229 lines
7.4 KiB
Markdown
229 lines
7.4 KiB
Markdown
# Async Browser Script 支持实现计划
|
||
|
||
> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
|
||
|
||
**Goal:** 修改 `build_eval_js` 函数支持异步脚本，解决 Promise 被 JSON.stringify 序列化为 `{}` 的问题。
|
||
|
||
**Architecture:** 将 `build_eval_js` 生成的 JavaScript 代码从同步 IIFE 改为 async IIFE，用 await 等待脚本执行结果，并检测 Promise-like 对象进行二次等待。
|
||
|
||
**Tech Stack:** Rust, JavaScript (生成代码)
|
||
|
||
---
|
||
|
||
## 文件结构
|
||
|
||
| 文件 | 操作 | 说明 |
|
||
|------|------|------|
|
||
| `src/browser/callback_backend.rs` | 修改 | 修改 `build_eval_js` 函数 |
|
||
| `tests/browser_script_skill_tool_test.rs` | 新增测试 | 添加异步脚本测试用例 |
|
||
|
||
---
|
||
|
||
### Task 1: 修改 build_eval_js 支持异步脚本
|
||
|
||
**Files:**
|
||
- Modify: `src/browser/callback_backend.rs:433-447`
|
||
|
||
**当前代码:**
|
||
```rust
|
||
fn build_eval_js(source_url: &str, script: &str) -> String {
|
||
let escaped_source_url = escape_js_single_quoted(source_url);
|
||
let callback = EVAL_CALLBACK_NAME;
|
||
let events_url = escape_js_single_quoted(&events_endpoint_url(source_url));
|
||
|
||
format!(
|
||
"(function(){{try{{var v=(function(){{return {script}}})();\
|
||
var t=(typeof v==='string')?v:JSON.stringify(v);\
|
||
try{{callBackJsToCpp('{escaped_source_url}@_@'+window.location.href+'@_@{callback}@_@sgBrowserExcuteJsCodeByDomain@_@'+(t??''))}}catch(_){{}}\
|
||
var j=JSON.stringify({{type:'callback',callback:'{callback}',request_url:'{escaped_source_url}',payload:{{value:(t??'')}}}});\
|
||
try{{var r=new XMLHttpRequest();r.open('POST','{events_url}',true);r.setRequestHeader('Content-Type','application/json');r.send(j)}}catch(_){{}}\
|
||
try{{navigator.sendBeacon('{events_url}',new Blob([j],{{type:'application/json'}}))}}catch(_){{}}\
|
||
}}catch(e){{}}}})()"
|
||
)
|
||
}
|
||
```
|
||
|
||
**修改后代码:**
|
||
```rust
|
||
fn build_eval_js(source_url: &str, script: &str) -> String {
|
||
let escaped_source_url = escape_js_single_quoted(source_url);
|
||
let callback = EVAL_CALLBACK_NAME;
|
||
let events_url = escape_js_single_quoted(&events_endpoint_url(source_url));
|
||
|
||
format!(
|
||
"(async function(){{try{{\
|
||
var v=await (async function(){{return {script}}})();\
|
||
if(v&&typeof v.then==='function'){{v=await v;}}\
|
||
var t=(typeof v==='string')?v:JSON.stringify(v);\
|
||
try{{callBackJsToCpp('{escaped_source_url}@_@'+window.location.href+'@_@{callback}@_@sgBrowserExcuteJsCodeByDomain@_@'+(t??''))}}catch(_){{}}\
|
||
var j=JSON.stringify({{type:'callback',callback:'{callback}',request_url:'{escaped_source_url}',payload:{{value:(t??'')}}}});\
|
||
try{{var r=new XMLHttpRequest();r.open('POST','{events_url}',true);r.setRequestHeader('Content-Type','application/json');r.send(j)}}catch(_){{}}\
|
||
try{{navigator.sendBeacon('{events_url}',new Blob([j],{{type:'application/json'}}))}}catch(_){{}}\
|
||
}}catch(e){{}}}})()"
|
||
)
|
||
}
|
||
```
|
||
|
||
**关键变更说明:**
|
||
1. `(function()` → `(async function()` - 整个 IIFE 变为异步
|
||
2. `var v=(function(){return {script}})()` → `var v=await (async function(){return {script}})()` - 内部包装也变为异步并 await
|
||
3. 新增 `if(v&&typeof v.then==='function'){v=await v;}` - 检测并等待 Promise-like 对象
|
||
|
||
- [ ] **Step 1: 修改 build_eval_js 函数**
|
||
|
||
编辑 `src/browser/callback_backend.rs` 第 433-447 行，替换为上述新代码。
|
||
|
||
- [ ] **Step 2: 编译验证**
|
||
|
||
Run: `cargo build`
|
||
Expected: 编译成功，无错误
|
||
|
||
- [ ] **Step 3: 运行现有测试**
|
||
|
||
Run: `cargo test browser_script_skill_tool`
|
||
Expected: 所有测试通过
|
||
|
||
- [ ] **Step 4: Commit**
|
||
|
||
```bash
|
||
git add src/browser/callback_backend.rs
|
||
git commit -m "fix: support async browser scripts in build_eval_js
|
||
|
||
Wrap eval script in async IIFE and await Promise-like results.
