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reactivate IMAP AUTH=LOGIN as fallback replaced by 25402ab641 supporting https://github.com/Kozea/Radicale/issues/1929

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This commit is contained in:
Peter Bieringer
2025-12-03 08:24:25 +01:00
parent 3521f2731a
commit f3f73ece15
1 changed files with 12 additions and 4 deletions
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16
radicale/auth/imap.py
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@@ -64,10 +64,18 @@ class Auth(auth.BaseAuth):
if self._security == "starttls":
connection.starttls(ssl.create_default_context())
try:
connection.authenticate(
"PLAIN",
lambda _: "{0}\x00{0}\x00{1}".format(login, password).encode(),
)
if "AUTH=PLAIN" in connection.capabilities:
logger.debug("IMAP authentication PLAIN selected for user %r via %s:%d (security: %s)", login, self._host, self._port, self._security)
connection.authenticate(
"PLAIN",
lambda _: "{0}\x00{0}\x00{1}".format(login, password).encode(),
)
elif "AUTH=LOGIN" in connection.capabilities:
logger.debug("IMAP authentication LOGIN selected for user %r via %s:%d (security: %s)", login, self._host, self._port, self._security)
connection.login(login, password)
else:
logger.error("IMAP server is neither supporting AUTH=PLAIN or AUTH=LOGIN: %s:%d (security: %s)", self._host, self._port, self._security)
return ""
except imaplib.IMAP4.error as e:
logger.warning("IMAP authentication failed for user %r: %s", login, e, exc_info=False)
return ""