{"abstract":"Match query-aware redirect rules against repeated decoded query fields: the decoded value match branch emits an incorrect decision.","category":"HTTP redirects","checks":9,"contract":"Match query-aware redirect rules against repeated decoded query fields. The explicit fixture inputs and outputs define a bounded offline policy; request identity must accompany the decision.","contract_signature":"request, pairs, key, required, case_sensitive, negate, require_all","evaluation_group":"s3-http-redirects-query-rule-matching","failed_approach":"The partial repair uses \"any(unquote(v).replace('+',' ')==required for k,v in pairs)\" and still fails an explicit boundary or control.","family":"s3-http-redirects-query-rule-matching-decoded-value-match","id":"FA-28901","implementations":{"attempt":{"sha256":"45d428ecd031c07dc3bbb7a39ad0456c91a5ebc88628bc7d6c0fdd3109cc38b2","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nfrom urllib.parse import urlsplit, unquote, quote\nimport posixpath\nimport re\nN = 1\nobservations = []\ndef solve(request, pairs, key, required, case_sensitive, negate, require_all):\n    return {'request': request, 'decision': [[v for k,v in pairs if k==key], [v for k,v in pairs if (k==key if case_sensitive else k.lower()==key.lower())], any(unquote(v).replace('+',' ')==required for k,v in pairs), any(k==key for k,v in pairs), bool([v for k,v in pairs if k==key]) and all(v==required for k,v in pairs if k==key), not any(v==required for k,v in pairs if k==key) if negate else any(v==required for k,v in pairs if k==key), any(v==required for k,v in pairs if k==key), sum(k==key for k,v in pairs), any(k==key and v==required for k,v in pairs), (bool(pairs) and all(v==required for k,v in pairs)) if require_all else any(v==required for k,v in pairs)]} \ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve('/requests/' + str(N) + '/0', [['q', 'a'], ['q', 'b']], 'q', 'b', True, False, False), {'request': '/requests/' + str(N) + '/0', 'decision': [['a', 'b'], ['a', 'b'], True, True, False, True, True, 2, True, True]})\ncheck('fixture 2', solve('/requests/' + str(N) + '/1', [['Q', 'A']], 'q', 'a', False, False, True), {'request': '/requests/' + str(N) + '/1', 'decision': [[], ['A'], False, False, False, False, False, 0, False, False]})\ncheck('fixture 3', solve('/requests/' + str(N) + '/2', [], 'q', '', True, True, False), {'request': '/requests/' + str(N) + '/2', 'decision': [[], [], False, False, False, True, False, 0, False, False]})\ncheck('fixture 4', solve('/requests/' + str(N) + '/3', [['q', ''], ['q', 'x']], 'q', '', True, False, True), {'request': '/requests/' + str(N) + '/3', 'decision': [['', 'x'], ['', 'x'], True, True, False, True, True, 2, True, False]})\ncheck('fixture 5', solve('/requests/' + str(N) + '/4', [['q', 'a'], ['q', 'a']], 'q', 'a', True, True, True), {'request': '/requests/' + str(N) + '/4', 'decision': [['a', 'a'], ['a', 'a'], True, True, True, False, True, 2, True, True]})\ncheck('fixture 6', solve('/requests/' + str(N) + '/5', [['q', 'a%20b']], 'q', 'a b', True, False, False), {'request': '/requests/' + str(N) + '/5', 'decision': [['a%20b'], ['a%20b'], True, True, False, False, False, 1, False, False]})\ncheck('fixture 7', solve('/requests/' + str(N) + '/6', [['Q', 'a']], 'q', 'a', True, False, False), {'request': '/requests/' + str(N) + '/6', 'decision': [[], [], False, False, False, False, False, 0, False, True]})\ncheck('fixture 8', solve('/requests/' + str(N) + '/7', [['q', '']], 'q', '', True, False, False), {'request': '/requests/' + str(N) + '/7', 'decision': [[''], [''], True, True, True, True, True, 1, True, True]})\ncheck('fixture 