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Remove exception_to_unicode

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this is a no-op on python 3.
This commit is contained in:
Richard van der Hoff 2020-05-15 19:07:24 +01:00
parent 572b444dab
commit 08fa96f030
2 changed files with 3 additions and 48 deletions
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15
synapse/storage/database.py
View File

@ -50,7 +50,6 @@ from synapse.storage.background_updates import BackgroundUpdater
from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine, Sqlite3Engine from synapse.storage.engines import BaseDatabaseEngine, PostgresEngine, Sqlite3Engine
from synapse.storage.types import Connection, Cursor from synapse.storage.types import Connection, Cursor
from synapse.types import Collection from synapse.types import Collection
from synapse.util.stringutils import exception_to_unicode
logger = logging.getLogger(__name__) logger = logging.getLogger(__name__)
@ -424,20 +423,14 @@ class Database(object):
# This can happen if the database disappears mid # This can happen if the database disappears mid
# transaction. # transaction.
logger.warning( logger.warning(
"[TXN OPERROR] {%s} %s %d/%d", "[TXN OPERROR] {%s} %s %d/%d", name, e, i, N,
name,
exception_to_unicode(e),
i,
N,
) )
if i < N: if i < N:
i += 1 i += 1
try: try:
conn.rollback() conn.rollback()
except self.engine.module.Error as e1: except self.engine.module.Error as e1:
logger.warning( logger.warning("[TXN EROLL] {%s} %s", name, e1)
"[TXN EROLL] {%s} %s", name, exception_to_unicode(e1)
)
continue continue
raise raise
except self.engine.module.DatabaseError as e: except self.engine.module.DatabaseError as e:
@ -449,9 +442,7 @@ class Database(object):
conn.rollback() conn.rollback()
except self.engine.module.Error as e1: except self.engine.module.Error as e1:
logger.warning( logger.warning(
"[TXN EROLL] {%s} %s", "[TXN EROLL] {%s} %s", name, e1,
name,
exception_to_unicode(e1),
) )
continue continue
raise raise

36
synapse/util/stringutils.py
View File

@ -85,42 +85,6 @@ def to_ascii(s):
return s return s
def exception_to_unicode(e):
"""Helper function to extract the text of an exception as a unicode string
Args:
e (Exception): exception to be stringified
Returns:
unicode
"""
# urgh, this is a mess. The basic problem here is that psycopg2 constructs its
# exceptions with PyErr_SetString, with a (possibly non-ascii) argument. str() will
# then produce the raw byte sequence. Under Python 2, this will then cause another
# error if it gets mixed with a `unicode` object, as per
# https://github.com/matrix-org/synapse/issues/4252
# First of all, if we're under python3, everything is fine because it will sort this
# nonsense out for us.
if not PY2:
return str(e)
# otherwise let's have a stab at decoding the exception message. We'll circumvent
# Exception.__str__(), which would explode if someone raised Exception(u'non-ascii')
# and instead look at what is in the args member.
if len(e.args) == 0:
return ""
elif len(e.args) > 1:
return six.text_type(repr(e.args))
msg = e.args[0]
if isinstance(msg, bytes):
return msg.decode("utf-8", errors="replace")
else:
return msg
def assert_valid_client_secret(client_secret): def assert_valid_client_secret(client_secret):
"""Validate that a given string matches the client_secret regex defined by the spec""" """Validate that a given string matches the client_secret regex defined by the spec"""
if client_secret_regex.match(client_secret) is None: if client_secret_regex.match(client_secret) is None: