Files
webmail/lib/__tests__/eml-import.test.ts
T

91 lines
3.7 KiB
TypeScript

import { describe, it, expect } from 'vitest';
import JSZip from 'jszip';
import { expandImportableEmails, readMessageDate, EML_IMPORT_ACCEPT } from '@/lib/eml-import';
const emlFile = (name: string, content = 'raw email', type = 'message/rfc822') =>
new File([content], name, { type });
describe('expandImportableEmails', () => {
it('wraps a .eml file as a message/rfc822 blob, keeping its name', async () => {
const out = await expandImportableEmails([emlFile('msg.eml')]);
expect(out).toHaveLength(1);
expect(out[0].name).toBe('msg.eml');
expect(out[0].blob.type).toBe('message/rfc822');
await expect(out[0].blob.text()).resolves.toBe('raw email');
});
it('CHARACTERISATION: wraps a non-.eml, non-zip file as rfc822 too', async () => {
const out = await expandImportableEmails([emlFile('note.txt', 'hi', 'text/plain')]);
expect(out).toHaveLength(1);
expect(out[0]).toMatchObject({ name: 'note.txt' });
expect(out[0].blob.type).toBe('message/rfc822');
});
it('extracts only .eml entries from a .zip, stripping path prefixes', async () => {
const zip = new JSZip();
zip.file('a.eml', 'A');
zip.file('sub/b.eml', 'B');
zip.file('c.txt', 'C'); // skipped (not .eml)
zip.folder('emptydir'); // skipped (directory)
const blob = await zip.generateAsync({ type: 'blob' });
const file = new File([blob], 'archive.zip', { type: 'application/zip' });
const out = await expandImportableEmails([file]);
expect(out.map((e) => e.name).sort()).toEqual(['a.eml', 'b.eml']);
expect(out.every((e) => e.blob.type === 'message/rfc822')).toBe(true);
});
it('uses the zip path when the MIME type is application/zip even without a .zip name', async () => {
const zip = new JSZip();
zip.file('only.eml', 'X');
const blob = await zip.generateAsync({ type: 'blob' });
const file = new File([blob], 'archive-no-ext', { type: 'application/zip' });
const out = await expandImportableEmails([file]);
expect(out.map((e) => e.name)).toEqual(['only.eml']);
});
it('exposes the accept string for the file picker', () => {
expect(EML_IMPORT_ACCEPT).toBe('.eml,.zip,message/rfc822,application/zip');
});
});
describe('Date header as receivedAt (#891)', () => {
const CRLF = String.fromCharCode(13, 10);
const raw = [
'From: Alice <alice@example.com>',
'Subject: old mail',
'Date: Tue, 5 Mar 2019 09:30:00',
' +0100 (CET)',
'',
'Date: Wed, 1 Jan 2025 00:00:00 +0000',
'body',
].join(CRLF);
it('carries the Date header of an .eml file as a JMAP UTCDate', async () => {
const out = await expandImportableEmails([emlFile('old.eml', raw)]);
expect(out[0].receivedAt).toBe('2019-03-05T08:30:00Z');
});
it('carries the Date header of each .eml inside a .zip', async () => {
const zip = new JSZip();
zip.file('old.eml', raw);
const blob = await zip.generateAsync({ type: 'blob' });
const out = await expandImportableEmails([new File([blob], 'a.zip', { type: 'application/zip' })]);
expect(out[0].receivedAt).toBe('2019-03-05T08:30:00Z');
});
it('leaves receivedAt unset when there is no usable Date header', async () => {
const bodyOnly = ['Subject: x', '', 'Date: Tue, 5 Mar 2019 09:30:00 +0100'].join(CRLF);
await expect(readMessageDate(new Blob([bodyOnly]))).resolves.toBeUndefined();
const garbage = ['Date: not a date', '', 'body'].join(CRLF);
await expect(readMessageDate(new Blob([garbage]))).resolves.toBeUndefined();
});
it('ignores a Date header far in the future', async () => {
const now = Date.parse('2026-01-01T00:00:00Z');
const future = ['Date: Fri, 1 Jan 2027 00:00:00 +0000', '', 'body'].join(CRLF);
await expect(readMessageDate(new Blob([future]), now)).resolves.toBeUndefined();
});
});