1 files changed, 83 insertions, 0 deletions
diff --git a/k8s/k8sclient/sans_parser.py b/k8s/k8sclient/sans_parser.py
new file mode 100644
index 0000000..74eaf5d
--- /dev/null
+++ b/k8s/k8sclient/sans_parser.py
@@ -0,0 +1,83 @@
+# ============LICENSE_START=======================================================
+# org.onap.dcae
+# ================================================================================
+# Copyright (c) 2021 Nokia. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END=========================================================
+
+from uritools import urisplit
+from fqdn import FQDN
+import validators
+from validators.utils import ValidationFailure
+
+
+class SansParser:
+    def parse_sans(self, sans):
+        """
+        Method for parsing sans. As input require SANs separated by comma (,)
+        Return Map with sorted SANs by type:
+            ips -> IPv4 or IPv6
+            dnss -> dns name
+            emails -> email
+            uris -> uri
+
+        Example usage:
+            SansParser().parse_sans("example.org,onap@onap.org,127.0.0.1,onap://cluster.local/")
+            Output: {   "ips": [127.0.0.1],
+                        "uris": [onap://cluster.local/],
+                        "dnss": [example.org],
+                        "emails": [onap@onap.org]}
+        """
+        sans_map = {"ips": [],
+                    "uris": [],
+                    "dnss": [],
+                    "emails": []}
+        sans_arr = sans.split(",")
+        for san in sans_arr:
+            if self._is_email(san):
+                sans_map["emails"].append(san)
+            elif self._is_ip_v4(san) or self._is_ip_v6(san):
+                sans_map["ips"].append(san)
+            elif self._is_dns(san):
+                sans_map["dnss"].append(san)
+            elif self._is_uri(san):
+                sans_map["uris"].append(san)
+
+        return sans_map
+
+    def _is_email(self, san):
+        try:
+            return validators.email(san)
+        except ValidationFailure:
+            return False
+
+    def _is_ip_v4(self, san):
+        try:
+            return validators.ipv4(san)
+        except ValidationFailure:
+            return False
+
+    def _is_ip_v6(self, san):
+        try:
+            return validators.ipv6(san)
+        except ValidationFailure:
+            return False
+
+    def _is_uri(self, san):
+        parts = urisplit(san)
+        return parts.isuri()
+
+    def _is_dns(self, san):
+        fqdn = FQDN(san, min_labels=1)
+        return fqdn.is_valid