def render_GET(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
request.setResponseCode(401) # Not Authorized
return msg + RN
def gotConnection(conn):
request.setResponseCode(200)
def writeStatusPayload():
d = {}
d['timestamp'] = int(time.time())
d['reservation_state'] = conn.reservation_state
d['provision_state'] = conn.provision_state
d['lifecycle_state'] = conn.lifecycle_state
payload = json.dumps(d) + RN
request.write(payload)
writeStatusPayload()
state.subscribe(conn.connection_id, lambda : writeStatusPayload() )
return server.NOT_DONE_YET
def noConnection(err):
log.msg('Connection id %s specified on longpoll request does not exist' % self.connection_id)
request.setResponseCode(404)
request.write('No connection with id %s' % self.connection_id)
request.finish()
log.msg('Longpoll state request for %s' % self.connection_id, system=LOG_SYSTEM)
d = self.provider.getConnection(self.connection_id)
d.addCallbacks(gotConnection, noConnection)
return server.NOT_DONE_YET
def render_GET(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
request.setResponseCode(401) # Not Authorized
return msg + RN
def gotConnection(conn):
request.setResponseCode(200)
def writeStatusPayload():
d = {}
d['timestamp'] = int(time.time())
d['reservation_state'] = conn.reservation_state
d['provision_state'] = conn.provision_state
d['lifecycle_state'] = conn.lifecycle_state
payload = json.dumps(d) + RN
request.write(payload)
writeStatusPayload()
state.subscribe(conn, lambda : writeStatusPayload() )
return server.NOT_DONE_YET
def noConnection(err):
log.msg('Connection id %s specified on longpoll request does not exist' % self.connection_id)
request.setResponseCode(404)
request.write('No connection with id %s' % self.connection_id)
request.finish()
log.msg('Longpoll state request for %s' % self.connection_id, system=LOG_SYSTEM)
d = self.provider.getConnection(self.connection_id)
d.addCallbacks(gotConnection, noConnection)
return server.NOT_DONE_YET
def render_POST(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(
request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
state_command = request.content.read()
state_command = state_command.upper()
if state_command not in ('COMMIT', 'ABORT', 'PROVISION', 'RELEASE',
'TERMINATE'):
payload = 'Invalid state command specified' + RN
return _requestResponse(request, 400, payload) # Client Error
header = nsa.NSIHeader('rest-dud-requester',
'rest-dud-provider') # completely bogus header
if state_command == 'COMMIT':
d = self.provider.reserveCommit(header, self.connection_id,
request_info)
elif state_command == 'ABORT':
d = self.provider.reserveAbort(header, self.connection_id,
request_info)
elif state_command == 'PROVISION':
d = self.provider.provision(header, self.connection_id,
request_info)
elif state_command == 'RELEASE':
d = self.provider.release(header, self.connection_id, request_info)
elif state_command == 'TERMINATE':
d = self.provider.terminate(header, self.connection_id,
request_info)
else:
payload = 'Unrecognized command (should not happend)' + RN
return _requestResponse(request, 500, payload) # Server Error
def commandDone(_):
payload = 'ACK' + RN
_finishRequest(request, 200, payload) # OK
def commandError(err):
log.msg('Error during state switch: %s' % str(err),
system=LOG_SYSTEM)
payload = str(err.getErrorMessage()) + RN
if isinstance(err.value, error.NSIError):
_finishRequest(request, 400, payload) # Client Error
else:
log.err(err)
_finishRequest(request, 500, payload) # Server Error
d.addCallbacks(commandDone, commandError)
return server.NOT_DONE_YET
def render_POST(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
state_command = request.content.read()
state_command = state_command.upper()
if state_command not in ('COMMIT', 'ABORT', 'PROVISION', 'RELEASE', 'TERMINATE'):
payload = 'Invalid state command specified' + RN
return _requestResponse(request, 400, payload) # Client Error
header = nsa.NSIHeader('rest-dud-requester', 'rest-dud-provider') # completely bogus header
if state_command == 'COMMIT':
d = self.provider.reserveCommit(header, self.connection_id, request_info)
