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ticket: record backend resource fetch review fixes

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Keisuke Hirata 2026-07-08 20:45:52 +09:00
parent a0ef9a9f82
commit 237c75448c
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.yoi/tickets/00001KX0G06VA/item.md
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title: 'Add Runtime-to-Backend resource fetch REST API' title: 'Add Runtime-to-Backend resource fetch REST API'
state: 'inprogress' state: 'inprogress'
created_at: '2026-07-08T09:12:33Z' created_at: '2026-07-08T09:12:33Z'
updated_at: '2026-07-08T11:27:23Z' updated_at: '2026-07-08T11:45:42Z'
assignee: null assignee: null
queued_by: 'workspace-panel' queued_by: 'workspace-panel'
queued_at: '2026-07-08T10:04:10Z' queued_at: '2026-07-08T10:04:10Z'

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.yoi/tickets/00001KX0G06VA/thread.md
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@ -254,3 +254,31 @@ Non-blocking follow-ups:
- broader resource kind 追加前に、stored issued handle policy fields の完全比較、または signed/opaque handle representation を検討するとよい。 - broader resource kind 追加前に、stored issued handle policy fields の完全比較、または signed/opaque handle representation を検討するとよい。
--- ---
<!-- event: implementation_report author: orchestrator at: 2026-07-08T11:45:42Z -->
## Implementation report
Review-fix implementation report:
- Coder Pod completed requested changes and committed follow-up `e716ae44 fix: harden backend resource handles` on branch `work/00001KX0G06VA-resource-fetch-api`.
- Worktree status was clean after commit.
- Fix summary:
- Backend broker now treats broker-stored issued handle as authority。
- Request handle must match stored issued handle; expiry and `max_bytes` validation use stored policy fields, not mutable Runtime-provided fields。
- Tampered scope/policy fields fail closed。
- Runtime archive cache no longer bypasses Backend authorization: Runtime calls `BackendResourceClient` and verifies response before reusing digest-cached archive。
- Expired/unauthorized handles now block cached reuse。
- Added focused security-contract tests for expiry extension/expired handle rejection, worker mismatch, policy tampering, REST missing-resource diagnostic, Runtime digest mismatch, oversized response despite `max_bytes` tampering, and remote HTTP path using the same Backend contract as direct broker path。
- Orchestrator reran validation in the implementation worktree:
- `git diff --check`: pass
- `cargo test -p worker-runtime --features ws-server,fs-store`: pass（45 lib tests + 5 main tests + doc tests）
- `cargo test -p yoi-workspace-server`: pass（77 lib tests + 2 main tests）
- `cargo check -p yoi`: pass
- `cd web/workspace && deno task check`: pass（0 errors / 0 warnings）
- `cd web/workspace && deno task test`: pass（17 tests）
- `yoi ticket doctor`: ok
- `nix build .#yoi --no-link`: pass
- Requesting follow-up external review against `57e96d3b..e716ae44` and full combined implementation。
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