from authlib.common.urls import urlparse
def get_well_known_url(issuer, external=False):
"""Get well-known URI with issuer via Section 4.1.
:param issuer: URL of the issuer
:param external: return full external url or not
:return: URL
"""
# https://openid.net/specs/openid-connect-discovery-1_0.html#ProviderConfigurationRequest
if external:
return issuer.rstrip('/') + '/.well-known/openid-configuration'
parsed = urlparse.urlparse(issuer)
path = parsed.path
return path.rstrip('/') + '/.well-known/openid-configuration'