Add Pydantic support for JRD (resolves #1)

simple_webfinger/models/webfinger.py

@@ -0,0 +1,32 @@
+from pydantic import BaseModel, AnyUrl, FutureDatetime
+from typing import Optional, List, Mapping
+
+
+class JSONResourceDefinitionLink(BaseModel):
+    """
+    Link element of a JSON Resource Definition (JRD)
+
+    https://www.rfc-editor.org/rfc/rfc7033#section-4.4.4
+    """
+
+    rel: str
+    type: Optional[str] = None
+    href: Optional[AnyUrl] = None
+    titles: Optional[Mapping[str, str]] = None
+    properties: Optional[Mapping[str, str]] = None
+    template: Optional[str] = None
+
+
+class JSONResourceDefinition(BaseModel):
+    """
+    JSON Resource Definition (JRD)
+
+    https://www.rfc-editor.org/rfc/rfc6415#appendix-A
+    https://www.rfc-editor.org/rfc/rfc7033#section-4.4
+    """
+
+    subject: str
+    expires: Optional[FutureDatetime] = None
+    aliases: Optional[List[str]] = None
+    properties: Optional[Mapping[str, str]] = None
+    links: Optional[List[JSONResourceDefinitionLink]] = None