def _configure_backend(app):
"""A helper function used just to help modularize the code a bit."""
# Allocate the backend
# We use URLs to specify the backend. Currently we have file:// URLs (or
# URLs with no scheme) for the SqlDataRepository, and special empty:// and
# simulated:// URLs for empty or simulated data sources.
dataSource = urlparse.urlparse(app.config["DATA_SOURCE"], "file")
if dataSource.scheme == "simulated":
# Ignore the query string
randomSeed = app.config["SIMULATED_BACKEND_RANDOM_SEED"]
numCalls = app.config["SIMULATED_BACKEND_NUM_CALLS"]
variantDensity = app.config["SIMULATED_BACKEND_VARIANT_DENSITY"]
numVariantSets = app.config["SIMULATED_BACKEND_NUM_VARIANT_SETS"]
numReferenceSets = app.config["SIMULATED_BACKEND_NUM_REFERENCE_SETS"]
numReferencesPerReferenceSet = app.config[
"SIMULATED_BACKEND_NUM_REFERENCES_PER_REFERENCE_SET"]
numAlignmentsPerReadGroup = app.config[
"SIMULATED_BACKEND_NUM_ALIGNMENTS_PER_READ_GROUP"]
numReadGroupsPerReadGroupSet = app.config[
"SIMULATED_BACKEND_NUM_READ_GROUPS_PER_READ_GROUP_SET"]
numPhenotypeAssociations = app.config[
"SIMULATED_BACKEND_NUM_PHENOTYPE_ASSOCIATIONS"]
numPhenotypeAssociationSets = app.config[
"SIMULATED_BACKEND_NUM_PHENOTYPE_ASSOCIATION_SETS"]
numRnaQuantSets = app.config[
"SIMULATED_BACKEND_NUM_RNA_QUANTIFICATION_SETS"]
numExpressionLevels = app.config[
"SIMULATED_BACKEND_NUM_EXPRESSION_LEVELS_PER_RNA_QUANT_SET"]
dataRepository = datarepo.SimulatedDataRepository(
randomSeed=randomSeed,
numCalls=numCalls,
variantDensity=variantDensity,
numVariantSets=numVariantSets,
numReferenceSets=numReferenceSets,
numReferencesPerReferenceSet=numReferencesPerReferenceSet,
numReadGroupsPerReadGroupSet=numReadGroupsPerReadGroupSet,
numAlignments=numAlignmentsPerReadGroup,
numPhenotypeAssociations=numPhenotypeAssociations,
numPhenotypeAssociationSets=numPhenotypeAssociationSets,
numRnaQuantSets=numRnaQuantSets,
numExpressionLevels=numExpressionLevels)
elif dataSource.scheme == "empty":
dataRepository = datarepo.EmptyDataRepository()
elif dataSource.scheme == "file":
path = os.path.join(dataSource.netloc, dataSource.path)
dataRepository = datarepo.SqlDataRepository(path)
dataRepository.open(datarepo.MODE_READ)
else:
raise exceptions.ConfigurationException(
"Unsupported data source scheme: " + dataSource.scheme)
theBackend = backend.Backend(dataRepository)
theBackend.setRequestValidation(app.config["REQUEST_VALIDATION"])
theBackend.setDefaultPageSize(app.config["DEFAULT_PAGE_SIZE"])
theBackend.setMaxResponseLength(app.config["MAX_RESPONSE_LENGTH"])
return theBackend
def configure(configFile=None, baseConfig="ProductionConfig",
port=8000, extraConfig={}):
"""
TODO Document this critical function! What does it do? What does
it assume?
"""
file_handler = StreamHandler()
file_handler.setLevel(logging.WARNING)
app.logger.addHandler(file_handler)
configStr = 'ga4gh.server.serverconfig:{0}'.format(baseConfig)
app.config.from_object(configStr)
if os.environ.get('GA4GH_CONFIGURATION') is not None:
app.config.from_envvar('GA4GH_CONFIGURATION')
if configFile is not None:
app.config.from_pyfile(configFile)
app.config.update(extraConfig.items())
# Setup file handle cache max size
datamodel.fileHandleCache.setMaxCacheSize(
app.config["FILE_HANDLE_CACHE_MAX_SIZE"])
# Setup CORS
try:
cors.CORS(app, allow_headers='Content-Type')
except AssertionError:
pass
app.serverStatus = ServerStatus()
app.backend = _configure_backend(app)
if app.config.get('SECRET_KEY'):
app.secret_key = app.config['SECRET_KEY']
elif app.config.get('OIDC_PROVIDER'):
raise exceptions.ConfigurationException(
'OIDC configuration requires a secret key')
if app.config.get('CACHE_DIRECTORY'):
app.cache_dir = app.config['CACHE_DIRECTORY']
else:
app.cache_dir = '/tmp/ga4gh'
app.cache = FileSystemCache(
app.cache_dir, threshold=5000, default_timeout=600, mode=384)
app.oidcClient = None
app.myPort = port
if app.config.get('AUTH0_ENABLED'):
emails = app.config.get('AUTH0_AUTHORIZED_EMAILS', '').split(',')
[auth.authorize_email(e, app.cache) for e in emails]
if "OIDC_PROVIDER" in app.config:
# The oic client. If we're testing, we don't want to verify
# SSL certificates
app.oidcClient = oic.oic.Client(
verify_ssl=('TESTING' not in app.config))
try:
app.oidcClient.provider_config(app.config['OIDC_PROVIDER'])
except requests.exceptions.ConnectionError:
configResponse = message.ProviderConfigurationResponse(
issuer=app.config['OIDC_PROVIDER'],
authorization_endpoint=app.config['OIDC_AUTHZ_ENDPOINT'],
token_endpoint=app.config['OIDC_TOKEN_ENDPOINT'],
revocation_endpoint=app.config['OIDC_TOKEN_REV_ENDPOINT'])
app.oidcClient.handle_provider_config(configResponse,
app.config['OIDC_PROVIDER'])
# The redirect URI comes from the configuration.
# If we are testing, then we allow the automatic creation of a
# redirect uri if none is configured
redirectUri = app.config.get('OIDC_REDIRECT_URI')
if redirectUri is None and app.config.get('TESTING'):
redirectUri = 'https://{0}:{1}/oauth2callback'.format(
socket.gethostname(), app.myPort)
app.oidcClient.redirect_uris = [redirectUri]
if redirectUri is []:
raise exceptions.ConfigurationException(
'OIDC configuration requires a redirect uri')
# We only support dynamic registration while testing.
if ('registration_endpoint' in app.oidcClient.provider_info and
app.config.get('TESTING')):
app.oidcClient.register(
app.oidcClient.provider_info["registration_endpoint"],
redirect_uris=[redirectUri])
else:
response = message.RegistrationResponse(
client_id=app.config['OIDC_CLIENT_ID'],
client_secret=app.config['OIDC_CLIENT_SECRET'],
redirect_uris=[redirectUri],
verify_ssl=False)
app.oidcClient.store_registration_info(response)