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core/webauthn: Use different return code when user verification is requested but PIN is not set to get better browser behavior. Related to cf6949332f.

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This commit is contained in:
Andrew Kozlik 2019-12-02 20:18:46 +01:00
parent a63ff8f9b4
commit 4d3c634732
1 changed files with 8 additions and 2 deletions
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10
core/src/apps/webauthn/fido2.py
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@ -1414,7 +1414,9 @@ def cbor_make_credential(req: Cmd, dialog_mgr: DialogManager) -> Optional[Cmd]:
# User verification requested, but PIN is not enabled.
state_set = dialog_mgr.set_state(Fido2ConfirmNoPin(req.cid, dialog_mgr.iface))
if state_set:
return cbor_error(req.cid, _ERR_UNSUPPORTED_OPTION)
# We should return _ERR_UNSUPPORTED_OPTION, but since we claim in GetInfo that the PIN
# is set even when it's not, it makes more sense to return _ERR_OPERATION_DENIED.
return cbor_error(req.cid, _ERR_OPERATION_DENIED)
else:
return cmd_error(req.cid, _ERR_CHANNEL_BUSY)
@ -1571,7 +1573,9 @@ def cbor_get_assertion(req: Cmd, dialog_mgr: DialogManager) -> Optional[Cmd]:
# User verification requested, but PIN is not enabled.
state_set = dialog_mgr.set_state(Fido2ConfirmNoPin(req.cid, dialog_mgr.iface))
if state_set:
return cbor_error(req.cid, _ERR_UNSUPPORTED_OPTION)
# We should return _ERR_UNSUPPORTED_OPTION, but since we claim in GetInfo that the PIN
# is set even when it's not, it makes more sense to return _ERR_OPERATION_DENIED.
return cbor_error(req.cid, _ERR_OPERATION_DENIED)
else:
return cmd_error(req.cid, _ERR_CHANNEL_BUSY)
@ -1729,6 +1733,8 @@ def cbor_get_assertion_sign(
def cbor_get_info(req: Cmd) -> Cmd:
# Note: We claim that the PIN is set even when it's not, because otherwise
# login.live.com shows an error, but doesn't instruct the user to set a PIN.
response_data = {
_GETINFO_RESP_VERSIONS: ["U2F_V2", "FIDO_2_0"],
_GETINFO_RESP_EXTENSIONS: ["hmac-secret"],