9', solve('/requests/' + str(N) + '/8', [['q', 'prefix']], 'q', 'pre', True, False, False), {'request': '/requests/' + str(N) + '/8', 'decision': [['prefix'], ['prefix'], False, True, False, False, False, 1, False, False]})\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"e602f85b7c0bdb3dd8ca272a304df6fef36d45752b4718bff162d7a13e484ee5","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nfrom urllib.parse import urlsplit, unquote, quote\nimport posixpath\nimport re\nN = 1\nobservations = []\ndef solve(request, pairs, key, required, case_sensitive, negate, require_all):\n    return {'request': request, 'decision': [[v for k,v in pairs if k==key], [v for k,v in pairs if (k==key if case_sensitive else k.lower()==key.lower())], any(v==required for k,v in pairs if k==key), any(k==key for k,v in pairs), bool([v for k,v in pairs if k==key]) and all(v==required for k,v in pairs if k==key), not any(v==required for k,v in pairs if k==key) if negate else any(v==required for k,v in pairs if k==key), any(v==required for k,v in pairs if k==key), sum(k==key for k,v in pairs), any(k==key and v==required for k,v in pairs), (bool(pairs) and all(v==required for k,v in pairs)) if require_all else any(v==required for k,v in pairs)]} \ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve('/requests/' + str(N) + '/0', [['q', 'a'], ['q', 'b']], 'q', 'b', True, False, False), {'request': '/requests/' + str(N) + '/0', 'decision': [['a', 'b'], ['a', 'b'], True, True, False, True, True, 2, True, True]})\ncheck('fixture 2', solve('/requests/' + str(N) + '/1', [['Q', 'A']], 'q', 'a', False, False, True), {'request': '/requests/' + str(N) + '/1', 'decision': [[], ['A'], False, False, False, False, False, 0, False, False]})\ncheck('fixture 3', solve('/requests/' + str(N) + '/2', [], 'q', '', True, True, False), {'request': '/requests/' + str(N) + '/2', 'decision': [[], [], False, False, False, True, False, 0, False, False]})\ncheck('fixture 4', solve('/requests/' + str(N) + '/3', [['q', ''], ['q', 'x']], 'q', '', True, False, True), {'request': '/requests/' + str(N) + '/3', 'decision': [['', 'x'], ['', 'x'], True, True, False, True, True, 2, True, False]})\ncheck('fixture 5', solve('/requests/' + str(N) + '/4', [['q', 'a'], ['q', 'a']], 'q', 'a', True, True, True), {'request': '/requests/' + str(N) + '/4', 'decision': [['a', 'a'], ['a', 'a'], True, True, True, False, True, 2, True, True]})\ncheck('fixture 6', solve('/requests/' + str(N) + '/5', [['q', 'a%20b']], 'q', 'a b', True, False, False), {'request': '/requests/' + str(N) + '/5', 'decision': [['a%20b'], ['a%20b'], True, True, False, False, False, 1, False, False]})\ncheck('fixture 7', solve('/requests/' + str(N) + '/6', [['Q', 'a']], 'q', 'a', True, False, False), {'request': '/requests/' + str(N) + '/6', 'decision': [[], [], False, False, False, False, False, 0, False, True]})\ncheck('fixture 8', solve('/requests/' + str(N) + '/7', [['q', '']], 'q', '', True, False, False), {'request': '/requests/' + str(N) + '/7', 'decision': [[''], [''], True, True, True, True, True, 1, True, True]})\ncheck('fixture 9', solve('/requests/' + str(N) + '/8', [['q', 'prefix']], 'q', 'pre', True, False, False), {'request': '/requests/' + str(N) + '/8', 'decision': [['prefix'], ['prefix'], False, True, False, False, False, 1, False, False]})\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"Stipulated offline redirect policy, not a complete HTTP, browser, URL, cache, or security implementation. Numbered variants vary request correlation identity. