feat: basic RBAC support

backend/utils/misc.py

@@ -0,0 +1,15 @@
+import hashlib
+
+
+def get_gravatar_url(email):
+    # Trim leading and trailing whitespace from
+    # an email address and force all characters
+    # to lower case
+    address = str(email).strip().lower()
+
+    # Create a SHA256 hash of the final string
+    hash_object = hashlib.sha256(address.encode())
+    hash_hex = hash_object.hexdigest()
+
+    # Grab the actual image URL
+    return f"https://www.gravatar.com/avatar/{hash_hex}"