implemented a lot of features
This commit is contained in:
Daan Meijer committed
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bcb9be5da9
141 files changed
+10705
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@@ -0,0 +1,45 @@
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import { test } from '@japa/runner'
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import yencode from 'yencode'
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import { sniffContentType } from '#lib/content/index'
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import { crc32Hex, decodeSegment, YencError } from '#lib/yenc/index'
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test.group('content / sniffContentType', () => {
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test('recognises containers and media by magic bytes', ({ assert }) => {
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const magic = (hex: string, pad = 16) => Buffer.concat([Buffer.from(hex, 'hex'), Buffer.alloc(pad)])
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assert.equal(sniffContentType(Buffer.concat([Buffer.from('nzbe'), Buffer.alloc(40)])), 'nzbe')
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assert.equal(sniffContentType(magic('5041523200504b54')), 'par2')
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assert.equal(sniffContentType(magic('526172211a070100')), 'rar5')
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assert.equal(sniffContentType(magic('526172211a0700')), 'rar4')
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assert.equal(sniffContentType(magic('1a45dfa3')), 'matroska')
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assert.equal(sniffContentType(magic('0000001866747970')), 'mp4')
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assert.equal(sniffContentType(magic('28b52ffd')), 'zstd')
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assert.equal(sniffContentType(Buffer.from('<?xml version="1.0"?>\n<!DOCTYPE nzb PUBLIC "x">')), 'nzb')
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assert.isNull(sniffContentType(Buffer.from('plain text')))
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assert.equal(sniffContentType(magic('ffd8ffe0')), 'jpeg')
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assert.equal(sniffContentType(magic('89504e470d0a1a0a')), 'png')
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assert.equal(sniffContentType(Buffer.concat([Buffer.from('ID3'), Buffer.alloc(16)])), 'mp3')
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assert.equal(sniffContentType(Buffer.concat([Buffer.from('fLaC'), Buffer.alloc(16)])), 'flac')
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assert.equal(sniffContentType(Buffer.from('RIFF\x00\x00\x00\x00AVI LIST', 'latin1')), 'avi')
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// UDF (Blu-ray) volume recognition sequence at 32 KiB
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const udf = Buffer.alloc(0x9000)
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udf.write('BEA01', 0x8001, 'latin1')
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udf.write('NSR03', 0x8801, 'latin1')
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assert.equal(sniffContentType(udf), 'udf')
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})
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})
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test.group('yenc / lenientSize', () => {
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test('decodes a part whose declared size leaves out a header, still checking the CRC', ({ assert }) => {
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const data = Buffer.concat([Buffer.from('nzbe'), Buffer.alloc(16, 7), Buffer.from('ciphertext-here')])
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const declared = data.length - 20
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const body = Buffer.from(
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`=ybegin part=1 line=128 size=${declared} name=f6dd6b156692a52b.bin\r\n=ypart begin=1 end=${declared}\r\n` +
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yencode.encode(data).toString('latin1') +
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`\r\n=yend size=${declared} part=1 pcrc32=${crc32Hex(data)}`,
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'latin1'
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)
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assert.throws(() => decodeSegment(body), YencError as any)
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assert.isTrue(decodeSegment(body, { lenientSize: true }).data.equals(data))
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})
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})
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@@ -0,0 +1,18 @@
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import { test } from '@japa/runner'
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import { parseGroupResponse } from '#lib/nntp/group'
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test.group('nntp / parseGroupResponse', () => {
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test('parses the reply from news.eweka.nl', ({ assert }) => {
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// Captured 2026-09-27. count == last - first + 1, so the field order is standard.
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assert.deepEqual(parseGroupResponse('211 27275164317 266599 27275430915 alt.binaries.test'), {
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count: 27275164317n,
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first: 266599n,
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last: 27275430915n,
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name: 'alt.binaries.test',
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})
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})
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test('rejects non-211 replies', ({ assert }) => {
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assert.throws(() => parseGroupResponse('411 No such group'), /Unexpected GROUP response/)
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})
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})
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@@ -0,0 +1,55 @@
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import { test } from '@japa/runner'
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import { buildNzb } from '#lib/nzb/index'
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test.group('nzb / buildNzb', () => {
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test('writes files, groups and ordered segments', ({ assert }) => {
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const xml = buildNzb(
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[
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{
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name: 'Some.Show.S01E01.mkv',
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poster: 'poster@example.invalid',
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date: 1_790_000_000_000,
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groups: ['alt.binaries.test'],
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segments: { '2': { id: 'b@x', size: 700 }, '1': { id: 'a@x', size: 800 } },
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},
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],
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{ title: 'Some.Show.S01E01' }
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)
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assert.include(xml, '<!DOCTYPE nzb PUBLIC "-//newzBin//DTD NZB 1.1//EN"')
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assert.include(xml, '<meta type="name">Some.Show.S01E01</meta>')
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assert.include(xml, 'subject=""Some.Show.S01E01.mkv" yEnc (1/2)"')
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assert.include(xml, 'date="1790000000"')
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assert.include(xml, '<group>alt.binaries.test</group>')
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assert.isBelow(xml.indexOf('>a@x<'), xml.indexOf('>b@x<'))
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assert.include(xml, '<segment bytes="800" number="1">a@x</segment>')
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})
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})
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test.group('nzb / parseNzb', () => {
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test('reads meta, files, groups and segments, decoding entities', async ({ assert }) => {
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const { parseNzb } = await import('#lib/nzb/index')
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const xml = `<?xml version="1.0" encoding="utf-8" ?>
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<!DOCTYPE nzb PUBLIC "-//newzBin//DTD NZB 0.9//EN" "http://www.newzbin.com/DTD/nzb/nzb-0.9.dtd">
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<nzb xmlns="http://www.newzbin.com/DTD/2003/nzb">
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<head><meta type="name">Some.Show.S01E01</meta><meta type="password">s3cr&t</meta></head>
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<file poster="Yenc@power-post.org (Cosmo71)" date="1790598923" subject="Wond40 "Nachbe" x.part1.rar" yEnc (0001/2)">
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<groups><group>alt.binaries.bloaf</group></groups>
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<segments>
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<segment bytes="1000" number="2">b@x.local</segment>
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<segment bytes="2000" number="1"><a@x.local></segment>
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</segments>
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</file>
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<file poster="p" date="1" subject="empty"><groups/><segments></segments></file>
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</nzb>`
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const nzb = parseNzb(xml)!
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assert.deepEqual(nzb.meta, { name: 'Some.Show.S01E01', password: 's3cr&t' })
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assert.lengthOf(nzb.files, 1)
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assert.equal(nzb.files[0].subject, 'Wond40 "Nachbe" x.part1.rar" yEnc (0001/2)')
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assert.deepEqual(nzb.files[0].groups, ['alt.binaries.bloaf'])
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assert.deepEqual(nzb.files[0].segments, [
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{ number: 1, bytes: 2000, id: 'a@x.local' },
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{ number: 2, bytes: 1000, id: 'b@x.local' },
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])
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assert.isNull(parseNzb('<html>not an nzb</html>'))
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})
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})
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@@ -0,0 +1,60 @@
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import { test } from '@japa/runner'
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import { createHash } from 'node:crypto'
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import { isPar2, parsePar2 } from '#lib/par2/index'
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const md5 = (data: Buffer) => createHash('md5').update(data).digest()
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/** Builds one PAR2 packet with a valid checksum. */
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function packet(setId: Buffer, type: string, body: Buffer) {
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const padded = Buffer.concat([body, Buffer.alloc((4 - (body.length % 4)) % 4)])
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const length = Buffer.alloc(8)
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length.writeBigUInt64LE(BigInt(64 + padded.length))
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const typeBuf = Buffer.alloc(16)
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typeBuf.write(type, 'latin1')
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const hashed = Buffer.concat([setId, typeBuf, padded])
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return Buffer.concat([Buffer.from('PAR2\0PKT', 'latin1'), length, md5(hashed), hashed])
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}
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function fileDesc(setId: Buffer, name: string, size: number) {
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const len = Buffer.alloc(8)
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len.writeBigUInt64LE(BigInt(size))
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const md5_16k = md5(Buffer.from(`${name}-16k`))
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const fileId = md5(Buffer.concat([md5_16k, len, Buffer.from(name)]))
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const body = Buffer.concat([fileId, md5(Buffer.from(name)), md5_16k, len, Buffer.from(name, 'utf8')])
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return packet(setId, 'PAR 2.0\0FileDesc', body)
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}
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test.group('par2 / parsePar2', () => {
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const setId = Buffer.alloc(16, 7)
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test('reads file names and sizes from FileDesc packets', ({ assert }) => {
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const data = Buffer.concat([
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packet(setId, 'PAR 2.0\0Main', Buffer.alloc(12)),
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fileDesc(setId, 'Some.Movie.2024.part01.rar', 104857600),
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fileDesc(setId, 'Some.Movie.2024.part02.rar', 52428800),
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fileDesc(setId, 'Some.Movie.2024.part01.rar', 104857600), // duplicates are common
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])
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assert.isTrue(isPar2(data))
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const set = parsePar2(data)!
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assert.equal(set.recoverySetId, setId.toString('hex'))
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assert.deepEqual(
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set.files.map((f) => [f.name, f.length]),
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[
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['Some.Movie.2024.part01.rar', 104857600],
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['Some.Movie.2024.part02.rar', 52428800],
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]
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)
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})
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test('skips corrupted packets and resumes at the next one', ({ assert }) => {
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const bad = fileDesc(setId, 'bad.bin', 1)
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bad[100] ^= 0xff
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const data = Buffer.concat([bad, fileDesc(setId, 'good.bin', 12345)])
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assert.deepEqual(parsePar2(data)!.files.map((f) => f.name), ['good.bin'])
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})
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test('returns null for non-par2 data', ({ assert }) => {
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assert.isFalse(isPar2(Buffer.from('Rar!\x1a\x07\x00', 'latin1')))
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assert.isNull(parsePar2(Buffer.from('hello world')))
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})
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})
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@@ -0,0 +1,230 @@
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import { test } from '@japa/runner'
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import { crc32 } from 'node:zlib'
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import { decodeRar4Name, parseRarHeaders, rarFormat, storedEntryData, type RarEntry } from '#lib/rar/index'
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/** Entries without the extraction fields, for comparing listings. */
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const listing = (entries: RarEntry[]) => entries.map(({ stored, dataOffset, ...rest }) => rest)
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// --- RAR 4 builders -----------------------------------------------------------
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const RAR4 = Buffer.from([0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x00])
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function rar4Block(type: number, flags: number, body: Buffer) {
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const header = Buffer.alloc(7)
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header.writeUInt8(type, 2)
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header.writeUInt16LE(flags, 3)
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header.writeUInt16LE(7 + body.length, 5)
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const block = Buffer.concat([header, body])
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block.writeUInt16LE(crc32(block.subarray(2)) & 0xffff, 0)
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return block
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}
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function rar4Main(flags: number) {
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return rar4Block(0x73, flags, Buffer.alloc(6))
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}
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function rar4File(name: Buffer, opts: { flags?: number; packed: number; unpacked: number; method?: number }) {
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const body = Buffer.alloc(25)
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body.writeUInt8(opts.method ?? 0x33, 18)
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body.writeUInt32LE(opts.packed, 0)
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body.writeUInt32LE(opts.unpacked, 4)
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body.writeUInt16LE(name.length, 19)
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// LONG_BLOCK (0x8000) is always set on file headers.
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return Buffer.concat([rar4Block(0x74, 0x8000 | (opts.flags ?? 0), Buffer.concat([body, name])), Buffer.alloc(opts.packed)])
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}
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// --- RAR 5 builders -----------------------------------------------------------
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const RAR5 = Buffer.from([0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x01, 0x00])
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function vint(value: number) {
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const bytes: number[] = []
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do {
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let byte = value % 128
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value = Math.floor(value / 128)
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if (value > 0) byte |= 0x80
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bytes.push(byte)
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} while (value > 0)
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return Buffer.from(bytes)
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}
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function rar5Block(type: number, headerFlags: number, fields: Buffer, opts: { extra?: Buffer; data?: number } = {}) {
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let flags = headerFlags
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const parts = [vint(type)]
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const sizes: Buffer[] = []
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if (opts.extra) {
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flags |= 0x0001
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sizes.push(vint(opts.extra.length))
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}
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if (opts.data !== undefined) {
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flags |= 0x0002
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sizes.push(vint(opts.data))
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}
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const header = Buffer.concat([...parts, vint(flags), ...sizes, fields, opts.extra ?? Buffer.alloc(0)])
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const sized = Buffer.concat([vint(header.length), header])
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const crc = Buffer.alloc(4)
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crc.writeUInt32LE(crc32(sized) >>> 0)
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return Buffer.concat([crc, sized, Buffer.alloc(opts.data ?? 0)])
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}
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function rar5File(name: string, size: number, opts: { packed: number; headerFlags?: number; encrypted?: boolean; dir?: boolean }) {
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const nameBuf = Buffer.from(name, 'utf8')
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const fields = Buffer.concat([
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vint(opts.dir ? 0x0001 : 0), // file flags
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vint(size),
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vint(0x20), // attributes
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vint(0), // compression info
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vint(0), // host OS
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vint(nameBuf.length),
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nameBuf,
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])
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// Encryption record: size, type 1, then its data (dummy here).
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const extra = opts.encrypted ? Buffer.concat([vint(3), vint(0x01), Buffer.from([0, 0])]) : undefined
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return rar5Block(2, opts.headerFlags ?? 0, fields, { extra, data: opts.packed })
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}
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test.group('rar / RAR 4', () => {
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test('lists files of a first volume, including 64-bit sizes and flags', ({ assert }) => {
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const data = Buffer.concat([
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RAR4,
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rar4Main(0x0001 | 0x0100), // volume, first volume
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rar4File(Buffer.from('Some.Movie.2024/movie.mkv'), { packed: 10, unpacked: 5_000_000, flags: 0x0002 }),
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])
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assert.equal(rarFormat(data), 'rar4')
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const info = parseRarHeaders(data)!
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assert.include(info, { format: 'rar4', volume: true, firstVolume: true, headersEncrypted: false, truncated: true })
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assert.deepEqual(listing(info.entries), [
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{ name: 'Some.Movie.2024/movie.mkv', size: 5_000_000, packedSize: 10, directory: false, encrypted: false, splitBefore: false, splitAfter: true },
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])
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})
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test('detects password-protected files and encrypted headers', ({ assert }) => {
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const files = parseRarHeaders(
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Buffer.concat([RAR4, rar4Main(0), rar4File(Buffer.from('secret.bin'), { packed: 4, unpacked: 4, flags: 0x0004 })])
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)!
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assert.isTrue(files.entries[0].encrypted)
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const headers = parseRarHeaders(Buffer.concat([RAR4, rar4Main(0x0080)]))!
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assert.isTrue(headers.headersEncrypted)
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assert.lengthOf(headers.entries, 0)
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})
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test('copies out stored entries, not compressed ones', ({ assert }) => {
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const data = Buffer.concat([
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RAR4,
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rar4Main(0),
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rar4File(Buffer.from('a.nzb'), { packed: 5, unpacked: 5, method: 0x30 }),
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rar4File(Buffer.from('b.nzb'), { packed: 5, unpacked: 9 }),
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])
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const [stored, packed] = parseRarHeaders(data)!.entries
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data.write('<nzb>', stored.dataOffset)
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assert.equal(storedEntryData(data, stored)?.toString(), '<nzb>')
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assert.isFalse(packed.stored)
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assert.isNull(storedEntryData(data, packed))
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})
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test('stops at a header with a bad CRC', ({ assert }) => {
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const good = rar4File(Buffer.from('a.bin'), { packed: 1, unpacked: 1 })
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const bad = rar4File(Buffer.from('b.bin'), { packed: 1, unpacked: 1 })
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bad[10] ^= 0xff
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const info = parseRarHeaders(Buffer.concat([RAR4, rar4Main(0), good, bad]))!
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assert.deepEqual(info.entries.map((e) => e.name), ['a.bin'])
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})
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test('decodes compressed Unicode names', ({ assert }) => {
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// "é.txt": ASCII fallback "?.txt", then highByte 0, flags 0b01_00_00_00 (é via high byte,
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// then 3 plain bytes), followed by one more flag byte for the last byte.
