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Default value for `public_baseurl` (#11210) 

We might as well use a default value for `public_baseurl` based on
`server_name` - in many cases, it will be correct.
This commit is contained in:
Richard van der Hoff 2021-11-08 14:13:10 +00:00 committed by GitHub
parent 556a488209
commit 86a497efaa
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16 changed files with 62 additions and 73 deletions
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1
changelog.d/11210.feature Normal file
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@ -0,0 +1 @@
Calculate a default value for `public_baseurl` based on `server_name`.

13
docs/sample_config.yaml
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@ -91,6 +91,8 @@ pid_file: DATADIR/homeserver.pid
# Otherwise, it should be the URL to reach Synapse's client HTTP listener (see
# 'listeners' below).
#
# Defaults to 'https://<server_name>/'.
#
#public_baseurl: https://example.com/
# Uncomment the following to tell other servers to send federation traffic on
@ -1265,7 +1267,7 @@ oembed:
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also set.)
# This setting is ignored unless public_baseurl is also explicitly set.)
#
#default_identity_server: https://matrix.org
@ -1290,8 +1292,6 @@ oembed:
# 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
@ -1981,11 +1981,10 @@ sso:
# phishing attacks from evil.site. To avoid this, include a slash after the
# hostname: "https://my.client/".
#
# 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.
# 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.
# By default, this list contains only the login fallback page.
#
#client_whitelist:
# - https://riot.im/develop

3
synapse/api/urls.py
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@ -38,9 +38,6 @@ class ConsentURIBuilder:
def __init__(self, hs_config: HomeServerConfig):
if hs_config.key.form_secret is None:
raise ConfigError("form_secret not set in config")
if hs_config.server.public_baseurl is None:
raise ConfigError("public_baseurl not set in config")
self._hmac_secret = hs_config.key.form_secret.encode("utf-8")
self._public_baseurl = hs_config.server.public_baseurl

4
synapse/config/account_validity.py
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@ -75,10 +75,6 @@ class AccountValidityConfig(Config):
self.account_validity_period * 10.0 / 100.0
)
if self.account_validity_renew_by_email_enabled:
if not self.root.server.public_baseurl:
raise ConfigError("Can't send renewal emails without 'public_baseurl'")
# Load account validity templates.
account_validity_template_dir = account_validity_config.get("template_dir")
if account_validity_template_dir is not None:

10
synapse/config/cas.py
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@ -16,7 +16,7 @@ from typing import Any, List
from synapse.config.sso import SsoAttributeRequirement
from ._base import Config, ConfigError
from ._base import Config
from ._util import validate_config
@ -35,14 +35,10 @@ class CasConfig(Config):
if self.cas_enabled:
self.cas_server_url = cas_config["server_url"]
# The public baseurl is required because it is used by the redirect
# template.
public_baseurl = self.root.server.public_baseurl
if not public_baseurl:
raise ConfigError("cas_config requires a public_baseurl to be set")
# TODO Update this to a _synapse URL.
public_baseurl = self.root.server.public_baseurl
self.cas_service_url = public_baseurl + "_matrix/client/r0/login/cas/ticket"
self.cas_displayname_attribute = cas_config.get("displayname_attribute")
required_attributes = cas_config.get("required_attributes") or {}
self.cas_required_attributes = _parsed_required_attributes_def(

8
synapse/config/emailconfig.py
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@ -186,11 +186,6 @@ 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),)
@ -296,9 +291,6 @@ 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"

2
synapse/config/oidc.py
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@ -59,8 +59,6 @@ class OIDCConfig(Config):
)
public_baseurl = self.root.server.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

15
synapse/config/registration.py
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@ -45,17 +45,6 @@ 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.root.server.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)
@ -240,7 +229,7 @@ class RegistrationConfig(Config):
# in on this server.
#
# (By default, no suggestion is made, so it is left up to the client.
# This setting is ignored unless public_baseurl is also set.)
# This setting is ignored unless public_baseurl is also explicitly set.)
#
#default_identity_server: https://matrix.org
@ -265,8 +254,6 @@ 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

5
synapse/config/saml2.py
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@ -199,14 +199,11 @@ class SAML2Config(Config):
"""
import saml2
public_baseurl = self.root.server.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)
optional_attributes -= required_attributes
public_baseurl = self.root.server.public_baseurl
metadata_url = public_baseurl + "_synapse/client/saml2/metadata.xml"
response_url = public_baseurl + "_synapse/client/saml2/authn_response"
return {

