mirror of
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371 lines
7.6 KiB
Markdown
371 lines
7.6 KiB
Markdown
# 自定义解析器API使用指南
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## 📡 API端点
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当你在演练场发布自定义解析器后，可以通过以下API端点使用：
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---
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## 1️⃣ 302重定向（直接下载）
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**端点**: `/parser`
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**方法**: `GET`
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**描述**: 返回302重定向到实际下载地址，适合浏览器直接访问下载
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### 请求参数
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| 参数 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| url | string | ✅ 是 | 分享链接（需URL编码） |
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| pwd | string | ❌ 否 | 分享密码 |
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### 请求示例
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```bash
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# 基本请求
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GET http://localhost:6400/parser?url=https://lanzoui.com/i7Aq12ab3cd
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# 带密码
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GET http://localhost:6400/parser?url=https://lanzoui.com/i7Aq12ab3cd&pwd=1234
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# curl命令
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curl -L "http://localhost:6400/parser?url=https://lanzoui.com/i7Aq12ab3cd"
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```
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### 响应
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```http
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HTTP/1.1 302 Found
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Location: https://download-server.com/file/xxx
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```
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浏览器会自动跳转到下载地址。
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---
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## 2️⃣ JSON响应（获取解析结果）
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**端点**: `/json/parser`
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**方法**: `GET`
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**描述**: 返回JSON格式的解析结果，包含下载链接等详细信息
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### 请求参数
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| 参数 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| url | string | ✅ 是 | 分享链接（需URL编码） |
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| pwd | string | ❌ 否 | 分享密码 |
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### 请求示例
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```bash
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# 基本请求
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GET http://localhost:6400/json/parser?url=https://lanzoui.com/i7Aq12ab3cd
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# 带密码
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GET http://localhost:6400/json/parser?url=https://lanzoui.com/i7Aq12ab3cd&pwd=1234
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# curl命令
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curl "http://localhost:6400/json/parser?url=https://lanzoui.com/i7Aq12ab3cd"
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```
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### 响应格式
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```json
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{
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"code": 200,
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"msg": "success",
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"data": {
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"url": "https://download-server.com/file/xxx",
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"fileName": "example.zip",
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"fileSize": "10MB",
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"parseTime": 1234
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}
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}
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```
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---
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## 🔧 使用场景
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### 场景1: 浏览器直接下载
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用户点击链接直接下载：
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```html
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<a href="http://localhost:6400/parser?url=https://lanzoui.com/i7Aq12ab3cd">
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点击下载
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</a>
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```
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### 场景2: 获取下载信息
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JavaScript获取下载链接：
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```javascript
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fetch('http://localhost:6400/json/parser?url=https://lanzoui.com/i7Aq12ab3cd')
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.then(res => res.json())
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.then(data => {
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console.log('下载链接:', data.data.url);
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console.log('文件名:', data.data.fileName);
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});
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```
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### 场景3: 命令行下载
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```bash
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# 方式1: 直接下载
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curl -L -O "http://localhost:6400/parser?url=https://lanzoui.com/i7Aq12ab3cd"
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# 方式2: 先获取链接再下载
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DOWNLOAD_URL=$(curl -s "http://localhost:6400/json/parser?url=https://lanzoui.com/i7Aq12ab3cd" | jq -r '.data.url')
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curl -L -O "$DOWNLOAD_URL"
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```
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### 场景4: Python脚本
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```python
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import requests
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# 获取解析结果
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response = requests.get(
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'http://localhost:6400/json/parser',
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params={
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'url': 'https://lanzoui.com/i7Aq12ab3cd',
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'pwd': '1234'
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}
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)
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result = response.json()
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if result['code'] == 200:
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download_url = result['data']['url']
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print(f'下载链接: {download_url}')
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# 下载文件
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file_response = requests.get(download_url)
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with open('download.file', 'wb') as f:
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f.write(file_response.content)
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```
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---
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## 🎯 解析器匹配规则
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系统会根据分享链接的URL自动选择合适的解析器：
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1. **优先匹配自定义解析器**
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- 检查演练场发布的解析器
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- 使用 `@match` 正则表达式匹配
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2. **内置解析器**
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- 如果没有匹配的自定义解析器
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- 使用系统内置的解析器
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### 示例
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假设你发布了蓝奏云解析器：
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```javascript
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// @match https?://lanzou[a-z]{1,2}\.com/(?<KEY>[a-zA-Z0-9]+)
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```
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当请求以下链接时会使用你的解析器：
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- ✅ `https://lanzoui.com/i7Aq12ab3cd`
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- ✅ `https://lanzoux.com/i7Aq12ab3cd`
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- ✅ `http://lanzouy.com/i7Aq12ab3cd`
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---
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## ⚙️ 高级用法
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### 1. 指定解析器类型
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```bash
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# 通过type参数指定解析器
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GET http://localhost:6400/parser?url=https://example.com/s/abc&type=custom_parser
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```
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### 2. 获取文件列表
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对于支持文件夹的网盘：
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```bash
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# 获取文件列表
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GET http://localhost:6400/json/parser/list?url=https://example.com/s/abc
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# 按文件ID获取下载链接
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GET http://localhost:6400/json/parser/file?url=https://example.com/s/abc&fileId=123
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```
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### 3. 批量解析
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```javascript
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const urls = [
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'https://lanzoui.com/i7Aq12ab3cd',
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'https://lanzoui.com/i8Bq34ef5gh'
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];
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const results = await Promise.all(
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urls.map(url =>
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fetch(`http://localhost:6400/json/parser?url=${encodeURIComponent(url)}`)
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.then(res => res.json())
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)
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);
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```
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---
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## 🔒 安全注意事项
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### 1. SSRF防护
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系统已实施SSRF防护，以下请求会被拦截：
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❌ 内网地址：
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```bash
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# 这些会被拦截
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http://127.0.0.1:8080/admin
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http://192.168.1.1/config
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http://169.254.169.254/latest/meta-data/
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```
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✅ 公网地址：
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```bash
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# 这些是允许的
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https://lanzoui.com/xxx
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https://pan.baidu.com/s/xxx
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```
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### 2. 速率限制
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建议添加速率限制，避免滥用：
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```javascript
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// 使用节流
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import { throttle } from 'lodash';
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const parseUrl = throttle((url) => {
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return fetch(`/json/parser?url=${encodeURIComponent(url)}`);
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}, 1000); // 每秒最多1次请求
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```
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---
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## 📊 错误处理
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### 常见错误码
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| 错误码 | 说明 | 解决方法 |
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|--------|------|----------|
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| 400 | 参数错误 | 检查url参数是否正确编码 |
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| 404 | 未找到解析器 | 确认链接格式是否匹配解析器规则 |
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| 500 | 解析失败 | 查看日志，可能是解析器代码错误 |
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| 503 | 服务不可用 | 稍后重试 |
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### 错误响应示例
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```json
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{
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"code": 500,
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"msg": "解析失败: 无法提取下载参数",
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"data": null
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}
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```
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### 错误处理示例
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```javascript
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fetch('/json/parser?url=' + encodeURIComponent(shareUrl))
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.then(res => res.json())
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.then(data => {
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if (data.code === 200) {
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console.log('成功:', data.data.url);
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} else {
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console.error('失败:', data.msg);
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}
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})
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.catch(error => {
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console.error('请求失败:', error.message);
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});
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```
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---
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## 💡 最佳实践
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### 1. URL编码
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始终对分享链接进行URL编码：
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```javascript
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// ✅ 正确
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const encodedUrl = encodeURIComponent('https://lanzoui.com/i7Aq12ab3cd');
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fetch(`/json/parser?url=${encodedUrl}`);
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// ❌ 错误
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fetch('/json/parser?url=https://lanzoui.com/i7Aq12ab3cd');
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```
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### 2. 错误重试
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实现指数退避重试：
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```javascript
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async function parseWithRetry(url, maxRetries = 3) {
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for (let i = 0; i < maxRetries; i++) {
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try {
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const response = await fetch(`/json/parser?url=${encodeURIComponent(url)}`);
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const data = await response.json();
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if (data.code === 200) {
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return data;
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}
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// 如果是服务器错误，重试
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if (data.code >= 500 && i < maxRetries - 1) {
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await new Promise(resolve => setTimeout(resolve, Math.pow(2, i) * 1000));
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continue;
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}
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throw new Error(data.msg);
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} catch (error) {
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if (i === maxRetries - 1) throw error;
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await new Promise(resolve => setTimeout(resolve, Math.pow(2, i) * 1000));
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}
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}
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}
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```
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### 3. 超时处理
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设置请求超时：
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```javascript
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const controller = new AbortController();
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const timeout = setTimeout(() => controller.abort(), 30000); // 30秒超时
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fetch('/json/parser?url=' + encodeURIComponent(url), {
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signal: controller.signal
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})
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.then(res => res.json())
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.finally(() => clearTimeout(timeout));
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```
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---
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## 📚 更多资源
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- **演练场文档**: `/parser/doc/JAVASCRIPT_PARSER_GUIDE.md`
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- **自定义解析器**: `/parser/doc/CUSTOM_PARSER_GUIDE.md`
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- **安全指南**: `/parser/doc/security/`
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---
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**最后更新**: 2025-11-29
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**版本**: v1.0
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