remove RefResolver

Author: jonhealy1

CHANGELOG.md

@@ -10,12 +10,13 @@ The format is (loosely) based on [Keep a Changelog](http://keepachangelog.com/)
 
 ### Added
 
-- Docstrings https://github.com/stac-utils/stac-validator/pull/224
+- Docstrings ([#224](https://github.com/stac-utils/stac-validator/pull/224))
 
 ### Changed 
 
 - Development dependencies removed from runtime dependency list
   ([#228](https://github.com/stac-utils/stac-check/pull/109))
+- Remove jsonschema RefResolver ([#228](https://github.com/stac-utils/stac-check/pull/109))
 
 ## [v3.3.1] - 2022-12-16
 

stac_validator/validate.py

@@ -6,7 +6,7 @@
 
 import click  # type: ignore
 import jsonschema  # type: ignore
-from jsonschema import RefResolver
+from jsonschema.validators import validator_for
 from requests import exceptions  # type: ignore
 
 from .utilities import (
@@ -216,12 +216,13 @@ def custom_validator(self) -> None:
             jsonschema.validate(self.stac_content, schema)
         # in case the path to a json schema is local
         elif os.path.exists(self.schema):
-            schema = fetch_and_parse_schema(self.schema)
-            custom_abspath = os.path.abspath(self.schema)
-            custom_dir = os.path.dirname(custom_abspath).replace("\\", "/")
-            custom_uri = f"file:///{custom_dir}/"
-            resolver = RefResolver(custom_uri, self.schema)
-            jsonschema.validate(self.stac_content, schema, resolver=resolver)
+            schema_dict = fetch_and_parse_schema(self.schema)
+            # determine the appropriate validator class for the schema
+            ValidatorClass = validator_for(schema_dict)
+            validator = ValidatorClass(schema_dict)
+            # validate the content
+            validator.validate(self.stac_content)
+
         # deal with a relative path in the schema
         else:
             file_directory = os.path.dirname(os.path.abspath(str(self.stac_file)))