Files
accounted/lib/api/__tests__/content-disposition.test.ts
T
Mattsson 321e684523 Fix/usr fdbck ch (#1105)
* fix(privacy): mask voucher amounts in session replays

* fix: persist transaction source filter

* fix: clarify invoice filenames and booking previews

* fix: truncate long uploaded filenames

* feat: add invoice delivery history

* fix: harden invoice delivery history

* fix: include invoice deliveries in full archive
2026-07-22 18:49:57 +02:00

115 lines
4.6 KiB
TypeScript

import { describe, it, expect } from 'vitest'
import { contentDisposition, contentDispositionFilename } from '../content-disposition'
describe('contentDisposition', () => {
it('passes a plain ASCII filename through unchanged in both forms', () => {
expect(contentDisposition('inline', 'kvitto.pdf')).toBe(
`inline; filename="kvitto.pdf"; filename*=UTF-8''kvitto.pdf`,
)
})
it('supports the attachment type', () => {
expect(contentDisposition('attachment', 'report.pdf')).toBe(
`attachment; filename="report.pdf"; filename*=UTF-8''report.pdf`,
)
})
it('produces a ByteString-safe value for an NFD Swedish filename', () => {
// macOS/iOS NFD upload: base letter + combining diaeresis U+0308 (776),
// the exact shape that crashed the inline route in prod.
const nfd = 'kvitto fo\u0308rvaring.pdf'
expect(nfd.charCodeAt(9)).toBe(776)
const header = contentDisposition('inline', nfd)
const maxCode = Math.max(...[...header].map((c) => c.charCodeAt(0)))
expect(maxCode).toBeLessThanOrEqual(255)
// The whole header is in fact printable ASCII.
expect(/^[\x20-\x7e]*$/.test(header)).toBe(true)
// filename* carries the NFC-composed UTF-8 percent-encoding of the name.
expect(header).toContain(`filename*=UTF-8''kvitto%20f%C3%B6rvaring.pdf`)
// The quoted fallback replaces the non-ASCII character with _.
expect(header).toContain('filename="kvitto f_rvaring.pdf"')
})
it('is stable across NFD and NFC inputs of the same name', () => {
const nfd = 'lo\u0308n.pdf' // o + combining diaeresis
const nfc = 'l\u00f6n.pdf' // precomposed \u00f6
expect(contentDisposition('inline', nfd)).toBe(contentDisposition('inline', nfc))
})
it('does not throw when used as an undici Headers value', () => {
const nfd = 'lo\u0308nespec_a\u030agren.pdf'
expect(
() => new Headers({ 'Content-Disposition': contentDisposition('inline', nfd) }),
).not.toThrow()
})
it('neutralizes header delimiters and CRLF injection', () => {
const header = contentDisposition('attachment', 'evil";\\\r\nSet-Cookie: x=y.pdf')
expect(header).not.toContain('\r')
expect(header).not.toContain('\n')
expect(header).toContain('filename="evil_____Set-Cookie: x=y.pdf"')
// The extended form percent-encodes them instead of emitting them raw.
expect(header).toContain('%22%3B%5C')
expect(header).toContain('%0D%0A')
})
it('replaces backslash in the quoted fallback', () => {
expect(contentDisposition('inline', 'a\\b.pdf')).toContain('filename="a_b.pdf"')
})
it(`percent-escapes ! ' ( ) * which encodeURIComponent leaves bare`, () => {
const header = contentDisposition('inline', "a!'()*.pdf")
expect(header).toContain(`filename*=UTF-8''a%21%27%28%29%2A.pdf`)
})
it('sanitizes a lone high surrogate instead of throwing', () => {
let header = ''
expect(() => {
header = contentDisposition('attachment', '\uD800')
}).not.toThrow()
// The lone surrogate becomes U+FFFD: _ in the fallback, percent-encoded
// UTF-8 (%EF%BF%BD) in the extended form.
expect(header).toBe(`attachment; filename="_"; filename*=UTF-8''%EF%BF%BD`)
expect(() => new Headers({ 'Content-Disposition': header })).not.toThrow()
})
it('sanitizes an embedded unpaired surrogate and keeps the rest of the name', () => {
let header = ''
expect(() => {
header = contentDisposition('inline', 'a\uD800b')
}).not.toThrow()
expect(header).toBe(`inline; filename="a_b"; filename*=UTF-8''a%EF%BF%BDb`)
expect(() => new Headers({ 'Content-Disposition': header })).not.toThrow()
})
it('keeps a valid surrogate pair (emoji) working unchanged', () => {
const header = contentDisposition('inline', 'r😀.pdf')
expect(header).toBe(`inline; filename="r__.pdf"; filename*=UTF-8''r%F0%9F%98%80.pdf`)
expect(() => new Headers({ 'Content-Disposition': header })).not.toThrow()
})
})
describe('contentDispositionFilename', () => {
it('prefers and decodes the UTF-8 filename', () => {
const header = contentDisposition(
'attachment',
'Företag x Kund AB Faktura nr 2621 20260721.pdf',
)
expect(contentDispositionFilename(header))
.toBe('Företag x Kund AB Faktura nr 2621 20260721.pdf')
})
it('falls back to the quoted ASCII filename', () => {
expect(contentDispositionFilename('attachment; filename="faktura-2621.pdf"'))
.toBe('faktura-2621.pdf')
})
it('returns null for a missing or malformed filename', () => {
expect(contentDispositionFilename(null)).toBeNull()
expect(contentDispositionFilename('attachment')).toBeNull()
})
})