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"s3-http-redirects-query-rule-matching-decoded-value-match","generated_at":"2026-09-29T14:41:38.379435+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Models a redirect controller decision before following a target or exposing a redirect result.","root_cause":"The decoded-value-match decision uses 'any(v==required for k,v in pairs if k==key)'; this violates the stipulated controller policy.","sha256":"6cf7e99b0ea92847eadbea98a8a14c7fde3ed2ed5274c9fc34404b9cfbaa2d69","title":"Match query-aware redirect rules against repeated decoded query fields: decoded value match · case 01","variant":1,"variant_policy":"N changes request correlation identity. Policy boundary fixtures are reused; numbered variants are not independent examples.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":42.705,"exit_code":1,"observations":[{"actual":{"decision":[["a","b"],["a","b"],true,true,false,true,true,2,true,true],"request":"/requests/1/0"},"check":"fixture 1","expected":{"decision":[["a","b"],["a","b"],true,true,false,true,true,2,true,true],"request":"/requests/1/0"},"passed":true},{"actual":{"decision":[[],["A"],false,false,false,false,false,0,false,false],"request":"/requests/1/1"},"check":"fixture 2","expected":{"decision":[[],["A"],false,false,false,false,false,0,false,false],"request":"/requests/1/1"},"passed":true},{"actual":{"decision":[[],[],false,false,false,true,false,0,false,false],"request":"/requests/1/2"},"check":"fixture 3","expected":{"decision":[[],[],false,false,false,true,false,0,false,false],"request":"/requests/1/2"},"passed":true},{"actual":{"decision":[["","x"],["","x"],true,true,false,true,true,2,true,false],"request":"/requests/1/3"},"check":"fixture 4","expected":{"decision":[["","x"],["","x"],true,true,false,true,true,2,true,false],"request":"/requests/1/3"},"passed":true},{"actual":{"decision":[["a","a"],["a","a"],true,true,true,false,true,2,true,true],"request":"/requests/1/4"},"check":"fixture 5","expected":{"decision":[["a","a"],["a","a"],true,true,true,false,true,2,true,true],"request":"/requests/1/4"},"passed":true},{"actual":{"decision":[["a%20b"],["a%20b"],true,true,false,false,false,1,false,false],"request":"/requests/1/5"},"check":"fixture 6","expected":{"decision":[["a%20b"],["a%20b"],true,true,false,false,false,1,false,false],"request":"/requests/1/5"},"passed":true},{"actual":{"decision":[[],[],true,false,false,false,false,0,false,true],"request":"/requests/1/6"},"check":"fixture 7","expected":{"decision":[[],[],false,false,false,false,false,0,false,true],"request":"/requests/1/6"},"passed":false},{"actual":{"decision":[[""],[""],true,true,true,true,true,1,true,true],"request":"/requests/1/7"},"check":"fixture 8","expected":{"decision":[[""],[""],true,true,true,true,true,1,true,true],"request":"/requests/1/7"},"passed":true},{"actual":{"decision":[["prefix"],["prefix"],false,true,false,false,false,1,false,false],"request":"/requests/1/8"},"check":"fixture 9","expected":{"decision":[["prefix"],["prefix"],false,true,false,false,false,1,false,false],"request":"/requests/1/8"},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": {\"request\": \"/requests/1/0\", \"decision\": [[\"a\", \"b\"], [\"a\", \"b\"], true, true, false, true, true, 2, true, true]}, \"expected\": {\"request\": \"/requests/1/0\", \"decision\": [[\"a\", \"b\"], [\"a\", \"b\"], true, true, false, true, true, 2, true, true]}, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": {\"request\": \"/requests/1/1\", \"decision\": [[], [\"A\"], false, false, false, false, false, 0, false, false]}, \"expected\": {\"request\": \"/requests/1/1\", \"decision\": [[], [\"A\"], false, false, false, false, false, 