chore: pin to altcha v1 API after upstream v2 release - #48
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Signed-off-by: tdruez <tdruez@aboutcode.org>
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Aug 6, 2026
Upgrade the bundled JS widget from ALTCHA v2.3.0 to v3.2.1 and move the server side from the v1 Proof-of-Work API to the v2 one, raising the altcha requirement to >=2.1.0,<3.0.0. PR aboutcode-org#48 took the altcha v2 package while staying on the *_v1 compatibility functions; this replaces those with the real v2 API, so the widget and the library speak the same KDF-based Proof-of-Work. Challenges and payloads are not compatible across versions. `get_altcha_challenge()` now takes `algorithm` and `cost` in place of `max_number`, driven by the new ALTCHA_ALGORITHM and ALTCHA_COST settings, and `verify_solution()` returns a result object rather than a tuple. Replay protection keys the cache on the challenge signature, as the v3 payload no longer carries a challenge string. Widget side, the v3 options replace the v2 ones. `challengeurl` and `challengejson` are mapped to the unified `challenge` option with a DeprecationWarning; options the widget does not accept as an HTML attribute are collected into the JSON-encoded `configuration` attribute. Add an ALTCHA_STRICT_CSP setting that switches the widget template and the new form Media to the modular /dist_external build: the stylesheet is served as a separate file and the Proof-of-Work workers are loaded from the static files instead of a blob: URL, removing the need for `style-src 'unsafe-inline'` and `worker-src blob:`. The modular build registers no algorithm on its own, so a small altcha-workers.js module wires $altcha.algorithms to the bundled worker scripts. The new asset settings — ALTCHA_JS_STRICT_CSP_URL, ALTCHA_CSS_URL, ALTCHA_WORKERS_REGISTER_URL and ALTCHA_WORKERS_URL — go through the STATIC_URL resolution added in aboutcode-org#45. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01956qnAS7qztaS7tghEKDta
This was referenced Aug 6, 2026
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