55 lines
1.9 KiB
TypeScript
55 lines
1.9 KiB
TypeScript
import { create } from 'xmlbuilder2'
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export interface NzbFile {
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/** Name the downloader should use; the real name when it is known. */
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name: string
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poster: string
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/** Posting time in milliseconds. */
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date: number
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groups: string[]
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/** Segment number → message-id (without angle brackets) and article size. */
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segments: Record<string, { id: string; size: number }>
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}
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export interface NzbOptions {
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/** Shown by downloaders as the job name. */
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title?: string
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/** Archive password, when known. */
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password?: string
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}
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/**
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* Builds an NZB 1.1 document (newzbin DTD). The subject follows the common
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* `"name" yEnc (1/N)` form, which downloaders use to name the file.
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*/
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export function buildNzb(files: NzbFile[], options: NzbOptions = {}): string {
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const root = create({ version: '1.0', encoding: 'UTF-8' })
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.dtd({ pubID: '-//newzBin//DTD NZB 1.1//EN', sysID: 'http://www.newzbin.com/DTD/nzb/nzb-1.1.dtd' })
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.ele('nzb', { xmlns: 'http://www.newzbin.com/DTD/2003/nzb' })
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if (options.title || options.password) {
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const head = root.ele('head')
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if (options.title) head.ele('meta', { type: 'name' }).txt(options.title)
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if (options.password) head.ele('meta', { type: 'password' }).txt(options.password)
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}
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for (const file of files) {
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const numbers = Object.keys(file.segments)
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.map(Number)
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.sort((a, b) => a - b)
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const element = root.ele('file', {
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poster: file.poster,
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date: String(Math.floor(file.date / 1000)),
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subject: `"${file.name}" yEnc (1/${numbers.length})`,
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})
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const groups = element.ele('groups')
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for (const group of file.groups) groups.ele('group').txt(group)
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const segments = element.ele('segments')
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for (const number of numbers) {
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const segment = file.segments[String(number)]
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segments.ele('segment', { bytes: String(segment.size), number: String(number) }).txt(segment.id)
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}
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}
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return root.end({ prettyPrint: true })
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}
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