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Backout changes for automatically calculating the public baseurl. (#9313)

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This breaks some people's configurations (if their Client-Server API
is not accessed via port 443).
This commit is contained in:
Patrick Cloke 2021-02-11 11:16:54 -05:00 committed by GitHub
parent afa18f1baa
commit e40d88cff3
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16 changed files with 97 additions and 41 deletions
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1
changelog.d/9313.bugfix Normal file
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@ -0,0 +1 @@
Do not automatically calculate `public_baseurl` since it can be wrong in some situations.

20
docs/sample_config.yaml
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@ -74,10 +74,6 @@ pid_file: DATADIR/homeserver.pid
# Otherwise, it should be the URL to reach Synapse's client HTTP listener (see
# 'listeners' below).
#
# If this is left unset, it defaults to 'https://<server_name>/'. (Note that
# that will not work unless you configure Synapse or a reverse-proxy to listen
# on port 443.)
#
#public_baseurl: https://example.com/
# Set the soft limit on the number of file descriptors synapse can use
@ -1169,9 +1165,8 @@ account_validity:
# send an email to the account's email address with a renewal link. By
# default, no such emails are sent.
#
# If you enable this setting, you will also need to fill out the 'email'
# configuration section. You should also check that 'public_baseurl' is set
# correctly.
# If you enable this setting, you will also need to fill out the 'email' and
# 'public_baseurl' configuration sections.
#
#renew_at: 1w
@ -1262,7 +1257,8 @@ account_validity:
# The identity server which we suggest that clients should use when users log
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.)
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also set.)
#
#default_identity_server: https://matrix.org
@ -1287,6 +1283,8 @@ account_validity:
# by the Matrix Identity Service API specification:
# https://matrix.org/docs/spec/identity_service/latest
#
# If a delegate is specified, the config option public_baseurl must also be filled out.
#
account_threepid_delegates:
#email: https://example.com # Delegate email sending to example.com
#msisdn: http://localhost:8090 # Delegate SMS sending to this local process
@ -1938,9 +1936,9 @@ sso:
# phishing attacks from evil.site. To avoid this, include a slash after the
# hostname: "https://my.client/".
#
# The login fallback page (used by clients that don't natively support the
# required login flows) is automatically whitelisted in addition to any URLs
# in this list.
# If public_baseurl is set, then the login fallback page (used by clients
# that don't natively support the required login flows) is whitelisted in
# addition to any URLs in this list.
#
# By default, this list is empty.
#

2
synapse/api/urls.py
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@ -42,6 +42,8 @@ class ConsentURIBuilder:
"""
if hs_config.form_secret is None:
raise ConfigError("form_secret not set in config")
if hs_config.public_baseurl is None:
raise ConfigError("public_baseurl not set in config")
self._hmac_secret = hs_config.form_secret.encode("utf-8")
self._public_baseurl = hs_config.public_baseurl

16
synapse/config/cas.py
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@ -13,7 +13,7 @@
# See the License for the specific language governing permissions and
# limitations under the License.
from ._base import Config
from ._base import Config, ConfigError
class CasConfig(Config):
@ -30,13 +30,15 @@ class CasConfig(Config):
if self.cas_enabled:
self.cas_server_url = cas_config["server_url"]
public_base_url = cas_config.get("service_url") or self.public_baseurl
if public_base_url[-1] != "/":
public_base_url += "/"
# The public baseurl is required because it is used by the redirect
# template.
public_baseurl = self.public_baseurl
if not public_baseurl:
raise ConfigError("cas_config requires a public_baseurl to be set")
# TODO Update this to a _synapse URL.
self.cas_service_url = (
public_base_url + "_matrix/client/r0/login/cas/ticket"
)
self.cas_service_url = public_baseurl + "_matrix/client/r0/login/cas/ticket"
self.cas_displayname_attribute = cas_config.get("displayname_attribute")
self.cas_required_attributes = cas_config.get("required_attributes") or {}
else:

8
synapse/config/emailconfig.py
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@ -166,6 +166,11 @@ class EmailConfig(Config):
if not self.email_notif_from:
missing.append("email.notif_from")
# public_baseurl is required to build password reset and validation links that
# will be emailed to users
if config.get("public_baseurl") is None:
missing.append("public_baseurl")
if missing:
raise ConfigError(
MISSING_PASSWORD_RESET_CONFIG_ERROR % (", ".join(missing),)
@ -264,6 +269,9 @@ class EmailConfig(Config):
if not self.email_notif_from:
missing.append("email.notif_from")
if config.get("public_baseurl") is None:
missing.append("public_baseurl")
if missing:
raise ConfigError(
"email.enable_notifs is True but required keys are missing: %s"

