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Synapse 1.13.0rc2 (2020-05-14)

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==============================
 
 Bugfixes
 --------
 
 - Fix a long-standing bug which could cause messages not to be sent over federation, when state events with state keys matching user IDs (such as custom user statuses) were received. ([\#7376](https://github.com/matrix-org/synapse/issues/7376))
 - Restore compatibility with non-compliant clients during the user interactive authentication process, fixing a problem introduced in v1.13.0rc1. ([\#7483](https://github.com/matrix-org/synapse/issues/7483))
 
 Internal Changes
 ----------------
 
 - Fix linting errors in new version of Flake8. ([\#7470](https://github.com/matrix-org/synapse/issues/7470))
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Merge tag 'v1.13.0rc2' into develop

Synapse 1.13.0rc2 (2020-05-14)
==============================

Bugfixes
--------

- Fix a long-standing bug which could cause messages not to be sent over federation, when state events with state keys matching user IDs (such as custom user statuses) were received. ([\#7376](https://github.com/matrix-org/synapse/issues/7376))
- Restore compatibility with non-compliant clients during the user interactive authentication process, fixing a problem introduced in v1.13.0rc1. ([\#7483](https://github.com/matrix-org/synapse/issues/7483))

Internal Changes
----------------

- Fix linting errors in new version of Flake8. ([\#7470](https://github.com/matrix-org/synapse/issues/7470))
This commit is contained in:
Richard van der Hoff 2020-05-14 11:46:38 +01:00
commit dede23ff1e
7 changed files with 95 additions and 68 deletions
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37
synapse/handlers/auth.py
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@ -252,7 +252,6 @@ class AuthHandler(BaseHandler):
clientdict: Dict[str, Any],
clientip: str,
description: str,
validate_clientdict: bool = True,
) -> Tuple[dict, dict, str]:
"""
Takes a dictionary sent by the client in the login / registration
@ -278,10 +277,6 @@ class AuthHandler(BaseHandler):
description: A human readable string to be displayed to the user that
describes the operation happening on their account.
validate_clientdict: Whether to validate that the operation happening
on the account has not changed. If this is false,
the client dict is persisted instead of validated.
Returns:
A tuple of (creds, params, session_id).
@ -346,26 +341,30 @@ class AuthHandler(BaseHandler):
# Ensure that the queried operation does not vary between stages of
# the UI authentication session. This is done by generating a stable
# comparator based on the URI, method, and client dict (minus the
# auth dict) and storing it during the initial query. Subsequent
# comparator and storing it during the initial query. Subsequent
# queries ensure that this comparator has not changed.
if validate_clientdict:
session_comparator = (session.uri, session.method, session.clientdict)
comparator = (uri, method, clientdict)
else:
session_comparator = (session.uri, session.method) # type: ignore
comparator = (uri, method) # type: ignore
if session_comparator != comparator:
#
# The comparator is based on the requested URI and HTTP method. The
# client dict (minus the auth dict) should also be checked, but some
# clients are not spec compliant, just warn for now if the client
# dict changes.
if (session.uri, session.method) != (uri, method):
raise SynapseError(
403,
"Requested operation has changed during the UI authentication session.",
)
# For backwards compatibility the registration endpoint persists
# changes to the client dict instead of validating them.
if not validate_clientdict:
await self.store.set_ui_auth_clientdict(sid, clientdict)
if session.clientdict != clientdict:
logger.warning(
"Requested operation has changed during the UI "
"authentication session. A future version of Synapse "
"will remove this capability."
)
# For backwards compatibility, changes to the client dict are
# persisted as clients modify them throughout their user interactive
# authentication flow.
await self.store.set_ui_auth_clientdict(sid, clientdict)
if not authdict:
raise InteractiveAuthIncompleteError(