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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
var { get_about_message, open_message_from_file } = ChromeUtils.importESModule(
);
/**
* Check that a message/rfc822 attachment encoded with base64 (technically
* invalid per RFC 2046 but produced by real-world senders) is decoded and
* shown as a non-empty attachment rather than raw base64 data.
*/
add_task(async function test_rfc822_base64_attachment_decoded() {
const file = new FileUtils.File(
getTestFilePath("data/rfc822_base64_attachment.eml")
);
const msgc = await open_message_from_file(file);
const aboutMessage = get_about_message(msgc);
EventUtils.synthesizeMouseAtCenter(
aboutMessage.document.getElementById("attachmentToggle"),
{},
aboutMessage
);
Assert.equal(
aboutMessage.document.getElementById("attachmentList").itemCount,
1,
"base64-encoded message/rfc822 attachment should be visible"
);
const attachmentElem = aboutMessage.document
.getElementById("attachmentList")
.getItemAtIndex(0);
Assert.equal(
attachmentElem.attachment.contentType,
"message/rfc822",
"attachment content type should be message/rfc822"
);
// Name is derived from the inner message subject; falls back to
// "ForwardedMessage.eml" if the inner message was not parsed correctly.
Assert.equal(
attachmentElem.attachment.name,
"Hi.eml",
"attachment name should be derived from inner message subject"
);
// Size matches the decoded inner message, not the raw base64 blob; proxy for
// successful CTE decoding.
const size = attachmentElem.attachment.size;
Assert.ok(
size === 160 || size === 166,
`attachment size ${size}, expected 160 (LF) or 166 (CRLF)`
);
Assert.ok(
attachmentElem.attachment.hasFile,
"attachment should have file content"
);
Assert.ok(
!(await attachmentElem.attachment.isEmpty()),
"base64-encoded message/rfc822 attachment should not be empty"
);
await BrowserTestUtils.closeWindow(msgc);
});