chore: add talisman env var to config (#24774)

superset/config.py

@@ -54,6 +54,7 @@
 from superset.stats_logger import DummyStatsLogger
 from superset.superset_typing import CacheConfig
 from superset.tasks.types import ExecutorType
+from superset.utils import core as utils
 from superset.utils.core import is_test, NO_TIME_RANGE, parse_boolean_string
 from superset.utils.encrypt import SQLAlchemyUtilsAdapter
 from superset.utils.log import DBEventLogger
@@ -1383,7 +1384,8 @@ def EMAIL_HEADER_MUTATOR(  # pylint: disable=invalid-name,unused-argument
 CONTENT_SECURITY_POLICY_WARNING = True
 
 # Do you want Talisman enabled?
-TALISMAN_ENABLED = True
+TALISMAN_ENABLED = utils.cast_to_boolean(os.environ.get("TALISMAN_ENABLED", True))
+
 # If you want Talisman, how do you want it configured??
 TALISMAN_CONFIG = {
     "content_security_policy": {

superset/utils/core.py

@@ -439,6 +439,8 @@ def cast_to_boolean(value: Any) -> bool | None:
     """
     if value is None:
         return None
+    if isinstance(value, bool):
+        return value
     if isinstance(value, (int, float)):
         return value != 0
     if isinstance(value, str):

tests/unit_tests/utils/test_core.py

@@ -20,6 +20,7 @@
 import pytest
 
 from superset.utils.core import (
+    cast_to_boolean,
     is_test,
     parse_boolean_string,
     QueryObjectFilterClause,
@@ -132,3 +133,41 @@ def test_is_test():
 )
 def test_parse_boolean_string(test_input: Optional[str], expected: bool):
     assert parse_boolean_string(test_input) == expected
+
+
+def test_int_values():
+    assert cast_to_boolean(1) is True
+    assert cast_to_boolean(0) is False
+    assert cast_to_boolean(-1) is True
+    assert cast_to_boolean(42) is True
+    assert cast_to_boolean(0) is False
+
+
+def test_float_values():
+    assert cast_to_boolean(0.5) is True
+    assert cast_to_boolean(3.14) is True
+    assert cast_to_boolean(-2.71) is True
+    assert cast_to_boolean(0.0) is False
+
+
+def test_string_values():
+    assert cast_to_boolean("true") is True
+    assert cast_to_boolean("TruE") is True
+    assert cast_to_boolean("false") is False
+    assert cast_to_boolean("FaLsE") is False
+    assert cast_to_boolean("") is False
+
+
+def test_none_value():
+    assert cast_to_boolean(None) is None
+
+
+def test_boolean_values():
+    assert cast_to_boolean(True) is True
+    assert cast_to_boolean(False) is False
+
+
+def test_other_values():
+    assert cast_to_boolean([]) is False
+    assert cast_to_boolean({}) is False
+    assert cast_to_boolean(object()) is False