + # This is fine: they're already unsubscribed + raise + + self.notifier.on_new_replication_data() + + request.setResponseCode(200) + request.setHeader(b"Content-Type", b"text/html; charset=utf-8") + request.setHeader(b"Server", self.hs.version_string) + request.setHeader(b"Content-Length", b"%d" % ( + len(PushersRemoveRestServlet.SUCCESS_HTML), + )) + request.write(PushersRemoveRestServlet.SUCCESS_HTML) + finish_request(request) + defer.returnValue(None) + + def on_OPTIONS(self, _): + return 200, {} + + def register_servlets(hs, http_server): PushersRestServlet(hs).register(http_server) PushersSetRestServlet(hs).register(http_server) + PushersRemoveRestServlet(hs).register(http_server)