37 lines
1.8 KiB
Markdown
37 lines
1.8 KiB
Markdown
# Evidence Task 2 Report
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## Status
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Implemented filesystem and explicit-manifest HTTP Evidence source adapters, typed source
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configuration with legacy compatibility, and factory construction.
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## Delivered behavior
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- Filesystem discovery is deterministic and rooted at a strict canonical directory.
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- Symlink/path escapes are rejected before content is exposed.
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- Discovery hashing and acquisition reads enforce a configurable byte limit.
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- Filesystem fingerprints are content SHA-256 values; stable IDs derive from relative paths.
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- HTTP accepts only explicit `http`/`https` manifest entries and keeps transport URLs private.
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- HTTP provenance strips query strings/fragments, while config and adapter representations hide
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signed or secret-bearing transport URLs.
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- HTTP acquisition uses separate connect/read timeouts, streaming byte limits, bounded redirects,
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private redirect rejection, and safe transient/permanent error classification.
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- HTTP fingerprints prefer a deterministic ETag digest, then Last-Modified, then content SHA-256.
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- `build_evidence_sources(cfg)` supports both typed `evidence.sources` entries and the legacy
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`source_root` plus `evidence_dir` filesystem configuration.
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## TDD and verification
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- RED: focused tests initially failed during collection because the adapter package did not exist.
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- GREEN: `15 passed` for filesystem, HTTP, and resource-config tests.
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- Full harness: `548 passed, 5 deselected`.
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- Changed-file Ruff: clean.
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- Repository-wide Ruff remains non-clean due to 34 pre-existing findings in unrelated test files;
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no unrelated lint files were modified.
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## Notes
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The approved `SourceObject` namespace grammar does not permit raw quoted ETags such as
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`etag:"abc"`. The adapter therefore uses `etag:<sha256-of-opaque-etag>`: it preserves ETag-based
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change identity without weakening the canonical contract or exposing validator contents.
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