def StartService(config):
# load the eservice database
try:
dbfile_name = config['Service']['EnclaveServiceDatabaseFile']
except KeyError:
logger.error(
'missing required configuration for enclave service database')
sys.exit(-1)
try:
eservice_db.load_database(dbfile_name)
except Exception as e:
logger.error('error loading eservice database from file %s', str(e))
sys.exit(-1)
try:
http_port = config['Service']['HttpPort']
http_host = config['Service']['Host']
worker_threads = config['Service'].get('WorkerThreads', 8)
reactor_threads = config['Service'].get('ReactorThreads', 8)
except KeyError as ke:
logger.error('missing configuration for %s', str(ke))
sys.exit(-1)
logger.info('service started on host %s, port %s', http_host, http_port)
thread_pool = ThreadPool(maxthreads=worker_threads)
thread_pool.start()
reactor.addSystemEventTrigger('before', 'shutdown', thread_pool.stop)
flask_app = toxaway.views.register(config)
flask_site = WSGIResource(reactor, reactor.getThreadPool(), flask_app)
root = Resource()
root.putChild(b'shutdown', ShutdownResource())
root.putChild(b'flask', flask_site)
files = config.get('StaticContent', {})
logger.info('files=%s', files)
for key, val in files.items():
logger.info('map <%s> to <%s>', key, val)
root.putChild(key.encode(), File(val.encode()))
site = Site(root, timeout=60)
site.displayTracebacks = True
reactor.suggestThreadPoolSize(reactor_threads)
endpoint = TCP4ServerEndpoint(reactor,
http_port,
backlog=32,
interface=http_host)
endpoint.listen(site)
def _load_database_(config, create=False):
eservice_db.clear_all_data()
database_file = config['Service']['EnclaveServiceDatabaseFile']
if create and not os.path.exists(database_file):
_save_database_(config)
loaded = False
try:
loaded = eservice_db.load_database(database_file, merge=False)
except Exception as e:
pass
if not loaded:
logger.error('unable to load eservice data from %s', database_file)
sys.exit(-1)
def command_eservice_db(state, bindings, pargs):
"""controller command to manage the enclave service database
"""
parser = argparse.ArgumentParser(prog='eservice')
subparsers = parser.add_subparsers(dest='command')
add_parser = subparsers.add_parser(
'add', description='add an eservice to the database')
add_parser.add_argument('--url',
help='URL for the enclave service to add',
type=str,
required=True)
add_parser.add_argument('--name',
help='Short name for the enclave service',
type=str,
required=True)
clear_parser = subparsers.add_parser(
'clear', description='remove all eservices in the database')
list_parser = subparsers.add_parser(
'list', description='list eservices in the database')
load_parser = subparsers.add_parser(
'load', description='load an eservice database')
load_parser.add_argument('--database',
help='Name of the eservice database to use',
type=str,
required=True)
merge_group = load_parser.add_mutually_exclusive_group(required=False)
merge_group.add_argument('--merge',
help='Merge new database with current db',
dest='merge',
action='store_true')
merge_group.add_argument('--no-merge',
help='Overwrite current db with new database',
dest='merge',
action='store_false')
load_parser.set_defaults(merge=False)
remove_parser = subparsers.add_parser(
'remove', description='remove eservice from the database')
remove_group = remove_parser.add_mutually_exclusive_group(required=True)
remove_group.add_argument('--name',
help='Short name for enclave service to remove',
type=str)
save_parser = subparsers.add_parser(
'save', description='save the current eservice database')
save_parser.add_argument('--database',
help='Name of the eservice database to use',
type=str,
required=True)
options = parser.parse_args(pargs)
default_database = state.get(['Service', 'EnclaveServiceDatabaseFile'])
ledger_config = state.get(['Sawtooth'])
if options.command == 'add':
if not eservice_db.add_by_url(
ledger_config, options.url, name=options.name, update=True):
raise Exception(
'failed to add eservice {0} to the database'.format(
options.name))
return
if options.command == 'clear':
eservice_db.clear_all_data()
return
if options.command == 'list':
enclave_names = list(eservice_db.get_enclave_names())
enclave_names.sort()
for enclave_name in enclave_names:
enclave_info = eservice_db.get_by_name(enclave_name)
enclave_short_id = _hashed_identity_(enclave_info.enclave_id)
print("{0:<18} {1:<18} {2}".format(enclave_name, enclave_short_id,
enclave_info.url))
if options.command == 'load':
eservice_db.load_database(options.database, options.merge)
return
if options.command == 'remove':
eservice_db.remove_by_name(name=options.name)
return
if options.command == 'save':
eservice_db.save_database(options.database, True)
return
raise Exception('unknown subcommand')
def command_eservice_db(state, bindings, pargs):
"""controller command to manage the enclave service database
"""
parser = argparse.ArgumentParser(prog='eservice_db')
parser.add_argument('-q',
'--quiet',
help='Do not print the result',
action='store_true')
subparsers = parser.add_subparsers(dest='command')
add_parser = subparsers.add_parser(