5
synapse/config/oidc_config.py
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@ -53,7 +53,10 @@ class OIDCConfig(Config):
"Multiple OIDC providers have the idp_id %r." % idp_id
)
self.oidc_callback_url = self.public_baseurl + "_synapse/client/oidc/callback"
public_baseurl = self.public_baseurl
if public_baseurl is None:
raise ConfigError("oidc_config requires a public_baseurl to be set")
self.oidc_callback_url = public_baseurl + "_synapse/client/oidc/callback"
@property
def oidc_enabled(self) -> bool:

21
synapse/config/registration.py
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@ -49,6 +49,10 @@ class AccountValidityConfig(Config):
self.startup_job_max_delta = self.period * 10.0 / 100.0
if self.renew_by_email_enabled:
if "public_baseurl" not in synapse_config:
raise ConfigError("Can't send renewal emails without 'public_baseurl'")
template_dir = config.get("template_dir")
if not template_dir:
@ -105,6 +109,13 @@ class RegistrationConfig(Config):
account_threepid_delegates = config.get("account_threepid_delegates") or {}
self.account_threepid_delegate_email = account_threepid_delegates.get("email")
self.account_threepid_delegate_msisdn = account_threepid_delegates.get("msisdn")
if self.account_threepid_delegate_msisdn and not self.public_baseurl:
raise ConfigError(
"The configuration option `public_baseurl` is required if "
"`account_threepid_delegate.msisdn` is set, such that "
"clients know where to submit validation tokens to. Please "
"configure `public_baseurl`."
)
self.default_identity_server = config.get("default_identity_server")
self.allow_guest_access = config.get("allow_guest_access", False)
@ -227,9 +238,8 @@ class RegistrationConfig(Config):
# send an email to the account's email address with a renewal link. By
# default, no such emails are sent.
#
# If you enable this setting, you will also need to fill out the 'email'
# configuration section. You should also check that 'public_baseurl' is set
# correctly.
# If you enable this setting, you will also need to fill out the 'email' and
# 'public_baseurl' configuration sections.
#
#renew_at: 1w
@ -320,7 +330,8 @@ class RegistrationConfig(Config):
# The identity server which we suggest that clients should use when users log
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.)
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also set.)
#
#default_identity_server: https://matrix.org
@ -345,6 +356,8 @@ class RegistrationConfig(Config):
# by the Matrix Identity Service API specification:
# https://matrix.org/docs/spec/identity_service/latest
#
# If a delegate is specified, the config option public_baseurl must also be filled out.
#
account_threepid_delegates:
#email: https://example.com # Delegate email sending to example.com
#msisdn: http://localhost:8090 # Delegate SMS sending to this local process

2
synapse/config/saml2_config.py
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@ -189,6 +189,8 @@ class SAML2Config(Config):
import saml2
public_baseurl = self.public_baseurl
if public_baseurl is None:
raise ConfigError("saml2_config requires a public_baseurl to be set")
if self.saml2_grandfathered_mxid_source_attribute:
optional_attributes.add(self.saml2_grandfathered_mxid_source_attribute)

13
synapse/config/server.py
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@ -161,11 +161,7 @@ class ServerConfig(Config):
self.print_pidfile = config.get("print_pidfile")
self.user_agent_suffix = config.get("user_agent_suffix")
self.use_frozen_dicts = config.get("use_frozen_dicts", False)
self.public_baseurl = config.get("public_baseurl") or "https://%s/" % (
self.server_name,
)
if self.public_baseurl[-1] != "/":
self.public_baseurl += "/"
self.public_baseurl = config.get("public_baseurl")
# Whether to enable user presence.
self.use_presence = config.get("use_presence", True)
@ -321,6 +317,9 @@ class ServerConfig(Config):
# Always blacklist 0.0.0.0, ::
self.federation_ip_range_blacklist.update(["0.0.0.0", "::"])
if self.public_baseurl is not None:
if self.public_baseurl[-1] != "/":
self.public_baseurl += "/"
self.start_pushers = config.get("start_pushers", True)
# (undocumented) option for torturing the worker-mode replication a bit,
@ -748,10 +747,6 @@ class ServerConfig(Config):
# Otherwise, it should be the URL to reach Synapse's client HTTP listener (see
# 'listeners' below).
#
# If this is left unset, it defaults to 'https://<server_name>/'. (Note that
# that will not work unless you configure Synapse or a reverse-proxy to listen
# on port 443.)
#
#public_baseurl: https://example.com/
# Set the soft limit on the number of file descriptors synapse can use

