Add conditional HTTP requests and cache validators#300
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http_request never sent If-None-Match / If-Modified-Since nor read Cache-Control, so every poll re-downloaded an unchanged resource. Add store_validators, parse_cache_control, conditioned_call, is_fresh (by an explicit age), and is_not_modified so a flow can revalidate and honour 304 Not Modified. Wired through facade, executor (AC_parse_cache_control / AC_store_validators), MCP, and the Script Builder with a headless test batch and EN/Zh docs.
Up to standards ✅🟢 Issues
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| Metric | Results |
|---|---|
| Complexity | 42 |
| Duplication | 0 |
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What
http_requestnever sentIf-None-Match/If-Modified-Sincenor readCache-Control, so every poll re-downloaded an unchanged resource.store_validators(response)→{etag, last_modified, date, cache_control}.parse_cache_control(headers)→ directive dict (max-ageint, flagsTrue).conditioned_call(call, validators)— addsIf-None-Match/If-Modified-Sinceto abuild_calldict.is_fresh(validators, age_seconds)— explicit age, no wall clock;no-store/no-cachenever fresh.is_not_modified(response)— detects304.Completes the stdlib HTTP-semantics lane (problem+json, SSE, link header, multipart, content negotiation, cookie jar, conditional requests).
Layers
utils/http_conditional/(pure stdlib, zero PySide6).__all__.AC_parse_cache_control,AC_store_validators.ac_parse_cache_control,ac_store_validators(read-only).test/unit_test/headless/test_http_conditional_batch.py(9 tests).v92_features_doc.rst(EN + Zh) + toctrees + 3 README What's-new sections.Verification
pytest test/unit_test/headless/test_http_conditional_batch.py→ 9 passed.ruff check je_auto_control/clean; pylint 10.00/10; bandit clean; radon CC clean.