0, false, false]}, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": {\"request\": \"/requests/1/2\", \"decision\": [[], [], false, false, false, true, false, 0, false, false]}, \"expected\": {\"request\": \"/requests/1/2\", \"decision\": [[], [], false, false, false, true, false, 0, false, false]}, \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": {\"request\": \"/requests/1/3\", \"decision\": [[\"\", \"x\"], [\"\", \"x\"], true, true, false, true, true, 2, true, false]}, \"expected\": {\"request\": \"/requests/1/3\", \"decision\": [[\"\", \"x\"], [\"\", \"x\"], true, true, false, true, true, 2, true, false]}, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": {\"request\": \"/requests/1/4\", \"decision\": [[\"a\", \"a\"], [\"a\", \"a\"], true, true, true, false, true, 2, true, true]}, \"expected\": {\"request\": \"/requests/1/4\", \"decision\": [[\"a\", \"a\"], [\"a\", \"a\"], true, true, true, false, true, 2, true, true]}, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": {\"request\": \"/requests/1/5\", \"decision\": [[\"a%20b\"], [\"a%20b\"], true, true, false, false, false, 1, false, false]}, \"expected\": {\"request\": \"/requests/1/5\", \"decision\": [[\"a%20b\"], [\"a%20b\"], true, true, false, false, false, 1, false, false]}, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": {\"request\": \"/requests/1/6\", \"decision\": [[], [], true, false, false, false, false, 0, false, true]}, \"expected\": {\"request\": \"/requests/1/6\", \"decision\": [[], [], false, false, false, false, false, 0, false, true]}, \"passed\": false}, {\"check\": \"fixture 8\", \"actual\": {\"request\": \"/requests/1/7\", \"decision\": [[\"\"], [\"\"], true, true, true, true, true, 1, true, true]}, \"expected\": {\"request\": \"/requests/1/7\", \"decision\": [[\"\"], [\"\"], true, true, true, true, true, 1, true, true]}, \"passed\": true}, {\"check\": \"fixture 9\", \"actual\": {\"request\": \"/requests/1/8\", \"decision\": [[\"prefix\"], [\"prefix\"], false, true, false, false, false, 1, false, false]}, \"expected\": {\"request\": \"/requests/1/8\", \"decision\": [[\"prefix\"], [\"prefix\"], false, true, false, false, false, 1, false, false]}, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":42.06,"exit_code":1,"observations":[{"actual":{"decision":[["a","b"],["a","b"],true,true,false,true,true,2,true,true],"request":"/requests/1/0"},"check":"fixture 1","expected":{"decision":[["a","b"],["a","b"],true,true,false,true,true,2,true,true],"request":"/requests/1/0"},"passed":true},{"actual":{"decision":[[],["A"],false,false,false,false,false,0,false,false],"request":"/requests/1/1"},"check":"fixture 2","expected":{"decision":[[],["A"],false,false,false,false,false,0,false,false],"request":"/requests/1/1"},"passed":true},{"actual":{"decision":[[],[],false,false,false,true,false,0,false,false],"request":"/requests/1/2"},"check":"fixture 3","expected":{"decision":[[],[],false,false,false,true,false,0,false,false],"request":"/requests/1/2"},"passed":true},{"actual":{"decision":[["","x"],["","x"],true,true,false,true,true,2,true,false],"request":"/requests/1/3"},"check":"fixture 4","expected":{"decision":[["","x"],["","x"],true,true,false,true,true,2,true,false],"request":"/requests/1/3"},"passed":true},{"actual":{"decision":[["a","a"],["a","a"],true,true,true,false,true,2,true,true],"request":"/requests/1/4"},"check":"fixture 5","expected":{"decision":[["a","a"],["a","a"],true,true,true,false,true,2,true,true],"request":"/requests/1/4"},"passed":true},{"actual":{"decision":[["a%20b"],["a%20b"],false,true,false,false,false,1,false,false],"request":"/requests/1/5"},"check":"fixture 