def test_css_links_simple(self):
css_data = b'''@import url('wow.css');
body { background: url('cool.png') }
'''
reader = CSSReader()
links = set()
for link in reader.iter_links(io.BytesIO(css_data),
encoding='ascii',
context=True):
links.add(link)
self.assertEqual({('wow.css', 'import'), ('cool.png', 'url')}, links)
def test_css_read_links_huge(self):
css_data = b'\n'.join([
'url(blah{0});'.format(num).encode('ascii')
for num in range(200000)
])
reader = CSSReader()
self.assertGreater(len(css_data), reader.BUFFER_SIZE)
links = set()
for link in reader.iter_links(io.BytesIO(css_data), encoding='ascii'):
links.add(link)
self.assertEqual(len(links), 200000)
def test_css_read_links_huge(self):
css_data = b'\n'.join(
[
'url(blah{0});'.format(num).encode('ascii')
for num in range(200000)
]
)
reader = CSSReader()
self.assertGreater(len(css_data), reader.BUFFER_SIZE)
links = set()
for link in reader.iter_links(
io.BytesIO(css_data), encoding='ascii'):
links.add(link)
self.assertEqual(len(links), 200000)
def test_css_links_simple(self):
css_data = b'''@import url('wow.css');
body { background: url('cool.png') }
'''
reader = CSSReader()
links = set()
for link in reader.iter_links(
io.BytesIO(css_data), encoding='ascii', context=True):
links.add(link)
self.assertEqual(
{
('wow.css', 'import'),
('cool.png', 'url')
},
links
)
def _append_filename_extension(self, response):
'''Append an HTML/CSS file suffix as needed.'''
if not self._filename:
return
if response.request.url_info.scheme not in ('http', 'https'):
return
if not re.search(r'\.[hH][tT][mM][lL]?$', self._filename) and \
HTMLReader.is_response(response):
self._filename += '.html'
elif not re.search(r'\.[cC][sS][sS]$', self._filename) and \
CSSReader.is_response(response):
self._filename += '.css'
def _append_filename_extension(self, response: BaseResponse):
'''Append an HTML/CSS file suffix as needed.'''
if not self._filename:
return
if response.request.url_info.scheme not in ('http', 'https'):
return
if not re.search(r'\.[hH][tT][mM][lL]?$', self._filename) and \
HTMLReader.is_response(response):
self._filename += '.html'
elif not re.search(r'\.[cC][sS][sS]$', self._filename) and \
CSSReader.is_response(response):
self._filename += '.css'
def test_css_detect(self):
self.assertTrue(
CSSReader.is_file(
io.BytesIO('body { color: white }'.encode('utf-16le'))))
self.assertFalse(
CSSReader.is_file(io.BytesIO('hello world!'.encode('utf-16le'))))
self.assertFalse(CSSReader.is_file(io.BytesIO(b'<html><body>hello')))
self.assertTrue(
CSSReader.is_file(io.BytesIO(b'<html><body>hello')) is VeryFalse)
self.assertTrue(
CSSReader.is_file(io.BytesIO(b'h1 { background-color: red }')))
self.assertTrue(CSSReader.is_file(io.BytesIO(b'@import url.css;')))
self.assertTrue(
CSSReader.is_url(URLInfo.parse('example.com/index.css')))
self.assertFalse(
CSSReader.is_url(URLInfo.parse('example.com/image.jpg')))
self.assertTrue(CSSReader.is_request(Request('example.com/index.css')))
self.assertFalse(CSSReader.is_request(
Request('example.com/image.jpg')))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'text/css'
self.assertTrue(CSSReader.is_response(response))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'image/png'
self.assertFalse(CSSReader.is_response(response))
def test_css_detect(self):
self.assertTrue(CSSReader.is_file(
io.BytesIO('body { color: white }'.encode('utf-16le'))
))
self.assertFalse(CSSReader.is_file(
io.BytesIO('hello world!'.encode('utf-16le'))
))
self.assertFalse(CSSReader.is_file(
io.BytesIO(b'<html><body>hello')
))
self.assertTrue(CSSReader.is_file(
io.BytesIO(b'<html><body>hello')
) is VeryFalse)
self.assertTrue(CSSReader.is_file(
io.BytesIO(b'h1 { background-color: red }')
))
self.assertTrue(CSSReader.is_file(
io.BytesIO(b'@import url.css;')
))
self.assertTrue(
CSSReader.is_url(URLInfo.parse('example.com/index.css'))
)
self.assertFalse(
CSSReader.is_url(URLInfo.parse('example.com/image.jpg'))
)
self.assertTrue(
CSSReader.is_request(Request('example.com/index.css'))
)
self.assertFalse(
CSSReader.is_request(Request('example.com/image.jpg'))
)
response = Response(200, 'OK')
response.fields['Content-Type'] = 'text/css'
self.assertTrue(CSSReader.is_response(response))
response = Response(200, 'OK')
response.fields['Content-Type'] = 'image/png'
self.assertFalse(CSSReader.is_response(response))
