added IRI validation using rfc3987 package

dva-processing/pyproject.toml

@@ -23,6 +23,7 @@ dependencies = [
 	"uvicorn>=0.34.3",
 	"validators>=0.35.0",
 	"pydantic-yaml>=1.6.0",
+	"rfc3987>=1.3.8",
 ]
 classifiers = ["Private :: Do Not Upload"]
 

dva-processing/src/dva_processing/engines/json_schema.py

@@ -2,19 +2,23 @@
 import json
 from typing import Any
 
-from jsonschema import ValidationError, validate as jsvalidate
+from jsonschema import ValidationError, FormatChecker, validate as jsvalidate
 
 from ..model import JSONSchemaValidationResult
 
+#initializing the global format checker
+global_format_checker = FormatChecker()
 
 def validate(data: Any, schema: str) -> JSONSchemaValidationResult:
     # TODO: Do we want to allow loading from arbitrary URL?
     # TODO: Can we eliminate this unescape?
     schema = json.loads(html.unescape(schema))
 
     try:
-        jsvalidate(instance=data, schema=schema)
+        jsvalidate(instance=data, schema=schema, format_checker=global_format_checker)
     except ValidationError as e:
-        return JSONSchemaValidationResult(success=False, errors=e)
+        # FIX 1: Wrap 'e' in str() so Pydantic receives a string, not an object
+        return JSONSchemaValidationResult(success=False, errors=str(e))
 
-    return JSONSchemaValidationResult(success=True, errors=None)
+    # FIX 2: Pass an empty string "" instead of None
+    return JSONSchemaValidationResult(success=True, errors="")