6","expected":{"decision":[["a%20b"],["a%20b"],true,true,false,false,false,1,false,false],"request":"/requests/1/5"},"passed":false},{"actual":{"decision":[[],[],false,false,false,false,false,0,false,true],"request":"/requests/1/6"},"check":"fixture 7","expected":{"decision":[[],[],false,false,false,false,false,0,false,true],"request":"/requests/1/6"},"passed":true},{"actual":{"decision":[[""],[""],true,true,true,true,true,1,true,true],"request":"/requests/1/7"},"check":"fixture 8","expected":{"decision":[[""],[""],true,true,true,true,true,1,true,true],"request":"/requests/1/7"},"passed":true},{"actual":{"decision":[["prefix"],["prefix"],false,true,false,false,false,1,false,false],"request":"/requests/1/8"},"check":"fixture 9","expected":{"decision":[["prefix"],["prefix"],false,true,false,false,false,1,false,false],"request":"/requests/1/8"},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": {\"request\": \"/requests/1/0\", \"decision\": [[\"a\", \"b\"], [\"a\", \"b\"], true, true, false, true, true, 2, true, true]}, \"expected\": {\"request\": \"/requests/1/0\", \"decision\": [[\"a\", \"b\"], [\"a\", \"b\"], true, true, false, true, true, 2, true, true]}, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": {\"request\": \"/requests/1/1\", \"decision\": [[], [\"A\"], false, false, false, false, false, 0, false, false]}, \"expected\": {\"request\": \"/requests/1/1\", \"decision\": [[], [\"A\"], false, false, false, false, false, 0, false, false]}, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": {\"request\": \"/requests/1/2\", \"decision\": [[], [], false, false, false, true, false, 0, false, false]}, \"expected\": {\"request\": \"/requests/1/2\", \"decision\": [[], [], false, false, false, true, false, 0, false, false]}, \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": {\"request\": \"/requests/1/3\", \"decision\": [[\"\", \"x\"], [\"\", \"x\"], true, true, false, true, true, 2, true, false]}, \"expected\": {\"request\": \"/requests/1/3\", \"decision\": [[\"\", \"x\"], [\"\", \"x\"], true, true, false, true, true, 2, true, false]}, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": {\"request\": \"/requests/1/4\", \"decision\": [[\"a\", \"a\"], [\"a\", \"a\"], true, true, true, false, true, 2, true, true]}, \"expected\": {\"request\": \"/requests/1/4\", \"decision\": [[\"a\", \"a\"], [\"a\", \"a\"], true, true, true, false, true, 2, true, true]}, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": {\"request\": \"/requests/1/5\", \"decision\": [[\"a%20b\"], [\"a%20b\"], false, true, false, false, false, 1, false, false]}, \"expected\": {\"request\": \"/requests/1/5\", \"decision\": [[\"a%20b\"], [\"a%20b\"], true, true, false, false, false, 1, false, false]}, \"passed\": false}, {\"check\": \"fixture 7\", \"actual\": {\"request\": \"/requests/1/6\", \"decision\": [[], [], false, false, false, false, false, 0, false, true]}, \"expected\": {\"request\": \"/requests/1/6\", \"decision\": [[], [], false, false, false, false, false, 0, false, true]}, \"passed\": true}, {\"check\": \"fixture 8\", \"actual\": {\"request\": \"/requests/1/7\", \"decision\": [[\"\"], [\"\"], true, true, true, true, true, 1, true, true]}, \"expected\": {\"request\": \"/requests/1/7\", \"decision\": [[\"\"], [\"\"], true, true, true, true, true, 1, true, true]}, \"passed\": true}, {\"check\": \"fixture 9\", \"actual\": {\"request\": \"/requests/1/8\", \"decision\": [[\"prefix\"], [\"prefix\"], false, true, false, false, false, 1, false, false]}, \"expected\": {\"request\": \"/requests/1/8\", \"decision\": [[\"prefix\"], [\"prefix\"], false, true, false, false, false, 1, false, false]}, \"passed\": true}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}