feat(fuzz): add fuzz harnesses for jwt, secrets and yaml parsing#340
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feat(fuzz): add fuzz harnesses for jwt, secrets and yaml parsing#340TBX3D wants to merge 2 commits into
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split the byte-parsing and validation core out of the file-reading wrapper so module definitions can be parsed from memory. behavior is unchanged: ParseYAMLModule reads the file then delegates.
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## main #340 +/- ##
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cover the untrusted-input parsers that had no fuzz coverage: jwt analysis and segment decode, js secret scanning, yaml module parsing, openapi spec parsing, html title extraction and js endpoint extraction. the secrets, openapi and endpoint harnesses assert invariants (match is a substring of input, ok implies non-nil spec, results non-empty and sorted); the rest are crash-only.
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adds 7 fuzz targets across the parsers and extractors that read untrusted
<title> extraction from an HTTP body. all corpora are clean after a local run (no crashers); each target asserts its own invariant beyond "must not panic" where one exists (a reported secret match must be a verbatim substring of the input, extracted endpoints must be sorted and deduped).input directly: YAML module definitions, JWT analysis and segment
decoding, endpoint/secret extraction from JS, OpenAPI spec parsing, and
the YAML fuzz target needed parseYAMLModuleBytes pulled out of
ParseYAMLModule so module bytes can be fuzzed without a temp file; the
path-based function now just wraps it, no behavior change.