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# SPDX-FileCopyrightText: Daniel Schadt
# SPDX-FileCopyrightText: Florian Bruhin (The Compiler) <mail@qutebrowser.org>
#
# SPDX-License-Identifier: GPL-3.0-or-later
import io
import textwrap
import re
import uuid
import pytest
mhtml = pytest.importorskip('qutebrowser.browser.webkit.mhtml')
@pytest.fixture(autouse=True)
def patch_uuid(monkeypatch):
monkeypatch.setattr(uuid, "uuid4", lambda: "UUID")
class Checker:
"""A helper to check mhtml output.
Attributes:
fp: A BytesIO object for passing to MHTMLWriter.write_to.
"""
def __init__(self):
self.fp = io.BytesIO()
@property
def value(self):
return self.fp.getvalue()
def expect(self, expected):
actual = self.value.decode('ascii')
# Make sure there are no stray \r or \n
assert re.search(r'\r[^\n]', actual) is None
assert re.search(r'[^\r]\n', actual) is None
actual = actual.replace('\r\n', '\n')
expected = textwrap.dedent(expected).lstrip('\n')
assert expected == actual
@pytest.fixture
def checker():
return Checker()
def test_quoted_printable_umlauts(checker):
content = 'Die süße Hündin läuft in die Höhle des Bären'
content = content.encode('iso-8859-1')
writer = mhtml.MHTMLWriter(root_content=content,
content_location='localhost',
content_type='text/plain')
writer.write_to(checker.fp)
checker.expect("""
Content-Type: multipart/related; boundary="---=_qute-UUID"
MIME-Version: 1.0
-----=_qute-UUID
Content-Location: localhost
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
Die s=FC=DFe H=FCndin l=E4uft in die H=F6hle des B=E4ren
-----=_qute-UUID--
""")
@pytest.mark.parametrize('header, value', [
('content_location', 'http://brötli.com'),
('content_type', 'text/pläin'),
])
def test_refuses_non_ascii_header_value(checker, header, value):
defaults = {
'root_content': b'',
'content_location': 'http://example.com',
'content_type': 'text/plain',
header: value,
}
writer = mhtml.MHTMLWriter(**defaults)
with pytest.raises(UnicodeEncodeError, match="'ascii' codec can't encode"):
writer.write_to(checker.fp)
def test_file_encoded_as_base64(checker):
content = b'Image file attached'
writer = mhtml.MHTMLWriter(root_content=content, content_type='text/plain',
content_location='http://example.com')
writer.add_file(location='http://a.example.com/image.png',
content='\U0001F601 image data'.encode('utf-8'),
content_type='image/png',
transfer_encoding=mhtml.E_BASE64)
writer.write_to(checker.fp)
checker.expect("""
Content-Type: multipart/related; boundary="---=_qute-UUID"
MIME-Version: 1.0
-----=_qute-UUID
Content-Location: http://example.com
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
Image file attached
-----=_qute-UUID
Content-Location: http://a.example.com/image.png
MIME-Version: 1.0
Content-Type: image/png
Content-Transfer-Encoding: base64
8J+YgSBpbWFnZSBkYXRh
-----=_qute-UUID--
""")
@pytest.mark.parametrize('transfer_encoding', [
pytest.param(mhtml.E_BASE64, id='base64'),
pytest.param(mhtml.E_QUOPRI, id='quoted-printable')])
def test_payload_lines_wrap(checker, transfer_encoding):
payload = b'1234567890' * 10
writer = mhtml.MHTMLWriter(root_content=b'', content_type='text/plain',
content_location='http://example.com')
writer.add_file(location='http://example.com/payload', content=payload,
content_type='text/plain',
transfer_encoding=transfer_encoding)
writer.write_to(checker.fp)
for line in checker.value.split(b'\r\n'):
assert len(line) < 77
def test_files_appear_sorted(checker):
writer = mhtml.MHTMLWriter(root_content=b'root file',
content_type='text/plain',
content_location='http://www.example.com/')
for subdomain in 'ahgbizt':
writer.add_file(location='http://{}.example.com/'.format(subdomain),
content='file {}'.format(subdomain).encode('utf-8'),
content_type='text/plain',
transfer_encoding=mhtml.E_QUOPRI)
writer.write_to(checker.fp)
checker.expect("""
Content-Type: multipart/related; boundary="---=_qute-UUID"
MIME-Version: 1.0
-----=_qute-UUID
Content-Location: http://www.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
root file
-----=_qute-UUID
Content-Location: http://a.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file a
-----=_qute-UUID
Content-Location: http://b.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file b
-----=_qute-UUID
Content-Location: http://g.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file g
-----=_qute-UUID
Content-Location: http://h.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file h
-----=_qute-UUID
Content-Location: http://i.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file i
-----=_qute-UUID
Content-Location: http://t.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file t
-----=_qute-UUID
Content-Location: http://z.example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
file z
-----=_qute-UUID--
""")
def test_empty_content_type(checker):
writer = mhtml.MHTMLWriter(root_content=b'',
content_location='http://example.com/',
content_type='text/plain')
writer.add_file('http://example.com/file', b'file content')
writer.write_to(checker.fp)
checker.expect("""
Content-Type: multipart/related; boundary="---=_qute-UUID"
MIME-Version: 1.0
-----=_qute-UUID
Content-Location: http://example.com/
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
-----=_qute-UUID
MIME-Version: 1.0
Content-Location: http://example.com/file
Content-Transfer-Encoding: quoted-printable
file content
-----=_qute-UUID--
""")
@pytest.mark.parametrize('style, expected_urls', [
pytest.param("@import 'default.css'", ['default.css'],
id='import with apostrophe'),
pytest.param('@import "default.css"', ['default.css'],
id='import with quote'),
pytest.param("@import \t 'tabbed.css'", ['tabbed.css'],
id='import with tab'),
pytest.param("@import url('default.css')", ['default.css'],
id='import with url()'),
pytest.param("""body {
background: url("/bg-img.png")
}""", ['/bg-img.png'], id='background with body'),
pytest.param('background: url(folder/file.png) no-repeat',
['folder/file.png'], id='background'),
pytest.param('content: url()', [], id='content'),
])
def test_css_url_scanner(monkeypatch, style, expected_urls):
expected_urls.sort()
urls = mhtml._get_css_imports(style)
urls.sort()
assert urls == expected_urls
def test_quoted_printable_spaces(checker):
content = b' ' * 100
writer = mhtml.MHTMLWriter(root_content=content,
content_location='localhost',
content_type='text/plain')
writer.write_to(checker.fp)
checker.expect("""
Content-Type: multipart/related; boundary="---=_qute-UUID"
MIME-Version: 1.0
-----=_qute-UUID
Content-Location: localhost
MIME-Version: 1.0
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
{}=
{}=20
-----=_qute-UUID--
""".format(' ' * 75, ' ' * 24))
class TestNoCloseBytesIO:
def test_fake_close(self):
fp = mhtml._NoCloseBytesIO()
fp.write(b'Value')
fp.close()
assert fp.getvalue() == b'Value'
fp.write(b'Eulav')
assert fp.getvalue() == b'ValueEulav'
def test_actual_close(self):
fp = mhtml._NoCloseBytesIO()
fp.write(b'Value')
fp.actual_close()
with pytest.raises(ValueError, match="I/O operation on closed file."):
fp.getvalue()
with pytest.raises(ValueError, match="I/O operation on closed file."):
fp.getvalue()
fp.write(b'Closed')
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