thanhnvandClaude Opus 4.8
d695a598ee
- SEC-12: drift-detect adds semantic invariants — negation-flip detection (a dropped "not" now FAILS despite high char-similarity) + env must-keep patterns. - SEC-29 (X-05): governance-check audit write fails CLOSED — an unwritable audit log denies the action and empties the output (no unaudited output). - SEC-30 (X-06): approval-verify records a one-time-use nonce (sha of token/sig) and rejects replays (enforced mode / when a nonce ledger is set); dev unchanged. - SEC-15 (low): typosquat distance<=2 with the levenshtein length-sentinel bug fixed (no false positives); tool-exec fails closed with no timeout backend in enforced mode; validate-tool-input now validates nested objects/arrays recursively. Verify: new SEC suites all green via gate, run-casan4 0-FAIL, adversarial 44/44, track-c 29/0, h5-approval 12/0, no regressions. Plan-16 P2 remaining: infra-gated only (SEC-14/22/23/24/25/26). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
72 lines
2.6 KiB
Bash
Executable File
72 lines
2.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# CASAN H2 tool-input validation.
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# Validates a tool-call input JSON against a JSON-Schema-style spec
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# (required fields + property types + additionalProperties:false).
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# Stdlib-only — supports type, required, properties, additionalProperties,
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# enum. NOT a full JSON Schema engine (no $ref, no nested object recursion
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# beyond one level); scoped deliberately and labeled as such.
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#
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# Usage: validate-tool-input.sh <schema.json> <input.json>
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# Exit: 0 valid, 2 invalid, 64 usage error.
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SCHEMA="${1:-}"
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INPUT="${2:-}"
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if [[ -z "$SCHEMA" || -z "$INPUT" || ! -f "$SCHEMA" || ! -f "$INPUT" ]]; then
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echo "Usage: validate-tool-input.sh <schema.json> <input.json>" >&2
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exit 64
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fi
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python - "$SCHEMA" "$INPUT" <<'PY'
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import json, sys
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schema = json.load(open(sys.argv[1], encoding="utf-8"))
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data = json.load(open(sys.argv[2], encoding="utf-8"))
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TYPES = {
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"string": str, "integer": int, "number": (int, float),
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"boolean": bool, "object": dict, "array": list,
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}
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errors = []
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# SEC-15: validate RECURSIVELY. Previously only the top level was checked, so a
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# nested object could smuggle wrong types / unexpected fields past the gate.
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def validate(schema, data, path):
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expected = schema.get("type")
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py = TYPES.get(expected)
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if py and (not isinstance(data, py)
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or (expected in ("integer", "number") and isinstance(data, bool))):
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errors.append(f"{path or 'root'}: expected {expected}")
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return
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if "enum" in schema and data not in schema["enum"]:
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errors.append(f"{path or 'root'}: not in enum {schema['enum']}")
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if expected == "object" and isinstance(data, dict):
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props = schema.get("properties", {})
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for field in schema.get("required", []):
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if field not in data:
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errors.append(f"{path or 'root'}: missing required field: {field}")
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if schema.get("additionalProperties") is False:
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for key in data:
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if key not in props:
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errors.append(f"{path or 'root'}: unexpected field: {key}")
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for key, spec in props.items():
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if key in data:
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validate(spec, data[key], f"{path}.{key}" if path else key)
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elif expected == "array" and isinstance(data, list):
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item_spec = schema.get("items")
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if isinstance(item_spec, dict):
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for i, item in enumerate(data):
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validate(item_spec, item, f"{path}[{i}]")
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validate(schema, data, "")
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if errors:
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sys.stderr.write("TOOL_INPUT_INVALID " + "; ".join(errors) + "\n")
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raise SystemExit(2)
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print("TOOL_INPUT_VALID")
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PY
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