def _apply_proposal(self, auth_keys, pubkey, setting_proposal_data,
context):
setting_proposal = SettingProposal()
setting_proposal.ParseFromString(setting_proposal_data)
proposal_id = hashlib.sha256(setting_proposal_data).hexdigest()
approval_threshold = _get_approval_threshold(context)
_validate_setting(auth_keys, setting_proposal.setting,
setting_proposal.value)
if approval_threshold > 1:
setting_candidates = _get_setting_candidates(context)
existing_candidate = _first(
setting_candidates.candidates,
lambda candidate: candidate.proposal_id == proposal_id)
if existing_candidate is not None:
raise InvalidTransaction('Duplicate proposal for {}'.format(
setting_proposal.setting))
record = SettingCandidate.VoteRecord(public_key=pubkey,
vote=SettingVote.ACCEPT)
setting_candidates.candidates.add(proposal_id=proposal_id,
proposal=setting_proposal,
votes=[record])
LOGGER.debug('Proposal made to set %s to %s',
setting_proposal.setting, setting_proposal.value)
_save_setting_candidates(context, setting_candidates)
else:
_set_setting_value(context, setting_proposal.setting,
setting_proposal.value)
def test_vote_rejects_a_tie(self):
"""
Tests voting on a given setting, where there is a tie for accept and
for reject, with no remaining auth keys.
"""
proposal = SettingProposal(setting='my.config.setting',
value='myvalue',
nonce='somenonce')
proposal_id = _to_hash(proposal.SerializeToString())
candidate = SettingCandidate(
proposal_id=proposal_id,
proposal=proposal,
votes=[
SettingCandidate.VoteRecord(public_key='some_other_public_key',
vote=SettingVote.ACCEPT),
])
candidates = SettingCandidates(candidates=[candidate])
self._vote(proposal_id, 'my.config.setting', SettingVote.REJECT)
self._expect_get('sawtooth.settings.vote.authorized_keys',
self._public_key + ',some_other_public_key')
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_get('sawtooth.settings.vote.approval_threshold', '2')
# expect to update the proposals
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_set('sawtooth.settings.vote.proposals',
base64.b64encode(EMPTY_CANDIDATES))
self._expect_ok()
def test_propose(self):
"""
Tests proposing a value in ballot mode.
"""
self._propose('my.config.setting', 'myvalue')
self._expect_get('sawtooth.settings.vote.authorized_keys',
self._public_key)
self._expect_get('sawtooth.settings.vote.approval_threshold', '2')
self._expect_get('sawtooth.settings.vote.proposals')
proposal = SettingProposal(setting='my.config.setting',
value='myvalue',
nonce='somenonce')
proposal_id = _to_hash(proposal.SerializeToString())
record = SettingCandidate.VoteRecord(public_key=self._public_key,
vote=SettingVote.ACCEPT)
candidate = SettingCandidate(proposal_id=proposal_id,
proposal=proposal,
votes=[record])
candidates = SettingCandidates(candidates=[candidate])
# Get's again to update the entry
self._expect_get('sawtooth.settings.vote.proposals')
self._expect_set('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_ok()
def test_vote_approved(self):
"""
Tests voting on a given setting, where the setting is approved
"""
proposal = SettingProposal(setting='my.config.setting',
value='myvalue',
nonce='somenonce')
proposal_id = _to_hash(proposal.SerializeToString())
record = SettingCandidate.VoteRecord(
public_key="some_other_public_key", vote=SettingVote.ACCEPT)
candidate = SettingCandidate(proposal_id=proposal_id,
proposal=proposal,
votes=[record])
candidates = SettingCandidates(candidates=[candidate])
self._vote(proposal_id, 'my.config.setting', SettingVote.ACCEPT)
self._expect_get('sawtooth.settings.vote.authorized_keys',
self._public_key + ',some_other_public_key')
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_get('sawtooth.settings.vote.approval_threshold', '2')
# the vote should pass
self._expect_get('my.config.setting')
self._expect_set('my.config.setting', 'myvalue')
# expect to update the proposals
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_set('sawtooth.settings.vote.proposals',
base64.b64encode(EMPTY_CANDIDATES))
self._expect_ok()
def test_vote_counted(self):
"""
Tests voting on a given setting, where the vote is counted only.
"""
proposal = SettingProposal(setting='my.config.setting',
value='myvalue',
nonce='somenonce')
proposal_id = _to_hash(proposal.SerializeToString())
record = SettingCandidate.VoteRecord(
public_key="some_other_public_key", vote=SettingVote.ACCEPT)
candidate = SettingCandidate(proposal_id=proposal_id,
proposal=proposal,
votes=[record])
candidates = SettingCandidates(candidates=[candidate])
self._vote(proposal_id, 'my.config.setting', SettingVote.ACCEPT)
self._expect_get(
'sawtooth.settings.vote.authorized_keys',
self._public_key + ',some_other_public_key,third_public_key')
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
self._expect_get('sawtooth.settings.vote.approval_threshold', '3')
# expect to update the proposals
self._expect_get('sawtooth.settings.vote.proposals',
base64.b64encode(candidates.SerializeToString()))
record = SettingCandidate.VoteRecord(
public_key="some_other_public_key", vote=SettingVote.ACCEPT)
new_record = SettingCandidate.VoteRecord(public_key=self._public_key,
vote=SettingVote.ACCEPT)
candidate = SettingCandidate(proposal_id=proposal_id,
proposal=proposal,
votes=[record, new_record])
updated_candidates = SettingCandidates(candidates=[candidate])
self._expect_set(
'sawtooth.settings.vote.proposals',
base64.b64encode(updated_candidates.SerializeToString()))
self._expect_add_event('sawtooth.settings.vote.proposals')
self._expect_ok()