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fix: reject invalid base64 binary values #1816

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fix: reject invalid base64 binary values #1816

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3 changes: 3 additions & 0 deletions frictionless/fields/__spec__/test_string.py
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,9 @@
("binary", "dGVzdA==", "dGVzdA=="),
("binary", "", None),
("binary", "string", None),
("binary", "!!!!", None),
("binary", "@@@@", None),
("binary", "()()", None),
("binary", 0, None),
],
)
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2 changes: 1 addition & 1 deletion frictionless/fields/string.py
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Original file line number Diff line number Diff line change
Expand Up @@ -66,7 +66,7 @@ def value_reader(cell: Any):
if not isinstance(cell, str):
return None
try:
base64.b64decode(cell)
base64.b64decode(cell, validate=True)
except Exception:
return None
return cell
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