feat: Add signature checker

signature-checker.py

@@ -0,0 +1,50 @@
+import json
+import account
+import requests
+
+# Plugin Data
+info = {
+    "name": "Check signatures",
+    "description": "Validate signatures",
+    "version": "1.0",
+    "author": "Nathan.Woodburn/"
+}
+
+# Functions
+functions = {
+    "validate":{
+        "name": "Validate signature",
+        "type": "default",
+        "description": "Validate that a message was signed by a specific domain",
+        "params": {
+            "domain": {
+                "name": "Signing domain",
+                "type": "text",
+            },
+            "message": {
+                "name": "Message",
+                "type": "text",
+            },
+            "signature": {
+                "name": "Signature",
+                "type": "text",
+            }
+        },
+        "returns": {
+            "status": 
+            {
+                "name": "Validity of the signature",
+                "type": "text"
+            }
+        }
+    }
+}
+
+def validate(params, authentication):
+    domain = params["domain"]
+    message = params["message"]
+    signature = params["signature"]
+    
+    if account.verifyMessageWithName(domain, signature,message):
+        return {"status": "Valid"}
+    return {"status": "Invalid signature"}