def add(quorum_id=None):
req = get_json(request, app)
neighbours = req[NEIGHBOURS]
# try to access peer object (if peer is inaccessible then peer has not started)
try:
# check and make sure peer is in quorum
if not app.config[PBFT_INSTANCES].in_committee(quorum_id):
app.logger.error(
"Peer not in committee {} can not join PBFT".format(
quorum_id))
return ROUTE_EXECUTION_FAILED.format(
msg="Peer not in committee {} can not join PBFT".format(
'quorum_id'))
except AttributeError as e:
app.logger.error(
"Peer not started request /start/<quorum_id_a>/<quorum_id_b> first"
)
app.logger.error(e)
return ROUTE_EXECUTION_FAILED.format(msg="") + "Peer not started request " \
"/start/<quorum_id_a>/<quorum_id_b> first \n\n\n{}".format(
e)
app.logger.info("Adding quorum ID {q} with neighbours {n}".format(
q=quorum_id, n=neighbours))
# store neighbour info in app
app.config[QUORUMS][quorum_id] = neighbours
return ROUTE_EXECUTED_CORRECTLY
def join(quorum_id=None):
req = get_json(request, app)
neighbours = req[NEIGHBOURS]
# try to access peer object (if peer is inaccessible then peer has not started)
try:
# check and make sure peer is in quorum
if not app.config[PBFT_INSTANCES].in_committee(quorum_id):
app.logger.error(
"Peer not in committee {} can not join PBFT".format(
quorum_id))
return ROUTE_EXECUTION_FAILED.format(
msg="Peer not in committee {} can not join PBFT".format(
'quorum_id'))
except AttributeError as e:
app.logger.error(
"Peer not started request /start/<quorum_id_a>/<quorum_id_b> first"
)
app.logger.error(e)
return ROUTE_EXECUTION_FAILED.format(msg="") + "Peer not started request " \
"/start/<quorum_id_a>/<quorum_id_b> first \n\n\n{}".format(e)
app.logger.info("Joining {q} with neighbours {n}".format(q=quorum_id,
n=neighbours))
# store neighbour info in app
app.config[QUORUMS][quorum_id] = neighbours
# get sawtooth container ip address
ips = [n.pop(DOCKER_IP) for n in app.config[QUORUMS][quorum_id]]
ips.append(app.config[PBFT_INSTANCES].ip(quorum_id))
app.config[PBFT_INSTANCES].peer_join(
quorum_id, ips) # use sawtooth container ip to start sawtooth
return ROUTE_EXECUTED_CORRECTLY
def forward(app, url_subdirectory: str, quorum_id: str, json_data):
neighbour__in_target_quorum = []
app.logger.info('Looking for neighbour to forward request to')
app.logger.debug('request:')
app.logger.debug(json_data)
for check_quorum_id in list(app.config[QUORUMS].keys()):
for intersecting_quorum in app.config[QUORUMS][check_quorum_id]:
intersecting_quorum_id = intersecting_quorum[QUORUM_ID]
if intersecting_quorum_id == quorum_id:
neighbour__in_target_quorum.append(intersecting_quorum)
forwarding_to_neighbour = random.choice(neighbour__in_target_quorum)
url = URL_REQUEST.format(hostname=forwarding_to_neighbour[API_IP],
port=forwarding_to_neighbour[PORT])
url += url_subdirectory
app.logger.info(
"request in quorum this peer is not a member of forwarding to "
"{}".format(url))
try:
forwarding_request = requests.post(url, json=json_data)
forwarding_request = get_plain_text(forwarding_request)
app.logger.info(
"response form forward is {}".format(forwarding_request))
return forwarding_request
except ConnectionError as e:
app.logger.error("{host}:{port} unreachable".format(
host=forwarding_to_neighbour[API_IP],
port=forwarding_to_neighbour[PORT]))
app.logger.error(e)
return ROUTE_EXECUTION_FAILED.format(
msg="forward to {} failed".format(url))
def get_json(request, app):
# try and parse json
try:
req = request.get_json(force=True)
except KeyError as e:
app.logger.error(e)
return ROUTE_EXECUTION_FAILED.format(msg=e)
return req
def forward(app, url_subdirectory: str, quorum_id: str, json_data):
for check_quorum_id in list(app.config[QUORUMS].keys()):
for intersecting_quorum in app.config[QUORUMS][check_quorum_id]:
intersecting_quorum_id = intersecting_quorum[QUORUM_ID]
if intersecting_quorum_id == quorum_id:
url = URL_REQUEST.format(hostname=intersecting_quorum[API_IP],
port=intersecting_quorum[PORT])
url += url_subdirectory
app.logger.info(
"request in quorum this peer is not a member of forwarding to "
"{}".format(url))
try:
forwarding_request = requests.post(url, json=json_data)
forwarding_request = get_plain_text(forwarding_request)
app.logger.info("response form forward is {}".format(
forwarding_request))
return forwarding_request
except ConnectionError as e:
app.logger.error("{host}:{port} unreachable".format(
host=intersecting_quorum[API_IP],
port=intersecting_quorum[PORT]))
app.logger.error(e)
return ROUTE_EXECUTION_FAILED.format(
msg="forward to {} failed".format(url))
def ip(quorum_id):
if app.config[PBFT_INSTANCES].in_committee(quorum_id):
return app.config[PBFT_INSTANCES].ip(quorum_id)
else:
return ROUTE_EXECUTION_FAILED.format(
msg="peer not in quorum {}".format(quorum_id))