9
synapse/config/sso.py
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@ -64,6 +64,9 @@ class SSOConfig(Config):
# gracefully to the client). This would make it pointless to ask the user for
# confirmation, since the URL the confirmation page would be showing wouldn't be
# the client's.
# public_baseurl is an optional setting, so we only add the fallback's URL to the
# list if it's provided (because we can't figure out what that URL is otherwise).
if self.public_baseurl:
login_fallback_url = self.public_baseurl + "_matrix/static/client/login"
self.sso_client_whitelist.append(login_fallback_url)
@ -83,9 +86,9 @@ class SSOConfig(Config):
# phishing attacks from evil.site. To avoid this, include a slash after the
# hostname: "https://my.client/".
#
# The login fallback page (used by clients that don't natively support the
# required login flows) is automatically whitelisted in addition to any URLs
# in this list.
# If public_baseurl is set, then the login fallback page (used by clients
# that don't natively support the required login flows) is whitelisted in
# addition to any URLs in this list.
#
# By default, this list is empty.
#

4
synapse/handlers/identity.py
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@ -504,6 +504,10 @@ class IdentityHandler(BaseHandler):
except RequestTimedOutError:
raise SynapseError(500, "Timed out contacting identity server")
# It is already checked that public_baseurl is configured since this code
# should only be used if account_threepid_delegate_msisdn is true.
assert self.hs.config.public_baseurl
# we need to tell the client to send the token back to us, since it doesn't
# otherwise know where to send it, so add submit_url response parameter
# (see also MSC2078)

4
synapse/rest/well_known.py
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@ -34,6 +34,10 @@ class WellKnownBuilder:
self._config = hs.config
def get_well_known(self):
# if we don't have a public_baseurl, we can't help much here.
if self._config.public_baseurl is None:
return None
result = {"m.homeserver": {"base_url": self._config.public_baseurl}}
if self._config.default_identity_server:

15
synapse/util/templates.py
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@ -17,7 +17,7 @@
import time
import urllib.parse
from typing import TYPE_CHECKING, Callable, Iterable, Union
from typing import TYPE_CHECKING, Callable, Iterable, Optional, Union
import jinja2
@ -74,14 +74,23 @@ def build_jinja_env(
return env
def _create_mxc_to_http_filter(public_baseurl: str) -> Callable:
def _create_mxc_to_http_filter(
public_baseurl: Optional[str],
) -> Callable[[str, int, int, str], str]:
"""Create and return a jinja2 filter that converts MXC urls to HTTP
Args:
public_baseurl: The public, accessible base URL of the homeserver
"""
def mxc_to_http_filter(value, width, height, resize_method="crop"):
def mxc_to_http_filter(
value: str, width: int, height: int, resize_method: str = "crop"
) -> str:
if not public_baseurl:
raise RuntimeError(
"public_baseurl must be set in the homeserver config to convert MXC URLs to HTTP URLs."
)
if value[0:6] != "mxc://":
return ""

4
tests/rest/client/v1/test_login.py
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@ -672,10 +672,12 @@ class CASTestCase(unittest.HomeserverTestCase):
self.redirect_path = "_synapse/client/login/sso/redirect/confirm"
config = self.default_config()
config["public_baseurl"] = (
config.get("public_baseurl") or "https://matrix.goodserver.com:8448"
)
config["cas_config"] = {
"enabled": True,
"server_url": CAS_SERVER,
"service_url": "https://matrix.goodserver.com:8448",
}
cas_user_id = "username"

9
tests/rest/test_well_known.py
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@ -40,3 +40,12 @@ class WellKnownTests(unittest.HomeserverTestCase):
"m.identity_server": {"base_url": "https://testis"},
},
)
def test_well_known_no_public_baseurl(self):
self.hs.config.public_baseurl = None
channel = self.make_request(
"GET", "/.well-known/matrix/client", shorthand=False
)
self.assertEqual(channel.code, 404)

1
tests/utils.py
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@ -159,6 +159,7 @@ def default_config(name, parse=False):
},
"rc_3pid_validation": {"per_second": 10000, "burst_count": 10000},
"saml2_enabled": False,
"public_baseurl": None,
"default_identity_server": None,
"key_refresh_interval": 24 * 60 * 60 * 1000,
"old_signing_keys": {},