AskaEth
378faf212e
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feat(browser): 取正文能力 + web-fetch 浏览器降级档接线(解封 Z5/B5)
Z5(c2e413e)把 web-fetch 的降级链与注入点做完了,但「取正文」入口缺失 ⇒
组合根拿不到 BodyRenderer、这一档实际关着(当时如实登记)。本片补上:
- internal/capability/browser/render.go:新增 Manager.RenderText(ctx,url)
(导出的进程内能力)—— 先过 GuardURL(与全仓同一份 SSRF 判定源)、复用
withSession/session、等 readyState=complete 之后才取 body.innerText;
渲染失败 = 分类错误,渲染成功但正文为空 = 空串+无错(不冒充成功/失败)。
- cmd/cyrene/wire_body_fallback.go:适配器 + 挂载点,把 Manager 适配成
io.BodyRenderer 并用 WithBrowserFallback 挂上;web_runtime 里把浏览器
接线**上移到 io 工具集之前**(顺序颠倒会静默关死这一档)。
- plugins/tools/browser/tool.go:新增 Tool.Manager(),供组合根取驱动句柄。
开关口径(裁决,依据 design/28 §1 M5 / §7 判据 4 / §8 B5):**有可用浏览器
就挂,没有就不挂**,不新增开关 ——
① 设计把 M5/B5 写成要落地生效的降级档,不是永远关着的空壳;
② 设计 §8 的可调项清单里没有这条降级档的开关,`.env` 已冻结 ⇒ 自造开关属
「自行发挥」;
③ io 库层「不传 = 默认关」的语义一字未改,本片只把组合根从「永远关」改成
「没来源就关」,并留带来源的 WARN(reason=no-usable-browser)。
⚠️ 若日后要「有浏览器也需显式开启」,得先给设计定开关落点,代码侧一行改回。
验收(主会话复跑 + 亲自变异):go build ./... + 三包 vet 绿;browser/io 两包
测试绿(cmd/cyrene 由子代理跑过全绿);我用 -overlay 把 GuardURL 的判定对象
换成常量 URL(绕过被拒目标)⇒ TestManager_RenderTextBlockedURLRejectedBeforeAnyProcess
变红,证明判定确实**在起任何进程之前**跑。
⚠️ 生产端到端未验:按红线没重启后端、没起真 Chrome ⇒「真页面 → browser 取到
正文」这条链只有假 CDP + 组合根接线级证据。
⚠️ design/28 有 6 处表述与代码现状冲突(归属 web-fetch vs web-search、extract
动作归属、B5 排期、状态过期等),已登记待我同步文档。
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