Remove support for schemas that are loaded from a URL (breaking)

CHANGELOG.md

@@ -10,6 +10,7 @@ All notable changes to the Zowe Client Python SDK will be documented in this fil
 
 ### Bug Fixes
 
+- **Breaking**: Removed support for loading a JSON schema from a remote `http(s)://` URL via the `$schema` config property. Local schema files are still supported. [#412](https://github.com/zowe/zowe-client-python-sdk/pull/412)
 - Redacted request headers and restricted log directory/file to owner-only access. [#404](https://github.com/zowe/zowe-client-python-sdk/pull/404)
 - Fixed `Jobs.get_job_output_as_files` writing to a directory it never created, and made job output paths stay within the target directory. [#403](https://github.com/zowe/zowe-client-python-sdk/pull/403)
 - Updated the `pyo3` dependency of the Secrets SDK for technical currency. [#399](https://github.com/zowe/zowe-client-python-sdk/pull/399)

src/core/zowe/core_for_zowe_sdk/config_file.py

@@ -19,7 +19,6 @@
 from typing import Any, NamedTuple, Optional, Union
 
 import json5
-import requests
 
 from .credential_manager import CredentialManager
 from .custom_warnings import ProfileNotFoundWarning, ProfileParsingWarning
@@ -180,15 +179,11 @@ def schema_list(self, cwd: Optional[str] = None) -> list[dict[str, Any]]:
         schema_json: dict[str, Any] = {}
 
         if schema.startswith(("https://", "http://")):
-            try:
-                response = requests.get(schema)
-                response.raise_for_status()  # Ensure it's a valid response
-                schema_json = response.json()
-            except requests.RequestException as e:
-                if not self.__suppress_config_file_warnings:
-                    warnings.warn(f"Invalid schema request: {e}")
-                    self.__logger.warning(f"Invalid schema request: {e}")
-                return []
+            # remote schema loading is not supported
+            if not self.__suppress_config_file_warnings:
+                warnings.warn(f"Loading a JSON schema from a remote URL is not supported: {schema}")
+                self.__logger.warning(f"Loading a JSON schema from a remote URL is not supported: {schema}")
+            return []
 
         elif schema.startswith("file://") or os.path.isfile(schema):
             try:

src/core/zowe/core_for_zowe_sdk/validators.py

@@ -14,7 +14,6 @@
 from typing import Union, Any
 
 import json5
-import requests
 from jsonschema import validate
 
 
@@ -30,10 +29,18 @@ def validate_config_json(path_config_json: Union[str, dict[str, Any]], path_sche
         Absolute path to zowe.schema.json
     cwd: str
         Path of the current working directory
+
+    Raises
+    ------
+    ValueError
+        When path_schema_json is a remote URL, which is not supported
     """
-    # checks if the path_schema_json point to an internet URI and download the schema using the URI
+    # remote ($schema pointing to an http(s):// URL) schema loading is not supported; only local files may be used
     if path_schema_json.startswith("https://") or path_schema_json.startswith("http://"):
-        schema_json = requests.get(path_schema_json).json()
+        raise ValueError(
+            f"Loading a JSON schema from a remote URL is not supported: {path_schema_json}. "
+            "Use a local file path for the $schema property instead."
+        )
 
     # checks if the path_schema_json is a file
     elif os.path.isfile(path_schema_json) or path_schema_json.startswith("file://"):

tests/unit/core/test_config.py

@@ -1,5 +1,6 @@
 import importlib.util
 import os
+from unittest import mock
 
 import json5
 from jsonschema import ValidationError, validate
@@ -136,6 +137,18 @@ def test_validate_config_json_with_block_comments(self):
         loaded_schema = json5.load(open(commented_schema_path, encoding="utf-8"))
 
         expected = validate(loaded_config, loaded_schema)
-        result = validate_config_json(commented_config_path, commented_schema_path, cwd=os.path.dirname(commented_config_path))
+        result = validate_config_json(
+            commented_config_path, commented_schema_path, cwd=os.path.dirname(commented_config_path)
+        )
 
         self.assertEqual(result, expected)
+
+    def test_validate_config_json_rejects_remote_schema(self):
+        """Test validate_config_json rejects http(s):// schema URLs without making a network request."""
+        with mock.patch("requests.get") as mock_get:
+            with self.assertRaises(ValueError):
+                validate_config_json(self.original_file_path, "https://example.com/zowe.schema.json", cwd=FIXTURES_PATH)
+            with self.assertRaises(ValueError):
+                validate_config_json(self.original_file_path, "http://example.com/zowe.schema.json", cwd=FIXTURES_PATH)
+
+        mock_get.assert_not_called()

tests/unit/core/test_profile_manager.py

@@ -296,6 +296,19 @@ def test_validate_schema_logger(self, get_pass_func, mock_logger_warning: mock.M
             config_file.validate_schema()
         self.assertEqual(mock_logger_warning.call_args[0][0], "Could not find $schema property")
 
+    def test_schema_list_rejects_remote_schema(self):
+        """Test that schema_list does not fetch a remote schema URL and returns an empty list instead."""
+        with mock.patch("requests.get") as mock_get:
+            config_file = ConfigFile(
+                name="zowe_abcd", type="User Config", schema_property="https://example.com/zowe.schema.json"
+            )
+            config_file.suppress_config_warnings(False)
+            with self.assertWarns(UserWarning):
+                result = config_file.schema_list()
+
+        mock_get.assert_not_called()
+        self.assertEqual(result, [])
+
     @mock.patch("zowe.secrets_for_zowe_sdk.keyring.get_password", side_effect=keyring_get_password_exception)
     def test_secure_props_loading_warning(self, get_pass_func):
         """