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const ascii = Buffer.from('?.txt', 'latin1')
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const encoded = Buffer.from([0x00, 0b01000000, 0xe9, 0x2e, 0x74, 0x78, 0b00000000, 0x74])
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assert.equal(decodeRar4Name(Buffer.concat([ascii, Buffer.from([0]), encoded])), 'é.txt')
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assert.equal(decodeRar4Name(Buffer.from('plain.txt')), 'plain.txt')
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})
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})
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test.group('rar / RAR 5', () => {
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test('lists files and reads volume flags', ({ assert }) => {
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const data = Buffer.concat([
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RAR5,
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rar5Block(1, 0, vint(0x0001)), // main: volume, no volume number → first volume
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rar5File('Release/track01.flac', 30_000_000, { packed: 20, headerFlags: 0x0010 }),
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])
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assert.equal(rarFormat(data), 'rar5')
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const info = parseRarHeaders(data)!
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assert.include(info, { format: 'rar5', volume: true, firstVolume: true, headersEncrypted: false })
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assert.deepEqual(listing(info.entries), [
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{ name: 'Release/track01.flac', size: 30_000_000, packedSize: 20, directory: false, encrypted: false, splitBefore: false, splitAfter: true },
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])
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})
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test('a later volume carries a volume number', ({ assert }) => {
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const info = parseRarHeaders(Buffer.concat([RAR5, rar5Block(1, 0, Buffer.concat([vint(0x0003), vint(4)]))]))!
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assert.isFalse(info.firstVolume)
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})
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test('detects encrypted files and encrypted headers', ({ assert }) => {
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const files = parseRarHeaders(Buffer.concat([RAR5, rar5Block(1, 0, vint(0)), rar5File('x.mkv', 1, { packed: 1, encrypted: true })]))!
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assert.isTrue(files.entries[0].encrypted)
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const headers = parseRarHeaders(Buffer.concat([RAR5, rar5Block(4, 0, Buffer.alloc(3))]))!
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assert.isTrue(headers.headersEncrypted)
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})
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test('marks the listing complete at the end-of-archive header', ({ assert }) => {
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const info = parseRarHeaders(Buffer.concat([RAR5, rar5Block(1, 0, vint(0)), rar5File('a', 1, { packed: 1 }), rar5Block(5, 0, vint(0))]))!
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assert.isFalse(info.truncated)
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assert.lengthOf(info.entries, 1)
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})
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test('copies out entries stored without compression', ({ assert }) => {
|
||||
const data = Buffer.concat([RAR5, rar5Block(1, 0, vint(0)), rar5File('a.nzb', 5, { packed: 5 }), rar5Block(5, 0, vint(0))])
|
||||
const entry = parseRarHeaders(data)!.entries[0]
|
||||
assert.isTrue(entry.stored)
|
||||
data.write('<nzb>', entry.dataOffset)
|
||||
assert.equal(storedEntryData(data, entry)?.toString(), '<nzb>')
|
||||
assert.isNull(storedEntryData(data.subarray(0, entry.dataOffset + 2), entry))
|
||||
assert.isNull(storedEntryData(data, { ...entry, encrypted: true }))
|
||||
})
|
||||
|
||||
test('returns null for other data', ({ assert }) => {
|
||||
assert.isNull(parseRarHeaders(Buffer.from('PAR2\0PKT', 'latin1')))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('rar / release naming from contents', () => {
|
||||
const info = (names: string[]) =>
|
||||
({ format: 'rar5', volume: false, firstVolume: true, solid: false, headersEncrypted: false, truncated: true,
|
||||
entries: names.map((name) => ({ name, size: 1, packedSize: 1, directory: false, encrypted: false, splitBefore: false, splitAfter: false })) }) as any
|
||||
|
||||
test('uses the shared top-level directory when it looks like a release name', async ({ assert }) => {
|
||||
const { releaseNameFromContents } = await import('#services/ArchiveService')
|
||||
assert.equal(
|
||||
releaseNameFromContents(info(['GLDY_LX_-_Pretty_Girl_Rage_EP-WEB-2026-DIM/00-a.jpg', 'GLDY_LX_-_Pretty_Girl_Rage_EP-WEB-2026-DIM/01-b.flac'])),
|
||||
'GLDY_LX_-_Pretty_Girl_Rage_EP-WEB-2026-DIM'
|
||||
)
|
||||
// No directory: the largest readable entry names the release.
|
||||
assert.equal(
|
||||
releaseNameFromContents(info(['Joker.Folie.a.Deux.2024.2160p.HMAX.WEB-DL.MULTi.DDP5.1.Atmos.H.265.nzb'])),
|
||||
'Joker.Folie.a.Deux.2024.2160p.HMAX.WEB-DL.MULTi.DDP5.1.Atmos.H.265'
|
||||
)
|
||||
assert.isUndefined(releaseNameFromContents(info(['movie.mkv'])))
|
||||
assert.isUndefined(releaseNameFromContents(info(['Xq8r2KdLm3Zw91PqA7.mkv'])))
|
||||
assert.isUndefined(releaseNameFromContents(info(['a/x', 'b/y'])))
|
||||
assert.isUndefined(releaseNameFromContents(info(['Xq8r2KdLm3Zw91Pq/x.mkv'])))
|
||||
})
|
||||
|
||||
test('recognises obfuscated names', async ({ assert }) => {
|
||||
const { looksRandom } = await import('#services/ArchiveService')
|
||||
assert.isTrue(looksRandom('CGBWgdhlSCAOAW62gLWRRM'))
|
||||
assert.isTrue(looksRandom('0220e975b1417f96b77dc64410e10ebc'))
|
||||
assert.isFalse(looksRandom('Plus.and.Minus.S01E06.1080p'))
|
||||
assert.isFalse(looksRandom('1790546808_nicovideo_jp_watch_sm26679715'))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('rar / looksRandom capitals', () => {
|
||||
test('long letter-only tokens with many capitals are random', async ({ assert }) => {
|
||||
const { looksRandom } = await import('#services/ArchiveService')
|
||||
assert.isTrue(looksRandom('RmISakytFwXSCEzjVEpaKk'))
|
||||
assert.isTrue(looksRandom('326678d1d07ef12a.bin'))
|
||||
assert.isFalse(looksRandom('Some.Show.S01E01'))
|
||||
assert.isFalse(looksRandom('TheQuickBrownFoxJumps'))
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,169 @@
|
||||
import { test } from '@japa/runner'
|
||||
import { fileStem, releaseIdentity, subjectRemainder } from '#lib/release/index'
|
||||
import { looksLikeFilename, weakFileKey } from '#lib/subject/index'
|
||||
|
||||
test.group('release / fileStem', () => {
|
||||
test('reduces all files of a set to the same stem', ({ assert }) => {
|
||||
const names = [
|
||||
'1790546808_nicovideo_jp_watch_sm26679715.tar.zst',
|
||||
'1790546808_nicovideo_jp_watch_sm26679715.tar.zst.par2',
|
||||
'1790546808_nicovideo_jp_watch_sm26679715.tar.zst.vol03+04.par2',
|
||||
]
|
||||
assert.deepEqual(new Set(names.map(fileStem)), new Set(['1790546808_nicovideo_jp_watch_sm26679715']))
|
||||
})
|
||||
|
||||
test('handles rar, split and par2 volume naming', ({ assert }) => {
|
||||
assert.equal(fileStem('lJzuoIKA3T8xjzAD3vqtw0.part036.rar'), 'lJzuoIKA3T8xjzAD3vqtw0')
|
||||
assert.equal(fileStem('Some.Movie.2024.r07'), 'Some.Movie.2024')
|
||||
assert.equal(fileStem('Some.Movie.2024.mkv.001'), 'Some.Movie.2024')
|
||||
assert.equal(fileStem('Some.Movie.2024.2160p.WEB-DL.H.265.mkv'), 'Some.Movie.2024.2160p.WEB-DL.H.265')
|
||||
assert.equal(fileStem('Some.Movie.2024.H.264.nzb'), 'Some.Movie.2024.H.264')
|
||||
assert.equal(fileStem('Some.Movie.2024.vol127-128.par2'), 'Some.Movie.2024')
|
||||
assert.equal(fileStem('Some.Movie.2024.nfo'), 'Some.Movie.2024')
|
||||
assert.equal(fileStem('00-artist-album-web-2026.m3u'), '00-artist-album-web-2026')
|
||||
assert.equal(fileStem('f6dd6b156692a52b.bin'), 'f6dd6b156692a52b')
|
||||
})
|
||||
|
||||
test('never reduces a name to nothing', ({ assert }) => {
|
||||
assert.equal(fileStem('.par2'), '.par2')
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / subjectRemainder', () => {
|
||||
test('is empty when the subject only has counters, filename and size', ({ assert }) => {
|
||||
assert.equal(subjectRemainder('[1/4] - "x.tar.zst" yEnc 15411409'), '')
|
||||
assert.equal(subjectRemainder('. - [00/88] - "60SHkTQSvn5RZGExwju2.nzb" yEnc'), '')
|
||||
})
|
||||
|
||||
test('keeps a release name written outside the quotes', ({ assert }) => {
|
||||
assert.equal(
|
||||
subjectRemainder('Some.Show.S01E02.1080p [03/40] - "abc.part02.rar" yEnc'),
|
||||
'Some Show S01E02 1080p'
|
||||
)
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / releaseIdentity', () => {
|
||||
test('groups a par2 set with its archive by stem, per poster', ({ assert }) => {
|
||||
const base = { poster: 'p', weak: false }
|
||||
const a = releaseIdentity({ ...base, subject: '[1/4] - "x.tar.zst" yEnc 1', name: 'x.tar.zst' })!