|
||
Fixes Promise serialization returning '{}' for async skill scripts.
|
||
|
||
🤖 Generated with [Qoder][https://qoder.com]"
|
||
```
|
||
|
||
---
|
||
|
||
### Task 2: 添加异步脚本测试用例
|
||
|
||
**Files:**
|
||
- Modify: `tests/browser_script_skill_tool_test.rs`
|
||
|
||
- [ ] **Step 1: 添加异步脚本测试用例**
|
||
|
||
在 `tests/browser_script_skill_tool_test.rs` 文件末尾添加新测试：
|
||
|
||
```rust
|
||
#[tokio::test]
|
||
async fn execute_browser_script_tool_awaits_async_script() {
|
||
let skill_dir = unique_temp_dir("sgclaw-browser-script-async");
|
||
let scripts_dir = skill_dir.join("scripts");
|
||
fs::create_dir_all(&scripts_dir).unwrap();
|
||
// 异步脚本，返回 Promise
|
||
fs::write(
|
||
scripts_dir.join("async_extract.js"),
|
||
"return (async function() { return { async: true, args: args }; })();\n",
|
||
)
|
||
.unwrap();
|
||
|
||
let transport = Arc::new(MockTransport::new(vec![BrowserMessage::Response {
|
||
seq: 1,
|
||
success: true,
|
||
data: json!({
|
||
"text": {
|
||
"async": true,
|
||
"args": { "expected_domain": "example.com" }
|
||
}
|
||
}),
|
||
aom_snapshot: vec![],
|
||
timing: Timing {
|
||
queue_ms: 1,
|
||
exec_ms: 5,
|
||
},
|
||
}]));
|
||
|
||
let mut policy_json = test_policy();
|
||
// 允许 example.com
|
||
policy_json = MacPolicy::from_json_str(
|
||
r#"{
|
||
"version": "1.0",
|
||
"domains": { "allowed": ["www.zhihu.com", "example.com"] },
|
||
"pipe_actions": {
|
||
"allowed": ["click", "type", "navigate", "getText", "eval"],
|
||
"blocked": []
|
||
}
|
||
}"#,
|
||
)
|
||
.unwrap();
|
||
|
||
let browser_tool = BrowserPipeTool::new(
|
||
transport.clone(),
|
||
policy_json,
|
||
vec![1, 2, 3, 4, 5, 6, 7, 8],
|
||
)
|
||
.with_response_timeout(Duration::from_secs(1));
|
||
|
||
let skill_tool = SkillTool {
|
||
name: "async_extract".to_string(),
|
||
description: "Extract data asynchronously".to_string(),
|
||
kind: "browser_script".to_string(),
|
||
command: "scripts/async_extract.js".to_string(),
|
||
args: HashMap::new(),
|
||
};
|
||
|
||
let result = execute_browser_script_tool(
|
||
&skill_tool,
|
||
&skill_dir,
|
||
&PipeBrowserBackend::from_inner(browser_tool),
|
||
json!({
|
||
"expected_domain": "example.com"
|
||
}),
|
||
)
|
||
.await
|
||
.unwrap();
|
||
|
||
assert!(result.success);
|
||
let output = serde_json::from_str::<serde_json::Value>(&result.output).unwrap();
|
||
assert_eq!(output["async"], true);
|
||
}
|
||
```
|
||
|
||
- [ ] **Step 2: 运行新测试**
|
||
|
||
Run: `cargo test execute_browser_script_tool_awaits_async_script`
|
||
Expected: 测试通过
|
||
|
||
- [ ] **Step 3: Commit**
|
||
|
||
```bash
|
||
git add tests/browser_script_skill_tool_test.rs
|
||
git commit -m "test: add async browser script test case
|
||
|
||
🤖 Generated with [Qoder][https://qoder.com]"
|
||
```
|
||
|
||
---
|
||
|
||
### Task 3: 端到端验证
|
||
|
||
**Files:**
|
||
- 无文件修改，仅验证
|
||
|
||
- [ ] **Step 1: 完整构建**
|
||
|
||
Run: `cargo build`
|
||
Expected: 编译成功
|
||
|
||
- [ ] **Step 2: 运行全部测试**
|
||
|
||
Run: `cargo test`
|
||
Expected: 所有测试通过
|
||
|
||
- [ ] **Step 3: 手动端到端测试**
|
||
|
||
使用 service console 测试 `tq-lineloss-report.collect_lineloss`:
|
||
1. 启动 sgclaw: `target/debug/sg_claw.exe`
|
||
2. 在 service console 输入: `兰州公司 台区线损大数据 月累计线损率统计分析。。。`
|
||
3. 预期结果: 返回实际报表数据，而非 `{}`
|
||
|
||
---
|
||
|
||
## 自检清单
|
||
|
||
- [x] Spec 覆盖: 设计文档中所有要点都有对应任务
|
||
- [x] 无占位符: 所有代码都是完整的
|
||
- [x] 类型一致性: 函数签名无变化
|