siujamo
97ad09ad8a
- store records in SQLite via built-in node:sqlite, no native deps - wrap DB reads in await io() so they stay out of the static shell - add CRUD pages backed by Server Actions with per-request data - generate managed config and restart container via Docker socket - add /resolve page to query dnsmasq for A and CNAME records - add Dockerfile and compose setup with shared config volume
53 lines
1.5 KiB
TypeScript
53 lines
1.5 KiB
TypeScript
import { mkdirSync, renameSync, writeFileSync } from "node:fs"
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import path from "node:path"
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import type { DnsRecord } from "./db"
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import { env } from "./env"
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const HEADER = "# Generated by dnsmasq-admin — 请勿手动编辑，每次「应用并重启」都会覆盖此文件"
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/**
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* dnsmasq's `address=/domain/ip` already answers for the domain *and* every subdomain, so
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* there is no need for a separate wildcard syntax.
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*/
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export function renderRecord(record: DnsRecord): string {
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return record.type === "A"
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? `address=/${record.domain}/${record.value}`
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: `cname=${record.domain},${record.value}`
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}
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export function renderConfig(records: DnsRecord[]): string {
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const lines = records
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.filter((record) => record.enabled)
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.map(renderRecord)
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if (lines.length === 0) {
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return `${HEADER}\n\n# 当前没有启用的记录\n`
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}
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return `${HEADER}\n\n${lines.join("\n")}\n`
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}
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/**
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* Regenerate the managed config file for the given records.
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*
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* Written to a sibling temp file first and then renamed, so dnsmasq can never read a
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* half-written file.
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*/
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export async function writeManagedConfig(records: DnsRecord[]): Promise<{
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path: string
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recordCount: number
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}> {
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const dir = path.dirname(env.confPath)
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mkdirSync(dir, { recursive: true })
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const content = renderConfig(records)
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const tempPath = `${env.confPath}.${process.pid}.tmp`
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writeFileSync(tempPath, content, "utf8")
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renameSync(tempPath, env.confPath)
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return {
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path: env.confPath,
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recordCount: records.filter((record) => record.enabled).length,
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}
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}
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