|
||||
const b = releaseIdentity({ ...base, subject: '[3/4] - "x.tar.zst.vol01+02.par2" yEnc 2', name: 'x.tar.zst.vol01+02.par2' })!
|
||||
assert.equal(a.key, b.key)
|
||||
assert.equal(a.name, 'x')
|
||||
assert.equal(a.fileTotal, 4)
|
||||
const other = releaseIdentity({ ...base, poster: 'q', subject: '[1/4] - "x.tar.zst" yEnc 1', name: 'x.tar.zst' })!
|
||||
assert.notEqual(a.key, other.key)
|
||||
})
|
||||
|
||||
test('a par2 index posted without [i/M] counter joins its release', ({ assert }) => {
|
||||
const base = { poster: 'nicovideo_archiver', weak: false }
|
||||
const archive = releaseIdentity({ ...base, subject: '[1/6] - "x.tar.zst" yEnc 105054576', name: 'x.tar.zst' })!
|
||||
const index = releaseIdentity({ ...base, subject: '"x.tar.zst.par2" yEnc 3100', name: 'x.tar.zst.par2' })!
|
||||
assert.equal(index.key, archive.key)
|
||||
assert.equal(archive.fileTotal, 6)
|
||||
assert.isUndefined(index.fileTotal)
|
||||
})
|
||||
|
||||
test('uses the subject text when it names the release', ({ assert }) => {
|
||||
const base = { poster: 'p', weak: false }
|
||||
const a = releaseIdentity({ ...base, subject: 'My.Release [01/40] - "abc.part01.rar" yEnc', name: 'abc.part01.rar' })!
|
||||
const b = releaseIdentity({ ...base, subject: 'My.Release [40/40] - "abc.par2" yEnc', name: 'abc.par2' })!
|
||||
assert.equal(a.key, b.key)
|
||||
assert.equal(a.name, 'My Release')
|
||||
})
|
||||
|
||||
test('obfuscated volumes group by stem regardless of the random poster', ({ assert }) => {
|
||||
const a = releaseIdentity({ poster: '3Uzx7TTSFpLzz@ngPost.com', subject: '"lJzu.part033.rar" yEnc', name: 'lJzu.part033.rar', weak: true })!
|
||||
const b = releaseIdentity({ poster: 'bGLd1oaXRdrK1@ngPost.com', subject: '"lJzu.part034.rar" yEnc', name: 'lJzu.part034.rar', weak: true })!
|
||||
assert.equal(a.key, b.key)
|
||||
})
|
||||
|
||||
test('random extensionless names cannot be grouped by name', ({ assert }) => {
|
||||
const name = '204b914a977e5f891590ff1099c7a8caf1a0be537bfa5bf7f3a8b1213231'
|
||||
assert.isNull(releaseIdentity({ poster: 'x', subject: `"${name}" yEnc`, name, weak: true }))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('subject / weakFileKey', () => {
|
||||
test('ignores random per-article names, keeps real filenames', ({ assert }) => {
|
||||
assert.isFalse(looksLikeFilename('204b914a977e5f891590ff1099c7a8caf1a0be537bfa5bf7f3a8b1213231'))
|
||||
assert.isTrue(looksLikeFilename('lJzuoIKA3T8xjzAD3vqtw0.part033.rar'))
|
||||
// Same file, different random names per article: same key.
|
||||
assert.equal(weakFileKey('aaaa1111', 5000, 7), weakFileKey('bbbb2222', 5000, 7))
|
||||
// Equal-sized volumes with real names: different keys.
|
||||
assert.notEqual(weakFileKey('x.part01.rar', 5000, 7), weakFileKey('x.part02.rar', 5000, 7))
|
||||
assert.notEqual(weakFileKey('aaaa1111', 5000, 7), weakFileKey('aaaa1111', 5001, 7))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / rarReleaseIdentity', () => {
|
||||
test('groups volumes by the shared top-level directory', async ({ assert }) => {
|
||||
const { rarReleaseIdentity } = await import('#lib/release/index')
|
||||
const first = rarReleaseIdentity([
|
||||
{ name: 'LASZR_-_DYING_ALIVE-(PRO094)-WEB-2026-DIM/00-cover.jpg', size: 589382 },
|
||||
{ name: 'LASZR_-_DYING_ALIVE-(PRO094)-WEB-2026-DIM/01-track.flac', size: 30_000_000 },
|
||||
])!
|
||||
const later = rarReleaseIdentity([{ name: 'LASZR_-_DYING_ALIVE-(PRO094)-WEB-2026-DIM/03-track.flac', size: 29_000_000 }])!
|
||||
assert.equal(first.key, later.key)
|
||||
assert.equal(first.name, 'LASZR_-_DYING_ALIVE-(PRO094)-WEB-2026-DIM')
|
||||
assert.equal(first.source, 'rar')
|
||||
})
|
||||
|
||||
test('without a directory, volumes of one file share its first entry', async ({ assert }) => {
|
||||
const { rarReleaseIdentity } = await import('#lib/release/index')
|
||||
const a = rarReleaseIdentity([{ name: 'Some.Show.S01E01.1080p.mkv', size: 3_000_000_000 }])!
|
||||
const b = rarReleaseIdentity([{ name: 'Some.Show.S01E01.1080p.mkv', size: 3_000_000_000 }])!
|
||||
assert.equal(a.key, b.key)
|
||||
assert.equal(a.name, 'Some.Show.S01E01.1080p')
|
||||
assert.isNull(rarReleaseIdentity([]))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / namesRelease', () => {
|
||||
test('random per-file tags and poster ids are not a release name', async ({ assert }) => {
|
||||
const { namesRelease, subjectRemainder, releaseIdentity } = await import('#lib/release/index')
|
||||
const subject = 'elys-de81bcabef5faf6a - [Nyh5Q07Y] "JkpNIFg7En50zU1U" yEnc'
|
||||
assert.isFalse(namesRelease(subjectRemainder(subject)))
|
||||
const a = releaseIdentity({ poster: 'elys', subject, name: 'JkpNIFg7En50zU1U', weak: false })!
|
||||
assert.equal(a.source, 'stem')
|
||||
assert.isTrue(namesRelease(subjectRemainder('Some.Show.S01E02.1080p [03/40] - "abc.part02.rar" yEnc')))
|
||||
assert.isTrue(namesRelease('My Release'))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / post id', () => {
|
||||
test('groups random-named files of one post by poster, post id and file count', async ({ assert }) => {
|
||||
const { releaseIdentity, isPostToken } = await import('#lib/release/index')
|
||||
const base = { poster: 'jW344UtC8R2bZEegrVLz@x', weak: false }
|
||||
const a = releaseIdentity({ ...base, subject: '83110629-n [10/18] - "eiae6fulpolas2adfts6o8643n3e6j6ct8d3219aau0jc33ol9r50tohncgr46evpl0dqoqktfb7k" yEnc', name: 'eiae6fulpolas2adfts6o8643n3e6j6ct8d3219aau0jc33ol9r50tohncgr46evpl0dqoqktfb7k' })!
|
||||
const b = releaseIdentity({ ...base, subject: '83110629-n [01/18] - "2ef0vm4kb618nv17kn0qsb0j1ofh7pgqtk5a3v5lkqqf1f7g6ed0" yEnc', name: '2ef0vm4kb618nv17kn0qsb0j1ofh7pgqtk5a3v5lkqqf1f7g6ed0' })!
|
||||
assert.equal(a.key, b.key)
|
||||
assert.equal(a.source, 'post')
|
||||
assert.equal(a.fileTotal, 18)
|
||||
const other = releaseIdentity({ ...base, subject: '83110630-n [01/18] - "x" yEnc', name: 'x' })!