45
synapse/config/server.py
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@ -16,6 +16,7 @@ import itertools
import logging
import os.path
import re
import urllib.parse
from textwrap import indent
from typing import Any, Dict, Iterable, List, Optional, Set, Tuple, Union
@ -264,10 +265,44 @@ class ServerConfig(Config):
self.use_frozen_dicts = config.get("use_frozen_dicts", False)
self.serve_server_wellknown = config.get("serve_server_wellknown", False)
self.public_baseurl = config.get("public_baseurl")
if self.public_baseurl is not None:
if self.public_baseurl[-1] != "/":
self.public_baseurl += "/"
# Whether we should serve a "client well-known":
# (a) at .well-known/matrix/client on our client HTTP listener
# (b) in the response to /login
#
# ... which together help ensure that clients use our public_baseurl instead of
# whatever they were told by the user.
#
# For the sake of backwards compatibility with existing installations, this is
# True if public_baseurl is specified explicitly, and otherwise False. (The
# reasoning here is that we have no way of knowing that the default
# public_baseurl is actually correct for existing installations - many things
# will not work correctly, but that's (probably?) better than sending clients
# to a completely broken URL.
self.serve_client_wellknown = False
public_baseurl = config.get("public_baseurl")
if public_baseurl is None:
public_baseurl = f"https://{self.server_name}/"
logger.info("Using default public_baseurl %s", public_baseurl)
else:
self.serve_client_wellknown = True
if public_baseurl[-1] != "/":
public_baseurl += "/"
self.public_baseurl = public_baseurl
# check that public_baseurl is valid
try:
splits = urllib.parse.urlsplit(self.public_baseurl)
except Exception as e:
raise ConfigError(f"Unable to parse URL: {e}", ("public_baseurl",))
if splits.scheme not in ("https", "http"):
raise ConfigError(
f"Invalid scheme '{splits.scheme}': only https and http are supported"
)
if splits.query or splits.fragment:
raise ConfigError(
"public_baseurl cannot contain query parameters or a #-fragment"
)
# Whether to enable user presence.
presence_config = config.get("presence") or {}
@ -773,6 +808,8 @@ class ServerConfig(Config):
# Otherwise, it should be the URL to reach Synapse's client HTTP listener (see
# 'listeners' below).
#
# Defaults to 'https://<server_name>/'.
#
#public_baseurl: https://example.com/
# Uncomment the following to tell other servers to send federation traffic on

18
synapse/config/sso.py
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@ -101,13 +101,10 @@ 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.root.server.public_baseurl:
login_fallback_url = (
self.root.server.public_baseurl + "_matrix/static/client/login"
)
self.sso_client_whitelist.append(login_fallback_url)
login_fallback_url = (
self.root.server.public_baseurl + "_matrix/static/client/login"
)
self.sso_client_whitelist.append(login_fallback_url)
def generate_config_section(self, **kwargs):
return """\
@ -128,11 +125,10 @@ class SSOConfig(Config):
# phishing attacks from evil.site. To avoid this, include a slash after the
# hostname: "https://my.client/".
#
# 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.
# 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.
# By default, this list contains only the login fallback page.
#
#client_whitelist:
# - https://riot.im/develop

4
synapse/handlers/identity.py
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@ -537,10 +537,6 @@ class IdentityHandler:
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.server.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)

3
synapse/rest/well_known.py
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@ -34,8 +34,7 @@ class WellKnownBuilder:
self._config = hs.config
def get_well_known(self) -> Optional[JsonDict]:
# if we don't have a public_baseurl, we can't help much here.
if self._config.server.public_baseurl is None:
if not self._config.server.serve_client_wellknown:
return None
result = {"m.homeserver": {"base_url": self._config.server.public_baseurl}}

2
tests/push/test_email.py
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@ -65,7 +65,7 @@ class EmailPusherTests(HomeserverTestCase):
"notif_from": "test@example.com",
"riot_base_url": None,
}
config["public_baseurl"] = "aaa"
config["public_baseurl"] = "http://aaa"
config["start_pushers"] = True
hs = self.setup_test_homeserver(config=config)

1
tests/rest/client/test_consent.py
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@ -35,7 +35,6 @@ class ConsentResourceTestCase(unittest.HomeserverTestCase):
def make_homeserver(self, reactor, clock):
config = self.default_config()
config["public_baseurl"] = "aaaa"
config["form_secret"] = "123abc"
# Make some temporary templates...

1
tests/rest/client/test_register.py
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@ -891,7 +891,6 @@ class AccountValidityRenewalByEmailTestCase(unittest.HomeserverTestCase):
"smtp_pass": None,
"notif_from": "test@example.com",
}
config["public_baseurl"] = "aaa"
self.hs = self.setup_test_homeserver(config=config)