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

36
synapse/util/stringutils.py
View File

@ -85,42 +85,6 @@ def to_ascii(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):
"""Validate that a given string matches the client_secret regex defined by the spec"""
if client_secret_regex.match(client_secret) is None: