60 lines
1.9 KiB
Markdown
60 lines
1.9 KiB
Markdown
---
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sidebarTitle: "功能: Script Shortcuts 脚本捷径"
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sidebarOrder: 6
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---
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# Script Shortcuts 脚本捷径
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Clash Premium 实现了基于 Python3 的脚本功能, 允许用户以动态灵活的方式为数据包选择策略.
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您可以使用单个 Python 脚本控制整个规则匹配引擎, 也可以定义一些 Shortcuts 捷径并将它们与常规规则一起使用. 本页参考后者功能. 有关前者, 请参见 [脚本](./script.md).
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此功能使得在 `rules` 模式下使用脚本成为可能. 默认情况下, DNS 解析将在 SCRIPT 规则中进行. 可以在规则后面添加 `no-resolve` 来阻止解析. (例如: `SCRIPT,quic,DIRECT,no-resolve`)
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```yaml
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mode: Rule
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script:
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engine: expr # or starlark (10x to 20x slower)
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shortcuts:
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quic: network == 'udp' and dst_port == 443
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curl: resolve_process_name() == 'curl'
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# curl: resolve_process_path() == '/usr/bin/curl'
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rules:
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- SCRIPT,quic,REJECT
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```
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## 评估引擎
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[Expr](https://expr.medv.io/) 作为 Script Shortcuts 的默认引擎, 相比 Starlark 提供了 10 倍到 20 倍的性能提升.
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[Starlark](https://github.com/google/starlark-go) 是一种类似 Python 的配置语言, 您也可以将其用于 Script Shortcuts.
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## 变量
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- network: string
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- type: string
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- src_ip: string
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- dst_ip: string
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- src_port: uint16
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- dst_port: uint16
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- host: string
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- process_path: string
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::: warning
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Starlark 目前不包含 `process_path` 变量.
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:::
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## 函数
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```ts
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type resolve_ip = (host: string) => string // ip string
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type in_cidr = (ip: string, cidr: string) => boolean // ip in cidr
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type in_ipset = (name: string, ip: string) => boolean // ip in ipset
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type geoip = (ip: string) => string // country code
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type match_provider = (name: string) => boolean // in rule provider
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type resolve_process_name = () => string // find process name (curl .e.g)
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type resolve_process_path = () => string // find process path (/usr/bin/curl .e.g)
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```
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