elif state_command == 'ABORT':
d = self.provider.reserveAbort(header, self.connection_id, request_info)
elif state_command == 'PROVISION':
d = self.provider.provision(header, self.connection_id, request_info)
elif state_command == 'RELEASE':
d = self.provider.release(header, self.connection_id, request_info)
elif state_command == 'TERMINATE':
d = self.provider.terminate(header, self.connection_id, request_info)
else:
payload = 'Unrecognized command (should not happend)' + RN
return _requestResponse(request, 500, payload) # Server Error
def commandDone(_):
payload = 'ACK' + RN
_finishRequest(request, 200, payload) # OK
def commandError(err):
log.msg('Error during state switch: %s' % str(err), system=LOG_SYSTEM)
payload = str(err.getErrorMessage()) + RN
if isinstance(err.value, error.NSIError):
_finishRequest(request, 400, payload) # Client Error
else:
log.err(err)
_finishRequest(request, 500, payload) # Server Error
d.addCallbacks(commandDone, commandError)
return server.NOT_DONE_YET
def render_GET(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
d = self.provider.getConnection(self.connection_id)
def gotConnection(conn):
d = conn2dict(conn)
payload = json.dumps(d) + RN
_finishRequest(request, 200, payload)
def noConnection(err):
payload = 'No connection with id %s' % self.connection_id
_finishRequest(request, 404, payload)
d.addCallbacks(gotConnection, noConnection)
return server.NOT_DONE_YET
def render_GET(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
d = self.provider.getConnection(self.connection_id)
@defer.inlineCallbacks
def gotConnection(conn):
d = yield conn2dict(conn)
payload = json.dumps(d) + RN
_finishRequest(request, 200, payload, {'Content-Type': 'application/json'})
def noConnection(err):
payload = 'No connection with id %s' % self.connection_id
log.msg(payload, system=LOG_SYSTEM)
_finishRequest(request, 404, payload)
d.addCallbacks(gotConnection, noConnection)
return server.NOT_DONE_YET
def render_POST(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
payload = request.content.read()
if len(payload) == 0:
log.msg('No data received in request', system=LOG_SYSTEM)
payload = 'No data received in request' + RN
return _requestResponse(request, 400, payload) # Bad Request
if len(payload) > 32*1024:
log.msg('Rejecting request, payload too large. Length %i' % len(payload), system=LOG_SYSTEM)
payload = 'Requests too large' + RN
return _requestResponse(request, 413, payload) # Payload Too Large
try:
data = json.loads(payload)
except ValueError:
log.msg('Invalid JSON data received, returning 400', system=LOG_SYSTEM)
payload = 'Invalid JSON data' + RN
return _requestResponse(request, 400, payload) # Bad Request
def createResponse(connection_id):
payload = 'Connection created' + RN
header = { 'location': self.base_path + '/' + connection_id }
_finishRequest(request, 201, payload, header) # Created
# extract stuffs
try:
source = data['source']
if not source.startswith(cnt.URN_OGF_PREFIX):
source = cnt.URN_OGF_PREFIX + source
destination = data['destination']
if not destination.startswith(cnt.URN_OGF_PREFIX):
destination = cnt.URN_OGF_PREFIX + destination
source_stp = helper.createSTP(str(source))
destination_stp = helper.createSTP(str(destination))
start_time = xmlhelper.parseXMLTimestamp(data['start']) if 'start' in data else None
end_time = xmlhelper.parseXMLTimestamp(data['end']) if 'end' in data else None
capacity = data['capacity'] if 'capacity' in data else 0 # Maybe None should just be best effort
# fillers, we don't really do this in this api
symmetric = False
ero = None
params = None
version = 0
service_def = nsa.Point2PointService(source_stp, destination_stp, capacity, cnt.BIDIRECTIONAL, symmetric, ero, params)
schedule = nsa.Schedule(start_time, end_time)
criteria = nsa.Criteria(version, schedule, service_def)
header = nsa.NSIHeader('rest-dud-requester', 'rest-dud-provider') # completely bogus header
d = self.provider.reserve(header, None, None, None, criteria, request_info) # nones are connectoin id, global resv id, description