|
||||
assert.notEqual(a.key, other.key)
|
||||
|
||||
assert.isTrue(isPostToken('83110629 n'))
|
||||
assert.isFalse(isPostToken('PRiVATE'))
|
||||
assert.isFalse(isPostToken(''))
|
||||
// Without a counter there is nothing to bound the post: fall back to the stem.
|
||||
assert.equal(releaseIdentity({ ...base, subject: '83110629-n - "x.bin" yEnc', name: 'x.bin' })!.source, 'stem')
|
||||
})
|
||||
})
|
||||
|
||||
test.group('release / par2 names', () => {
|
||||
test('names a season pack after what its episodes share', async ({ assert }) => {
|
||||
const { par2ReleaseName } = await import('#lib/release/index')
|
||||
const eps = Array.from({ length: 20 }, (_, i) =>
|
||||
`SEAL.Team.S03E${String(i + 1).padStart(2, '0')}.1080p.AMZN.WEB-DL.AAC2.0.H.265.DUAL-nitrato.mkv`)
|
||||
assert.equal(par2ReleaseName(eps), 'SEAL.Team.S03.1080p.AMZN.WEB-DL.AAC2.0.H.265.DUAL-nitrato')
|
||||
// Movie plus sample and nfo: the movie's (longest) name.
|
||||
assert.equal(
|
||||
par2ReleaseName(['Some.Movie.2024.1080p.BluRay.x264-GRP.mkv', 'Some.Movie.2024.1080p.BluRay.x264-GRP.nfo', 'sample.mkv']),
|
||||
'Some.Movie.2024.1080p.BluRay.x264-GRP'
|
||||
)
|
||||
// Numbered parts: the shared name without the part number.
|
||||
assert.equal(par2ReleaseName(['Album.Name-2024-GRP.part01.rar', 'Album.Name-2024-GRP.part02.rar']), 'Album.Name-2024-GRP')
|
||||
assert.equal(par2ReleaseName(['only.one.file.2024.mkv']), 'only.one.file.2024')
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,162 @@
|
||||
import { test } from '@japa/runner'
|
||||
import { splitInstances, splitVerified, verifyVolume, type SplitArticle } from '#lib/split/index'
|
||||
import { crc32Hex } from '#lib/yenc/index'
|
||||
|
||||
/** Deterministic pseudo-random numbers. */
|
||||
function rng(seed: number) {
|
||||
let x = seed
|
||||
return () => {
|
||||
x = (x * 1103515245 + 12345) & 0x7fffffff
|
||||
return x / 0x7fffffff
|
||||
}
|
||||
}
|
||||
|
||||
interface PostOptions {
|
||||
volumes: number
|
||||
parts: number
|
||||
/** Parallel upload connections; they finish slightly out of order. */
|
||||
connections?: number
|
||||
/** First article number of the post. */
|
||||
start?: number
|
||||
/** Unrelated articles between two articles of this post (other posters). */
|
||||
noise?: number
|
||||
/** Fraction of articles that never arrive. */
|
||||
drop?: number
|
||||
label?: string
|
||||
seed?: number
|
||||
}
|
||||
|
||||
/** Simulates a posting tool uploading equal-sized volumes. */
|
||||
function post(opts: PostOptions): SplitArticle[] {
|
||||
const random = rng(opts.seed ?? 1)
|
||||
const connections = opts.connections ?? 1
|
||||
const label = opts.label ?? 'p'
|
||||
const queue: { volume: number; number: number }[] = []
|
||||
for (let v = 0; v < opts.volumes; v++) for (let n = 1; n <= opts.parts; n++) queue.push({ volume: v, number: n })
|
||||
|
||||
const articles: SplitArticle[] = []
|
||||
let articleNumber = opts.start ?? 1000
|
||||
for (let i = 0; i < queue.length; i += connections) {
|
||||
// One round: each connection posts one article; they land in random order.
|
||||
const round = queue.slice(i, i + connections).sort(() => random() - 0.5)
|
||||
for (const { volume, number } of round) {
|
||||
articleNumber += 1 + Math.floor(random() * (opts.noise ?? 0))
|
||||
if (random() < (opts.drop ?? 0)) continue
|
||||
articles.push({ number, messageId: `${label}${volume}.${number}`, bytes: 700_000, articleNumber })
|
||||
}
|
||||
}
|
||||
return articles
|
||||
}
|
||||
|
||||
/** Source volume of an article, from its simulated message-id. */
|
||||
const source = (a: SplitArticle) => a.messageId.split('.')[0]
|
||||
|
||||
/** Every result volume must contain articles of one source volume only. */
|
||||
function assertPure(assert: any, volumes: SplitArticle[][]) {
|
||||
for (const volume of volumes) {
|
||||
assert.lengthOf(new Set(volume.map(source)), 1, `mixed volume: ${volume.map((a) => a.messageId).join(' ')}`)
|
||||
}
|
||||
}
|
||||
|
||||
test.group('split / splitInstances', () => {
|
||||
test('separates sequentially posted volumes', ({ assert }) => {
|
||||
const volumes = splitInstances(post({ volumes: 3, parts: 14 }), { totalParts: 14 })
|
||||
assert.lengthOf(volumes, 3)
|
||||
assertPure(assert, volumes)
|
||||
assert.isTrue(volumes.every((v) => v.length === 14))
|
||||
})
|
||||
|
||||
test('separates volumes posted over interleaved connections, out of order', ({ assert }) => {
|
||||
for (const seed of [1, 2, 3, 4, 5]) {
|
||||
const volumes = splitInstances(post({ volumes: 6, parts: 40, connections: 8, noise: 30, seed }), { totalParts: 40 })
|
||||
assertPure(assert, volumes)
|
||||
assert.lengthOf(volumes, 6, `seed ${seed}`)
|
||||
}
|
||||
})
|
||||
|
||||
test('a volume that completes is never mixed, even with heavy loss', ({ assert }) => {
|
||||
for (const seed of [11, 12, 13, 14, 15, 16, 17, 18]) {
|
||||
const articles = post({ volumes: 5, parts: 30, connections: 6, noise: 20, drop: 0.2, seed })
|
||||
const volumes = splitInstances(articles, { totalParts: 30 })
|
||||
assertPure(assert, volumes.filter((v) => v.length === 30))
|
||||
}
|
||||
})
|
||||
|
||||
test('a missing article only affects its own volume', ({ assert }) => {
|
||||
const articles = post({ volumes: 4, parts: 20, connections: 4, drop: 0.05, seed: 7 })
|
||||
const volumes = splitInstances(articles, { totalParts: 20 })
|
||||
assertPure(assert, volumes)
|
||||
assert.lengthOf(volumes, 4)
|
||||
})
|
||||
|
||||
test('posts of the same size at different times do not mix', ({ assert }) => {
|
||||
// An earlier post that lost articles (e.g. before the backfill window), then two more.
|
||||
const articles = [
|
||||
...post({ volumes: 3, parts: 14, connections: 4, drop: 0.3, label: 'a', start: 1_000, seed: 3 }),
|
||||
...post({ volumes: 3, parts: 14, connections: 4, label: 'b', start: 200_000, seed: 4 }),
|
||||
...post({ volumes: 2, parts: 14, connections: 2, label: 'c', start: 900_000, seed: 5 }),
|
||||
]
|
||||
const volumes = splitInstances(articles, { totalParts: 14 })
|
||||
// The damaged post may produce mixed volumes, but those stay incomplete
|
||||
// (they never become files); every volume that completes is pure.
|
||||
const complete = volumes.filter((v) => v.length === 14)
|
||||
assertPure(assert, complete)
|
||||
assert.includeMembers(complete.map((v) => source(v[0])), ['b0', 'b1', 'b2', 'c0', 'c1'])
|
||||
// The later, intact posts are not affected at all.
|
||||
assertPure(assert, volumes.filter((v) => !source(v[0]).startsWith('a')))
|
||||
})
|
||||
|
||||
test('ignores duplicate message-ids and does not depend on input order', ({ assert }) => {
|
||||
const articles = post({ volumes: 2, parts: 5, connections: 3, seed: 9 })
|
||||
const shuffled = [...articles].reverse().concat(articles[0])
|
||||
assert.deepEqual(splitInstances(shuffled, { totalParts: 5 }), splitInstances(articles, { totalParts: 5 }))
|
||||
})
|
||||
})
|
||||
|
||||
/** Like post(), with real data per volume so part and file CRCs are genuine. */
|
||||
function postWithCrcs(opts: PostOptions): SplitArticle[] {
|
||||
const random = rng((opts.seed ?? 1) + 1000)
|
||||
const size = 64
|
||||
const data = new Map<string, Buffer>()
|
||||
const articles = post(opts)
|
||||
for (const a of articles) {
|
||||
const volume = source(a)
|
||||
if (!data.has(volume)) {
|
||||
data.set(volume, Buffer.from(Array.from({ length: opts.parts * size }, () => Math.floor(random() * 256))))
|
||||
}
|
||||
const file = data.get(volume)!
|
||||
a.pcrc32 = crc32Hex(file.subarray((a.number - 1) * size, a.number * size))
|
||||
a.partSize = size
|
||||
a.fileCrc32 = a.number === opts.parts ? crc32Hex(file) : null
|
||||
}
|
||||
return articles
|
||||
}
|
||||
|
||||
test.group('split / verified', () => {
|
||||
test('verifyVolume accepts a correct volume and rejects a mixed one', ({ assert }) => {
|
||||
const articles = postWithCrcs({ volumes: 2, parts: 6 })
|
||||
const volumeA = articles.filter((a) => source(a) === 'p0')
|
||||
assert.isTrue(verifyVolume(volumeA, 6))
|
||||
const mixed = volumeA.map((a) => (a.number === 3 ? articles.find((b) => source(b) === 'p1' && b.number === 3)! : a))
|
||||
assert.isFalse(verifyVolume(mixed, 6))
|
||||
assert.isFalse(verifyVolume(volumeA.slice(0, 5), 6))
|
||||
})
|
||||
|
||||
test('only verified volumes come out, and they are never mixed', ({ assert }) => {
|
||||
for (const seed of [21, 22, 23, 24, 25, 26]) {
|
||||
const articles = [
|
||||
...postWithCrcs({ volumes: 4, parts: 30, connections: 16, noise: 20, drop: 0.05, label: 'a', seed }),
|
||||
...postWithCrcs({ volumes: 3, parts: 30, connections: 16, noise: 20, label: 'b', start: 300_000, seed: seed + 50 }),
|
||||
]
|
||||
for (const volume of splitVerified(articles, { totalParts: 30 })) {
|
||||
assert.isTrue(verifyVolume(volume, 30))
|
||||
assertPure(assert, [volume])
|
||||
}
|
||||
}
|
||||
})
|
||||
|
||||
test('recovers every volume of a cleanly posted set', ({ assert }) => {
|
||||
const volumes = splitVerified(postWithCrcs({ volumes: 5, parts: 20, connections: 4, noise: 10, seed: 31 }), { totalParts: 20 })
|
||||
assert.lengthOf(volumes, 5)
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,70 @@
|
||||
import { test } from '@japa/runner'
|
||||
import { deflateRawSync } from 'node:zlib'
|
||||
import { decodeSpotBinary, parseSpotArticleHeaders, parseSpotHeader, parseSpotXml, verifySpotHeader } from '#lib/spotnet/index'
|
||||
|
||||
// A real spot from free.pt (self-signed, key 7), 2026-09-28.
|
||||
const SPOT = {"from": "Bart <0RnzK11s9B4jqZdfc0UHj1qpSrgBw7nKaYBPckvJuk8sKchVXvdofY6qcKkZE-s9x.Fbc6Dm09v32bUgXpDT88QADBHELZ7wP4sMIMHKpQYxBIlK-pZveUFu0aMYUx-pUf6Z@17a09b03c07c10d17z00.21651233204.20.1790619886.1.NL.Uyf3JHAAlVvgAg9HKIu3veFDGC4DX9-sgTnchacVAkC-p3USalOe-sacdamKdgXirL6>", "subject": "The.Incredible.Shrinking.Woman.1981.1080p.BluRay.REMUX.AVC.FLAC.2.0-MuGi | Bart", "id": "<jWCbaAa4f1A7LC6agmOEx@spot.net>", "date": "Mon, 28 Sep 2026 18:24:45 GMT"}
|
||||
|
||||
test.group('spotnet / headers', () => {
|
||||
test('parses a spot header', ({ assert }) => {
|
||||
const spot = parseSpotHeader(SPOT.from, SPOT.subject, SPOT.id, SPOT.date)!
|
||||
assert.include(spot, {
|
||||
poster: 'Bart',
|
||||
title: 'The.Incredible.Shrinking.Woman.1981.1080p.BluRay.REMUX.AVC.FLAC.2.0-MuGi',
|
||||
tag: 'Bart',
|
||||
category: 0,
|
||||
keyId: 7,
|
||||
size: 21651233204,
|
||||
messageId: 'jWCbaAa4f1A7LC6agmOEx@spot.net',
|
||||
})
|
||||
assert.deepEqual(spot.subcats, { a: [9], b: [3], c: [7, 10], d: [17], z: [0] })
|
||||
})
|
||||
|
||||
test('verifies its signatures, and rejects another message id', ({ assert }) => {
|
||||
const spot = parseSpotHeader(SPOT.from, SPOT.subject, SPOT.id, SPOT.date)!
|
||||
assert.isTrue(verifySpotHeader(spot))
|
||||
assert.isFalse(verifySpotHeader({ ...spot, messageId: 'other@spot.net' }))
|
||||
assert.isNull(parseSpotHeader('someone <x@y>', 'subject', '<a@b>'))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('spotnet / xml and nzb', () => {
|
||||
test('reads the NZB segments and category from the X-XML lines', ({ assert }) => {
|
||||
const raw = [
|
||||
'From: Bart <x@y>',
|
||||
'X-XML: <Spotnet><Posting><Key>7</Key><Title>A & B</Title><Category>01<Sub>01a09</Sub>',
|
||||
'X-XML: <Sub>01z00</Sub></Category><NZB><Segment>abc@spot.net</Segment><Segment>def@spot.net</Segment></NZB>',
|
||||
'X-XML: <Size>123</Size></Posting></Spotnet>',
|
||||
].join('\r\n')
|
||||
const { headers, xml } = parseSpotArticleHeaders(raw)
|
||||
assert.equal(headers.from, 'Bart <x@y>')
|
||||
const spot = parseSpotXml(xml)!
|
||||
assert.deepEqual(spot.nzbSegments, ['abc@spot.net', 'def@spot.net'])
|
||||
assert.include(spot, { title: 'A & B', category: 0, size: 123 })
|
||||
assert.deepEqual(spot.subcats, ['01a09', '01z00'])
|
||||
})
|
||||
|
||||
test('decodes an escaped, deflated NZB split over articles', ({ assert }) => {
|
||||
const nzb = '<?xml version="1.0"?>\n<nzb>\r\n=\0</nzb>'.repeat(20)
|
||||
const escaped = deflateRawSync(Buffer.from(nzb, 'latin1'))
|
||||
.toString('latin1')
|
||||
.replace(/[=\n\r\0]/g, (c) => ({ '=': '=D', '\n': '=C', '\r': '=B', '\0': '=A' })[c]!)
|
||||
// Posted as lines, dot-stuffed, over two articles.
|
||||
const lines = escaped.match(/.{1,40}/gs)!.map((l) => (l.startsWith('.') ? '.' + l : l))
|
||||
const half = Math.ceil(lines.length / 2)
|
||||
const bodies = [lines.slice(0, half), lines.slice(half)].map((ls) => Buffer.from(ls.join('\r\n'), 'latin1'))
|
||||
assert.equal(decodeSpotBinary(bodies).toString('latin1'), nzb)
|
||||
})
|
||||
})
|
||||
|
||||
test.group('spotnet / moderation', () => {
|
||||
test('recognises delete and dispose commands from key 2 only', async ({ assert }) => {
|
||||
const { moderationTarget, spotterId } = await import('#lib/spotnet/index')
|
||||
assert.equal(moderationTarget({ keyId: 2, title: 'DISPOSE 7IzfA0aCFTkOne6agvY06@spot.net - The Voice DE S15E07 (1080p)' }), '7IzfA0aCFTkOne6agvY06@spot.net')
|
||||
assert.equal(moderationTarget({ keyId: 2, title: 'delete <abc@spot.net>' }), 'abc@spot.net')
|
||||
assert.isNull(moderationTarget({ keyId: 7, title: 'DISPOSE abc@spot.net' }))
|
||||
assert.isNull(moderationTarget({ keyId: 2, title: 'The Disposal 2024' }))
|
||||
// Spotweb: base64 of the little-endian CRC32 of the key, without / + =.
|
||||
assert.match(spotterId('0RnzK11s9B4jqZdfc0UHj1qpSrgBw7nKaYBPckvJuk8sKchVXvdofY6qcKkZE/9x'), /^[A-Za-z0-9]{6}$/)
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,108 @@
|
||||
import { test } from '@japa/runner'
|
||||
import { fileKey, parseSubject } from '#lib/subject/index'
|
||||
import { parseXrefGroups } from '#lib/nntp/xref'
|
||||
import { inferTotalParts } from '#lib/yenc/index'
|
||||
|
||||
test.group('subject / parseSubject', () => {
|
||||
test('parses file counter, filename and segment counter', ({ assert }) => {
|
||||
assert.deepEqual(parseSubject('. - [09/51] - "obrMkrDeLmbhaouwYO34.part08.rar" yEnc (56/274)'), {
|
||||
name: 'obrMkrDeLmbhaouwYO34.part08.rar',
|
||||
segment: 56,
|
||||
totalSegments: 274,
|
||||
fileIndex: 9,
|
||||
fileTotal: 51,
|
||||
base: '. - [09/51] - "obrMkrDeLmbhaouwYO34.part08.rar" yEnc',
|
||||
})
|
||||
})
|
||||
|
||||
test('handles a file size after the segment counter', ({ assert }) => {
|
||||
const subject = '[8/9] - "x.tar.zst.vol063+064.par2" yEnc (37/72) 51315352'
|
||||
const parsed = parseSubject(subject)!
|
||||
assert.equal(parsed.segment, 37)
|
||||
assert.equal(parsed.totalSegments, 72)
|
||||
assert.equal(parsed.base, '[8/9] - "x.tar.zst.vol063+064.par2" yEnc 51315352')
|
||||
})
|
||||
|
||||
test('ignores counters inside the filename', ({ assert }) => {
|
||||
const parsed = parseSubject('"Show (1/2) Special.mkv" yEnc (3/10)')!
|
||||
assert.equal(parsed.name, 'Show (1/2) Special.mkv')
|
||||
assert.equal(parsed.segment, 3)
|
||||
assert.equal(parsed.totalSegments, 10)
|
||||
})
|
||||
|
||||
test('the base is equal for all segments of one file', ({ assert }) => {
|
||||
const a = parseSubject('[1/9] - "a.tar.zst" yEnc (253/1000) 716554110')!
|
||||
const b = parseSubject('[1/9] - "a.tar.zst" yEnc (254/1000) 716554110')!
|
||||
assert.equal(a.base, b.base)
|
||||
})
|
||||
|
||||
test('returns null for obfuscated or invalid subjects', ({ assert }) => {
|
||||
assert.isNull(parseSubject('GZFDJc0hB3Y0FwwAznkk'))
|
||||
assert.isNull(parseSubject('"name.rar" yEnc'))
|
||||
assert.isNull(parseSubject('"name.rar" yEnc (0/5)'))
|
||||
assert.isNull(parseSubject('"name.rar" yEnc (6/5)'))
|
||||
assert.isNull(parseSubject('"" yEnc (1/5)'))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('subject / fileKey', () => {
|
||||
test('differs per poster and per segment count, is stable otherwise', ({ assert }) => {
|
||||
const key = fileKey('poster@a', '"x.rar" yEnc', 10)
|
||||
assert.lengthOf(key, 40)
|
||||
assert.equal(key, fileKey('poster@a', '"x.rar" yEnc', 10))
|
||||
assert.notEqual(key, fileKey('poster@b', '"x.rar" yEnc', 10))
|
||||
assert.notEqual(key, fileKey('poster@a', '"x.rar" yEnc', 11))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('nntp / parseXrefGroups', () => {
|
||||
test('extracts crossposted groups', ({ assert }) => {
|
||||
assert.deepEqual(
|
||||
parseXrefGroups('news.eweka.nl alt.binaries.nl:35801424104 alt.binaries.test:27275430913'),
|
||||
['alt.binaries.nl', 'alt.binaries.test']
|
||||
)
|
||||
assert.deepEqual(parseXrefGroups(undefined), [])
|
||||
})
|
||||
})
|
||||
|
||||
test.group('yenc / inferTotalParts', () => {
|
||||
const size = 104857600
|
||||
const partSize = 384000
|
||||
|
||||
test('uses total= when present', ({ assert }) => {
|
||||
assert.equal(inferTotalParts({ begin: { part: 2, total: 7, line: 128, size, name: 'a' } }), 7)
|
||||
})
|
||||
|
||||
test('derives the total from the part size for middle and last parts', ({ assert }) => {
|
||||
const expected = Math.ceil(size / partSize) // 274, as in the subject "(56/274)"
|
||||
assert.equal(expected, 274)
|
||||
assert.equal(
|
||||
inferTotalParts({
|
||||
begin: { part: 56, line: 128, size, name: 'a' },
|
||||
part: { begin: 21120001, end: 21504000 },
|
||||
}),
|
||||
expected
|
||||
)
|
||||
assert.equal(
|
||||
inferTotalParts({
|
||||
begin: { part: 274, line: 128, size, name: 'a' },
|
||||
part: { begin: 273 * partSize + 1, end: size },
|
||||
}),
|
||||
274
|
||||
)
|
||||
})
|
||||
|
||||
test('single-part posts have one part', ({ assert }) => {
|
||||
assert.equal(inferTotalParts({ begin: { line: 128, size: 10, name: 'a' } }), 1)
|
||||
})
|
||||
})
|
||||
|
||||
test.group('indexer / skipBodyMessageIds', () => {
|
||||
test('matches the multi-group uploader, not other posts', async ({ assert }) => {
|
||||
const { default: indexerConfig } = await import('#config/indexer')
|
||||
const skip = (id: string) => indexerConfig.skipBodyMessageIds.some((re) => re.test(id))
|
||||
assert.isTrue(skip('<b800526$4db823e$6544066@d810c77fc0.d15fa>'))
|
||||
assert.isFalse(skip('<Part56of274.4B8CB0C9360F4548AB800FEDCB39CE07@1790532933.local>'))
|
||||
assert.isFalse(skip('<a6a525b170f44d68a756f1ba6fbd4c60@ngPost>'))
|
||||
})
|
||||
})
|
||||
@@ -0,0 +1,192 @@
|
||||
import { test } from '@japa/runner'
|
||||
import yencode from 'yencode'
|
||||
import {
|
||||
YencCrcError,
|
||||
YencError,
|
||||
YencFile,
|
||||
crc32Hex,
|
||||
decodeSegment,
|
||||
parseYencMeta,
|
||||
} from '#lib/yenc/index'
|
||||
|
||||
/** Builds an article body as a yEnc poster would send it. */
|
||||
function article(
|
||||
data: Buffer,
|
||||
opts: { name: string; fileSize?: number; part?: number; total?: number; begin?: number; fileCrc?: string }
|
||||
) {
|
||||
const fileSize = opts.fileSize ?? data.length
|
||||
const encoded = yencode.encode(data).toString('latin1')
|
||||
const lines: string[] = []
|
||||
if (opts.part) {
|
||||
lines.push(`=ybegin part=${opts.part} total=${opts.total} line=128 size=${fileSize} name=${opts.name}`)
|
||||
const begin = opts.begin ?? 1
|
||||
lines.push(`=ypart begin=${begin} end=${begin + data.length - 1}`)
|
||||
lines.push(encoded)
|
||||
const fileCrc = opts.fileCrc ? ` crc32=${opts.fileCrc}` : ''
|
||||
lines.push(`=yend size=${data.length} part=${opts.part} pcrc32=${crc32Hex(data)}${fileCrc}`)
|
||||
} else {
|
||||
lines.push(`=ybegin line=128 size=${fileSize} name=${opts.name}`)
|
||||
lines.push(encoded)
|
||||
lines.push(`=yend size=${data.length} crc32=${crc32Hex(data)}`)
|
||||
}
|
||||
return Buffer.from(lines.join('\r\n'), 'latin1')
|
||||
}
|
||||
|
||||
function randomBytes(length: number, seed = 1) {
|
||||
const buf = Buffer.alloc(length)
|
||||
let x = seed
|
||||
for (let i = 0; i < length; i++) {
|
||||
x = (x * 1103515245 + 12345) & 0x7fffffff
|
||||
buf[i] = x & 0xff
|
||||
}
|
||||
return buf
|
||||
}
|
||||
|
||||
test.group('yenc / parseYencMeta', () => {
|
||||
test('parses a multi-part header as seen on alt.binaries.test', ({ assert }) => {
|
||||
const body = Buffer.from(
|
||||
'=ybegin part=56 line=128 size=104857600 name=obrMkrDeLmbhaouwYO34.part08.rar\r\n' +
|
||||
'=ypart begin=21120001 end=21504000\r\n' +
|
||||
'xyz\r\n' +
|
||||
'=yend size=384000 part=56 pcrc32=B6339AFC',
|
||||
'latin1'
|
||||
)
|
||||
const meta = parseYencMeta(body)
|
||||
assert.deepEqual(meta.begin, {
|
||||
part: 56,
|
||||
total: undefined,
|
||||
line: 128,
|
||||
size: 104857600,
|
||||
name: 'obrMkrDeLmbhaouwYO34.part08.rar',
|
||||
})
|
||||
assert.deepEqual(meta.part, { begin: 21120001, end: 21504000 })
|
||||
assert.deepEqual(meta.end, { size: 384000, part: 56, pcrc32: 'b6339afc', crc32: undefined })
|
||||
assert.equal(body.subarray(meta.dataStart, meta.dataEnd).toString(), 'xyz')
|
||||
})
|
||||
|
||||
test('keeps spaces and "=" in the filename', ({ assert }) => {
|
||||
const body = article(Buffer.from('hi'), { name: 'My File = v2 (final).nfo' })
|
||||
assert.equal(parseYencMeta(body).begin.name, 'My File = v2 (final).nfo')
|
||||
})
|
||||
|
||||
test('ignores leading blank lines before =ybegin', ({ assert }) => {
|
||||
const body = Buffer.concat([Buffer.from('\r\n\r\n'), article(Buffer.from('hi'), { name: 'a.txt' })])
|
||||
assert.equal(parseYencMeta(body).begin.name, 'a.txt')
|
||||
})
|
||||
|
||||
test('rejects bodies without yEnc markers', ({ assert }) => {
|
||||
assert.throws(() => parseYencMeta(Buffer.from('plain text\r\n')), /=ybegin/)
|
||||
assert.throws(() => parseYencMeta(Buffer.from('=ybegin line=128 size=2 name=a\r\nxx')), /=yend/)
|
||||
})
|
||||
})
|
||||
|
||||
test.group('yenc / decodeSegment', () => {
|
||||
test('round-trips a single-part post and checks crc32', ({ assert }) => {
|
||||
const data = randomBytes(5000)
|
||||
const segment = decodeSegment(article(data, { name: 'single.bin' }))
|
||||
assert.isTrue(segment.data.equals(data))
|
||||
assert.equal(segment.offset, 0)
|
||||
})
|
||||
|
||||
test('throws YencCrcError on a corrupted part', ({ assert }) => {
|
||||
const body = article(randomBytes(1000), { name: 'x.bin', part: 1, total: 1 })
|
||||
const index = body.indexOf('\r\n=ypart') + 60
|
||||
body[index] = body[index] === 0x41 ? 0x42 : 0x41
|
||||
assert.throws(() => decodeSegment(body), YencCrcError as any)
|
||||
})
|
||||
|
||||
test('undoes NNTP dot-stuffing', ({ assert }) => {
|
||||
// Byte 4 encodes to "." (4 + 42 = 46). An unescaped leading "." is dot-stuffed to "..".
|
||||
const data = Buffer.from([4, 5, 6])
|
||||
const body = Buffer.from(
|
||||
`=ybegin line=128 size=3 name=dot.bin\r\n../0\r\n=yend size=3 crc32=${crc32Hex(data)}`,
|
||||
'latin1'
|
||||
)
|
||||
assert.isTrue(decodeSegment(body).data.equals(data))
|
||||
assert.throws(() => decodeSegment(body, { stripDots: false }), YencError as any)
|
||||
})
|
||||
})
|
||||
|
||||
test.group('yenc / YencFile', () => {
|
||||
test('assembles parts added out of order and verifies the file crc', ({ assert }) => {
|
||||
const file = randomBytes(10_000, 7)
|
||||
const chunk = 3000
|
||||
const total = Math.ceil(file.length / chunk)
|
||||
const bodies = Array.from({ length: total }, (_, i) =>
|
||||
article(file.subarray(i * chunk, (i + 1) * chunk), {
|
||||
name: 'multi.rar',
|
||||
fileSize: file.length,
|
||||
part: i + 1,
|
||||
total,
|
||||
begin: i * chunk + 1,
|
||||
fileCrc: i === total - 1 ? crc32Hex(file) : undefined,
|
||||
})
|
||||
)
|
||||
|
||||
const segments = bodies.map((body) => decodeSegment(body)).reverse()
|
||||
const yencFile = YencFile.fromSegment(segments[0])
|
||||
assert.equal(yencFile.totalParts, 4)
|
||||
|
||||
for (const segment of segments.slice(0, -1)) yencFile.add(segment)
|
||||
assert.isFalse(yencFile.isComplete)
|
||||
assert.deepEqual(yencFile.missingParts(), [1])
|
||||
assert.throws(() => yencFile.getBuffer(), /missing parts: 1/)
|
||||
|
||||
yencFile.add(segments.at(-1)!)
|
||||
yencFile.add(segments[0]) // duplicate is ignored
|
||||
assert.isTrue(yencFile.isComplete)
|
||||
assert.isTrue(yencFile.getBuffer().equals(file))
|
||||
})
|
||||
|
||||
test('rejects segments of a file with another size', ({ assert }) => {
|
||||
const a = decodeSegment(article(Buffer.from('aa'), { name: 'a.bin' }))
|
||||
const b = decodeSegment(article(Buffer.from('bbb'), { name: 'b.bin' }))
|
||||
assert.throws(() => YencFile.fromSegment(a).add(b), /does not belong to "a.bin"/)
|
||||
})
|
||||
|
||||
test('accepts segments with per-article random names', ({ assert }) => {
|
||||
const file = randomBytes(4000, 3)
|
||||
const [x, y] = [0, 1].map((i) =>
|
||||
decodeSegment(
|
||||
article(file.subarray(i * 2000, (i + 1) * 2000), {
|
||||
name: i === 0 ? 'Xq8r2Kd' : 'p0Lm3Zw',
|
||||
fileSize: 4000,
|
||||
part: i + 1,
|
||||
total: 2,
|
||||
begin: i * 2000 + 1,
|
||||
})
|
||||
)
|
||||
)
|
||||
const assembled = YencFile.fromSegment(x)
|
||||
assembled.add(x)
|
||||
assembled.add(y)
|
||||
assert.isTrue(assembled.getBuffer().equals(file))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('content / firstChunkMd5', () => {
|
||||
test('hashes the first 16 KiB of the decoded first part', async ({ assert }) => {
|
||||
const { firstChunkMd5 } = await import('#services/ContentService')
|
||||
const { createHash } = await import('node:crypto')
|
||||
const file = randomBytes(40_000, 5)
|
||||
const body = article(file.subarray(0, 20_000), { name: 'x.bin', fileSize: 40_000, part: 1, total: 2 })
|
||||
assert.equal(firstChunkMd5(body, 40_000), createHash('md5').update(file.subarray(0, 16384)).digest('hex'))
|
||||
// A first part shorter than 16 KiB of a larger file cannot give the fingerprint.
|
||||
const short = article(file.subarray(0, 1000), { name: 'x.bin', fileSize: 40_000, part: 1, total: 40 })
|
||||
assert.isUndefined(firstChunkMd5(short, 40_000))
|
||||
})
|
||||
})
|
||||
|
||||
test.group('yenc / YencFile without total=', () => {
|
||||
test('infers the part count when =ybegin has no total', ({ assert }) => {
|
||||
const file = randomBytes(5000, 11)
|
||||
const strip = (body: Buffer) => Buffer.from(body.toString('latin1').replace(/ total=\d+/, ''), 'latin1')
|
||||
const parts = [0, 1].map((i) =>
|
||||
decodeSegment(strip(article(file.subarray(i * 3000, (i + 1) * 3000), { name: 'n.nzb', fileSize: 5000, part: i + 1, total: 2, begin: i * 3000 + 1 })))
|
||||
)
|
||||
const assembled = YencFile.fromSegment(parts[0])
|
||||
assert.equal(assembled.totalParts, 2)
|
||||
parts.forEach((p) => assembled.add(p))
|
||||
assert.isTrue(assembled.getBuffer().equals(file))
|
||||
})
|
||||
})
|
||||
Reference in new issue
Block a user