feat(curl): 自研 curl bash 工具 —— 出站自然化 + 证据一等公民 - #110
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Reimplement curl as an in-process aiscan bash command (shadowing the system binary) so HTTP probing is evidence-first and does not announce itself as automated tooling. - curl-shaped flag surface: -X/-H/-d(+--data-raw/binary,@file)/-G/-b/-c/ -L(--max-redirs)/-A/-e/-u/-o/-i/-s/-S/-w/-v/-k/--connect-timeout/--max-time; unsupported flags are rejected, never silently ignored. - routes through the runner MITM hub read from execution.Env (ALL_PROXY carries the tool-call id; CURL_CA_BUNDLE trusts intercepted HTTPS), so flows attribute by tool_id and are captured as http.exchange evidence. - browser-shaped User-Agent + header set (Chrome) applied only where the caller did not set them; -A/-H always win. - cookie round-trip (-b/-c) in Netscape format; stateless per-call execution to stay safe under concurrent invocations. Registered in the aiscan CLI and runner binaries; 22 unit tests cover the parser and the client against httptest. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
One model for one request/response pair: flat ordered header Pairs in memory, the Flow proto as its wire view, and the http.exchange.v1 flow element as its persisted JSON (headers as name→values map, byte compatible). Consumers that mirrored the flow shape on both sides of the wire can now alias this type instead. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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背景
Issue: chainreactors/cairn-platform#84。
Runner 出站流量"自报家门"（系统 curl 的
curl/xUA、缺浏览器头），一眼是自动化工具。本 PR 用 Go 重写一个curl工具（commands.Command，名字就叫curl，shadow 系统 curl，用户/模型无感），把出站规整成贴近真实浏览器，并作为证据一等公民的受控 HTTP 主路径，替代 cairn 侧自研的http_request（其移除 + 提示词迁移在 cairn 侧后续 PR）。改动
新增
tools/curl/：parse.go— 手写 curl flag 解析：短 flag 捆绑（-sSL）、--k=v/--k v、-d @file、-H "Name:"（删默认头）/"Name;"（空值）。未识别 flag 明确报错，不静默忽略、不回退系统 curl。client.go— 从execution.Env读 hub 代理（ALL_PROXY带 tool-call id）+CURL_CA_BUNDLE（信任被拦截的 HTTPS）；自建 RootCAs；-L+--max-redirs重定向；-G原样拼 query；-i/-o/-w；浏览器 UA + 头集合仅补缺（-A/-H优先）。cookies.go—-b/-cNetscape cookie 往返。curl.go—Command{toolargs.Base}+Run；每调用无可变状态，并发安全。register.go—capability.Register+RegisterFactory。skills/aiscan/okf/easm/curl.md— 工具 playbook。接线：
cmd/aiscan/imports.go+cmd/runner/main.goblank-import。可观测性
curl 出站经 hub →
aop/traffic按tool_id捕获 → runner 侧规整为http.exchange.v1证据（脱敏复用）。curl 本身不建证据通道，复用现有机制。支持的 flag（v1）
-X -H -d --data-raw --data-binary -G -b -c -L --max-redirs -A -e -u -o -i -s -S -w -v -k --connect-timeout --max-time --url推迟 v1.1：
-F（multipart）、--data-urlencode、-x（未识别即报错；这些走真 shell 时仍经 env→hub 捕获，证据不丢）。测试
go build ./tools/curl、go vet ./tools/curl✅go test ./tools/curl— 22 单测（parser + httptest 验证方法/体/默认头/覆盖/重定向/cookie/basic-auth）✅go test ./tools（注册）✅go build ./cmd/aiscan ./cmd/runner✅🤖 Generated with Claude Code