Add smart-configuration view

apps/fhir/bluebutton/views/__init__.py

@@ -0,0 +1 @@
+from .smart_configuration import smart_configuration, base_issuer, build_endpoint_info  # NOQA

apps/fhir/bluebutton/views/smart_configuration.py

@@ -0,0 +1,96 @@
+import logging
+
+from django.http import JsonResponse
+from django.views.decorators.http import require_GET
+from collections import OrderedDict
+from django.conf import settings
+from django.urls import reverse
+
+import apps.logging.request_logger as bb2logging
+
+logger = logging.getLogger(bb2logging.HHS_SERVER_LOGNAME_FMT.format(__name__))
+
+
+@require_GET
+def smart_configuration(request):
+    """
+    Views that returns openid_configuration.
+    """
+    data = OrderedDict()
+    issuer = base_issuer(request)
+    #v2 = request.path.endswith('openid-configuration-v2') or request.path.endswith('openidConfigV2')
+    v2 = True
+    data = build_endpoint_info(data, issuer=issuer, v2=v2)
+    return JsonResponse(data)
+
+
+def base_issuer(request):
+    """
+    define the base url for issuer
+
+    """
+    issuer = getattr(settings, 'HOSTNAME_URL', 'http://localhost:8000')
+
+    if "http://" in issuer.lower():
+        pass
+    elif "https://" in issuer.lower():
+        pass
+    else:
+        logger.debug("HOSTNAME_URL [%s] "
+                     "does not contain http or https prefix. "
+                     "Issuer:%s" % (settings.HOSTNAME_URL, issuer))
+        # no http/https prefix in HOST_NAME_URL so we add it
+        if request.is_secure():
+            http_mode = 'https://'
+        else:
+            http_mode = 'http://'
+
+        # prefix hostname with http/https://
+        issuer = http_mode + issuer
+
+    return issuer
+
+
+def build_endpoint_info(data=OrderedDict(), v2=False, issuer=""):
+    """
+    construct the data package
+    issuer should be http: or https:// prefixed url.
+
+    :param data:
+    :return:
+    """
+    # Removing below per warning about ommitting this when not including sso-openid-connnect capability. 
+    #data["issuer"] = issuer
+
+    data["authorization_endpoint"] = issuer + \
+        reverse('oauth2_provider:authorize' if not v2 else 'oauth2_provider_v2:authorize-v2')
+    data["token_endpoint"] = issuer + \
+        reverse('oauth2_provider:token' if not v2 else 'oauth2_provider_v2:token-v2')
+    data["userinfo_endpoint"] = issuer + \
+        reverse('openid_connect_userinfo' if not v2 else 'openid_connect_userinfo_v2')
+    data["ui_locales_supported"] = ["en-US", ]
+    data["service_documentation"] = getattr(settings,
+                                            'DEVELOPER_DOCS_URI',
+                                            "https://cmsgov.github.io/bluebutton-developer-help/")
+    data["op_tos_uri"] = settings.TOS_URI
+    data["grant_types_supported"] = []
+
+    for i in settings.GRANT_TYPES:
+        data["grant_types_supported"].append(i[0])
+
+    data["grant_types_supported"].append("refresh_token")
+
+    data["grant_types_supported"].remove("implicit")
+
+    data["response_types_supported"] = ["code", "token"]
+    data["fhir_metadata_uri"] = issuer + \
+        reverse('fhir_conformance_metadata' if not v2 else 'fhir_conformance_metadata_v2')
+
+
+    data["capabilities"] = ["launch-standalone", "client-confidential-symmetric", "permission-v1"]
+
+    data["code_challenge_methods_supported"] = ["S256"]
+
+    data["grant_types_supported"] = ["authorization_code"]
+
+    return data