d.addCallbacks(createResponse, _createErrorResponse, errbackArgs=(request,))
return server.NOT_DONE_YET
except Exception as e:
error_code = _errorCode(e)
return _requestResponse(request, error_code, str(e))
def render_POST(self, request):
allowed, msg, request_info = requestauthz.checkAuthz(
request, self.allowed_hosts)
if not allowed:
payload = msg + RN
return _requestResponse(request, 401, payload) # Not Authorized
payload = request.content.read()
if len(payload) == 0:
log.msg('No data received in request', system=LOG_SYSTEM)
payload = 'No data received in request' + RN
return _requestResponse(request, 400, payload) # Bad Request
if len(payload) > 32 * 1024:
log.msg('Rejecting request, payload too large. Length %i' %
len(payload),
system=LOG_SYSTEM)
payload = 'Requests too large' + RN
return _requestResponse(request, 413, payload) # Payload Too Large
try:
data = json.loads(payload)
except ValueError:
log.msg('Invalid JSON data received, returning 400',
system=LOG_SYSTEM)
payload = 'Invalid JSON data' + RN
return _requestResponse(request, 400, payload) # Bad Request
def createResponse(connection_id):
payload = 'Connection created' + RN
header = {'location': self.base_path + '/' + connection_id}
_finishRequest(request, 201, payload, header) # Created
return connection_id
# extract stuffs
try:
source = data['source']
if not source.startswith(cnt.URN_OGF_PREFIX):
source = cnt.URN_OGF_PREFIX + source
destination = data['destination']
if not destination.startswith(cnt.URN_OGF_PREFIX):
destination = cnt.URN_OGF_PREFIX + destination
source_stp = helper.createSTP(str(source))
destination_stp = helper.createSTP(str(destination))
start_time = xmlhelper.parseXMLTimestamp(
data[START_TIME]) if START_TIME in data else None
end_time = xmlhelper.parseXMLTimestamp(
data[END_TIME]) if END_TIME in data else None
capacity = data[
'capacity'] if 'capacity' in data else 0 # Maybe None should just be best effort
# auto commit (default true) and auto provision (defult false)
auto_commit = False if 'auto_commit' in data and not data[
'auto_commit'] else True
auto_provision = True if 'auto_provision' in data and data[
'auto_provision'] else False
if auto_provision and not auto_commit:
msg = 'Cannot have auto-provision without auto-commit'
log.msg('Rejecting request: ' + msg, system=LOG_SYSTEM)
return _requestResponse(request, 400, msg + RN) # Bad Request
# fillers, we don't really do this in this api
symmetric = False
ero = None
params = None
version = 0
service_def = nsa.Point2PointService(source_stp, destination_stp,
capacity, cnt.BIDIRECTIONAL,
symmetric, ero, params)
schedule = nsa.Schedule(start_time, end_time)
criteria = nsa.Criteria(version, schedule, service_def)
header = nsa.NSIHeader(
'rest-dud-requester',
'rest-dud-provider') # completely bogus header
d = self.provider.reserve(
header, None, None, None, criteria, request_info
) # nones are connection_id, global resv id, description
d.addCallbacks(createResponse,
_createErrorResponse,
errbackArgs=(request, ))
if auto_commit:
@defer.inlineCallbacks
def connectionCreated(conn_id):
if conn_id is None:
# error creating connection
# not exactly optimal code flow here, but chainining the callback correctly for this is tricky
return
conn = yield self.provider.getConnection(conn_id)
def stateUpdate():
log.msg(
'stateUpdate reservation_state: %s, provision_state: %s'
% (str(conn.reservation_state),
str(conn.provision_state)),
debug=True,
system=LOG_SYSTEM)
if conn.reservation_state == state.RESERVE_HELD:
self.provider.reserveCommit(
header, conn_id, request_info)
if conn.reservation_state == state.RESERVE_START and conn.provision_state == state.RELEASED and auto_provision:
self.provider.provision(header, conn_id,
request_info)
if conn.provision_state == state.PROVISIONED:
state.desubscribe(conn_id, stateUpdate)
state.subscribe(conn_id, stateUpdate)
d.addCallback(connectionCreated)
return server.NOT_DONE_YET
except Exception as e:
#log.err(e, system=LOG_SYSTEM)
log.msg('Error creating connection: %s' % str(e),
system=LOG_SYSTEM)
error_code = _errorCode(e)
return _requestResponse(request, error_code, str(e))