'add', description='add an eservice to the database')
add_parser.add_argument('--url',
help='URL for the enclave service to add',
type=str,
required=True)
add_parser.add_argument('--name',
help='Short name for the enclave service',
type=str,
required=True)
clear_parser = subparsers.add_parser(
'clear', description='remove all eservices in the database')
list_parser = subparsers.add_parser(
'list', description='list eservices in the database')
info_parser = subparsers.add_parser(
'info', description='get information about a specific eservice')
info_parser.add_argument('--name',
help='Short name for enclave service',
type=str,
required=True)
info_parser.add_argument('-s',
'--symbol',
help='binding symbol for the result',
type=str)
info_parser.add_argument('-f',
'--field',
help='field to display',
type=str)
load_parser = subparsers.add_parser(
'load', description='load an eservice database')
load_parser.add_argument('--database',
help='Name of the eservice database to use',
type=str,
required=True)
merge_group = load_parser.add_mutually_exclusive_group(required=False)
merge_group.add_argument('--merge',
help='Merge new database with current db',
dest='merge',
action='store_true')
merge_group.add_argument('--no-merge',
help='Overwrite current db with new database',
dest='merge',
action='store_false')
load_parser.set_defaults(merge=False)
remove_parser = subparsers.add_parser(
'remove', description='remove eservice from the database')
remove_group = remove_parser.add_mutually_exclusive_group(required=True)
remove_group.add_argument('--name',
help='Short name for enclave service to remove',
type=str)
save_parser = subparsers.add_parser(
'save', description='save the current eservice database')
save_parser.add_argument('--database',
help='Name of the eservice database to use',
type=str,
required=True)
options = parser.parse_args(pargs)
default_database = state.get(['Service', 'EnclaveServiceDatabaseFile'])
ledger_config = state.get(['Ledger'])
if options.command == 'add':
if not eservice_db.add_by_url(
ledger_config, options.url, name=options.name, update=True):
raise Exception(
'failed to add eservice {0} to the database'.format(
options.name))
return
if options.command == 'clear':
eservice_db.clear_all_data()
return
if options.command == 'list':
enclave_names = list(eservice_db.get_enclave_names())
enclave_names.sort()
for enclave_name in enclave_names:
enclave_info = eservice_db.get_by_name(enclave_name)
enclave_short_id = _hashed_identity_(enclave_info.enclave_id)
print("{0:<18} {1:<18} {2}".format(enclave_name, enclave_short_id,
enclave_info.url))
return
if options.command == 'info':
enclave_info = eservice_db.get_by_name(options.name)
enclave_info.verify(state.get(['Ledger']))
enclave = {}
enclave['short_name'] = options.name
enclave['short_id'] = _hashed_identity_(enclave_info.enclave_id)
enclave['enclave_id'] = enclave_info.enclave_id
enclave['url'] = enclave_info.url
enclave['last_verified_time'] = enclave_info.last_verified_time
enclave['interpreter'] = enclave_info.client.interpreter
enclave[
'storage_service_url'] = enclave_info.client.storage_service_url
enclave['verifying_key'] = enclave_info.client.verifying_key
enclave['encryption_key'] = enclave_info.client.encryption_key
result = enclave
if options.field:
result = enclave[options.field]
if not options.quiet:
print(json.dumps(result, indent=4, sort_keys=True))
if options.symbol:
bindings.bind(options.symbol, result)
return
if options.command == 'load':
eservice_db.load_database(options.database, options.merge)
return
if options.command == 'remove':
eservice_db.remove_by_name(name=options.name)
return
if options.command == 'save':
eservice_db.save_database(options.database, True)
return
raise Exception('unknown subcommand')
# this can probably be simplified to just a comparison of
# the two objects
assert einfo_by_name.name == e
assert einfo_by_enclave_id.name == e
assert einfo_by_name.name == einfo_by_enclave_id.name
assert einfo_by_name.enclave_id == einfo_by_enclave_id.enclave_id
# -----------------------------------------------------------------
# logger.info('verify that database can be saved and loaded')
# -----------------------------------------------------------------
initial_hash = compute_database_hash()
eservice_db.save_database(options.eservice_db, overwrite=True)
#load db freshly and check
eservice_db.load_database(options.eservice_db, merge=False)
assert compute_database_hash(
) == initial_hash, 'reloaded database has changed, no merge'
#reload db again and check
eservice_db.load_database(options.eservice_db, merge=True)
assert compute_database_hash(
) == initial_hash, 'reloaded database has changed, merge'
# -----------------------------------------------------------------
# logger.info('test removing entries')
# -----------------------------------------------------------------
einfo0 = eservice_db.get_by_name(names[0])
assert eservice_db.remove_by_name(names[0]), 'error removing by name'
assert eservice_db.get_by_name(names[0]) is None, 'failed to remove by name'